diff options
Diffstat (limited to 'vendor/github.com/Benau/go_rlottie')
116 files changed, 50047 insertions, 0 deletions
diff --git a/vendor/github.com/Benau/go_rlottie/LICENSE b/vendor/github.com/Benau/go_rlottie/LICENSE new file mode 100644 index 00000000..86fd0417 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/LICENSE @@ -0,0 +1,24 @@ +The MIT License + +Copyright (c) 2021, (see AUTHORS) + +Permission is hereby granted, free of charge, to any person +obtaining a copy of this software and associated documentation +files (the "Software"), to deal in the Software without +restriction, including without limitation the rights to use, +copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the +Software is furnished to do so, subject to the following +conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES +OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/github.com/Benau/go_rlottie/README.md b/vendor/github.com/Benau/go_rlottie/README.md new file mode 100644 index 00000000..68fbb245 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/README.md @@ -0,0 +1 @@ +Go binding for https://github.com/Samsung/rlottie, example at https://github.com/Benau/tgsconverter diff --git a/vendor/github.com/Benau/go_rlottie/binding_c_lottieanimation_capi.cpp b/vendor/github.com/Benau/go_rlottie/binding_c_lottieanimation_capi.cpp new file mode 100644 index 00000000..9dc851e9 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/binding_c_lottieanimation_capi.cpp @@ -0,0 +1,284 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "rlottie.h" +#include "rlottie_capi.h" +#include "vector_vdebug.h" + +using namespace rlottie; + +extern "C" { +#include <string.h> +#include <stdarg.h> + +struct Lottie_Animation_S +{ + std::unique_ptr<Animation> mAnimation; + std::future<Surface> mRenderTask; + uint32_t *mBufferRef; + LOTMarkerList *mMarkerList; +}; + +RLOTTIE_API Lottie_Animation_S *lottie_animation_from_file(const char *path) +{ + if (auto animation = Animation::loadFromFile(path) ) { + Lottie_Animation_S *handle = new Lottie_Animation_S(); + handle->mAnimation = std::move(animation); + return handle; + } else { + return nullptr; + } +} + +RLOTTIE_API Lottie_Animation_S *lottie_animation_from_data(const char *data, const char *key, const char *resourcePath) +{ + if (auto animation = Animation::loadFromData(data, key, resourcePath) ) { + Lottie_Animation_S *handle = new Lottie_Animation_S(); + handle->mAnimation = std::move(animation); + return handle; + } else { + return nullptr; + } +} + +RLOTTIE_API void lottie_animation_destroy(Lottie_Animation_S *animation) +{ + if (animation) { + if (animation->mMarkerList) { + for(size_t i = 0; i < animation->mMarkerList->size; i++) { + if (animation->mMarkerList->ptr[i].name) free(animation->mMarkerList->ptr[i].name); + } + delete[] animation->mMarkerList->ptr; + delete animation->mMarkerList; + } + + if (animation->mRenderTask.valid()) { + animation->mRenderTask.get(); + } + animation->mAnimation = nullptr; + delete animation; + } +} + +RLOTTIE_API void lottie_animation_get_size(const Lottie_Animation_S *animation, size_t *width, size_t *height) +{ + if (!animation) return; + + animation->mAnimation->size(*width, *height); +} + +RLOTTIE_API double lottie_animation_get_duration(const Lottie_Animation_S *animation) +{ + if (!animation) return 0; + + return animation->mAnimation->duration(); +} + +RLOTTIE_API size_t lottie_animation_get_totalframe(const Lottie_Animation_S *animation) +{ + if (!animation) return 0; + + return animation->mAnimation->totalFrame(); +} + + +RLOTTIE_API double lottie_animation_get_framerate(const Lottie_Animation_S *animation) +{ + if (!animation) return 0; + + return animation->mAnimation->frameRate(); +} + +RLOTTIE_API const LOTLayerNode * lottie_animation_render_tree(Lottie_Animation_S *animation, size_t frame_num, size_t width, size_t height) +{ + if (!animation) return nullptr; + + return animation->mAnimation->renderTree(frame_num, width, height); +} + +RLOTTIE_API size_t +lottie_animation_get_frame_at_pos(const Lottie_Animation_S *animation, float pos) +{ + if (!animation) return 0; + + return animation->mAnimation->frameAtPos(pos); +} + +RLOTTIE_API void +lottie_animation_render(Lottie_Animation_S *animation, + size_t frame_number, + uint32_t *buffer, + size_t width, + size_t height, + size_t bytes_per_line) +{ + if (!animation) return; + + rlottie::Surface surface(buffer, width, height, bytes_per_line); + animation->mAnimation->renderSync(frame_number, surface); +} + +RLOTTIE_API void +lottie_animation_render_async(Lottie_Animation_S *animation, + size_t frame_number, + uint32_t *buffer, + size_t width, + size_t height, + size_t bytes_per_line) +{ + if (!animation) return; + + rlottie::Surface surface(buffer, width, height, bytes_per_line); + animation->mRenderTask = animation->mAnimation->render(frame_number, surface); + animation->mBufferRef = buffer; +} + +RLOTTIE_API uint32_t * +lottie_animation_render_flush(Lottie_Animation_S *animation) +{ + if (!animation) return nullptr; + + if (animation->mRenderTask.valid()) { + animation->mRenderTask.get(); + } + + return animation->mBufferRef; +} + +RLOTTIE_API void +lottie_animation_property_override(Lottie_Animation_S *animation, + const Lottie_Animation_Property type, + const char *keypath, + ...) +{ + va_list prop; + va_start(prop, keypath); + const int arg_count = [type](){ + switch (type) { + case LOTTIE_ANIMATION_PROPERTY_FILLCOLOR: + case LOTTIE_ANIMATION_PROPERTY_STROKECOLOR: + return 3; + case LOTTIE_ANIMATION_PROPERTY_FILLOPACITY: + case LOTTIE_ANIMATION_PROPERTY_STROKEOPACITY: + case LOTTIE_ANIMATION_PROPERTY_STROKEWIDTH: + case LOTTIE_ANIMATION_PROPERTY_TR_ROTATION: + return 1; + case LOTTIE_ANIMATION_PROPERTY_TR_POSITION: + case LOTTIE_ANIMATION_PROPERTY_TR_SCALE: + return 2; + default: + return 0; + } + }(); + double v[3] = {0}; + for (int i = 0; i < arg_count ; i++) { + v[i] = va_arg(prop, double); + } + va_end(prop); + + switch(type) { + case LOTTIE_ANIMATION_PROPERTY_FILLCOLOR: { + double r = v[0]; + double g = v[1]; + double b = v[2]; + if (r > 1 || r < 0 || g > 1 || g < 0 || b > 1 || b < 0) break; + animation->mAnimation->setValue<rlottie::Property::FillColor>(keypath, rlottie::Color(r, g, b)); + break; + } + case LOTTIE_ANIMATION_PROPERTY_FILLOPACITY: { + double opacity = v[0]; + if (opacity > 100 || opacity < 0) break; + animation->mAnimation->setValue<rlottie::Property::FillOpacity>(keypath, (float)opacity); + break; + } + case LOTTIE_ANIMATION_PROPERTY_STROKECOLOR: { + double r = v[0]; + double g = v[1]; + double b = v[2]; + if (r > 1 || r < 0 || g > 1 || g < 0 || b > 1 || b < 0) break; + animation->mAnimation->setValue<rlottie::Property::StrokeColor>(keypath, rlottie::Color(r, g, b)); + break; + } + case LOTTIE_ANIMATION_PROPERTY_STROKEOPACITY: { + double opacity = v[0]; + if (opacity > 100 || opacity < 0) break; + animation->mAnimation->setValue<rlottie::Property::StrokeOpacity>(keypath, (float)opacity); + break; + } + case LOTTIE_ANIMATION_PROPERTY_STROKEWIDTH: { + double width = v[0]; + if (width < 0) break; + animation->mAnimation->setValue<rlottie::Property::StrokeWidth>(keypath, (float)width); + break; + } + case LOTTIE_ANIMATION_PROPERTY_TR_POSITION: { + double x = v[0]; + double y = v[1]; + animation->mAnimation->setValue<rlottie::Property::TrPosition>(keypath, rlottie::Point((float)x, (float)y)); + break; + } + case LOTTIE_ANIMATION_PROPERTY_TR_SCALE: { + double w = v[0]; + double h = v[1]; + animation->mAnimation->setValue<rlottie::Property::TrScale>(keypath, rlottie::Size((float)w, (float)h)); + break; + } + case LOTTIE_ANIMATION_PROPERTY_TR_ROTATION: { + double r = v[0]; + animation->mAnimation->setValue<rlottie::Property::TrRotation>(keypath, (float)r); + break; + } + case LOTTIE_ANIMATION_PROPERTY_TR_ANCHOR: + case LOTTIE_ANIMATION_PROPERTY_TR_OPACITY: + //@TODO handle propery update. + break; + } +} + +RLOTTIE_API const LOTMarkerList* +lottie_animation_get_markerlist(Lottie_Animation_S *animation) +{ + if (!animation) return nullptr; + + auto markers = animation->mAnimation->markers(); + if (markers.size() == 0) return nullptr; + if (animation->mMarkerList) return (const LOTMarkerList*)animation->mMarkerList; + + animation->mMarkerList = new LOTMarkerList(); + animation->mMarkerList->size = markers.size(); + animation->mMarkerList->ptr = new LOTMarker[markers.size()](); + + for(size_t i = 0; i < markers.size(); i++) { + animation->mMarkerList->ptr[i].name = strdup(std::get<0>(markers[i]).c_str()); + animation->mMarkerList->ptr[i].startframe= std::get<1>(markers[i]); + animation->mMarkerList->ptr[i].endframe= std::get<2>(markers[i]); + } + return (const LOTMarkerList*)animation->mMarkerList; +} + +RLOTTIE_API void +lottie_configure_model_cache_size(size_t cacheSize) +{ + rlottie::configureModelCacheSize(cacheSize); +} + +} diff --git a/vendor/github.com/Benau/go_rlottie/config.h b/vendor/github.com/Benau/go_rlottie/config.h new file mode 100644 index 00000000..21b16ee4 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/config.h @@ -0,0 +1,10 @@ +#ifndef GO_RLOTTIE_HPP +#define GO_RLOTTIE_HPP +#ifndef __APPLE__ +#ifdef __ARM_NEON__ +#define USE_ARM_NEON +#endif +#endif +#define LOTTIE_THREAD_SUPPORT +#define LOTTIE_CACHE_SUPPORT +#endif diff --git a/vendor/github.com/Benau/go_rlottie/generate_from_rlottie.py b/vendor/github.com/Benau/go_rlottie/generate_from_rlottie.py new file mode 100644 index 00000000..6c756b17 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/generate_from_rlottie.py @@ -0,0 +1,122 @@ +#!/usr/bin/python3 +# ./generate_from_rlottie.py /path/to/clean/rlottie/src/ /path/to/clean/rlottie/inc/ +import glob +import os +import re +import sys + +FILE_KEYS = {} + +def get_closest_local_header(header): + for full_path, local in FILE_KEYS.items(): + if os.path.basename(full_path) == header: + return local + return '' + +def fix_headers(code_text): + out = '' + has_neon = False + for line in code_text: + # Special fixes + if line == '#include <vpoint.h>': + line = '#include "vpoint.h"' + if line == '#include <vsharedptr.h>': + line = '#include "vsharedptr.h"' + if line == '#include <vglobal.h>': + line = '#include "vglobal.h"' + if line == '#include <vrect.h>': + line = '#include "vrect.h"' + # ARM on apple fixes + if '__ARM_NEON__' in line: + has_neon = True + line = line.replace('__ARM_NEON__', 'USE_ARM_NEON') + header_file = re.match('#include\s+["]([^"]+)["].*', line) + # regex to search for <, > too + #header_file = re.match('#include\s+[<"]([^>"]+)[>"].*', line) + if header_file: + header = header_file.groups()[0] + abs_header = os.path.abspath(header) + header_exists = os.path.exists(abs_header) + if header_exists and abs_header in FILE_KEYS: + out += '#include "' + FILE_KEYS[abs_header] + '"\n' + else: + local = get_closest_local_header(header) + if local != '': + out += '#include "' + local + '"\n' + else: + out += line + '\n' + else: + out += line + '\n' + if has_neon: + out = '#include "config.h"\n' + out + return out + +if len(sys.argv) < 2: + print('usage: ./generate_from_rlottie.py /path/to/clean/rlottie/src/ /path/to/clean/rlottie/inc/') + os._exit(1) + +code = ['.c', '.s', '.S', '.sx', 'cc', 'cpp', 'cpp' ] +header = ['.h', '.hh', '.hpp', '.hxx' ] + +# Remove old files +files = os.listdir('.') +for file in files: + if file.endswith(tuple(code)) or file.endswith(tuple(header)): + os.remove(os.path.join('.', file)) + +paths = [] +it = iter(sys.argv) +next(it, None) +for argv in it: + paths.append(argv) + +for path in paths: + for file in glob.iglob(path + '/**', recursive=True): + # Ignore msvc config.h and wasm file + if file.endswith('config.h') or 'wasm' in file: + continue + if file.endswith(tuple(code)) or file.endswith(tuple(header)): + key = os.path.abspath(file) + val = file.replace(path, '').replace('/', '_') + FILE_KEYS[key] = val + +header_check = [] +for full_path, local in FILE_KEYS.items(): + header_file = os.path.basename(full_path) + if header_file.endswith(tuple(code)): + continue + if not header_file in header_check: + header_check.append(header_file) + else: + print('WARNING: ' + header_file + ' has multiple reference in subdirectories') + +cur_dir = os.path.abspath('.') +for full_path, local in FILE_KEYS.items(): + os.chdir(os.path.dirname(full_path)) + with open(full_path) as code: + code_text = code.read().splitlines() + code.close() + fixed = fix_headers(code_text) + os.chdir(cur_dir) + local_file = open(local, "w") + local_file.write(fixed) + local_file.close() + +# Write config.h +config = '#ifndef GO_RLOTTIE_HPP\n#define GO_RLOTTIE_HPP\n' +# ARM on apple won't compile +config += '#ifndef __APPLE__\n#ifdef __ARM_NEON__\n#define USE_ARM_NEON\n#endif\n#endif\n' +config += '#define LOTTIE_THREAD_SUPPORT\n#define LOTTIE_CACHE_SUPPORT\n' +config += '#endif\n' +config_file = open('config.h', "w") +config_file.write(config) +config_file.close() + +# Fix vector_pixman_pixman-arm-neon-asm.S +with open('vector_pixman_pixman-arm-neon-asm.S') as code: + assembly = code.read() +code.close() +assembly = '#include "config.h"\n#ifdef USE_ARM_NEON\n' + assembly + '#endif\n' +fixed_assembly = open('vector_pixman_pixman-arm-neon-asm.S', "w") +fixed_assembly.write(assembly) +fixed_assembly.close() diff --git a/vendor/github.com/Benau/go_rlottie/go.mod b/vendor/github.com/Benau/go_rlottie/go.mod new file mode 100644 index 00000000..a2af3cf5 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/go.mod @@ -0,0 +1 @@ +module github.com/Benau/go_rlottie diff --git a/vendor/github.com/Benau/go_rlottie/go_rlottie.go b/vendor/github.com/Benau/go_rlottie/go_rlottie.go new file mode 100644 index 00000000..c53392e3 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/go_rlottie.go @@ -0,0 +1,56 @@ +package go_rlottie + +/* +#cgo !windows LDFLAGS: -lm +#cgo windows CFLAGS: -DRLOTTIE_BUILD=0 +#cgo windows CXXFLAGS: -DRLOTTIE_BUILD=0 +#cgo CXXFLAGS: -std=c++14 -fno-exceptions -fno-asynchronous-unwind-tables -fno-rtti -Wall -fvisibility=hidden -Wnon-virtual-dtor -Woverloaded-virtual -Wno-unused-parameter +#include "rlottie_capi.h" +void lottie_configure_model_cache_size(size_t cacheSize); +*/ +import "C" +import "unsafe" + +type Lottie_Animation *C.Lottie_Animation + +func LottieConfigureModelCacheSize(size uint) { + C.lottie_configure_model_cache_size(C.size_t(size)) +} + +func LottieAnimationFromData(data string, key string, resource_path string) Lottie_Animation { + var animation Lottie_Animation + animation = C.lottie_animation_from_data(C.CString(data), C.CString(key), C.CString(resource_path)) + return animation +} + +func LottieAnimationDestroy(animation Lottie_Animation) { + C.lottie_animation_destroy(animation) +} + +func LottieAnimationGetSize(animation Lottie_Animation) (uint, uint) { + var width C.size_t + var height C.size_t + C.lottie_animation_get_size(animation, &width, &height) + return uint(width), uint(height) +} + +func LottieAnimationGetTotalframe(animation Lottie_Animation) uint { + return uint(C.lottie_animation_get_totalframe(animation)) +} + +func LottieAnimationGetFramerate(animation Lottie_Animation) float64 { + return float64(C.lottie_animation_get_framerate(animation)) +} + +func LottieAnimationGetFrameAtPos(animation Lottie_Animation, pos float32) uint { + return uint(C.lottie_animation_get_frame_at_pos(animation, C.float(pos))) +} + +func LottieAnimationGetDuration(animation Lottie_Animation) float64 { + return float64(C.lottie_animation_get_duration(animation)) +} + +func LottieAnimationRender(animation Lottie_Animation, frame_num uint, buffer []byte, width uint, height uint, bytes_per_line uint) { + var ptr *C.uint32_t = (*C.uint32_t)(unsafe.Pointer(&buffer[0])); + C.lottie_animation_render(animation, C.size_t(frame_num), ptr, C.size_t(width), C.size_t(height), C.size_t(bytes_per_line)) +} diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottieanimation.cpp b/vendor/github.com/Benau/go_rlottie/lottie_lottieanimation.cpp new file mode 100644 index 00000000..341489b3 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottieanimation.cpp @@ -0,0 +1,457 @@ +#include "config.h" +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "config.h" +#include "lottie_lottieitem.h" +#include "lottie_lottiemodel.h" +#include "rlottie.h" + +#include <fstream> + +using namespace rlottie; +using namespace rlottie::internal; + +RLOTTIE_API void rlottie::configureModelCacheSize(size_t cacheSize) +{ + internal::model::configureModelCacheSize(cacheSize); +} + +struct RenderTask { + RenderTask() { receiver = sender.get_future(); } + std::promise<Surface> sender; + std::future<Surface> receiver; + AnimationImpl * playerImpl{nullptr}; + size_t frameNo{0}; + Surface surface; + bool keepAspectRatio{true}; +}; +using SharedRenderTask = std::shared_ptr<RenderTask>; + +class AnimationImpl { +public: + void init(std::shared_ptr<model::Composition> composition); + bool update(size_t frameNo, const VSize &size, bool keepAspectRatio); + VSize size() const { return mModel->size(); } + double duration() const { return mModel->duration(); } + double frameRate() const { return mModel->frameRate(); } + size_t totalFrame() const { return mModel->totalFrame(); } + size_t frameAtPos(double pos) const { return mModel->frameAtPos(pos); } + Surface render(size_t frameNo, const Surface &surface, + bool keepAspectRatio); + std::future<Surface> renderAsync(size_t frameNo, Surface &&surface, + bool keepAspectRatio); + const LOTLayerNode * renderTree(size_t frameNo, const VSize &size); + + const LayerInfoList &layerInfoList() const + { + if (mLayerList.empty()) { + mLayerList = mModel->layerInfoList(); + } + return mLayerList; + } + const MarkerList &markers() const { return mModel->markers(); } + void setValue(const std::string &keypath, LOTVariant &&value); + void removeFilter(const std::string &keypath, Property prop); + +private: + mutable LayerInfoList mLayerList; + model::Composition * mModel; + SharedRenderTask mTask; + std::atomic<bool> mRenderInProgress; + std::unique_ptr<renderer::Composition> mRenderer{nullptr}; +}; + +void AnimationImpl::setValue(const std::string &keypath, LOTVariant &&value) +{ + if (keypath.empty()) return; + mRenderer->setValue(keypath, value); +} + +const LOTLayerNode *AnimationImpl::renderTree(size_t frameNo, const VSize &size) +{ + if (update(frameNo, size, true)) { + mRenderer->buildRenderTree(); + } + return mRenderer->renderTree(); +} + +bool AnimationImpl::update(size_t frameNo, const VSize &size, + bool keepAspectRatio) +{ + frameNo += mModel->startFrame(); + + if (frameNo > mModel->endFrame()) frameNo = mModel->endFrame(); + + if (frameNo < mModel->startFrame()) frameNo = mModel->startFrame(); + + return mRenderer->update(int(frameNo), size, keepAspectRatio); +} + +Surface AnimationImpl::render(size_t frameNo, const Surface &surface, + bool keepAspectRatio) +{ + bool renderInProgress = mRenderInProgress.load(); + if (renderInProgress) { + vCritical << "Already Rendering Scheduled for this Animation"; + return surface; + } + + mRenderInProgress.store(true); + update( + frameNo, + VSize(int(surface.drawRegionWidth()), int(surface.drawRegionHeight())), + keepAspectRatio); + mRenderer->render(surface); + mRenderInProgress.store(false); + + return surface; +} + +void AnimationImpl::init(std::shared_ptr<model::Composition> composition) +{ + mModel = composition.get(); + mRenderer = std::make_unique<renderer::Composition>(composition); + mRenderInProgress = false; +} + +#ifdef LOTTIE_THREAD_SUPPORT + +#include <thread> +#include "vector_vtaskqueue.h" + +/* + * Implement a task stealing schduler to perform render task + * As each player draws into its own buffer we can delegate this + * task to a slave thread. The scheduler creates a threadpool depending + * on the number of cores available in the system and does a simple fair + * scheduling by assigning the task in a round-robin fashion. Each thread + * in the threadpool has its own queue. once it finishes all the task on its + * own queue it goes through rest of the queue and looks for task if it founds + * one it steals the task from it and executes. if it couldn't find one then it + * just waits for new task on its own queue. + */ +class RenderTaskScheduler { + const unsigned _count{std::thread::hardware_concurrency()}; + std::vector<std::thread> _threads; + std::vector<TaskQueue<SharedRenderTask>> _q{_count}; + std::atomic<unsigned> _index{0}; + + void run(unsigned i) + { + while (true) { + bool success = false; + SharedRenderTask task; + for (unsigned n = 0; n != _count * 2; ++n) { + if (_q[(i + n) % _count].try_pop(task)) { + success = true; + break; + } + } + if (!success && !_q[i].pop(task)) break; + + auto result = task->playerImpl->render(task->frameNo, task->surface, + task->keepAspectRatio); + task->sender.set_value(result); + } + } + + RenderTaskScheduler() + { + for (unsigned n = 0; n != _count; ++n) { + _threads.emplace_back([&, n] { run(n); }); + } + } + +public: + static RenderTaskScheduler &instance() + { + static RenderTaskScheduler singleton; + return singleton; + } + + ~RenderTaskScheduler() + { + for (auto &e : _q) e.done(); + + for (auto &e : _threads) e.join(); + } + + std::future<Surface> process(SharedRenderTask task) + { + auto receiver = std::move(task->receiver); + auto i = _index++; + + for (unsigned n = 0; n != _count; ++n) { + if (_q[(i + n) % _count].try_push(std::move(task))) return receiver; + } + + if (_count > 0) { + _q[i % _count].push(std::move(task)); + } + + return receiver; + } +}; + +#else +class RenderTaskScheduler { +public: + static RenderTaskScheduler &instance() + { + static RenderTaskScheduler singleton; + return singleton; + } + + std::future<Surface> process(SharedRenderTask task) + { + auto result = task->playerImpl->render(task->frameNo, task->surface, + task->keepAspectRatio); + task->sender.set_value(result); + return std::move(task->receiver); + } +}; +#endif + +std::future<Surface> AnimationImpl::renderAsync(size_t frameNo, + Surface &&surface, + bool keepAspectRatio) +{ + if (!mTask) { + mTask = std::make_shared<RenderTask>(); + } else { + mTask->sender = std::promise<Surface>(); + mTask->receiver = mTask->sender.get_future(); + } + mTask->playerImpl = this; + mTask->frameNo = frameNo; + mTask->surface = std::move(surface); + mTask->keepAspectRatio = keepAspectRatio; + + return RenderTaskScheduler::instance().process(mTask); +} + +/** + * \breif Brief abput the Api. + * Description about the setFilePath Api + * @param path add the details + */ +std::unique_ptr<Animation> Animation::loadFromData( + std::string jsonData, const std::string &key, + const std::string &resourcePath, bool cachePolicy) +{ + if (jsonData.empty()) { + vWarning << "jason data is empty"; + return nullptr; + } + + auto composition = model::loadFromData(std::move(jsonData), key, + resourcePath, cachePolicy); + if (composition) { + auto animation = std::unique_ptr<Animation>(new Animation); + animation->d->init(std::move(composition)); + return animation; + } + + return nullptr; +} + +std::unique_ptr<Animation> Animation::loadFromData(std::string jsonData, + std::string resourcePath, + ColorFilter filter) +{ + if (jsonData.empty()) { + vWarning << "jason data is empty"; + return nullptr; + } + + auto composition = model::loadFromData( + std::move(jsonData), std::move(resourcePath), std::move(filter)); + if (composition) { + auto animation = std::unique_ptr<Animation>(new Animation); + animation->d->init(std::move(composition)); + return animation; + } + return nullptr; +} + +std::unique_ptr<Animation> Animation::loadFromFile(const std::string &path, + bool cachePolicy) +{ + if (path.empty()) { + vWarning << "File path is empty"; + return nullptr; + } + + auto composition = model::loadFromFile(path, cachePolicy); + if (composition) { + auto animation = std::unique_ptr<Animation>(new Animation); + animation->d->init(std::move(composition)); + return animation; + } + return nullptr; +} + +void Animation::size(size_t &width, size_t &height) const +{ + VSize sz = d->size(); + + width = sz.width(); + height = sz.height(); +} + +double Animation::duration() const +{ + return d->duration(); +} + +double Animation::frameRate() const +{ + return d->frameRate(); +} + +size_t Animation::totalFrame() const +{ + return d->totalFrame(); +} + +size_t Animation::frameAtPos(double pos) +{ + return d->frameAtPos(pos); +} + +const LOTLayerNode *Animation::renderTree(size_t frameNo, size_t width, + size_t height) const +{ + return d->renderTree(frameNo, VSize(int(width), int(height))); +} + +std::future<Surface> Animation::render(size_t frameNo, Surface surface, + bool keepAspectRatio) +{ + return d->renderAsync(frameNo, std::move(surface), keepAspectRatio); +} + +void Animation::renderSync(size_t frameNo, Surface surface, + bool keepAspectRatio) +{ + d->render(frameNo, surface, keepAspectRatio); +} + +const LayerInfoList &Animation::layers() const +{ + return d->layerInfoList(); +} + +const MarkerList &Animation::markers() const +{ + return d->markers(); +} + +void Animation::setValue(Color_Type, Property prop, const std::string &keypath, + Color value) +{ + d->setValue(keypath, + LOTVariant(prop, [value](const FrameInfo &) { return value; })); +} + +void Animation::setValue(Float_Type, Property prop, const std::string &keypath, + float value) +{ + d->setValue(keypath, + LOTVariant(prop, [value](const FrameInfo &) { return value; })); +} + +void Animation::setValue(Size_Type, Property prop, const std::string &keypath, + Size value) +{ + d->setValue(keypath, + LOTVariant(prop, [value](const FrameInfo &) { return value; })); +} + +void Animation::setValue(Point_Type, Property prop, const std::string &keypath, + Point value) +{ + d->setValue(keypath, + LOTVariant(prop, [value](const FrameInfo &) { return value; })); +} + +void Animation::setValue(Color_Type, Property prop, const std::string &keypath, + std::function<Color(const FrameInfo &)> &&value) +{ + d->setValue(keypath, LOTVariant(prop, value)); +} + +void Animation::setValue(Float_Type, Property prop, const std::string &keypath, + std::function<float(const FrameInfo &)> &&value) +{ + d->setValue(keypath, LOTVariant(prop, value)); +} + +void Animation::setValue(Size_Type, Property prop, const std::string &keypath, + std::function<Size(const FrameInfo &)> &&value) +{ + d->setValue(keypath, LOTVariant(prop, value)); +} + +void Animation::setValue(Point_Type, Property prop, const std::string &keypath, + std::function<Point(const FrameInfo &)> &&value) +{ + d->setValue(keypath, LOTVariant(prop, value)); +} + +Animation::~Animation() = default; +Animation::Animation() : d(std::make_unique<AnimationImpl>()) {} + +Surface::Surface(uint32_t *buffer, size_t width, size_t height, + size_t bytesPerLine) + : mBuffer(buffer), + mWidth(width), + mHeight(height), + mBytesPerLine(bytesPerLine) +{ + mDrawArea.w = mWidth; + mDrawArea.h = mHeight; +} + +void Surface::setDrawRegion(size_t x, size_t y, size_t width, size_t height) +{ + if ((x + width > mWidth) || (y + height > mHeight)) return; + + mDrawArea.x = x; + mDrawArea.y = y; + mDrawArea.w = width; + mDrawArea.h = height; +} + +#ifdef LOTTIE_LOGGING_SUPPORT +void initLogging() +{ +#if defined(USE_ARM_NEON) + set_log_level(LogLevel::OFF); +#else + initialize(GuaranteedLogger(), "/tmp/", "rlottie", 1); + set_log_level(LogLevel::INFO); +#endif +} + +V_CONSTRUCTOR_FUNCTION(initLogging) +#endif diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottiefiltermodel.h b/vendor/github.com/Benau/go_rlottie/lottie_lottiefiltermodel.h new file mode 100644 index 00000000..130de590 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottiefiltermodel.h @@ -0,0 +1,435 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef LOTTIEFILTERMODEL_H +#define LOTTIEFILTERMODEL_H + +#include <algorithm> +#include <bitset> +#include <cassert> +#include "lottie_lottiemodel.h" +#include "rlottie.h" + +using namespace rlottie::internal; +// Naive way to implement std::variant +// refactor it when we move to c++17 +// users should make sure proper combination +// of id and value are passed while creating the object. +class LOTVariant { +public: + using ValueFunc = std::function<float(const rlottie::FrameInfo&)>; + using ColorFunc = std::function<rlottie::Color(const rlottie::FrameInfo&)>; + using PointFunc = std::function<rlottie::Point(const rlottie::FrameInfo&)>; + using SizeFunc = std::function<rlottie::Size(const rlottie::FrameInfo&)>; + + LOTVariant(rlottie::Property prop, const ValueFunc& v) + : mPropery(prop), mTag(Value) + { + construct(impl.valueFunc, v); + } + + LOTVariant(rlottie::Property prop, ValueFunc&& v) + : mPropery(prop), mTag(Value) + { + moveConstruct(impl.valueFunc, std::move(v)); + } + + LOTVariant(rlottie::Property prop, const ColorFunc& v) + : mPropery(prop), mTag(Color) + { + construct(impl.colorFunc, v); + } + + LOTVariant(rlottie::Property prop, ColorFunc&& v) + : mPropery(prop), mTag(Color) + { + moveConstruct(impl.colorFunc, std::move(v)); + } + + LOTVariant(rlottie::Property prop, const PointFunc& v) + : mPropery(prop), mTag(Point) + { + construct(impl.pointFunc, v); + } + + LOTVariant(rlottie::Property prop, PointFunc&& v) + : mPropery(prop), mTag(Point) + { + moveConstruct(impl.pointFunc, std::move(v)); + } + + LOTVariant(rlottie::Property prop, const SizeFunc& v) + : mPropery(prop), mTag(Size) + { + construct(impl.sizeFunc, v); + } + + LOTVariant(rlottie::Property prop, SizeFunc&& v) + : mPropery(prop), mTag(Size) + { + moveConstruct(impl.sizeFunc, std::move(v)); + } + + rlottie::Property property() const { return mPropery; } + + const ColorFunc& color() const + { + assert(mTag == Color); + return impl.colorFunc; + } + + const ValueFunc& value() const + { + assert(mTag == Value); + return impl.valueFunc; + } + + const PointFunc& point() const + { + assert(mTag == Point); + return impl.pointFunc; + } + + const SizeFunc& size() const + { + assert(mTag == Size); + return impl.sizeFunc; + } + + LOTVariant() = default; + ~LOTVariant() noexcept { Destroy(); } + LOTVariant(const LOTVariant& other) { Copy(other); } + LOTVariant(LOTVariant&& other) noexcept { Move(std::move(other)); } + LOTVariant& operator=(LOTVariant&& other) + { + Destroy(); + Move(std::move(other)); + return *this; + } + LOTVariant& operator=(const LOTVariant& other) + { + Destroy(); + Copy(other); + return *this; + } + +private: + template <typename T> + void construct(T& member, const T& val) + { + new (&member) T(val); + } + + template <typename T> + void moveConstruct(T& member, T&& val) + { + new (&member) T(std::move(val)); + } + + void Move(LOTVariant&& other) + { + switch (other.mTag) { + case Type::Value: + moveConstruct(impl.valueFunc, std::move(other.impl.valueFunc)); + break; + case Type::Color: + moveConstruct(impl.colorFunc, std::move(other.impl.colorFunc)); + break; + case Type::Point: + moveConstruct(impl.pointFunc, std::move(other.impl.pointFunc)); + break; + case Type::Size: + moveConstruct(impl.sizeFunc, std::move(other.impl.sizeFunc)); + break; + default: + break; + } + mTag = other.mTag; + mPropery = other.mPropery; + other.mTag = MonoState; + } + + void Copy(const LOTVariant& other) + { + switch (other.mTag) { + case Type::Value: + construct(impl.valueFunc, other.impl.valueFunc); + break; + case Type::Color: + construct(impl.colorFunc, other.impl.colorFunc); + break; + case Type::Point: + construct(impl.pointFunc, other.impl.pointFunc); + break; + case Type::Size: + construct(impl.sizeFunc, other.impl.sizeFunc); + break; + default: + break; + } + mTag = other.mTag; + mPropery = other.mPropery; + } + + void Destroy() + { + switch (mTag) { + case MonoState: { + break; + } + case Value: { + impl.valueFunc.~ValueFunc(); + break; + } + case Color: { + impl.colorFunc.~ColorFunc(); + break; + } + case Point: { + impl.pointFunc.~PointFunc(); + break; + } + case Size: { + impl.sizeFunc.~SizeFunc(); + break; + } + } + } + + enum Type { MonoState, Value, Color, Point, Size }; + rlottie::Property mPropery; + Type mTag{MonoState}; + union details { + ColorFunc colorFunc; + ValueFunc valueFunc; + PointFunc pointFunc; + SizeFunc sizeFunc; + details() {} + ~details() noexcept {} + } impl; +}; + +namespace rlottie { + +namespace internal { + +namespace model { + +class FilterData { +public: + void addValue(LOTVariant& value) + { + uint index = static_cast<uint>(value.property()); + if (mBitset.test(index)) { + std::replace_if(mFilters.begin(), mFilters.end(), + [&value](const LOTVariant& e) { + return e.property() == value.property(); + }, + value); + } else { + mBitset.set(index); + mFilters.push_back(value); + } + } + + void removeValue(LOTVariant& value) + { + uint index = static_cast<uint>(value.property()); + if (mBitset.test(index)) { + mBitset.reset(index); + mFilters.erase(std::remove_if(mFilters.begin(), mFilters.end(), + [&value](const LOTVariant& e) { + return e.property() == + value.property(); + }), + mFilters.end()); + } + } + bool hasFilter(rlottie::Property prop) const + { + return mBitset.test(static_cast<uint>(prop)); + } + model::Color color(rlottie::Property prop, int frame) const + { + rlottie::FrameInfo info(frame); + rlottie::Color col = data(prop).color()(info); + return model::Color(col.r(), col.g(), col.b()); + } + VPointF point(rlottie::Property prop, int frame) const + { + rlottie::FrameInfo info(frame); + rlottie::Point pt = data(prop).point()(info); + return VPointF(pt.x(), pt.y()); + } + VSize scale(rlottie::Property prop, int frame) const + { + rlottie::FrameInfo info(frame); + rlottie::Size sz = data(prop).size()(info); + return VSize(sz.w(), sz.h()); + } + float opacity(rlottie::Property prop, int frame) const + { + rlottie::FrameInfo info(frame); + float val = data(prop).value()(info); + return val / 100; + } + float value(rlottie::Property prop, int frame) const + { + rlottie::FrameInfo info(frame); + return data(prop).value()(info); + } + +private: + const LOTVariant& data(rlottie::Property prop) const + { + auto result = std::find_if( + mFilters.begin(), mFilters.end(), + [prop](const LOTVariant& e) { return e.property() == prop; }); + return *result; + } + std::bitset<32> mBitset{0}; + std::vector<LOTVariant> mFilters; +}; + +template <typename T> +struct FilterBase +{ + FilterBase(T *model): model_(model){} + + const char* name() const { return model_->name(); } + + FilterData* filter() { + if (!filterData_) filterData_ = std::make_unique<FilterData>(); + return filterData_.get(); + } + + const FilterData * filter() const { return filterData_.get(); } + const T* model() const { return model_;} + + bool hasFilter(rlottie::Property prop) const { + return filterData_ ? filterData_->hasFilter(prop) + : false; + } + + T* model_{nullptr}; + std::unique_ptr<FilterData> filterData_{nullptr}; +}; + + +template <typename T> +class Filter : public FilterBase<T> { +public: + Filter(T* model): FilterBase<T>(model){} + model::Color color(int frame) const + { + if (this->hasFilter(rlottie::Property::StrokeColor)) { + return this->filter()->color(rlottie::Property::StrokeColor, frame); + } + return this->model()->color(frame); + } + float opacity(int frame) const + { + if (this->hasFilter(rlottie::Property::StrokeOpacity)) { + return this->filter()->opacity(rlottie::Property::StrokeOpacity, frame); + } + return this->model()->opacity(frame); + } + + float strokeWidth(int frame) const + { + if (this->hasFilter(rlottie::Property::StrokeWidth)) { + return this->filter()->value(rlottie::Property::StrokeWidth, frame); + } + return this->model()->strokeWidth(frame); + } + + float miterLimit() const { return this->model()->miterLimit(); } + CapStyle capStyle() const { return this->model()->capStyle(); } + JoinStyle joinStyle() const { return this->model()->joinStyle(); } + bool hasDashInfo() const { return this->model()->hasDashInfo(); } + void getDashInfo(int frameNo, std::vector<float>& result) const + { + return this->model()->getDashInfo(frameNo, result); + } +}; + + +template <> +class Filter<model::Fill>: public FilterBase<model::Fill> +{ +public: + Filter(model::Fill* model) : FilterBase<model::Fill>(model) {} + + model::Color color(int frame) const + { + if (this->hasFilter(rlottie::Property::FillColor)) { + return this->filter()->color(rlottie::Property::FillColor, frame); + } + return this->model()->color(frame); + } + + float opacity(int frame) const + { + if (this->hasFilter(rlottie::Property::FillOpacity)) { + return this->filter()->opacity(rlottie::Property::FillOpacity, frame); + } + return this->model()->opacity(frame); + } + + FillRule fillRule() const { return this->model()->fillRule(); } +}; + +template <> +class Filter<model::Group> : public FilterBase<model::Group> +{ +public: + Filter(model::Group* model = nullptr) : FilterBase<model::Group>(model) {} + + bool hasModel() const { return this->model() ? true : false; } + + model::Transform* transform() const { return this->model() ? this->model()->mTransform : nullptr; } + VMatrix matrix(int frame) const + { + VMatrix mS, mR, mT; + if (this->hasFilter(rlottie::Property::TrScale)) { + VSize s = this->filter()->scale(rlottie::Property::TrScale, frame); + mS.scale(s.width() / 100.0, s.height() / 100.0); + } + if (this->hasFilter(rlottie::Property::TrRotation)) { + mR.rotate(this->filter()->value(rlottie::Property::TrRotation, frame)); + } + if (this->hasFilter(rlottie::Property::TrPosition)) { + mT.translate(this->filter()->point(rlottie::Property::TrPosition, frame)); + } + + return this->model()->mTransform->matrix(frame) * mS * mR * mT; + } +}; + + +} // namespace model + +} // namespace internal + +} // namespace rlottie + +#endif // LOTTIEFILTERMODEL_H diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottieitem.cpp b/vendor/github.com/Benau/go_rlottie/lottie_lottieitem.cpp new file mode 100644 index 00000000..99f80044 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottieitem.cpp @@ -0,0 +1,1491 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "lottie_lottieitem.h" +#include <algorithm> +#include <cmath> +#include <iterator> +#include "lottie_lottiekeypath.h" +#include "vector_vbitmap.h" +#include "vector_vpainter.h" +#include "vector_vraster.h" + +/* Lottie Layer Rules + * 1. time stretch is pre calculated and applied to all the properties of the + * lottilayer model and all its children + * 2. The frame property could be reversed using,time-reverse layer property in + * AE. which means (start frame > endFrame) 3. + */ + +static bool transformProp(rlottie::Property prop) +{ + switch (prop) { + case rlottie::Property::TrAnchor: + case rlottie::Property::TrScale: + case rlottie::Property::TrOpacity: + case rlottie::Property::TrPosition: + case rlottie::Property::TrRotation: + return true; + default: + return false; + } +} +static bool fillProp(rlottie::Property prop) +{ + switch (prop) { + case rlottie::Property::FillColor: + case rlottie::Property::FillOpacity: + return true; + default: + return false; + } +} + +static bool strokeProp(rlottie::Property prop) +{ + switch (prop) { + case rlottie::Property::StrokeColor: + case rlottie::Property::StrokeOpacity: + case rlottie::Property::StrokeWidth: + return true; + default: + return false; + } +} + +static renderer::Layer *createLayerItem(model::Layer *layerData, + VArenaAlloc * allocator) +{ + switch (layerData->mLayerType) { + case model::Layer::Type::Precomp: { + return allocator->make<renderer::CompLayer>(layerData, allocator); + } + case model::Layer::Type::Solid: { + return allocator->make<renderer::SolidLayer>(layerData); + } + case model::Layer::Type::Shape: { + return allocator->make<renderer::ShapeLayer>(layerData, allocator); + } + case model::Layer::Type::Null: { + return allocator->make<renderer::NullLayer>(layerData); + } + case model::Layer::Type::Image: { + return allocator->make<renderer::ImageLayer>(layerData); + } + default: + return nullptr; + break; + } +} + +renderer::Composition::Composition(std::shared_ptr<model::Composition> model) + : mCurFrameNo(-1) +{ + mModel = std::move(model); + mRootLayer = createLayerItem(mModel->mRootLayer, &mAllocator); + mRootLayer->setComplexContent(false); + mViewSize = mModel->size(); +} + +void renderer::Composition::setValue(const std::string &keypath, + LOTVariant & value) +{ + LOTKeyPath key(keypath); + mRootLayer->resolveKeyPath(key, 0, value); +} + +bool renderer::Composition::update(int frameNo, const VSize &size, + bool keepAspectRatio) +{ + // check if cached frame is same as requested frame. + if ((mViewSize == size) && (mCurFrameNo == frameNo) && + (mKeepAspectRatio == keepAspectRatio)) + return false; + + mViewSize = size; + mCurFrameNo = frameNo; + mKeepAspectRatio = keepAspectRatio; + + /* + * if viewbox dosen't scale exactly to the viewport + * we scale the viewbox keeping AspectRatioPreserved and then align the + * viewbox to the viewport using AlignCenter rule. + */ + VMatrix m; + VSize viewPort = mViewSize; + VSize viewBox = mModel->size(); + float sx = float(viewPort.width()) / viewBox.width(); + float sy = float(viewPort.height()) / viewBox.height(); + if (mKeepAspectRatio) { + float scale = std::min(sx, sy); + float tx = (viewPort.width() - viewBox.width() * scale) * 0.5f; + float ty = (viewPort.height() - viewBox.height() * scale) * 0.5f; + m.translate(tx, ty).scale(scale, scale); + } else { + m.scale(sx, sy); + } + mRootLayer->update(frameNo, m, 1.0); + return true; +} + +bool renderer::Composition::render(const rlottie::Surface &surface) +{ + mSurface.reset(reinterpret_cast<uchar *>(surface.buffer()), + uint(surface.width()), uint(surface.height()), + uint(surface.bytesPerLine()), + VBitmap::Format::ARGB32_Premultiplied); + + /* schedule all preprocess task for this frame at once. + */ + VRect clip(0, 0, int(surface.drawRegionWidth()), + int(surface.drawRegionHeight())); + mRootLayer->preprocess(clip); + + VPainter painter(&mSurface); + // set sub surface area for drawing. + painter.setDrawRegion( + VRect(int(surface.drawRegionPosX()), int(surface.drawRegionPosY()), + int(surface.drawRegionWidth()), int(surface.drawRegionHeight()))); + mRootLayer->render(&painter, {}, {}, mSurfaceCache); + painter.end(); + return true; +} + +void renderer::Mask::update(int frameNo, const VMatrix &parentMatrix, + float /*parentAlpha*/, const DirtyFlag &flag) +{ + bool dirtyPath = false; + + if (flag.testFlag(DirtyFlagBit::None) && mData->isStatic()) return; + + if (mData->mShape.isStatic()) { + if (mLocalPath.empty()) { + dirtyPath = true; + mData->mShape.value(frameNo, mLocalPath); + } + } else { + dirtyPath = true; + mData->mShape.value(frameNo, mLocalPath); + } + /* mask item dosen't inherit opacity */ + mCombinedAlpha = mData->opacity(frameNo); + + if ( flag.testFlag(DirtyFlagBit::Matrix) || dirtyPath ) { + mFinalPath.clone(mLocalPath); + mFinalPath.transform(parentMatrix); + mRasterRequest = true; + } +} + +VRle renderer::Mask::rle() +{ + if (!vCompare(mCombinedAlpha, 1.0f)) { + VRle obj = mRasterizer.rle(); + obj *= uchar(mCombinedAlpha * 255); + return obj; + } else { + return mRasterizer.rle(); + } +} + +void renderer::Mask::preprocess(const VRect &clip) +{ + if (mRasterRequest) + mRasterizer.rasterize(mFinalPath, FillRule::Winding, clip); +} + +void renderer::Layer::render(VPainter *painter, const VRle &inheritMask, + const VRle &matteRle, SurfaceCache &) +{ + auto renderlist = renderList(); + + if (renderlist.empty()) return; + + VRle mask; + if (mLayerMask) { + mask = mLayerMask->maskRle(painter->clipBoundingRect()); + if (!inheritMask.empty()) mask = mask & inheritMask; + // if resulting mask is empty then return. + if (mask.empty()) return; + } else { + mask = inheritMask; + } + + for (auto &i : renderlist) { + painter->setBrush(i->mBrush); + VRle rle = i->rle(); + if (matteRle.empty()) { + if (mask.empty()) { + // no mask no matte + painter->drawRle(VPoint(), rle); + } else { + // only mask + painter->drawRle(rle, mask); + } + + } else { + if (!mask.empty()) rle = rle & mask; + + if (rle.empty()) continue; + if (matteType() == model::MatteType::AlphaInv) { + rle = rle - matteRle; + painter->drawRle(VPoint(), rle); + } else { + // render with matteRle as clip. + painter->drawRle(rle, matteRle); + } + } + } +} + +void renderer::LayerMask::preprocess(const VRect &clip) +{ + for (auto &i : mMasks) { + i.preprocess(clip); + } +} + +renderer::LayerMask::LayerMask(model::Layer *layerData) +{ + if (!layerData->mExtra) return; + + mMasks.reserve(layerData->mExtra->mMasks.size()); + + for (auto &i : layerData->mExtra->mMasks) { + mMasks.emplace_back(i); + mStatic &= i->isStatic(); + } +} + +void renderer::LayerMask::update(int frameNo, const VMatrix &parentMatrix, + float parentAlpha, const DirtyFlag &flag) +{ + if (flag.testFlag(DirtyFlagBit::None) && isStatic()) return; + + for (auto &i : mMasks) { + i.update(frameNo, parentMatrix, parentAlpha, flag); + } + mDirty = true; +} + +VRle renderer::LayerMask::maskRle(const VRect &clipRect) +{ + if (!mDirty) return mRle; + + VRle rle; + for (auto &e : mMasks) { + const auto cur = [&]() { + if (e.inverted()) + return clipRect - e.rle(); + else + return e.rle(); + }(); + + switch (e.maskMode()) { + case model::Mask::Mode::Add: { + rle = rle + cur; + break; + } + case model::Mask::Mode::Substarct: { + if (rle.empty() && !clipRect.empty()) + rle = clipRect - cur; + else + rle = rle - cur; + break; + } + case model::Mask::Mode::Intersect: { + if (rle.empty() && !clipRect.empty()) + rle = clipRect & cur; + else + rle = rle & cur; + break; + } + case model::Mask::Mode::Difference: { + rle = rle ^ cur; + break; + } + default: + break; + } + } + + if (!rle.empty() && !rle.unique()) { + mRle.clone(rle); + } else { + mRle = rle; + } + mDirty = false; + return mRle; +} + +renderer::Layer::Layer(model::Layer *layerData) : mLayerData(layerData) +{ + if (mLayerData->mHasMask) + mLayerMask = std::make_unique<renderer::LayerMask>(mLayerData); +} + +bool renderer::Layer::resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) +{ + if (!keyPath.matches(name(), depth)) { + return false; + } + + if (!keyPath.skip(name())) { + if (keyPath.fullyResolvesTo(name(), depth) && + transformProp(value.property())) { + //@TODO handle propery update. + } + } + return true; +} + +bool renderer::ShapeLayer::resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) +{ + if (renderer::Layer::resolveKeyPath(keyPath, depth, value)) { + if (keyPath.propagate(name(), depth)) { + uint newDepth = keyPath.nextDepth(name(), depth); + mRoot->resolveKeyPath(keyPath, newDepth, value); + } + return true; + } + return false; +} + +bool renderer::CompLayer::resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) +{ + if (renderer::Layer::resolveKeyPath(keyPath, depth, value)) { + if (keyPath.propagate(name(), depth)) { + uint newDepth = keyPath.nextDepth(name(), depth); + for (const auto &layer : mLayers) { + layer->resolveKeyPath(keyPath, newDepth, value); + } + } + return true; + } + return false; +} + +void renderer::Layer::update(int frameNumber, const VMatrix &parentMatrix, + float parentAlpha) +{ + mFrameNo = frameNumber; + // 1. check if the layer is part of the current frame + if (!visible()) return; + + float alpha = parentAlpha * opacity(frameNo()); + if (vIsZero(alpha)) { + mCombinedAlpha = 0; + return; + } + + // 2. calculate the parent matrix and alpha + VMatrix m = matrix(frameNo()); + m *= parentMatrix; + + // 3. update the dirty flag based on the change + if (mCombinedMatrix != m) { + mDirtyFlag |= DirtyFlagBit::Matrix; + mCombinedMatrix = m; + } + + if (!vCompare(mCombinedAlpha, alpha)) { + mDirtyFlag |= DirtyFlagBit::Alpha; + mCombinedAlpha = alpha; + } + + // 4. update the mask + if (mLayerMask) { + mLayerMask->update(frameNo(), mCombinedMatrix, mCombinedAlpha, + mDirtyFlag); + } + + // 5. if no parent property change and layer is static then nothing to do. + if (!mLayerData->precompLayer() && flag().testFlag(DirtyFlagBit::None) && + isStatic()) + return; + + // 6. update the content of the layer + updateContent(); + + // 7. reset the dirty flag + mDirtyFlag = DirtyFlagBit::None; +} + +VMatrix renderer::Layer::matrix(int frameNo) const +{ + return mParentLayer + ? (mLayerData->matrix(frameNo) * mParentLayer->matrix(frameNo)) + : mLayerData->matrix(frameNo); +} + +bool renderer::Layer::visible() const +{ + return (frameNo() >= mLayerData->inFrame() && + frameNo() < mLayerData->outFrame()); +} + +void renderer::Layer::preprocess(const VRect &clip) +{ + // layer dosen't contribute to the frame + if (skipRendering()) return; + + // preprocess layer masks + if (mLayerMask) mLayerMask->preprocess(clip); + + preprocessStage(clip); +} + +renderer::CompLayer::CompLayer(model::Layer *layerModel, VArenaAlloc *allocator) + : renderer::Layer(layerModel) +{ + if (!mLayerData->mChildren.empty()) + mLayers.reserve(mLayerData->mChildren.size()); + + // 1. keep the layer in back-to-front order. + // as lottie model keeps the data in front-toback-order. + for (auto it = mLayerData->mChildren.crbegin(); + it != mLayerData->mChildren.rend(); ++it) { + auto model = static_cast<model::Layer *>(*it); + auto item = createLayerItem(model, allocator); + if (item) mLayers.push_back(item); + } + + // 2. update parent layer + for (const auto &layer : mLayers) { + int id = layer->parentId(); + if (id >= 0) { + auto search = + std::find_if(mLayers.begin(), mLayers.end(), + [id](const auto &val) { return val->id() == id; }); + if (search != mLayers.end()) layer->setParentLayer(*search); + } + } + + // 4. check if its a nested composition + if (!layerModel->layerSize().empty()) { + mClipper = std::make_unique<renderer::Clipper>(layerModel->layerSize()); + } + + if (mLayers.size() > 1) setComplexContent(true); +} + +void renderer::CompLayer::render(VPainter *painter, const VRle &inheritMask, + const VRle &matteRle, SurfaceCache &cache) +{ + if (vIsZero(combinedAlpha())) return; + + if (vCompare(combinedAlpha(), 1.0)) { + renderHelper(painter, inheritMask, matteRle, cache); + } else { + if (complexContent()) { + VSize size = painter->clipBoundingRect().size(); + VPainter srcPainter; + VBitmap srcBitmap = cache.make_surface(size.width(), size.height()); + srcPainter.begin(&srcBitmap); + renderHelper(&srcPainter, inheritMask, matteRle, cache); + srcPainter.end(); + painter->drawBitmap(VPoint(), srcBitmap, + uchar(combinedAlpha() * 255.0f)); + cache.release_surface(srcBitmap); + } else { + renderHelper(painter, inheritMask, matteRle, cache); + } + } +} + +void renderer::CompLayer::renderHelper(VPainter * painter, + const VRle & inheritMask, + const VRle & matteRle, + SurfaceCache &cache) +{ + VRle mask; + if (mLayerMask) { + mask = mLayerMask->maskRle(painter->clipBoundingRect()); + if (!inheritMask.empty()) mask = mask & inheritMask; + // if resulting mask is empty then return. + if (mask.empty()) return; + } else { + mask = inheritMask; + } + + if (mClipper) { + mask = mClipper->rle(mask); + if (mask.empty()) return; + } + + renderer::Layer *matte = nullptr; + for (const auto &layer : mLayers) { + if (layer->hasMatte()) { + matte = layer; + } else { + if (layer->visible()) { + if (matte) { + if (matte->visible()) + renderMatteLayer(painter, mask, matteRle, matte, layer, + cache); + } else { + layer->render(painter, mask, matteRle, cache); + } + } + matte = nullptr; + } + } +} + +void renderer::CompLayer::renderMatteLayer(VPainter *painter, const VRle &mask, + const VRle & matteRle, + renderer::Layer *layer, + renderer::Layer *src, + SurfaceCache & cache) +{ + VSize size = painter->clipBoundingRect().size(); + // Decide if we can use fast matte. + // 1. draw src layer to matte buffer + VPainter srcPainter; + VBitmap srcBitmap = cache.make_surface(size.width(), size.height()); + srcPainter.begin(&srcBitmap); + src->render(&srcPainter, mask, matteRle, cache); + srcPainter.end(); + + // 2. draw layer to layer buffer + VPainter layerPainter; + VBitmap layerBitmap = cache.make_surface(size.width(), size.height()); + layerPainter.begin(&layerBitmap); + layer->render(&layerPainter, mask, matteRle, cache); + + // 2.1update composition mode + switch (layer->matteType()) { + case model::MatteType::Alpha: + case model::MatteType::Luma: { + layerPainter.setBlendMode(BlendMode::DestIn); + break; + } + case model::MatteType::AlphaInv: + case model::MatteType::LumaInv: { + layerPainter.setBlendMode(BlendMode::DestOut); + break; + } + default: + break; + } + + // 2.2 update srcBuffer if the matte is luma type + if (layer->matteType() == model::MatteType::Luma || + layer->matteType() == model::MatteType::LumaInv) { + srcBitmap.updateLuma(); + } + + auto clip = layerPainter.clipBoundingRect(); + + // if the layer has only one renderer then use it as the clip rect + // when blending 2 buffer and copy back to final buffer to avoid + // unnecessary pixel processing. + if (layer->renderList().size() == 1) + { + clip = layer->renderList()[0]->rle().boundingRect(); + } + + // 2.3 draw src buffer as mask + layerPainter.drawBitmap(clip, srcBitmap, clip); + layerPainter.end(); + // 3. draw the result buffer into painter + painter->drawBitmap(clip, layerBitmap, clip); + + cache.release_surface(srcBitmap); + cache.release_surface(layerBitmap); +} + +void renderer::Clipper::update(const VMatrix &matrix) +{ + mPath.reset(); + mPath.addRect(VRectF(0, 0, mSize.width(), mSize.height())); + mPath.transform(matrix); + mRasterRequest = true; +} + +void renderer::Clipper::preprocess(const VRect &clip) +{ + if (mRasterRequest) mRasterizer.rasterize(mPath, FillRule::Winding, clip); + + mRasterRequest = false; +} + +VRle renderer::Clipper::rle(const VRle &mask) +{ + if (mask.empty()) return mRasterizer.rle(); + + mMaskedRle.clone(mask); + mMaskedRle &= mRasterizer.rle(); + return mMaskedRle; +} + +void renderer::CompLayer::updateContent() +{ + if (mClipper && flag().testFlag(DirtyFlagBit::Matrix)) { + mClipper->update(combinedMatrix()); + } + int mappedFrame = mLayerData->timeRemap(frameNo()); + float alpha = combinedAlpha(); + if (complexContent()) alpha = 1; + for (const auto &layer : mLayers) { + layer->update(mappedFrame, combinedMatrix(), alpha); + } +} + +void renderer::CompLayer::preprocessStage(const VRect &clip) +{ + // if layer has clipper + if (mClipper) mClipper->preprocess(clip); + + renderer::Layer *matte = nullptr; + for (const auto &layer : mLayers) { + if (layer->hasMatte()) { + matte = layer; + } else { + if (layer->visible()) { + if (matte) { + if (matte->visible()) { + layer->preprocess(clip); + matte->preprocess(clip); + } + } else { + layer->preprocess(clip); + } + } + matte = nullptr; + } + } +} + +renderer::SolidLayer::SolidLayer(model::Layer *layerData) + : renderer::Layer(layerData) +{ + mDrawableList = &mRenderNode; +} + +void renderer::SolidLayer::updateContent() +{ + if (flag() & DirtyFlagBit::Matrix) { + mPath.reset(); + mPath.addRect(VRectF(0, 0, mLayerData->layerSize().width(), + mLayerData->layerSize().height())); + mPath.transform(combinedMatrix()); + mRenderNode.mFlag |= VDrawable::DirtyState::Path; + mRenderNode.mPath = mPath; + } + if (flag() & DirtyFlagBit::Alpha) { + model::Color color = mLayerData->solidColor(); + VBrush brush(color.toColor(combinedAlpha())); + mRenderNode.setBrush(brush); + mRenderNode.mFlag |= VDrawable::DirtyState::Brush; + } +} + +void renderer::SolidLayer::preprocessStage(const VRect &clip) +{ + mRenderNode.preprocess(clip); +} + +renderer::DrawableList renderer::SolidLayer::renderList() +{ + if (skipRendering()) return {}; + + return {&mDrawableList, 1}; +} + +renderer::ImageLayer::ImageLayer(model::Layer *layerData) + : renderer::Layer(layerData) +{ + mDrawableList = &mRenderNode; + + if (!mLayerData->asset()) return; + + mTexture.mBitmap = mLayerData->asset()->bitmap(); + VBrush brush(&mTexture); + mRenderNode.setBrush(brush); +} + +void renderer::ImageLayer::updateContent() +{ + if (!mLayerData->asset()) return; + + if (flag() & DirtyFlagBit::Matrix) { + mPath.reset(); + mPath.addRect(VRectF(0, 0, mLayerData->asset()->mWidth, + mLayerData->asset()->mHeight)); + mPath.transform(combinedMatrix()); + mRenderNode.mFlag |= VDrawable::DirtyState::Path; + mRenderNode.mPath = mPath; + mTexture.mMatrix = combinedMatrix(); + } + + if (flag() & DirtyFlagBit::Alpha) { + mTexture.mAlpha = int(combinedAlpha() * 255); + } +} + +void renderer::ImageLayer::preprocessStage(const VRect &clip) +{ + mRenderNode.preprocess(clip); +} + +renderer::DrawableList renderer::ImageLayer::renderList() +{ + if (skipRendering()) return {}; + + return {&mDrawableList, 1}; +} + +renderer::NullLayer::NullLayer(model::Layer *layerData) + : renderer::Layer(layerData) +{ +} +void renderer::NullLayer::updateContent() {} + +static renderer::Object *createContentItem(model::Object *contentData, + VArenaAlloc * allocator) +{ + switch (contentData->type()) { + case model::Object::Type::Group: { + return allocator->make<renderer::Group>( + static_cast<model::Group *>(contentData), allocator); + } + case model::Object::Type::Rect: { + return allocator->make<renderer::Rect>( + static_cast<model::Rect *>(contentData)); + } + case model::Object::Type::Ellipse: { + return allocator->make<renderer::Ellipse>( + static_cast<model::Ellipse *>(contentData)); + } + case model::Object::Type::Path: { + return allocator->make<renderer::Path>( + static_cast<model::Path *>(contentData)); + } + case model::Object::Type::Polystar: { + return allocator->make<renderer::Polystar>( + static_cast<model::Polystar *>(contentData)); + } + case model::Object::Type::Fill: { + return allocator->make<renderer::Fill>( + static_cast<model::Fill *>(contentData)); + } + case model::Object::Type::GFill: { + return allocator->make<renderer::GradientFill>( + static_cast<model::GradientFill *>(contentData)); + } + case model::Object::Type::Stroke: { + return allocator->make<renderer::Stroke>( + static_cast<model::Stroke *>(contentData)); + } + case model::Object::Type::GStroke: { + return allocator->make<renderer::GradientStroke>( + static_cast<model::GradientStroke *>(contentData)); + } + case model::Object::Type::Repeater: { + return allocator->make<renderer::Repeater>( + static_cast<model::Repeater *>(contentData), allocator); + } + case model::Object::Type::Trim: { + return allocator->make<renderer::Trim>( + static_cast<model::Trim *>(contentData)); + } + default: + return nullptr; + break; + } +} + +renderer::ShapeLayer::ShapeLayer(model::Layer *layerData, + VArenaAlloc * allocator) + : renderer::Layer(layerData), + mRoot(allocator->make<renderer::Group>(nullptr, allocator)) +{ + mRoot->addChildren(layerData, allocator); + + std::vector<renderer::Shape *> list; + mRoot->processPaintItems(list); + + if (layerData->hasPathOperator()) { + list.clear(); + mRoot->processTrimItems(list); + } +} + +void renderer::ShapeLayer::updateContent() +{ + mRoot->update(frameNo(), combinedMatrix(), combinedAlpha(), flag()); + + if (mLayerData->hasPathOperator()) { + mRoot->applyTrim(); + } +} + +void renderer::ShapeLayer::preprocessStage(const VRect &clip) +{ + mDrawableList.clear(); + mRoot->renderList(mDrawableList); + + for (auto &drawable : mDrawableList) drawable->preprocess(clip); +} + +renderer::DrawableList renderer::ShapeLayer::renderList() +{ + if (skipRendering()) return {}; + + mDrawableList.clear(); + mRoot->renderList(mDrawableList); + + if (mDrawableList.empty()) return {}; + + return {mDrawableList.data(), mDrawableList.size()}; +} + +bool renderer::Group::resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) +{ + if (!keyPath.skip(name())) { + if (!keyPath.matches(mModel.name(), depth)) { + return false; + } + + if (!keyPath.skip(mModel.name())) { + if (keyPath.fullyResolvesTo(mModel.name(), depth) && + transformProp(value.property())) { + mModel.filter()->addValue(value); + } + } + } + + if (keyPath.propagate(name(), depth)) { + uint newDepth = keyPath.nextDepth(name(), depth); + for (auto &child : mContents) { + child->resolveKeyPath(keyPath, newDepth, value); + } + } + return true; +} + +bool renderer::Fill::resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) +{ + if (!keyPath.matches(mModel.name(), depth)) { + return false; + } + + if (keyPath.fullyResolvesTo(mModel.name(), depth) && + fillProp(value.property())) { + mModel.filter()->addValue(value); + return true; + } + return false; +} + +bool renderer::Stroke::resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) +{ + if (!keyPath.matches(mModel.name(), depth)) { + return false; + } + + if (keyPath.fullyResolvesTo(mModel.name(), depth) && + strokeProp(value.property())) { + mModel.filter()->addValue(value); + return true; + } + return false; +} + +renderer::Group::Group(model::Group *data, VArenaAlloc *allocator) + : mModel(data) +{ + addChildren(data, allocator); +} + +void renderer::Group::addChildren(model::Group *data, VArenaAlloc *allocator) +{ + if (!data) return; + + if (!data->mChildren.empty()) mContents.reserve(data->mChildren.size()); + + // keep the content in back-to-front order. + // as lottie model keeps it in front-to-back order. + for (auto it = data->mChildren.crbegin(); it != data->mChildren.rend(); + ++it) { + auto content = createContentItem(*it, allocator); + if (content) { + mContents.push_back(content); + } + } +} + +void renderer::Group::update(int frameNo, const VMatrix &parentMatrix, + float parentAlpha, const DirtyFlag &flag) +{ + DirtyFlag newFlag = flag; + float alpha; + + if (mModel.hasModel() && mModel.transform()) { + VMatrix m = mModel.matrix(frameNo); + + m *= parentMatrix; + if (!(flag & DirtyFlagBit::Matrix) && !mModel.transform()->isStatic() && + (m != mMatrix)) { + newFlag |= DirtyFlagBit::Matrix; + } + + mMatrix = m; + + alpha = parentAlpha * mModel.transform()->opacity(frameNo); + if (!vCompare(alpha, parentAlpha)) { + newFlag |= DirtyFlagBit::Alpha; + } + } else { + mMatrix = parentMatrix; + alpha = parentAlpha; + } + + for (const auto &content : mContents) { + content->update(frameNo, matrix(), alpha, newFlag); + } +} + +void renderer::Group::applyTrim() +{ + for (auto i = mContents.rbegin(); i != mContents.rend(); ++i) { + auto content = (*i); + switch (content->type()) { + case renderer::Object::Type::Trim: { + static_cast<renderer::Trim *>(content)->update(); + break; + } + case renderer::Object::Type::Group: { + static_cast<renderer::Group *>(content)->applyTrim(); + break; + } + default: + break; + } + } +} + +void renderer::Group::renderList(std::vector<VDrawable *> &list) +{ + for (const auto &content : mContents) { + content->renderList(list); + } +} + +void renderer::Group::processPaintItems(std::vector<renderer::Shape *> &list) +{ + size_t curOpCount = list.size(); + for (auto i = mContents.rbegin(); i != mContents.rend(); ++i) { + auto content = (*i); + switch (content->type()) { + case renderer::Object::Type::Shape: { + auto pathItem = static_cast<renderer::Shape *>(content); + pathItem->setParent(this); + list.push_back(pathItem); + break; + } + case renderer::Object::Type::Paint: { + static_cast<renderer::Paint *>(content)->addPathItems(list, + curOpCount); + break; + } + case renderer::Object::Type::Group: { + static_cast<renderer::Group *>(content)->processPaintItems(list); + break; + } + default: + break; + } + } +} + +void renderer::Group::processTrimItems(std::vector<renderer::Shape *> &list) +{ + size_t curOpCount = list.size(); + for (auto i = mContents.rbegin(); i != mContents.rend(); ++i) { + auto content = (*i); + + switch (content->type()) { + case renderer::Object::Type::Shape: { + list.push_back(static_cast<renderer::Shape *>(content)); + break; + } + case renderer::Object::Type::Trim: { + static_cast<renderer::Trim *>(content)->addPathItems(list, + curOpCount); + break; + } + case renderer::Object::Type::Group: { + static_cast<renderer::Group *>(content)->processTrimItems(list); + break; + } + default: + break; + } + } +} + +/* + * renderer::Shape uses 2 path objects for path object reuse. + * mLocalPath - keeps track of the local path of the item before + * applying path operation and transformation. + * mTemp - keeps a referece to the mLocalPath and can be updated by the + * path operation objects(trim, merge path), + * We update the DirtyPath flag if the path needs to be updated again + * beacuse of local path or matrix or some path operation has changed which + * affects the final path. + * The PaintObject queries the dirty flag to check if it needs to compute the + * final path again and calls finalPath() api to do the same. + * finalPath() api passes a result Object so that we keep only one copy of + * the path object in the paintItem (for memory efficiency). + * NOTE: As path objects are COW objects we have to be + * carefull about the refcount so that we don't generate deep copy while + * modifying the path objects. + */ +void renderer::Shape::update(int frameNo, const VMatrix &, float, + const DirtyFlag &flag) +{ + mDirtyPath = false; + + // 1. update the local path if needed + if (hasChanged(frameNo)) { + // loose the reference to mLocalPath if any + // from the last frame update. + mTemp = VPath(); + + updatePath(mLocalPath, frameNo); + mDirtyPath = true; + } + // 2. keep a reference path in temp in case there is some + // path operation like trim which will update the path. + // we don't want to update the local path. + mTemp = mLocalPath; + + // 3. mark the path dirty if matrix has changed. + if (flag & DirtyFlagBit::Matrix) { + mDirtyPath = true; + } +} + +void renderer::Shape::finalPath(VPath &result) +{ + result.addPath(mTemp, static_cast<renderer::Group *>(parent())->matrix()); +} + +renderer::Rect::Rect(model::Rect *data) + : renderer::Shape(data->isStatic()), mData(data) +{ +} + +void renderer::Rect::updatePath(VPath &path, int frameNo) +{ + VPointF pos = mData->mPos.value(frameNo); + VPointF size = mData->mSize.value(frameNo); + float roundness = mData->roundness(frameNo); + VRectF r(pos.x() - size.x() / 2, pos.y() - size.y() / 2, size.x(), + size.y()); + + path.reset(); + path.addRoundRect(r, roundness, mData->direction()); +} + +renderer::Ellipse::Ellipse(model::Ellipse *data) + : renderer::Shape(data->isStatic()), mData(data) +{ +} + +void renderer::Ellipse::updatePath(VPath &path, int frameNo) +{ + VPointF pos = mData->mPos.value(frameNo); + VPointF size = mData->mSize.value(frameNo); + VRectF r(pos.x() - size.x() / 2, pos.y() - size.y() / 2, size.x(), + size.y()); + + path.reset(); + path.addOval(r, mData->direction()); +} + +renderer::Path::Path(model::Path *data) + : renderer::Shape(data->isStatic()), mData(data) +{ +} + +void renderer::Path::updatePath(VPath &path, int frameNo) +{ + mData->mShape.value(frameNo, path); +} + +renderer::Polystar::Polystar(model::Polystar *data) + : renderer::Shape(data->isStatic()), mData(data) +{ +} + +void renderer::Polystar::updatePath(VPath &path, int frameNo) +{ + VPointF pos = mData->mPos.value(frameNo); + float points = mData->mPointCount.value(frameNo); + float innerRadius = mData->mInnerRadius.value(frameNo); + float outerRadius = mData->mOuterRadius.value(frameNo); + float innerRoundness = mData->mInnerRoundness.value(frameNo); + float outerRoundness = mData->mOuterRoundness.value(frameNo); + float rotation = mData->mRotation.value(frameNo); + + path.reset(); + VMatrix m; + + if (mData->mPolyType == model::Polystar::PolyType::Star) { + path.addPolystar(points, innerRadius, outerRadius, innerRoundness, + outerRoundness, 0.0, 0.0, 0.0, mData->direction()); + } else { + path.addPolygon(points, outerRadius, outerRoundness, 0.0, 0.0, 0.0, + mData->direction()); + } + + m.translate(pos.x(), pos.y()).rotate(rotation); + m.rotate(rotation); + path.transform(m); +} + +/* + * PaintData Node handling + * + */ +renderer::Paint::Paint(bool staticContent) : mStaticContent(staticContent) {} + +void renderer::Paint::update(int frameNo, const VMatrix &parentMatrix, + float parentAlpha, const DirtyFlag & /*flag*/) +{ + mRenderNodeUpdate = true; + mContentToRender = updateContent(frameNo, parentMatrix, parentAlpha); +} + +void renderer::Paint::updateRenderNode() +{ + bool dirty = false; + for (auto &i : mPathItems) { + if (i->dirty()) { + dirty = true; + break; + } + } + + if (dirty) { + mPath.reset(); + for (const auto &i : mPathItems) { + i->finalPath(mPath); + } + mDrawable.setPath(mPath); + } else { + if (mDrawable.mFlag & VDrawable::DirtyState::Path) + mDrawable.mPath = mPath; + } +} + +void renderer::Paint::renderList(std::vector<VDrawable *> &list) +{ + if (mRenderNodeUpdate) { + updateRenderNode(); + mRenderNodeUpdate = false; + } + + // Q: Why we even update the final path if we don't have content + // to render ? + // Ans: We update the render nodes because we will loose the + // dirty path information at end of this frame. + // so if we return early without updating the final path. + // in the subsequent frame when we have content to render but + // we may not able to update our final path properly as we + // don't know what paths got changed in between. + if (mContentToRender) list.push_back(&mDrawable); +} + +void renderer::Paint::addPathItems(std::vector<renderer::Shape *> &list, + size_t startOffset) +{ + std::copy(list.begin() + startOffset, list.end(), + back_inserter(mPathItems)); +} + +renderer::Fill::Fill(model::Fill *data) + : renderer::Paint(data->isStatic()), mModel(data) +{ + mDrawable.setName(mModel.name()); +} + +bool renderer::Fill::updateContent(int frameNo, const VMatrix &, float alpha) +{ + auto combinedAlpha = alpha * mModel.opacity(frameNo); + auto color = mModel.color(frameNo).toColor(combinedAlpha); + + VBrush brush(color); + mDrawable.setBrush(brush); + mDrawable.setFillRule(mModel.fillRule()); + + return !color.isTransparent(); +} + +renderer::GradientFill::GradientFill(model::GradientFill *data) + : renderer::Paint(data->isStatic()), mData(data) +{ + mDrawable.setName(mData->name()); +} + +bool renderer::GradientFill::updateContent(int frameNo, const VMatrix &matrix, + float alpha) +{ + float combinedAlpha = alpha * mData->opacity(frameNo); + + mData->update(mGradient, frameNo); + mGradient->setAlpha(combinedAlpha); + mGradient->mMatrix = matrix; + mDrawable.setBrush(VBrush(mGradient.get())); + mDrawable.setFillRule(mData->fillRule()); + + return !vIsZero(combinedAlpha); +} + +renderer::Stroke::Stroke(model::Stroke *data) + : renderer::Paint(data->isStatic()), mModel(data) +{ + mDrawable.setName(mModel.name()); + if (mModel.hasDashInfo()) { + mDrawable.setType(VDrawable::Type::StrokeWithDash); + } else { + mDrawable.setType(VDrawable::Type::Stroke); + } +} + +static vthread_local std::vector<float> Dash_Vector; + +bool renderer::Stroke::updateContent(int frameNo, const VMatrix &matrix, + float alpha) +{ + auto combinedAlpha = alpha * mModel.opacity(frameNo); + auto color = mModel.color(frameNo).toColor(combinedAlpha); + + VBrush brush(color); + mDrawable.setBrush(brush); + float scale = matrix.scale(); + mDrawable.setStrokeInfo(mModel.capStyle(), mModel.joinStyle(), + mModel.miterLimit(), + mModel.strokeWidth(frameNo) * scale); + + if (mModel.hasDashInfo()) { + Dash_Vector.clear(); + mModel.getDashInfo(frameNo, Dash_Vector); + if (!Dash_Vector.empty()) { + for (auto &elm : Dash_Vector) elm *= scale; + mDrawable.setDashInfo(Dash_Vector); + } + } + + return !color.isTransparent(); +} + +renderer::GradientStroke::GradientStroke(model::GradientStroke *data) + : renderer::Paint(data->isStatic()), mData(data) +{ + mDrawable.setName(mData->name()); + if (mData->hasDashInfo()) { + mDrawable.setType(VDrawable::Type::StrokeWithDash); + } else { + mDrawable.setType(VDrawable::Type::Stroke); + } +} + +bool renderer::GradientStroke::updateContent(int frameNo, const VMatrix &matrix, + float alpha) +{ + float combinedAlpha = alpha * mData->opacity(frameNo); + + mData->update(mGradient, frameNo); + mGradient->setAlpha(combinedAlpha); + mGradient->mMatrix = matrix; + auto scale = mGradient->mMatrix.scale(); + mDrawable.setBrush(VBrush(mGradient.get())); + mDrawable.setStrokeInfo(mData->capStyle(), mData->joinStyle(), + mData->miterLimit(), mData->width(frameNo) * scale); + + if (mData->hasDashInfo()) { + Dash_Vector.clear(); + mData->getDashInfo(frameNo, Dash_Vector); + if (!Dash_Vector.empty()) { + for (auto &elm : Dash_Vector) elm *= scale; + mDrawable.setDashInfo(Dash_Vector); + } + } + + return !vIsZero(combinedAlpha); +} + +void renderer::Trim::update(int frameNo, const VMatrix & /*parentMatrix*/, + float /*parentAlpha*/, const DirtyFlag & /*flag*/) +{ + mDirty = false; + + if (mCache.mFrameNo == frameNo) return; + + model::Trim::Segment segment = mData->segment(frameNo); + + if (!(vCompare(mCache.mSegment.start, segment.start) && + vCompare(mCache.mSegment.end, segment.end))) { + mDirty = true; + mCache.mSegment = segment; + } + mCache.mFrameNo = frameNo; +} + +void renderer::Trim::update() +{ + // when both path and trim are not dirty + if (!(mDirty || pathDirty())) return; + + if (vCompare(mCache.mSegment.start, mCache.mSegment.end)) { + for (auto &i : mPathItems) { + i->updatePath(VPath()); + } + return; + } + + if (vCompare(std::fabs(mCache.mSegment.start - mCache.mSegment.end), 1)) { + for (auto &i : mPathItems) { + i->updatePath(i->localPath()); + } + return; + } + + if (mData->type() == model::Trim::TrimType::Simultaneously) { + for (auto &i : mPathItems) { + mPathMesure.setRange(mCache.mSegment.start, mCache.mSegment.end); + i->updatePath(mPathMesure.trim(i->localPath())); + } + } else { // model::Trim::TrimType::Individually + float totalLength = 0.0; + for (auto &i : mPathItems) { + totalLength += i->localPath().length(); + } + float start = totalLength * mCache.mSegment.start; + float end = totalLength * mCache.mSegment.end; + + if (start < end) { + float curLen = 0.0; + for (auto &i : mPathItems) { + if (curLen > end) { + // update with empty path. + i->updatePath(VPath()); + continue; + } + float len = i->localPath().length(); + + if (curLen < start && curLen + len < start) { + curLen += len; + // update with empty path. + i->updatePath(VPath()); + continue; + } else if (start <= curLen && end >= curLen + len) { + // inside segment + curLen += len; + continue; + } else { + float local_start = start > curLen ? start - curLen : 0; + local_start /= len; + float local_end = curLen + len < end ? len : end - curLen; + local_end /= len; + mPathMesure.setRange(local_start, local_end); + i->updatePath(mPathMesure.trim(i->localPath())); + curLen += len; + } + } + } + } +} + +void renderer::Trim::addPathItems(std::vector<renderer::Shape *> &list, + size_t startOffset) +{ + std::copy(list.begin() + startOffset, list.end(), + back_inserter(mPathItems)); +} + +renderer::Repeater::Repeater(model::Repeater *data, VArenaAlloc *allocator) + : mRepeaterData(data) +{ + assert(mRepeaterData->content()); + + mCopies = mRepeaterData->maxCopies(); + + for (int i = 0; i < mCopies; i++) { + auto content = allocator->make<renderer::Group>( + mRepeaterData->content(), allocator); + // content->setParent(this); + mContents.push_back(content); + } +} + +void renderer::Repeater::update(int frameNo, const VMatrix &parentMatrix, + float parentAlpha, const DirtyFlag &flag) +{ + DirtyFlag newFlag = flag; + + float copies = mRepeaterData->copies(frameNo); + int visibleCopies = int(copies); + + if (visibleCopies == 0) { + mHidden = true; + return; + } + + mHidden = false; + + if (!mRepeaterData->isStatic()) newFlag |= DirtyFlagBit::Matrix; + + float offset = mRepeaterData->offset(frameNo); + float startOpacity = mRepeaterData->mTransform.startOpacity(frameNo); + float endOpacity = mRepeaterData->mTransform.endOpacity(frameNo); + + newFlag |= DirtyFlagBit::Alpha; + + for (int i = 0; i < mCopies; ++i) { + float newAlpha = + parentAlpha * lerp(startOpacity, endOpacity, i / copies); + + // hide rest of the copies , @TODO find a better solution. + if (i >= visibleCopies) newAlpha = 0; + + VMatrix result = mRepeaterData->mTransform.matrix(frameNo, i + offset) * + parentMatrix; + mContents[i]->update(frameNo, result, newAlpha, newFlag); + } +} + +void renderer::Repeater::renderList(std::vector<VDrawable *> &list) +{ + if (mHidden) return; + return renderer::Group::renderList(list); +} diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottieitem.h b/vendor/github.com/Benau/go_rlottie/lottie_lottieitem.h new file mode 100644 index 00000000..e1276113 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottieitem.h @@ -0,0 +1,626 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef LOTTIEITEM_H +#define LOTTIEITEM_H + +#include <memory> +#include <sstream> + +#include "lottie_lottiekeypath.h" +#include "lottie_lottiefiltermodel.h" +#include "rlottie.h" +#include "rlottiecommon.h" +#include "vector_varenaalloc.h" +#include "vector_vdrawable.h" +#include "vector_vmatrix.h" +#include "vector_vpainter.h" +#include "vector_vpath.h" +#include "vector_vpathmesure.h" +#include "vector_vpoint.h" + +V_USE_NAMESPACE + +namespace rlottie { + +namespace internal { + +template <class T> +class VSpan { +public: + using reference = T &; + using pointer = T *; + using const_pointer = T const *; + using const_reference = T const &; + using index_type = size_t; + + using iterator = pointer; + using const_iterator = const_pointer; + + VSpan() = default; + VSpan(pointer data, index_type size) : _data(data), _size(size) {} + + constexpr pointer data() const noexcept { return _data; } + constexpr index_type size() const noexcept { return _size; } + constexpr bool empty() const noexcept { return size() == 0; } + constexpr iterator begin() const noexcept { return data(); } + constexpr iterator end() const noexcept { return data() + size(); } + constexpr const_iterator cbegin() const noexcept { return data(); } + constexpr const_iterator cend() const noexcept { return data() + size(); } + constexpr reference operator[](index_type idx) const + { + return *(data() + idx); + } + +private: + pointer _data{nullptr}; + index_type _size{0}; +}; + +namespace renderer { + +using DrawableList = VSpan<VDrawable *>; + +enum class DirtyFlagBit : uchar { + None = 0x00, + Matrix = 0x01, + Alpha = 0x02, + All = (Matrix | Alpha) +}; +typedef vFlag<DirtyFlagBit> DirtyFlag; + +class SurfaceCache { +public: + SurfaceCache() { mCache.reserve(10); } + + VBitmap make_surface( + size_t width, size_t height, + VBitmap::Format format = VBitmap::Format::ARGB32_Premultiplied) + { + if (mCache.empty()) return {width, height, format}; + + auto surface = mCache.back(); + surface.reset(width, height, format); + + mCache.pop_back(); + return surface; + } + + void release_surface(VBitmap &surface) { mCache.push_back(surface); } + +private: + std::vector<VBitmap> mCache; +}; + +class Drawable final : public VDrawable { +public: + void sync(); + +public: + std::unique_ptr<LOTNode> mCNode{nullptr}; + + ~Drawable() noexcept + { + if (mCNode && mCNode->mGradient.stopPtr) + free(mCNode->mGradient.stopPtr); + } +}; + +struct CApiData { + CApiData(); + LOTLayerNode mLayer; + std::vector<LOTMask> mMasks; + std::vector<LOTLayerNode *> mLayers; + std::vector<LOTNode *> mCNodeList; +}; + +class Clipper { +public: + explicit Clipper(VSize size) : mSize(size) {} + void update(const VMatrix &matrix); + void preprocess(const VRect &clip); + VRle rle(const VRle &mask); + +public: + VSize mSize; + VPath mPath; + VRle mMaskedRle; + VRasterizer mRasterizer; + bool mRasterRequest{false}; +}; + +class Mask { +public: + explicit Mask(model::Mask *data) : mData(data) {} + void update(int frameNo, const VMatrix &parentMatrix, float parentAlpha, + const DirtyFlag &flag); + model::Mask::Mode maskMode() const { return mData->mMode; } + VRle rle(); + void preprocess(const VRect &clip); + bool inverted() const { return mData->mInv; } +public: + model::Mask *mData{nullptr}; + VPath mLocalPath; + VPath mFinalPath; + VRasterizer mRasterizer; + float mCombinedAlpha{0}; + bool mRasterRequest{false}; +}; + +/* + * Handels mask property of a layer item + */ +class LayerMask { +public: + explicit LayerMask(model::Layer *layerData); + void update(int frameNo, const VMatrix &parentMatrix, float parentAlpha, + const DirtyFlag &flag); + bool isStatic() const { return mStatic; } + VRle maskRle(const VRect &clipRect); + void preprocess(const VRect &clip); + +public: + std::vector<Mask> mMasks; + VRle mRle; + bool mStatic{true}; + bool mDirty{true}; +}; + +class Layer; + +class Composition { +public: + explicit Composition(std::shared_ptr<model::Composition> composition); + bool update(int frameNo, const VSize &size, bool keepAspectRatio); + VSize size() const { return mViewSize; } + void buildRenderTree(); + const LOTLayerNode *renderTree() const; + bool render(const rlottie::Surface &surface); + void setValue(const std::string &keypath, LOTVariant &value); + +private: + SurfaceCache mSurfaceCache; + VBitmap mSurface; + VMatrix mScaleMatrix; + VSize mViewSize; + std::shared_ptr<model::Composition> mModel; + Layer * mRootLayer{nullptr}; + VArenaAlloc mAllocator{2048}; + int mCurFrameNo; + bool mKeepAspectRatio{true}; +}; + +class Layer { +public: + virtual ~Layer() = default; + Layer &operator=(Layer &&) noexcept = delete; + Layer(model::Layer *layerData); + int id() const { return mLayerData->id(); } + int parentId() const { return mLayerData->parentId(); } + void setParentLayer(Layer *parent) { mParentLayer = parent; } + void setComplexContent(bool value) { mComplexContent = value; } + bool complexContent() const { return mComplexContent; } + virtual void update(int frameNo, const VMatrix &parentMatrix, + float parentAlpha); + VMatrix matrix(int frameNo) const; + void preprocess(const VRect &clip); + virtual DrawableList renderList() { return {}; } + virtual void render(VPainter *painter, const VRle &mask, + const VRle &matteRle, SurfaceCache &cache); + bool hasMatte() + { + if (mLayerData->mMatteType == model::MatteType::None) return false; + return true; + } + model::MatteType matteType() const { return mLayerData->mMatteType; } + bool visible() const; + virtual void buildLayerNode(); + LOTLayerNode & clayer() { return mCApiData->mLayer; } + std::vector<LOTLayerNode *> &clayers() { return mCApiData->mLayers; } + std::vector<LOTMask> & cmasks() { return mCApiData->mMasks; } + std::vector<LOTNode *> & cnodes() { return mCApiData->mCNodeList; } + const char * name() const { return mLayerData->name(); } + virtual bool resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value); + +protected: + virtual void preprocessStage(const VRect &clip) = 0; + virtual void updateContent() = 0; + inline VMatrix combinedMatrix() const { return mCombinedMatrix; } + inline int frameNo() const { return mFrameNo; } + inline float combinedAlpha() const { return mCombinedAlpha; } + inline bool isStatic() const { return mLayerData->isStatic(); } + float opacity(int frameNo) const { return mLayerData->opacity(frameNo); } + inline DirtyFlag flag() const { return mDirtyFlag; } + bool skipRendering() const + { + return (!visible() || vIsZero(combinedAlpha())); + } + +protected: + std::unique_ptr<LayerMask> mLayerMask; + model::Layer * mLayerData{nullptr}; + Layer * mParentLayer{nullptr}; + VMatrix mCombinedMatrix; + float mCombinedAlpha{0.0}; + int mFrameNo{-1}; + DirtyFlag mDirtyFlag{DirtyFlagBit::All}; + bool mComplexContent{false}; + std::unique_ptr<CApiData> mCApiData; +}; + +class CompLayer final : public Layer { +public: + explicit CompLayer(model::Layer *layerData, VArenaAlloc *allocator); + + void render(VPainter *painter, const VRle &mask, const VRle &matteRle, + SurfaceCache &cache) final; + void buildLayerNode() final; + bool resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) override; + +protected: + void preprocessStage(const VRect &clip) final; + void updateContent() final; + +private: + void renderHelper(VPainter *painter, const VRle &mask, const VRle &matteRle, + SurfaceCache &cache); + void renderMatteLayer(VPainter *painter, const VRle &inheritMask, + const VRle &matteRle, Layer *layer, Layer *src, + SurfaceCache &cache); + +private: + std::vector<Layer *> mLayers; + std::unique_ptr<Clipper> mClipper; +}; + +class SolidLayer final : public Layer { +public: + explicit SolidLayer(model::Layer *layerData); + void buildLayerNode() final; + DrawableList renderList() final; + +protected: + void preprocessStage(const VRect &clip) final; + void updateContent() final; + +private: + Drawable mRenderNode; + VPath mPath; + VDrawable *mDrawableList{nullptr}; // to work with the Span api +}; + +class Group; + +class ShapeLayer final : public Layer { +public: + explicit ShapeLayer(model::Layer *layerData, VArenaAlloc *allocator); + DrawableList renderList() final; + void buildLayerNode() final; + bool resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) override; + +protected: + void preprocessStage(const VRect &clip) final; + void updateContent() final; + std::vector<VDrawable *> mDrawableList; + Group * mRoot{nullptr}; +}; + +class NullLayer final : public Layer { +public: + explicit NullLayer(model::Layer *layerData); + +protected: + void preprocessStage(const VRect &) final {} + void updateContent() final; +}; + +class ImageLayer final : public Layer { +public: + explicit ImageLayer(model::Layer *layerData); + void buildLayerNode() final; + DrawableList renderList() final; + +protected: + void preprocessStage(const VRect &clip) final; + void updateContent() final; + +private: + Drawable mRenderNode; + VTexture mTexture; + VPath mPath; + VDrawable *mDrawableList{nullptr}; // to work with the Span api +}; + +class Object { +public: + enum class Type : uchar { Unknown, Group, Shape, Paint, Trim }; + virtual ~Object() = default; + Object & operator=(Object &&) noexcept = delete; + virtual void update(int frameNo, const VMatrix &parentMatrix, + float parentAlpha, const DirtyFlag &flag) = 0; + virtual void renderList(std::vector<VDrawable *> &) {} + virtual bool resolveKeyPath(LOTKeyPath &, uint, LOTVariant &) + { + return false; + } + virtual Object::Type type() const { return Object::Type::Unknown; } +}; + +class Shape; +class Group : public Object { +public: + Group() = default; + explicit Group(model::Group *data, VArenaAlloc *allocator); + void addChildren(model::Group *data, VArenaAlloc *allocator); + void update(int frameNo, const VMatrix &parentMatrix, float parentAlpha, + const DirtyFlag &flag) override; + void applyTrim(); + void processTrimItems(std::vector<Shape *> &list); + void processPaintItems(std::vector<Shape *> &list); + void renderList(std::vector<VDrawable *> &list) override; + Object::Type type() const final { return Object::Type::Group; } + const VMatrix &matrix() const { return mMatrix; } + const char * name() const + { + static const char *TAG = "__"; + return mModel.hasModel() ? mModel.name() : TAG; + } + bool resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) override; + +protected: + std::vector<Object *> mContents; + VMatrix mMatrix; + +private: + model::Filter<model::Group> mModel; +}; + +class Shape : public Object { +public: + Shape(bool staticPath) : mStaticPath(staticPath) {} + void update(int frameNo, const VMatrix &parentMatrix, float parentAlpha, + const DirtyFlag &flag) final; + Object::Type type() const final { return Object::Type::Shape; } + bool dirty() const { return mDirtyPath; } + const VPath &localPath() const { return mTemp; } + void finalPath(VPath &result); + void updatePath(const VPath &path) + { + mTemp = path; + mDirtyPath = true; + } + bool staticPath() const { return mStaticPath; } + void setParent(Group *parent) { mParent = parent; } + Group *parent() const { return mParent; } + +protected: + virtual void updatePath(VPath &path, int frameNo) = 0; + virtual bool hasChanged(int prevFrame, int curFrame) = 0; + +private: + bool hasChanged(int frameNo) + { + int prevFrame = mFrameNo; + mFrameNo = frameNo; + if (prevFrame == -1) return true; + if (mStaticPath || (prevFrame == frameNo)) return false; + return hasChanged(prevFrame, frameNo); + } + Group *mParent{nullptr}; + VPath mLocalPath; + VPath mTemp; + int mFrameNo{-1}; + bool mDirtyPath{true}; + bool mStaticPath; +}; + +class Rect final : public Shape { +public: + explicit Rect(model::Rect *data); + +protected: + void updatePath(VPath &path, int frameNo) final; + model::Rect *mData{nullptr}; + + bool hasChanged(int prevFrame, int curFrame) final + { + return (mData->mPos.changed(prevFrame, curFrame) || + mData->mSize.changed(prevFrame, curFrame) || + mData->roundnessChanged(prevFrame, curFrame)); + } +}; + +class Ellipse final : public Shape { +public: + explicit Ellipse(model::Ellipse *data); + +private: + void updatePath(VPath &path, int frameNo) final; + model::Ellipse *mData{nullptr}; + bool hasChanged(int prevFrame, int curFrame) final + { + return (mData->mPos.changed(prevFrame, curFrame) || + mData->mSize.changed(prevFrame, curFrame)); + } +}; + +class Path final : public Shape { +public: + explicit Path(model::Path *data); + +private: + void updatePath(VPath &path, int frameNo) final; + model::Path *mData{nullptr}; + bool hasChanged(int prevFrame, int curFrame) final + { + return mData->mShape.changed(prevFrame, curFrame); + } +}; + +class Polystar final : public Shape { +public: + explicit Polystar(model::Polystar *data); + +private: + void updatePath(VPath &path, int frameNo) final; + model::Polystar *mData{nullptr}; + + bool hasChanged(int prevFrame, int curFrame) final + { + return (mData->mPos.changed(prevFrame, curFrame) || + mData->mPointCount.changed(prevFrame, curFrame) || + mData->mInnerRadius.changed(prevFrame, curFrame) || + mData->mOuterRadius.changed(prevFrame, curFrame) || + mData->mInnerRoundness.changed(prevFrame, curFrame) || + mData->mOuterRoundness.changed(prevFrame, curFrame) || + mData->mRotation.changed(prevFrame, curFrame)); + } +}; + +class Paint : public Object { +public: + Paint(bool staticContent); + void addPathItems(std::vector<Shape *> &list, size_t startOffset); + void update(int frameNo, const VMatrix &parentMatrix, float parentAlpha, + const DirtyFlag &flag) override; + void renderList(std::vector<VDrawable *> &list) final; + Object::Type type() const final { return Object::Type::Paint; } + +protected: + virtual bool updateContent(int frameNo, const VMatrix &matrix, + float alpha) = 0; + +private: + void updateRenderNode(); + +protected: + std::vector<Shape *> mPathItems; + Drawable mDrawable; + VPath mPath; + DirtyFlag mFlag; + bool mStaticContent; + bool mRenderNodeUpdate{true}; + bool mContentToRender{true}; +}; + +class Fill final : public Paint { +public: + explicit Fill(model::Fill *data); + +protected: + bool updateContent(int frameNo, const VMatrix &matrix, float alpha) final; + bool resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) final; + +private: + model::Filter<model::Fill> mModel; +}; + +class GradientFill final : public Paint { +public: + explicit GradientFill(model::GradientFill *data); + +protected: + bool updateContent(int frameNo, const VMatrix &matrix, float alpha) final; + +private: + model::GradientFill * mData{nullptr}; + std::unique_ptr<VGradient> mGradient; +}; + +class Stroke : public Paint { +public: + explicit Stroke(model::Stroke *data); + +protected: + bool updateContent(int frameNo, const VMatrix &matrix, float alpha) final; + bool resolveKeyPath(LOTKeyPath &keyPath, uint depth, + LOTVariant &value) final; + +private: + model::Filter<model::Stroke> mModel; +}; + +class GradientStroke final : public Paint { +public: + explicit GradientStroke(model::GradientStroke *data); + +protected: + bool updateContent(int frameNo, const VMatrix &matrix, float alpha) final; + +private: + model::GradientStroke * mData{nullptr}; + std::unique_ptr<VGradient> mGradient; +}; + +class Trim final : public Object { +public: + explicit Trim(model::Trim *data) : mData(data) {} + void update(int frameNo, const VMatrix &parentMatrix, float parentAlpha, + const DirtyFlag &flag) final; + Object::Type type() const final { return Object::Type::Trim; } + void update(); + void addPathItems(std::vector<Shape *> &list, size_t startOffset); + +private: + bool pathDirty() const + { + for (auto &i : mPathItems) { + if (i->dirty()) return true; + } + return false; + } + struct Cache { + int mFrameNo{-1}; + model::Trim::Segment mSegment{}; + }; + Cache mCache; + std::vector<Shape *> mPathItems; + model::Trim * mData{nullptr}; + VPathMesure mPathMesure; + bool mDirty{true}; +}; + +class Repeater final : public Group { +public: + explicit Repeater(model::Repeater *data, VArenaAlloc *allocator); + void update(int frameNo, const VMatrix &parentMatrix, float parentAlpha, + const DirtyFlag &flag) final; + void renderList(std::vector<VDrawable *> &list) final; + +private: + model::Repeater *mRepeaterData{nullptr}; + bool mHidden{false}; + int mCopies{0}; +}; + +} // namespace renderer + +} // namespace internal + +} // namespace rlottie + +#endif // LOTTIEITEM_H diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottieitem_capi.cpp b/vendor/github.com/Benau/go_rlottie/lottie_lottieitem_capi.cpp new file mode 100644 index 00000000..8ab8f842 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottieitem_capi.cpp @@ -0,0 +1,339 @@ +/* + * Implements LottieItem functions needed + * to support renderTree() api. + * Moving all those implementation to its own + * file make clear separation as well easy of + * maintenance. + */ + +#include "lottie_lottieitem.h" +#include "vector_vdasher.h" + +using namespace rlottie::internal; + +renderer::CApiData::CApiData() +{ + mLayer.mMaskList.ptr = nullptr; + mLayer.mMaskList.size = 0; + mLayer.mLayerList.ptr = nullptr; + mLayer.mLayerList.size = 0; + mLayer.mNodeList.ptr = nullptr; + mLayer.mNodeList.size = 0; + mLayer.mMatte = MatteNone; + mLayer.mVisible = 0; + mLayer.mAlpha = 255; + mLayer.mClipPath.ptPtr = nullptr; + mLayer.mClipPath.elmPtr = nullptr; + mLayer.mClipPath.ptCount = 0; + mLayer.mClipPath.elmCount = 0; + mLayer.keypath = nullptr; +} + +void renderer::Composition::buildRenderTree() +{ + mRootLayer->buildLayerNode(); +} + +const LOTLayerNode *renderer::Composition::renderTree() const +{ + return &mRootLayer->clayer(); +} + +void renderer::CompLayer::buildLayerNode() +{ + renderer::Layer::buildLayerNode(); + if (mClipper) { + const auto &elm = mClipper->mPath.elements(); + const auto &pts = mClipper->mPath.points(); + auto ptPtr = reinterpret_cast<const float *>(pts.data()); + auto elmPtr = reinterpret_cast<const char *>(elm.data()); + clayer().mClipPath.ptPtr = ptPtr; + clayer().mClipPath.elmPtr = elmPtr; + clayer().mClipPath.ptCount = 2 * pts.size(); + clayer().mClipPath.elmCount = elm.size(); + } + if (mLayers.size() != clayers().size()) { + for (const auto &layer : mLayers) { + layer->buildLayerNode(); + clayers().push_back(&layer->clayer()); + } + clayer().mLayerList.ptr = clayers().data(); + clayer().mLayerList.size = clayers().size(); + } else { + for (const auto &layer : mLayers) { + layer->buildLayerNode(); + } + } +} + +void renderer::ShapeLayer::buildLayerNode() +{ + renderer::Layer::buildLayerNode(); + + auto renderlist = renderList(); + + cnodes().clear(); + for (auto &i : renderlist) { + auto lotDrawable = static_cast<renderer::Drawable *>(i); + lotDrawable->sync(); + cnodes().push_back(lotDrawable->mCNode.get()); + } + clayer().mNodeList.ptr = cnodes().data(); + clayer().mNodeList.size = cnodes().size(); +} + +void renderer::Layer::buildLayerNode() +{ + if (!mCApiData) { + mCApiData = std::make_unique<renderer::CApiData>(); + clayer().keypath = name(); + } + if (complexContent()) clayer().mAlpha = uchar(combinedAlpha() * 255.f); + clayer().mVisible = visible(); + // update matte + if (hasMatte()) { + switch (mLayerData->mMatteType) { + case model::MatteType::Alpha: + clayer().mMatte = MatteAlpha; + break; + case model::MatteType::AlphaInv: + clayer().mMatte = MatteAlphaInv; + break; + case model::MatteType::Luma: + clayer().mMatte = MatteLuma; + break; + case model::MatteType::LumaInv: + clayer().mMatte = MatteLumaInv; + break; + default: + clayer().mMatte = MatteNone; + break; + } + } + if (mLayerMask) { + cmasks().clear(); + cmasks().resize(mLayerMask->mMasks.size()); + size_t i = 0; + for (const auto &mask : mLayerMask->mMasks) { + auto & cNode = cmasks()[i++]; + const auto &elm = mask.mFinalPath.elements(); + const auto &pts = mask.mFinalPath.points(); + auto ptPtr = reinterpret_cast<const float *>(pts.data()); + auto elmPtr = reinterpret_cast<const char *>(elm.data()); + cNode.mPath.ptPtr = ptPtr; + cNode.mPath.ptCount = 2 * pts.size(); + cNode.mPath.elmPtr = elmPtr; + cNode.mPath.elmCount = elm.size(); + cNode.mAlpha = uchar(mask.mCombinedAlpha * 255.0f); + switch (mask.maskMode()) { + case model::Mask::Mode::Add: + cNode.mMode = MaskAdd; + break; + case model::Mask::Mode::Substarct: + cNode.mMode = MaskSubstract; + break; + case model::Mask::Mode::Intersect: + cNode.mMode = MaskIntersect; + break; + case model::Mask::Mode::Difference: + cNode.mMode = MaskDifference; + break; + default: + cNode.mMode = MaskAdd; + break; + } + } + clayer().mMaskList.ptr = cmasks().data(); + clayer().mMaskList.size = cmasks().size(); + } +} + +void renderer::SolidLayer::buildLayerNode() +{ + renderer::Layer::buildLayerNode(); + + auto renderlist = renderList(); + + cnodes().clear(); + for (auto &i : renderlist) { + auto lotDrawable = static_cast<renderer::Drawable *>(i); + lotDrawable->sync(); + cnodes().push_back(lotDrawable->mCNode.get()); + } + clayer().mNodeList.ptr = cnodes().data(); + clayer().mNodeList.size = cnodes().size(); +} + +void renderer::ImageLayer::buildLayerNode() +{ + renderer::Layer::buildLayerNode(); + + auto renderlist = renderList(); + + cnodes().clear(); + for (auto &i : renderlist) { + auto lotDrawable = static_cast<renderer::Drawable *>(i); + lotDrawable->sync(); + + lotDrawable->mCNode->mImageInfo.data = + lotDrawable->mBrush.mTexture->mBitmap.data(); + lotDrawable->mCNode->mImageInfo.width = + int(lotDrawable->mBrush.mTexture->mBitmap.width()); + lotDrawable->mCNode->mImageInfo.height = + int(lotDrawable->mBrush.mTexture->mBitmap.height()); + + lotDrawable->mCNode->mImageInfo.mMatrix.m11 = combinedMatrix().m_11(); + lotDrawable->mCNode->mImageInfo.mMatrix.m12 = combinedMatrix().m_12(); + lotDrawable->mCNode->mImageInfo.mMatrix.m13 = combinedMatrix().m_13(); + + lotDrawable->mCNode->mImageInfo.mMatrix.m21 = combinedMatrix().m_21(); + lotDrawable->mCNode->mImageInfo.mMatrix.m22 = combinedMatrix().m_22(); + lotDrawable->mCNode->mImageInfo.mMatrix.m23 = combinedMatrix().m_23(); + + lotDrawable->mCNode->mImageInfo.mMatrix.m31 = combinedMatrix().m_tx(); + lotDrawable->mCNode->mImageInfo.mMatrix.m32 = combinedMatrix().m_ty(); + lotDrawable->mCNode->mImageInfo.mMatrix.m33 = combinedMatrix().m_33(); + + // Alpha calculation already combined. + lotDrawable->mCNode->mImageInfo.mAlpha = + uchar(lotDrawable->mBrush.mTexture->mAlpha); + + cnodes().push_back(lotDrawable->mCNode.get()); + } + clayer().mNodeList.ptr = cnodes().data(); + clayer().mNodeList.size = cnodes().size(); +} + +static void updateGStops(LOTNode *n, const VGradient *grad) +{ + if (grad->mStops.size() != n->mGradient.stopCount) { + if (n->mGradient.stopCount) free(n->mGradient.stopPtr); + n->mGradient.stopCount = grad->mStops.size(); + n->mGradient.stopPtr = (LOTGradientStop *)malloc( + n->mGradient.stopCount * sizeof(LOTGradientStop)); + } + + LOTGradientStop *ptr = n->mGradient.stopPtr; + for (const auto &i : grad->mStops) { + ptr->pos = i.first; + ptr->a = uchar(i.second.alpha() * grad->alpha()); + ptr->r = i.second.red(); + ptr->g = i.second.green(); + ptr->b = i.second.blue(); + ptr++; + } +} + +void renderer::Drawable::sync() +{ + if (!mCNode) { + mCNode = std::make_unique<LOTNode>(); + mCNode->mGradient.stopPtr = nullptr; + mCNode->mGradient.stopCount = 0; + } + + mCNode->mFlag = ChangeFlagNone; + if (mFlag & DirtyState::None) return; + + if (mFlag & DirtyState::Path) { + applyDashOp(); + const std::vector<VPath::Element> &elm = mPath.elements(); + const std::vector<VPointF> & pts = mPath.points(); + const float *ptPtr = reinterpret_cast<const float *>(pts.data()); + const char * elmPtr = reinterpret_cast<const char *>(elm.data()); + mCNode->mPath.elmPtr = elmPtr; + mCNode->mPath.elmCount = elm.size(); + mCNode->mPath.ptPtr = ptPtr; + mCNode->mPath.ptCount = 2 * pts.size(); + mCNode->mFlag |= ChangeFlagPath; + mCNode->keypath = name(); + } + + if (mStrokeInfo) { + mCNode->mStroke.width = mStrokeInfo->width; + mCNode->mStroke.miterLimit = mStrokeInfo->miterLimit; + mCNode->mStroke.enable = 1; + + switch (mStrokeInfo->cap) { + case CapStyle::Flat: + mCNode->mStroke.cap = LOTCapStyle::CapFlat; + break; + case CapStyle::Square: + mCNode->mStroke.cap = LOTCapStyle::CapSquare; + break; + case CapStyle::Round: + mCNode->mStroke.cap = LOTCapStyle::CapRound; + break; + } + + switch (mStrokeInfo->join) { + case JoinStyle::Miter: + mCNode->mStroke.join = LOTJoinStyle::JoinMiter; + break; + case JoinStyle::Bevel: + mCNode->mStroke.join = LOTJoinStyle::JoinBevel; + break; + case JoinStyle::Round: + mCNode->mStroke.join = LOTJoinStyle::JoinRound; + break; + default: + mCNode->mStroke.join = LOTJoinStyle::JoinMiter; + break; + } + } else { + mCNode->mStroke.enable = 0; + } + + switch (mFillRule) { + case FillRule::EvenOdd: + mCNode->mFillRule = LOTFillRule::FillEvenOdd; + break; + default: + mCNode->mFillRule = LOTFillRule::FillWinding; + break; + } + + switch (mBrush.type()) { + case VBrush::Type::Solid: + mCNode->mBrushType = LOTBrushType::BrushSolid; + mCNode->mColor.r = mBrush.mColor.r; + mCNode->mColor.g = mBrush.mColor.g; + mCNode->mColor.b = mBrush.mColor.b; + mCNode->mColor.a = mBrush.mColor.a; + break; + case VBrush::Type::LinearGradient: { + mCNode->mBrushType = LOTBrushType::BrushGradient; + mCNode->mGradient.type = LOTGradientType::GradientLinear; + VPointF s = mBrush.mGradient->mMatrix.map( + {mBrush.mGradient->linear.x1, mBrush.mGradient->linear.y1}); + VPointF e = mBrush.mGradient->mMatrix.map( + {mBrush.mGradient->linear.x2, mBrush.mGradient->linear.y2}); + mCNode->mGradient.start.x = s.x(); + mCNode->mGradient.start.y = s.y(); + mCNode->mGradient.end.x = e.x(); + mCNode->mGradient.end.y = e.y(); + updateGStops(mCNode.get(), mBrush.mGradient); + break; + } + case VBrush::Type::RadialGradient: { + mCNode->mBrushType = LOTBrushType::BrushGradient; + mCNode->mGradient.type = LOTGradientType::GradientRadial; + VPointF c = mBrush.mGradient->mMatrix.map( + {mBrush.mGradient->radial.cx, mBrush.mGradient->radial.cy}); + VPointF f = mBrush.mGradient->mMatrix.map( + {mBrush.mGradient->radial.fx, mBrush.mGradient->radial.fy}); + mCNode->mGradient.center.x = c.x(); + mCNode->mGradient.center.y = c.y(); + mCNode->mGradient.focal.x = f.x(); + mCNode->mGradient.focal.y = f.y(); + + float scale = mBrush.mGradient->mMatrix.scale(); + mCNode->mGradient.cradius = mBrush.mGradient->radial.cradius * scale; + mCNode->mGradient.fradius = mBrush.mGradient->radial.fradius * scale; + updateGStops(mCNode.get(), mBrush.mGradient); + break; + } + default: + break; + } +} diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottiekeypath.cpp b/vendor/github.com/Benau/go_rlottie/lottie_lottiekeypath.cpp new file mode 100644 index 00000000..4fd090e9 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottiekeypath.cpp @@ -0,0 +1,86 @@ +#include "lottie_lottiekeypath.h" + +#include <sstream> + +LOTKeyPath::LOTKeyPath(const std::string &keyPath) +{ + std::stringstream ss(keyPath); + std::string item; + + while (getline(ss, item, '.')) { + mKeys.push_back(item); + } +} + +bool LOTKeyPath::matches(const std::string &key, uint depth) +{ + if (skip(key)) { + // This is an object we programatically create. + return true; + } + if (depth > size()) { + return false; + } + if ((mKeys[depth] == key) || (mKeys[depth] == "*") || + (mKeys[depth] == "**")) { + return true; + } + return false; +} + +uint LOTKeyPath::nextDepth(const std::string key, uint depth) +{ + if (skip(key)) { + // If it's a container then we added programatically and it isn't a part + // of the keypath. + return depth; + } + if (mKeys[depth] != "**") { + // If it's not a globstar then it is part of the keypath. + return depth + 1; + } + if (depth == size()) { + // The last key is a globstar. + return depth; + } + if (mKeys[depth + 1] == key) { + // We are a globstar and the next key is our current key so consume + // both. + return depth + 2; + } + return depth; +} + +bool LOTKeyPath::fullyResolvesTo(const std::string key, uint depth) +{ + if (depth > mKeys.size()) { + return false; + } + + bool isLastDepth = (depth == size()); + + if (!isGlobstar(depth)) { + bool matches = (mKeys[depth] == key) || isGlob(depth); + return (isLastDepth || (depth == size() - 1 && endsWithGlobstar())) && + matches; + } + + bool isGlobstarButNextKeyMatches = !isLastDepth && mKeys[depth + 1] == key; + if (isGlobstarButNextKeyMatches) { + return depth == size() - 1 || + (depth == size() - 2 && endsWithGlobstar()); + } + + if (isLastDepth) { + return true; + } + + if (depth + 1 < size()) { + // We are a globstar but there is more than 1 key after the globstar we + // we can't fully match. + return false; + } + // Return whether the next key (which we now know is the last one) is the + // same as the current key. + return mKeys[depth + 1] == key; +} diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottiekeypath.h b/vendor/github.com/Benau/go_rlottie/lottie_lottiekeypath.h new file mode 100644 index 00000000..c2fd8511 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottiekeypath.h @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef LOTTIEKEYPATH_H +#define LOTTIEKEYPATH_H + +#include <string> +#include <vector> +#include "vector_vglobal.h" + +class LOTKeyPath { +public: + LOTKeyPath(const std::string &keyPath); + bool matches(const std::string &key, uint depth); + uint nextDepth(const std::string key, uint depth); + bool fullyResolvesTo(const std::string key, uint depth); + + bool propagate(const std::string key, uint depth) + { + return skip(key) ? true : (depth < size()) || (mKeys[depth] == "**"); + } + bool skip(const std::string &key) const { return key == "__"; } + +private: + bool isGlobstar(uint depth) const { return mKeys[depth] == "**"; } + bool isGlob(uint depth) const { return mKeys[depth] == "*"; } + bool endsWithGlobstar() const { return mKeys.back() == "**"; } + size_t size() const { return mKeys.size() - 1; } + +private: + std::vector<std::string> mKeys; +}; + +#endif // LOTTIEKEYPATH_H diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottieloader.cpp b/vendor/github.com/Benau/go_rlottie/lottie_lottieloader.cpp new file mode 100644 index 00000000..cfcd8f84 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottieloader.cpp @@ -0,0 +1,169 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <cstring> +#include <fstream> +#include <sstream> + +#include "lottie_lottiemodel.h" + +using namespace rlottie::internal; + +#ifdef LOTTIE_CACHE_SUPPORT + +#include <mutex> +#include <unordered_map> + +class ModelCache { +public: + static ModelCache &instance() + { + static ModelCache singleton; + return singleton; + } + std::shared_ptr<model::Composition> find(const std::string &key) + { + std::lock_guard<std::mutex> guard(mMutex); + + if (!mcacheSize) return nullptr; + + auto search = mHash.find(key); + + return (search != mHash.end()) ? search->second : nullptr; + } + void add(const std::string &key, std::shared_ptr<model::Composition> value) + { + std::lock_guard<std::mutex> guard(mMutex); + + if (!mcacheSize) return; + + //@TODO just remove the 1st element + // not the best of LRU logic + if (mcacheSize == mHash.size()) mHash.erase(mHash.cbegin()); + + mHash[key] = std::move(value); + } + + void configureCacheSize(size_t cacheSize) + { + std::lock_guard<std::mutex> guard(mMutex); + mcacheSize = cacheSize; + + if (!mcacheSize) mHash.clear(); + } + +private: + ModelCache() = default; + + std::unordered_map<std::string, std::shared_ptr<model::Composition>> mHash; + std::mutex mMutex; + size_t mcacheSize{10}; +}; + +#else + +class ModelCache { +public: + static ModelCache &instance() + { + static ModelCache singleton; + return singleton; + } + std::shared_ptr<model::Composition> find(const std::string &) + { + return nullptr; + } + void add(const std::string &, std::shared_ptr<model::Composition>) {} + void configureCacheSize(size_t) {} +}; + +#endif + +static std::string dirname(const std::string &path) +{ + const char *ptr = strrchr(path.c_str(), '/'); +#ifdef _WIN32 + if (ptr) ptr = strrchr(ptr + 1, '\\'); +#endif + int len = int(ptr + 1 - path.c_str()); // +1 to include '/' + return std::string(path, 0, len); +} + +void model::configureModelCacheSize(size_t cacheSize) +{ + ModelCache::instance().configureCacheSize(cacheSize); +} + +std::shared_ptr<model::Composition> model::loadFromFile(const std::string &path, + bool cachePolicy) +{ + if (cachePolicy) { + auto obj = ModelCache::instance().find(path); + if (obj) return obj; + } + + std::ifstream f; + f.open(path); + + if (!f.is_open()) { + vCritical << "failed to open file = " << path.c_str(); + return {}; + } else { + std::string content; + + std::getline(f, content, '\0'); + f.close(); + + if (content.empty()) return {}; + + auto obj = internal::model::parse(const_cast<char *>(content.c_str()), + dirname(path)); + + if (obj && cachePolicy) ModelCache::instance().add(path, obj); + + return obj; + } +} + +std::shared_ptr<model::Composition> model::loadFromData( + std::string jsonData, const std::string &key, std::string resourcePath, + bool cachePolicy) +{ + if (cachePolicy) { + auto obj = ModelCache::instance().find(key); + if (obj) return obj; + } + + auto obj = internal::model::parse(const_cast<char *>(jsonData.c_str()), + std::move(resourcePath)); + + if (obj && cachePolicy) ModelCache::instance().add(key, obj); + + return obj; +} + +std::shared_ptr<model::Composition> model::loadFromData( + std::string jsonData, std::string resourcePath, model::ColorFilter filter) +{ + return internal::model::parse(const_cast<char *>(jsonData.c_str()), + std::move(resourcePath), std::move(filter)); +} diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottiemodel.cpp b/vendor/github.com/Benau/go_rlottie/lottie_lottiemodel.cpp new file mode 100644 index 00000000..0389e8aa --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottiemodel.cpp @@ -0,0 +1,390 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "lottie_lottiemodel.h" +#include <cassert> +#include <iterator> +#include <stack> +#include "vector_vimageloader.h" +#include "vector_vline.h" + +using namespace rlottie::internal; + +/* + * We process the iterator objects in the children list + * by iterating from back to front. when we find a repeater object + * we remove the objects from satrt till repeater object and then place + * under a new shape group object which we add it as children to the repeater + * object. + * Then we visit the childrens of the newly created shape group object to + * process the remaining repeater object(when children list contains more than + * one repeater). + * + */ +class LottieRepeaterProcesser { +public: + void visitChildren(model::Group *obj) + { + for (auto i = obj->mChildren.rbegin(); i != obj->mChildren.rend(); + ++i) { + auto child = (*i); + if (child->type() == model::Object::Type::Repeater) { + model::Repeater *repeater = + static_cast<model::Repeater *>(child); + // check if this repeater is already processed + // can happen if the layer is an asset and referenced by + // multiple layer. + if (repeater->processed()) continue; + + repeater->markProcessed(); + + auto content = repeater->content(); + // 1. increment the reverse iterator to point to the + // object before the repeater + ++i; + // 2. move all the children till repater to the group + std::move(obj->mChildren.begin(), i.base(), + back_inserter(content->mChildren)); + // 3. erase the objects from the original children list + obj->mChildren.erase(obj->mChildren.begin(), i.base()); + + // 5. visit newly created group to process remaining repeater + // object. + visitChildren(content); + // 6. exit the loop as the current iterators are invalid + break; + } + visit(child); + } + } + + void visit(model::Object *obj) + { + switch (obj->type()) { + case model::Object::Type::Group: + case model::Object::Type::Layer: { + visitChildren(static_cast<model::Group *>(obj)); + break; + } + default: + break; + } + } +}; + +class LottieUpdateStatVisitor { + model::Composition::Stats *stat; + +public: + explicit LottieUpdateStatVisitor(model::Composition::Stats *s) : stat(s) {} + void visitChildren(model::Group *obj) + { + for (const auto &child : obj->mChildren) { + if (child) visit(child); + } + } + void visitLayer(model::Layer *layer) + { + switch (layer->mLayerType) { + case model::Layer::Type::Precomp: + stat->precompLayerCount++; + break; + case model::Layer::Type::Null: + stat->nullLayerCount++; + break; + case model::Layer::Type::Shape: + stat->shapeLayerCount++; + break; + case model::Layer::Type::Solid: + stat->solidLayerCount++; + break; + case model::Layer::Type::Image: + stat->imageLayerCount++; + break; + default: + break; + } + visitChildren(layer); + } + void visit(model::Object *obj) + { + switch (obj->type()) { + case model::Object::Type::Layer: { + visitLayer(static_cast<model::Layer *>(obj)); + break; + } + case model::Object::Type::Repeater: { + visitChildren(static_cast<model::Repeater *>(obj)->content()); + break; + } + case model::Object::Type::Group: { + visitChildren(static_cast<model::Group *>(obj)); + break; + } + default: + break; + } + } +}; + +void model::Composition::processRepeaterObjects() +{ + LottieRepeaterProcesser visitor; + visitor.visit(mRootLayer); +} + +void model::Composition::updateStats() +{ + LottieUpdateStatVisitor visitor(&mStats); + visitor.visit(mRootLayer); +} + +VMatrix model::Repeater::Transform::matrix(int frameNo, float multiplier) const +{ + VPointF scale = mScale.value(frameNo) / 100.f; + scale.setX(std::pow(scale.x(), multiplier)); + scale.setY(std::pow(scale.y(), multiplier)); + VMatrix m; + m.translate(mPosition.value(frameNo) * multiplier) + .translate(mAnchor.value(frameNo)) + .scale(scale) + .rotate(mRotation.value(frameNo) * multiplier) + .translate(-mAnchor.value(frameNo)); + + return m; +} + +VMatrix model::Transform::Data::matrix(int frameNo, bool autoOrient) const +{ + VMatrix m; + VPointF position; + if (mExtra && mExtra->mSeparate) { + position.setX(mExtra->mSeparateX.value(frameNo)); + position.setY(mExtra->mSeparateY.value(frameNo)); + } else { + position = mPosition.value(frameNo); + } + + float angle = autoOrient ? mPosition.angle(frameNo) : 0; + if (mExtra && mExtra->m3DData) { + m.translate(position) + .rotate(mExtra->m3DRz.value(frameNo) + angle) + .rotate(mExtra->m3DRy.value(frameNo), VMatrix::Axis::Y) + .rotate(mExtra->m3DRx.value(frameNo), VMatrix::Axis::X) + .scale(mScale.value(frameNo) / 100.f) + .translate(-mAnchor.value(frameNo)); + } else { + m.translate(position) + .rotate(mRotation.value(frameNo) + angle) + .scale(mScale.value(frameNo) / 100.f) + .translate(-mAnchor.value(frameNo)); + } + return m; +} + +void model::Dash::getDashInfo(int frameNo, std::vector<float> &result) const +{ + result.clear(); + + if (mData.size() <= 1) return; + + if (result.capacity() < mData.size()) result.reserve(mData.size() + 1); + + for (const auto &elm : mData) result.push_back(elm.value(frameNo)); + + // if the size is even then we are missing last + // gap information which is same as the last dash value + // copy it from the last dash value. + // NOTE: last value is the offset and last-1 is the last dash value. + auto size = result.size(); + if ((size % 2) == 0) { + // copy offset value to end. + result.push_back(result.back()); + // copy dash value to gap. + result[size - 1] = result[size - 2]; + } +} + +/** + * Both the color stops and opacity stops are in the same array. + * There are {@link #colorPoints} colors sequentially as: + * [ + * ..., + * position, + * red, + * green, + * blue, + * ... + * ] + * + * The remainder of the array is the opacity stops sequentially as: + * [ + * ..., + * position, + * opacity, + * ... + * ] + */ +void model::Gradient::populate(VGradientStops &stops, int frameNo) +{ + model::Gradient::Data gradData = mGradient.value(frameNo); + auto size = gradData.mGradient.size(); + float * ptr = gradData.mGradient.data(); + int colorPoints = mColorPoints; + if (colorPoints == -1) { // for legacy bodymovin (ref: lottie-android) + colorPoints = int(size / 4); + } + auto opacityArraySize = size - colorPoints * 4; + float *opacityPtr = ptr + (colorPoints * 4); + stops.clear(); + size_t j = 0; + for (int i = 0; i < colorPoints; i++) { + float colorStop = ptr[0]; + model::Color color = model::Color(ptr[1], ptr[2], ptr[3]); + if (opacityArraySize) { + if (j == opacityArraySize) { + // already reached the end + float stop1 = opacityPtr[j - 4]; + float op1 = opacityPtr[j - 3]; + float stop2 = opacityPtr[j - 2]; + float op2 = opacityPtr[j - 1]; + if (colorStop > stop2) { + stops.push_back( + std::make_pair(colorStop, color.toColor(op2))); + } else { + float progress = (colorStop - stop1) / (stop2 - stop1); + float opacity = op1 + progress * (op2 - op1); + stops.push_back( + std::make_pair(colorStop, color.toColor(opacity))); + } + continue; + } + for (; j < opacityArraySize; j += 2) { + float opacityStop = opacityPtr[j]; + if (opacityStop < colorStop) { + // add a color using opacity stop + stops.push_back(std::make_pair( + opacityStop, color.toColor(opacityPtr[j + 1]))); + continue; + } + // add a color using color stop + if (j == 0) { + stops.push_back(std::make_pair( + colorStop, color.toColor(opacityPtr[j + 1]))); + } else { + float progress = (colorStop - opacityPtr[j - 2]) / + (opacityPtr[j] - opacityPtr[j - 2]); + float opacity = + opacityPtr[j - 1] + + progress * (opacityPtr[j + 1] - opacityPtr[j - 1]); + stops.push_back( + std::make_pair(colorStop, color.toColor(opacity))); + } + j += 2; + break; + } + } else { + stops.push_back(std::make_pair(colorStop, color.toColor())); + } + ptr += 4; + } +} + +void model::Gradient::update(std::unique_ptr<VGradient> &grad, int frameNo) +{ + bool init = false; + if (!grad) { + if (mGradientType == 1) + grad = std::make_unique<VGradient>(VGradient::Type::Linear); + else + grad = std::make_unique<VGradient>(VGradient::Type::Radial); + grad->mSpread = VGradient::Spread::Pad; + init = true; + } + + if (!mGradient.isStatic() || init) { + populate(grad->mStops, frameNo); + } + + if (mGradientType == 1) { // linear gradient + VPointF start = mStartPoint.value(frameNo); + VPointF end = mEndPoint.value(frameNo); + grad->linear.x1 = start.x(); + grad->linear.y1 = start.y(); + grad->linear.x2 = end.x(); + grad->linear.y2 = end.y(); + } else { // radial gradient + VPointF start = mStartPoint.value(frameNo); + VPointF end = mEndPoint.value(frameNo); + grad->radial.cx = start.x(); + grad->radial.cy = start.y(); + grad->radial.cradius = + VLine::length(start.x(), start.y(), end.x(), end.y()); + /* + * Focal point is the point lives in highlight length distance from + * center along the line (start, end) and rotated by highlight angle. + * below calculation first finds the quadrant(angle) on which the point + * lives by applying inverse slope formula then adds the rotation angle + * to find the final angle. then point is retrived using circle equation + * of center, angle and distance. + */ + float progress = mHighlightLength.value(frameNo) / 100.0f; + if (vCompare(progress, 1.0f)) progress = 0.99f; + float startAngle = VLine(start, end).angle(); + float highlightAngle = mHighlightAngle.value(frameNo); + static constexpr float K_PI = 3.1415926f; + float angle = (startAngle + highlightAngle) * (K_PI / 180.0f); + grad->radial.fx = + grad->radial.cx + std::cos(angle) * progress * grad->radial.cradius; + grad->radial.fy = + grad->radial.cy + std::sin(angle) * progress * grad->radial.cradius; + // Lottie dosen't have any focal radius concept. + grad->radial.fradius = 0; + } +} + +void model::Asset::loadImageData(std::string data) +{ + if (!data.empty()) + mBitmap = VImageLoader::instance().load(data.c_str(), data.length()); +} + +void model::Asset::loadImagePath(std::string path) +{ + if (!path.empty()) mBitmap = VImageLoader::instance().load(path.c_str()); +} + +std::vector<LayerInfo> model::Composition::layerInfoList() const +{ + if (!mRootLayer || mRootLayer->mChildren.empty()) return {}; + + std::vector<LayerInfo> result; + + result.reserve(mRootLayer->mChildren.size()); + + for (auto it : mRootLayer->mChildren) { + auto layer = static_cast<model::Layer *>(it); + result.emplace_back(layer->name(), layer->mInFrame, layer->mOutFrame); + } + + return result; +} diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottiemodel.h b/vendor/github.com/Benau/go_rlottie/lottie_lottiemodel.h new file mode 100644 index 00000000..defec500 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottiemodel.h @@ -0,0 +1,1148 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef LOTModel_H +#define LOTModel_H + +#include <algorithm> +#include <cmath> +#include <cstring> +#include <functional> +#include <memory> +#include <unordered_map> +#include <vector> +#include "vector_varenaalloc.h" +#include "vector_vbezier.h" +#include "vector_vbrush.h" +#include "vector_vinterpolator.h" +#include "vector_vmatrix.h" +#include "vector_vpath.h" +#include "vector_vpoint.h" +#include "vector_vrect.h" + +V_USE_NAMESPACE + +namespace rlottie { + +namespace internal { + +using Marker = std::tuple<std::string, int, int>; + +using LayerInfo = Marker; + +template <typename T> +inline T lerp(const T &start, const T &end, float t) +{ + return start + t * (end - start); +} + +namespace model { + +enum class MatteType : uchar { None = 0, Alpha = 1, AlphaInv, Luma, LumaInv }; + +enum class BlendMode : uchar { + Normal = 0, + Multiply = 1, + Screen = 2, + OverLay = 3 +}; + +class Color { +public: + Color() = default; + Color(float red, float green, float blue) : r(red), g(green), b(blue) {} + VColor toColor(float a = 1) + { + return VColor(uchar(255 * r), uchar(255 * g), uchar(255 * b), + uchar(255 * a)); + } + friend inline Color operator+(const Color &c1, const Color &c2); + friend inline Color operator-(const Color &c1, const Color &c2); + +public: + float r{1}; + float g{1}; + float b{1}; +}; + +inline Color operator-(const Color &c1, const Color &c2) +{ + return Color(c1.r - c2.r, c1.g - c2.g, c1.b - c2.b); +} +inline Color operator+(const Color &c1, const Color &c2) +{ + return Color(c1.r + c2.r, c1.g + c2.g, c1.b + c2.b); +} + +inline const Color operator*(const Color &c, float m) +{ + return Color(c.r * m, c.g * m, c.b * m); +} + +inline const Color operator*(float m, const Color &c) +{ + return Color(c.r * m, c.g * m, c.b * m); +} + +struct PathData { + std::vector<VPointF> mPoints; + bool mClosed = false; /* "c" */ + void reserve(size_t size) { mPoints.reserve(mPoints.size() + size); } + static void lerp(const PathData &start, const PathData &end, float t, + VPath &result) + { + result.reset(); + // test for empty animation data. + if (start.mPoints.empty() || end.mPoints.empty()) + { + return; + } + auto size = std::min(start.mPoints.size(), end.mPoints.size()); + /* reserve exact memory requirement at once + * ptSize = size + 1(size + close) + * elmSize = size/3 cubic + 1 move + 1 close + */ + result.reserve(size + 1, size / 3 + 2); + result.moveTo(start.mPoints[0] + + t * (end.mPoints[0] - start.mPoints[0])); + for (size_t i = 1; i < size; i += 3) { + result.cubicTo( + start.mPoints[i] + t * (end.mPoints[i] - start.mPoints[i]), + start.mPoints[i + 1] + + t * (end.mPoints[i + 1] - start.mPoints[i + 1]), + start.mPoints[i + 2] + + t * (end.mPoints[i + 2] - start.mPoints[i + 2])); + } + if (start.mClosed) result.close(); + } + void toPath(VPath &path) const + { + path.reset(); + + if (mPoints.empty()) return; + + auto size = mPoints.size(); + auto points = mPoints.data(); + /* reserve exact memory requirement at once + * ptSize = size + 1(size + close) + * elmSize = size/3 cubic + 1 move + 1 close + */ + path.reserve(size + 1, size / 3 + 2); + path.moveTo(points[0]); + for (size_t i = 1; i < size; i += 3) { + path.cubicTo(points[i], points[i + 1], points[i + 2]); + } + if (mClosed) path.close(); + } +}; + +template <typename T, typename Tag = void> +struct Value { + T start_; + T end_; + T at(float t) const { return lerp(start_, end_, t); } + float angle(float) const { return 0; } + void cache() {} +}; + +struct Position; + +template <typename T> +struct Value<T, Position> { + T start_; + T end_; + T inTangent_; + T outTangent_; + float length_{0}; + bool hasTangent_{false}; + + void cache() + { + if (hasTangent_) { + inTangent_ = end_ + inTangent_; + outTangent_ = start_ + outTangent_; + length_ = VBezier::fromPoints(start_, outTangent_, inTangent_, end_) + .length(); + if (vIsZero(length_)) { + // this segment has zero length. + // so disable expensive path computaion. + hasTangent_ = false; + } + } + } + + T at(float t) const + { + if (hasTangent_) { + /* + * position along the path calcualated + * using bezier at progress length (t * bezlen) + */ + VBezier b = + VBezier::fromPoints(start_, outTangent_, inTangent_, end_); + return b.pointAt(b.tAtLength(t * length_, length_)); + } + return lerp(start_, end_, t); + } + + float angle(float t) const + { + if (hasTangent_) { + VBezier b = + VBezier::fromPoints(start_, outTangent_, inTangent_, end_); + return b.angleAt(b.tAtLength(t * length_, length_)); + } + return 0; + } +}; + +template <typename T, typename Tag> +class KeyFrames { +public: + struct Frame { + float progress(int frameNo) const + { + return interpolator_ ? interpolator_->value((frameNo - start_) / + (end_ - start_)) + : 0; + } + T value(int frameNo) const { return value_.at(progress(frameNo)); } + float angle(int frameNo) const + { + return value_.angle(progress(frameNo)); + } + + float start_{0}; + float end_{0}; + VInterpolator *interpolator_{nullptr}; + Value<T, Tag> value_; + }; + + T value(int frameNo) const + { + if (frames_.front().start_ >= frameNo) + return frames_.front().value_.start_; + if (frames_.back().end_ <= frameNo) return frames_.back().value_.end_; + + for (const auto &keyFrame : frames_) { + if (frameNo >= keyFrame.start_ && frameNo < keyFrame.end_) + return keyFrame.value(frameNo); + } + return {}; + } + + float angle(int frameNo) const + { + if ((frames_.front().start_ >= frameNo) || + (frames_.back().end_ <= frameNo)) + return 0; + + for (const auto &frame : frames_) { + if (frameNo >= frame.start_ && frameNo < frame.end_) + return frame.angle(frameNo); + } + return 0; + } + + bool changed(int prevFrame, int curFrame) const + { + auto first = frames_.front().start_; + auto last = frames_.back().end_; + + return !((first > prevFrame && first > curFrame) || + (last < prevFrame && last < curFrame)); + } + void cache() + { + for (auto &e : frames_) e.value_.cache(); + } + +public: + std::vector<Frame> frames_; +}; + +template <typename T, typename Tag = void> +class Property { +public: + using Animation = KeyFrames<T, Tag>; + + Property() { construct(impl_.value_, {}); } + explicit Property(T value) { construct(impl_.value_, std::move(value)); } + + const Animation &animation() const { return *(impl_.animation_.get()); } + const T & value() const { return impl_.value_; } + + Animation &animation() + { + if (isValue_) { + destroy(); + construct(impl_.animation_, std::make_unique<Animation>()); + isValue_ = false; + } + return *(impl_.animation_.get()); + } + + T &value() + { + assert(isValue_); + return impl_.value_; + } + + Property(Property &&other) noexcept + { + if (!other.isValue_) { + construct(impl_.animation_, std::move(other.impl_.animation_)); + isValue_ = false; + } else { + construct(impl_.value_, std::move(other.impl_.value_)); + isValue_ = true; + } + } + // delete special member functions + Property(const Property &) = delete; + Property &operator=(const Property &) = delete; + Property &operator=(Property &&) = delete; + + ~Property() { destroy(); } + + bool isStatic() const { return isValue_; } + + T value(int frameNo) const + { + return isStatic() ? value() : animation().value(frameNo); + } + + // special function only for type T=PathData + template <typename forT = PathData> + auto value(int frameNo, VPath &path) const -> + typename std::enable_if_t<std::is_same<T, forT>::value, void> + { + if (isStatic()) { + value().toPath(path); + } else { + const auto &vec = animation().frames_; + if (vec.front().start_ >= frameNo) + return vec.front().value_.start_.toPath(path); + if (vec.back().end_ <= frameNo) + return vec.back().value_.end_.toPath(path); + + for (const auto &keyFrame : vec) { + if (frameNo >= keyFrame.start_ && frameNo < keyFrame.end_) { + T::lerp(keyFrame.value_.start_, keyFrame.value_.end_, + keyFrame.progress(frameNo), path); + } + } + } + } + + float angle(int frameNo) const + { + return isStatic() ? 0 : animation().angle(frameNo); + } + + bool changed(int prevFrame, int curFrame) const + { + return isStatic() ? false : animation().changed(prevFrame, curFrame); + } + void cache() + { + if (!isStatic()) animation().cache(); + } + +private: + template <typename Tp> + void construct(Tp &member, Tp &&val) + { + new (&member) Tp(std::move(val)); + } + + void destroy() + { + if (isValue_) { + impl_.value_.~T(); + } else { + using std::unique_ptr; + impl_.animation_.~unique_ptr<Animation>(); + } + } + union details { + std::unique_ptr<Animation> animation_; + T value_; + details(){}; + details(const details &) = delete; + details(details &&) = delete; + details &operator=(details &&) = delete; + details &operator=(const details &) = delete; + ~details() noexcept {}; + } impl_; + bool isValue_{true}; +}; + +class Path; +struct PathData; +struct Dash { + std::vector<Property<float>> mData; + bool empty() const { return mData.empty(); } + size_t size() const { return mData.size(); } + bool isStatic() const + { + for (const auto &elm : mData) + if (!elm.isStatic()) return false; + return true; + } + void getDashInfo(int frameNo, std::vector<float> &result) const; +}; + +class Mask { +public: + enum class Mode { None, Add, Substarct, Intersect, Difference }; + float opacity(int frameNo) const + { + return mOpacity.value(frameNo) / 100.0f; + } + bool isStatic() const { return mIsStatic; } + +public: + Property<PathData> mShape; + Property<float> mOpacity{100}; + bool mInv{false}; + bool mIsStatic{true}; + Mask::Mode mMode; +}; + +class Object { +public: + enum class Type : unsigned char { + Composition = 1, + Layer, + Group, + Transform, + Fill, + Stroke, + GFill, + GStroke, + Rect, + Ellipse, + Path, + Polystar, + Trim, + Repeater, + RoundedCorner + }; + + explicit Object(Object::Type type) : mPtr(nullptr) + { + mData._type = type; + mData._static = true; + mData._shortString = true; + mData._hidden = false; + } + ~Object() noexcept + { + if (!shortString() && mPtr) free(mPtr); + } + Object(const Object &) = delete; + Object &operator=(const Object &) = delete; + + void setStatic(bool value) { mData._static = value; } + bool isStatic() const { return mData._static; } + bool hidden() const { return mData._hidden; } + void setHidden(bool value) { mData._hidden = value; } + void setType(Object::Type type) { mData._type = type; } + Object::Type type() const { return mData._type; } + void setName(const char *name) + { + if (name) { + auto len = strlen(name); + if (len < maxShortStringLength) { + setShortString(true); + strncpy(mData._buffer, name, len + 1); + } else { + setShortString(false); + mPtr = strdup(name); + } + } + } + const char *name() const { return shortString() ? mData._buffer : mPtr; } + +private: + static constexpr unsigned char maxShortStringLength = 14; + void setShortString(bool value) { mData._shortString = value; } + bool shortString() const { return mData._shortString; } + struct Data { + char _buffer[maxShortStringLength]; + Object::Type _type; + bool _static : 1; + bool _hidden : 1; + bool _shortString : 1; + }; + union { + Data mData; + char *mPtr{nullptr}; + }; +}; + +struct Asset { + enum class Type : unsigned char { Precomp, Image, Char }; + bool isStatic() const { return mStatic; } + void setStatic(bool value) { mStatic = value; } + VBitmap bitmap() const { return mBitmap; } + void loadImageData(std::string data); + void loadImagePath(std::string Path); + Type mAssetType{Type::Precomp}; + bool mStatic{true}; + std::string mRefId; // ref id + std::vector<Object *> mLayers; + // image asset data + int mWidth{0}; + int mHeight{0}; + VBitmap mBitmap; +}; + +class Layer; + +class Composition : public Object { +public: + Composition() : Object(Object::Type::Composition) {} + std::vector<LayerInfo> layerInfoList() const; + const std::vector<Marker> &markers() const { return mMarkers; } + double duration() const + { + return frameDuration() / frameRate(); // in second + } + size_t frameAtPos(double pos) const + { + if (pos < 0) pos = 0; + if (pos > 1) pos = 1; + return size_t(round(pos * frameDuration())); + } + long frameAtTime(double timeInSec) const + { + return long(frameAtPos(timeInSec / duration())); + } + size_t totalFrame() const { return mEndFrame - mStartFrame; } + long frameDuration() const { return mEndFrame - mStartFrame - 1; } + float frameRate() const { return mFrameRate; } + size_t startFrame() const { return mStartFrame; } + size_t endFrame() const { return mEndFrame; } + VSize size() const { return mSize; } + void processRepeaterObjects(); + void updateStats(); + +public: + struct Stats { + uint16_t precompLayerCount{0}; + uint16_t solidLayerCount{0}; + uint16_t shapeLayerCount{0}; + uint16_t imageLayerCount{0}; + uint16_t nullLayerCount{0}; + }; + +public: + std::string mVersion; + VSize mSize; + long mStartFrame{0}; + long mEndFrame{0}; + float mFrameRate{60}; + BlendMode mBlendMode{BlendMode::Normal}; + Layer * mRootLayer{nullptr}; + std::unordered_map<std::string, Asset *> mAssets; + + std::vector<Marker> mMarkers; + VArenaAlloc mArenaAlloc{2048}; + Stats mStats; +}; + +class Transform : public Object { +public: + struct Data { + struct Extra { + Property<float> m3DRx{0}; + Property<float> m3DRy{0}; + Property<float> m3DRz{0}; + Property<float> mSeparateX{0}; + Property<float> mSeparateY{0}; + bool mSeparate{false}; + bool m3DData{false}; + }; + VMatrix matrix(int frameNo, bool autoOrient = false) const; + float opacity(int frameNo) const + { + return mOpacity.value(frameNo) / 100.0f; + } + void createExtraData() + { + if (!mExtra) mExtra = std::make_unique<Extra>(); + } + Property<float> mRotation{0}; /* "r" */ + Property<VPointF> mScale{{100, 100}}; /* "s" */ + Property<VPointF, Position> mPosition; /* "p" */ + Property<VPointF> mAnchor; /* "a" */ + Property<float> mOpacity{100}; /* "o" */ + std::unique_ptr<Extra> mExtra; + }; + + Transform() : Object(Object::Type::Transform) {} + void set(Transform::Data *data, bool staticFlag) + { + setStatic(staticFlag); + if (isStatic()) { + new (&impl.mStaticData) + StaticData(data->matrix(0), data->opacity(0)); + } else { + impl.mData = data; + } + } + VMatrix matrix(int frameNo, bool autoOrient = false) const + { + if (isStatic()) return impl.mStaticData.mMatrix; + return impl.mData->matrix(frameNo, autoOrient); + } + float opacity(int frameNo) const + { + if (isStatic()) return impl.mStaticData.mOpacity; + return impl.mData->opacity(frameNo); + } + Transform(const Transform &) = delete; + Transform(Transform &&) = delete; + Transform &operator=(Transform &) = delete; + Transform &operator=(Transform &&) = delete; + ~Transform() noexcept { destroy(); } + +private: + void destroy() + { + if (isStatic()) { + impl.mStaticData.~StaticData(); + } + } + struct StaticData { + StaticData(VMatrix &&m, float opacity) + : mOpacity(opacity), mMatrix(std::move(m)) + { + } + float mOpacity; + VMatrix mMatrix; + }; + union details { + Data * mData{nullptr}; + StaticData mStaticData; + details(){}; + details(const details &) = delete; + details(details &&) = delete; + details &operator=(details &&) = delete; + details &operator=(const details &) = delete; + ~details() noexcept {}; + } impl; +}; + +class Group : public Object { +public: + Group() : Object(Object::Type::Group) {} + explicit Group(Object::Type type) : Object(type) {} + +public: + std::vector<Object *> mChildren; + Transform * mTransform{nullptr}; +}; + +class Layer : public Group { +public: + enum class Type : uchar { + Precomp = 0, + Solid = 1, + Image = 2, + Null = 3, + Shape = 4, + Text = 5 + }; + Layer() : Group(Object::Type::Layer) {} + bool hasRoundedCorner() const noexcept { return mHasRoundedCorner; } + bool hasPathOperator() const noexcept { return mHasPathOperator; } + bool hasGradient() const noexcept { return mHasGradient; } + bool hasMask() const noexcept { return mHasMask; } + bool hasRepeater() const noexcept { return mHasRepeater; } + int id() const noexcept { return mId; } + int parentId() const noexcept { return mParentId; } + bool hasParent() const noexcept { return mParentId != -1; } + int inFrame() const noexcept { return mInFrame; } + int outFrame() const noexcept { return mOutFrame; } + int startFrame() const noexcept { return mStartFrame; } + Color solidColor() const noexcept + { + return mExtra ? mExtra->mSolidColor : Color(); + } + bool autoOrient() const noexcept { return mAutoOrient; } + int timeRemap(int frameNo) const; + VSize layerSize() const { return mLayerSize; } + bool precompLayer() const { return mLayerType == Type::Precomp; } + VMatrix matrix(int frameNo) const + { + return mTransform ? mTransform->matrix(frameNo, autoOrient()) + : VMatrix{}; + } + float opacity(int frameNo) const + { + return mTransform ? mTransform->opacity(frameNo) : 1.0f; + } + Asset *asset() const { return mExtra ? mExtra->mAsset : nullptr; } + struct Extra { + Color mSolidColor; + std::string mPreCompRefId; + Property<float> mTimeRemap; /* "tm" */ + Composition * mCompRef{nullptr}; + Asset * mAsset{nullptr}; + std::vector<Mask *> mMasks; + }; + + Layer::Extra *extra() + { + if (!mExtra) mExtra = std::make_unique<Layer::Extra>(); + return mExtra.get(); + } + +public: + MatteType mMatteType{MatteType::None}; + Type mLayerType{Layer::Type::Null}; + BlendMode mBlendMode{BlendMode::Normal}; + bool mHasRoundedCorner{false}; + bool mHasPathOperator{false}; + bool mHasMask{false}; + bool mHasRepeater{false}; + bool mHasGradient{false}; + bool mAutoOrient{false}; + VSize mLayerSize; + int mParentId{-1}; // Lottie the id of the parent in the composition + int mId{-1}; // Lottie the group id used for parenting. + float mTimeStreatch{1.0f}; + int mInFrame{0}; + int mOutFrame{0}; + int mStartFrame{0}; + std::unique_ptr<Extra> mExtra{nullptr}; +}; + +/** + * TimeRemap has the value in time domain(in sec) + * To get the proper mapping first we get the mapped time at the current frame + * Number then we need to convert mapped time to frame number using the + * composition time line Ex: at frame 10 the mappend time is 0.5(500 ms) which + * will be convert to frame number 30 if the frame rate is 60. or will result to + * frame number 15 if the frame rate is 30. + */ +inline int Layer::timeRemap(int frameNo) const +{ + /* + * only consider startFrame() when there is no timeRemap. + * when a layer has timeremap bodymovin updates the startFrame() + * of all child layer so we don't have to take care of it. + */ + if (!mExtra || mExtra->mTimeRemap.isStatic()) + frameNo = frameNo - startFrame(); + else + frameNo = + mExtra->mCompRef->frameAtTime(mExtra->mTimeRemap.value(frameNo)); + /* Apply time streatch if it has any. + * Time streatch is just a factor by which the animation will speedup or + * slow down with respect to the overal animation. Time streach factor is + * already applied to the layers inFrame and outFrame. + * @TODO need to find out if timestreatch also affects the in and out frame + * of the child layers or not. */ + return int(frameNo / mTimeStreatch); +} + +class Stroke : public Object { +public: + Stroke() : Object(Object::Type::Stroke) {} + Color color(int frameNo) const { return mColor.value(frameNo); } + float opacity(int frameNo) const + { + return mOpacity.value(frameNo) / 100.0f; + } + float strokeWidth(int frameNo) const { return mWidth.value(frameNo); } + CapStyle capStyle() const { return mCapStyle; } + JoinStyle joinStyle() const { return mJoinStyle; } + float miterLimit() const { return mMiterLimit; } + bool hasDashInfo() const { return !mDash.empty(); } + void getDashInfo(int frameNo, std::vector<float> &result) const + { + return mDash.getDashInfo(frameNo, result); + } + +public: + Property<Color> mColor; /* "c" */ + Property<float> mOpacity{100}; /* "o" */ + Property<float> mWidth{0}; /* "w" */ + CapStyle mCapStyle{CapStyle::Flat}; /* "lc" */ + JoinStyle mJoinStyle{JoinStyle::Miter}; /* "lj" */ + float mMiterLimit{0}; /* "ml" */ + Dash mDash; + bool mEnabled{true}; /* "fillEnabled" */ +}; + +class Gradient : public Object { +public: + class Data { + public: + friend inline Gradient::Data operator+(const Gradient::Data &g1, + const Gradient::Data &g2); + friend inline Gradient::Data operator-(const Gradient::Data &g1, + const Gradient::Data &g2); + friend inline Gradient::Data operator*(float m, + const Gradient::Data &g); + + public: + std::vector<float> mGradient; + }; + explicit Gradient(Object::Type type) : Object(type) {} + inline float opacity(int frameNo) const + { + return mOpacity.value(frameNo) / 100.0f; + } + void update(std::unique_ptr<VGradient> &grad, int frameNo); + +private: + void populate(VGradientStops &stops, int frameNo); + +public: + int mGradientType{1}; /* "t" Linear=1 , Radial = 2*/ + Property<VPointF> mStartPoint; /* "s" */ + Property<VPointF> mEndPoint; /* "e" */ + Property<float> mHighlightLength{0}; /* "h" */ + Property<float> mHighlightAngle{0}; /* "a" */ + Property<float> mOpacity{100}; /* "o" */ + Property<Gradient::Data> mGradient; /* "g" */ + int mColorPoints{-1}; + bool mEnabled{true}; /* "fillEnabled" */ +}; + +class GradientStroke : public Gradient { +public: + GradientStroke() : Gradient(Object::Type::GStroke) {} + float width(int frameNo) const { return mWidth.value(frameNo); } + CapStyle capStyle() const { return mCapStyle; } + JoinStyle joinStyle() const { return mJoinStyle; } + float miterLimit() const { return mMiterLimit; } + bool hasDashInfo() const { return !mDash.empty(); } + void getDashInfo(int frameNo, std::vector<float> &result) const + { + return mDash.getDashInfo(frameNo, result); + } + +public: + Property<float> mWidth; /* "w" */ + CapStyle mCapStyle{CapStyle::Flat}; /* "lc" */ + JoinStyle mJoinStyle{JoinStyle::Miter}; /* "lj" */ + float mMiterLimit{0}; /* "ml" */ + Dash mDash; +}; + +class GradientFill : public Gradient { +public: + GradientFill() : Gradient(Object::Type::GFill) {} + FillRule fillRule() const { return mFillRule; } + +public: + FillRule mFillRule{FillRule::Winding}; /* "r" */ +}; + +class Fill : public Object { +public: + Fill() : Object(Object::Type::Fill) {} + Color color(int frameNo) const { return mColor.value(frameNo); } + float opacity(int frameNo) const + { + return mOpacity.value(frameNo) / 100.0f; + } + FillRule fillRule() const { return mFillRule; } + +public: + FillRule mFillRule{FillRule::Winding}; /* "r" */ + bool mEnabled{true}; /* "fillEnabled" */ + Property<Color> mColor; /* "c" */ + Property<float> mOpacity{100}; /* "o" */ +}; + +class Shape : public Object { +public: + explicit Shape(Object::Type type) : Object(type) {} + VPath::Direction direction() + { + return (mDirection == 3) ? VPath::Direction::CCW : VPath::Direction::CW; + } + +public: + int mDirection{1}; +}; + +class Path : public Shape { +public: + Path() : Shape(Object::Type::Path) {} + +public: + Property<PathData> mShape; +}; + +class RoundedCorner : public Object { +public: + RoundedCorner() : Object(Object::Type::RoundedCorner) {} + float radius(int frameNo) const { return mRadius.value(frameNo);} +public: + Property<float> mRadius{0}; +}; + +class Rect : public Shape { +public: + Rect() : Shape(Object::Type::Rect) {} + float roundness(int frameNo) + { + return mRoundedCorner ? mRoundedCorner->radius(frameNo) : + mRound.value(frameNo); + } + + bool roundnessChanged(int prevFrame, int curFrame) + { + return mRoundedCorner ? mRoundedCorner->mRadius.changed(prevFrame, curFrame) : + mRound.changed(prevFrame, curFrame); + } +public: + RoundedCorner* mRoundedCorner{nullptr}; + Property<VPointF> mPos; + Property<VPointF> mSize; + Property<float> mRound{0}; +}; + +class Ellipse : public Shape { +public: + Ellipse() : Shape(Object::Type::Ellipse) {} + +public: + Property<VPointF> mPos; + Property<VPointF> mSize; +}; + +class Polystar : public Shape { +public: + enum class PolyType { Star = 1, Polygon = 2 }; + Polystar() : Shape(Object::Type::Polystar) {} + +public: + Polystar::PolyType mPolyType{PolyType::Polygon}; + Property<VPointF> mPos; + Property<float> mPointCount{0}; + Property<float> mInnerRadius{0}; + Property<float> mOuterRadius{0}; + Property<float> mInnerRoundness{0}; + Property<float> mOuterRoundness{0}; + Property<float> mRotation{0}; +}; + +class Repeater : public Object { +public: + struct Transform { + VMatrix matrix(int frameNo, float multiplier) const; + float startOpacity(int frameNo) const + { + return mStartOpacity.value(frameNo) / 100; + } + float endOpacity(int frameNo) const + { + return mEndOpacity.value(frameNo) / 100; + } + bool isStatic() const + { + return mRotation.isStatic() && mScale.isStatic() && + mPosition.isStatic() && mAnchor.isStatic() && + mStartOpacity.isStatic() && mEndOpacity.isStatic(); + } + Property<float> mRotation{0}; /* "r" */ + Property<VPointF> mScale{{100, 100}}; /* "s" */ + Property<VPointF> mPosition; /* "p" */ + Property<VPointF> mAnchor; /* "a" */ + Property<float> mStartOpacity{100}; /* "so" */ + Property<float> mEndOpacity{100}; /* "eo" */ + }; + Repeater() : Object(Object::Type::Repeater) {} + Group *content() const { return mContent ? mContent : nullptr; } + void setContent(Group *content) { mContent = content; } + int maxCopies() const { return int(mMaxCopies); } + float copies(int frameNo) const { return mCopies.value(frameNo); } + float offset(int frameNo) const { return mOffset.value(frameNo); } + bool processed() const { return mProcessed; } + void markProcessed() { mProcessed = true; } + +public: + Group * mContent{nullptr}; + Transform mTransform; + Property<float> mCopies{0}; + Property<float> mOffset{0}; + float mMaxCopies{0.0}; + bool mProcessed{false}; +}; + +class Trim : public Object { +public: + struct Segment { + float start{0}; + float end{0}; + Segment() = default; + explicit Segment(float s, float e) : start(s), end(e) {} + }; + enum class TrimType { Simultaneously, Individually }; + Trim() : Object(Object::Type::Trim) {} + /* + * if start > end vector trims the path as a loop ( 2 segment) + * if start < end vector trims the path without loop ( 1 segment). + * if no offset then there is no loop. + */ + Segment segment(int frameNo) const + { + float start = mStart.value(frameNo) / 100.0f; + float end = mEnd.value(frameNo) / 100.0f; + float offset = std::fmod(mOffset.value(frameNo), 360.0f) / 360.0f; + + float diff = std::abs(start - end); + if (vCompare(diff, 0.0f)) return Segment(0, 0); + if (vCompare(diff, 1.0f)) return Segment(0, 1); + + if (offset > 0) { + start += offset; + end += offset; + if (start <= 1 && end <= 1) { + return noloop(start, end); + } else if (start > 1 && end > 1) { + return noloop(start - 1, end - 1); + } else { + return (start > 1) ? loop(start - 1, end) + : loop(start, end - 1); + } + } else { + start += offset; + end += offset; + if (start >= 0 && end >= 0) { + return noloop(start, end); + } else if (start < 0 && end < 0) { + return noloop(1 + start, 1 + end); + } else { + return (start < 0) ? loop(1 + start, end) + : loop(start, 1 + end); + } + } + } + Trim::TrimType type() const { return mTrimType; } + +private: + Segment noloop(float start, float end) const + { + assert(start >= 0); + assert(end >= 0); + Segment s; + s.start = std::min(start, end); + s.end = std::max(start, end); + return s; + } + Segment loop(float start, float end) const + { + assert(start >= 0); + assert(end >= 0); + Segment s; + s.start = std::max(start, end); + s.end = std::min(start, end); + return s; + } + +public: + Property<float> mStart{0}; + Property<float> mEnd{0}; + Property<float> mOffset{0}; + Trim::TrimType mTrimType{TrimType::Simultaneously}; +}; + +inline Gradient::Data operator+(const Gradient::Data &g1, + const Gradient::Data &g2) +{ + if (g1.mGradient.size() != g2.mGradient.size()) return g1; + + Gradient::Data newG; + newG.mGradient = g1.mGradient; + + auto g2It = g2.mGradient.begin(); + for (auto &i : newG.mGradient) { + i = i + *g2It; + g2It++; + } + + return newG; +} + +inline Gradient::Data operator-(const Gradient::Data &g1, + const Gradient::Data &g2) +{ + if (g1.mGradient.size() != g2.mGradient.size()) return g1; + Gradient::Data newG; + newG.mGradient = g1.mGradient; + + auto g2It = g2.mGradient.begin(); + for (auto &i : newG.mGradient) { + i = i - *g2It; + g2It++; + } + + return newG; +} + +inline Gradient::Data operator*(float m, const Gradient::Data &g) +{ + Gradient::Data newG; + newG.mGradient = g.mGradient; + + for (auto &i : newG.mGradient) { + i = i * m; + } + return newG; +} + +using ColorFilter = std::function<void(float &, float &, float &)>; + +void configureModelCacheSize(size_t cacheSize); + +std::shared_ptr<model::Composition> loadFromFile(const std::string &filePath, + bool cachePolicy); + +std::shared_ptr<model::Composition> loadFromData(std::string jsonData, + const std::string &key, + std::string resourcePath, + bool cachePolicy); + +std::shared_ptr<model::Composition> loadFromData(std::string jsonData, + std::string resourcePath, + ColorFilter filter); + +std::shared_ptr<model::Composition> parse(char *str, std::string dir_path, + ColorFilter filter = {}); + +} // namespace model + +} // namespace internal + +} // namespace rlottie + +#endif // LOTModel_H diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottieparser.cpp b/vendor/github.com/Benau/go_rlottie/lottie_lottieparser.cpp new file mode 100644 index 00000000..91839d41 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottieparser.cpp @@ -0,0 +1,2390 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +//#define DEBUG_PARSER + +// This parser implements JSON token-by-token parsing with an API that is +// more direct; we don't have to create handler object and +// callbacks. Instead, we retrieve values from the JSON stream by calling +// GetInt(), GetDouble(), GetString() and GetBool(), traverse into structures +// by calling EnterObject() and EnterArray(), and skip over unwanted data by +// calling SkipValue(). As we know the lottie file structure this way will be +// the efficient way of parsing the file. +// +// If you aren't sure of what's next in the JSON data, you can use PeekType() +// and PeekValue() to look ahead to the next object before reading it. +// +// If you call the wrong retrieval method--e.g. GetInt when the next JSON token +// is not an int, EnterObject or EnterArray when there isn't actually an object +// or array to read--the stream parsing will end immediately and no more data +// will be delivered. +// +// After calling EnterObject, you retrieve keys via NextObjectKey() and values +// via the normal getters. When NextObjectKey() returns null, you have exited +// the object, or you can call SkipObject() to skip to the end of the object +// immediately. If you fetch the entire object (i.e. NextObjectKey() returned +// null), you should not call SkipObject(). +// +// After calling EnterArray(), you must alternate between calling +// NextArrayValue() to see if the array has more data, and then retrieving +// values via the normal getters. You can call SkipArray() to skip to the end of +// the array immediately. If you fetch the entire array (i.e. NextArrayValue() +// returned null), you should not call SkipArray(). +// +// This parser uses in-situ strings, so the JSON buffer will be altered during +// the parse. + +#include <array> + +#include "lottie_lottiemodel.h" +#include "lottie_rapidjson_document.h" + +RAPIDJSON_DIAG_PUSH +#ifdef __GNUC__ +RAPIDJSON_DIAG_OFF(effc++) +#endif + +using namespace rapidjson; + +using namespace rlottie::internal; + +class LookaheadParserHandler { +public: + bool Null() + { + st_ = kHasNull; + v_.SetNull(); + return true; + } + bool Bool(bool b) + { + st_ = kHasBool; + v_.SetBool(b); + return true; + } + bool Int(int i) + { + st_ = kHasNumber; + v_.SetInt(i); + return true; + } + bool Uint(unsigned u) + { + st_ = kHasNumber; + v_.SetUint(u); + return true; + } + bool Int64(int64_t i) + { + st_ = kHasNumber; + v_.SetInt64(i); + return true; + } + bool Uint64(int64_t u) + { + st_ = kHasNumber; + v_.SetUint64(u); + return true; + } + bool Double(double d) + { + st_ = kHasNumber; + v_.SetDouble(d); + return true; + } + bool RawNumber(const char *, SizeType, bool) { return false; } + bool String(const char *str, SizeType length, bool) + { + st_ = kHasString; + v_.SetString(str, length); + return true; + } + bool StartObject() + { + st_ = kEnteringObject; + return true; + } + bool Key(const char *str, SizeType length, bool) + { + st_ = kHasKey; + v_.SetString(str, length); + return true; + } + bool EndObject(SizeType) + { + st_ = kExitingObject; + return true; + } + bool StartArray() + { + st_ = kEnteringArray; + return true; + } + bool EndArray(SizeType) + { + st_ = kExitingArray; + return true; + } + + void Error() + { + st_ = kError; + } +protected: + explicit LookaheadParserHandler(char *str); + +protected: + enum LookaheadParsingState { + kInit, + kError, + kHasNull, + kHasBool, + kHasNumber, + kHasString, + kHasKey, + kEnteringObject, + kExitingObject, + kEnteringArray, + kExitingArray + }; + + Value v_; + LookaheadParsingState st_; + Reader r_; + InsituStringStream ss_; + + static const int parseFlags = kParseDefaultFlags | kParseInsituFlag; +}; + +class LottieParserImpl : public LookaheadParserHandler { +public: + LottieParserImpl(char *str, std::string dir_path, model::ColorFilter filter) + : LookaheadParserHandler(str), + mColorFilter(std::move(filter)), + mDirPath(std::move(dir_path)) + { + } + bool VerifyType(); + bool ParseNext(); + +public: + VArenaAlloc &allocator() { return compRef->mArenaAlloc; } + bool EnterObject(); + bool EnterArray(); + const char * NextObjectKey(); + bool NextArrayValue(); + int GetInt(); + double GetDouble(); + const char * GetString(); + std::string GetStringObject(); + bool GetBool(); + void GetNull(); + + void SkipObject(); + void SkipArray(); + void SkipValue(); + Value *PeekValue(); + int PeekType() const; + bool IsValid() { return st_ != kError; } + + void Skip(const char *key); + model::BlendMode getBlendMode(); + CapStyle getLineCap(); + JoinStyle getLineJoin(); + FillRule getFillRule(); + model::Trim::TrimType getTrimType(); + model::MatteType getMatteType(); + model::Layer::Type getLayerType(); + + std::shared_ptr<model::Composition> composition() const + { + return mComposition; + } + void parseComposition(); + void parseMarkers(); + void parseMarker(); + void parseAssets(model::Composition *comp); + model::Asset * parseAsset(); + void parseLayers(model::Composition *comp); + model::Layer * parseLayer(); + void parseMaskProperty(model::Layer *layer); + void parseShapesAttr(model::Layer *layer); + void parseObject(model::Group *parent); + model::Mask * parseMaskObject(); + model::Object * parseObjectTypeAttr(); + model::Object * parseGroupObject(); + model::Rect * parseRectObject(); + model::RoundedCorner * parseRoundedCorner(); + void updateRoundedCorner(model::Group *parent, model::RoundedCorner *rc); + + model::Ellipse * parseEllipseObject(); + model::Path * parseShapeObject(); + model::Polystar *parsePolystarObject(); + + model::Transform * parseTransformObject(bool ddd = false); + model::Fill * parseFillObject(); + model::GradientFill * parseGFillObject(); + model::Stroke * parseStrokeObject(); + model::GradientStroke *parseGStrokeObject(); + model::Trim * parseTrimObject(); + model::Repeater * parseReapeaterObject(); + + void parseGradientProperty(model::Gradient *gradient, const char *key); + + VPointF parseInperpolatorPoint(); + + void getValue(VPointF &pt); + void getValue(float &fval); + void getValue(model::Color &color); + void getValue(int &ival); + void getValue(model::PathData &shape); + void getValue(model::Gradient::Data &gradient); + void getValue(std::vector<VPointF> &v); + void getValue(model::Repeater::Transform &); + + template <typename T, typename Tag> + bool parseKeyFrameValue(const char *, model::Value<T, Tag> &) + { + return false; + } + + template <typename T> + bool parseKeyFrameValue(const char * key, + model::Value<T, model::Position> &value); + template <typename T, typename Tag> + void parseKeyFrame(model::KeyFrames<T, Tag> &obj); + template <typename T> + void parseProperty(model::Property<T> &obj); + template <typename T, typename Tag> + void parsePropertyHelper(model::Property<T, Tag> &obj); + + void parseShapeProperty(model::Property<model::PathData> &obj); + void parseDashProperty(model::Dash &dash); + + VInterpolator *interpolator(VPointF, VPointF, std::string); + + model::Color toColor(const char *str); + + void resolveLayerRefs(); + void parsePathInfo(); + +private: + model::ColorFilter mColorFilter; + struct { + std::vector<VPointF> mInPoint; /* "i" */ + std::vector<VPointF> mOutPoint; /* "o" */ + std::vector<VPointF> mVertices; /* "v" */ + std::vector<VPointF> mResult; + bool mClosed{false}; + + void convert() + { + // shape data could be empty. + if (mInPoint.empty() || mOutPoint.empty() || mVertices.empty()) { + mResult.clear(); + return; + } + + /* + * Convert the AE shape format to + * list of bazier curves + * The final structure will be Move +size*Cubic + Cubic (if the path + * is closed one) + */ + if (mInPoint.size() != mOutPoint.size() || + mInPoint.size() != mVertices.size()) { + mResult.clear(); + } else { + auto size = mVertices.size(); + mResult.push_back(mVertices[0]); + for (size_t i = 1; i < size; i++) { + mResult.push_back( + mVertices[i - 1] + + mOutPoint[i - 1]); // CP1 = start + outTangent + mResult.push_back(mVertices[i] + + mInPoint[i]); // CP2 = end + inTangent + mResult.push_back(mVertices[i]); // end point + } + + if (mClosed) { + mResult.push_back( + mVertices[size - 1] + + mOutPoint[size - 1]); // CP1 = start + outTangent + mResult.push_back(mVertices[0] + + mInPoint[0]); // CP2 = end + inTangent + mResult.push_back(mVertices[0]); // end point + } + } + } + void reset() + { + mInPoint.clear(); + mOutPoint.clear(); + mVertices.clear(); + mResult.clear(); + mClosed = false; + } + void updatePath(VPath &out) + { + if (mResult.empty()) return; + + auto size = mResult.size(); + auto points = mResult.data(); + /* reserve exact memory requirement at once + * ptSize = size + 1(size + close) + * elmSize = size/3 cubic + 1 move + 1 close + */ + out.reserve(size + 1, size / 3 + 2); + out.moveTo(points[0]); + for (size_t i = 1; i < size; i += 3) { + out.cubicTo(points[i], points[i + 1], points[i + 2]); + } + if (mClosed) out.close(); + } + } mPathInfo; + +protected: + std::unordered_map<std::string, VInterpolator *> mInterpolatorCache; + std::shared_ptr<model::Composition> mComposition; + model::Composition * compRef{nullptr}; + model::Layer * curLayerRef{nullptr}; + std::vector<model::Layer *> mLayersToUpdate; + std::string mDirPath; + void SkipOut(int depth); +}; + +LookaheadParserHandler::LookaheadParserHandler(char *str) + : v_(), st_(kInit), ss_(str) +{ + r_.IterativeParseInit(); +} + +bool LottieParserImpl::VerifyType() +{ + /* Verify the media type is lottie json. + Could add more strict check. */ + return ParseNext(); +} + +bool LottieParserImpl::ParseNext() +{ + if (r_.HasParseError()) { + st_ = kError; + return false; + } + + if (!r_.IterativeParseNext<parseFlags>(ss_, *this)) { + vCritical << "Lottie file parsing error"; + st_ = kError; + return false; + } + return true; +} + +bool LottieParserImpl::EnterObject() +{ + if (st_ != kEnteringObject) { + st_ = kError; + return false; + } + + ParseNext(); + return true; +} + +bool LottieParserImpl::EnterArray() +{ + if (st_ != kEnteringArray) { + st_ = kError; + return false; + } + + ParseNext(); + return true; +} + +const char *LottieParserImpl::NextObjectKey() +{ + if (st_ == kHasKey) { + const char *result = v_.GetString(); + ParseNext(); + return result; + } + + /* SPECIAL CASE + * The parser works with a prdefined rule that it will be only + * while (NextObjectKey()) for each object but in case of our nested group + * object we can call multiple time NextObjectKey() while exiting the object + * so ignore those and don't put parser in the error state. + * */ + if (st_ == kExitingArray || st_ == kEnteringObject) { + // #ifdef DEBUG_PARSER + // vDebug<<"Object: Exiting nested loop"; + // #endif + return nullptr; + } + + if (st_ != kExitingObject) { + st_ = kError; + return nullptr; + } + + ParseNext(); + return nullptr; +} + +bool LottieParserImpl::NextArrayValue() +{ + if (st_ == kExitingArray) { + ParseNext(); + return false; + } + + /* SPECIAL CASE + * same as NextObjectKey() + */ + if (st_ == kExitingObject) { + return false; + } + + if (st_ == kError || st_ == kHasKey) { + st_ = kError; + return false; + } + + return true; +} + +int LottieParserImpl::GetInt() +{ + if (st_ != kHasNumber || !v_.IsInt()) { + st_ = kError; + return 0; + } + + int result = v_.GetInt(); + ParseNext(); + return result; +} + +double LottieParserImpl::GetDouble() +{ + if (st_ != kHasNumber) { + st_ = kError; + return 0.; + } + + double result = v_.GetDouble(); + ParseNext(); + return result; +} + +bool LottieParserImpl::GetBool() +{ + if (st_ != kHasBool) { + st_ = kError; + return false; + } + + bool result = v_.GetBool(); + ParseNext(); + return result; +} + +void LottieParserImpl::GetNull() +{ + if (st_ != kHasNull) { + st_ = kError; + return; + } + + ParseNext(); +} + +const char *LottieParserImpl::GetString() +{ + if (st_ != kHasString) { + st_ = kError; + return nullptr; + } + + const char *result = v_.GetString(); + ParseNext(); + return result; +} + +std::string LottieParserImpl::GetStringObject() +{ + auto str = GetString(); + + if (str) { + return std::string(str); + } + + return {}; +} + +void LottieParserImpl::SkipOut(int depth) +{ + do { + if (st_ == kEnteringArray || st_ == kEnteringObject) { + ++depth; + } else if (st_ == kExitingArray || st_ == kExitingObject) { + --depth; + } else if (st_ == kError) { + return; + } + + ParseNext(); + } while (depth > 0); +} + +void LottieParserImpl::SkipValue() +{ + SkipOut(0); +} + +void LottieParserImpl::SkipArray() +{ + SkipOut(1); +} + +void LottieParserImpl::SkipObject() +{ + SkipOut(1); +} + +Value *LottieParserImpl::PeekValue() +{ + if (st_ >= kHasNull && st_ <= kHasKey) { + return &v_; + } + + return nullptr; +} + +// returns a rapidjson::Type, or -1 for no value (at end of +// object/array) +int LottieParserImpl::PeekType() const +{ + if (st_ >= kHasNull && st_ <= kHasKey) { + return v_.GetType(); + } + + if (st_ == kEnteringArray) { + return kArrayType; + } + + if (st_ == kEnteringObject) { + return kObjectType; + } + + return -1; +} + +void LottieParserImpl::Skip(const char * /*key*/) +{ + if (PeekType() == kArrayType) { + EnterArray(); + SkipArray(); + } else if (PeekType() == kObjectType) { + EnterObject(); + SkipObject(); + } else { + SkipValue(); + } +} + +model::BlendMode LottieParserImpl::getBlendMode() +{ + auto mode = model::BlendMode::Normal; + + switch (GetInt()) { + case 1: + mode = model::BlendMode::Multiply; + break; + case 2: + mode = model::BlendMode::Screen; + break; + case 3: + mode = model::BlendMode::OverLay; + break; + default: + break; + } + return mode; +} + +void LottieParserImpl::resolveLayerRefs() +{ + for (const auto &layer : mLayersToUpdate) { + auto search = compRef->mAssets.find(layer->extra()->mPreCompRefId); + if (search != compRef->mAssets.end()) { + if (layer->mLayerType == model::Layer::Type::Image) { + layer->extra()->mAsset = search->second; + } else if (layer->mLayerType == model::Layer::Type::Precomp) { + layer->mChildren = search->second->mLayers; + layer->setStatic(layer->isStatic() && + search->second->isStatic()); + } + } + } +} + +void LottieParserImpl::parseComposition() +{ + EnterObject(); + std::shared_ptr<model::Composition> sharedComposition = + std::make_shared<model::Composition>(); + model::Composition *comp = sharedComposition.get(); + compRef = comp; + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "v")) { + comp->mVersion = GetStringObject(); + } else if (0 == strcmp(key, "w")) { + comp->mSize.setWidth(GetInt()); + } else if (0 == strcmp(key, "h")) { + comp->mSize.setHeight(GetInt()); + } else if (0 == strcmp(key, "ip")) { + comp->mStartFrame = GetDouble(); + } else if (0 == strcmp(key, "op")) { + comp->mEndFrame = GetDouble(); + } else if (0 == strcmp(key, "fr")) { + comp->mFrameRate = GetDouble(); + } else if (0 == strcmp(key, "assets")) { + parseAssets(comp); + } else if (0 == strcmp(key, "layers")) { + parseLayers(comp); + } else if (0 == strcmp(key, "markers")) { + parseMarkers(); + } else { +#ifdef DEBUG_PARSER + vWarning << "Composition Attribute Skipped : " << key; +#endif + Skip(key); + } + } + + if (comp->mVersion.empty() || !comp->mRootLayer) { + // don't have a valid bodymovin header + return; + } + if (comp->mStartFrame > comp->mEndFrame) { + // reveresed animation? missing data? + return; + } + if (!IsValid()) { + return; + } + + resolveLayerRefs(); + comp->setStatic(comp->mRootLayer->isStatic()); + comp->mRootLayer->mInFrame = comp->mStartFrame; + comp->mRootLayer->mOutFrame = comp->mEndFrame; + + mComposition = sharedComposition; +} + +void LottieParserImpl::parseMarker() +{ + EnterObject(); + std::string comment; + int timeframe{0}; + int duration{0}; + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "cm")) { + comment = GetStringObject(); + } else if (0 == strcmp(key, "tm")) { + timeframe = GetDouble(); + } else if (0 == strcmp(key, "dr")) { + duration = GetDouble(); + + } else { +#ifdef DEBUG_PARSER + vWarning << "Marker Attribute Skipped : " << key; +#endif + Skip(key); + } + } + compRef->mMarkers.emplace_back(std::move(comment), timeframe, + timeframe + duration); +} + +void LottieParserImpl::parseMarkers() +{ + EnterArray(); + while (NextArrayValue()) { + parseMarker(); + } + // update the precomp layers with the actual layer object +} + +void LottieParserImpl::parseAssets(model::Composition *composition) +{ + EnterArray(); + while (NextArrayValue()) { + auto asset = parseAsset(); + composition->mAssets[asset->mRefId] = asset; + } + // update the precomp layers with the actual layer object +} + +static constexpr const unsigned char B64index[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 62, 63, 62, 62, 63, 52, 53, 54, 55, 56, 57, + 58, 59, 60, 61, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, + 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 0, 0, 0, 0, 63, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, + 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51}; + +std::string b64decode(const char *data, const size_t len) +{ + auto p = reinterpret_cast<const unsigned char *>(data); + int pad = len > 0 && (len % 4 || p[len - 1] == '='); + const size_t L = ((len + 3) / 4 - pad) * 4; + std::string str(L / 4 * 3 + pad, '\0'); + + for (size_t i = 0, j = 0; i < L; i += 4) { + int n = B64index[p[i]] << 18 | B64index[p[i + 1]] << 12 | + B64index[p[i + 2]] << 6 | B64index[p[i + 3]]; + str[j++] = n >> 16; + str[j++] = n >> 8 & 0xFF; + str[j++] = n & 0xFF; + } + if (pad) { + int n = B64index[p[L]] << 18 | B64index[p[L + 1]] << 12; + str[str.size() - 1] = n >> 16; + + if (len > L + 2 && p[L + 2] != '=') { + n |= B64index[p[L + 2]] << 6; + str.push_back(n >> 8 & 0xFF); + } + } + return str; +} + +static std::string convertFromBase64(const std::string &str) +{ + // usual header look like "data:image/png;base64," + // so need to skip till ','. + size_t startIndex = str.find(",", 0); + startIndex += 1; // skip "," + size_t length = str.length() - startIndex; + + const char *b64Data = str.c_str() + startIndex; + + return b64decode(b64Data, length); +} + +/* + * std::to_string() function is missing in VS2017 + * so this is workaround for windows build + */ +#include <sstream> +template <class T> +static std::string toString(const T &value) +{ + std::ostringstream os; + os << value; + return os.str(); +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/layers/shape.json + * + */ +model::Asset *LottieParserImpl::parseAsset() +{ + auto asset = allocator().make<model::Asset>(); + std::string filename; + std::string relativePath; + bool embededResource = false; + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "w")) { + asset->mWidth = GetInt(); + } else if (0 == strcmp(key, "h")) { + asset->mHeight = GetInt(); + } else if (0 == strcmp(key, "p")) { /* image name */ + asset->mAssetType = model::Asset::Type::Image; + filename = GetStringObject(); + } else if (0 == strcmp(key, "u")) { /* relative image path */ + relativePath = GetStringObject(); + } else if (0 == strcmp(key, "e")) { /* relative image path */ + embededResource = GetInt(); + } else if (0 == strcmp(key, "id")) { /* reference id*/ + if (PeekType() == kStringType) { + asset->mRefId = GetStringObject(); + } else { + asset->mRefId = toString(GetInt()); + } + } else if (0 == strcmp(key, "layers")) { + asset->mAssetType = model::Asset::Type::Precomp; + EnterArray(); + bool staticFlag = true; + while (NextArrayValue()) { + auto layer = parseLayer(); + if (layer) { + staticFlag = staticFlag && layer->isStatic(); + asset->mLayers.push_back(layer); + } + } + asset->setStatic(staticFlag); + } else { +#ifdef DEBUG_PARSER + vWarning << "Asset Attribute Skipped : " << key; +#endif + Skip(key); + } + } + + if (asset->mAssetType == model::Asset::Type::Image) { + if (embededResource) { + // embeder resource should start with "data:" + if (filename.compare(0, 5, "data:") == 0) { + asset->loadImageData(convertFromBase64(filename)); + } + } else { + asset->loadImagePath(mDirPath + relativePath + filename); + } + } + + return asset; +} + +void LottieParserImpl::parseLayers(model::Composition *comp) +{ + comp->mRootLayer = allocator().make<model::Layer>(); + comp->mRootLayer->mLayerType = model::Layer::Type::Precomp; + comp->mRootLayer->setName("__"); + bool staticFlag = true; + EnterArray(); + while (NextArrayValue()) { + auto layer = parseLayer(); + if (layer) { + staticFlag = staticFlag && layer->isStatic(); + comp->mRootLayer->mChildren.push_back(layer); + } + } + comp->mRootLayer->setStatic(staticFlag); +} + +model::Color LottieParserImpl::toColor(const char *str) +{ + if (!str) return {}; + + model::Color color; + auto len = strlen(str); + + // some resource has empty color string + // return a default color for those cases. + if (len != 7 || str[0] != '#') return color; + + char tmp[3] = {'\0', '\0', '\0'}; + tmp[0] = str[1]; + tmp[1] = str[2]; + color.r = std::strtol(tmp, nullptr, 16) / 255.0f; + + tmp[0] = str[3]; + tmp[1] = str[4]; + color.g = std::strtol(tmp, nullptr, 16) / 255.0f; + + tmp[0] = str[5]; + tmp[1] = str[6]; + color.b = std::strtol(tmp, nullptr, 16) / 255.0f; + + return color; +} + +model::MatteType LottieParserImpl::getMatteType() +{ + switch (GetInt()) { + case 1: + return model::MatteType::Alpha; + break; + case 2: + return model::MatteType::AlphaInv; + break; + case 3: + return model::MatteType::Luma; + break; + case 4: + return model::MatteType::LumaInv; + break; + default: + return model::MatteType::None; + break; + } +} + +model::Layer::Type LottieParserImpl::getLayerType() +{ + switch (GetInt()) { + case 0: + return model::Layer::Type::Precomp; + break; + case 1: + return model::Layer::Type::Solid; + break; + case 2: + return model::Layer::Type::Image; + break; + case 3: + return model::Layer::Type::Null; + break; + case 4: + return model::Layer::Type::Shape; + break; + case 5: + return model::Layer::Type::Text; + break; + default: + return model::Layer::Type::Null; + break; + } +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/layers/shape.json + * + */ +model::Layer *LottieParserImpl::parseLayer() +{ + model::Layer *layer = allocator().make<model::Layer>(); + curLayerRef = layer; + bool ddd = true; + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "ty")) { /* Type of layer*/ + layer->mLayerType = getLayerType(); + } else if (0 == strcmp(key, "nm")) { /*Layer name*/ + layer->setName(GetString()); + } else if (0 == strcmp(key, "ind")) { /*Layer index in AE. Used for + parenting and expressions.*/ + layer->mId = GetInt(); + } else if (0 == strcmp(key, "ddd")) { /*3d layer */ + ddd = GetInt(); + } else if (0 == + strcmp(key, + "parent")) { /*Layer Parent. Uses "ind" of parent.*/ + layer->mParentId = GetInt(); + } else if (0 == strcmp(key, "refId")) { /*preComp Layer reference id*/ + layer->extra()->mPreCompRefId = GetStringObject(); + layer->mHasGradient = true; + mLayersToUpdate.push_back(layer); + } else if (0 == strcmp(key, "sr")) { // "Layer Time Stretching" + layer->mTimeStreatch = GetDouble(); + } else if (0 == strcmp(key, "tm")) { // time remapping + parseProperty(layer->extra()->mTimeRemap); + } else if (0 == strcmp(key, "ip")) { + layer->mInFrame = std::lround(GetDouble()); + } else if (0 == strcmp(key, "op")) { + layer->mOutFrame = std::lround(GetDouble()); + } else if (0 == strcmp(key, "st")) { + layer->mStartFrame = GetDouble(); + } else if (0 == strcmp(key, "bm")) { + layer->mBlendMode = getBlendMode(); + } else if (0 == strcmp(key, "ks")) { + EnterObject(); + layer->mTransform = parseTransformObject(ddd); + } else if (0 == strcmp(key, "shapes")) { + parseShapesAttr(layer); + } else if (0 == strcmp(key, "w")) { + layer->mLayerSize.setWidth(GetInt()); + } else if (0 == strcmp(key, "h")) { + layer->mLayerSize.setHeight(GetInt()); + } else if (0 == strcmp(key, "sw")) { + layer->mLayerSize.setWidth(GetInt()); + } else if (0 == strcmp(key, "sh")) { + layer->mLayerSize.setHeight(GetInt()); + } else if (0 == strcmp(key, "sc")) { + layer->extra()->mSolidColor = toColor(GetString()); + } else if (0 == strcmp(key, "tt")) { + layer->mMatteType = getMatteType(); + } else if (0 == strcmp(key, "hasMask")) { + layer->mHasMask = GetBool(); + } else if (0 == strcmp(key, "masksProperties")) { + parseMaskProperty(layer); + } else if (0 == strcmp(key, "ao")) { + layer->mAutoOrient = GetInt(); + } else if (0 == strcmp(key, "hd")) { + layer->setHidden(GetBool()); + } else { +#ifdef DEBUG_PARSER + vWarning << "Layer Attribute Skipped : " << key; +#endif + Skip(key); + } + } + + if (!layer->mTransform) { + // not a valid layer + return nullptr; + } + + // make sure layer data is not corrupted. + if (layer->hasParent() && (layer->id() == layer->parentId())) + return nullptr; + + if (layer->mExtra) layer->mExtra->mCompRef = compRef; + + if (layer->hidden()) { + // if layer is hidden, only data that is usefull is its + // transform matrix(when it is a parent of some other layer) + // so force it to be a Null Layer and release all resource. + layer->setStatic(layer->mTransform->isStatic()); + layer->mLayerType = model::Layer::Type::Null; + layer->mChildren = {}; + return layer; + } + + // update the static property of layer + bool staticFlag = true; + for (const auto &child : layer->mChildren) { + staticFlag &= child->isStatic(); + } + + if (layer->hasMask() && layer->mExtra) { + for (const auto &mask : layer->mExtra->mMasks) { + staticFlag &= mask->isStatic(); + } + } + + layer->setStatic(staticFlag && layer->mTransform->isStatic()); + + return layer; +} + +void LottieParserImpl::parseMaskProperty(model::Layer *layer) +{ + EnterArray(); + while (NextArrayValue()) { + layer->extra()->mMasks.push_back(parseMaskObject()); + } +} + +model::Mask *LottieParserImpl::parseMaskObject() +{ + auto obj = allocator().make<model::Mask>(); + + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "inv")) { + obj->mInv = GetBool(); + } else if (0 == strcmp(key, "mode")) { + const char *str = GetString(); + if (!str) { + obj->mMode = model::Mask::Mode::None; + continue; + } + switch (str[0]) { + case 'n': + obj->mMode = model::Mask::Mode::None; + break; + case 'a': + obj->mMode = model::Mask::Mode::Add; + break; + case 's': + obj->mMode = model::Mask::Mode::Substarct; + break; + case 'i': + obj->mMode = model::Mask::Mode::Intersect; + break; + case 'f': + obj->mMode = model::Mask::Mode::Difference; + break; + default: + obj->mMode = model::Mask::Mode::None; + break; + } + } else if (0 == strcmp(key, "pt")) { + parseShapeProperty(obj->mShape); + } else if (0 == strcmp(key, "o")) { + parseProperty(obj->mOpacity); + } else { + Skip(key); + } + } + obj->mIsStatic = obj->mShape.isStatic() && obj->mOpacity.isStatic(); + return obj; +} + +void LottieParserImpl::parseShapesAttr(model::Layer *layer) +{ + EnterArray(); + while (NextArrayValue()) { + parseObject(layer); + } +} + +model::Object *LottieParserImpl::parseObjectTypeAttr() +{ + const char *type = GetString(); + if (0 == strcmp(type, "gr")) { + return parseGroupObject(); + } else if (0 == strcmp(type, "rc")) { + return parseRectObject(); + } else if (0 == strcmp(type, "rd")) { + curLayerRef->mHasRoundedCorner = true; + return parseRoundedCorner(); + } else if (0 == strcmp(type, "el")) { + return parseEllipseObject(); + } else if (0 == strcmp(type, "tr")) { + return parseTransformObject(); + } else if (0 == strcmp(type, "fl")) { + return parseFillObject(); + } else if (0 == strcmp(type, "st")) { + return parseStrokeObject(); + } else if (0 == strcmp(type, "gf")) { + curLayerRef->mHasGradient = true; + return parseGFillObject(); + } else if (0 == strcmp(type, "gs")) { + curLayerRef->mHasGradient = true; + return parseGStrokeObject(); + } else if (0 == strcmp(type, "sh")) { + return parseShapeObject(); + } else if (0 == strcmp(type, "sr")) { + return parsePolystarObject(); + } else if (0 == strcmp(type, "tm")) { + curLayerRef->mHasPathOperator = true; + return parseTrimObject(); + } else if (0 == strcmp(type, "rp")) { + curLayerRef->mHasRepeater = true; + return parseReapeaterObject(); + } else if (0 == strcmp(type, "mm")) { + vWarning << "Merge Path is not supported yet"; + return nullptr; + } else { +#ifdef DEBUG_PARSER + vDebug << "The Object Type not yet handled = " << type; +#endif + return nullptr; + } +} + +void LottieParserImpl::parseObject(model::Group *parent) +{ + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "ty")) { + auto child = parseObjectTypeAttr(); + if (child && !child->hidden()) { + if (child->type() == model::Object::Type::RoundedCorner) { + updateRoundedCorner(parent, static_cast<model::RoundedCorner *>(child)); + } + parent->mChildren.push_back(child); + } + } else { + Skip(key); + } + } +} + +void LottieParserImpl::updateRoundedCorner(model::Group *group, model::RoundedCorner *rc) +{ + for(auto &e : group->mChildren) + { + if (e->type() == model::Object::Type::Rect) { + static_cast<model::Rect *>(e)->mRoundedCorner = rc; + if (!rc->isStatic()) { + e->setStatic(false); + group->setStatic(false); + //@TODO need to propagate. + } + } else if ( e->type() == model::Object::Type::Group) { + updateRoundedCorner(static_cast<model::Group *>(e), rc); + } + } +} + +model::Object *LottieParserImpl::parseGroupObject() +{ + auto group = allocator().make<model::Group>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + group->setName(GetString()); + } else if (0 == strcmp(key, "it")) { + EnterArray(); + while (NextArrayValue()) { + parseObject(group); + } + if (!group->mChildren.empty() + && group->mChildren.back()->type() + == model::Object::Type::Transform) { + group->mTransform = + static_cast<model::Transform *>(group->mChildren.back()); + group->mChildren.pop_back(); + } + } else { + Skip(key); + } + } + bool staticFlag = true; + for (const auto &child : group->mChildren) { + staticFlag &= child->isStatic(); + } + + if (group->mTransform) { + group->setStatic(staticFlag && group->mTransform->isStatic()); + } + + return group; +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/rect.json + */ +model::Rect *LottieParserImpl::parseRectObject() +{ + auto obj = allocator().make<model::Rect>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "p")) { + parseProperty(obj->mPos); + } else if (0 == strcmp(key, "s")) { + parseProperty(obj->mSize); + } else if (0 == strcmp(key, "r")) { + parseProperty(obj->mRound); + } else if (0 == strcmp(key, "d")) { + obj->mDirection = GetInt(); + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { + Skip(key); + } + } + obj->setStatic(obj->mPos.isStatic() && obj->mSize.isStatic() && + obj->mRound.isStatic()); + return obj; +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/rect.json + */ +model::RoundedCorner *LottieParserImpl::parseRoundedCorner() +{ + auto obj = allocator().make<model::RoundedCorner>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "r")) { + parseProperty(obj->mRadius); + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { + Skip(key); + } + } + obj->setStatic(obj->mRadius.isStatic()); + return obj; +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/ellipse.json + */ +model::Ellipse *LottieParserImpl::parseEllipseObject() +{ + auto obj = allocator().make<model::Ellipse>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "p")) { + parseProperty(obj->mPos); + } else if (0 == strcmp(key, "s")) { + parseProperty(obj->mSize); + } else if (0 == strcmp(key, "d")) { + obj->mDirection = GetInt(); + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { + Skip(key); + } + } + obj->setStatic(obj->mPos.isStatic() && obj->mSize.isStatic()); + return obj; +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/shape.json + */ +model::Path *LottieParserImpl::parseShapeObject() +{ + auto obj = allocator().make<model::Path>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "ks")) { + parseShapeProperty(obj->mShape); + } else if (0 == strcmp(key, "d")) { + obj->mDirection = GetInt(); + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { +#ifdef DEBUG_PARSER + vDebug << "Shape property ignored :" << key; +#endif + Skip(key); + } + } + obj->setStatic(obj->mShape.isStatic()); + + return obj; +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/star.json + */ +model::Polystar *LottieParserImpl::parsePolystarObject() +{ + auto obj = allocator().make<model::Polystar>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "p")) { + parseProperty(obj->mPos); + } else if (0 == strcmp(key, "pt")) { + parseProperty(obj->mPointCount); + } else if (0 == strcmp(key, "ir")) { + parseProperty(obj->mInnerRadius); + } else if (0 == strcmp(key, "is")) { + parseProperty(obj->mInnerRoundness); + } else if (0 == strcmp(key, "or")) { + parseProperty(obj->mOuterRadius); + } else if (0 == strcmp(key, "os")) { + parseProperty(obj->mOuterRoundness); + } else if (0 == strcmp(key, "r")) { + parseProperty(obj->mRotation); + } else if (0 == strcmp(key, "sy")) { + int starType = GetInt(); + if (starType == 1) obj->mPolyType = model::Polystar::PolyType::Star; + if (starType == 2) + obj->mPolyType = model::Polystar::PolyType::Polygon; + } else if (0 == strcmp(key, "d")) { + obj->mDirection = GetInt(); + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { +#ifdef DEBUG_PARSER + vDebug << "Polystar property ignored :" << key; +#endif + Skip(key); + } + } + obj->setStatic( + obj->mPos.isStatic() && obj->mPointCount.isStatic() && + obj->mInnerRadius.isStatic() && obj->mInnerRoundness.isStatic() && + obj->mOuterRadius.isStatic() && obj->mOuterRoundness.isStatic() && + obj->mRotation.isStatic()); + + return obj; +} + +model::Trim::TrimType LottieParserImpl::getTrimType() +{ + switch (GetInt()) { + case 1: + return model::Trim::TrimType::Simultaneously; + break; + case 2: + return model::Trim::TrimType::Individually; + break; + default: + Error(); + return model::Trim::TrimType::Simultaneously; + break; + } +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/trim.json + */ +model::Trim *LottieParserImpl::parseTrimObject() +{ + auto obj = allocator().make<model::Trim>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "s")) { + parseProperty(obj->mStart); + } else if (0 == strcmp(key, "e")) { + parseProperty(obj->mEnd); + } else if (0 == strcmp(key, "o")) { + parseProperty(obj->mOffset); + } else if (0 == strcmp(key, "m")) { + obj->mTrimType = getTrimType(); + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { +#ifdef DEBUG_PARSER + vDebug << "Trim property ignored :" << key; +#endif + Skip(key); + } + } + obj->setStatic(obj->mStart.isStatic() && obj->mEnd.isStatic() && + obj->mOffset.isStatic()); + return obj; +} + +void LottieParserImpl::getValue(model::Repeater::Transform &obj) +{ + EnterObject(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "a")) { + parseProperty(obj.mAnchor); + } else if (0 == strcmp(key, "p")) { + parseProperty(obj.mPosition); + } else if (0 == strcmp(key, "r")) { + parseProperty(obj.mRotation); + } else if (0 == strcmp(key, "s")) { + parseProperty(obj.mScale); + } else if (0 == strcmp(key, "so")) { + parseProperty(obj.mStartOpacity); + } else if (0 == strcmp(key, "eo")) { + parseProperty(obj.mEndOpacity); + } else { + Skip(key); + } + } +} + +model::Repeater *LottieParserImpl::parseReapeaterObject() +{ + auto obj = allocator().make<model::Repeater>(); + + obj->setContent(allocator().make<model::Group>()); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "c")) { + parseProperty(obj->mCopies); + float maxCopy = 0.0; + if (!obj->mCopies.isStatic()) { + for (auto &keyFrame : obj->mCopies.animation().frames_) { + if (maxCopy < keyFrame.value_.start_) + maxCopy = keyFrame.value_.start_; + if (maxCopy < keyFrame.value_.end_) + maxCopy = keyFrame.value_.end_; + } + } else { + maxCopy = obj->mCopies.value(); + } + obj->mMaxCopies = maxCopy; + } else if (0 == strcmp(key, "o")) { + parseProperty(obj->mOffset); + } else if (0 == strcmp(key, "tr")) { + getValue(obj->mTransform); + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { +#ifdef DEBUG_PARSER + vDebug << "Repeater property ignored :" << key; +#endif + Skip(key); + } + } + obj->setStatic(obj->mCopies.isStatic() && obj->mOffset.isStatic() && + obj->mTransform.isStatic()); + + return obj; +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/transform.json + */ +model::Transform *LottieParserImpl::parseTransformObject(bool ddd) +{ + auto objT = allocator().make<model::Transform>(); + + auto obj = allocator().make<model::Transform::Data>(); + if (ddd) { + obj->createExtraData(); + obj->mExtra->m3DData = true; + } + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + objT->setName(GetString()); + } else if (0 == strcmp(key, "a")) { + parseProperty(obj->mAnchor); + } else if (0 == strcmp(key, "p")) { + EnterObject(); + bool separate = false; + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "k")) { + parsePropertyHelper(obj->mPosition); + } else if (0 == strcmp(key, "s")) { + obj->createExtraData(); + obj->mExtra->mSeparate = GetBool(); + separate = true; + } else if (separate && (0 == strcmp(key, "x"))) { + parseProperty(obj->mExtra->mSeparateX); + } else if (separate && (0 == strcmp(key, "y"))) { + parseProperty(obj->mExtra->mSeparateY); + } else { + Skip(key); + } + } + } else if (0 == strcmp(key, "r")) { + parseProperty(obj->mRotation); + } else if (0 == strcmp(key, "s")) { + parseProperty(obj->mScale); + } else if (0 == strcmp(key, "o")) { + parseProperty(obj->mOpacity); + } else if (0 == strcmp(key, "hd")) { + objT->setHidden(GetBool()); + } else if (0 == strcmp(key, "rx")) { + if (!obj->mExtra) return nullptr; + parseProperty(obj->mExtra->m3DRx); + } else if (0 == strcmp(key, "ry")) { + if (!obj->mExtra) return nullptr; + parseProperty(obj->mExtra->m3DRy); + } else if (0 == strcmp(key, "rz")) { + if (!obj->mExtra) return nullptr; + parseProperty(obj->mExtra->m3DRz); + } else { + Skip(key); + } + } + bool isStatic = obj->mAnchor.isStatic() && obj->mPosition.isStatic() && + obj->mRotation.isStatic() && obj->mScale.isStatic() && + obj->mOpacity.isStatic(); + if (obj->mExtra) { + isStatic = isStatic && obj->mExtra->m3DRx.isStatic() && + obj->mExtra->m3DRy.isStatic() && + obj->mExtra->m3DRz.isStatic() && + obj->mExtra->mSeparateX.isStatic() && + obj->mExtra->mSeparateY.isStatic(); + } + + objT->set(obj, isStatic); + + return objT; +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/fill.json + */ +model::Fill *LottieParserImpl::parseFillObject() +{ + auto obj = allocator().make<model::Fill>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "c")) { + parseProperty(obj->mColor); + } else if (0 == strcmp(key, "o")) { + parseProperty(obj->mOpacity); + } else if (0 == strcmp(key, "fillEnabled")) { + obj->mEnabled = GetBool(); + } else if (0 == strcmp(key, "r")) { + obj->mFillRule = getFillRule(); + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { +#ifdef DEBUG_PARSER + vWarning << "Fill property skipped = " << key; +#endif + Skip(key); + } + } + obj->setStatic(obj->mColor.isStatic() && obj->mOpacity.isStatic()); + + return obj; +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/helpers/lineCap.json + */ +CapStyle LottieParserImpl::getLineCap() +{ + switch (GetInt()) { + case 1: + return CapStyle::Flat; + break; + case 2: + return CapStyle::Round; + break; + default: + return CapStyle::Square; + break; + } +} + +FillRule LottieParserImpl::getFillRule() +{ + switch (GetInt()) { + case 1: + return FillRule::Winding; + break; + case 2: + return FillRule::EvenOdd; + break; + default: + return FillRule::Winding; + break; + } +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/helpers/lineJoin.json + */ +JoinStyle LottieParserImpl::getLineJoin() +{ + switch (GetInt()) { + case 1: + return JoinStyle::Miter; + break; + case 2: + return JoinStyle::Round; + break; + default: + return JoinStyle::Bevel; + break; + } +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/stroke.json + */ +model::Stroke *LottieParserImpl::parseStrokeObject() +{ + auto obj = allocator().make<model::Stroke>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "c")) { + parseProperty(obj->mColor); + } else if (0 == strcmp(key, "o")) { + parseProperty(obj->mOpacity); + } else if (0 == strcmp(key, "w")) { + parseProperty(obj->mWidth); + } else if (0 == strcmp(key, "fillEnabled")) { + obj->mEnabled = GetBool(); + } else if (0 == strcmp(key, "lc")) { + obj->mCapStyle = getLineCap(); + } else if (0 == strcmp(key, "lj")) { + obj->mJoinStyle = getLineJoin(); + } else if (0 == strcmp(key, "ml")) { + obj->mMiterLimit = GetDouble(); + } else if (0 == strcmp(key, "d")) { + parseDashProperty(obj->mDash); + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { +#ifdef DEBUG_PARSER + vWarning << "Stroke property skipped = " << key; +#endif + Skip(key); + } + } + obj->setStatic(obj->mColor.isStatic() && obj->mOpacity.isStatic() && + obj->mWidth.isStatic() && obj->mDash.isStatic()); + return obj; +} + +void LottieParserImpl::parseGradientProperty(model::Gradient *obj, + const char * key) +{ + if (0 == strcmp(key, "t")) { + obj->mGradientType = GetInt(); + } else if (0 == strcmp(key, "o")) { + parseProperty(obj->mOpacity); + } else if (0 == strcmp(key, "s")) { + parseProperty(obj->mStartPoint); + } else if (0 == strcmp(key, "e")) { + parseProperty(obj->mEndPoint); + } else if (0 == strcmp(key, "h")) { + parseProperty(obj->mHighlightLength); + } else if (0 == strcmp(key, "a")) { + parseProperty(obj->mHighlightAngle); + } else if (0 == strcmp(key, "g")) { + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "k")) { + parseProperty(obj->mGradient); + } else if (0 == strcmp(key, "p")) { + obj->mColorPoints = GetInt(); + } else { + Skip(nullptr); + } + } + } else if (0 == strcmp(key, "hd")) { + obj->setHidden(GetBool()); + } else { +#ifdef DEBUG_PARSER + vWarning << "Gradient property skipped = " << key; +#endif + Skip(key); + } + obj->setStatic( + obj->mOpacity.isStatic() && obj->mStartPoint.isStatic() && + obj->mEndPoint.isStatic() && obj->mHighlightAngle.isStatic() && + obj->mHighlightLength.isStatic() && obj->mGradient.isStatic()); +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/gfill.json + */ +model::GradientFill *LottieParserImpl::parseGFillObject() +{ + auto obj = allocator().make<model::GradientFill>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "r")) { + obj->mFillRule = getFillRule(); + } else { + parseGradientProperty(obj, key); + } + } + return obj; +} + +void LottieParserImpl::parseDashProperty(model::Dash &dash) +{ + EnterArray(); + while (NextArrayValue()) { + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "v")) { + dash.mData.emplace_back(); + parseProperty(dash.mData.back()); + } else { + Skip(key); + } + } + } +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/gstroke.json + */ +model::GradientStroke *LottieParserImpl::parseGStrokeObject() +{ + auto obj = allocator().make<model::GradientStroke>(); + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "nm")) { + obj->setName(GetString()); + } else if (0 == strcmp(key, "w")) { + parseProperty(obj->mWidth); + } else if (0 == strcmp(key, "lc")) { + obj->mCapStyle = getLineCap(); + } else if (0 == strcmp(key, "lj")) { + obj->mJoinStyle = getLineJoin(); + } else if (0 == strcmp(key, "ml")) { + obj->mMiterLimit = GetDouble(); + } else if (0 == strcmp(key, "d")) { + parseDashProperty(obj->mDash); + } else { + parseGradientProperty(obj, key); + } + } + + obj->setStatic(obj->isStatic() && obj->mWidth.isStatic() && + obj->mDash.isStatic()); + return obj; +} + +void LottieParserImpl::getValue(std::vector<VPointF> &v) +{ + EnterArray(); + while (NextArrayValue()) { + EnterArray(); + VPointF pt; + getValue(pt); + v.push_back(pt); + } +} + +void LottieParserImpl::getValue(VPointF &pt) +{ + float val[4] = {0.f}; + int i = 0; + + if (PeekType() == kArrayType) EnterArray(); + + while (NextArrayValue()) { + const auto value = GetDouble(); + if (i < 4) { + val[i++] = value; + } + } + pt.setX(val[0]); + pt.setY(val[1]); +} + +void LottieParserImpl::getValue(float &val) +{ + if (PeekType() == kArrayType) { + EnterArray(); + if (NextArrayValue()) val = GetDouble(); + // discard rest + while (NextArrayValue()) { + GetDouble(); + } + } else if (PeekType() == kNumberType) { + val = GetDouble(); + } else { + Error(); + } +} + +void LottieParserImpl::getValue(model::Color &color) +{ + float val[4] = {0.f}; + int i = 0; + if (PeekType() == kArrayType) EnterArray(); + + while (NextArrayValue()) { + const auto value = GetDouble(); + if (i < 4) { + val[i++] = value; + } + } + + if (mColorFilter) mColorFilter(val[0], val[1], val[2]); + + color.r = val[0]; + color.g = val[1]; + color.b = val[2]; +} + +void LottieParserImpl::getValue(model::Gradient::Data &grad) +{ + if (PeekType() == kArrayType) EnterArray(); + + while (NextArrayValue()) { + grad.mGradient.push_back(GetDouble()); + } +} + +void LottieParserImpl::getValue(int &val) +{ + if (PeekType() == kArrayType) { + EnterArray(); + while (NextArrayValue()) { + val = GetInt(); + } + } else if (PeekType() == kNumberType) { + val = GetInt(); + } else { + Error(); + } +} + +void LottieParserImpl::parsePathInfo() +{ + mPathInfo.reset(); + + /* + * The shape object could be wrapped by a array + * if its part of the keyframe object + */ + bool arrayWrapper = (PeekType() == kArrayType); + if (arrayWrapper) EnterArray(); + + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "i")) { + getValue(mPathInfo.mInPoint); + } else if (0 == strcmp(key, "o")) { + getValue(mPathInfo.mOutPoint); + } else if (0 == strcmp(key, "v")) { + getValue(mPathInfo.mVertices); + } else if (0 == strcmp(key, "c")) { + mPathInfo.mClosed = GetBool(); + } else { + Error(); + Skip(nullptr); + } + } + // exit properly from the array + if (arrayWrapper) NextArrayValue(); + + mPathInfo.convert(); +} + +void LottieParserImpl::getValue(model::PathData &obj) +{ + parsePathInfo(); + obj.mPoints = mPathInfo.mResult; + obj.mClosed = mPathInfo.mClosed; +} + +VPointF LottieParserImpl::parseInperpolatorPoint() +{ + VPointF cp; + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "x")) { + getValue(cp.rx()); + } + if (0 == strcmp(key, "y")) { + getValue(cp.ry()); + } + } + return cp; +} + +template <typename T> +bool LottieParserImpl::parseKeyFrameValue( + const char *key, model::Value<T, model::Position> &value) +{ + if (0 == strcmp(key, "ti")) { + value.hasTangent_ = true; + getValue(value.inTangent_); + } else if (0 == strcmp(key, "to")) { + value.hasTangent_ = true; + getValue(value.outTangent_); + } else { + return false; + } + return true; +} + +VInterpolator *LottieParserImpl::interpolator(VPointF inTangent, + VPointF outTangent, + std::string key) +{ + if (key.empty()) { + std::array<char, 20> temp; + snprintf(temp.data(), temp.size(), "%.2f_%.2f_%.2f_%.2f", inTangent.x(), + inTangent.y(), outTangent.x(), outTangent.y()); + key = temp.data(); + } + + auto search = mInterpolatorCache.find(key); + + if (search != mInterpolatorCache.end()) { + return search->second; + } + + auto obj = allocator().make<VInterpolator>(outTangent, inTangent); + mInterpolatorCache[std::move(key)] = obj; + return obj; +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/properties/multiDimensionalKeyframed.json + */ +template <typename T, typename Tag> +void LottieParserImpl::parseKeyFrame(model::KeyFrames<T, Tag> &obj) +{ + struct ParsedField { + std::string interpolatorKey; + bool interpolator{false}; + bool value{false}; + bool hold{false}; + bool noEndValue{true}; + }; + + EnterObject(); + ParsedField parsed; + typename model::KeyFrames<T, Tag>::Frame keyframe; + VPointF inTangent; + VPointF outTangent; + + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "i")) { + parsed.interpolator = true; + inTangent = parseInperpolatorPoint(); + } else if (0 == strcmp(key, "o")) { + outTangent = parseInperpolatorPoint(); + } else if (0 == strcmp(key, "t")) { + keyframe.start_ = GetDouble(); + } else if (0 == strcmp(key, "s")) { + parsed.value = true; + getValue(keyframe.value_.start_); + continue; + } else if (0 == strcmp(key, "e")) { + parsed.noEndValue = false; + getValue(keyframe.value_.end_); + continue; + } else if (0 == strcmp(key, "n")) { + if (PeekType() == kStringType) { + parsed.interpolatorKey = GetStringObject(); + } else { + EnterArray(); + while (NextArrayValue()) { + if (parsed.interpolatorKey.empty()) { + parsed.interpolatorKey = GetStringObject(); + } else { + // skip rest of the string + Skip(nullptr); + } + } + } + continue; + } else if (parseKeyFrameValue(key, keyframe.value_)) { + continue; + } else if (0 == strcmp(key, "h")) { + parsed.hold = GetInt(); + continue; + } else { +#ifdef DEBUG_PARSER + vDebug << "key frame property skipped = " << key; +#endif + Skip(key); + } + } + + auto &list = obj.frames_; + if (!list.empty()) { + // update the endFrame value of current keyframe + list.back().end_ = keyframe.start_; + // if no end value provided, copy start value to previous frame + if (parsed.value && parsed.noEndValue) { + list.back().value_.end_ = keyframe.value_.start_; + } + } + + if (parsed.hold) { + keyframe.value_.end_ = keyframe.value_.start_; + keyframe.end_ = keyframe.start_; + list.push_back(std::move(keyframe)); + } else if (parsed.interpolator) { + keyframe.interpolator_ = interpolator( + inTangent, outTangent, std::move(parsed.interpolatorKey)); + list.push_back(std::move(keyframe)); + } else { + // its the last frame discard. + } +} + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/properties/shapeKeyframed.json + */ + +/* + * https://github.com/airbnb/lottie-web/blob/master/docs/json/properties/shape.json + */ +void LottieParserImpl::parseShapeProperty(model::Property<model::PathData> &obj) +{ + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "k")) { + if (PeekType() == kArrayType) { + EnterArray(); + while (NextArrayValue()) { + parseKeyFrame(obj.animation()); + } + } else { + if (!obj.isStatic()) { + st_ = kError; + return; + } + getValue(obj.value()); + } + } else { +#ifdef DEBUG_PARSER + vDebug << "shape property ignored = " << key; +#endif + Skip(nullptr); + } + } + obj.cache(); +} + +template <typename T, typename Tag> +void LottieParserImpl::parsePropertyHelper(model::Property<T, Tag> &obj) +{ + if (PeekType() == kNumberType) { + if (!obj.isStatic()) { + st_ = kError; + return; + } + /*single value property with no animation*/ + getValue(obj.value()); + } else { + EnterArray(); + while (NextArrayValue()) { + /* property with keyframe info*/ + if (PeekType() == kObjectType) { + parseKeyFrame(obj.animation()); + } else { + /* Read before modifying. + * as there is no way of knowing if the + * value of the array is either array of numbers + * or array of object without entering the array + * thats why this hack is there + */ + if (!obj.isStatic()) { + st_ = kError; + return; + } + /*multi value property with no animation*/ + getValue(obj.value()); + /*break here as we already reached end of array*/ + break; + } + } + obj.cache(); + } +} + +/* + * https://github.com/airbnb/lottie-web/tree/master/docs/json/properties + */ +template <typename T> +void LottieParserImpl::parseProperty(model::Property<T> &obj) +{ + EnterObject(); + while (const char *key = NextObjectKey()) { + if (0 == strcmp(key, "k")) { + parsePropertyHelper(obj); + } else { + Skip(key); + } + } +} + +#ifdef LOTTIE_DUMP_TREE_SUPPORT + +class ObjectInspector { +public: + void visit(model::Composition *obj, std::string level) + { + vDebug << " { " << level << "Composition:: a: " << !obj->isStatic() + << ", v: " << obj->mVersion << ", stFm: " << obj->startFrame() + << ", endFm: " << obj->endFrame() + << ", W: " << obj->size().width() + << ", H: " << obj->size().height() << "\n"; + level.append("\t"); + visit(obj->mRootLayer, level); + level.erase(level.end() - 1, level.end()); + vDebug << " } " << level << "Composition End\n"; + } + void visit(model::Layer *obj, std::string level) + { + vDebug << level << "{ " << layerType(obj->mLayerType) + << ", name: " << obj->name() << ", id:" << obj->mId + << " Pid:" << obj->mParentId << ", a:" << !obj->isStatic() + << ", " << matteType(obj->mMatteType) + << ", mask:" << obj->hasMask() << ", inFm:" << obj->mInFrame + << ", outFm:" << obj->mOutFrame << ", stFm:" << obj->mStartFrame + << ", ts:" << obj->mTimeStreatch << ", ao:" << obj->autoOrient() + << ", W:" << obj->layerSize().width() + << ", H:" << obj->layerSize().height(); + + if (obj->mLayerType == model::Layer::Type::Image) + vDebug << level << "\t{ " + << "ImageInfo:" + << " W :" << obj->extra()->mAsset->mWidth + << ", H :" << obj->extra()->mAsset->mHeight << " }" + << "\n"; + else { + vDebug << level; + } + visitChildren(static_cast<model::Group *>(obj), level); + vDebug << level << "} " << layerType(obj->mLayerType).c_str() + << ", id: " << obj->mId << "\n"; + } + void visitChildren(model::Group *obj, std::string level) + { + level.append("\t"); + for (const auto &child : obj->mChildren) visit(child, level); + if (obj->mTransform) visit(obj->mTransform, level); + } + + void visit(model::Object *obj, std::string level) + { + switch (obj->type()) { + case model::Object::Type::Repeater: { + auto r = static_cast<model::Repeater *>(obj); + vDebug << level << "{ Repeater: name: " << obj->name() + << " , a:" << !obj->isStatic() + << ", copies:" << r->maxCopies() + << ", offset:" << r->offset(0); + visitChildren(r->mContent, level); + vDebug << level << "} Repeater"; + break; + } + case model::Object::Type::Group: { + vDebug << level << "{ Group: name: " << obj->name() + << " , a:" << !obj->isStatic(); + visitChildren(static_cast<model::Group *>(obj), level); + vDebug << level << "} Group"; + break; + } + case model::Object::Type::Layer: { + visit(static_cast<model::Layer *>(obj), level); + break; + } + case model::Object::Type::Trim: { + vDebug << level << "{ Trim: name: " << obj->name() + << " , a:" << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::Rect: { + vDebug << level << "{ Rect: name: " << obj->name() + << " , a:" << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::RoundedCorner: { + vDebug << level << "{ RoundedCorner: name: " << obj->name() + << " , a:" << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::Ellipse: { + vDebug << level << "{ Ellipse: name: " << obj->name() + << " , a:" << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::Path: { + vDebug << level << "{ Shape: name: " << obj->name() + << " , a:" << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::Polystar: { + vDebug << level << "{ Polystar: name: " << obj->name() + << " , a:" << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::Transform: { + vDebug << level << "{ Transform: name: " << obj->name() + << " , a: " << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::Stroke: { + vDebug << level << "{ Stroke: name: " << obj->name() + << " , a:" << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::GStroke: { + vDebug << level << "{ GStroke: name: " << obj->name() + << " , a:" << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::Fill: { + vDebug << level << "{ Fill: name: " << obj->name() + << " , a:" << !obj->isStatic() << " }"; + break; + } + case model::Object::Type::GFill: { + auto f = static_cast<model::GradientFill *>(obj); + vDebug << level << "{ GFill: name: " << obj->name() + << " , a:" << !f->isStatic() << ", ty:" << f->mGradientType + << ", s:" << f->mStartPoint.value(0) + << ", e:" << f->mEndPoint.value(0) << " }"; + break; + } + default: + break; + } + } + + std::string matteType(model::MatteType type) + { + switch (type) { + case model::MatteType::None: + return "Matte::None"; + break; + case model::MatteType::Alpha: + return "Matte::Alpha"; + break; + case model::MatteType::AlphaInv: + return "Matte::AlphaInv"; + break; + case model::MatteType::Luma: + return "Matte::Luma"; + break; + case model::MatteType::LumaInv: + return "Matte::LumaInv"; + break; + default: + return "Matte::Unknown"; + break; + } + } + std::string layerType(model::Layer::Type type) + { + switch (type) { + case model::Layer::Type::Precomp: + return "Layer::Precomp"; + break; + case model::Layer::Type::Null: + return "Layer::Null"; + break; + case model::Layer::Type::Shape: + return "Layer::Shape"; + break; + case model::Layer::Type::Solid: + return "Layer::Solid"; + break; + case model::Layer::Type::Image: + return "Layer::Image"; + break; + case model::Layer::Type::Text: + return "Layer::Text"; + break; + default: + return "Layer::Unknown"; + break; + } + } +}; + +#endif + +std::shared_ptr<model::Composition> model::parse(char * str, + std::string dir_path, + model::ColorFilter filter) +{ + LottieParserImpl obj(str, std::move(dir_path), std::move(filter)); + + if (obj.VerifyType()) { + obj.parseComposition(); + auto composition = obj.composition(); + if (composition) { + composition->processRepeaterObjects(); + composition->updateStats(); + +#ifdef LOTTIE_DUMP_TREE_SUPPORT + ObjectInspector inspector; + inspector.visit(composition.get(), ""); +#endif + + return composition; + } + } + + vWarning << "Input data is not Lottie format!"; + return {}; +} + +RAPIDJSON_DIAG_POP diff --git a/vendor/github.com/Benau/go_rlottie/lottie_lottieproxymodel.cpp b/vendor/github.com/Benau/go_rlottie/lottie_lottieproxymodel.cpp new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_lottieproxymodel.cpp diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_allocators.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_allocators.h new file mode 100644 index 00000000..20109a19 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_allocators.h @@ -0,0 +1,284 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_ALLOCATORS_H_ +#define RAPIDJSON_ALLOCATORS_H_ + +#include "lottie_rapidjson_rapidjson.h" + +RAPIDJSON_NAMESPACE_BEGIN + +/////////////////////////////////////////////////////////////////////////////// +// Allocator + +/*! \class rapidjson::Allocator + \brief Concept for allocating, resizing and freeing memory block. + + Note that Malloc() and Realloc() are non-static but Free() is static. + + So if an allocator need to support Free(), it needs to put its pointer in + the header of memory block. + +\code +concept Allocator { + static const bool kNeedFree; //!< Whether this allocator needs to call Free(). + + // Allocate a memory block. + // \param size of the memory block in bytes. + // \returns pointer to the memory block. + void* Malloc(size_t size); + + // Resize a memory block. + // \param originalPtr The pointer to current memory block. Null pointer is permitted. + // \param originalSize The current size in bytes. (Design issue: since some allocator may not book-keep this, explicitly pass to it can save memory.) + // \param newSize the new size in bytes. + void* Realloc(void* originalPtr, size_t originalSize, size_t newSize); + + // Free a memory block. + // \param pointer to the memory block. Null pointer is permitted. + static void Free(void *ptr); +}; +\endcode +*/ + + +/*! \def RAPIDJSON_ALLOCATOR_DEFAULT_CHUNK_CAPACITY + \ingroup RAPIDJSON_CONFIG + \brief User-defined kDefaultChunkCapacity definition. + + User can define this as any \c size that is a power of 2. +*/ + +#ifndef RAPIDJSON_ALLOCATOR_DEFAULT_CHUNK_CAPACITY +#define RAPIDJSON_ALLOCATOR_DEFAULT_CHUNK_CAPACITY (64 * 1024) +#endif + + +/////////////////////////////////////////////////////////////////////////////// +// CrtAllocator + +//! C-runtime library allocator. +/*! This class is just wrapper for standard C library memory routines. + \note implements Allocator concept +*/ +class CrtAllocator { +public: + static const bool kNeedFree = true; + void* Malloc(size_t size) { + if (size) // behavior of malloc(0) is implementation defined. + return RAPIDJSON_MALLOC(size); + else + return NULL; // standardize to returning NULL. + } + void* Realloc(void* originalPtr, size_t originalSize, size_t newSize) { + (void)originalSize; + if (newSize == 0) { + RAPIDJSON_FREE(originalPtr); + return NULL; + } + return RAPIDJSON_REALLOC(originalPtr, newSize); + } + static void Free(void *ptr) { RAPIDJSON_FREE(ptr); } +}; + +/////////////////////////////////////////////////////////////////////////////// +// MemoryPoolAllocator + +//! Default memory allocator used by the parser and DOM. +/*! This allocator allocate memory blocks from pre-allocated memory chunks. + + It does not free memory blocks. And Realloc() only allocate new memory. + + The memory chunks are allocated by BaseAllocator, which is CrtAllocator by default. + + User may also supply a buffer as the first chunk. + + If the user-buffer is full then additional chunks are allocated by BaseAllocator. + + The user-buffer is not deallocated by this allocator. + + \tparam BaseAllocator the allocator type for allocating memory chunks. Default is CrtAllocator. + \note implements Allocator concept +*/ +template <typename BaseAllocator = CrtAllocator> +class MemoryPoolAllocator { +public: + static const bool kNeedFree = false; //!< Tell users that no need to call Free() with this allocator. (concept Allocator) + + //! Constructor with chunkSize. + /*! \param chunkSize The size of memory chunk. The default is kDefaultChunkSize. + \param baseAllocator The allocator for allocating memory chunks. + */ + MemoryPoolAllocator(size_t chunkSize = kDefaultChunkCapacity, BaseAllocator* baseAllocator = 0) : + chunkHead_(0), chunk_capacity_(chunkSize), userBuffer_(0), baseAllocator_(baseAllocator), ownBaseAllocator_(0) + { + } + + //! Constructor with user-supplied buffer. + /*! The user buffer will be used firstly. When it is full, memory pool allocates new chunk with chunk size. + + The user buffer will not be deallocated when this allocator is destructed. + + \param buffer User supplied buffer. + \param size Size of the buffer in bytes. It must at least larger than sizeof(ChunkHeader). + \param chunkSize The size of memory chunk. The default is kDefaultChunkSize. + \param baseAllocator The allocator for allocating memory chunks. + */ + MemoryPoolAllocator(void *buffer, size_t size, size_t chunkSize = kDefaultChunkCapacity, BaseAllocator* baseAllocator = 0) : + chunkHead_(0), chunk_capacity_(chunkSize), userBuffer_(buffer), baseAllocator_(baseAllocator), ownBaseAllocator_(0) + { + RAPIDJSON_ASSERT(buffer != 0); + RAPIDJSON_ASSERT(size > sizeof(ChunkHeader)); + chunkHead_ = reinterpret_cast<ChunkHeader*>(buffer); + chunkHead_->capacity = size - sizeof(ChunkHeader); + chunkHead_->size = 0; + chunkHead_->next = 0; + } + + //! Destructor. + /*! This deallocates all memory chunks, excluding the user-supplied buffer. + */ + ~MemoryPoolAllocator() { + Clear(); + RAPIDJSON_DELETE(ownBaseAllocator_); + } + + //! Deallocates all memory chunks, excluding the user-supplied buffer. + void Clear() { + while (chunkHead_ && chunkHead_ != userBuffer_) { + ChunkHeader* next = chunkHead_->next; + baseAllocator_->Free(chunkHead_); + chunkHead_ = next; + } + if (chunkHead_ && chunkHead_ == userBuffer_) + chunkHead_->size = 0; // Clear user buffer + } + + //! Computes the total capacity of allocated memory chunks. + /*! \return total capacity in bytes. + */ + size_t Capacity() const { + size_t capacity = 0; + for (ChunkHeader* c = chunkHead_; c != 0; c = c->next) + capacity += c->capacity; + return capacity; + } + + //! Computes the memory blocks allocated. + /*! \return total used bytes. + */ + size_t Size() const { + size_t size = 0; + for (ChunkHeader* c = chunkHead_; c != 0; c = c->next) + size += c->size; + return size; + } + + //! Allocates a memory block. (concept Allocator) + void* Malloc(size_t size) { + if (!size) + return NULL; + + size = RAPIDJSON_ALIGN(size); + if (chunkHead_ == 0 || chunkHead_->size + size > chunkHead_->capacity) + if (!AddChunk(chunk_capacity_ > size ? chunk_capacity_ : size)) + return NULL; + + void *buffer = reinterpret_cast<char *>(chunkHead_) + RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + chunkHead_->size; + chunkHead_->size += size; + return buffer; + } + + //! Resizes a memory block (concept Allocator) + void* Realloc(void* originalPtr, size_t originalSize, size_t newSize) { + if (originalPtr == 0) + return Malloc(newSize); + + if (newSize == 0) + return NULL; + + originalSize = RAPIDJSON_ALIGN(originalSize); + newSize = RAPIDJSON_ALIGN(newSize); + + // Do not shrink if new size is smaller than original + if (originalSize >= newSize) + return originalPtr; + + // Simply expand it if it is the last allocation and there is sufficient space + if (originalPtr == reinterpret_cast<char *>(chunkHead_) + RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + chunkHead_->size - originalSize) { + size_t increment = static_cast<size_t>(newSize - originalSize); + if (chunkHead_->size + increment <= chunkHead_->capacity) { + chunkHead_->size += increment; + return originalPtr; + } + } + + // Realloc process: allocate and copy memory, do not free original buffer. + if (void* newBuffer = Malloc(newSize)) { + if (originalSize) + std::memcpy(newBuffer, originalPtr, originalSize); + return newBuffer; + } + else + return NULL; + } + + //! Frees a memory block (concept Allocator) + static void Free(void *ptr) { (void)ptr; } // Do nothing + +private: + //! Copy constructor is not permitted. + MemoryPoolAllocator(const MemoryPoolAllocator& rhs) /* = delete */; + //! Copy assignment operator is not permitted. + MemoryPoolAllocator& operator=(const MemoryPoolAllocator& rhs) /* = delete */; + + //! Creates a new chunk. + /*! \param capacity Capacity of the chunk in bytes. + \return true if success. + */ + bool AddChunk(size_t capacity) { + if (!baseAllocator_) + ownBaseAllocator_ = baseAllocator_ = RAPIDJSON_NEW(BaseAllocator)(); + if (ChunkHeader* chunk = reinterpret_cast<ChunkHeader*>(baseAllocator_->Malloc(RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + capacity))) { + chunk->capacity = capacity; + chunk->size = 0; + chunk->next = chunkHead_; + chunkHead_ = chunk; + return true; + } + else + return false; + } + + static const int kDefaultChunkCapacity = RAPIDJSON_ALLOCATOR_DEFAULT_CHUNK_CAPACITY; //!< Default chunk capacity. + + //! Chunk header for perpending to each chunk. + /*! Chunks are stored as a singly linked list. + */ + struct ChunkHeader { + size_t capacity; //!< Capacity of the chunk in bytes (excluding the header itself). + size_t size; //!< Current size of allocated memory in bytes. + ChunkHeader *next; //!< Next chunk in the linked list. + }; + + ChunkHeader *chunkHead_; //!< Head of the chunk linked-list. Only the head chunk serves allocation. + size_t chunk_capacity_; //!< The minimum capacity of chunk when they are allocated. + void *userBuffer_; //!< User supplied buffer. + BaseAllocator* baseAllocator_; //!< base allocator for allocating memory chunks. + BaseAllocator* ownBaseAllocator_; //!< base allocator created by this object. +}; + +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_ENCODINGS_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_cursorstreamwrapper.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_cursorstreamwrapper.h new file mode 100644 index 00000000..36d8e4c6 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_cursorstreamwrapper.h @@ -0,0 +1,78 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_CURSORSTREAMWRAPPER_H_ +#define RAPIDJSON_CURSORSTREAMWRAPPER_H_ + +#include "lottie_rapidjson_stream.h" + +#if defined(__GNUC__) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +#endif + +#if defined(_MSC_VER) && _MSC_VER <= 1800 +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(4702) // unreachable code +RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated +#endif + +RAPIDJSON_NAMESPACE_BEGIN + + +//! Cursor stream wrapper for counting line and column number if error exists. +/*! + \tparam InputStream Any stream that implements Stream Concept +*/ +template <typename InputStream, typename Encoding = UTF8<> > +class CursorStreamWrapper : public GenericStreamWrapper<InputStream, Encoding> { +public: + typedef typename Encoding::Ch Ch; + + CursorStreamWrapper(InputStream& is): + GenericStreamWrapper<InputStream, Encoding>(is), line_(1), col_(0) {} + + // counting line and column number + Ch Take() { + Ch ch = this->is_.Take(); + if(ch == '\n') { + line_ ++; + col_ = 0; + } else { + col_ ++; + } + return ch; + } + + //! Get the error line number, if error exists. + size_t GetLine() const { return line_; } + //! Get the error column number, if error exists. + size_t GetColumn() const { return col_; } + +private: + size_t line_; //!< Current Line + size_t col_; //!< Current Column +}; + +#if defined(_MSC_VER) && _MSC_VER <= 1800 +RAPIDJSON_DIAG_POP +#endif + +#if defined(__GNUC__) +RAPIDJSON_DIAG_POP +#endif + +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_CURSORSTREAMWRAPPER_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_document.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_document.h new file mode 100644 index 00000000..09cbf454 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_document.h @@ -0,0 +1,2732 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_DOCUMENT_H_ +#define RAPIDJSON_DOCUMENT_H_ + +/*! \file document.h */ + +#include "lottie_rapidjson_reader.h" +#include "lottie_rapidjson_internal_meta.h" +#include "lottie_rapidjson_internal_strfunc.h" +#include "lottie_rapidjson_memorystream.h" +#include "lottie_rapidjson_encodedstream.h" +#include <new> // placement new +#include <limits> +#ifdef __cpp_lib_three_way_comparison +#include <compare> +#endif + +RAPIDJSON_DIAG_PUSH +#ifdef __clang__ +RAPIDJSON_DIAG_OFF(padded) +RAPIDJSON_DIAG_OFF(switch-enum) +RAPIDJSON_DIAG_OFF(c++98-compat) +#elif defined(_MSC_VER) +RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant +RAPIDJSON_DIAG_OFF(4244) // conversion from kXxxFlags to 'uint16_t', possible loss of data +#endif + +#ifdef __GNUC__ +RAPIDJSON_DIAG_OFF(effc++) +#endif // __GNUC__ + +#ifndef RAPIDJSON_NOMEMBERITERATORCLASS +#include <iterator> // std::random_access_iterator_tag +#endif + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS +#include <utility> // std::move +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +// Forward declaration. +template <typename Encoding, typename Allocator> +class GenericValue; + +template <typename Encoding, typename Allocator, typename StackAllocator> +class GenericDocument; + +/*! \def RAPIDJSON_DEFAULT_ALLOCATOR + \ingroup RAPIDJSON_CONFIG + \brief Allows to choose default allocator. + + User can define this to use CrtAllocator or MemoryPoolAllocator. +*/ +#ifndef RAPIDJSON_DEFAULT_ALLOCATOR +#define RAPIDJSON_DEFAULT_ALLOCATOR MemoryPoolAllocator<CrtAllocator> +#endif + +/*! \def RAPIDJSON_DEFAULT_STACK_ALLOCATOR + \ingroup RAPIDJSON_CONFIG + \brief Allows to choose default stack allocator for Document. + + User can define this to use CrtAllocator or MemoryPoolAllocator. +*/ +#ifndef RAPIDJSON_DEFAULT_STACK_ALLOCATOR +#define RAPIDJSON_DEFAULT_STACK_ALLOCATOR CrtAllocator +#endif + +/*! \def RAPIDJSON_VALUE_DEFAULT_OBJECT_CAPACITY + \ingroup RAPIDJSON_CONFIG + \brief User defined kDefaultObjectCapacity value. + + User can define this as any natural number. +*/ +#ifndef RAPIDJSON_VALUE_DEFAULT_OBJECT_CAPACITY +// number of objects that rapidjson::Value allocates memory for by default +#define RAPIDJSON_VALUE_DEFAULT_OBJECT_CAPACITY 16 +#endif + +/*! \def RAPIDJSON_VALUE_DEFAULT_ARRAY_CAPACITY + \ingroup RAPIDJSON_CONFIG + \brief User defined kDefaultArrayCapacity value. + + User can define this as any natural number. +*/ +#ifndef RAPIDJSON_VALUE_DEFAULT_ARRAY_CAPACITY +// number of array elements that rapidjson::Value allocates memory for by default +#define RAPIDJSON_VALUE_DEFAULT_ARRAY_CAPACITY 16 +#endif + +//! Name-value pair in a JSON object value. +/*! + This class was internal to GenericValue. It used to be a inner struct. + But a compiler (IBM XL C/C++ for AIX) have reported to have problem with that so it moved as a namespace scope struct. + https://code.google.com/p/rapidjson/issues/detail?id=64 +*/ +template <typename Encoding, typename Allocator> +class GenericMember { +public: + GenericValue<Encoding, Allocator> name; //!< name of member (must be a string) + GenericValue<Encoding, Allocator> value; //!< value of member. + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + //! Move constructor in C++11 + GenericMember(GenericMember&& rhs) RAPIDJSON_NOEXCEPT + : name(std::move(rhs.name)), + value(std::move(rhs.value)) + { + } + + //! Move assignment in C++11 + GenericMember& operator=(GenericMember&& rhs) RAPIDJSON_NOEXCEPT { + return *this = static_cast<GenericMember&>(rhs); + } +#endif + + //! Assignment with move semantics. + /*! \param rhs Source of the assignment. Its name and value will become a null value after assignment. + */ + GenericMember& operator=(GenericMember& rhs) RAPIDJSON_NOEXCEPT { + if (RAPIDJSON_LIKELY(this != &rhs)) { + name = rhs.name; + value = rhs.value; + } + return *this; + } + + // swap() for std::sort() and other potential use in STL. + friend inline void swap(GenericMember& a, GenericMember& b) RAPIDJSON_NOEXCEPT { + a.name.Swap(b.name); + a.value.Swap(b.value); + } + +private: + //! Copy constructor is not permitted. + GenericMember(const GenericMember& rhs); +}; + +/////////////////////////////////////////////////////////////////////////////// +// GenericMemberIterator + +#ifndef RAPIDJSON_NOMEMBERITERATORCLASS + +//! (Constant) member iterator for a JSON object value +/*! + \tparam Const Is this a constant iterator? + \tparam Encoding Encoding of the value. (Even non-string values need to have the same encoding in a document) + \tparam Allocator Allocator type for allocating memory of object, array and string. + + This class implements a Random Access Iterator for GenericMember elements + of a GenericValue, see ISO/IEC 14882:2003(E) C++ standard, 24.1 [lib.iterator.requirements]. + + \note This iterator implementation is mainly intended to avoid implicit + conversions from iterator values to \c NULL, + e.g. from GenericValue::FindMember. + + \note Define \c RAPIDJSON_NOMEMBERITERATORCLASS to fall back to a + pointer-based implementation, if your platform doesn't provide + the C++ <iterator> header. + + \see GenericMember, GenericValue::MemberIterator, GenericValue::ConstMemberIterator + */ +template <bool Const, typename Encoding, typename Allocator> +class GenericMemberIterator { + + friend class GenericValue<Encoding,Allocator>; + template <bool, typename, typename> friend class GenericMemberIterator; + + typedef GenericMember<Encoding,Allocator> PlainType; + typedef typename internal::MaybeAddConst<Const,PlainType>::Type ValueType; + +public: + //! Iterator type itself + typedef GenericMemberIterator Iterator; + //! Constant iterator type + typedef GenericMemberIterator<true,Encoding,Allocator> ConstIterator; + //! Non-constant iterator type + typedef GenericMemberIterator<false,Encoding,Allocator> NonConstIterator; + + /** \name std::iterator_traits support */ + //@{ + typedef ValueType value_type; + typedef ValueType * pointer; + typedef ValueType & reference; + typedef std::ptrdiff_t difference_type; + typedef std::random_access_iterator_tag iterator_category; + //@} + + //! Pointer to (const) GenericMember + typedef pointer Pointer; + //! Reference to (const) GenericMember + typedef reference Reference; + //! Signed integer type (e.g. \c ptrdiff_t) + typedef difference_type DifferenceType; + + //! Default constructor (singular value) + /*! Creates an iterator pointing to no element. + \note All operations, except for comparisons, are undefined on such values. + */ + GenericMemberIterator() : ptr_() {} + + //! Iterator conversions to more const + /*! + \param it (Non-const) iterator to copy from + + Allows the creation of an iterator from another GenericMemberIterator + that is "less const". Especially, creating a non-constant iterator + from a constant iterator are disabled: + \li const -> non-const (not ok) + \li const -> const (ok) + \li non-const -> const (ok) + \li non-const -> non-const (ok) + + \note If the \c Const template parameter is already \c false, this + constructor effectively defines a regular copy-constructor. + Otherwise, the copy constructor is implicitly defined. + */ + GenericMemberIterator(const NonConstIterator & it) : ptr_(it.ptr_) {} + Iterator& operator=(const NonConstIterator & it) { ptr_ = it.ptr_; return *this; } + + //! @name stepping + //@{ + Iterator& operator++(){ ++ptr_; return *this; } + Iterator& operator--(){ --ptr_; return *this; } + Iterator operator++(int){ Iterator old(*this); ++ptr_; return old; } + Iterator operator--(int){ Iterator old(*this); --ptr_; return old; } + //@} + + //! @name increment/decrement + //@{ + Iterator operator+(DifferenceType n) const { return Iterator(ptr_+n); } + Iterator operator-(DifferenceType n) const { return Iterator(ptr_-n); } + + Iterator& operator+=(DifferenceType n) { ptr_+=n; return *this; } + Iterator& operator-=(DifferenceType n) { ptr_-=n; return *this; } + //@} + + //! @name relations + //@{ + template <bool Const_> bool operator==(const GenericMemberIterator<Const_, Encoding, Allocator>& that) const { return ptr_ == that.ptr_; } + template <bool Const_> bool operator!=(const GenericMemberIterator<Const_, Encoding, Allocator>& that) const { return ptr_ != that.ptr_; } + template <bool Const_> bool operator<=(const GenericMemberIterator<Const_, Encoding, Allocator>& that) const { return ptr_ <= that.ptr_; } + template <bool Const_> bool operator>=(const GenericMemberIterator<Const_, Encoding, Allocator>& that) const { return ptr_ >= that.ptr_; } + template <bool Const_> bool operator< (const GenericMemberIterator<Const_, Encoding, Allocator>& that) const { return ptr_ < that.ptr_; } + template <bool Const_> bool operator> (const GenericMemberIterator<Const_, Encoding, Allocator>& that) const { return ptr_ > that.ptr_; } + +#ifdef __cpp_lib_three_way_comparison + template <bool Const_> std::strong_ordering operator<=>(const GenericMemberIterator<Const_, Encoding, Allocator>& that) const { return ptr_ <=> that.ptr_; } +#endif + //@} + + //! @name dereference + //@{ + Reference operator*() const { return *ptr_; } + Pointer operator->() const { return ptr_; } + Reference operator[](DifferenceType n) const { return ptr_[n]; } + //@} + + //! Distance + DifferenceType operator-(ConstIterator that) const { return ptr_-that.ptr_; } + +private: + //! Internal constructor from plain pointer + explicit GenericMemberIterator(Pointer p) : ptr_(p) {} + + Pointer ptr_; //!< raw pointer +}; + +#else // RAPIDJSON_NOMEMBERITERATORCLASS + +// class-based member iterator implementation disabled, use plain pointers + +template <bool Const, typename Encoding, typename Allocator> +class GenericMemberIterator; + +//! non-const GenericMemberIterator +template <typename Encoding, typename Allocator> +class GenericMemberIterator<false,Encoding,Allocator> { + //! use plain pointer as iterator type + typedef GenericMember<Encoding,Allocator>* Iterator; +}; +//! const GenericMemberIterator +template <typename Encoding, typename Allocator> +class GenericMemberIterator<true,Encoding,Allocator> { + //! use plain const pointer as iterator type + typedef const GenericMember<Encoding,Allocator>* Iterator; +}; + +#endif // RAPIDJSON_NOMEMBERITERATORCLASS + +/////////////////////////////////////////////////////////////////////////////// +// GenericStringRef + +//! Reference to a constant string (not taking a copy) +/*! + \tparam CharType character type of the string + + This helper class is used to automatically infer constant string + references for string literals, especially from \c const \b (!) + character arrays. + + The main use is for creating JSON string values without copying the + source string via an \ref Allocator. This requires that the referenced + string pointers have a sufficient lifetime, which exceeds the lifetime + of the associated GenericValue. + + \b Example + \code + Value v("foo"); // ok, no need to copy & calculate length + const char foo[] = "foo"; + v.SetString(foo); // ok + + const char* bar = foo; + // Value x(bar); // not ok, can't rely on bar's lifetime + Value x(StringRef(bar)); // lifetime explicitly guaranteed by user + Value y(StringRef(bar, 3)); // ok, explicitly pass length + \endcode + + \see StringRef, GenericValue::SetString +*/ +template<typename CharType> +struct GenericStringRef { + typedef CharType Ch; //!< character type of the string + + //! Create string reference from \c const character array +#ifndef __clang__ // -Wdocumentation + /*! + This constructor implicitly creates a constant string reference from + a \c const character array. It has better performance than + \ref StringRef(const CharType*) by inferring the string \ref length + from the array length, and also supports strings containing null + characters. + + \tparam N length of the string, automatically inferred + + \param str Constant character array, lifetime assumed to be longer + than the use of the string in e.g. a GenericValue + + \post \ref s == str + + \note Constant complexity. + \note There is a hidden, private overload to disallow references to + non-const character arrays to be created via this constructor. + By this, e.g. function-scope arrays used to be filled via + \c snprintf are excluded from consideration. + In such cases, the referenced string should be \b copied to the + GenericValue instead. + */ +#endif + template<SizeType N> + GenericStringRef(const CharType (&str)[N]) RAPIDJSON_NOEXCEPT + : s(str), length(N-1) {} + + //! Explicitly create string reference from \c const character pointer +#ifndef __clang__ // -Wdocumentation + /*! + This constructor can be used to \b explicitly create a reference to + a constant string pointer. + + \see StringRef(const CharType*) + + \param str Constant character pointer, lifetime assumed to be longer + than the use of the string in e.g. a GenericValue + + \post \ref s == str + + \note There is a hidden, private overload to disallow references to + non-const character arrays to be created via this constructor. + By this, e.g. function-scope arrays used to be filled via + \c snprintf are excluded from consideration. + In such cases, the referenced string should be \b copied to the + GenericValue instead. + */ +#endif + explicit GenericStringRef(const CharType* str) + : s(str), length(NotNullStrLen(str)) {} + + //! Create constant string reference from pointer and length +#ifndef __clang__ // -Wdocumentation + /*! \param str constant string, lifetime assumed to be longer than the use of the string in e.g. a GenericValue + \param len length of the string, excluding the trailing NULL terminator + + \post \ref s == str && \ref length == len + \note Constant complexity. + */ +#endif + GenericStringRef(const CharType* str, SizeType len) + : s(RAPIDJSON_LIKELY(str) ? str : emptyString), length(len) { RAPIDJSON_ASSERT(str != 0 || len == 0u); } + + GenericStringRef(const GenericStringRef& rhs) : s(rhs.s), length(rhs.length) {} + + //! implicit conversion to plain CharType pointer + operator const Ch *() const { return s; } + + const Ch* const s; //!< plain CharType pointer + const SizeType length; //!< length of the string (excluding the trailing NULL terminator) + +private: + SizeType NotNullStrLen(const CharType* str) { + RAPIDJSON_ASSERT(str != 0); + return internal::StrLen(str); + } + + /// Empty string - used when passing in a NULL pointer + static const Ch emptyString[]; + + //! Disallow construction from non-const array + template<SizeType N> + GenericStringRef(CharType (&str)[N]) /* = delete */; + //! Copy assignment operator not permitted - immutable type + GenericStringRef& operator=(const GenericStringRef& rhs) /* = delete */; +}; + +template<typename CharType> +const CharType GenericStringRef<CharType>::emptyString[] = { CharType() }; + +//! Mark a character pointer as constant string +/*! Mark a plain character pointer as a "string literal". This function + can be used to avoid copying a character string to be referenced as a + value in a JSON GenericValue object, if the string's lifetime is known + to be valid long enough. + \tparam CharType Character type of the string + \param str Constant string, lifetime assumed to be longer than the use of the string in e.g. a GenericValue + \return GenericStringRef string reference object + \relatesalso GenericStringRef + + \see GenericValue::GenericValue(StringRefType), GenericValue::operator=(StringRefType), GenericValue::SetString(StringRefType), GenericValue::PushBack(StringRefType, Allocator&), GenericValue::AddMember +*/ +template<typename CharType> +inline GenericStringRef<CharType> StringRef(const CharType* str) { + return GenericStringRef<CharType>(str); +} + +//! Mark a character pointer as constant string +/*! Mark a plain character pointer as a "string literal". This function + can be used to avoid copying a character string to be referenced as a + value in a JSON GenericValue object, if the string's lifetime is known + to be valid long enough. + + This version has better performance with supplied length, and also + supports string containing null characters. + + \tparam CharType character type of the string + \param str Constant string, lifetime assumed to be longer than the use of the string in e.g. a GenericValue + \param length The length of source string. + \return GenericStringRef string reference object + \relatesalso GenericStringRef +*/ +template<typename CharType> +inline GenericStringRef<CharType> StringRef(const CharType* str, size_t length) { + return GenericStringRef<CharType>(str, SizeType(length)); +} + +#if RAPIDJSON_HAS_STDSTRING +//! Mark a string object as constant string +/*! Mark a string object (e.g. \c std::string) as a "string literal". + This function can be used to avoid copying a string to be referenced as a + value in a JSON GenericValue object, if the string's lifetime is known + to be valid long enough. + + \tparam CharType character type of the string + \param str Constant string, lifetime assumed to be longer than the use of the string in e.g. a GenericValue + \return GenericStringRef string reference object + \relatesalso GenericStringRef + \note Requires the definition of the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING. +*/ +template<typename CharType> +inline GenericStringRef<CharType> StringRef(const std::basic_string<CharType>& str) { + return GenericStringRef<CharType>(str.data(), SizeType(str.size())); +} +#endif + +/////////////////////////////////////////////////////////////////////////////// +// GenericValue type traits +namespace internal { + +template <typename T, typename Encoding = void, typename Allocator = void> +struct IsGenericValueImpl : FalseType {}; + +// select candidates according to nested encoding and allocator types +template <typename T> struct IsGenericValueImpl<T, typename Void<typename T::EncodingType>::Type, typename Void<typename T::AllocatorType>::Type> + : IsBaseOf<GenericValue<typename T::EncodingType, typename T::AllocatorType>, T>::Type {}; + +// helper to match arbitrary GenericValue instantiations, including derived classes +template <typename T> struct IsGenericValue : IsGenericValueImpl<T>::Type {}; + +} // namespace internal + +/////////////////////////////////////////////////////////////////////////////// +// TypeHelper + +namespace internal { + +template <typename ValueType, typename T> +struct TypeHelper {}; + +template<typename ValueType> +struct TypeHelper<ValueType, bool> { + static bool Is(const ValueType& v) { return v.IsBool(); } + static bool Get(const ValueType& v) { return v.GetBool(); } + static ValueType& Set(ValueType& v, bool data) { return v.SetBool(data); } + static ValueType& Set(ValueType& v, bool data, typename ValueType::AllocatorType&) { return v.SetBool(data); } +}; + +template<typename ValueType> +struct TypeHelper<ValueType, int> { + static bool Is(const ValueType& v) { return v.IsInt(); } + static int Get(const ValueType& v) { return v.GetInt(); } + static ValueType& Set(ValueType& v, int data) { return v.SetInt(data); } + static ValueType& Set(ValueType& v, int data, typename ValueType::AllocatorType&) { return v.SetInt(data); } +}; + +template<typename ValueType> +struct TypeHelper<ValueType, unsigned> { + static bool Is(const ValueType& v) { return v.IsUint(); } + static unsigned Get(const ValueType& v) { return v.GetUint(); } + static ValueType& Set(ValueType& v, unsigned data) { return v.SetUint(data); } + static ValueType& Set(ValueType& v, unsigned data, typename ValueType::AllocatorType&) { return v.SetUint(data); } +}; + +#ifdef _MSC_VER +RAPIDJSON_STATIC_ASSERT(sizeof(long) == sizeof(int)); +template<typename ValueType> +struct TypeHelper<ValueType, long> { + static bool Is(const ValueType& v) { return v.IsInt(); } + static long Get(const ValueType& v) { return v.GetInt(); } + static ValueType& Set(ValueType& v, long data) { return v.SetInt(data); } + static ValueType& Set(ValueType& v, long data, typename ValueType::AllocatorType&) { return v.SetInt(data); } +}; + +RAPIDJSON_STATIC_ASSERT(sizeof(unsigned long) == sizeof(unsigned)); +template<typename ValueType> +struct TypeHelper<ValueType, unsigned long> { + static bool Is(const ValueType& v) { return v.IsUint(); } + static unsigned long Get(const ValueType& v) { return v.GetUint(); } + static ValueType& Set(ValueType& v, unsigned long data) { return v.SetUint(data); } + static ValueType& Set(ValueType& v, unsigned long data, typename ValueType::AllocatorType&) { return v.SetUint(data); } +}; +#endif + +template<typename ValueType> +struct TypeHelper<ValueType, int64_t> { + static bool Is(const ValueType& v) { return v.IsInt64(); } + static int64_t Get(const ValueType& v) { return v.GetInt64(); } + static ValueType& Set(ValueType& v, int64_t data) { return v.SetInt64(data); } + static ValueType& Set(ValueType& v, int64_t data, typename ValueType::AllocatorType&) { return v.SetInt64(data); } +}; + +template<typename ValueType> +struct TypeHelper<ValueType, uint64_t> { + static bool Is(const ValueType& v) { return v.IsUint64(); } + static uint64_t Get(const ValueType& v) { return v.GetUint64(); } + static ValueType& Set(ValueType& v, uint64_t data) { return v.SetUint64(data); } + static ValueType& Set(ValueType& v, uint64_t data, typename ValueType::AllocatorType&) { return v.SetUint64(data); } +}; + +template<typename ValueType> +struct TypeHelper<ValueType, double> { + static bool Is(const ValueType& v) { return v.IsDouble(); } + static double Get(const ValueType& v) { return v.GetDouble(); } + static ValueType& Set(ValueType& v, double data) { return v.SetDouble(data); } + static ValueType& Set(ValueType& v, double data, typename ValueType::AllocatorType&) { return v.SetDouble(data); } +}; + +template<typename ValueType> +struct TypeHelper<ValueType, float> { + static bool Is(const ValueType& v) { return v.IsFloat(); } + static float Get(const ValueType& v) { return v.GetFloat(); } + static ValueType& Set(ValueType& v, float data) { return v.SetFloat(data); } + static ValueType& Set(ValueType& v, float data, typename ValueType::AllocatorType&) { return v.SetFloat(data); } +}; + +template<typename ValueType> +struct TypeHelper<ValueType, const typename ValueType::Ch*> { + typedef const typename ValueType::Ch* StringType; + static bool Is(const ValueType& v) { return v.IsString(); } + static StringType Get(const ValueType& v) { return v.GetString(); } + static ValueType& Set(ValueType& v, const StringType data) { return v.SetString(typename ValueType::StringRefType(data)); } + static ValueType& Set(ValueType& v, const StringType data, typename ValueType::AllocatorType& a) { return v.SetString(data, a); } +}; + +#if RAPIDJSON_HAS_STDSTRING +template<typename ValueType> +struct TypeHelper<ValueType, std::basic_string<typename ValueType::Ch> > { + typedef std::basic_string<typename ValueType::Ch> StringType; + static bool Is(const ValueType& v) { return v.IsString(); } + static StringType Get(const ValueType& v) { return StringType(v.GetString(), v.GetStringLength()); } + static ValueType& Set(ValueType& v, const StringType& data, typename ValueType::AllocatorType& a) { return v.SetString(data, a); } +}; +#endif + +template<typename ValueType> +struct TypeHelper<ValueType, typename ValueType::Array> { + typedef typename ValueType::Array ArrayType; + static bool Is(const ValueType& v) { return v.IsArray(); } + static ArrayType Get(ValueType& v) { return v.GetArray(); } + static ValueType& Set(ValueType& v, ArrayType data) { return v = data; } + static ValueType& Set(ValueType& v, ArrayType data, typename ValueType::AllocatorType&) { return v = data; } +}; + +template<typename ValueType> +struct TypeHelper<ValueType, typename ValueType::ConstArray> { + typedef typename ValueType::ConstArray ArrayType; + static bool Is(const ValueType& v) { return v.IsArray(); } + static ArrayType Get(const ValueType& v) { return v.GetArray(); } +}; + +template<typename ValueType> +struct TypeHelper<ValueType, typename ValueType::Object> { + typedef typename ValueType::Object ObjectType; + static bool Is(const ValueType& v) { return v.IsObject(); } + static ObjectType Get(ValueType& v) { return v.GetObject(); } + static ValueType& Set(ValueType& v, ObjectType data) { return v = data; } + static ValueType& Set(ValueType& v, ObjectType data, typename ValueType::AllocatorType&) { return v = data; } +}; + +template<typename ValueType> +struct TypeHelper<ValueType, typename ValueType::ConstObject> { + typedef typename ValueType::ConstObject ObjectType; + static bool Is(const ValueType& v) { return v.IsObject(); } + static ObjectType Get(const ValueType& v) { return v.GetObject(); } +}; + +} // namespace internal + +// Forward declarations +template <bool, typename> class GenericArray; +template <bool, typename> class GenericObject; + +/////////////////////////////////////////////////////////////////////////////// +// GenericValue + +//! Represents a JSON value. Use Value for UTF8 encoding and default allocator. +/*! + A JSON value can be one of 7 types. This class is a variant type supporting + these types. + + Use the Value if UTF8 and default allocator + + \tparam Encoding Encoding of the value. (Even non-string values need to have the same encoding in a document) + \tparam Allocator Allocator type for allocating memory of object, array and string. +*/ +template <typename Encoding, typename Allocator = RAPIDJSON_DEFAULT_ALLOCATOR > +class GenericValue { +public: + //! Name-value pair in an object. + typedef GenericMember<Encoding, Allocator> Member; + typedef Encoding EncodingType; //!< Encoding type from template parameter. + typedef Allocator AllocatorType; //!< Allocator type from template parameter. + typedef typename Encoding::Ch Ch; //!< Character type derived from Encoding. + typedef GenericStringRef<Ch> StringRefType; //!< Reference to a constant string + typedef typename GenericMemberIterator<false,Encoding,Allocator>::Iterator MemberIterator; //!< Member iterator for iterating in object. + typedef typename GenericMemberIterator<true,Encoding,Allocator>::Iterator ConstMemberIterator; //!< Constant member iterator for iterating in object. + typedef GenericValue* ValueIterator; //!< Value iterator for iterating in array. + typedef const GenericValue* ConstValueIterator; //!< Constant value iterator for iterating in array. + typedef GenericValue<Encoding, Allocator> ValueType; //!< Value type of itself. + typedef GenericArray<false, ValueType> Array; + typedef GenericArray<true, ValueType> ConstArray; + typedef GenericObject<false, ValueType> Object; + typedef GenericObject<true, ValueType> ConstObject; + + //!@name Constructors and destructor. + //@{ + + //! Default constructor creates a null value. + GenericValue() RAPIDJSON_NOEXCEPT : data_() { data_.f.flags = kNullFlag; } + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + //! Move constructor in C++11 + GenericValue(GenericValue&& rhs) RAPIDJSON_NOEXCEPT : data_(rhs.data_) { + rhs.data_.f.flags = kNullFlag; // give up contents + } +#endif + +private: + //! Copy constructor is not permitted. + GenericValue(const GenericValue& rhs); + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + //! Moving from a GenericDocument is not permitted. + template <typename StackAllocator> + GenericValue(GenericDocument<Encoding,Allocator,StackAllocator>&& rhs); + + //! Move assignment from a GenericDocument is not permitted. + template <typename StackAllocator> + GenericValue& operator=(GenericDocument<Encoding,Allocator,StackAllocator>&& rhs); +#endif + +public: + + //! Constructor with JSON value type. + /*! This creates a Value of specified type with default content. + \param type Type of the value. + \note Default content for number is zero. + */ + explicit GenericValue(Type type) RAPIDJSON_NOEXCEPT : data_() { + static const uint16_t defaultFlags[] = { + kNullFlag, kFalseFlag, kTrueFlag, kObjectFlag, kArrayFlag, kShortStringFlag, + kNumberAnyFlag + }; + RAPIDJSON_NOEXCEPT_ASSERT(type >= kNullType && type <= kNumberType); + data_.f.flags = defaultFlags[type]; + + // Use ShortString to store empty string. + if (type == kStringType) + data_.ss.SetLength(0); + } + + //! Explicit copy constructor (with allocator) + /*! Creates a copy of a Value by using the given Allocator + \tparam SourceAllocator allocator of \c rhs + \param rhs Value to copy from (read-only) + \param allocator Allocator for allocating copied elements and buffers. Commonly use GenericDocument::GetAllocator(). + \param copyConstStrings Force copying of constant strings (e.g. referencing an in-situ buffer) + \see CopyFrom() + */ + template <typename SourceAllocator> + GenericValue(const GenericValue<Encoding,SourceAllocator>& rhs, Allocator& allocator, bool copyConstStrings = false) { + switch (rhs.GetType()) { + case kObjectType: { + SizeType count = rhs.data_.o.size; + Member* lm = reinterpret_cast<Member*>(allocator.Malloc(count * sizeof(Member))); + const typename GenericValue<Encoding,SourceAllocator>::Member* rm = rhs.GetMembersPointer(); + for (SizeType i = 0; i < count; i++) { + new (&lm[i].name) GenericValue(rm[i].name, allocator, copyConstStrings); + new (&lm[i].value) GenericValue(rm[i].value, allocator, copyConstStrings); + } + data_.f.flags = kObjectFlag; + data_.o.size = data_.o.capacity = count; + SetMembersPointer(lm); + } + break; + case kArrayType: { + SizeType count = rhs.data_.a.size; + GenericValue* le = reinterpret_cast<GenericValue*>(allocator.Malloc(count * sizeof(GenericValue))); + const GenericValue<Encoding,SourceAllocator>* re = rhs.GetElementsPointer(); + for (SizeType i = 0; i < count; i++) + new (&le[i]) GenericValue(re[i], allocator, copyConstStrings); + data_.f.flags = kArrayFlag; + data_.a.size = data_.a.capacity = count; + SetElementsPointer(le); + } + break; + case kStringType: + if (rhs.data_.f.flags == kConstStringFlag && !copyConstStrings) { + data_.f.flags = rhs.data_.f.flags; + data_ = *reinterpret_cast<const Data*>(&rhs.data_); + } + else + SetStringRaw(StringRef(rhs.GetString(), rhs.GetStringLength()), allocator); + break; + default: + data_.f.flags = rhs.data_.f.flags; + data_ = *reinterpret_cast<const Data*>(&rhs.data_); + break; + } + } + + //! Constructor for boolean value. + /*! \param b Boolean value + \note This constructor is limited to \em real boolean values and rejects + implicitly converted types like arbitrary pointers. Use an explicit cast + to \c bool, if you want to construct a boolean JSON value in such cases. + */ +#ifndef RAPIDJSON_DOXYGEN_RUNNING // hide SFINAE from Doxygen + template <typename T> + explicit GenericValue(T b, RAPIDJSON_ENABLEIF((internal::IsSame<bool, T>))) RAPIDJSON_NOEXCEPT // See #472 +#else + explicit GenericValue(bool b) RAPIDJSON_NOEXCEPT +#endif + : data_() { + // safe-guard against failing SFINAE + RAPIDJSON_STATIC_ASSERT((internal::IsSame<bool,T>::Value)); + data_.f.flags = b ? kTrueFlag : kFalseFlag; + } + + //! Constructor for int value. + explicit GenericValue(int i) RAPIDJSON_NOEXCEPT : data_() { + data_.n.i64 = i; + data_.f.flags = (i >= 0) ? (kNumberIntFlag | kUintFlag | kUint64Flag) : kNumberIntFlag; + } + + //! Constructor for unsigned value. + explicit GenericValue(unsigned u) RAPIDJSON_NOEXCEPT : data_() { + data_.n.u64 = u; + data_.f.flags = (u & 0x80000000) ? kNumberUintFlag : (kNumberUintFlag | kIntFlag | kInt64Flag); + } + + //! Constructor for int64_t value. + explicit GenericValue(int64_t i64) RAPIDJSON_NOEXCEPT : data_() { + data_.n.i64 = i64; + data_.f.flags = kNumberInt64Flag; + if (i64 >= 0) { + data_.f.flags |= kNumberUint64Flag; + if (!(static_cast<uint64_t>(i64) & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x00000000))) + data_.f.flags |= kUintFlag; + if (!(static_cast<uint64_t>(i64) & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x80000000))) + data_.f.flags |= kIntFlag; + } + else if (i64 >= static_cast<int64_t>(RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x80000000))) + data_.f.flags |= kIntFlag; + } + + //! Constructor for uint64_t value. + explicit GenericValue(uint64_t u64) RAPIDJSON_NOEXCEPT : data_() { + data_.n.u64 = u64; + data_.f.flags = kNumberUint64Flag; + if (!(u64 & RAPIDJSON_UINT64_C2(0x80000000, 0x00000000))) + data_.f.flags |= kInt64Flag; + if (!(u64 & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x00000000))) + data_.f.flags |= kUintFlag; + if (!(u64 & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x80000000))) + data_.f.flags |= kIntFlag; + } + + //! Constructor for double value. + explicit GenericValue(double d) RAPIDJSON_NOEXCEPT : data_() { data_.n.d = d; data_.f.flags = kNumberDoubleFlag; } + + //! Constructor for float value. + explicit GenericValue(float f) RAPIDJSON_NOEXCEPT : data_() { data_.n.d = static_cast<double>(f); data_.f.flags = kNumberDoubleFlag; } + + //! Constructor for constant string (i.e. do not make a copy of string) + GenericValue(const Ch* s, SizeType length) RAPIDJSON_NOEXCEPT : data_() { SetStringRaw(StringRef(s, length)); } + + //! Constructor for constant string (i.e. do not make a copy of string) + explicit GenericValue(StringRefType s) RAPIDJSON_NOEXCEPT : data_() { SetStringRaw(s); } + + //! Constructor for copy-string (i.e. do make a copy of string) + GenericValue(const Ch* s, SizeType length, Allocator& allocator) : data_() { SetStringRaw(StringRef(s, length), allocator); } + + //! Constructor for copy-string (i.e. do make a copy of string) + GenericValue(const Ch*s, Allocator& allocator) : data_() { SetStringRaw(StringRef(s), allocator); } + +#if RAPIDJSON_HAS_STDSTRING + //! Constructor for copy-string from a string object (i.e. do make a copy of string) + /*! \note Requires the definition of the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING. + */ + GenericValue(const std::basic_string<Ch>& s, Allocator& allocator) : data_() { SetStringRaw(StringRef(s), allocator); } +#endif + + //! Constructor for Array. + /*! + \param a An array obtained by \c GetArray(). + \note \c Array is always pass-by-value. + \note the source array is moved into this value and the sourec array becomes empty. + */ + GenericValue(Array a) RAPIDJSON_NOEXCEPT : data_(a.value_.data_) { + a.value_.data_ = Data(); + a.value_.data_.f.flags = kArrayFlag; + } + + //! Constructor for Object. + /*! + \param o An object obtained by \c GetObject(). + \note \c Object is always pass-by-value. + \note the source object is moved into this value and the sourec object becomes empty. + */ + GenericValue(Object o) RAPIDJSON_NOEXCEPT : data_(o.value_.data_) { + o.value_.data_ = Data(); + o.value_.data_.f.flags = kObjectFlag; + } + + //! Destructor. + /*! Need to destruct elements of array, members of object, or copy-string. + */ + ~GenericValue() { + if (Allocator::kNeedFree) { // Shortcut by Allocator's trait + switch(data_.f.flags) { + case kArrayFlag: + { + GenericValue* e = GetElementsPointer(); + for (GenericValue* v = e; v != e + data_.a.size; ++v) + v->~GenericValue(); + Allocator::Free(e); + } + break; + + case kObjectFlag: + for (MemberIterator m = MemberBegin(); m != MemberEnd(); ++m) + m->~Member(); + Allocator::Free(GetMembersPointer()); + break; + + case kCopyStringFlag: + Allocator::Free(const_cast<Ch*>(GetStringPointer())); + break; + + default: + break; // Do nothing for other types. + } + } + } + + //@} + + //!@name Assignment operators + //@{ + + //! Assignment with move semantics. + /*! \param rhs Source of the assignment. It will become a null value after assignment. + */ + GenericValue& operator=(GenericValue& rhs) RAPIDJSON_NOEXCEPT { + if (RAPIDJSON_LIKELY(this != &rhs)) { + this->~GenericValue(); + RawAssign(rhs); + } + return *this; + } + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + //! Move assignment in C++11 + GenericValue& operator=(GenericValue&& rhs) RAPIDJSON_NOEXCEPT { + return *this = rhs.Move(); + } +#endif + + //! Assignment of constant string reference (no copy) + /*! \param str Constant string reference to be assigned + \note This overload is needed to avoid clashes with the generic primitive type assignment overload below. + \see GenericStringRef, operator=(T) + */ + GenericValue& operator=(StringRefType str) RAPIDJSON_NOEXCEPT { + GenericValue s(str); + return *this = s; + } + + //! Assignment with primitive types. + /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t + \param value The value to be assigned. + + \note The source type \c T explicitly disallows all pointer types, + especially (\c const) \ref Ch*. This helps avoiding implicitly + referencing character strings with insufficient lifetime, use + \ref SetString(const Ch*, Allocator&) (for copying) or + \ref StringRef() (to explicitly mark the pointer as constant) instead. + All other pointer types would implicitly convert to \c bool, + use \ref SetBool() instead. + */ + template <typename T> + RAPIDJSON_DISABLEIF_RETURN((internal::IsPointer<T>), (GenericValue&)) + operator=(T value) { + GenericValue v(value); + return *this = v; + } + + //! Deep-copy assignment from Value + /*! Assigns a \b copy of the Value to the current Value object + \tparam SourceAllocator Allocator type of \c rhs + \param rhs Value to copy from (read-only) + \param allocator Allocator to use for copying + \param copyConstStrings Force copying of constant strings (e.g. referencing an in-situ buffer) + */ + template <typename SourceAllocator> + GenericValue& CopyFrom(const GenericValue<Encoding, SourceAllocator>& rhs, Allocator& allocator, bool copyConstStrings = false) { + RAPIDJSON_ASSERT(static_cast<void*>(this) != static_cast<void const*>(&rhs)); + this->~GenericValue(); + new (this) GenericValue(rhs, allocator, copyConstStrings); + return *this; + } + + //! Exchange the contents of this value with those of other. + /*! + \param other Another value. + \note Constant complexity. + */ + GenericValue& Swap(GenericValue& other) RAPIDJSON_NOEXCEPT { + GenericValue temp; + temp.RawAssign(*this); + RawAssign(other); + other.RawAssign(temp); + return *this; + } + + //! free-standing swap function helper + /*! + Helper function to enable support for common swap implementation pattern based on \c std::swap: + \code + void swap(MyClass& a, MyClass& b) { + using std::swap; + swap(a.value, b.value); + // ... + } + \endcode + \see Swap() + */ + friend inline void swap(GenericValue& a, GenericValue& b) RAPIDJSON_NOEXCEPT { a.Swap(b); } + + //! Prepare Value for move semantics + /*! \return *this */ + GenericValue& Move() RAPIDJSON_NOEXCEPT { return *this; } + //@} + + //!@name Equal-to and not-equal-to operators + //@{ + //! Equal-to operator + /*! + \note If an object contains duplicated named member, comparing equality with any object is always \c false. + \note Complexity is quadratic in Object's member number and linear for the rest (number of all values in the subtree and total lengths of all strings). + */ + template <typename SourceAllocator> + bool operator==(const GenericValue<Encoding, SourceAllocator>& rhs) const { + typedef GenericValue<Encoding, SourceAllocator> RhsType; + if (GetType() != rhs.GetType()) + return false; + + switch (GetType()) { + case kObjectType: // Warning: O(n^2) inner-loop + if (data_.o.size != rhs.data_.o.size) + return false; + for (ConstMemberIterator lhsMemberItr = MemberBegin(); lhsMemberItr != MemberEnd(); ++lhsMemberItr) { + typename RhsType::ConstMemberIterator rhsMemberItr = rhs.FindMember(lhsMemberItr->name); + if (rhsMemberItr == rhs.MemberEnd() || lhsMemberItr->value != rhsMemberItr->value) + return false; + } + return true; + + case kArrayType: + if (data_.a.size != rhs.data_.a.size) + return false; + for (SizeType i = 0; i < data_.a.size; i++) + if ((*this)[i] != rhs[i]) + return false; + return true; + + case kStringType: + return StringEqual(rhs); + + case kNumberType: + if (IsDouble() || rhs.IsDouble()) { + double a = GetDouble(); // May convert from integer to double. + double b = rhs.GetDouble(); // Ditto + return a >= b && a <= b; // Prevent -Wfloat-equal + } + else + return data_.n.u64 == rhs.data_.n.u64; + + default: + return true; + } + } + + //! Equal-to operator with const C-string pointer + bool operator==(const Ch* rhs) const { return *this == GenericValue(StringRef(rhs)); } + +#if RAPIDJSON_HAS_STDSTRING + //! Equal-to operator with string object + /*! \note Requires the definition of the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING. + */ + bool operator==(const std::basic_string<Ch>& rhs) const { return *this == GenericValue(StringRef(rhs)); } +#endif + + //! Equal-to operator with primitive types + /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c double, \c true, \c false + */ + template <typename T> RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>,internal::IsGenericValue<T> >), (bool)) operator==(const T& rhs) const { return *this == GenericValue(rhs); } + + //! Not-equal-to operator + /*! \return !(*this == rhs) + */ + template <typename SourceAllocator> + bool operator!=(const GenericValue<Encoding, SourceAllocator>& rhs) const { return !(*this == rhs); } + + //! Not-equal-to operator with const C-string pointer + bool operator!=(const Ch* rhs) const { return !(*this == rhs); } + + //! Not-equal-to operator with arbitrary types + /*! \return !(*this == rhs) + */ + template <typename T> RAPIDJSON_DISABLEIF_RETURN((internal::IsGenericValue<T>), (bool)) operator!=(const T& rhs) const { return !(*this == rhs); } + + //! Equal-to operator with arbitrary types (symmetric version) + /*! \return (rhs == lhs) + */ + template <typename T> friend RAPIDJSON_DISABLEIF_RETURN((internal::IsGenericValue<T>), (bool)) operator==(const T& lhs, const GenericValue& rhs) { return rhs == lhs; } + + //! Not-Equal-to operator with arbitrary types (symmetric version) + /*! \return !(rhs == lhs) + */ + template <typename T> friend RAPIDJSON_DISABLEIF_RETURN((internal::IsGenericValue<T>), (bool)) operator!=(const T& lhs, const GenericValue& rhs) { return !(rhs == lhs); } + //@} + + //!@name Type + //@{ + + Type GetType() const { return static_cast<Type>(data_.f.flags & kTypeMask); } + bool IsNull() const { return data_.f.flags == kNullFlag; } + bool IsFalse() const { return data_.f.flags == kFalseFlag; } + bool IsTrue() const { return data_.f.flags == kTrueFlag; } + bool IsBool() const { return (data_.f.flags & kBoolFlag) != 0; } + bool IsObject() const { return data_.f.flags == kObjectFlag; } + bool IsArray() const { return data_.f.flags == kArrayFlag; } + bool IsNumber() const { return (data_.f.flags & kNumberFlag) != 0; } + bool IsInt() const { return (data_.f.flags & kIntFlag) != 0; } + bool IsUint() const { return (data_.f.flags & kUintFlag) != 0; } + bool IsInt64() const { return (data_.f.flags & kInt64Flag) != 0; } + bool IsUint64() const { return (data_.f.flags & kUint64Flag) != 0; } + bool IsDouble() const { return (data_.f.flags & kDoubleFlag) != 0; } + bool IsString() const { return (data_.f.flags & kStringFlag) != 0; } + + // Checks whether a number can be losslessly converted to a double. + bool IsLosslessDouble() const { + if (!IsNumber()) return false; + if (IsUint64()) { + uint64_t u = GetUint64(); + volatile double d = static_cast<double>(u); + return (d >= 0.0) + && (d < static_cast<double>((std::numeric_limits<uint64_t>::max)())) + && (u == static_cast<uint64_t>(d)); + } + if (IsInt64()) { + int64_t i = GetInt64(); + volatile double d = static_cast<double>(i); + return (d >= static_cast<double>((std::numeric_limits<int64_t>::min)())) + && (d < static_cast<double>((std::numeric_limits<int64_t>::max)())) + && (i == static_cast<int64_t>(d)); + } + return true; // double, int, uint are always lossless + } + + // Checks whether a number is a float (possible lossy). + bool IsFloat() const { + if ((data_.f.flags & kDoubleFlag) == 0) + return false; + double d = GetDouble(); + return d >= -3.4028234e38 && d <= 3.4028234e38; + } + // Checks whether a number can be losslessly converted to a float. + bool IsLosslessFloat() const { + if (!IsNumber()) return false; + double a = GetDouble(); + if (a < static_cast<double>(-(std::numeric_limits<float>::max)()) + || a > static_cast<double>((std::numeric_limits<float>::max)())) + return false; + double b = static_cast<double>(static_cast<float>(a)); + return a >= b && a <= b; // Prevent -Wfloat-equal + } + + //@} + + //!@name Null + //@{ + + GenericValue& SetNull() { this->~GenericValue(); new (this) GenericValue(); return *this; } + + //@} + + //!@name Bool + //@{ + + bool GetBool() const { RAPIDJSON_ASSERT(IsBool()); return data_.f.flags == kTrueFlag; } + //!< Set boolean value + /*! \post IsBool() == true */ + GenericValue& SetBool(bool b) { this->~GenericValue(); new (this) GenericValue(b); return *this; } + + //@} + + //!@name Object + //@{ + + //! Set this value as an empty object. + /*! \post IsObject() == true */ + GenericValue& SetObject() { this->~GenericValue(); new (this) GenericValue(kObjectType); return *this; } + + //! Get the number of members in the object. + SizeType MemberCount() const { RAPIDJSON_ASSERT(IsObject()); return data_.o.size; } + + //! Get the capacity of object. + SizeType MemberCapacity() const { RAPIDJSON_ASSERT(IsObject()); return data_.o.capacity; } + + //! Check whether the object is empty. + bool ObjectEmpty() const { RAPIDJSON_ASSERT(IsObject()); return data_.o.size == 0; } + + //! Get a value from an object associated with the name. + /*! \pre IsObject() == true + \tparam T Either \c Ch or \c const \c Ch (template used for disambiguation with \ref operator[](SizeType)) + \note In version 0.1x, if the member is not found, this function returns a null value. This makes issue 7. + Since 0.2, if the name is not correct, it will assert. + If user is unsure whether a member exists, user should use HasMember() first. + A better approach is to use FindMember(). + \note Linear time complexity. + */ + template <typename T> + RAPIDJSON_DISABLEIF_RETURN((internal::NotExpr<internal::IsSame<typename internal::RemoveConst<T>::Type, Ch> >),(GenericValue&)) operator[](T* name) { + GenericValue n(StringRef(name)); + return (*this)[n]; + } + template <typename T> + RAPIDJSON_DISABLEIF_RETURN((internal::NotExpr<internal::IsSame<typename internal::RemoveConst<T>::Type, Ch> >),(const GenericValue&)) operator[](T* name) const { return const_cast<GenericValue&>(*this)[name]; } + + //! Get a value from an object associated with the name. + /*! \pre IsObject() == true + \tparam SourceAllocator Allocator of the \c name value + + \note Compared to \ref operator[](T*), this version is faster because it does not need a StrLen(). + And it can also handle strings with embedded null characters. + + \note Linear time complexity. + */ + template <typename SourceAllocator> + GenericValue& operator[](const GenericValue<Encoding, SourceAllocator>& name) { + MemberIterator member = FindMember(name); + if (member != MemberEnd()) + return member->value; + else { + RAPIDJSON_ASSERT(false); // see above note + + // This will generate -Wexit-time-destructors in clang + // static GenericValue NullValue; + // return NullValue; + + // Use static buffer and placement-new to prevent destruction + static char buffer[sizeof(GenericValue)]; + return *new (buffer) GenericValue(); + } + } + template <typename SourceAllocator> + const GenericValue& operator[](const GenericValue<Encoding, SourceAllocator>& name) const { return const_cast<GenericValue&>(*this)[name]; } + +#if RAPIDJSON_HAS_STDSTRING + //! Get a value from an object associated with name (string object). + GenericValue& operator[](const std::basic_string<Ch>& name) { return (*this)[GenericValue(StringRef(name))]; } + const GenericValue& operator[](const std::basic_string<Ch>& name) const { return (*this)[GenericValue(StringRef(name))]; } +#endif + + //! Const member iterator + /*! \pre IsObject() == true */ + ConstMemberIterator MemberBegin() const { RAPIDJSON_ASSERT(IsObject()); return ConstMemberIterator(GetMembersPointer()); } + //! Const \em past-the-end member iterator + /*! \pre IsObject() == true */ + ConstMemberIterator MemberEnd() const { RAPIDJSON_ASSERT(IsObject()); return ConstMemberIterator(GetMembersPointer() + data_.o.size); } + //! Member iterator + /*! \pre IsObject() == true */ + MemberIterator MemberBegin() { RAPIDJSON_ASSERT(IsObject()); return MemberIterator(GetMembersPointer()); } + //! \em Past-the-end member iterator + /*! \pre IsObject() == true */ + MemberIterator MemberEnd() { RAPIDJSON_ASSERT(IsObject()); return MemberIterator(GetMembersPointer() + data_.o.size); } + + //! Request the object to have enough capacity to store members. + /*! \param newCapacity The capacity that the object at least need to have. + \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \note Linear time complexity. + */ + GenericValue& MemberReserve(SizeType newCapacity, Allocator &allocator) { + RAPIDJSON_ASSERT(IsObject()); + if (newCapacity > data_.o.capacity) { + SetMembersPointer(reinterpret_cast<Member*>(allocator.Realloc(GetMembersPointer(), data_.o.capacity * sizeof(Member), newCapacity * sizeof(Member)))); + data_.o.capacity = newCapacity; + } + return *this; + } + + //! Check whether a member exists in the object. + /*! + \param name Member name to be searched. + \pre IsObject() == true + \return Whether a member with that name exists. + \note It is better to use FindMember() directly if you need the obtain the value as well. + \note Linear time complexity. + */ + bool HasMember(const Ch* name) const { return FindMember(name) != MemberEnd(); } + +#if RAPIDJSON_HAS_STDSTRING + //! Check whether a member exists in the object with string object. + /*! + \param name Member name to be searched. + \pre IsObject() == true + \return Whether a member with that name exists. + \note It is better to use FindMember() directly if you need the obtain the value as well. + \note Linear time complexity. + */ + bool HasMember(const std::basic_string<Ch>& name) const { return FindMember(name) != MemberEnd(); } +#endif + + //! Check whether a member exists in the object with GenericValue name. + /*! + This version is faster because it does not need a StrLen(). It can also handle string with null character. + \param name Member name to be searched. + \pre IsObject() == true + \return Whether a member with that name exists. + \note It is better to use FindMember() directly if you need the obtain the value as well. + \note Linear time complexity. + */ + template <typename SourceAllocator> + bool HasMember(const GenericValue<Encoding, SourceAllocator>& name) const { return FindMember(name) != MemberEnd(); } + + //! Find member by name. + /*! + \param name Member name to be searched. + \pre IsObject() == true + \return Iterator to member, if it exists. + Otherwise returns \ref MemberEnd(). + + \note Earlier versions of Rapidjson returned a \c NULL pointer, in case + the requested member doesn't exist. For consistency with e.g. + \c std::map, this has been changed to MemberEnd() now. + \note Linear time complexity. + */ + MemberIterator FindMember(const Ch* name) { + GenericValue n(StringRef(name)); + return FindMember(n); + } + + ConstMemberIterator FindMember(const Ch* name) const { return const_cast<GenericValue&>(*this).FindMember(name); } + + //! Find member by name. + /*! + This version is faster because it does not need a StrLen(). It can also handle string with null character. + \param name Member name to be searched. + \pre IsObject() == true + \return Iterator to member, if it exists. + Otherwise returns \ref MemberEnd(). + + \note Earlier versions of Rapidjson returned a \c NULL pointer, in case + the requested member doesn't exist. For consistency with e.g. + \c std::map, this has been changed to MemberEnd() now. + \note Linear time complexity. + */ + template <typename SourceAllocator> + MemberIterator FindMember(const GenericValue<Encoding, SourceAllocator>& name) { + RAPIDJSON_ASSERT(IsObject()); + RAPIDJSON_ASSERT(name.IsString()); + MemberIterator member = MemberBegin(); + for ( ; member != MemberEnd(); ++member) + if (name.StringEqual(member->name)) + break; + return member; + } + template <typename SourceAllocator> ConstMemberIterator FindMember(const GenericValue<Encoding, SourceAllocator>& name) const { return const_cast<GenericValue&>(*this).FindMember(name); } + +#if RAPIDJSON_HAS_STDSTRING + //! Find member by string object name. + /*! + \param name Member name to be searched. + \pre IsObject() == true + \return Iterator to member, if it exists. + Otherwise returns \ref MemberEnd(). + */ + MemberIterator FindMember(const std::basic_string<Ch>& name) { return FindMember(GenericValue(StringRef(name))); } + ConstMemberIterator FindMember(const std::basic_string<Ch>& name) const { return FindMember(GenericValue(StringRef(name))); } +#endif + + //! Add a member (name-value pair) to the object. + /*! \param name A string value as name of member. + \param value Value of any type. + \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \note The ownership of \c name and \c value will be transferred to this object on success. + \pre IsObject() && name.IsString() + \post name.IsNull() && value.IsNull() + \note Amortized Constant time complexity. + */ + GenericValue& AddMember(GenericValue& name, GenericValue& value, Allocator& allocator) { + RAPIDJSON_ASSERT(IsObject()); + RAPIDJSON_ASSERT(name.IsString()); + + ObjectData& o = data_.o; + if (o.size >= o.capacity) + MemberReserve(o.capacity == 0 ? kDefaultObjectCapacity : (o.capacity + (o.capacity + 1) / 2), allocator); + Member* members = GetMembersPointer(); + members[o.size].name.RawAssign(name); + members[o.size].value.RawAssign(value); + o.size++; + return *this; + } + + //! Add a constant string value as member (name-value pair) to the object. + /*! \param name A string value as name of member. + \param value constant string reference as value of member. + \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \pre IsObject() + \note This overload is needed to avoid clashes with the generic primitive type AddMember(GenericValue&,T,Allocator&) overload below. + \note Amortized Constant time complexity. + */ + GenericValue& AddMember(GenericValue& name, StringRefType value, Allocator& allocator) { + GenericValue v(value); + return AddMember(name, v, allocator); + } + +#if RAPIDJSON_HAS_STDSTRING + //! Add a string object as member (name-value pair) to the object. + /*! \param name A string value as name of member. + \param value constant string reference as value of member. + \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \pre IsObject() + \note This overload is needed to avoid clashes with the generic primitive type AddMember(GenericValue&,T,Allocator&) overload below. + \note Amortized Constant time complexity. + */ + GenericValue& AddMember(GenericValue& name, std::basic_string<Ch>& value, Allocator& allocator) { + GenericValue v(value, allocator); + return AddMember(name, v, allocator); + } +#endif + + //! Add any primitive value as member (name-value pair) to the object. + /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t + \param name A string value as name of member. + \param value Value of primitive type \c T as value of member + \param allocator Allocator for reallocating memory. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \pre IsObject() + + \note The source type \c T explicitly disallows all pointer types, + especially (\c const) \ref Ch*. This helps avoiding implicitly + referencing character strings with insufficient lifetime, use + \ref AddMember(StringRefType, GenericValue&, Allocator&) or \ref + AddMember(StringRefType, StringRefType, Allocator&). + All other pointer types would implicitly convert to \c bool, + use an explicit cast instead, if needed. + \note Amortized Constant time complexity. + */ + template <typename T> + RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (GenericValue&)) + AddMember(GenericValue& name, T value, Allocator& allocator) { + GenericValue v(value); + return AddMember(name, v, allocator); + } + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + GenericValue& AddMember(GenericValue&& name, GenericValue&& value, Allocator& allocator) { + return AddMember(name, value, allocator); + } + GenericValue& AddMember(GenericValue&& name, GenericValue& value, Allocator& allocator) { + return AddMember(name, value, allocator); + } + GenericValue& AddMember(GenericValue& name, GenericValue&& value, Allocator& allocator) { + return AddMember(name, value, allocator); + } + GenericValue& AddMember(StringRefType name, GenericValue&& value, Allocator& allocator) { + GenericValue n(name); + return AddMember(n, value, allocator); + } +#endif // RAPIDJSON_HAS_CXX11_RVALUE_REFS + + + //! Add a member (name-value pair) to the object. + /*! \param name A constant string reference as name of member. + \param value Value of any type. + \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \note The ownership of \c value will be transferred to this object on success. + \pre IsObject() + \post value.IsNull() + \note Amortized Constant time complexity. + */ + GenericValue& AddMember(StringRefType name, GenericValue& value, Allocator& allocator) { + GenericValue n(name); + return AddMember(n, value, allocator); + } + + //! Add a constant string value as member (name-value pair) to the object. + /*! \param name A constant string reference as name of member. + \param value constant string reference as value of member. + \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \pre IsObject() + \note This overload is needed to avoid clashes with the generic primitive type AddMember(StringRefType,T,Allocator&) overload below. + \note Amortized Constant time complexity. + */ + GenericValue& AddMember(StringRefType name, StringRefType value, Allocator& allocator) { + GenericValue v(value); + return AddMember(name, v, allocator); + } + + //! Add any primitive value as member (name-value pair) to the object. + /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t + \param name A constant string reference as name of member. + \param value Value of primitive type \c T as value of member + \param allocator Allocator for reallocating memory. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \pre IsObject() + + \note The source type \c T explicitly disallows all pointer types, + especially (\c const) \ref Ch*. This helps avoiding implicitly + referencing character strings with insufficient lifetime, use + \ref AddMember(StringRefType, GenericValue&, Allocator&) or \ref + AddMember(StringRefType, StringRefType, Allocator&). + All other pointer types would implicitly convert to \c bool, + use an explicit cast instead, if needed. + \note Amortized Constant time complexity. + */ + template <typename T> + RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (GenericValue&)) + AddMember(StringRefType name, T value, Allocator& allocator) { + GenericValue n(name); + return AddMember(n, value, allocator); + } + + //! Remove all members in the object. + /*! This function do not deallocate memory in the object, i.e. the capacity is unchanged. + \note Linear time complexity. + */ + void RemoveAllMembers() { + RAPIDJSON_ASSERT(IsObject()); + for (MemberIterator m = MemberBegin(); m != MemberEnd(); ++m) + m->~Member(); + data_.o.size = 0; + } + + //! Remove a member in object by its name. + /*! \param name Name of member to be removed. + \return Whether the member existed. + \note This function may reorder the object members. Use \ref + EraseMember(ConstMemberIterator) if you need to preserve the + relative order of the remaining members. + \note Linear time complexity. + */ + bool RemoveMember(const Ch* name) { + GenericValue n(StringRef(name)); + return RemoveMember(n); + } + +#if RAPIDJSON_HAS_STDSTRING + bool RemoveMember(const std::basic_string<Ch>& name) { return RemoveMember(GenericValue(StringRef(name))); } +#endif + + template <typename SourceAllocator> + bool RemoveMember(const GenericValue<Encoding, SourceAllocator>& name) { + MemberIterator m = FindMember(name); + if (m != MemberEnd()) { + RemoveMember(m); + return true; + } + else + return false; + } + + //! Remove a member in object by iterator. + /*! \param m member iterator (obtained by FindMember() or MemberBegin()). + \return the new iterator after removal. + \note This function may reorder the object members. Use \ref + EraseMember(ConstMemberIterator) if you need to preserve the + relative order of the remaining members. + \note Constant time complexity. + */ + MemberIterator RemoveMember(MemberIterator m) { + RAPIDJSON_ASSERT(IsObject()); + RAPIDJSON_ASSERT(data_.o.size > 0); + RAPIDJSON_ASSERT(GetMembersPointer() != 0); + RAPIDJSON_ASSERT(m >= MemberBegin() && m < MemberEnd()); + + MemberIterator last(GetMembersPointer() + (data_.o.size - 1)); + if (data_.o.size > 1 && m != last) + *m = *last; // Move the last one to this place + else + m->~Member(); // Only one left, just destroy + --data_.o.size; + return m; + } + + //! Remove a member from an object by iterator. + /*! \param pos iterator to the member to remove + \pre IsObject() == true && \ref MemberBegin() <= \c pos < \ref MemberEnd() + \return Iterator following the removed element. + If the iterator \c pos refers to the last element, the \ref MemberEnd() iterator is returned. + \note This function preserves the relative order of the remaining object + members. If you do not need this, use the more efficient \ref RemoveMember(MemberIterator). + \note Linear time complexity. + */ + MemberIterator EraseMember(ConstMemberIterator pos) { + return EraseMember(pos, pos +1); + } + + //! Remove members in the range [first, last) from an object. + /*! \param first iterator to the first member to remove + \param last iterator following the last member to remove + \pre IsObject() == true && \ref MemberBegin() <= \c first <= \c last <= \ref MemberEnd() + \return Iterator following the last removed element. + \note This function preserves the relative order of the remaining object + members. + \note Linear time complexity. + */ + MemberIterator EraseMember(ConstMemberIterator first, ConstMemberIterator last) { + RAPIDJSON_ASSERT(IsObject()); + RAPIDJSON_ASSERT(data_.o.size > 0); + RAPIDJSON_ASSERT(GetMembersPointer() != 0); + RAPIDJSON_ASSERT(first >= MemberBegin()); + RAPIDJSON_ASSERT(first <= last); + RAPIDJSON_ASSERT(last <= MemberEnd()); + + MemberIterator pos = MemberBegin() + (first - MemberBegin()); + for (MemberIterator itr = pos; itr != last; ++itr) + itr->~Member(); + std::memmove(static_cast<void*>(&*pos), &*last, static_cast<size_t>(MemberEnd() - last) * sizeof(Member)); + data_.o.size -= static_cast<SizeType>(last - first); + return pos; + } + + //! Erase a member in object by its name. + /*! \param name Name of member to be removed. + \return Whether the member existed. + \note Linear time complexity. + */ + bool EraseMember(const Ch* name) { + GenericValue n(StringRef(name)); + return EraseMember(n); + } + +#if RAPIDJSON_HAS_STDSTRING + bool EraseMember(const std::basic_string<Ch>& name) { return EraseMember(GenericValue(StringRef(name))); } +#endif + + template <typename SourceAllocator> + bool EraseMember(const GenericValue<Encoding, SourceAllocator>& name) { + MemberIterator m = FindMember(name); + if (m != MemberEnd()) { + EraseMember(m); + return true; + } + else + return false; + } + + Object GetObject() { RAPIDJSON_ASSERT(IsObject()); return Object(*this); } + ConstObject GetObject() const { RAPIDJSON_ASSERT(IsObject()); return ConstObject(*this); } + + //@} + + //!@name Array + //@{ + + //! Set this value as an empty array. + /*! \post IsArray == true */ + GenericValue& SetArray() { this->~GenericValue(); new (this) GenericValue(kArrayType); return *this; } + + //! Get the number of elements in array. + SizeType Size() const { RAPIDJSON_ASSERT(IsArray()); return data_.a.size; } + + //! Get the capacity of array. + SizeType Capacity() const { RAPIDJSON_ASSERT(IsArray()); return data_.a.capacity; } + + //! Check whether the array is empty. + bool Empty() const { RAPIDJSON_ASSERT(IsArray()); return data_.a.size == 0; } + + //! Remove all elements in the array. + /*! This function do not deallocate memory in the array, i.e. the capacity is unchanged. + \note Linear time complexity. + */ + void Clear() { + RAPIDJSON_ASSERT(IsArray()); + GenericValue* e = GetElementsPointer(); + for (GenericValue* v = e; v != e + data_.a.size; ++v) + v->~GenericValue(); + data_.a.size = 0; + } + + //! Get an element from array by index. + /*! \pre IsArray() == true + \param index Zero-based index of element. + \see operator[](T*) + */ + GenericValue& operator[](SizeType index) { + RAPIDJSON_ASSERT(IsArray()); + RAPIDJSON_ASSERT(index < data_.a.size); + return GetElementsPointer()[index]; + } + const GenericValue& operator[](SizeType index) const { return const_cast<GenericValue&>(*this)[index]; } + + //! Element iterator + /*! \pre IsArray() == true */ + ValueIterator Begin() { RAPIDJSON_ASSERT(IsArray()); return GetElementsPointer(); } + //! \em Past-the-end element iterator + /*! \pre IsArray() == true */ + ValueIterator End() { RAPIDJSON_ASSERT(IsArray()); return GetElementsPointer() + data_.a.size; } + //! Constant element iterator + /*! \pre IsArray() == true */ + ConstValueIterator Begin() const { return const_cast<GenericValue&>(*this).Begin(); } + //! Constant \em past-the-end element iterator + /*! \pre IsArray() == true */ + ConstValueIterator End() const { return const_cast<GenericValue&>(*this).End(); } + + //! Request the array to have enough capacity to store elements. + /*! \param newCapacity The capacity that the array at least need to have. + \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \note Linear time complexity. + */ + GenericValue& Reserve(SizeType newCapacity, Allocator &allocator) { + RAPIDJSON_ASSERT(IsArray()); + if (newCapacity > data_.a.capacity) { + SetElementsPointer(reinterpret_cast<GenericValue*>(allocator.Realloc(GetElementsPointer(), data_.a.capacity * sizeof(GenericValue), newCapacity * sizeof(GenericValue)))); + data_.a.capacity = newCapacity; + } + return *this; + } + + //! Append a GenericValue at the end of the array. + /*! \param value Value to be appended. + \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator(). + \pre IsArray() == true + \post value.IsNull() == true + \return The value itself for fluent API. + \note The ownership of \c value will be transferred to this array on success. + \note If the number of elements to be appended is known, calls Reserve() once first may be more efficient. + \note Amortized constant time complexity. + */ + GenericValue& PushBack(GenericValue& value, Allocator& allocator) { + RAPIDJSON_ASSERT(IsArray()); + if (data_.a.size >= data_.a.capacity) + Reserve(data_.a.capacity == 0 ? kDefaultArrayCapacity : (data_.a.capacity + (data_.a.capacity + 1) / 2), allocator); + GetElementsPointer()[data_.a.size++].RawAssign(value); + return *this; + } + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + GenericValue& PushBack(GenericValue&& value, Allocator& allocator) { + return PushBack(value, allocator); + } +#endif // RAPIDJSON_HAS_CXX11_RVALUE_REFS + + //! Append a constant string reference at the end of the array. + /*! \param value Constant string reference to be appended. + \param allocator Allocator for reallocating memory. It must be the same one used previously. Commonly use GenericDocument::GetAllocator(). + \pre IsArray() == true + \return The value itself for fluent API. + \note If the number of elements to be appended is known, calls Reserve() once first may be more efficient. + \note Amortized constant time complexity. + \see GenericStringRef + */ + GenericValue& PushBack(StringRefType value, Allocator& allocator) { + return (*this).template PushBack<StringRefType>(value, allocator); + } + + //! Append a primitive value at the end of the array. + /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t + \param value Value of primitive type T to be appended. + \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator(). + \pre IsArray() == true + \return The value itself for fluent API. + \note If the number of elements to be appended is known, calls Reserve() once first may be more efficient. + + \note The source type \c T explicitly disallows all pointer types, + especially (\c const) \ref Ch*. This helps avoiding implicitly + referencing character strings with insufficient lifetime, use + \ref PushBack(GenericValue&, Allocator&) or \ref + PushBack(StringRefType, Allocator&). + All other pointer types would implicitly convert to \c bool, + use an explicit cast instead, if needed. + \note Amortized constant time complexity. + */ + template <typename T> + RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (GenericValue&)) + PushBack(T value, Allocator& allocator) { + GenericValue v(value); + return PushBack(v, allocator); + } + + //! Remove the last element in the array. + /*! + \note Constant time complexity. + */ + GenericValue& PopBack() { + RAPIDJSON_ASSERT(IsArray()); + RAPIDJSON_ASSERT(!Empty()); + GetElementsPointer()[--data_.a.size].~GenericValue(); + return *this; + } + + //! Remove an element of array by iterator. + /*! + \param pos iterator to the element to remove + \pre IsArray() == true && \ref Begin() <= \c pos < \ref End() + \return Iterator following the removed element. If the iterator pos refers to the last element, the End() iterator is returned. + \note Linear time complexity. + */ + ValueIterator Erase(ConstValueIterator pos) { + return Erase(pos, pos + 1); + } + + //! Remove elements in the range [first, last) of the array. + /*! + \param first iterator to the first element to remove + \param last iterator following the last element to remove + \pre IsArray() == true && \ref Begin() <= \c first <= \c last <= \ref End() + \return Iterator following the last removed element. + \note Linear time complexity. + */ + ValueIterator Erase(ConstValueIterator first, ConstValueIterator last) { + RAPIDJSON_ASSERT(IsArray()); + RAPIDJSON_ASSERT(data_.a.size > 0); + RAPIDJSON_ASSERT(GetElementsPointer() != 0); + RAPIDJSON_ASSERT(first >= Begin()); + RAPIDJSON_ASSERT(first <= last); + RAPIDJSON_ASSERT(last <= End()); + ValueIterator pos = Begin() + (first - Begin()); + for (ValueIterator itr = pos; itr != last; ++itr) + itr->~GenericValue(); + std::memmove(static_cast<void*>(pos), last, static_cast<size_t>(End() - last) * sizeof(GenericValue)); + data_.a.size -= static_cast<SizeType>(last - first); + return pos; + } + + Array GetArray() { RAPIDJSON_ASSERT(IsArray()); return Array(*this); } + ConstArray GetArray() const { RAPIDJSON_ASSERT(IsArray()); return ConstArray(*this); } + + //@} + + //!@name Number + //@{ + + int GetInt() const { RAPIDJSON_ASSERT(data_.f.flags & kIntFlag); return data_.n.i.i; } + unsigned GetUint() const { RAPIDJSON_ASSERT(data_.f.flags & kUintFlag); return data_.n.u.u; } + int64_t GetInt64() const { RAPIDJSON_ASSERT(data_.f.flags & kInt64Flag); return data_.n.i64; } + uint64_t GetUint64() const { RAPIDJSON_ASSERT(data_.f.flags & kUint64Flag); return data_.n.u64; } + + //! Get the value as double type. + /*! \note If the value is 64-bit integer type, it may lose precision. Use \c IsLosslessDouble() to check whether the converison is lossless. + */ + double GetDouble() const { + RAPIDJSON_ASSERT(IsNumber()); + if ((data_.f.flags & kDoubleFlag) != 0) return data_.n.d; // exact type, no conversion. + if ((data_.f.flags & kIntFlag) != 0) return data_.n.i.i; // int -> double + if ((data_.f.flags & kUintFlag) != 0) return data_.n.u.u; // unsigned -> double + if ((data_.f.flags & kInt64Flag) != 0) return static_cast<double>(data_.n.i64); // int64_t -> double (may lose precision) + RAPIDJSON_ASSERT((data_.f.flags & kUint64Flag) != 0); return static_cast<double>(data_.n.u64); // uint64_t -> double (may lose precision) + } + + //! Get the value as float type. + /*! \note If the value is 64-bit integer type, it may lose precision. Use \c IsLosslessFloat() to check whether the converison is lossless. + */ + float GetFloat() const { + return static_cast<float>(GetDouble()); + } + + GenericValue& SetInt(int i) { this->~GenericValue(); new (this) GenericValue(i); return *this; } + GenericValue& SetUint(unsigned u) { this->~GenericValue(); new (this) GenericValue(u); return *this; } + GenericValue& SetInt64(int64_t i64) { this->~GenericValue(); new (this) GenericValue(i64); return *this; } + GenericValue& SetUint64(uint64_t u64) { this->~GenericValue(); new (this) GenericValue(u64); return *this; } + GenericValue& SetDouble(double d) { this->~GenericValue(); new (this) GenericValue(d); return *this; } + GenericValue& SetFloat(float f) { this->~GenericValue(); new (this) GenericValue(static_cast<double>(f)); return *this; } + + //@} + + //!@name String + //@{ + + const Ch* GetString() const { RAPIDJSON_ASSERT(IsString()); return (data_.f.flags & kInlineStrFlag) ? data_.ss.str : GetStringPointer(); } + + //! Get the length of string. + /*! Since rapidjson permits "\\u0000" in the json string, strlen(v.GetString()) may not equal to v.GetStringLength(). + */ + SizeType GetStringLength() const { RAPIDJSON_ASSERT(IsString()); return ((data_.f.flags & kInlineStrFlag) ? (data_.ss.GetLength()) : data_.s.length); } + + //! Set this value as a string without copying source string. + /*! This version has better performance with supplied length, and also support string containing null character. + \param s source string pointer. + \param length The length of source string, excluding the trailing null terminator. + \return The value itself for fluent API. + \post IsString() == true && GetString() == s && GetStringLength() == length + \see SetString(StringRefType) + */ + GenericValue& SetString(const Ch* s, SizeType length) { return SetString(StringRef(s, length)); } + + //! Set this value as a string without copying source string. + /*! \param s source string reference + \return The value itself for fluent API. + \post IsString() == true && GetString() == s && GetStringLength() == s.length + */ + GenericValue& SetString(StringRefType s) { this->~GenericValue(); SetStringRaw(s); return *this; } + + //! Set this value as a string by copying from source string. + /*! This version has better performance with supplied length, and also support string containing null character. + \param s source string. + \param length The length of source string, excluding the trailing null terminator. + \param allocator Allocator for allocating copied buffer. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \post IsString() == true && GetString() != s && strcmp(GetString(),s) == 0 && GetStringLength() == length + */ + GenericValue& SetString(const Ch* s, SizeType length, Allocator& allocator) { return SetString(StringRef(s, length), allocator); } + + //! Set this value as a string by copying from source string. + /*! \param s source string. + \param allocator Allocator for allocating copied buffer. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \post IsString() == true && GetString() != s && strcmp(GetString(),s) == 0 && GetStringLength() == length + */ + GenericValue& SetString(const Ch* s, Allocator& allocator) { return SetString(StringRef(s), allocator); } + + //! Set this value as a string by copying from source string. + /*! \param s source string reference + \param allocator Allocator for allocating copied buffer. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \post IsString() == true && GetString() != s.s && strcmp(GetString(),s) == 0 && GetStringLength() == length + */ + GenericValue& SetString(StringRefType s, Allocator& allocator) { this->~GenericValue(); SetStringRaw(s, allocator); return *this; } + +#if RAPIDJSON_HAS_STDSTRING + //! Set this value as a string by copying from source string. + /*! \param s source string. + \param allocator Allocator for allocating copied buffer. Commonly use GenericDocument::GetAllocator(). + \return The value itself for fluent API. + \post IsString() == true && GetString() != s.data() && strcmp(GetString(),s.data() == 0 && GetStringLength() == s.size() + \note Requires the definition of the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING. + */ + GenericValue& SetString(const std::basic_string<Ch>& s, Allocator& allocator) { return SetString(StringRef(s), allocator); } +#endif + + //@} + + //!@name Array + //@{ + + //! Templated version for checking whether this value is type T. + /*! + \tparam T Either \c bool, \c int, \c unsigned, \c int64_t, \c uint64_t, \c double, \c float, \c const \c char*, \c std::basic_string<Ch> + */ + template <typename T> + bool Is() const { return internal::TypeHelper<ValueType, T>::Is(*this); } + + template <typename T> + T Get() const { return internal::TypeHelper<ValueType, T>::Get(*this); } + + template <typename T> + T Get() { return internal::TypeHelper<ValueType, T>::Get(*this); } + + template<typename T> + ValueType& Set(const T& data) { return internal::TypeHelper<ValueType, T>::Set(*this, data); } + + template<typename T> + ValueType& Set(const T& data, AllocatorType& allocator) { return internal::TypeHelper<ValueType, T>::Set(*this, data, allocator); } + + //@} + + //! Generate events of this value to a Handler. + /*! This function adopts the GoF visitor pattern. + Typical usage is to output this JSON value as JSON text via Writer, which is a Handler. + It can also be used to deep clone this value via GenericDocument, which is also a Handler. + \tparam Handler type of handler. + \param handler An object implementing concept Handler. + */ + template <typename Handler> + bool Accept(Handler& handler) const { + switch(GetType()) { + case kNullType: return handler.Null(); + case kFalseType: return handler.Bool(false); + case kTrueType: return handler.Bool(true); + + case kObjectType: + if (RAPIDJSON_UNLIKELY(!handler.StartObject())) + return false; + for (ConstMemberIterator m = MemberBegin(); m != MemberEnd(); ++m) { + RAPIDJSON_ASSERT(m->name.IsString()); // User may change the type of name by MemberIterator. + if (RAPIDJSON_UNLIKELY(!handler.Key(m->name.GetString(), m->name.GetStringLength(), (m->name.data_.f.flags & kCopyFlag) != 0))) + return false; + if (RAPIDJSON_UNLIKELY(!m->value.Accept(handler))) + return false; + } + return handler.EndObject(data_.o.size); + + case kArrayType: + if (RAPIDJSON_UNLIKELY(!handler.StartArray())) + return false; + for (const GenericValue* v = Begin(); v != End(); ++v) + if (RAPIDJSON_UNLIKELY(!v->Accept(handler))) + return false; + return handler.EndArray(data_.a.size); + + case kStringType: + return handler.String(GetString(), GetStringLength(), (data_.f.flags & kCopyFlag) != 0); + + default: + RAPIDJSON_ASSERT(GetType() == kNumberType); + if (IsDouble()) return handler.Double(data_.n.d); + else if (IsInt()) return handler.Int(data_.n.i.i); + else if (IsUint()) return handler.Uint(data_.n.u.u); + else if (IsInt64()) return handler.Int64(data_.n.i64); + else return handler.Uint64(data_.n.u64); + } + } + +private: + template <typename, typename> friend class GenericValue; + template <typename, typename, typename> friend class GenericDocument; + + enum { + kBoolFlag = 0x0008, + kNumberFlag = 0x0010, + kIntFlag = 0x0020, + kUintFlag = 0x0040, + kInt64Flag = 0x0080, + kUint64Flag = 0x0100, + kDoubleFlag = 0x0200, + kStringFlag = 0x0400, + kCopyFlag = 0x0800, + kInlineStrFlag = 0x1000, + + // Initial flags of different types. + kNullFlag = kNullType, + kTrueFlag = kTrueType | kBoolFlag, + kFalseFlag = kFalseType | kBoolFlag, + kNumberIntFlag = kNumberType | kNumberFlag | kIntFlag | kInt64Flag, + kNumberUintFlag = kNumberType | kNumberFlag | kUintFlag | kUint64Flag | kInt64Flag, + kNumberInt64Flag = kNumberType | kNumberFlag | kInt64Flag, + kNumberUint64Flag = kNumberType | kNumberFlag | kUint64Flag, + kNumberDoubleFlag = kNumberType | kNumberFlag | kDoubleFlag, + kNumberAnyFlag = kNumberType | kNumberFlag | kIntFlag | kInt64Flag | kUintFlag | kUint64Flag | kDoubleFlag, + kConstStringFlag = kStringType | kStringFlag, + kCopyStringFlag = kStringType | kStringFlag | kCopyFlag, + kShortStringFlag = kStringType | kStringFlag | kCopyFlag | kInlineStrFlag, + kObjectFlag = kObjectType, + kArrayFlag = kArrayType, + + kTypeMask = 0x07 + }; + + static const SizeType kDefaultArrayCapacity = RAPIDJSON_VALUE_DEFAULT_ARRAY_CAPACITY; + static const SizeType kDefaultObjectCapacity = RAPIDJSON_VALUE_DEFAULT_OBJECT_CAPACITY; + + struct Flag { +#if RAPIDJSON_48BITPOINTER_OPTIMIZATION + char payload[sizeof(SizeType) * 2 + 6]; // 2 x SizeType + lower 48-bit pointer +#elif RAPIDJSON_64BIT + char payload[sizeof(SizeType) * 2 + sizeof(void*) + 6]; // 6 padding bytes +#else + char payload[sizeof(SizeType) * 2 + sizeof(void*) + 2]; // 2 padding bytes +#endif + uint16_t flags; + }; + + struct String { + SizeType length; + SizeType hashcode; //!< reserved + const Ch* str; + }; // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode + + // implementation detail: ShortString can represent zero-terminated strings up to MaxSize chars + // (excluding the terminating zero) and store a value to determine the length of the contained + // string in the last character str[LenPos] by storing "MaxSize - length" there. If the string + // to store has the maximal length of MaxSize then str[LenPos] will be 0 and therefore act as + // the string terminator as well. For getting the string length back from that value just use + // "MaxSize - str[LenPos]". + // This allows to store 13-chars strings in 32-bit mode, 21-chars strings in 64-bit mode, + // 13-chars strings for RAPIDJSON_48BITPOINTER_OPTIMIZATION=1 inline (for `UTF8`-encoded strings). + struct ShortString { + enum { MaxChars = sizeof(static_cast<Flag*>(0)->payload) / sizeof(Ch), MaxSize = MaxChars - 1, LenPos = MaxSize }; + Ch str[MaxChars]; + + inline static bool Usable(SizeType len) { return (MaxSize >= len); } + inline void SetLength(SizeType len) { str[LenPos] = static_cast<Ch>(MaxSize - len); } + inline SizeType GetLength() const { return static_cast<SizeType>(MaxSize - str[LenPos]); } + }; // at most as many bytes as "String" above => 12 bytes in 32-bit mode, 16 bytes in 64-bit mode + + // By using proper binary layout, retrieval of different integer types do not need conversions. + union Number { +#if RAPIDJSON_ENDIAN == RAPIDJSON_LITTLEENDIAN + struct I { + int i; + char padding[4]; + }i; + struct U { + unsigned u; + char padding2[4]; + }u; +#else + struct I { + char padding[4]; + int i; + }i; + struct U { + char padding2[4]; + unsigned u; + }u; +#endif + int64_t i64; + uint64_t u64; + double d; + }; // 8 bytes + + struct ObjectData { + SizeType size; + SizeType capacity; + Member* members; + }; // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode + + struct ArrayData { + SizeType size; + SizeType capacity; + GenericValue* elements; + }; // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode + + union Data { + String s; + ShortString ss; + Number n; + ObjectData o; + ArrayData a; + Flag f; + }; // 16 bytes in 32-bit mode, 24 bytes in 64-bit mode, 16 bytes in 64-bit with RAPIDJSON_48BITPOINTER_OPTIMIZATION + + RAPIDJSON_FORCEINLINE const Ch* GetStringPointer() const { return RAPIDJSON_GETPOINTER(Ch, data_.s.str); } + RAPIDJSON_FORCEINLINE const Ch* SetStringPointer(const Ch* str) { return RAPIDJSON_SETPOINTER(Ch, data_.s.str, str); } + RAPIDJSON_FORCEINLINE GenericValue* GetElementsPointer() const { return RAPIDJSON_GETPOINTER(GenericValue, data_.a.elements); } + RAPIDJSON_FORCEINLINE GenericValue* SetElementsPointer(GenericValue* elements) { return RAPIDJSON_SETPOINTER(GenericValue, data_.a.elements, elements); } + RAPIDJSON_FORCEINLINE Member* GetMembersPointer() const { return RAPIDJSON_GETPOINTER(Member, data_.o.members); } + RAPIDJSON_FORCEINLINE Member* SetMembersPointer(Member* members) { return RAPIDJSON_SETPOINTER(Member, data_.o.members, members); } + + // Initialize this value as array with initial data, without calling destructor. + void SetArrayRaw(GenericValue* values, SizeType count, Allocator& allocator) { + data_.f.flags = kArrayFlag; + if (count) { + GenericValue* e = static_cast<GenericValue*>(allocator.Malloc(count * sizeof(GenericValue))); + SetElementsPointer(e); + std::memcpy(static_cast<void*>(e), values, count * sizeof(GenericValue)); + } + else + SetElementsPointer(0); + data_.a.size = data_.a.capacity = count; + } + + //! Initialize this value as object with initial data, without calling destructor. + void SetObjectRaw(Member* members, SizeType count, Allocator& allocator) { + data_.f.flags = kObjectFlag; + if (count) { + Member* m = static_cast<Member*>(allocator.Malloc(count * sizeof(Member))); + SetMembersPointer(m); + std::memcpy(static_cast<void*>(m), members, count * sizeof(Member)); + } + else + SetMembersPointer(0); + data_.o.size = data_.o.capacity = count; + } + + //! Initialize this value as constant string, without calling destructor. + void SetStringRaw(StringRefType s) RAPIDJSON_NOEXCEPT { + data_.f.flags = kConstStringFlag; + SetStringPointer(s); + data_.s.length = s.length; + } + + //! Initialize this value as copy string with initial data, without calling destructor. + void SetStringRaw(StringRefType s, Allocator& allocator) { + Ch* str = 0; + if (ShortString::Usable(s.length)) { + data_.f.flags = kShortStringFlag; + data_.ss.SetLength(s.length); + str = data_.ss.str; + } else { + data_.f.flags = kCopyStringFlag; + data_.s.length = s.length; + str = static_cast<Ch *>(allocator.Malloc((s.length + 1) * sizeof(Ch))); + SetStringPointer(str); + } + std::memcpy(str, s, s.length * sizeof(Ch)); + str[s.length] = '\0'; + } + + //! Assignment without calling destructor + void RawAssign(GenericValue& rhs) RAPIDJSON_NOEXCEPT { + data_ = rhs.data_; + // data_.f.flags = rhs.data_.f.flags; + rhs.data_.f.flags = kNullFlag; + } + + template <typename SourceAllocator> + bool StringEqual(const GenericValue<Encoding, SourceAllocator>& rhs) const { + RAPIDJSON_ASSERT(IsString()); + RAPIDJSON_ASSERT(rhs.IsString()); + + const SizeType len1 = GetStringLength(); + const SizeType len2 = rhs.GetStringLength(); + if(len1 != len2) { return false; } + + const Ch* const str1 = GetString(); + const Ch* const str2 = rhs.GetString(); + if(str1 == str2) { return true; } // fast path for constant string + + return (std::memcmp(str1, str2, sizeof(Ch) * len1) == 0); + } + + Data data_; +}; + +//! GenericValue with UTF8 encoding +typedef GenericValue<UTF8<> > Value; + +/////////////////////////////////////////////////////////////////////////////// +// GenericDocument + +//! A document for parsing JSON text as DOM. +/*! + \note implements Handler concept + \tparam Encoding Encoding for both parsing and string storage. + \tparam Allocator Allocator for allocating memory for the DOM + \tparam StackAllocator Allocator for allocating memory for stack during parsing. + \warning Although GenericDocument inherits from GenericValue, the API does \b not provide any virtual functions, especially no virtual destructor. To avoid memory leaks, do not \c delete a GenericDocument object via a pointer to a GenericValue. +*/ +template <typename Encoding, typename Allocator = RAPIDJSON_DEFAULT_ALLOCATOR, typename StackAllocator = RAPIDJSON_DEFAULT_STACK_ALLOCATOR > +class GenericDocument : public GenericValue<Encoding, Allocator> { +public: + typedef typename Encoding::Ch Ch; //!< Character type derived from Encoding. + typedef GenericValue<Encoding, Allocator> ValueType; //!< Value type of the document. + typedef Allocator AllocatorType; //!< Allocator type from template parameter. + + //! Constructor + /*! Creates an empty document of specified type. + \param type Mandatory type of object to create. + \param allocator Optional allocator for allocating memory. + \param stackCapacity Optional initial capacity of stack in bytes. + \param stackAllocator Optional allocator for allocating memory for stack. + */ + explicit GenericDocument(Type type, Allocator* allocator = 0, size_t stackCapacity = kDefaultStackCapacity, StackAllocator* stackAllocator = 0) : + GenericValue<Encoding, Allocator>(type), allocator_(allocator), ownAllocator_(0), stack_(stackAllocator, stackCapacity), parseResult_() + { + if (!allocator_) + ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)(); + } + + //! Constructor + /*! Creates an empty document which type is Null. + \param allocator Optional allocator for allocating memory. + \param stackCapacity Optional initial capacity of stack in bytes. + \param stackAllocator Optional allocator for allocating memory for stack. + */ + GenericDocument(Allocator* allocator = 0, size_t stackCapacity = kDefaultStackCapacity, StackAllocator* stackAllocator = 0) : + allocator_(allocator), ownAllocator_(0), stack_(stackAllocator, stackCapacity), parseResult_() + { + if (!allocator_) + ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)(); + } + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + //! Move constructor in C++11 + GenericDocument(GenericDocument&& rhs) RAPIDJSON_NOEXCEPT + : ValueType(std::forward<ValueType>(rhs)), // explicit cast to avoid prohibited move from Document + allocator_(rhs.allocator_), + ownAllocator_(rhs.ownAllocator_), + stack_(std::move(rhs.stack_)), + parseResult_(rhs.parseResult_) + { + rhs.allocator_ = 0; + rhs.ownAllocator_ = 0; + rhs.parseResult_ = ParseResult(); + } +#endif + + ~GenericDocument() { + Destroy(); + } + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + //! Move assignment in C++11 + GenericDocument& operator=(GenericDocument&& rhs) RAPIDJSON_NOEXCEPT + { + // The cast to ValueType is necessary here, because otherwise it would + // attempt to call GenericValue's templated assignment operator. + ValueType::operator=(std::forward<ValueType>(rhs)); + + // Calling the destructor here would prematurely call stack_'s destructor + Destroy(); + + allocator_ = rhs.allocator_; + ownAllocator_ = rhs.ownAllocator_; + stack_ = std::move(rhs.stack_); + parseResult_ = rhs.parseResult_; + + rhs.allocator_ = 0; + rhs.ownAllocator_ = 0; + rhs.parseResult_ = ParseResult(); + + return *this; + } +#endif + + //! Exchange the contents of this document with those of another. + /*! + \param rhs Another document. + \note Constant complexity. + \see GenericValue::Swap + */ + GenericDocument& Swap(GenericDocument& rhs) RAPIDJSON_NOEXCEPT { + ValueType::Swap(rhs); + stack_.Swap(rhs.stack_); + internal::Swap(allocator_, rhs.allocator_); + internal::Swap(ownAllocator_, rhs.ownAllocator_); + internal::Swap(parseResult_, rhs.parseResult_); + return *this; + } + + // Allow Swap with ValueType. + // Refer to Effective C++ 3rd Edition/Item 33: Avoid hiding inherited names. + using ValueType::Swap; + + //! free-standing swap function helper + /*! + Helper function to enable support for common swap implementation pattern based on \c std::swap: + \code + void swap(MyClass& a, MyClass& b) { + using std::swap; + swap(a.doc, b.doc); + // ... + } + \endcode + \see Swap() + */ + friend inline void swap(GenericDocument& a, GenericDocument& b) RAPIDJSON_NOEXCEPT { a.Swap(b); } + + //! Populate this document by a generator which produces SAX events. + /*! \tparam Generator A functor with <tt>bool f(Handler)</tt> prototype. + \param g Generator functor which sends SAX events to the parameter. + \return The document itself for fluent API. + */ + template <typename Generator> + GenericDocument& Populate(Generator& g) { + ClearStackOnExit scope(*this); + if (g(*this)) { + RAPIDJSON_ASSERT(stack_.GetSize() == sizeof(ValueType)); // Got one and only one root object + ValueType::operator=(*stack_.template Pop<ValueType>(1));// Move value from stack to document + } + return *this; + } + + //!@name Parse from stream + //!@{ + + //! Parse JSON text from an input stream (with Encoding conversion) + /*! \tparam parseFlags Combination of \ref ParseFlag. + \tparam SourceEncoding Encoding of input stream + \tparam InputStream Type of input stream, implementing Stream concept + \param is Input stream to be parsed. + \return The document itself for fluent API. + */ + template <unsigned parseFlags, typename SourceEncoding, typename InputStream> + GenericDocument& ParseStream(InputStream& is) { + GenericReader<SourceEncoding, Encoding, StackAllocator> reader( + stack_.HasAllocator() ? &stack_.GetAllocator() : 0); + ClearStackOnExit scope(*this); + parseResult_ = reader.template Parse<parseFlags>(is, *this); + if (parseResult_) { + RAPIDJSON_ASSERT(stack_.GetSize() == sizeof(ValueType)); // Got one and only one root object + ValueType::operator=(*stack_.template Pop<ValueType>(1));// Move value from stack to document + } + return *this; + } + + //! Parse JSON text from an input stream + /*! \tparam parseFlags Combination of \ref ParseFlag. + \tparam InputStream Type of input stream, implementing Stream concept + \param is Input stream to be parsed. + \return The document itself for fluent API. + */ + template <unsigned parseFlags, typename InputStream> + GenericDocument& ParseStream(InputStream& is) { + return ParseStream<parseFlags, Encoding, InputStream>(is); + } + + //! Parse JSON text from an input stream (with \ref kParseDefaultFlags) + /*! \tparam InputStream Type of input stream, implementing Stream concept + \param is Input stream to be parsed. + \return The document itself for fluent API. + */ + template <typename InputStream> + GenericDocument& ParseStream(InputStream& is) { + return ParseStream<kParseDefaultFlags, Encoding, InputStream>(is); + } + //!@} + + //!@name Parse in-place from mutable string + //!@{ + + //! Parse JSON text from a mutable string + /*! \tparam parseFlags Combination of \ref ParseFlag. + \param str Mutable zero-terminated string to be parsed. + \return The document itself for fluent API. + */ + template <unsigned parseFlags> + GenericDocument& ParseInsitu(Ch* str) { + GenericInsituStringStream<Encoding> s(str); + return ParseStream<parseFlags | kParseInsituFlag>(s); + } + + //! Parse JSON text from a mutable string (with \ref kParseDefaultFlags) + /*! \param str Mutable zero-terminated string to be parsed. + \return The document itself for fluent API. + */ + GenericDocument& ParseInsitu(Ch* str) { + return ParseInsitu<kParseDefaultFlags>(str); + } + //!@} + + //!@name Parse from read-only string + //!@{ + + //! Parse JSON text from a read-only string (with Encoding conversion) + /*! \tparam parseFlags Combination of \ref ParseFlag (must not contain \ref kParseInsituFlag). + \tparam SourceEncoding Transcoding from input Encoding + \param str Read-only zero-terminated string to be parsed. + */ + template <unsigned parseFlags, typename SourceEncoding> + GenericDocument& Parse(const typename SourceEncoding::Ch* str) { + RAPIDJSON_ASSERT(!(parseFlags & kParseInsituFlag)); + GenericStringStream<SourceEncoding> s(str); + return ParseStream<parseFlags, SourceEncoding>(s); + } + + //! Parse JSON text from a read-only string + /*! \tparam parseFlags Combination of \ref ParseFlag (must not contain \ref kParseInsituFlag). + \param str Read-only zero-terminated string to be parsed. + */ + template <unsigned parseFlags> + GenericDocument& Parse(const Ch* str) { + return Parse<parseFlags, Encoding>(str); + } + + //! Parse JSON text from a read-only string (with \ref kParseDefaultFlags) + /*! \param str Read-only zero-terminated string to be parsed. + */ + GenericDocument& Parse(const Ch* str) { + return Parse<kParseDefaultFlags>(str); + } + + template <unsigned parseFlags, typename SourceEncoding> + GenericDocument& Parse(const typename SourceEncoding::Ch* str, size_t length) { + RAPIDJSON_ASSERT(!(parseFlags & kParseInsituFlag)); + MemoryStream ms(reinterpret_cast<const char*>(str), length * sizeof(typename SourceEncoding::Ch)); + EncodedInputStream<SourceEncoding, MemoryStream> is(ms); + ParseStream<parseFlags, SourceEncoding>(is); + return *this; + } + + template <unsigned parseFlags> + GenericDocument& Parse(const Ch* str, size_t length) { + return Parse<parseFlags, Encoding>(str, length); + } + + GenericDocument& Parse(const Ch* str, size_t length) { + return Parse<kParseDefaultFlags>(str, length); + } + +#if RAPIDJSON_HAS_STDSTRING + template <unsigned parseFlags, typename SourceEncoding> + GenericDocument& Parse(const std::basic_string<typename SourceEncoding::Ch>& str) { + // c_str() is constant complexity according to standard. Should be faster than Parse(const char*, size_t) + return Parse<parseFlags, SourceEncoding>(str.c_str()); + } + + template <unsigned parseFlags> + GenericDocument& Parse(const std::basic_string<Ch>& str) { + return Parse<parseFlags, Encoding>(str.c_str()); + } + + GenericDocument& Parse(const std::basic_string<Ch>& str) { + return Parse<kParseDefaultFlags>(str); + } +#endif // RAPIDJSON_HAS_STDSTRING + + //!@} + + //!@name Handling parse errors + //!@{ + + //! Whether a parse error has occurred in the last parsing. + bool HasParseError() const { return parseResult_.IsError(); } + + //! Get the \ref ParseErrorCode of last parsing. + ParseErrorCode GetParseError() const { return parseResult_.Code(); } + + //! Get the position of last parsing error in input, 0 otherwise. + size_t GetErrorOffset() const { return parseResult_.Offset(); } + + //! Implicit conversion to get the last parse result +#ifndef __clang // -Wdocumentation + /*! \return \ref ParseResult of the last parse operation + + \code + Document doc; + ParseResult ok = doc.Parse(json); + if (!ok) + printf( "JSON parse error: %s (%u)\n", GetParseError_En(ok.Code()), ok.Offset()); + \endcode + */ +#endif + operator ParseResult() const { return parseResult_; } + //!@} + + //! Get the allocator of this document. + Allocator& GetAllocator() { + RAPIDJSON_ASSERT(allocator_); + return *allocator_; + } + + //! Get the capacity of stack in bytes. + size_t GetStackCapacity() const { return stack_.GetCapacity(); } + +private: + // clear stack on any exit from ParseStream, e.g. due to exception + struct ClearStackOnExit { + explicit ClearStackOnExit(GenericDocument& d) : d_(d) {} + ~ClearStackOnExit() { d_.ClearStack(); } + private: + ClearStackOnExit(const ClearStackOnExit&); + ClearStackOnExit& operator=(const ClearStackOnExit&); + GenericDocument& d_; + }; + + // callers of the following private Handler functions + // template <typename,typename,typename> friend class GenericReader; // for parsing + template <typename, typename> friend class GenericValue; // for deep copying + +public: + // Implementation of Handler + bool Null() { new (stack_.template Push<ValueType>()) ValueType(); return true; } + bool Bool(bool b) { new (stack_.template Push<ValueType>()) ValueType(b); return true; } + bool Int(int i) { new (stack_.template Push<ValueType>()) ValueType(i); return true; } + bool Uint(unsigned i) { new (stack_.template Push<ValueType>()) ValueType(i); return true; } + bool Int64(int64_t i) { new (stack_.template Push<ValueType>()) ValueType(i); return true; } + bool Uint64(uint64_t i) { new (stack_.template Push<ValueType>()) ValueType(i); return true; } + bool Double(double d) { new (stack_.template Push<ValueType>()) ValueType(d); return true; } + + bool RawNumber(const Ch* str, SizeType length, bool copy) { + if (copy) + new (stack_.template Push<ValueType>()) ValueType(str, length, GetAllocator()); + else + new (stack_.template Push<ValueType>()) ValueType(str, length); + return true; + } + + bool String(const Ch* str, SizeType length, bool copy) { + if (copy) + new (stack_.template Push<ValueType>()) ValueType(str, length, GetAllocator()); + else + new (stack_.template Push<ValueType>()) ValueType(str, length); + return true; + } + + bool StartObject() { new (stack_.template Push<ValueType>()) ValueType(kObjectType); return true; } + + bool Key(const Ch* str, SizeType length, bool copy) { return String(str, length, copy); } + + bool EndObject(SizeType memberCount) { + typename ValueType::Member* members = stack_.template Pop<typename ValueType::Member>(memberCount); + stack_.template Top<ValueType>()->SetObjectRaw(members, memberCount, GetAllocator()); + return true; + } + + bool StartArray() { new (stack_.template Push<ValueType>()) ValueType(kArrayType); return true; } + + bool EndArray(SizeType elementCount) { + ValueType* elements = stack_.template Pop<ValueType>(elementCount); + stack_.template Top<ValueType>()->SetArrayRaw(elements, elementCount, GetAllocator()); + return true; + } + +private: + //! Prohibit copying + GenericDocument(const GenericDocument&); + //! Prohibit assignment + GenericDocument& operator=(const GenericDocument&); + + void ClearStack() { + if (Allocator::kNeedFree) + while (stack_.GetSize() > 0) // Here assumes all elements in stack array are GenericValue (Member is actually 2 GenericValue objects) + (stack_.template Pop<ValueType>(1))->~ValueType(); + else + stack_.Clear(); + stack_.ShrinkToFit(); + } + + void Destroy() { + RAPIDJSON_DELETE(ownAllocator_); + } + + static const size_t kDefaultStackCapacity = 1024; + Allocator* allocator_; + Allocator* ownAllocator_; + internal::Stack<StackAllocator> stack_; + ParseResult parseResult_; +}; + +//! GenericDocument with UTF8 encoding +typedef GenericDocument<UTF8<> > Document; + + +//! Helper class for accessing Value of array type. +/*! + Instance of this helper class is obtained by \c GenericValue::GetArray(). + In addition to all APIs for array type, it provides range-based for loop if \c RAPIDJSON_HAS_CXX11_RANGE_FOR=1. +*/ +template <bool Const, typename ValueT> +class GenericArray { +public: + typedef GenericArray<true, ValueT> ConstArray; + typedef GenericArray<false, ValueT> Array; + typedef ValueT PlainType; + typedef typename internal::MaybeAddConst<Const,PlainType>::Type ValueType; + typedef ValueType* ValueIterator; // This may be const or non-const iterator + typedef const ValueT* ConstValueIterator; + typedef typename ValueType::AllocatorType AllocatorType; + typedef typename ValueType::StringRefType StringRefType; + + template <typename, typename> + friend class GenericValue; + + GenericArray(const GenericArray& rhs) : value_(rhs.value_) {} + GenericArray& operator=(const GenericArray& rhs) { value_ = rhs.value_; return *this; } + ~GenericArray() {} + + SizeType Size() const { return value_.Size(); } + SizeType Capacity() const { return value_.Capacity(); } + bool Empty() const { return value_.Empty(); } + void Clear() const { value_.Clear(); } + ValueType& operator[](SizeType index) const { return value_[index]; } + ValueIterator Begin() const { return value_.Begin(); } + ValueIterator End() const { return value_.End(); } + GenericArray Reserve(SizeType newCapacity, AllocatorType &allocator) const { value_.Reserve(newCapacity, allocator); return *this; } + GenericArray PushBack(ValueType& value, AllocatorType& allocator) const { value_.PushBack(value, allocator); return *this; } +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + GenericArray PushBack(ValueType&& value, AllocatorType& allocator) const { value_.PushBack(value, allocator); return *this; } +#endif // RAPIDJSON_HAS_CXX11_RVALUE_REFS + GenericArray PushBack(StringRefType value, AllocatorType& allocator) const { value_.PushBack(value, allocator); return *this; } + template <typename T> RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (const GenericArray&)) PushBack(T value, AllocatorType& allocator) const { value_.PushBack(value, allocator); return *this; } + GenericArray PopBack() const { value_.PopBack(); return *this; } + ValueIterator Erase(ConstValueIterator pos) const { return value_.Erase(pos); } + ValueIterator Erase(ConstValueIterator first, ConstValueIterator last) const { return value_.Erase(first, last); } + +#if RAPIDJSON_HAS_CXX11_RANGE_FOR + ValueIterator begin() const { return value_.Begin(); } + ValueIterator end() const { return value_.End(); } +#endif + +private: + GenericArray(); + GenericArray(ValueType& value) : value_(value) {} + ValueType& value_; +}; + +//! Helper class for accessing Value of object type. +/*! + Instance of this helper class is obtained by \c GenericValue::GetObject(). + In addition to all APIs for array type, it provides range-based for loop if \c RAPIDJSON_HAS_CXX11_RANGE_FOR=1. +*/ +template <bool Const, typename ValueT> +class GenericObject { +public: + typedef GenericObject<true, ValueT> ConstObject; + typedef GenericObject<false, ValueT> Object; + typedef ValueT PlainType; + typedef typename internal::MaybeAddConst<Const,PlainType>::Type ValueType; + typedef GenericMemberIterator<Const, typename ValueT::EncodingType, typename ValueT::AllocatorType> MemberIterator; // This may be const or non-const iterator + typedef GenericMemberIterator<true, typename ValueT::EncodingType, typename ValueT::AllocatorType> ConstMemberIterator; + typedef typename ValueType::AllocatorType AllocatorType; + typedef typename ValueType::StringRefType StringRefType; + typedef typename ValueType::EncodingType EncodingType; + typedef typename ValueType::Ch Ch; + + template <typename, typename> + friend class GenericValue; + + GenericObject(const GenericObject& rhs) : value_(rhs.value_) {} + GenericObject& operator=(const GenericObject& rhs) { value_ = rhs.value_; return *this; } + ~GenericObject() {} + + SizeType MemberCount() const { return value_.MemberCount(); } + SizeType MemberCapacity() const { return value_.MemberCapacity(); } + bool ObjectEmpty() const { return value_.ObjectEmpty(); } + template <typename T> ValueType& operator[](T* name) const { return value_[name]; } + template <typename SourceAllocator> ValueType& operator[](const GenericValue<EncodingType, SourceAllocator>& name) const { return value_[name]; } +#if RAPIDJSON_HAS_STDSTRING + ValueType& operator[](const std::basic_string<Ch>& name) const { return value_[name]; } +#endif + MemberIterator MemberBegin() const { return value_.MemberBegin(); } + MemberIterator MemberEnd() const { return value_.MemberEnd(); } + GenericObject MemberReserve(SizeType newCapacity, AllocatorType &allocator) const { value_.MemberReserve(newCapacity, allocator); return *this; } + bool HasMember(const Ch* name) const { return value_.HasMember(name); } +#if RAPIDJSON_HAS_STDSTRING + bool HasMember(const std::basic_string<Ch>& name) const { return value_.HasMember(name); } +#endif + template <typename SourceAllocator> bool HasMember(const GenericValue<EncodingType, SourceAllocator>& name) const { return value_.HasMember(name); } + MemberIterator FindMember(const Ch* name) const { return value_.FindMember(name); } + template <typename SourceAllocator> MemberIterator FindMember(const GenericValue<EncodingType, SourceAllocator>& name) const { return value_.FindMember(name); } +#if RAPIDJSON_HAS_STDSTRING + MemberIterator FindMember(const std::basic_string<Ch>& name) const { return value_.FindMember(name); } +#endif + GenericObject AddMember(ValueType& name, ValueType& value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } + GenericObject AddMember(ValueType& name, StringRefType value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } +#if RAPIDJSON_HAS_STDSTRING + GenericObject AddMember(ValueType& name, std::basic_string<Ch>& value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } +#endif + template <typename T> RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&)) AddMember(ValueType& name, T value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + GenericObject AddMember(ValueType&& name, ValueType&& value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } + GenericObject AddMember(ValueType&& name, ValueType& value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } + GenericObject AddMember(ValueType& name, ValueType&& value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } + GenericObject AddMember(StringRefType name, ValueType&& value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } +#endif // RAPIDJSON_HAS_CXX11_RVALUE_REFS + GenericObject AddMember(StringRefType name, ValueType& value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } + GenericObject AddMember(StringRefType name, StringRefType value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } + template <typename T> RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (GenericObject)) AddMember(StringRefType name, T value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; } + void RemoveAllMembers() { value_.RemoveAllMembers(); } + bool RemoveMember(const Ch* name) const { return value_.RemoveMember(name); } +#if RAPIDJSON_HAS_STDSTRING + bool RemoveMember(const std::basic_string<Ch>& name) const { return value_.RemoveMember(name); } +#endif + template <typename SourceAllocator> bool RemoveMember(const GenericValue<EncodingType, SourceAllocator>& name) const { return value_.RemoveMember(name); } + MemberIterator RemoveMember(MemberIterator m) const { return value_.RemoveMember(m); } + MemberIterator EraseMember(ConstMemberIterator pos) const { return value_.EraseMember(pos); } + MemberIterator EraseMember(ConstMemberIterator first, ConstMemberIterator last) const { return value_.EraseMember(first, last); } + bool EraseMember(const Ch* name) const { return value_.EraseMember(name); } +#if RAPIDJSON_HAS_STDSTRING + bool EraseMember(const std::basic_string<Ch>& name) const { return EraseMember(ValueType(StringRef(name))); } +#endif + template <typename SourceAllocator> bool EraseMember(const GenericValue<EncodingType, SourceAllocator>& name) const { return value_.EraseMember(name); } + +#if RAPIDJSON_HAS_CXX11_RANGE_FOR + MemberIterator begin() const { return value_.MemberBegin(); } + MemberIterator end() const { return value_.MemberEnd(); } +#endif + +private: + GenericObject(); + GenericObject(ValueType& value) : value_(value) {} + ValueType& value_; +}; + +RAPIDJSON_NAMESPACE_END +RAPIDJSON_DIAG_POP + +#endif // RAPIDJSON_DOCUMENT_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_encodedstream.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_encodedstream.h new file mode 100644 index 00000000..98dc96dc --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_encodedstream.h @@ -0,0 +1,299 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_ENCODEDSTREAM_H_ +#define RAPIDJSON_ENCODEDSTREAM_H_ + +#include "lottie_rapidjson_stream.h" +#include "lottie_rapidjson_memorystream.h" + +#ifdef __GNUC__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +#endif + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(padded) +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +//! Input byte stream wrapper with a statically bound encoding. +/*! + \tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE. + \tparam InputByteStream Type of input byte stream. For example, FileReadStream. +*/ +template <typename Encoding, typename InputByteStream> +class EncodedInputStream { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); +public: + typedef typename Encoding::Ch Ch; + + EncodedInputStream(InputByteStream& is) : is_(is) { + current_ = Encoding::TakeBOM(is_); + } + + Ch Peek() const { return current_; } + Ch Take() { Ch c = current_; current_ = Encoding::Take(is_); return c; } + size_t Tell() const { return is_.Tell(); } + + // Not implemented + void Put(Ch) { RAPIDJSON_ASSERT(false); } + void Flush() { RAPIDJSON_ASSERT(false); } + Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } + +private: + EncodedInputStream(const EncodedInputStream&); + EncodedInputStream& operator=(const EncodedInputStream&); + + InputByteStream& is_; + Ch current_; +}; + +//! Specialized for UTF8 MemoryStream. +template <> +class EncodedInputStream<UTF8<>, MemoryStream> { +public: + typedef UTF8<>::Ch Ch; + + EncodedInputStream(MemoryStream& is) : is_(is) { + if (static_cast<unsigned char>(is_.Peek()) == 0xEFu) is_.Take(); + if (static_cast<unsigned char>(is_.Peek()) == 0xBBu) is_.Take(); + if (static_cast<unsigned char>(is_.Peek()) == 0xBFu) is_.Take(); + } + Ch Peek() const { return is_.Peek(); } + Ch Take() { return is_.Take(); } + size_t Tell() const { return is_.Tell(); } + + // Not implemented + void Put(Ch) {} + void Flush() {} + Ch* PutBegin() { return 0; } + size_t PutEnd(Ch*) { return 0; } + + MemoryStream& is_; + +private: + EncodedInputStream(const EncodedInputStream&); + EncodedInputStream& operator=(const EncodedInputStream&); +}; + +//! Output byte stream wrapper with statically bound encoding. +/*! + \tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE. + \tparam OutputByteStream Type of input byte stream. For example, FileWriteStream. +*/ +template <typename Encoding, typename OutputByteStream> +class EncodedOutputStream { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); +public: + typedef typename Encoding::Ch Ch; + + EncodedOutputStream(OutputByteStream& os, bool putBOM = true) : os_(os) { + if (putBOM) + Encoding::PutBOM(os_); + } + + void Put(Ch c) { Encoding::Put(os_, c); } + void Flush() { os_.Flush(); } + + // Not implemented + Ch Peek() const { RAPIDJSON_ASSERT(false); return 0;} + Ch Take() { RAPIDJSON_ASSERT(false); return 0;} + size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; } + Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } + +private: + EncodedOutputStream(const EncodedOutputStream&); + EncodedOutputStream& operator=(const EncodedOutputStream&); + + OutputByteStream& os_; +}; + +#define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x + +//! Input stream wrapper with dynamically bound encoding and automatic encoding detection. +/*! + \tparam CharType Type of character for reading. + \tparam InputByteStream type of input byte stream to be wrapped. +*/ +template <typename CharType, typename InputByteStream> +class AutoUTFInputStream { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); +public: + typedef CharType Ch; + + //! Constructor. + /*! + \param is input stream to be wrapped. + \param type UTF encoding type if it is not detected from the stream. + */ + AutoUTFInputStream(InputByteStream& is, UTFType type = kUTF8) : is_(&is), type_(type), hasBOM_(false) { + RAPIDJSON_ASSERT(type >= kUTF8 && type <= kUTF32BE); + DetectType(); + static const TakeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Take) }; + takeFunc_ = f[type_]; + current_ = takeFunc_(*is_); + } + + UTFType GetType() const { return type_; } + bool HasBOM() const { return hasBOM_; } + + Ch Peek() const { return current_; } + Ch Take() { Ch c = current_; current_ = takeFunc_(*is_); return c; } + size_t Tell() const { return is_->Tell(); } + + // Not implemented + void Put(Ch) { RAPIDJSON_ASSERT(false); } + void Flush() { RAPIDJSON_ASSERT(false); } + Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } + +private: + AutoUTFInputStream(const AutoUTFInputStream&); + AutoUTFInputStream& operator=(const AutoUTFInputStream&); + + // Detect encoding type with BOM or RFC 4627 + void DetectType() { + // BOM (Byte Order Mark): + // 00 00 FE FF UTF-32BE + // FF FE 00 00 UTF-32LE + // FE FF UTF-16BE + // FF FE UTF-16LE + // EF BB BF UTF-8 + + const unsigned char* c = reinterpret_cast<const unsigned char *>(is_->Peek4()); + if (!c) + return; + + unsigned bom = static_cast<unsigned>(c[0] | (c[1] << 8) | (c[2] << 16) | (c[3] << 24)); + hasBOM_ = false; + if (bom == 0xFFFE0000) { type_ = kUTF32BE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); } + else if (bom == 0x0000FEFF) { type_ = kUTF32LE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); } + else if ((bom & 0xFFFF) == 0xFFFE) { type_ = kUTF16BE; hasBOM_ = true; is_->Take(); is_->Take(); } + else if ((bom & 0xFFFF) == 0xFEFF) { type_ = kUTF16LE; hasBOM_ = true; is_->Take(); is_->Take(); } + else if ((bom & 0xFFFFFF) == 0xBFBBEF) { type_ = kUTF8; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); } + + // RFC 4627: Section 3 + // "Since the first two characters of a JSON text will always be ASCII + // characters [RFC0020], it is possible to determine whether an octet + // stream is UTF-8, UTF-16 (BE or LE), or UTF-32 (BE or LE) by looking + // at the pattern of nulls in the first four octets." + // 00 00 00 xx UTF-32BE + // 00 xx 00 xx UTF-16BE + // xx 00 00 00 UTF-32LE + // xx 00 xx 00 UTF-16LE + // xx xx xx xx UTF-8 + + if (!hasBOM_) { + int pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0); + switch (pattern) { + case 0x08: type_ = kUTF32BE; break; + case 0x0A: type_ = kUTF16BE; break; + case 0x01: type_ = kUTF32LE; break; + case 0x05: type_ = kUTF16LE; break; + case 0x0F: type_ = kUTF8; break; + default: break; // Use type defined by user. + } + } + + // Runtime check whether the size of character type is sufficient. It only perform checks with assertion. + if (type_ == kUTF16LE || type_ == kUTF16BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 2); + if (type_ == kUTF32LE || type_ == kUTF32BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 4); + } + + typedef Ch (*TakeFunc)(InputByteStream& is); + InputByteStream* is_; + UTFType type_; + Ch current_; + TakeFunc takeFunc_; + bool hasBOM_; +}; + +//! Output stream wrapper with dynamically bound encoding and automatic encoding detection. +/*! + \tparam CharType Type of character for writing. + \tparam OutputByteStream type of output byte stream to be wrapped. +*/ +template <typename CharType, typename OutputByteStream> +class AutoUTFOutputStream { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); +public: + typedef CharType Ch; + + //! Constructor. + /*! + \param os output stream to be wrapped. + \param type UTF encoding type. + \param putBOM Whether to write BOM at the beginning of the stream. + */ + AutoUTFOutputStream(OutputByteStream& os, UTFType type, bool putBOM) : os_(&os), type_(type) { + RAPIDJSON_ASSERT(type >= kUTF8 && type <= kUTF32BE); + + // Runtime check whether the size of character type is sufficient. It only perform checks with assertion. + if (type_ == kUTF16LE || type_ == kUTF16BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 2); + if (type_ == kUTF32LE || type_ == kUTF32BE) RAPIDJSON_ASSERT(sizeof(Ch) >= 4); + + static const PutFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Put) }; + putFunc_ = f[type_]; + + if (putBOM) + PutBOM(); + } + + UTFType GetType() const { return type_; } + + void Put(Ch c) { putFunc_(*os_, c); } + void Flush() { os_->Flush(); } + + // Not implemented + Ch Peek() const { RAPIDJSON_ASSERT(false); return 0;} + Ch Take() { RAPIDJSON_ASSERT(false); return 0;} + size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; } + Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } + +private: + AutoUTFOutputStream(const AutoUTFOutputStream&); + AutoUTFOutputStream& operator=(const AutoUTFOutputStream&); + + void PutBOM() { + typedef void (*PutBOMFunc)(OutputByteStream&); + static const PutBOMFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(PutBOM) }; + f[type_](*os_); + } + + typedef void (*PutFunc)(OutputByteStream&, Ch); + + OutputByteStream* os_; + UTFType type_; + PutFunc putFunc_; +}; + +#undef RAPIDJSON_ENCODINGS_FUNC + +RAPIDJSON_NAMESPACE_END + +#ifdef __clang__ +RAPIDJSON_DIAG_POP +#endif + +#ifdef __GNUC__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_FILESTREAM_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_encodings.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_encodings.h new file mode 100644 index 00000000..52089823 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_encodings.h @@ -0,0 +1,716 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_ENCODINGS_H_ +#define RAPIDJSON_ENCODINGS_H_ + +#include "lottie_rapidjson_rapidjson.h" + +#if defined(_MSC_VER) && !defined(__clang__) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(4244) // conversion from 'type1' to 'type2', possible loss of data +RAPIDJSON_DIAG_OFF(4702) // unreachable code +#elif defined(__GNUC__) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +RAPIDJSON_DIAG_OFF(overflow) +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +/////////////////////////////////////////////////////////////////////////////// +// Encoding + +/*! \class rapidjson::Encoding + \brief Concept for encoding of Unicode characters. + +\code +concept Encoding { + typename Ch; //! Type of character. A "character" is actually a code unit in unicode's definition. + + enum { supportUnicode = 1 }; // or 0 if not supporting unicode + + //! \brief Encode a Unicode codepoint to an output stream. + //! \param os Output stream. + //! \param codepoint An unicode codepoint, ranging from 0x0 to 0x10FFFF inclusively. + template<typename OutputStream> + static void Encode(OutputStream& os, unsigned codepoint); + + //! \brief Decode a Unicode codepoint from an input stream. + //! \param is Input stream. + //! \param codepoint Output of the unicode codepoint. + //! \return true if a valid codepoint can be decoded from the stream. + template <typename InputStream> + static bool Decode(InputStream& is, unsigned* codepoint); + + //! \brief Validate one Unicode codepoint from an encoded stream. + //! \param is Input stream to obtain codepoint. + //! \param os Output for copying one codepoint. + //! \return true if it is valid. + //! \note This function just validating and copying the codepoint without actually decode it. + template <typename InputStream, typename OutputStream> + static bool Validate(InputStream& is, OutputStream& os); + + // The following functions are deal with byte streams. + + //! Take a character from input byte stream, skip BOM if exist. + template <typename InputByteStream> + static CharType TakeBOM(InputByteStream& is); + + //! Take a character from input byte stream. + template <typename InputByteStream> + static Ch Take(InputByteStream& is); + + //! Put BOM to output byte stream. + template <typename OutputByteStream> + static void PutBOM(OutputByteStream& os); + + //! Put a character to output byte stream. + template <typename OutputByteStream> + static void Put(OutputByteStream& os, Ch c); +}; +\endcode +*/ + +/////////////////////////////////////////////////////////////////////////////// +// UTF8 + +//! UTF-8 encoding. +/*! http://en.wikipedia.org/wiki/UTF-8 + http://tools.ietf.org/html/rfc3629 + \tparam CharType Code unit for storing 8-bit UTF-8 data. Default is char. + \note implements Encoding concept +*/ +template<typename CharType = char> +struct UTF8 { + typedef CharType Ch; + + enum { supportUnicode = 1 }; + + template<typename OutputStream> + static void Encode(OutputStream& os, unsigned codepoint) { + if (codepoint <= 0x7F) + os.Put(static_cast<Ch>(codepoint & 0xFF)); + else if (codepoint <= 0x7FF) { + os.Put(static_cast<Ch>(0xC0 | ((codepoint >> 6) & 0xFF))); + os.Put(static_cast<Ch>(0x80 | ((codepoint & 0x3F)))); + } + else if (codepoint <= 0xFFFF) { + os.Put(static_cast<Ch>(0xE0 | ((codepoint >> 12) & 0xFF))); + os.Put(static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F))); + os.Put(static_cast<Ch>(0x80 | (codepoint & 0x3F))); + } + else { + RAPIDJSON_ASSERT(codepoint <= 0x10FFFF); + os.Put(static_cast<Ch>(0xF0 | ((codepoint >> 18) & 0xFF))); + os.Put(static_cast<Ch>(0x80 | ((codepoint >> 12) & 0x3F))); + os.Put(static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F))); + os.Put(static_cast<Ch>(0x80 | (codepoint & 0x3F))); + } + } + + template<typename OutputStream> + static void EncodeUnsafe(OutputStream& os, unsigned codepoint) { + if (codepoint <= 0x7F) + PutUnsafe(os, static_cast<Ch>(codepoint & 0xFF)); + else if (codepoint <= 0x7FF) { + PutUnsafe(os, static_cast<Ch>(0xC0 | ((codepoint >> 6) & 0xFF))); + PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint & 0x3F)))); + } + else if (codepoint <= 0xFFFF) { + PutUnsafe(os, static_cast<Ch>(0xE0 | ((codepoint >> 12) & 0xFF))); + PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F))); + PutUnsafe(os, static_cast<Ch>(0x80 | (codepoint & 0x3F))); + } + else { + RAPIDJSON_ASSERT(codepoint <= 0x10FFFF); + PutUnsafe(os, static_cast<Ch>(0xF0 | ((codepoint >> 18) & 0xFF))); + PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint >> 12) & 0x3F))); + PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F))); + PutUnsafe(os, static_cast<Ch>(0x80 | (codepoint & 0x3F))); + } + } + + template <typename InputStream> + static bool Decode(InputStream& is, unsigned* codepoint) { +#define RAPIDJSON_COPY() c = is.Take(); *codepoint = (*codepoint << 6) | (static_cast<unsigned char>(c) & 0x3Fu) +#define RAPIDJSON_TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0) +#define RAPIDJSON_TAIL() RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x70) + typename InputStream::Ch c = is.Take(); + if (!(c & 0x80)) { + *codepoint = static_cast<unsigned char>(c); + return true; + } + + unsigned char type = GetRange(static_cast<unsigned char>(c)); + if (type >= 32) { + *codepoint = 0; + } else { + *codepoint = (0xFFu >> type) & static_cast<unsigned char>(c); + } + bool result = true; + switch (type) { + case 2: RAPIDJSON_TAIL(); return result; + case 3: RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result; + case 4: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x50); RAPIDJSON_TAIL(); return result; + case 5: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x10); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result; + case 6: RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result; + case 10: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x20); RAPIDJSON_TAIL(); return result; + case 11: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x60); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result; + default: return false; + } +#undef RAPIDJSON_COPY +#undef RAPIDJSON_TRANS +#undef RAPIDJSON_TAIL + } + + template <typename InputStream, typename OutputStream> + static bool Validate(InputStream& is, OutputStream& os) { +#define RAPIDJSON_COPY() os.Put(c = is.Take()) +#define RAPIDJSON_TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0) +#define RAPIDJSON_TAIL() RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x70) + Ch c; + RAPIDJSON_COPY(); + if (!(c & 0x80)) + return true; + + bool result = true; + switch (GetRange(static_cast<unsigned char>(c))) { + case 2: RAPIDJSON_TAIL(); return result; + case 3: RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result; + case 4: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x50); RAPIDJSON_TAIL(); return result; + case 5: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x10); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result; + case 6: RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result; + case 10: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x20); RAPIDJSON_TAIL(); return result; + case 11: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x60); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result; + default: return false; + } +#undef RAPIDJSON_COPY +#undef RAPIDJSON_TRANS +#undef RAPIDJSON_TAIL + } + + static unsigned char GetRange(unsigned char c) { + // Referring to DFA of http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ + // With new mapping 1 -> 0x10, 7 -> 0x20, 9 -> 0x40, such that AND operation can test multiple types. + static const unsigned char type[] = { + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10, + 0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40, + 0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20, + 0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20, + 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, + 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8, + }; + return type[c]; + } + + template <typename InputByteStream> + static CharType TakeBOM(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + typename InputByteStream::Ch c = Take(is); + if (static_cast<unsigned char>(c) != 0xEFu) return c; + c = is.Take(); + if (static_cast<unsigned char>(c) != 0xBBu) return c; + c = is.Take(); + if (static_cast<unsigned char>(c) != 0xBFu) return c; + c = is.Take(); + return c; + } + + template <typename InputByteStream> + static Ch Take(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + return static_cast<Ch>(is.Take()); + } + + template <typename OutputByteStream> + static void PutBOM(OutputByteStream& os) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>(0xEFu)); + os.Put(static_cast<typename OutputByteStream::Ch>(0xBBu)); + os.Put(static_cast<typename OutputByteStream::Ch>(0xBFu)); + } + + template <typename OutputByteStream> + static void Put(OutputByteStream& os, Ch c) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>(c)); + } +}; + +/////////////////////////////////////////////////////////////////////////////// +// UTF16 + +//! UTF-16 encoding. +/*! http://en.wikipedia.org/wiki/UTF-16 + http://tools.ietf.org/html/rfc2781 + \tparam CharType Type for storing 16-bit UTF-16 data. Default is wchar_t. C++11 may use char16_t instead. + \note implements Encoding concept + + \note For in-memory access, no need to concern endianness. The code units and code points are represented by CPU's endianness. + For streaming, use UTF16LE and UTF16BE, which handle endianness. +*/ +template<typename CharType = wchar_t> +struct UTF16 { + typedef CharType Ch; + RAPIDJSON_STATIC_ASSERT(sizeof(Ch) >= 2); + + enum { supportUnicode = 1 }; + + template<typename OutputStream> + static void Encode(OutputStream& os, unsigned codepoint) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 2); + if (codepoint <= 0xFFFF) { + RAPIDJSON_ASSERT(codepoint < 0xD800 || codepoint > 0xDFFF); // Code point itself cannot be surrogate pair + os.Put(static_cast<typename OutputStream::Ch>(codepoint)); + } + else { + RAPIDJSON_ASSERT(codepoint <= 0x10FFFF); + unsigned v = codepoint - 0x10000; + os.Put(static_cast<typename OutputStream::Ch>((v >> 10) | 0xD800)); + os.Put(static_cast<typename OutputStream::Ch>((v & 0x3FF) | 0xDC00)); + } + } + + + template<typename OutputStream> + static void EncodeUnsafe(OutputStream& os, unsigned codepoint) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 2); + if (codepoint <= 0xFFFF) { + RAPIDJSON_ASSERT(codepoint < 0xD800 || codepoint > 0xDFFF); // Code point itself cannot be surrogate pair + PutUnsafe(os, static_cast<typename OutputStream::Ch>(codepoint)); + } + else { + RAPIDJSON_ASSERT(codepoint <= 0x10FFFF); + unsigned v = codepoint - 0x10000; + PutUnsafe(os, static_cast<typename OutputStream::Ch>((v >> 10) | 0xD800)); + PutUnsafe(os, static_cast<typename OutputStream::Ch>((v & 0x3FF) | 0xDC00)); + } + } + + template <typename InputStream> + static bool Decode(InputStream& is, unsigned* codepoint) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 2); + typename InputStream::Ch c = is.Take(); + if (c < 0xD800 || c > 0xDFFF) { + *codepoint = static_cast<unsigned>(c); + return true; + } + else if (c <= 0xDBFF) { + *codepoint = (static_cast<unsigned>(c) & 0x3FF) << 10; + c = is.Take(); + *codepoint |= (static_cast<unsigned>(c) & 0x3FF); + *codepoint += 0x10000; + return c >= 0xDC00 && c <= 0xDFFF; + } + return false; + } + + template <typename InputStream, typename OutputStream> + static bool Validate(InputStream& is, OutputStream& os) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 2); + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 2); + typename InputStream::Ch c; + os.Put(static_cast<typename OutputStream::Ch>(c = is.Take())); + if (c < 0xD800 || c > 0xDFFF) + return true; + else if (c <= 0xDBFF) { + os.Put(c = is.Take()); + return c >= 0xDC00 && c <= 0xDFFF; + } + return false; + } +}; + +//! UTF-16 little endian encoding. +template<typename CharType = wchar_t> +struct UTF16LE : UTF16<CharType> { + template <typename InputByteStream> + static CharType TakeBOM(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + CharType c = Take(is); + return static_cast<uint16_t>(c) == 0xFEFFu ? Take(is) : c; + } + + template <typename InputByteStream> + static CharType Take(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + unsigned c = static_cast<uint8_t>(is.Take()); + c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8; + return static_cast<CharType>(c); + } + + template <typename OutputByteStream> + static void PutBOM(OutputByteStream& os) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu)); + } + + template <typename OutputByteStream> + static void Put(OutputByteStream& os, CharType c) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>(static_cast<unsigned>(c) & 0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>((static_cast<unsigned>(c) >> 8) & 0xFFu)); + } +}; + +//! UTF-16 big endian encoding. +template<typename CharType = wchar_t> +struct UTF16BE : UTF16<CharType> { + template <typename InputByteStream> + static CharType TakeBOM(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + CharType c = Take(is); + return static_cast<uint16_t>(c) == 0xFEFFu ? Take(is) : c; + } + + template <typename InputByteStream> + static CharType Take(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + unsigned c = static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8; + c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())); + return static_cast<CharType>(c); + } + + template <typename OutputByteStream> + static void PutBOM(OutputByteStream& os) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu)); + os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu)); + } + + template <typename OutputByteStream> + static void Put(OutputByteStream& os, CharType c) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>((static_cast<unsigned>(c) >> 8) & 0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>(static_cast<unsigned>(c) & 0xFFu)); + } +}; + +/////////////////////////////////////////////////////////////////////////////// +// UTF32 + +//! UTF-32 encoding. +/*! http://en.wikipedia.org/wiki/UTF-32 + \tparam CharType Type for storing 32-bit UTF-32 data. Default is unsigned. C++11 may use char32_t instead. + \note implements Encoding concept + + \note For in-memory access, no need to concern endianness. The code units and code points are represented by CPU's endianness. + For streaming, use UTF32LE and UTF32BE, which handle endianness. +*/ +template<typename CharType = unsigned> +struct UTF32 { + typedef CharType Ch; + RAPIDJSON_STATIC_ASSERT(sizeof(Ch) >= 4); + + enum { supportUnicode = 1 }; + + template<typename OutputStream> + static void Encode(OutputStream& os, unsigned codepoint) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 4); + RAPIDJSON_ASSERT(codepoint <= 0x10FFFF); + os.Put(codepoint); + } + + template<typename OutputStream> + static void EncodeUnsafe(OutputStream& os, unsigned codepoint) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 4); + RAPIDJSON_ASSERT(codepoint <= 0x10FFFF); + PutUnsafe(os, codepoint); + } + + template <typename InputStream> + static bool Decode(InputStream& is, unsigned* codepoint) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 4); + Ch c = is.Take(); + *codepoint = c; + return c <= 0x10FFFF; + } + + template <typename InputStream, typename OutputStream> + static bool Validate(InputStream& is, OutputStream& os) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 4); + Ch c; + os.Put(c = is.Take()); + return c <= 0x10FFFF; + } +}; + +//! UTF-32 little endian enocoding. +template<typename CharType = unsigned> +struct UTF32LE : UTF32<CharType> { + template <typename InputByteStream> + static CharType TakeBOM(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + CharType c = Take(is); + return static_cast<uint32_t>(c) == 0x0000FEFFu ? Take(is) : c; + } + + template <typename InputByteStream> + static CharType Take(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + unsigned c = static_cast<uint8_t>(is.Take()); + c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8; + c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 16; + c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 24; + return static_cast<CharType>(c); + } + + template <typename OutputByteStream> + static void PutBOM(OutputByteStream& os) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu)); + os.Put(static_cast<typename OutputByteStream::Ch>(0x00u)); + os.Put(static_cast<typename OutputByteStream::Ch>(0x00u)); + } + + template <typename OutputByteStream> + static void Put(OutputByteStream& os, CharType c) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>(c & 0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>((c >> 8) & 0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>((c >> 16) & 0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>((c >> 24) & 0xFFu)); + } +}; + +//! UTF-32 big endian encoding. +template<typename CharType = unsigned> +struct UTF32BE : UTF32<CharType> { + template <typename InputByteStream> + static CharType TakeBOM(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + CharType c = Take(is); + return static_cast<uint32_t>(c) == 0x0000FEFFu ? Take(is) : c; + } + + template <typename InputByteStream> + static CharType Take(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + unsigned c = static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 24; + c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 16; + c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8; + c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())); + return static_cast<CharType>(c); + } + + template <typename OutputByteStream> + static void PutBOM(OutputByteStream& os) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>(0x00u)); + os.Put(static_cast<typename OutputByteStream::Ch>(0x00u)); + os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu)); + os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu)); + } + + template <typename OutputByteStream> + static void Put(OutputByteStream& os, CharType c) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>((c >> 24) & 0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>((c >> 16) & 0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>((c >> 8) & 0xFFu)); + os.Put(static_cast<typename OutputByteStream::Ch>(c & 0xFFu)); + } +}; + +/////////////////////////////////////////////////////////////////////////////// +// ASCII + +//! ASCII encoding. +/*! http://en.wikipedia.org/wiki/ASCII + \tparam CharType Code unit for storing 7-bit ASCII data. Default is char. + \note implements Encoding concept +*/ +template<typename CharType = char> +struct ASCII { + typedef CharType Ch; + + enum { supportUnicode = 0 }; + + template<typename OutputStream> + static void Encode(OutputStream& os, unsigned codepoint) { + RAPIDJSON_ASSERT(codepoint <= 0x7F); + os.Put(static_cast<Ch>(codepoint & 0xFF)); + } + + template<typename OutputStream> + static void EncodeUnsafe(OutputStream& os, unsigned codepoint) { + RAPIDJSON_ASSERT(codepoint <= 0x7F); + PutUnsafe(os, static_cast<Ch>(codepoint & 0xFF)); + } + + template <typename InputStream> + static bool Decode(InputStream& is, unsigned* codepoint) { + uint8_t c = static_cast<uint8_t>(is.Take()); + *codepoint = c; + return c <= 0X7F; + } + + template <typename InputStream, typename OutputStream> + static bool Validate(InputStream& is, OutputStream& os) { + uint8_t c = static_cast<uint8_t>(is.Take()); + os.Put(static_cast<typename OutputStream::Ch>(c)); + return c <= 0x7F; + } + + template <typename InputByteStream> + static CharType TakeBOM(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + uint8_t c = static_cast<uint8_t>(Take(is)); + return static_cast<Ch>(c); + } + + template <typename InputByteStream> + static Ch Take(InputByteStream& is) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); + return static_cast<Ch>(is.Take()); + } + + template <typename OutputByteStream> + static void PutBOM(OutputByteStream& os) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + (void)os; + } + + template <typename OutputByteStream> + static void Put(OutputByteStream& os, Ch c) { + RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); + os.Put(static_cast<typename OutputByteStream::Ch>(c)); + } +}; + +/////////////////////////////////////////////////////////////////////////////// +// AutoUTF + +//! Runtime-specified UTF encoding type of a stream. +enum UTFType { + kUTF8 = 0, //!< UTF-8. + kUTF16LE = 1, //!< UTF-16 little endian. + kUTF16BE = 2, //!< UTF-16 big endian. + kUTF32LE = 3, //!< UTF-32 little endian. + kUTF32BE = 4 //!< UTF-32 big endian. +}; + +//! Dynamically select encoding according to stream's runtime-specified UTF encoding type. +/*! \note This class can be used with AutoUTFInputtStream and AutoUTFOutputStream, which provides GetType(). +*/ +template<typename CharType> +struct AutoUTF { + typedef CharType Ch; + + enum { supportUnicode = 1 }; + +#define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x + + template<typename OutputStream> + static RAPIDJSON_FORCEINLINE void Encode(OutputStream& os, unsigned codepoint) { + typedef void (*EncodeFunc)(OutputStream&, unsigned); + static const EncodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Encode) }; + (*f[os.GetType()])(os, codepoint); + } + + template<typename OutputStream> + static RAPIDJSON_FORCEINLINE void EncodeUnsafe(OutputStream& os, unsigned codepoint) { + typedef void (*EncodeFunc)(OutputStream&, unsigned); + static const EncodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(EncodeUnsafe) }; + (*f[os.GetType()])(os, codepoint); + } + + template <typename InputStream> + static RAPIDJSON_FORCEINLINE bool Decode(InputStream& is, unsigned* codepoint) { + typedef bool (*DecodeFunc)(InputStream&, unsigned*); + static const DecodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Decode) }; + return (*f[is.GetType()])(is, codepoint); + } + + template <typename InputStream, typename OutputStream> + static RAPIDJSON_FORCEINLINE bool Validate(InputStream& is, OutputStream& os) { + typedef bool (*ValidateFunc)(InputStream&, OutputStream&); + static const ValidateFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Validate) }; + return (*f[is.GetType()])(is, os); + } + +#undef RAPIDJSON_ENCODINGS_FUNC +}; + +/////////////////////////////////////////////////////////////////////////////// +// Transcoder + +//! Encoding conversion. +template<typename SourceEncoding, typename TargetEncoding> +struct Transcoder { + //! Take one Unicode codepoint from source encoding, convert it to target encoding and put it to the output stream. + template<typename InputStream, typename OutputStream> + static RAPIDJSON_FORCEINLINE bool Transcode(InputStream& is, OutputStream& os) { + unsigned codepoint; + if (!SourceEncoding::Decode(is, &codepoint)) + return false; + TargetEncoding::Encode(os, codepoint); + return true; + } + + template<typename InputStream, typename OutputStream> + static RAPIDJSON_FORCEINLINE bool TranscodeUnsafe(InputStream& is, OutputStream& os) { + unsigned codepoint; + if (!SourceEncoding::Decode(is, &codepoint)) + return false; + TargetEncoding::EncodeUnsafe(os, codepoint); + return true; + } + + //! Validate one Unicode codepoint from an encoded stream. + template<typename InputStream, typename OutputStream> + static RAPIDJSON_FORCEINLINE bool Validate(InputStream& is, OutputStream& os) { + return Transcode(is, os); // Since source/target encoding is different, must transcode. + } +}; + +// Forward declaration. +template<typename Stream> +inline void PutUnsafe(Stream& stream, typename Stream::Ch c); + +//! Specialization of Transcoder with same source and target encoding. +template<typename Encoding> +struct Transcoder<Encoding, Encoding> { + template<typename InputStream, typename OutputStream> + static RAPIDJSON_FORCEINLINE bool Transcode(InputStream& is, OutputStream& os) { + os.Put(is.Take()); // Just copy one code unit. This semantic is different from primary template class. + return true; + } + + template<typename InputStream, typename OutputStream> + static RAPIDJSON_FORCEINLINE bool TranscodeUnsafe(InputStream& is, OutputStream& os) { + PutUnsafe(os, is.Take()); // Just copy one code unit. This semantic is different from primary template class. + return true; + } + + template<typename InputStream, typename OutputStream> + static RAPIDJSON_FORCEINLINE bool Validate(InputStream& is, OutputStream& os) { + return Encoding::Validate(is, os); // source/target encoding are the same + } +}; + +RAPIDJSON_NAMESPACE_END + +#if defined(__GNUC__) || (defined(_MSC_VER) && !defined(__clang__)) +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_ENCODINGS_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_error_en.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_error_en.h new file mode 100644 index 00000000..e81ed92d --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_error_en.h @@ -0,0 +1,74 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_ERROR_EN_H_ +#define RAPIDJSON_ERROR_EN_H_ + +#include "lottie_rapidjson_error_error.h" + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(switch-enum) +RAPIDJSON_DIAG_OFF(covered-switch-default) +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +//! Maps error code of parsing into error message. +/*! + \ingroup RAPIDJSON_ERRORS + \param parseErrorCode Error code obtained in parsing. + \return the error message. + \note User can make a copy of this function for localization. + Using switch-case is safer for future modification of error codes. +*/ +inline const RAPIDJSON_ERROR_CHARTYPE* GetParseError_En(ParseErrorCode parseErrorCode) { + switch (parseErrorCode) { + case kParseErrorNone: return RAPIDJSON_ERROR_STRING("No error."); + + case kParseErrorDocumentEmpty: return RAPIDJSON_ERROR_STRING("The document is empty."); + case kParseErrorDocumentRootNotSingular: return RAPIDJSON_ERROR_STRING("The document root must not be followed by other values."); + + case kParseErrorValueInvalid: return RAPIDJSON_ERROR_STRING("Invalid value."); + + case kParseErrorObjectMissName: return RAPIDJSON_ERROR_STRING("Missing a name for object member."); + case kParseErrorObjectMissColon: return RAPIDJSON_ERROR_STRING("Missing a colon after a name of object member."); + case kParseErrorObjectMissCommaOrCurlyBracket: return RAPIDJSON_ERROR_STRING("Missing a comma or '}' after an object member."); + + case kParseErrorArrayMissCommaOrSquareBracket: return RAPIDJSON_ERROR_STRING("Missing a comma or ']' after an array element."); + + case kParseErrorStringUnicodeEscapeInvalidHex: return RAPIDJSON_ERROR_STRING("Incorrect hex digit after \\u escape in string."); + case kParseErrorStringUnicodeSurrogateInvalid: return RAPIDJSON_ERROR_STRING("The surrogate pair in string is invalid."); + case kParseErrorStringEscapeInvalid: return RAPIDJSON_ERROR_STRING("Invalid escape character in string."); + case kParseErrorStringMissQuotationMark: return RAPIDJSON_ERROR_STRING("Missing a closing quotation mark in string."); + case kParseErrorStringInvalidEncoding: return RAPIDJSON_ERROR_STRING("Invalid encoding in string."); + + case kParseErrorNumberTooBig: return RAPIDJSON_ERROR_STRING("Number too big to be stored in double."); + case kParseErrorNumberMissFraction: return RAPIDJSON_ERROR_STRING("Miss fraction part in number."); + case kParseErrorNumberMissExponent: return RAPIDJSON_ERROR_STRING("Miss exponent in number."); + + case kParseErrorTermination: return RAPIDJSON_ERROR_STRING("Terminate parsing due to Handler error."); + case kParseErrorUnspecificSyntaxError: return RAPIDJSON_ERROR_STRING("Unspecific syntax error."); + + default: return RAPIDJSON_ERROR_STRING("Unknown error."); + } +} + +RAPIDJSON_NAMESPACE_END + +#ifdef __clang__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_ERROR_EN_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_error_error.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_error_error.h new file mode 100644 index 00000000..034675e5 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_error_error.h @@ -0,0 +1,161 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_ERROR_ERROR_H_ +#define RAPIDJSON_ERROR_ERROR_H_ + +#include "lottie_rapidjson_rapidjson.h" + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(padded) +#endif + +/*! \file error.h */ + +/*! \defgroup RAPIDJSON_ERRORS RapidJSON error handling */ + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_ERROR_CHARTYPE + +//! Character type of error messages. +/*! \ingroup RAPIDJSON_ERRORS + The default character type is \c char. + On Windows, user can define this macro as \c TCHAR for supporting both + unicode/non-unicode settings. +*/ +#ifndef RAPIDJSON_ERROR_CHARTYPE +#define RAPIDJSON_ERROR_CHARTYPE char +#endif + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_ERROR_STRING + +//! Macro for converting string literial to \ref RAPIDJSON_ERROR_CHARTYPE[]. +/*! \ingroup RAPIDJSON_ERRORS + By default this conversion macro does nothing. + On Windows, user can define this macro as \c _T(x) for supporting both + unicode/non-unicode settings. +*/ +#ifndef RAPIDJSON_ERROR_STRING +#define RAPIDJSON_ERROR_STRING(x) x +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +/////////////////////////////////////////////////////////////////////////////// +// ParseErrorCode + +//! Error code of parsing. +/*! \ingroup RAPIDJSON_ERRORS + \see GenericReader::Parse, GenericReader::GetParseErrorCode +*/ +enum ParseErrorCode { + kParseErrorNone = 0, //!< No error. + + kParseErrorDocumentEmpty, //!< The document is empty. + kParseErrorDocumentRootNotSingular, //!< The document root must not follow by other values. + + kParseErrorValueInvalid, //!< Invalid value. + + kParseErrorObjectMissName, //!< Missing a name for object member. + kParseErrorObjectMissColon, //!< Missing a colon after a name of object member. + kParseErrorObjectMissCommaOrCurlyBracket, //!< Missing a comma or '}' after an object member. + + kParseErrorArrayMissCommaOrSquareBracket, //!< Missing a comma or ']' after an array element. + + kParseErrorStringUnicodeEscapeInvalidHex, //!< Incorrect hex digit after \\u escape in string. + kParseErrorStringUnicodeSurrogateInvalid, //!< The surrogate pair in string is invalid. + kParseErrorStringEscapeInvalid, //!< Invalid escape character in string. + kParseErrorStringMissQuotationMark, //!< Missing a closing quotation mark in string. + kParseErrorStringInvalidEncoding, //!< Invalid encoding in string. + + kParseErrorNumberTooBig, //!< Number too big to be stored in double. + kParseErrorNumberMissFraction, //!< Miss fraction part in number. + kParseErrorNumberMissExponent, //!< Miss exponent in number. + + kParseErrorTermination, //!< Parsing was terminated. + kParseErrorUnspecificSyntaxError //!< Unspecific syntax error. +}; + +//! Result of parsing (wraps ParseErrorCode) +/*! + \ingroup RAPIDJSON_ERRORS + \code + Document doc; + ParseResult ok = doc.Parse("[42]"); + if (!ok) { + fprintf(stderr, "JSON parse error: %s (%u)", + GetParseError_En(ok.Code()), ok.Offset()); + exit(EXIT_FAILURE); + } + \endcode + \see GenericReader::Parse, GenericDocument::Parse +*/ +struct ParseResult { + //!! Unspecified boolean type + typedef bool (ParseResult::*BooleanType)() const; +public: + //! Default constructor, no error. + ParseResult() : code_(kParseErrorNone), offset_(0) {} + //! Constructor to set an error. + ParseResult(ParseErrorCode code, size_t offset) : code_(code), offset_(offset) {} + + //! Get the error code. + ParseErrorCode Code() const { return code_; } + //! Get the error offset, if \ref IsError(), 0 otherwise. + size_t Offset() const { return offset_; } + + //! Explicit conversion to \c bool, returns \c true, iff !\ref IsError(). + operator BooleanType() const { return !IsError() ? &ParseResult::IsError : NULL; } + //! Whether the result is an error. + bool IsError() const { return code_ != kParseErrorNone; } + + bool operator==(const ParseResult& that) const { return code_ == that.code_; } + bool operator==(ParseErrorCode code) const { return code_ == code; } + friend bool operator==(ParseErrorCode code, const ParseResult & err) { return code == err.code_; } + + bool operator!=(const ParseResult& that) const { return !(*this == that); } + bool operator!=(ParseErrorCode code) const { return !(*this == code); } + friend bool operator!=(ParseErrorCode code, const ParseResult & err) { return err != code; } + + //! Reset error code. + void Clear() { Set(kParseErrorNone); } + //! Update error code and offset. + void Set(ParseErrorCode code, size_t offset = 0) { code_ = code; offset_ = offset; } + +private: + ParseErrorCode code_; + size_t offset_; +}; + +//! Function pointer type of GetParseError(). +/*! \ingroup RAPIDJSON_ERRORS + + This is the prototype for \c GetParseError_X(), where \c X is a locale. + User can dynamically change locale in runtime, e.g.: +\code + GetParseErrorFunc GetParseError = GetParseError_En; // or whatever + const RAPIDJSON_ERROR_CHARTYPE* s = GetParseError(document.GetParseErrorCode()); +\endcode +*/ +typedef const RAPIDJSON_ERROR_CHARTYPE* (*GetParseErrorFunc)(ParseErrorCode); + +RAPIDJSON_NAMESPACE_END + +#ifdef __clang__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_ERROR_ERROR_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_filereadstream.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_filereadstream.h new file mode 100644 index 00000000..f46a7545 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_filereadstream.h @@ -0,0 +1,99 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_FILEREADSTREAM_H_ +#define RAPIDJSON_FILEREADSTREAM_H_ + +#include "lottie_rapidjson_stream.h" +#include <cstdio> + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(padded) +RAPIDJSON_DIAG_OFF(unreachable-code) +RAPIDJSON_DIAG_OFF(missing-noreturn) +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +//! File byte stream for input using fread(). +/*! + \note implements Stream concept +*/ +class FileReadStream { +public: + typedef char Ch; //!< Character type (byte). + + //! Constructor. + /*! + \param fp File pointer opened for read. + \param buffer user-supplied buffer. + \param bufferSize size of buffer in bytes. Must >=4 bytes. + */ + FileReadStream(std::FILE* fp, char* buffer, size_t bufferSize) : fp_(fp), buffer_(buffer), bufferSize_(bufferSize), bufferLast_(0), current_(buffer_), readCount_(0), count_(0), eof_(false) { + RAPIDJSON_ASSERT(fp_ != 0); + RAPIDJSON_ASSERT(bufferSize >= 4); + Read(); + } + + Ch Peek() const { return *current_; } + Ch Take() { Ch c = *current_; Read(); return c; } + size_t Tell() const { return count_ + static_cast<size_t>(current_ - buffer_); } + + // Not implemented + void Put(Ch) { RAPIDJSON_ASSERT(false); } + void Flush() { RAPIDJSON_ASSERT(false); } + Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } + + // For encoding detection only. + const Ch* Peek4() const { + return (current_ + 4 - !eof_ <= bufferLast_) ? current_ : 0; + } + +private: + void Read() { + if (current_ < bufferLast_) + ++current_; + else if (!eof_) { + count_ += readCount_; + readCount_ = std::fread(buffer_, 1, bufferSize_, fp_); + bufferLast_ = buffer_ + readCount_ - 1; + current_ = buffer_; + + if (readCount_ < bufferSize_) { + buffer_[readCount_] = '\0'; + ++bufferLast_; + eof_ = true; + } + } + } + + std::FILE* fp_; + Ch *buffer_; + size_t bufferSize_; + Ch *bufferLast_; + Ch *current_; + size_t readCount_; + size_t count_; //!< Number of characters read + bool eof_; +}; + +RAPIDJSON_NAMESPACE_END + +#ifdef __clang__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_FILESTREAM_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_filewritestream.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_filewritestream.h new file mode 100644 index 00000000..0a3408ee --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_filewritestream.h @@ -0,0 +1,104 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_FILEWRITESTREAM_H_ +#define RAPIDJSON_FILEWRITESTREAM_H_ + +#include "lottie_rapidjson_stream.h" +#include <cstdio> + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(unreachable-code) +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +//! Wrapper of C file stream for output using fwrite(). +/*! + \note implements Stream concept +*/ +class FileWriteStream { +public: + typedef char Ch; //!< Character type. Only support char. + + FileWriteStream(std::FILE* fp, char* buffer, size_t bufferSize) : fp_(fp), buffer_(buffer), bufferEnd_(buffer + bufferSize), current_(buffer_) { + RAPIDJSON_ASSERT(fp_ != 0); + } + + void Put(char c) { + if (current_ >= bufferEnd_) + Flush(); + + *current_++ = c; + } + + void PutN(char c, size_t n) { + size_t avail = static_cast<size_t>(bufferEnd_ - current_); + while (n > avail) { + std::memset(current_, c, avail); + current_ += avail; + Flush(); + n -= avail; + avail = static_cast<size_t>(bufferEnd_ - current_); + } + + if (n > 0) { + std::memset(current_, c, n); + current_ += n; + } + } + + void Flush() { + if (current_ != buffer_) { + size_t result = std::fwrite(buffer_, 1, static_cast<size_t>(current_ - buffer_), fp_); + if (result < static_cast<size_t>(current_ - buffer_)) { + // failure deliberately ignored at this time + // added to avoid warn_unused_result build errors + } + current_ = buffer_; + } + } + + // Not implemented + char Peek() const { RAPIDJSON_ASSERT(false); return 0; } + char Take() { RAPIDJSON_ASSERT(false); return 0; } + size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; } + char* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + size_t PutEnd(char*) { RAPIDJSON_ASSERT(false); return 0; } + +private: + // Prohibit copy constructor & assignment operator. + FileWriteStream(const FileWriteStream&); + FileWriteStream& operator=(const FileWriteStream&); + + std::FILE* fp_; + char *buffer_; + char *bufferEnd_; + char *current_; +}; + +//! Implement specialized version of PutN() with memset() for better performance. +template<> +inline void PutN(FileWriteStream& stream, char c, size_t n) { + stream.PutN(c, n); +} + +RAPIDJSON_NAMESPACE_END + +#ifdef __clang__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_FILESTREAM_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_fwd.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_fwd.h new file mode 100644 index 00000000..eee2ef8b --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_fwd.h @@ -0,0 +1,151 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_FWD_H_ +#define RAPIDJSON_FWD_H_ + +#include "lottie_rapidjson_rapidjson.h" + +RAPIDJSON_NAMESPACE_BEGIN + +// encodings.h + +template<typename CharType> struct UTF8; +template<typename CharType> struct UTF16; +template<typename CharType> struct UTF16BE; +template<typename CharType> struct UTF16LE; +template<typename CharType> struct UTF32; +template<typename CharType> struct UTF32BE; +template<typename CharType> struct UTF32LE; +template<typename CharType> struct ASCII; +template<typename CharType> struct AutoUTF; + +template<typename SourceEncoding, typename TargetEncoding> +struct Transcoder; + +// allocators.h + +class CrtAllocator; + +template <typename BaseAllocator> +class MemoryPoolAllocator; + +// stream.h + +template <typename Encoding> +struct GenericStringStream; + +typedef GenericStringStream<UTF8<char> > StringStream; + +template <typename Encoding> +struct GenericInsituStringStream; + +typedef GenericInsituStringStream<UTF8<char> > InsituStringStream; + +// stringbuffer.h + +template <typename Encoding, typename Allocator> +class GenericStringBuffer; + +typedef GenericStringBuffer<UTF8<char>, CrtAllocator> StringBuffer; + +// filereadstream.h + +class FileReadStream; + +// filewritestream.h + +class FileWriteStream; + +// memorybuffer.h + +template <typename Allocator> +struct GenericMemoryBuffer; + +typedef GenericMemoryBuffer<CrtAllocator> MemoryBuffer; + +// memorystream.h + +struct MemoryStream; + +// reader.h + +template<typename Encoding, typename Derived> +struct BaseReaderHandler; + +template <typename SourceEncoding, typename TargetEncoding, typename StackAllocator> +class GenericReader; + +typedef GenericReader<UTF8<char>, UTF8<char>, CrtAllocator> Reader; + +// writer.h + +template<typename OutputStream, typename SourceEncoding, typename TargetEncoding, typename StackAllocator, unsigned writeFlags> +class Writer; + +// prettywriter.h + +template<typename OutputStream, typename SourceEncoding, typename TargetEncoding, typename StackAllocator, unsigned writeFlags> +class PrettyWriter; + +// document.h + +template <typename Encoding, typename Allocator> +class GenericMember; + +template <bool Const, typename Encoding, typename Allocator> +class GenericMemberIterator; + +template<typename CharType> +struct GenericStringRef; + +template <typename Encoding, typename Allocator> +class GenericValue; + +typedef GenericValue<UTF8<char>, MemoryPoolAllocator<CrtAllocator> > Value; + +template <typename Encoding, typename Allocator, typename StackAllocator> +class GenericDocument; + +typedef GenericDocument<UTF8<char>, MemoryPoolAllocator<CrtAllocator>, CrtAllocator> Document; + +// pointer.h + +template <typename ValueType, typename Allocator> +class GenericPointer; + +typedef GenericPointer<Value, CrtAllocator> Pointer; + +// schema.h + +template <typename SchemaDocumentType> +class IGenericRemoteSchemaDocumentProvider; + +template <typename ValueT, typename Allocator> +class GenericSchemaDocument; + +typedef GenericSchemaDocument<Value, CrtAllocator> SchemaDocument; +typedef IGenericRemoteSchemaDocumentProvider<SchemaDocument> IRemoteSchemaDocumentProvider; + +template < + typename SchemaDocumentType, + typename OutputHandler, + typename StateAllocator> +class GenericSchemaValidator; + +typedef GenericSchemaValidator<SchemaDocument, BaseReaderHandler<UTF8<char>, void>, CrtAllocator> SchemaValidator; + +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_RAPIDJSONFWD_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_biginteger.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_biginteger.h new file mode 100644 index 00000000..1d5db026 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_biginteger.h @@ -0,0 +1,290 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_BIGINTEGER_H_ +#define RAPIDJSON_BIGINTEGER_H_ + +#include "lottie_rapidjson_rapidjson.h" + +#if defined(_MSC_VER) && !defined(__INTEL_COMPILER) && defined(_M_AMD64) +#include <intrin.h> // for _umul128 +#pragma intrinsic(_umul128) +#endif + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +class BigInteger { +public: + typedef uint64_t Type; + + BigInteger(const BigInteger& rhs) : count_(rhs.count_) { + std::memcpy(digits_, rhs.digits_, count_ * sizeof(Type)); + } + + explicit BigInteger(uint64_t u) : count_(1) { + digits_[0] = u; + } + + BigInteger(const char* decimals, size_t length) : count_(1) { + RAPIDJSON_ASSERT(length > 0); + digits_[0] = 0; + size_t i = 0; + const size_t kMaxDigitPerIteration = 19; // 2^64 = 18446744073709551616 > 10^19 + while (length >= kMaxDigitPerIteration) { + AppendDecimal64(decimals + i, decimals + i + kMaxDigitPerIteration); + length -= kMaxDigitPerIteration; + i += kMaxDigitPerIteration; + } + + if (length > 0) + AppendDecimal64(decimals + i, decimals + i + length); + } + + BigInteger& operator=(const BigInteger &rhs) + { + if (this != &rhs) { + count_ = rhs.count_; + std::memcpy(digits_, rhs.digits_, count_ * sizeof(Type)); + } + return *this; + } + + BigInteger& operator=(uint64_t u) { + digits_[0] = u; + count_ = 1; + return *this; + } + + BigInteger& operator+=(uint64_t u) { + Type backup = digits_[0]; + digits_[0] += u; + for (size_t i = 0; i < count_ - 1; i++) { + if (digits_[i] >= backup) + return *this; // no carry + backup = digits_[i + 1]; + digits_[i + 1] += 1; + } + + // Last carry + if (digits_[count_ - 1] < backup) + PushBack(1); + + return *this; + } + + BigInteger& operator*=(uint64_t u) { + if (u == 0) return *this = 0; + if (u == 1) return *this; + if (*this == 1) return *this = u; + + uint64_t k = 0; + for (size_t i = 0; i < count_; i++) { + uint64_t hi; + digits_[i] = MulAdd64(digits_[i], u, k, &hi); + k = hi; + } + + if (k > 0) + PushBack(k); + + return *this; + } + + BigInteger& operator*=(uint32_t u) { + if (u == 0) return *this = 0; + if (u == 1) return *this; + if (*this == 1) return *this = u; + + uint64_t k = 0; + for (size_t i = 0; i < count_; i++) { + const uint64_t c = digits_[i] >> 32; + const uint64_t d = digits_[i] & 0xFFFFFFFF; + const uint64_t uc = u * c; + const uint64_t ud = u * d; + const uint64_t p0 = ud + k; + const uint64_t p1 = uc + (p0 >> 32); + digits_[i] = (p0 & 0xFFFFFFFF) | (p1 << 32); + k = p1 >> 32; + } + + if (k > 0) + PushBack(k); + + return *this; + } + + BigInteger& operator<<=(size_t shift) { + if (IsZero() || shift == 0) return *this; + + size_t offset = shift / kTypeBit; + size_t interShift = shift % kTypeBit; + RAPIDJSON_ASSERT(count_ + offset <= kCapacity); + + if (interShift == 0) { + std::memmove(digits_ + offset, digits_, count_ * sizeof(Type)); + count_ += offset; + } + else { + digits_[count_] = 0; + for (size_t i = count_; i > 0; i--) + digits_[i + offset] = (digits_[i] << interShift) | (digits_[i - 1] >> (kTypeBit - interShift)); + digits_[offset] = digits_[0] << interShift; + count_ += offset; + if (digits_[count_]) + count_++; + } + + std::memset(digits_, 0, offset * sizeof(Type)); + + return *this; + } + + bool operator==(const BigInteger& rhs) const { + return count_ == rhs.count_ && std::memcmp(digits_, rhs.digits_, count_ * sizeof(Type)) == 0; + } + + bool operator==(const Type rhs) const { + return count_ == 1 && digits_[0] == rhs; + } + + BigInteger& MultiplyPow5(unsigned exp) { + static const uint32_t kPow5[12] = { + 5, + 5 * 5, + 5 * 5 * 5, + 5 * 5 * 5 * 5, + 5 * 5 * 5 * 5 * 5, + 5 * 5 * 5 * 5 * 5 * 5, + 5 * 5 * 5 * 5 * 5 * 5 * 5, + 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5, + 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5, + 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5, + 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5, + 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 + }; + if (exp == 0) return *this; + for (; exp >= 27; exp -= 27) *this *= RAPIDJSON_UINT64_C2(0X6765C793, 0XFA10079D); // 5^27 + for (; exp >= 13; exp -= 13) *this *= static_cast<uint32_t>(1220703125u); // 5^13 + if (exp > 0) *this *= kPow5[exp - 1]; + return *this; + } + + // Compute absolute difference of this and rhs. + // Assume this != rhs + bool Difference(const BigInteger& rhs, BigInteger* out) const { + int cmp = Compare(rhs); + RAPIDJSON_ASSERT(cmp != 0); + const BigInteger *a, *b; // Makes a > b + bool ret; + if (cmp < 0) { a = &rhs; b = this; ret = true; } + else { a = this; b = &rhs; ret = false; } + + Type borrow = 0; + for (size_t i = 0; i < a->count_; i++) { + Type d = a->digits_[i] - borrow; + if (i < b->count_) + d -= b->digits_[i]; + borrow = (d > a->digits_[i]) ? 1 : 0; + out->digits_[i] = d; + if (d != 0) + out->count_ = i + 1; + } + + return ret; + } + + int Compare(const BigInteger& rhs) const { + if (count_ != rhs.count_) + return count_ < rhs.count_ ? -1 : 1; + + for (size_t i = count_; i-- > 0;) + if (digits_[i] != rhs.digits_[i]) + return digits_[i] < rhs.digits_[i] ? -1 : 1; + + return 0; + } + + size_t GetCount() const { return count_; } + Type GetDigit(size_t index) const { RAPIDJSON_ASSERT(index < count_); return digits_[index]; } + bool IsZero() const { return count_ == 1 && digits_[0] == 0; } + +private: + void AppendDecimal64(const char* begin, const char* end) { + uint64_t u = ParseUint64(begin, end); + if (IsZero()) + *this = u; + else { + unsigned exp = static_cast<unsigned>(end - begin); + (MultiplyPow5(exp) <<= exp) += u; // *this = *this * 10^exp + u + } + } + + void PushBack(Type digit) { + RAPIDJSON_ASSERT(count_ < kCapacity); + digits_[count_++] = digit; + } + + static uint64_t ParseUint64(const char* begin, const char* end) { + uint64_t r = 0; + for (const char* p = begin; p != end; ++p) { + RAPIDJSON_ASSERT(*p >= '0' && *p <= '9'); + r = r * 10u + static_cast<unsigned>(*p - '0'); + } + return r; + } + + // Assume a * b + k < 2^128 + static uint64_t MulAdd64(uint64_t a, uint64_t b, uint64_t k, uint64_t* outHigh) { +#if defined(_MSC_VER) && defined(_M_AMD64) + uint64_t low = _umul128(a, b, outHigh) + k; + if (low < k) + (*outHigh)++; + return low; +#elif (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && defined(__x86_64__) + __extension__ typedef unsigned __int128 uint128; + uint128 p = static_cast<uint128>(a) * static_cast<uint128>(b); + p += k; + *outHigh = static_cast<uint64_t>(p >> 64); + return static_cast<uint64_t>(p); +#else + const uint64_t a0 = a & 0xFFFFFFFF, a1 = a >> 32, b0 = b & 0xFFFFFFFF, b1 = b >> 32; + uint64_t x0 = a0 * b0, x1 = a0 * b1, x2 = a1 * b0, x3 = a1 * b1; + x1 += (x0 >> 32); // can't give carry + x1 += x2; + if (x1 < x2) + x3 += (static_cast<uint64_t>(1) << 32); + uint64_t lo = (x1 << 32) + (x0 & 0xFFFFFFFF); + uint64_t hi = x3 + (x1 >> 32); + + lo += k; + if (lo < k) + hi++; + *outHigh = hi; + return lo; +#endif + } + + static const size_t kBitCount = 3328; // 64bit * 54 > 10^1000 + static const size_t kCapacity = kBitCount / sizeof(Type); + static const size_t kTypeBit = sizeof(Type) * 8; + + Type digits_[kCapacity]; + size_t count_; +}; + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_BIGINTEGER_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_clzll.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_clzll.h new file mode 100644 index 00000000..b43ab88d --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_clzll.h @@ -0,0 +1,71 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_CLZLL_H_ +#define RAPIDJSON_CLZLL_H_ + +#include "lottie_rapidjson_rapidjson.h" + +#if defined(_MSC_VER) && !defined(UNDER_CE) +#include <intrin.h> +#if defined(_WIN64) +#pragma intrinsic(_BitScanReverse64) +#else +#pragma intrinsic(_BitScanReverse) +#endif +#endif + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +inline uint32_t clzll(uint64_t x) { + // Passing 0 to __builtin_clzll is UB in GCC and results in an + // infinite loop in the software implementation. + RAPIDJSON_ASSERT(x != 0); + +#if defined(_MSC_VER) && !defined(UNDER_CE) + unsigned long r = 0; +#if defined(_WIN64) + _BitScanReverse64(&r, x); +#else + // Scan the high 32 bits. + if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32))) + return 63 - (r + 32); + + // Scan the low 32 bits. + _BitScanReverse(&r, static_cast<uint32_t>(x & 0xFFFFFFFF)); +#endif // _WIN64 + + return 63 - r; +#elif (defined(__GNUC__) && __GNUC__ >= 4) || RAPIDJSON_HAS_BUILTIN(__builtin_clzll) + // __builtin_clzll wrapper + return static_cast<uint32_t>(__builtin_clzll(x)); +#else + // naive version + uint32_t r = 0; + while (!(x & (static_cast<uint64_t>(1) << 63))) { + x <<= 1; + ++r; + } + + return r; +#endif // _MSC_VER +} + +#define RAPIDJSON_CLZLL RAPIDJSON_NAMESPACE::internal::clzll + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_CLZLL_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_diyfp.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_diyfp.h new file mode 100644 index 00000000..349a1003 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_diyfp.h @@ -0,0 +1,257 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +// This is a C++ header-only implementation of Grisu2 algorithm from the publication: +// Loitsch, Florian. "Printing floating-point numbers quickly and accurately with +// integers." ACM Sigplan Notices 45.6 (2010): 233-243. + +#ifndef RAPIDJSON_DIYFP_H_ +#define RAPIDJSON_DIYFP_H_ + +#include "lottie_rapidjson_rapidjson.h" +#include "lottie_rapidjson_internal_clzll.h" +#include <limits> + +#if defined(_MSC_VER) && defined(_M_AMD64) && !defined(__INTEL_COMPILER) +#include <intrin.h> +#pragma intrinsic(_umul128) +#endif + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +#ifdef __GNUC__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +#endif + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(padded) +#endif + +struct DiyFp { + DiyFp() : f(), e() {} + + DiyFp(uint64_t fp, int exp) : f(fp), e(exp) {} + + explicit DiyFp(double d) { + union { + double d; + uint64_t u64; + } u = { d }; + + int biased_e = static_cast<int>((u.u64 & kDpExponentMask) >> kDpSignificandSize); + uint64_t significand = (u.u64 & kDpSignificandMask); + if (biased_e != 0) { + f = significand + kDpHiddenBit; + e = biased_e - kDpExponentBias; + } + else { + f = significand; + e = kDpMinExponent + 1; + } + } + + DiyFp operator-(const DiyFp& rhs) const { + return DiyFp(f - rhs.f, e); + } + + DiyFp operator*(const DiyFp& rhs) const { +#if defined(_MSC_VER) && defined(_M_AMD64) + uint64_t h; + uint64_t l = _umul128(f, rhs.f, &h); + if (l & (uint64_t(1) << 63)) // rounding + h++; + return DiyFp(h, e + rhs.e + 64); +#elif (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && defined(__x86_64__) + __extension__ typedef unsigned __int128 uint128; + uint128 p = static_cast<uint128>(f) * static_cast<uint128>(rhs.f); + uint64_t h = static_cast<uint64_t>(p >> 64); + uint64_t l = static_cast<uint64_t>(p); + if (l & (uint64_t(1) << 63)) // rounding + h++; + return DiyFp(h, e + rhs.e + 64); +#else + const uint64_t M32 = 0xFFFFFFFF; + const uint64_t a = f >> 32; + const uint64_t b = f & M32; + const uint64_t c = rhs.f >> 32; + const uint64_t d = rhs.f & M32; + const uint64_t ac = a * c; + const uint64_t bc = b * c; + const uint64_t ad = a * d; + const uint64_t bd = b * d; + uint64_t tmp = (bd >> 32) + (ad & M32) + (bc & M32); + tmp += 1U << 31; /// mult_round + return DiyFp(ac + (ad >> 32) + (bc >> 32) + (tmp >> 32), e + rhs.e + 64); +#endif + } + + DiyFp Normalize() const { + int s = static_cast<int>(clzll(f)); + return DiyFp(f << s, e - s); + } + + DiyFp NormalizeBoundary() const { + DiyFp res = *this; + while (!(res.f & (kDpHiddenBit << 1))) { + res.f <<= 1; + res.e--; + } + res.f <<= (kDiySignificandSize - kDpSignificandSize - 2); + res.e = res.e - (kDiySignificandSize - kDpSignificandSize - 2); + return res; + } + + void NormalizedBoundaries(DiyFp* minus, DiyFp* plus) const { + DiyFp pl = DiyFp((f << 1) + 1, e - 1).NormalizeBoundary(); + DiyFp mi = (f == kDpHiddenBit) ? DiyFp((f << 2) - 1, e - 2) : DiyFp((f << 1) - 1, e - 1); + mi.f <<= mi.e - pl.e; + mi.e = pl.e; + *plus = pl; + *minus = mi; + } + + double ToDouble() const { + union { + double d; + uint64_t u64; + }u; + RAPIDJSON_ASSERT(f <= kDpHiddenBit + kDpSignificandMask); + if (e < kDpDenormalExponent) { + // Underflow. + return 0.0; + } + if (e >= kDpMaxExponent) { + // Overflow. + return std::numeric_limits<double>::infinity(); + } + const uint64_t be = (e == kDpDenormalExponent && (f & kDpHiddenBit) == 0) ? 0 : + static_cast<uint64_t>(e + kDpExponentBias); + u.u64 = (f & kDpSignificandMask) | (be << kDpSignificandSize); + return u.d; + } + + static const int kDiySignificandSize = 64; + static const int kDpSignificandSize = 52; + static const int kDpExponentBias = 0x3FF + kDpSignificandSize; + static const int kDpMaxExponent = 0x7FF - kDpExponentBias; + static const int kDpMinExponent = -kDpExponentBias; + static const int kDpDenormalExponent = -kDpExponentBias + 1; + static const uint64_t kDpExponentMask = RAPIDJSON_UINT64_C2(0x7FF00000, 0x00000000); + static const uint64_t kDpSignificandMask = RAPIDJSON_UINT64_C2(0x000FFFFF, 0xFFFFFFFF); + static const uint64_t kDpHiddenBit = RAPIDJSON_UINT64_C2(0x00100000, 0x00000000); + + uint64_t f; + int e; +}; + +inline DiyFp GetCachedPowerByIndex(size_t index) { + // 10^-348, 10^-340, ..., 10^340 + static const uint64_t kCachedPowers_F[] = { + RAPIDJSON_UINT64_C2(0xfa8fd5a0, 0x081c0288), RAPIDJSON_UINT64_C2(0xbaaee17f, 0xa23ebf76), + RAPIDJSON_UINT64_C2(0x8b16fb20, 0x3055ac76), RAPIDJSON_UINT64_C2(0xcf42894a, 0x5dce35ea), + RAPIDJSON_UINT64_C2(0x9a6bb0aa, 0x55653b2d), RAPIDJSON_UINT64_C2(0xe61acf03, 0x3d1a45df), + RAPIDJSON_UINT64_C2(0xab70fe17, 0xc79ac6ca), RAPIDJSON_UINT64_C2(0xff77b1fc, 0xbebcdc4f), + RAPIDJSON_UINT64_C2(0xbe5691ef, 0x416bd60c), RAPIDJSON_UINT64_C2(0x8dd01fad, 0x907ffc3c), + RAPIDJSON_UINT64_C2(0xd3515c28, 0x31559a83), RAPIDJSON_UINT64_C2(0x9d71ac8f, 0xada6c9b5), + RAPIDJSON_UINT64_C2(0xea9c2277, 0x23ee8bcb), RAPIDJSON_UINT64_C2(0xaecc4991, 0x4078536d), + RAPIDJSON_UINT64_C2(0x823c1279, 0x5db6ce57), RAPIDJSON_UINT64_C2(0xc2109436, 0x4dfb5637), + RAPIDJSON_UINT64_C2(0x9096ea6f, 0x3848984f), RAPIDJSON_UINT64_C2(0xd77485cb, 0x25823ac7), + RAPIDJSON_UINT64_C2(0xa086cfcd, 0x97bf97f4), RAPIDJSON_UINT64_C2(0xef340a98, 0x172aace5), + RAPIDJSON_UINT64_C2(0xb23867fb, 0x2a35b28e), RAPIDJSON_UINT64_C2(0x84c8d4df, 0xd2c63f3b), + RAPIDJSON_UINT64_C2(0xc5dd4427, 0x1ad3cdba), RAPIDJSON_UINT64_C2(0x936b9fce, 0xbb25c996), + RAPIDJSON_UINT64_C2(0xdbac6c24, 0x7d62a584), RAPIDJSON_UINT64_C2(0xa3ab6658, 0x0d5fdaf6), + RAPIDJSON_UINT64_C2(0xf3e2f893, 0xdec3f126), RAPIDJSON_UINT64_C2(0xb5b5ada8, 0xaaff80b8), + RAPIDJSON_UINT64_C2(0x87625f05, 0x6c7c4a8b), RAPIDJSON_UINT64_C2(0xc9bcff60, 0x34c13053), + RAPIDJSON_UINT64_C2(0x964e858c, 0x91ba2655), RAPIDJSON_UINT64_C2(0xdff97724, 0x70297ebd), + RAPIDJSON_UINT64_C2(0xa6dfbd9f, 0xb8e5b88f), RAPIDJSON_UINT64_C2(0xf8a95fcf, 0x88747d94), + RAPIDJSON_UINT64_C2(0xb9447093, 0x8fa89bcf), RAPIDJSON_UINT64_C2(0x8a08f0f8, 0xbf0f156b), + RAPIDJSON_UINT64_C2(0xcdb02555, 0x653131b6), RAPIDJSON_UINT64_C2(0x993fe2c6, 0xd07b7fac), + RAPIDJSON_UINT64_C2(0xe45c10c4, 0x2a2b3b06), RAPIDJSON_UINT64_C2(0xaa242499, 0x697392d3), + RAPIDJSON_UINT64_C2(0xfd87b5f2, 0x8300ca0e), RAPIDJSON_UINT64_C2(0xbce50864, 0x92111aeb), + RAPIDJSON_UINT64_C2(0x8cbccc09, 0x6f5088cc), RAPIDJSON_UINT64_C2(0xd1b71758, 0xe219652c), + RAPIDJSON_UINT64_C2(0x9c400000, 0x00000000), RAPIDJSON_UINT64_C2(0xe8d4a510, 0x00000000), + RAPIDJSON_UINT64_C2(0xad78ebc5, 0xac620000), RAPIDJSON_UINT64_C2(0x813f3978, 0xf8940984), + RAPIDJSON_UINT64_C2(0xc097ce7b, 0xc90715b3), RAPIDJSON_UINT64_C2(0x8f7e32ce, 0x7bea5c70), + RAPIDJSON_UINT64_C2(0xd5d238a4, 0xabe98068), RAPIDJSON_UINT64_C2(0x9f4f2726, 0x179a2245), + RAPIDJSON_UINT64_C2(0xed63a231, 0xd4c4fb27), RAPIDJSON_UINT64_C2(0xb0de6538, 0x8cc8ada8), + RAPIDJSON_UINT64_C2(0x83c7088e, 0x1aab65db), RAPIDJSON_UINT64_C2(0xc45d1df9, 0x42711d9a), + RAPIDJSON_UINT64_C2(0x924d692c, 0xa61be758), RAPIDJSON_UINT64_C2(0xda01ee64, 0x1a708dea), + RAPIDJSON_UINT64_C2(0xa26da399, 0x9aef774a), RAPIDJSON_UINT64_C2(0xf209787b, 0xb47d6b85), + RAPIDJSON_UINT64_C2(0xb454e4a1, 0x79dd1877), RAPIDJSON_UINT64_C2(0x865b8692, 0x5b9bc5c2), + RAPIDJSON_UINT64_C2(0xc83553c5, 0xc8965d3d), RAPIDJSON_UINT64_C2(0x952ab45c, 0xfa97a0b3), + RAPIDJSON_UINT64_C2(0xde469fbd, 0x99a05fe3), RAPIDJSON_UINT64_C2(0xa59bc234, 0xdb398c25), + RAPIDJSON_UINT64_C2(0xf6c69a72, 0xa3989f5c), RAPIDJSON_UINT64_C2(0xb7dcbf53, 0x54e9bece), + RAPIDJSON_UINT64_C2(0x88fcf317, 0xf22241e2), RAPIDJSON_UINT64_C2(0xcc20ce9b, 0xd35c78a5), + RAPIDJSON_UINT64_C2(0x98165af3, 0x7b2153df), RAPIDJSON_UINT64_C2(0xe2a0b5dc, 0x971f303a), + RAPIDJSON_UINT64_C2(0xa8d9d153, 0x5ce3b396), RAPIDJSON_UINT64_C2(0xfb9b7cd9, 0xa4a7443c), + RAPIDJSON_UINT64_C2(0xbb764c4c, 0xa7a44410), RAPIDJSON_UINT64_C2(0x8bab8eef, 0xb6409c1a), + RAPIDJSON_UINT64_C2(0xd01fef10, 0xa657842c), RAPIDJSON_UINT64_C2(0x9b10a4e5, 0xe9913129), + RAPIDJSON_UINT64_C2(0xe7109bfb, 0xa19c0c9d), RAPIDJSON_UINT64_C2(0xac2820d9, 0x623bf429), + RAPIDJSON_UINT64_C2(0x80444b5e, 0x7aa7cf85), RAPIDJSON_UINT64_C2(0xbf21e440, 0x03acdd2d), + RAPIDJSON_UINT64_C2(0x8e679c2f, 0x5e44ff8f), RAPIDJSON_UINT64_C2(0xd433179d, 0x9c8cb841), + RAPIDJSON_UINT64_C2(0x9e19db92, 0xb4e31ba9), RAPIDJSON_UINT64_C2(0xeb96bf6e, 0xbadf77d9), + RAPIDJSON_UINT64_C2(0xaf87023b, 0x9bf0ee6b) + }; + static const int16_t kCachedPowers_E[] = { + -1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007, -980, + -954, -927, -901, -874, -847, -821, -794, -768, -741, -715, + -688, -661, -635, -608, -582, -555, -529, -502, -475, -449, + -422, -396, -369, -343, -316, -289, -263, -236, -210, -183, + -157, -130, -103, -77, -50, -24, 3, 30, 56, 83, + 109, 136, 162, 189, 216, 242, 269, 295, 322, 348, + 375, 402, 428, 455, 481, 508, 534, 561, 588, 614, + 641, 667, 694, 720, 747, 774, 800, 827, 853, 880, + 907, 933, 960, 986, 1013, 1039, 1066 + }; + RAPIDJSON_ASSERT(index < 87); + return DiyFp(kCachedPowers_F[index], kCachedPowers_E[index]); +} + +inline DiyFp GetCachedPower(int e, int* K) { + + //int k = static_cast<int>(ceil((-61 - e) * 0.30102999566398114)) + 374; + double dk = (-61 - e) * 0.30102999566398114 + 347; // dk must be positive, so can do ceiling in positive + int k = static_cast<int>(dk); + if (dk - k > 0.0) + k++; + + unsigned index = static_cast<unsigned>((k >> 3) + 1); + *K = -(-348 + static_cast<int>(index << 3)); // decimal exponent no need lookup table + + return GetCachedPowerByIndex(index); +} + +inline DiyFp GetCachedPower10(int exp, int *outExp) { + RAPIDJSON_ASSERT(exp >= -348); + unsigned index = static_cast<unsigned>(exp + 348) / 8u; + *outExp = -348 + static_cast<int>(index) * 8; + return GetCachedPowerByIndex(index); +} + +#ifdef __GNUC__ +RAPIDJSON_DIAG_POP +#endif + +#ifdef __clang__ +RAPIDJSON_DIAG_POP +RAPIDJSON_DIAG_OFF(padded) +#endif + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_DIYFP_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_dtoa.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_dtoa.h new file mode 100644 index 00000000..c3be702c --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_dtoa.h @@ -0,0 +1,245 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +// This is a C++ header-only implementation of Grisu2 algorithm from the publication: +// Loitsch, Florian. "Printing floating-point numbers quickly and accurately with +// integers." ACM Sigplan Notices 45.6 (2010): 233-243. + +#ifndef RAPIDJSON_DTOA_ +#define RAPIDJSON_DTOA_ + +#include "lottie_rapidjson_internal_itoa.h" +#include "lottie_rapidjson_internal_diyfp.h" +#include "lottie_rapidjson_internal_ieee754.h" + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +#ifdef __GNUC__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +RAPIDJSON_DIAG_OFF(array-bounds) // some gcc versions generate wrong warnings https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59124 +#endif + +inline void GrisuRound(char* buffer, int len, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t wp_w) { + while (rest < wp_w && delta - rest >= ten_kappa && + (rest + ten_kappa < wp_w || /// closer + wp_w - rest > rest + ten_kappa - wp_w)) { + buffer[len - 1]--; + rest += ten_kappa; + } +} + +inline int CountDecimalDigit32(uint32_t n) { + // Simple pure C++ implementation was faster than __builtin_clz version in this situation. + if (n < 10) return 1; + if (n < 100) return 2; + if (n < 1000) return 3; + if (n < 10000) return 4; + if (n < 100000) return 5; + if (n < 1000000) return 6; + if (n < 10000000) return 7; + if (n < 100000000) return 8; + // Will not reach 10 digits in DigitGen() + //if (n < 1000000000) return 9; + //return 10; + return 9; +} + +inline void DigitGen(const DiyFp& W, const DiyFp& Mp, uint64_t delta, char* buffer, int* len, int* K) { + static const uint32_t kPow10[] = { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000 }; + const DiyFp one(uint64_t(1) << -Mp.e, Mp.e); + const DiyFp wp_w = Mp - W; + uint32_t p1 = static_cast<uint32_t>(Mp.f >> -one.e); + uint64_t p2 = Mp.f & (one.f - 1); + int kappa = CountDecimalDigit32(p1); // kappa in [0, 9] + *len = 0; + + while (kappa > 0) { + uint32_t d = 0; + switch (kappa) { + case 9: d = p1 / 100000000; p1 %= 100000000; break; + case 8: d = p1 / 10000000; p1 %= 10000000; break; + case 7: d = p1 / 1000000; p1 %= 1000000; break; + case 6: d = p1 / 100000; p1 %= 100000; break; + case 5: d = p1 / 10000; p1 %= 10000; break; + case 4: d = p1 / 1000; p1 %= 1000; break; + case 3: d = p1 / 100; p1 %= 100; break; + case 2: d = p1 / 10; p1 %= 10; break; + case 1: d = p1; p1 = 0; break; + default:; + } + if (d || *len) + buffer[(*len)++] = static_cast<char>('0' + static_cast<char>(d)); + kappa--; + uint64_t tmp = (static_cast<uint64_t>(p1) << -one.e) + p2; + if (tmp <= delta) { + *K += kappa; + GrisuRound(buffer, *len, delta, tmp, static_cast<uint64_t>(kPow10[kappa]) << -one.e, wp_w.f); + return; + } + } + + // kappa = 0 + for (;;) { + p2 *= 10; + delta *= 10; + char d = static_cast<char>(p2 >> -one.e); + if (d || *len) + buffer[(*len)++] = static_cast<char>('0' + d); + p2 &= one.f - 1; + kappa--; + if (p2 < delta) { + *K += kappa; + int index = -kappa; + GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * (index < 9 ? kPow10[index] : 0)); + return; + } + } +} + +inline void Grisu2(double value, char* buffer, int* length, int* K) { + const DiyFp v(value); + DiyFp w_m, w_p; + v.NormalizedBoundaries(&w_m, &w_p); + + const DiyFp c_mk = GetCachedPower(w_p.e, K); + const DiyFp W = v.Normalize() * c_mk; + DiyFp Wp = w_p * c_mk; + DiyFp Wm = w_m * c_mk; + Wm.f++; + Wp.f--; + DigitGen(W, Wp, Wp.f - Wm.f, buffer, length, K); +} + +inline char* WriteExponent(int K, char* buffer) { + if (K < 0) { + *buffer++ = '-'; + K = -K; + } + + if (K >= 100) { + *buffer++ = static_cast<char>('0' + static_cast<char>(K / 100)); + K %= 100; + const char* d = GetDigitsLut() + K * 2; + *buffer++ = d[0]; + *buffer++ = d[1]; + } + else if (K >= 10) { + const char* d = GetDigitsLut() + K * 2; + *buffer++ = d[0]; + *buffer++ = d[1]; + } + else + *buffer++ = static_cast<char>('0' + static_cast<char>(K)); + + return buffer; +} + +inline char* Prettify(char* buffer, int length, int k, int maxDecimalPlaces) { + const int kk = length + k; // 10^(kk-1) <= v < 10^kk + + if (0 <= k && kk <= 21) { + // 1234e7 -> 12340000000 + for (int i = length; i < kk; i++) + buffer[i] = '0'; + buffer[kk] = '.'; + buffer[kk + 1] = '0'; + return &buffer[kk + 2]; + } + else if (0 < kk && kk <= 21) { + // 1234e-2 -> 12.34 + std::memmove(&buffer[kk + 1], &buffer[kk], static_cast<size_t>(length - kk)); + buffer[kk] = '.'; + if (0 > k + maxDecimalPlaces) { + // When maxDecimalPlaces = 2, 1.2345 -> 1.23, 1.102 -> 1.1 + // Remove extra trailing zeros (at least one) after truncation. + for (int i = kk + maxDecimalPlaces; i > kk + 1; i--) + if (buffer[i] != '0') + return &buffer[i + 1]; + return &buffer[kk + 2]; // Reserve one zero + } + else + return &buffer[length + 1]; + } + else if (-6 < kk && kk <= 0) { + // 1234e-6 -> 0.001234 + const int offset = 2 - kk; + std::memmove(&buffer[offset], &buffer[0], static_cast<size_t>(length)); + buffer[0] = '0'; + buffer[1] = '.'; + for (int i = 2; i < offset; i++) + buffer[i] = '0'; + if (length - kk > maxDecimalPlaces) { + // When maxDecimalPlaces = 2, 0.123 -> 0.12, 0.102 -> 0.1 + // Remove extra trailing zeros (at least one) after truncation. + for (int i = maxDecimalPlaces + 1; i > 2; i--) + if (buffer[i] != '0') + return &buffer[i + 1]; + return &buffer[3]; // Reserve one zero + } + else + return &buffer[length + offset]; + } + else if (kk < -maxDecimalPlaces) { + // Truncate to zero + buffer[0] = '0'; + buffer[1] = '.'; + buffer[2] = '0'; + return &buffer[3]; + } + else if (length == 1) { + // 1e30 + buffer[1] = 'e'; + return WriteExponent(kk - 1, &buffer[2]); + } + else { + // 1234e30 -> 1.234e33 + std::memmove(&buffer[2], &buffer[1], static_cast<size_t>(length - 1)); + buffer[1] = '.'; + buffer[length + 1] = 'e'; + return WriteExponent(kk - 1, &buffer[0 + length + 2]); + } +} + +inline char* dtoa(double value, char* buffer, int maxDecimalPlaces = 324) { + RAPIDJSON_ASSERT(maxDecimalPlaces >= 1); + Double d(value); + if (d.IsZero()) { + if (d.Sign()) + *buffer++ = '-'; // -0.0, Issue #289 + buffer[0] = '0'; + buffer[1] = '.'; + buffer[2] = '0'; + return &buffer[3]; + } + else { + if (value < 0) { + *buffer++ = '-'; + value = -value; + } + int length, K; + Grisu2(value, buffer, &length, &K); + return Prettify(buffer, length, K, maxDecimalPlaces); + } +} + +#ifdef __GNUC__ +RAPIDJSON_DIAG_POP +#endif + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_DTOA_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_ieee754.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_ieee754.h new file mode 100644 index 00000000..bb004743 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_ieee754.h @@ -0,0 +1,78 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_IEEE754_ +#define RAPIDJSON_IEEE754_ + +#include "lottie_rapidjson_rapidjson.h" + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +class Double { +public: + Double() {} + Double(double d) : d_(d) {} + Double(uint64_t u) : u_(u) {} + + double Value() const { return d_; } + uint64_t Uint64Value() const { return u_; } + + double NextPositiveDouble() const { + RAPIDJSON_ASSERT(!Sign()); + return Double(u_ + 1).Value(); + } + + bool Sign() const { return (u_ & kSignMask) != 0; } + uint64_t Significand() const { return u_ & kSignificandMask; } + int Exponent() const { return static_cast<int>(((u_ & kExponentMask) >> kSignificandSize) - kExponentBias); } + + bool IsNan() const { return (u_ & kExponentMask) == kExponentMask && Significand() != 0; } + bool IsInf() const { return (u_ & kExponentMask) == kExponentMask && Significand() == 0; } + bool IsNanOrInf() const { return (u_ & kExponentMask) == kExponentMask; } + bool IsNormal() const { return (u_ & kExponentMask) != 0 || Significand() == 0; } + bool IsZero() const { return (u_ & (kExponentMask | kSignificandMask)) == 0; } + + uint64_t IntegerSignificand() const { return IsNormal() ? Significand() | kHiddenBit : Significand(); } + int IntegerExponent() const { return (IsNormal() ? Exponent() : kDenormalExponent) - kSignificandSize; } + uint64_t ToBias() const { return (u_ & kSignMask) ? ~u_ + 1 : u_ | kSignMask; } + + static int EffectiveSignificandSize(int order) { + if (order >= -1021) + return 53; + else if (order <= -1074) + return 0; + else + return order + 1074; + } + +private: + static const int kSignificandSize = 52; + static const int kExponentBias = 0x3FF; + static const int kDenormalExponent = 1 - kExponentBias; + static const uint64_t kSignMask = RAPIDJSON_UINT64_C2(0x80000000, 0x00000000); + static const uint64_t kExponentMask = RAPIDJSON_UINT64_C2(0x7FF00000, 0x00000000); + static const uint64_t kSignificandMask = RAPIDJSON_UINT64_C2(0x000FFFFF, 0xFFFFFFFF); + static const uint64_t kHiddenBit = RAPIDJSON_UINT64_C2(0x00100000, 0x00000000); + + union { + double d_; + uint64_t u_; + }; +}; + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_IEEE754_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_itoa.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_itoa.h new file mode 100644 index 00000000..e63b1308 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_itoa.h @@ -0,0 +1,308 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_ITOA_ +#define RAPIDJSON_ITOA_ + +#include "lottie_rapidjson_rapidjson.h" + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +inline const char* GetDigitsLut() { + static const char cDigitsLut[200] = { + '0','0','0','1','0','2','0','3','0','4','0','5','0','6','0','7','0','8','0','9', + '1','0','1','1','1','2','1','3','1','4','1','5','1','6','1','7','1','8','1','9', + '2','0','2','1','2','2','2','3','2','4','2','5','2','6','2','7','2','8','2','9', + '3','0','3','1','3','2','3','3','3','4','3','5','3','6','3','7','3','8','3','9', + '4','0','4','1','4','2','4','3','4','4','4','5','4','6','4','7','4','8','4','9', + '5','0','5','1','5','2','5','3','5','4','5','5','5','6','5','7','5','8','5','9', + '6','0','6','1','6','2','6','3','6','4','6','5','6','6','6','7','6','8','6','9', + '7','0','7','1','7','2','7','3','7','4','7','5','7','6','7','7','7','8','7','9', + '8','0','8','1','8','2','8','3','8','4','8','5','8','6','8','7','8','8','8','9', + '9','0','9','1','9','2','9','3','9','4','9','5','9','6','9','7','9','8','9','9' + }; + return cDigitsLut; +} + +inline char* u32toa(uint32_t value, char* buffer) { + RAPIDJSON_ASSERT(buffer != 0); + + const char* cDigitsLut = GetDigitsLut(); + + if (value < 10000) { + const uint32_t d1 = (value / 100) << 1; + const uint32_t d2 = (value % 100) << 1; + + if (value >= 1000) + *buffer++ = cDigitsLut[d1]; + if (value >= 100) + *buffer++ = cDigitsLut[d1 + 1]; + if (value >= 10) + *buffer++ = cDigitsLut[d2]; + *buffer++ = cDigitsLut[d2 + 1]; + } + else if (value < 100000000) { + // value = bbbbcccc + const uint32_t b = value / 10000; + const uint32_t c = value % 10000; + + const uint32_t d1 = (b / 100) << 1; + const uint32_t d2 = (b % 100) << 1; + + const uint32_t d3 = (c / 100) << 1; + const uint32_t d4 = (c % 100) << 1; + + if (value >= 10000000) + *buffer++ = cDigitsLut[d1]; + if (value >= 1000000) + *buffer++ = cDigitsLut[d1 + 1]; + if (value >= 100000) + *buffer++ = cDigitsLut[d2]; + *buffer++ = cDigitsLut[d2 + 1]; + + *buffer++ = cDigitsLut[d3]; + *buffer++ = cDigitsLut[d3 + 1]; + *buffer++ = cDigitsLut[d4]; + *buffer++ = cDigitsLut[d4 + 1]; + } + else { + // value = aabbbbcccc in decimal + + const uint32_t a = value / 100000000; // 1 to 42 + value %= 100000000; + + if (a >= 10) { + const unsigned i = a << 1; + *buffer++ = cDigitsLut[i]; + *buffer++ = cDigitsLut[i + 1]; + } + else + *buffer++ = static_cast<char>('0' + static_cast<char>(a)); + + const uint32_t b = value / 10000; // 0 to 9999 + const uint32_t c = value % 10000; // 0 to 9999 + + const uint32_t d1 = (b / 100) << 1; + const uint32_t d2 = (b % 100) << 1; + + const uint32_t d3 = (c / 100) << 1; + const uint32_t d4 = (c % 100) << 1; + + *buffer++ = cDigitsLut[d1]; + *buffer++ = cDigitsLut[d1 + 1]; + *buffer++ = cDigitsLut[d2]; + *buffer++ = cDigitsLut[d2 + 1]; + *buffer++ = cDigitsLut[d3]; + *buffer++ = cDigitsLut[d3 + 1]; + *buffer++ = cDigitsLut[d4]; + *buffer++ = cDigitsLut[d4 + 1]; + } + return buffer; +} + +inline char* i32toa(int32_t value, char* buffer) { + RAPIDJSON_ASSERT(buffer != 0); + uint32_t u = static_cast<uint32_t>(value); + if (value < 0) { + *buffer++ = '-'; + u = ~u + 1; + } + + return u32toa(u, buffer); +} + +inline char* u64toa(uint64_t value, char* buffer) { + RAPIDJSON_ASSERT(buffer != 0); + const char* cDigitsLut = GetDigitsLut(); + const uint64_t kTen8 = 100000000; + const uint64_t kTen9 = kTen8 * 10; + const uint64_t kTen10 = kTen8 * 100; + const uint64_t kTen11 = kTen8 * 1000; + const uint64_t kTen12 = kTen8 * 10000; + const uint64_t kTen13 = kTen8 * 100000; + const uint64_t kTen14 = kTen8 * 1000000; + const uint64_t kTen15 = kTen8 * 10000000; + const uint64_t kTen16 = kTen8 * kTen8; + + if (value < kTen8) { + uint32_t v = static_cast<uint32_t>(value); + if (v < 10000) { + const uint32_t d1 = (v / 100) << 1; + const uint32_t d2 = (v % 100) << 1; + + if (v >= 1000) + *buffer++ = cDigitsLut[d1]; + if (v >= 100) + *buffer++ = cDigitsLut[d1 + 1]; + if (v >= 10) + *buffer++ = cDigitsLut[d2]; + *buffer++ = cDigitsLut[d2 + 1]; + } + else { + // value = bbbbcccc + const uint32_t b = v / 10000; + const uint32_t c = v % 10000; + + const uint32_t d1 = (b / 100) << 1; + const uint32_t d2 = (b % 100) << 1; + + const uint32_t d3 = (c / 100) << 1; + const uint32_t d4 = (c % 100) << 1; + + if (value >= 10000000) + *buffer++ = cDigitsLut[d1]; + if (value >= 1000000) + *buffer++ = cDigitsLut[d1 + 1]; + if (value >= 100000) + *buffer++ = cDigitsLut[d2]; + *buffer++ = cDigitsLut[d2 + 1]; + + *buffer++ = cDigitsLut[d3]; + *buffer++ = cDigitsLut[d3 + 1]; + *buffer++ = cDigitsLut[d4]; + *buffer++ = cDigitsLut[d4 + 1]; + } + } + else if (value < kTen16) { + const uint32_t v0 = static_cast<uint32_t>(value / kTen8); + const uint32_t v1 = static_cast<uint32_t>(value % kTen8); + + const uint32_t b0 = v0 / 10000; + const uint32_t c0 = v0 % 10000; + + const uint32_t d1 = (b0 / 100) << 1; + const uint32_t d2 = (b0 % 100) << 1; + + const uint32_t d3 = (c0 / 100) << 1; + const uint32_t d4 = (c0 % 100) << 1; + + const uint32_t b1 = v1 / 10000; + const uint32_t c1 = v1 % 10000; + + const uint32_t d5 = (b1 / 100) << 1; + const uint32_t d6 = (b1 % 100) << 1; + + const uint32_t d7 = (c1 / 100) << 1; + const uint32_t d8 = (c1 % 100) << 1; + + if (value >= kTen15) + *buffer++ = cDigitsLut[d1]; + if (value >= kTen14) + *buffer++ = cDigitsLut[d1 + 1]; + if (value >= kTen13) + *buffer++ = cDigitsLut[d2]; + if (value >= kTen12) + *buffer++ = cDigitsLut[d2 + 1]; + if (value >= kTen11) + *buffer++ = cDigitsLut[d3]; + if (value >= kTen10) + *buffer++ = cDigitsLut[d3 + 1]; + if (value >= kTen9) + *buffer++ = cDigitsLut[d4]; + + *buffer++ = cDigitsLut[d4 + 1]; + *buffer++ = cDigitsLut[d5]; + *buffer++ = cDigitsLut[d5 + 1]; + *buffer++ = cDigitsLut[d6]; + *buffer++ = cDigitsLut[d6 + 1]; + *buffer++ = cDigitsLut[d7]; + *buffer++ = cDigitsLut[d7 + 1]; + *buffer++ = cDigitsLut[d8]; + *buffer++ = cDigitsLut[d8 + 1]; + } + else { + const uint32_t a = static_cast<uint32_t>(value / kTen16); // 1 to 1844 + value %= kTen16; + + if (a < 10) + *buffer++ = static_cast<char>('0' + static_cast<char>(a)); + else if (a < 100) { + const uint32_t i = a << 1; + *buffer++ = cDigitsLut[i]; + *buffer++ = cDigitsLut[i + 1]; + } + else if (a < 1000) { + *buffer++ = static_cast<char>('0' + static_cast<char>(a / 100)); + + const uint32_t i = (a % 100) << 1; + *buffer++ = cDigitsLut[i]; + *buffer++ = cDigitsLut[i + 1]; + } + else { + const uint32_t i = (a / 100) << 1; + const uint32_t j = (a % 100) << 1; + *buffer++ = cDigitsLut[i]; + *buffer++ = cDigitsLut[i + 1]; + *buffer++ = cDigitsLut[j]; + *buffer++ = cDigitsLut[j + 1]; + } + + const uint32_t v0 = static_cast<uint32_t>(value / kTen8); + const uint32_t v1 = static_cast<uint32_t>(value % kTen8); + + const uint32_t b0 = v0 / 10000; + const uint32_t c0 = v0 % 10000; + + const uint32_t d1 = (b0 / 100) << 1; + const uint32_t d2 = (b0 % 100) << 1; + + const uint32_t d3 = (c0 / 100) << 1; + const uint32_t d4 = (c0 % 100) << 1; + + const uint32_t b1 = v1 / 10000; + const uint32_t c1 = v1 % 10000; + + const uint32_t d5 = (b1 / 100) << 1; + const uint32_t d6 = (b1 % 100) << 1; + + const uint32_t d7 = (c1 / 100) << 1; + const uint32_t d8 = (c1 % 100) << 1; + + *buffer++ = cDigitsLut[d1]; + *buffer++ = cDigitsLut[d1 + 1]; + *buffer++ = cDigitsLut[d2]; + *buffer++ = cDigitsLut[d2 + 1]; + *buffer++ = cDigitsLut[d3]; + *buffer++ = cDigitsLut[d3 + 1]; + *buffer++ = cDigitsLut[d4]; + *buffer++ = cDigitsLut[d4 + 1]; + *buffer++ = cDigitsLut[d5]; + *buffer++ = cDigitsLut[d5 + 1]; + *buffer++ = cDigitsLut[d6]; + *buffer++ = cDigitsLut[d6 + 1]; + *buffer++ = cDigitsLut[d7]; + *buffer++ = cDigitsLut[d7 + 1]; + *buffer++ = cDigitsLut[d8]; + *buffer++ = cDigitsLut[d8 + 1]; + } + + return buffer; +} + +inline char* i64toa(int64_t value, char* buffer) { + RAPIDJSON_ASSERT(buffer != 0); + uint64_t u = static_cast<uint64_t>(value); + if (value < 0) { + *buffer++ = '-'; + u = ~u + 1; + } + + return u64toa(u, buffer); +} + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_ITOA_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_meta.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_meta.h new file mode 100644 index 00000000..dfc590e6 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_meta.h @@ -0,0 +1,186 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_INTERNAL_META_H_ +#define RAPIDJSON_INTERNAL_META_H_ + +#include "lottie_rapidjson_rapidjson.h" + +#ifdef __GNUC__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +#endif + +#if defined(_MSC_VER) && !defined(__clang__) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(6334) +#endif + +#if RAPIDJSON_HAS_CXX11_TYPETRAITS +#include <type_traits> +#endif + +//@cond RAPIDJSON_INTERNAL +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +// Helper to wrap/convert arbitrary types to void, useful for arbitrary type matching +template <typename T> struct Void { typedef void Type; }; + +/////////////////////////////////////////////////////////////////////////////// +// BoolType, TrueType, FalseType +// +template <bool Cond> struct BoolType { + static const bool Value = Cond; + typedef BoolType Type; +}; +typedef BoolType<true> TrueType; +typedef BoolType<false> FalseType; + + +/////////////////////////////////////////////////////////////////////////////// +// SelectIf, BoolExpr, NotExpr, AndExpr, OrExpr +// + +template <bool C> struct SelectIfImpl { template <typename T1, typename T2> struct Apply { typedef T1 Type; }; }; +template <> struct SelectIfImpl<false> { template <typename T1, typename T2> struct Apply { typedef T2 Type; }; }; +template <bool C, typename T1, typename T2> struct SelectIfCond : SelectIfImpl<C>::template Apply<T1,T2> {}; +template <typename C, typename T1, typename T2> struct SelectIf : SelectIfCond<C::Value, T1, T2> {}; + +template <bool Cond1, bool Cond2> struct AndExprCond : FalseType {}; +template <> struct AndExprCond<true, true> : TrueType {}; +template <bool Cond1, bool Cond2> struct OrExprCond : TrueType {}; +template <> struct OrExprCond<false, false> : FalseType {}; + +template <typename C> struct BoolExpr : SelectIf<C,TrueType,FalseType>::Type {}; +template <typename C> struct NotExpr : SelectIf<C,FalseType,TrueType>::Type {}; +template <typename C1, typename C2> struct AndExpr : AndExprCond<C1::Value, C2::Value>::Type {}; +template <typename C1, typename C2> struct OrExpr : OrExprCond<C1::Value, C2::Value>::Type {}; + + +/////////////////////////////////////////////////////////////////////////////// +// AddConst, MaybeAddConst, RemoveConst +template <typename T> struct AddConst { typedef const T Type; }; +template <bool Constify, typename T> struct MaybeAddConst : SelectIfCond<Constify, const T, T> {}; +template <typename T> struct RemoveConst { typedef T Type; }; +template <typename T> struct RemoveConst<const T> { typedef T Type; }; + + +/////////////////////////////////////////////////////////////////////////////// +// IsSame, IsConst, IsMoreConst, IsPointer +// +template <typename T, typename U> struct IsSame : FalseType {}; +template <typename T> struct IsSame<T, T> : TrueType {}; + +template <typename T> struct IsConst : FalseType {}; +template <typename T> struct IsConst<const T> : TrueType {}; + +template <typename CT, typename T> +struct IsMoreConst + : AndExpr<IsSame<typename RemoveConst<CT>::Type, typename RemoveConst<T>::Type>, + BoolType<IsConst<CT>::Value >= IsConst<T>::Value> >::Type {}; + +template <typename T> struct IsPointer : FalseType {}; +template <typename T> struct IsPointer<T*> : TrueType {}; + +/////////////////////////////////////////////////////////////////////////////// +// IsBaseOf +// +#if RAPIDJSON_HAS_CXX11_TYPETRAITS + +template <typename B, typename D> struct IsBaseOf + : BoolType< ::std::is_base_of<B,D>::value> {}; + +#else // simplified version adopted from Boost + +template<typename B, typename D> struct IsBaseOfImpl { + RAPIDJSON_STATIC_ASSERT(sizeof(B) != 0); + RAPIDJSON_STATIC_ASSERT(sizeof(D) != 0); + + typedef char (&Yes)[1]; + typedef char (&No) [2]; + + template <typename T> + static Yes Check(const D*, T); + static No Check(const B*, int); + + struct Host { + operator const B*() const; + operator const D*(); + }; + + enum { Value = (sizeof(Check(Host(), 0)) == sizeof(Yes)) }; +}; + +template <typename B, typename D> struct IsBaseOf + : OrExpr<IsSame<B, D>, BoolExpr<IsBaseOfImpl<B, D> > >::Type {}; + +#endif // RAPIDJSON_HAS_CXX11_TYPETRAITS + + +////////////////////////////////////////////////////////////////////////// +// EnableIf / DisableIf +// +template <bool Condition, typename T = void> struct EnableIfCond { typedef T Type; }; +template <typename T> struct EnableIfCond<false, T> { /* empty */ }; + +template <bool Condition, typename T = void> struct DisableIfCond { typedef T Type; }; +template <typename T> struct DisableIfCond<true, T> { /* empty */ }; + +template <typename Condition, typename T = void> +struct EnableIf : EnableIfCond<Condition::Value, T> {}; + +template <typename Condition, typename T = void> +struct DisableIf : DisableIfCond<Condition::Value, T> {}; + +// SFINAE helpers +struct SfinaeTag {}; +template <typename T> struct RemoveSfinaeTag; +template <typename T> struct RemoveSfinaeTag<SfinaeTag&(*)(T)> { typedef T Type; }; + +#define RAPIDJSON_REMOVEFPTR_(type) \ + typename ::RAPIDJSON_NAMESPACE::internal::RemoveSfinaeTag \ + < ::RAPIDJSON_NAMESPACE::internal::SfinaeTag&(*) type>::Type + +#define RAPIDJSON_ENABLEIF(cond) \ + typename ::RAPIDJSON_NAMESPACE::internal::EnableIf \ + <RAPIDJSON_REMOVEFPTR_(cond)>::Type * = NULL + +#define RAPIDJSON_DISABLEIF(cond) \ + typename ::RAPIDJSON_NAMESPACE::internal::DisableIf \ + <RAPIDJSON_REMOVEFPTR_(cond)>::Type * = NULL + +#define RAPIDJSON_ENABLEIF_RETURN(cond,returntype) \ + typename ::RAPIDJSON_NAMESPACE::internal::EnableIf \ + <RAPIDJSON_REMOVEFPTR_(cond), \ + RAPIDJSON_REMOVEFPTR_(returntype)>::Type + +#define RAPIDJSON_DISABLEIF_RETURN(cond,returntype) \ + typename ::RAPIDJSON_NAMESPACE::internal::DisableIf \ + <RAPIDJSON_REMOVEFPTR_(cond), \ + RAPIDJSON_REMOVEFPTR_(returntype)>::Type + +} // namespace internal +RAPIDJSON_NAMESPACE_END +//@endcond + +#if defined(_MSC_VER) && !defined(__clang__) +RAPIDJSON_DIAG_POP +#endif + +#ifdef __GNUC__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_INTERNAL_META_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_pow10.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_pow10.h new file mode 100644 index 00000000..18fae6fb --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_pow10.h @@ -0,0 +1,55 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_POW10_ +#define RAPIDJSON_POW10_ + +#include "lottie_rapidjson_rapidjson.h" + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +//! Computes integer powers of 10 in double (10.0^n). +/*! This function uses lookup table for fast and accurate results. + \param n non-negative exponent. Must <= 308. + \return 10.0^n +*/ +inline double Pow10(int n) { + static const double e[] = { // 1e-0...1e308: 309 * 8 bytes = 2472 bytes + 1e+0, + 1e+1, 1e+2, 1e+3, 1e+4, 1e+5, 1e+6, 1e+7, 1e+8, 1e+9, 1e+10, 1e+11, 1e+12, 1e+13, 1e+14, 1e+15, 1e+16, 1e+17, 1e+18, 1e+19, 1e+20, + 1e+21, 1e+22, 1e+23, 1e+24, 1e+25, 1e+26, 1e+27, 1e+28, 1e+29, 1e+30, 1e+31, 1e+32, 1e+33, 1e+34, 1e+35, 1e+36, 1e+37, 1e+38, 1e+39, 1e+40, + 1e+41, 1e+42, 1e+43, 1e+44, 1e+45, 1e+46, 1e+47, 1e+48, 1e+49, 1e+50, 1e+51, 1e+52, 1e+53, 1e+54, 1e+55, 1e+56, 1e+57, 1e+58, 1e+59, 1e+60, + 1e+61, 1e+62, 1e+63, 1e+64, 1e+65, 1e+66, 1e+67, 1e+68, 1e+69, 1e+70, 1e+71, 1e+72, 1e+73, 1e+74, 1e+75, 1e+76, 1e+77, 1e+78, 1e+79, 1e+80, + 1e+81, 1e+82, 1e+83, 1e+84, 1e+85, 1e+86, 1e+87, 1e+88, 1e+89, 1e+90, 1e+91, 1e+92, 1e+93, 1e+94, 1e+95, 1e+96, 1e+97, 1e+98, 1e+99, 1e+100, + 1e+101,1e+102,1e+103,1e+104,1e+105,1e+106,1e+107,1e+108,1e+109,1e+110,1e+111,1e+112,1e+113,1e+114,1e+115,1e+116,1e+117,1e+118,1e+119,1e+120, + 1e+121,1e+122,1e+123,1e+124,1e+125,1e+126,1e+127,1e+128,1e+129,1e+130,1e+131,1e+132,1e+133,1e+134,1e+135,1e+136,1e+137,1e+138,1e+139,1e+140, + 1e+141,1e+142,1e+143,1e+144,1e+145,1e+146,1e+147,1e+148,1e+149,1e+150,1e+151,1e+152,1e+153,1e+154,1e+155,1e+156,1e+157,1e+158,1e+159,1e+160, + 1e+161,1e+162,1e+163,1e+164,1e+165,1e+166,1e+167,1e+168,1e+169,1e+170,1e+171,1e+172,1e+173,1e+174,1e+175,1e+176,1e+177,1e+178,1e+179,1e+180, + 1e+181,1e+182,1e+183,1e+184,1e+185,1e+186,1e+187,1e+188,1e+189,1e+190,1e+191,1e+192,1e+193,1e+194,1e+195,1e+196,1e+197,1e+198,1e+199,1e+200, + 1e+201,1e+202,1e+203,1e+204,1e+205,1e+206,1e+207,1e+208,1e+209,1e+210,1e+211,1e+212,1e+213,1e+214,1e+215,1e+216,1e+217,1e+218,1e+219,1e+220, + 1e+221,1e+222,1e+223,1e+224,1e+225,1e+226,1e+227,1e+228,1e+229,1e+230,1e+231,1e+232,1e+233,1e+234,1e+235,1e+236,1e+237,1e+238,1e+239,1e+240, + 1e+241,1e+242,1e+243,1e+244,1e+245,1e+246,1e+247,1e+248,1e+249,1e+250,1e+251,1e+252,1e+253,1e+254,1e+255,1e+256,1e+257,1e+258,1e+259,1e+260, + 1e+261,1e+262,1e+263,1e+264,1e+265,1e+266,1e+267,1e+268,1e+269,1e+270,1e+271,1e+272,1e+273,1e+274,1e+275,1e+276,1e+277,1e+278,1e+279,1e+280, + 1e+281,1e+282,1e+283,1e+284,1e+285,1e+286,1e+287,1e+288,1e+289,1e+290,1e+291,1e+292,1e+293,1e+294,1e+295,1e+296,1e+297,1e+298,1e+299,1e+300, + 1e+301,1e+302,1e+303,1e+304,1e+305,1e+306,1e+307,1e+308 + }; + RAPIDJSON_ASSERT(n >= 0 && n <= 308); + return e[n]; +} + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_POW10_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_regex.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_regex.h new file mode 100644 index 00000000..422971b4 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_regex.h @@ -0,0 +1,739 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_INTERNAL_REGEX_H_ +#define RAPIDJSON_INTERNAL_REGEX_H_ + +#include "lottie_rapidjson_allocators.h" +#include "lottie_rapidjson_stream.h" +#include "lottie_rapidjson_internal_stack.h" + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(padded) +RAPIDJSON_DIAG_OFF(switch-enum) +#elif defined(_MSC_VER) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated +#endif + +#ifdef __GNUC__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +#endif + +#ifndef RAPIDJSON_REGEX_VERBOSE +#define RAPIDJSON_REGEX_VERBOSE 0 +#endif + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +/////////////////////////////////////////////////////////////////////////////// +// DecodedStream + +template <typename SourceStream, typename Encoding> +class DecodedStream { +public: + DecodedStream(SourceStream& ss) : ss_(ss), codepoint_() { Decode(); } + unsigned Peek() { return codepoint_; } + unsigned Take() { + unsigned c = codepoint_; + if (c) // No further decoding when '\0' + Decode(); + return c; + } + +private: + void Decode() { + if (!Encoding::Decode(ss_, &codepoint_)) + codepoint_ = 0; + } + + SourceStream& ss_; + unsigned codepoint_; +}; + +/////////////////////////////////////////////////////////////////////////////// +// GenericRegex + +static const SizeType kRegexInvalidState = ~SizeType(0); //!< Represents an invalid index in GenericRegex::State::out, out1 +static const SizeType kRegexInvalidRange = ~SizeType(0); + +template <typename Encoding, typename Allocator> +class GenericRegexSearch; + +//! Regular expression engine with subset of ECMAscript grammar. +/*! + Supported regular expression syntax: + - \c ab Concatenation + - \c a|b Alternation + - \c a? Zero or one + - \c a* Zero or more + - \c a+ One or more + - \c a{3} Exactly 3 times + - \c a{3,} At least 3 times + - \c a{3,5} 3 to 5 times + - \c (ab) Grouping + - \c ^a At the beginning + - \c a$ At the end + - \c . Any character + - \c [abc] Character classes + - \c [a-c] Character class range + - \c [a-z0-9_] Character class combination + - \c [^abc] Negated character classes + - \c [^a-c] Negated character class range + - \c [\b] Backspace (U+0008) + - \c \\| \\\\ ... Escape characters + - \c \\f Form feed (U+000C) + - \c \\n Line feed (U+000A) + - \c \\r Carriage return (U+000D) + - \c \\t Tab (U+0009) + - \c \\v Vertical tab (U+000B) + + \note This is a Thompson NFA engine, implemented with reference to + Cox, Russ. "Regular Expression Matching Can Be Simple And Fast (but is slow in Java, Perl, PHP, Python, Ruby,...).", + https://swtch.com/~rsc/regexp/regexp1.html +*/ +template <typename Encoding, typename Allocator = CrtAllocator> +class GenericRegex { +public: + typedef Encoding EncodingType; + typedef typename Encoding::Ch Ch; + template <typename, typename> friend class GenericRegexSearch; + + GenericRegex(const Ch* source, Allocator* allocator = 0) : + ownAllocator_(allocator ? 0 : RAPIDJSON_NEW(Allocator)()), allocator_(allocator ? allocator : ownAllocator_), + states_(allocator_, 256), ranges_(allocator_, 256), root_(kRegexInvalidState), stateCount_(), rangeCount_(), + anchorBegin_(), anchorEnd_() + { + GenericStringStream<Encoding> ss(source); + DecodedStream<GenericStringStream<Encoding>, Encoding> ds(ss); + Parse(ds); + } + + ~GenericRegex() + { + RAPIDJSON_DELETE(ownAllocator_); + } + + bool IsValid() const { + return root_ != kRegexInvalidState; + } + +private: + enum Operator { + kZeroOrOne, + kZeroOrMore, + kOneOrMore, + kConcatenation, + kAlternation, + kLeftParenthesis + }; + + static const unsigned kAnyCharacterClass = 0xFFFFFFFF; //!< For '.' + static const unsigned kRangeCharacterClass = 0xFFFFFFFE; + static const unsigned kRangeNegationFlag = 0x80000000; + + struct Range { + unsigned start; // + unsigned end; + SizeType next; + }; + + struct State { + SizeType out; //!< Equals to kInvalid for matching state + SizeType out1; //!< Equals to non-kInvalid for split + SizeType rangeStart; + unsigned codepoint; + }; + + struct Frag { + Frag(SizeType s, SizeType o, SizeType m) : start(s), out(o), minIndex(m) {} + SizeType start; + SizeType out; //!< link-list of all output states + SizeType minIndex; + }; + + State& GetState(SizeType index) { + RAPIDJSON_ASSERT(index < stateCount_); + return states_.template Bottom<State>()[index]; + } + + const State& GetState(SizeType index) const { + RAPIDJSON_ASSERT(index < stateCount_); + return states_.template Bottom<State>()[index]; + } + + Range& GetRange(SizeType index) { + RAPIDJSON_ASSERT(index < rangeCount_); + return ranges_.template Bottom<Range>()[index]; + } + + const Range& GetRange(SizeType index) const { + RAPIDJSON_ASSERT(index < rangeCount_); + return ranges_.template Bottom<Range>()[index]; + } + + template <typename InputStream> + void Parse(DecodedStream<InputStream, Encoding>& ds) { + Stack<Allocator> operandStack(allocator_, 256); // Frag + Stack<Allocator> operatorStack(allocator_, 256); // Operator + Stack<Allocator> atomCountStack(allocator_, 256); // unsigned (Atom per parenthesis) + + *atomCountStack.template Push<unsigned>() = 0; + + unsigned codepoint; + while (ds.Peek() != 0) { + switch (codepoint = ds.Take()) { + case '^': + anchorBegin_ = true; + break; + + case '$': + anchorEnd_ = true; + break; + + case '|': + while (!operatorStack.Empty() && *operatorStack.template Top<Operator>() < kAlternation) + if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1))) + return; + *operatorStack.template Push<Operator>() = kAlternation; + *atomCountStack.template Top<unsigned>() = 0; + break; + + case '(': + *operatorStack.template Push<Operator>() = kLeftParenthesis; + *atomCountStack.template Push<unsigned>() = 0; + break; + + case ')': + while (!operatorStack.Empty() && *operatorStack.template Top<Operator>() != kLeftParenthesis) + if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1))) + return; + if (operatorStack.Empty()) + return; + operatorStack.template Pop<Operator>(1); + atomCountStack.template Pop<unsigned>(1); + ImplicitConcatenation(atomCountStack, operatorStack); + break; + + case '?': + if (!Eval(operandStack, kZeroOrOne)) + return; + break; + + case '*': + if (!Eval(operandStack, kZeroOrMore)) + return; + break; + + case '+': + if (!Eval(operandStack, kOneOrMore)) + return; + break; + + case '{': + { + unsigned n, m; + if (!ParseUnsigned(ds, &n)) + return; + + if (ds.Peek() == ',') { + ds.Take(); + if (ds.Peek() == '}') + m = kInfinityQuantifier; + else if (!ParseUnsigned(ds, &m) || m < n) + return; + } + else + m = n; + + if (!EvalQuantifier(operandStack, n, m) || ds.Peek() != '}') + return; + ds.Take(); + } + break; + + case '.': + PushOperand(operandStack, kAnyCharacterClass); + ImplicitConcatenation(atomCountStack, operatorStack); + break; + + case '[': + { + SizeType range; + if (!ParseRange(ds, &range)) + return; + SizeType s = NewState(kRegexInvalidState, kRegexInvalidState, kRangeCharacterClass); + GetState(s).rangeStart = range; + *operandStack.template Push<Frag>() = Frag(s, s, s); + } + ImplicitConcatenation(atomCountStack, operatorStack); + break; + + case '\\': // Escape character + if (!CharacterEscape(ds, &codepoint)) + return; // Unsupported escape character + // fall through to default + RAPIDJSON_DELIBERATE_FALLTHROUGH; + + default: // Pattern character + PushOperand(operandStack, codepoint); + ImplicitConcatenation(atomCountStack, operatorStack); + } + } + + while (!operatorStack.Empty()) + if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1))) + return; + + // Link the operand to matching state. + if (operandStack.GetSize() == sizeof(Frag)) { + Frag* e = operandStack.template Pop<Frag>(1); + Patch(e->out, NewState(kRegexInvalidState, kRegexInvalidState, 0)); + root_ = e->start; + +#if RAPIDJSON_REGEX_VERBOSE + printf("root: %d\n", root_); + for (SizeType i = 0; i < stateCount_ ; i++) { + State& s = GetState(i); + printf("[%2d] out: %2d out1: %2d c: '%c'\n", i, s.out, s.out1, (char)s.codepoint); + } + printf("\n"); +#endif + } + } + + SizeType NewState(SizeType out, SizeType out1, unsigned codepoint) { + State* s = states_.template Push<State>(); + s->out = out; + s->out1 = out1; + s->codepoint = codepoint; + s->rangeStart = kRegexInvalidRange; + return stateCount_++; + } + + void PushOperand(Stack<Allocator>& operandStack, unsigned codepoint) { + SizeType s = NewState(kRegexInvalidState, kRegexInvalidState, codepoint); + *operandStack.template Push<Frag>() = Frag(s, s, s); + } + + void ImplicitConcatenation(Stack<Allocator>& atomCountStack, Stack<Allocator>& operatorStack) { + if (*atomCountStack.template Top<unsigned>()) + *operatorStack.template Push<Operator>() = kConcatenation; + (*atomCountStack.template Top<unsigned>())++; + } + + SizeType Append(SizeType l1, SizeType l2) { + SizeType old = l1; + while (GetState(l1).out != kRegexInvalidState) + l1 = GetState(l1).out; + GetState(l1).out = l2; + return old; + } + + void Patch(SizeType l, SizeType s) { + for (SizeType next; l != kRegexInvalidState; l = next) { + next = GetState(l).out; + GetState(l).out = s; + } + } + + bool Eval(Stack<Allocator>& operandStack, Operator op) { + switch (op) { + case kConcatenation: + RAPIDJSON_ASSERT(operandStack.GetSize() >= sizeof(Frag) * 2); + { + Frag e2 = *operandStack.template Pop<Frag>(1); + Frag e1 = *operandStack.template Pop<Frag>(1); + Patch(e1.out, e2.start); + *operandStack.template Push<Frag>() = Frag(e1.start, e2.out, Min(e1.minIndex, e2.minIndex)); + } + return true; + + case kAlternation: + if (operandStack.GetSize() >= sizeof(Frag) * 2) { + Frag e2 = *operandStack.template Pop<Frag>(1); + Frag e1 = *operandStack.template Pop<Frag>(1); + SizeType s = NewState(e1.start, e2.start, 0); + *operandStack.template Push<Frag>() = Frag(s, Append(e1.out, e2.out), Min(e1.minIndex, e2.minIndex)); + return true; + } + return false; + + case kZeroOrOne: + if (operandStack.GetSize() >= sizeof(Frag)) { + Frag e = *operandStack.template Pop<Frag>(1); + SizeType s = NewState(kRegexInvalidState, e.start, 0); + *operandStack.template Push<Frag>() = Frag(s, Append(e.out, s), e.minIndex); + return true; + } + return false; + + case kZeroOrMore: + if (operandStack.GetSize() >= sizeof(Frag)) { + Frag e = *operandStack.template Pop<Frag>(1); + SizeType s = NewState(kRegexInvalidState, e.start, 0); + Patch(e.out, s); + *operandStack.template Push<Frag>() = Frag(s, s, e.minIndex); + return true; + } + return false; + + case kOneOrMore: + if (operandStack.GetSize() >= sizeof(Frag)) { + Frag e = *operandStack.template Pop<Frag>(1); + SizeType s = NewState(kRegexInvalidState, e.start, 0); + Patch(e.out, s); + *operandStack.template Push<Frag>() = Frag(e.start, s, e.minIndex); + return true; + } + return false; + + default: + // syntax error (e.g. unclosed kLeftParenthesis) + return false; + } + } + + bool EvalQuantifier(Stack<Allocator>& operandStack, unsigned n, unsigned m) { + RAPIDJSON_ASSERT(n <= m); + RAPIDJSON_ASSERT(operandStack.GetSize() >= sizeof(Frag)); + + if (n == 0) { + if (m == 0) // a{0} not support + return false; + else if (m == kInfinityQuantifier) + Eval(operandStack, kZeroOrMore); // a{0,} -> a* + else { + Eval(operandStack, kZeroOrOne); // a{0,5} -> a? + for (unsigned i = 0; i < m - 1; i++) + CloneTopOperand(operandStack); // a{0,5} -> a? a? a? a? a? + for (unsigned i = 0; i < m - 1; i++) + Eval(operandStack, kConcatenation); // a{0,5} -> a?a?a?a?a? + } + return true; + } + + for (unsigned i = 0; i < n - 1; i++) // a{3} -> a a a + CloneTopOperand(operandStack); + + if (m == kInfinityQuantifier) + Eval(operandStack, kOneOrMore); // a{3,} -> a a a+ + else if (m > n) { + CloneTopOperand(operandStack); // a{3,5} -> a a a a + Eval(operandStack, kZeroOrOne); // a{3,5} -> a a a a? + for (unsigned i = n; i < m - 1; i++) + CloneTopOperand(operandStack); // a{3,5} -> a a a a? a? + for (unsigned i = n; i < m; i++) + Eval(operandStack, kConcatenation); // a{3,5} -> a a aa?a? + } + + for (unsigned i = 0; i < n - 1; i++) + Eval(operandStack, kConcatenation); // a{3} -> aaa, a{3,} -> aaa+, a{3.5} -> aaaa?a? + + return true; + } + + static SizeType Min(SizeType a, SizeType b) { return a < b ? a : b; } + + void CloneTopOperand(Stack<Allocator>& operandStack) { + const Frag src = *operandStack.template Top<Frag>(); // Copy constructor to prevent invalidation + SizeType count = stateCount_ - src.minIndex; // Assumes top operand contains states in [src->minIndex, stateCount_) + State* s = states_.template Push<State>(count); + memcpy(s, &GetState(src.minIndex), count * sizeof(State)); + for (SizeType j = 0; j < count; j++) { + if (s[j].out != kRegexInvalidState) + s[j].out += count; + if (s[j].out1 != kRegexInvalidState) + s[j].out1 += count; + } + *operandStack.template Push<Frag>() = Frag(src.start + count, src.out + count, src.minIndex + count); + stateCount_ += count; + } + + template <typename InputStream> + bool ParseUnsigned(DecodedStream<InputStream, Encoding>& ds, unsigned* u) { + unsigned r = 0; + if (ds.Peek() < '0' || ds.Peek() > '9') + return false; + while (ds.Peek() >= '0' && ds.Peek() <= '9') { + if (r >= 429496729 && ds.Peek() > '5') // 2^32 - 1 = 4294967295 + return false; // overflow + r = r * 10 + (ds.Take() - '0'); + } + *u = r; + return true; + } + + template <typename InputStream> + bool ParseRange(DecodedStream<InputStream, Encoding>& ds, SizeType* range) { + bool isBegin = true; + bool negate = false; + int step = 0; + SizeType start = kRegexInvalidRange; + SizeType current = kRegexInvalidRange; + unsigned codepoint; + while ((codepoint = ds.Take()) != 0) { + if (isBegin) { + isBegin = false; + if (codepoint == '^') { + negate = true; + continue; + } + } + + switch (codepoint) { + case ']': + if (start == kRegexInvalidRange) + return false; // Error: nothing inside [] + if (step == 2) { // Add trailing '-' + SizeType r = NewRange('-'); + RAPIDJSON_ASSERT(current != kRegexInvalidRange); + GetRange(current).next = r; + } + if (negate) + GetRange(start).start |= kRangeNegationFlag; + *range = start; + return true; + + case '\\': + if (ds.Peek() == 'b') { + ds.Take(); + codepoint = 0x0008; // Escape backspace character + } + else if (!CharacterEscape(ds, &codepoint)) + return false; + // fall through to default + RAPIDJSON_DELIBERATE_FALLTHROUGH; + + default: + switch (step) { + case 1: + if (codepoint == '-') { + step++; + break; + } + // fall through to step 0 for other characters + RAPIDJSON_DELIBERATE_FALLTHROUGH; + + case 0: + { + SizeType r = NewRange(codepoint); + if (current != kRegexInvalidRange) + GetRange(current).next = r; + if (start == kRegexInvalidRange) + start = r; + current = r; + } + step = 1; + break; + + default: + RAPIDJSON_ASSERT(step == 2); + GetRange(current).end = codepoint; + step = 0; + } + } + } + return false; + } + + SizeType NewRange(unsigned codepoint) { + Range* r = ranges_.template Push<Range>(); + r->start = r->end = codepoint; + r->next = kRegexInvalidRange; + return rangeCount_++; + } + + template <typename InputStream> + bool CharacterEscape(DecodedStream<InputStream, Encoding>& ds, unsigned* escapedCodepoint) { + unsigned codepoint; + switch (codepoint = ds.Take()) { + case '^': + case '$': + case '|': + case '(': + case ')': + case '?': + case '*': + case '+': + case '.': + case '[': + case ']': + case '{': + case '}': + case '\\': + *escapedCodepoint = codepoint; return true; + case 'f': *escapedCodepoint = 0x000C; return true; + case 'n': *escapedCodepoint = 0x000A; return true; + case 'r': *escapedCodepoint = 0x000D; return true; + case 't': *escapedCodepoint = 0x0009; return true; + case 'v': *escapedCodepoint = 0x000B; return true; + default: + return false; // Unsupported escape character + } + } + + Allocator* ownAllocator_; + Allocator* allocator_; + Stack<Allocator> states_; + Stack<Allocator> ranges_; + SizeType root_; + SizeType stateCount_; + SizeType rangeCount_; + + static const unsigned kInfinityQuantifier = ~0u; + + // For SearchWithAnchoring() + bool anchorBegin_; + bool anchorEnd_; +}; + +template <typename RegexType, typename Allocator = CrtAllocator> +class GenericRegexSearch { +public: + typedef typename RegexType::EncodingType Encoding; + typedef typename Encoding::Ch Ch; + + GenericRegexSearch(const RegexType& regex, Allocator* allocator = 0) : + regex_(regex), allocator_(allocator), ownAllocator_(0), + state0_(allocator, 0), state1_(allocator, 0), stateSet_() + { + RAPIDJSON_ASSERT(regex_.IsValid()); + if (!allocator_) + ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)(); + stateSet_ = static_cast<unsigned*>(allocator_->Malloc(GetStateSetSize())); + state0_.template Reserve<SizeType>(regex_.stateCount_); + state1_.template Reserve<SizeType>(regex_.stateCount_); + } + + ~GenericRegexSearch() { + Allocator::Free(stateSet_); + RAPIDJSON_DELETE(ownAllocator_); + } + + template <typename InputStream> + bool Match(InputStream& is) { + return SearchWithAnchoring(is, true, true); + } + + bool Match(const Ch* s) { + GenericStringStream<Encoding> is(s); + return Match(is); + } + + template <typename InputStream> + bool Search(InputStream& is) { + return SearchWithAnchoring(is, regex_.anchorBegin_, regex_.anchorEnd_); + } + + bool Search(const Ch* s) { + GenericStringStream<Encoding> is(s); + return Search(is); + } + +private: + typedef typename RegexType::State State; + typedef typename RegexType::Range Range; + + template <typename InputStream> + bool SearchWithAnchoring(InputStream& is, bool anchorBegin, bool anchorEnd) { + DecodedStream<InputStream, Encoding> ds(is); + + state0_.Clear(); + Stack<Allocator> *current = &state0_, *next = &state1_; + const size_t stateSetSize = GetStateSetSize(); + std::memset(stateSet_, 0, stateSetSize); + + bool matched = AddState(*current, regex_.root_); + unsigned codepoint; + while (!current->Empty() && (codepoint = ds.Take()) != 0) { + std::memset(stateSet_, 0, stateSetSize); + next->Clear(); + matched = false; + for (const SizeType* s = current->template Bottom<SizeType>(); s != current->template End<SizeType>(); ++s) { + const State& sr = regex_.GetState(*s); + if (sr.codepoint == codepoint || + sr.codepoint == RegexType::kAnyCharacterClass || + (sr.codepoint == RegexType::kRangeCharacterClass && MatchRange(sr.rangeStart, codepoint))) + { + matched = AddState(*next, sr.out) || matched; + if (!anchorEnd && matched) + return true; + } + if (!anchorBegin) + AddState(*next, regex_.root_); + } + internal::Swap(current, next); + } + + return matched; + } + + size_t GetStateSetSize() const { + return (regex_.stateCount_ + 31) / 32 * 4; + } + + // Return whether the added states is a match state + bool AddState(Stack<Allocator>& l, SizeType index) { + RAPIDJSON_ASSERT(index != kRegexInvalidState); + + const State& s = regex_.GetState(index); + if (s.out1 != kRegexInvalidState) { // Split + bool matched = AddState(l, s.out); + return AddState(l, s.out1) || matched; + } + else if (!(stateSet_[index >> 5] & (1u << (index & 31)))) { + stateSet_[index >> 5] |= (1u << (index & 31)); + *l.template PushUnsafe<SizeType>() = index; + } + return s.out == kRegexInvalidState; // by using PushUnsafe() above, we can ensure s is not validated due to reallocation. + } + + bool MatchRange(SizeType rangeIndex, unsigned codepoint) const { + bool yes = (regex_.GetRange(rangeIndex).start & RegexType::kRangeNegationFlag) == 0; + while (rangeIndex != kRegexInvalidRange) { + const Range& r = regex_.GetRange(rangeIndex); + if (codepoint >= (r.start & ~RegexType::kRangeNegationFlag) && codepoint <= r.end) + return yes; + rangeIndex = r.next; + } + return !yes; + } + + const RegexType& regex_; + Allocator* allocator_; + Allocator* ownAllocator_; + Stack<Allocator> state0_; + Stack<Allocator> state1_; + uint32_t* stateSet_; +}; + +typedef GenericRegex<UTF8<> > Regex; +typedef GenericRegexSearch<Regex> RegexSearch; + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#ifdef __GNUC__ +RAPIDJSON_DIAG_POP +#endif + +#if defined(__clang__) || defined(_MSC_VER) +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_INTERNAL_REGEX_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_stack.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_stack.h new file mode 100644 index 00000000..173e0fec --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_stack.h @@ -0,0 +1,232 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_INTERNAL_STACK_H_ +#define RAPIDJSON_INTERNAL_STACK_H_ + +#include "lottie_rapidjson_allocators.h" +#include "lottie_rapidjson_internal_swap.h" +#include <cstddef> + +#if defined(__clang__) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(c++98-compat) +#endif + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +/////////////////////////////////////////////////////////////////////////////// +// Stack + +//! A type-unsafe stack for storing different types of data. +/*! \tparam Allocator Allocator for allocating stack memory. +*/ +template <typename Allocator> +class Stack { +public: + // Optimization note: Do not allocate memory for stack_ in constructor. + // Do it lazily when first Push() -> Expand() -> Resize(). + Stack(Allocator* allocator, size_t stackCapacity) : allocator_(allocator), ownAllocator_(0), stack_(0), stackTop_(0), stackEnd_(0), initialCapacity_(stackCapacity) { + } + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + Stack(Stack&& rhs) + : allocator_(rhs.allocator_), + ownAllocator_(rhs.ownAllocator_), + stack_(rhs.stack_), + stackTop_(rhs.stackTop_), + stackEnd_(rhs.stackEnd_), + initialCapacity_(rhs.initialCapacity_) + { + rhs.allocator_ = 0; + rhs.ownAllocator_ = 0; + rhs.stack_ = 0; + rhs.stackTop_ = 0; + rhs.stackEnd_ = 0; + rhs.initialCapacity_ = 0; + } +#endif + + ~Stack() { + Destroy(); + } + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + Stack& operator=(Stack&& rhs) { + if (&rhs != this) + { + Destroy(); + + allocator_ = rhs.allocator_; + ownAllocator_ = rhs.ownAllocator_; + stack_ = rhs.stack_; + stackTop_ = rhs.stackTop_; + stackEnd_ = rhs.stackEnd_; + initialCapacity_ = rhs.initialCapacity_; + + rhs.allocator_ = 0; + rhs.ownAllocator_ = 0; + rhs.stack_ = 0; + rhs.stackTop_ = 0; + rhs.stackEnd_ = 0; + rhs.initialCapacity_ = 0; + } + return *this; + } +#endif + + void Swap(Stack& rhs) RAPIDJSON_NOEXCEPT { + internal::Swap(allocator_, rhs.allocator_); + internal::Swap(ownAllocator_, rhs.ownAllocator_); + internal::Swap(stack_, rhs.stack_); + internal::Swap(stackTop_, rhs.stackTop_); + internal::Swap(stackEnd_, rhs.stackEnd_); + internal::Swap(initialCapacity_, rhs.initialCapacity_); + } + + void Clear() { stackTop_ = stack_; } + + void ShrinkToFit() { + if (Empty()) { + // If the stack is empty, completely deallocate the memory. + Allocator::Free(stack_); // NOLINT (+clang-analyzer-unix.Malloc) + stack_ = 0; + stackTop_ = 0; + stackEnd_ = 0; + } + else + Resize(GetSize()); + } + + // Optimization note: try to minimize the size of this function for force inline. + // Expansion is run very infrequently, so it is moved to another (probably non-inline) function. + template<typename T> + RAPIDJSON_FORCEINLINE void Reserve(size_t count = 1) { + // Expand the stack if needed + if (RAPIDJSON_UNLIKELY(static_cast<std::ptrdiff_t>(sizeof(T) * count) > (stackEnd_ - stackTop_))) + Expand<T>(count); + } + + template<typename T> + RAPIDJSON_FORCEINLINE T* Push(size_t count = 1) { + Reserve<T>(count); + return PushUnsafe<T>(count); + } + + template<typename T> + RAPIDJSON_FORCEINLINE T* PushUnsafe(size_t count = 1) { + RAPIDJSON_ASSERT(stackTop_); + RAPIDJSON_ASSERT(static_cast<std::ptrdiff_t>(sizeof(T) * count) <= (stackEnd_ - stackTop_)); + T* ret = reinterpret_cast<T*>(stackTop_); + stackTop_ += sizeof(T) * count; + return ret; + } + + template<typename T> + T* Pop(size_t count) { + RAPIDJSON_ASSERT(GetSize() >= count * sizeof(T)); + stackTop_ -= count * sizeof(T); + return reinterpret_cast<T*>(stackTop_); + } + + template<typename T> + T* Top() { + RAPIDJSON_ASSERT(GetSize() >= sizeof(T)); + return reinterpret_cast<T*>(stackTop_ - sizeof(T)); + } + + template<typename T> + const T* Top() const { + RAPIDJSON_ASSERT(GetSize() >= sizeof(T)); + return reinterpret_cast<T*>(stackTop_ - sizeof(T)); + } + + template<typename T> + T* End() { return reinterpret_cast<T*>(stackTop_); } + + template<typename T> + const T* End() const { return reinterpret_cast<T*>(stackTop_); } + + template<typename T> + T* Bottom() { return reinterpret_cast<T*>(stack_); } + + template<typename T> + const T* Bottom() const { return reinterpret_cast<T*>(stack_); } + + bool HasAllocator() const { + return allocator_ != 0; + } + + Allocator& GetAllocator() { + RAPIDJSON_ASSERT(allocator_); + return *allocator_; + } + + bool Empty() const { return stackTop_ == stack_; } + size_t GetSize() const { return static_cast<size_t>(stackTop_ - stack_); } + size_t GetCapacity() const { return static_cast<size_t>(stackEnd_ - stack_); } + +private: + template<typename T> + void Expand(size_t count) { + // Only expand the capacity if the current stack exists. Otherwise just create a stack with initial capacity. + size_t newCapacity; + if (stack_ == 0) { + if (!allocator_) + ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)(); + newCapacity = initialCapacity_; + } else { + newCapacity = GetCapacity(); + newCapacity += (newCapacity + 1) / 2; + } + size_t newSize = GetSize() + sizeof(T) * count; + if (newCapacity < newSize) + newCapacity = newSize; + + Resize(newCapacity); + } + + void Resize(size_t newCapacity) { + const size_t size = GetSize(); // Backup the current size + stack_ = static_cast<char*>(allocator_->Realloc(stack_, GetCapacity(), newCapacity)); + stackTop_ = stack_ + size; + stackEnd_ = stack_ + newCapacity; + } + + void Destroy() { + Allocator::Free(stack_); + RAPIDJSON_DELETE(ownAllocator_); // Only delete if it is owned by the stack + } + + // Prohibit copy constructor & assignment operator. + Stack(const Stack&); + Stack& operator=(const Stack&); + + Allocator* allocator_; + Allocator* ownAllocator_; + char *stack_; + char *stackTop_; + char *stackEnd_; + size_t initialCapacity_; +}; + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#if defined(__clang__) +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_STACK_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_strfunc.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_strfunc.h new file mode 100644 index 00000000..7fa0d81e --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_strfunc.h @@ -0,0 +1,69 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_INTERNAL_STRFUNC_H_ +#define RAPIDJSON_INTERNAL_STRFUNC_H_ + +#include "lottie_rapidjson_stream.h" +#include <cwchar> + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +//! Custom strlen() which works on different character types. +/*! \tparam Ch Character type (e.g. char, wchar_t, short) + \param s Null-terminated input string. + \return Number of characters in the string. + \note This has the same semantics as strlen(), the return value is not number of Unicode codepoints. +*/ +template <typename Ch> +inline SizeType StrLen(const Ch* s) { + RAPIDJSON_ASSERT(s != 0); + const Ch* p = s; + while (*p) ++p; + return SizeType(p - s); +} + +template <> +inline SizeType StrLen(const char* s) { + return SizeType(std::strlen(s)); +} + +template <> +inline SizeType StrLen(const wchar_t* s) { + return SizeType(std::wcslen(s)); +} + +//! Returns number of code points in a encoded string. +template<typename Encoding> +bool CountStringCodePoint(const typename Encoding::Ch* s, SizeType length, SizeType* outCount) { + RAPIDJSON_ASSERT(s != 0); + RAPIDJSON_ASSERT(outCount != 0); + GenericStringStream<Encoding> is(s); + const typename Encoding::Ch* end = s + length; + SizeType count = 0; + while (is.src_ < end) { + unsigned codepoint; + if (!Encoding::Decode(is, &codepoint)) + return false; + count++; + } + *outCount = count; + return true; +} + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_INTERNAL_STRFUNC_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_strtod.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_strtod.h new file mode 100644 index 00000000..fc1bc5d6 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_strtod.h @@ -0,0 +1,290 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_STRTOD_ +#define RAPIDJSON_STRTOD_ + +#include "lottie_rapidjson_internal_ieee754.h" +#include "lottie_rapidjson_internal_biginteger.h" +#include "lottie_rapidjson_internal_diyfp.h" +#include "lottie_rapidjson_internal_pow10.h" +#include <climits> +#include <limits> + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +inline double FastPath(double significand, int exp) { + if (exp < -308) + return 0.0; + else if (exp >= 0) + return significand * internal::Pow10(exp); + else + return significand / internal::Pow10(-exp); +} + +inline double StrtodNormalPrecision(double d, int p) { + if (p < -308) { + // Prevent expSum < -308, making Pow10(p) = 0 + d = FastPath(d, -308); + d = FastPath(d, p + 308); + } + else + d = FastPath(d, p); + return d; +} + +template <typename T> +inline T Min3(T a, T b, T c) { + T m = a; + if (m > b) m = b; + if (m > c) m = c; + return m; +} + +inline int CheckWithinHalfULP(double b, const BigInteger& d, int dExp) { + const Double db(b); + const uint64_t bInt = db.IntegerSignificand(); + const int bExp = db.IntegerExponent(); + const int hExp = bExp - 1; + + int dS_Exp2 = 0, dS_Exp5 = 0, bS_Exp2 = 0, bS_Exp5 = 0, hS_Exp2 = 0, hS_Exp5 = 0; + + // Adjust for decimal exponent + if (dExp >= 0) { + dS_Exp2 += dExp; + dS_Exp5 += dExp; + } + else { + bS_Exp2 -= dExp; + bS_Exp5 -= dExp; + hS_Exp2 -= dExp; + hS_Exp5 -= dExp; + } + + // Adjust for binary exponent + if (bExp >= 0) + bS_Exp2 += bExp; + else { + dS_Exp2 -= bExp; + hS_Exp2 -= bExp; + } + + // Adjust for half ulp exponent + if (hExp >= 0) + hS_Exp2 += hExp; + else { + dS_Exp2 -= hExp; + bS_Exp2 -= hExp; + } + + // Remove common power of two factor from all three scaled values + int common_Exp2 = Min3(dS_Exp2, bS_Exp2, hS_Exp2); + dS_Exp2 -= common_Exp2; + bS_Exp2 -= common_Exp2; + hS_Exp2 -= common_Exp2; + + BigInteger dS = d; + dS.MultiplyPow5(static_cast<unsigned>(dS_Exp5)) <<= static_cast<unsigned>(dS_Exp2); + + BigInteger bS(bInt); + bS.MultiplyPow5(static_cast<unsigned>(bS_Exp5)) <<= static_cast<unsigned>(bS_Exp2); + + BigInteger hS(1); + hS.MultiplyPow5(static_cast<unsigned>(hS_Exp5)) <<= static_cast<unsigned>(hS_Exp2); + + BigInteger delta(0); + dS.Difference(bS, &delta); + + return delta.Compare(hS); +} + +inline bool StrtodFast(double d, int p, double* result) { + // Use fast path for string-to-double conversion if possible + // see http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + if (p > 22 && p < 22 + 16) { + // Fast Path Cases In Disguise + d *= internal::Pow10(p - 22); + p = 22; + } + + if (p >= -22 && p <= 22 && d <= 9007199254740991.0) { // 2^53 - 1 + *result = FastPath(d, p); + return true; + } + else + return false; +} + +// Compute an approximation and see if it is within 1/2 ULP +inline bool StrtodDiyFp(const char* decimals, int dLen, int dExp, double* result) { + uint64_t significand = 0; + int i = 0; // 2^64 - 1 = 18446744073709551615, 1844674407370955161 = 0x1999999999999999 + for (; i < dLen; i++) { + if (significand > RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) || + (significand == RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) && decimals[i] > '5')) + break; + significand = significand * 10u + static_cast<unsigned>(decimals[i] - '0'); + } + + if (i < dLen && decimals[i] >= '5') // Rounding + significand++; + + int remaining = dLen - i; + const int kUlpShift = 3; + const int kUlp = 1 << kUlpShift; + int64_t error = (remaining == 0) ? 0 : kUlp / 2; + + DiyFp v(significand, 0); + v = v.Normalize(); + error <<= -v.e; + + dExp += remaining; + + int actualExp; + DiyFp cachedPower = GetCachedPower10(dExp, &actualExp); + if (actualExp != dExp) { + static const DiyFp kPow10[] = { + DiyFp(RAPIDJSON_UINT64_C2(0xa0000000, 0x00000000), -60), // 10^1 + DiyFp(RAPIDJSON_UINT64_C2(0xc8000000, 0x00000000), -57), // 10^2 + DiyFp(RAPIDJSON_UINT64_C2(0xfa000000, 0x00000000), -54), // 10^3 + DiyFp(RAPIDJSON_UINT64_C2(0x9c400000, 0x00000000), -50), // 10^4 + DiyFp(RAPIDJSON_UINT64_C2(0xc3500000, 0x00000000), -47), // 10^5 + DiyFp(RAPIDJSON_UINT64_C2(0xf4240000, 0x00000000), -44), // 10^6 + DiyFp(RAPIDJSON_UINT64_C2(0x98968000, 0x00000000), -40) // 10^7 + }; + int adjustment = dExp - actualExp; + RAPIDJSON_ASSERT(adjustment >= 1 && adjustment < 8); + v = v * kPow10[adjustment - 1]; + if (dLen + adjustment > 19) // has more digits than decimal digits in 64-bit + error += kUlp / 2; + } + + v = v * cachedPower; + + error += kUlp + (error == 0 ? 0 : 1); + + const int oldExp = v.e; + v = v.Normalize(); + error <<= oldExp - v.e; + + const int effectiveSignificandSize = Double::EffectiveSignificandSize(64 + v.e); + int precisionSize = 64 - effectiveSignificandSize; + if (precisionSize + kUlpShift >= 64) { + int scaleExp = (precisionSize + kUlpShift) - 63; + v.f >>= scaleExp; + v.e += scaleExp; + error = (error >> scaleExp) + 1 + kUlp; + precisionSize -= scaleExp; + } + + DiyFp rounded(v.f >> precisionSize, v.e + precisionSize); + const uint64_t precisionBits = (v.f & ((uint64_t(1) << precisionSize) - 1)) * kUlp; + const uint64_t halfWay = (uint64_t(1) << (precisionSize - 1)) * kUlp; + if (precisionBits >= halfWay + static_cast<unsigned>(error)) { + rounded.f++; + if (rounded.f & (DiyFp::kDpHiddenBit << 1)) { // rounding overflows mantissa (issue #340) + rounded.f >>= 1; + rounded.e++; + } + } + + *result = rounded.ToDouble(); + + return halfWay - static_cast<unsigned>(error) >= precisionBits || precisionBits >= halfWay + static_cast<unsigned>(error); +} + +inline double StrtodBigInteger(double approx, const char* decimals, int dLen, int dExp) { + RAPIDJSON_ASSERT(dLen >= 0); + const BigInteger dInt(decimals, static_cast<unsigned>(dLen)); + Double a(approx); + int cmp = CheckWithinHalfULP(a.Value(), dInt, dExp); + if (cmp < 0) + return a.Value(); // within half ULP + else if (cmp == 0) { + // Round towards even + if (a.Significand() & 1) + return a.NextPositiveDouble(); + else + return a.Value(); + } + else // adjustment + return a.NextPositiveDouble(); +} + +inline double StrtodFullPrecision(double d, int p, const char* decimals, size_t length, size_t decimalPosition, int exp) { + RAPIDJSON_ASSERT(d >= 0.0); + RAPIDJSON_ASSERT(length >= 1); + + double result = 0.0; + if (StrtodFast(d, p, &result)) + return result; + + RAPIDJSON_ASSERT(length <= INT_MAX); + int dLen = static_cast<int>(length); + + RAPIDJSON_ASSERT(length >= decimalPosition); + RAPIDJSON_ASSERT(length - decimalPosition <= INT_MAX); + int dExpAdjust = static_cast<int>(length - decimalPosition); + + RAPIDJSON_ASSERT(exp >= INT_MIN + dExpAdjust); + int dExp = exp - dExpAdjust; + + // Make sure length+dExp does not overflow + RAPIDJSON_ASSERT(dExp <= INT_MAX - dLen); + + // Trim leading zeros + while (dLen > 0 && *decimals == '0') { + dLen--; + decimals++; + } + + // Trim trailing zeros + while (dLen > 0 && decimals[dLen - 1] == '0') { + dLen--; + dExp++; + } + + if (dLen == 0) { // Buffer only contains zeros. + return 0.0; + } + + // Trim right-most digits + const int kMaxDecimalDigit = 767 + 1; + if (dLen > kMaxDecimalDigit) { + dExp += dLen - kMaxDecimalDigit; + dLen = kMaxDecimalDigit; + } + + // If too small, underflow to zero. + // Any x <= 10^-324 is interpreted as zero. + if (dLen + dExp <= -324) + return 0.0; + + // If too large, overflow to infinity. + // Any x >= 10^309 is interpreted as +infinity. + if (dLen + dExp > 309) + return std::numeric_limits<double>::infinity(); + + if (StrtodDiyFp(decimals, dLen, dExp, &result)) + return result; + + // Use approximation from StrtodDiyFp and make adjustment with BigInteger comparison + return StrtodBigInteger(result, decimals, dLen, dExp); +} + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_STRTOD_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_swap.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_swap.h new file mode 100644 index 00000000..816fe3cc --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_internal_swap.h @@ -0,0 +1,46 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_INTERNAL_SWAP_H_ +#define RAPIDJSON_INTERNAL_SWAP_H_ + +#include "lottie_rapidjson_rapidjson.h" + +#if defined(__clang__) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(c++98-compat) +#endif + +RAPIDJSON_NAMESPACE_BEGIN +namespace internal { + +//! Custom swap() to avoid dependency on C++ <algorithm> header +/*! \tparam T Type of the arguments to swap, should be instantiated with primitive C++ types only. + \note This has the same semantics as std::swap(). +*/ +template <typename T> +inline void Swap(T& a, T& b) RAPIDJSON_NOEXCEPT { + T tmp = a; + a = b; + b = tmp; +} + +} // namespace internal +RAPIDJSON_NAMESPACE_END + +#if defined(__clang__) +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_INTERNAL_SWAP_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_istreamwrapper.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_istreamwrapper.h new file mode 100644 index 00000000..47b279f9 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_istreamwrapper.h @@ -0,0 +1,128 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_ISTREAMWRAPPER_H_ +#define RAPIDJSON_ISTREAMWRAPPER_H_ + +#include "lottie_rapidjson_stream.h" +#include <iosfwd> +#include <ios> + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(padded) +#elif defined(_MSC_VER) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(4351) // new behavior: elements of array 'array' will be default initialized +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +//! Wrapper of \c std::basic_istream into RapidJSON's Stream concept. +/*! + The classes can be wrapped including but not limited to: + + - \c std::istringstream + - \c std::stringstream + - \c std::wistringstream + - \c std::wstringstream + - \c std::ifstream + - \c std::fstream + - \c std::wifstream + - \c std::wfstream + + \tparam StreamType Class derived from \c std::basic_istream. +*/ + +template <typename StreamType> +class BasicIStreamWrapper { +public: + typedef typename StreamType::char_type Ch; + + //! Constructor. + /*! + \param stream stream opened for read. + */ + BasicIStreamWrapper(StreamType &stream) : stream_(stream), buffer_(peekBuffer_), bufferSize_(4), bufferLast_(0), current_(buffer_), readCount_(0), count_(0), eof_(false) { + Read(); + } + + //! Constructor. + /*! + \param stream stream opened for read. + \param buffer user-supplied buffer. + \param bufferSize size of buffer in bytes. Must >=4 bytes. + */ + BasicIStreamWrapper(StreamType &stream, char* buffer, size_t bufferSize) : stream_(stream), buffer_(buffer), bufferSize_(bufferSize), bufferLast_(0), current_(buffer_), readCount_(0), count_(0), eof_(false) { + RAPIDJSON_ASSERT(bufferSize >= 4); + Read(); + } + + Ch Peek() const { return *current_; } + Ch Take() { Ch c = *current_; Read(); return c; } + size_t Tell() const { return count_ + static_cast<size_t>(current_ - buffer_); } + + // Not implemented + void Put(Ch) { RAPIDJSON_ASSERT(false); } + void Flush() { RAPIDJSON_ASSERT(false); } + Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } + + // For encoding detection only. + const Ch* Peek4() const { + return (current_ + 4 - !eof_ <= bufferLast_) ? current_ : 0; + } + +private: + BasicIStreamWrapper(); + BasicIStreamWrapper(const BasicIStreamWrapper&); + BasicIStreamWrapper& operator=(const BasicIStreamWrapper&); + + void Read() { + if (current_ < bufferLast_) + ++current_; + else if (!eof_) { + count_ += readCount_; + readCount_ = bufferSize_; + bufferLast_ = buffer_ + readCount_ - 1; + current_ = buffer_; + + if (!stream_.read(buffer_, static_cast<std::streamsize>(bufferSize_))) { + readCount_ = static_cast<size_t>(stream_.gcount()); + *(bufferLast_ = buffer_ + readCount_) = '\0'; + eof_ = true; + } + } + } + + StreamType &stream_; + Ch peekBuffer_[4], *buffer_; + size_t bufferSize_; + Ch *bufferLast_; + Ch *current_; + size_t readCount_; + size_t count_; //!< Number of characters read + bool eof_; +}; + +typedef BasicIStreamWrapper<std::istream> IStreamWrapper; +typedef BasicIStreamWrapper<std::wistream> WIStreamWrapper; + +#if defined(__clang__) || defined(_MSC_VER) +RAPIDJSON_DIAG_POP +#endif + +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_ISTREAMWRAPPER_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_memorybuffer.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_memorybuffer.h new file mode 100644 index 00000000..100a46fd --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_memorybuffer.h @@ -0,0 +1,70 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_MEMORYBUFFER_H_ +#define RAPIDJSON_MEMORYBUFFER_H_ + +#include "lottie_rapidjson_stream.h" +#include "lottie_rapidjson_internal_stack.h" + +RAPIDJSON_NAMESPACE_BEGIN + +//! Represents an in-memory output byte stream. +/*! + This class is mainly for being wrapped by EncodedOutputStream or AutoUTFOutputStream. + + It is similar to FileWriteBuffer but the destination is an in-memory buffer instead of a file. + + Differences between MemoryBuffer and StringBuffer: + 1. StringBuffer has Encoding but MemoryBuffer is only a byte buffer. + 2. StringBuffer::GetString() returns a null-terminated string. MemoryBuffer::GetBuffer() returns a buffer without terminator. + + \tparam Allocator type for allocating memory buffer. + \note implements Stream concept +*/ +template <typename Allocator = CrtAllocator> +struct GenericMemoryBuffer { + typedef char Ch; // byte + + GenericMemoryBuffer(Allocator* allocator = 0, size_t capacity = kDefaultCapacity) : stack_(allocator, capacity) {} + + void Put(Ch c) { *stack_.template Push<Ch>() = c; } + void Flush() {} + + void Clear() { stack_.Clear(); } + void ShrinkToFit() { stack_.ShrinkToFit(); } + Ch* Push(size_t count) { return stack_.template Push<Ch>(count); } + void Pop(size_t count) { stack_.template Pop<Ch>(count); } + + const Ch* GetBuffer() const { + return stack_.template Bottom<Ch>(); + } + + size_t GetSize() const { return stack_.GetSize(); } + + static const size_t kDefaultCapacity = 256; + mutable internal::Stack<Allocator> stack_; +}; + +typedef GenericMemoryBuffer<> MemoryBuffer; + +//! Implement specialized version of PutN() with memset() for better performance. +template<> +inline void PutN(MemoryBuffer& memoryBuffer, char c, size_t n) { + std::memset(memoryBuffer.stack_.Push<char>(n), c, n * sizeof(c)); +} + +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_MEMORYBUFFER_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_memorystream.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_memorystream.h new file mode 100644 index 00000000..933319e8 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_memorystream.h @@ -0,0 +1,71 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_MEMORYSTREAM_H_ +#define RAPIDJSON_MEMORYSTREAM_H_ + +#include "lottie_rapidjson_stream.h" + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(unreachable-code) +RAPIDJSON_DIAG_OFF(missing-noreturn) +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +//! Represents an in-memory input byte stream. +/*! + This class is mainly for being wrapped by EncodedInputStream or AutoUTFInputStream. + + It is similar to FileReadBuffer but the source is an in-memory buffer instead of a file. + + Differences between MemoryStream and StringStream: + 1. StringStream has encoding but MemoryStream is a byte stream. + 2. MemoryStream needs size of the source buffer and the buffer don't need to be null terminated. StringStream assume null-terminated string as source. + 3. MemoryStream supports Peek4() for encoding detection. StringStream is specified with an encoding so it should not have Peek4(). + \note implements Stream concept +*/ +struct MemoryStream { + typedef char Ch; // byte + + MemoryStream(const Ch *src, size_t size) : src_(src), begin_(src), end_(src + size), size_(size) {} + + Ch Peek() const { return RAPIDJSON_UNLIKELY(src_ == end_) ? '\0' : *src_; } + Ch Take() { return RAPIDJSON_UNLIKELY(src_ == end_) ? '\0' : *src_++; } + size_t Tell() const { return static_cast<size_t>(src_ - begin_); } + + Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + void Put(Ch) { RAPIDJSON_ASSERT(false); } + void Flush() { RAPIDJSON_ASSERT(false); } + size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } + + // For encoding detection only. + const Ch* Peek4() const { + return Tell() + 4 <= size_ ? src_ : 0; + } + + const Ch* src_; //!< Current read position. + const Ch* begin_; //!< Original head of the string. + const Ch* end_; //!< End of stream. + size_t size_; //!< Size of the stream. +}; + +RAPIDJSON_NAMESPACE_END + +#ifdef __clang__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_MEMORYBUFFER_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_msinttypes_inttypes.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_msinttypes_inttypes.h new file mode 100644 index 00000000..8db2e8e7 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_msinttypes_inttypes.h @@ -0,0 +1,316 @@ +// ISO C9x compliant inttypes.h for Microsoft Visual Studio +// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 +// +// Copyright (c) 2006-2013 Alexander Chemeris +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// 3. Neither the name of the product nor the names of its contributors may +// be used to endorse or promote products derived from this software +// without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO +// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; +// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF +// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +/////////////////////////////////////////////////////////////////////////////// + +// The above software in this distribution may have been modified by +// THL A29 Limited ("Tencent Modifications"). +// All Tencent Modifications are Copyright (C) 2015 THL A29 Limited. + +#ifndef _MSC_VER // [ +#error "Use this header only with Microsoft Visual C++ compilers!" +#endif // _MSC_VER ] + +#ifndef _MSC_INTTYPES_H_ // [ +#define _MSC_INTTYPES_H_ + +#if _MSC_VER > 1000 +#pragma once +#endif + +#include "lottie_rapidjson_msinttypes_stdint.h" + +// miloyip: VC supports inttypes.h since VC2013 +#if _MSC_VER >= 1800 +#include <inttypes.h> +#else + +// 7.8 Format conversion of integer types + +typedef struct { + intmax_t quot; + intmax_t rem; +} imaxdiv_t; + +// 7.8.1 Macros for format specifiers + +#if !defined(__cplusplus) || defined(__STDC_FORMAT_MACROS) // [ See footnote 185 at page 198 + +// The fprintf macros for signed integers are: +#define PRId8 "d" +#define PRIi8 "i" +#define PRIdLEAST8 "d" +#define PRIiLEAST8 "i" +#define PRIdFAST8 "d" +#define PRIiFAST8 "i" + +#define PRId16 "hd" +#define PRIi16 "hi" +#define PRIdLEAST16 "hd" +#define PRIiLEAST16 "hi" +#define PRIdFAST16 "hd" +#define PRIiFAST16 "hi" + +#define PRId32 "I32d" +#define PRIi32 "I32i" +#define PRIdLEAST32 "I32d" +#define PRIiLEAST32 "I32i" +#define PRIdFAST32 "I32d" +#define PRIiFAST32 "I32i" + +#define PRId64 "I64d" +#define PRIi64 "I64i" +#define PRIdLEAST64 "I64d" +#define PRIiLEAST64 "I64i" +#define PRIdFAST64 "I64d" +#define PRIiFAST64 "I64i" + +#define PRIdMAX "I64d" +#define PRIiMAX "I64i" + +#define PRIdPTR "Id" +#define PRIiPTR "Ii" + +// The fprintf macros for unsigned integers are: +#define PRIo8 "o" +#define PRIu8 "u" +#define PRIx8 "x" +#define PRIX8 "X" +#define PRIoLEAST8 "o" +#define PRIuLEAST8 "u" +#define PRIxLEAST8 "x" +#define PRIXLEAST8 "X" +#define PRIoFAST8 "o" +#define PRIuFAST8 "u" +#define PRIxFAST8 "x" +#define PRIXFAST8 "X" + +#define PRIo16 "ho" +#define PRIu16 "hu" +#define PRIx16 "hx" +#define PRIX16 "hX" +#define PRIoLEAST16 "ho" +#define PRIuLEAST16 "hu" +#define PRIxLEAST16 "hx" +#define PRIXLEAST16 "hX" +#define PRIoFAST16 "ho" +#define PRIuFAST16 "hu" +#define PRIxFAST16 "hx" +#define PRIXFAST16 "hX" + +#define PRIo32 "I32o" +#define PRIu32 "I32u" +#define PRIx32 "I32x" +#define PRIX32 "I32X" +#define PRIoLEAST32 "I32o" +#define PRIuLEAST32 "I32u" +#define PRIxLEAST32 "I32x" +#define PRIXLEAST32 "I32X" +#define PRIoFAST32 "I32o" +#define PRIuFAST32 "I32u" +#define PRIxFAST32 "I32x" +#define PRIXFAST32 "I32X" + +#define PRIo64 "I64o" +#define PRIu64 "I64u" +#define PRIx64 "I64x" +#define PRIX64 "I64X" +#define PRIoLEAST64 "I64o" +#define PRIuLEAST64 "I64u" +#define PRIxLEAST64 "I64x" +#define PRIXLEAST64 "I64X" +#define PRIoFAST64 "I64o" +#define PRIuFAST64 "I64u" +#define PRIxFAST64 "I64x" +#define PRIXFAST64 "I64X" + +#define PRIoMAX "I64o" +#define PRIuMAX "I64u" +#define PRIxMAX "I64x" +#define PRIXMAX "I64X" + +#define PRIoPTR "Io" +#define PRIuPTR "Iu" +#define PRIxPTR "Ix" +#define PRIXPTR "IX" + +// The fscanf macros for signed integers are: +#define SCNd8 "d" +#define SCNi8 "i" +#define SCNdLEAST8 "d" +#define SCNiLEAST8 "i" +#define SCNdFAST8 "d" +#define SCNiFAST8 "i" + +#define SCNd16 "hd" +#define SCNi16 "hi" +#define SCNdLEAST16 "hd" +#define SCNiLEAST16 "hi" +#define SCNdFAST16 "hd" +#define SCNiFAST16 "hi" + +#define SCNd32 "ld" +#define SCNi32 "li" +#define SCNdLEAST32 "ld" +#define SCNiLEAST32 "li" +#define SCNdFAST32 "ld" +#define SCNiFAST32 "li" + +#define SCNd64 "I64d" +#define SCNi64 "I64i" +#define SCNdLEAST64 "I64d" +#define SCNiLEAST64 "I64i" +#define SCNdFAST64 "I64d" +#define SCNiFAST64 "I64i" + +#define SCNdMAX "I64d" +#define SCNiMAX "I64i" + +#ifdef _WIN64 // [ +# define SCNdPTR "I64d" +# define SCNiPTR "I64i" +#else // _WIN64 ][ +# define SCNdPTR "ld" +# define SCNiPTR "li" +#endif // _WIN64 ] + +// The fscanf macros for unsigned integers are: +#define SCNo8 "o" +#define SCNu8 "u" +#define SCNx8 "x" +#define SCNX8 "X" +#define SCNoLEAST8 "o" +#define SCNuLEAST8 "u" +#define SCNxLEAST8 "x" +#define SCNXLEAST8 "X" +#define SCNoFAST8 "o" +#define SCNuFAST8 "u" +#define SCNxFAST8 "x" +#define SCNXFAST8 "X" + +#define SCNo16 "ho" +#define SCNu16 "hu" +#define SCNx16 "hx" +#define SCNX16 "hX" +#define SCNoLEAST16 "ho" +#define SCNuLEAST16 "hu" +#define SCNxLEAST16 "hx" +#define SCNXLEAST16 "hX" +#define SCNoFAST16 "ho" +#define SCNuFAST16 "hu" +#define SCNxFAST16 "hx" +#define SCNXFAST16 "hX" + +#define SCNo32 "lo" +#define SCNu32 "lu" +#define SCNx32 "lx" +#define SCNX32 "lX" +#define SCNoLEAST32 "lo" +#define SCNuLEAST32 "lu" +#define SCNxLEAST32 "lx" +#define SCNXLEAST32 "lX" +#define SCNoFAST32 "lo" +#define SCNuFAST32 "lu" +#define SCNxFAST32 "lx" +#define SCNXFAST32 "lX" + +#define SCNo64 "I64o" +#define SCNu64 "I64u" +#define SCNx64 "I64x" +#define SCNX64 "I64X" +#define SCNoLEAST64 "I64o" +#define SCNuLEAST64 "I64u" +#define SCNxLEAST64 "I64x" +#define SCNXLEAST64 "I64X" +#define SCNoFAST64 "I64o" +#define SCNuFAST64 "I64u" +#define SCNxFAST64 "I64x" +#define SCNXFAST64 "I64X" + +#define SCNoMAX "I64o" +#define SCNuMAX "I64u" +#define SCNxMAX "I64x" +#define SCNXMAX "I64X" + +#ifdef _WIN64 // [ +# define SCNoPTR "I64o" +# define SCNuPTR "I64u" +# define SCNxPTR "I64x" +# define SCNXPTR "I64X" +#else // _WIN64 ][ +# define SCNoPTR "lo" +# define SCNuPTR "lu" +# define SCNxPTR "lx" +# define SCNXPTR "lX" +#endif // _WIN64 ] + +#endif // __STDC_FORMAT_MACROS ] + +// 7.8.2 Functions for greatest-width integer types + +// 7.8.2.1 The imaxabs function +#define imaxabs _abs64 + +// 7.8.2.2 The imaxdiv function + +// This is modified version of div() function from Microsoft's div.c found +// in %MSVC.NET%\crt\src\div.c +#ifdef STATIC_IMAXDIV // [ +static +#else // STATIC_IMAXDIV ][ +_inline +#endif // STATIC_IMAXDIV ] +imaxdiv_t __cdecl imaxdiv(intmax_t numer, intmax_t denom) +{ + imaxdiv_t result; + + result.quot = numer / denom; + result.rem = numer % denom; + + if (numer < 0 && result.rem > 0) { + // did division wrong; must fix up + ++result.quot; + result.rem -= denom; + } + + return result; +} + +// 7.8.2.3 The strtoimax and strtoumax functions +#define strtoimax _strtoi64 +#define strtoumax _strtoui64 + +// 7.8.2.4 The wcstoimax and wcstoumax functions +#define wcstoimax _wcstoi64 +#define wcstoumax _wcstoui64 + +#endif // _MSC_VER >= 1800 + +#endif // _MSC_INTTYPES_H_ ] diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_msinttypes_stdint.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_msinttypes_stdint.h new file mode 100644 index 00000000..3d4477b9 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_msinttypes_stdint.h @@ -0,0 +1,300 @@ +// ISO C9x compliant stdint.h for Microsoft Visual Studio +// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 +// +// Copyright (c) 2006-2013 Alexander Chemeris +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// 3. Neither the name of the product nor the names of its contributors may +// be used to endorse or promote products derived from this software +// without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO +// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; +// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF +// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +/////////////////////////////////////////////////////////////////////////////// + +// The above software in this distribution may have been modified by +// THL A29 Limited ("Tencent Modifications"). +// All Tencent Modifications are Copyright (C) 2015 THL A29 Limited. + +#ifndef _MSC_VER // [ +#error "Use this header only with Microsoft Visual C++ compilers!" +#endif // _MSC_VER ] + +#ifndef _MSC_STDINT_H_ // [ +#define _MSC_STDINT_H_ + +#if _MSC_VER > 1000 +#pragma once +#endif + +// miloyip: Originally Visual Studio 2010 uses its own stdint.h. However it generates warning with INT64_C(), so change to use this file for vs2010. +#if _MSC_VER >= 1600 // [ +#include <stdint.h> + +#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [ See footnote 224 at page 260 + +#undef INT8_C +#undef INT16_C +#undef INT32_C +#undef INT64_C +#undef UINT8_C +#undef UINT16_C +#undef UINT32_C +#undef UINT64_C + +// 7.18.4.1 Macros for minimum-width integer constants + +#define INT8_C(val) val##i8 +#define INT16_C(val) val##i16 +#define INT32_C(val) val##i32 +#define INT64_C(val) val##i64 + +#define UINT8_C(val) val##ui8 +#define UINT16_C(val) val##ui16 +#define UINT32_C(val) val##ui32 +#define UINT64_C(val) val##ui64 + +// 7.18.4.2 Macros for greatest-width integer constants +// These #ifndef's are needed to prevent collisions with <boost/cstdint.hpp>. +// Check out Issue 9 for the details. +#ifndef INTMAX_C // [ +# define INTMAX_C INT64_C +#endif // INTMAX_C ] +#ifndef UINTMAX_C // [ +# define UINTMAX_C UINT64_C +#endif // UINTMAX_C ] + +#endif // __STDC_CONSTANT_MACROS ] + +#else // ] _MSC_VER >= 1700 [ + +#include <limits.h> + +// For Visual Studio 6 in C++ mode and for many Visual Studio versions when +// compiling for ARM we have to wrap <wchar.h> include with 'extern "C++" {}' +// or compiler would give many errors like this: +// error C2733: second C linkage of overloaded function 'wmemchr' not allowed +#if defined(__cplusplus) && !defined(_M_ARM) +extern "C" { +#endif +# include <wchar.h> +#if defined(__cplusplus) && !defined(_M_ARM) +} +#endif + +// Define _W64 macros to mark types changing their size, like intptr_t. +#ifndef _W64 +# if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300 +# define _W64 __w64 +# else +# define _W64 +# endif +#endif + + +// 7.18.1 Integer types + +// 7.18.1.1 Exact-width integer types + +// Visual Studio 6 and Embedded Visual C++ 4 doesn't +// realize that, e.g. char has the same size as __int8 +// so we give up on __intX for them. +#if (_MSC_VER < 1300) + typedef signed char int8_t; + typedef signed short int16_t; + typedef signed int int32_t; + typedef unsigned char uint8_t; + typedef unsigned short uint16_t; + typedef unsigned int uint32_t; +#else + typedef signed __int8 int8_t; + typedef signed __int16 int16_t; + typedef signed __int32 int32_t; + typedef unsigned __int8 uint8_t; + typedef unsigned __int16 uint16_t; + typedef unsigned __int32 uint32_t; +#endif +typedef signed __int64 int64_t; +typedef unsigned __int64 uint64_t; + + +// 7.18.1.2 Minimum-width integer types +typedef int8_t int_least8_t; +typedef int16_t int_least16_t; +typedef int32_t int_least32_t; +typedef int64_t int_least64_t; +typedef uint8_t uint_least8_t; +typedef uint16_t uint_least16_t; +typedef uint32_t uint_least32_t; +typedef uint64_t uint_least64_t; + +// 7.18.1.3 Fastest minimum-width integer types +typedef int8_t int_fast8_t; +typedef int16_t int_fast16_t; +typedef int32_t int_fast32_t; +typedef int64_t int_fast64_t; +typedef uint8_t uint_fast8_t; +typedef uint16_t uint_fast16_t; +typedef uint32_t uint_fast32_t; +typedef uint64_t uint_fast64_t; + +// 7.18.1.4 Integer types capable of holding object pointers +#ifdef _WIN64 // [ + typedef signed __int64 intptr_t; + typedef unsigned __int64 uintptr_t; +#else // _WIN64 ][ + typedef _W64 signed int intptr_t; + typedef _W64 unsigned int uintptr_t; +#endif // _WIN64 ] + +// 7.18.1.5 Greatest-width integer types +typedef int64_t intmax_t; +typedef uint64_t uintmax_t; + + +// 7.18.2 Limits of specified-width integer types + +#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [ See footnote 220 at page 257 and footnote 221 at page 259 + +// 7.18.2.1 Limits of exact-width integer types +#define INT8_MIN ((int8_t)_I8_MIN) +#define INT8_MAX _I8_MAX +#define INT16_MIN ((int16_t)_I16_MIN) +#define INT16_MAX _I16_MAX +#define INT32_MIN ((int32_t)_I32_MIN) +#define INT32_MAX _I32_MAX +#define INT64_MIN ((int64_t)_I64_MIN) +#define INT64_MAX _I64_MAX +#define UINT8_MAX _UI8_MAX +#define UINT16_MAX _UI16_MAX +#define UINT32_MAX _UI32_MAX +#define UINT64_MAX _UI64_MAX + +// 7.18.2.2 Limits of minimum-width integer types +#define INT_LEAST8_MIN INT8_MIN +#define INT_LEAST8_MAX INT8_MAX +#define INT_LEAST16_MIN INT16_MIN +#define INT_LEAST16_MAX INT16_MAX +#define INT_LEAST32_MIN INT32_MIN +#define INT_LEAST32_MAX INT32_MAX +#define INT_LEAST64_MIN INT64_MIN +#define INT_LEAST64_MAX INT64_MAX +#define UINT_LEAST8_MAX UINT8_MAX +#define UINT_LEAST16_MAX UINT16_MAX +#define UINT_LEAST32_MAX UINT32_MAX +#define UINT_LEAST64_MAX UINT64_MAX + +// 7.18.2.3 Limits of fastest minimum-width integer types +#define INT_FAST8_MIN INT8_MIN +#define INT_FAST8_MAX INT8_MAX +#define INT_FAST16_MIN INT16_MIN +#define INT_FAST16_MAX INT16_MAX +#define INT_FAST32_MIN INT32_MIN +#define INT_FAST32_MAX INT32_MAX +#define INT_FAST64_MIN INT64_MIN +#define INT_FAST64_MAX INT64_MAX +#define UINT_FAST8_MAX UINT8_MAX +#define UINT_FAST16_MAX UINT16_MAX +#define UINT_FAST32_MAX UINT32_MAX +#define UINT_FAST64_MAX UINT64_MAX + +// 7.18.2.4 Limits of integer types capable of holding object pointers +#ifdef _WIN64 // [ +# define INTPTR_MIN INT64_MIN +# define INTPTR_MAX INT64_MAX +# define UINTPTR_MAX UINT64_MAX +#else // _WIN64 ][ +# define INTPTR_MIN INT32_MIN +# define INTPTR_MAX INT32_MAX +# define UINTPTR_MAX UINT32_MAX +#endif // _WIN64 ] + +// 7.18.2.5 Limits of greatest-width integer types +#define INTMAX_MIN INT64_MIN +#define INTMAX_MAX INT64_MAX +#define UINTMAX_MAX UINT64_MAX + +// 7.18.3 Limits of other integer types + +#ifdef _WIN64 // [ +# define PTRDIFF_MIN _I64_MIN +# define PTRDIFF_MAX _I64_MAX +#else // _WIN64 ][ +# define PTRDIFF_MIN _I32_MIN +# define PTRDIFF_MAX _I32_MAX +#endif // _WIN64 ] + +#define SIG_ATOMIC_MIN INT_MIN +#define SIG_ATOMIC_MAX INT_MAX + +#ifndef SIZE_MAX // [ +# ifdef _WIN64 // [ +# define SIZE_MAX _UI64_MAX +# else // _WIN64 ][ +# define SIZE_MAX _UI32_MAX +# endif // _WIN64 ] +#endif // SIZE_MAX ] + +// WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h> +#ifndef WCHAR_MIN // [ +# define WCHAR_MIN 0 +#endif // WCHAR_MIN ] +#ifndef WCHAR_MAX // [ +# define WCHAR_MAX _UI16_MAX +#endif // WCHAR_MAX ] + +#define WINT_MIN 0 +#define WINT_MAX _UI16_MAX + +#endif // __STDC_LIMIT_MACROS ] + + +// 7.18.4 Limits of other integer types + +#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [ See footnote 224 at page 260 + +// 7.18.4.1 Macros for minimum-width integer constants + +#define INT8_C(val) val##i8 +#define INT16_C(val) val##i16 +#define INT32_C(val) val##i32 +#define INT64_C(val) val##i64 + +#define UINT8_C(val) val##ui8 +#define UINT16_C(val) val##ui16 +#define UINT32_C(val) val##ui32 +#define UINT64_C(val) val##ui64 + +// 7.18.4.2 Macros for greatest-width integer constants +// These #ifndef's are needed to prevent collisions with <boost/cstdint.hpp>. +// Check out Issue 9 for the details. +#ifndef INTMAX_C // [ +# define INTMAX_C INT64_C +#endif // INTMAX_C ] +#ifndef UINTMAX_C // [ +# define UINTMAX_C UINT64_C +#endif // UINTMAX_C ] + +#endif // __STDC_CONSTANT_MACROS ] + +#endif // _MSC_VER >= 1600 ] + +#endif // _MSC_STDINT_H_ ] diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_ostreamwrapper.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_ostreamwrapper.h new file mode 100644 index 00000000..1a606077 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_ostreamwrapper.h @@ -0,0 +1,81 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_OSTREAMWRAPPER_H_ +#define RAPIDJSON_OSTREAMWRAPPER_H_ + +#include "lottie_rapidjson_stream.h" +#include <iosfwd> + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(padded) +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +//! Wrapper of \c std::basic_ostream into RapidJSON's Stream concept. +/*! + The classes can be wrapped including but not limited to: + + - \c std::ostringstream + - \c std::stringstream + - \c std::wpstringstream + - \c std::wstringstream + - \c std::ifstream + - \c std::fstream + - \c std::wofstream + - \c std::wfstream + + \tparam StreamType Class derived from \c std::basic_ostream. +*/ + +template <typename StreamType> +class BasicOStreamWrapper { +public: + typedef typename StreamType::char_type Ch; + BasicOStreamWrapper(StreamType& stream) : stream_(stream) {} + + void Put(Ch c) { + stream_.put(c); + } + + void Flush() { + stream_.flush(); + } + + // Not implemented + char Peek() const { RAPIDJSON_ASSERT(false); return 0; } + char Take() { RAPIDJSON_ASSERT(false); return 0; } + size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; } + char* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + size_t PutEnd(char*) { RAPIDJSON_ASSERT(false); return 0; } + +private: + BasicOStreamWrapper(const BasicOStreamWrapper&); + BasicOStreamWrapper& operator=(const BasicOStreamWrapper&); + + StreamType& stream_; +}; + +typedef BasicOStreamWrapper<std::ostream> OStreamWrapper; +typedef BasicOStreamWrapper<std::wostream> WOStreamWrapper; + +#ifdef __clang__ +RAPIDJSON_DIAG_POP +#endif + +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_OSTREAMWRAPPER_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_pointer.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_pointer.h new file mode 100644 index 00000000..82b25eb9 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_pointer.h @@ -0,0 +1,1415 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_POINTER_H_ +#define RAPIDJSON_POINTER_H_ + +#include "lottie_rapidjson_document.h" +#include "lottie_rapidjson_internal_itoa.h" + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(switch-enum) +#elif defined(_MSC_VER) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +static const SizeType kPointerInvalidIndex = ~SizeType(0); //!< Represents an invalid index in GenericPointer::Token + +//! Error code of parsing. +/*! \ingroup RAPIDJSON_ERRORS + \see GenericPointer::GenericPointer, GenericPointer::GetParseErrorCode +*/ +enum PointerParseErrorCode { + kPointerParseErrorNone = 0, //!< The parse is successful + + kPointerParseErrorTokenMustBeginWithSolidus, //!< A token must begin with a '/' + kPointerParseErrorInvalidEscape, //!< Invalid escape + kPointerParseErrorInvalidPercentEncoding, //!< Invalid percent encoding in URI fragment + kPointerParseErrorCharacterMustPercentEncode //!< A character must percent encoded in URI fragment +}; + +/////////////////////////////////////////////////////////////////////////////// +// GenericPointer + +//! Represents a JSON Pointer. Use Pointer for UTF8 encoding and default allocator. +/*! + This class implements RFC 6901 "JavaScript Object Notation (JSON) Pointer" + (https://tools.ietf.org/html/rfc6901). + + A JSON pointer is for identifying a specific value in a JSON document + (GenericDocument). It can simplify coding of DOM tree manipulation, because it + can access multiple-level depth of DOM tree with single API call. + + After it parses a string representation (e.g. "/foo/0" or URI fragment + representation (e.g. "#/foo/0") into its internal representation (tokens), + it can be used to resolve a specific value in multiple documents, or sub-tree + of documents. + + Contrary to GenericValue, Pointer can be copy constructed and copy assigned. + Apart from assignment, a Pointer cannot be modified after construction. + + Although Pointer is very convenient, please aware that constructing Pointer + involves parsing and dynamic memory allocation. A special constructor with user- + supplied tokens eliminates these. + + GenericPointer depends on GenericDocument and GenericValue. + + \tparam ValueType The value type of the DOM tree. E.g. GenericValue<UTF8<> > + \tparam Allocator The allocator type for allocating memory for internal representation. + + \note GenericPointer uses same encoding of ValueType. + However, Allocator of GenericPointer is independent of Allocator of Value. +*/ +template <typename ValueType, typename Allocator = CrtAllocator> +class GenericPointer { +public: + typedef typename ValueType::EncodingType EncodingType; //!< Encoding type from Value + typedef typename ValueType::Ch Ch; //!< Character type from Value + + //! A token is the basic units of internal representation. + /*! + A JSON pointer string representation "/foo/123" is parsed to two tokens: + "foo" and 123. 123 will be represented in both numeric form and string form. + They are resolved according to the actual value type (object or array). + + For token that are not numbers, or the numeric value is out of bound + (greater than limits of SizeType), they are only treated as string form + (i.e. the token's index will be equal to kPointerInvalidIndex). + + This struct is public so that user can create a Pointer without parsing and + allocation, using a special constructor. + */ + struct Token { + const Ch* name; //!< Name of the token. It has null character at the end but it can contain null character. + SizeType length; //!< Length of the name. + SizeType index; //!< A valid array index, if it is not equal to kPointerInvalidIndex. + }; + + //!@name Constructors and destructor. + //@{ + + //! Default constructor. + GenericPointer(Allocator* allocator = 0) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {} + + //! Constructor that parses a string or URI fragment representation. + /*! + \param source A null-terminated, string or URI fragment representation of JSON pointer. + \param allocator User supplied allocator for this pointer. If no allocator is provided, it creates a self-owned one. + */ + explicit GenericPointer(const Ch* source, Allocator* allocator = 0) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) { + Parse(source, internal::StrLen(source)); + } + +#if RAPIDJSON_HAS_STDSTRING + //! Constructor that parses a string or URI fragment representation. + /*! + \param source A string or URI fragment representation of JSON pointer. + \param allocator User supplied allocator for this pointer. If no allocator is provided, it creates a self-owned one. + \note Requires the definition of the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING. + */ + explicit GenericPointer(const std::basic_string<Ch>& source, Allocator* allocator = 0) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) { + Parse(source.c_str(), source.size()); + } +#endif + + //! Constructor that parses a string or URI fragment representation, with length of the source string. + /*! + \param source A string or URI fragment representation of JSON pointer. + \param length Length of source. + \param allocator User supplied allocator for this pointer. If no allocator is provided, it creates a self-owned one. + \note Slightly faster than the overload without length. + */ + GenericPointer(const Ch* source, size_t length, Allocator* allocator = 0) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) { + Parse(source, length); + } + + //! Constructor with user-supplied tokens. + /*! + This constructor let user supplies const array of tokens. + This prevents the parsing process and eliminates allocation. + This is preferred for memory constrained environments. + + \param tokens An constant array of tokens representing the JSON pointer. + \param tokenCount Number of tokens. + + \b Example + \code + #define NAME(s) { s, sizeof(s) / sizeof(s[0]) - 1, kPointerInvalidIndex } + #define INDEX(i) { #i, sizeof(#i) - 1, i } + + static const Pointer::Token kTokens[] = { NAME("foo"), INDEX(123) }; + static const Pointer p(kTokens, sizeof(kTokens) / sizeof(kTokens[0])); + // Equivalent to static const Pointer p("/foo/123"); + + #undef NAME + #undef INDEX + \endcode + */ + GenericPointer(const Token* tokens, size_t tokenCount) : allocator_(), ownAllocator_(), nameBuffer_(), tokens_(const_cast<Token*>(tokens)), tokenCount_(tokenCount), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {} + + //! Copy constructor. + GenericPointer(const GenericPointer& rhs) : allocator_(rhs.allocator_), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) { + *this = rhs; + } + + //! Copy constructor. + GenericPointer(const GenericPointer& rhs, Allocator* allocator) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) { + *this = rhs; + } + + //! Destructor. + ~GenericPointer() { + if (nameBuffer_) // If user-supplied tokens constructor is used, nameBuffer_ is nullptr and tokens_ are not deallocated. + Allocator::Free(tokens_); + RAPIDJSON_DELETE(ownAllocator_); + } + + //! Assignment operator. + GenericPointer& operator=(const GenericPointer& rhs) { + if (this != &rhs) { + // Do not delete ownAllcator + if (nameBuffer_) + Allocator::Free(tokens_); + + tokenCount_ = rhs.tokenCount_; + parseErrorOffset_ = rhs.parseErrorOffset_; + parseErrorCode_ = rhs.parseErrorCode_; + + if (rhs.nameBuffer_) + CopyFromRaw(rhs); // Normally parsed tokens. + else { + tokens_ = rhs.tokens_; // User supplied const tokens. + nameBuffer_ = 0; + } + } + return *this; + } + + //! Swap the content of this pointer with an other. + /*! + \param other The pointer to swap with. + \note Constant complexity. + */ + GenericPointer& Swap(GenericPointer& other) RAPIDJSON_NOEXCEPT { + internal::Swap(allocator_, other.allocator_); + internal::Swap(ownAllocator_, other.ownAllocator_); + internal::Swap(nameBuffer_, other.nameBuffer_); + internal::Swap(tokens_, other.tokens_); + internal::Swap(tokenCount_, other.tokenCount_); + internal::Swap(parseErrorOffset_, other.parseErrorOffset_); + internal::Swap(parseErrorCode_, other.parseErrorCode_); + return *this; + } + + //! free-standing swap function helper + /*! + Helper function to enable support for common swap implementation pattern based on \c std::swap: + \code + void swap(MyClass& a, MyClass& b) { + using std::swap; + swap(a.pointer, b.pointer); + // ... + } + \endcode + \see Swap() + */ + friend inline void swap(GenericPointer& a, GenericPointer& b) RAPIDJSON_NOEXCEPT { a.Swap(b); } + + //@} + + //!@name Append token + //@{ + + //! Append a token and return a new Pointer + /*! + \param token Token to be appended. + \param allocator Allocator for the newly return Pointer. + \return A new Pointer with appended token. + */ + GenericPointer Append(const Token& token, Allocator* allocator = 0) const { + GenericPointer r; + r.allocator_ = allocator; + Ch *p = r.CopyFromRaw(*this, 1, token.length + 1); + std::memcpy(p, token.name, (token.length + 1) * sizeof(Ch)); + r.tokens_[tokenCount_].name = p; + r.tokens_[tokenCount_].length = token.length; + r.tokens_[tokenCount_].index = token.index; + return r; + } + + //! Append a name token with length, and return a new Pointer + /*! + \param name Name to be appended. + \param length Length of name. + \param allocator Allocator for the newly return Pointer. + \return A new Pointer with appended token. + */ + GenericPointer Append(const Ch* name, SizeType length, Allocator* allocator = 0) const { + Token token = { name, length, kPointerInvalidIndex }; + return Append(token, allocator); + } + + //! Append a name token without length, and return a new Pointer + /*! + \param name Name (const Ch*) to be appended. + \param allocator Allocator for the newly return Pointer. + \return A new Pointer with appended token. + */ + template <typename T> + RAPIDJSON_DISABLEIF_RETURN((internal::NotExpr<internal::IsSame<typename internal::RemoveConst<T>::Type, Ch> >), (GenericPointer)) + Append(T* name, Allocator* allocator = 0) const { + return Append(name, internal::StrLen(name), allocator); + } + +#if RAPIDJSON_HAS_STDSTRING + //! Append a name token, and return a new Pointer + /*! + \param name Name to be appended. + \param allocator Allocator for the newly return Pointer. + \return A new Pointer with appended token. + */ + GenericPointer Append(const std::basic_string<Ch>& name, Allocator* allocator = 0) const { + return Append(name.c_str(), static_cast<SizeType>(name.size()), allocator); + } +#endif + + //! Append a index token, and return a new Pointer + /*! + \param index Index to be appended. + \param allocator Allocator for the newly return Pointer. + \return A new Pointer with appended token. + */ + GenericPointer Append(SizeType index, Allocator* allocator = 0) const { + char buffer[21]; + char* end = sizeof(SizeType) == 4 ? internal::u32toa(index, buffer) : internal::u64toa(index, buffer); + SizeType length = static_cast<SizeType>(end - buffer); + buffer[length] = '\0'; + + if (sizeof(Ch) == 1) { + Token token = { reinterpret_cast<Ch*>(buffer), length, index }; + return Append(token, allocator); + } + else { + Ch name[21]; + for (size_t i = 0; i <= length; i++) + name[i] = static_cast<Ch>(buffer[i]); + Token token = { name, length, index }; + return Append(token, allocator); + } + } + + //! Append a token by value, and return a new Pointer + /*! + \param token token to be appended. + \param allocator Allocator for the newly return Pointer. + \return A new Pointer with appended token. + */ + GenericPointer Append(const ValueType& token, Allocator* allocator = 0) const { + if (token.IsString()) + return Append(token.GetString(), token.GetStringLength(), allocator); + else { + RAPIDJSON_ASSERT(token.IsUint64()); + RAPIDJSON_ASSERT(token.GetUint64() <= SizeType(~0)); + return Append(static_cast<SizeType>(token.GetUint64()), allocator); + } + } + + //!@name Handling Parse Error + //@{ + + //! Check whether this is a valid pointer. + bool IsValid() const { return parseErrorCode_ == kPointerParseErrorNone; } + + //! Get the parsing error offset in code unit. + size_t GetParseErrorOffset() const { return parseErrorOffset_; } + + //! Get the parsing error code. + PointerParseErrorCode GetParseErrorCode() const { return parseErrorCode_; } + + //@} + + //! Get the allocator of this pointer. + Allocator& GetAllocator() { return *allocator_; } + + //!@name Tokens + //@{ + + //! Get the token array (const version only). + const Token* GetTokens() const { return tokens_; } + + //! Get the number of tokens. + size_t GetTokenCount() const { return tokenCount_; } + + //@} + + //!@name Equality/inequality operators + //@{ + + //! Equality operator. + /*! + \note When any pointers are invalid, always returns false. + */ + bool operator==(const GenericPointer& rhs) const { + if (!IsValid() || !rhs.IsValid() || tokenCount_ != rhs.tokenCount_) + return false; + + for (size_t i = 0; i < tokenCount_; i++) { + if (tokens_[i].index != rhs.tokens_[i].index || + tokens_[i].length != rhs.tokens_[i].length || + (tokens_[i].length != 0 && std::memcmp(tokens_[i].name, rhs.tokens_[i].name, sizeof(Ch)* tokens_[i].length) != 0)) + { + return false; + } + } + + return true; + } + + //! Inequality operator. + /*! + \note When any pointers are invalid, always returns true. + */ + bool operator!=(const GenericPointer& rhs) const { return !(*this == rhs); } + + //! Less than operator. + /*! + \note Invalid pointers are always greater than valid ones. + */ + bool operator<(const GenericPointer& rhs) const { + if (!IsValid()) + return false; + if (!rhs.IsValid()) + return true; + + if (tokenCount_ != rhs.tokenCount_) + return tokenCount_ < rhs.tokenCount_; + + for (size_t i = 0; i < tokenCount_; i++) { + if (tokens_[i].index != rhs.tokens_[i].index) + return tokens_[i].index < rhs.tokens_[i].index; + + if (tokens_[i].length != rhs.tokens_[i].length) + return tokens_[i].length < rhs.tokens_[i].length; + + if (int cmp = std::memcmp(tokens_[i].name, rhs.tokens_[i].name, sizeof(Ch) * tokens_[i].length)) + return cmp < 0; + } + + return false; + } + + //@} + + //!@name Stringify + //@{ + + //! Stringify the pointer into string representation. + /*! + \tparam OutputStream Type of output stream. + \param os The output stream. + */ + template<typename OutputStream> + bool Stringify(OutputStream& os) const { + return Stringify<false, OutputStream>(os); + } + + //! Stringify the pointer into URI fragment representation. + /*! + \tparam OutputStream Type of output stream. + \param os The output stream. + */ + template<typename OutputStream> + bool StringifyUriFragment(OutputStream& os) const { + return Stringify<true, OutputStream>(os); + } + + //@} + + //!@name Create value + //@{ + + //! Create a value in a subtree. + /*! + If the value is not exist, it creates all parent values and a JSON Null value. + So it always succeed and return the newly created or existing value. + + Remind that it may change types of parents according to tokens, so it + potentially removes previously stored values. For example, if a document + was an array, and "/foo" is used to create a value, then the document + will be changed to an object, and all existing array elements are lost. + + \param root Root value of a DOM subtree to be resolved. It can be any value other than document root. + \param allocator Allocator for creating the values if the specified value or its parents are not exist. + \param alreadyExist If non-null, it stores whether the resolved value is already exist. + \return The resolved newly created (a JSON Null value), or already exists value. + */ + ValueType& Create(ValueType& root, typename ValueType::AllocatorType& allocator, bool* alreadyExist = 0) const { + RAPIDJSON_ASSERT(IsValid()); + ValueType* v = &root; + bool exist = true; + for (const Token *t = tokens_; t != tokens_ + tokenCount_; ++t) { + if (v->IsArray() && t->name[0] == '-' && t->length == 1) { + v->PushBack(ValueType().Move(), allocator); + v = &((*v)[v->Size() - 1]); + exist = false; + } + else { + if (t->index == kPointerInvalidIndex) { // must be object name + if (!v->IsObject()) + v->SetObject(); // Change to Object + } + else { // object name or array index + if (!v->IsArray() && !v->IsObject()) + v->SetArray(); // Change to Array + } + + if (v->IsArray()) { + if (t->index >= v->Size()) { + v->Reserve(t->index + 1, allocator); + while (t->index >= v->Size()) + v->PushBack(ValueType().Move(), allocator); + exist = false; + } + v = &((*v)[t->index]); + } + else { + typename ValueType::MemberIterator m = v->FindMember(GenericValue<EncodingType>(GenericStringRef<Ch>(t->name, t->length))); + if (m == v->MemberEnd()) { + v->AddMember(ValueType(t->name, t->length, allocator).Move(), ValueType().Move(), allocator); + m = v->MemberEnd(); + v = &(--m)->value; // Assumes AddMember() appends at the end + exist = false; + } + else + v = &m->value; + } + } + } + + if (alreadyExist) + *alreadyExist = exist; + + return *v; + } + + //! Creates a value in a document. + /*! + \param document A document to be resolved. + \param alreadyExist If non-null, it stores whether the resolved value is already exist. + \return The resolved newly created, or already exists value. + */ + template <typename stackAllocator> + ValueType& Create(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, bool* alreadyExist = 0) const { + return Create(document, document.GetAllocator(), alreadyExist); + } + + //@} + + //!@name Query value + //@{ + + //! Query a value in a subtree. + /*! + \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. + \param unresolvedTokenIndex If the pointer cannot resolve a token in the pointer, this parameter can obtain the index of unresolved token. + \return Pointer to the value if it can be resolved. Otherwise null. + + \note + There are only 3 situations when a value cannot be resolved: + 1. A value in the path is not an array nor object. + 2. An object value does not contain the token. + 3. A token is out of range of an array value. + + Use unresolvedTokenIndex to retrieve the token index. + */ + ValueType* Get(ValueType& root, size_t* unresolvedTokenIndex = 0) const { + RAPIDJSON_ASSERT(IsValid()); + ValueType* v = &root; + for (const Token *t = tokens_; t != tokens_ + tokenCount_; ++t) { + switch (v->GetType()) { + case kObjectType: + { + typename ValueType::MemberIterator m = v->FindMember(GenericValue<EncodingType>(GenericStringRef<Ch>(t->name, t->length))); + if (m == v->MemberEnd()) + break; + v = &m->value; + } + continue; + case kArrayType: + if (t->index == kPointerInvalidIndex || t->index >= v->Size()) + break; + v = &((*v)[t->index]); + continue; + default: + break; + } + + // Error: unresolved token + if (unresolvedTokenIndex) + *unresolvedTokenIndex = static_cast<size_t>(t - tokens_); + return 0; + } + return v; + } + + //! Query a const value in a const subtree. + /*! + \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. + \return Pointer to the value if it can be resolved. Otherwise null. + */ + const ValueType* Get(const ValueType& root, size_t* unresolvedTokenIndex = 0) const { + return Get(const_cast<ValueType&>(root), unresolvedTokenIndex); + } + + //@} + + //!@name Query a value with default + //@{ + + //! Query a value in a subtree with default value. + /*! + Similar to Get(), but if the specified value do not exists, it creates all parents and clone the default value. + So that this function always succeed. + + \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. + \param defaultValue Default value to be cloned if the value was not exists. + \param allocator Allocator for creating the values if the specified value or its parents are not exist. + \see Create() + */ + ValueType& GetWithDefault(ValueType& root, const ValueType& defaultValue, typename ValueType::AllocatorType& allocator) const { + bool alreadyExist; + ValueType& v = Create(root, allocator, &alreadyExist); + return alreadyExist ? v : v.CopyFrom(defaultValue, allocator); + } + + //! Query a value in a subtree with default null-terminated string. + ValueType& GetWithDefault(ValueType& root, const Ch* defaultValue, typename ValueType::AllocatorType& allocator) const { + bool alreadyExist; + ValueType& v = Create(root, allocator, &alreadyExist); + return alreadyExist ? v : v.SetString(defaultValue, allocator); + } + +#if RAPIDJSON_HAS_STDSTRING + //! Query a value in a subtree with default std::basic_string. + ValueType& GetWithDefault(ValueType& root, const std::basic_string<Ch>& defaultValue, typename ValueType::AllocatorType& allocator) const { + bool alreadyExist; + ValueType& v = Create(root, allocator, &alreadyExist); + return alreadyExist ? v : v.SetString(defaultValue, allocator); + } +#endif + + //! Query a value in a subtree with default primitive value. + /*! + \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool + */ + template <typename T> + RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&)) + GetWithDefault(ValueType& root, T defaultValue, typename ValueType::AllocatorType& allocator) const { + return GetWithDefault(root, ValueType(defaultValue).Move(), allocator); + } + + //! Query a value in a document with default value. + template <typename stackAllocator> + ValueType& GetWithDefault(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, const ValueType& defaultValue) const { + return GetWithDefault(document, defaultValue, document.GetAllocator()); + } + + //! Query a value in a document with default null-terminated string. + template <typename stackAllocator> + ValueType& GetWithDefault(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, const Ch* defaultValue) const { + return GetWithDefault(document, defaultValue, document.GetAllocator()); + } + +#if RAPIDJSON_HAS_STDSTRING + //! Query a value in a document with default std::basic_string. + template <typename stackAllocator> + ValueType& GetWithDefault(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, const std::basic_string<Ch>& defaultValue) const { + return GetWithDefault(document, defaultValue, document.GetAllocator()); + } +#endif + + //! Query a value in a document with default primitive value. + /*! + \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool + */ + template <typename T, typename stackAllocator> + RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&)) + GetWithDefault(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, T defaultValue) const { + return GetWithDefault(document, defaultValue, document.GetAllocator()); + } + + //@} + + //!@name Set a value + //@{ + + //! Set a value in a subtree, with move semantics. + /*! + It creates all parents if they are not exist or types are different to the tokens. + So this function always succeeds but potentially remove existing values. + + \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. + \param value Value to be set. + \param allocator Allocator for creating the values if the specified value or its parents are not exist. + \see Create() + */ + ValueType& Set(ValueType& root, ValueType& value, typename ValueType::AllocatorType& allocator) const { + return Create(root, allocator) = value; + } + + //! Set a value in a subtree, with copy semantics. + ValueType& Set(ValueType& root, const ValueType& value, typename ValueType::AllocatorType& allocator) const { + return Create(root, allocator).CopyFrom(value, allocator); + } + + //! Set a null-terminated string in a subtree. + ValueType& Set(ValueType& root, const Ch* value, typename ValueType::AllocatorType& allocator) const { + return Create(root, allocator) = ValueType(value, allocator).Move(); + } + +#if RAPIDJSON_HAS_STDSTRING + //! Set a std::basic_string in a subtree. + ValueType& Set(ValueType& root, const std::basic_string<Ch>& value, typename ValueType::AllocatorType& allocator) const { + return Create(root, allocator) = ValueType(value, allocator).Move(); + } +#endif + + //! Set a primitive value in a subtree. + /*! + \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool + */ + template <typename T> + RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&)) + Set(ValueType& root, T value, typename ValueType::AllocatorType& allocator) const { + return Create(root, allocator) = ValueType(value).Move(); + } + + //! Set a value in a document, with move semantics. + template <typename stackAllocator> + ValueType& Set(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, ValueType& value) const { + return Create(document) = value; + } + + //! Set a value in a document, with copy semantics. + template <typename stackAllocator> + ValueType& Set(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, const ValueType& value) const { + return Create(document).CopyFrom(value, document.GetAllocator()); + } + + //! Set a null-terminated string in a document. + template <typename stackAllocator> + ValueType& Set(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, const Ch* value) const { + return Create(document) = ValueType(value, document.GetAllocator()).Move(); + } + +#if RAPIDJSON_HAS_STDSTRING + //! Sets a std::basic_string in a document. + template <typename stackAllocator> + ValueType& Set(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, const std::basic_string<Ch>& value) const { + return Create(document) = ValueType(value, document.GetAllocator()).Move(); + } +#endif + + //! Set a primitive value in a document. + /*! + \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool + */ + template <typename T, typename stackAllocator> + RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&)) + Set(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, T value) const { + return Create(document) = value; + } + + //@} + + //!@name Swap a value + //@{ + + //! Swap a value with a value in a subtree. + /*! + It creates all parents if they are not exist or types are different to the tokens. + So this function always succeeds but potentially remove existing values. + + \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. + \param value Value to be swapped. + \param allocator Allocator for creating the values if the specified value or its parents are not exist. + \see Create() + */ + ValueType& Swap(ValueType& root, ValueType& value, typename ValueType::AllocatorType& allocator) const { + return Create(root, allocator).Swap(value); + } + + //! Swap a value with a value in a document. + template <typename stackAllocator> + ValueType& Swap(GenericDocument<EncodingType, typename ValueType::AllocatorType, stackAllocator>& document, ValueType& value) const { + return Create(document).Swap(value); + } + + //@} + + //! Erase a value in a subtree. + /*! + \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. + \return Whether the resolved value is found and erased. + + \note Erasing with an empty pointer \c Pointer(""), i.e. the root, always fail and return false. + */ + bool Erase(ValueType& root) const { + RAPIDJSON_ASSERT(IsValid()); + if (tokenCount_ == 0) // Cannot erase the root + return false; + + ValueType* v = &root; + const Token* last = tokens_ + (tokenCount_ - 1); + for (const Token *t = tokens_; t != last; ++t) { + switch (v->GetType()) { + case kObjectType: + { + typename ValueType::MemberIterator m = v->FindMember(GenericValue<EncodingType>(GenericStringRef<Ch>(t->name, t->length))); + if (m == v->MemberEnd()) + return false; + v = &m->value; + } + break; + case kArrayType: + if (t->index == kPointerInvalidIndex || t->index >= v->Size()) + return false; + v = &((*v)[t->index]); + break; + default: + return false; + } + } + + switch (v->GetType()) { + case kObjectType: + return v->EraseMember(GenericStringRef<Ch>(last->name, last->length)); + case kArrayType: + if (last->index == kPointerInvalidIndex || last->index >= v->Size()) + return false; + v->Erase(v->Begin() + last->index); + return true; + default: + return false; + } + } + +private: + //! Clone the content from rhs to this. + /*! + \param rhs Source pointer. + \param extraToken Extra tokens to be allocated. + \param extraNameBufferSize Extra name buffer size (in number of Ch) to be allocated. + \return Start of non-occupied name buffer, for storing extra names. + */ + Ch* CopyFromRaw(const GenericPointer& rhs, size_t extraToken = 0, size_t extraNameBufferSize = 0) { + if (!allocator_) // allocator is independently owned. + ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)(); + + size_t nameBufferSize = rhs.tokenCount_; // null terminators for tokens + for (Token *t = rhs.tokens_; t != rhs.tokens_ + rhs.tokenCount_; ++t) + nameBufferSize += t->length; + + tokenCount_ = rhs.tokenCount_ + extraToken; + tokens_ = static_cast<Token *>(allocator_->Malloc(tokenCount_ * sizeof(Token) + (nameBufferSize + extraNameBufferSize) * sizeof(Ch))); + nameBuffer_ = reinterpret_cast<Ch *>(tokens_ + tokenCount_); + if (rhs.tokenCount_ > 0) { + std::memcpy(tokens_, rhs.tokens_, rhs.tokenCount_ * sizeof(Token)); + } + if (nameBufferSize > 0) { + std::memcpy(nameBuffer_, rhs.nameBuffer_, nameBufferSize * sizeof(Ch)); + } + + // Adjust pointers to name buffer + std::ptrdiff_t diff = nameBuffer_ - rhs.nameBuffer_; + for (Token *t = tokens_; t != tokens_ + rhs.tokenCount_; ++t) + t->name += diff; + + return nameBuffer_ + nameBufferSize; + } + + //! Check whether a character should be percent-encoded. + /*! + According to RFC 3986 2.3 Unreserved Characters. + \param c The character (code unit) to be tested. + */ + bool NeedPercentEncode(Ch c) const { + return !((c >= '0' && c <= '9') || (c >= 'A' && c <='Z') || (c >= 'a' && c <= 'z') || c == '-' || c == '.' || c == '_' || c =='~'); + } + + //! Parse a JSON String or its URI fragment representation into tokens. +#ifndef __clang__ // -Wdocumentation + /*! + \param source Either a JSON Pointer string, or its URI fragment representation. Not need to be null terminated. + \param length Length of the source string. + \note Source cannot be JSON String Representation of JSON Pointer, e.g. In "/\u0000", \u0000 will not be unescaped. + */ +#endif + void Parse(const Ch* source, size_t length) { + RAPIDJSON_ASSERT(source != NULL); + RAPIDJSON_ASSERT(nameBuffer_ == 0); + RAPIDJSON_ASSERT(tokens_ == 0); + + // Create own allocator if user did not supply. + if (!allocator_) + ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)(); + + // Count number of '/' as tokenCount + tokenCount_ = 0; + for (const Ch* s = source; s != source + length; s++) + if (*s == '/') + tokenCount_++; + + Token* token = tokens_ = static_cast<Token *>(allocator_->Malloc(tokenCount_ * sizeof(Token) + length * sizeof(Ch))); + Ch* name = nameBuffer_ = reinterpret_cast<Ch *>(tokens_ + tokenCount_); + size_t i = 0; + + // Detect if it is a URI fragment + bool uriFragment = false; + if (source[i] == '#') { + uriFragment = true; + i++; + } + + if (i != length && source[i] != '/') { + parseErrorCode_ = kPointerParseErrorTokenMustBeginWithSolidus; + goto error; + } + + while (i < length) { + RAPIDJSON_ASSERT(source[i] == '/'); + i++; // consumes '/' + + token->name = name; + bool isNumber = true; + + while (i < length && source[i] != '/') { + Ch c = source[i]; + if (uriFragment) { + // Decoding percent-encoding for URI fragment + if (c == '%') { + PercentDecodeStream is(&source[i], source + length); + GenericInsituStringStream<EncodingType> os(name); + Ch* begin = os.PutBegin(); + if (!Transcoder<UTF8<>, EncodingType>().Validate(is, os) || !is.IsValid()) { + parseErrorCode_ = kPointerParseErrorInvalidPercentEncoding; + goto error; + } + size_t len = os.PutEnd(begin); + i += is.Tell() - 1; + if (len == 1) + c = *name; + else { + name += len; + isNumber = false; + i++; + continue; + } + } + else if (NeedPercentEncode(c)) { + parseErrorCode_ = kPointerParseErrorCharacterMustPercentEncode; + goto error; + } + } + + i++; + + // Escaping "~0" -> '~', "~1" -> '/' + if (c == '~') { + if (i < length) { + c = source[i]; + if (c == '0') c = '~'; + else if (c == '1') c = '/'; + else { + parseErrorCode_ = kPointerParseErrorInvalidEscape; + goto error; + } + i++; + } + else { + parseErrorCode_ = kPointerParseErrorInvalidEscape; + goto error; + } + } + + // First check for index: all of characters are digit + if (c < '0' || c > '9') + isNumber = false; + + *name++ = c; + } + token->length = static_cast<SizeType>(name - token->name); + if (token->length == 0) + isNumber = false; + *name++ = '\0'; // Null terminator + + // Second check for index: more than one digit cannot have leading zero + if (isNumber && token->length > 1 && token->name[0] == '0') + isNumber = false; + + // String to SizeType conversion + SizeType n = 0; + if (isNumber) { + for (size_t j = 0; j < token->length; j++) { + SizeType m = n * 10 + static_cast<SizeType>(token->name[j] - '0'); + if (m < n) { // overflow detection + isNumber = false; + break; + } + n = m; + } + } + + token->index = isNumber ? n : kPointerInvalidIndex; + token++; + } + + RAPIDJSON_ASSERT(name <= nameBuffer_ + length); // Should not overflow buffer + parseErrorCode_ = kPointerParseErrorNone; + return; + + error: + Allocator::Free(tokens_); + nameBuffer_ = 0; + tokens_ = 0; + tokenCount_ = 0; + parseErrorOffset_ = i; + return; + } + + //! Stringify to string or URI fragment representation. + /*! + \tparam uriFragment True for stringifying to URI fragment representation. False for string representation. + \tparam OutputStream type of output stream. + \param os The output stream. + */ + template<bool uriFragment, typename OutputStream> + bool Stringify(OutputStream& os) const { + RAPIDJSON_ASSERT(IsValid()); + + if (uriFragment) + os.Put('#'); + + for (Token *t = tokens_; t != tokens_ + tokenCount_; ++t) { + os.Put('/'); + for (size_t j = 0; j < t->length; j++) { + Ch c = t->name[j]; + if (c == '~') { + os.Put('~'); + os.Put('0'); + } + else if (c == '/') { + os.Put('~'); + os.Put('1'); + } + else if (uriFragment && NeedPercentEncode(c)) { + // Transcode to UTF8 sequence + GenericStringStream<typename ValueType::EncodingType> source(&t->name[j]); + PercentEncodeStream<OutputStream> target(os); + if (!Transcoder<EncodingType, UTF8<> >().Validate(source, target)) + return false; + j += source.Tell() - 1; + } + else + os.Put(c); + } + } + return true; + } + + //! A helper stream for decoding a percent-encoded sequence into code unit. + /*! + This stream decodes %XY triplet into code unit (0-255). + If it encounters invalid characters, it sets output code unit as 0 and + mark invalid, and to be checked by IsValid(). + */ + class PercentDecodeStream { + public: + typedef typename ValueType::Ch Ch; + + //! Constructor + /*! + \param source Start of the stream + \param end Past-the-end of the stream. + */ + PercentDecodeStream(const Ch* source, const Ch* end) : src_(source), head_(source), end_(end), valid_(true) {} + + Ch Take() { + if (*src_ != '%' || src_ + 3 > end_) { // %XY triplet + valid_ = false; + return 0; + } + src_++; + Ch c = 0; + for (int j = 0; j < 2; j++) { + c = static_cast<Ch>(c << 4); + Ch h = *src_; + if (h >= '0' && h <= '9') c = static_cast<Ch>(c + h - '0'); + else if (h >= 'A' && h <= 'F') c = static_cast<Ch>(c + h - 'A' + 10); + else if (h >= 'a' && h <= 'f') c = static_cast<Ch>(c + h - 'a' + 10); + else { + valid_ = false; + return 0; + } + src_++; + } + return c; + } + + size_t Tell() const { return static_cast<size_t>(src_ - head_); } + bool IsValid() const { return valid_; } + + private: + const Ch* src_; //!< Current read position. + const Ch* head_; //!< Original head of the string. + const Ch* end_; //!< Past-the-end position. + bool valid_; //!< Whether the parsing is valid. + }; + + //! A helper stream to encode character (UTF-8 code unit) into percent-encoded sequence. + template <typename OutputStream> + class PercentEncodeStream { + public: + PercentEncodeStream(OutputStream& os) : os_(os) {} + void Put(char c) { // UTF-8 must be byte + unsigned char u = static_cast<unsigned char>(c); + static const char hexDigits[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; + os_.Put('%'); + os_.Put(static_cast<typename OutputStream::Ch>(hexDigits[u >> 4])); + os_.Put(static_cast<typename OutputStream::Ch>(hexDigits[u & 15])); + } + private: + OutputStream& os_; + }; + + Allocator* allocator_; //!< The current allocator. It is either user-supplied or equal to ownAllocator_. + Allocator* ownAllocator_; //!< Allocator owned by this Pointer. + Ch* nameBuffer_; //!< A buffer containing all names in tokens. + Token* tokens_; //!< A list of tokens. + size_t tokenCount_; //!< Number of tokens in tokens_. + size_t parseErrorOffset_; //!< Offset in code unit when parsing fail. + PointerParseErrorCode parseErrorCode_; //!< Parsing error code. +}; + +//! GenericPointer for Value (UTF-8, default allocator). +typedef GenericPointer<Value> Pointer; + +//!@name Helper functions for GenericPointer +//@{ + +////////////////////////////////////////////////////////////////////////////// + +template <typename T> +typename T::ValueType& CreateValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, typename T::AllocatorType& a) { + return pointer.Create(root, a); +} + +template <typename T, typename CharType, size_t N> +typename T::ValueType& CreateValueByPointer(T& root, const CharType(&source)[N], typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).Create(root, a); +} + +// No allocator parameter + +template <typename DocumentType> +typename DocumentType::ValueType& CreateValueByPointer(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer) { + return pointer.Create(document); +} + +template <typename DocumentType, typename CharType, size_t N> +typename DocumentType::ValueType& CreateValueByPointer(DocumentType& document, const CharType(&source)[N]) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).Create(document); +} + +////////////////////////////////////////////////////////////////////////////// + +template <typename T> +typename T::ValueType* GetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, size_t* unresolvedTokenIndex = 0) { + return pointer.Get(root, unresolvedTokenIndex); +} + +template <typename T> +const typename T::ValueType* GetValueByPointer(const T& root, const GenericPointer<typename T::ValueType>& pointer, size_t* unresolvedTokenIndex = 0) { + return pointer.Get(root, unresolvedTokenIndex); +} + +template <typename T, typename CharType, size_t N> +typename T::ValueType* GetValueByPointer(T& root, const CharType (&source)[N], size_t* unresolvedTokenIndex = 0) { + return GenericPointer<typename T::ValueType>(source, N - 1).Get(root, unresolvedTokenIndex); +} + +template <typename T, typename CharType, size_t N> +const typename T::ValueType* GetValueByPointer(const T& root, const CharType(&source)[N], size_t* unresolvedTokenIndex = 0) { + return GenericPointer<typename T::ValueType>(source, N - 1).Get(root, unresolvedTokenIndex); +} + +////////////////////////////////////////////////////////////////////////////// + +template <typename T> +typename T::ValueType& GetValueByPointerWithDefault(T& root, const GenericPointer<typename T::ValueType>& pointer, const typename T::ValueType& defaultValue, typename T::AllocatorType& a) { + return pointer.GetWithDefault(root, defaultValue, a); +} + +template <typename T> +typename T::ValueType& GetValueByPointerWithDefault(T& root, const GenericPointer<typename T::ValueType>& pointer, const typename T::Ch* defaultValue, typename T::AllocatorType& a) { + return pointer.GetWithDefault(root, defaultValue, a); +} + +#if RAPIDJSON_HAS_STDSTRING +template <typename T> +typename T::ValueType& GetValueByPointerWithDefault(T& root, const GenericPointer<typename T::ValueType>& pointer, const std::basic_string<typename T::Ch>& defaultValue, typename T::AllocatorType& a) { + return pointer.GetWithDefault(root, defaultValue, a); +} +#endif + +template <typename T, typename T2> +RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename T::ValueType&)) +GetValueByPointerWithDefault(T& root, const GenericPointer<typename T::ValueType>& pointer, T2 defaultValue, typename T::AllocatorType& a) { + return pointer.GetWithDefault(root, defaultValue, a); +} + +template <typename T, typename CharType, size_t N> +typename T::ValueType& GetValueByPointerWithDefault(T& root, const CharType(&source)[N], const typename T::ValueType& defaultValue, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).GetWithDefault(root, defaultValue, a); +} + +template <typename T, typename CharType, size_t N> +typename T::ValueType& GetValueByPointerWithDefault(T& root, const CharType(&source)[N], const typename T::Ch* defaultValue, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).GetWithDefault(root, defaultValue, a); +} + +#if RAPIDJSON_HAS_STDSTRING +template <typename T, typename CharType, size_t N> +typename T::ValueType& GetValueByPointerWithDefault(T& root, const CharType(&source)[N], const std::basic_string<typename T::Ch>& defaultValue, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).GetWithDefault(root, defaultValue, a); +} +#endif + +template <typename T, typename CharType, size_t N, typename T2> +RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename T::ValueType&)) +GetValueByPointerWithDefault(T& root, const CharType(&source)[N], T2 defaultValue, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).GetWithDefault(root, defaultValue, a); +} + +// No allocator parameter + +template <typename DocumentType> +typename DocumentType::ValueType& GetValueByPointerWithDefault(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, const typename DocumentType::ValueType& defaultValue) { + return pointer.GetWithDefault(document, defaultValue); +} + +template <typename DocumentType> +typename DocumentType::ValueType& GetValueByPointerWithDefault(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, const typename DocumentType::Ch* defaultValue) { + return pointer.GetWithDefault(document, defaultValue); +} + +#if RAPIDJSON_HAS_STDSTRING +template <typename DocumentType> +typename DocumentType::ValueType& GetValueByPointerWithDefault(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, const std::basic_string<typename DocumentType::Ch>& defaultValue) { + return pointer.GetWithDefault(document, defaultValue); +} +#endif + +template <typename DocumentType, typename T2> +RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename DocumentType::ValueType&)) +GetValueByPointerWithDefault(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, T2 defaultValue) { + return pointer.GetWithDefault(document, defaultValue); +} + +template <typename DocumentType, typename CharType, size_t N> +typename DocumentType::ValueType& GetValueByPointerWithDefault(DocumentType& document, const CharType(&source)[N], const typename DocumentType::ValueType& defaultValue) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).GetWithDefault(document, defaultValue); +} + +template <typename DocumentType, typename CharType, size_t N> +typename DocumentType::ValueType& GetValueByPointerWithDefault(DocumentType& document, const CharType(&source)[N], const typename DocumentType::Ch* defaultValue) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).GetWithDefault(document, defaultValue); +} + +#if RAPIDJSON_HAS_STDSTRING +template <typename DocumentType, typename CharType, size_t N> +typename DocumentType::ValueType& GetValueByPointerWithDefault(DocumentType& document, const CharType(&source)[N], const std::basic_string<typename DocumentType::Ch>& defaultValue) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).GetWithDefault(document, defaultValue); +} +#endif + +template <typename DocumentType, typename CharType, size_t N, typename T2> +RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename DocumentType::ValueType&)) +GetValueByPointerWithDefault(DocumentType& document, const CharType(&source)[N], T2 defaultValue) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).GetWithDefault(document, defaultValue); +} + +////////////////////////////////////////////////////////////////////////////// + +template <typename T> +typename T::ValueType& SetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, typename T::ValueType& value, typename T::AllocatorType& a) { + return pointer.Set(root, value, a); +} + +template <typename T> +typename T::ValueType& SetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, const typename T::ValueType& value, typename T::AllocatorType& a) { + return pointer.Set(root, value, a); +} + +template <typename T> +typename T::ValueType& SetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, const typename T::Ch* value, typename T::AllocatorType& a) { + return pointer.Set(root, value, a); +} + +#if RAPIDJSON_HAS_STDSTRING +template <typename T> +typename T::ValueType& SetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, const std::basic_string<typename T::Ch>& value, typename T::AllocatorType& a) { + return pointer.Set(root, value, a); +} +#endif + +template <typename T, typename T2> +RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename T::ValueType&)) +SetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, T2 value, typename T::AllocatorType& a) { + return pointer.Set(root, value, a); +} + +template <typename T, typename CharType, size_t N> +typename T::ValueType& SetValueByPointer(T& root, const CharType(&source)[N], typename T::ValueType& value, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).Set(root, value, a); +} + +template <typename T, typename CharType, size_t N> +typename T::ValueType& SetValueByPointer(T& root, const CharType(&source)[N], const typename T::ValueType& value, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).Set(root, value, a); +} + +template <typename T, typename CharType, size_t N> +typename T::ValueType& SetValueByPointer(T& root, const CharType(&source)[N], const typename T::Ch* value, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).Set(root, value, a); +} + +#if RAPIDJSON_HAS_STDSTRING +template <typename T, typename CharType, size_t N> +typename T::ValueType& SetValueByPointer(T& root, const CharType(&source)[N], const std::basic_string<typename T::Ch>& value, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).Set(root, value, a); +} +#endif + +template <typename T, typename CharType, size_t N, typename T2> +RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename T::ValueType&)) +SetValueByPointer(T& root, const CharType(&source)[N], T2 value, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).Set(root, value, a); +} + +// No allocator parameter + +template <typename DocumentType> +typename DocumentType::ValueType& SetValueByPointer(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, typename DocumentType::ValueType& value) { + return pointer.Set(document, value); +} + +template <typename DocumentType> +typename DocumentType::ValueType& SetValueByPointer(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, const typename DocumentType::ValueType& value) { + return pointer.Set(document, value); +} + +template <typename DocumentType> +typename DocumentType::ValueType& SetValueByPointer(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, const typename DocumentType::Ch* value) { + return pointer.Set(document, value); +} + +#if RAPIDJSON_HAS_STDSTRING +template <typename DocumentType> +typename DocumentType::ValueType& SetValueByPointer(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, const std::basic_string<typename DocumentType::Ch>& value) { + return pointer.Set(document, value); +} +#endif + +template <typename DocumentType, typename T2> +RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename DocumentType::ValueType&)) +SetValueByPointer(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, T2 value) { + return pointer.Set(document, value); +} + +template <typename DocumentType, typename CharType, size_t N> +typename DocumentType::ValueType& SetValueByPointer(DocumentType& document, const CharType(&source)[N], typename DocumentType::ValueType& value) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).Set(document, value); +} + +template <typename DocumentType, typename CharType, size_t N> +typename DocumentType::ValueType& SetValueByPointer(DocumentType& document, const CharType(&source)[N], const typename DocumentType::ValueType& value) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).Set(document, value); +} + +template <typename DocumentType, typename CharType, size_t N> +typename DocumentType::ValueType& SetValueByPointer(DocumentType& document, const CharType(&source)[N], const typename DocumentType::Ch* value) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).Set(document, value); +} + +#if RAPIDJSON_HAS_STDSTRING +template <typename DocumentType, typename CharType, size_t N> +typename DocumentType::ValueType& SetValueByPointer(DocumentType& document, const CharType(&source)[N], const std::basic_string<typename DocumentType::Ch>& value) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).Set(document, value); +} +#endif + +template <typename DocumentType, typename CharType, size_t N, typename T2> +RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename DocumentType::ValueType&)) +SetValueByPointer(DocumentType& document, const CharType(&source)[N], T2 value) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).Set(document, value); +} + +////////////////////////////////////////////////////////////////////////////// + +template <typename T> +typename T::ValueType& SwapValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, typename T::ValueType& value, typename T::AllocatorType& a) { + return pointer.Swap(root, value, a); +} + +template <typename T, typename CharType, size_t N> +typename T::ValueType& SwapValueByPointer(T& root, const CharType(&source)[N], typename T::ValueType& value, typename T::AllocatorType& a) { + return GenericPointer<typename T::ValueType>(source, N - 1).Swap(root, value, a); +} + +template <typename DocumentType> +typename DocumentType::ValueType& SwapValueByPointer(DocumentType& document, const GenericPointer<typename DocumentType::ValueType>& pointer, typename DocumentType::ValueType& value) { + return pointer.Swap(document, value); +} + +template <typename DocumentType, typename CharType, size_t N> +typename DocumentType::ValueType& SwapValueByPointer(DocumentType& document, const CharType(&source)[N], typename DocumentType::ValueType& value) { + return GenericPointer<typename DocumentType::ValueType>(source, N - 1).Swap(document, value); +} + +////////////////////////////////////////////////////////////////////////////// + +template <typename T> +bool EraseValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer) { + return pointer.Erase(root); +} + +template <typename T, typename CharType, size_t N> +bool EraseValueByPointer(T& root, const CharType(&source)[N]) { + return GenericPointer<typename T::ValueType>(source, N - 1).Erase(root); +} + +//@} + +RAPIDJSON_NAMESPACE_END + +#if defined(__clang__) || defined(_MSC_VER) +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_POINTER_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_prettywriter.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_prettywriter.h new file mode 100644 index 00000000..d353faa7 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_prettywriter.h @@ -0,0 +1,277 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_PRETTYWRITER_H_ +#define RAPIDJSON_PRETTYWRITER_H_ + +#include "lottie_rapidjson_writer.h" + +#ifdef __GNUC__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +#endif + +#if defined(__clang__) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(c++98-compat) +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +//! Combination of PrettyWriter format flags. +/*! \see PrettyWriter::SetFormatOptions + */ +enum PrettyFormatOptions { + kFormatDefault = 0, //!< Default pretty formatting. + kFormatSingleLineArray = 1 //!< Format arrays on a single line. +}; + +//! Writer with indentation and spacing. +/*! + \tparam OutputStream Type of output os. + \tparam SourceEncoding Encoding of source string. + \tparam TargetEncoding Encoding of output stream. + \tparam StackAllocator Type of allocator for allocating memory of stack. +*/ +template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator, unsigned writeFlags = kWriteDefaultFlags> +class PrettyWriter : public Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator, writeFlags> { +public: + typedef Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator, writeFlags> Base; + typedef typename Base::Ch Ch; + + //! Constructor + /*! \param os Output stream. + \param allocator User supplied allocator. If it is null, it will create a private one. + \param levelDepth Initial capacity of stack. + */ + explicit PrettyWriter(OutputStream& os, StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) : + Base(os, allocator, levelDepth), indentChar_(' '), indentCharCount_(4), formatOptions_(kFormatDefault) {} + + + explicit PrettyWriter(StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) : + Base(allocator, levelDepth), indentChar_(' '), indentCharCount_(4), formatOptions_(kFormatDefault) {} + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + PrettyWriter(PrettyWriter&& rhs) : + Base(std::forward<PrettyWriter>(rhs)), indentChar_(rhs.indentChar_), indentCharCount_(rhs.indentCharCount_), formatOptions_(rhs.formatOptions_) {} +#endif + + //! Set custom indentation. + /*! \param indentChar Character for indentation. Must be whitespace character (' ', '\\t', '\\n', '\\r'). + \param indentCharCount Number of indent characters for each indentation level. + \note The default indentation is 4 spaces. + */ + PrettyWriter& SetIndent(Ch indentChar, unsigned indentCharCount) { + RAPIDJSON_ASSERT(indentChar == ' ' || indentChar == '\t' || indentChar == '\n' || indentChar == '\r'); + indentChar_ = indentChar; + indentCharCount_ = indentCharCount; + return *this; + } + + //! Set pretty writer formatting options. + /*! \param options Formatting options. + */ + PrettyWriter& SetFormatOptions(PrettyFormatOptions options) { + formatOptions_ = options; + return *this; + } + + /*! @name Implementation of Handler + \see Handler + */ + //@{ + + bool Null() { PrettyPrefix(kNullType); return Base::EndValue(Base::WriteNull()); } + bool Bool(bool b) { PrettyPrefix(b ? kTrueType : kFalseType); return Base::EndValue(Base::WriteBool(b)); } + bool Int(int i) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteInt(i)); } + bool Uint(unsigned u) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteUint(u)); } + bool Int64(int64_t i64) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteInt64(i64)); } + bool Uint64(uint64_t u64) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteUint64(u64)); } + bool Double(double d) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteDouble(d)); } + + bool RawNumber(const Ch* str, SizeType length, bool copy = false) { + RAPIDJSON_ASSERT(str != 0); + (void)copy; + PrettyPrefix(kNumberType); + return Base::EndValue(Base::WriteString(str, length)); + } + + bool String(const Ch* str, SizeType length, bool copy = false) { + RAPIDJSON_ASSERT(str != 0); + (void)copy; + PrettyPrefix(kStringType); + return Base::EndValue(Base::WriteString(str, length)); + } + +#if RAPIDJSON_HAS_STDSTRING + bool String(const std::basic_string<Ch>& str) { + return String(str.data(), SizeType(str.size())); + } +#endif + + bool StartObject() { + PrettyPrefix(kObjectType); + new (Base::level_stack_.template Push<typename Base::Level>()) typename Base::Level(false); + return Base::WriteStartObject(); + } + + bool Key(const Ch* str, SizeType length, bool copy = false) { return String(str, length, copy); } + +#if RAPIDJSON_HAS_STDSTRING + bool Key(const std::basic_string<Ch>& str) { + return Key(str.data(), SizeType(str.size())); + } +#endif + + bool EndObject(SizeType memberCount = 0) { + (void)memberCount; + RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level)); // not inside an Object + RAPIDJSON_ASSERT(!Base::level_stack_.template Top<typename Base::Level>()->inArray); // currently inside an Array, not Object + RAPIDJSON_ASSERT(0 == Base::level_stack_.template Top<typename Base::Level>()->valueCount % 2); // Object has a Key without a Value + + bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0; + + if (!empty) { + Base::os_->Put('\n'); + WriteIndent(); + } + bool ret = Base::EndValue(Base::WriteEndObject()); + (void)ret; + RAPIDJSON_ASSERT(ret == true); + if (Base::level_stack_.Empty()) // end of json text + Base::Flush(); + return true; + } + + bool StartArray() { + PrettyPrefix(kArrayType); + new (Base::level_stack_.template Push<typename Base::Level>()) typename Base::Level(true); + return Base::WriteStartArray(); + } + + bool EndArray(SizeType memberCount = 0) { + (void)memberCount; + RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level)); + RAPIDJSON_ASSERT(Base::level_stack_.template Top<typename Base::Level>()->inArray); + bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0; + + if (!empty && !(formatOptions_ & kFormatSingleLineArray)) { + Base::os_->Put('\n'); + WriteIndent(); + } + bool ret = Base::EndValue(Base::WriteEndArray()); + (void)ret; + RAPIDJSON_ASSERT(ret == true); + if (Base::level_stack_.Empty()) // end of json text + Base::Flush(); + return true; + } + + //@} + + /*! @name Convenience extensions */ + //@{ + + //! Simpler but slower overload. + bool String(const Ch* str) { return String(str, internal::StrLen(str)); } + bool Key(const Ch* str) { return Key(str, internal::StrLen(str)); } + + //@} + + //! Write a raw JSON value. + /*! + For user to write a stringified JSON as a value. + + \param json A well-formed JSON value. It should not contain null character within [0, length - 1] range. + \param length Length of the json. + \param type Type of the root of json. + \note When using PrettyWriter::RawValue(), the result json may not be indented correctly. + */ + bool RawValue(const Ch* json, size_t length, Type type) { + RAPIDJSON_ASSERT(json != 0); + PrettyPrefix(type); + return Base::EndValue(Base::WriteRawValue(json, length)); + } + +protected: + void PrettyPrefix(Type type) { + (void)type; + if (Base::level_stack_.GetSize() != 0) { // this value is not at root + typename Base::Level* level = Base::level_stack_.template Top<typename Base::Level>(); + + if (level->inArray) { + if (level->valueCount > 0) { + Base::os_->Put(','); // add comma if it is not the first element in array + if (formatOptions_ & kFormatSingleLineArray) + Base::os_->Put(' '); + } + + if (!(formatOptions_ & kFormatSingleLineArray)) { + Base::os_->Put('\n'); + WriteIndent(); + } + } + else { // in object + if (level->valueCount > 0) { + if (level->valueCount % 2 == 0) { + Base::os_->Put(','); + Base::os_->Put('\n'); + } + else { + Base::os_->Put(':'); + Base::os_->Put(' '); + } + } + else + Base::os_->Put('\n'); + + if (level->valueCount % 2 == 0) + WriteIndent(); + } + if (!level->inArray && level->valueCount % 2 == 0) + RAPIDJSON_ASSERT(type == kStringType); // if it's in object, then even number should be a name + level->valueCount++; + } + else { + RAPIDJSON_ASSERT(!Base::hasRoot_); // Should only has one and only one root. + Base::hasRoot_ = true; + } + } + + void WriteIndent() { + size_t count = (Base::level_stack_.GetSize() / sizeof(typename Base::Level)) * indentCharCount_; + PutN(*Base::os_, static_cast<typename OutputStream::Ch>(indentChar_), count); + } + + Ch indentChar_; + unsigned indentCharCount_; + PrettyFormatOptions formatOptions_; + +private: + // Prohibit copy constructor & assignment operator. + PrettyWriter(const PrettyWriter&); + PrettyWriter& operator=(const PrettyWriter&); +}; + +RAPIDJSON_NAMESPACE_END + +#if defined(__clang__) +RAPIDJSON_DIAG_POP +#endif + +#ifdef __GNUC__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_RAPIDJSON_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_rapidjson.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_rapidjson.h new file mode 100644 index 00000000..f1fd5ba2 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_rapidjson.h @@ -0,0 +1,692 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_RAPIDJSON_H_ +#define RAPIDJSON_RAPIDJSON_H_ + +/*!\file rapidjson.h + \brief common definitions and configuration + + \see RAPIDJSON_CONFIG + */ + +/*! \defgroup RAPIDJSON_CONFIG RapidJSON configuration + \brief Configuration macros for library features + + Some RapidJSON features are configurable to adapt the library to a wide + variety of platforms, environments and usage scenarios. Most of the + features can be configured in terms of overridden or predefined + preprocessor macros at compile-time. + + Some additional customization is available in the \ref RAPIDJSON_ERRORS APIs. + + \note These macros should be given on the compiler command-line + (where applicable) to avoid inconsistent values when compiling + different translation units of a single application. + */ + +#include <cstdlib> // malloc(), realloc(), free(), size_t +#include <cstring> // memset(), memcpy(), memmove(), memcmp() + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_VERSION_STRING +// +// ALWAYS synchronize the following 3 macros with corresponding variables in /CMakeLists.txt. +// + +//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN +// token stringification +#define RAPIDJSON_STRINGIFY(x) RAPIDJSON_DO_STRINGIFY(x) +#define RAPIDJSON_DO_STRINGIFY(x) #x + +// token concatenation +#define RAPIDJSON_JOIN(X, Y) RAPIDJSON_DO_JOIN(X, Y) +#define RAPIDJSON_DO_JOIN(X, Y) RAPIDJSON_DO_JOIN2(X, Y) +#define RAPIDJSON_DO_JOIN2(X, Y) X##Y +//!@endcond + +/*! \def RAPIDJSON_MAJOR_VERSION + \ingroup RAPIDJSON_CONFIG + \brief Major version of RapidJSON in integer. +*/ +/*! \def RAPIDJSON_MINOR_VERSION + \ingroup RAPIDJSON_CONFIG + \brief Minor version of RapidJSON in integer. +*/ +/*! \def RAPIDJSON_PATCH_VERSION + \ingroup RAPIDJSON_CONFIG + \brief Patch version of RapidJSON in integer. +*/ +/*! \def RAPIDJSON_VERSION_STRING + \ingroup RAPIDJSON_CONFIG + \brief Version of RapidJSON in "<major>.<minor>.<patch>" string format. +*/ +#define RAPIDJSON_MAJOR_VERSION 1 +#define RAPIDJSON_MINOR_VERSION 1 +#define RAPIDJSON_PATCH_VERSION 0 +#define RAPIDJSON_VERSION_STRING \ + RAPIDJSON_STRINGIFY(RAPIDJSON_MAJOR_VERSION.RAPIDJSON_MINOR_VERSION.RAPIDJSON_PATCH_VERSION) + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_NAMESPACE_(BEGIN|END) +/*! \def RAPIDJSON_NAMESPACE + \ingroup RAPIDJSON_CONFIG + \brief provide custom rapidjson namespace + + In order to avoid symbol clashes and/or "One Definition Rule" errors + between multiple inclusions of (different versions of) RapidJSON in + a single binary, users can customize the name of the main RapidJSON + namespace. + + In case of a single nesting level, defining \c RAPIDJSON_NAMESPACE + to a custom name (e.g. \c MyRapidJSON) is sufficient. If multiple + levels are needed, both \ref RAPIDJSON_NAMESPACE_BEGIN and \ref + RAPIDJSON_NAMESPACE_END need to be defined as well: + + \code + // in some .cpp file + #define RAPIDJSON_NAMESPACE my::rapidjson + #define RAPIDJSON_NAMESPACE_BEGIN namespace my { namespace rapidjson { + #define RAPIDJSON_NAMESPACE_END } } + #include "rapidjson/..." + \endcode + + \see rapidjson + */ +/*! \def RAPIDJSON_NAMESPACE_BEGIN + \ingroup RAPIDJSON_CONFIG + \brief provide custom rapidjson namespace (opening expression) + \see RAPIDJSON_NAMESPACE +*/ +/*! \def RAPIDJSON_NAMESPACE_END + \ingroup RAPIDJSON_CONFIG + \brief provide custom rapidjson namespace (closing expression) + \see RAPIDJSON_NAMESPACE +*/ +#ifndef RAPIDJSON_NAMESPACE +#define RAPIDJSON_NAMESPACE rapidjson +#endif +#ifndef RAPIDJSON_NAMESPACE_BEGIN +#define RAPIDJSON_NAMESPACE_BEGIN namespace RAPIDJSON_NAMESPACE { +#endif +#ifndef RAPIDJSON_NAMESPACE_END +#define RAPIDJSON_NAMESPACE_END } +#endif + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_HAS_STDSTRING + +#ifndef RAPIDJSON_HAS_STDSTRING +#ifdef RAPIDJSON_DOXYGEN_RUNNING +#define RAPIDJSON_HAS_STDSTRING 1 // force generation of documentation +#else +#define RAPIDJSON_HAS_STDSTRING 0 // no std::string support by default +#endif +/*! \def RAPIDJSON_HAS_STDSTRING + \ingroup RAPIDJSON_CONFIG + \brief Enable RapidJSON support for \c std::string + + By defining this preprocessor symbol to \c 1, several convenience functions for using + \ref rapidjson::GenericValue with \c std::string are enabled, especially + for construction and comparison. + + \hideinitializer +*/ +#endif // !defined(RAPIDJSON_HAS_STDSTRING) + +#if RAPIDJSON_HAS_STDSTRING +#include <string> +#endif // RAPIDJSON_HAS_STDSTRING + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_NO_INT64DEFINE + +/*! \def RAPIDJSON_NO_INT64DEFINE + \ingroup RAPIDJSON_CONFIG + \brief Use external 64-bit integer types. + + RapidJSON requires the 64-bit integer types \c int64_t and \c uint64_t types + to be available at global scope. + + If users have their own definition, define RAPIDJSON_NO_INT64DEFINE to + prevent RapidJSON from defining its own types. +*/ +#ifndef RAPIDJSON_NO_INT64DEFINE +//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN +#if defined(_MSC_VER) && (_MSC_VER < 1800) // Visual Studio 2013 +#include "lottie_rapidjson_msinttypes_stdint.h" +#include "lottie_rapidjson_msinttypes_inttypes.h" +#else +// Other compilers should have this. +#include <stdint.h> +#include <inttypes.h> +#endif +//!@endcond +#ifdef RAPIDJSON_DOXYGEN_RUNNING +#define RAPIDJSON_NO_INT64DEFINE +#endif +#endif // RAPIDJSON_NO_INT64TYPEDEF + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_FORCEINLINE + +#ifndef RAPIDJSON_FORCEINLINE +//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN +#if defined(_MSC_VER) && defined(NDEBUG) +#define RAPIDJSON_FORCEINLINE __forceinline +#elif defined(__GNUC__) && __GNUC__ >= 4 && defined(NDEBUG) +#define RAPIDJSON_FORCEINLINE __attribute__((always_inline)) +#else +#define RAPIDJSON_FORCEINLINE +#endif +//!@endcond +#endif // RAPIDJSON_FORCEINLINE + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_ENDIAN +#define RAPIDJSON_LITTLEENDIAN 0 //!< Little endian machine +#define RAPIDJSON_BIGENDIAN 1 //!< Big endian machine + +//! Endianness of the machine. +/*! + \def RAPIDJSON_ENDIAN + \ingroup RAPIDJSON_CONFIG + + GCC 4.6 provided macro for detecting endianness of the target machine. But other + compilers may not have this. User can define RAPIDJSON_ENDIAN to either + \ref RAPIDJSON_LITTLEENDIAN or \ref RAPIDJSON_BIGENDIAN. + + Default detection implemented with reference to + \li https://gcc.gnu.org/onlinedocs/gcc-4.6.0/cpp/Common-Predefined-Macros.html + \li http://www.boost.org/doc/libs/1_42_0/boost/detail/endian.hpp +*/ +#ifndef RAPIDJSON_ENDIAN +// Detect with GCC 4.6's macro +# ifdef __BYTE_ORDER__ +# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ +# define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN +# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +# define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN +# else +# error Unknown machine endianness detected. User needs to define RAPIDJSON_ENDIAN. +# endif // __BYTE_ORDER__ +// Detect with GLIBC's endian.h +# elif defined(__GLIBC__) +# include <endian.h> +# if (__BYTE_ORDER == __LITTLE_ENDIAN) +# define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN +# elif (__BYTE_ORDER == __BIG_ENDIAN) +# define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN +# else +# error Unknown machine endianness detected. User needs to define RAPIDJSON_ENDIAN. +# endif // __GLIBC__ +// Detect with _LITTLE_ENDIAN and _BIG_ENDIAN macro +# elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN) +# define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN +# elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN) +# define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN +// Detect with architecture macros +# elif defined(__sparc) || defined(__sparc__) || defined(_POWER) || defined(__powerpc__) || defined(__ppc__) || defined(__hpux) || defined(__hppa) || defined(_MIPSEB) || defined(_POWER) || defined(__s390__) +# define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN +# elif defined(__i386__) || defined(__alpha__) || defined(__ia64) || defined(__ia64__) || defined(_M_IX86) || defined(_M_IA64) || defined(_M_ALPHA) || defined(__amd64) || defined(__amd64__) || defined(_M_AMD64) || defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || defined(__bfin__) +# define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN +# elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64)) +# define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN +# elif defined(RAPIDJSON_DOXYGEN_RUNNING) +# define RAPIDJSON_ENDIAN +# else +# error Unknown machine endianness detected. User needs to define RAPIDJSON_ENDIAN. +# endif +#endif // RAPIDJSON_ENDIAN + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_64BIT + +//! Whether using 64-bit architecture +#ifndef RAPIDJSON_64BIT +#if defined(__LP64__) || (defined(__x86_64__) && defined(__ILP32__)) || defined(_WIN64) || defined(__EMSCRIPTEN__) +#define RAPIDJSON_64BIT 1 +#else +#define RAPIDJSON_64BIT 0 +#endif +#endif // RAPIDJSON_64BIT + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_ALIGN + +//! Data alignment of the machine. +/*! \ingroup RAPIDJSON_CONFIG + \param x pointer to align + + Some machines require strict data alignment. The default is 8 bytes. + User can customize by defining the RAPIDJSON_ALIGN function macro. +*/ +#ifndef RAPIDJSON_ALIGN +#define RAPIDJSON_ALIGN(x) (((x) + static_cast<size_t>(7u)) & ~static_cast<size_t>(7u)) +#endif + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_UINT64_C2 + +//! Construct a 64-bit literal by a pair of 32-bit integer. +/*! + 64-bit literal with or without ULL suffix is prone to compiler warnings. + UINT64_C() is C macro which cause compilation problems. + Use this macro to define 64-bit constants by a pair of 32-bit integer. +*/ +#ifndef RAPIDJSON_UINT64_C2 +#define RAPIDJSON_UINT64_C2(high32, low32) ((static_cast<uint64_t>(high32) << 32) | static_cast<uint64_t>(low32)) +#endif + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_48BITPOINTER_OPTIMIZATION + +//! Use only lower 48-bit address for some pointers. +/*! + \ingroup RAPIDJSON_CONFIG + + This optimization uses the fact that current X86-64 architecture only implement lower 48-bit virtual address. + The higher 16-bit can be used for storing other data. + \c GenericValue uses this optimization to reduce its size form 24 bytes to 16 bytes in 64-bit architecture. +*/ +#ifndef RAPIDJSON_48BITPOINTER_OPTIMIZATION +#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64) +#define RAPIDJSON_48BITPOINTER_OPTIMIZATION 1 +#else +#define RAPIDJSON_48BITPOINTER_OPTIMIZATION 0 +#endif +#endif // RAPIDJSON_48BITPOINTER_OPTIMIZATION + +#if RAPIDJSON_48BITPOINTER_OPTIMIZATION == 1 +#if RAPIDJSON_64BIT != 1 +#error RAPIDJSON_48BITPOINTER_OPTIMIZATION can only be set to 1 when RAPIDJSON_64BIT=1 +#endif +#define RAPIDJSON_SETPOINTER(type, p, x) (p = reinterpret_cast<type *>((reinterpret_cast<uintptr_t>(p) & static_cast<uintptr_t>(RAPIDJSON_UINT64_C2(0xFFFF0000, 0x00000000))) | reinterpret_cast<uintptr_t>(reinterpret_cast<const void*>(x)))) +#define RAPIDJSON_GETPOINTER(type, p) (reinterpret_cast<type *>(reinterpret_cast<uintptr_t>(p) & static_cast<uintptr_t>(RAPIDJSON_UINT64_C2(0x0000FFFF, 0xFFFFFFFF)))) +#else +#define RAPIDJSON_SETPOINTER(type, p, x) (p = (x)) +#define RAPIDJSON_GETPOINTER(type, p) (p) +#endif + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_SSE2/RAPIDJSON_SSE42/RAPIDJSON_NEON/RAPIDJSON_SIMD + +/*! \def RAPIDJSON_SIMD + \ingroup RAPIDJSON_CONFIG + \brief Enable SSE2/SSE4.2/Neon optimization. + + RapidJSON supports optimized implementations for some parsing operations + based on the SSE2, SSE4.2 or NEon SIMD extensions on modern Intel + or ARM compatible processors. + + To enable these optimizations, three different symbols can be defined; + \code + // Enable SSE2 optimization. + #define RAPIDJSON_SSE2 + + // Enable SSE4.2 optimization. + #define RAPIDJSON_SSE42 + \endcode + + // Enable ARM Neon optimization. + #define RAPIDJSON_NEON + \endcode + + \c RAPIDJSON_SSE42 takes precedence over SSE2, if both are defined. + + If any of these symbols is defined, RapidJSON defines the macro + \c RAPIDJSON_SIMD to indicate the availability of the optimized code. +*/ +#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42) \ + || defined(RAPIDJSON_NEON) || defined(RAPIDJSON_DOXYGEN_RUNNING) +#define RAPIDJSON_SIMD +#endif + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_NO_SIZETYPEDEFINE + +#ifndef RAPIDJSON_NO_SIZETYPEDEFINE +/*! \def RAPIDJSON_NO_SIZETYPEDEFINE + \ingroup RAPIDJSON_CONFIG + \brief User-provided \c SizeType definition. + + In order to avoid using 32-bit size types for indexing strings and arrays, + define this preprocessor symbol and provide the type rapidjson::SizeType + before including RapidJSON: + \code + #define RAPIDJSON_NO_SIZETYPEDEFINE + namespace rapidjson { typedef ::std::size_t SizeType; } + #include "rapidjson/..." + \endcode + + \see rapidjson::SizeType +*/ +#ifdef RAPIDJSON_DOXYGEN_RUNNING +#define RAPIDJSON_NO_SIZETYPEDEFINE +#endif +RAPIDJSON_NAMESPACE_BEGIN +//! Size type (for string lengths, array sizes, etc.) +/*! RapidJSON uses 32-bit array/string indices even on 64-bit platforms, + instead of using \c size_t. Users may override the SizeType by defining + \ref RAPIDJSON_NO_SIZETYPEDEFINE. +*/ +typedef unsigned SizeType; +RAPIDJSON_NAMESPACE_END +#endif + +// always import std::size_t to rapidjson namespace +RAPIDJSON_NAMESPACE_BEGIN +using std::size_t; +RAPIDJSON_NAMESPACE_END + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_ASSERT + +//! Assertion. +/*! \ingroup RAPIDJSON_CONFIG + By default, rapidjson uses C \c assert() for internal assertions. + User can override it by defining RAPIDJSON_ASSERT(x) macro. + + \note Parsing errors are handled and can be customized by the + \ref RAPIDJSON_ERRORS APIs. +*/ +#ifndef RAPIDJSON_ASSERT +#include <cassert> +#define RAPIDJSON_ASSERT(x) assert(x) +#endif // RAPIDJSON_ASSERT + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_STATIC_ASSERT + +// Prefer C++11 static_assert, if available +#ifndef RAPIDJSON_STATIC_ASSERT +#if __cplusplus >= 201103L || ( defined(_MSC_VER) && _MSC_VER >= 1800 ) +#define RAPIDJSON_STATIC_ASSERT(x) \ + static_assert(x, RAPIDJSON_STRINGIFY(x)) +#endif // C++11 +#endif // RAPIDJSON_STATIC_ASSERT + +// Adopt C++03 implementation from boost +#ifndef RAPIDJSON_STATIC_ASSERT +#ifndef __clang__ +//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN +#endif +RAPIDJSON_NAMESPACE_BEGIN +template <bool x> struct STATIC_ASSERTION_FAILURE; +template <> struct STATIC_ASSERTION_FAILURE<true> { enum { value = 1 }; }; +template <size_t x> struct StaticAssertTest {}; +RAPIDJSON_NAMESPACE_END + +#if defined(__GNUC__) || defined(__clang__) +#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE __attribute__((unused)) +#else +#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE +#endif +#ifndef __clang__ +//!@endcond +#endif + +/*! \def RAPIDJSON_STATIC_ASSERT + \brief (Internal) macro to check for conditions at compile-time + \param x compile-time condition + \hideinitializer + */ +#define RAPIDJSON_STATIC_ASSERT(x) \ + typedef ::RAPIDJSON_NAMESPACE::StaticAssertTest< \ + sizeof(::RAPIDJSON_NAMESPACE::STATIC_ASSERTION_FAILURE<bool(x) >)> \ + RAPIDJSON_JOIN(StaticAssertTypedef, __LINE__) RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE +#endif // RAPIDJSON_STATIC_ASSERT + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_LIKELY, RAPIDJSON_UNLIKELY + +//! Compiler branching hint for expression with high probability to be true. +/*! + \ingroup RAPIDJSON_CONFIG + \param x Boolean expression likely to be true. +*/ +#ifndef RAPIDJSON_LIKELY +#if defined(__GNUC__) || defined(__clang__) +#define RAPIDJSON_LIKELY(x) __builtin_expect(!!(x), 1) +#else +#define RAPIDJSON_LIKELY(x) (x) +#endif +#endif + +//! Compiler branching hint for expression with low probability to be true. +/*! + \ingroup RAPIDJSON_CONFIG + \param x Boolean expression unlikely to be true. +*/ +#ifndef RAPIDJSON_UNLIKELY +#if defined(__GNUC__) || defined(__clang__) +#define RAPIDJSON_UNLIKELY(x) __builtin_expect(!!(x), 0) +#else +#define RAPIDJSON_UNLIKELY(x) (x) +#endif +#endif + +/////////////////////////////////////////////////////////////////////////////// +// Helpers + +//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN + +#define RAPIDJSON_MULTILINEMACRO_BEGIN do { +#define RAPIDJSON_MULTILINEMACRO_END \ +} while((void)0, 0) + +// adopted from Boost +#define RAPIDJSON_VERSION_CODE(x,y,z) \ + (((x)*100000) + ((y)*100) + (z)) + +#if defined(__has_builtin) +#define RAPIDJSON_HAS_BUILTIN(x) __has_builtin(x) +#else +#define RAPIDJSON_HAS_BUILTIN(x) 0 +#endif + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_DIAG_PUSH/POP, RAPIDJSON_DIAG_OFF + +#if defined(__GNUC__) +#define RAPIDJSON_GNUC \ + RAPIDJSON_VERSION_CODE(__GNUC__,__GNUC_MINOR__,__GNUC_PATCHLEVEL__) +#endif + +#if defined(__clang__) || (defined(RAPIDJSON_GNUC) && RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,2,0)) + +#define RAPIDJSON_PRAGMA(x) _Pragma(RAPIDJSON_STRINGIFY(x)) +#define RAPIDJSON_DIAG_PRAGMA(x) RAPIDJSON_PRAGMA(GCC diagnostic x) +#define RAPIDJSON_DIAG_OFF(x) \ + RAPIDJSON_DIAG_PRAGMA(ignored RAPIDJSON_STRINGIFY(RAPIDJSON_JOIN(-W,x))) + +// push/pop support in Clang and GCC>=4.6 +#if defined(__clang__) || (defined(RAPIDJSON_GNUC) && RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,6,0)) +#define RAPIDJSON_DIAG_PUSH RAPIDJSON_DIAG_PRAGMA(push) +#define RAPIDJSON_DIAG_POP RAPIDJSON_DIAG_PRAGMA(pop) +#else // GCC >= 4.2, < 4.6 +#define RAPIDJSON_DIAG_PUSH /* ignored */ +#define RAPIDJSON_DIAG_POP /* ignored */ +#endif + +#elif defined(_MSC_VER) + +// pragma (MSVC specific) +#define RAPIDJSON_PRAGMA(x) __pragma(x) +#define RAPIDJSON_DIAG_PRAGMA(x) RAPIDJSON_PRAGMA(warning(x)) + +#define RAPIDJSON_DIAG_OFF(x) RAPIDJSON_DIAG_PRAGMA(disable: x) +#define RAPIDJSON_DIAG_PUSH RAPIDJSON_DIAG_PRAGMA(push) +#define RAPIDJSON_DIAG_POP RAPIDJSON_DIAG_PRAGMA(pop) + +#else + +#define RAPIDJSON_DIAG_OFF(x) /* ignored */ +#define RAPIDJSON_DIAG_PUSH /* ignored */ +#define RAPIDJSON_DIAG_POP /* ignored */ + +#endif // RAPIDJSON_DIAG_* + +/////////////////////////////////////////////////////////////////////////////// +// C++11 features + +#ifndef RAPIDJSON_HAS_CXX11_RVALUE_REFS +#if defined(__clang__) +#if __has_feature(cxx_rvalue_references) && \ + (defined(_MSC_VER) || defined(_LIBCPP_VERSION) || defined(__GLIBCXX__) && __GLIBCXX__ >= 20080306) +#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1 +#else +#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 0 +#endif +#elif (defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,3,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__)) || \ + (defined(_MSC_VER) && _MSC_VER >= 1600) || \ + (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x5140 && defined(__GXX_EXPERIMENTAL_CXX0X__)) + +#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1 +#else +#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 0 +#endif +#endif // RAPIDJSON_HAS_CXX11_RVALUE_REFS + +#ifndef RAPIDJSON_HAS_CXX11_NOEXCEPT +#if defined(__clang__) +#define RAPIDJSON_HAS_CXX11_NOEXCEPT __has_feature(cxx_noexcept) +#elif (defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,6,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__)) || \ + (defined(_MSC_VER) && _MSC_VER >= 1900) || \ + (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x5140 && defined(__GXX_EXPERIMENTAL_CXX0X__)) +#define RAPIDJSON_HAS_CXX11_NOEXCEPT 1 +#else +#define RAPIDJSON_HAS_CXX11_NOEXCEPT 0 +#endif +#endif +#if RAPIDJSON_HAS_CXX11_NOEXCEPT +#define RAPIDJSON_NOEXCEPT noexcept +#else +#define RAPIDJSON_NOEXCEPT /* noexcept */ +#endif // RAPIDJSON_HAS_CXX11_NOEXCEPT + +// no automatic detection, yet +#ifndef RAPIDJSON_HAS_CXX11_TYPETRAITS +#if (defined(_MSC_VER) && _MSC_VER >= 1700) +#define RAPIDJSON_HAS_CXX11_TYPETRAITS 1 +#else +#define RAPIDJSON_HAS_CXX11_TYPETRAITS 0 +#endif +#endif + +#ifndef RAPIDJSON_HAS_CXX11_RANGE_FOR +#if defined(__clang__) +#define RAPIDJSON_HAS_CXX11_RANGE_FOR __has_feature(cxx_range_for) +#elif (defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,6,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__)) || \ + (defined(_MSC_VER) && _MSC_VER >= 1700) || \ + (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x5140 && defined(__GXX_EXPERIMENTAL_CXX0X__)) +#define RAPIDJSON_HAS_CXX11_RANGE_FOR 1 +#else +#define RAPIDJSON_HAS_CXX11_RANGE_FOR 0 +#endif +#endif // RAPIDJSON_HAS_CXX11_RANGE_FOR + +/////////////////////////////////////////////////////////////////////////////// +// C++17 features + +#if defined(__has_cpp_attribute) +# if __has_cpp_attribute(fallthrough) +# define RAPIDJSON_DELIBERATE_FALLTHROUGH [[fallthrough]] +# else +# define RAPIDJSON_DELIBERATE_FALLTHROUGH +# endif +#else +# define RAPIDJSON_DELIBERATE_FALLTHROUGH +#endif + +//!@endcond + +//! Assertion (in non-throwing contexts). + /*! \ingroup RAPIDJSON_CONFIG + Some functions provide a \c noexcept guarantee, if the compiler supports it. + In these cases, the \ref RAPIDJSON_ASSERT macro cannot be overridden to + throw an exception. This macro adds a separate customization point for + such cases. + + Defaults to C \c assert() (as \ref RAPIDJSON_ASSERT), if \c noexcept is + supported, and to \ref RAPIDJSON_ASSERT otherwise. + */ + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_NOEXCEPT_ASSERT + +#ifndef RAPIDJSON_NOEXCEPT_ASSERT +#ifdef RAPIDJSON_ASSERT_THROWS +#if RAPIDJSON_HAS_CXX11_NOEXCEPT +#define RAPIDJSON_NOEXCEPT_ASSERT(x) +#else +#include <cassert> +#define RAPIDJSON_NOEXCEPT_ASSERT(x) assert(x) +#endif // RAPIDJSON_HAS_CXX11_NOEXCEPT +#else +#define RAPIDJSON_NOEXCEPT_ASSERT(x) RAPIDJSON_ASSERT(x) +#endif // RAPIDJSON_ASSERT_THROWS +#endif // RAPIDJSON_NOEXCEPT_ASSERT + +/////////////////////////////////////////////////////////////////////////////// +// malloc/realloc/free + +#ifndef RAPIDJSON_MALLOC +///! customization point for global \c malloc +#define RAPIDJSON_MALLOC(size) std::malloc(size) +#endif +#ifndef RAPIDJSON_REALLOC +///! customization point for global \c realloc +#define RAPIDJSON_REALLOC(ptr, new_size) std::realloc(ptr, new_size) +#endif +#ifndef RAPIDJSON_FREE +///! customization point for global \c free +#define RAPIDJSON_FREE(ptr) std::free(ptr) +#endif + +/////////////////////////////////////////////////////////////////////////////// +// new/delete + +#ifndef RAPIDJSON_NEW +///! customization point for global \c new +#define RAPIDJSON_NEW(TypeName) new TypeName +#endif +#ifndef RAPIDJSON_DELETE +///! customization point for global \c delete +#define RAPIDJSON_DELETE(x) delete x +#endif + +/////////////////////////////////////////////////////////////////////////////// +// Type + +/*! \namespace rapidjson + \brief main RapidJSON namespace + \see RAPIDJSON_NAMESPACE +*/ +RAPIDJSON_NAMESPACE_BEGIN + +//! Type of JSON value +enum Type { + kNullType = 0, //!< null + kFalseType = 1, //!< false + kTrueType = 2, //!< true + kObjectType = 3, //!< object + kArrayType = 4, //!< array + kStringType = 5, //!< string + kNumberType = 6 //!< number +}; + +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_RAPIDJSON_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_reader.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_reader.h new file mode 100644 index 00000000..caa783f9 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_reader.h @@ -0,0 +1,2244 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_READER_H_ +#define RAPIDJSON_READER_H_ + +/*! \file reader.h */ + +#include "lottie_rapidjson_allocators.h" +#include "lottie_rapidjson_stream.h" +#include "lottie_rapidjson_encodedstream.h" +#include "lottie_rapidjson_internal_clzll.h" +#include "lottie_rapidjson_internal_meta.h" +#include "lottie_rapidjson_internal_stack.h" +#include "lottie_rapidjson_internal_strtod.h" +#include <limits> + +#if defined(RAPIDJSON_SIMD) && defined(_MSC_VER) +#include <intrin.h> +#pragma intrinsic(_BitScanForward) +#endif +#ifdef RAPIDJSON_SSE42 +#include <nmmintrin.h> +#elif defined(RAPIDJSON_SSE2) +#include <emmintrin.h> +#elif defined(RAPIDJSON_NEON) +#include <arm_neon.h> +#endif + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(old-style-cast) +RAPIDJSON_DIAG_OFF(padded) +RAPIDJSON_DIAG_OFF(switch-enum) +#elif defined(_MSC_VER) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant +RAPIDJSON_DIAG_OFF(4702) // unreachable code +#endif + +#ifdef __GNUC__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +#endif + +//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN +#define RAPIDJSON_NOTHING /* deliberately empty */ +#ifndef RAPIDJSON_PARSE_ERROR_EARLY_RETURN +#define RAPIDJSON_PARSE_ERROR_EARLY_RETURN(value) \ + RAPIDJSON_MULTILINEMACRO_BEGIN \ + if (RAPIDJSON_UNLIKELY(HasParseError())) { return value; } \ + RAPIDJSON_MULTILINEMACRO_END +#endif +#define RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID \ + RAPIDJSON_PARSE_ERROR_EARLY_RETURN(RAPIDJSON_NOTHING) +//!@endcond + +/*! \def RAPIDJSON_PARSE_ERROR_NORETURN + \ingroup RAPIDJSON_ERRORS + \brief Macro to indicate a parse error. + \param parseErrorCode \ref rapidjson::ParseErrorCode of the error + \param offset position of the error in JSON input (\c size_t) + + This macros can be used as a customization point for the internal + error handling mechanism of RapidJSON. + + A common usage model is to throw an exception instead of requiring the + caller to explicitly check the \ref rapidjson::GenericReader::Parse's + return value: + + \code + #define RAPIDJSON_PARSE_ERROR_NORETURN(parseErrorCode,offset) \ + throw ParseException(parseErrorCode, #parseErrorCode, offset) + + #include <stdexcept> // std::runtime_error + #include "rapidjson/error/error.h" // rapidjson::ParseResult + + struct ParseException : std::runtime_error, rapidjson::ParseResult { + ParseException(rapidjson::ParseErrorCode code, const char* msg, size_t offset) + : std::runtime_error(msg), ParseResult(code, offset) {} + }; + + #include "rapidjson/reader.h" + \endcode + + \see RAPIDJSON_PARSE_ERROR, rapidjson::GenericReader::Parse + */ +#ifndef RAPIDJSON_PARSE_ERROR_NORETURN +#define RAPIDJSON_PARSE_ERROR_NORETURN(parseErrorCode, offset) \ + RAPIDJSON_MULTILINEMACRO_BEGIN \ + RAPIDJSON_ASSERT(!HasParseError()); /* Error can only be assigned once */ \ + SetParseError(parseErrorCode, offset); \ + RAPIDJSON_MULTILINEMACRO_END +#endif + +/*! \def RAPIDJSON_PARSE_ERROR + \ingroup RAPIDJSON_ERRORS + \brief (Internal) macro to indicate and handle a parse error. + \param parseErrorCode \ref rapidjson::ParseErrorCode of the error + \param offset position of the error in JSON input (\c size_t) + + Invokes RAPIDJSON_PARSE_ERROR_NORETURN and stops the parsing. + + \see RAPIDJSON_PARSE_ERROR_NORETURN + \hideinitializer + */ +#ifndef RAPIDJSON_PARSE_ERROR +#define RAPIDJSON_PARSE_ERROR(parseErrorCode, offset) \ + RAPIDJSON_MULTILINEMACRO_BEGIN \ + RAPIDJSON_PARSE_ERROR_NORETURN(parseErrorCode, offset); \ + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; \ + RAPIDJSON_MULTILINEMACRO_END +#endif + +#include "lottie_rapidjson_error_error.h" + +RAPIDJSON_NAMESPACE_BEGIN + +/////////////////////////////////////////////////////////////////////////////// +// ParseFlag + +/*! \def RAPIDJSON_PARSE_DEFAULT_FLAGS + \ingroup RAPIDJSON_CONFIG + \brief User-defined kParseDefaultFlags definition. + + User can define this as any \c ParseFlag combinations. +*/ +#ifndef RAPIDJSON_PARSE_DEFAULT_FLAGS +#define RAPIDJSON_PARSE_DEFAULT_FLAGS kParseNoFlags +#endif + +//! Combination of parseFlags +/*! \see Reader::Parse, Document::Parse, Document::ParseInsitu, Document::ParseStream + */ +enum ParseFlag { + kParseNoFlags = 0, //!< No flags are set. + kParseInsituFlag = 1, //!< In-situ(destructive) parsing. + kParseValidateEncodingFlag = 2, //!< Validate encoding of JSON strings. + kParseIterativeFlag = 4, //!< Iterative(constant complexity in terms of function call stack size) parsing. + kParseStopWhenDoneFlag = 8, //!< After parsing a complete JSON root from stream, stop further processing the rest of stream. When this flag is used, parser will not generate kParseErrorDocumentRootNotSingular error. + kParseFullPrecisionFlag = 16, //!< Parse number in full precision (but slower). + kParseCommentsFlag = 32, //!< Allow one-line (//) and multi-line (/**/) comments. + kParseNumbersAsStringsFlag = 64, //!< Parse all numbers (ints/doubles) as strings. + kParseTrailingCommasFlag = 128, //!< Allow trailing commas at the end of objects and arrays. + kParseNanAndInfFlag = 256, //!< Allow parsing NaN, Inf, Infinity, -Inf and -Infinity as doubles. + kParseEscapedApostropheFlag = 512, //!< Allow escaped apostrophe in strings. + kParseDefaultFlags = RAPIDJSON_PARSE_DEFAULT_FLAGS //!< Default parse flags. Can be customized by defining RAPIDJSON_PARSE_DEFAULT_FLAGS +}; + +/////////////////////////////////////////////////////////////////////////////// +// Handler + +/*! \class rapidjson::Handler + \brief Concept for receiving events from GenericReader upon parsing. + The functions return true if no error occurs. If they return false, + the event publisher should terminate the process. +\code +concept Handler { + typename Ch; + + bool Null(); + bool Bool(bool b); + bool Int(int i); + bool Uint(unsigned i); + bool Int64(int64_t i); + bool Uint64(uint64_t i); + bool Double(double d); + /// enabled via kParseNumbersAsStringsFlag, string is not null-terminated (use length) + bool RawNumber(const Ch* str, SizeType length, bool copy); + bool String(const Ch* str, SizeType length, bool copy); + bool StartObject(); + bool Key(const Ch* str, SizeType length, bool copy); + bool EndObject(SizeType memberCount); + bool StartArray(); + bool EndArray(SizeType elementCount); +}; +\endcode +*/ +/////////////////////////////////////////////////////////////////////////////// +// BaseReaderHandler + +//! Default implementation of Handler. +/*! This can be used as base class of any reader handler. + \note implements Handler concept +*/ +template<typename Encoding = UTF8<>, typename Derived = void> +struct BaseReaderHandler { + typedef typename Encoding::Ch Ch; + + typedef typename internal::SelectIf<internal::IsSame<Derived, void>, BaseReaderHandler, Derived>::Type Override; + + bool Default() { return true; } + bool Null() { return static_cast<Override&>(*this).Default(); } + bool Bool(bool) { return static_cast<Override&>(*this).Default(); } + bool Int(int) { return static_cast<Override&>(*this).Default(); } + bool Uint(unsigned) { return static_cast<Override&>(*this).Default(); } + bool Int64(int64_t) { return static_cast<Override&>(*this).Default(); } + bool Uint64(uint64_t) { return static_cast<Override&>(*this).Default(); } + bool Double(double) { return static_cast<Override&>(*this).Default(); } + /// enabled via kParseNumbersAsStringsFlag, string is not null-terminated (use length) + bool RawNumber(const Ch* str, SizeType len, bool copy) { return static_cast<Override&>(*this).String(str, len, copy); } + bool String(const Ch*, SizeType, bool) { return static_cast<Override&>(*this).Default(); } + bool StartObject() { return static_cast<Override&>(*this).Default(); } + bool Key(const Ch* str, SizeType len, bool copy) { return static_cast<Override&>(*this).String(str, len, copy); } + bool EndObject(SizeType) { return static_cast<Override&>(*this).Default(); } + bool StartArray() { return static_cast<Override&>(*this).Default(); } + bool EndArray(SizeType) { return static_cast<Override&>(*this).Default(); } +}; + +/////////////////////////////////////////////////////////////////////////////// +// StreamLocalCopy + +namespace internal { + +template<typename Stream, int = StreamTraits<Stream>::copyOptimization> +class StreamLocalCopy; + +//! Do copy optimization. +template<typename Stream> +class StreamLocalCopy<Stream, 1> { +public: + StreamLocalCopy(Stream& original) : s(original), original_(original) {} + ~StreamLocalCopy() { original_ = s; } + + Stream s; + +private: + StreamLocalCopy& operator=(const StreamLocalCopy&) /* = delete */; + + Stream& original_; +}; + +//! Keep reference. +template<typename Stream> +class StreamLocalCopy<Stream, 0> { +public: + StreamLocalCopy(Stream& original) : s(original) {} + + Stream& s; + +private: + StreamLocalCopy& operator=(const StreamLocalCopy&) /* = delete */; +}; + +} // namespace internal + +/////////////////////////////////////////////////////////////////////////////// +// SkipWhitespace + +//! Skip the JSON white spaces in a stream. +/*! \param is A input stream for skipping white spaces. + \note This function has SSE2/SSE4.2 specialization. +*/ +template<typename InputStream> +void SkipWhitespace(InputStream& is) { + internal::StreamLocalCopy<InputStream> copy(is); + InputStream& s(copy.s); + + typename InputStream::Ch c; + while ((c = s.Peek()) == ' ' || c == '\n' || c == '\r' || c == '\t') + s.Take(); +} + +inline const char* SkipWhitespace(const char* p, const char* end) { + while (p != end && (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')) + ++p; + return p; +} + +#ifdef RAPIDJSON_SSE42 +//! Skip whitespace with SSE 4.2 pcmpistrm instruction, testing 16 8-byte characters at once. +inline const char *SkipWhitespace_SIMD(const char* p) { + // Fast return for single non-whitespace + if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t') + ++p; + else + return p; + + // 16-byte align to the next boundary + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + while (p != nextAligned) + if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t') + ++p; + else + return p; + + // The rest of string using SIMD + static const char whitespace[16] = " \n\r\t"; + const __m128i w = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespace[0])); + + for (;; p += 16) { + const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p)); + const int r = _mm_cmpistri(w, s, _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_ANY | _SIDD_LEAST_SIGNIFICANT | _SIDD_NEGATIVE_POLARITY); + if (r != 16) // some of characters is non-whitespace + return p + r; + } +} + +inline const char *SkipWhitespace_SIMD(const char* p, const char* end) { + // Fast return for single non-whitespace + if (p != end && (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')) + ++p; + else + return p; + + // The middle of string using SIMD + static const char whitespace[16] = " \n\r\t"; + const __m128i w = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespace[0])); + + for (; p <= end - 16; p += 16) { + const __m128i s = _mm_loadu_si128(reinterpret_cast<const __m128i *>(p)); + const int r = _mm_cmpistri(w, s, _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_ANY | _SIDD_LEAST_SIGNIFICANT | _SIDD_NEGATIVE_POLARITY); + if (r != 16) // some of characters is non-whitespace + return p + r; + } + + return SkipWhitespace(p, end); +} + +#elif defined(RAPIDJSON_SSE2) + +//! Skip whitespace with SSE2 instructions, testing 16 8-byte characters at once. +inline const char *SkipWhitespace_SIMD(const char* p) { + // Fast return for single non-whitespace + if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t') + ++p; + else + return p; + + // 16-byte align to the next boundary + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + while (p != nextAligned) + if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t') + ++p; + else + return p; + + // The rest of string + #define C16(c) { c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c } + static const char whitespaces[4][16] = { C16(' '), C16('\n'), C16('\r'), C16('\t') }; + #undef C16 + + const __m128i w0 = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespaces[0][0])); + const __m128i w1 = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespaces[1][0])); + const __m128i w2 = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespaces[2][0])); + const __m128i w3 = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespaces[3][0])); + + for (;; p += 16) { + const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p)); + __m128i x = _mm_cmpeq_epi8(s, w0); + x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w1)); + x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w2)); + x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w3)); + unsigned short r = static_cast<unsigned short>(~_mm_movemask_epi8(x)); + if (r != 0) { // some of characters may be non-whitespace +#ifdef _MSC_VER // Find the index of first non-whitespace + unsigned long offset; + _BitScanForward(&offset, r); + return p + offset; +#else + return p + __builtin_ffs(r) - 1; +#endif + } + } +} + +inline const char *SkipWhitespace_SIMD(const char* p, const char* end) { + // Fast return for single non-whitespace + if (p != end && (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')) + ++p; + else + return p; + + // The rest of string + #define C16(c) { c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c } + static const char whitespaces[4][16] = { C16(' '), C16('\n'), C16('\r'), C16('\t') }; + #undef C16 + + const __m128i w0 = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespaces[0][0])); + const __m128i w1 = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespaces[1][0])); + const __m128i w2 = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespaces[2][0])); + const __m128i w3 = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&whitespaces[3][0])); + + for (; p <= end - 16; p += 16) { + const __m128i s = _mm_loadu_si128(reinterpret_cast<const __m128i *>(p)); + __m128i x = _mm_cmpeq_epi8(s, w0); + x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w1)); + x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w2)); + x = _mm_or_si128(x, _mm_cmpeq_epi8(s, w3)); + unsigned short r = static_cast<unsigned short>(~_mm_movemask_epi8(x)); + if (r != 0) { // some of characters may be non-whitespace +#ifdef _MSC_VER // Find the index of first non-whitespace + unsigned long offset; + _BitScanForward(&offset, r); + return p + offset; +#else + return p + __builtin_ffs(r) - 1; +#endif + } + } + + return SkipWhitespace(p, end); +} + +#elif defined(RAPIDJSON_NEON) + +//! Skip whitespace with ARM Neon instructions, testing 16 8-byte characters at once. +inline const char *SkipWhitespace_SIMD(const char* p) { + // Fast return for single non-whitespace + if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t') + ++p; + else + return p; + + // 16-byte align to the next boundary + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + while (p != nextAligned) + if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t') + ++p; + else + return p; + + const uint8x16_t w0 = vmovq_n_u8(' '); + const uint8x16_t w1 = vmovq_n_u8('\n'); + const uint8x16_t w2 = vmovq_n_u8('\r'); + const uint8x16_t w3 = vmovq_n_u8('\t'); + + for (;; p += 16) { + const uint8x16_t s = vld1q_u8(reinterpret_cast<const uint8_t *>(p)); + uint8x16_t x = vceqq_u8(s, w0); + x = vorrq_u8(x, vceqq_u8(s, w1)); + x = vorrq_u8(x, vceqq_u8(s, w2)); + x = vorrq_u8(x, vceqq_u8(s, w3)); + + x = vmvnq_u8(x); // Negate + x = vrev64q_u8(x); // Rev in 64 + uint64_t low = vgetq_lane_u64(vreinterpretq_u64_u8(x), 0); // extract + uint64_t high = vgetq_lane_u64(vreinterpretq_u64_u8(x), 1); // extract + + if (low == 0) { + if (high != 0) { + uint32_t lz = internal::clzll(high); + return p + 8 + (lz >> 3); + } + } else { + uint32_t lz = internal::clzll(low); + return p + (lz >> 3); + } + } +} + +inline const char *SkipWhitespace_SIMD(const char* p, const char* end) { + // Fast return for single non-whitespace + if (p != end && (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')) + ++p; + else + return p; + + const uint8x16_t w0 = vmovq_n_u8(' '); + const uint8x16_t w1 = vmovq_n_u8('\n'); + const uint8x16_t w2 = vmovq_n_u8('\r'); + const uint8x16_t w3 = vmovq_n_u8('\t'); + + for (; p <= end - 16; p += 16) { + const uint8x16_t s = vld1q_u8(reinterpret_cast<const uint8_t *>(p)); + uint8x16_t x = vceqq_u8(s, w0); + x = vorrq_u8(x, vceqq_u8(s, w1)); + x = vorrq_u8(x, vceqq_u8(s, w2)); + x = vorrq_u8(x, vceqq_u8(s, w3)); + + x = vmvnq_u8(x); // Negate + x = vrev64q_u8(x); // Rev in 64 + uint64_t low = vgetq_lane_u64(vreinterpretq_u64_u8(x), 0); // extract + uint64_t high = vgetq_lane_u64(vreinterpretq_u64_u8(x), 1); // extract + + if (low == 0) { + if (high != 0) { + uint32_t lz = internal::clzll(high); + return p + 8 + (lz >> 3); + } + } else { + uint32_t lz = internal::clzll(low); + return p + (lz >> 3); + } + } + + return SkipWhitespace(p, end); +} + +#endif // RAPIDJSON_NEON + +#ifdef RAPIDJSON_SIMD +//! Template function specialization for InsituStringStream +template<> inline void SkipWhitespace(InsituStringStream& is) { + is.src_ = const_cast<char*>(SkipWhitespace_SIMD(is.src_)); +} + +//! Template function specialization for StringStream +template<> inline void SkipWhitespace(StringStream& is) { + is.src_ = SkipWhitespace_SIMD(is.src_); +} + +template<> inline void SkipWhitespace(EncodedInputStream<UTF8<>, MemoryStream>& is) { + is.is_.src_ = SkipWhitespace_SIMD(is.is_.src_, is.is_.end_); +} +#endif // RAPIDJSON_SIMD + +/////////////////////////////////////////////////////////////////////////////// +// GenericReader + +//! SAX-style JSON parser. Use \ref Reader for UTF8 encoding and default allocator. +/*! GenericReader parses JSON text from a stream, and send events synchronously to an + object implementing Handler concept. + + It needs to allocate a stack for storing a single decoded string during + non-destructive parsing. + + For in-situ parsing, the decoded string is directly written to the source + text string, no temporary buffer is required. + + A GenericReader object can be reused for parsing multiple JSON text. + + \tparam SourceEncoding Encoding of the input stream. + \tparam TargetEncoding Encoding of the parse output. + \tparam StackAllocator Allocator type for stack. +*/ +template <typename SourceEncoding, typename TargetEncoding, typename StackAllocator = CrtAllocator> +class GenericReader { +public: + typedef typename SourceEncoding::Ch Ch; //!< SourceEncoding character type + + //! Constructor. + /*! \param stackAllocator Optional allocator for allocating stack memory. (Only use for non-destructive parsing) + \param stackCapacity stack capacity in bytes for storing a single decoded string. (Only use for non-destructive parsing) + */ + GenericReader(StackAllocator* stackAllocator = 0, size_t stackCapacity = kDefaultStackCapacity) : + stack_(stackAllocator, stackCapacity), parseResult_(), state_(IterativeParsingStartState) {} + + //! Parse JSON text. + /*! \tparam parseFlags Combination of \ref ParseFlag. + \tparam InputStream Type of input stream, implementing Stream concept. + \tparam Handler Type of handler, implementing Handler concept. + \param is Input stream to be parsed. + \param handler The handler to receive events. + \return Whether the parsing is successful. + */ + template <unsigned parseFlags, typename InputStream, typename Handler> + ParseResult Parse(InputStream& is, Handler& handler) { + if (parseFlags & kParseIterativeFlag) + return IterativeParse<parseFlags>(is, handler); + + parseResult_.Clear(); + + ClearStackOnExit scope(*this); + + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_); + + if (RAPIDJSON_UNLIKELY(is.Peek() == '\0')) { + RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorDocumentEmpty, is.Tell()); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_); + } + else { + ParseValue<parseFlags>(is, handler); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_); + + if (!(parseFlags & kParseStopWhenDoneFlag)) { + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_); + + if (RAPIDJSON_UNLIKELY(is.Peek() != '\0')) { + RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorDocumentRootNotSingular, is.Tell()); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_); + } + } + } + + return parseResult_; + } + + //! Parse JSON text (with \ref kParseDefaultFlags) + /*! \tparam InputStream Type of input stream, implementing Stream concept + \tparam Handler Type of handler, implementing Handler concept. + \param is Input stream to be parsed. + \param handler The handler to receive events. + \return Whether the parsing is successful. + */ + template <typename InputStream, typename Handler> + ParseResult Parse(InputStream& is, Handler& handler) { + return Parse<kParseDefaultFlags>(is, handler); + } + + //! Initialize JSON text token-by-token parsing + /*! + */ + void IterativeParseInit() { + parseResult_.Clear(); + state_ = IterativeParsingStartState; + } + + //! Parse one token from JSON text + /*! \tparam InputStream Type of input stream, implementing Stream concept + \tparam Handler Type of handler, implementing Handler concept. + \param is Input stream to be parsed. + \param handler The handler to receive events. + \return Whether the parsing is successful. + */ + template <unsigned parseFlags, typename InputStream, typename Handler> + bool IterativeParseNext(InputStream& is, Handler& handler) { + while (RAPIDJSON_LIKELY(is.Peek() != '\0')) { + SkipWhitespaceAndComments<parseFlags>(is); + + Token t = Tokenize(is.Peek()); + IterativeParsingState n = Predict(state_, t); + IterativeParsingState d = Transit<parseFlags>(state_, t, n, is, handler); + + // If we've finished or hit an error... + if (RAPIDJSON_UNLIKELY(IsIterativeParsingCompleteState(d))) { + // Report errors. + if (d == IterativeParsingErrorState) { + HandleError(state_, is); + return false; + } + + // Transition to the finish state. + RAPIDJSON_ASSERT(d == IterativeParsingFinishState); + state_ = d; + + // If StopWhenDone is not set... + if (!(parseFlags & kParseStopWhenDoneFlag)) { + // ... and extra non-whitespace data is found... + SkipWhitespaceAndComments<parseFlags>(is); + if (is.Peek() != '\0') { + // ... this is considered an error. + HandleError(state_, is); + return false; + } + } + + // Success! We are done! + return true; + } + + // Transition to the new state. + state_ = d; + + // If we parsed anything other than a delimiter, we invoked the handler, so we can return true now. + if (!IsIterativeParsingDelimiterState(n)) + return true; + } + + // We reached the end of file. + stack_.Clear(); + + if (state_ != IterativeParsingFinishState) { + HandleError(state_, is); + return false; + } + + return true; + } + + //! Check if token-by-token parsing JSON text is complete + /*! \return Whether the JSON has been fully decoded. + */ + RAPIDJSON_FORCEINLINE bool IterativeParseComplete() const { + return IsIterativeParsingCompleteState(state_); + } + + //! Whether a parse error has occurred in the last parsing. + bool HasParseError() const { return parseResult_.IsError(); } + + //! Get the \ref ParseErrorCode of last parsing. + ParseErrorCode GetParseErrorCode() const { return parseResult_.Code(); } + + //! Get the position of last parsing error in input, 0 otherwise. + size_t GetErrorOffset() const { return parseResult_.Offset(); } + +protected: + void SetParseError(ParseErrorCode code, size_t offset) { parseResult_.Set(code, offset); } + +private: + // Prohibit copy constructor & assignment operator. + GenericReader(const GenericReader&); + GenericReader& operator=(const GenericReader&); + + void ClearStack() { stack_.Clear(); } + + // clear stack on any exit from ParseStream, e.g. due to exception + struct ClearStackOnExit { + explicit ClearStackOnExit(GenericReader& r) : r_(r) {} + ~ClearStackOnExit() { r_.ClearStack(); } + private: + GenericReader& r_; + ClearStackOnExit(const ClearStackOnExit&); + ClearStackOnExit& operator=(const ClearStackOnExit&); + }; + + template<unsigned parseFlags, typename InputStream> + void SkipWhitespaceAndComments(InputStream& is) { + SkipWhitespace(is); + + if (parseFlags & kParseCommentsFlag) { + while (RAPIDJSON_UNLIKELY(Consume(is, '/'))) { + if (Consume(is, '*')) { + while (true) { + if (RAPIDJSON_UNLIKELY(is.Peek() == '\0')) + RAPIDJSON_PARSE_ERROR(kParseErrorUnspecificSyntaxError, is.Tell()); + else if (Consume(is, '*')) { + if (Consume(is, '/')) + break; + } + else + is.Take(); + } + } + else if (RAPIDJSON_LIKELY(Consume(is, '/'))) + while (is.Peek() != '\0' && is.Take() != '\n') {} + else + RAPIDJSON_PARSE_ERROR(kParseErrorUnspecificSyntaxError, is.Tell()); + + SkipWhitespace(is); + } + } + } + + // Parse object: { string : value, ... } + template<unsigned parseFlags, typename InputStream, typename Handler> + void ParseObject(InputStream& is, Handler& handler) { + RAPIDJSON_ASSERT(is.Peek() == '{'); + is.Take(); // Skip '{' + + if (RAPIDJSON_UNLIKELY(!handler.StartObject())) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + + if (Consume(is, '}')) { + if (RAPIDJSON_UNLIKELY(!handler.EndObject(0))) // empty object + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + return; + } + + for (SizeType memberCount = 0;;) { + if (RAPIDJSON_UNLIKELY(is.Peek() != '"')) + RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissName, is.Tell()); + + ParseString<parseFlags>(is, handler, true); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + + if (RAPIDJSON_UNLIKELY(!Consume(is, ':'))) + RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissColon, is.Tell()); + + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + + ParseValue<parseFlags>(is, handler); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + + ++memberCount; + + switch (is.Peek()) { + case ',': + is.Take(); + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + break; + case '}': + is.Take(); + if (RAPIDJSON_UNLIKELY(!handler.EndObject(memberCount))) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + return; + default: + RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissCommaOrCurlyBracket, is.Tell()); break; // This useless break is only for making warning and coverage happy + } + + if (parseFlags & kParseTrailingCommasFlag) { + if (is.Peek() == '}') { + if (RAPIDJSON_UNLIKELY(!handler.EndObject(memberCount))) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + is.Take(); + return; + } + } + } + } + + // Parse array: [ value, ... ] + template<unsigned parseFlags, typename InputStream, typename Handler> + void ParseArray(InputStream& is, Handler& handler) { + RAPIDJSON_ASSERT(is.Peek() == '['); + is.Take(); // Skip '[' + + if (RAPIDJSON_UNLIKELY(!handler.StartArray())) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + + if (Consume(is, ']')) { + if (RAPIDJSON_UNLIKELY(!handler.EndArray(0))) // empty array + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + return; + } + + for (SizeType elementCount = 0;;) { + ParseValue<parseFlags>(is, handler); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + + ++elementCount; + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + + if (Consume(is, ',')) { + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + } + else if (Consume(is, ']')) { + if (RAPIDJSON_UNLIKELY(!handler.EndArray(elementCount))) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + return; + } + else + RAPIDJSON_PARSE_ERROR(kParseErrorArrayMissCommaOrSquareBracket, is.Tell()); + + if (parseFlags & kParseTrailingCommasFlag) { + if (is.Peek() == ']') { + if (RAPIDJSON_UNLIKELY(!handler.EndArray(elementCount))) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + is.Take(); + return; + } + } + } + } + + template<unsigned parseFlags, typename InputStream, typename Handler> + void ParseNull(InputStream& is, Handler& handler) { + RAPIDJSON_ASSERT(is.Peek() == 'n'); + is.Take(); + + if (RAPIDJSON_LIKELY(Consume(is, 'u') && Consume(is, 'l') && Consume(is, 'l'))) { + if (RAPIDJSON_UNLIKELY(!handler.Null())) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + } + else + RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, is.Tell()); + } + + template<unsigned parseFlags, typename InputStream, typename Handler> + void ParseTrue(InputStream& is, Handler& handler) { + RAPIDJSON_ASSERT(is.Peek() == 't'); + is.Take(); + + if (RAPIDJSON_LIKELY(Consume(is, 'r') && Consume(is, 'u') && Consume(is, 'e'))) { + if (RAPIDJSON_UNLIKELY(!handler.Bool(true))) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + } + else + RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, is.Tell()); + } + + template<unsigned parseFlags, typename InputStream, typename Handler> + void ParseFalse(InputStream& is, Handler& handler) { + RAPIDJSON_ASSERT(is.Peek() == 'f'); + is.Take(); + + if (RAPIDJSON_LIKELY(Consume(is, 'a') && Consume(is, 'l') && Consume(is, 's') && Consume(is, 'e'))) { + if (RAPIDJSON_UNLIKELY(!handler.Bool(false))) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, is.Tell()); + } + else + RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, is.Tell()); + } + + template<typename InputStream> + RAPIDJSON_FORCEINLINE static bool Consume(InputStream& is, typename InputStream::Ch expect) { + if (RAPIDJSON_LIKELY(is.Peek() == expect)) { + is.Take(); + return true; + } + else + return false; + } + + // Helper function to parse four hexadecimal digits in \uXXXX in ParseString(). + template<typename InputStream> + unsigned ParseHex4(InputStream& is, size_t escapeOffset) { + unsigned codepoint = 0; + for (int i = 0; i < 4; i++) { + Ch c = is.Peek(); + codepoint <<= 4; + codepoint += static_cast<unsigned>(c); + if (c >= '0' && c <= '9') + codepoint -= '0'; + else if (c >= 'A' && c <= 'F') + codepoint -= 'A' - 10; + else if (c >= 'a' && c <= 'f') + codepoint -= 'a' - 10; + else { + RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorStringUnicodeEscapeInvalidHex, escapeOffset); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN(0); + } + is.Take(); + } + return codepoint; + } + + template <typename CharType> + class StackStream { + public: + typedef CharType Ch; + + StackStream(internal::Stack<StackAllocator>& stack) : stack_(stack), length_(0) {} + RAPIDJSON_FORCEINLINE void Put(Ch c) { + *stack_.template Push<Ch>() = c; + ++length_; + } + + RAPIDJSON_FORCEINLINE void* Push(SizeType count) { + length_ += count; + return stack_.template Push<Ch>(count); + } + + size_t Length() const { return length_; } + + Ch* Pop() { + return stack_.template Pop<Ch>(length_); + } + + private: + StackStream(const StackStream&); + StackStream& operator=(const StackStream&); + + internal::Stack<StackAllocator>& stack_; + SizeType length_; + }; + + // Parse string and generate String event. Different code paths for kParseInsituFlag. + template<unsigned parseFlags, typename InputStream, typename Handler> + void ParseString(InputStream& is, Handler& handler, bool isKey = false) { + internal::StreamLocalCopy<InputStream> copy(is); + InputStream& s(copy.s); + + RAPIDJSON_ASSERT(s.Peek() == '\"'); + s.Take(); // Skip '\"' + + bool success = false; + if (parseFlags & kParseInsituFlag) { + typename InputStream::Ch *head = s.PutBegin(); + ParseStringToStream<parseFlags, SourceEncoding, SourceEncoding>(s, s); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + size_t length = s.PutEnd(head) - 1; + RAPIDJSON_ASSERT(length <= 0xFFFFFFFF); + const typename TargetEncoding::Ch* const str = reinterpret_cast<typename TargetEncoding::Ch*>(head); + success = (isKey ? handler.Key(str, SizeType(length), false) : handler.String(str, SizeType(length), false)); + } + else { + StackStream<typename TargetEncoding::Ch> stackStream(stack_); + ParseStringToStream<parseFlags, SourceEncoding, TargetEncoding>(s, stackStream); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + SizeType length = static_cast<SizeType>(stackStream.Length()) - 1; + const typename TargetEncoding::Ch* const str = stackStream.Pop(); + success = (isKey ? handler.Key(str, length, true) : handler.String(str, length, true)); + } + if (RAPIDJSON_UNLIKELY(!success)) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, s.Tell()); + } + + // Parse string to an output is + // This function handles the prefix/suffix double quotes, escaping, and optional encoding validation. + template<unsigned parseFlags, typename SEncoding, typename TEncoding, typename InputStream, typename OutputStream> + RAPIDJSON_FORCEINLINE void ParseStringToStream(InputStream& is, OutputStream& os) { +//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN +#define Z16 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 + static const char escape[256] = { + Z16, Z16, 0, 0,'\"', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '/', + Z16, Z16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,'\\', 0, 0, 0, + 0, 0,'\b', 0, 0, 0,'\f', 0, 0, 0, 0, 0, 0, 0,'\n', 0, + 0, 0,'\r', 0,'\t', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + Z16, Z16, Z16, Z16, Z16, Z16, Z16, Z16 + }; +#undef Z16 +//!@endcond + + for (;;) { + // Scan and copy string before "\\\"" or < 0x20. This is an optional optimzation. + if (!(parseFlags & kParseValidateEncodingFlag)) + ScanCopyUnescapedString(is, os); + + Ch c = is.Peek(); + if (RAPIDJSON_UNLIKELY(c == '\\')) { // Escape + size_t escapeOffset = is.Tell(); // For invalid escaping, report the initial '\\' as error offset + is.Take(); + Ch e = is.Peek(); + if ((sizeof(Ch) == 1 || unsigned(e) < 256) && RAPIDJSON_LIKELY(escape[static_cast<unsigned char>(e)])) { + is.Take(); + os.Put(static_cast<typename TEncoding::Ch>(escape[static_cast<unsigned char>(e)])); + } + else if ((parseFlags & kParseEscapedApostropheFlag) && RAPIDJSON_LIKELY(e == '\'')) { // Allow escaped apostrophe + is.Take(); + os.Put('\''); + } + else if (RAPIDJSON_LIKELY(e == 'u')) { // Unicode + is.Take(); + unsigned codepoint = ParseHex4(is, escapeOffset); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + if (RAPIDJSON_UNLIKELY(codepoint >= 0xD800 && codepoint <= 0xDFFF)) { + // high surrogate, check if followed by valid low surrogate + if (RAPIDJSON_LIKELY(codepoint <= 0xDBFF)) { + // Handle UTF-16 surrogate pair + if (RAPIDJSON_UNLIKELY(!Consume(is, '\\') || !Consume(is, 'u'))) + RAPIDJSON_PARSE_ERROR(kParseErrorStringUnicodeSurrogateInvalid, escapeOffset); + unsigned codepoint2 = ParseHex4(is, escapeOffset); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN_VOID; + if (RAPIDJSON_UNLIKELY(codepoint2 < 0xDC00 || codepoint2 > 0xDFFF)) + RAPIDJSON_PARSE_ERROR(kParseErrorStringUnicodeSurrogateInvalid, escapeOffset); + codepoint = (((codepoint - 0xD800) << 10) | (codepoint2 - 0xDC00)) + 0x10000; + } + // single low surrogate + else + { + RAPIDJSON_PARSE_ERROR(kParseErrorStringUnicodeSurrogateInvalid, escapeOffset); + } + } + TEncoding::Encode(os, codepoint); + } + else + RAPIDJSON_PARSE_ERROR(kParseErrorStringEscapeInvalid, escapeOffset); + } + else if (RAPIDJSON_UNLIKELY(c == '"')) { // Closing double quote + is.Take(); + os.Put('\0'); // null-terminate the string + return; + } + else if (RAPIDJSON_UNLIKELY(static_cast<unsigned>(c) < 0x20)) { // RFC 4627: unescaped = %x20-21 / %x23-5B / %x5D-10FFFF + if (c == '\0') + RAPIDJSON_PARSE_ERROR(kParseErrorStringMissQuotationMark, is.Tell()); + else + RAPIDJSON_PARSE_ERROR(kParseErrorStringInvalidEncoding, is.Tell()); + } + else { + size_t offset = is.Tell(); + if (RAPIDJSON_UNLIKELY((parseFlags & kParseValidateEncodingFlag ? + !Transcoder<SEncoding, TEncoding>::Validate(is, os) : + !Transcoder<SEncoding, TEncoding>::Transcode(is, os)))) + RAPIDJSON_PARSE_ERROR(kParseErrorStringInvalidEncoding, offset); + } + } + } + + template<typename InputStream, typename OutputStream> + static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(InputStream&, OutputStream&) { + // Do nothing for generic version + } + +#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42) + // StringStream -> StackStream<char> + static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(StringStream& is, StackStream<char>& os) { + const char* p = is.src_; + + // Scan one by one until alignment (unaligned load may cross page boundary and cause crash) + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + while (p != nextAligned) + if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') || RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) { + is.src_ = p; + return; + } + else + os.Put(*p++); + + // The rest of string using SIMD + static const char dquote[16] = { '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"' }; + static const char bslash[16] = { '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\' }; + static const char space[16] = { 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F }; + const __m128i dq = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&dquote[0])); + const __m128i bs = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&bslash[0])); + const __m128i sp = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&space[0])); + + for (;; p += 16) { + const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p)); + const __m128i t1 = _mm_cmpeq_epi8(s, dq); + const __m128i t2 = _mm_cmpeq_epi8(s, bs); + const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x1F) == 0x1F + const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3); + unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x)); + if (RAPIDJSON_UNLIKELY(r != 0)) { // some of characters is escaped + SizeType length; + #ifdef _MSC_VER // Find the index of first escaped + unsigned long offset; + _BitScanForward(&offset, r); + length = offset; + #else + length = static_cast<SizeType>(__builtin_ffs(r) - 1); + #endif + if (length != 0) { + char* q = reinterpret_cast<char*>(os.Push(length)); + for (size_t i = 0; i < length; i++) + q[i] = p[i]; + + p += length; + } + break; + } + _mm_storeu_si128(reinterpret_cast<__m128i *>(os.Push(16)), s); + } + + is.src_ = p; + } + + // InsituStringStream -> InsituStringStream + static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(InsituStringStream& is, InsituStringStream& os) { + RAPIDJSON_ASSERT(&is == &os); + (void)os; + + if (is.src_ == is.dst_) { + SkipUnescapedString(is); + return; + } + + char* p = is.src_; + char *q = is.dst_; + + // Scan one by one until alignment (unaligned load may cross page boundary and cause crash) + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + while (p != nextAligned) + if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') || RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) { + is.src_ = p; + is.dst_ = q; + return; + } + else + *q++ = *p++; + + // The rest of string using SIMD + static const char dquote[16] = { '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"' }; + static const char bslash[16] = { '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\' }; + static const char space[16] = { 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F }; + const __m128i dq = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&dquote[0])); + const __m128i bs = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&bslash[0])); + const __m128i sp = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&space[0])); + + for (;; p += 16, q += 16) { + const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p)); + const __m128i t1 = _mm_cmpeq_epi8(s, dq); + const __m128i t2 = _mm_cmpeq_epi8(s, bs); + const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x1F) == 0x1F + const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3); + unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x)); + if (RAPIDJSON_UNLIKELY(r != 0)) { // some of characters is escaped + size_t length; +#ifdef _MSC_VER // Find the index of first escaped + unsigned long offset; + _BitScanForward(&offset, r); + length = offset; +#else + length = static_cast<size_t>(__builtin_ffs(r) - 1); +#endif + for (const char* pend = p + length; p != pend; ) + *q++ = *p++; + break; + } + _mm_storeu_si128(reinterpret_cast<__m128i *>(q), s); + } + + is.src_ = p; + is.dst_ = q; + } + + // When read/write pointers are the same for insitu stream, just skip unescaped characters + static RAPIDJSON_FORCEINLINE void SkipUnescapedString(InsituStringStream& is) { + RAPIDJSON_ASSERT(is.src_ == is.dst_); + char* p = is.src_; + + // Scan one by one until alignment (unaligned load may cross page boundary and cause crash) + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + for (; p != nextAligned; p++) + if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') || RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) { + is.src_ = is.dst_ = p; + return; + } + + // The rest of string using SIMD + static const char dquote[16] = { '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"' }; + static const char bslash[16] = { '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\' }; + static const char space[16] = { 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F }; + const __m128i dq = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&dquote[0])); + const __m128i bs = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&bslash[0])); + const __m128i sp = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&space[0])); + + for (;; p += 16) { + const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p)); + const __m128i t1 = _mm_cmpeq_epi8(s, dq); + const __m128i t2 = _mm_cmpeq_epi8(s, bs); + const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x1F) == 0x1F + const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3); + unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x)); + if (RAPIDJSON_UNLIKELY(r != 0)) { // some of characters is escaped + size_t length; +#ifdef _MSC_VER // Find the index of first escaped + unsigned long offset; + _BitScanForward(&offset, r); + length = offset; +#else + length = static_cast<size_t>(__builtin_ffs(r) - 1); +#endif + p += length; + break; + } + } + + is.src_ = is.dst_ = p; + } +#elif defined(RAPIDJSON_NEON) + // StringStream -> StackStream<char> + static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(StringStream& is, StackStream<char>& os) { + const char* p = is.src_; + + // Scan one by one until alignment (unaligned load may cross page boundary and cause crash) + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + while (p != nextAligned) + if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') || RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) { + is.src_ = p; + return; + } + else + os.Put(*p++); + + // The rest of string using SIMD + const uint8x16_t s0 = vmovq_n_u8('"'); + const uint8x16_t s1 = vmovq_n_u8('\\'); + const uint8x16_t s2 = vmovq_n_u8('\b'); + const uint8x16_t s3 = vmovq_n_u8(32); + + for (;; p += 16) { + const uint8x16_t s = vld1q_u8(reinterpret_cast<const uint8_t *>(p)); + uint8x16_t x = vceqq_u8(s, s0); + x = vorrq_u8(x, vceqq_u8(s, s1)); + x = vorrq_u8(x, vceqq_u8(s, s2)); + x = vorrq_u8(x, vcltq_u8(s, s3)); + + x = vrev64q_u8(x); // Rev in 64 + uint64_t low = vgetq_lane_u64(vreinterpretq_u64_u8(x), 0); // extract + uint64_t high = vgetq_lane_u64(vreinterpretq_u64_u8(x), 1); // extract + + SizeType length = 0; + bool escaped = false; + if (low == 0) { + if (high != 0) { + uint32_t lz = internal::clzll(high); + length = 8 + (lz >> 3); + escaped = true; + } + } else { + uint32_t lz = internal::clzll(low); + length = lz >> 3; + escaped = true; + } + if (RAPIDJSON_UNLIKELY(escaped)) { // some of characters is escaped + if (length != 0) { + char* q = reinterpret_cast<char*>(os.Push(length)); + for (size_t i = 0; i < length; i++) + q[i] = p[i]; + + p += length; + } + break; + } + vst1q_u8(reinterpret_cast<uint8_t *>(os.Push(16)), s); + } + + is.src_ = p; + } + + // InsituStringStream -> InsituStringStream + static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(InsituStringStream& is, InsituStringStream& os) { + RAPIDJSON_ASSERT(&is == &os); + (void)os; + + if (is.src_ == is.dst_) { + SkipUnescapedString(is); + return; + } + + char* p = is.src_; + char *q = is.dst_; + + // Scan one by one until alignment (unaligned load may cross page boundary and cause crash) + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + while (p != nextAligned) + if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') || RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) { + is.src_ = p; + is.dst_ = q; + return; + } + else + *q++ = *p++; + + // The rest of string using SIMD + const uint8x16_t s0 = vmovq_n_u8('"'); + const uint8x16_t s1 = vmovq_n_u8('\\'); + const uint8x16_t s2 = vmovq_n_u8('\b'); + const uint8x16_t s3 = vmovq_n_u8(32); + + for (;; p += 16, q += 16) { + const uint8x16_t s = vld1q_u8(reinterpret_cast<uint8_t *>(p)); + uint8x16_t x = vceqq_u8(s, s0); + x = vorrq_u8(x, vceqq_u8(s, s1)); + x = vorrq_u8(x, vceqq_u8(s, s2)); + x = vorrq_u8(x, vcltq_u8(s, s3)); + + x = vrev64q_u8(x); // Rev in 64 + uint64_t low = vgetq_lane_u64(vreinterpretq_u64_u8(x), 0); // extract + uint64_t high = vgetq_lane_u64(vreinterpretq_u64_u8(x), 1); // extract + + SizeType length = 0; + bool escaped = false; + if (low == 0) { + if (high != 0) { + uint32_t lz = internal::clzll(high); + length = 8 + (lz >> 3); + escaped = true; + } + } else { + uint32_t lz = internal::clzll(low); + length = lz >> 3; + escaped = true; + } + if (RAPIDJSON_UNLIKELY(escaped)) { // some of characters is escaped + for (const char* pend = p + length; p != pend; ) { + *q++ = *p++; + } + break; + } + vst1q_u8(reinterpret_cast<uint8_t *>(q), s); + } + + is.src_ = p; + is.dst_ = q; + } + + // When read/write pointers are the same for insitu stream, just skip unescaped characters + static RAPIDJSON_FORCEINLINE void SkipUnescapedString(InsituStringStream& is) { + RAPIDJSON_ASSERT(is.src_ == is.dst_); + char* p = is.src_; + + // Scan one by one until alignment (unaligned load may cross page boundary and cause crash) + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + for (; p != nextAligned; p++) + if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') || RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) { + is.src_ = is.dst_ = p; + return; + } + + // The rest of string using SIMD + const uint8x16_t s0 = vmovq_n_u8('"'); + const uint8x16_t s1 = vmovq_n_u8('\\'); + const uint8x16_t s2 = vmovq_n_u8('\b'); + const uint8x16_t s3 = vmovq_n_u8(32); + + for (;; p += 16) { + const uint8x16_t s = vld1q_u8(reinterpret_cast<uint8_t *>(p)); + uint8x16_t x = vceqq_u8(s, s0); + x = vorrq_u8(x, vceqq_u8(s, s1)); + x = vorrq_u8(x, vceqq_u8(s, s2)); + x = vorrq_u8(x, vcltq_u8(s, s3)); + + x = vrev64q_u8(x); // Rev in 64 + uint64_t low = vgetq_lane_u64(vreinterpretq_u64_u8(x), 0); // extract + uint64_t high = vgetq_lane_u64(vreinterpretq_u64_u8(x), 1); // extract + + if (low == 0) { + if (high != 0) { + uint32_t lz = internal::clzll(high); + p += 8 + (lz >> 3); + break; + } + } else { + uint32_t lz = internal::clzll(low); + p += lz >> 3; + break; + } + } + + is.src_ = is.dst_ = p; + } +#endif // RAPIDJSON_NEON + + template<typename InputStream, bool backup, bool pushOnTake> + class NumberStream; + + template<typename InputStream> + class NumberStream<InputStream, false, false> { + public: + typedef typename InputStream::Ch Ch; + + NumberStream(GenericReader& reader, InputStream& s) : is(s) { (void)reader; } + + RAPIDJSON_FORCEINLINE Ch Peek() const { return is.Peek(); } + RAPIDJSON_FORCEINLINE Ch TakePush() { return is.Take(); } + RAPIDJSON_FORCEINLINE Ch Take() { return is.Take(); } + RAPIDJSON_FORCEINLINE void Push(char) {} + + size_t Tell() { return is.Tell(); } + size_t Length() { return 0; } + const char* Pop() { return 0; } + + protected: + NumberStream& operator=(const NumberStream&); + + InputStream& is; + }; + + template<typename InputStream> + class NumberStream<InputStream, true, false> : public NumberStream<InputStream, false, false> { + typedef NumberStream<InputStream, false, false> Base; + public: + NumberStream(GenericReader& reader, InputStream& is) : Base(reader, is), stackStream(reader.stack_) {} + + RAPIDJSON_FORCEINLINE Ch TakePush() { + stackStream.Put(static_cast<char>(Base::is.Peek())); + return Base::is.Take(); + } + + RAPIDJSON_FORCEINLINE void Push(char c) { + stackStream.Put(c); + } + + size_t Length() { return stackStream.Length(); } + + const char* Pop() { + stackStream.Put('\0'); + return stackStream.Pop(); + } + + private: + StackStream<char> stackStream; + }; + + template<typename InputStream> + class NumberStream<InputStream, true, true> : public NumberStream<InputStream, true, false> { + typedef NumberStream<InputStream, true, false> Base; + public: + NumberStream(GenericReader& reader, InputStream& is) : Base(reader, is) {} + + RAPIDJSON_FORCEINLINE Ch Take() { return Base::TakePush(); } + }; + + template<unsigned parseFlags, typename InputStream, typename Handler> + void ParseNumber(InputStream& is, Handler& handler) { + internal::StreamLocalCopy<InputStream> copy(is); + NumberStream<InputStream, + ((parseFlags & kParseNumbersAsStringsFlag) != 0) ? + ((parseFlags & kParseInsituFlag) == 0) : + ((parseFlags & kParseFullPrecisionFlag) != 0), + (parseFlags & kParseNumbersAsStringsFlag) != 0 && + (parseFlags & kParseInsituFlag) == 0> s(*this, copy.s); + + size_t startOffset = s.Tell(); + double d = 0.0; + bool useNanOrInf = false; + + // Parse minus + bool minus = Consume(s, '-'); + + // Parse int: zero / ( digit1-9 *DIGIT ) + unsigned i = 0; + uint64_t i64 = 0; + bool use64bit = false; + int significandDigit = 0; + if (RAPIDJSON_UNLIKELY(s.Peek() == '0')) { + i = 0; + s.TakePush(); + } + else if (RAPIDJSON_LIKELY(s.Peek() >= '1' && s.Peek() <= '9')) { + i = static_cast<unsigned>(s.TakePush() - '0'); + + if (minus) + while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + if (RAPIDJSON_UNLIKELY(i >= 214748364)) { // 2^31 = 2147483648 + if (RAPIDJSON_LIKELY(i != 214748364 || s.Peek() > '8')) { + i64 = i; + use64bit = true; + break; + } + } + i = i * 10 + static_cast<unsigned>(s.TakePush() - '0'); + significandDigit++; + } + else + while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + if (RAPIDJSON_UNLIKELY(i >= 429496729)) { // 2^32 - 1 = 4294967295 + if (RAPIDJSON_LIKELY(i != 429496729 || s.Peek() > '5')) { + i64 = i; + use64bit = true; + break; + } + } + i = i * 10 + static_cast<unsigned>(s.TakePush() - '0'); + significandDigit++; + } + } + // Parse NaN or Infinity here + else if ((parseFlags & kParseNanAndInfFlag) && RAPIDJSON_LIKELY((s.Peek() == 'I' || s.Peek() == 'N'))) { + if (Consume(s, 'N')) { + if (Consume(s, 'a') && Consume(s, 'N')) { + d = std::numeric_limits<double>::quiet_NaN(); + useNanOrInf = true; + } + } + else if (RAPIDJSON_LIKELY(Consume(s, 'I'))) { + if (Consume(s, 'n') && Consume(s, 'f')) { + d = (minus ? -std::numeric_limits<double>::infinity() : std::numeric_limits<double>::infinity()); + useNanOrInf = true; + + if (RAPIDJSON_UNLIKELY(s.Peek() == 'i' && !(Consume(s, 'i') && Consume(s, 'n') + && Consume(s, 'i') && Consume(s, 't') && Consume(s, 'y')))) { + RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell()); + } + } + } + + if (RAPIDJSON_UNLIKELY(!useNanOrInf)) { + RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell()); + } + } + else + RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell()); + + // Parse 64bit int + bool useDouble = false; + if (use64bit) { + if (minus) + while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + if (RAPIDJSON_UNLIKELY(i64 >= RAPIDJSON_UINT64_C2(0x0CCCCCCC, 0xCCCCCCCC))) // 2^63 = 9223372036854775808 + if (RAPIDJSON_LIKELY(i64 != RAPIDJSON_UINT64_C2(0x0CCCCCCC, 0xCCCCCCCC) || s.Peek() > '8')) { + d = static_cast<double>(i64); + useDouble = true; + break; + } + i64 = i64 * 10 + static_cast<unsigned>(s.TakePush() - '0'); + significandDigit++; + } + else + while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + if (RAPIDJSON_UNLIKELY(i64 >= RAPIDJSON_UINT64_C2(0x19999999, 0x99999999))) // 2^64 - 1 = 18446744073709551615 + if (RAPIDJSON_LIKELY(i64 != RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) || s.Peek() > '5')) { + d = static_cast<double>(i64); + useDouble = true; + break; + } + i64 = i64 * 10 + static_cast<unsigned>(s.TakePush() - '0'); + significandDigit++; + } + } + + // Force double for big integer + if (useDouble) { + while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + d = d * 10 + (s.TakePush() - '0'); + } + } + + // Parse frac = decimal-point 1*DIGIT + int expFrac = 0; + size_t decimalPosition; + if (Consume(s, '.')) { + decimalPosition = s.Length(); + + if (RAPIDJSON_UNLIKELY(!(s.Peek() >= '0' && s.Peek() <= '9'))) + RAPIDJSON_PARSE_ERROR(kParseErrorNumberMissFraction, s.Tell()); + + if (!useDouble) { +#if RAPIDJSON_64BIT + // Use i64 to store significand in 64-bit architecture + if (!use64bit) + i64 = i; + + while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + if (i64 > RAPIDJSON_UINT64_C2(0x1FFFFF, 0xFFFFFFFF)) // 2^53 - 1 for fast path + break; + else { + i64 = i64 * 10 + static_cast<unsigned>(s.TakePush() - '0'); + --expFrac; + if (i64 != 0) + significandDigit++; + } + } + + d = static_cast<double>(i64); +#else + // Use double to store significand in 32-bit architecture + d = static_cast<double>(use64bit ? i64 : i); +#endif + useDouble = true; + } + + while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + if (significandDigit < 17) { + d = d * 10.0 + (s.TakePush() - '0'); + --expFrac; + if (RAPIDJSON_LIKELY(d > 0.0)) + significandDigit++; + } + else + s.TakePush(); + } + } + else + decimalPosition = s.Length(); // decimal position at the end of integer. + + // Parse exp = e [ minus / plus ] 1*DIGIT + int exp = 0; + if (Consume(s, 'e') || Consume(s, 'E')) { + if (!useDouble) { + d = static_cast<double>(use64bit ? i64 : i); + useDouble = true; + } + + bool expMinus = false; + if (Consume(s, '+')) + ; + else if (Consume(s, '-')) + expMinus = true; + + if (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + exp = static_cast<int>(s.Take() - '0'); + if (expMinus) { + // (exp + expFrac) must not underflow int => we're detecting when -exp gets + // dangerously close to INT_MIN (a pessimistic next digit 9 would push it into + // underflow territory): + // + // -(exp * 10 + 9) + expFrac >= INT_MIN + // <=> exp <= (expFrac - INT_MIN - 9) / 10 + RAPIDJSON_ASSERT(expFrac <= 0); + int maxExp = (expFrac + 2147483639) / 10; + + while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + exp = exp * 10 + static_cast<int>(s.Take() - '0'); + if (RAPIDJSON_UNLIKELY(exp > maxExp)) { + while (RAPIDJSON_UNLIKELY(s.Peek() >= '0' && s.Peek() <= '9')) // Consume the rest of exponent + s.Take(); + } + } + } + else { // positive exp + int maxExp = 308 - expFrac; + while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) { + exp = exp * 10 + static_cast<int>(s.Take() - '0'); + if (RAPIDJSON_UNLIKELY(exp > maxExp)) + RAPIDJSON_PARSE_ERROR(kParseErrorNumberTooBig, startOffset); + } + } + } + else + RAPIDJSON_PARSE_ERROR(kParseErrorNumberMissExponent, s.Tell()); + + if (expMinus) + exp = -exp; + } + + // Finish parsing, call event according to the type of number. + bool cont = true; + + if (parseFlags & kParseNumbersAsStringsFlag) { + if (parseFlags & kParseInsituFlag) { + s.Pop(); // Pop stack no matter if it will be used or not. + typename InputStream::Ch* head = is.PutBegin(); + const size_t length = s.Tell() - startOffset; + RAPIDJSON_ASSERT(length <= 0xFFFFFFFF); + // unable to insert the \0 character here, it will erase the comma after this number + const typename TargetEncoding::Ch* const str = reinterpret_cast<typename TargetEncoding::Ch*>(head); + cont = handler.RawNumber(str, SizeType(length), false); + } + else { + SizeType numCharsToCopy = static_cast<SizeType>(s.Length()); + StringStream srcStream(s.Pop()); + StackStream<typename TargetEncoding::Ch> dstStream(stack_); + while (numCharsToCopy--) { + Transcoder<UTF8<>, TargetEncoding>::Transcode(srcStream, dstStream); + } + dstStream.Put('\0'); + const typename TargetEncoding::Ch* str = dstStream.Pop(); + const SizeType length = static_cast<SizeType>(dstStream.Length()) - 1; + cont = handler.RawNumber(str, SizeType(length), true); + } + } + else { + size_t length = s.Length(); + const char* decimal = s.Pop(); // Pop stack no matter if it will be used or not. + + if (useDouble) { + int p = exp + expFrac; + if (parseFlags & kParseFullPrecisionFlag) + d = internal::StrtodFullPrecision(d, p, decimal, length, decimalPosition, exp); + else + d = internal::StrtodNormalPrecision(d, p); + + // Use > max, instead of == inf, to fix bogus warning -Wfloat-equal + if (d > (std::numeric_limits<double>::max)()) { + // Overflow + // TODO: internal::StrtodX should report overflow (or underflow) + RAPIDJSON_PARSE_ERROR(kParseErrorNumberTooBig, startOffset); + } + + cont = handler.Double(minus ? -d : d); + } + else if (useNanOrInf) { + cont = handler.Double(d); + } + else { + if (use64bit) { + if (minus) + cont = handler.Int64(static_cast<int64_t>(~i64 + 1)); + else + cont = handler.Uint64(i64); + } + else { + if (minus) + cont = handler.Int(static_cast<int32_t>(~i + 1)); + else + cont = handler.Uint(i); + } + } + } + if (RAPIDJSON_UNLIKELY(!cont)) + RAPIDJSON_PARSE_ERROR(kParseErrorTermination, startOffset); + } + + // Parse any JSON value + template<unsigned parseFlags, typename InputStream, typename Handler> + void ParseValue(InputStream& is, Handler& handler) { + switch (is.Peek()) { + case 'n': ParseNull <parseFlags>(is, handler); break; + case 't': ParseTrue <parseFlags>(is, handler); break; + case 'f': ParseFalse <parseFlags>(is, handler); break; + case '"': ParseString<parseFlags>(is, handler); break; + case '{': ParseObject<parseFlags>(is, handler); break; + case '[': ParseArray <parseFlags>(is, handler); break; + default : + ParseNumber<parseFlags>(is, handler); + break; + + } + } + + // Iterative Parsing + + // States + enum IterativeParsingState { + IterativeParsingFinishState = 0, // sink states at top + IterativeParsingErrorState, // sink states at top + IterativeParsingStartState, + + // Object states + IterativeParsingObjectInitialState, + IterativeParsingMemberKeyState, + IterativeParsingMemberValueState, + IterativeParsingObjectFinishState, + + // Array states + IterativeParsingArrayInitialState, + IterativeParsingElementState, + IterativeParsingArrayFinishState, + + // Single value state + IterativeParsingValueState, + + // Delimiter states (at bottom) + IterativeParsingElementDelimiterState, + IterativeParsingMemberDelimiterState, + IterativeParsingKeyValueDelimiterState, + + cIterativeParsingStateCount + }; + + // Tokens + enum Token { + LeftBracketToken = 0, + RightBracketToken, + + LeftCurlyBracketToken, + RightCurlyBracketToken, + + CommaToken, + ColonToken, + + StringToken, + FalseToken, + TrueToken, + NullToken, + NumberToken, + + kTokenCount + }; + + RAPIDJSON_FORCEINLINE Token Tokenize(Ch c) const { + +//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN +#define N NumberToken +#define N16 N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N + // Maps from ASCII to Token + static const unsigned char tokenMap[256] = { + N16, // 00~0F + N16, // 10~1F + N, N, StringToken, N, N, N, N, N, N, N, N, N, CommaToken, N, N, N, // 20~2F + N, N, N, N, N, N, N, N, N, N, ColonToken, N, N, N, N, N, // 30~3F + N16, // 40~4F + N, N, N, N, N, N, N, N, N, N, N, LeftBracketToken, N, RightBracketToken, N, N, // 50~5F + N, N, N, N, N, N, FalseToken, N, N, N, N, N, N, N, NullToken, N, // 60~6F + N, N, N, N, TrueToken, N, N, N, N, N, N, LeftCurlyBracketToken, N, RightCurlyBracketToken, N, N, // 70~7F + N16, N16, N16, N16, N16, N16, N16, N16 // 80~FF + }; +#undef N +#undef N16 +//!@endcond + + if (sizeof(Ch) == 1 || static_cast<unsigned>(c) < 256) + return static_cast<Token>(tokenMap[static_cast<unsigned char>(c)]); + else + return NumberToken; + } + + RAPIDJSON_FORCEINLINE IterativeParsingState Predict(IterativeParsingState state, Token token) const { + // current state x one lookahead token -> new state + static const char G[cIterativeParsingStateCount][kTokenCount] = { + // Finish(sink state) + { + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState + }, + // Error(sink state) + { + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState + }, + // Start + { + IterativeParsingArrayInitialState, // Left bracket + IterativeParsingErrorState, // Right bracket + IterativeParsingObjectInitialState, // Left curly bracket + IterativeParsingErrorState, // Right curly bracket + IterativeParsingErrorState, // Comma + IterativeParsingErrorState, // Colon + IterativeParsingValueState, // String + IterativeParsingValueState, // False + IterativeParsingValueState, // True + IterativeParsingValueState, // Null + IterativeParsingValueState // Number + }, + // ObjectInitial + { + IterativeParsingErrorState, // Left bracket + IterativeParsingErrorState, // Right bracket + IterativeParsingErrorState, // Left curly bracket + IterativeParsingObjectFinishState, // Right curly bracket + IterativeParsingErrorState, // Comma + IterativeParsingErrorState, // Colon + IterativeParsingMemberKeyState, // String + IterativeParsingErrorState, // False + IterativeParsingErrorState, // True + IterativeParsingErrorState, // Null + IterativeParsingErrorState // Number + }, + // MemberKey + { + IterativeParsingErrorState, // Left bracket + IterativeParsingErrorState, // Right bracket + IterativeParsingErrorState, // Left curly bracket + IterativeParsingErrorState, // Right curly bracket + IterativeParsingErrorState, // Comma + IterativeParsingKeyValueDelimiterState, // Colon + IterativeParsingErrorState, // String + IterativeParsingErrorState, // False + IterativeParsingErrorState, // True + IterativeParsingErrorState, // Null + IterativeParsingErrorState // Number + }, + // MemberValue + { + IterativeParsingErrorState, // Left bracket + IterativeParsingErrorState, // Right bracket + IterativeParsingErrorState, // Left curly bracket + IterativeParsingObjectFinishState, // Right curly bracket + IterativeParsingMemberDelimiterState, // Comma + IterativeParsingErrorState, // Colon + IterativeParsingErrorState, // String + IterativeParsingErrorState, // False + IterativeParsingErrorState, // True + IterativeParsingErrorState, // Null + IterativeParsingErrorState // Number + }, + // ObjectFinish(sink state) + { + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState + }, + // ArrayInitial + { + IterativeParsingArrayInitialState, // Left bracket(push Element state) + IterativeParsingArrayFinishState, // Right bracket + IterativeParsingObjectInitialState, // Left curly bracket(push Element state) + IterativeParsingErrorState, // Right curly bracket + IterativeParsingErrorState, // Comma + IterativeParsingErrorState, // Colon + IterativeParsingElementState, // String + IterativeParsingElementState, // False + IterativeParsingElementState, // True + IterativeParsingElementState, // Null + IterativeParsingElementState // Number + }, + // Element + { + IterativeParsingErrorState, // Left bracket + IterativeParsingArrayFinishState, // Right bracket + IterativeParsingErrorState, // Left curly bracket + IterativeParsingErrorState, // Right curly bracket + IterativeParsingElementDelimiterState, // Comma + IterativeParsingErrorState, // Colon + IterativeParsingErrorState, // String + IterativeParsingErrorState, // False + IterativeParsingErrorState, // True + IterativeParsingErrorState, // Null + IterativeParsingErrorState // Number + }, + // ArrayFinish(sink state) + { + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState + }, + // Single Value (sink state) + { + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, + IterativeParsingErrorState + }, + // ElementDelimiter + { + IterativeParsingArrayInitialState, // Left bracket(push Element state) + IterativeParsingArrayFinishState, // Right bracket + IterativeParsingObjectInitialState, // Left curly bracket(push Element state) + IterativeParsingErrorState, // Right curly bracket + IterativeParsingErrorState, // Comma + IterativeParsingErrorState, // Colon + IterativeParsingElementState, // String + IterativeParsingElementState, // False + IterativeParsingElementState, // True + IterativeParsingElementState, // Null + IterativeParsingElementState // Number + }, + // MemberDelimiter + { + IterativeParsingErrorState, // Left bracket + IterativeParsingErrorState, // Right bracket + IterativeParsingErrorState, // Left curly bracket + IterativeParsingObjectFinishState, // Right curly bracket + IterativeParsingErrorState, // Comma + IterativeParsingErrorState, // Colon + IterativeParsingMemberKeyState, // String + IterativeParsingErrorState, // False + IterativeParsingErrorState, // True + IterativeParsingErrorState, // Null + IterativeParsingErrorState // Number + }, + // KeyValueDelimiter + { + IterativeParsingArrayInitialState, // Left bracket(push MemberValue state) + IterativeParsingErrorState, // Right bracket + IterativeParsingObjectInitialState, // Left curly bracket(push MemberValue state) + IterativeParsingErrorState, // Right curly bracket + IterativeParsingErrorState, // Comma + IterativeParsingErrorState, // Colon + IterativeParsingMemberValueState, // String + IterativeParsingMemberValueState, // False + IterativeParsingMemberValueState, // True + IterativeParsingMemberValueState, // Null + IterativeParsingMemberValueState // Number + }, + }; // End of G + + return static_cast<IterativeParsingState>(G[state][token]); + } + + // Make an advance in the token stream and state based on the candidate destination state which was returned by Transit(). + // May return a new state on state pop. + template <unsigned parseFlags, typename InputStream, typename Handler> + RAPIDJSON_FORCEINLINE IterativeParsingState Transit(IterativeParsingState src, Token token, IterativeParsingState dst, InputStream& is, Handler& handler) { + (void)token; + + switch (dst) { + case IterativeParsingErrorState: + return dst; + + case IterativeParsingObjectInitialState: + case IterativeParsingArrayInitialState: + { + // Push the state(Element or MemeberValue) if we are nested in another array or value of member. + // In this way we can get the correct state on ObjectFinish or ArrayFinish by frame pop. + IterativeParsingState n = src; + if (src == IterativeParsingArrayInitialState || src == IterativeParsingElementDelimiterState) + n = IterativeParsingElementState; + else if (src == IterativeParsingKeyValueDelimiterState) + n = IterativeParsingMemberValueState; + // Push current state. + *stack_.template Push<SizeType>(1) = n; + // Initialize and push the member/element count. + *stack_.template Push<SizeType>(1) = 0; + // Call handler + bool hr = (dst == IterativeParsingObjectInitialState) ? handler.StartObject() : handler.StartArray(); + // On handler short circuits the parsing. + if (!hr) { + RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorTermination, is.Tell()); + return IterativeParsingErrorState; + } + else { + is.Take(); + return dst; + } + } + + case IterativeParsingMemberKeyState: + ParseString<parseFlags>(is, handler, true); + if (HasParseError()) + return IterativeParsingErrorState; + else + return dst; + + case IterativeParsingKeyValueDelimiterState: + RAPIDJSON_ASSERT(token == ColonToken); + is.Take(); + return dst; + + case IterativeParsingMemberValueState: + // Must be non-compound value. Or it would be ObjectInitial or ArrayInitial state. + ParseValue<parseFlags>(is, handler); + if (HasParseError()) { + return IterativeParsingErrorState; + } + return dst; + + case IterativeParsingElementState: + // Must be non-compound value. Or it would be ObjectInitial or ArrayInitial state. + ParseValue<parseFlags>(is, handler); + if (HasParseError()) { + return IterativeParsingErrorState; + } + return dst; + + case IterativeParsingMemberDelimiterState: + case IterativeParsingElementDelimiterState: + is.Take(); + // Update member/element count. + *stack_.template Top<SizeType>() = *stack_.template Top<SizeType>() + 1; + return dst; + + case IterativeParsingObjectFinishState: + { + // Transit from delimiter is only allowed when trailing commas are enabled + if (!(parseFlags & kParseTrailingCommasFlag) && src == IterativeParsingMemberDelimiterState) { + RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorObjectMissName, is.Tell()); + return IterativeParsingErrorState; + } + // Get member count. + SizeType c = *stack_.template Pop<SizeType>(1); + // If the object is not empty, count the last member. + if (src == IterativeParsingMemberValueState) + ++c; + // Restore the state. + IterativeParsingState n = static_cast<IterativeParsingState>(*stack_.template Pop<SizeType>(1)); + // Transit to Finish state if this is the topmost scope. + if (n == IterativeParsingStartState) + n = IterativeParsingFinishState; + // Call handler + bool hr = handler.EndObject(c); + // On handler short circuits the parsing. + if (!hr) { + RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorTermination, is.Tell()); + return IterativeParsingErrorState; + } + else { + is.Take(); + return n; + } + } + + case IterativeParsingArrayFinishState: + { + // Transit from delimiter is only allowed when trailing commas are enabled + if (!(parseFlags & kParseTrailingCommasFlag) && src == IterativeParsingElementDelimiterState) { + RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorValueInvalid, is.Tell()); + return IterativeParsingErrorState; + } + // Get element count. + SizeType c = *stack_.template Pop<SizeType>(1); + // If the array is not empty, count the last element. + if (src == IterativeParsingElementState) + ++c; + // Restore the state. + IterativeParsingState n = static_cast<IterativeParsingState>(*stack_.template Pop<SizeType>(1)); + // Transit to Finish state if this is the topmost scope. + if (n == IterativeParsingStartState) + n = IterativeParsingFinishState; + // Call handler + bool hr = handler.EndArray(c); + // On handler short circuits the parsing. + if (!hr) { + RAPIDJSON_PARSE_ERROR_NORETURN(kParseErrorTermination, is.Tell()); + return IterativeParsingErrorState; + } + else { + is.Take(); + return n; + } + } + + default: + // This branch is for IterativeParsingValueState actually. + // Use `default:` rather than + // `case IterativeParsingValueState:` is for code coverage. + + // The IterativeParsingStartState is not enumerated in this switch-case. + // It is impossible for that case. And it can be caught by following assertion. + + // The IterativeParsingFinishState is not enumerated in this switch-case either. + // It is a "derivative" state which cannot triggered from Predict() directly. + // Therefore it cannot happen here. And it can be caught by following assertion. + RAPIDJSON_ASSERT(dst == IterativeParsingValueState); + + // Must be non-compound value. Or it would be ObjectInitial or ArrayInitial state. + ParseValue<parseFlags>(is, handler); + if (HasParseError()) { + return IterativeParsingErrorState; + } + return IterativeParsingFinishState; + } + } + + template <typename InputStream> + void HandleError(IterativeParsingState src, InputStream& is) { + if (HasParseError()) { + // Error flag has been set. + return; + } + + switch (src) { + case IterativeParsingStartState: RAPIDJSON_PARSE_ERROR(kParseErrorDocumentEmpty, is.Tell()); return; + case IterativeParsingFinishState: RAPIDJSON_PARSE_ERROR(kParseErrorDocumentRootNotSingular, is.Tell()); return; + case IterativeParsingObjectInitialState: + case IterativeParsingMemberDelimiterState: RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissName, is.Tell()); return; + case IterativeParsingMemberKeyState: RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissColon, is.Tell()); return; + case IterativeParsingMemberValueState: RAPIDJSON_PARSE_ERROR(kParseErrorObjectMissCommaOrCurlyBracket, is.Tell()); return; + case IterativeParsingKeyValueDelimiterState: + case IterativeParsingArrayInitialState: + case IterativeParsingElementDelimiterState: RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, is.Tell()); return; + default: RAPIDJSON_ASSERT(src == IterativeParsingElementState); RAPIDJSON_PARSE_ERROR(kParseErrorArrayMissCommaOrSquareBracket, is.Tell()); return; + } + } + + RAPIDJSON_FORCEINLINE bool IsIterativeParsingDelimiterState(IterativeParsingState s) const { + return s >= IterativeParsingElementDelimiterState; + } + + RAPIDJSON_FORCEINLINE bool IsIterativeParsingCompleteState(IterativeParsingState s) const { + return s <= IterativeParsingErrorState; + } + + template <unsigned parseFlags, typename InputStream, typename Handler> + ParseResult IterativeParse(InputStream& is, Handler& handler) { + parseResult_.Clear(); + ClearStackOnExit scope(*this); + IterativeParsingState state = IterativeParsingStartState; + + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_); + while (is.Peek() != '\0') { + Token t = Tokenize(is.Peek()); + IterativeParsingState n = Predict(state, t); + IterativeParsingState d = Transit<parseFlags>(state, t, n, is, handler); + + if (d == IterativeParsingErrorState) { + HandleError(state, is); + break; + } + + state = d; + + // Do not further consume streams if a root JSON has been parsed. + if ((parseFlags & kParseStopWhenDoneFlag) && state == IterativeParsingFinishState) + break; + + SkipWhitespaceAndComments<parseFlags>(is); + RAPIDJSON_PARSE_ERROR_EARLY_RETURN(parseResult_); + } + + // Handle the end of file. + if (state != IterativeParsingFinishState) + HandleError(state, is); + + return parseResult_; + } + + static const size_t kDefaultStackCapacity = 256; //!< Default stack capacity in bytes for storing a single decoded string. + internal::Stack<StackAllocator> stack_; //!< A stack for storing decoded string temporarily during non-destructive parsing. + ParseResult parseResult_; + IterativeParsingState state_; +}; // class GenericReader + +//! Reader with UTF8 encoding and default allocator. +typedef GenericReader<UTF8<>, UTF8<> > Reader; + +RAPIDJSON_NAMESPACE_END + +#if defined(__clang__) || defined(_MSC_VER) +RAPIDJSON_DIAG_POP +#endif + + +#ifdef __GNUC__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_READER_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_schema.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_schema.h new file mode 100644 index 00000000..963dff2c --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_schema.h @@ -0,0 +1,2496 @@ +// Tencent is pleased to support the open source community by making RapidJSON available-> +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip-> All rights reserved-> +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License-> You may obtain a copy of the License at +// +// http://opensource->org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied-> See the License for the +// specific language governing permissions and limitations under the License-> + +#ifndef RAPIDJSON_SCHEMA_H_ +#define RAPIDJSON_SCHEMA_H_ + +#include "lottie_rapidjson_document.h" +#include "lottie_rapidjson_pointer.h" +#include "lottie_rapidjson_stringbuffer.h" +#include <cmath> // abs, floor + +#if !defined(RAPIDJSON_SCHEMA_USE_INTERNALREGEX) +#define RAPIDJSON_SCHEMA_USE_INTERNALREGEX 1 +#else +#define RAPIDJSON_SCHEMA_USE_INTERNALREGEX 0 +#endif + +#if !RAPIDJSON_SCHEMA_USE_INTERNALREGEX && defined(RAPIDJSON_SCHEMA_USE_STDREGEX) && (__cplusplus >=201103L || (defined(_MSC_VER) && _MSC_VER >= 1800)) +#define RAPIDJSON_SCHEMA_USE_STDREGEX 1 +#else +#define RAPIDJSON_SCHEMA_USE_STDREGEX 0 +#endif + +#if RAPIDJSON_SCHEMA_USE_INTERNALREGEX +#include "lottie_rapidjson_internal_regex.h" +#elif RAPIDJSON_SCHEMA_USE_STDREGEX +#include <regex> +#endif + +#if RAPIDJSON_SCHEMA_USE_INTERNALREGEX || RAPIDJSON_SCHEMA_USE_STDREGEX +#define RAPIDJSON_SCHEMA_HAS_REGEX 1 +#else +#define RAPIDJSON_SCHEMA_HAS_REGEX 0 +#endif + +#ifndef RAPIDJSON_SCHEMA_VERBOSE +#define RAPIDJSON_SCHEMA_VERBOSE 0 +#endif + +#if RAPIDJSON_SCHEMA_VERBOSE +#include "lottie_rapidjson_stringbuffer.h" +#endif + +RAPIDJSON_DIAG_PUSH + +#if defined(__GNUC__) +RAPIDJSON_DIAG_OFF(effc++) +#endif + +#ifdef __clang__ +RAPIDJSON_DIAG_OFF(weak-vtables) +RAPIDJSON_DIAG_OFF(exit-time-destructors) +RAPIDJSON_DIAG_OFF(c++98-compat-pedantic) +RAPIDJSON_DIAG_OFF(variadic-macros) +#elif defined(_MSC_VER) +RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +/////////////////////////////////////////////////////////////////////////////// +// Verbose Utilities + +#if RAPIDJSON_SCHEMA_VERBOSE + +namespace internal { + +inline void PrintInvalidKeyword(const char* keyword) { + printf("Fail keyword: %s\n", keyword); +} + +inline void PrintInvalidKeyword(const wchar_t* keyword) { + wprintf(L"Fail keyword: %ls\n", keyword); +} + +inline void PrintInvalidDocument(const char* document) { + printf("Fail document: %s\n\n", document); +} + +inline void PrintInvalidDocument(const wchar_t* document) { + wprintf(L"Fail document: %ls\n\n", document); +} + +inline void PrintValidatorPointers(unsigned depth, const char* s, const char* d) { + printf("S: %*s%s\nD: %*s%s\n\n", depth * 4, " ", s, depth * 4, " ", d); +} + +inline void PrintValidatorPointers(unsigned depth, const wchar_t* s, const wchar_t* d) { + wprintf(L"S: %*ls%ls\nD: %*ls%ls\n\n", depth * 4, L" ", s, depth * 4, L" ", d); +} + +} // namespace internal + +#endif // RAPIDJSON_SCHEMA_VERBOSE + +/////////////////////////////////////////////////////////////////////////////// +// RAPIDJSON_INVALID_KEYWORD_RETURN + +#if RAPIDJSON_SCHEMA_VERBOSE +#define RAPIDJSON_INVALID_KEYWORD_VERBOSE(keyword) internal::PrintInvalidKeyword(keyword) +#else +#define RAPIDJSON_INVALID_KEYWORD_VERBOSE(keyword) +#endif + +#define RAPIDJSON_INVALID_KEYWORD_RETURN(keyword)\ +RAPIDJSON_MULTILINEMACRO_BEGIN\ + context.invalidKeyword = keyword.GetString();\ + RAPIDJSON_INVALID_KEYWORD_VERBOSE(keyword.GetString());\ + return false;\ +RAPIDJSON_MULTILINEMACRO_END + +/////////////////////////////////////////////////////////////////////////////// +// Forward declarations + +template <typename ValueType, typename Allocator> +class GenericSchemaDocument; + +namespace internal { + +template <typename SchemaDocumentType> +class Schema; + +/////////////////////////////////////////////////////////////////////////////// +// ISchemaValidator + +class ISchemaValidator { +public: + virtual ~ISchemaValidator() {} + virtual bool IsValid() const = 0; +}; + +/////////////////////////////////////////////////////////////////////////////// +// ISchemaStateFactory + +template <typename SchemaType> +class ISchemaStateFactory { +public: + virtual ~ISchemaStateFactory() {} + virtual ISchemaValidator* CreateSchemaValidator(const SchemaType&) = 0; + virtual void DestroySchemaValidator(ISchemaValidator* validator) = 0; + virtual void* CreateHasher() = 0; + virtual uint64_t GetHashCode(void* hasher) = 0; + virtual void DestroryHasher(void* hasher) = 0; + virtual void* MallocState(size_t size) = 0; + virtual void FreeState(void* p) = 0; +}; + +/////////////////////////////////////////////////////////////////////////////// +// IValidationErrorHandler + +template <typename SchemaType> +class IValidationErrorHandler { +public: + typedef typename SchemaType::Ch Ch; + typedef typename SchemaType::SValue SValue; + + virtual ~IValidationErrorHandler() {} + + virtual void NotMultipleOf(int64_t actual, const SValue& expected) = 0; + virtual void NotMultipleOf(uint64_t actual, const SValue& expected) = 0; + virtual void NotMultipleOf(double actual, const SValue& expected) = 0; + virtual void AboveMaximum(int64_t actual, const SValue& expected, bool exclusive) = 0; + virtual void AboveMaximum(uint64_t actual, const SValue& expected, bool exclusive) = 0; + virtual void AboveMaximum(double actual, const SValue& expected, bool exclusive) = 0; + virtual void BelowMinimum(int64_t actual, const SValue& expected, bool exclusive) = 0; + virtual void BelowMinimum(uint64_t actual, const SValue& expected, bool exclusive) = 0; + virtual void BelowMinimum(double actual, const SValue& expected, bool exclusive) = 0; + + virtual void TooLong(const Ch* str, SizeType length, SizeType expected) = 0; + virtual void TooShort(const Ch* str, SizeType length, SizeType expected) = 0; + virtual void DoesNotMatch(const Ch* str, SizeType length) = 0; + + virtual void DisallowedItem(SizeType index) = 0; + virtual void TooFewItems(SizeType actualCount, SizeType expectedCount) = 0; + virtual void TooManyItems(SizeType actualCount, SizeType expectedCount) = 0; + virtual void DuplicateItems(SizeType index1, SizeType index2) = 0; + + virtual void TooManyProperties(SizeType actualCount, SizeType expectedCount) = 0; + virtual void TooFewProperties(SizeType actualCount, SizeType expectedCount) = 0; + virtual void StartMissingProperties() = 0; + virtual void AddMissingProperty(const SValue& name) = 0; + virtual bool EndMissingProperties() = 0; + virtual void PropertyViolations(ISchemaValidator** subvalidators, SizeType count) = 0; + virtual void DisallowedProperty(const Ch* name, SizeType length) = 0; + + virtual void StartDependencyErrors() = 0; + virtual void StartMissingDependentProperties() = 0; + virtual void AddMissingDependentProperty(const SValue& targetName) = 0; + virtual void EndMissingDependentProperties(const SValue& sourceName) = 0; + virtual void AddDependencySchemaError(const SValue& souceName, ISchemaValidator* subvalidator) = 0; + virtual bool EndDependencyErrors() = 0; + + virtual void DisallowedValue() = 0; + virtual void StartDisallowedType() = 0; + virtual void AddExpectedType(const typename SchemaType::ValueType& expectedType) = 0; + virtual void EndDisallowedType(const typename SchemaType::ValueType& actualType) = 0; + virtual void NotAllOf(ISchemaValidator** subvalidators, SizeType count) = 0; + virtual void NoneOf(ISchemaValidator** subvalidators, SizeType count) = 0; + virtual void NotOneOf(ISchemaValidator** subvalidators, SizeType count) = 0; + virtual void Disallowed() = 0; +}; + + +/////////////////////////////////////////////////////////////////////////////// +// Hasher + +// For comparison of compound value +template<typename Encoding, typename Allocator> +class Hasher { +public: + typedef typename Encoding::Ch Ch; + + Hasher(Allocator* allocator = 0, size_t stackCapacity = kDefaultSize) : stack_(allocator, stackCapacity) {} + + bool Null() { return WriteType(kNullType); } + bool Bool(bool b) { return WriteType(b ? kTrueType : kFalseType); } + bool Int(int i) { Number n; n.u.i = i; n.d = static_cast<double>(i); return WriteNumber(n); } + bool Uint(unsigned u) { Number n; n.u.u = u; n.d = static_cast<double>(u); return WriteNumber(n); } + bool Int64(int64_t i) { Number n; n.u.i = i; n.d = static_cast<double>(i); return WriteNumber(n); } + bool Uint64(uint64_t u) { Number n; n.u.u = u; n.d = static_cast<double>(u); return WriteNumber(n); } + bool Double(double d) { + Number n; + if (d < 0) n.u.i = static_cast<int64_t>(d); + else n.u.u = static_cast<uint64_t>(d); + n.d = d; + return WriteNumber(n); + } + + bool RawNumber(const Ch* str, SizeType len, bool) { + WriteBuffer(kNumberType, str, len * sizeof(Ch)); + return true; + } + + bool String(const Ch* str, SizeType len, bool) { + WriteBuffer(kStringType, str, len * sizeof(Ch)); + return true; + } + + bool StartObject() { return true; } + bool Key(const Ch* str, SizeType len, bool copy) { return String(str, len, copy); } + bool EndObject(SizeType memberCount) { + uint64_t h = Hash(0, kObjectType); + uint64_t* kv = stack_.template Pop<uint64_t>(memberCount * 2); + for (SizeType i = 0; i < memberCount; i++) + h ^= Hash(kv[i * 2], kv[i * 2 + 1]); // Use xor to achieve member order insensitive + *stack_.template Push<uint64_t>() = h; + return true; + } + + bool StartArray() { return true; } + bool EndArray(SizeType elementCount) { + uint64_t h = Hash(0, kArrayType); + uint64_t* e = stack_.template Pop<uint64_t>(elementCount); + for (SizeType i = 0; i < elementCount; i++) + h = Hash(h, e[i]); // Use hash to achieve element order sensitive + *stack_.template Push<uint64_t>() = h; + return true; + } + + bool IsValid() const { return stack_.GetSize() == sizeof(uint64_t); } + + uint64_t GetHashCode() const { + RAPIDJSON_ASSERT(IsValid()); + return *stack_.template Top<uint64_t>(); + } + +private: + static const size_t kDefaultSize = 256; + struct Number { + union U { + uint64_t u; + int64_t i; + }u; + double d; + }; + + bool WriteType(Type type) { return WriteBuffer(type, 0, 0); } + + bool WriteNumber(const Number& n) { return WriteBuffer(kNumberType, &n, sizeof(n)); } + + bool WriteBuffer(Type type, const void* data, size_t len) { + // FNV-1a from http://isthe.com/chongo/tech/comp/fnv/ + uint64_t h = Hash(RAPIDJSON_UINT64_C2(0x84222325, 0xcbf29ce4), type); + const unsigned char* d = static_cast<const unsigned char*>(data); + for (size_t i = 0; i < len; i++) + h = Hash(h, d[i]); + *stack_.template Push<uint64_t>() = h; + return true; + } + + static uint64_t Hash(uint64_t h, uint64_t d) { + static const uint64_t kPrime = RAPIDJSON_UINT64_C2(0x00000100, 0x000001b3); + h ^= d; + h *= kPrime; + return h; + } + + Stack<Allocator> stack_; +}; + +/////////////////////////////////////////////////////////////////////////////// +// SchemaValidationContext + +template <typename SchemaDocumentType> +struct SchemaValidationContext { + typedef Schema<SchemaDocumentType> SchemaType; + typedef ISchemaStateFactory<SchemaType> SchemaValidatorFactoryType; + typedef IValidationErrorHandler<SchemaType> ErrorHandlerType; + typedef typename SchemaType::ValueType ValueType; + typedef typename ValueType::Ch Ch; + + enum PatternValidatorType { + kPatternValidatorOnly, + kPatternValidatorWithProperty, + kPatternValidatorWithAdditionalProperty + }; + + SchemaValidationContext(SchemaValidatorFactoryType& f, ErrorHandlerType& eh, const SchemaType* s) : + factory(f), + error_handler(eh), + schema(s), + valueSchema(), + invalidKeyword(), + hasher(), + arrayElementHashCodes(), + validators(), + validatorCount(), + patternPropertiesValidators(), + patternPropertiesValidatorCount(), + patternPropertiesSchemas(), + patternPropertiesSchemaCount(), + valuePatternValidatorType(kPatternValidatorOnly), + propertyExist(), + inArray(false), + valueUniqueness(false), + arrayUniqueness(false) + { + } + + ~SchemaValidationContext() { + if (hasher) + factory.DestroryHasher(hasher); + if (validators) { + for (SizeType i = 0; i < validatorCount; i++) + factory.DestroySchemaValidator(validators[i]); + factory.FreeState(validators); + } + if (patternPropertiesValidators) { + for (SizeType i = 0; i < patternPropertiesValidatorCount; i++) + factory.DestroySchemaValidator(patternPropertiesValidators[i]); + factory.FreeState(patternPropertiesValidators); + } + if (patternPropertiesSchemas) + factory.FreeState(patternPropertiesSchemas); + if (propertyExist) + factory.FreeState(propertyExist); + } + + SchemaValidatorFactoryType& factory; + ErrorHandlerType& error_handler; + const SchemaType* schema; + const SchemaType* valueSchema; + const Ch* invalidKeyword; + void* hasher; // Only validator access + void* arrayElementHashCodes; // Only validator access this + ISchemaValidator** validators; + SizeType validatorCount; + ISchemaValidator** patternPropertiesValidators; + SizeType patternPropertiesValidatorCount; + const SchemaType** patternPropertiesSchemas; + SizeType patternPropertiesSchemaCount; + PatternValidatorType valuePatternValidatorType; + PatternValidatorType objectPatternValidatorType; + SizeType arrayElementIndex; + bool* propertyExist; + bool inArray; + bool valueUniqueness; + bool arrayUniqueness; +}; + +/////////////////////////////////////////////////////////////////////////////// +// Schema + +template <typename SchemaDocumentType> +class Schema { +public: + typedef typename SchemaDocumentType::ValueType ValueType; + typedef typename SchemaDocumentType::AllocatorType AllocatorType; + typedef typename SchemaDocumentType::PointerType PointerType; + typedef typename ValueType::EncodingType EncodingType; + typedef typename EncodingType::Ch Ch; + typedef SchemaValidationContext<SchemaDocumentType> Context; + typedef Schema<SchemaDocumentType> SchemaType; + typedef GenericValue<EncodingType, AllocatorType> SValue; + typedef IValidationErrorHandler<Schema> ErrorHandler; + friend class GenericSchemaDocument<ValueType, AllocatorType>; + + Schema(SchemaDocumentType* schemaDocument, const PointerType& p, const ValueType& value, const ValueType& document, AllocatorType* allocator) : + allocator_(allocator), + uri_(schemaDocument->GetURI(), *allocator), + pointer_(p, allocator), + typeless_(schemaDocument->GetTypeless()), + enum_(), + enumCount_(), + not_(), + type_((1 << kTotalSchemaType) - 1), // typeless + validatorCount_(), + notValidatorIndex_(), + properties_(), + additionalPropertiesSchema_(), + patternProperties_(), + patternPropertyCount_(), + propertyCount_(), + minProperties_(), + maxProperties_(SizeType(~0)), + additionalProperties_(true), + hasDependencies_(), + hasRequired_(), + hasSchemaDependencies_(), + additionalItemsSchema_(), + itemsList_(), + itemsTuple_(), + itemsTupleCount_(), + minItems_(), + maxItems_(SizeType(~0)), + additionalItems_(true), + uniqueItems_(false), + pattern_(), + minLength_(0), + maxLength_(~SizeType(0)), + exclusiveMinimum_(false), + exclusiveMaximum_(false), + defaultValueLength_(0) + { + typedef typename ValueType::ConstValueIterator ConstValueIterator; + typedef typename ValueType::ConstMemberIterator ConstMemberIterator; + + if (!value.IsObject()) + return; + + if (const ValueType* v = GetMember(value, GetTypeString())) { + type_ = 0; + if (v->IsString()) + AddType(*v); + else if (v->IsArray()) + for (ConstValueIterator itr = v->Begin(); itr != v->End(); ++itr) + AddType(*itr); + } + + if (const ValueType* v = GetMember(value, GetEnumString())) + if (v->IsArray() && v->Size() > 0) { + enum_ = static_cast<uint64_t*>(allocator_->Malloc(sizeof(uint64_t) * v->Size())); + for (ConstValueIterator itr = v->Begin(); itr != v->End(); ++itr) { + typedef Hasher<EncodingType, MemoryPoolAllocator<> > EnumHasherType; + char buffer[256u + 24]; + MemoryPoolAllocator<> hasherAllocator(buffer, sizeof(buffer)); + EnumHasherType h(&hasherAllocator, 256); + itr->Accept(h); + enum_[enumCount_++] = h.GetHashCode(); + } + } + + if (schemaDocument) { + AssignIfExist(allOf_, *schemaDocument, p, value, GetAllOfString(), document); + AssignIfExist(anyOf_, *schemaDocument, p, value, GetAnyOfString(), document); + AssignIfExist(oneOf_, *schemaDocument, p, value, GetOneOfString(), document); + } + + if (const ValueType* v = GetMember(value, GetNotString())) { + schemaDocument->CreateSchema(¬_, p.Append(GetNotString(), allocator_), *v, document); + notValidatorIndex_ = validatorCount_; + validatorCount_++; + } + + // Object + + const ValueType* properties = GetMember(value, GetPropertiesString()); + const ValueType* required = GetMember(value, GetRequiredString()); + const ValueType* dependencies = GetMember(value, GetDependenciesString()); + { + // Gather properties from properties/required/dependencies + SValue allProperties(kArrayType); + + if (properties && properties->IsObject()) + for (ConstMemberIterator itr = properties->MemberBegin(); itr != properties->MemberEnd(); ++itr) + AddUniqueElement(allProperties, itr->name); + + if (required && required->IsArray()) + for (ConstValueIterator itr = required->Begin(); itr != required->End(); ++itr) + if (itr->IsString()) + AddUniqueElement(allProperties, *itr); + + if (dependencies && dependencies->IsObject()) + for (ConstMemberIterator itr = dependencies->MemberBegin(); itr != dependencies->MemberEnd(); ++itr) { + AddUniqueElement(allProperties, itr->name); + if (itr->value.IsArray()) + for (ConstValueIterator i = itr->value.Begin(); i != itr->value.End(); ++i) + if (i->IsString()) + AddUniqueElement(allProperties, *i); + } + + if (allProperties.Size() > 0) { + propertyCount_ = allProperties.Size(); + properties_ = static_cast<Property*>(allocator_->Malloc(sizeof(Property) * propertyCount_)); + for (SizeType i = 0; i < propertyCount_; i++) { + new (&properties_[i]) Property(); + properties_[i].name = allProperties[i]; + properties_[i].schema = typeless_; + } + } + } + + if (properties && properties->IsObject()) { + PointerType q = p.Append(GetPropertiesString(), allocator_); + for (ConstMemberIterator itr = properties->MemberBegin(); itr != properties->MemberEnd(); ++itr) { + SizeType index; + if (FindPropertyIndex(itr->name, &index)) + schemaDocument->CreateSchema(&properties_[index].schema, q.Append(itr->name, allocator_), itr->value, document); + } + } + + if (const ValueType* v = GetMember(value, GetPatternPropertiesString())) { + PointerType q = p.Append(GetPatternPropertiesString(), allocator_); + patternProperties_ = static_cast<PatternProperty*>(allocator_->Malloc(sizeof(PatternProperty) * v->MemberCount())); + patternPropertyCount_ = 0; + + for (ConstMemberIterator itr = v->MemberBegin(); itr != v->MemberEnd(); ++itr) { + new (&patternProperties_[patternPropertyCount_]) PatternProperty(); + patternProperties_[patternPropertyCount_].pattern = CreatePattern(itr->name); + schemaDocument->CreateSchema(&patternProperties_[patternPropertyCount_].schema, q.Append(itr->name, allocator_), itr->value, document); + patternPropertyCount_++; + } + } + + if (required && required->IsArray()) + for (ConstValueIterator itr = required->Begin(); itr != required->End(); ++itr) + if (itr->IsString()) { + SizeType index; + if (FindPropertyIndex(*itr, &index)) { + properties_[index].required = true; + hasRequired_ = true; + } + } + + if (dependencies && dependencies->IsObject()) { + PointerType q = p.Append(GetDependenciesString(), allocator_); + hasDependencies_ = true; + for (ConstMemberIterator itr = dependencies->MemberBegin(); itr != dependencies->MemberEnd(); ++itr) { + SizeType sourceIndex; + if (FindPropertyIndex(itr->name, &sourceIndex)) { + if (itr->value.IsArray()) { + properties_[sourceIndex].dependencies = static_cast<bool*>(allocator_->Malloc(sizeof(bool) * propertyCount_)); + std::memset(properties_[sourceIndex].dependencies, 0, sizeof(bool)* propertyCount_); + for (ConstValueIterator targetItr = itr->value.Begin(); targetItr != itr->value.End(); ++targetItr) { + SizeType targetIndex; + if (FindPropertyIndex(*targetItr, &targetIndex)) + properties_[sourceIndex].dependencies[targetIndex] = true; + } + } + else if (itr->value.IsObject()) { + hasSchemaDependencies_ = true; + schemaDocument->CreateSchema(&properties_[sourceIndex].dependenciesSchema, q.Append(itr->name, allocator_), itr->value, document); + properties_[sourceIndex].dependenciesValidatorIndex = validatorCount_; + validatorCount_++; + } + } + } + } + + if (const ValueType* v = GetMember(value, GetAdditionalPropertiesString())) { + if (v->IsBool()) + additionalProperties_ = v->GetBool(); + else if (v->IsObject()) + schemaDocument->CreateSchema(&additionalPropertiesSchema_, p.Append(GetAdditionalPropertiesString(), allocator_), *v, document); + } + + AssignIfExist(minProperties_, value, GetMinPropertiesString()); + AssignIfExist(maxProperties_, value, GetMaxPropertiesString()); + + // Array + if (const ValueType* v = GetMember(value, GetItemsString())) { + PointerType q = p.Append(GetItemsString(), allocator_); + if (v->IsObject()) // List validation + schemaDocument->CreateSchema(&itemsList_, q, *v, document); + else if (v->IsArray()) { // Tuple validation + itemsTuple_ = static_cast<const Schema**>(allocator_->Malloc(sizeof(const Schema*) * v->Size())); + SizeType index = 0; + for (ConstValueIterator itr = v->Begin(); itr != v->End(); ++itr, index++) + schemaDocument->CreateSchema(&itemsTuple_[itemsTupleCount_++], q.Append(index, allocator_), *itr, document); + } + } + + AssignIfExist(minItems_, value, GetMinItemsString()); + AssignIfExist(maxItems_, value, GetMaxItemsString()); + + if (const ValueType* v = GetMember(value, GetAdditionalItemsString())) { + if (v->IsBool()) + additionalItems_ = v->GetBool(); + else if (v->IsObject()) + schemaDocument->CreateSchema(&additionalItemsSchema_, p.Append(GetAdditionalItemsString(), allocator_), *v, document); + } + + AssignIfExist(uniqueItems_, value, GetUniqueItemsString()); + + // String + AssignIfExist(minLength_, value, GetMinLengthString()); + AssignIfExist(maxLength_, value, GetMaxLengthString()); + + if (const ValueType* v = GetMember(value, GetPatternString())) + pattern_ = CreatePattern(*v); + + // Number + if (const ValueType* v = GetMember(value, GetMinimumString())) + if (v->IsNumber()) + minimum_.CopyFrom(*v, *allocator_); + + if (const ValueType* v = GetMember(value, GetMaximumString())) + if (v->IsNumber()) + maximum_.CopyFrom(*v, *allocator_); + + AssignIfExist(exclusiveMinimum_, value, GetExclusiveMinimumString()); + AssignIfExist(exclusiveMaximum_, value, GetExclusiveMaximumString()); + + if (const ValueType* v = GetMember(value, GetMultipleOfString())) + if (v->IsNumber() && v->GetDouble() > 0.0) + multipleOf_.CopyFrom(*v, *allocator_); + + // Default + if (const ValueType* v = GetMember(value, GetDefaultValueString())) + if (v->IsString()) + defaultValueLength_ = v->GetStringLength(); + + } + + ~Schema() { + AllocatorType::Free(enum_); + if (properties_) { + for (SizeType i = 0; i < propertyCount_; i++) + properties_[i].~Property(); + AllocatorType::Free(properties_); + } + if (patternProperties_) { + for (SizeType i = 0; i < patternPropertyCount_; i++) + patternProperties_[i].~PatternProperty(); + AllocatorType::Free(patternProperties_); + } + AllocatorType::Free(itemsTuple_); +#if RAPIDJSON_SCHEMA_HAS_REGEX + if (pattern_) { + pattern_->~RegexType(); + AllocatorType::Free(pattern_); + } +#endif + } + + const SValue& GetURI() const { + return uri_; + } + + const PointerType& GetPointer() const { + return pointer_; + } + + bool BeginValue(Context& context) const { + if (context.inArray) { + if (uniqueItems_) + context.valueUniqueness = true; + + if (itemsList_) + context.valueSchema = itemsList_; + else if (itemsTuple_) { + if (context.arrayElementIndex < itemsTupleCount_) + context.valueSchema = itemsTuple_[context.arrayElementIndex]; + else if (additionalItemsSchema_) + context.valueSchema = additionalItemsSchema_; + else if (additionalItems_) + context.valueSchema = typeless_; + else { + context.error_handler.DisallowedItem(context.arrayElementIndex); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetItemsString()); + } + } + else + context.valueSchema = typeless_; + + context.arrayElementIndex++; + } + return true; + } + + RAPIDJSON_FORCEINLINE bool EndValue(Context& context) const { + if (context.patternPropertiesValidatorCount > 0) { + bool otherValid = false; + SizeType count = context.patternPropertiesValidatorCount; + if (context.objectPatternValidatorType != Context::kPatternValidatorOnly) + otherValid = context.patternPropertiesValidators[--count]->IsValid(); + + bool patternValid = true; + for (SizeType i = 0; i < count; i++) + if (!context.patternPropertiesValidators[i]->IsValid()) { + patternValid = false; + break; + } + + if (context.objectPatternValidatorType == Context::kPatternValidatorOnly) { + if (!patternValid) { + context.error_handler.PropertyViolations(context.patternPropertiesValidators, count); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetPatternPropertiesString()); + } + } + else if (context.objectPatternValidatorType == Context::kPatternValidatorWithProperty) { + if (!patternValid || !otherValid) { + context.error_handler.PropertyViolations(context.patternPropertiesValidators, count + 1); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetPatternPropertiesString()); + } + } + else if (!patternValid && !otherValid) { // kPatternValidatorWithAdditionalProperty) + context.error_handler.PropertyViolations(context.patternPropertiesValidators, count + 1); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetPatternPropertiesString()); + } + } + + if (enum_) { + const uint64_t h = context.factory.GetHashCode(context.hasher); + for (SizeType i = 0; i < enumCount_; i++) + if (enum_[i] == h) + goto foundEnum; + context.error_handler.DisallowedValue(); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetEnumString()); + foundEnum:; + } + + if (allOf_.schemas) + for (SizeType i = allOf_.begin; i < allOf_.begin + allOf_.count; i++) + if (!context.validators[i]->IsValid()) { + context.error_handler.NotAllOf(&context.validators[allOf_.begin], allOf_.count); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetAllOfString()); + } + + if (anyOf_.schemas) { + for (SizeType i = anyOf_.begin; i < anyOf_.begin + anyOf_.count; i++) + if (context.validators[i]->IsValid()) + goto foundAny; + context.error_handler.NoneOf(&context.validators[anyOf_.begin], anyOf_.count); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetAnyOfString()); + foundAny:; + } + + if (oneOf_.schemas) { + bool oneValid = false; + for (SizeType i = oneOf_.begin; i < oneOf_.begin + oneOf_.count; i++) + if (context.validators[i]->IsValid()) { + if (oneValid) { + context.error_handler.NotOneOf(&context.validators[oneOf_.begin], oneOf_.count); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetOneOfString()); + } else + oneValid = true; + } + if (!oneValid) { + context.error_handler.NotOneOf(&context.validators[oneOf_.begin], oneOf_.count); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetOneOfString()); + } + } + + if (not_ && context.validators[notValidatorIndex_]->IsValid()) { + context.error_handler.Disallowed(); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetNotString()); + } + + return true; + } + + bool Null(Context& context) const { + if (!(type_ & (1 << kNullSchemaType))) { + DisallowedType(context, GetNullString()); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString()); + } + return CreateParallelValidator(context); + } + + bool Bool(Context& context, bool) const { + if (!(type_ & (1 << kBooleanSchemaType))) { + DisallowedType(context, GetBooleanString()); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString()); + } + return CreateParallelValidator(context); + } + + bool Int(Context& context, int i) const { + if (!CheckInt(context, i)) + return false; + return CreateParallelValidator(context); + } + + bool Uint(Context& context, unsigned u) const { + if (!CheckUint(context, u)) + return false; + return CreateParallelValidator(context); + } + + bool Int64(Context& context, int64_t i) const { + if (!CheckInt(context, i)) + return false; + return CreateParallelValidator(context); + } + + bool Uint64(Context& context, uint64_t u) const { + if (!CheckUint(context, u)) + return false; + return CreateParallelValidator(context); + } + + bool Double(Context& context, double d) const { + if (!(type_ & (1 << kNumberSchemaType))) { + DisallowedType(context, GetNumberString()); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString()); + } + + if (!minimum_.IsNull() && !CheckDoubleMinimum(context, d)) + return false; + + if (!maximum_.IsNull() && !CheckDoubleMaximum(context, d)) + return false; + + if (!multipleOf_.IsNull() && !CheckDoubleMultipleOf(context, d)) + return false; + + return CreateParallelValidator(context); + } + + bool String(Context& context, const Ch* str, SizeType length, bool) const { + if (!(type_ & (1 << kStringSchemaType))) { + DisallowedType(context, GetStringString()); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString()); + } + + if (minLength_ != 0 || maxLength_ != SizeType(~0)) { + SizeType count; + if (internal::CountStringCodePoint<EncodingType>(str, length, &count)) { + if (count < minLength_) { + context.error_handler.TooShort(str, length, minLength_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinLengthString()); + } + if (count > maxLength_) { + context.error_handler.TooLong(str, length, maxLength_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaxLengthString()); + } + } + } + + if (pattern_ && !IsPatternMatch(pattern_, str, length)) { + context.error_handler.DoesNotMatch(str, length); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetPatternString()); + } + + return CreateParallelValidator(context); + } + + bool StartObject(Context& context) const { + if (!(type_ & (1 << kObjectSchemaType))) { + DisallowedType(context, GetObjectString()); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString()); + } + + if (hasDependencies_ || hasRequired_) { + context.propertyExist = static_cast<bool*>(context.factory.MallocState(sizeof(bool) * propertyCount_)); + std::memset(context.propertyExist, 0, sizeof(bool) * propertyCount_); + } + + if (patternProperties_) { // pre-allocate schema array + SizeType count = patternPropertyCount_ + 1; // extra for valuePatternValidatorType + context.patternPropertiesSchemas = static_cast<const SchemaType**>(context.factory.MallocState(sizeof(const SchemaType*) * count)); + context.patternPropertiesSchemaCount = 0; + std::memset(context.patternPropertiesSchemas, 0, sizeof(SchemaType*) * count); + } + + return CreateParallelValidator(context); + } + + bool Key(Context& context, const Ch* str, SizeType len, bool) const { + if (patternProperties_) { + context.patternPropertiesSchemaCount = 0; + for (SizeType i = 0; i < patternPropertyCount_; i++) + if (patternProperties_[i].pattern && IsPatternMatch(patternProperties_[i].pattern, str, len)) { + context.patternPropertiesSchemas[context.patternPropertiesSchemaCount++] = patternProperties_[i].schema; + context.valueSchema = typeless_; + } + } + + SizeType index = 0; + if (FindPropertyIndex(ValueType(str, len).Move(), &index)) { + if (context.patternPropertiesSchemaCount > 0) { + context.patternPropertiesSchemas[context.patternPropertiesSchemaCount++] = properties_[index].schema; + context.valueSchema = typeless_; + context.valuePatternValidatorType = Context::kPatternValidatorWithProperty; + } + else + context.valueSchema = properties_[index].schema; + + if (context.propertyExist) + context.propertyExist[index] = true; + + return true; + } + + if (additionalPropertiesSchema_) { + if (additionalPropertiesSchema_ && context.patternPropertiesSchemaCount > 0) { + context.patternPropertiesSchemas[context.patternPropertiesSchemaCount++] = additionalPropertiesSchema_; + context.valueSchema = typeless_; + context.valuePatternValidatorType = Context::kPatternValidatorWithAdditionalProperty; + } + else + context.valueSchema = additionalPropertiesSchema_; + return true; + } + else if (additionalProperties_) { + context.valueSchema = typeless_; + return true; + } + + if (context.patternPropertiesSchemaCount == 0) { // patternProperties are not additional properties + context.error_handler.DisallowedProperty(str, len); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetAdditionalPropertiesString()); + } + + return true; + } + + bool EndObject(Context& context, SizeType memberCount) const { + if (hasRequired_) { + context.error_handler.StartMissingProperties(); + for (SizeType index = 0; index < propertyCount_; index++) + if (properties_[index].required && !context.propertyExist[index]) + if (properties_[index].schema->defaultValueLength_ == 0 ) + context.error_handler.AddMissingProperty(properties_[index].name); + if (context.error_handler.EndMissingProperties()) + RAPIDJSON_INVALID_KEYWORD_RETURN(GetRequiredString()); + } + + if (memberCount < minProperties_) { + context.error_handler.TooFewProperties(memberCount, minProperties_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinPropertiesString()); + } + + if (memberCount > maxProperties_) { + context.error_handler.TooManyProperties(memberCount, maxProperties_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaxPropertiesString()); + } + + if (hasDependencies_) { + context.error_handler.StartDependencyErrors(); + for (SizeType sourceIndex = 0; sourceIndex < propertyCount_; sourceIndex++) { + const Property& source = properties_[sourceIndex]; + if (context.propertyExist[sourceIndex]) { + if (source.dependencies) { + context.error_handler.StartMissingDependentProperties(); + for (SizeType targetIndex = 0; targetIndex < propertyCount_; targetIndex++) + if (source.dependencies[targetIndex] && !context.propertyExist[targetIndex]) + context.error_handler.AddMissingDependentProperty(properties_[targetIndex].name); + context.error_handler.EndMissingDependentProperties(source.name); + } + else if (source.dependenciesSchema) { + ISchemaValidator* dependenciesValidator = context.validators[source.dependenciesValidatorIndex]; + if (!dependenciesValidator->IsValid()) + context.error_handler.AddDependencySchemaError(source.name, dependenciesValidator); + } + } + } + if (context.error_handler.EndDependencyErrors()) + RAPIDJSON_INVALID_KEYWORD_RETURN(GetDependenciesString()); + } + + return true; + } + + bool StartArray(Context& context) const { + if (!(type_ & (1 << kArraySchemaType))) { + DisallowedType(context, GetArrayString()); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString()); + } + + context.arrayElementIndex = 0; + context.inArray = true; + + return CreateParallelValidator(context); + } + + bool EndArray(Context& context, SizeType elementCount) const { + context.inArray = false; + + if (elementCount < minItems_) { + context.error_handler.TooFewItems(elementCount, minItems_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinItemsString()); + } + + if (elementCount > maxItems_) { + context.error_handler.TooManyItems(elementCount, maxItems_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaxItemsString()); + } + + return true; + } + + // Generate functions for string literal according to Ch +#define RAPIDJSON_STRING_(name, ...) \ + static const ValueType& Get##name##String() {\ + static const Ch s[] = { __VA_ARGS__, '\0' };\ + static const ValueType v(s, static_cast<SizeType>(sizeof(s) / sizeof(Ch) - 1));\ + return v;\ + } + + RAPIDJSON_STRING_(Null, 'n', 'u', 'l', 'l') + RAPIDJSON_STRING_(Boolean, 'b', 'o', 'o', 'l', 'e', 'a', 'n') + RAPIDJSON_STRING_(Object, 'o', 'b', 'j', 'e', 'c', 't') + RAPIDJSON_STRING_(Array, 'a', 'r', 'r', 'a', 'y') + RAPIDJSON_STRING_(String, 's', 't', 'r', 'i', 'n', 'g') + RAPIDJSON_STRING_(Number, 'n', 'u', 'm', 'b', 'e', 'r') + RAPIDJSON_STRING_(Integer, 'i', 'n', 't', 'e', 'g', 'e', 'r') + RAPIDJSON_STRING_(Type, 't', 'y', 'p', 'e') + RAPIDJSON_STRING_(Enum, 'e', 'n', 'u', 'm') + RAPIDJSON_STRING_(AllOf, 'a', 'l', 'l', 'O', 'f') + RAPIDJSON_STRING_(AnyOf, 'a', 'n', 'y', 'O', 'f') + RAPIDJSON_STRING_(OneOf, 'o', 'n', 'e', 'O', 'f') + RAPIDJSON_STRING_(Not, 'n', 'o', 't') + RAPIDJSON_STRING_(Properties, 'p', 'r', 'o', 'p', 'e', 'r', 't', 'i', 'e', 's') + RAPIDJSON_STRING_(Required, 'r', 'e', 'q', 'u', 'i', 'r', 'e', 'd') + RAPIDJSON_STRING_(Dependencies, 'd', 'e', 'p', 'e', 'n', 'd', 'e', 'n', 'c', 'i', 'e', 's') + RAPIDJSON_STRING_(PatternProperties, 'p', 'a', 't', 't', 'e', 'r', 'n', 'P', 'r', 'o', 'p', 'e', 'r', 't', 'i', 'e', 's') + RAPIDJSON_STRING_(AdditionalProperties, 'a', 'd', 'd', 'i', 't', 'i', 'o', 'n', 'a', 'l', 'P', 'r', 'o', 'p', 'e', 'r', 't', 'i', 'e', 's') + RAPIDJSON_STRING_(MinProperties, 'm', 'i', 'n', 'P', 'r', 'o', 'p', 'e', 'r', 't', 'i', 'e', 's') + RAPIDJSON_STRING_(MaxProperties, 'm', 'a', 'x', 'P', 'r', 'o', 'p', 'e', 'r', 't', 'i', 'e', 's') + RAPIDJSON_STRING_(Items, 'i', 't', 'e', 'm', 's') + RAPIDJSON_STRING_(MinItems, 'm', 'i', 'n', 'I', 't', 'e', 'm', 's') + RAPIDJSON_STRING_(MaxItems, 'm', 'a', 'x', 'I', 't', 'e', 'm', 's') + RAPIDJSON_STRING_(AdditionalItems, 'a', 'd', 'd', 'i', 't', 'i', 'o', 'n', 'a', 'l', 'I', 't', 'e', 'm', 's') + RAPIDJSON_STRING_(UniqueItems, 'u', 'n', 'i', 'q', 'u', 'e', 'I', 't', 'e', 'm', 's') + RAPIDJSON_STRING_(MinLength, 'm', 'i', 'n', 'L', 'e', 'n', 'g', 't', 'h') + RAPIDJSON_STRING_(MaxLength, 'm', 'a', 'x', 'L', 'e', 'n', 'g', 't', 'h') + RAPIDJSON_STRING_(Pattern, 'p', 'a', 't', 't', 'e', 'r', 'n') + RAPIDJSON_STRING_(Minimum, 'm', 'i', 'n', 'i', 'm', 'u', 'm') + RAPIDJSON_STRING_(Maximum, 'm', 'a', 'x', 'i', 'm', 'u', 'm') + RAPIDJSON_STRING_(ExclusiveMinimum, 'e', 'x', 'c', 'l', 'u', 's', 'i', 'v', 'e', 'M', 'i', 'n', 'i', 'm', 'u', 'm') + RAPIDJSON_STRING_(ExclusiveMaximum, 'e', 'x', 'c', 'l', 'u', 's', 'i', 'v', 'e', 'M', 'a', 'x', 'i', 'm', 'u', 'm') + RAPIDJSON_STRING_(MultipleOf, 'm', 'u', 'l', 't', 'i', 'p', 'l', 'e', 'O', 'f') + RAPIDJSON_STRING_(DefaultValue, 'd', 'e', 'f', 'a', 'u', 'l', 't') + +#undef RAPIDJSON_STRING_ + +private: + enum SchemaValueType { + kNullSchemaType, + kBooleanSchemaType, + kObjectSchemaType, + kArraySchemaType, + kStringSchemaType, + kNumberSchemaType, + kIntegerSchemaType, + kTotalSchemaType + }; + +#if RAPIDJSON_SCHEMA_USE_INTERNALREGEX + typedef internal::GenericRegex<EncodingType, AllocatorType> RegexType; +#elif RAPIDJSON_SCHEMA_USE_STDREGEX + typedef std::basic_regex<Ch> RegexType; +#else + typedef char RegexType; +#endif + + struct SchemaArray { + SchemaArray() : schemas(), count() {} + ~SchemaArray() { AllocatorType::Free(schemas); } + const SchemaType** schemas; + SizeType begin; // begin index of context.validators + SizeType count; + }; + + template <typename V1, typename V2> + void AddUniqueElement(V1& a, const V2& v) { + for (typename V1::ConstValueIterator itr = a.Begin(); itr != a.End(); ++itr) + if (*itr == v) + return; + V1 c(v, *allocator_); + a.PushBack(c, *allocator_); + } + + static const ValueType* GetMember(const ValueType& value, const ValueType& name) { + typename ValueType::ConstMemberIterator itr = value.FindMember(name); + return itr != value.MemberEnd() ? &(itr->value) : 0; + } + + static void AssignIfExist(bool& out, const ValueType& value, const ValueType& name) { + if (const ValueType* v = GetMember(value, name)) + if (v->IsBool()) + out = v->GetBool(); + } + + static void AssignIfExist(SizeType& out, const ValueType& value, const ValueType& name) { + if (const ValueType* v = GetMember(value, name)) + if (v->IsUint64() && v->GetUint64() <= SizeType(~0)) + out = static_cast<SizeType>(v->GetUint64()); + } + + void AssignIfExist(SchemaArray& out, SchemaDocumentType& schemaDocument, const PointerType& p, const ValueType& value, const ValueType& name, const ValueType& document) { + if (const ValueType* v = GetMember(value, name)) { + if (v->IsArray() && v->Size() > 0) { + PointerType q = p.Append(name, allocator_); + out.count = v->Size(); + out.schemas = static_cast<const Schema**>(allocator_->Malloc(out.count * sizeof(const Schema*))); + memset(out.schemas, 0, sizeof(Schema*)* out.count); + for (SizeType i = 0; i < out.count; i++) + schemaDocument.CreateSchema(&out.schemas[i], q.Append(i, allocator_), (*v)[i], document); + out.begin = validatorCount_; + validatorCount_ += out.count; + } + } + } + +#if RAPIDJSON_SCHEMA_USE_INTERNALREGEX + template <typename ValueType> + RegexType* CreatePattern(const ValueType& value) { + if (value.IsString()) { + RegexType* r = new (allocator_->Malloc(sizeof(RegexType))) RegexType(value.GetString(), allocator_); + if (!r->IsValid()) { + r->~RegexType(); + AllocatorType::Free(r); + r = 0; + } + return r; + } + return 0; + } + + static bool IsPatternMatch(const RegexType* pattern, const Ch *str, SizeType) { + GenericRegexSearch<RegexType> rs(*pattern); + return rs.Search(str); + } +#elif RAPIDJSON_SCHEMA_USE_STDREGEX + template <typename ValueType> + RegexType* CreatePattern(const ValueType& value) { + if (value.IsString()) { + RegexType *r = static_cast<RegexType*>(allocator_->Malloc(sizeof(RegexType))); + try { + return new (r) RegexType(value.GetString(), std::size_t(value.GetStringLength()), std::regex_constants::ECMAScript); + } + catch (const std::regex_error&) { + AllocatorType::Free(r); + } + } + return 0; + } + + static bool IsPatternMatch(const RegexType* pattern, const Ch *str, SizeType length) { + std::match_results<const Ch*> r; + return std::regex_search(str, str + length, r, *pattern); + } +#else + template <typename ValueType> + RegexType* CreatePattern(const ValueType&) { return 0; } + + static bool IsPatternMatch(const RegexType*, const Ch *, SizeType) { return true; } +#endif // RAPIDJSON_SCHEMA_USE_STDREGEX + + void AddType(const ValueType& type) { + if (type == GetNullString() ) type_ |= 1 << kNullSchemaType; + else if (type == GetBooleanString()) type_ |= 1 << kBooleanSchemaType; + else if (type == GetObjectString() ) type_ |= 1 << kObjectSchemaType; + else if (type == GetArrayString() ) type_ |= 1 << kArraySchemaType; + else if (type == GetStringString() ) type_ |= 1 << kStringSchemaType; + else if (type == GetIntegerString()) type_ |= 1 << kIntegerSchemaType; + else if (type == GetNumberString() ) type_ |= (1 << kNumberSchemaType) | (1 << kIntegerSchemaType); + } + + bool CreateParallelValidator(Context& context) const { + if (enum_ || context.arrayUniqueness) + context.hasher = context.factory.CreateHasher(); + + if (validatorCount_) { + RAPIDJSON_ASSERT(context.validators == 0); + context.validators = static_cast<ISchemaValidator**>(context.factory.MallocState(sizeof(ISchemaValidator*) * validatorCount_)); + context.validatorCount = validatorCount_; + + if (allOf_.schemas) + CreateSchemaValidators(context, allOf_); + + if (anyOf_.schemas) + CreateSchemaValidators(context, anyOf_); + + if (oneOf_.schemas) + CreateSchemaValidators(context, oneOf_); + + if (not_) + context.validators[notValidatorIndex_] = context.factory.CreateSchemaValidator(*not_); + + if (hasSchemaDependencies_) { + for (SizeType i = 0; i < propertyCount_; i++) + if (properties_[i].dependenciesSchema) + context.validators[properties_[i].dependenciesValidatorIndex] = context.factory.CreateSchemaValidator(*properties_[i].dependenciesSchema); + } + } + + return true; + } + + void CreateSchemaValidators(Context& context, const SchemaArray& schemas) const { + for (SizeType i = 0; i < schemas.count; i++) + context.validators[schemas.begin + i] = context.factory.CreateSchemaValidator(*schemas.schemas[i]); + } + + // O(n) + bool FindPropertyIndex(const ValueType& name, SizeType* outIndex) const { + SizeType len = name.GetStringLength(); + const Ch* str = name.GetString(); + for (SizeType index = 0; index < propertyCount_; index++) + if (properties_[index].name.GetStringLength() == len && + (std::memcmp(properties_[index].name.GetString(), str, sizeof(Ch) * len) == 0)) + { + *outIndex = index; + return true; + } + return false; + } + + bool CheckInt(Context& context, int64_t i) const { + if (!(type_ & ((1 << kIntegerSchemaType) | (1 << kNumberSchemaType)))) { + DisallowedType(context, GetIntegerString()); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString()); + } + + if (!minimum_.IsNull()) { + if (minimum_.IsInt64()) { + if (exclusiveMinimum_ ? i <= minimum_.GetInt64() : i < minimum_.GetInt64()) { + context.error_handler.BelowMinimum(i, minimum_, exclusiveMinimum_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinimumString()); + } + } + else if (minimum_.IsUint64()) { + context.error_handler.BelowMinimum(i, minimum_, exclusiveMinimum_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinimumString()); // i <= max(int64_t) < minimum.GetUint64() + } + else if (!CheckDoubleMinimum(context, static_cast<double>(i))) + return false; + } + + if (!maximum_.IsNull()) { + if (maximum_.IsInt64()) { + if (exclusiveMaximum_ ? i >= maximum_.GetInt64() : i > maximum_.GetInt64()) { + context.error_handler.AboveMaximum(i, maximum_, exclusiveMaximum_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaximumString()); + } + } + else if (maximum_.IsUint64()) { } + /* do nothing */ // i <= max(int64_t) < maximum_.GetUint64() + else if (!CheckDoubleMaximum(context, static_cast<double>(i))) + return false; + } + + if (!multipleOf_.IsNull()) { + if (multipleOf_.IsUint64()) { + if (static_cast<uint64_t>(i >= 0 ? i : -i) % multipleOf_.GetUint64() != 0) { + context.error_handler.NotMultipleOf(i, multipleOf_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMultipleOfString()); + } + } + else if (!CheckDoubleMultipleOf(context, static_cast<double>(i))) + return false; + } + + return true; + } + + bool CheckUint(Context& context, uint64_t i) const { + if (!(type_ & ((1 << kIntegerSchemaType) | (1 << kNumberSchemaType)))) { + DisallowedType(context, GetIntegerString()); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetTypeString()); + } + + if (!minimum_.IsNull()) { + if (minimum_.IsUint64()) { + if (exclusiveMinimum_ ? i <= minimum_.GetUint64() : i < minimum_.GetUint64()) { + context.error_handler.BelowMinimum(i, minimum_, exclusiveMinimum_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinimumString()); + } + } + else if (minimum_.IsInt64()) + /* do nothing */; // i >= 0 > minimum.Getint64() + else if (!CheckDoubleMinimum(context, static_cast<double>(i))) + return false; + } + + if (!maximum_.IsNull()) { + if (maximum_.IsUint64()) { + if (exclusiveMaximum_ ? i >= maximum_.GetUint64() : i > maximum_.GetUint64()) { + context.error_handler.AboveMaximum(i, maximum_, exclusiveMaximum_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaximumString()); + } + } + else if (maximum_.IsInt64()) { + context.error_handler.AboveMaximum(i, maximum_, exclusiveMaximum_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaximumString()); // i >= 0 > maximum_ + } + else if (!CheckDoubleMaximum(context, static_cast<double>(i))) + return false; + } + + if (!multipleOf_.IsNull()) { + if (multipleOf_.IsUint64()) { + if (i % multipleOf_.GetUint64() != 0) { + context.error_handler.NotMultipleOf(i, multipleOf_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMultipleOfString()); + } + } + else if (!CheckDoubleMultipleOf(context, static_cast<double>(i))) + return false; + } + + return true; + } + + bool CheckDoubleMinimum(Context& context, double d) const { + if (exclusiveMinimum_ ? d <= minimum_.GetDouble() : d < minimum_.GetDouble()) { + context.error_handler.BelowMinimum(d, minimum_, exclusiveMinimum_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMinimumString()); + } + return true; + } + + bool CheckDoubleMaximum(Context& context, double d) const { + if (exclusiveMaximum_ ? d >= maximum_.GetDouble() : d > maximum_.GetDouble()) { + context.error_handler.AboveMaximum(d, maximum_, exclusiveMaximum_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMaximumString()); + } + return true; + } + + bool CheckDoubleMultipleOf(Context& context, double d) const { + double a = std::abs(d), b = std::abs(multipleOf_.GetDouble()); + double q = std::floor(a / b); + double r = a - q * b; + if (r > 0.0) { + context.error_handler.NotMultipleOf(d, multipleOf_); + RAPIDJSON_INVALID_KEYWORD_RETURN(GetMultipleOfString()); + } + return true; + } + + void DisallowedType(Context& context, const ValueType& actualType) const { + ErrorHandler& eh = context.error_handler; + eh.StartDisallowedType(); + + if (type_ & (1 << kNullSchemaType)) eh.AddExpectedType(GetNullString()); + if (type_ & (1 << kBooleanSchemaType)) eh.AddExpectedType(GetBooleanString()); + if (type_ & (1 << kObjectSchemaType)) eh.AddExpectedType(GetObjectString()); + if (type_ & (1 << kArraySchemaType)) eh.AddExpectedType(GetArrayString()); + if (type_ & (1 << kStringSchemaType)) eh.AddExpectedType(GetStringString()); + + if (type_ & (1 << kNumberSchemaType)) eh.AddExpectedType(GetNumberString()); + else if (type_ & (1 << kIntegerSchemaType)) eh.AddExpectedType(GetIntegerString()); + + eh.EndDisallowedType(actualType); + } + + struct Property { + Property() : schema(), dependenciesSchema(), dependenciesValidatorIndex(), dependencies(), required(false) {} + ~Property() { AllocatorType::Free(dependencies); } + SValue name; + const SchemaType* schema; + const SchemaType* dependenciesSchema; + SizeType dependenciesValidatorIndex; + bool* dependencies; + bool required; + }; + + struct PatternProperty { + PatternProperty() : schema(), pattern() {} + ~PatternProperty() { + if (pattern) { + pattern->~RegexType(); + AllocatorType::Free(pattern); + } + } + const SchemaType* schema; + RegexType* pattern; + }; + + AllocatorType* allocator_; + SValue uri_; + PointerType pointer_; + const SchemaType* typeless_; + uint64_t* enum_; + SizeType enumCount_; + SchemaArray allOf_; + SchemaArray anyOf_; + SchemaArray oneOf_; + const SchemaType* not_; + unsigned type_; // bitmask of kSchemaType + SizeType validatorCount_; + SizeType notValidatorIndex_; + + Property* properties_; + const SchemaType* additionalPropertiesSchema_; + PatternProperty* patternProperties_; + SizeType patternPropertyCount_; + SizeType propertyCount_; + SizeType minProperties_; + SizeType maxProperties_; + bool additionalProperties_; + bool hasDependencies_; + bool hasRequired_; + bool hasSchemaDependencies_; + + const SchemaType* additionalItemsSchema_; + const SchemaType* itemsList_; + const SchemaType** itemsTuple_; + SizeType itemsTupleCount_; + SizeType minItems_; + SizeType maxItems_; + bool additionalItems_; + bool uniqueItems_; + + RegexType* pattern_; + SizeType minLength_; + SizeType maxLength_; + + SValue minimum_; + SValue maximum_; + SValue multipleOf_; + bool exclusiveMinimum_; + bool exclusiveMaximum_; + + SizeType defaultValueLength_; +}; + +template<typename Stack, typename Ch> +struct TokenHelper { + RAPIDJSON_FORCEINLINE static void AppendIndexToken(Stack& documentStack, SizeType index) { + *documentStack.template Push<Ch>() = '/'; + char buffer[21]; + size_t length = static_cast<size_t>((sizeof(SizeType) == 4 ? u32toa(index, buffer) : u64toa(index, buffer)) - buffer); + for (size_t i = 0; i < length; i++) + *documentStack.template Push<Ch>() = static_cast<Ch>(buffer[i]); + } +}; + +// Partial specialized version for char to prevent buffer copying. +template <typename Stack> +struct TokenHelper<Stack, char> { + RAPIDJSON_FORCEINLINE static void AppendIndexToken(Stack& documentStack, SizeType index) { + if (sizeof(SizeType) == 4) { + char *buffer = documentStack.template Push<char>(1 + 10); // '/' + uint + *buffer++ = '/'; + const char* end = internal::u32toa(index, buffer); + documentStack.template Pop<char>(static_cast<size_t>(10 - (end - buffer))); + } + else { + char *buffer = documentStack.template Push<char>(1 + 20); // '/' + uint64 + *buffer++ = '/'; + const char* end = internal::u64toa(index, buffer); + documentStack.template Pop<char>(static_cast<size_t>(20 - (end - buffer))); + } + } +}; + +} // namespace internal + +/////////////////////////////////////////////////////////////////////////////// +// IGenericRemoteSchemaDocumentProvider + +template <typename SchemaDocumentType> +class IGenericRemoteSchemaDocumentProvider { +public: + typedef typename SchemaDocumentType::Ch Ch; + + virtual ~IGenericRemoteSchemaDocumentProvider() {} + virtual const SchemaDocumentType* GetRemoteDocument(const Ch* uri, SizeType length) = 0; +}; + +/////////////////////////////////////////////////////////////////////////////// +// GenericSchemaDocument + +//! JSON schema document. +/*! + A JSON schema document is a compiled version of a JSON schema. + It is basically a tree of internal::Schema. + + \note This is an immutable class (i.e. its instance cannot be modified after construction). + \tparam ValueT Type of JSON value (e.g. \c Value ), which also determine the encoding. + \tparam Allocator Allocator type for allocating memory of this document. +*/ +template <typename ValueT, typename Allocator = CrtAllocator> +class GenericSchemaDocument { +public: + typedef ValueT ValueType; + typedef IGenericRemoteSchemaDocumentProvider<GenericSchemaDocument> IRemoteSchemaDocumentProviderType; + typedef Allocator AllocatorType; + typedef typename ValueType::EncodingType EncodingType; + typedef typename EncodingType::Ch Ch; + typedef internal::Schema<GenericSchemaDocument> SchemaType; + typedef GenericPointer<ValueType, Allocator> PointerType; + typedef GenericValue<EncodingType, Allocator> URIType; + friend class internal::Schema<GenericSchemaDocument>; + template <typename, typename, typename> + friend class GenericSchemaValidator; + + //! Constructor. + /*! + Compile a JSON document into schema document. + + \param document A JSON document as source. + \param uri The base URI of this schema document for purposes of violation reporting. + \param uriLength Length of \c name, in code points. + \param remoteProvider An optional remote schema document provider for resolving remote reference. Can be null. + \param allocator An optional allocator instance for allocating memory. Can be null. + */ + explicit GenericSchemaDocument(const ValueType& document, const Ch* uri = 0, SizeType uriLength = 0, + IRemoteSchemaDocumentProviderType* remoteProvider = 0, Allocator* allocator = 0) : + remoteProvider_(remoteProvider), + allocator_(allocator), + ownAllocator_(), + root_(), + typeless_(), + schemaMap_(allocator, kInitialSchemaMapSize), + schemaRef_(allocator, kInitialSchemaRefSize) + { + if (!allocator_) + ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)(); + + Ch noUri[1] = {0}; + uri_.SetString(uri ? uri : noUri, uriLength, *allocator_); + + typeless_ = static_cast<SchemaType*>(allocator_->Malloc(sizeof(SchemaType))); + new (typeless_) SchemaType(this, PointerType(), ValueType(kObjectType).Move(), ValueType(kObjectType).Move(), allocator_); + + // Generate root schema, it will call CreateSchema() to create sub-schemas, + // And call AddRefSchema() if there are $ref. + CreateSchemaRecursive(&root_, PointerType(), document, document); + + // Resolve $ref + while (!schemaRef_.Empty()) { + SchemaRefEntry* refEntry = schemaRef_.template Pop<SchemaRefEntry>(1); + if (const SchemaType* s = GetSchema(refEntry->target)) { + if (refEntry->schema) + *refEntry->schema = s; + + // Create entry in map if not exist + if (!GetSchema(refEntry->source)) { + new (schemaMap_.template Push<SchemaEntry>()) SchemaEntry(refEntry->source, const_cast<SchemaType*>(s), false, allocator_); + } + } + else if (refEntry->schema) + *refEntry->schema = typeless_; + + refEntry->~SchemaRefEntry(); + } + + RAPIDJSON_ASSERT(root_ != 0); + + schemaRef_.ShrinkToFit(); // Deallocate all memory for ref + } + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + //! Move constructor in C++11 + GenericSchemaDocument(GenericSchemaDocument&& rhs) RAPIDJSON_NOEXCEPT : + remoteProvider_(rhs.remoteProvider_), + allocator_(rhs.allocator_), + ownAllocator_(rhs.ownAllocator_), + root_(rhs.root_), + typeless_(rhs.typeless_), + schemaMap_(std::move(rhs.schemaMap_)), + schemaRef_(std::move(rhs.schemaRef_)), + uri_(std::move(rhs.uri_)) + { + rhs.remoteProvider_ = 0; + rhs.allocator_ = 0; + rhs.ownAllocator_ = 0; + rhs.typeless_ = 0; + } +#endif + + //! Destructor + ~GenericSchemaDocument() { + while (!schemaMap_.Empty()) + schemaMap_.template Pop<SchemaEntry>(1)->~SchemaEntry(); + + if (typeless_) { + typeless_->~SchemaType(); + Allocator::Free(typeless_); + } + + RAPIDJSON_DELETE(ownAllocator_); + } + + const URIType& GetURI() const { return uri_; } + + //! Get the root schema. + const SchemaType& GetRoot() const { return *root_; } + +private: + //! Prohibit copying + GenericSchemaDocument(const GenericSchemaDocument&); + //! Prohibit assignment + GenericSchemaDocument& operator=(const GenericSchemaDocument&); + + struct SchemaRefEntry { + SchemaRefEntry(const PointerType& s, const PointerType& t, const SchemaType** outSchema, Allocator *allocator) : source(s, allocator), target(t, allocator), schema(outSchema) {} + PointerType source; + PointerType target; + const SchemaType** schema; + }; + + struct SchemaEntry { + SchemaEntry(const PointerType& p, SchemaType* s, bool o, Allocator* allocator) : pointer(p, allocator), schema(s), owned(o) {} + ~SchemaEntry() { + if (owned) { + schema->~SchemaType(); + Allocator::Free(schema); + } + } + PointerType pointer; + SchemaType* schema; + bool owned; + }; + + void CreateSchemaRecursive(const SchemaType** schema, const PointerType& pointer, const ValueType& v, const ValueType& document) { + if (schema) + *schema = typeless_; + + if (v.GetType() == kObjectType) { + const SchemaType* s = GetSchema(pointer); + if (!s) + CreateSchema(schema, pointer, v, document); + + for (typename ValueType::ConstMemberIterator itr = v.MemberBegin(); itr != v.MemberEnd(); ++itr) + CreateSchemaRecursive(0, pointer.Append(itr->name, allocator_), itr->value, document); + } + else if (v.GetType() == kArrayType) + for (SizeType i = 0; i < v.Size(); i++) + CreateSchemaRecursive(0, pointer.Append(i, allocator_), v[i], document); + } + + void CreateSchema(const SchemaType** schema, const PointerType& pointer, const ValueType& v, const ValueType& document) { + RAPIDJSON_ASSERT(pointer.IsValid()); + if (v.IsObject()) { + if (!HandleRefSchema(pointer, schema, v, document)) { + SchemaType* s = new (allocator_->Malloc(sizeof(SchemaType))) SchemaType(this, pointer, v, document, allocator_); + new (schemaMap_.template Push<SchemaEntry>()) SchemaEntry(pointer, s, true, allocator_); + if (schema) + *schema = s; + } + } + } + + bool HandleRefSchema(const PointerType& source, const SchemaType** schema, const ValueType& v, const ValueType& document) { + static const Ch kRefString[] = { '$', 'r', 'e', 'f', '\0' }; + static const ValueType kRefValue(kRefString, 4); + + typename ValueType::ConstMemberIterator itr = v.FindMember(kRefValue); + if (itr == v.MemberEnd()) + return false; + + if (itr->value.IsString()) { + SizeType len = itr->value.GetStringLength(); + if (len > 0) { + const Ch* s = itr->value.GetString(); + SizeType i = 0; + while (i < len && s[i] != '#') // Find the first # + i++; + + if (i > 0) { // Remote reference, resolve immediately + if (remoteProvider_) { + if (const GenericSchemaDocument* remoteDocument = remoteProvider_->GetRemoteDocument(s, i)) { + PointerType pointer(&s[i], len - i, allocator_); + if (pointer.IsValid()) { + if (const SchemaType* sc = remoteDocument->GetSchema(pointer)) { + if (schema) + *schema = sc; + new (schemaMap_.template Push<SchemaEntry>()) SchemaEntry(source, const_cast<SchemaType*>(sc), false, allocator_); + return true; + } + } + } + } + } + else if (s[i] == '#') { // Local reference, defer resolution + PointerType pointer(&s[i], len - i, allocator_); + if (pointer.IsValid()) { + if (const ValueType* nv = pointer.Get(document)) + if (HandleRefSchema(source, schema, *nv, document)) + return true; + + new (schemaRef_.template Push<SchemaRefEntry>()) SchemaRefEntry(source, pointer, schema, allocator_); + return true; + } + } + } + } + return false; + } + + const SchemaType* GetSchema(const PointerType& pointer) const { + for (const SchemaEntry* target = schemaMap_.template Bottom<SchemaEntry>(); target != schemaMap_.template End<SchemaEntry>(); ++target) + if (pointer == target->pointer) + return target->schema; + return 0; + } + + PointerType GetPointer(const SchemaType* schema) const { + for (const SchemaEntry* target = schemaMap_.template Bottom<SchemaEntry>(); target != schemaMap_.template End<SchemaEntry>(); ++target) + if (schema == target->schema) + return target->pointer; + return PointerType(); + } + + const SchemaType* GetTypeless() const { return typeless_; } + + static const size_t kInitialSchemaMapSize = 64; + static const size_t kInitialSchemaRefSize = 64; + + IRemoteSchemaDocumentProviderType* remoteProvider_; + Allocator *allocator_; + Allocator *ownAllocator_; + const SchemaType* root_; //!< Root schema. + SchemaType* typeless_; + internal::Stack<Allocator> schemaMap_; // Stores created Pointer -> Schemas + internal::Stack<Allocator> schemaRef_; // Stores Pointer from $ref and schema which holds the $ref + URIType uri_; +}; + +//! GenericSchemaDocument using Value type. +typedef GenericSchemaDocument<Value> SchemaDocument; +//! IGenericRemoteSchemaDocumentProvider using SchemaDocument. +typedef IGenericRemoteSchemaDocumentProvider<SchemaDocument> IRemoteSchemaDocumentProvider; + +/////////////////////////////////////////////////////////////////////////////// +// GenericSchemaValidator + +//! JSON Schema Validator. +/*! + A SAX style JSON schema validator. + It uses a \c GenericSchemaDocument to validate SAX events. + It delegates the incoming SAX events to an output handler. + The default output handler does nothing. + It can be reused multiple times by calling \c Reset(). + + \tparam SchemaDocumentType Type of schema document. + \tparam OutputHandler Type of output handler. Default handler does nothing. + \tparam StateAllocator Allocator for storing the internal validation states. +*/ +template < + typename SchemaDocumentType, + typename OutputHandler = BaseReaderHandler<typename SchemaDocumentType::SchemaType::EncodingType>, + typename StateAllocator = CrtAllocator> +class GenericSchemaValidator : + public internal::ISchemaStateFactory<typename SchemaDocumentType::SchemaType>, + public internal::ISchemaValidator, + public internal::IValidationErrorHandler<typename SchemaDocumentType::SchemaType> +{ +public: + typedef typename SchemaDocumentType::SchemaType SchemaType; + typedef typename SchemaDocumentType::PointerType PointerType; + typedef typename SchemaType::EncodingType EncodingType; + typedef typename SchemaType::SValue SValue; + typedef typename EncodingType::Ch Ch; + typedef GenericStringRef<Ch> StringRefType; + typedef GenericValue<EncodingType, StateAllocator> ValueType; + + //! Constructor without output handler. + /*! + \param schemaDocument The schema document to conform to. + \param allocator Optional allocator for storing internal validation states. + \param schemaStackCapacity Optional initial capacity of schema path stack. + \param documentStackCapacity Optional initial capacity of document path stack. + */ + GenericSchemaValidator( + const SchemaDocumentType& schemaDocument, + StateAllocator* allocator = 0, + size_t schemaStackCapacity = kDefaultSchemaStackCapacity, + size_t documentStackCapacity = kDefaultDocumentStackCapacity) + : + schemaDocument_(&schemaDocument), + root_(schemaDocument.GetRoot()), + stateAllocator_(allocator), + ownStateAllocator_(0), + schemaStack_(allocator, schemaStackCapacity), + documentStack_(allocator, documentStackCapacity), + outputHandler_(0), + error_(kObjectType), + currentError_(), + missingDependents_(), + valid_(true) +#if RAPIDJSON_SCHEMA_VERBOSE + , depth_(0) +#endif + { + } + + //! Constructor with output handler. + /*! + \param schemaDocument The schema document to conform to. + \param allocator Optional allocator for storing internal validation states. + \param schemaStackCapacity Optional initial capacity of schema path stack. + \param documentStackCapacity Optional initial capacity of document path stack. + */ + GenericSchemaValidator( + const SchemaDocumentType& schemaDocument, + OutputHandler& outputHandler, + StateAllocator* allocator = 0, + size_t schemaStackCapacity = kDefaultSchemaStackCapacity, + size_t documentStackCapacity = kDefaultDocumentStackCapacity) + : + schemaDocument_(&schemaDocument), + root_(schemaDocument.GetRoot()), + stateAllocator_(allocator), + ownStateAllocator_(0), + schemaStack_(allocator, schemaStackCapacity), + documentStack_(allocator, documentStackCapacity), + outputHandler_(&outputHandler), + error_(kObjectType), + currentError_(), + missingDependents_(), + valid_(true) +#if RAPIDJSON_SCHEMA_VERBOSE + , depth_(0) +#endif + { + } + + //! Destructor. + ~GenericSchemaValidator() { + Reset(); + RAPIDJSON_DELETE(ownStateAllocator_); + } + + //! Reset the internal states. + void Reset() { + while (!schemaStack_.Empty()) + PopSchema(); + documentStack_.Clear(); + error_.SetObject(); + currentError_.SetNull(); + missingDependents_.SetNull(); + valid_ = true; + } + + //! Checks whether the current state is valid. + // Implementation of ISchemaValidator + virtual bool IsValid() const { return valid_; } + + //! Gets the error object. + ValueType& GetError() { return error_; } + const ValueType& GetError() const { return error_; } + + //! Gets the JSON pointer pointed to the invalid schema. + PointerType GetInvalidSchemaPointer() const { + return schemaStack_.Empty() ? PointerType() : CurrentSchema().GetPointer(); + } + + //! Gets the keyword of invalid schema. + const Ch* GetInvalidSchemaKeyword() const { + return schemaStack_.Empty() ? 0 : CurrentContext().invalidKeyword; + } + + //! Gets the JSON pointer pointed to the invalid value. + PointerType GetInvalidDocumentPointer() const { + if (documentStack_.Empty()) { + return PointerType(); + } + else { + return PointerType(documentStack_.template Bottom<Ch>(), documentStack_.GetSize() / sizeof(Ch)); + } + } + + void NotMultipleOf(int64_t actual, const SValue& expected) { + AddNumberError(SchemaType::GetMultipleOfString(), ValueType(actual).Move(), expected); + } + void NotMultipleOf(uint64_t actual, const SValue& expected) { + AddNumberError(SchemaType::GetMultipleOfString(), ValueType(actual).Move(), expected); + } + void NotMultipleOf(double actual, const SValue& expected) { + AddNumberError(SchemaType::GetMultipleOfString(), ValueType(actual).Move(), expected); + } + void AboveMaximum(int64_t actual, const SValue& expected, bool exclusive) { + AddNumberError(SchemaType::GetMaximumString(), ValueType(actual).Move(), expected, + exclusive ? &SchemaType::GetExclusiveMaximumString : 0); + } + void AboveMaximum(uint64_t actual, const SValue& expected, bool exclusive) { + AddNumberError(SchemaType::GetMaximumString(), ValueType(actual).Move(), expected, + exclusive ? &SchemaType::GetExclusiveMaximumString : 0); + } + void AboveMaximum(double actual, const SValue& expected, bool exclusive) { + AddNumberError(SchemaType::GetMaximumString(), ValueType(actual).Move(), expected, + exclusive ? &SchemaType::GetExclusiveMaximumString : 0); + } + void BelowMinimum(int64_t actual, const SValue& expected, bool exclusive) { + AddNumberError(SchemaType::GetMinimumString(), ValueType(actual).Move(), expected, + exclusive ? &SchemaType::GetExclusiveMinimumString : 0); + } + void BelowMinimum(uint64_t actual, const SValue& expected, bool exclusive) { + AddNumberError(SchemaType::GetMinimumString(), ValueType(actual).Move(), expected, + exclusive ? &SchemaType::GetExclusiveMinimumString : 0); + } + void BelowMinimum(double actual, const SValue& expected, bool exclusive) { + AddNumberError(SchemaType::GetMinimumString(), ValueType(actual).Move(), expected, + exclusive ? &SchemaType::GetExclusiveMinimumString : 0); + } + + void TooLong(const Ch* str, SizeType length, SizeType expected) { + AddNumberError(SchemaType::GetMaxLengthString(), + ValueType(str, length, GetStateAllocator()).Move(), SValue(expected).Move()); + } + void TooShort(const Ch* str, SizeType length, SizeType expected) { + AddNumberError(SchemaType::GetMinLengthString(), + ValueType(str, length, GetStateAllocator()).Move(), SValue(expected).Move()); + } + void DoesNotMatch(const Ch* str, SizeType length) { + currentError_.SetObject(); + currentError_.AddMember(GetActualString(), ValueType(str, length, GetStateAllocator()).Move(), GetStateAllocator()); + AddCurrentError(SchemaType::GetPatternString()); + } + + void DisallowedItem(SizeType index) { + currentError_.SetObject(); + currentError_.AddMember(GetDisallowedString(), ValueType(index).Move(), GetStateAllocator()); + AddCurrentError(SchemaType::GetAdditionalItemsString(), true); + } + void TooFewItems(SizeType actualCount, SizeType expectedCount) { + AddNumberError(SchemaType::GetMinItemsString(), + ValueType(actualCount).Move(), SValue(expectedCount).Move()); + } + void TooManyItems(SizeType actualCount, SizeType expectedCount) { + AddNumberError(SchemaType::GetMaxItemsString(), + ValueType(actualCount).Move(), SValue(expectedCount).Move()); + } + void DuplicateItems(SizeType index1, SizeType index2) { + ValueType duplicates(kArrayType); + duplicates.PushBack(index1, GetStateAllocator()); + duplicates.PushBack(index2, GetStateAllocator()); + currentError_.SetObject(); + currentError_.AddMember(GetDuplicatesString(), duplicates, GetStateAllocator()); + AddCurrentError(SchemaType::GetUniqueItemsString(), true); + } + + void TooManyProperties(SizeType actualCount, SizeType expectedCount) { + AddNumberError(SchemaType::GetMaxPropertiesString(), + ValueType(actualCount).Move(), SValue(expectedCount).Move()); + } + void TooFewProperties(SizeType actualCount, SizeType expectedCount) { + AddNumberError(SchemaType::GetMinPropertiesString(), + ValueType(actualCount).Move(), SValue(expectedCount).Move()); + } + void StartMissingProperties() { + currentError_.SetArray(); + } + void AddMissingProperty(const SValue& name) { + currentError_.PushBack(ValueType(name, GetStateAllocator()).Move(), GetStateAllocator()); + } + bool EndMissingProperties() { + if (currentError_.Empty()) + return false; + ValueType error(kObjectType); + error.AddMember(GetMissingString(), currentError_, GetStateAllocator()); + currentError_ = error; + AddCurrentError(SchemaType::GetRequiredString()); + return true; + } + void PropertyViolations(ISchemaValidator** subvalidators, SizeType count) { + for (SizeType i = 0; i < count; ++i) + MergeError(static_cast<GenericSchemaValidator*>(subvalidators[i])->GetError()); + } + void DisallowedProperty(const Ch* name, SizeType length) { + currentError_.SetObject(); + currentError_.AddMember(GetDisallowedString(), ValueType(name, length, GetStateAllocator()).Move(), GetStateAllocator()); + AddCurrentError(SchemaType::GetAdditionalPropertiesString(), true); + } + + void StartDependencyErrors() { + currentError_.SetObject(); + } + void StartMissingDependentProperties() { + missingDependents_.SetArray(); + } + void AddMissingDependentProperty(const SValue& targetName) { + missingDependents_.PushBack(ValueType(targetName, GetStateAllocator()).Move(), GetStateAllocator()); + } + void EndMissingDependentProperties(const SValue& sourceName) { + if (!missingDependents_.Empty()) + currentError_.AddMember(ValueType(sourceName, GetStateAllocator()).Move(), + missingDependents_, GetStateAllocator()); + } + void AddDependencySchemaError(const SValue& sourceName, ISchemaValidator* subvalidator) { + currentError_.AddMember(ValueType(sourceName, GetStateAllocator()).Move(), + static_cast<GenericSchemaValidator*>(subvalidator)->GetError(), GetStateAllocator()); + } + bool EndDependencyErrors() { + if (currentError_.ObjectEmpty()) + return false; + ValueType error(kObjectType); + error.AddMember(GetErrorsString(), currentError_, GetStateAllocator()); + currentError_ = error; + AddCurrentError(SchemaType::GetDependenciesString()); + return true; + } + + void DisallowedValue() { + currentError_.SetObject(); + AddCurrentError(SchemaType::GetEnumString()); + } + void StartDisallowedType() { + currentError_.SetArray(); + } + void AddExpectedType(const typename SchemaType::ValueType& expectedType) { + currentError_.PushBack(ValueType(expectedType, GetStateAllocator()).Move(), GetStateAllocator()); + } + void EndDisallowedType(const typename SchemaType::ValueType& actualType) { + ValueType error(kObjectType); + error.AddMember(GetExpectedString(), currentError_, GetStateAllocator()); + error.AddMember(GetActualString(), ValueType(actualType, GetStateAllocator()).Move(), GetStateAllocator()); + currentError_ = error; + AddCurrentError(SchemaType::GetTypeString()); + } + void NotAllOf(ISchemaValidator** subvalidators, SizeType count) { + for (SizeType i = 0; i < count; ++i) { + MergeError(static_cast<GenericSchemaValidator*>(subvalidators[i])->GetError()); + } + } + void NoneOf(ISchemaValidator** subvalidators, SizeType count) { + AddErrorArray(SchemaType::GetAnyOfString(), subvalidators, count); + } + void NotOneOf(ISchemaValidator** subvalidators, SizeType count) { + AddErrorArray(SchemaType::GetOneOfString(), subvalidators, count); + } + void Disallowed() { + currentError_.SetObject(); + AddCurrentError(SchemaType::GetNotString()); + } + +#define RAPIDJSON_STRING_(name, ...) \ + static const StringRefType& Get##name##String() {\ + static const Ch s[] = { __VA_ARGS__, '\0' };\ + static const StringRefType v(s, static_cast<SizeType>(sizeof(s) / sizeof(Ch) - 1)); \ + return v;\ + } + + RAPIDJSON_STRING_(InstanceRef, 'i', 'n', 's', 't', 'a', 'n', 'c', 'e', 'R', 'e', 'f') + RAPIDJSON_STRING_(SchemaRef, 's', 'c', 'h', 'e', 'm', 'a', 'R', 'e', 'f') + RAPIDJSON_STRING_(Expected, 'e', 'x', 'p', 'e', 'c', 't', 'e', 'd') + RAPIDJSON_STRING_(Actual, 'a', 'c', 't', 'u', 'a', 'l') + RAPIDJSON_STRING_(Disallowed, 'd', 'i', 's', 'a', 'l', 'l', 'o', 'w', 'e', 'd') + RAPIDJSON_STRING_(Missing, 'm', 'i', 's', 's', 'i', 'n', 'g') + RAPIDJSON_STRING_(Errors, 'e', 'r', 'r', 'o', 'r', 's') + RAPIDJSON_STRING_(Duplicates, 'd', 'u', 'p', 'l', 'i', 'c', 'a', 't', 'e', 's') + +#undef RAPIDJSON_STRING_ + +#if RAPIDJSON_SCHEMA_VERBOSE +#define RAPIDJSON_SCHEMA_HANDLE_BEGIN_VERBOSE_() \ +RAPIDJSON_MULTILINEMACRO_BEGIN\ + *documentStack_.template Push<Ch>() = '\0';\ + documentStack_.template Pop<Ch>(1);\ + internal::PrintInvalidDocument(documentStack_.template Bottom<Ch>());\ +RAPIDJSON_MULTILINEMACRO_END +#else +#define RAPIDJSON_SCHEMA_HANDLE_BEGIN_VERBOSE_() +#endif + +#define RAPIDJSON_SCHEMA_HANDLE_BEGIN_(method, arg1)\ + if (!valid_) return false; \ + if (!BeginValue() || !CurrentSchema().method arg1) {\ + RAPIDJSON_SCHEMA_HANDLE_BEGIN_VERBOSE_();\ + return valid_ = false;\ + } + +#define RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(method, arg2)\ + for (Context* context = schemaStack_.template Bottom<Context>(); context != schemaStack_.template End<Context>(); context++) {\ + if (context->hasher)\ + static_cast<HasherType*>(context->hasher)->method arg2;\ + if (context->validators)\ + for (SizeType i_ = 0; i_ < context->validatorCount; i_++)\ + static_cast<GenericSchemaValidator*>(context->validators[i_])->method arg2;\ + if (context->patternPropertiesValidators)\ + for (SizeType i_ = 0; i_ < context->patternPropertiesValidatorCount; i_++)\ + static_cast<GenericSchemaValidator*>(context->patternPropertiesValidators[i_])->method arg2;\ + } + +#define RAPIDJSON_SCHEMA_HANDLE_END_(method, arg2)\ + return valid_ = EndValue() && (!outputHandler_ || outputHandler_->method arg2) + +#define RAPIDJSON_SCHEMA_HANDLE_VALUE_(method, arg1, arg2) \ + RAPIDJSON_SCHEMA_HANDLE_BEGIN_ (method, arg1);\ + RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(method, arg2);\ + RAPIDJSON_SCHEMA_HANDLE_END_ (method, arg2) + + bool Null() { RAPIDJSON_SCHEMA_HANDLE_VALUE_(Null, (CurrentContext()), ( )); } + bool Bool(bool b) { RAPIDJSON_SCHEMA_HANDLE_VALUE_(Bool, (CurrentContext(), b), (b)); } + bool Int(int i) { RAPIDJSON_SCHEMA_HANDLE_VALUE_(Int, (CurrentContext(), i), (i)); } + bool Uint(unsigned u) { RAPIDJSON_SCHEMA_HANDLE_VALUE_(Uint, (CurrentContext(), u), (u)); } + bool Int64(int64_t i) { RAPIDJSON_SCHEMA_HANDLE_VALUE_(Int64, (CurrentContext(), i), (i)); } + bool Uint64(uint64_t u) { RAPIDJSON_SCHEMA_HANDLE_VALUE_(Uint64, (CurrentContext(), u), (u)); } + bool Double(double d) { RAPIDJSON_SCHEMA_HANDLE_VALUE_(Double, (CurrentContext(), d), (d)); } + bool RawNumber(const Ch* str, SizeType length, bool copy) + { RAPIDJSON_SCHEMA_HANDLE_VALUE_(String, (CurrentContext(), str, length, copy), (str, length, copy)); } + bool String(const Ch* str, SizeType length, bool copy) + { RAPIDJSON_SCHEMA_HANDLE_VALUE_(String, (CurrentContext(), str, length, copy), (str, length, copy)); } + + bool StartObject() { + RAPIDJSON_SCHEMA_HANDLE_BEGIN_(StartObject, (CurrentContext())); + RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(StartObject, ()); + return valid_ = !outputHandler_ || outputHandler_->StartObject(); + } + + bool Key(const Ch* str, SizeType len, bool copy) { + if (!valid_) return false; + AppendToken(str, len); + if (!CurrentSchema().Key(CurrentContext(), str, len, copy)) return valid_ = false; + RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(Key, (str, len, copy)); + return valid_ = !outputHandler_ || outputHandler_->Key(str, len, copy); + } + + bool EndObject(SizeType memberCount) { + if (!valid_) return false; + RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(EndObject, (memberCount)); + if (!CurrentSchema().EndObject(CurrentContext(), memberCount)) return valid_ = false; + RAPIDJSON_SCHEMA_HANDLE_END_(EndObject, (memberCount)); + } + + bool StartArray() { + RAPIDJSON_SCHEMA_HANDLE_BEGIN_(StartArray, (CurrentContext())); + RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(StartArray, ()); + return valid_ = !outputHandler_ || outputHandler_->StartArray(); + } + + bool EndArray(SizeType elementCount) { + if (!valid_) return false; + RAPIDJSON_SCHEMA_HANDLE_PARALLEL_(EndArray, (elementCount)); + if (!CurrentSchema().EndArray(CurrentContext(), elementCount)) return valid_ = false; + RAPIDJSON_SCHEMA_HANDLE_END_(EndArray, (elementCount)); + } + +#undef RAPIDJSON_SCHEMA_HANDLE_BEGIN_VERBOSE_ +#undef RAPIDJSON_SCHEMA_HANDLE_BEGIN_ +#undef RAPIDJSON_SCHEMA_HANDLE_PARALLEL_ +#undef RAPIDJSON_SCHEMA_HANDLE_VALUE_ + + // Implementation of ISchemaStateFactory<SchemaType> + virtual ISchemaValidator* CreateSchemaValidator(const SchemaType& root) { + return new (GetStateAllocator().Malloc(sizeof(GenericSchemaValidator))) GenericSchemaValidator(*schemaDocument_, root, documentStack_.template Bottom<char>(), documentStack_.GetSize(), +#if RAPIDJSON_SCHEMA_VERBOSE + depth_ + 1, +#endif + &GetStateAllocator()); + } + + virtual void DestroySchemaValidator(ISchemaValidator* validator) { + GenericSchemaValidator* v = static_cast<GenericSchemaValidator*>(validator); + v->~GenericSchemaValidator(); + StateAllocator::Free(v); + } + + virtual void* CreateHasher() { + return new (GetStateAllocator().Malloc(sizeof(HasherType))) HasherType(&GetStateAllocator()); + } + + virtual uint64_t GetHashCode(void* hasher) { + return static_cast<HasherType*>(hasher)->GetHashCode(); + } + + virtual void DestroryHasher(void* hasher) { + HasherType* h = static_cast<HasherType*>(hasher); + h->~HasherType(); + StateAllocator::Free(h); + } + + virtual void* MallocState(size_t size) { + return GetStateAllocator().Malloc(size); + } + + virtual void FreeState(void* p) { + StateAllocator::Free(p); + } + +private: + typedef typename SchemaType::Context Context; + typedef GenericValue<UTF8<>, StateAllocator> HashCodeArray; + typedef internal::Hasher<EncodingType, StateAllocator> HasherType; + + GenericSchemaValidator( + const SchemaDocumentType& schemaDocument, + const SchemaType& root, + const char* basePath, size_t basePathSize, +#if RAPIDJSON_SCHEMA_VERBOSE + unsigned depth, +#endif + StateAllocator* allocator = 0, + size_t schemaStackCapacity = kDefaultSchemaStackCapacity, + size_t documentStackCapacity = kDefaultDocumentStackCapacity) + : + schemaDocument_(&schemaDocument), + root_(root), + stateAllocator_(allocator), + ownStateAllocator_(0), + schemaStack_(allocator, schemaStackCapacity), + documentStack_(allocator, documentStackCapacity), + outputHandler_(0), + error_(kObjectType), + currentError_(), + missingDependents_(), + valid_(true) +#if RAPIDJSON_SCHEMA_VERBOSE + , depth_(depth) +#endif + { + if (basePath && basePathSize) + memcpy(documentStack_.template Push<char>(basePathSize), basePath, basePathSize); + } + + StateAllocator& GetStateAllocator() { + if (!stateAllocator_) + stateAllocator_ = ownStateAllocator_ = RAPIDJSON_NEW(StateAllocator)(); + return *stateAllocator_; + } + + bool BeginValue() { + if (schemaStack_.Empty()) + PushSchema(root_); + else { + if (CurrentContext().inArray) + internal::TokenHelper<internal::Stack<StateAllocator>, Ch>::AppendIndexToken(documentStack_, CurrentContext().arrayElementIndex); + + if (!CurrentSchema().BeginValue(CurrentContext())) + return false; + + SizeType count = CurrentContext().patternPropertiesSchemaCount; + const SchemaType** sa = CurrentContext().patternPropertiesSchemas; + typename Context::PatternValidatorType patternValidatorType = CurrentContext().valuePatternValidatorType; + bool valueUniqueness = CurrentContext().valueUniqueness; + RAPIDJSON_ASSERT(CurrentContext().valueSchema); + PushSchema(*CurrentContext().valueSchema); + + if (count > 0) { + CurrentContext().objectPatternValidatorType = patternValidatorType; + ISchemaValidator**& va = CurrentContext().patternPropertiesValidators; + SizeType& validatorCount = CurrentContext().patternPropertiesValidatorCount; + va = static_cast<ISchemaValidator**>(MallocState(sizeof(ISchemaValidator*) * count)); + for (SizeType i = 0; i < count; i++) + va[validatorCount++] = CreateSchemaValidator(*sa[i]); + } + + CurrentContext().arrayUniqueness = valueUniqueness; + } + return true; + } + + bool EndValue() { + if (!CurrentSchema().EndValue(CurrentContext())) + return false; + +#if RAPIDJSON_SCHEMA_VERBOSE + GenericStringBuffer<EncodingType> sb; + schemaDocument_->GetPointer(&CurrentSchema()).Stringify(sb); + + *documentStack_.template Push<Ch>() = '\0'; + documentStack_.template Pop<Ch>(1); + internal::PrintValidatorPointers(depth_, sb.GetString(), documentStack_.template Bottom<Ch>()); +#endif + + uint64_t h = CurrentContext().arrayUniqueness ? static_cast<HasherType*>(CurrentContext().hasher)->GetHashCode() : 0; + + PopSchema(); + + if (!schemaStack_.Empty()) { + Context& context = CurrentContext(); + if (context.valueUniqueness) { + HashCodeArray* a = static_cast<HashCodeArray*>(context.arrayElementHashCodes); + if (!a) + CurrentContext().arrayElementHashCodes = a = new (GetStateAllocator().Malloc(sizeof(HashCodeArray))) HashCodeArray(kArrayType); + for (typename HashCodeArray::ConstValueIterator itr = a->Begin(); itr != a->End(); ++itr) + if (itr->GetUint64() == h) { + DuplicateItems(static_cast<SizeType>(itr - a->Begin()), a->Size()); + RAPIDJSON_INVALID_KEYWORD_RETURN(SchemaType::GetUniqueItemsString()); + } + a->PushBack(h, GetStateAllocator()); + } + } + + // Remove the last token of document pointer + while (!documentStack_.Empty() && *documentStack_.template Pop<Ch>(1) != '/') + ; + + return true; + } + + void AppendToken(const Ch* str, SizeType len) { + documentStack_.template Reserve<Ch>(1 + len * 2); // worst case all characters are escaped as two characters + *documentStack_.template PushUnsafe<Ch>() = '/'; + for (SizeType i = 0; i < len; i++) { + if (str[i] == '~') { + *documentStack_.template PushUnsafe<Ch>() = '~'; + *documentStack_.template PushUnsafe<Ch>() = '0'; + } + else if (str[i] == '/') { + *documentStack_.template PushUnsafe<Ch>() = '~'; + *documentStack_.template PushUnsafe<Ch>() = '1'; + } + else + *documentStack_.template PushUnsafe<Ch>() = str[i]; + } + } + + RAPIDJSON_FORCEINLINE void PushSchema(const SchemaType& schema) { new (schemaStack_.template Push<Context>()) Context(*this, *this, &schema); } + + RAPIDJSON_FORCEINLINE void PopSchema() { + Context* c = schemaStack_.template Pop<Context>(1); + if (HashCodeArray* a = static_cast<HashCodeArray*>(c->arrayElementHashCodes)) { + a->~HashCodeArray(); + StateAllocator::Free(a); + } + c->~Context(); + } + + void AddErrorLocation(ValueType& result, bool parent) { + GenericStringBuffer<EncodingType> sb; + PointerType instancePointer = GetInvalidDocumentPointer(); + ((parent && instancePointer.GetTokenCount() > 0) + ? PointerType(instancePointer.GetTokens(), instancePointer.GetTokenCount() - 1) + : instancePointer).StringifyUriFragment(sb); + ValueType instanceRef(sb.GetString(), static_cast<SizeType>(sb.GetSize() / sizeof(Ch)), + GetStateAllocator()); + result.AddMember(GetInstanceRefString(), instanceRef, GetStateAllocator()); + sb.Clear(); + memcpy(sb.Push(CurrentSchema().GetURI().GetStringLength()), + CurrentSchema().GetURI().GetString(), + CurrentSchema().GetURI().GetStringLength() * sizeof(Ch)); + GetInvalidSchemaPointer().StringifyUriFragment(sb); + ValueType schemaRef(sb.GetString(), static_cast<SizeType>(sb.GetSize() / sizeof(Ch)), + GetStateAllocator()); + result.AddMember(GetSchemaRefString(), schemaRef, GetStateAllocator()); + } + + void AddError(ValueType& keyword, ValueType& error) { + typename ValueType::MemberIterator member = error_.FindMember(keyword); + if (member == error_.MemberEnd()) + error_.AddMember(keyword, error, GetStateAllocator()); + else { + if (member->value.IsObject()) { + ValueType errors(kArrayType); + errors.PushBack(member->value, GetStateAllocator()); + member->value = errors; + } + member->value.PushBack(error, GetStateAllocator()); + } + } + + void AddCurrentError(const typename SchemaType::ValueType& keyword, bool parent = false) { + AddErrorLocation(currentError_, parent); + AddError(ValueType(keyword, GetStateAllocator(), false).Move(), currentError_); + } + + void MergeError(ValueType& other) { + for (typename ValueType::MemberIterator it = other.MemberBegin(), end = other.MemberEnd(); it != end; ++it) { + AddError(it->name, it->value); + } + } + + void AddNumberError(const typename SchemaType::ValueType& keyword, ValueType& actual, const SValue& expected, + const typename SchemaType::ValueType& (*exclusive)() = 0) { + currentError_.SetObject(); + currentError_.AddMember(GetActualString(), actual, GetStateAllocator()); + currentError_.AddMember(GetExpectedString(), ValueType(expected, GetStateAllocator()).Move(), GetStateAllocator()); + if (exclusive) + currentError_.AddMember(ValueType(exclusive(), GetStateAllocator()).Move(), true, GetStateAllocator()); + AddCurrentError(keyword); + } + + void AddErrorArray(const typename SchemaType::ValueType& keyword, + ISchemaValidator** subvalidators, SizeType count) { + ValueType errors(kArrayType); + for (SizeType i = 0; i < count; ++i) + errors.PushBack(static_cast<GenericSchemaValidator*>(subvalidators[i])->GetError(), GetStateAllocator()); + currentError_.SetObject(); + currentError_.AddMember(GetErrorsString(), errors, GetStateAllocator()); + AddCurrentError(keyword); + } + + const SchemaType& CurrentSchema() const { return *schemaStack_.template Top<Context>()->schema; } + Context& CurrentContext() { return *schemaStack_.template Top<Context>(); } + const Context& CurrentContext() const { return *schemaStack_.template Top<Context>(); } + + static const size_t kDefaultSchemaStackCapacity = 1024; + static const size_t kDefaultDocumentStackCapacity = 256; + const SchemaDocumentType* schemaDocument_; + const SchemaType& root_; + StateAllocator* stateAllocator_; + StateAllocator* ownStateAllocator_; + internal::Stack<StateAllocator> schemaStack_; //!< stack to store the current path of schema (BaseSchemaType *) + internal::Stack<StateAllocator> documentStack_; //!< stack to store the current path of validating document (Ch) + OutputHandler* outputHandler_; + ValueType error_; + ValueType currentError_; + ValueType missingDependents_; + bool valid_; +#if RAPIDJSON_SCHEMA_VERBOSE + unsigned depth_; +#endif +}; + +typedef GenericSchemaValidator<SchemaDocument> SchemaValidator; + +/////////////////////////////////////////////////////////////////////////////// +// SchemaValidatingReader + +//! A helper class for parsing with validation. +/*! + This helper class is a functor, designed as a parameter of \ref GenericDocument::Populate(). + + \tparam parseFlags Combination of \ref ParseFlag. + \tparam InputStream Type of input stream, implementing Stream concept. + \tparam SourceEncoding Encoding of the input stream. + \tparam SchemaDocumentType Type of schema document. + \tparam StackAllocator Allocator type for stack. +*/ +template < + unsigned parseFlags, + typename InputStream, + typename SourceEncoding, + typename SchemaDocumentType = SchemaDocument, + typename StackAllocator = CrtAllocator> +class SchemaValidatingReader { +public: + typedef typename SchemaDocumentType::PointerType PointerType; + typedef typename InputStream::Ch Ch; + typedef GenericValue<SourceEncoding, StackAllocator> ValueType; + + //! Constructor + /*! + \param is Input stream. + \param sd Schema document. + */ + SchemaValidatingReader(InputStream& is, const SchemaDocumentType& sd) : is_(is), sd_(sd), invalidSchemaKeyword_(), error_(kObjectType), isValid_(true) {} + + template <typename Handler> + bool operator()(Handler& handler) { + GenericReader<SourceEncoding, typename SchemaDocumentType::EncodingType, StackAllocator> reader; + GenericSchemaValidator<SchemaDocumentType, Handler> validator(sd_, handler); + parseResult_ = reader.template Parse<parseFlags>(is_, validator); + + isValid_ = validator.IsValid(); + if (isValid_) { + invalidSchemaPointer_ = PointerType(); + invalidSchemaKeyword_ = 0; + invalidDocumentPointer_ = PointerType(); + error_.SetObject(); + } + else { + invalidSchemaPointer_ = validator.GetInvalidSchemaPointer(); + invalidSchemaKeyword_ = validator.GetInvalidSchemaKeyword(); + invalidDocumentPointer_ = validator.GetInvalidDocumentPointer(); + error_.CopyFrom(validator.GetError(), allocator_); + } + + return parseResult_; + } + + const ParseResult& GetParseResult() const { return parseResult_; } + bool IsValid() const { return isValid_; } + const PointerType& GetInvalidSchemaPointer() const { return invalidSchemaPointer_; } + const Ch* GetInvalidSchemaKeyword() const { return invalidSchemaKeyword_; } + const PointerType& GetInvalidDocumentPointer() const { return invalidDocumentPointer_; } + const ValueType& GetError() const { return error_; } + +private: + InputStream& is_; + const SchemaDocumentType& sd_; + + ParseResult parseResult_; + PointerType invalidSchemaPointer_; + const Ch* invalidSchemaKeyword_; + PointerType invalidDocumentPointer_; + StackAllocator allocator_; + ValueType error_; + bool isValid_; +}; + +RAPIDJSON_NAMESPACE_END +RAPIDJSON_DIAG_POP + +#endif // RAPIDJSON_SCHEMA_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_stream.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_stream.h new file mode 100644 index 00000000..da28a998 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_stream.h @@ -0,0 +1,223 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#include "lottie_rapidjson_rapidjson.h" + +#ifndef RAPIDJSON_STREAM_H_ +#define RAPIDJSON_STREAM_H_ + +#include "lottie_rapidjson_encodings.h" + +RAPIDJSON_NAMESPACE_BEGIN + +/////////////////////////////////////////////////////////////////////////////// +// Stream + +/*! \class rapidjson::Stream + \brief Concept for reading and writing characters. + + For read-only stream, no need to implement PutBegin(), Put(), Flush() and PutEnd(). + + For write-only stream, only need to implement Put() and Flush(). + +\code +concept Stream { + typename Ch; //!< Character type of the stream. + + //! Read the current character from stream without moving the read cursor. + Ch Peek() const; + + //! Read the current character from stream and moving the read cursor to next character. + Ch Take(); + + //! Get the current read cursor. + //! \return Number of characters read from start. + size_t Tell(); + + //! Begin writing operation at the current read pointer. + //! \return The begin writer pointer. + Ch* PutBegin(); + + //! Write a character. + void Put(Ch c); + + //! Flush the buffer. + void Flush(); + + //! End the writing operation. + //! \param begin The begin write pointer returned by PutBegin(). + //! \return Number of characters written. + size_t PutEnd(Ch* begin); +} +\endcode +*/ + +//! Provides additional information for stream. +/*! + By using traits pattern, this type provides a default configuration for stream. + For custom stream, this type can be specialized for other configuration. + See TEST(Reader, CustomStringStream) in readertest.cpp for example. +*/ +template<typename Stream> +struct StreamTraits { + //! Whether to make local copy of stream for optimization during parsing. + /*! + By default, for safety, streams do not use local copy optimization. + Stream that can be copied fast should specialize this, like StreamTraits<StringStream>. + */ + enum { copyOptimization = 0 }; +}; + +//! Reserve n characters for writing to a stream. +template<typename Stream> +inline void PutReserve(Stream& stream, size_t count) { + (void)stream; + (void)count; +} + +//! Write character to a stream, presuming buffer is reserved. +template<typename Stream> +inline void PutUnsafe(Stream& stream, typename Stream::Ch c) { + stream.Put(c); +} + +//! Put N copies of a character to a stream. +template<typename Stream, typename Ch> +inline void PutN(Stream& stream, Ch c, size_t n) { + PutReserve(stream, n); + for (size_t i = 0; i < n; i++) + PutUnsafe(stream, c); +} + +/////////////////////////////////////////////////////////////////////////////// +// GenericStreamWrapper + +//! A Stream Wrapper +/*! \tThis string stream is a wrapper for any stream by just forwarding any + \treceived message to the origin stream. + \note implements Stream concept +*/ + +#if defined(_MSC_VER) && _MSC_VER <= 1800 +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(4702) // unreachable code +RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated +#endif + +template <typename InputStream, typename Encoding = UTF8<> > +class GenericStreamWrapper { +public: + typedef typename Encoding::Ch Ch; + GenericStreamWrapper(InputStream& is): is_(is) {} + + Ch Peek() const { return is_.Peek(); } + Ch Take() { return is_.Take(); } + size_t Tell() { return is_.Tell(); } + Ch* PutBegin() { return is_.PutBegin(); } + void Put(Ch ch) { is_.Put(ch); } + void Flush() { is_.Flush(); } + size_t PutEnd(Ch* ch) { return is_.PutEnd(ch); } + + // wrapper for MemoryStream + const Ch* Peek4() const { return is_.Peek4(); } + + // wrapper for AutoUTFInputStream + UTFType GetType() const { return is_.GetType(); } + bool HasBOM() const { return is_.HasBOM(); } + +protected: + InputStream& is_; +}; + +#if defined(_MSC_VER) && _MSC_VER <= 1800 +RAPIDJSON_DIAG_POP +#endif + +/////////////////////////////////////////////////////////////////////////////// +// StringStream + +//! Read-only string stream. +/*! \note implements Stream concept +*/ +template <typename Encoding> +struct GenericStringStream { + typedef typename Encoding::Ch Ch; + + GenericStringStream(const Ch *src) : src_(src), head_(src) {} + + Ch Peek() const { return *src_; } + Ch Take() { return *src_++; } + size_t Tell() const { return static_cast<size_t>(src_ - head_); } + + Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } + void Put(Ch) { RAPIDJSON_ASSERT(false); } + void Flush() { RAPIDJSON_ASSERT(false); } + size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } + + const Ch* src_; //!< Current read position. + const Ch* head_; //!< Original head of the string. +}; + +template <typename Encoding> +struct StreamTraits<GenericStringStream<Encoding> > { + enum { copyOptimization = 1 }; +}; + +//! String stream with UTF8 encoding. +typedef GenericStringStream<UTF8<> > StringStream; + +/////////////////////////////////////////////////////////////////////////////// +// InsituStringStream + +//! A read-write string stream. +/*! This string stream is particularly designed for in-situ parsing. + \note implements Stream concept +*/ +template <typename Encoding> +struct GenericInsituStringStream { + typedef typename Encoding::Ch Ch; + + GenericInsituStringStream(Ch *src) : src_(src), dst_(0), head_(src) {} + + // Read + Ch Peek() { return *src_; } + Ch Take() { return *src_++; } + size_t Tell() { return static_cast<size_t>(src_ - head_); } + + // Write + void Put(Ch c) { RAPIDJSON_ASSERT(dst_ != 0); *dst_++ = c; } + + Ch* PutBegin() { return dst_ = src_; } + size_t PutEnd(Ch* begin) { return static_cast<size_t>(dst_ - begin); } + void Flush() {} + + Ch* Push(size_t count) { Ch* begin = dst_; dst_ += count; return begin; } + void Pop(size_t count) { dst_ -= count; } + + Ch* src_; + Ch* dst_; + Ch* head_; +}; + +template <typename Encoding> +struct StreamTraits<GenericInsituStringStream<Encoding> > { + enum { copyOptimization = 1 }; +}; + +//! Insitu string stream with UTF8 encoding. +typedef GenericInsituStringStream<UTF8<> > InsituStringStream; + +RAPIDJSON_NAMESPACE_END + +#endif // RAPIDJSON_STREAM_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_stringbuffer.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_stringbuffer.h new file mode 100644 index 00000000..295d6a2f --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_stringbuffer.h @@ -0,0 +1,121 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_STRINGBUFFER_H_ +#define RAPIDJSON_STRINGBUFFER_H_ + +#include "lottie_rapidjson_stream.h" +#include "lottie_rapidjson_internal_stack.h" + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS +#include <utility> // std::move +#endif + +#include "lottie_rapidjson_internal_stack.h" + +#if defined(__clang__) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(c++98-compat) +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +//! Represents an in-memory output stream. +/*! + \tparam Encoding Encoding of the stream. + \tparam Allocator type for allocating memory buffer. + \note implements Stream concept +*/ +template <typename Encoding, typename Allocator = CrtAllocator> +class GenericStringBuffer { +public: + typedef typename Encoding::Ch Ch; + + GenericStringBuffer(Allocator* allocator = 0, size_t capacity = kDefaultCapacity) : stack_(allocator, capacity) {} + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + GenericStringBuffer(GenericStringBuffer&& rhs) : stack_(std::move(rhs.stack_)) {} + GenericStringBuffer& operator=(GenericStringBuffer&& rhs) { + if (&rhs != this) + stack_ = std::move(rhs.stack_); + return *this; + } +#endif + + void Put(Ch c) { *stack_.template Push<Ch>() = c; } + void PutUnsafe(Ch c) { *stack_.template PushUnsafe<Ch>() = c; } + void Flush() {} + + void Clear() { stack_.Clear(); } + void ShrinkToFit() { + // Push and pop a null terminator. This is safe. + *stack_.template Push<Ch>() = '\0'; + stack_.ShrinkToFit(); + stack_.template Pop<Ch>(1); + } + + void Reserve(size_t count) { stack_.template Reserve<Ch>(count); } + Ch* Push(size_t count) { return stack_.template Push<Ch>(count); } + Ch* PushUnsafe(size_t count) { return stack_.template PushUnsafe<Ch>(count); } + void Pop(size_t count) { stack_.template Pop<Ch>(count); } + + const Ch* GetString() const { + // Push and pop a null terminator. This is safe. + *stack_.template Push<Ch>() = '\0'; + stack_.template Pop<Ch>(1); + + return stack_.template Bottom<Ch>(); + } + + //! Get the size of string in bytes in the string buffer. + size_t GetSize() const { return stack_.GetSize(); } + + //! Get the length of string in Ch in the string buffer. + size_t GetLength() const { return stack_.GetSize() / sizeof(Ch); } + + static const size_t kDefaultCapacity = 256; + mutable internal::Stack<Allocator> stack_; + +private: + // Prohibit copy constructor & assignment operator. + GenericStringBuffer(const GenericStringBuffer&); + GenericStringBuffer& operator=(const GenericStringBuffer&); +}; + +//! String buffer with UTF8 encoding +typedef GenericStringBuffer<UTF8<> > StringBuffer; + +template<typename Encoding, typename Allocator> +inline void PutReserve(GenericStringBuffer<Encoding, Allocator>& stream, size_t count) { + stream.Reserve(count); +} + +template<typename Encoding, typename Allocator> +inline void PutUnsafe(GenericStringBuffer<Encoding, Allocator>& stream, typename Encoding::Ch c) { + stream.PutUnsafe(c); +} + +//! Implement specialized version of PutN() with memset() for better performance. +template<> +inline void PutN(GenericStringBuffer<UTF8<> >& stream, char c, size_t n) { + std::memset(stream.stack_.Push<char>(n), c, n * sizeof(c)); +} + +RAPIDJSON_NAMESPACE_END + +#if defined(__clang__) +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_STRINGBUFFER_H_ diff --git a/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_writer.h b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_writer.h new file mode 100644 index 00000000..d494cd47 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/lottie_rapidjson_writer.h @@ -0,0 +1,710 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#ifndef RAPIDJSON_WRITER_H_ +#define RAPIDJSON_WRITER_H_ + +#include "lottie_rapidjson_stream.h" +#include "lottie_rapidjson_internal_clzll.h" +#include "lottie_rapidjson_internal_meta.h" +#include "lottie_rapidjson_internal_stack.h" +#include "lottie_rapidjson_internal_strfunc.h" +#include "lottie_rapidjson_internal_dtoa.h" +#include "lottie_rapidjson_internal_itoa.h" +#include "lottie_rapidjson_stringbuffer.h" +#include <new> // placement new + +#if defined(RAPIDJSON_SIMD) && defined(_MSC_VER) +#include <intrin.h> +#pragma intrinsic(_BitScanForward) +#endif +#ifdef RAPIDJSON_SSE42 +#include <nmmintrin.h> +#elif defined(RAPIDJSON_SSE2) +#include <emmintrin.h> +#elif defined(RAPIDJSON_NEON) +#include <arm_neon.h> +#endif + +#ifdef __clang__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(padded) +RAPIDJSON_DIAG_OFF(unreachable-code) +RAPIDJSON_DIAG_OFF(c++98-compat) +#elif defined(_MSC_VER) +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant +#endif + +RAPIDJSON_NAMESPACE_BEGIN + +/////////////////////////////////////////////////////////////////////////////// +// WriteFlag + +/*! \def RAPIDJSON_WRITE_DEFAULT_FLAGS + \ingroup RAPIDJSON_CONFIG + \brief User-defined kWriteDefaultFlags definition. + + User can define this as any \c WriteFlag combinations. +*/ +#ifndef RAPIDJSON_WRITE_DEFAULT_FLAGS +#define RAPIDJSON_WRITE_DEFAULT_FLAGS kWriteNoFlags +#endif + +//! Combination of writeFlags +enum WriteFlag { + kWriteNoFlags = 0, //!< No flags are set. + kWriteValidateEncodingFlag = 1, //!< Validate encoding of JSON strings. + kWriteNanAndInfFlag = 2, //!< Allow writing of Infinity, -Infinity and NaN. + kWriteDefaultFlags = RAPIDJSON_WRITE_DEFAULT_FLAGS //!< Default write flags. Can be customized by defining RAPIDJSON_WRITE_DEFAULT_FLAGS +}; + +//! JSON writer +/*! Writer implements the concept Handler. + It generates JSON text by events to an output os. + + User may programmatically calls the functions of a writer to generate JSON text. + + On the other side, a writer can also be passed to objects that generates events, + + for example Reader::Parse() and Document::Accept(). + + \tparam OutputStream Type of output stream. + \tparam SourceEncoding Encoding of source string. + \tparam TargetEncoding Encoding of output stream. + \tparam StackAllocator Type of allocator for allocating memory of stack. + \note implements Handler concept +*/ +template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator, unsigned writeFlags = kWriteDefaultFlags> +class Writer { +public: + typedef typename SourceEncoding::Ch Ch; + + static const int kDefaultMaxDecimalPlaces = 324; + + //! Constructor + /*! \param os Output stream. + \param stackAllocator User supplied allocator. If it is null, it will create a private one. + \param levelDepth Initial capacity of stack. + */ + explicit + Writer(OutputStream& os, StackAllocator* stackAllocator = 0, size_t levelDepth = kDefaultLevelDepth) : + os_(&os), level_stack_(stackAllocator, levelDepth * sizeof(Level)), maxDecimalPlaces_(kDefaultMaxDecimalPlaces), hasRoot_(false) {} + + explicit + Writer(StackAllocator* allocator = 0, size_t levelDepth = kDefaultLevelDepth) : + os_(0), level_stack_(allocator, levelDepth * sizeof(Level)), maxDecimalPlaces_(kDefaultMaxDecimalPlaces), hasRoot_(false) {} + +#if RAPIDJSON_HAS_CXX11_RVALUE_REFS + Writer(Writer&& rhs) : + os_(rhs.os_), level_stack_(std::move(rhs.level_stack_)), maxDecimalPlaces_(rhs.maxDecimalPlaces_), hasRoot_(rhs.hasRoot_) { + rhs.os_ = 0; + } +#endif + + //! Reset the writer with a new stream. + /*! + This function reset the writer with a new stream and default settings, + in order to make a Writer object reusable for output multiple JSONs. + + \param os New output stream. + \code + Writer<OutputStream> writer(os1); + writer.StartObject(); + // ... + writer.EndObject(); + + writer.Reset(os2); + writer.StartObject(); + // ... + writer.EndObject(); + \endcode + */ + void Reset(OutputStream& os) { + os_ = &os; + hasRoot_ = false; + level_stack_.Clear(); + } + + //! Checks whether the output is a complete JSON. + /*! + A complete JSON has a complete root object or array. + */ + bool IsComplete() const { + return hasRoot_ && level_stack_.Empty(); + } + + int GetMaxDecimalPlaces() const { + return maxDecimalPlaces_; + } + + //! Sets the maximum number of decimal places for double output. + /*! + This setting truncates the output with specified number of decimal places. + + For example, + + \code + writer.SetMaxDecimalPlaces(3); + writer.StartArray(); + writer.Double(0.12345); // "0.123" + writer.Double(0.0001); // "0.0" + writer.Double(1.234567890123456e30); // "1.234567890123456e30" (do not truncate significand for positive exponent) + writer.Double(1.23e-4); // "0.0" (do truncate significand for negative exponent) + writer.EndArray(); + \endcode + + The default setting does not truncate any decimal places. You can restore to this setting by calling + \code + writer.SetMaxDecimalPlaces(Writer::kDefaultMaxDecimalPlaces); + \endcode + */ + void SetMaxDecimalPlaces(int maxDecimalPlaces) { + maxDecimalPlaces_ = maxDecimalPlaces; + } + + /*!@name Implementation of Handler + \see Handler + */ + //@{ + + bool Null() { Prefix(kNullType); return EndValue(WriteNull()); } + bool Bool(bool b) { Prefix(b ? kTrueType : kFalseType); return EndValue(WriteBool(b)); } + bool Int(int i) { Prefix(kNumberType); return EndValue(WriteInt(i)); } + bool Uint(unsigned u) { Prefix(kNumberType); return EndValue(WriteUint(u)); } + bool Int64(int64_t i64) { Prefix(kNumberType); return EndValue(WriteInt64(i64)); } + bool Uint64(uint64_t u64) { Prefix(kNumberType); return EndValue(WriteUint64(u64)); } + + //! Writes the given \c double value to the stream + /*! + \param d The value to be written. + \return Whether it is succeed. + */ + bool Double(double d) { Prefix(kNumberType); return EndValue(WriteDouble(d)); } + + bool RawNumber(const Ch* str, SizeType length, bool copy = false) { + RAPIDJSON_ASSERT(str != 0); + (void)copy; + Prefix(kNumberType); + return EndValue(WriteString(str, length)); + } + + bool String(const Ch* str, SizeType length, bool copy = false) { + RAPIDJSON_ASSERT(str != 0); + (void)copy; + Prefix(kStringType); + return EndValue(WriteString(str, length)); + } + +#if RAPIDJSON_HAS_STDSTRING + bool String(const std::basic_string<Ch>& str) { + return String(str.data(), SizeType(str.size())); + } +#endif + + bool StartObject() { + Prefix(kObjectType); + new (level_stack_.template Push<Level>()) Level(false); + return WriteStartObject(); + } + + bool Key(const Ch* str, SizeType length, bool copy = false) { return String(str, length, copy); } + +#if RAPIDJSON_HAS_STDSTRING + bool Key(const std::basic_string<Ch>& str) + { + return Key(str.data(), SizeType(str.size())); + } +#endif + + bool EndObject(SizeType memberCount = 0) { + (void)memberCount; + RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level)); // not inside an Object + RAPIDJSON_ASSERT(!level_stack_.template Top<Level>()->inArray); // currently inside an Array, not Object + RAPIDJSON_ASSERT(0 == level_stack_.template Top<Level>()->valueCount % 2); // Object has a Key without a Value + level_stack_.template Pop<Level>(1); + return EndValue(WriteEndObject()); + } + + bool StartArray() { + Prefix(kArrayType); + new (level_stack_.template Push<Level>()) Level(true); + return WriteStartArray(); + } + + bool EndArray(SizeType elementCount = 0) { + (void)elementCount; + RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level)); + RAPIDJSON_ASSERT(level_stack_.template Top<Level>()->inArray); + level_stack_.template Pop<Level>(1); + return EndValue(WriteEndArray()); + } + //@} + + /*! @name Convenience extensions */ + //@{ + + //! Simpler but slower overload. + bool String(const Ch* const& str) { return String(str, internal::StrLen(str)); } + bool Key(const Ch* const& str) { return Key(str, internal::StrLen(str)); } + + //@} + + //! Write a raw JSON value. + /*! + For user to write a stringified JSON as a value. + + \param json A well-formed JSON value. It should not contain null character within [0, length - 1] range. + \param length Length of the json. + \param type Type of the root of json. + */ + bool RawValue(const Ch* json, size_t length, Type type) { + RAPIDJSON_ASSERT(json != 0); + Prefix(type); + return EndValue(WriteRawValue(json, length)); + } + + //! Flush the output stream. + /*! + Allows the user to flush the output stream immediately. + */ + void Flush() { + os_->Flush(); + } + + static const size_t kDefaultLevelDepth = 32; + +protected: + //! Information for each nested level + struct Level { + Level(bool inArray_) : valueCount(0), inArray(inArray_) {} + size_t valueCount; //!< number of values in this level + bool inArray; //!< true if in array, otherwise in object + }; + + bool WriteNull() { + PutReserve(*os_, 4); + PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'u'); PutUnsafe(*os_, 'l'); PutUnsafe(*os_, 'l'); return true; + } + + bool WriteBool(bool b) { + if (b) { + PutReserve(*os_, 4); + PutUnsafe(*os_, 't'); PutUnsafe(*os_, 'r'); PutUnsafe(*os_, 'u'); PutUnsafe(*os_, 'e'); + } + else { + PutReserve(*os_, 5); + PutUnsafe(*os_, 'f'); PutUnsafe(*os_, 'a'); PutUnsafe(*os_, 'l'); PutUnsafe(*os_, 's'); PutUnsafe(*os_, 'e'); + } + return true; + } + + bool WriteInt(int i) { + char buffer[11]; + const char* end = internal::i32toa(i, buffer); + PutReserve(*os_, static_cast<size_t>(end - buffer)); + for (const char* p = buffer; p != end; ++p) + PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p)); + return true; + } + + bool WriteUint(unsigned u) { + char buffer[10]; + const char* end = internal::u32toa(u, buffer); + PutReserve(*os_, static_cast<size_t>(end - buffer)); + for (const char* p = buffer; p != end; ++p) + PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p)); + return true; + } + + bool WriteInt64(int64_t i64) { + char buffer[21]; + const char* end = internal::i64toa(i64, buffer); + PutReserve(*os_, static_cast<size_t>(end - buffer)); + for (const char* p = buffer; p != end; ++p) + PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p)); + return true; + } + + bool WriteUint64(uint64_t u64) { + char buffer[20]; + char* end = internal::u64toa(u64, buffer); + PutReserve(*os_, static_cast<size_t>(end - buffer)); + for (char* p = buffer; p != end; ++p) + PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p)); + return true; + } + + bool WriteDouble(double d) { + if (internal::Double(d).IsNanOrInf()) { + if (!(writeFlags & kWriteNanAndInfFlag)) + return false; + if (internal::Double(d).IsNan()) { + PutReserve(*os_, 3); + PutUnsafe(*os_, 'N'); PutUnsafe(*os_, 'a'); PutUnsafe(*os_, 'N'); + return true; + } + if (internal::Double(d).Sign()) { + PutReserve(*os_, 9); + PutUnsafe(*os_, '-'); + } + else + PutReserve(*os_, 8); + PutUnsafe(*os_, 'I'); PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'f'); + PutUnsafe(*os_, 'i'); PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'i'); PutUnsafe(*os_, 't'); PutUnsafe(*os_, 'y'); + return true; + } + + char buffer[25]; + char* end = internal::dtoa(d, buffer, maxDecimalPlaces_); + PutReserve(*os_, static_cast<size_t>(end - buffer)); + for (char* p = buffer; p != end; ++p) + PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p)); + return true; + } + + bool WriteString(const Ch* str, SizeType length) { + static const typename OutputStream::Ch hexDigits[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; + static const char escape[256] = { +#define Z16 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 + //0 1 2 3 4 5 6 7 8 9 A B C D E F + 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'b', 't', 'n', 'u', 'f', 'r', 'u', 'u', // 00 + 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', // 10 + 0, 0, '"', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20 + Z16, Z16, // 30~4F + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,'\\', 0, 0, 0, // 50 + Z16, Z16, Z16, Z16, Z16, Z16, Z16, Z16, Z16, Z16 // 60~FF +#undef Z16 + }; + + if (TargetEncoding::supportUnicode) + PutReserve(*os_, 2 + length * 6); // "\uxxxx..." + else + PutReserve(*os_, 2 + length * 12); // "\uxxxx\uyyyy..." + + PutUnsafe(*os_, '\"'); + GenericStringStream<SourceEncoding> is(str); + while (ScanWriteUnescapedString(is, length)) { + const Ch c = is.Peek(); + if (!TargetEncoding::supportUnicode && static_cast<unsigned>(c) >= 0x80) { + // Unicode escaping + unsigned codepoint; + if (RAPIDJSON_UNLIKELY(!SourceEncoding::Decode(is, &codepoint))) + return false; + PutUnsafe(*os_, '\\'); + PutUnsafe(*os_, 'u'); + if (codepoint <= 0xD7FF || (codepoint >= 0xE000 && codepoint <= 0xFFFF)) { + PutUnsafe(*os_, hexDigits[(codepoint >> 12) & 15]); + PutUnsafe(*os_, hexDigits[(codepoint >> 8) & 15]); + PutUnsafe(*os_, hexDigits[(codepoint >> 4) & 15]); + PutUnsafe(*os_, hexDigits[(codepoint ) & 15]); + } + else { + RAPIDJSON_ASSERT(codepoint >= 0x010000 && codepoint <= 0x10FFFF); + // Surrogate pair + unsigned s = codepoint - 0x010000; + unsigned lead = (s >> 10) + 0xD800; + unsigned trail = (s & 0x3FF) + 0xDC00; + PutUnsafe(*os_, hexDigits[(lead >> 12) & 15]); + PutUnsafe(*os_, hexDigits[(lead >> 8) & 15]); + PutUnsafe(*os_, hexDigits[(lead >> 4) & 15]); + PutUnsafe(*os_, hexDigits[(lead ) & 15]); + PutUnsafe(*os_, '\\'); + PutUnsafe(*os_, 'u'); + PutUnsafe(*os_, hexDigits[(trail >> 12) & 15]); + PutUnsafe(*os_, hexDigits[(trail >> 8) & 15]); + PutUnsafe(*os_, hexDigits[(trail >> 4) & 15]); + PutUnsafe(*os_, hexDigits[(trail ) & 15]); + } + } + else if ((sizeof(Ch) == 1 || static_cast<unsigned>(c) < 256) && RAPIDJSON_UNLIKELY(escape[static_cast<unsigned char>(c)])) { + is.Take(); + PutUnsafe(*os_, '\\'); + PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(escape[static_cast<unsigned char>(c)])); + if (escape[static_cast<unsigned char>(c)] == 'u') { + PutUnsafe(*os_, '0'); + PutUnsafe(*os_, '0'); + PutUnsafe(*os_, hexDigits[static_cast<unsigned char>(c) >> 4]); + PutUnsafe(*os_, hexDigits[static_cast<unsigned char>(c) & 0xF]); + } + } + else if (RAPIDJSON_UNLIKELY(!(writeFlags & kWriteValidateEncodingFlag ? + Transcoder<SourceEncoding, TargetEncoding>::Validate(is, *os_) : + Transcoder<SourceEncoding, TargetEncoding>::TranscodeUnsafe(is, *os_)))) + return false; + } + PutUnsafe(*os_, '\"'); + return true; + } + + bool ScanWriteUnescapedString(GenericStringStream<SourceEncoding>& is, size_t length) { + return RAPIDJSON_LIKELY(is.Tell() < length); + } + + bool WriteStartObject() { os_->Put('{'); return true; } + bool WriteEndObject() { os_->Put('}'); return true; } + bool WriteStartArray() { os_->Put('['); return true; } + bool WriteEndArray() { os_->Put(']'); return true; } + + bool WriteRawValue(const Ch* json, size_t length) { + PutReserve(*os_, length); + GenericStringStream<SourceEncoding> is(json); + while (RAPIDJSON_LIKELY(is.Tell() < length)) { + RAPIDJSON_ASSERT(is.Peek() != '\0'); + if (RAPIDJSON_UNLIKELY(!(writeFlags & kWriteValidateEncodingFlag ? + Transcoder<SourceEncoding, TargetEncoding>::Validate(is, *os_) : + Transcoder<SourceEncoding, TargetEncoding>::TranscodeUnsafe(is, *os_)))) + return false; + } + return true; + } + + void Prefix(Type type) { + (void)type; + if (RAPIDJSON_LIKELY(level_stack_.GetSize() != 0)) { // this value is not at root + Level* level = level_stack_.template Top<Level>(); + if (level->valueCount > 0) { + if (level->inArray) + os_->Put(','); // add comma if it is not the first element in array + else // in object + os_->Put((level->valueCount % 2 == 0) ? ',' : ':'); + } + if (!level->inArray && level->valueCount % 2 == 0) + RAPIDJSON_ASSERT(type == kStringType); // if it's in object, then even number should be a name + level->valueCount++; + } + else { + RAPIDJSON_ASSERT(!hasRoot_); // Should only has one and only one root. + hasRoot_ = true; + } + } + + // Flush the value if it is the top level one. + bool EndValue(bool ret) { + if (RAPIDJSON_UNLIKELY(level_stack_.Empty())) // end of json text + Flush(); + return ret; + } + + OutputStream* os_; + internal::Stack<StackAllocator> level_stack_; + int maxDecimalPlaces_; + bool hasRoot_; + +private: + // Prohibit copy constructor & assignment operator. + Writer(const Writer&); + Writer& operator=(const Writer&); +}; + +// Full specialization for StringStream to prevent memory copying + +template<> +inline bool Writer<StringBuffer>::WriteInt(int i) { + char *buffer = os_->Push(11); + const char* end = internal::i32toa(i, buffer); + os_->Pop(static_cast<size_t>(11 - (end - buffer))); + return true; +} + +template<> +inline bool Writer<StringBuffer>::WriteUint(unsigned u) { + char *buffer = os_->Push(10); + const char* end = internal::u32toa(u, buffer); + os_->Pop(static_cast<size_t>(10 - (end - buffer))); + return true; +} + +template<> +inline bool Writer<StringBuffer>::WriteInt64(int64_t i64) { + char *buffer = os_->Push(21); + const char* end = internal::i64toa(i64, buffer); + os_->Pop(static_cast<size_t>(21 - (end - buffer))); + return true; +} + +template<> +inline bool Writer<StringBuffer>::WriteUint64(uint64_t u) { + char *buffer = os_->Push(20); + const char* end = internal::u64toa(u, buffer); + os_->Pop(static_cast<size_t>(20 - (end - buffer))); + return true; +} + +template<> +inline bool Writer<StringBuffer>::WriteDouble(double d) { + if (internal::Double(d).IsNanOrInf()) { + // Note: This code path can only be reached if (RAPIDJSON_WRITE_DEFAULT_FLAGS & kWriteNanAndInfFlag). + if (!(kWriteDefaultFlags & kWriteNanAndInfFlag)) + return false; + if (internal::Double(d).IsNan()) { + PutReserve(*os_, 3); + PutUnsafe(*os_, 'N'); PutUnsafe(*os_, 'a'); PutUnsafe(*os_, 'N'); + return true; + } + if (internal::Double(d).Sign()) { + PutReserve(*os_, 9); + PutUnsafe(*os_, '-'); + } + else + PutReserve(*os_, 8); + PutUnsafe(*os_, 'I'); PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'f'); + PutUnsafe(*os_, 'i'); PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'i'); PutUnsafe(*os_, 't'); PutUnsafe(*os_, 'y'); + return true; + } + + char *buffer = os_->Push(25); + char* end = internal::dtoa(d, buffer, maxDecimalPlaces_); + os_->Pop(static_cast<size_t>(25 - (end - buffer))); + return true; +} + +#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42) +template<> +inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is, size_t length) { + if (length < 16) + return RAPIDJSON_LIKELY(is.Tell() < length); + + if (!RAPIDJSON_LIKELY(is.Tell() < length)) + return false; + + const char* p = is.src_; + const char* end = is.head_ + length; + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + const char* endAligned = reinterpret_cast<const char*>(reinterpret_cast<size_t>(end) & static_cast<size_t>(~15)); + if (nextAligned > end) + return true; + + while (p != nextAligned) + if (*p < 0x20 || *p == '\"' || *p == '\\') { + is.src_ = p; + return RAPIDJSON_LIKELY(is.Tell() < length); + } + else + os_->PutUnsafe(*p++); + + // The rest of string using SIMD + static const char dquote[16] = { '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"' }; + static const char bslash[16] = { '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\' }; + static const char space[16] = { 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F }; + const __m128i dq = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&dquote[0])); + const __m128i bs = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&bslash[0])); + const __m128i sp = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&space[0])); + + for (; p != endAligned; p += 16) { + const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p)); + const __m128i t1 = _mm_cmpeq_epi8(s, dq); + const __m128i t2 = _mm_cmpeq_epi8(s, bs); + const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x1F) == 0x1F + const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3); + unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x)); + if (RAPIDJSON_UNLIKELY(r != 0)) { // some of characters is escaped + SizeType len; +#ifdef _MSC_VER // Find the index of first escaped + unsigned long offset; + _BitScanForward(&offset, r); + len = offset; +#else + len = static_cast<SizeType>(__builtin_ffs(r) - 1); +#endif + char* q = reinterpret_cast<char*>(os_->PushUnsafe(len)); + for (size_t i = 0; i < len; i++) + q[i] = p[i]; + + p += len; + break; + } + _mm_storeu_si128(reinterpret_cast<__m128i *>(os_->PushUnsafe(16)), s); + } + + is.src_ = p; + return RAPIDJSON_LIKELY(is.Tell() < length); +} +#elif defined(RAPIDJSON_NEON) +template<> +inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is, size_t length) { + if (length < 16) + return RAPIDJSON_LIKELY(is.Tell() < length); + + if (!RAPIDJSON_LIKELY(is.Tell() < length)) + return false; + + const char* p = is.src_; + const char* end = is.head_ + length; + const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15)); + const char* endAligned = reinterpret_cast<const char*>(reinterpret_cast<size_t>(end) & static_cast<size_t>(~15)); + if (nextAligned > end) + return true; + + while (p != nextAligned) + if (*p < 0x20 || *p == '\"' || *p == '\\') { + is.src_ = p; + return RAPIDJSON_LIKELY(is.Tell() < length); + } + else + os_->PutUnsafe(*p++); + + // The rest of string using SIMD + const uint8x16_t s0 = vmovq_n_u8('"'); + const uint8x16_t s1 = vmovq_n_u8('\\'); + const uint8x16_t s2 = vmovq_n_u8('\b'); + const uint8x16_t s3 = vmovq_n_u8(32); + + for (; p != endAligned; p += 16) { + const uint8x16_t s = vld1q_u8(reinterpret_cast<const uint8_t *>(p)); + uint8x16_t x = vceqq_u8(s, s0); + x = vorrq_u8(x, vceqq_u8(s, s1)); + x = vorrq_u8(x, vceqq_u8(s, s2)); + x = vorrq_u8(x, vcltq_u8(s, s3)); + + x = vrev64q_u8(x); // Rev in 64 + uint64_t low = vgetq_lane_u64(vreinterpretq_u64_u8(x), 0); // extract + uint64_t high = vgetq_lane_u64(vreinterpretq_u64_u8(x), 1); // extract + + SizeType len = 0; + bool escaped = false; + if (low == 0) { + if (high != 0) { + uint32_t lz = internal::clzll(high); + len = 8 + (lz >> 3); + escaped = true; + } + } else { + uint32_t lz = internal::clzll(low); + len = lz >> 3; + escaped = true; + } + if (RAPIDJSON_UNLIKELY(escaped)) { // some of characters is escaped + char* q = reinterpret_cast<char*>(os_->PushUnsafe(len)); + for (size_t i = 0; i < len; i++) + q[i] = p[i]; + + p += len; + break; + } + vst1q_u8(reinterpret_cast<uint8_t *>(os_->PushUnsafe(16)), s); + } + + is.src_ = p; + return RAPIDJSON_LIKELY(is.Tell() < length); +} +#endif // RAPIDJSON_NEON + +RAPIDJSON_NAMESPACE_END + +#if defined(_MSC_VER) || defined(__clang__) +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_RAPIDJSON_H_ diff --git a/vendor/github.com/Benau/go_rlottie/rlottie.h b/vendor/github.com/Benau/go_rlottie/rlottie.h new file mode 100644 index 00000000..67565691 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/rlottie.h @@ -0,0 +1,525 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _RLOTTIE_H_ +#define _RLOTTIE_H_ + +#include <future> +#include <vector> +#include <memory> + +#if defined _WIN32 || defined __CYGWIN__ + #ifdef RLOTTIE_BUILD + #define RLOTTIE_API __declspec(dllexport) + #else + #define RLOTTIE_API __declspec(dllimport) + #endif +#else + #ifdef RLOTTIE_BUILD + #define RLOTTIE_API __attribute__ ((visibility ("default"))) + #else + #define RLOTTIE_API + #endif +#endif + +class AnimationImpl; +struct LOTNode; +struct LOTLayerNode; + +namespace rlottie { + +/** + * @brief Configures rlottie model cache policy. + * + * Provides Library level control to configure model cache + * policy. Setting it to 0 will disable + * the cache as well as flush all the previously cached content. + * + * @param[in] cacheSize Maximum Model Cache size. + * + * @note to disable Caching configure with 0 size. + * @note to flush the current Cache content configure it with 0 and + * then reconfigure with the new size. + * + * @internal + */ +RLOTTIE_API void configureModelCacheSize(size_t cacheSize); + +struct Color { + Color() = default; + Color(float r, float g , float b):_r(r), _g(g), _b(b){} + float r() const {return _r;} + float g() const {return _g;} + float b() const {return _b;} +private: + float _r{0}; + float _g{0}; + float _b{0}; +}; + +struct Size { + Size() = default; + Size(float w, float h):_w(w), _h(h){} + float w() const {return _w;} + float h() const {return _h;} +private: + float _w{0}; + float _h{0}; +}; + +struct Point { + Point() = default; + Point(float x, float y):_x(x), _y(y){} + float x() const {return _x;} + float y() const {return _y;} +private: + float _x{0}; + float _y{0}; +}; + +struct FrameInfo { + explicit FrameInfo(uint32_t frame): _frameNo(frame){} + uint32_t curFrame() const {return _frameNo;} +private: + uint32_t _frameNo; +}; + +enum class Property { + FillColor, /*!< Color property of Fill object , value type is rlottie::Color */ + FillOpacity, /*!< Opacity property of Fill object , value type is float [ 0 .. 100] */ + StrokeColor, /*!< Color property of Stroke object , value type is rlottie::Color */ + StrokeOpacity, /*!< Opacity property of Stroke object , value type is float [ 0 .. 100] */ + StrokeWidth, /*!< stroke width property of Stroke object , value type is float */ + TrAnchor, /*!< Transform Anchor property of Layer and Group object , value type is rlottie::Point */ + TrPosition, /*!< Transform Position property of Layer and Group object , value type is rlottie::Point */ + TrScale, /*!< Transform Scale property of Layer and Group object , value type is rlottie::Size. range[0 ..100] */ + TrRotation, /*!< Transform Rotation property of Layer and Group object , value type is float. range[0 .. 360] in degrees*/ + TrOpacity /*!< Transform Opacity property of Layer and Group object , value type is float [ 0 .. 100] */ +}; + +struct Color_Type{}; +struct Point_Type{}; +struct Size_Type{}; +struct Float_Type{}; +template <typename T> struct MapType; + +class RLOTTIE_API Surface { +public: + /** + * @brief Surface object constructor. + * + * @param[in] buffer surface buffer. + * @param[in] width surface width. + * @param[in] height surface height. + * @param[in] bytesPerLine number of bytes in a surface scanline. + * + * @note Default surface format is ARGB32_Premultiplied. + * + * @internal + */ + Surface(uint32_t *buffer, size_t width, size_t height, size_t bytesPerLine); + + /** + * @brief Sets the Draw Area available on the Surface. + * + * Lottie will use the draw region size to generate frame image + * and will update only the draw rgion of the surface. + * + * @param[in] x region area x position. + * @param[in] y region area y position. + * @param[in] width region area width. + * @param[in] height region area height. + * + * @note Default surface format is ARGB32_Premultiplied. + * @note Default draw region area is [ 0 , 0, surface width , surface height] + * + * @internal + */ + void setDrawRegion(size_t x, size_t y, size_t width, size_t height); + + /** + * @brief Returns width of the surface. + * + * @return surface width + * + * @internal + * + */ + size_t width() const {return mWidth;} + + /** + * @brief Returns height of the surface. + * + * @return surface height + * + * @internal + */ + size_t height() const {return mHeight;} + + /** + * @brief Returns number of bytes in the surface scanline. + * + * @return number of bytes in scanline. + * + * @internal + */ + size_t bytesPerLine() const {return mBytesPerLine;} + + /** + * @brief Returns buffer attached tp the surface. + * + * @return buffer attaced to the Surface. + * + * @internal + */ + uint32_t *buffer() const {return mBuffer;} + + /** + * @brief Returns drawable area width of the surface. + * + * @return drawable area width + * + * @note Default value is width() of the surface + * + * @internal + * + */ + size_t drawRegionWidth() const {return mDrawArea.w;} + + /** + * @brief Returns drawable area height of the surface. + * + * @return drawable area height + * + * @note Default value is height() of the surface + * + * @internal + */ + size_t drawRegionHeight() const {return mDrawArea.h;} + + /** + * @brief Returns drawable area's x position of the surface. + * + * @return drawable area's x potition. + * + * @note Default value is 0 + * + * @internal + */ + size_t drawRegionPosX() const {return mDrawArea.x;} + + /** + * @brief Returns drawable area's y position of the surface. + * + * @return drawable area's y potition. + * + * @note Default value is 0 + * + * @internal + */ + size_t drawRegionPosY() const {return mDrawArea.y;} + + /** + * @brief Default constructor. + */ + Surface() = default; +private: + uint32_t *mBuffer{nullptr}; + size_t mWidth{0}; + size_t mHeight{0}; + size_t mBytesPerLine{0}; + struct { + size_t x{0}; + size_t y{0}; + size_t w{0}; + size_t h{0}; + }mDrawArea; +}; + +using MarkerList = std::vector<std::tuple<std::string, int , int>>; +/** + * @brief https://helpx.adobe.com/after-effects/using/layer-markers-composition-markers.html + * Markers exported form AE are used to describe a segmnet of an animation {comment/tag , startFrame, endFrame} + * Marker can be use to devide a resource in to separate animations by tagging the segment with comment string , + * start frame and duration of that segment. + */ + +using LayerInfoList = std::vector<std::tuple<std::string, int , int>>; + + +using ColorFilter = std::function<void(float &r , float &g, float &b)>; + +class RLOTTIE_API Animation { +public: + + /** + * @brief Constructs an animation object from file path. + * + * @param[in] path Lottie resource file path + * @param[in] cachePolicy whether to cache or not the model data. + * use only when need to explicit disabl caching for a + * particular resource. To disable caching at library level + * use @see configureModelCacheSize() instead. + * + * @return Animation object that can render the contents of the + * Lottie resource represented by file path. + * + * @internal + */ + static std::unique_ptr<Animation> + loadFromFile(const std::string &path, bool cachePolicy=true); + + /** + * @brief Constructs an animation object from JSON string data. + * + * @param[in] jsonData The JSON string data. + * @param[in] key the string that will be used to cache the JSON string data. + * @param[in] resourcePath the path will be used to search for external resource. + * @param[in] cachePolicy whether to cache or not the model data. + * use only when need to explicit disabl caching for a + * particular resource. To disable caching at library level + * use @see configureModelCacheSize() instead. + * + * @return Animation object that can render the contents of the + * Lottie resource represented by JSON string data. + * + * @internal + */ + static std::unique_ptr<Animation> + loadFromData(std::string jsonData, const std::string &key, + const std::string &resourcePath="", bool cachePolicy=true); + + /** + * @brief Constructs an animation object from JSON string data and update. + * the color properties using ColorFilter. + + * @param[in] jsonData The JSON string data. + * @param[in] resourcePath the path will be used to search for external resource. + * @param[in] filter The color filter that will be applied for each color property + * found during parsing. + + * @return Animation object that can render the contents of the + * Lottie resource represented by JSON string data. + * + * @internal + */ + static std::unique_ptr<Animation> + loadFromData(std::string jsonData, std::string resourcePath, ColorFilter filter); + + /** + * @brief Returns default framerate of the Lottie resource. + * + * @return framerate of the Lottie resource + * + * @internal + * + */ + double frameRate() const; + + /** + * @brief Returns total number of frames present in the Lottie resource. + * + * @return frame count of the Lottie resource. + * + * @note frame number starts with 0. + * + * @internal + */ + size_t totalFrame() const; + + /** + * @brief Returns default viewport size of the Lottie resource. + * + * @param[out] width default width of the viewport. + * @param[out] height default height of the viewport. + * + * @internal + * + */ + void size(size_t &width, size_t &height) const; + + /** + * @brief Returns total animation duration of Lottie resource in second. + * it uses totalFrame() and frameRate() to calculate the duration. + * duration = totalFrame() / frameRate(). + * + * @return total animation duration in second. + * @retval 0 if the Lottie resource has no animation. + * + * @see totalFrame() + * @see frameRate() + * + * @internal + */ + double duration() const; + + /** + * @brief Returns frame number for a given position. + * this function helps to map the position value retuned + * by the animator to a frame number in side the Lottie resource. + * frame_number = lerp(start_frame, endframe, pos); + * + * @param[in] pos normalized position value [0 ... 1] + * + * @return frame numer maps to the position value [startFrame .... endFrame] + * + * @internal + */ + size_t frameAtPos(double pos); + + /** + * @brief Renders the content to surface Asynchronously. + * it gives a future in return to get the result of the + * rendering at a future point. + * To get best performance user has to start rendering as soon as + * it finds that content at {frameNo} has to be rendered and get the + * result from the future at the last moment when the surface is needed + * to draw into the screen. + * + * + * @param[in] frameNo Content corresponds to the @p frameNo needs to be drawn + * @param[in] surface Surface in which content will be drawn + * @param[in] keepAspectRatio whether to keep the aspect ratio while scaling the content. + * + * @return future that will hold the result when rendering finished. + * + * for Synchronus rendering @see renderSync + * + * @see Surface + * @internal + */ + std::future<Surface> render(size_t frameNo, Surface surface, bool keepAspectRatio=true); + + /** + * @brief Renders the content to surface synchronously. + * for performance use the async rendering @see render + * + * @param[in] frameNo Content corresponds to the @p frameNo needs to be drawn + * @param[in] surface Surface in which content will be drawn + * @param[in] keepAspectRatio whether to keep the aspect ratio while scaling the content. + * + * @internal + */ + void renderSync(size_t frameNo, Surface surface, bool keepAspectRatio=true); + + /** + * @brief Returns root layer of the composition updated with + * content of the Lottie resource at frame number @p frameNo. + * + * @param[in] frameNo Content corresponds to the @p frameNo needs to be extracted. + * @param[in] width content viewbox width + * @param[in] height content viewbox height + * + * @return Root layer node. + * + * @internal + */ + const LOTLayerNode * renderTree(size_t frameNo, size_t width, size_t height) const; + + /** + * @brief Returns Composition Markers. + * + * + * @return returns MarkerList of the Composition. + * + * @see MarkerList + * @internal + */ + const MarkerList& markers() const; + + /** + * @brief Returns Layer information{name, inFrame, outFrame} of all the child layers of the composition. + * + * + * @return List of Layer Information of the Composition. + * + * @see LayerInfoList + * @internal + */ + const LayerInfoList& layers() const; + + /** + * @brief Sets property value for the specified {@link KeyPath}. This {@link KeyPath} can resolve + * to multiple contents. In that case, the callback's value will apply to all of them. + * + * Keypath should conatin object names separated by (.) and can handle globe(**) or wildchar(*). + * + * @usage + * To change fillcolor property of fill1 object in the layer1->group1->fill1 hirarchy to RED color + * + * player->setValue<rlottie::Property::FillColor>("layer1.group1.fill1", rlottie::Color(1, 0, 0); + * + * if all the color property inside group1 needs to be changed to GREEN color + * + * player->setValue<rlottie::Property::FillColor>("**.group1.**", rlottie::Color(0, 1, 0); + * + * @internal + */ + template<Property prop, typename AnyValue> + void setValue(const std::string &keypath, AnyValue value) + { + setValue(MapType<std::integral_constant<Property, prop>>{}, prop, keypath, value); + } + + /** + * @brief default destructor + * + * @internal + */ + ~Animation(); + +private: + void setValue(Color_Type, Property, const std::string &, Color); + void setValue(Float_Type, Property, const std::string &, float); + void setValue(Size_Type, Property, const std::string &, Size); + void setValue(Point_Type, Property, const std::string &, Point); + + void setValue(Color_Type, Property, const std::string &, std::function<Color(const FrameInfo &)> &&); + void setValue(Float_Type, Property, const std::string &, std::function<float(const FrameInfo &)> &&); + void setValue(Size_Type, Property, const std::string &, std::function<Size(const FrameInfo &)> &&); + void setValue(Point_Type, Property, const std::string &, std::function<Point(const FrameInfo &)> &&); + /** + * @brief default constructor + * + * @internal + */ + Animation(); + + std::unique_ptr<AnimationImpl> d; +}; + +//Map Property to Value type +template<> struct MapType<std::integral_constant<Property, Property::FillColor>>: Color_Type{}; +template<> struct MapType<std::integral_constant<Property, Property::StrokeColor>>: Color_Type{}; +template<> struct MapType<std::integral_constant<Property, Property::FillOpacity>>: Float_Type{}; +template<> struct MapType<std::integral_constant<Property, Property::StrokeOpacity>>: Float_Type{}; +template<> struct MapType<std::integral_constant<Property, Property::StrokeWidth>>: Float_Type{}; +template<> struct MapType<std::integral_constant<Property, Property::TrRotation>>: Float_Type{}; +template<> struct MapType<std::integral_constant<Property, Property::TrOpacity>>: Float_Type{}; +template<> struct MapType<std::integral_constant<Property, Property::TrAnchor>>: Point_Type{}; +template<> struct MapType<std::integral_constant<Property, Property::TrPosition>>: Point_Type{}; +template<> struct MapType<std::integral_constant<Property, Property::TrScale>>: Size_Type{}; + + +} // namespace lotplayer + +#endif // _RLOTTIE_H_ diff --git a/vendor/github.com/Benau/go_rlottie/rlottie_capi.h b/vendor/github.com/Benau/go_rlottie/rlottie_capi.h new file mode 100644 index 00000000..7c883fac --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/rlottie_capi.h @@ -0,0 +1,299 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _RLOTTIE_CAPI_H_ +#define _RLOTTIE_CAPI_H_ + +#include <stddef.h> +#include <stdint.h> +#include "rlottiecommon.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + LOTTIE_ANIMATION_PROPERTY_FILLCOLOR, /*!< Color property of Fill object , value type is float [0 ... 1] */ + LOTTIE_ANIMATION_PROPERTY_FILLOPACITY, /*!< Opacity property of Fill object , value type is float [ 0 .. 100] */ + LOTTIE_ANIMATION_PROPERTY_STROKECOLOR, /*!< Color property of Stroke object , value type is float [0 ... 1] */ + LOTTIE_ANIMATION_PROPERTY_STROKEOPACITY, /*!< Opacity property of Stroke object , value type is float [ 0 .. 100] */ + LOTTIE_ANIMATION_PROPERTY_STROKEWIDTH, /*!< stroke with property of Stroke object , value type is float */ + LOTTIE_ANIMATION_PROPERTY_TR_ANCHOR, /*!< Transform Anchor property of Layer and Group object , value type is int */ + LOTTIE_ANIMATION_PROPERTY_TR_POSITION, /*!< Transform Position property of Layer and Group object , value type is int */ + LOTTIE_ANIMATION_PROPERTY_TR_SCALE, /*!< Transform Scale property of Layer and Group object , value type is float range[0 ..100] */ + LOTTIE_ANIMATION_PROPERTY_TR_ROTATION, /*!< Transform Scale property of Layer and Group object , value type is float. range[0 .. 360] in degrees*/ + LOTTIE_ANIMATION_PROPERTY_TR_OPACITY /*!< Transform Opacity property of Layer and Group object , value type is float [ 0 .. 100] */ +}Lottie_Animation_Property; + +typedef struct Lottie_Animation_S Lottie_Animation; + +/** + * @brief Constructs an animation object from file path. + * + * @param[in] path Lottie resource file path + * + * @return Animation object that can build the contents of the + * Lottie resource represented by file path. + * + * @see lottie_animation_destroy() + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API Lottie_Animation *lottie_animation_from_file(const char *path); + +/** + * @brief Constructs an animation object from JSON string data. + * + * @param[in] data The JSON string data. + * @param[in] key the string that will be used to cache the JSON string data. + * @param[in] resource_path the path that will be used to load external resource needed by the JSON data. + * + * @return Animation object that can build the contents of the + * Lottie resource represented by JSON string data. + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API Lottie_Animation *lottie_animation_from_data(const char *data, const char *key, const char *resource_path); + +/** + * @brief Free given Animation object resource. + * + * @param[in] animation Animation object to free. + * + * @see lottie_animation_from_file() + * @see lottie_animation_from_data() + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API void lottie_animation_destroy(Lottie_Animation *animation); + +/** + * @brief Returns default viewport size of the Lottie resource. + * + * @param[in] animation Animation object. + * @param[out] w default width of the viewport. + * @param[out] h default height of the viewport. + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API void lottie_animation_get_size(const Lottie_Animation *animation, size_t *width, size_t *height); + +/** + * @brief Returns total animation duration of Lottie resource in second. + * it uses totalFrame() and frameRate() to calculate the duration. + * duration = totalFrame() / frameRate(). + * + * @param[in] animation Animation object. + * + * @return total animation duration in second. + * @c 0 if the Lottie resource has no animation. + * + * @see lottie_animation_get_totalframe() + * @see lottie_animation_get_framerate() + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API double lottie_animation_get_duration(const Lottie_Animation *animation); + +/** + * @brief Returns total number of frames present in the Lottie resource. + * + * @param[in] animation Animation object. + * + * @return frame count of the Lottie resource.* + * + * @note frame number starts with 0. + * + * @see lottie_animation_get_duration() + * @see lottie_animation_get_framerate() + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API size_t lottie_animation_get_totalframe(const Lottie_Animation *animation); + +/** + * @brief Returns default framerate of the Lottie resource. + * + * @param[in] animation Animation object. + * + * @return framerate of the Lottie resource + * + * @ingroup Lottie_Animation + * @internal + * + */ +RLOTTIE_API double lottie_animation_get_framerate(const Lottie_Animation *animation); + +/** + * @brief Get the render tree which contains the snapshot of the animation object + * at frame = @c frame_num, the content of the animation in that frame number. + * + * @param[in] animation Animation object. + * @param[in] frame_num Content corresponds to the @p frame_num needs to be drawn + * @param[in] width requested snapshot viewport width. + * @param[in] height requested snapshot viewport height. + * + * @return Animation snapshot tree. + * + * @note: User has to traverse the tree for rendering. + * + * @see LOTLayerNode + * @see LOTNode + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API const LOTLayerNode *lottie_animation_render_tree(Lottie_Animation *animation, size_t frame_num, size_t width, size_t height); + +/** + * @brief Maps position to frame number and returns it. + * + * @param[in] animation Animation object. + * @param[in] pos position in the range [ 0.0 .. 1.0 ]. + * + * @return mapped frame numbe in the range [ start_frame .. end_frame ]. + * @c 0 if the Lottie resource has no animation. + * + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API size_t lottie_animation_get_frame_at_pos(const Lottie_Animation *animation, float pos); + +/** + * @brief Request to render the content of the frame @p frame_num to buffer @p buffer. + * + * @param[in] animation Animation object. + * @param[in] frame_num the frame number needs to be rendered. + * @param[in] buffer surface buffer use for rendering. + * @param[in] width width of the surface + * @param[in] height height of the surface + * @param[in] bytes_per_line stride of the surface in bytes. + * + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API void lottie_animation_render(Lottie_Animation *animation, size_t frame_num, uint32_t *buffer, size_t width, size_t height, size_t bytes_per_line); + +/** + * @brief Request to render the content of the frame @p frame_num to buffer @p buffer asynchronously. + * + * @param[in] animation Animation object. + * @param[in] frame_num the frame number needs to be rendered. + * @param[in] buffer surface buffer use for rendering. + * @param[in] width width of the surface + * @param[in] height height of the surface + * @param[in] bytes_per_line stride of the surface in bytes. + * + * @note user must call lottie_animation_render_flush() to make sure render is finished. + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API void lottie_animation_render_async(Lottie_Animation *animation, size_t frame_num, uint32_t *buffer, size_t width, size_t height, size_t bytes_per_line); + +/** + * @brief Request to finish the current async renderer job for this animation object. + * If render is finished then this call returns immidiately. + * If not, it waits till render job finish and then return. + * + * @param[in] animation Animation object. + * + * @warning User must call lottie_animation_render_async() and lottie_animation_render_flush() + * in pair to get the benefit of async rendering. + * + * @return the pixel buffer it finished rendering. + * + * @ingroup Lottie_Animation + * @internal + */ +RLOTTIE_API uint32_t *lottie_animation_render_flush(Lottie_Animation *animation); + + +/** + * @brief Request to change the properties of this animation object. + * Keypath should conatin object names separated by (.) and can handle globe(**) or wildchar(*) + * + * @usage + * To change fillcolor property of fill1 object in the layer1->group1->fill1 hirarchy to RED color + * + * lottie_animation_property_override(animation, LOTTIE_ANIMATION_PROPERTY_FILLCOLOR, "layer1.group1.fill1", 1.0, 0.0, 0.0); + * + * if all the color property inside group1 needs to be changed to GREEN color + * + * lottie_animation_property_override(animation, LOTTIE_ANIMATION_PROPERTY_FILLCOLOR, "**.group1.**", 1.0, 0.0, 0.0); + * + * @param[in] animation Animation object. + * @param[in] type Property type. (@p Lottie_Animation_Property) + * @param[in] keypath Specific content of target. + * @param[in] ... Property values. + * + * @ingroup Lottie_Animation + * @internal + * */ +RLOTTIE_API void lottie_animation_property_override(Lottie_Animation *animation, const Lottie_Animation_Property type, const char *keypath, ...); + + +/** + * @brief Returns list of markers in the Lottie resource + * @p LOTMarkerList has a @p LOTMarker list and size of list + * @p LOTMarker has the marker's name, start frame, and end frame. + * + * @param[in] animation Animation object. + * + * @return The list of marker. If there is no marker, return null. + * + * @ingroup Lottie_Animation + * @internal + * */ +RLOTTIE_API const LOTMarkerList* lottie_animation_get_markerlist(Lottie_Animation *animation); + +/** + * @brief Configures rlottie model cache policy. + * + * Provides Library level control to configure model cache + * policy. Setting it to 0 will disable + * the cache as well as flush all the previously cached content. + * + * @param[in] cacheSize Maximum Model Cache size. + * + * @note to disable Caching configure with 0 size. + * @note to flush the current Cache content configure it with 0 and + * then reconfigure with the new size. + * + * @internal + */ +RLOTTIE_API void lottie_configure_model_cache_size(size_t cacheSize); + +#ifdef __cplusplus +} +#endif + +#endif //_RLOTTIE_CAPI_H_ + diff --git a/vendor/github.com/Benau/go_rlottie/rlottiecommon.h b/vendor/github.com/Benau/go_rlottie/rlottiecommon.h new file mode 100644 index 00000000..784fbe28 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/rlottiecommon.h @@ -0,0 +1,231 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _RLOTTIE_COMMON_H_ +#define _RLOTTIE_COMMON_H_ + +#if defined _WIN32 || defined __CYGWIN__ + #ifdef RLOTTIE_BUILD + #define RLOTTIE_API __declspec(dllexport) + #else + #define RLOTTIE_API __declspec(dllimport) + #endif +#else + #ifdef RLOTTIE_BUILD + #define RLOTTIE_API __attribute__ ((visibility ("default"))) + #else + #define RLOTTIE_API + #endif +#endif + + +/** + * @defgroup Lottie_Animation Lottie_Animation + * + * Lottie Animation is a modern style vector based animation design. Its animation + * resource(within json format) could be generated by Adobe After Effect using + * bodymovin plugin. You can find a good examples in Lottie Community which + * shares many free resources(see: www.lottiefiles.com). + * + * This Lottie_Animation is a common engine to manipulate, control Lottie + * Animation from the Lottie resource - json file. It provides a scene-graph + * node tree per frames by user demand as well as rasterized frame images. + * + */ + +/** + * @ingroup Lottie_Animation + */ + +typedef enum +{ + BrushSolid = 0, + BrushGradient +} LOTBrushType; + +typedef enum +{ + FillEvenOdd = 0, + FillWinding +} LOTFillRule; + +typedef enum +{ + JoinMiter = 0, + JoinBevel, + JoinRound +} LOTJoinStyle; + +typedef enum +{ + CapFlat = 0, + CapSquare, + CapRound +} LOTCapStyle; + +typedef enum +{ + GradientLinear = 0, + GradientRadial +} LOTGradientType; + +typedef struct LOTGradientStop +{ + float pos; + unsigned char r, g, b, a; +} LOTGradientStop; + +typedef enum +{ + MaskAdd = 0, + MaskSubstract, + MaskIntersect, + MaskDifference +} LOTMaskType; + +typedef struct LOTMask { + struct { + const float *ptPtr; + size_t ptCount; + const char* elmPtr; + size_t elmCount; + } mPath; + LOTMaskType mMode; + unsigned char mAlpha; +}LOTMask; + +typedef enum +{ + MatteNone = 0, + MatteAlpha, + MatteAlphaInv, + MatteLuma, + MatteLumaInv +} LOTMatteType; + +typedef struct LOTMarker { + char *name; + size_t startframe; + size_t endframe; +} LOTMarker; + +typedef struct LOTMarkerList { + LOTMarker *ptr; + size_t size; +} LOTMarkerList; + +typedef struct LOTNode { + +#define ChangeFlagNone 0x0000 +#define ChangeFlagPath 0x0001 +#define ChangeFlagPaint 0x0010 +#define ChangeFlagAll (ChangeFlagPath & ChangeFlagPaint) + + struct { + const float *ptPtr; + size_t ptCount; + const char *elmPtr; + size_t elmCount; + } mPath; + + struct { + unsigned char r, g, b, a; + } mColor; + + struct { + unsigned char enable; + float width; + LOTCapStyle cap; + LOTJoinStyle join; + float miterLimit; + float *dashArray; + int dashArraySize; + } mStroke; + + struct { + LOTGradientType type; + LOTGradientStop *stopPtr; + size_t stopCount; + struct { + float x, y; + } start, end, center, focal; + float cradius; + float fradius; + } mGradient; + + struct { + unsigned char *data; + size_t width; + size_t height; + unsigned char mAlpha; + struct { + float m11; float m12; float m13; + float m21; float m22; float m23; + float m31; float m32; float m33; + } mMatrix; + } mImageInfo; + + int mFlag; + LOTBrushType mBrushType; + LOTFillRule mFillRule; + + const char *keypath; +} LOTNode; + + + +typedef struct LOTLayerNode { + + struct { + LOTMask *ptr; + size_t size; + } mMaskList; + + struct { + const float *ptPtr; + size_t ptCount; + const char *elmPtr; + size_t elmCount; + } mClipPath; + + struct { + struct LOTLayerNode **ptr; + size_t size; + } mLayerList; + + struct { + LOTNode **ptr; + size_t size; + } mNodeList; + + LOTMatteType mMatte; + int mVisible; + unsigned char mAlpha; + const char *keypath; + +} LOTLayerNode; + +/** + * @} + */ + +#endif // _RLOTTIE_COMMON_H_ diff --git a/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_math.cpp b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_math.cpp new file mode 100644 index 00000000..932f7ed4 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_math.cpp @@ -0,0 +1,461 @@ +/***************************************************************************/ +/* */ +/* fttrigon.c */ +/* */ +/* FreeType trigonometric functions (body). */ +/* */ +/* Copyright 2001-2005, 2012-2013 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include "vector_freetype_v_ft_math.h" +#include <math.h> + +//form https://github.com/chromium/chromium/blob/59afd8336009c9d97c22854c52e0382b62b3aa5e/third_party/abseil-cpp/absl/base/internal/bits.h + +#if defined(_MSC_VER) +#include <intrin.h> +static unsigned int __inline clz(unsigned int x) { + unsigned long r = 0; + if (x != 0) + { + _BitScanReverse(&r, x); + } + return r; +} +#define SW_FT_MSB(x) (clz(x)) +#elif defined(__GNUC__) +#define SW_FT_MSB(x) (31 - __builtin_clz(x)) +#else +static unsigned int __inline clz(unsigned int x) { + int c = 31; + x &= ~x + 1; + if (n & 0x0000FFFF) c -= 16; + if (n & 0x00FF00FF) c -= 8; + if (n & 0x0F0F0F0F) c -= 4; + if (n & 0x33333333) c -= 2; + if (n & 0x55555555) c -= 1; + return c; +} +#define SW_FT_MSB(x) (clz(x)) +#endif + + + + + +#define SW_FT_PAD_FLOOR(x, n) ((x) & ~((n)-1)) +#define SW_FT_PAD_ROUND(x, n) SW_FT_PAD_FLOOR((x) + ((n) / 2), n) +#define SW_FT_PAD_CEIL(x, n) SW_FT_PAD_FLOOR((x) + ((n)-1), n) + +#define SW_FT_BEGIN_STMNT do { +#define SW_FT_END_STMNT \ + } \ + while (0) +/* transfer sign leaving a positive number */ +#define SW_FT_MOVE_SIGN(x, s) \ + SW_FT_BEGIN_STMNT \ + if (x < 0) { \ + x = -x; \ + s = -s; \ + } \ + SW_FT_END_STMNT + +SW_FT_Long SW_FT_MulFix(SW_FT_Long a, SW_FT_Long b) +{ + SW_FT_Int s = 1; + SW_FT_Long c; + + SW_FT_MOVE_SIGN(a, s); + SW_FT_MOVE_SIGN(b, s); + + c = (SW_FT_Long)(((SW_FT_Int64)a * b + 0x8000L) >> 16); + + return (s > 0) ? c : -c; +} + +SW_FT_Long SW_FT_MulDiv(SW_FT_Long a, SW_FT_Long b, SW_FT_Long c) +{ + SW_FT_Int s = 1; + SW_FT_Long d; + + SW_FT_MOVE_SIGN(a, s); + SW_FT_MOVE_SIGN(b, s); + SW_FT_MOVE_SIGN(c, s); + + d = (SW_FT_Long)(c > 0 ? ((SW_FT_Int64)a * b + (c >> 1)) / c : 0x7FFFFFFFL); + + return (s > 0) ? d : -d; +} + +SW_FT_Long SW_FT_DivFix(SW_FT_Long a, SW_FT_Long b) +{ + SW_FT_Int s = 1; + SW_FT_Long q; + + SW_FT_MOVE_SIGN(a, s); + SW_FT_MOVE_SIGN(b, s); + + q = (SW_FT_Long)(b > 0 ? (((SW_FT_UInt64)a << 16) + (b >> 1)) / b + : 0x7FFFFFFFL); + + return (s < 0 ? -q : q); +} + +/*************************************************************************/ +/* */ +/* This is a fixed-point CORDIC implementation of trigonometric */ +/* functions as well as transformations between Cartesian and polar */ +/* coordinates. The angles are represented as 16.16 fixed-point values */ +/* in degrees, i.e., the angular resolution is 2^-16 degrees. Note that */ +/* only vectors longer than 2^16*180/pi (or at least 22 bits) on a */ +/* discrete Cartesian grid can have the same or better angular */ +/* resolution. Therefore, to maintain this precision, some functions */ +/* require an interim upscaling of the vectors, whereas others operate */ +/* with 24-bit long vectors directly. */ +/* */ +/*************************************************************************/ + +/* the Cordic shrink factor 0.858785336480436 * 2^32 */ +#define SW_FT_TRIG_SCALE 0xDBD95B16UL + +/* the highest bit in overflow-safe vector components, */ +/* MSB of 0.858785336480436 * sqrt(0.5) * 2^30 */ +#define SW_FT_TRIG_SAFE_MSB 29 + +/* this table was generated for SW_FT_PI = 180L << 16, i.e. degrees */ +#define SW_FT_TRIG_MAX_ITERS 23 + +static const SW_FT_Fixed ft_trig_arctan_table[] = { + 1740967L, 919879L, 466945L, 234379L, 117304L, 58666L, 29335L, 14668L, + 7334L, 3667L, 1833L, 917L, 458L, 229L, 115L, 57L, + 29L, 14L, 7L, 4L, 2L, 1L}; + +/* multiply a given value by the CORDIC shrink factor */ +static SW_FT_Fixed ft_trig_downscale(SW_FT_Fixed val) +{ + SW_FT_Fixed s; + SW_FT_Int64 v; + + s = val; + val = SW_FT_ABS(val); + + v = (val * (SW_FT_Int64)SW_FT_TRIG_SCALE) + 0x100000000UL; + val = (SW_FT_Fixed)(v >> 32); + + return (s >= 0) ? val : -val; +} + +/* undefined and never called for zero vector */ +static SW_FT_Int ft_trig_prenorm(SW_FT_Vector* vec) +{ + SW_FT_Pos x, y; + SW_FT_Int shift; + + x = vec->x; + y = vec->y; + + shift = SW_FT_MSB(SW_FT_ABS(x) | SW_FT_ABS(y)); + + if (shift <= SW_FT_TRIG_SAFE_MSB) { + shift = SW_FT_TRIG_SAFE_MSB - shift; + vec->x = (SW_FT_Pos)((SW_FT_ULong)x << shift); + vec->y = (SW_FT_Pos)((SW_FT_ULong)y << shift); + } else { + shift -= SW_FT_TRIG_SAFE_MSB; + vec->x = x >> shift; + vec->y = y >> shift; + shift = -shift; + } + + return shift; +} + +static void ft_trig_pseudo_rotate(SW_FT_Vector* vec, SW_FT_Angle theta) +{ + SW_FT_Int i; + SW_FT_Fixed x, y, xtemp, b; + const SW_FT_Fixed* arctanptr; + + x = vec->x; + y = vec->y; + + /* Rotate inside [-PI/4,PI/4] sector */ + while (theta < -SW_FT_ANGLE_PI4) { + xtemp = y; + y = -x; + x = xtemp; + theta += SW_FT_ANGLE_PI2; + } + + while (theta > SW_FT_ANGLE_PI4) { + xtemp = -y; + y = x; + x = xtemp; + theta -= SW_FT_ANGLE_PI2; + } + + arctanptr = ft_trig_arctan_table; + + /* Pseudorotations, with right shifts */ + for (i = 1, b = 1; i < SW_FT_TRIG_MAX_ITERS; b <<= 1, i++) { + SW_FT_Fixed v1 = ((y + b) >> i); + SW_FT_Fixed v2 = ((x + b) >> i); + if (theta < 0) { + xtemp = x + v1; + y = y - v2; + x = xtemp; + theta += *arctanptr++; + } else { + xtemp = x - v1; + y = y + v2; + x = xtemp; + theta -= *arctanptr++; + } + } + + vec->x = x; + vec->y = y; +} + +static void ft_trig_pseudo_polarize(SW_FT_Vector* vec) +{ + SW_FT_Angle theta; + SW_FT_Int i; + SW_FT_Fixed x, y, xtemp, b; + const SW_FT_Fixed* arctanptr; + + x = vec->x; + y = vec->y; + + /* Get the vector into [-PI/4,PI/4] sector */ + if (y > x) { + if (y > -x) { + theta = SW_FT_ANGLE_PI2; + xtemp = y; + y = -x; + x = xtemp; + } else { + theta = y > 0 ? SW_FT_ANGLE_PI : -SW_FT_ANGLE_PI; + x = -x; + y = -y; + } + } else { + if (y < -x) { + theta = -SW_FT_ANGLE_PI2; + xtemp = -y; + y = x; + x = xtemp; + } else { + theta = 0; + } + } + + arctanptr = ft_trig_arctan_table; + + /* Pseudorotations, with right shifts */ + for (i = 1, b = 1; i < SW_FT_TRIG_MAX_ITERS; b <<= 1, i++) { + SW_FT_Fixed v1 = ((y + b) >> i); + SW_FT_Fixed v2 = ((x + b) >> i); + if (y > 0) { + xtemp = x + v1; + y = y - v2; + x = xtemp; + theta += *arctanptr++; + } else { + xtemp = x - v1; + y = y + v2; + x = xtemp; + theta -= *arctanptr++; + } + } + + /* round theta */ + if (theta >= 0) + theta = SW_FT_PAD_ROUND(theta, 32); + else + theta = -SW_FT_PAD_ROUND(-theta, 32); + + vec->x = x; + vec->y = theta; +} + +/* documentation is in fttrigon.h */ + +SW_FT_Fixed SW_FT_Cos(SW_FT_Angle angle) +{ + SW_FT_Vector v; + + v.x = SW_FT_TRIG_SCALE >> 8; + v.y = 0; + ft_trig_pseudo_rotate(&v, angle); + + return (v.x + 0x80L) >> 8; +} + +/* documentation is in fttrigon.h */ + +SW_FT_Fixed SW_FT_Sin(SW_FT_Angle angle) +{ + return SW_FT_Cos(SW_FT_ANGLE_PI2 - angle); +} + +/* documentation is in fttrigon.h */ + +SW_FT_Fixed SW_FT_Tan(SW_FT_Angle angle) +{ + SW_FT_Vector v; + + v.x = SW_FT_TRIG_SCALE >> 8; + v.y = 0; + ft_trig_pseudo_rotate(&v, angle); + + return SW_FT_DivFix(v.y, v.x); +} + +/* documentation is in fttrigon.h */ + +SW_FT_Angle SW_FT_Atan2(SW_FT_Fixed dx, SW_FT_Fixed dy) +{ + SW_FT_Vector v; + + if (dx == 0 && dy == 0) return 0; + + v.x = dx; + v.y = dy; + ft_trig_prenorm(&v); + ft_trig_pseudo_polarize(&v); + + return v.y; +} + +/* documentation is in fttrigon.h */ + +void SW_FT_Vector_Unit(SW_FT_Vector* vec, SW_FT_Angle angle) +{ + vec->x = SW_FT_TRIG_SCALE >> 8; + vec->y = 0; + ft_trig_pseudo_rotate(vec, angle); + vec->x = (vec->x + 0x80L) >> 8; + vec->y = (vec->y + 0x80L) >> 8; +} + +/* these macros return 0 for positive numbers, + and -1 for negative ones */ +#define SW_FT_SIGN_LONG(x) ((x) >> (SW_FT_SIZEOF_LONG * 8 - 1)) +#define SW_FT_SIGN_INT(x) ((x) >> (SW_FT_SIZEOF_INT * 8 - 1)) +#define SW_FT_SIGN_INT32(x) ((x) >> 31) +#define SW_FT_SIGN_INT16(x) ((x) >> 15) + +/* documentation is in fttrigon.h */ + +void SW_FT_Vector_Rotate(SW_FT_Vector* vec, SW_FT_Angle angle) +{ + SW_FT_Int shift; + SW_FT_Vector v; + + v.x = vec->x; + v.y = vec->y; + + if (angle && (v.x != 0 || v.y != 0)) { + shift = ft_trig_prenorm(&v); + ft_trig_pseudo_rotate(&v, angle); + v.x = ft_trig_downscale(v.x); + v.y = ft_trig_downscale(v.y); + + if (shift > 0) { + SW_FT_Int32 half = (SW_FT_Int32)1L << (shift - 1); + + vec->x = (v.x + half + SW_FT_SIGN_LONG(v.x)) >> shift; + vec->y = (v.y + half + SW_FT_SIGN_LONG(v.y)) >> shift; + } else { + shift = -shift; + vec->x = (SW_FT_Pos)((SW_FT_ULong)v.x << shift); + vec->y = (SW_FT_Pos)((SW_FT_ULong)v.y << shift); + } + } +} + +/* documentation is in fttrigon.h */ + +SW_FT_Fixed SW_FT_Vector_Length(SW_FT_Vector* vec) +{ + SW_FT_Int shift; + SW_FT_Vector v; + + v = *vec; + + /* handle trivial cases */ + if (v.x == 0) { + return SW_FT_ABS(v.y); + } else if (v.y == 0) { + return SW_FT_ABS(v.x); + } + + /* general case */ + shift = ft_trig_prenorm(&v); + ft_trig_pseudo_polarize(&v); + + v.x = ft_trig_downscale(v.x); + + if (shift > 0) return (v.x + (1 << (shift - 1))) >> shift; + + return (SW_FT_Fixed)((SW_FT_UInt32)v.x << -shift); +} + +/* documentation is in fttrigon.h */ + +void SW_FT_Vector_Polarize(SW_FT_Vector* vec, SW_FT_Fixed* length, + SW_FT_Angle* angle) +{ + SW_FT_Int shift; + SW_FT_Vector v; + + v = *vec; + + if (v.x == 0 && v.y == 0) return; + + shift = ft_trig_prenorm(&v); + ft_trig_pseudo_polarize(&v); + + v.x = ft_trig_downscale(v.x); + + *length = (shift >= 0) ? (v.x >> shift) + : (SW_FT_Fixed)((SW_FT_UInt32)v.x << -shift); + *angle = v.y; +} + +/* documentation is in fttrigon.h */ + +void SW_FT_Vector_From_Polar(SW_FT_Vector* vec, SW_FT_Fixed length, + SW_FT_Angle angle) +{ + vec->x = length; + vec->y = 0; + + SW_FT_Vector_Rotate(vec, angle); +} + +/* documentation is in fttrigon.h */ + +SW_FT_Angle SW_FT_Angle_Diff( SW_FT_Angle angle1, SW_FT_Angle angle2 ) +{ + SW_FT_Angle delta = angle2 - angle1; + + while ( delta <= -SW_FT_ANGLE_PI ) + delta += SW_FT_ANGLE_2PI; + + while ( delta > SW_FT_ANGLE_PI ) + delta -= SW_FT_ANGLE_2PI; + + return delta; +} + +/* END */ diff --git a/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_math.h b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_math.h new file mode 100644 index 00000000..0405c05b --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_math.h @@ -0,0 +1,438 @@ +#ifndef V_FT_MATH_H +#define V_FT_MATH_H + +/***************************************************************************/ +/* */ +/* fttrigon.h */ +/* */ +/* FreeType trigonometric functions (specification). */ +/* */ +/* Copyright 2001, 2003, 2005, 2007, 2013 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include "vector_freetype_v_ft_types.h" + + +/*************************************************************************/ +/* */ +/* The min and max functions missing in C. As usual, be careful not to */ +/* write things like SW_FT_MIN( a++, b++ ) to avoid side effects. */ +/* */ +#define SW_FT_MIN( a, b ) ( (a) < (b) ? (a) : (b) ) +#define SW_FT_MAX( a, b ) ( (a) > (b) ? (a) : (b) ) + +#define SW_FT_ABS( a ) ( (a) < 0 ? -(a) : (a) ) + +/* + * Approximate sqrt(x*x+y*y) using the `alpha max plus beta min' + * algorithm. We use alpha = 1, beta = 3/8, giving us results with a + * largest error less than 7% compared to the exact value. + */ +#define SW_FT_HYPOT( x, y ) \ + ( x = SW_FT_ABS( x ), \ + y = SW_FT_ABS( y ), \ + x > y ? x + ( 3 * y >> 3 ) \ + : y + ( 3 * x >> 3 ) ) + +/*************************************************************************/ +/* */ +/* <Function> */ +/* SW_FT_MulFix */ +/* */ +/* <Description> */ +/* A very simple function used to perform the computation */ +/* `(a*b)/0x10000' with maximum accuracy. Most of the time this is */ +/* used to multiply a given value by a 16.16 fixed-point factor. */ +/* */ +/* <Input> */ +/* a :: The first multiplier. */ +/* b :: The second multiplier. Use a 16.16 factor here whenever */ +/* possible (see note below). */ +/* */ +/* <Return> */ +/* The result of `(a*b)/0x10000'. */ +/* */ +/* <Note> */ +/* This function has been optimized for the case where the absolute */ +/* value of `a' is less than 2048, and `b' is a 16.16 scaling factor. */ +/* As this happens mainly when scaling from notional units to */ +/* fractional pixels in FreeType, it resulted in noticeable speed */ +/* improvements between versions 2.x and 1.x. */ +/* */ +/* As a conclusion, always try to place a 16.16 factor as the */ +/* _second_ argument of this function; this can make a great */ +/* difference. */ +/* */ +SW_FT_Long +SW_FT_MulFix( SW_FT_Long a, + SW_FT_Long b ); + +/*************************************************************************/ +/* */ +/* <Function> */ +/* SW_FT_MulDiv */ +/* */ +/* <Description> */ +/* A very simple function used to perform the computation `(a*b)/c' */ +/* with maximum accuracy (it uses a 64-bit intermediate integer */ +/* whenever necessary). */ +/* */ +/* This function isn't necessarily as fast as some processor specific */ +/* operations, but is at least completely portable. */ +/* */ +/* <Input> */ +/* a :: The first multiplier. */ +/* b :: The second multiplier. */ +/* c :: The divisor. */ +/* */ +/* <Return> */ +/* The result of `(a*b)/c'. This function never traps when trying to */ +/* divide by zero; it simply returns `MaxInt' or `MinInt' depending */ +/* on the signs of `a' and `b'. */ +/* */ +SW_FT_Long +SW_FT_MulDiv( SW_FT_Long a, + SW_FT_Long b, + SW_FT_Long c ); + +/*************************************************************************/ +/* */ +/* <Function> */ +/* SW_FT_DivFix */ +/* */ +/* <Description> */ +/* A very simple function used to perform the computation */ +/* `(a*0x10000)/b' with maximum accuracy. Most of the time, this is */ +/* used to divide a given value by a 16.16 fixed-point factor. */ +/* */ +/* <Input> */ +/* a :: The numerator. */ +/* b :: The denominator. Use a 16.16 factor here. */ +/* */ +/* <Return> */ +/* The result of `(a*0x10000)/b'. */ +/* */ +SW_FT_Long +SW_FT_DivFix( SW_FT_Long a, + SW_FT_Long b ); + + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* computations */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @type: + * SW_FT_Angle + * + * @description: + * This type is used to model angle values in FreeType. Note that the + * angle is a 16.16 fixed-point value expressed in degrees. + * + */ + typedef SW_FT_Fixed SW_FT_Angle; + + + /************************************************************************* + * + * @macro: + * SW_FT_ANGLE_PI + * + * @description: + * The angle pi expressed in @SW_FT_Angle units. + * + */ +#define SW_FT_ANGLE_PI ( 180L << 16 ) + + + /************************************************************************* + * + * @macro: + * SW_FT_ANGLE_2PI + * + * @description: + * The angle 2*pi expressed in @SW_FT_Angle units. + * + */ +#define SW_FT_ANGLE_2PI ( SW_FT_ANGLE_PI * 2 ) + + + /************************************************************************* + * + * @macro: + * SW_FT_ANGLE_PI2 + * + * @description: + * The angle pi/2 expressed in @SW_FT_Angle units. + * + */ +#define SW_FT_ANGLE_PI2 ( SW_FT_ANGLE_PI / 2 ) + + + /************************************************************************* + * + * @macro: + * SW_FT_ANGLE_PI4 + * + * @description: + * The angle pi/4 expressed in @SW_FT_Angle units. + * + */ +#define SW_FT_ANGLE_PI4 ( SW_FT_ANGLE_PI / 4 ) + + + /************************************************************************* + * + * @function: + * SW_FT_Sin + * + * @description: + * Return the sinus of a given angle in fixed-point format. + * + * @input: + * angle :: + * The input angle. + * + * @return: + * The sinus value. + * + * @note: + * If you need both the sinus and cosinus for a given angle, use the + * function @SW_FT_Vector_Unit. + * + */ + SW_FT_Fixed + SW_FT_Sin( SW_FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * SW_FT_Cos + * + * @description: + * Return the cosinus of a given angle in fixed-point format. + * + * @input: + * angle :: + * The input angle. + * + * @return: + * The cosinus value. + * + * @note: + * If you need both the sinus and cosinus for a given angle, use the + * function @SW_FT_Vector_Unit. + * + */ + SW_FT_Fixed + SW_FT_Cos( SW_FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * SW_FT_Tan + * + * @description: + * Return the tangent of a given angle in fixed-point format. + * + * @input: + * angle :: + * The input angle. + * + * @return: + * The tangent value. + * + */ + SW_FT_Fixed + SW_FT_Tan( SW_FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * SW_FT_Atan2 + * + * @description: + * Return the arc-tangent corresponding to a given vector (x,y) in + * the 2d plane. + * + * @input: + * x :: + * The horizontal vector coordinate. + * + * y :: + * The vertical vector coordinate. + * + * @return: + * The arc-tangent value (i.e. angle). + * + */ + SW_FT_Angle + SW_FT_Atan2( SW_FT_Fixed x, + SW_FT_Fixed y ); + + + /************************************************************************* + * + * @function: + * SW_FT_Angle_Diff + * + * @description: + * Return the difference between two angles. The result is always + * constrained to the ]-PI..PI] interval. + * + * @input: + * angle1 :: + * First angle. + * + * angle2 :: + * Second angle. + * + * @return: + * Constrained value of `value2-value1'. + * + */ + SW_FT_Angle + SW_FT_Angle_Diff( SW_FT_Angle angle1, + SW_FT_Angle angle2 ); + + + /************************************************************************* + * + * @function: + * SW_FT_Vector_Unit + * + * @description: + * Return the unit vector corresponding to a given angle. After the + * call, the value of `vec.x' will be `sin(angle)', and the value of + * `vec.y' will be `cos(angle)'. + * + * This function is useful to retrieve both the sinus and cosinus of a + * given angle quickly. + * + * @output: + * vec :: + * The address of target vector. + * + * @input: + * angle :: + * The input angle. + * + */ + void + SW_FT_Vector_Unit( SW_FT_Vector* vec, + SW_FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * SW_FT_Vector_Rotate + * + * @description: + * Rotate a vector by a given angle. + * + * @inout: + * vec :: + * The address of target vector. + * + * @input: + * angle :: + * The input angle. + * + */ + void + SW_FT_Vector_Rotate( SW_FT_Vector* vec, + SW_FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * SW_FT_Vector_Length + * + * @description: + * Return the length of a given vector. + * + * @input: + * vec :: + * The address of target vector. + * + * @return: + * The vector length, expressed in the same units that the original + * vector coordinates. + * + */ + SW_FT_Fixed + SW_FT_Vector_Length( SW_FT_Vector* vec ); + + + /************************************************************************* + * + * @function: + * SW_FT_Vector_Polarize + * + * @description: + * Compute both the length and angle of a given vector. + * + * @input: + * vec :: + * The address of source vector. + * + * @output: + * length :: + * The vector length. + * + * angle :: + * The vector angle. + * + */ + void + SW_FT_Vector_Polarize( SW_FT_Vector* vec, + SW_FT_Fixed *length, + SW_FT_Angle *angle ); + + + /************************************************************************* + * + * @function: + * SW_FT_Vector_From_Polar + * + * @description: + * Compute vector coordinates from a length and angle. + * + * @output: + * vec :: + * The address of source vector. + * + * @input: + * length :: + * The vector length. + * + * angle :: + * The vector angle. + * + */ + void + SW_FT_Vector_From_Polar( SW_FT_Vector* vec, + SW_FT_Fixed length, + SW_FT_Angle angle ); + + +#endif // V_FT_MATH_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_raster.cpp b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_raster.cpp new file mode 100644 index 00000000..01f2f23b --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_raster.cpp @@ -0,0 +1,1423 @@ +/***************************************************************************/ +/* */ +/* ftgrays.c */ +/* */ +/* A new `perfect' anti-aliasing renderer (body). */ +/* */ +/* Copyright 2000-2003, 2005-2014 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/*************************************************************************/ +/* */ +/* This is a new anti-aliasing scan-converter for FreeType 2. The */ +/* algorithm used here is _very_ different from the one in the standard */ +/* `ftraster' module. Actually, `ftgrays' computes the _exact_ */ +/* coverage of the outline on each pixel cell. */ +/* */ +/* It is based on ideas that I initially found in Raph Levien's */ +/* excellent LibArt graphics library (see http://www.levien.com/libart */ +/* for more information, though the web pages do not tell anything */ +/* about the renderer; you'll have to dive into the source code to */ +/* understand how it works). */ +/* */ +/* Note, however, that this is a _very_ different implementation */ +/* compared to Raph's. Coverage information is stored in a very */ +/* different way, and I don't use sorted vector paths. Also, it doesn't */ +/* use floating point values. */ +/* */ +/* This renderer has the following advantages: */ +/* */ +/* - It doesn't need an intermediate bitmap. Instead, one can supply a */ +/* callback function that will be called by the renderer to draw gray */ +/* spans on any target surface. You can thus do direct composition on */ +/* any kind of bitmap, provided that you give the renderer the right */ +/* callback. */ +/* */ +/* - A perfect anti-aliaser, i.e., it computes the _exact_ coverage on */ +/* each pixel cell. */ +/* */ +/* - It performs a single pass on the outline (the `standard' FT2 */ +/* renderer makes two passes). */ +/* */ +/* - It can easily be modified to render to _any_ number of gray levels */ +/* cheaply. */ +/* */ +/* - For small (< 20) pixel sizes, it is faster than the standard */ +/* renderer. */ +/* */ +/*************************************************************************/ + +#include "vector_freetype_v_ft_raster.h" +#include "vector_freetype_v_ft_math.h" + +/* Auxiliary macros for token concatenation. */ +#define SW_FT_ERR_XCAT(x, y) x##y +#define SW_FT_ERR_CAT(x, y) SW_FT_ERR_XCAT(x, y) + +#define SW_FT_BEGIN_STMNT do { +#define SW_FT_END_STMNT \ + } \ + while (0) + +#include <limits.h> +#include <setjmp.h> +#include <stddef.h> +#include <string.h> +#define SW_FT_UINT_MAX UINT_MAX +#define SW_FT_INT_MAX INT_MAX +#define SW_FT_ULONG_MAX ULONG_MAX +#define SW_FT_CHAR_BIT CHAR_BIT + +#define ft_memset memset + +#define ft_setjmp setjmp +#define ft_longjmp longjmp +#define ft_jmp_buf jmp_buf + +typedef ptrdiff_t SW_FT_PtrDist; + +#define ErrRaster_Invalid_Mode -2 +#define ErrRaster_Invalid_Outline -1 +#define ErrRaster_Invalid_Argument -3 +#define ErrRaster_Memory_Overflow -4 + +#define SW_FT_BEGIN_HEADER +#define SW_FT_END_HEADER + +/* This macro is used to indicate that a function parameter is unused. */ +/* Its purpose is simply to reduce compiler warnings. Note also that */ +/* simply defining it as `(void)x' doesn't avoid warnings with certain */ +/* ANSI compilers (e.g. LCC). */ +#define SW_FT_UNUSED(x) (x) = (x) + +#define SW_FT_THROW(e) SW_FT_ERR_CAT(ErrRaster_, e) + +/* The size in bytes of the render pool used by the scan-line converter */ +/* to do all of its work. */ +#define SW_FT_RENDER_POOL_SIZE 16384L + +typedef int (*SW_FT_Outline_MoveToFunc)(const SW_FT_Vector* to, void* user); + +#define SW_FT_Outline_MoveTo_Func SW_FT_Outline_MoveToFunc + +typedef int (*SW_FT_Outline_LineToFunc)(const SW_FT_Vector* to, void* user); + +#define SW_FT_Outline_LineTo_Func SW_FT_Outline_LineToFunc + +typedef int (*SW_FT_Outline_ConicToFunc)(const SW_FT_Vector* control, + const SW_FT_Vector* to, void* user); + +#define SW_FT_Outline_ConicTo_Func SW_FT_Outline_ConicToFunc + +typedef int (*SW_FT_Outline_CubicToFunc)(const SW_FT_Vector* control1, + const SW_FT_Vector* control2, + const SW_FT_Vector* to, void* user); + +#define SW_FT_Outline_CubicTo_Func SW_FT_Outline_CubicToFunc + +typedef struct SW_FT_Outline_Funcs_ { + SW_FT_Outline_MoveToFunc move_to; + SW_FT_Outline_LineToFunc line_to; + SW_FT_Outline_ConicToFunc conic_to; + SW_FT_Outline_CubicToFunc cubic_to; + + int shift; + SW_FT_Pos delta; + +} SW_FT_Outline_Funcs; + +#define SW_FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \ + cubic_to_, shift_, delta_) \ + static const SW_FT_Outline_Funcs class_ = {move_to_, line_to_, conic_to_, \ + cubic_to_, shift_, delta_}; + +#define SW_FT_DEFINE_RASTER_FUNCS(class_, raster_new_, raster_reset_, \ + raster_render_, raster_done_) \ + const SW_FT_Raster_Funcs class_ = {raster_new_, raster_reset_, \ + raster_render_, raster_done_}; + +#ifndef SW_FT_MEM_SET +#define SW_FT_MEM_SET(d, s, c) ft_memset(d, s, c) +#endif + +#ifndef SW_FT_MEM_ZERO +#define SW_FT_MEM_ZERO(dest, count) SW_FT_MEM_SET(dest, 0, count) +#endif + +/* as usual, for the speed hungry :-) */ + +#undef RAS_ARG +#undef RAS_ARG_ +#undef RAS_VAR +#undef RAS_VAR_ + +#ifndef SW_FT_STATIC_RASTER + +#define RAS_ARG gray_PWorker worker +#define RAS_ARG_ gray_PWorker worker, + +#define RAS_VAR worker +#define RAS_VAR_ worker, + +#else /* SW_FT_STATIC_RASTER */ + +#define RAS_ARG /* empty */ +#define RAS_ARG_ /* empty */ +#define RAS_VAR /* empty */ +#define RAS_VAR_ /* empty */ + +#endif /* SW_FT_STATIC_RASTER */ + +/* must be at least 6 bits! */ +#define PIXEL_BITS 8 + +#undef FLOOR +#undef CEILING +#undef TRUNC +#undef SCALED + +#define ONE_PIXEL (1L << PIXEL_BITS) +#define PIXEL_MASK (-1L << PIXEL_BITS) +#define TRUNC(x) ((TCoord)((x) >> PIXEL_BITS)) +#define SUBPIXELS(x) ((TPos)(x) << PIXEL_BITS) +#define FLOOR(x) ((x) & -ONE_PIXEL) +#define CEILING(x) (((x) + ONE_PIXEL - 1) & -ONE_PIXEL) +#define ROUND(x) (((x) + ONE_PIXEL / 2) & -ONE_PIXEL) + +#if PIXEL_BITS >= 6 +#define UPSCALE(x) ((x) << (PIXEL_BITS - 6)) +#define DOWNSCALE(x) ((x) >> (PIXEL_BITS - 6)) +#else +#define UPSCALE(x) ((x) >> (6 - PIXEL_BITS)) +#define DOWNSCALE(x) ((x) << (6 - PIXEL_BITS)) +#endif + +/* Compute `dividend / divisor' and return both its quotient and */ +/* remainder, cast to a specific type. This macro also ensures that */ +/* the remainder is always positive. */ +#define SW_FT_DIV_MOD(type, dividend, divisor, quotient, remainder) \ + SW_FT_BEGIN_STMNT(quotient) = (type)((dividend) / (divisor)); \ + (remainder) = (type)((dividend) % (divisor)); \ + if ((remainder) < 0) { \ + (quotient)--; \ + (remainder) += (type)(divisor); \ + } \ + SW_FT_END_STMNT + +#ifdef __arm__ +/* Work around a bug specific to GCC which make the compiler fail to */ +/* optimize a division and modulo operation on the same parameters */ +/* into a single call to `__aeabi_idivmod'. See */ +/* */ +/* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43721 */ +#undef SW_FT_DIV_MOD +#define SW_FT_DIV_MOD(type, dividend, divisor, quotient, remainder) \ + SW_FT_BEGIN_STMNT(quotient) = (type)((dividend) / (divisor)); \ + (remainder) = (type)((dividend) - (quotient) * (divisor)); \ + if ((remainder) < 0) { \ + (quotient)--; \ + (remainder) += (type)(divisor); \ + } \ + SW_FT_END_STMNT +#endif /* __arm__ */ + +/* These macros speed up repetitive divisions by replacing them */ +/* with multiplications and right shifts. */ +#define SW_FT_UDIVPREP(b) \ + long b##_r = (long)(SW_FT_ULONG_MAX >> PIXEL_BITS) / (b) +#define SW_FT_UDIV(a, b) \ + (((unsigned long)(a) * (unsigned long)(b##_r)) >> \ + (sizeof(long) * SW_FT_CHAR_BIT - PIXEL_BITS)) + +/*************************************************************************/ +/* */ +/* TYPE DEFINITIONS */ +/* */ + +/* don't change the following types to SW_FT_Int or SW_FT_Pos, since we might */ +/* need to define them to "float" or "double" when experimenting with */ +/* new algorithms */ + +typedef long TCoord; /* integer scanline/pixel coordinate */ +typedef long TPos; /* sub-pixel coordinate */ + +/* determine the type used to store cell areas. This normally takes at */ +/* least PIXEL_BITS*2 + 1 bits. On 16-bit systems, we need to use */ +/* `long' instead of `int', otherwise bad things happen */ + +#if PIXEL_BITS <= 7 + +typedef int TArea; + +#else /* PIXEL_BITS >= 8 */ + +/* approximately determine the size of integers using an ANSI-C header */ +#if SW_FT_UINT_MAX == 0xFFFFU +typedef long TArea; +#else +typedef int TArea; +#endif + +#endif /* PIXEL_BITS >= 8 */ + +/* maximum number of gray spans in a call to the span callback */ +#define SW_FT_MAX_GRAY_SPANS 256 + +typedef struct TCell_* PCell; + +typedef struct TCell_ { + TPos x; /* same with gray_TWorker.ex */ + TCoord cover; /* same with gray_TWorker.cover */ + TArea area; + PCell next; + +} TCell; + +#if defined(_MSC_VER) /* Visual C++ (and Intel C++) */ +/* We disable the warning `structure was padded due to */ +/* __declspec(align())' in order to compile cleanly with */ +/* the maximum level of warnings. */ +#pragma warning(push) +#pragma warning(disable : 4324) +#endif /* _MSC_VER */ + +typedef struct gray_TWorker_ { + TCoord ex, ey; + TPos min_ex, max_ex; + TPos min_ey, max_ey; + TPos count_ex, count_ey; + + TArea area; + TCoord cover; + int invalid; + + PCell cells; + SW_FT_PtrDist max_cells; + SW_FT_PtrDist num_cells; + + TPos x, y; + + SW_FT_Vector bez_stack[32 * 3 + 1]; + int lev_stack[32]; + + SW_FT_Outline outline; + SW_FT_BBox clip_box; + + int bound_left; + int bound_top; + int bound_right; + int bound_bottom; + + SW_FT_Span gray_spans[SW_FT_MAX_GRAY_SPANS]; + int num_gray_spans; + + SW_FT_Raster_Span_Func render_span; + void* render_span_data; + + int band_size; + int band_shoot; + + ft_jmp_buf jump_buffer; + + void* buffer; + long buffer_size; + + PCell* ycells; + TPos ycount; + +} gray_TWorker, *gray_PWorker; + +#if defined(_MSC_VER) +#pragma warning(pop) +#endif + +#ifndef SW_FT_STATIC_RASTER +#define ras (*worker) +#else +static gray_TWorker ras; +#endif + +typedef struct gray_TRaster_ { + void* memory; + +} gray_TRaster, *gray_PRaster; + +/*************************************************************************/ +/* */ +/* Initialize the cells table. */ +/* */ +static void gray_init_cells(RAS_ARG_ void* buffer, long byte_size) +{ + ras.buffer = buffer; + ras.buffer_size = byte_size; + + ras.ycells = (PCell*)buffer; + ras.cells = NULL; + ras.max_cells = 0; + ras.num_cells = 0; + ras.area = 0; + ras.cover = 0; + ras.invalid = 1; + + ras.bound_left = INT_MAX; + ras.bound_top = INT_MAX; + ras.bound_right = INT_MIN; + ras.bound_bottom = INT_MIN; +} + +/*************************************************************************/ +/* */ +/* Compute the outline bounding box. */ +/* */ +static void gray_compute_cbox(RAS_ARG) +{ + SW_FT_Outline* outline = &ras.outline; + SW_FT_Vector* vec = outline->points; + SW_FT_Vector* limit = vec + outline->n_points; + + if (outline->n_points <= 0) { + ras.min_ex = ras.max_ex = 0; + ras.min_ey = ras.max_ey = 0; + return; + } + + ras.min_ex = ras.max_ex = vec->x; + ras.min_ey = ras.max_ey = vec->y; + + vec++; + + for (; vec < limit; vec++) { + TPos x = vec->x; + TPos y = vec->y; + + if (x < ras.min_ex) ras.min_ex = x; + if (x > ras.max_ex) ras.max_ex = x; + if (y < ras.min_ey) ras.min_ey = y; + if (y > ras.max_ey) ras.max_ey = y; + } + + /* truncate the bounding box to integer pixels */ + ras.min_ex = ras.min_ex >> 6; + ras.min_ey = ras.min_ey >> 6; + ras.max_ex = (ras.max_ex + 63) >> 6; + ras.max_ey = (ras.max_ey + 63) >> 6; +} + +/*************************************************************************/ +/* */ +/* Record the current cell in the table. */ +/* */ +static PCell gray_find_cell(RAS_ARG) +{ + PCell *pcell, cell; + TPos x = ras.ex; + + if (x > ras.count_ex) x = ras.count_ex; + + pcell = &ras.ycells[ras.ey]; + for (;;) { + cell = *pcell; + if (cell == NULL || cell->x > x) break; + + if (cell->x == x) goto Exit; + + pcell = &cell->next; + } + + if (ras.num_cells >= ras.max_cells) ft_longjmp(ras.jump_buffer, 1); + + cell = ras.cells + ras.num_cells++; + cell->x = x; + cell->area = 0; + cell->cover = 0; + + cell->next = *pcell; + *pcell = cell; + +Exit: + return cell; +} + +static void gray_record_cell(RAS_ARG) +{ + if (ras.area | ras.cover) { + PCell cell = gray_find_cell(RAS_VAR); + + cell->area += ras.area; + cell->cover += ras.cover; + } +} + +/*************************************************************************/ +/* */ +/* Set the current cell to a new position. */ +/* */ +static void gray_set_cell(RAS_ARG_ TCoord ex, TCoord ey) +{ + /* Move the cell pointer to a new position. We set the `invalid' */ + /* flag to indicate that the cell isn't part of those we're interested */ + /* in during the render phase. This means that: */ + /* */ + /* . the new vertical position must be within min_ey..max_ey-1. */ + /* . the new horizontal position must be strictly less than max_ex */ + /* */ + /* Note that if a cell is to the left of the clipping region, it is */ + /* actually set to the (min_ex-1) horizontal position. */ + + /* All cells that are on the left of the clipping region go to the */ + /* min_ex - 1 horizontal position. */ + ey -= ras.min_ey; + + if (ex > ras.max_ex) ex = ras.max_ex; + + ex -= ras.min_ex; + if (ex < 0) ex = -1; + + /* are we moving to a different cell ? */ + if (ex != ras.ex || ey != ras.ey) { + /* record the current one if it is valid */ + if (!ras.invalid) gray_record_cell(RAS_VAR); + + ras.area = 0; + ras.cover = 0; + ras.ex = ex; + ras.ey = ey; + } + + ras.invalid = + ((unsigned)ey >= (unsigned)ras.count_ey || ex >= ras.count_ex); +} + +/*************************************************************************/ +/* */ +/* Start a new contour at a given cell. */ +/* */ +static void gray_start_cell(RAS_ARG_ TCoord ex, TCoord ey) +{ + if (ex > ras.max_ex) ex = (TCoord)(ras.max_ex); + + if (ex < ras.min_ex) ex = (TCoord)(ras.min_ex - 1); + + ras.area = 0; + ras.cover = 0; + ras.ex = ex - ras.min_ex; + ras.ey = ey - ras.min_ey; + ras.invalid = 0; + + gray_set_cell(RAS_VAR_ ex, ey); +} + +/*************************************************************************/ +/* */ +/* Render a straight line across multiple cells in any direction. */ +/* */ +static void gray_render_line(RAS_ARG_ TPos to_x, TPos to_y) +{ + TPos dx, dy, fx1, fy1, fx2, fy2; + TCoord ex1, ex2, ey1, ey2; + + ex1 = TRUNC(ras.x); + ex2 = TRUNC(to_x); + ey1 = TRUNC(ras.y); + ey2 = TRUNC(to_y); + + /* perform vertical clipping */ + if ((ey1 >= ras.max_ey && ey2 >= ras.max_ey) || + (ey1 < ras.min_ey && ey2 < ras.min_ey)) + goto End; + + dx = to_x - ras.x; + dy = to_y - ras.y; + + fx1 = ras.x - SUBPIXELS(ex1); + fy1 = ras.y - SUBPIXELS(ey1); + + if (ex1 == ex2 && ey1 == ey2) /* inside one cell */ + ; + else if (dy == 0) /* ex1 != ex2 */ /* any horizontal line */ + { + ex1 = ex2; + gray_set_cell(RAS_VAR_ ex1, ey1); + } else if (dx == 0) { + if (dy > 0) /* vertical line up */ + do { + fy2 = ONE_PIXEL; + ras.cover += (fy2 - fy1); + ras.area += (fy2 - fy1) * fx1 * 2; + fy1 = 0; + ey1++; + gray_set_cell(RAS_VAR_ ex1, ey1); + } while (ey1 != ey2); + else /* vertical line down */ + do { + fy2 = 0; + ras.cover += (fy2 - fy1); + ras.area += (fy2 - fy1) * fx1 * 2; + fy1 = ONE_PIXEL; + ey1--; + gray_set_cell(RAS_VAR_ ex1, ey1); + } while (ey1 != ey2); + } else /* any other line */ + { + TArea prod = dx * fy1 - dy * fx1; + SW_FT_UDIVPREP(dx); + SW_FT_UDIVPREP(dy); + + /* The fundamental value `prod' determines which side and the */ + /* exact coordinate where the line exits current cell. It is */ + /* also easily updated when moving from one cell to the next. */ + do { + if (prod <= 0 && prod - dx * ONE_PIXEL > 0) /* left */ + { + fx2 = 0; + fy2 = (TPos)SW_FT_UDIV(-prod, -dx); + prod -= dy * ONE_PIXEL; + ras.cover += (fy2 - fy1); + ras.area += (fy2 - fy1) * (fx1 + fx2); + fx1 = ONE_PIXEL; + fy1 = fy2; + ex1--; + } else if (prod - dx * ONE_PIXEL <= 0 && + prod - dx * ONE_PIXEL + dy * ONE_PIXEL > 0) /* up */ + { + prod -= dx * ONE_PIXEL; + fx2 = (TPos)SW_FT_UDIV(-prod, dy); + fy2 = ONE_PIXEL; + ras.cover += (fy2 - fy1); + ras.area += (fy2 - fy1) * (fx1 + fx2); + fx1 = fx2; + fy1 = 0; + ey1++; + } else if (prod - dx * ONE_PIXEL + dy * ONE_PIXEL <= 0 && + prod + dy * ONE_PIXEL >= 0) /* right */ + { + prod += dy * ONE_PIXEL; + fx2 = ONE_PIXEL; + fy2 = (TPos)SW_FT_UDIV(prod, dx); + ras.cover += (fy2 - fy1); + ras.area += (fy2 - fy1) * (fx1 + fx2); + fx1 = 0; + fy1 = fy2; + ex1++; + } else /* ( prod + dy * ONE_PIXEL < 0 && + prod > 0 ) down */ + { + fx2 = (TPos)SW_FT_UDIV(prod, -dy); + fy2 = 0; + prod += dx * ONE_PIXEL; + ras.cover += (fy2 - fy1); + ras.area += (fy2 - fy1) * (fx1 + fx2); + fx1 = fx2; + fy1 = ONE_PIXEL; + ey1--; + } + + gray_set_cell(RAS_VAR_ ex1, ey1); + } while (ex1 != ex2 || ey1 != ey2); + } + + fx2 = to_x - SUBPIXELS(ex2); + fy2 = to_y - SUBPIXELS(ey2); + + ras.cover += (fy2 - fy1); + ras.area += (fy2 - fy1) * (fx1 + fx2); + +End: + ras.x = to_x; + ras.y = to_y; +} + +static void gray_split_conic(SW_FT_Vector* base) +{ + TPos a, b; + + base[4].x = base[2].x; + a = base[0].x + base[1].x; + b = base[1].x + base[2].x; + base[3].x = b >> 1; + base[2].x = ( a + b ) >> 2; + base[1].x = a >> 1; + + base[4].y = base[2].y; + a = base[0].y + base[1].y; + b = base[1].y + base[2].y; + base[3].y = b >> 1; + base[2].y = ( a + b ) >> 2; + base[1].y = a >> 1; +} + +static void gray_render_conic(RAS_ARG_ const SW_FT_Vector* control, + const SW_FT_Vector* to) +{ + TPos dx, dy; + TPos min, max, y; + int top, level; + int* levels; + SW_FT_Vector* arc; + + levels = ras.lev_stack; + + arc = ras.bez_stack; + arc[0].x = UPSCALE(to->x); + arc[0].y = UPSCALE(to->y); + arc[1].x = UPSCALE(control->x); + arc[1].y = UPSCALE(control->y); + arc[2].x = ras.x; + arc[2].y = ras.y; + top = 0; + + dx = SW_FT_ABS(arc[2].x + arc[0].x - 2 * arc[1].x); + dy = SW_FT_ABS(arc[2].y + arc[0].y - 2 * arc[1].y); + if (dx < dy) dx = dy; + + if (dx < ONE_PIXEL / 4) goto Draw; + + /* short-cut the arc that crosses the current band */ + min = max = arc[0].y; + + y = arc[1].y; + if (y < min) min = y; + if (y > max) max = y; + + y = arc[2].y; + if (y < min) min = y; + if (y > max) max = y; + + if (TRUNC(min) >= ras.max_ey || TRUNC(max) < ras.min_ey) goto Draw; + + level = 0; + do { + dx >>= 2; + level++; + } while (dx > ONE_PIXEL / 4); + + levels[0] = level; + + do { + level = levels[top]; + if (level > 0) { + gray_split_conic(arc); + arc += 2; + top++; + levels[top] = levels[top - 1] = level - 1; + continue; + } + + Draw: + gray_render_line(RAS_VAR_ arc[0].x, arc[0].y); + top--; + arc -= 2; + + } while (top >= 0); +} + +static void gray_split_cubic(SW_FT_Vector* base) +{ + TPos a, b, c; + + + base[6].x = base[3].x; + a = base[0].x + base[1].x; + b = base[1].x + base[2].x; + c = base[2].x + base[3].x; + base[5].x = c >> 1; + c += b; + base[4].x = c >> 2; + base[1].x = a >> 1; + a += b; + base[2].x = a >> 2; + base[3].x = ( a + c ) >> 3; + + base[6].y = base[3].y; + a = base[0].y + base[1].y; + b = base[1].y + base[2].y; + c = base[2].y + base[3].y; + base[5].y = c >> 1; + c += b; + base[4].y = c >> 2; + base[1].y = a >> 1; + a += b; + base[2].y = a >> 2; + base[3].y = ( a + c ) >> 3; +} + + +static void +gray_render_cubic(RAS_ARG_ const SW_FT_Vector* control1, + const SW_FT_Vector* control2, + const SW_FT_Vector* to) +{ + SW_FT_Vector* arc = ras.bez_stack; + + arc[0].x = UPSCALE( to->x ); + arc[0].y = UPSCALE( to->y ); + arc[1].x = UPSCALE( control2->x ); + arc[1].y = UPSCALE( control2->y ); + arc[2].x = UPSCALE( control1->x ); + arc[2].y = UPSCALE( control1->y ); + arc[3].x = ras.x; + arc[3].y = ras.y; + + /* short-cut the arc that crosses the current band */ + if ( ( TRUNC( arc[0].y ) >= ras.max_ey && + TRUNC( arc[1].y ) >= ras.max_ey && + TRUNC( arc[2].y ) >= ras.max_ey && + TRUNC( arc[3].y ) >= ras.max_ey ) || + ( TRUNC( arc[0].y ) < ras.min_ey && + TRUNC( arc[1].y ) < ras.min_ey && + TRUNC( arc[2].y ) < ras.min_ey && + TRUNC( arc[3].y ) < ras.min_ey ) ) + { + ras.x = arc[0].x; + ras.y = arc[0].y; + return; + } + + for (;;) + { + /* with each split, control points quickly converge towards */ + /* chord trisection points and the vanishing distances below */ + /* indicate when the segment is flat enough to draw */ + if ( SW_FT_ABS( 2 * arc[0].x - 3 * arc[1].x + arc[3].x ) > ONE_PIXEL / 2 || + SW_FT_ABS( 2 * arc[0].y - 3 * arc[1].y + arc[3].y ) > ONE_PIXEL / 2 || + SW_FT_ABS( arc[0].x - 3 * arc[2].x + 2 * arc[3].x ) > ONE_PIXEL / 2 || + SW_FT_ABS( arc[0].y - 3 * arc[2].y + 2 * arc[3].y ) > ONE_PIXEL / 2 ) + goto Split; + + gray_render_line( RAS_VAR_ arc[0].x, arc[0].y ); + + if ( arc == ras.bez_stack ) + return; + + arc -= 3; + continue; + + Split: + gray_split_cubic( arc ); + arc += 3; + } +} + +static int gray_move_to(const SW_FT_Vector* to, gray_PWorker worker) +{ + TPos x, y; + + /* record current cell, if any */ + if (!ras.invalid) gray_record_cell(RAS_VAR); + + /* start to a new position */ + x = UPSCALE(to->x); + y = UPSCALE(to->y); + + gray_start_cell(RAS_VAR_ TRUNC(x), TRUNC(y)); + + worker->x = x; + worker->y = y; + return 0; +} + +static int gray_line_to(const SW_FT_Vector* to, gray_PWorker worker) +{ + gray_render_line(RAS_VAR_ UPSCALE(to->x), UPSCALE(to->y)); + return 0; +} + +static int gray_conic_to(const SW_FT_Vector* control, const SW_FT_Vector* to, + gray_PWorker worker) +{ + gray_render_conic(RAS_VAR_ control, to); + return 0; +} + +static int gray_cubic_to(const SW_FT_Vector* control1, + const SW_FT_Vector* control2, const SW_FT_Vector* to, + gray_PWorker worker) +{ + gray_render_cubic(RAS_VAR_ control1, control2, to); + return 0; +} + +static void gray_hline(RAS_ARG_ TCoord x, TCoord y, TPos area, TCoord acount) +{ + int coverage; + + /* compute the coverage line's coverage, depending on the */ + /* outline fill rule */ + /* */ + /* the coverage percentage is area/(PIXEL_BITS*PIXEL_BITS*2) */ + /* */ + coverage = (int)(area >> (PIXEL_BITS * 2 + 1 - 8)); + /* use range 0..256 */ + if (coverage < 0) coverage = -coverage; + + if (ras.outline.flags & SW_FT_OUTLINE_EVEN_ODD_FILL) { + coverage &= 511; + + if (coverage > 256) + coverage = 512 - coverage; + else if (coverage == 256) + coverage = 255; + } else { + /* normal non-zero winding rule */ + if (coverage >= 256) coverage = 255; + } + + y += (TCoord)ras.min_ey; + x += (TCoord)ras.min_ex; + + /* SW_FT_Span.x is a 16-bit short, so limit our coordinates appropriately */ + if (x >= 32767) x = 32767; + + /* SW_FT_Span.y is an integer, so limit our coordinates appropriately */ + if (y >= SW_FT_INT_MAX) y = SW_FT_INT_MAX; + + if (coverage) { + SW_FT_Span* span; + int count; + + // update bounding box. + if (x < ras.bound_left) ras.bound_left = x; + if (y < ras.bound_top) ras.bound_top = y; + if (y > ras.bound_bottom) ras.bound_bottom = y; + if (x + acount > ras.bound_right) ras.bound_right = x + acount; + + /* see whether we can add this span to the current list */ + count = ras.num_gray_spans; + span = ras.gray_spans + count - 1; + if (count > 0 && span->y == y && (int)span->x + span->len == (int)x && + span->coverage == coverage) { + span->len = (unsigned short)(span->len + acount); + return; + } + + if (count >= SW_FT_MAX_GRAY_SPANS) { + if (ras.render_span && count > 0) + ras.render_span(count, ras.gray_spans, ras.render_span_data); + +#ifdef DEBUG_GRAYS + + if (1) { + int n; + + fprintf(stderr, "count = %3d ", count); + span = ras.gray_spans; + for (n = 0; n < count; n++, span++) + fprintf(stderr, "[%d , %d..%d] : %d ", span->y, span->x, + span->x + span->len - 1, span->coverage); + fprintf(stderr, "\n"); + } + +#endif /* DEBUG_GRAYS */ + + ras.num_gray_spans = 0; + + span = ras.gray_spans; + } else + span++; + + /* add a gray span to the current list */ + span->x = (short)x; + span->y = (short)y; + span->len = (unsigned short)acount; + span->coverage = (unsigned char)coverage; + + ras.num_gray_spans++; + } +} + +static void gray_sweep(RAS_ARG) +{ + int yindex; + + if (ras.num_cells == 0) return; + + ras.num_gray_spans = 0; + + for (yindex = 0; yindex < ras.ycount; yindex++) { + PCell cell = ras.ycells[yindex]; + TCoord cover = 0; + TCoord x = 0; + + for (; cell != NULL; cell = cell->next) { + TPos area; + + if (cell->x > x && cover != 0) + gray_hline(RAS_VAR_ x, yindex, cover * (ONE_PIXEL * 2), + cell->x - x); + + cover += cell->cover; + area = cover * (ONE_PIXEL * 2) - cell->area; + + if (area != 0 && cell->x >= 0) + gray_hline(RAS_VAR_ cell->x, yindex, area, 1); + + x = cell->x + 1; + } + + if (cover != 0) + gray_hline(RAS_VAR_ x, yindex, cover * (ONE_PIXEL * 2), + ras.count_ex - x); + } + + if (ras.render_span && ras.num_gray_spans > 0) + ras.render_span(ras.num_gray_spans, ras.gray_spans, + ras.render_span_data); +} + +/*************************************************************************/ +/* */ +/* The following function should only compile in stand-alone mode, */ +/* i.e., when building this component without the rest of FreeType. */ +/* */ +/*************************************************************************/ + +/*************************************************************************/ +/* */ +/* <Function> */ +/* SW_FT_Outline_Decompose */ +/* */ +/* <Description> */ +/* Walk over an outline's structure to decompose it into individual */ +/* segments and Bézier arcs. This function is also able to emit */ +/* `move to' and `close to' operations to indicate the start and end */ +/* of new contours in the outline. */ +/* */ +/* <Input> */ +/* outline :: A pointer to the source target. */ +/* */ +/* func_interface :: A table of `emitters', i.e., function pointers */ +/* called during decomposition to indicate path */ +/* operations. */ +/* */ +/* <InOut> */ +/* user :: A typeless pointer which is passed to each */ +/* emitter during the decomposition. It can be */ +/* used to store the state during the */ +/* decomposition. */ +/* */ +/* <Return> */ +/* Error code. 0 means success. */ +/* */ +static int SW_FT_Outline_Decompose(const SW_FT_Outline* outline, + const SW_FT_Outline_Funcs* func_interface, + void* user) +{ +#undef SCALED +#define SCALED(x) (((x) << shift) - delta) + + SW_FT_Vector v_last; + SW_FT_Vector v_control; + SW_FT_Vector v_start; + + SW_FT_Vector* point; + SW_FT_Vector* limit; + char* tags; + + int error; + + int n; /* index of contour in outline */ + int first; /* index of first point in contour */ + char tag; /* current point's state */ + + int shift; + TPos delta; + + if (!outline || !func_interface) return SW_FT_THROW(Invalid_Argument); + + shift = func_interface->shift; + delta = func_interface->delta; + first = 0; + + for (n = 0; n < outline->n_contours; n++) { + int last; /* index of last point in contour */ + + last = outline->contours[n]; + if (last < 0) goto Invalid_Outline; + limit = outline->points + last; + + v_start = outline->points[first]; + v_start.x = SCALED(v_start.x); + v_start.y = SCALED(v_start.y); + + v_last = outline->points[last]; + v_last.x = SCALED(v_last.x); + v_last.y = SCALED(v_last.y); + + v_control = v_start; + + point = outline->points + first; + tags = outline->tags + first; + tag = SW_FT_CURVE_TAG(tags[0]); + + /* A contour cannot start with a cubic control point! */ + if (tag == SW_FT_CURVE_TAG_CUBIC) goto Invalid_Outline; + + /* check first point to determine origin */ + if (tag == SW_FT_CURVE_TAG_CONIC) { + /* first point is conic control. Yes, this happens. */ + if (SW_FT_CURVE_TAG(outline->tags[last]) == SW_FT_CURVE_TAG_ON) { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } else { + /* if both first and last points are conic, */ + /* start at their middle and record its position */ + /* for closure */ + v_start.x = (v_start.x + v_last.x) / 2; + v_start.y = (v_start.y + v_last.y) / 2; + } + point--; + tags--; + } + + error = func_interface->move_to(&v_start, user); + if (error) goto Exit; + + while (point < limit) { + point++; + tags++; + + tag = SW_FT_CURVE_TAG(tags[0]); + switch (tag) { + case SW_FT_CURVE_TAG_ON: /* emit a single line_to */ + { + SW_FT_Vector vec; + + vec.x = SCALED(point->x); + vec.y = SCALED(point->y); + + error = func_interface->line_to(&vec, user); + if (error) goto Exit; + continue; + } + + case SW_FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = SCALED(point->x); + v_control.y = SCALED(point->y); + + Do_Conic: + if (point < limit) { + SW_FT_Vector vec; + SW_FT_Vector v_middle; + + point++; + tags++; + tag = SW_FT_CURVE_TAG(tags[0]); + + vec.x = SCALED(point->x); + vec.y = SCALED(point->y); + + if (tag == SW_FT_CURVE_TAG_ON) { + error = + func_interface->conic_to(&v_control, &vec, user); + if (error) goto Exit; + continue; + } + + if (tag != SW_FT_CURVE_TAG_CONIC) goto Invalid_Outline; + + v_middle.x = (v_control.x + vec.x) / 2; + v_middle.y = (v_control.y + vec.y) / 2; + + error = + func_interface->conic_to(&v_control, &v_middle, user); + if (error) goto Exit; + + v_control = vec; + goto Do_Conic; + } + + error = func_interface->conic_to(&v_control, &v_start, user); + goto Close; + + default: /* SW_FT_CURVE_TAG_CUBIC */ + { + SW_FT_Vector vec1, vec2; + + if (point + 1 > limit || + SW_FT_CURVE_TAG(tags[1]) != SW_FT_CURVE_TAG_CUBIC) + goto Invalid_Outline; + + point += 2; + tags += 2; + + vec1.x = SCALED(point[-2].x); + vec1.y = SCALED(point[-2].y); + + vec2.x = SCALED(point[-1].x); + vec2.y = SCALED(point[-1].y); + + if (point <= limit) { + SW_FT_Vector vec; + + vec.x = SCALED(point->x); + vec.y = SCALED(point->y); + + error = func_interface->cubic_to(&vec1, &vec2, &vec, user); + if (error) goto Exit; + continue; + } + + error = func_interface->cubic_to(&vec1, &vec2, &v_start, user); + goto Close; + } + } + } + + /* close the contour with a line segment */ + error = func_interface->line_to(&v_start, user); + + Close: + if (error) goto Exit; + + first = last + 1; + } + + return 0; + +Exit: + return error; + +Invalid_Outline: + return SW_FT_THROW(Invalid_Outline); +} + +typedef struct gray_TBand_ { + TPos min, max; + +} gray_TBand; + +SW_FT_DEFINE_OUTLINE_FUNCS(func_interface, + (SW_FT_Outline_MoveTo_Func)gray_move_to, + (SW_FT_Outline_LineTo_Func)gray_line_to, + (SW_FT_Outline_ConicTo_Func)gray_conic_to, + (SW_FT_Outline_CubicTo_Func)gray_cubic_to, 0, 0) + +static int gray_convert_glyph_inner(RAS_ARG) +{ + volatile int error = 0; + + if (ft_setjmp(ras.jump_buffer) == 0) { + error = SW_FT_Outline_Decompose(&ras.outline, &func_interface, &ras); + if (!ras.invalid) gray_record_cell(RAS_VAR); + } else + error = SW_FT_THROW(Memory_Overflow); + + return error; +} + +static int gray_convert_glyph(RAS_ARG) +{ + gray_TBand bands[40]; + gray_TBand* volatile band; + int volatile n, num_bands; + TPos volatile min, max, max_y; + SW_FT_BBox* clip; + + /* Set up state in the raster object */ + gray_compute_cbox(RAS_VAR); + + /* clip to target bitmap, exit if nothing to do */ + clip = &ras.clip_box; + + if (ras.max_ex <= clip->xMin || ras.min_ex >= clip->xMax || + ras.max_ey <= clip->yMin || ras.min_ey >= clip->yMax) + return 0; + + if (ras.min_ex < clip->xMin) ras.min_ex = clip->xMin; + if (ras.min_ey < clip->yMin) ras.min_ey = clip->yMin; + + if (ras.max_ex > clip->xMax) ras.max_ex = clip->xMax; + if (ras.max_ey > clip->yMax) ras.max_ey = clip->yMax; + + ras.count_ex = ras.max_ex - ras.min_ex; + ras.count_ey = ras.max_ey - ras.min_ey; + + /* set up vertical bands */ + num_bands = (int)((ras.max_ey - ras.min_ey) / ras.band_size); + if (num_bands == 0) num_bands = 1; + if (num_bands >= 39) num_bands = 39; + + ras.band_shoot = 0; + + min = ras.min_ey; + max_y = ras.max_ey; + + for (n = 0; n < num_bands; n++, min = max) { + max = min + ras.band_size; + if (n == num_bands - 1 || max > max_y) max = max_y; + + bands[0].min = min; + bands[0].max = max; + band = bands; + + while (band >= bands) { + TPos bottom, top, middle; + int error; + + { + PCell cells_max; + int yindex; + long cell_start, cell_end, cell_mod; + + ras.ycells = (PCell*)ras.buffer; + ras.ycount = band->max - band->min; + + cell_start = sizeof(PCell) * ras.ycount; + cell_mod = cell_start % sizeof(TCell); + if (cell_mod > 0) cell_start += sizeof(TCell) - cell_mod; + + cell_end = ras.buffer_size; + cell_end -= cell_end % sizeof(TCell); + + cells_max = (PCell)((char*)ras.buffer + cell_end); + ras.cells = (PCell)((char*)ras.buffer + cell_start); + if (ras.cells >= cells_max) goto ReduceBands; + + ras.max_cells = cells_max - ras.cells; + if (ras.max_cells < 2) goto ReduceBands; + + for (yindex = 0; yindex < ras.ycount; yindex++) + ras.ycells[yindex] = NULL; + } + + ras.num_cells = 0; + ras.invalid = 1; + ras.min_ey = band->min; + ras.max_ey = band->max; + ras.count_ey = band->max - band->min; + + error = gray_convert_glyph_inner(RAS_VAR); + + if (!error) { + gray_sweep(RAS_VAR); + band--; + continue; + } else if (error != ErrRaster_Memory_Overflow) + return 1; + + ReduceBands: + /* render pool overflow; we will reduce the render band by half */ + bottom = band->min; + top = band->max; + middle = bottom + ((top - bottom) >> 1); + + /* This is too complex for a single scanline; there must */ + /* be some problems. */ + if (middle == bottom) { + return 1; + } + + if (bottom - top >= ras.band_size) ras.band_shoot++; + + band[1].min = bottom; + band[1].max = middle; + band[0].min = middle; + band[0].max = top; + band++; + } + } + + if (ras.band_shoot > 8 && ras.band_size > 16) + ras.band_size = ras.band_size / 2; + + return 0; +} + +static int gray_raster_render(gray_PRaster raster, + const SW_FT_Raster_Params* params) +{ + SW_FT_UNUSED(raster); + const SW_FT_Outline* outline = (const SW_FT_Outline*)params->source; + + gray_TWorker worker[1]; + + TCell buffer[SW_FT_RENDER_POOL_SIZE / sizeof(TCell)]; + long buffer_size = sizeof(buffer); + int band_size = (int)(buffer_size / (long)(sizeof(TCell) * 8)); + + if (!outline) return SW_FT_THROW(Invalid_Outline); + + /* return immediately if the outline is empty */ + if (outline->n_points == 0 || outline->n_contours <= 0) return 0; + + if (!outline->contours || !outline->points) + return SW_FT_THROW(Invalid_Outline); + + if (outline->n_points != outline->contours[outline->n_contours - 1] + 1) + return SW_FT_THROW(Invalid_Outline); + + /* this version does not support monochrome rendering */ + if (!(params->flags & SW_FT_RASTER_FLAG_AA)) + return SW_FT_THROW(Invalid_Mode); + + if (params->flags & SW_FT_RASTER_FLAG_CLIP) + ras.clip_box = params->clip_box; + else { + ras.clip_box.xMin = -32768L; + ras.clip_box.yMin = -32768L; + ras.clip_box.xMax = 32767L; + ras.clip_box.yMax = 32767L; + } + + gray_init_cells(RAS_VAR_ buffer, buffer_size); + + ras.outline = *outline; + ras.num_cells = 0; + ras.invalid = 1; + ras.band_size = band_size; + ras.num_gray_spans = 0; + + ras.render_span = (SW_FT_Raster_Span_Func)params->gray_spans; + ras.render_span_data = params->user; + + gray_convert_glyph(RAS_VAR); + params->bbox_cb(ras.bound_left, ras.bound_top, + ras.bound_right - ras.bound_left, + ras.bound_bottom - ras.bound_top + 1, params->user); + return 1; +} + +/**** RASTER OBJECT CREATION: In stand-alone mode, we simply use *****/ +/**** a static object. *****/ + +static int gray_raster_new(SW_FT_Raster* araster) +{ + static gray_TRaster the_raster; + + *araster = (SW_FT_Raster)&the_raster; + SW_FT_MEM_ZERO(&the_raster, sizeof(the_raster)); + + return 0; +} + +static void gray_raster_done(SW_FT_Raster raster) +{ + /* nothing */ + SW_FT_UNUSED(raster); +} + +static void gray_raster_reset(SW_FT_Raster raster, char* pool_base, + long pool_size) +{ + SW_FT_UNUSED(raster); + SW_FT_UNUSED(pool_base); + SW_FT_UNUSED(pool_size); +} + +SW_FT_DEFINE_RASTER_FUNCS(sw_ft_grays_raster, + + (SW_FT_Raster_New_Func)gray_raster_new, + (SW_FT_Raster_Reset_Func)gray_raster_reset, + (SW_FT_Raster_Render_Func)gray_raster_render, + (SW_FT_Raster_Done_Func)gray_raster_done) + +/* END */ diff --git a/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_raster.h b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_raster.h new file mode 100644 index 00000000..da585775 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_raster.h @@ -0,0 +1,607 @@ +#ifndef V_FT_IMG_H +#define V_FT_IMG_H +/***************************************************************************/ +/* */ +/* ftimage.h */ +/* */ +/* FreeType glyph image formats and default raster interface */ +/* (specification). */ +/* */ +/* Copyright 1996-2010, 2013 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Note: A `raster' is simply a scan-line converter, used to render */ + /* SW_FT_Outlines into SW_FT_Bitmaps. */ + /* */ + /*************************************************************************/ + +#include "vector_freetype_v_ft_types.h" + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_BBox */ + /* */ + /* <Description> */ + /* A structure used to hold an outline's bounding box, i.e., the */ + /* coordinates of its extrema in the horizontal and vertical */ + /* directions. */ + /* */ + /* <Fields> */ + /* xMin :: The horizontal minimum (left-most). */ + /* */ + /* yMin :: The vertical minimum (bottom-most). */ + /* */ + /* xMax :: The horizontal maximum (right-most). */ + /* */ + /* yMax :: The vertical maximum (top-most). */ + /* */ + /* <Note> */ + /* The bounding box is specified with the coordinates of the lower */ + /* left and the upper right corner. In PostScript, those values are */ + /* often called (llx,lly) and (urx,ury), respectively. */ + /* */ + /* If `yMin' is negative, this value gives the glyph's descender. */ + /* Otherwise, the glyph doesn't descend below the baseline. */ + /* Similarly, if `ymax' is positive, this value gives the glyph's */ + /* ascender. */ + /* */ + /* `xMin' gives the horizontal distance from the glyph's origin to */ + /* the left edge of the glyph's bounding box. If `xMin' is negative, */ + /* the glyph extends to the left of the origin. */ + /* */ + typedef struct SW_FT_BBox_ + { + SW_FT_Pos xMin, yMin; + SW_FT_Pos xMax, yMax; + + } SW_FT_BBox; + +/*************************************************************************/ +/* */ +/* <Struct> */ +/* SW_FT_Outline */ +/* */ +/* <Description> */ +/* This structure is used to describe an outline to the scan-line */ +/* converter. */ +/* */ +/* <Fields> */ +/* n_contours :: The number of contours in the outline. */ +/* */ +/* n_points :: The number of points in the outline. */ +/* */ +/* points :: A pointer to an array of `n_points' @SW_FT_Vector */ +/* elements, giving the outline's point coordinates. */ +/* */ +/* tags :: A pointer to an array of `n_points' chars, giving */ +/* each outline point's type. */ +/* */ +/* If bit~0 is unset, the point is `off' the curve, */ +/* i.e., a Bézier control point, while it is `on' if */ +/* set. */ +/* */ +/* Bit~1 is meaningful for `off' points only. If set, */ +/* it indicates a third-order Bézier arc control point; */ +/* and a second-order control point if unset. */ +/* */ +/* If bit~2 is set, bits 5-7 contain the drop-out mode */ +/* (as defined in the OpenType specification; the value */ +/* is the same as the argument to the SCANMODE */ +/* instruction). */ +/* */ +/* Bits 3 and~4 are reserved for internal purposes. */ +/* */ +/* contours :: An array of `n_contours' shorts, giving the end */ +/* point of each contour within the outline. For */ +/* example, the first contour is defined by the points */ +/* `0' to `contours[0]', the second one is defined by */ +/* the points `contours[0]+1' to `contours[1]', etc. */ +/* */ +/* flags :: A set of bit flags used to characterize the outline */ +/* and give hints to the scan-converter and hinter on */ +/* how to convert/grid-fit it. See @SW_FT_OUTLINE_FLAGS.*/ +/* */ +typedef struct SW_FT_Outline_ +{ + short n_contours; /* number of contours in glyph */ + short n_points; /* number of points in the glyph */ + + SW_FT_Vector* points; /* the outline's points */ + char* tags; /* the points flags */ + short* contours; /* the contour end points */ + char* contours_flag; /* the contour open flags */ + + int flags; /* outline masks */ + +} SW_FT_Outline; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* SW_FT_OUTLINE_FLAGS */ + /* */ + /* <Description> */ + /* A list of bit-field constants use for the flags in an outline's */ + /* `flags' field. */ + /* */ + /* <Values> */ + /* SW_FT_OUTLINE_NONE :: */ + /* Value~0 is reserved. */ + /* */ + /* SW_FT_OUTLINE_OWNER :: */ + /* If set, this flag indicates that the outline's field arrays */ + /* (i.e., `points', `flags', and `contours') are `owned' by the */ + /* outline object, and should thus be freed when it is destroyed. */ + /* */ + /* SW_FT_OUTLINE_EVEN_ODD_FILL :: */ + /* By default, outlines are filled using the non-zero winding rule. */ + /* If set to 1, the outline will be filled using the even-odd fill */ + /* rule (only works with the smooth rasterizer). */ + /* */ + /* SW_FT_OUTLINE_REVERSE_FILL :: */ + /* By default, outside contours of an outline are oriented in */ + /* clock-wise direction, as defined in the TrueType specification. */ + /* This flag is set if the outline uses the opposite direction */ + /* (typically for Type~1 fonts). This flag is ignored by the scan */ + /* converter. */ + /* */ + /* */ + /* */ + /* There exists a second mechanism to pass the drop-out mode to the */ + /* B/W rasterizer; see the `tags' field in @SW_FT_Outline. */ + /* */ + /* Please refer to the description of the `SCANTYPE' instruction in */ + /* the OpenType specification (in file `ttinst1.doc') how simple */ + /* drop-outs, smart drop-outs, and stubs are defined. */ + /* */ +#define SW_FT_OUTLINE_NONE 0x0 +#define SW_FT_OUTLINE_OWNER 0x1 +#define SW_FT_OUTLINE_EVEN_ODD_FILL 0x2 +#define SW_FT_OUTLINE_REVERSE_FILL 0x4 + + /* */ + +#define SW_FT_CURVE_TAG( flag ) ( flag & 3 ) + +#define SW_FT_CURVE_TAG_ON 1 +#define SW_FT_CURVE_TAG_CONIC 0 +#define SW_FT_CURVE_TAG_CUBIC 2 + + +#define SW_FT_Curve_Tag_On SW_FT_CURVE_TAG_ON +#define SW_FT_Curve_Tag_Conic SW_FT_CURVE_TAG_CONIC +#define SW_FT_Curve_Tag_Cubic SW_FT_CURVE_TAG_CUBIC + + /*************************************************************************/ + /* */ + /* A raster is a scan converter, in charge of rendering an outline into */ + /* a a bitmap. This section contains the public API for rasters. */ + /* */ + /* Note that in FreeType 2, all rasters are now encapsulated within */ + /* specific modules called `renderers'. See `ftrender.h' for more */ + /* details on renderers. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* SW_FT_Raster */ + /* */ + /* <Description> */ + /* A handle (pointer) to a raster object. Each object can be used */ + /* independently to convert an outline into a bitmap or pixmap. */ + /* */ + typedef struct SW_FT_RasterRec_* SW_FT_Raster; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* SW_FT_Span */ + /* */ + /* <Description> */ + /* A structure used to model a single span of gray (or black) pixels */ + /* when rendering a monochrome or anti-aliased bitmap. */ + /* */ + /* <Fields> */ + /* x :: The span's horizontal start position. */ + /* */ + /* len :: The span's length in pixels. */ + /* */ + /* coverage :: The span color/coverage, ranging from 0 (background) */ + /* to 255 (foreground). Only used for anti-aliased */ + /* rendering. */ + /* */ + /* <Note> */ + /* This structure is used by the span drawing callback type named */ + /* @SW_FT_SpanFunc that takes the y~coordinate of the span as a */ + /* parameter. */ + /* */ + /* The coverage value is always between 0 and 255. If you want less */ + /* gray values, the callback function has to reduce them. */ + /* */ + typedef struct SW_FT_Span_ + { + short x; + short y; + unsigned short len; + unsigned char coverage; + + } SW_FT_Span; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* SW_FT_SpanFunc */ + /* */ + /* <Description> */ + /* A function used as a call-back by the anti-aliased renderer in */ + /* order to let client applications draw themselves the gray pixel */ + /* spans on each scan line. */ + /* */ + /* <Input> */ + /* y :: The scanline's y~coordinate. */ + /* */ + /* count :: The number of spans to draw on this scanline. */ + /* */ + /* spans :: A table of `count' spans to draw on the scanline. */ + /* */ + /* user :: User-supplied data that is passed to the callback. */ + /* */ + /* <Note> */ + /* This callback allows client applications to directly render the */ + /* gray spans of the anti-aliased bitmap to any kind of surfaces. */ + /* */ + /* This can be used to write anti-aliased outlines directly to a */ + /* given background bitmap, and even perform translucency. */ + /* */ + /* Note that the `count' field cannot be greater than a fixed value */ + /* defined by the `SW_FT_MAX_GRAY_SPANS' configuration macro in */ + /* `ftoption.h'. By default, this value is set to~32, which means */ + /* that if there are more than 32~spans on a given scanline, the */ + /* callback is called several times with the same `y' parameter in */ + /* order to draw all callbacks. */ + /* */ + /* Otherwise, the callback is only called once per scan-line, and */ + /* only for those scanlines that do have `gray' pixels on them. */ + /* */ + typedef void + (*SW_FT_SpanFunc)( int count, + const SW_FT_Span* spans, + void* user ); + + typedef void + (*SW_FT_BboxFunc)( int x, int y, int w, int h, + void* user); + +#define SW_FT_Raster_Span_Func SW_FT_SpanFunc + + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* SW_FT_RASTER_FLAG_XXX */ + /* */ + /* <Description> */ + /* A list of bit flag constants as used in the `flags' field of a */ + /* @SW_FT_Raster_Params structure. */ + /* */ + /* <Values> */ + /* SW_FT_RASTER_FLAG_DEFAULT :: This value is 0. */ + /* */ + /* SW_FT_RASTER_FLAG_AA :: This flag is set to indicate that an */ + /* anti-aliased glyph image should be */ + /* generated. Otherwise, it will be */ + /* monochrome (1-bit). */ + /* */ + /* SW_FT_RASTER_FLAG_DIRECT :: This flag is set to indicate direct */ + /* rendering. In this mode, client */ + /* applications must provide their own span */ + /* callback. This lets them directly */ + /* draw or compose over an existing bitmap. */ + /* If this bit is not set, the target */ + /* pixmap's buffer _must_ be zeroed before */ + /* rendering. */ + /* */ + /* Note that for now, direct rendering is */ + /* only possible with anti-aliased glyphs. */ + /* */ + /* SW_FT_RASTER_FLAG_CLIP :: This flag is only used in direct */ + /* rendering mode. If set, the output will */ + /* be clipped to a box specified in the */ + /* `clip_box' field of the */ + /* @SW_FT_Raster_Params structure. */ + /* */ + /* Note that by default, the glyph bitmap */ + /* is clipped to the target pixmap, except */ + /* in direct rendering mode where all spans */ + /* are generated if no clipping box is set. */ + /* */ +#define SW_FT_RASTER_FLAG_DEFAULT 0x0 +#define SW_FT_RASTER_FLAG_AA 0x1 +#define SW_FT_RASTER_FLAG_DIRECT 0x2 +#define SW_FT_RASTER_FLAG_CLIP 0x4 + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* SW_FT_Raster_Params */ + /* */ + /* <Description> */ + /* A structure to hold the arguments used by a raster's render */ + /* function. */ + /* */ + /* <Fields> */ + /* target :: The target bitmap. */ + /* */ + /* source :: A pointer to the source glyph image (e.g., an */ + /* @SW_FT_Outline). */ + /* */ + /* flags :: The rendering flags. */ + /* */ + /* gray_spans :: The gray span drawing callback. */ + /* */ + /* black_spans :: The black span drawing callback. UNIMPLEMENTED! */ + /* */ + /* bit_test :: The bit test callback. UNIMPLEMENTED! */ + /* */ + /* bit_set :: The bit set callback. UNIMPLEMENTED! */ + /* */ + /* user :: User-supplied data that is passed to each drawing */ + /* callback. */ + /* */ + /* clip_box :: An optional clipping box. It is only used in */ + /* direct rendering mode. Note that coordinates here */ + /* should be expressed in _integer_ pixels (and not in */ + /* 26.6 fixed-point units). */ + /* */ + /* <Note> */ + /* An anti-aliased glyph bitmap is drawn if the @SW_FT_RASTER_FLAG_AA */ + /* bit flag is set in the `flags' field, otherwise a monochrome */ + /* bitmap is generated. */ + /* */ + /* If the @SW_FT_RASTER_FLAG_DIRECT bit flag is set in `flags', the */ + /* raster will call the `gray_spans' callback to draw gray pixel */ + /* spans, in the case of an aa glyph bitmap, it will call */ + /* `black_spans', and `bit_test' and `bit_set' in the case of a */ + /* monochrome bitmap. This allows direct composition over a */ + /* pre-existing bitmap through user-provided callbacks to perform the */ + /* span drawing/composition. */ + /* */ + /* Note that the `bit_test' and `bit_set' callbacks are required when */ + /* rendering a monochrome bitmap, as they are crucial to implement */ + /* correct drop-out control as defined in the TrueType specification. */ + /* */ + typedef struct SW_FT_Raster_Params_ + { + const void* source; + int flags; + SW_FT_SpanFunc gray_spans; + SW_FT_BboxFunc bbox_cb; + void* user; + SW_FT_BBox clip_box; + + } SW_FT_Raster_Params; + + +/*************************************************************************/ +/* */ +/* <Function> */ +/* SW_FT_Outline_Check */ +/* */ +/* <Description> */ +/* Check the contents of an outline descriptor. */ +/* */ +/* <Input> */ +/* outline :: A handle to a source outline. */ +/* */ +/* <Return> */ +/* FreeType error code. 0~means success. */ +/* */ +SW_FT_Error +SW_FT_Outline_Check( SW_FT_Outline* outline ); + + +/*************************************************************************/ +/* */ +/* <Function> */ +/* SW_FT_Outline_Get_CBox */ +/* */ +/* <Description> */ +/* Return an outline's `control box'. The control box encloses all */ +/* the outline's points, including Bézier control points. Though it */ +/* coincides with the exact bounding box for most glyphs, it can be */ +/* slightly larger in some situations (like when rotating an outline */ +/* that contains Bézier outside arcs). */ +/* */ +/* Computing the control box is very fast, while getting the bounding */ +/* box can take much more time as it needs to walk over all segments */ +/* and arcs in the outline. To get the latter, you can use the */ +/* `ftbbox' component, which is dedicated to this single task. */ +/* */ +/* <Input> */ +/* outline :: A pointer to the source outline descriptor. */ +/* */ +/* <Output> */ +/* acbox :: The outline's control box. */ +/* */ +/* <Note> */ +/* See @SW_FT_Glyph_Get_CBox for a discussion of tricky fonts. */ +/* */ +void +SW_FT_Outline_Get_CBox( const SW_FT_Outline* outline, + SW_FT_BBox *acbox ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* SW_FT_Raster_NewFunc */ + /* */ + /* <Description> */ + /* A function used to create a new raster object. */ + /* */ + /* <Input> */ + /* memory :: A handle to the memory allocator. */ + /* */ + /* <Output> */ + /* raster :: A handle to the new raster object. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + /* <Note> */ + /* The `memory' parameter is a typeless pointer in order to avoid */ + /* un-wanted dependencies on the rest of the FreeType code. In */ + /* practice, it is an @SW_FT_Memory object, i.e., a handle to the */ + /* standard FreeType memory allocator. However, this field can be */ + /* completely ignored by a given raster implementation. */ + /* */ + typedef int + (*SW_FT_Raster_NewFunc)( SW_FT_Raster* raster ); + +#define SW_FT_Raster_New_Func SW_FT_Raster_NewFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* SW_FT_Raster_DoneFunc */ + /* */ + /* <Description> */ + /* A function used to destroy a given raster object. */ + /* */ + /* <Input> */ + /* raster :: A handle to the raster object. */ + /* */ + typedef void + (*SW_FT_Raster_DoneFunc)( SW_FT_Raster raster ); + +#define SW_FT_Raster_Done_Func SW_FT_Raster_DoneFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* SW_FT_Raster_ResetFunc */ + /* */ + /* <Description> */ + /* FreeType provides an area of memory called the `render pool', */ + /* available to all registered rasters. This pool can be freely used */ + /* during a given scan-conversion but is shared by all rasters. Its */ + /* content is thus transient. */ + /* */ + /* This function is called each time the render pool changes, or just */ + /* after a new raster object is created. */ + /* */ + /* <Input> */ + /* raster :: A handle to the new raster object. */ + /* */ + /* pool_base :: The address in memory of the render pool. */ + /* */ + /* pool_size :: The size in bytes of the render pool. */ + /* */ + /* <Note> */ + /* Rasters can ignore the render pool and rely on dynamic memory */ + /* allocation if they want to (a handle to the memory allocator is */ + /* passed to the raster constructor). However, this is not */ + /* recommended for efficiency purposes. */ + /* */ + typedef void + (*SW_FT_Raster_ResetFunc)( SW_FT_Raster raster, + unsigned char* pool_base, + unsigned long pool_size ); + +#define SW_FT_Raster_Reset_Func SW_FT_Raster_ResetFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* SW_FT_Raster_RenderFunc */ + /* */ + /* <Description> */ + /* Invoke a given raster to scan-convert a given glyph image into a */ + /* target bitmap. */ + /* */ + /* <Input> */ + /* raster :: A handle to the raster object. */ + /* */ + /* params :: A pointer to an @SW_FT_Raster_Params structure used to */ + /* store the rendering parameters. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + /* <Note> */ + /* The exact format of the source image depends on the raster's glyph */ + /* format defined in its @SW_FT_Raster_Funcs structure. It can be an */ + /* @SW_FT_Outline or anything else in order to support a large array of */ + /* glyph formats. */ + /* */ + /* Note also that the render function can fail and return a */ + /* `SW_FT_Err_Unimplemented_Feature' error code if the raster used does */ + /* not support direct composition. */ + /* */ + /* XXX: For now, the standard raster doesn't support direct */ + /* composition but this should change for the final release (see */ + /* the files `demos/src/ftgrays.c' and `demos/src/ftgrays2.c' */ + /* for examples of distinct implementations that support direct */ + /* composition). */ + /* */ + typedef int + (*SW_FT_Raster_RenderFunc)( SW_FT_Raster raster, + const SW_FT_Raster_Params* params ); + +#define SW_FT_Raster_Render_Func SW_FT_Raster_RenderFunc + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* SW_FT_Raster_Funcs */ + /* */ + /* <Description> */ + /* A structure used to describe a given raster class to the library. */ + /* */ + /* <Fields> */ + /* glyph_format :: The supported glyph format for this raster. */ + /* */ + /* raster_new :: The raster constructor. */ + /* */ + /* raster_reset :: Used to reset the render pool within the raster. */ + /* */ + /* raster_render :: A function to render a glyph into a given bitmap. */ + /* */ + /* raster_done :: The raster destructor. */ + /* */ + typedef struct SW_FT_Raster_Funcs_ + { + SW_FT_Raster_NewFunc raster_new; + SW_FT_Raster_ResetFunc raster_reset; + SW_FT_Raster_RenderFunc raster_render; + SW_FT_Raster_DoneFunc raster_done; + + } SW_FT_Raster_Funcs; + + +extern const SW_FT_Raster_Funcs sw_ft_grays_raster; + +#endif // V_FT_IMG_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_stroker.cpp b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_stroker.cpp new file mode 100644 index 00000000..aed62c92 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_stroker.cpp @@ -0,0 +1,1936 @@ + +/***************************************************************************/ +/* */ +/* ftstroke.c */ +/* */ +/* FreeType path stroker (body). */ +/* */ +/* Copyright 2002-2006, 2008-2011, 2013 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include "vector_freetype_v_ft_stroker.h" +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include "vector_freetype_v_ft_math.h" + +/*************************************************************************/ +/*************************************************************************/ +/***** *****/ +/***** BEZIER COMPUTATIONS *****/ +/***** *****/ +/*************************************************************************/ +/*************************************************************************/ + +#define SW_FT_SMALL_CONIC_THRESHOLD (SW_FT_ANGLE_PI / 6) +#define SW_FT_SMALL_CUBIC_THRESHOLD (SW_FT_ANGLE_PI / 8) + +#define SW_FT_EPSILON 2 + +#define SW_FT_IS_SMALL(x) ((x) > -SW_FT_EPSILON && (x) < SW_FT_EPSILON) + +static SW_FT_Pos ft_pos_abs(SW_FT_Pos x) +{ + return x >= 0 ? x : -x; +} + +static void ft_conic_split(SW_FT_Vector* base) +{ + SW_FT_Pos a, b; + + base[4].x = base[2].x; + a = base[0].x + base[1].x; + b = base[1].x + base[2].x; + base[3].x = b >> 1; + base[2].x = ( a + b ) >> 2; + base[1].x = a >> 1; + + base[4].y = base[2].y; + a = base[0].y + base[1].y; + b = base[1].y + base[2].y; + base[3].y = b >> 1; + base[2].y = ( a + b ) >> 2; + base[1].y = a >> 1; +} + +static SW_FT_Bool ft_conic_is_small_enough(SW_FT_Vector* base, + SW_FT_Angle* angle_in, + SW_FT_Angle* angle_out) +{ + SW_FT_Vector d1, d2; + SW_FT_Angle theta; + SW_FT_Int close1, close2; + + d1.x = base[1].x - base[2].x; + d1.y = base[1].y - base[2].y; + d2.x = base[0].x - base[1].x; + d2.y = base[0].y - base[1].y; + + close1 = SW_FT_IS_SMALL(d1.x) && SW_FT_IS_SMALL(d1.y); + close2 = SW_FT_IS_SMALL(d2.x) && SW_FT_IS_SMALL(d2.y); + + if (close1) { + if (close2) { + /* basically a point; */ + /* do nothing to retain original direction */ + } else { + *angle_in = *angle_out = SW_FT_Atan2(d2.x, d2.y); + } + } else /* !close1 */ + { + if (close2) { + *angle_in = *angle_out = SW_FT_Atan2(d1.x, d1.y); + } else { + *angle_in = SW_FT_Atan2(d1.x, d1.y); + *angle_out = SW_FT_Atan2(d2.x, d2.y); + } + } + + theta = ft_pos_abs(SW_FT_Angle_Diff(*angle_in, *angle_out)); + + return SW_FT_BOOL(theta < SW_FT_SMALL_CONIC_THRESHOLD); +} + +static void ft_cubic_split(SW_FT_Vector* base) +{ + SW_FT_Pos a, b, c; + + base[6].x = base[3].x; + a = base[0].x + base[1].x; + b = base[1].x + base[2].x; + c = base[2].x + base[3].x; + base[5].x = c >> 1; + c += b; + base[4].x = c >> 2; + base[1].x = a >> 1; + a += b; + base[2].x = a >> 2; + base[3].x = ( a + c ) >> 3; + + base[6].y = base[3].y; + a = base[0].y + base[1].y; + b = base[1].y + base[2].y; + c = base[2].y + base[3].y; + base[5].y = c >> 1; + c += b; + base[4].y = c >> 2; + base[1].y = a >> 1; + a += b; + base[2].y = a >> 2; + base[3].y = ( a + c ) >> 3; +} + +/* Return the average of `angle1' and `angle2'. */ +/* This gives correct result even if `angle1' and `angle2' */ +/* have opposite signs. */ +static SW_FT_Angle ft_angle_mean(SW_FT_Angle angle1, SW_FT_Angle angle2) +{ + return angle1 + SW_FT_Angle_Diff(angle1, angle2) / 2; +} + +static SW_FT_Bool ft_cubic_is_small_enough(SW_FT_Vector* base, + SW_FT_Angle* angle_in, + SW_FT_Angle* angle_mid, + SW_FT_Angle* angle_out) +{ + SW_FT_Vector d1, d2, d3; + SW_FT_Angle theta1, theta2; + SW_FT_Int close1, close2, close3; + + d1.x = base[2].x - base[3].x; + d1.y = base[2].y - base[3].y; + d2.x = base[1].x - base[2].x; + d2.y = base[1].y - base[2].y; + d3.x = base[0].x - base[1].x; + d3.y = base[0].y - base[1].y; + + close1 = SW_FT_IS_SMALL(d1.x) && SW_FT_IS_SMALL(d1.y); + close2 = SW_FT_IS_SMALL(d2.x) && SW_FT_IS_SMALL(d2.y); + close3 = SW_FT_IS_SMALL(d3.x) && SW_FT_IS_SMALL(d3.y); + + if (close1) { + if (close2) { + if (close3) { + /* basically a point; */ + /* do nothing to retain original direction */ + } else /* !close3 */ + { + *angle_in = *angle_mid = *angle_out = SW_FT_Atan2(d3.x, d3.y); + } + } else /* !close2 */ + { + if (close3) { + *angle_in = *angle_mid = *angle_out = SW_FT_Atan2(d2.x, d2.y); + } else /* !close3 */ + { + *angle_in = *angle_mid = SW_FT_Atan2(d2.x, d2.y); + *angle_out = SW_FT_Atan2(d3.x, d3.y); + } + } + } else /* !close1 */ + { + if (close2) { + if (close3) { + *angle_in = *angle_mid = *angle_out = SW_FT_Atan2(d1.x, d1.y); + } else /* !close3 */ + { + *angle_in = SW_FT_Atan2(d1.x, d1.y); + *angle_out = SW_FT_Atan2(d3.x, d3.y); + *angle_mid = ft_angle_mean(*angle_in, *angle_out); + } + } else /* !close2 */ + { + if (close3) { + *angle_in = SW_FT_Atan2(d1.x, d1.y); + *angle_mid = *angle_out = SW_FT_Atan2(d2.x, d2.y); + } else /* !close3 */ + { + *angle_in = SW_FT_Atan2(d1.x, d1.y); + *angle_mid = SW_FT_Atan2(d2.x, d2.y); + *angle_out = SW_FT_Atan2(d3.x, d3.y); + } + } + } + + theta1 = ft_pos_abs(SW_FT_Angle_Diff(*angle_in, *angle_mid)); + theta2 = ft_pos_abs(SW_FT_Angle_Diff(*angle_mid, *angle_out)); + + return SW_FT_BOOL(theta1 < SW_FT_SMALL_CUBIC_THRESHOLD && + theta2 < SW_FT_SMALL_CUBIC_THRESHOLD); +} + +/*************************************************************************/ +/*************************************************************************/ +/***** *****/ +/***** STROKE BORDERS *****/ +/***** *****/ +/*************************************************************************/ +/*************************************************************************/ + +typedef enum SW_FT_StrokeTags_ { + SW_FT_STROKE_TAG_ON = 1, /* on-curve point */ + SW_FT_STROKE_TAG_CUBIC = 2, /* cubic off-point */ + SW_FT_STROKE_TAG_BEGIN = 4, /* sub-path start */ + SW_FT_STROKE_TAG_END = 8 /* sub-path end */ + +} SW_FT_StrokeTags; + +#define SW_FT_STROKE_TAG_BEGIN_END \ + (SW_FT_STROKE_TAG_BEGIN | SW_FT_STROKE_TAG_END) + +typedef struct SW_FT_StrokeBorderRec_ { + SW_FT_UInt num_points; + SW_FT_UInt max_points; + SW_FT_Vector* points; + SW_FT_Byte* tags; + SW_FT_Bool movable; /* TRUE for ends of lineto borders */ + SW_FT_Int start; /* index of current sub-path start point */ + SW_FT_Bool valid; + +} SW_FT_StrokeBorderRec, *SW_FT_StrokeBorder; + +SW_FT_Error SW_FT_Outline_Check(SW_FT_Outline* outline) +{ + if (outline) { + SW_FT_Int n_points = outline->n_points; + SW_FT_Int n_contours = outline->n_contours; + SW_FT_Int end0, end; + SW_FT_Int n; + + /* empty glyph? */ + if (n_points == 0 && n_contours == 0) return 0; + + /* check point and contour counts */ + if (n_points <= 0 || n_contours <= 0) goto Bad; + + end0 = end = -1; + for (n = 0; n < n_contours; n++) { + end = outline->contours[n]; + + /* note that we don't accept empty contours */ + if (end <= end0 || end >= n_points) goto Bad; + + end0 = end; + } + + if (end != n_points - 1) goto Bad; + + /* XXX: check the tags array */ + return 0; + } + +Bad: + return -1; // SW_FT_THROW( Invalid_Argument ); +} + +void SW_FT_Outline_Get_CBox(const SW_FT_Outline* outline, SW_FT_BBox* acbox) +{ + SW_FT_Pos xMin, yMin, xMax, yMax; + + if (outline && acbox) { + if (outline->n_points == 0) { + xMin = 0; + yMin = 0; + xMax = 0; + yMax = 0; + } else { + SW_FT_Vector* vec = outline->points; + SW_FT_Vector* limit = vec + outline->n_points; + + xMin = xMax = vec->x; + yMin = yMax = vec->y; + vec++; + + for (; vec < limit; vec++) { + SW_FT_Pos x, y; + + x = vec->x; + if (x < xMin) xMin = x; + if (x > xMax) xMax = x; + + y = vec->y; + if (y < yMin) yMin = y; + if (y > yMax) yMax = y; + } + } + acbox->xMin = xMin; + acbox->xMax = xMax; + acbox->yMin = yMin; + acbox->yMax = yMax; + } +} + +static SW_FT_Error ft_stroke_border_grow(SW_FT_StrokeBorder border, + SW_FT_UInt new_points) +{ + SW_FT_UInt old_max = border->max_points; + SW_FT_UInt new_max = border->num_points + new_points; + SW_FT_Error error = 0; + + if (new_max > old_max) { + SW_FT_UInt cur_max = old_max; + + while (cur_max < new_max) cur_max += (cur_max >> 1) + 16; + + border->points = (SW_FT_Vector*)realloc(border->points, + cur_max * sizeof(SW_FT_Vector)); + border->tags = + (SW_FT_Byte*)realloc(border->tags, cur_max * sizeof(SW_FT_Byte)); + + if (!border->points || !border->tags) goto Exit; + + border->max_points = cur_max; + } + +Exit: + return error; +} + +static void ft_stroke_border_close(SW_FT_StrokeBorder border, + SW_FT_Bool reverse) +{ + SW_FT_UInt start = border->start; + SW_FT_UInt count = border->num_points; + + assert(border->start >= 0); + + /* don't record empty paths! */ + if (count <= start + 1U) + border->num_points = start; + else { + /* copy the last point to the start of this sub-path, since */ + /* it contains the `adjusted' starting coordinates */ + border->num_points = --count; + border->points[start] = border->points[count]; + + if (reverse) { + /* reverse the points */ + { + SW_FT_Vector* vec1 = border->points + start + 1; + SW_FT_Vector* vec2 = border->points + count - 1; + + for (; vec1 < vec2; vec1++, vec2--) { + SW_FT_Vector tmp; + + tmp = *vec1; + *vec1 = *vec2; + *vec2 = tmp; + } + } + + /* then the tags */ + { + SW_FT_Byte* tag1 = border->tags + start + 1; + SW_FT_Byte* tag2 = border->tags + count - 1; + + for (; tag1 < tag2; tag1++, tag2--) { + SW_FT_Byte tmp; + + tmp = *tag1; + *tag1 = *tag2; + *tag2 = tmp; + } + } + } + + border->tags[start] |= SW_FT_STROKE_TAG_BEGIN; + border->tags[count - 1] |= SW_FT_STROKE_TAG_END; + } + + border->start = -1; + border->movable = FALSE; +} + +static SW_FT_Error ft_stroke_border_lineto(SW_FT_StrokeBorder border, + SW_FT_Vector* to, SW_FT_Bool movable) +{ + SW_FT_Error error = 0; + + assert(border->start >= 0); + + if (border->movable) { + /* move last point */ + border->points[border->num_points - 1] = *to; + } else { + /* don't add zero-length lineto */ + if (border->num_points > 0 && + SW_FT_IS_SMALL(border->points[border->num_points - 1].x - to->x) && + SW_FT_IS_SMALL(border->points[border->num_points - 1].y - to->y)) + return error; + + /* add one point */ + error = ft_stroke_border_grow(border, 1); + if (!error) { + SW_FT_Vector* vec = border->points + border->num_points; + SW_FT_Byte* tag = border->tags + border->num_points; + + vec[0] = *to; + tag[0] = SW_FT_STROKE_TAG_ON; + + border->num_points += 1; + } + } + border->movable = movable; + return error; +} + +static SW_FT_Error ft_stroke_border_conicto(SW_FT_StrokeBorder border, + SW_FT_Vector* control, + SW_FT_Vector* to) +{ + SW_FT_Error error; + + assert(border->start >= 0); + + error = ft_stroke_border_grow(border, 2); + if (!error) { + SW_FT_Vector* vec = border->points + border->num_points; + SW_FT_Byte* tag = border->tags + border->num_points; + + vec[0] = *control; + vec[1] = *to; + + tag[0] = 0; + tag[1] = SW_FT_STROKE_TAG_ON; + + border->num_points += 2; + } + + border->movable = FALSE; + + return error; +} + +static SW_FT_Error ft_stroke_border_cubicto(SW_FT_StrokeBorder border, + SW_FT_Vector* control1, + SW_FT_Vector* control2, + SW_FT_Vector* to) +{ + SW_FT_Error error; + + assert(border->start >= 0); + + error = ft_stroke_border_grow(border, 3); + if (!error) { + SW_FT_Vector* vec = border->points + border->num_points; + SW_FT_Byte* tag = border->tags + border->num_points; + + vec[0] = *control1; + vec[1] = *control2; + vec[2] = *to; + + tag[0] = SW_FT_STROKE_TAG_CUBIC; + tag[1] = SW_FT_STROKE_TAG_CUBIC; + tag[2] = SW_FT_STROKE_TAG_ON; + + border->num_points += 3; + } + + border->movable = FALSE; + + return error; +} + +#define SW_FT_ARC_CUBIC_ANGLE (SW_FT_ANGLE_PI / 2) + + +static SW_FT_Error +ft_stroke_border_arcto( SW_FT_StrokeBorder border, + SW_FT_Vector* center, + SW_FT_Fixed radius, + SW_FT_Angle angle_start, + SW_FT_Angle angle_diff ) +{ + SW_FT_Fixed coef; + SW_FT_Vector a0, a1, a2, a3; + SW_FT_Int i, arcs = 1; + SW_FT_Error error = 0; + + + /* number of cubic arcs to draw */ + while ( angle_diff > SW_FT_ARC_CUBIC_ANGLE * arcs || + -angle_diff > SW_FT_ARC_CUBIC_ANGLE * arcs ) + arcs++; + + /* control tangents */ + coef = SW_FT_Tan( angle_diff / ( 4 * arcs ) ); + coef += coef / 3; + + /* compute start and first control point */ + SW_FT_Vector_From_Polar( &a0, radius, angle_start ); + a1.x = SW_FT_MulFix( -a0.y, coef ); + a1.y = SW_FT_MulFix( a0.x, coef ); + + a0.x += center->x; + a0.y += center->y; + a1.x += a0.x; + a1.y += a0.y; + + for ( i = 1; i <= arcs; i++ ) + { + /* compute end and second control point */ + SW_FT_Vector_From_Polar( &a3, radius, + angle_start + i * angle_diff / arcs ); + a2.x = SW_FT_MulFix( a3.y, coef ); + a2.y = SW_FT_MulFix( -a3.x, coef ); + + a3.x += center->x; + a3.y += center->y; + a2.x += a3.x; + a2.y += a3.y; + + /* add cubic arc */ + error = ft_stroke_border_cubicto( border, &a1, &a2, &a3 ); + if ( error ) + break; + + /* a0 = a3; */ + a1.x = a3.x - a2.x + a3.x; + a1.y = a3.y - a2.y + a3.y; + } + + return error; +} + +static SW_FT_Error ft_stroke_border_moveto(SW_FT_StrokeBorder border, + SW_FT_Vector* to) +{ + /* close current open path if any ? */ + if (border->start >= 0) ft_stroke_border_close(border, FALSE); + + border->start = border->num_points; + border->movable = FALSE; + + return ft_stroke_border_lineto(border, to, FALSE); +} + +static void ft_stroke_border_init(SW_FT_StrokeBorder border) +{ + border->points = NULL; + border->tags = NULL; + + border->num_points = 0; + border->max_points = 0; + border->start = -1; + border->valid = FALSE; +} + +static void ft_stroke_border_reset(SW_FT_StrokeBorder border) +{ + border->num_points = 0; + border->start = -1; + border->valid = FALSE; +} + +static void ft_stroke_border_done(SW_FT_StrokeBorder border) +{ + free(border->points); + free(border->tags); + + border->num_points = 0; + border->max_points = 0; + border->start = -1; + border->valid = FALSE; +} + +static SW_FT_Error ft_stroke_border_get_counts(SW_FT_StrokeBorder border, + SW_FT_UInt* anum_points, + SW_FT_UInt* anum_contours) +{ + SW_FT_Error error = 0; + SW_FT_UInt num_points = 0; + SW_FT_UInt num_contours = 0; + + SW_FT_UInt count = border->num_points; + SW_FT_Vector* point = border->points; + SW_FT_Byte* tags = border->tags; + SW_FT_Int in_contour = 0; + + for (; count > 0; count--, num_points++, point++, tags++) { + if (tags[0] & SW_FT_STROKE_TAG_BEGIN) { + if (in_contour != 0) goto Fail; + + in_contour = 1; + } else if (in_contour == 0) + goto Fail; + + if (tags[0] & SW_FT_STROKE_TAG_END) { + in_contour = 0; + num_contours++; + } + } + + if (in_contour != 0) goto Fail; + + border->valid = TRUE; + +Exit: + *anum_points = num_points; + *anum_contours = num_contours; + return error; + +Fail: + num_points = 0; + num_contours = 0; + goto Exit; +} + +static void ft_stroke_border_export(SW_FT_StrokeBorder border, + SW_FT_Outline* outline) +{ + /* copy point locations */ + memcpy(outline->points + outline->n_points, border->points, + border->num_points * sizeof(SW_FT_Vector)); + + /* copy tags */ + { + SW_FT_UInt count = border->num_points; + SW_FT_Byte* read = border->tags; + SW_FT_Byte* write = (SW_FT_Byte*)outline->tags + outline->n_points; + + for (; count > 0; count--, read++, write++) { + if (*read & SW_FT_STROKE_TAG_ON) + *write = SW_FT_CURVE_TAG_ON; + else if (*read & SW_FT_STROKE_TAG_CUBIC) + *write = SW_FT_CURVE_TAG_CUBIC; + else + *write = SW_FT_CURVE_TAG_CONIC; + } + } + + /* copy contours */ + { + SW_FT_UInt count = border->num_points; + SW_FT_Byte* tags = border->tags; + SW_FT_Short* write = outline->contours + outline->n_contours; + SW_FT_Short idx = (SW_FT_Short)outline->n_points; + + for (; count > 0; count--, tags++, idx++) { + if (*tags & SW_FT_STROKE_TAG_END) { + *write++ = idx; + outline->n_contours++; + } + } + } + + outline->n_points = (short)(outline->n_points + border->num_points); + + assert(SW_FT_Outline_Check(outline) == 0); +} + +/*************************************************************************/ +/*************************************************************************/ +/***** *****/ +/***** STROKER *****/ +/***** *****/ +/*************************************************************************/ +/*************************************************************************/ + +#define SW_FT_SIDE_TO_ROTATE(s) (SW_FT_ANGLE_PI2 - (s)*SW_FT_ANGLE_PI) + +typedef struct SW_FT_StrokerRec_ { + SW_FT_Angle angle_in; /* direction into curr join */ + SW_FT_Angle angle_out; /* direction out of join */ + SW_FT_Vector center; /* current position */ + SW_FT_Fixed line_length; /* length of last lineto */ + SW_FT_Bool first_point; /* is this the start? */ + SW_FT_Bool subpath_open; /* is the subpath open? */ + SW_FT_Angle subpath_angle; /* subpath start direction */ + SW_FT_Vector subpath_start; /* subpath start position */ + SW_FT_Fixed subpath_line_length; /* subpath start lineto len */ + SW_FT_Bool handle_wide_strokes; /* use wide strokes logic? */ + + SW_FT_Stroker_LineCap line_cap; + SW_FT_Stroker_LineJoin line_join; + SW_FT_Stroker_LineJoin line_join_saved; + SW_FT_Fixed miter_limit; + SW_FT_Fixed radius; + + SW_FT_StrokeBorderRec borders[2]; +} SW_FT_StrokerRec; + +/* documentation is in ftstroke.h */ + +SW_FT_Error SW_FT_Stroker_New(SW_FT_Stroker* astroker) +{ + SW_FT_Error error = 0; /* assigned in SW_FT_NEW */ + SW_FT_Stroker stroker = NULL; + + stroker = (SW_FT_StrokerRec*)calloc(1, sizeof(SW_FT_StrokerRec)); + if (stroker) { + ft_stroke_border_init(&stroker->borders[0]); + ft_stroke_border_init(&stroker->borders[1]); + } + + *astroker = stroker; + + return error; +} + +void SW_FT_Stroker_Rewind(SW_FT_Stroker stroker) +{ + if (stroker) { + ft_stroke_border_reset(&stroker->borders[0]); + ft_stroke_border_reset(&stroker->borders[1]); + } +} + +/* documentation is in ftstroke.h */ + +void SW_FT_Stroker_Set(SW_FT_Stroker stroker, SW_FT_Fixed radius, + SW_FT_Stroker_LineCap line_cap, + SW_FT_Stroker_LineJoin line_join, + SW_FT_Fixed miter_limit) +{ + stroker->radius = radius; + stroker->line_cap = line_cap; + stroker->line_join = line_join; + stroker->miter_limit = miter_limit; + + /* ensure miter limit has sensible value */ + if (stroker->miter_limit < 0x10000) stroker->miter_limit = 0x10000; + + /* save line join style: */ + /* line join style can be temporarily changed when stroking curves */ + stroker->line_join_saved = line_join; + + SW_FT_Stroker_Rewind(stroker); +} + +/* documentation is in ftstroke.h */ + +void SW_FT_Stroker_Done(SW_FT_Stroker stroker) +{ + if (stroker) { + ft_stroke_border_done(&stroker->borders[0]); + ft_stroke_border_done(&stroker->borders[1]); + + free(stroker); + } +} + +/* create a circular arc at a corner or cap */ +static SW_FT_Error ft_stroker_arcto(SW_FT_Stroker stroker, SW_FT_Int side) +{ + SW_FT_Angle total, rotate; + SW_FT_Fixed radius = stroker->radius; + SW_FT_Error error = 0; + SW_FT_StrokeBorder border = stroker->borders + side; + + rotate = SW_FT_SIDE_TO_ROTATE(side); + + total = SW_FT_Angle_Diff(stroker->angle_in, stroker->angle_out); + if (total == SW_FT_ANGLE_PI) total = -rotate * 2; + + error = ft_stroke_border_arcto(border, &stroker->center, radius, + stroker->angle_in + rotate, total); + border->movable = FALSE; + return error; +} + +/* add a cap at the end of an opened path */ +static SW_FT_Error +ft_stroker_cap(SW_FT_Stroker stroker, + SW_FT_Angle angle, + SW_FT_Int side) +{ + SW_FT_Error error = 0; + + if (stroker->line_cap == SW_FT_STROKER_LINECAP_ROUND) + { + /* add a round cap */ + stroker->angle_in = angle; + stroker->angle_out = angle + SW_FT_ANGLE_PI; + + error = ft_stroker_arcto(stroker, side); + } + else + { + /* add a square or butt cap */ + SW_FT_Vector middle, delta; + SW_FT_Fixed radius = stroker->radius; + SW_FT_StrokeBorder border = stroker->borders + side; + + /* compute middle point and first angle point */ + SW_FT_Vector_From_Polar( &middle, radius, angle ); + delta.x = side ? middle.y : -middle.y; + delta.y = side ? -middle.x : middle.x; + + if ( stroker->line_cap == SW_FT_STROKER_LINECAP_SQUARE ) + { + middle.x += stroker->center.x; + middle.y += stroker->center.y; + } + else /* SW_FT_STROKER_LINECAP_BUTT */ + { + middle.x = stroker->center.x; + middle.y = stroker->center.y; + } + + delta.x += middle.x; + delta.y += middle.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* compute second angle point */ + delta.x = middle.x - delta.x + middle.x; + delta.y = middle.y - delta.y + middle.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + +Exit: + return error; +} + +/* process an inside corner, i.e. compute intersection */ +static SW_FT_Error ft_stroker_inside(SW_FT_Stroker stroker, SW_FT_Int side, + SW_FT_Fixed line_length) +{ + SW_FT_StrokeBorder border = stroker->borders + side; + SW_FT_Angle phi, theta, rotate; + SW_FT_Fixed length; + SW_FT_Vector sigma, delta; + SW_FT_Error error = 0; + SW_FT_Bool intersect; /* use intersection of lines? */ + + rotate = SW_FT_SIDE_TO_ROTATE(side); + + theta = SW_FT_Angle_Diff(stroker->angle_in, stroker->angle_out) / 2; + + /* Only intersect borders if between two lineto's and both */ + /* lines are long enough (line_length is zero for curves). */ + if (!border->movable || line_length == 0 || + theta > 0x59C000 || theta < -0x59C000 ) + intersect = FALSE; + else { + /* compute minimum required length of lines */ + SW_FT_Fixed min_length; + + + SW_FT_Vector_Unit( &sigma, theta ); + min_length = + ft_pos_abs( SW_FT_MulDiv( stroker->radius, sigma.y, sigma.x ) ); + + intersect = SW_FT_BOOL( min_length && + stroker->line_length >= min_length && + line_length >= min_length ); + } + + if (!intersect) { + SW_FT_Vector_From_Polar(&delta, stroker->radius, + stroker->angle_out + rotate); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + border->movable = FALSE; + } else { + /* compute median angle */ + phi = stroker->angle_in + theta + rotate; + + length = SW_FT_DivFix( stroker->radius, sigma.x ); + + SW_FT_Vector_From_Polar( &delta, length, phi ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + } + + error = ft_stroke_border_lineto(border, &delta, FALSE); + + return error; +} + + /* process an outside corner, i.e. compute bevel/miter/round */ +static SW_FT_Error +ft_stroker_outside( SW_FT_Stroker stroker, + SW_FT_Int side, + SW_FT_Fixed line_length ) +{ + SW_FT_StrokeBorder border = stroker->borders + side; + SW_FT_Error error; + SW_FT_Angle rotate; + + + if ( stroker->line_join == SW_FT_STROKER_LINEJOIN_ROUND ) + error = ft_stroker_arcto( stroker, side ); + else + { + /* this is a mitered (pointed) or beveled (truncated) corner */ + SW_FT_Fixed radius = stroker->radius; + SW_FT_Vector sigma; + SW_FT_Angle theta = 0, phi = 0; + SW_FT_Bool bevel, fixed_bevel; + + + rotate = SW_FT_SIDE_TO_ROTATE( side ); + + bevel = + SW_FT_BOOL( stroker->line_join == SW_FT_STROKER_LINEJOIN_BEVEL ); + + fixed_bevel = + SW_FT_BOOL( stroker->line_join != SW_FT_STROKER_LINEJOIN_MITER_VARIABLE ); + + /* check miter limit first */ + if ( !bevel ) + { + theta = SW_FT_Angle_Diff( stroker->angle_in, stroker->angle_out ) / 2; + + if ( theta == SW_FT_ANGLE_PI2 ) + theta = -rotate; + + phi = stroker->angle_in + theta + rotate; + + SW_FT_Vector_From_Polar( &sigma, stroker->miter_limit, theta ); + + /* is miter limit exceeded? */ + if ( sigma.x < 0x10000L ) + { + /* don't create variable bevels for very small deviations; */ + /* FT_Sin(x) = 0 for x <= 57 */ + if ( fixed_bevel || ft_pos_abs( theta ) > 57 ) + bevel = TRUE; + } + } + + if ( bevel ) /* this is a bevel (broken angle) */ + { + if ( fixed_bevel ) + { + /* the outer corners are simply joined together */ + SW_FT_Vector delta; + + + /* add bevel */ + SW_FT_Vector_From_Polar( &delta, + radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + border->movable = FALSE; + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + else /* variable bevel or clipped miter */ + { + /* the miter is truncated */ + SW_FT_Vector middle, delta; + SW_FT_Fixed coef; + + + /* compute middle point and first angle point */ + SW_FT_Vector_From_Polar( &middle, + SW_FT_MulFix( radius, stroker->miter_limit ), + phi ); + + coef = SW_FT_DivFix( 0x10000L - sigma.x, sigma.y ); + delta.x = SW_FT_MulFix( middle.y, coef ); + delta.y = SW_FT_MulFix( -middle.x, coef ); + + middle.x += stroker->center.x; + middle.y += stroker->center.y; + delta.x += middle.x; + delta.y += middle.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* compute second angle point */ + delta.x = middle.x - delta.x + middle.x; + delta.y = middle.y - delta.y + middle.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* finally, add an end point; only needed if not lineto */ + /* (line_length is zero for curves) */ + if ( line_length == 0 ) + { + SW_FT_Vector_From_Polar( &delta, + radius, + stroker->angle_out + rotate ); + + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + } + } + else /* this is a miter (intersection) */ + { + SW_FT_Fixed length; + SW_FT_Vector delta; + + + length = SW_FT_MulDiv( stroker->radius, stroker->miter_limit, sigma.x ); + + SW_FT_Vector_From_Polar( &delta, length, phi ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* now add an end point; only needed if not lineto */ + /* (line_length is zero for curves) */ + if ( line_length == 0 ) + { + SW_FT_Vector_From_Polar( &delta, + stroker->radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + } + } + + Exit: + return error; +} + +static SW_FT_Error ft_stroker_process_corner(SW_FT_Stroker stroker, + SW_FT_Fixed line_length) +{ + SW_FT_Error error = 0; + SW_FT_Angle turn; + SW_FT_Int inside_side; + + turn = SW_FT_Angle_Diff(stroker->angle_in, stroker->angle_out); + + /* no specific corner processing is required if the turn is 0 */ + if (turn == 0) goto Exit; + + /* when we turn to the right, the inside side is 0 */ + inside_side = 0; + + /* otherwise, the inside side is 1 */ + if (turn < 0) inside_side = 1; + + /* process the inside side */ + error = ft_stroker_inside(stroker, inside_side, line_length); + if (error) goto Exit; + + /* process the outside side */ + error = ft_stroker_outside(stroker, 1 - inside_side, line_length); + +Exit: + return error; +} + +/* add two points to the left and right borders corresponding to the */ +/* start of the subpath */ +static SW_FT_Error ft_stroker_subpath_start(SW_FT_Stroker stroker, + SW_FT_Angle start_angle, + SW_FT_Fixed line_length) +{ + SW_FT_Vector delta; + SW_FT_Vector point; + SW_FT_Error error; + SW_FT_StrokeBorder border; + + SW_FT_Vector_From_Polar(&delta, stroker->radius, + start_angle + SW_FT_ANGLE_PI2); + + point.x = stroker->center.x + delta.x; + point.y = stroker->center.y + delta.y; + + border = stroker->borders; + error = ft_stroke_border_moveto(border, &point); + if (error) goto Exit; + + point.x = stroker->center.x - delta.x; + point.y = stroker->center.y - delta.y; + + border++; + error = ft_stroke_border_moveto(border, &point); + + /* save angle, position, and line length for last join */ + /* (line_length is zero for curves) */ + stroker->subpath_angle = start_angle; + stroker->first_point = FALSE; + stroker->subpath_line_length = line_length; + +Exit: + return error; +} + +/* documentation is in ftstroke.h */ + +SW_FT_Error SW_FT_Stroker_LineTo(SW_FT_Stroker stroker, SW_FT_Vector* to) +{ + SW_FT_Error error = 0; + SW_FT_StrokeBorder border; + SW_FT_Vector delta; + SW_FT_Angle angle; + SW_FT_Int side; + SW_FT_Fixed line_length; + + delta.x = to->x - stroker->center.x; + delta.y = to->y - stroker->center.y; + + /* a zero-length lineto is a no-op; avoid creating a spurious corner */ + if (delta.x == 0 && delta.y == 0) goto Exit; + + /* compute length of line */ + line_length = SW_FT_Vector_Length(&delta); + + angle = SW_FT_Atan2(delta.x, delta.y); + SW_FT_Vector_From_Polar(&delta, stroker->radius, angle + SW_FT_ANGLE_PI2); + + /* process corner if necessary */ + if (stroker->first_point) { + /* This is the first segment of a subpath. We need to */ + /* add a point to each border at their respective starting */ + /* point locations. */ + error = ft_stroker_subpath_start(stroker, angle, line_length); + if (error) goto Exit; + } else { + /* process the current corner */ + stroker->angle_out = angle; + error = ft_stroker_process_corner(stroker, line_length); + if (error) goto Exit; + } + + /* now add a line segment to both the `inside' and `outside' paths */ + for (border = stroker->borders, side = 1; side >= 0; side--, border++) { + SW_FT_Vector point; + + point.x = to->x + delta.x; + point.y = to->y + delta.y; + + /* the ends of lineto borders are movable */ + error = ft_stroke_border_lineto(border, &point, TRUE); + if (error) goto Exit; + + delta.x = -delta.x; + delta.y = -delta.y; + } + + stroker->angle_in = angle; + stroker->center = *to; + stroker->line_length = line_length; + +Exit: + return error; +} + +/* documentation is in ftstroke.h */ + +SW_FT_Error SW_FT_Stroker_ConicTo(SW_FT_Stroker stroker, SW_FT_Vector* control, + SW_FT_Vector* to) +{ + SW_FT_Error error = 0; + SW_FT_Vector bez_stack[34]; + SW_FT_Vector* arc; + SW_FT_Vector* limit = bez_stack + 30; + SW_FT_Bool first_arc = TRUE; + + /* if all control points are coincident, this is a no-op; */ + /* avoid creating a spurious corner */ + if (SW_FT_IS_SMALL(stroker->center.x - control->x) && + SW_FT_IS_SMALL(stroker->center.y - control->y) && + SW_FT_IS_SMALL(control->x - to->x) && + SW_FT_IS_SMALL(control->y - to->y)) { + stroker->center = *to; + goto Exit; + } + + arc = bez_stack; + arc[0] = *to; + arc[1] = *control; + arc[2] = stroker->center; + + while (arc >= bez_stack) { + SW_FT_Angle angle_in, angle_out; + + /* initialize with current direction */ + angle_in = angle_out = stroker->angle_in; + + if (arc < limit && + !ft_conic_is_small_enough(arc, &angle_in, &angle_out)) { + if (stroker->first_point) stroker->angle_in = angle_in; + + ft_conic_split(arc); + arc += 2; + continue; + } + + if (first_arc) { + first_arc = FALSE; + + /* process corner if necessary */ + if (stroker->first_point) + error = ft_stroker_subpath_start(stroker, angle_in, 0); + else { + stroker->angle_out = angle_in; + error = ft_stroker_process_corner(stroker, 0); + } + } else if (ft_pos_abs(SW_FT_Angle_Diff(stroker->angle_in, angle_in)) > + SW_FT_SMALL_CONIC_THRESHOLD / 4) { + /* if the deviation from one arc to the next is too great, */ + /* add a round corner */ + stroker->center = arc[2]; + stroker->angle_out = angle_in; + stroker->line_join = SW_FT_STROKER_LINEJOIN_ROUND; + + error = ft_stroker_process_corner(stroker, 0); + + /* reinstate line join style */ + stroker->line_join = stroker->line_join_saved; + } + + if (error) goto Exit; + + /* the arc's angle is small enough; we can add it directly to each */ + /* border */ + { + SW_FT_Vector ctrl, end; + SW_FT_Angle theta, phi, rotate, alpha0 = 0; + SW_FT_Fixed length; + SW_FT_StrokeBorder border; + SW_FT_Int side; + + theta = SW_FT_Angle_Diff(angle_in, angle_out) / 2; + phi = angle_in + theta; + length = SW_FT_DivFix(stroker->radius, SW_FT_Cos(theta)); + + /* compute direction of original arc */ + if (stroker->handle_wide_strokes) + alpha0 = SW_FT_Atan2(arc[0].x - arc[2].x, arc[0].y - arc[2].y); + + for (border = stroker->borders, side = 0; side <= 1; + side++, border++) { + rotate = SW_FT_SIDE_TO_ROTATE(side); + + /* compute control point */ + SW_FT_Vector_From_Polar(&ctrl, length, phi + rotate); + ctrl.x += arc[1].x; + ctrl.y += arc[1].y; + + /* compute end point */ + SW_FT_Vector_From_Polar(&end, stroker->radius, + angle_out + rotate); + end.x += arc[0].x; + end.y += arc[0].y; + + if (stroker->handle_wide_strokes) { + SW_FT_Vector start; + SW_FT_Angle alpha1; + + /* determine whether the border radius is greater than the + */ + /* radius of curvature of the original arc */ + start = border->points[border->num_points - 1]; + + alpha1 = SW_FT_Atan2(end.x - start.x, end.y - start.y); + + /* is the direction of the border arc opposite to */ + /* that of the original arc? */ + if (ft_pos_abs(SW_FT_Angle_Diff(alpha0, alpha1)) > + SW_FT_ANGLE_PI / 2) { + SW_FT_Angle beta, gamma; + SW_FT_Vector bvec, delta; + SW_FT_Fixed blen, sinA, sinB, alen; + + /* use the sine rule to find the intersection point */ + beta = + SW_FT_Atan2(arc[2].x - start.x, arc[2].y - start.y); + gamma = SW_FT_Atan2(arc[0].x - end.x, arc[0].y - end.y); + + bvec.x = end.x - start.x; + bvec.y = end.y - start.y; + + blen = SW_FT_Vector_Length(&bvec); + + sinA = ft_pos_abs(SW_FT_Sin(alpha1 - gamma)); + sinB = ft_pos_abs(SW_FT_Sin(beta - gamma)); + + alen = SW_FT_MulDiv(blen, sinA, sinB); + + SW_FT_Vector_From_Polar(&delta, alen, beta); + delta.x += start.x; + delta.y += start.y; + + /* circumnavigate the negative sector backwards */ + border->movable = FALSE; + error = ft_stroke_border_lineto(border, &delta, FALSE); + if (error) goto Exit; + error = ft_stroke_border_lineto(border, &end, FALSE); + if (error) goto Exit; + error = ft_stroke_border_conicto(border, &ctrl, &start); + if (error) goto Exit; + /* and then move to the endpoint */ + error = ft_stroke_border_lineto(border, &end, FALSE); + if (error) goto Exit; + + continue; + } + + /* else fall through */ + } + + /* simply add an arc */ + error = ft_stroke_border_conicto(border, &ctrl, &end); + if (error) goto Exit; + } + } + + arc -= 2; + + stroker->angle_in = angle_out; + } + + stroker->center = *to; + +Exit: + return error; +} + +/* documentation is in ftstroke.h */ + +SW_FT_Error SW_FT_Stroker_CubicTo(SW_FT_Stroker stroker, SW_FT_Vector* control1, + SW_FT_Vector* control2, SW_FT_Vector* to) +{ + SW_FT_Error error = 0; + SW_FT_Vector bez_stack[37]; + SW_FT_Vector* arc; + SW_FT_Vector* limit = bez_stack + 32; + SW_FT_Bool first_arc = TRUE; + + /* if all control points are coincident, this is a no-op; */ + /* avoid creating a spurious corner */ + if (SW_FT_IS_SMALL(stroker->center.x - control1->x) && + SW_FT_IS_SMALL(stroker->center.y - control1->y) && + SW_FT_IS_SMALL(control1->x - control2->x) && + SW_FT_IS_SMALL(control1->y - control2->y) && + SW_FT_IS_SMALL(control2->x - to->x) && + SW_FT_IS_SMALL(control2->y - to->y)) { + stroker->center = *to; + goto Exit; + } + + arc = bez_stack; + arc[0] = *to; + arc[1] = *control2; + arc[2] = *control1; + arc[3] = stroker->center; + + while (arc >= bez_stack) { + SW_FT_Angle angle_in, angle_mid, angle_out; + + /* initialize with current direction */ + angle_in = angle_out = angle_mid = stroker->angle_in; + + if (arc < limit && + !ft_cubic_is_small_enough(arc, &angle_in, &angle_mid, &angle_out)) { + if (stroker->first_point) stroker->angle_in = angle_in; + + ft_cubic_split(arc); + arc += 3; + continue; + } + + if (first_arc) { + first_arc = FALSE; + + /* process corner if necessary */ + if (stroker->first_point) + error = ft_stroker_subpath_start(stroker, angle_in, 0); + else { + stroker->angle_out = angle_in; + error = ft_stroker_process_corner(stroker, 0); + } + } else if (ft_pos_abs(SW_FT_Angle_Diff(stroker->angle_in, angle_in)) > + SW_FT_SMALL_CUBIC_THRESHOLD / 4) { + /* if the deviation from one arc to the next is too great, */ + /* add a round corner */ + stroker->center = arc[3]; + stroker->angle_out = angle_in; + stroker->line_join = SW_FT_STROKER_LINEJOIN_ROUND; + + error = ft_stroker_process_corner(stroker, 0); + + /* reinstate line join style */ + stroker->line_join = stroker->line_join_saved; + } + + if (error) goto Exit; + + /* the arc's angle is small enough; we can add it directly to each */ + /* border */ + { + SW_FT_Vector ctrl1, ctrl2, end; + SW_FT_Angle theta1, phi1, theta2, phi2, rotate, alpha0 = 0; + SW_FT_Fixed length1, length2; + SW_FT_StrokeBorder border; + SW_FT_Int side; + + theta1 = SW_FT_Angle_Diff(angle_in, angle_mid) / 2; + theta2 = SW_FT_Angle_Diff(angle_mid, angle_out) / 2; + phi1 = ft_angle_mean(angle_in, angle_mid); + phi2 = ft_angle_mean(angle_mid, angle_out); + length1 = SW_FT_DivFix(stroker->radius, SW_FT_Cos(theta1)); + length2 = SW_FT_DivFix(stroker->radius, SW_FT_Cos(theta2)); + + /* compute direction of original arc */ + if (stroker->handle_wide_strokes) + alpha0 = SW_FT_Atan2(arc[0].x - arc[3].x, arc[0].y - arc[3].y); + + for (border = stroker->borders, side = 0; side <= 1; + side++, border++) { + rotate = SW_FT_SIDE_TO_ROTATE(side); + + /* compute control points */ + SW_FT_Vector_From_Polar(&ctrl1, length1, phi1 + rotate); + ctrl1.x += arc[2].x; + ctrl1.y += arc[2].y; + + SW_FT_Vector_From_Polar(&ctrl2, length2, phi2 + rotate); + ctrl2.x += arc[1].x; + ctrl2.y += arc[1].y; + + /* compute end point */ + SW_FT_Vector_From_Polar(&end, stroker->radius, + angle_out + rotate); + end.x += arc[0].x; + end.y += arc[0].y; + + if (stroker->handle_wide_strokes) { + SW_FT_Vector start; + SW_FT_Angle alpha1; + + /* determine whether the border radius is greater than the + */ + /* radius of curvature of the original arc */ + start = border->points[border->num_points - 1]; + + alpha1 = SW_FT_Atan2(end.x - start.x, end.y - start.y); + + /* is the direction of the border arc opposite to */ + /* that of the original arc? */ + if (ft_pos_abs(SW_FT_Angle_Diff(alpha0, alpha1)) > + SW_FT_ANGLE_PI / 2) { + SW_FT_Angle beta, gamma; + SW_FT_Vector bvec, delta; + SW_FT_Fixed blen, sinA, sinB, alen; + + /* use the sine rule to find the intersection point */ + beta = + SW_FT_Atan2(arc[3].x - start.x, arc[3].y - start.y); + gamma = SW_FT_Atan2(arc[0].x - end.x, arc[0].y - end.y); + + bvec.x = end.x - start.x; + bvec.y = end.y - start.y; + + blen = SW_FT_Vector_Length(&bvec); + + sinA = ft_pos_abs(SW_FT_Sin(alpha1 - gamma)); + sinB = ft_pos_abs(SW_FT_Sin(beta - gamma)); + + alen = SW_FT_MulDiv(blen, sinA, sinB); + + SW_FT_Vector_From_Polar(&delta, alen, beta); + delta.x += start.x; + delta.y += start.y; + + /* circumnavigate the negative sector backwards */ + border->movable = FALSE; + error = ft_stroke_border_lineto(border, &delta, FALSE); + if (error) goto Exit; + error = ft_stroke_border_lineto(border, &end, FALSE); + if (error) goto Exit; + error = ft_stroke_border_cubicto(border, &ctrl2, &ctrl1, + &start); + if (error) goto Exit; + /* and then move to the endpoint */ + error = ft_stroke_border_lineto(border, &end, FALSE); + if (error) goto Exit; + + continue; + } + + /* else fall through */ + } + + /* simply add an arc */ + error = ft_stroke_border_cubicto(border, &ctrl1, &ctrl2, &end); + if (error) goto Exit; + } + } + + arc -= 3; + + stroker->angle_in = angle_out; + } + + stroker->center = *to; + +Exit: + return error; +} + +/* documentation is in ftstroke.h */ + +SW_FT_Error SW_FT_Stroker_BeginSubPath(SW_FT_Stroker stroker, SW_FT_Vector* to, + SW_FT_Bool open) +{ + /* We cannot process the first point, because there is not enough */ + /* information regarding its corner/cap. The latter will be processed */ + /* in the `SW_FT_Stroker_EndSubPath' routine. */ + /* */ + stroker->first_point = TRUE; + stroker->center = *to; + stroker->subpath_open = open; + + /* Determine if we need to check whether the border radius is greater */ + /* than the radius of curvature of a curve, to handle this case */ + /* specially. This is only required if bevel joins or butt caps may */ + /* be created, because round & miter joins and round & square caps */ + /* cover the negative sector created with wide strokes. */ + stroker->handle_wide_strokes = + SW_FT_BOOL(stroker->line_join != SW_FT_STROKER_LINEJOIN_ROUND || + (stroker->subpath_open && + stroker->line_cap == SW_FT_STROKER_LINECAP_BUTT)); + + /* record the subpath start point for each border */ + stroker->subpath_start = *to; + + stroker->angle_in = 0; + + return 0; +} + +static SW_FT_Error ft_stroker_add_reverse_left(SW_FT_Stroker stroker, + SW_FT_Bool open) +{ + SW_FT_StrokeBorder right = stroker->borders + 0; + SW_FT_StrokeBorder left = stroker->borders + 1; + SW_FT_Int new_points; + SW_FT_Error error = 0; + + assert(left->start >= 0); + + new_points = left->num_points - left->start; + if (new_points > 0) { + error = ft_stroke_border_grow(right, (SW_FT_UInt)new_points); + if (error) goto Exit; + + { + SW_FT_Vector* dst_point = right->points + right->num_points; + SW_FT_Byte* dst_tag = right->tags + right->num_points; + SW_FT_Vector* src_point = left->points + left->num_points - 1; + SW_FT_Byte* src_tag = left->tags + left->num_points - 1; + + while (src_point >= left->points + left->start) { + *dst_point = *src_point; + *dst_tag = *src_tag; + + if (open) + dst_tag[0] &= ~SW_FT_STROKE_TAG_BEGIN_END; + else { + SW_FT_Byte ttag = + (SW_FT_Byte)(dst_tag[0] & SW_FT_STROKE_TAG_BEGIN_END); + + /* switch begin/end tags if necessary */ + if (ttag == SW_FT_STROKE_TAG_BEGIN || + ttag == SW_FT_STROKE_TAG_END) + dst_tag[0] ^= SW_FT_STROKE_TAG_BEGIN_END; + } + + src_point--; + src_tag--; + dst_point++; + dst_tag++; + } + } + + left->num_points = left->start; + right->num_points += new_points; + + right->movable = FALSE; + left->movable = FALSE; + } + +Exit: + return error; +} + +/* documentation is in ftstroke.h */ + +/* there's a lot of magic in this function! */ +SW_FT_Error SW_FT_Stroker_EndSubPath(SW_FT_Stroker stroker) +{ + SW_FT_Error error = 0; + + if (stroker->subpath_open) { + SW_FT_StrokeBorder right = stroker->borders; + + /* All right, this is an opened path, we need to add a cap between */ + /* right & left, add the reverse of left, then add a final cap */ + /* between left & right. */ + error = ft_stroker_cap(stroker, stroker->angle_in, 0); + if (error) goto Exit; + + /* add reversed points from `left' to `right' */ + error = ft_stroker_add_reverse_left(stroker, TRUE); + if (error) goto Exit; + + /* now add the final cap */ + stroker->center = stroker->subpath_start; + error = + ft_stroker_cap(stroker, stroker->subpath_angle + SW_FT_ANGLE_PI, 0); + if (error) goto Exit; + + /* Now end the right subpath accordingly. The left one is */ + /* rewind and doesn't need further processing. */ + ft_stroke_border_close(right, FALSE); + } else { + SW_FT_Angle turn; + SW_FT_Int inside_side; + + /* close the path if needed */ + if (stroker->center.x != stroker->subpath_start.x || + stroker->center.y != stroker->subpath_start.y) { + error = SW_FT_Stroker_LineTo(stroker, &stroker->subpath_start); + if (error) goto Exit; + } + + /* process the corner */ + stroker->angle_out = stroker->subpath_angle; + turn = SW_FT_Angle_Diff(stroker->angle_in, stroker->angle_out); + + /* no specific corner processing is required if the turn is 0 */ + if (turn != 0) { + /* when we turn to the right, the inside side is 0 */ + inside_side = 0; + + /* otherwise, the inside side is 1 */ + if (turn < 0) inside_side = 1; + + error = ft_stroker_inside(stroker, inside_side, + stroker->subpath_line_length); + if (error) goto Exit; + + /* process the outside side */ + error = ft_stroker_outside(stroker, 1 - inside_side, + stroker->subpath_line_length); + if (error) goto Exit; + } + + /* then end our two subpaths */ + ft_stroke_border_close(stroker->borders + 0, FALSE); + ft_stroke_border_close(stroker->borders + 1, TRUE); + } + +Exit: + return error; +} + +/* documentation is in ftstroke.h */ + +SW_FT_Error SW_FT_Stroker_GetBorderCounts(SW_FT_Stroker stroker, + SW_FT_StrokerBorder border, + SW_FT_UInt* anum_points, + SW_FT_UInt* anum_contours) +{ + SW_FT_UInt num_points = 0, num_contours = 0; + SW_FT_Error error; + + if (!stroker || border > 1) { + error = -1; // SW_FT_THROW( Invalid_Argument ); + goto Exit; + } + + error = ft_stroke_border_get_counts(stroker->borders + border, &num_points, + &num_contours); +Exit: + if (anum_points) *anum_points = num_points; + + if (anum_contours) *anum_contours = num_contours; + + return error; +} + +/* documentation is in ftstroke.h */ + +SW_FT_Error SW_FT_Stroker_GetCounts(SW_FT_Stroker stroker, + SW_FT_UInt* anum_points, + SW_FT_UInt* anum_contours) +{ + SW_FT_UInt count1, count2, num_points = 0; + SW_FT_UInt count3, count4, num_contours = 0; + SW_FT_Error error; + + error = ft_stroke_border_get_counts(stroker->borders + 0, &count1, &count2); + if (error) goto Exit; + + error = ft_stroke_border_get_counts(stroker->borders + 1, &count3, &count4); + if (error) goto Exit; + + num_points = count1 + count3; + num_contours = count2 + count4; + +Exit: + *anum_points = num_points; + *anum_contours = num_contours; + return error; +} + +/* documentation is in ftstroke.h */ + +void SW_FT_Stroker_ExportBorder(SW_FT_Stroker stroker, + SW_FT_StrokerBorder border, + SW_FT_Outline* outline) +{ + if (border == SW_FT_STROKER_BORDER_LEFT || + border == SW_FT_STROKER_BORDER_RIGHT) { + SW_FT_StrokeBorder sborder = &stroker->borders[border]; + + if (sborder->valid) ft_stroke_border_export(sborder, outline); + } +} + +/* documentation is in ftstroke.h */ + +void SW_FT_Stroker_Export(SW_FT_Stroker stroker, SW_FT_Outline* outline) +{ + SW_FT_Stroker_ExportBorder(stroker, SW_FT_STROKER_BORDER_LEFT, outline); + SW_FT_Stroker_ExportBorder(stroker, SW_FT_STROKER_BORDER_RIGHT, outline); +} + +/* documentation is in ftstroke.h */ + +/* + * The following is very similar to SW_FT_Outline_Decompose, except + * that we do support opened paths, and do not scale the outline. + */ +SW_FT_Error SW_FT_Stroker_ParseOutline(SW_FT_Stroker stroker, + const SW_FT_Outline* outline) +{ + SW_FT_Vector v_last; + SW_FT_Vector v_control; + SW_FT_Vector v_start; + + SW_FT_Vector* point; + SW_FT_Vector* limit; + char* tags; + + SW_FT_Error error; + + SW_FT_Int n; /* index of contour in outline */ + SW_FT_UInt first; /* index of first point in contour */ + SW_FT_Int tag; /* current point's state */ + + if (!outline || !stroker) return -1; // SW_FT_THROW( Invalid_Argument ); + + SW_FT_Stroker_Rewind(stroker); + + first = 0; + + for (n = 0; n < outline->n_contours; n++) { + SW_FT_UInt last; /* index of last point in contour */ + + last = outline->contours[n]; + limit = outline->points + last; + + /* skip empty points; we don't stroke these */ + if (last <= first) { + first = last + 1; + continue; + } + + v_start = outline->points[first]; + v_last = outline->points[last]; + + v_control = v_start; + + point = outline->points + first; + tags = outline->tags + first; + tag = SW_FT_CURVE_TAG(tags[0]); + + /* A contour cannot start with a cubic control point! */ + if (tag == SW_FT_CURVE_TAG_CUBIC) goto Invalid_Outline; + + /* check first point to determine origin */ + if (tag == SW_FT_CURVE_TAG_CONIC) { + /* First point is conic control. Yes, this happens. */ + if (SW_FT_CURVE_TAG(outline->tags[last]) == SW_FT_CURVE_TAG_ON) { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } else { + /* if both first and last points are conic, */ + /* start at their middle */ + v_start.x = (v_start.x + v_last.x) / 2; + v_start.y = (v_start.y + v_last.y) / 2; + } + point--; + tags--; + } + + error = SW_FT_Stroker_BeginSubPath(stroker, &v_start, outline->contours_flag[n]); + if (error) goto Exit; + + while (point < limit) { + point++; + tags++; + + tag = SW_FT_CURVE_TAG(tags[0]); + switch (tag) { + case SW_FT_CURVE_TAG_ON: /* emit a single line_to */ + { + SW_FT_Vector vec; + + vec.x = point->x; + vec.y = point->y; + + error = SW_FT_Stroker_LineTo(stroker, &vec); + if (error) goto Exit; + continue; + } + + case SW_FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = point->x; + v_control.y = point->y; + + Do_Conic: + if (point < limit) { + SW_FT_Vector vec; + SW_FT_Vector v_middle; + + point++; + tags++; + tag = SW_FT_CURVE_TAG(tags[0]); + + vec = point[0]; + + if (tag == SW_FT_CURVE_TAG_ON) { + error = + SW_FT_Stroker_ConicTo(stroker, &v_control, &vec); + if (error) goto Exit; + continue; + } + + if (tag != SW_FT_CURVE_TAG_CONIC) goto Invalid_Outline; + + v_middle.x = (v_control.x + vec.x) / 2; + v_middle.y = (v_control.y + vec.y) / 2; + + error = + SW_FT_Stroker_ConicTo(stroker, &v_control, &v_middle); + if (error) goto Exit; + + v_control = vec; + goto Do_Conic; + } + + error = SW_FT_Stroker_ConicTo(stroker, &v_control, &v_start); + goto Close; + + default: /* SW_FT_CURVE_TAG_CUBIC */ + { + SW_FT_Vector vec1, vec2; + + if (point + 1 > limit || + SW_FT_CURVE_TAG(tags[1]) != SW_FT_CURVE_TAG_CUBIC) + goto Invalid_Outline; + + point += 2; + tags += 2; + + vec1 = point[-2]; + vec2 = point[-1]; + + if (point <= limit) { + SW_FT_Vector vec; + + vec = point[0]; + + error = SW_FT_Stroker_CubicTo(stroker, &vec1, &vec2, &vec); + if (error) goto Exit; + continue; + } + + error = SW_FT_Stroker_CubicTo(stroker, &vec1, &vec2, &v_start); + goto Close; + } + } + } + + Close: + if (error) goto Exit; + + /* don't try to end the path if no segments have been generated */ + if (!stroker->first_point) { + error = SW_FT_Stroker_EndSubPath(stroker); + if (error) goto Exit; + } + + first = last + 1; + } + + return 0; + +Exit: + return error; + +Invalid_Outline: + return -2; // SW_FT_THROW( Invalid_Outline ); +} + +/* END */ diff --git a/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_stroker.h b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_stroker.h new file mode 100644 index 00000000..0fdeb276 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_stroker.h @@ -0,0 +1,319 @@ +#ifndef V_FT_STROKER_H +#define V_FT_STROKER_H +/***************************************************************************/ +/* */ +/* ftstroke.h */ +/* */ +/* FreeType path stroker (specification). */ +/* */ +/* Copyright 2002-2006, 2008, 2009, 2011-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include "vector_freetype_v_ft_raster.h" + + /************************************************************** + * + * @type: + * SW_FT_Stroker + * + * @description: + * Opaque handler to a path stroker object. + */ + typedef struct SW_FT_StrokerRec_* SW_FT_Stroker; + + + /************************************************************** + * + * @enum: + * SW_FT_Stroker_LineJoin + * + * @description: + * These values determine how two joining lines are rendered + * in a stroker. + * + * @values: + * SW_FT_STROKER_LINEJOIN_ROUND :: + * Used to render rounded line joins. Circular arcs are used + * to join two lines smoothly. + * + * SW_FT_STROKER_LINEJOIN_BEVEL :: + * Used to render beveled line joins. The outer corner of + * the joined lines is filled by enclosing the triangular + * region of the corner with a straight line between the + * outer corners of each stroke. + * + * SW_FT_STROKER_LINEJOIN_MITER_FIXED :: + * Used to render mitered line joins, with fixed bevels if the + * miter limit is exceeded. The outer edges of the strokes + * for the two segments are extended until they meet at an + * angle. If the segments meet at too sharp an angle (such + * that the miter would extend from the intersection of the + * segments a distance greater than the product of the miter + * limit value and the border radius), then a bevel join (see + * above) is used instead. This prevents long spikes being + * created. SW_FT_STROKER_LINEJOIN_MITER_FIXED generates a miter + * line join as used in PostScript and PDF. + * + * SW_FT_STROKER_LINEJOIN_MITER_VARIABLE :: + * SW_FT_STROKER_LINEJOIN_MITER :: + * Used to render mitered line joins, with variable bevels if + * the miter limit is exceeded. The intersection of the + * strokes is clipped at a line perpendicular to the bisector + * of the angle between the strokes, at the distance from the + * intersection of the segments equal to the product of the + * miter limit value and the border radius. This prevents + * long spikes being created. + * SW_FT_STROKER_LINEJOIN_MITER_VARIABLE generates a mitered line + * join as used in XPS. SW_FT_STROKER_LINEJOIN_MITER is an alias + * for SW_FT_STROKER_LINEJOIN_MITER_VARIABLE, retained for + * backwards compatibility. + */ + typedef enum SW_FT_Stroker_LineJoin_ + { + SW_FT_STROKER_LINEJOIN_ROUND = 0, + SW_FT_STROKER_LINEJOIN_BEVEL = 1, + SW_FT_STROKER_LINEJOIN_MITER_VARIABLE = 2, + SW_FT_STROKER_LINEJOIN_MITER = SW_FT_STROKER_LINEJOIN_MITER_VARIABLE, + SW_FT_STROKER_LINEJOIN_MITER_FIXED = 3 + + } SW_FT_Stroker_LineJoin; + + + /************************************************************** + * + * @enum: + * SW_FT_Stroker_LineCap + * + * @description: + * These values determine how the end of opened sub-paths are + * rendered in a stroke. + * + * @values: + * SW_FT_STROKER_LINECAP_BUTT :: + * The end of lines is rendered as a full stop on the last + * point itself. + * + * SW_FT_STROKER_LINECAP_ROUND :: + * The end of lines is rendered as a half-circle around the + * last point. + * + * SW_FT_STROKER_LINECAP_SQUARE :: + * The end of lines is rendered as a square around the + * last point. + */ + typedef enum SW_FT_Stroker_LineCap_ + { + SW_FT_STROKER_LINECAP_BUTT = 0, + SW_FT_STROKER_LINECAP_ROUND, + SW_FT_STROKER_LINECAP_SQUARE + + } SW_FT_Stroker_LineCap; + + + /************************************************************** + * + * @enum: + * SW_FT_StrokerBorder + * + * @description: + * These values are used to select a given stroke border + * in @SW_FT_Stroker_GetBorderCounts and @SW_FT_Stroker_ExportBorder. + * + * @values: + * SW_FT_STROKER_BORDER_LEFT :: + * Select the left border, relative to the drawing direction. + * + * SW_FT_STROKER_BORDER_RIGHT :: + * Select the right border, relative to the drawing direction. + * + * @note: + * Applications are generally interested in the `inside' and `outside' + * borders. However, there is no direct mapping between these and the + * `left' and `right' ones, since this really depends on the glyph's + * drawing orientation, which varies between font formats. + * + * You can however use @SW_FT_Outline_GetInsideBorder and + * @SW_FT_Outline_GetOutsideBorder to get these. + */ + typedef enum SW_FT_StrokerBorder_ + { + SW_FT_STROKER_BORDER_LEFT = 0, + SW_FT_STROKER_BORDER_RIGHT + + } SW_FT_StrokerBorder; + + + /************************************************************** + * + * @function: + * SW_FT_Stroker_New + * + * @description: + * Create a new stroker object. + * + * @input: + * library :: + * FreeType library handle. + * + * @output: + * astroker :: + * A new stroker object handle. NULL in case of error. + * + * @return: + * FreeType error code. 0~means success. + */ + SW_FT_Error + SW_FT_Stroker_New( SW_FT_Stroker *astroker ); + + + /************************************************************** + * + * @function: + * SW_FT_Stroker_Set + * + * @description: + * Reset a stroker object's attributes. + * + * @input: + * stroker :: + * The target stroker handle. + * + * radius :: + * The border radius. + * + * line_cap :: + * The line cap style. + * + * line_join :: + * The line join style. + * + * miter_limit :: + * The miter limit for the SW_FT_STROKER_LINEJOIN_MITER_FIXED and + * SW_FT_STROKER_LINEJOIN_MITER_VARIABLE line join styles, + * expressed as 16.16 fixed-point value. + * + * @note: + * The radius is expressed in the same units as the outline + * coordinates. + */ + void + SW_FT_Stroker_Set( SW_FT_Stroker stroker, + SW_FT_Fixed radius, + SW_FT_Stroker_LineCap line_cap, + SW_FT_Stroker_LineJoin line_join, + SW_FT_Fixed miter_limit ); + + /************************************************************** + * + * @function: + * SW_FT_Stroker_ParseOutline + * + * @description: + * A convenience function used to parse a whole outline with + * the stroker. The resulting outline(s) can be retrieved + * later by functions like @SW_FT_Stroker_GetCounts and @SW_FT_Stroker_Export. + * + * @input: + * stroker :: + * The target stroker handle. + * + * outline :: + * The source outline. + * + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * If `opened' is~0 (the default), the outline is treated as a closed + * path, and the stroker generates two distinct `border' outlines. + * + * + * This function calls @SW_FT_Stroker_Rewind automatically. + */ + SW_FT_Error + SW_FT_Stroker_ParseOutline( SW_FT_Stroker stroker, + const SW_FT_Outline* outline); + + + /************************************************************** + * + * @function: + * SW_FT_Stroker_GetCounts + * + * @description: + * Call this function once you have finished parsing your paths + * with the stroker. It returns the number of points and + * contours necessary to export all points/borders from the stroked + * outline/path. + * + * @input: + * stroker :: + * The target stroker handle. + * + * @output: + * anum_points :: + * The number of points. + * + * anum_contours :: + * The number of contours. + * + * @return: + * FreeType error code. 0~means success. + */ + SW_FT_Error + SW_FT_Stroker_GetCounts( SW_FT_Stroker stroker, + SW_FT_UInt *anum_points, + SW_FT_UInt *anum_contours ); + + + /************************************************************** + * + * @function: + * SW_FT_Stroker_Export + * + * @description: + * Call this function after @SW_FT_Stroker_GetBorderCounts to + * export all borders to your own @SW_FT_Outline structure. + * + * Note that this function appends the border points and + * contours to your outline, but does not try to resize its + * arrays. + * + * @input: + * stroker :: + * The target stroker handle. + * + * outline :: + * The target outline handle. + */ + void + SW_FT_Stroker_Export( SW_FT_Stroker stroker, + SW_FT_Outline* outline ); + + + /************************************************************** + * + * @function: + * SW_FT_Stroker_Done + * + * @description: + * Destroy a stroker object. + * + * @input: + * stroker :: + * A stroker handle. Can be NULL. + */ + void + SW_FT_Stroker_Done( SW_FT_Stroker stroker ); + + +#endif // V_FT_STROKER_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_types.h b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_types.h new file mode 100644 index 00000000..a01c4f28 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_freetype_v_ft_types.h @@ -0,0 +1,160 @@ +#ifndef V_FT_TYPES_H +#define V_FT_TYPES_H + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_Fixed */ +/* */ +/* <Description> */ +/* This type is used to store 16.16 fixed-point values, like scaling */ +/* values or matrix coefficients. */ +/* */ +typedef signed long SW_FT_Fixed; + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_Int */ +/* */ +/* <Description> */ +/* A typedef for the int type. */ +/* */ +typedef signed int SW_FT_Int; + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_UInt */ +/* */ +/* <Description> */ +/* A typedef for the unsigned int type. */ +/* */ +typedef unsigned int SW_FT_UInt; + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_Long */ +/* */ +/* <Description> */ +/* A typedef for signed long. */ +/* */ +typedef signed long SW_FT_Long; + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_ULong */ +/* */ +/* <Description> */ +/* A typedef for unsigned long. */ +/* */ +typedef unsigned long SW_FT_ULong; + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_Short */ +/* */ +/* <Description> */ +/* A typedef for signed short. */ +/* */ +typedef signed short SW_FT_Short; + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_Byte */ +/* */ +/* <Description> */ +/* A simple typedef for the _unsigned_ char type. */ +/* */ +typedef unsigned char SW_FT_Byte; + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_Bool */ +/* */ +/* <Description> */ +/* A typedef of unsigned char, used for simple booleans. As usual, */ +/* values 1 and~0 represent true and false, respectively. */ +/* */ +typedef unsigned char SW_FT_Bool; + + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_Error */ +/* */ +/* <Description> */ +/* The FreeType error code type. A value of~0 is always interpreted */ +/* as a successful operation. */ +/* */ +typedef int SW_FT_Error; + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* SW_FT_Pos */ +/* */ +/* <Description> */ +/* The type SW_FT_Pos is used to store vectorial coordinates. Depending */ +/* on the context, these can represent distances in integer font */ +/* units, or 16.16, or 26.6 fixed-point pixel coordinates. */ +/* */ +typedef signed long SW_FT_Pos; + + +/*************************************************************************/ +/* */ +/* <Struct> */ +/* SW_FT_Vector */ +/* */ +/* <Description> */ +/* A simple structure used to store a 2D vector; coordinates are of */ +/* the SW_FT_Pos type. */ +/* */ +/* <Fields> */ +/* x :: The horizontal coordinate. */ +/* y :: The vertical coordinate. */ +/* */ +typedef struct SW_FT_Vector_ +{ + SW_FT_Pos x; + SW_FT_Pos y; + +} SW_FT_Vector; + + +typedef long long int SW_FT_Int64; +typedef unsigned long long int SW_FT_UInt64; + +typedef signed int SW_FT_Int32; +typedef unsigned int SW_FT_UInt32; + + +#define SW_FT_BOOL( x ) ( (SW_FT_Bool)( x ) ) + +#define SW_FT_SIZEOF_LONG 4 + +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + + +#endif // V_FT_TYPES_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_pixman_pixman-arm-neon-asm.S b/vendor/github.com/Benau/go_rlottie/vector_pixman_pixman-arm-neon-asm.S new file mode 100644 index 00000000..71554ab5 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_pixman_pixman-arm-neon-asm.S @@ -0,0 +1,500 @@ +#include "config.h" +#ifdef USE_ARM_NEON +/* + * Copyright © 2009 Nokia Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author: Siarhei Siamashka (siarhei.siamashka@nokia.com) + */ + +/* + * This file contains implementations of NEON optimized pixel processing + * functions. There is no full and detailed tutorial, but some functions + * (those which are exposing some new or interesting features) are + * extensively commented and can be used as examples. + * + * You may want to have a look at the comments for following functions: + * - pixman_composite_over_8888_0565_asm_neon + * - pixman_composite_over_n_8_0565_asm_neon + */ + +/* Prevent the stack from becoming executable for no reason... */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack,"",%progbits +#endif + + .text + .fpu neon + .arch armv7a + .object_arch armv4 + .eabi_attribute 10, 0 /* suppress Tag_FP_arch */ + .eabi_attribute 12, 0 /* suppress Tag_Advanced_SIMD_arch */ + .arm + .altmacro + .p2align 2 + + +//#include "pixman-arm-asm.h" +/* Supplementary macro for setting function attributes */ +.macro pixman_asm_function fname + .func fname + .global fname +#ifdef __ELF__ + .hidden fname + .type fname, %function +#endif +fname: +.endm + +//#include "pixman-private.h" +/* + * The defines which are shared between C and assembly code + */ + +/* bilinear interpolation precision (must be < 8) */ +#define BILINEAR_INTERPOLATION_BITS 7 +#define BILINEAR_INTERPOLATION_RANGE (1 << BILINEAR_INTERPOLATION_BITS) + +#include "vector_pixman_pixman-arm-neon-asm.h" + +/* Global configuration options and preferences */ + +/* + * The code can optionally make use of unaligned memory accesses to improve + * performance of handling leading/trailing pixels for each scanline. + * Configuration variable RESPECT_STRICT_ALIGNMENT can be set to 0 for + * example in linux if unaligned memory accesses are not configured to + * generate.exceptions. + */ +.set RESPECT_STRICT_ALIGNMENT, 1 + +/* + * Set default prefetch type. There is a choice between the following options: + * + * PREFETCH_TYPE_NONE (may be useful for the ARM cores where PLD is set to work + * as NOP to workaround some HW bugs or for whatever other reason) + * + * PREFETCH_TYPE_SIMPLE (may be useful for simple single-issue ARM cores where + * advanced prefetch intruduces heavy overhead) + * + * PREFETCH_TYPE_ADVANCED (useful for superscalar cores such as ARM Cortex-A8 + * which can run ARM and NEON instructions simultaneously so that extra ARM + * instructions do not add (many) extra cycles, but improve prefetch efficiency) + * + * Note: some types of function can't support advanced prefetch and fallback + * to simple one (those which handle 24bpp pixels) + */ +.set PREFETCH_TYPE_DEFAULT, PREFETCH_TYPE_ADVANCED + +/* Prefetch distance in pixels for simple prefetch */ +.set PREFETCH_DISTANCE_SIMPLE, 64 + +/* + * Implementation of pixman_composite_over_8888_0565_asm_neon + * + * This function takes a8r8g8b8 source buffer, r5g6b5 destination buffer and + * performs OVER compositing operation. Function fast_composite_over_8888_0565 + * from pixman-fast-path.c does the same in C and can be used as a reference. + * + * First we need to have some NEON assembly code which can do the actual + * operation on the pixels and provide it to the template macro. + * + * Template macro quite conveniently takes care of emitting all the necessary + * code for memory reading and writing (including quite tricky cases of + * handling unaligned leading/trailing pixels), so we only need to deal with + * the data in NEON registers. + * + * NEON registers allocation in general is recommented to be the following: + * d0, d1, d2, d3 - contain loaded source pixel data + * d4, d5, d6, d7 - contain loaded destination pixels (if they are needed) + * d24, d25, d26, d27 - contain loading mask pixel data (if mask is used) + * d28, d29, d30, d31 - place for storing the result (destination pixels) + * + * As can be seen above, four 64-bit NEON registers are used for keeping + * intermediate pixel data and up to 8 pixels can be processed in one step + * for 32bpp formats (16 pixels for 16bpp, 32 pixels for 8bpp). + * + * This particular function uses the following registers allocation: + * d0, d1, d2, d3 - contain loaded source pixel data + * d4, d5 - contain loaded destination pixels (they are needed) + * d28, d29 - place for storing the result (destination pixels) + */ + +/* + * Step one. We need to have some code to do some arithmetics on pixel data. + * This is implemented as a pair of macros: '*_head' and '*_tail'. When used + * back-to-back, they take pixel data from {d0, d1, d2, d3} and {d4, d5}, + * perform all the needed calculations and write the result to {d28, d29}. + * The rationale for having two macros and not just one will be explained + * later. In practice, any single monolitic function which does the work can + * be split into two parts in any arbitrary way without affecting correctness. + * + * There is one special trick here too. Common template macro can optionally + * make our life a bit easier by doing R, G, B, A color components + * deinterleaving for 32bpp pixel formats (and this feature is used in + * 'pixman_composite_over_8888_0565_asm_neon' function). So it means that + * instead of having 8 packed pixels in {d0, d1, d2, d3} registers, we + * actually use d0 register for blue channel (a vector of eight 8-bit + * values), d1 register for green, d2 for red and d3 for alpha. This + * simple conversion can be also done with a few NEON instructions: + * + * Packed to planar conversion: + * vuzp.8 d0, d1 + * vuzp.8 d2, d3 + * vuzp.8 d1, d3 + * vuzp.8 d0, d2 + * + * Planar to packed conversion: + * vzip.8 d0, d2 + * vzip.8 d1, d3 + * vzip.8 d2, d3 + * vzip.8 d0, d1 + * + * But pixel can be loaded directly in planar format using VLD4.8 NEON + * instruction. It is 1 cycle slower than VLD1.32, so this is not always + * desirable, that's why deinterleaving is optional. + * + * But anyway, here is the code: + */ + +/* + * OK, now we got almost everything that we need. Using the above two + * macros, the work can be done right. But now we want to optimize + * it a bit. ARM Cortex-A8 is an in-order core, and benefits really + * a lot from good code scheduling and software pipelining. + * + * Let's construct some code, which will run in the core main loop. + * Some pseudo-code of the main loop will look like this: + * head + * while (...) { + * tail + * head + * } + * tail + * + * It may look a bit weird, but this setup allows to hide instruction + * latencies better and also utilize dual-issue capability more + * efficiently (make pairs of load-store and ALU instructions). + * + * So what we need now is a '*_tail_head' macro, which will be used + * in the core main loop. A trivial straightforward implementation + * of this macro would look like this: + * + * pixman_composite_over_8888_0565_process_pixblock_tail + * vst1.16 {d28, d29}, [DST_W, :128]! + * vld1.16 {d4, d5}, [DST_R, :128]! + * vld4.32 {d0, d1, d2, d3}, [SRC]! + * pixman_composite_over_8888_0565_process_pixblock_head + * cache_preload 8, 8 + * + * Now it also got some VLD/VST instructions. We simply can't move from + * processing one block of pixels to the other one with just arithmetics. + * The previously processed data needs to be written to memory and new + * data needs to be fetched. Fortunately, this main loop does not deal + * with partial leading/trailing pixels and can load/store a full block + * of pixels in a bulk. Additionally, destination buffer is already + * 16 bytes aligned here (which is good for performance). + * + * New things here are DST_R, DST_W, SRC and MASK identifiers. These + * are the aliases for ARM registers which are used as pointers for + * accessing data. We maintain separate pointers for reading and writing + * destination buffer (DST_R and DST_W). + * + * Another new thing is 'cache_preload' macro. It is used for prefetching + * data into CPU L2 cache and improve performance when dealing with large + * images which are far larger than cache size. It uses one argument + * (actually two, but they need to be the same here) - number of pixels + * in a block. Looking into 'pixman-arm-neon-asm.h' can provide some + * details about this macro. Moreover, if good performance is needed + * the code from this macro needs to be copied into '*_tail_head' macro + * and mixed with the rest of code for optimal instructions scheduling. + * We are actually doing it below. + * + * Now after all the explanations, here is the optimized code. + * Different instruction streams (originaling from '*_head', '*_tail' + * and 'cache_preload' macro) use different indentation levels for + * better readability. Actually taking the code from one of these + * indentation levels and ignoring a few VLD/VST instructions would + * result in exactly the code from '*_head', '*_tail' or 'cache_preload' + * macro! + */ + +/* + * And now the final part. We are using 'generate_composite_function' macro + * to put all the stuff together. We are specifying the name of the function + * which we want to get, number of bits per pixel for the source, mask and + * destination (0 if unused, like mask in this case). Next come some bit + * flags: + * FLAG_DST_READWRITE - tells that the destination buffer is both read + * and written, for write-only buffer we would use + * FLAG_DST_WRITEONLY flag instead + * FLAG_DEINTERLEAVE_32BPP - tells that we prefer to work with planar data + * and separate color channels for 32bpp format. + * The next things are: + * - the number of pixels processed per iteration (8 in this case, because + * that's the maximum what can fit into four 64-bit NEON registers). + * - prefetch distance, measured in pixel blocks. In this case it is 5 times + * by 8 pixels. That would be 40 pixels, or up to 160 bytes. Optimal + * prefetch distance can be selected by running some benchmarks. + * + * After that we specify some macros, these are 'default_init', + * 'default_cleanup' here which are empty (but it is possible to have custom + * init/cleanup macros to be able to save/restore some extra NEON registers + * like d8-d15 or do anything else) followed by + * 'pixman_composite_over_8888_0565_process_pixblock_head', + * 'pixman_composite_over_8888_0565_process_pixblock_tail' and + * 'pixman_composite_over_8888_0565_process_pixblock_tail_head' + * which we got implemented above. + * + * The last part is the NEON registers allocation scheme. + */ + +/******************************************************************************/ + +/******************************************************************************/ + .macro pixman_composite_out_reverse_8888_8888_process_pixblock_head + vmvn.8 d24, d3 /* get inverted alpha */ + /* do alpha blending */ + vmull.u8 q8, d24, d4 + vmull.u8 q9, d24, d5 + vmull.u8 q10, d24, d6 + vmull.u8 q11, d24, d7 + .endm + + .macro pixman_composite_out_reverse_8888_8888_process_pixblock_tail + vrshr.u16 q14, q8, #8 + vrshr.u16 q15, q9, #8 + vrshr.u16 q12, q10, #8 + vrshr.u16 q13, q11, #8 + vraddhn.u16 d28, q14, q8 + vraddhn.u16 d29, q15, q9 + vraddhn.u16 d30, q12, q10 + vraddhn.u16 d31, q13, q11 + .endm + +/******************************************************************************/ + +.macro pixman_composite_over_8888_8888_process_pixblock_head + pixman_composite_out_reverse_8888_8888_process_pixblock_head +.endm + +.macro pixman_composite_over_8888_8888_process_pixblock_tail + pixman_composite_out_reverse_8888_8888_process_pixblock_tail + vqadd.u8 q14, q0, q14 + vqadd.u8 q15, q1, q15 +.endm + +.macro pixman_composite_over_8888_8888_process_pixblock_tail_head + vld4.8 {d4, d5, d6, d7}, [DST_R, :128]! + vrshr.u16 q14, q8, #8 + PF add PF_X, PF_X, #8 + PF tst PF_CTL, #0xF + vrshr.u16 q15, q9, #8 + vrshr.u16 q12, q10, #8 + vrshr.u16 q13, q11, #8 + PF addne PF_X, PF_X, #8 + PF subne PF_CTL, PF_CTL, #1 + vraddhn.u16 d28, q14, q8 + vraddhn.u16 d29, q15, q9 + PF cmp PF_X, ORIG_W + vraddhn.u16 d30, q12, q10 + vraddhn.u16 d31, q13, q11 + vqadd.u8 q14, q0, q14 + vqadd.u8 q15, q1, q15 + fetch_src_pixblock + PF pld, [PF_SRC, PF_X, lsl #src_bpp_shift] + vmvn.8 d22, d3 + PF pld, [PF_DST, PF_X, lsl #dst_bpp_shift] + vst4.8 {d28, d29, d30, d31}, [DST_W, :128]! + PF subge PF_X, PF_X, ORIG_W + vmull.u8 q8, d22, d4 + PF subges PF_CTL, PF_CTL, #0x10 + vmull.u8 q9, d22, d5 + PF ldrgeb DUMMY, [PF_SRC, SRC_STRIDE, lsl #src_bpp_shift]! + vmull.u8 q10, d22, d6 + PF ldrgeb DUMMY, [PF_DST, DST_STRIDE, lsl #dst_bpp_shift]! + vmull.u8 q11, d22, d7 +.endm + +generate_composite_function \ + pixman_composite_over_8888_8888_asm_neon, 32, 0, 32, \ + FLAG_DST_READWRITE | FLAG_DEINTERLEAVE_32BPP, \ + 8, /* number of pixels, processed in a single block */ \ + 5, /* prefetch distance */ \ + default_init, \ + default_cleanup, \ + pixman_composite_over_8888_8888_process_pixblock_head, \ + pixman_composite_over_8888_8888_process_pixblock_tail, \ + pixman_composite_over_8888_8888_process_pixblock_tail_head + +generate_composite_function_single_scanline \ + pixman_composite_scanline_over_asm_neon, 32, 0, 32, \ + FLAG_DST_READWRITE | FLAG_DEINTERLEAVE_32BPP, \ + 8, /* number of pixels, processed in a single block */ \ + default_init, \ + default_cleanup, \ + pixman_composite_over_8888_8888_process_pixblock_head, \ + pixman_composite_over_8888_8888_process_pixblock_tail, \ + pixman_composite_over_8888_8888_process_pixblock_tail_head + +/******************************************************************************/ + +.macro pixman_composite_over_n_8888_process_pixblock_head + /* deinterleaved source pixels in {d0, d1, d2, d3} */ + /* inverted alpha in {d24} */ + /* destination pixels in {d4, d5, d6, d7} */ + vmull.u8 q8, d24, d4 + vmull.u8 q9, d24, d5 + vmull.u8 q10, d24, d6 + vmull.u8 q11, d24, d7 +.endm + +.macro pixman_composite_over_n_8888_process_pixblock_tail + vrshr.u16 q14, q8, #8 + vrshr.u16 q15, q9, #8 + vrshr.u16 q2, q10, #8 + vrshr.u16 q3, q11, #8 + vraddhn.u16 d28, q14, q8 + vraddhn.u16 d29, q15, q9 + vraddhn.u16 d30, q2, q10 + vraddhn.u16 d31, q3, q11 + vqadd.u8 q14, q0, q14 + vqadd.u8 q15, q1, q15 +.endm + +.macro pixman_composite_over_n_8888_process_pixblock_tail_head + vrshr.u16 q14, q8, #8 + vrshr.u16 q15, q9, #8 + vrshr.u16 q2, q10, #8 + vrshr.u16 q3, q11, #8 + vraddhn.u16 d28, q14, q8 + vraddhn.u16 d29, q15, q9 + vraddhn.u16 d30, q2, q10 + vraddhn.u16 d31, q3, q11 + vld4.8 {d4, d5, d6, d7}, [DST_R, :128]! + vqadd.u8 q14, q0, q14 + PF add PF_X, PF_X, #8 + PF tst PF_CTL, #0x0F + PF addne PF_X, PF_X, #8 + PF subne PF_CTL, PF_CTL, #1 + vqadd.u8 q15, q1, q15 + PF cmp PF_X, ORIG_W + vmull.u8 q8, d24, d4 + PF pld, [PF_DST, PF_X, lsl #dst_bpp_shift] + vmull.u8 q9, d24, d5 + PF subge PF_X, PF_X, ORIG_W + vmull.u8 q10, d24, d6 + PF subges PF_CTL, PF_CTL, #0x10 + vmull.u8 q11, d24, d7 + PF ldrgeb DUMMY, [PF_DST, DST_STRIDE, lsl #dst_bpp_shift]! + vst4.8 {d28, d29, d30, d31}, [DST_W, :128]! +.endm + +.macro pixman_composite_over_n_8888_init + add DUMMY, sp, #ARGS_STACK_OFFSET + vld1.32 {d3[0]}, [DUMMY] + vdup.8 d0, d3[0] + vdup.8 d1, d3[1] + vdup.8 d2, d3[2] + vdup.8 d3, d3[3] + vmvn.8 d24, d3 /* get inverted alpha */ +.endm + +generate_composite_function \ + pixman_composite_over_n_8888_asm_neon, 0, 0, 32, \ + FLAG_DST_READWRITE | FLAG_DEINTERLEAVE_32BPP, \ + 8, /* number of pixels, processed in a single block */ \ + 5, /* prefetch distance */ \ + pixman_composite_over_n_8888_init, \ + default_cleanup, \ + pixman_composite_over_8888_8888_process_pixblock_head, \ + pixman_composite_over_8888_8888_process_pixblock_tail, \ + pixman_composite_over_n_8888_process_pixblock_tail_head + +/******************************************************************************/ + +.macro pixman_composite_src_n_8888_process_pixblock_head +.endm + +.macro pixman_composite_src_n_8888_process_pixblock_tail +.endm + +.macro pixman_composite_src_n_8888_process_pixblock_tail_head + vst1.32 {d0, d1, d2, d3}, [DST_W, :128]! +.endm + +.macro pixman_composite_src_n_8888_init + add DUMMY, sp, #ARGS_STACK_OFFSET + vld1.32 {d0[0]}, [DUMMY] + vsli.u64 d0, d0, #32 + vorr d1, d0, d0 + vorr q1, q0, q0 +.endm + +.macro pixman_composite_src_n_8888_cleanup +.endm + +generate_composite_function \ + pixman_composite_src_n_8888_asm_neon, 0, 0, 32, \ + FLAG_DST_WRITEONLY, \ + 8, /* number of pixels, processed in a single block */ \ + 0, /* prefetch distance */ \ + pixman_composite_src_n_8888_init, \ + pixman_composite_src_n_8888_cleanup, \ + pixman_composite_src_n_8888_process_pixblock_head, \ + pixman_composite_src_n_8888_process_pixblock_tail, \ + pixman_composite_src_n_8888_process_pixblock_tail_head, \ + 0, /* dst_w_basereg */ \ + 0, /* dst_r_basereg */ \ + 0, /* src_basereg */ \ + 0 /* mask_basereg */ + +/******************************************************************************/ + +.macro pixman_composite_src_8888_8888_process_pixblock_head +.endm + +.macro pixman_composite_src_8888_8888_process_pixblock_tail +.endm + +.macro pixman_composite_src_8888_8888_process_pixblock_tail_head + vst1.32 {d0, d1, d2, d3}, [DST_W, :128]! + fetch_src_pixblock + cache_preload 8, 8 +.endm + +generate_composite_function \ + pixman_composite_src_8888_8888_asm_neon, 32, 0, 32, \ + FLAG_DST_WRITEONLY, \ + 8, /* number of pixels, processed in a single block */ \ + 10, /* prefetch distance */ \ + default_init, \ + default_cleanup, \ + pixman_composite_src_8888_8888_process_pixblock_head, \ + pixman_composite_src_8888_8888_process_pixblock_tail, \ + pixman_composite_src_8888_8888_process_pixblock_tail_head, \ + 0, /* dst_w_basereg */ \ + 0, /* dst_r_basereg */ \ + 0, /* src_basereg */ \ + 0 /* mask_basereg */ + +/******************************************************************************/ +#endif diff --git a/vendor/github.com/Benau/go_rlottie/vector_pixman_pixman-arm-neon-asm.h b/vendor/github.com/Benau/go_rlottie/vector_pixman_pixman-arm-neon-asm.h new file mode 100644 index 00000000..6add220a --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_pixman_pixman-arm-neon-asm.h @@ -0,0 +1,1126 @@ +/* + * Copyright © 2009 Nokia Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author: Siarhei Siamashka (siarhei.siamashka@nokia.com) + */ + +/* + * This file contains a macro ('generate_composite_function') which can + * construct 2D image processing functions, based on a common template. + * Any combinations of source, destination and mask images with 8bpp, + * 16bpp, 24bpp, 32bpp color formats are supported. + * + * This macro takes care of: + * - handling of leading and trailing unaligned pixels + * - doing most of the work related to L2 cache preload + * - encourages the use of software pipelining for better instructions + * scheduling + * + * The user of this macro has to provide some configuration parameters + * (bit depths for the images, prefetch distance, etc.) and a set of + * macros, which should implement basic code chunks responsible for + * pixels processing. See 'pixman-arm-neon-asm.S' file for the usage + * examples. + * + * TODO: + * - try overlapped pixel method (from Ian Rickards) when processing + * exactly two blocks of pixels + * - maybe add an option to do reverse scanline processing + */ + +/* + * Bit flags for 'generate_composite_function' macro which are used + * to tune generated functions behavior. + */ +.set FLAG_DST_WRITEONLY, 0 +.set FLAG_DST_READWRITE, 1 +.set FLAG_DEINTERLEAVE_32BPP, 2 + +/* + * Offset in stack where mask and source pointer/stride can be accessed + * from 'init' macro. This is useful for doing special handling for solid mask. + */ +.set ARGS_STACK_OFFSET, 40 + +/* + * Constants for selecting preferable prefetch type. + */ +.set PREFETCH_TYPE_NONE, 0 /* No prefetch at all */ +.set PREFETCH_TYPE_SIMPLE, 1 /* A simple, fixed-distance-ahead prefetch */ +.set PREFETCH_TYPE_ADVANCED, 2 /* Advanced fine-grained prefetch */ + +/* + * Definitions of supplementary pixld/pixst macros (for partial load/store of + * pixel data). + */ + +.macro pixldst1 op, elem_size, reg1, mem_operand, abits +.if abits > 0 + op&.&elem_size {d®1}, [&mem_operand&, :&abits&]! +.else + op&.&elem_size {d®1}, [&mem_operand&]! +.endif +.endm + +.macro pixldst2 op, elem_size, reg1, reg2, mem_operand, abits +.if abits > 0 + op&.&elem_size {d®1, d®2}, [&mem_operand&, :&abits&]! +.else + op&.&elem_size {d®1, d®2}, [&mem_operand&]! +.endif +.endm + +.macro pixldst4 op, elem_size, reg1, reg2, reg3, reg4, mem_operand, abits +.if abits > 0 + op&.&elem_size {d®1, d®2, d®3, d®4}, [&mem_operand&, :&abits&]! +.else + op&.&elem_size {d®1, d®2, d®3, d®4}, [&mem_operand&]! +.endif +.endm + +.macro pixldst0 op, elem_size, reg1, idx, mem_operand, abits + op&.&elem_size {d®1[idx]}, [&mem_operand&]! +.endm + +.macro pixldst3 op, elem_size, reg1, reg2, reg3, mem_operand + op&.&elem_size {d®1, d®2, d®3}, [&mem_operand&]! +.endm + +.macro pixldst30 op, elem_size, reg1, reg2, reg3, idx, mem_operand + op&.&elem_size {d®1[idx], d®2[idx], d®3[idx]}, [&mem_operand&]! +.endm + +.macro pixldst numbytes, op, elem_size, basereg, mem_operand, abits +.if numbytes == 32 + pixldst4 op, elem_size, %(basereg+4), %(basereg+5), \ + %(basereg+6), %(basereg+7), mem_operand, abits +.elseif numbytes == 16 + pixldst2 op, elem_size, %(basereg+2), %(basereg+3), mem_operand, abits +.elseif numbytes == 8 + pixldst1 op, elem_size, %(basereg+1), mem_operand, abits +.elseif numbytes == 4 + .if !RESPECT_STRICT_ALIGNMENT || (elem_size == 32) + pixldst0 op, 32, %(basereg+0), 1, mem_operand, abits + .elseif elem_size == 16 + pixldst0 op, 16, %(basereg+0), 2, mem_operand, abits + pixldst0 op, 16, %(basereg+0), 3, mem_operand, abits + .else + pixldst0 op, 8, %(basereg+0), 4, mem_operand, abits + pixldst0 op, 8, %(basereg+0), 5, mem_operand, abits + pixldst0 op, 8, %(basereg+0), 6, mem_operand, abits + pixldst0 op, 8, %(basereg+0), 7, mem_operand, abits + .endif +.elseif numbytes == 2 + .if !RESPECT_STRICT_ALIGNMENT || (elem_size == 16) + pixldst0 op, 16, %(basereg+0), 1, mem_operand, abits + .else + pixldst0 op, 8, %(basereg+0), 2, mem_operand, abits + pixldst0 op, 8, %(basereg+0), 3, mem_operand, abits + .endif +.elseif numbytes == 1 + pixldst0 op, 8, %(basereg+0), 1, mem_operand, abits +.else + .error "unsupported size: numbytes" +.endif +.endm + +.macro pixld numpix, bpp, basereg, mem_operand, abits=0 +.if bpp > 0 +.if (bpp == 32) && (numpix == 8) && (DEINTERLEAVE_32BPP_ENABLED != 0) + pixldst4 vld4, 8, %(basereg+4), %(basereg+5), \ + %(basereg+6), %(basereg+7), mem_operand, abits +.elseif (bpp == 24) && (numpix == 8) + pixldst3 vld3, 8, %(basereg+3), %(basereg+4), %(basereg+5), mem_operand +.elseif (bpp == 24) && (numpix == 4) + pixldst30 vld3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 4, mem_operand + pixldst30 vld3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 5, mem_operand + pixldst30 vld3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 6, mem_operand + pixldst30 vld3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 7, mem_operand +.elseif (bpp == 24) && (numpix == 2) + pixldst30 vld3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 2, mem_operand + pixldst30 vld3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 3, mem_operand +.elseif (bpp == 24) && (numpix == 1) + pixldst30 vld3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 1, mem_operand +.else + pixldst %(numpix * bpp / 8), vld1, %(bpp), basereg, mem_operand, abits +.endif +.endif +.endm + +.macro pixst numpix, bpp, basereg, mem_operand, abits=0 +.if bpp > 0 +.if (bpp == 32) && (numpix == 8) && (DEINTERLEAVE_32BPP_ENABLED != 0) + pixldst4 vst4, 8, %(basereg+4), %(basereg+5), \ + %(basereg+6), %(basereg+7), mem_operand, abits +.elseif (bpp == 24) && (numpix == 8) + pixldst3 vst3, 8, %(basereg+3), %(basereg+4), %(basereg+5), mem_operand +.elseif (bpp == 24) && (numpix == 4) + pixldst30 vst3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 4, mem_operand + pixldst30 vst3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 5, mem_operand + pixldst30 vst3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 6, mem_operand + pixldst30 vst3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 7, mem_operand +.elseif (bpp == 24) && (numpix == 2) + pixldst30 vst3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 2, mem_operand + pixldst30 vst3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 3, mem_operand +.elseif (bpp == 24) && (numpix == 1) + pixldst30 vst3, 8, %(basereg+0), %(basereg+1), %(basereg+2), 1, mem_operand +.else + pixldst %(numpix * bpp / 8), vst1, %(bpp), basereg, mem_operand, abits +.endif +.endif +.endm + +.macro pixld_a numpix, bpp, basereg, mem_operand +.if (bpp * numpix) <= 128 + pixld numpix, bpp, basereg, mem_operand, %(bpp * numpix) +.else + pixld numpix, bpp, basereg, mem_operand, 128 +.endif +.endm + +.macro pixst_a numpix, bpp, basereg, mem_operand +.if (bpp * numpix) <= 128 + pixst numpix, bpp, basereg, mem_operand, %(bpp * numpix) +.else + pixst numpix, bpp, basereg, mem_operand, 128 +.endif +.endm + +/* + * Pixel fetcher for nearest scaling (needs TMP1, TMP2, VX, UNIT_X register + * aliases to be defined) + */ +.macro pixld1_s elem_size, reg1, mem_operand +.if elem_size == 16 + mov TMP1, VX, asr #16 + adds VX, VX, UNIT_X +5: subpls VX, VX, SRC_WIDTH_FIXED + bpl 5b + add TMP1, mem_operand, TMP1, asl #1 + mov TMP2, VX, asr #16 + adds VX, VX, UNIT_X +5: subpls VX, VX, SRC_WIDTH_FIXED + bpl 5b + add TMP2, mem_operand, TMP2, asl #1 + vld1.16 {d®1&[0]}, [TMP1, :16] + mov TMP1, VX, asr #16 + adds VX, VX, UNIT_X +5: subpls VX, VX, SRC_WIDTH_FIXED + bpl 5b + add TMP1, mem_operand, TMP1, asl #1 + vld1.16 {d®1&[1]}, [TMP2, :16] + mov TMP2, VX, asr #16 + adds VX, VX, UNIT_X +5: subpls VX, VX, SRC_WIDTH_FIXED + bpl 5b + add TMP2, mem_operand, TMP2, asl #1 + vld1.16 {d®1&[2]}, [TMP1, :16] + vld1.16 {d®1&[3]}, [TMP2, :16] +.elseif elem_size == 32 + mov TMP1, VX, asr #16 + adds VX, VX, UNIT_X +5: subpls VX, VX, SRC_WIDTH_FIXED + bpl 5b + add TMP1, mem_operand, TMP1, asl #2 + mov TMP2, VX, asr #16 + adds VX, VX, UNIT_X +5: subpls VX, VX, SRC_WIDTH_FIXED + bpl 5b + add TMP2, mem_operand, TMP2, asl #2 + vld1.32 {d®1&[0]}, [TMP1, :32] + vld1.32 {d®1&[1]}, [TMP2, :32] +.else + .error "unsupported" +.endif +.endm + +.macro pixld2_s elem_size, reg1, reg2, mem_operand +.if 0 /* elem_size == 32 */ + mov TMP1, VX, asr #16 + add VX, VX, UNIT_X, asl #1 + add TMP1, mem_operand, TMP1, asl #2 + mov TMP2, VX, asr #16 + sub VX, VX, UNIT_X + add TMP2, mem_operand, TMP2, asl #2 + vld1.32 {d®1&[0]}, [TMP1, :32] + mov TMP1, VX, asr #16 + add VX, VX, UNIT_X, asl #1 + add TMP1, mem_operand, TMP1, asl #2 + vld1.32 {d®2&[0]}, [TMP2, :32] + mov TMP2, VX, asr #16 + add VX, VX, UNIT_X + add TMP2, mem_operand, TMP2, asl #2 + vld1.32 {d®1&[1]}, [TMP1, :32] + vld1.32 {d®2&[1]}, [TMP2, :32] +.else + pixld1_s elem_size, reg1, mem_operand + pixld1_s elem_size, reg2, mem_operand +.endif +.endm + +.macro pixld0_s elem_size, reg1, idx, mem_operand +.if elem_size == 16 + mov TMP1, VX, asr #16 + adds VX, VX, UNIT_X +5: subpls VX, VX, SRC_WIDTH_FIXED + bpl 5b + add TMP1, mem_operand, TMP1, asl #1 + vld1.16 {d®1&[idx]}, [TMP1, :16] +.elseif elem_size == 32 + mov TMP1, VX, asr #16 + adds VX, VX, UNIT_X +5: subpls VX, VX, SRC_WIDTH_FIXED + bpl 5b + add TMP1, mem_operand, TMP1, asl #2 + vld1.32 {d®1&[idx]}, [TMP1, :32] +.endif +.endm + +.macro pixld_s_internal numbytes, elem_size, basereg, mem_operand +.if numbytes == 32 + pixld2_s elem_size, %(basereg+4), %(basereg+5), mem_operand + pixld2_s elem_size, %(basereg+6), %(basereg+7), mem_operand + pixdeinterleave elem_size, %(basereg+4) +.elseif numbytes == 16 + pixld2_s elem_size, %(basereg+2), %(basereg+3), mem_operand +.elseif numbytes == 8 + pixld1_s elem_size, %(basereg+1), mem_operand +.elseif numbytes == 4 + .if elem_size == 32 + pixld0_s elem_size, %(basereg+0), 1, mem_operand + .elseif elem_size == 16 + pixld0_s elem_size, %(basereg+0), 2, mem_operand + pixld0_s elem_size, %(basereg+0), 3, mem_operand + .else + pixld0_s elem_size, %(basereg+0), 4, mem_operand + pixld0_s elem_size, %(basereg+0), 5, mem_operand + pixld0_s elem_size, %(basereg+0), 6, mem_operand + pixld0_s elem_size, %(basereg+0), 7, mem_operand + .endif +.elseif numbytes == 2 + .if elem_size == 16 + pixld0_s elem_size, %(basereg+0), 1, mem_operand + .else + pixld0_s elem_size, %(basereg+0), 2, mem_operand + pixld0_s elem_size, %(basereg+0), 3, mem_operand + .endif +.elseif numbytes == 1 + pixld0_s elem_size, %(basereg+0), 1, mem_operand +.else + .error "unsupported size: numbytes" +.endif +.endm + +.macro pixld_s numpix, bpp, basereg, mem_operand +.if bpp > 0 + pixld_s_internal %(numpix * bpp / 8), %(bpp), basereg, mem_operand +.endif +.endm + +.macro vuzp8 reg1, reg2 + vuzp.8 d®1, d®2 +.endm + +.macro vzip8 reg1, reg2 + vzip.8 d®1, d®2 +.endm + +/* deinterleave B, G, R, A channels for eight 32bpp pixels in 4 registers */ +.macro pixdeinterleave bpp, basereg +.if (bpp == 32) && (DEINTERLEAVE_32BPP_ENABLED != 0) + vuzp8 %(basereg+0), %(basereg+1) + vuzp8 %(basereg+2), %(basereg+3) + vuzp8 %(basereg+1), %(basereg+3) + vuzp8 %(basereg+0), %(basereg+2) +.endif +.endm + +/* interleave B, G, R, A channels for eight 32bpp pixels in 4 registers */ +.macro pixinterleave bpp, basereg +.if (bpp == 32) && (DEINTERLEAVE_32BPP_ENABLED != 0) + vzip8 %(basereg+0), %(basereg+2) + vzip8 %(basereg+1), %(basereg+3) + vzip8 %(basereg+2), %(basereg+3) + vzip8 %(basereg+0), %(basereg+1) +.endif +.endm + +/* + * This is a macro for implementing cache preload. The main idea is that + * cache preload logic is mostly independent from the rest of pixels + * processing code. It starts at the top left pixel and moves forward + * across pixels and can jump across scanlines. Prefetch distance is + * handled in an 'incremental' way: it starts from 0 and advances to the + * optimal distance over time. After reaching optimal prefetch distance, + * it is kept constant. There are some checks which prevent prefetching + * unneeded pixel lines below the image (but it still can prefetch a bit + * more data on the right side of the image - not a big issue and may + * be actually helpful when rendering text glyphs). Additional trick is + * the use of LDR instruction for prefetch instead of PLD when moving to + * the next line, the point is that we have a high chance of getting TLB + * miss in this case, and PLD would be useless. + * + * This sounds like it may introduce a noticeable overhead (when working with + * fully cached data). But in reality, due to having a separate pipeline and + * instruction queue for NEON unit in ARM Cortex-A8, normal ARM code can + * execute simultaneously with NEON and be completely shadowed by it. Thus + * we get no performance overhead at all (*). This looks like a very nice + * feature of Cortex-A8, if used wisely. We don't have a hardware prefetcher, + * but still can implement some rather advanced prefetch logic in software + * for almost zero cost! + * + * (*) The overhead of the prefetcher is visible when running some trivial + * pixels processing like simple copy. Anyway, having prefetch is a must + * when working with the graphics data. + */ +.macro PF a, x:vararg +.if (PREFETCH_TYPE_CURRENT == PREFETCH_TYPE_ADVANCED) + a x +.endif +.endm + +.macro cache_preload std_increment, boost_increment +.if (src_bpp_shift >= 0) || (dst_r_bpp != 0) || (mask_bpp_shift >= 0) +.if regs_shortage + PF ldr ORIG_W, [sp] /* If we are short on regs, ORIG_W is kept on stack */ +.endif +.if std_increment != 0 + PF add PF_X, PF_X, #std_increment +.endif + PF tst PF_CTL, #0xF + PF addne PF_X, PF_X, #boost_increment + PF subne PF_CTL, PF_CTL, #1 + PF cmp PF_X, ORIG_W +.if src_bpp_shift >= 0 + PF pld, [PF_SRC, PF_X, lsl #src_bpp_shift] +.endif +.if dst_r_bpp != 0 + PF pld, [PF_DST, PF_X, lsl #dst_bpp_shift] +.endif +.if mask_bpp_shift >= 0 + PF pld, [PF_MASK, PF_X, lsl #mask_bpp_shift] +.endif + PF subge PF_X, PF_X, ORIG_W + PF subges PF_CTL, PF_CTL, #0x10 +.if src_bpp_shift >= 0 + PF ldrgeb DUMMY, [PF_SRC, SRC_STRIDE, lsl #src_bpp_shift]! +.endif +.if dst_r_bpp != 0 + PF ldrgeb DUMMY, [PF_DST, DST_STRIDE, lsl #dst_bpp_shift]! +.endif +.if mask_bpp_shift >= 0 + PF ldrgeb DUMMY, [PF_MASK, MASK_STRIDE, lsl #mask_bpp_shift]! +.endif +.endif +.endm + +.macro cache_preload_simple +.if (PREFETCH_TYPE_CURRENT == PREFETCH_TYPE_SIMPLE) +.if src_bpp > 0 + pld [SRC, #(PREFETCH_DISTANCE_SIMPLE * src_bpp / 8)] +.endif +.if dst_r_bpp > 0 + pld [DST_R, #(PREFETCH_DISTANCE_SIMPLE * dst_r_bpp / 8)] +.endif +.if mask_bpp > 0 + pld [MASK, #(PREFETCH_DISTANCE_SIMPLE * mask_bpp / 8)] +.endif +.endif +.endm + +.macro fetch_mask_pixblock + pixld pixblock_size, mask_bpp, \ + (mask_basereg - pixblock_size * mask_bpp / 64), MASK +.endm + +/* + * Macro which is used to process leading pixels until destination + * pointer is properly aligned (at 16 bytes boundary). When destination + * buffer uses 16bpp format, this is unnecessary, or even pointless. + */ +.macro ensure_destination_ptr_alignment process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head +.if dst_w_bpp != 24 + tst DST_R, #0xF + beq 2f + +.irp lowbit, 1, 2, 4, 8, 16 +local skip1 +.if (dst_w_bpp <= (lowbit * 8)) && ((lowbit * 8) < (pixblock_size * dst_w_bpp)) +.if lowbit < 16 /* we don't need more than 16-byte alignment */ + tst DST_R, #lowbit + beq 1f +.endif + pixld_src (lowbit * 8 / dst_w_bpp), src_bpp, src_basereg, SRC + pixld (lowbit * 8 / dst_w_bpp), mask_bpp, mask_basereg, MASK +.if dst_r_bpp > 0 + pixld_a (lowbit * 8 / dst_r_bpp), dst_r_bpp, dst_r_basereg, DST_R +.else + add DST_R, DST_R, #lowbit +.endif + PF add PF_X, PF_X, #(lowbit * 8 / dst_w_bpp) + sub W, W, #(lowbit * 8 / dst_w_bpp) +1: +.endif +.endr + pixdeinterleave src_bpp, src_basereg + pixdeinterleave mask_bpp, mask_basereg + pixdeinterleave dst_r_bpp, dst_r_basereg + + process_pixblock_head + cache_preload 0, pixblock_size + cache_preload_simple + process_pixblock_tail + + pixinterleave dst_w_bpp, dst_w_basereg +.irp lowbit, 1, 2, 4, 8, 16 +.if (dst_w_bpp <= (lowbit * 8)) && ((lowbit * 8) < (pixblock_size * dst_w_bpp)) +.if lowbit < 16 /* we don't need more than 16-byte alignment */ + tst DST_W, #lowbit + beq 1f +.endif + pixst_a (lowbit * 8 / dst_w_bpp), dst_w_bpp, dst_w_basereg, DST_W +1: +.endif +.endr +.endif +2: +.endm + +/* + * Special code for processing up to (pixblock_size - 1) remaining + * trailing pixels. As SIMD processing performs operation on + * pixblock_size pixels, anything smaller than this has to be loaded + * and stored in a special way. Loading and storing of pixel data is + * performed in such a way that we fill some 'slots' in the NEON + * registers (some slots naturally are unused), then perform compositing + * operation as usual. In the end, the data is taken from these 'slots' + * and saved to memory. + * + * cache_preload_flag - allows to suppress prefetch if + * set to 0 + * dst_aligned_flag - selects whether destination buffer + * is aligned + */ +.macro process_trailing_pixels cache_preload_flag, \ + dst_aligned_flag, \ + process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head + tst W, #(pixblock_size - 1) + beq 2f +.irp chunk_size, 16, 8, 4, 2, 1 +.if pixblock_size > chunk_size + tst W, #chunk_size + beq 1f + pixld_src chunk_size, src_bpp, src_basereg, SRC + pixld chunk_size, mask_bpp, mask_basereg, MASK +.if dst_aligned_flag != 0 + pixld_a chunk_size, dst_r_bpp, dst_r_basereg, DST_R +.else + pixld chunk_size, dst_r_bpp, dst_r_basereg, DST_R +.endif +.if cache_preload_flag != 0 + PF add PF_X, PF_X, #chunk_size +.endif +1: +.endif +.endr + pixdeinterleave src_bpp, src_basereg + pixdeinterleave mask_bpp, mask_basereg + pixdeinterleave dst_r_bpp, dst_r_basereg + + process_pixblock_head +.if cache_preload_flag != 0 + cache_preload 0, pixblock_size + cache_preload_simple +.endif + process_pixblock_tail + pixinterleave dst_w_bpp, dst_w_basereg +.irp chunk_size, 16, 8, 4, 2, 1 +.if pixblock_size > chunk_size + tst W, #chunk_size + beq 1f +.if dst_aligned_flag != 0 + pixst_a chunk_size, dst_w_bpp, dst_w_basereg, DST_W +.else + pixst chunk_size, dst_w_bpp, dst_w_basereg, DST_W +.endif +1: +.endif +.endr +2: +.endm + +/* + * Macro, which performs all the needed operations to switch to the next + * scanline and start the next loop iteration unless all the scanlines + * are already processed. + */ +.macro advance_to_next_scanline start_of_loop_label +.if regs_shortage + ldrd W, [sp] /* load W and H (width and height) from stack */ +.else + mov W, ORIG_W +.endif + add DST_W, DST_W, DST_STRIDE, lsl #dst_bpp_shift +.if src_bpp != 0 + add SRC, SRC, SRC_STRIDE, lsl #src_bpp_shift +.endif +.if mask_bpp != 0 + add MASK, MASK, MASK_STRIDE, lsl #mask_bpp_shift +.endif +.if (dst_w_bpp != 24) + sub DST_W, DST_W, W, lsl #dst_bpp_shift +.endif +.if (src_bpp != 24) && (src_bpp != 0) + sub SRC, SRC, W, lsl #src_bpp_shift +.endif +.if (mask_bpp != 24) && (mask_bpp != 0) + sub MASK, MASK, W, lsl #mask_bpp_shift +.endif + subs H, H, #1 + mov DST_R, DST_W +.if regs_shortage + str H, [sp, #4] /* save updated height to stack */ +.endif + bge start_of_loop_label +.endm + +/* + * Registers are allocated in the following way by default: + * d0, d1, d2, d3 - reserved for loading source pixel data + * d4, d5, d6, d7 - reserved for loading destination pixel data + * d24, d25, d26, d27 - reserved for loading mask pixel data + * d28, d29, d30, d31 - final destination pixel data for writeback to memory + */ +.macro generate_composite_function fname, \ + src_bpp_, \ + mask_bpp_, \ + dst_w_bpp_, \ + flags, \ + pixblock_size_, \ + prefetch_distance, \ + init, \ + cleanup, \ + process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head, \ + dst_w_basereg_ = 28, \ + dst_r_basereg_ = 4, \ + src_basereg_ = 0, \ + mask_basereg_ = 24 + + pixman_asm_function fname + + push {r4-r12, lr} /* save all registers */ + +/* + * Select prefetch type for this function. If prefetch distance is + * set to 0 or one of the color formats is 24bpp, SIMPLE prefetch + * has to be used instead of ADVANCED. + */ + .set PREFETCH_TYPE_CURRENT, PREFETCH_TYPE_DEFAULT +.if prefetch_distance == 0 + .set PREFETCH_TYPE_CURRENT, PREFETCH_TYPE_NONE +.elseif (PREFETCH_TYPE_CURRENT > PREFETCH_TYPE_SIMPLE) && \ + ((src_bpp_ == 24) || (mask_bpp_ == 24) || (dst_w_bpp_ == 24)) + .set PREFETCH_TYPE_CURRENT, PREFETCH_TYPE_SIMPLE +.endif + +/* + * Make some macro arguments globally visible and accessible + * from other macros + */ + .set src_bpp, src_bpp_ + .set mask_bpp, mask_bpp_ + .set dst_w_bpp, dst_w_bpp_ + .set pixblock_size, pixblock_size_ + .set dst_w_basereg, dst_w_basereg_ + .set dst_r_basereg, dst_r_basereg_ + .set src_basereg, src_basereg_ + .set mask_basereg, mask_basereg_ + + .macro pixld_src x:vararg + pixld x + .endm + .macro fetch_src_pixblock + pixld_src pixblock_size, src_bpp, \ + (src_basereg - pixblock_size * src_bpp / 64), SRC + .endm +/* + * Assign symbolic names to registers + */ + W .req r0 /* width (is updated during processing) */ + H .req r1 /* height (is updated during processing) */ + DST_W .req r2 /* destination buffer pointer for writes */ + DST_STRIDE .req r3 /* destination image stride */ + SRC .req r4 /* source buffer pointer */ + SRC_STRIDE .req r5 /* source image stride */ + DST_R .req r6 /* destination buffer pointer for reads */ + + MASK .req r7 /* mask pointer */ + MASK_STRIDE .req r8 /* mask stride */ + + PF_CTL .req r9 /* combined lines counter and prefetch */ + /* distance increment counter */ + PF_X .req r10 /* pixel index in a scanline for current */ + /* pretetch position */ + PF_SRC .req r11 /* pointer to source scanline start */ + /* for prefetch purposes */ + PF_DST .req r12 /* pointer to destination scanline start */ + /* for prefetch purposes */ + PF_MASK .req r14 /* pointer to mask scanline start */ + /* for prefetch purposes */ +/* + * Check whether we have enough registers for all the local variables. + * If we don't have enough registers, original width and height are + * kept on top of stack (and 'regs_shortage' variable is set to indicate + * this for the rest of code). Even if there are enough registers, the + * allocation scheme may be a bit different depending on whether source + * or mask is not used. + */ +.if (PREFETCH_TYPE_CURRENT < PREFETCH_TYPE_ADVANCED) + ORIG_W .req r10 /* saved original width */ + DUMMY .req r12 /* temporary register */ + .set regs_shortage, 0 +.elseif mask_bpp == 0 + ORIG_W .req r7 /* saved original width */ + DUMMY .req r8 /* temporary register */ + .set regs_shortage, 0 +.elseif src_bpp == 0 + ORIG_W .req r4 /* saved original width */ + DUMMY .req r5 /* temporary register */ + .set regs_shortage, 0 +.else + ORIG_W .req r1 /* saved original width */ + DUMMY .req r1 /* temporary register */ + .set regs_shortage, 1 +.endif + + .set mask_bpp_shift, -1 +.if src_bpp == 32 + .set src_bpp_shift, 2 +.elseif src_bpp == 24 + .set src_bpp_shift, 0 +.elseif src_bpp == 16 + .set src_bpp_shift, 1 +.elseif src_bpp == 8 + .set src_bpp_shift, 0 +.elseif src_bpp == 0 + .set src_bpp_shift, -1 +.else + .error "requested src bpp (src_bpp) is not supported" +.endif +.if mask_bpp == 32 + .set mask_bpp_shift, 2 +.elseif mask_bpp == 24 + .set mask_bpp_shift, 0 +.elseif mask_bpp == 8 + .set mask_bpp_shift, 0 +.elseif mask_bpp == 0 + .set mask_bpp_shift, -1 +.else + .error "requested mask bpp (mask_bpp) is not supported" +.endif +.if dst_w_bpp == 32 + .set dst_bpp_shift, 2 +.elseif dst_w_bpp == 24 + .set dst_bpp_shift, 0 +.elseif dst_w_bpp == 16 + .set dst_bpp_shift, 1 +.elseif dst_w_bpp == 8 + .set dst_bpp_shift, 0 +.else + .error "requested dst bpp (dst_w_bpp) is not supported" +.endif + +.if (((flags) & FLAG_DST_READWRITE) != 0) + .set dst_r_bpp, dst_w_bpp +.else + .set dst_r_bpp, 0 +.endif +.if (((flags) & FLAG_DEINTERLEAVE_32BPP) != 0) + .set DEINTERLEAVE_32BPP_ENABLED, 1 +.else + .set DEINTERLEAVE_32BPP_ENABLED, 0 +.endif + +.if prefetch_distance < 0 || prefetch_distance > 15 + .error "invalid prefetch distance (prefetch_distance)" +.endif + +.if src_bpp > 0 + ldr SRC, [sp, #40] +.endif +.if mask_bpp > 0 + ldr MASK, [sp, #48] +.endif + PF mov PF_X, #0 +.if src_bpp > 0 + ldr SRC_STRIDE, [sp, #44] +.endif +.if mask_bpp > 0 + ldr MASK_STRIDE, [sp, #52] +.endif + mov DST_R, DST_W + +.if src_bpp == 24 + sub SRC_STRIDE, SRC_STRIDE, W + sub SRC_STRIDE, SRC_STRIDE, W, lsl #1 +.endif +.if mask_bpp == 24 + sub MASK_STRIDE, MASK_STRIDE, W + sub MASK_STRIDE, MASK_STRIDE, W, lsl #1 +.endif +.if dst_w_bpp == 24 + sub DST_STRIDE, DST_STRIDE, W + sub DST_STRIDE, DST_STRIDE, W, lsl #1 +.endif + +/* + * Setup advanced prefetcher initial state + */ + PF mov PF_SRC, SRC + PF mov PF_DST, DST_R + PF mov PF_MASK, MASK + /* PF_CTL = prefetch_distance | ((h - 1) << 4) */ + PF mov PF_CTL, H, lsl #4 + PF add PF_CTL, #(prefetch_distance - 0x10) + + init +.if regs_shortage + push {r0, r1} +.endif + subs H, H, #1 +.if regs_shortage + str H, [sp, #4] /* save updated height to stack */ +.else + mov ORIG_W, W +.endif + blt 9f + cmp W, #(pixblock_size * 2) + blt 8f +/* + * This is the start of the pipelined loop, which if optimized for + * long scanlines + */ +0: + ensure_destination_ptr_alignment process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head + + /* Implement "head (tail_head) ... (tail_head) tail" loop pattern */ + pixld_a pixblock_size, dst_r_bpp, \ + (dst_r_basereg - pixblock_size * dst_r_bpp / 64), DST_R + fetch_src_pixblock + pixld pixblock_size, mask_bpp, \ + (mask_basereg - pixblock_size * mask_bpp / 64), MASK + PF add PF_X, PF_X, #pixblock_size + process_pixblock_head + cache_preload 0, pixblock_size + cache_preload_simple + subs W, W, #(pixblock_size * 2) + blt 2f +1: + process_pixblock_tail_head + cache_preload_simple + subs W, W, #pixblock_size + bge 1b +2: + process_pixblock_tail + pixst_a pixblock_size, dst_w_bpp, \ + (dst_w_basereg - pixblock_size * dst_w_bpp / 64), DST_W + + /* Process the remaining trailing pixels in the scanline */ + process_trailing_pixels 1, 1, \ + process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head + advance_to_next_scanline 0b + +.if regs_shortage + pop {r0, r1} +.endif + cleanup + pop {r4-r12, pc} /* exit */ +/* + * This is the start of the loop, designed to process images with small width + * (less than pixblock_size * 2 pixels). In this case neither pipelining + * nor prefetch are used. + */ +8: + /* Process exactly pixblock_size pixels if needed */ + tst W, #pixblock_size + beq 1f + pixld pixblock_size, dst_r_bpp, \ + (dst_r_basereg - pixblock_size * dst_r_bpp / 64), DST_R + fetch_src_pixblock + pixld pixblock_size, mask_bpp, \ + (mask_basereg - pixblock_size * mask_bpp / 64), MASK + process_pixblock_head + process_pixblock_tail + pixst pixblock_size, dst_w_bpp, \ + (dst_w_basereg - pixblock_size * dst_w_bpp / 64), DST_W +1: + /* Process the remaining trailing pixels in the scanline */ + process_trailing_pixels 0, 0, \ + process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head + advance_to_next_scanline 8b +9: +.if regs_shortage + pop {r0, r1} +.endif + cleanup + pop {r4-r12, pc} /* exit */ + + .purgem fetch_src_pixblock + .purgem pixld_src + + .unreq SRC + .unreq MASK + .unreq DST_R + .unreq DST_W + .unreq ORIG_W + .unreq W + .unreq H + .unreq SRC_STRIDE + .unreq DST_STRIDE + .unreq MASK_STRIDE + .unreq PF_CTL + .unreq PF_X + .unreq PF_SRC + .unreq PF_DST + .unreq PF_MASK + .unreq DUMMY + .endfunc +.endm + +/* + * A simplified variant of function generation template for a single + * scanline processing (for implementing pixman combine functions) + */ +.macro generate_composite_function_scanline use_nearest_scaling, \ + fname, \ + src_bpp_, \ + mask_bpp_, \ + dst_w_bpp_, \ + flags, \ + pixblock_size_, \ + init, \ + cleanup, \ + process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head, \ + dst_w_basereg_ = 28, \ + dst_r_basereg_ = 4, \ + src_basereg_ = 0, \ + mask_basereg_ = 24 + + pixman_asm_function fname + + .set PREFETCH_TYPE_CURRENT, PREFETCH_TYPE_NONE +/* + * Make some macro arguments globally visible and accessible + * from other macros + */ + .set src_bpp, src_bpp_ + .set mask_bpp, mask_bpp_ + .set dst_w_bpp, dst_w_bpp_ + .set pixblock_size, pixblock_size_ + .set dst_w_basereg, dst_w_basereg_ + .set dst_r_basereg, dst_r_basereg_ + .set src_basereg, src_basereg_ + .set mask_basereg, mask_basereg_ + +.if use_nearest_scaling != 0 + /* + * Assign symbolic names to registers for nearest scaling + */ + W .req r0 + DST_W .req r1 + SRC .req r2 + VX .req r3 + UNIT_X .req ip + MASK .req lr + TMP1 .req r4 + TMP2 .req r5 + DST_R .req r6 + SRC_WIDTH_FIXED .req r7 + + .macro pixld_src x:vararg + pixld_s x + .endm + + ldr UNIT_X, [sp] + push {r4-r8, lr} + ldr SRC_WIDTH_FIXED, [sp, #(24 + 4)] + .if mask_bpp != 0 + ldr MASK, [sp, #(24 + 8)] + .endif +.else + /* + * Assign symbolic names to registers + */ + W .req r0 /* width (is updated during processing) */ + DST_W .req r1 /* destination buffer pointer for writes */ + SRC .req r2 /* source buffer pointer */ + DST_R .req ip /* destination buffer pointer for reads */ + MASK .req r3 /* mask pointer */ + + .macro pixld_src x:vararg + pixld x + .endm +.endif + +.if (((flags) & FLAG_DST_READWRITE) != 0) + .set dst_r_bpp, dst_w_bpp +.else + .set dst_r_bpp, 0 +.endif +.if (((flags) & FLAG_DEINTERLEAVE_32BPP) != 0) + .set DEINTERLEAVE_32BPP_ENABLED, 1 +.else + .set DEINTERLEAVE_32BPP_ENABLED, 0 +.endif + + .macro fetch_src_pixblock + pixld_src pixblock_size, src_bpp, \ + (src_basereg - pixblock_size * src_bpp / 64), SRC + .endm + + init + mov DST_R, DST_W + + cmp W, #pixblock_size + blt 8f + + ensure_destination_ptr_alignment process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head + + subs W, W, #pixblock_size + blt 7f + + /* Implement "head (tail_head) ... (tail_head) tail" loop pattern */ + pixld_a pixblock_size, dst_r_bpp, \ + (dst_r_basereg - pixblock_size * dst_r_bpp / 64), DST_R + fetch_src_pixblock + pixld pixblock_size, mask_bpp, \ + (mask_basereg - pixblock_size * mask_bpp / 64), MASK + process_pixblock_head + subs W, W, #pixblock_size + blt 2f +1: + process_pixblock_tail_head + subs W, W, #pixblock_size + bge 1b +2: + process_pixblock_tail + pixst_a pixblock_size, dst_w_bpp, \ + (dst_w_basereg - pixblock_size * dst_w_bpp / 64), DST_W +7: + /* Process the remaining trailing pixels in the scanline (dst aligned) */ + process_trailing_pixels 0, 1, \ + process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head + + cleanup +.if use_nearest_scaling != 0 + pop {r4-r8, pc} /* exit */ +.else + bx lr /* exit */ +.endif +8: + /* Process the remaining trailing pixels in the scanline (dst unaligned) */ + process_trailing_pixels 0, 0, \ + process_pixblock_head, \ + process_pixblock_tail, \ + process_pixblock_tail_head + + cleanup + +.if use_nearest_scaling != 0 + pop {r4-r8, pc} /* exit */ + + .unreq DST_R + .unreq SRC + .unreq W + .unreq VX + .unreq UNIT_X + .unreq TMP1 + .unreq TMP2 + .unreq DST_W + .unreq MASK + .unreq SRC_WIDTH_FIXED + +.else + bx lr /* exit */ + + .unreq SRC + .unreq MASK + .unreq DST_R + .unreq DST_W + .unreq W +.endif + + .purgem fetch_src_pixblock + .purgem pixld_src + + .endfunc +.endm + +.macro generate_composite_function_single_scanline x:vararg + generate_composite_function_scanline 0, x +.endm + +.macro generate_composite_function_nearest_scanline x:vararg + generate_composite_function_scanline 1, x +.endm + +/* Default prologue/epilogue, nothing special needs to be done */ + +.macro default_init +.endm + +.macro default_cleanup +.endm + +/* + * Prologue/epilogue variant which additionally saves/restores d8-d15 + * registers (they need to be saved/restored by callee according to ABI). + * This is required if the code needs to use all the NEON registers. + */ + +.macro default_init_need_all_regs + vpush {d8-d15} +.endm + +.macro default_cleanup_need_all_regs + vpop {d8-d15} +.endm + +/******************************************************************************/ diff --git a/vendor/github.com/Benau/go_rlottie/vector_stb_stb_image.cpp b/vendor/github.com/Benau/go_rlottie/vector_stb_stb_image.cpp new file mode 100644 index 00000000..6fd89c88 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_stb_stb_image.cpp @@ -0,0 +1,59 @@ +/* + * configure stb_image about + * the image we will support + */ +#define STB_IMAGE_IMPLEMENTATION + +#define STBI_ONLY_JPEG +#define STBI_ONLY_PNG +#define STBI_NO_HDR +#define STBI_NO_LINEAR +#define STBI_NO_GIF +#define STBI_NO_PIC + +#include "vector_stb_stb_image.h" + +#if defined _WIN32 || defined __CYGWIN__ + #ifdef RLOTTIE_BUILD + #define RLOTTIE_API __declspec(dllexport) + #else + #define RLOTTIE_API __declspec(dllimport) + #endif +#else + #ifdef RLOTTIE_BUILD + #define RLOTTIE_API __attribute__ ((visibility ("default"))) + #else + #define RLOTTIE_API + #endif +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * exported function wrapper from the library + */ + +RLOTTIE_API unsigned char *lottie_image_load(char const *filename, int *x, + int *y, int *comp, int req_comp) +{ + return stbi_load(filename, x, y, comp, req_comp); +} + +RLOTTIE_API unsigned char *lottie_image_load_from_data(const char *imageData, + int len, int *x, int *y, + int *comp, int req_comp) +{ + unsigned char *data = (unsigned char *)imageData; + return stbi_load_from_memory(data, len, x, y, comp, req_comp); +} + +RLOTTIE_API void lottie_image_free(unsigned char *data) +{ + stbi_image_free(data); +} + +#ifdef __cplusplus +} +#endif diff --git a/vendor/github.com/Benau/go_rlottie/vector_stb_stb_image.h b/vendor/github.com/Benau/go_rlottie/vector_stb_stb_image.h new file mode 100644 index 00000000..56f81830 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_stb_stb_image.h @@ -0,0 +1,7509 @@ +/* stb_image - v2.19 - public domain image loader - http://nothings.org/stb + no warranty implied; use at your own risk + + Do this: + #define STB_IMAGE_IMPLEMENTATION + before you include this file in *one* C or C++ file to create the implementation. + + // i.e. it should look like this: + #include ... + #include ... + #include ... + #define STB_IMAGE_IMPLEMENTATION + #include "stb_image.h" + + You can #define STBI_ASSERT(x) before the #include to avoid using assert.h. + And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free + + + QUICK NOTES: + Primarily of interest to game developers and other people who can + avoid problematic images and only need the trivial interface + + JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib) + PNG 1/2/4/8/16-bit-per-channel + + TGA (not sure what subset, if a subset) + BMP non-1bpp, non-RLE + PSD (composited view only, no extra channels, 8/16 bit-per-channel) + + GIF (*comp always reports as 4-channel) + HDR (radiance rgbE format) + PIC (Softimage PIC) + PNM (PPM and PGM binary only) + + Animated GIF still needs a proper API, but here's one way to do it: + http://gist.github.com/urraka/685d9a6340b26b830d49 + + - decode from memory or through FILE (define STBI_NO_STDIO to remove code) + - decode from arbitrary I/O callbacks + - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON) + + Full documentation under "DOCUMENTATION" below. + + +LICENSE + + See end of file for license information. + +RECENT REVISION HISTORY: + + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings + 2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes + 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 + RGB-format JPEG; remove white matting in PSD; + allocate large structures on the stack; + correct channel count for PNG & BMP + 2.10 (2016-01-22) avoid warning introduced in 2.09 + 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED + + See end of file for full revision history. + + + ============================ Contributors ========================= + + Image formats Extensions, features + Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info) + Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info) + Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG) + Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks) + Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG) + Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip) + Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD) + github:urraka (animated gif) Junggon Kim (PNM comments) + Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA) + socks-the-fox (16-bit PNG) + Jeremy Sawicki (handle all ImageNet JPGs) + Optimizations & bugfixes Mikhail Morozov (1-bit BMP) + Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query) + Arseny Kapoulkine + John-Mark Allen + + Bug & warning fixes + Marc LeBlanc David Woo Guillaume George Martins Mozeiko + Christpher Lloyd Jerry Jansson Joseph Thomson Phil Jordan + Dave Moore Roy Eltham Hayaki Saito Nathan Reed + Won Chun Luke Graham Johan Duparc Nick Verigakis + the Horde3D community Thomas Ruf Ronny Chevalier github:rlyeh + Janez Zemva John Bartholomew Michal Cichon github:romigrou + Jonathan Blow Ken Hamada Tero Hanninen github:svdijk + Laurent Gomila Cort Stratton Sergio Gonzalez github:snagar + Aruelien Pocheville Thibault Reuille Cass Everitt github:Zelex + Ryamond Barbiero Paul Du Bois Engin Manap github:grim210 + Aldo Culquicondor Philipp Wiesemann Dale Weiler github:sammyhw + Oriol Ferrer Mesia Josh Tobin Matthew Gregan github:phprus + Julian Raschke Gregory Mullen Baldur Karlsson github:poppolopoppo + Christian Floisand Kevin Schmidt github:darealshinji + Blazej Dariusz Roszkowski github:Michaelangel007 +*/ + +#ifndef STBI_INCLUDE_STB_IMAGE_H +#define STBI_INCLUDE_STB_IMAGE_H + +// DOCUMENTATION +// +// Limitations: +// - no 12-bit-per-channel JPEG +// - no JPEGs with arithmetic coding +// - GIF always returns *comp=4 +// +// Basic usage (see HDR discussion below for HDR usage): +// int x,y,n; +// unsigned char *data = stbi_load(filename, &x, &y, &n, 0); +// // ... process data if not NULL ... +// // ... x = width, y = height, n = # 8-bit components per pixel ... +// // ... replace '0' with '1'..'4' to force that many components per pixel +// // ... but 'n' will always be the number that it would have been if you said 0 +// stbi_image_free(data) +// +// Standard parameters: +// int *x -- outputs image width in pixels +// int *y -- outputs image height in pixels +// int *channels_in_file -- outputs # of image components in image file +// int desired_channels -- if non-zero, # of image components requested in result +// +// The return value from an image loader is an 'unsigned char *' which points +// to the pixel data, or NULL on an allocation failure or if the image is +// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels, +// with each pixel consisting of N interleaved 8-bit components; the first +// pixel pointed to is top-left-most in the image. There is no padding between +// image scanlines or between pixels, regardless of format. The number of +// components N is 'desired_channels' if desired_channels is non-zero, or +// *channels_in_file otherwise. If desired_channels is non-zero, +// *channels_in_file has the number of components that _would_ have been +// output otherwise. E.g. if you set desired_channels to 4, you will always +// get RGBA output, but you can check *channels_in_file to see if it's trivially +// opaque because e.g. there were only 3 channels in the source image. +// +// An output image with N components has the following components interleaved +// in this order in each pixel: +// +// N=#comp components +// 1 grey +// 2 grey, alpha +// 3 red, green, blue +// 4 red, green, blue, alpha +// +// If image loading fails for any reason, the return value will be NULL, +// and *x, *y, *channels_in_file will be unchanged. The function +// stbi_failure_reason() can be queried for an extremely brief, end-user +// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS +// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly +// more user-friendly ones. +// +// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized. +// +// =========================================================================== +// +// Philosophy +// +// stb libraries are designed with the following priorities: +// +// 1. easy to use +// 2. easy to maintain +// 3. good performance +// +// Sometimes I let "good performance" creep up in priority over "easy to maintain", +// and for best performance I may provide less-easy-to-use APIs that give higher +// performance, in addition to the easy to use ones. Nevertheless, it's important +// to keep in mind that from the standpoint of you, a client of this library, +// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all. +// +// Some secondary priorities arise directly from the first two, some of which +// make more explicit reasons why performance can't be emphasized. +// +// - Portable ("ease of use") +// - Small source code footprint ("easy to maintain") +// - No dependencies ("ease of use") +// +// =========================================================================== +// +// I/O callbacks +// +// I/O callbacks allow you to read from arbitrary sources, like packaged +// files or some other source. Data read from callbacks are processed +// through a small internal buffer (currently 128 bytes) to try to reduce +// overhead. +// +// The three functions you must define are "read" (reads some bytes of data), +// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end). +// +// =========================================================================== +// +// SIMD support +// +// The JPEG decoder will try to automatically use SIMD kernels on x86 when +// supported by the compiler. For ARM Neon support, you must explicitly +// request it. +// +// (The old do-it-yourself SIMD API is no longer supported in the current +// code.) +// +// On x86, SSE2 will automatically be used when available based on a run-time +// test; if not, the generic C versions are used as a fall-back. On ARM targets, +// the typical path is to have separate builds for NEON and non-NEON devices +// (at least this is true for iOS and Android). Therefore, the NEON support is +// toggled by a build flag: define STBI_NEON to get NEON loops. +// +// If for some reason you do not want to use any of SIMD code, or if +// you have issues compiling it, you can disable it entirely by +// defining STBI_NO_SIMD. +// +// =========================================================================== +// +// HDR image support (disable by defining STBI_NO_HDR) +// +// stb_image now supports loading HDR images in general, and currently +// the Radiance .HDR file format, although the support is provided +// generically. You can still load any file through the existing interface; +// if you attempt to load an HDR file, it will be automatically remapped to +// LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1; +// both of these constants can be reconfigured through this interface: +// +// stbi_hdr_to_ldr_gamma(2.2f); +// stbi_hdr_to_ldr_scale(1.0f); +// +// (note, do not use _inverse_ constants; stbi_image will invert them +// appropriately). +// +// Additionally, there is a new, parallel interface for loading files as +// (linear) floats to preserve the full dynamic range: +// +// float *data = stbi_loadf(filename, &x, &y, &n, 0); +// +// If you load LDR images through this interface, those images will +// be promoted to floating point values, run through the inverse of +// constants corresponding to the above: +// +// stbi_ldr_to_hdr_scale(1.0f); +// stbi_ldr_to_hdr_gamma(2.2f); +// +// Finally, given a filename (or an open file or memory block--see header +// file for details) containing image data, you can query for the "most +// appropriate" interface to use (that is, whether the image is HDR or +// not), using: +// +// stbi_is_hdr(char *filename); +// +// =========================================================================== +// +// iPhone PNG support: +// +// By default we convert iphone-formatted PNGs back to RGB, even though +// they are internally encoded differently. You can disable this conversion +// by by calling stbi_convert_iphone_png_to_rgb(0), in which case +// you will always just get the native iphone "format" through (which +// is BGR stored in RGB). +// +// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per +// pixel to remove any premultiplied alpha *only* if the image file explicitly +// says there's premultiplied data (currently only happens in iPhone images, +// and only if iPhone convert-to-rgb processing is on). +// +// =========================================================================== +// +// ADDITIONAL CONFIGURATION +// +// - You can suppress implementation of any of the decoders to reduce +// your code footprint by #defining one or more of the following +// symbols before creating the implementation. +// +// STBI_NO_JPEG +// STBI_NO_PNG +// STBI_NO_BMP +// STBI_NO_PSD +// STBI_NO_TGA +// STBI_NO_GIF +// STBI_NO_HDR +// STBI_NO_PIC +// STBI_NO_PNM (.ppm and .pgm) +// +// - You can request *only* certain decoders and suppress all other ones +// (this will be more forward-compatible, as addition of new decoders +// doesn't require you to disable them explicitly): +// +// STBI_ONLY_JPEG +// STBI_ONLY_PNG +// STBI_ONLY_BMP +// STBI_ONLY_PSD +// STBI_ONLY_TGA +// STBI_ONLY_GIF +// STBI_ONLY_HDR +// STBI_ONLY_PIC +// STBI_ONLY_PNM (.ppm and .pgm) +// +// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still +// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB +// + + +#ifndef STBI_NO_STDIO +#include <stdio.h> +#endif // STBI_NO_STDIO + +#if defined _WIN32 || defined __CYGWIN__ +#include <windows.h> +#endif // defined _WIN32 || defined __CYGWIN__ + +#define STBI_VERSION 1 + +enum +{ + STBI_default = 0, // only used for desired_channels + + STBI_grey = 1, + STBI_grey_alpha = 2, + STBI_rgb = 3, + STBI_rgb_alpha = 4 +}; + +typedef unsigned char stbi_uc; +typedef unsigned short stbi_us; + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef STB_IMAGE_STATIC +#define STBIDEF static +#else +#define STBIDEF extern +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// PRIMARY API - works on images of any type +// + +// +// load image by filename, open file, or memory buffer +// + +typedef struct +{ + int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read + void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative + int (*eof) (void *user); // returns nonzero if we are at end of file/data +} stbi_io_callbacks; + +//////////////////////////////////// +// +// 8-bits-per-channel interface +// + +STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels); +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +#endif + + +#ifndef STBI_NO_STDIO +STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +// for stbi_load_from_file, file pointer is left pointing immediately after image +#endif + +//////////////////////////////////// +// +// 16-bits-per-channel interface +// + +STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +#endif + +//////////////////////////////////// +// +// float-per-channel interface +// +#ifndef STBI_NO_LINEAR + STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + + #ifndef STBI_NO_STDIO + STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); + #endif +#endif + +#ifndef STBI_NO_HDR + STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); + STBIDEF void stbi_hdr_to_ldr_scale(float scale); +#endif // STBI_NO_HDR + +#ifndef STBI_NO_LINEAR + STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); + STBIDEF void stbi_ldr_to_hdr_scale(float scale); +#endif // STBI_NO_LINEAR + +// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user); +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len); +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename); +STBIDEF int stbi_is_hdr_from_file(FILE *f); +#endif // STBI_NO_STDIO + + +// get a VERY brief reason for failure +// NOT THREADSAFE +STBIDEF const char *stbi_failure_reason (void); + +// free the loaded image -- this is just free() +STBIDEF void stbi_image_free (void *retval_from_stbi_load); + +// get image dimensions & components without fully decoding +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len); +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user); + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit (char const *filename); +STBIDEF int stbi_is_16_bit_from_file(FILE *f); +#endif + + + +// for image formats that explicitly notate that they have premultiplied alpha, +// we just return the colors as stored in the file. set this flag to force +// unpremultiplication. results are undefined if the unpremultiply overflow. +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply); + +// indicate whether we should process iphone images back to canonical format, +// or just pass them through "as-is" +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert); + +// flip the image vertically, so the first pixel in the output array is the bottom left +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip); + +// ZLIB client - used by PNG, available for other purposes + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header); +STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + +STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + + +#ifdef __cplusplus +} +#endif + +// +// +//// end header file ///////////////////////////////////////////////////// +#endif // STBI_INCLUDE_STB_IMAGE_H + +#ifdef STB_IMAGE_IMPLEMENTATION + +#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \ + || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \ + || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \ + || defined(STBI_ONLY_ZLIB) + #ifndef STBI_ONLY_JPEG + #define STBI_NO_JPEG + #endif + #ifndef STBI_ONLY_PNG + #define STBI_NO_PNG + #endif + #ifndef STBI_ONLY_BMP + #define STBI_NO_BMP + #endif + #ifndef STBI_ONLY_PSD + #define STBI_NO_PSD + #endif + #ifndef STBI_ONLY_TGA + #define STBI_NO_TGA + #endif + #ifndef STBI_ONLY_GIF + #define STBI_NO_GIF + #endif + #ifndef STBI_ONLY_HDR + #define STBI_NO_HDR + #endif + #ifndef STBI_ONLY_PIC + #define STBI_NO_PIC + #endif + #ifndef STBI_ONLY_PNM + #define STBI_NO_PNM + #endif +#endif + +#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB) +#define STBI_NO_ZLIB +#endif + + +#include <stdarg.h> +#include <stddef.h> // ptrdiff_t on osx +#include <stdlib.h> +#include <string.h> +#include <limits.h> + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +#include <math.h> // ldexp, pow +#endif + +#ifndef STBI_NO_STDIO +#include <stdio.h> +#endif + +#ifndef STBI_ASSERT +#include <assert.h> +#define STBI_ASSERT(x) assert(x) +#endif + + +#ifndef _MSC_VER + #ifdef __cplusplus + #define stbi_inline inline + #else + #define stbi_inline + #endif +#else + #define stbi_inline __forceinline +#endif + + +#ifdef _MSC_VER +typedef unsigned short stbi__uint16; +typedef signed short stbi__int16; +typedef unsigned int stbi__uint32; +typedef signed int stbi__int32; +#else +#include <stdint.h> +typedef uint16_t stbi__uint16; +typedef int16_t stbi__int16; +typedef uint32_t stbi__uint32; +typedef int32_t stbi__int32; +#endif + +// should produce compiler error if size is wrong +typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; + +#ifdef _MSC_VER +#define STBI_NOTUSED(v) (void)(v) +#else +#define STBI_NOTUSED(v) (void)sizeof(v) +#endif + +#ifdef _MSC_VER +#define STBI_HAS_LROTL +#endif + +#ifdef STBI_HAS_LROTL + #define stbi_lrot(x,y) _lrotl(x,y) +#else + #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (32 - (y)))) +#endif + +#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED)) +// ok +#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED) +// ok +#else +#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)." +#endif + +#ifndef STBI_MALLOC +#define STBI_MALLOC(sz) malloc(sz) +#define STBI_REALLOC(p,newsz) realloc(p,newsz) +#define STBI_FREE(p) free(p) +#endif + +#ifndef STBI_REALLOC_SIZED +#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz) +#endif + +// x86/x64 detection +#if defined(__x86_64__) || defined(_M_X64) +#define STBI__X64_TARGET +#elif defined(__i386) || defined(_M_IX86) +#define STBI__X86_TARGET +#endif + +#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD) +// gcc doesn't support sse2 intrinsics unless you compile with -msse2, +// which in turn means it gets to use SSE2 everywhere. This is unfortunate, +// but previous attempts to provide the SSE2 functions with runtime +// detection caused numerous issues. The way architecture extensions are +// exposed in GCC/Clang is, sadly, not really suited for one-file libs. +// New behavior: if compiled with -msse2, we use SSE2 without any +// detection; if not, we don't use it at all. +#define STBI_NO_SIMD +#endif + +#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD) +// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET +// +// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the +// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant. +// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not +// simultaneously enabling "-mstackrealign". +// +// See https://github.com/nothings/stb/issues/81 for more information. +// +// So default to no SSE2 on 32-bit MinGW. If you've read this far and added +// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2. +#define STBI_NO_SIMD +#endif + +#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) +#define STBI_SSE2 +#include <emmintrin.h> + +#ifdef _MSC_VER + +#if _MSC_VER >= 1400 // not VC6 +#include <intrin.h> // __cpuid +static int stbi__cpuid3(void) +{ + int info[4]; + __cpuid(info,1); + return info[3]; +} +#else +static int stbi__cpuid3(void) +{ + int res; + __asm { + mov eax,1 + cpuid + mov res,edx + } + return res; +} +#endif + +#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name + +static int stbi__sse2_available(void) +{ + int info3 = stbi__cpuid3(); + return ((info3 >> 26) & 1) != 0; +} +#else // assume GCC-style if not VC++ +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) + +static int stbi__sse2_available(void) +{ + // If we're even attempting to compile this on GCC/Clang, that means + // -msse2 is on, which means the compiler is allowed to use SSE2 + // instructions at will, and so are we. + return 1; +} +#endif +#endif + +// ARM NEON +#if defined(STBI_NO_SIMD) && defined(STBI_NEON) +#undef STBI_NEON +#endif + +#ifdef STBI_NEON +#include <arm_neon.h> +// assume GCC or Clang on ARM targets +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) +#endif + +#ifndef STBI_SIMD_ALIGN +#define STBI_SIMD_ALIGN(type, name) type name +#endif + +/////////////////////////////////////////////// +// +// stbi__context struct and start_xxx functions + +// stbi__context structure is our basic context used by all images, so it +// contains all the IO context, plus some basic image information +typedef struct +{ + stbi__uint32 img_x, img_y; + int img_n, img_out_n; + + stbi_io_callbacks io; + void *io_user_data; + + int read_from_callbacks; + int buflen; + stbi_uc buffer_start[128]; + + stbi_uc *img_buffer, *img_buffer_end; + stbi_uc *img_buffer_original, *img_buffer_original_end; +} stbi__context; + + +static void stbi__refill_buffer(stbi__context *s); + +// initialize a memory-decode context +static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len) +{ + s->io.read = NULL; + s->read_from_callbacks = 0; + s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer; + s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len; +} + +// initialize a callback-based context +static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user) +{ + s->io = *c; + s->io_user_data = user; + s->buflen = sizeof(s->buffer_start); + s->read_from_callbacks = 1; + s->img_buffer_original = s->buffer_start; + stbi__refill_buffer(s); + s->img_buffer_original_end = s->img_buffer_end; +} + +// this is not threadsafe +static const char *stbi__g_failure_reason; + +STBIDEF const char *stbi_failure_reason(void) +{ + return stbi__g_failure_reason; +} + +static int stbi__err(const char *str) +{ + stbi__g_failure_reason = str; + return 0; +} + +static void *stbi__malloc(size_t size) +{ + return STBI_MALLOC(size); +} + + +#ifndef STBI_NO_STDIO + +static int stbi__stdio_read(void *user, char *data, int size) +{ + return (int) fread(data,1,size,(FILE*) user); +} + +static void stbi__stdio_skip(void *user, int n) +{ + if (fseek((FILE*) user, n, SEEK_CUR) == -1) + stbi__err("fseek() error"); +} + +static int stbi__stdio_eof(void *user) +{ + return feof((FILE*) user); +} + +static stbi_io_callbacks stbi__stdio_callbacks = +{ + stbi__stdio_read, + stbi__stdio_skip, + stbi__stdio_eof, +}; + +static void stbi__start_file(stbi__context *s, FILE *f) +{ + stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f); +} + +//static void stop_file(stbi__context *s) { } + +#endif // !STBI_NO_STDIO + +static void stbi__rewind(stbi__context *s) +{ + // conceptually rewind SHOULD rewind to the beginning of the stream, + // but we just rewind to the beginning of the initial buffer, because + // we only use it after doing 'test', which only ever looks at at most 92 bytes + s->img_buffer = s->img_buffer_original; + s->img_buffer_end = s->img_buffer_original_end; +} + +enum +{ + STBI_ORDER_RGB, + STBI_ORDER_BGR +}; + +typedef struct +{ + int bits_per_channel; + int num_channels; + int channel_order; +} stbi__result_info; + +#ifndef STBI_NO_JPEG +static int stbi__jpeg_test(stbi__context *s); +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNG +static int stbi__png_test(stbi__context *s); +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__png_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_BMP +static int stbi__bmp_test(stbi__context *s); +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_TGA +static int stbi__tga_test(stbi__context *s); +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s); +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc); +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__psd_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_HDR +static int stbi__hdr_test(stbi__context *s); +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_test(stbi__context *s); +static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_GIF +static int stbi__gif_test(stbi__context *s); +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNM +static int stbi__pnm_test(stbi__context *s); +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +// stb_image uses ints pervasively, including for offset calculations. +// therefore the largest decoded image size we can support with the +// current code, even on 64-bit targets, is INT_MAX. this is not a +// significant limitation for the intended use case. +// +// we do, however, need to make sure our size calculations don't +// overflow. hence a few helper functions for size calculations that +// multiply integers together, making sure that they're non-negative +// and no overflow occurs. + +// return 1 if the sum is valid, 0 on overflow. +// negative terms are considered invalid. +static int stbi__addsizes_valid(int a, int b) +{ + if (b < 0) return 0; + // now 0 <= b <= INT_MAX, hence also + // 0 <= INT_MAX - b <= INTMAX. + // And "a + b <= INT_MAX" (which might overflow) is the + // same as a <= INT_MAX - b (no overflow) + return a <= INT_MAX - b; +} + +// returns 1 if the product is valid, 0 on overflow. +// negative factors are considered invalid. +static int stbi__mul2sizes_valid(int a, int b) +{ + if (a < 0 || b < 0) return 0; + if (b == 0) return 1; // mul-by-0 is always safe + // portable way to check for no overflows in a*b + return a <= INT_MAX/b; +} + +// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow +static int stbi__mad2sizes_valid(int a, int b, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add); +} + +// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow +static int stbi__mad3sizes_valid(int a, int b, int c, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__addsizes_valid(a*b*c, add); +} + +// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add); +} +#endif + +// mallocs with size overflow checking +static void *stbi__malloc_mad2(int a, int b, int add) +{ + if (!stbi__mad2sizes_valid(a, b, add)) return NULL; + return stbi__malloc(a*b + add); +} + +static void *stbi__malloc_mad3(int a, int b, int c, int add) +{ + if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL; + return stbi__malloc(a*b*c + add); +} + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static void *stbi__malloc_mad4(int a, int b, int c, int d, int add) +{ + if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; + return stbi__malloc(a*b*c*d + add); +} +#endif + +// stbi__err - error +// stbi__errpf - error returning pointer to float +// stbi__errpuc - error returning pointer to unsigned char + +#ifdef STBI_NO_FAILURE_STRINGS + #define stbi__err(x,y) 0 +#elif defined(STBI_FAILURE_USERMSG) + #define stbi__err(x,y) stbi__err(y) +#else + #define stbi__err(x,y) stbi__err(x) +#endif + +#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL)) +#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL)) + +STBIDEF void stbi_image_free(void *retval_from_stbi_load) +{ + STBI_FREE(retval_from_stbi_load); +} + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp); +#endif + +#ifndef STBI_NO_HDR +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp); +#endif + +static int stbi__vertically_flip_on_load = 0; + +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load = flag_true_if_should_flip; +} + +static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int /*bpc*/) +{ + memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields + ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed + ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order + ri->num_channels = 0; + + #ifndef STBI_NO_JPEG + if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNG + if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_BMP + if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_GIF + if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PSD + if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc); + #endif + #ifndef STBI_NO_PIC + if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNM + if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri); + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri); + return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); + } + #endif + + #ifndef STBI_NO_TGA + // test tga last because it's a crappy test! + if (stbi__tga_test(s)) + return stbi__tga_load(s,x,y,comp,req_comp, ri); + #endif + + return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); +} + +static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi_uc *reduced; + + reduced = (stbi_uc *) stbi__malloc(img_len); + if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling + + STBI_FREE(orig); + return reduced; +} + +static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi__uint16 *enlarged; + + enlarged = (stbi__uint16 *) stbi__malloc(img_len*2); + if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff + + STBI_FREE(orig); + return enlarged; +} + +static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel) +{ + int row; + size_t bytes_per_row = (size_t)w * bytes_per_pixel; + stbi_uc temp[2048]; + stbi_uc *bytes = (stbi_uc *)image; + + for (row = 0; row < (h>>1); row++) { + stbi_uc *row0 = bytes + row*bytes_per_row; + stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row; + // swap row0 with row1 + size_t bytes_left = bytes_per_row; + while (bytes_left) { + size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); + memcpy(temp, row0, bytes_copy); + memcpy(row0, row1, bytes_copy); + memcpy(row1, temp, bytes_copy); + row0 += bytes_copy; + row1 += bytes_copy; + bytes_left -= bytes_copy; + } + } +} + +#ifndef STBI_NO_GIF +static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel) +{ + int slice; + int slice_size = w * h * bytes_per_pixel; + + stbi_uc *bytes = (stbi_uc *)image; + for (slice = 0; slice < z; ++slice) { + stbi__vertical_flip(bytes, w, h, bytes_per_pixel); + bytes += slice_size; + } +} +#endif + +static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); + + if (result == NULL) + return NULL; + + if (ri.bits_per_channel != 8) { + STBI_ASSERT(ri.bits_per_channel == 16); + result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 8; + } + + // @TODO: move stbi__convert_format to here + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); + } + + return (unsigned char *) result; +} + +static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); + + if (result == NULL) + return NULL; + + if (ri.bits_per_channel != 16) { + STBI_ASSERT(ri.bits_per_channel == 8); + result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 16; + } + + // @TODO: move stbi__convert_format16 to here + // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); + } + + return (stbi__uint16 *) result; +} + +#if !defined(STBI_NO_HDR) || !defined(STBI_NO_LINEAR) +static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp) +{ + if (stbi__vertically_flip_on_load && result != NULL) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); + } +} +#endif + +#ifndef STBI_NO_STDIO + +static FILE *stbi__fopen(char const *filename, char const *mode) +{ + FILE *f; +#if defined(_MSC_VER) + DWORD cch = + MultiByteToWideChar(CP_UTF8, 0, filename, -1, nullptr, 0); + wchar_t *filenameU = new wchar_t[cch]; + if(!filenameU) + { + return 0; + } + MultiByteToWideChar(CP_UTF8, 0, filename, -1, filenameU, cch); + cch = MultiByteToWideChar(CP_UTF8, 0, mode, -1, nullptr, 0); + wchar_t *modeU = new wchar_t[cch]; + if(!modeU) + { + delete[] filenameU; + return 0; + } + MultiByteToWideChar(CP_UTF8, 0, mode, -1, modeU, cch); +#if _MSC_VER >= 1400 + if(0 != _wfopen_s(&f, filenameU, modeU)) + f = 0; + delete[] filenameU; + delete[] modeU; +#else // _MSC_VER >= 1400 + f = _wfopen(filenameU, modeU); + delete[] filenameU; + delete[] modeU; +#endif // _MSC_VER >= 1400 +#else // _MSC_VER + f = fopen(filename, mode); +#endif //_MSC_VER + return f; +} + + +STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + unsigned char *result; + if (!f) return stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + if (fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR) == -1) { + stbi_image_free(result); + return stbi__errpuc("fseek() error", "File Seek Fail"); + } + } + return result; +} + +STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__uint16 *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + if (fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR) == -1) { + stbi_image_free(result); + return (stbi__uint16 *) stbi__errpuc("fseek() error", "File Seek Fail"); + } + } + return result; +} + +STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + stbi__uint16 *result; + if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file_16(f,x,y,comp,req_comp); + fclose(f); + return result; +} + + +#endif //!STBI_NO_STDIO + +STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_mem(&s,buffer,len); + + result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); + if (stbi__vertically_flip_on_load) { + stbi__vertical_flip_slices( result, *x, *y, *z, *comp ); + } + + return result; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *data; + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + stbi__result_info ri; + float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri); + if (hdr_data) + stbi__float_postprocess(hdr_data,x,y,comp,req_comp); + return hdr_data; + } + #endif + data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); + if (data) + return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); + return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); +} + +STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_STDIO +STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + float *result; + FILE *f = stbi__fopen(filename, "rb"); + if (!f) return stbi__errpf("can't fopen", "Unable to open file"); + result = stbi_loadf_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_file(&s,f); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} +#endif // !STBI_NO_STDIO + +#endif // !STBI_NO_LINEAR + +// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is +// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always +// reports false! + +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(buffer); + STBI_NOTUSED(len); + return 0; + #endif +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result=0; + if (f) { + result = stbi_is_hdr_from_file(f); + fclose(f); + } + return result; +} + +STBIDEF int stbi_is_hdr_from_file(FILE *f) +{ + #ifndef STBI_NO_HDR + long pos = ftell(f); + int res; + stbi__context s; + stbi__start_file(&s,f); + res = stbi__hdr_test(&s); + if (fseek(f, pos, SEEK_SET) == -1) return stbi__err("fseek() error", "File Seek Fail"); + return res; + #else + STBI_NOTUSED(f); + return 0; + #endif +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(clbk); + STBI_NOTUSED(user); + return 0; + #endif +} + +#ifndef STBI_NO_LINEAR +static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f; + +STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; } +STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; } +#endif + +static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f; + +STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; } +STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; } + + +////////////////////////////////////////////////////////////////////////////// +// +// Common code used by all image loaders +// + +enum +{ + STBI__SCAN_load=0, + STBI__SCAN_type, + STBI__SCAN_header +}; + +static void stbi__refill_buffer(stbi__context *s) +{ + int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); + if (n == 0) { + // at end of file, treat same as if from memory, but need to handle case + // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file + s->read_from_callbacks = 0; + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start+1; + *s->img_buffer = 0; + } else { + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start + n; + } +} + +stbi_inline static stbi_uc stbi__get8(stbi__context *s) +{ + if (s->img_buffer < s->img_buffer_end) + return *s->img_buffer++; + if (s->read_from_callbacks) { + stbi__refill_buffer(s); + return *s->img_buffer++; + } + return 0; +} + +stbi_inline static int stbi__at_eof(stbi__context *s) +{ + if (s->io.read) { + if (!(s->io.eof)(s->io_user_data)) return 0; + // if feof() is true, check if buffer = end + // special case: we've only got the special 0 character at the end + if (s->read_from_callbacks == 0) return 1; + } + + return s->img_buffer >= s->img_buffer_end; +} + +static void stbi__skip(stbi__context *s, int n) +{ + if (n < 0) { + s->img_buffer = s->img_buffer_end; + return; + } + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + s->img_buffer = s->img_buffer_end; + (s->io.skip)(s->io_user_data, n - blen); + return; + } + } + s->img_buffer += n; +} + +static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n) +{ + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + int res, count; + + memcpy(buffer, s->img_buffer, blen); + + count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen); + res = (count == (n-blen)); + s->img_buffer = s->img_buffer_end; + return res; + } + } + + if (s->img_buffer+n <= s->img_buffer_end) { + memcpy(buffer, s->img_buffer, n); + s->img_buffer += n; + return 1; + } else + return 0; +} + +static int stbi__get16be(stbi__context *s) +{ + int z = stbi__get8(s); + return (z << 8) + stbi__get8(s); +} + +static stbi__uint32 stbi__get32be(stbi__context *s) +{ + stbi__uint32 z = stbi__get16be(s); + return (z << 16) + stbi__get16be(s); +} + +#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) +// nothing +#else +static int stbi__get16le(stbi__context *s) +{ + int z = stbi__get8(s); + return z + (stbi__get8(s) << 8); +} +#endif + +#ifndef STBI_NO_BMP +static stbi__uint32 stbi__get32le(stbi__context *s) +{ + stbi__uint32 z = stbi__get16le(s); + return z + (stbi__get16le(s) << 16); +} +#endif + +#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings + + +////////////////////////////////////////////////////////////////////////////// +// +// generic converter from built-in img_n to req_comp +// individual types do this automatically as much as possible (e.g. jpeg +// does all cases internally since it needs to colorspace convert anyway, +// and it never has alpha, so very few cases ). png can automatically +// interleave an alpha=255 channel, but falls back to this for other cases +// +// assume data buffer is malloced, so malloc a new one and free that one +// only failure mode is malloc failing + +static stbi_uc stbi__compute_y(int r, int g, int b) +{ + return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8); +} + +static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + unsigned char *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0); + if (good == NULL) { + STBI_FREE(data); + return stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + unsigned char *src = data + j * x * img_n ; + unsigned char *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0], dest[1]=255; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0], dest[3]=255; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0], dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0],dest[1]=src[1],dest[2]=src[2],dest[3]=255; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]), dest[1] = 255; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]), dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0],dest[1]=src[1],dest[2]=src[2]; } break; + default: STBI_ASSERT(0); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} + +static stbi__uint16 stbi__compute_y_16(int r, int g, int b) +{ + return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8); +} + +static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + stbi__uint16 *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2); + if (good == NULL) { + STBI_FREE(data); + return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + stbi__uint16 *src = data + j * x * img_n ; + stbi__uint16 *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0], dest[1]=0xffff; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0], dest[3]=0xffff; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0], dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0],dest[1]=src[1],dest[2]=src[2],dest[3]=0xffff; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]), dest[1] = 0xffff; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]), dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0],dest[1]=src[1],dest[2]=src[2]; } break; + default: STBI_ASSERT(0); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp) +{ + int i,k,n; + float *output; + if (!data) return NULL; + output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale); + } + if (k < comp) output[i*comp + k] = data[i*comp+k]/255.0f; + } + STBI_FREE(data); + return output; +} +#endif + +#ifndef STBI_NO_HDR +#define stbi__float2int(x) ((int) (x)) +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp) +{ + int i,k,n; + stbi_uc *output; + if (!data) return NULL; + output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + if (k < comp) { + float z = data[i*comp+k] * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + } + STBI_FREE(data); + return output; +} +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// "baseline" JPEG/JFIF decoder +// +// simple implementation +// - doesn't support delayed output of y-dimension +// - simple interface (only one output format: 8-bit interleaved RGB) +// - doesn't try to recover corrupt jpegs +// - doesn't allow partial loading, loading multiple at once +// - still fast on x86 (copying globals into locals doesn't help x86) +// - allocates lots of intermediate memory (full size of all components) +// - non-interleaved case requires this anyway +// - allows good upsampling (see next) +// high-quality +// - upsampled channels are bilinearly interpolated, even across blocks +// - quality integer IDCT derived from IJG's 'slow' +// performance +// - fast huffman; reasonable integer IDCT +// - some SIMD kernels for common paths on targets with SSE2/NEON +// - uses a lot of intermediate memory, could cache poorly + +#ifndef STBI_NO_JPEG + +// huffman decoding acceleration +#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache + +typedef struct +{ + stbi_uc fast[1 << FAST_BITS]; + // weirdly, repacking this into AoS is a 10% speed loss, instead of a win + stbi__uint16 code[256]; + stbi_uc values[256]; + stbi_uc size[257]; + unsigned int maxcode[18]; + int delta[17]; // old 'firstsymbol' - old 'firstcode' +} stbi__huffman; + +typedef struct +{ + stbi__context *s; + stbi__huffman huff_dc[4]; + stbi__huffman huff_ac[4]; + stbi__uint16 dequant[4][64]; + stbi__int16 fast_ac[4][1 << FAST_BITS]; + +// sizes for components, interleaved MCUs + int img_h_max, img_v_max; + int img_mcu_x, img_mcu_y; + int img_mcu_w, img_mcu_h; + +// definition of jpeg image component + struct + { + int id; + int h,v; + int tq; + int hd,ha; + int dc_pred; + + int x,y,w2,h2; + stbi_uc *data; + void *raw_data, *raw_coeff; + stbi_uc *linebuf; + short *coeff; // progressive only + int coeff_w, coeff_h; // number of 8x8 coefficient blocks + } img_comp[4]; + + stbi__uint32 code_buffer; // jpeg entropy-coded buffer + int code_bits; // number of valid bits + unsigned char marker; // marker seen while filling entropy buffer + int nomore; // flag if we saw a marker so must stop + + int progressive; + int spec_start; + int spec_end; + int succ_high; + int succ_low; + int eob_run; + int jfif; + int app14_color_transform; // Adobe APP14 tag + int rgb; + + int scan_n, order[4]; + int restart_interval, todo; + +// kernels + void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]); + void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step); + stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs); +} stbi__jpeg; + +static int stbi__build_huffman(stbi__huffman *h, int *count) +{ + int i,j,k=0; + unsigned int code; + // build size list for each symbol (from JPEG spec) + for (i=0; i < 16; ++i) + for (j=0; j < count[i]; ++j) + h->size[k++] = (stbi_uc) (i+1); + h->size[k] = 0; + + // compute actual symbols (from jpeg spec) + code = 0; + k = 0; + for(j=1; j <= 16; ++j) { + // compute delta to add to code to compute symbol id + h->delta[j] = k - code; + if (h->size[k] == j) { + while (h->size[k] == j) + h->code[k++] = (stbi__uint16) (code++); + if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG"); + } + // compute largest code + 1 for this size, preshifted as needed later + h->maxcode[j] = code << (16-j); + code <<= 1; + } + h->maxcode[j] = 0xffffffff; + + // build non-spec acceleration table; 255 is flag for not-accelerated + memset(h->fast, 255, 1 << FAST_BITS); + for (i=0; i < k; ++i) { + int s = h->size[i]; + if (s <= FAST_BITS) { + int c = h->code[i] << (FAST_BITS-s); + int m = 1 << (FAST_BITS-s); + for (j=0; j < m; ++j) { + h->fast[c+j] = (stbi_uc) i; + } + } + } + return 1; +} + +// build a table that decodes both magnitude and value of small ACs in +// one go. +static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h) +{ + int i; + for (i=0; i < (1 << FAST_BITS); ++i) { + stbi_uc fast = h->fast[i]; + fast_ac[i] = 0; + if (fast < 255) { + int rs = h->values[fast]; + int run = (rs >> 4) & 15; + int magbits = rs & 15; + int len = h->size[fast]; + + if (magbits && len + magbits <= FAST_BITS) { + // magnitude code followed by receive_extend code + int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); + int m = 1 << (magbits - 1); + if (k < m) k += (~0U << magbits) + 1; + // if the result is small enough, we can fit it in fast_ac table + if (k >= -128 && k <= 127) + fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits)); + } + } + } +} + +static void stbi__grow_buffer_unsafe(stbi__jpeg *j) +{ + do { + unsigned int b = j->nomore ? 0 : stbi__get8(j->s); + if (b == 0xff) { + int c = stbi__get8(j->s); + while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes + if (c != 0) { + j->marker = (unsigned char) c; + j->nomore = 1; + return; + } + } + j->code_buffer |= b << (24 - j->code_bits); + j->code_bits += 8; + } while (j->code_bits <= 24); +} + +// (1 << n) - 1 +static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535}; + +// decode a jpeg huffman value from the bitstream +stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h) +{ + unsigned int temp; + int c,k; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + // look at the top FAST_BITS and determine what symbol ID it is, + // if the code is <= FAST_BITS + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + k = h->fast[c]; + if (k < 255) { + int s = h->size[k]; + if (s > j->code_bits) + return -1; + j->code_buffer <<= s; + j->code_bits -= s; + return h->values[k]; + } + + // naive test is to shift the code_buffer down so k bits are + // valid, then test against maxcode. To speed this up, we've + // preshifted maxcode left so that it has (16-k) 0s at the + // end; in other words, regardless of the number of bits, it + // wants to be compared against something shifted to have 16; + // that way we don't need to shift inside the loop. + temp = j->code_buffer >> 16; + for (k=FAST_BITS+1 ; ; ++k) + if (temp < h->maxcode[k]) + break; + if (k == 17) { + // error! code not found + j->code_bits -= 16; + return -1; + } + + if (k > j->code_bits) + return -1; + + // convert the huffman code to the symbol id + c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; + STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); + + // convert the id to a symbol + j->code_bits -= k; + j->code_buffer <<= k; + return h->values[c]; +} + +// bias[n] = (-1<<n) + 1 +static const int stbi__jbias[16] = {0,-1,-3,-7,-15,-31,-63,-127,-255,-511,-1023,-2047,-4095,-8191,-16383,-32767}; + +// combined JPEG 'receive' and JPEG 'extend', since baseline +// always extends everything it receives. +stbi_inline static int stbi__extend_receive(stbi__jpeg *j, int n) +{ + unsigned int k; + int sgn; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + + sgn = (stbi__int32)j->code_buffer >> 31; // sign bit is always in MSB + k = stbi_lrot(j->code_buffer, n); + STBI_ASSERT(n >= 0 && n < (int) (sizeof(stbi__bmask)/sizeof(*stbi__bmask))); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k + (stbi__jbias[n] & ~sgn); +} + +// get some unsigned bits +stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n) +{ + unsigned int k; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + k = stbi_lrot(j->code_buffer, n); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k; +} + +stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j) +{ + unsigned int k; + if (j->code_bits < 1) stbi__grow_buffer_unsafe(j); + k = j->code_buffer; + j->code_buffer <<= 1; + --j->code_bits; + return k & 0x80000000; +} + +// given a value that's at position X in the zigzag stream, +// where does it appear in the 8x8 matrix coded as row-major? +static const stbi_uc stbi__jpeg_dezigzag[64+15] = +{ + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 48, 41, 34, + 27, 20, 13, 6, 7, 14, 21, 28, + 35, 42, 49, 56, 57, 50, 43, 36, + 29, 22, 15, 23, 30, 37, 44, 51, + 58, 59, 52, 45, 38, 31, 39, 46, + 53, 60, 61, 54, 47, 55, 62, 63, + // let corrupt input sample past end + 63, 63, 63, 63, 63, 63, 63, 63, + 63, 63, 63, 63, 63, 63, 63 +}; + +// decode one 64-entry block-- +static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant) +{ + int diff,dc,k; + int t; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + t = stbi__jpeg_huff_decode(j, hdc); + if (t < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + + // 0 all the ac values now so we can do it 32-bits at a time + memset(data,0,64*sizeof(data[0])); + + diff = t ? stbi__extend_receive(j, t) : 0; + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc * dequant[0]); + + // decode AC components, see JPEG spec + k = 1; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) * dequant[zig]); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (rs != 0xf0) break; // end block + k += 16; + } else { + k += r; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]); + } + } + } while (k < 64); + return 1; +} + +static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b) +{ + int diff,dc; + int t; + if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + if (j->succ_high == 0) { + // first scan for DC coefficient, must be first + memset(data,0,64*sizeof(data[0])); // 0 all the ac values now + t = stbi__jpeg_huff_decode(j, hdc); + diff = t ? stbi__extend_receive(j, t) : 0; + + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc << j->succ_low); + } else { + // refinement scan for DC coefficient + if (stbi__jpeg_get_bit(j)) + data[0] += (short) (1 << j->succ_low); + } + return 1; +} + +// @OPTIMIZE: store non-zigzagged during the decode passes, +// and only de-zigzag when dequantizing +static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac) +{ + int k; + if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->succ_high == 0) { + int shift = j->succ_low; + + if (j->eob_run) { + --j->eob_run; + return 1; + } + + k = j->spec_start; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) << shift); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r); + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + --j->eob_run; + break; + } + k += 16; + } else { + k += r; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) << shift); + } + } + } while (k <= j->spec_end); + } else { + // refinement scan for these AC coefficients + + short bit = (short) (1 << j->succ_low); + + if (j->eob_run) { + --j->eob_run; + for (k = j->spec_start; k <= j->spec_end; ++k) { + short *p = &data[stbi__jpeg_dezigzag[k]]; + if (*p != 0) + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } + } else { + k = j->spec_start; + do { + int r,s; + int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r) - 1; + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + r = 64; // force end of block + } else { + // r=15 s=0 should write 16 0s, so we just do + // a run of 15 0s and then write s (which is 0), + // so we don't have to do anything special here + } + } else { + if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); + // sign bit + if (stbi__jpeg_get_bit(j)) + s = bit; + else + s = -bit; + } + + // advance by r + while (k <= j->spec_end) { + short *p = &data[stbi__jpeg_dezigzag[k++]]; + if (*p != 0) { + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } else { + if (r == 0) { + *p = (short) s; + break; + } + --r; + } + } + } while (k <= j->spec_end); + } + } + return 1; +} + +// take a -128..127 value and stbi__clamp it and convert to 0..255 +stbi_inline static stbi_uc stbi__clamp(int x) +{ + // trick to use a single test to catch both cases + if ((unsigned int) x > 255) { + if (x < 0) return 0; + if (x > 255) return 255; + } + return (stbi_uc) x; +} + +#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5))) +#define stbi__fsh(x) ((x) * 4096) + +// derived from jidctint -- DCT_ISLOW +#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \ + int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \ + p2 = s2; \ + p3 = s6; \ + p1 = (p2+p3) * stbi__f2f(0.5411961f); \ + t2 = p1 + p3*stbi__f2f(-1.847759065f); \ + t3 = p1 + p2*stbi__f2f( 0.765366865f); \ + p2 = s0; \ + p3 = s4; \ + t0 = stbi__fsh(p2+p3); \ + t1 = stbi__fsh(p2-p3); \ + x0 = t0+t3; \ + x3 = t0-t3; \ + x1 = t1+t2; \ + x2 = t1-t2; \ + t0 = s7; \ + t1 = s5; \ + t2 = s3; \ + t3 = s1; \ + p3 = t0+t2; \ + p4 = t1+t3; \ + p1 = t0+t3; \ + p2 = t1+t2; \ + p5 = (p3+p4)*stbi__f2f( 1.175875602f); \ + t0 = t0*stbi__f2f( 0.298631336f); \ + t1 = t1*stbi__f2f( 2.053119869f); \ + t2 = t2*stbi__f2f( 3.072711026f); \ + t3 = t3*stbi__f2f( 1.501321110f); \ + p1 = p5 + p1*stbi__f2f(-0.899976223f); \ + p2 = p5 + p2*stbi__f2f(-2.562915447f); \ + p3 = p3*stbi__f2f(-1.961570560f); \ + p4 = p4*stbi__f2f(-0.390180644f); \ + t3 += p1+p4; \ + t2 += p2+p3; \ + t1 += p2+p4; \ + t0 += p1+p3; + +static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64]) +{ + int i,val[64],*v=val; + stbi_uc *o; + short *d = data; + + // columns + for (i=0; i < 8; ++i,++d, ++v) { + // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing + if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0 + && d[40]==0 && d[48]==0 && d[56]==0) { + // no shortcut 0 seconds + // (1|2|3|4|5|6|7)==0 0 seconds + // all separate -0.047 seconds + // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds + int dcterm = d[0]*4; + v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; + } else { + STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56]) + // constants scaled things up by 1<<12; let's bring them back + // down, but keep 2 extra bits of precision + x0 += 512; x1 += 512; x2 += 512; x3 += 512; + v[ 0] = (x0+t3) >> 10; + v[56] = (x0-t3) >> 10; + v[ 8] = (x1+t2) >> 10; + v[48] = (x1-t2) >> 10; + v[16] = (x2+t1) >> 10; + v[40] = (x2-t1) >> 10; + v[24] = (x3+t0) >> 10; + v[32] = (x3-t0) >> 10; + } + } + + for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) { + // no fast case since the first 1D IDCT spread components out + STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7]) + // constants scaled things up by 1<<12, plus we had 1<<2 from first + // loop, plus horizontal and vertical each scale by sqrt(8) so together + // we've got an extra 1<<3, so 1<<17 total we need to remove. + // so we want to round that, which means adding 0.5 * 1<<17, + // aka 65536. Also, we'll end up with -128 to 127 that we want + // to encode as 0..255 by adding 128, so we'll add that before the shift + x0 += 65536 + (128<<17); + x1 += 65536 + (128<<17); + x2 += 65536 + (128<<17); + x3 += 65536 + (128<<17); + // tried computing the shifts into temps, or'ing the temps to see + // if any were out of range, but that was slower + o[0] = stbi__clamp((x0+t3) >> 17); + o[7] = stbi__clamp((x0-t3) >> 17); + o[1] = stbi__clamp((x1+t2) >> 17); + o[6] = stbi__clamp((x1-t2) >> 17); + o[2] = stbi__clamp((x2+t1) >> 17); + o[5] = stbi__clamp((x2-t1) >> 17); + o[3] = stbi__clamp((x3+t0) >> 17); + o[4] = stbi__clamp((x3-t0) >> 17); + } +} + +#ifdef STBI_SSE2 +// sse2 integer IDCT. not the fastest possible implementation but it +// produces bit-identical results to the generic C version so it's +// fully "transparent". +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + // This is constructed to match our regular (generic) integer IDCT exactly. + __m128i row0, row1, row2, row3, row4, row5, row6, row7; + __m128i tmp; + + // dot product constant: even elems=x, odd elems=y + #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y)) + + // out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) + // out(1) = c1[even]*x + c1[odd]*y + #define dct_rot(out0,out1, x,y,c0,c1) \ + __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \ + __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \ + __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ + __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ + __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ + __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) + + // out = in << 12 (in 16-bit, out 32-bit) + #define dct_widen(out, in) \ + __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ + __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) + + // wide add + #define dct_wadd(out, a, b) \ + __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_add_epi32(a##_h, b##_h) + + // wide sub + #define dct_wsub(out, a, b) \ + __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) + + // butterfly a/b, add bias, then shift by "s" and pack + #define dct_bfly32o(out0, out1, a,b,bias,s) \ + { \ + __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ + __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ + dct_wadd(sum, abiased, b); \ + dct_wsub(dif, abiased, b); \ + out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ + out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ + } + + // 8-bit interleave step (for transposes) + #define dct_interleave8(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi8(a, b); \ + b = _mm_unpackhi_epi8(tmp, b) + + // 16-bit interleave step (for transposes) + #define dct_interleave16(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi16(a, b); \ + b = _mm_unpackhi_epi16(tmp, b) + + #define dct_pass(bias,shift) \ + { \ + /* even part */ \ + dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \ + __m128i sum04 = _mm_add_epi16(row0, row4); \ + __m128i dif04 = _mm_sub_epi16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \ + dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \ + __m128i sum17 = _mm_add_epi16(row1, row7); \ + __m128i sum35 = _mm_add_epi16(row3, row5); \ + dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \ + dct_wadd(x4, y0o, y4o); \ + dct_wadd(x5, y1o, y5o); \ + dct_wadd(x6, y2o, y5o); \ + dct_wadd(x7, y3o, y4o); \ + dct_bfly32o(row0,row7, x0,x7,bias,shift); \ + dct_bfly32o(row1,row6, x1,x6,bias,shift); \ + dct_bfly32o(row2,row5, x2,x5,bias,shift); \ + dct_bfly32o(row3,row4, x3,x4,bias,shift); \ + } + + __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); + __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f)); + __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); + __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); + __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f)); + __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f)); + __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f)); + __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f)); + + // rounding biases in column/row passes, see stbi__idct_block for explanation. + __m128i bias_0 = _mm_set1_epi32(512); + __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17)); + + // load + row0 = _mm_load_si128((const __m128i *) (data + 0*8)); + row1 = _mm_load_si128((const __m128i *) (data + 1*8)); + row2 = _mm_load_si128((const __m128i *) (data + 2*8)); + row3 = _mm_load_si128((const __m128i *) (data + 3*8)); + row4 = _mm_load_si128((const __m128i *) (data + 4*8)); + row5 = _mm_load_si128((const __m128i *) (data + 5*8)); + row6 = _mm_load_si128((const __m128i *) (data + 6*8)); + row7 = _mm_load_si128((const __m128i *) (data + 7*8)); + + // column pass + dct_pass(bias_0, 10); + + { + // 16bit 8x8 transpose pass 1 + dct_interleave16(row0, row4); + dct_interleave16(row1, row5); + dct_interleave16(row2, row6); + dct_interleave16(row3, row7); + + // transpose pass 2 + dct_interleave16(row0, row2); + dct_interleave16(row1, row3); + dct_interleave16(row4, row6); + dct_interleave16(row5, row7); + + // transpose pass 3 + dct_interleave16(row0, row1); + dct_interleave16(row2, row3); + dct_interleave16(row4, row5); + dct_interleave16(row6, row7); + } + + // row pass + dct_pass(bias_1, 17); + + { + // pack + __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 + __m128i p1 = _mm_packus_epi16(row2, row3); + __m128i p2 = _mm_packus_epi16(row4, row5); + __m128i p3 = _mm_packus_epi16(row6, row7); + + // 8bit 8x8 transpose pass 1 + dct_interleave8(p0, p2); // a0e0a1e1... + dct_interleave8(p1, p3); // c0g0c1g1... + + // transpose pass 2 + dct_interleave8(p0, p1); // a0c0e0g0... + dct_interleave8(p2, p3); // b0d0f0h0... + + // transpose pass 3 + dct_interleave8(p0, p2); // a0b0c0d0... + dct_interleave8(p1, p3); // a4b4c4d4... + + // store + _mm_storel_epi64((__m128i *) out, p0); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p2); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p1); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p3); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e)); + } + +#undef dct_const +#undef dct_rot +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_interleave8 +#undef dct_interleave16 +#undef dct_pass +} + +#endif // STBI_SSE2 + +#ifdef STBI_NEON + +// NEON integer IDCT. should produce bit-identical +// results to the generic C version. +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; + + int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); + int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); + int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f)); + int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f)); + int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); + int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); + int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); + int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); + int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f)); + int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f)); + int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f)); + int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f)); + +#define dct_long_mul(out, inq, coeff) \ + int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) + +#define dct_long_mac(out, acc, inq, coeff) \ + int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) + +#define dct_widen(out, inq) \ + int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ + int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) + +// wide add +#define dct_wadd(out, a, b) \ + int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vaddq_s32(a##_h, b##_h) + +// wide sub +#define dct_wsub(out, a, b) \ + int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vsubq_s32(a##_h, b##_h) + +// butterfly a/b, then shift using "shiftop" by "s" and pack +#define dct_bfly32o(out0,out1, a,b,shiftop,s) \ + { \ + dct_wadd(sum, a, b); \ + dct_wsub(dif, a, b); \ + out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ + out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ + } + +#define dct_pass(shiftop, shift) \ + { \ + /* even part */ \ + int16x8_t sum26 = vaddq_s16(row2, row6); \ + dct_long_mul(p1e, sum26, rot0_0); \ + dct_long_mac(t2e, p1e, row6, rot0_1); \ + dct_long_mac(t3e, p1e, row2, rot0_2); \ + int16x8_t sum04 = vaddq_s16(row0, row4); \ + int16x8_t dif04 = vsubq_s16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + int16x8_t sum15 = vaddq_s16(row1, row5); \ + int16x8_t sum17 = vaddq_s16(row1, row7); \ + int16x8_t sum35 = vaddq_s16(row3, row5); \ + int16x8_t sum37 = vaddq_s16(row3, row7); \ + int16x8_t sumodd = vaddq_s16(sum17, sum35); \ + dct_long_mul(p5o, sumodd, rot1_0); \ + dct_long_mac(p1o, p5o, sum17, rot1_1); \ + dct_long_mac(p2o, p5o, sum35, rot1_2); \ + dct_long_mul(p3o, sum37, rot2_0); \ + dct_long_mul(p4o, sum15, rot2_1); \ + dct_wadd(sump13o, p1o, p3o); \ + dct_wadd(sump24o, p2o, p4o); \ + dct_wadd(sump23o, p2o, p3o); \ + dct_wadd(sump14o, p1o, p4o); \ + dct_long_mac(x4, sump13o, row7, rot3_0); \ + dct_long_mac(x5, sump24o, row5, rot3_1); \ + dct_long_mac(x6, sump23o, row3, rot3_2); \ + dct_long_mac(x7, sump14o, row1, rot3_3); \ + dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \ + dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \ + dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \ + dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \ + } + + // load + row0 = vld1q_s16(data + 0*8); + row1 = vld1q_s16(data + 1*8); + row2 = vld1q_s16(data + 2*8); + row3 = vld1q_s16(data + 3*8); + row4 = vld1q_s16(data + 4*8); + row5 = vld1q_s16(data + 5*8); + row6 = vld1q_s16(data + 6*8); + row7 = vld1q_s16(data + 7*8); + + // add DC bias + row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); + + // column pass + dct_pass(vrshrn_n_s32, 10); + + // 16bit 8x8 transpose + { +// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively. +// whether compilers actually get this is another story, sadly. +#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); } +#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); } + + // pass 1 + dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 + dct_trn16(row2, row3); + dct_trn16(row4, row5); + dct_trn16(row6, row7); + + // pass 2 + dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 + dct_trn32(row1, row3); + dct_trn32(row4, row6); + dct_trn32(row5, row7); + + // pass 3 + dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 + dct_trn64(row1, row5); + dct_trn64(row2, row6); + dct_trn64(row3, row7); + +#undef dct_trn16 +#undef dct_trn32 +#undef dct_trn64 + } + + // row pass + // vrshrn_n_s32 only supports shifts up to 16, we need + // 17. so do a non-rounding shift of 16 first then follow + // up with a rounding shift by 1. + dct_pass(vshrn_n_s32, 16); + + { + // pack and round + uint8x8_t p0 = vqrshrun_n_s16(row0, 1); + uint8x8_t p1 = vqrshrun_n_s16(row1, 1); + uint8x8_t p2 = vqrshrun_n_s16(row2, 1); + uint8x8_t p3 = vqrshrun_n_s16(row3, 1); + uint8x8_t p4 = vqrshrun_n_s16(row4, 1); + uint8x8_t p5 = vqrshrun_n_s16(row5, 1); + uint8x8_t p6 = vqrshrun_n_s16(row6, 1); + uint8x8_t p7 = vqrshrun_n_s16(row7, 1); + + // again, these can translate into one instruction, but often don't. +#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); } +#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); } + + // sadly can't use interleaved stores here since we only write + // 8 bytes to each scan line! + + // 8x8 8-bit transpose pass 1 + dct_trn8_8(p0, p1); + dct_trn8_8(p2, p3); + dct_trn8_8(p4, p5); + dct_trn8_8(p6, p7); + + // pass 2 + dct_trn8_16(p0, p2); + dct_trn8_16(p1, p3); + dct_trn8_16(p4, p6); + dct_trn8_16(p5, p7); + + // pass 3 + dct_trn8_32(p0, p4); + dct_trn8_32(p1, p5); + dct_trn8_32(p2, p6); + dct_trn8_32(p3, p7); + + // store + vst1_u8(out, p0); out += out_stride; + vst1_u8(out, p1); out += out_stride; + vst1_u8(out, p2); out += out_stride; + vst1_u8(out, p3); out += out_stride; + vst1_u8(out, p4); out += out_stride; + vst1_u8(out, p5); out += out_stride; + vst1_u8(out, p6); out += out_stride; + vst1_u8(out, p7); + +#undef dct_trn8_8 +#undef dct_trn8_16 +#undef dct_trn8_32 + } + +#undef dct_long_mul +#undef dct_long_mac +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_pass +} + +#endif // STBI_NEON + +#define STBI__MARKER_none 0xff +// if there's a pending marker from the entropy stream, return that +// otherwise, fetch from the stream and get a marker. if there's no +// marker, return 0xff, which is never a valid marker value +static stbi_uc stbi__get_marker(stbi__jpeg *j) +{ + stbi_uc x; + if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; } + x = stbi__get8(j->s); + if (x != 0xff) return STBI__MARKER_none; + while (x == 0xff) + x = stbi__get8(j->s); // consume repeated 0xff fill bytes + return x; +} + +// in each scan, we'll have scan_n components, and the order +// of the components is specified by order[] +#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) + +// after a restart interval, stbi__jpeg_reset the entropy decoder and +// the dc prediction +static void stbi__jpeg_reset(stbi__jpeg *j) +{ + j->code_bits = 0; + j->code_buffer = 0; + j->nomore = 0; + j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; + j->marker = STBI__MARKER_none; + j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; + j->eob_run = 0; + // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, + // since we don't even allow 1<<30 pixels +} + +static int stbi__parse_entropy_coded_data(stbi__jpeg *z) +{ + stbi__jpeg_reset(z); + if (!z->progressive) { + if (z->scan_n == 1) { + int i,j; + STBI_SIMD_ALIGN(short, data[64]); + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + // if it's NOT a restart, then just bail, so we get corrupt data + // rather than no data + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + STBI_SIMD_ALIGN(short, data[64]); + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x)*8; + int y2 = (j*z->img_comp[n].v + y)*8; + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data); + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } else { + if (z->scan_n == 1) { + int i,j; + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + if (z->spec_start == 0) { + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } else { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) + return 0; + } + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x); + int y2 = (j*z->img_comp[n].v + y); + short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } +} + +static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant) +{ + int i; + for (i=0; i < 64; ++i) + data[i] *= dequant[i]; +} + +static void stbi__jpeg_finish(stbi__jpeg *z) +{ + if (z->progressive) { + // dequantize and idct the data + int i,j,n; + for (n=0; n < z->s->img_n; ++n) { + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + } + } + } + } +} + +static int stbi__process_marker(stbi__jpeg *z, int m) +{ + int L; + switch (m) { + case STBI__MARKER_none: // no marker found + return stbi__err("expected marker","Corrupt JPEG"); + + case 0xDD: // DRI - specify restart interval + if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG"); + z->restart_interval = stbi__get16be(z->s); + return 1; + + case 0xDB: // DQT - define quantization table + L = stbi__get16be(z->s)-2; + while (L > 0) { + int q = stbi__get8(z->s); + int p = q >> 4, sixteen = (p != 0); + int t = q & 15,i; + if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG"); + if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG"); + + for (i=0; i < 64; ++i) + z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); + L -= (sixteen ? 129 : 65); + } + return L==0; + + case 0xC4: // DHT - define huffman table + L = stbi__get16be(z->s)-2; + while (L > 0) { + stbi_uc *v; + int sizes[16],i,n=0; + int q = stbi__get8(z->s); + int tc = q >> 4; + int th = q & 15; + if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG"); + for (i=0; i < 16; ++i) { + sizes[i] = stbi__get8(z->s); + n += sizes[i]; + } + L -= 17; + if (tc == 0) { + if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0; + v = z->huff_dc[th].values; + } else { + if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0; + v = z->huff_ac[th].values; + } + for (i=0; i < n; ++i) + v[i] = stbi__get8(z->s); + if (tc != 0) + stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); + L -= n; + } + return L==0; + } + + // check for comment block or APP blocks + if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { + L = stbi__get16be(z->s); + if (L < 2) { + if (m == 0xFE) + return stbi__err("bad COM len","Corrupt JPEG"); + else + return stbi__err("bad APP len","Corrupt JPEG"); + } + L -= 2; + + if (m == 0xE0 && L >= 5) { // JFIF APP0 segment + static const unsigned char tag[5] = {'J','F','I','F','\0'}; + int ok = 1; + int i; + for (i=0; i < 5; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 5; + if (ok) + z->jfif = 1; + } else if (m == 0xEE && L >= 12) { // Adobe APP14 segment + static const unsigned char tag[6] = {'A','d','o','b','e','\0'}; + int ok = 1; + int i; + for (i=0; i < 6; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 6; + if (ok) { + stbi__get8(z->s); // version + stbi__get16be(z->s); // flags0 + stbi__get16be(z->s); // flags1 + z->app14_color_transform = stbi__get8(z->s); // color transform + L -= 6; + } + } + + stbi__skip(z->s, L); + return 1; + } + + return stbi__err("unknown marker","Corrupt JPEG"); +} + +// after we see SOS +static int stbi__process_scan_header(stbi__jpeg *z) +{ + int i; + int Ls = stbi__get16be(z->s); + z->scan_n = stbi__get8(z->s); + if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG"); + if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG"); + for (i=0; i < z->scan_n; ++i) { + int id = stbi__get8(z->s), which; + int q = stbi__get8(z->s); + for (which = 0; which < z->s->img_n; ++which) + if (z->img_comp[which].id == id) + break; + if (which == z->s->img_n) return 0; // no match + z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG"); + z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG"); + z->order[i] = which; + } + + { + int aa; + z->spec_start = stbi__get8(z->s); + z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 + aa = stbi__get8(z->s); + z->succ_high = (aa >> 4); + z->succ_low = (aa & 15); + if (z->progressive) { + if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) + return stbi__err("bad SOS", "Corrupt JPEG"); + } else { + if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG"); + if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG"); + z->spec_end = 63; + } + } + + return 1; +} + +static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why) +{ + int i; + for (i=0; i < ncomp; ++i) { + if (z->img_comp[i].raw_data) { + STBI_FREE(z->img_comp[i].raw_data); + z->img_comp[i].raw_data = NULL; + z->img_comp[i].data = NULL; + } + if (z->img_comp[i].raw_coeff) { + STBI_FREE(z->img_comp[i].raw_coeff); + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].coeff = 0; + } + if (z->img_comp[i].linebuf) { + STBI_FREE(z->img_comp[i].linebuf); + z->img_comp[i].linebuf = NULL; + } + } + return why; +} + +static int stbi__process_frame_header(stbi__jpeg *z, int scan) +{ + stbi__context *s = z->s; + int Lf,p,i,q, h_max=1,v_max=1,c; + Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG + p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline + s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG + s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires + c = stbi__get8(s); + if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG"); + s->img_n = c; + for (i=0; i < c; ++i) { + z->img_comp[i].data = NULL; + z->img_comp[i].linebuf = NULL; + } + + if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG"); + + z->rgb = 0; + for (i=0; i < s->img_n; ++i) { + static const unsigned char rgb[3] = { 'R', 'G', 'B' }; + z->img_comp[i].id = stbi__get8(s); + if (s->img_n == 3 && z->img_comp[i].id == rgb[i]) + ++z->rgb; + q = stbi__get8(s); + z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG"); + z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG"); + z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG"); + } + + if (scan != STBI__SCAN_load) return 1; + + if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); + + for (i=0; i < s->img_n; ++i) { + if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; + if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; + } + + // compute interleaved mcu info + z->img_h_max = h_max; + z->img_v_max = v_max; + z->img_mcu_w = h_max * 8; + z->img_mcu_h = v_max * 8; + // these sizes can't be more than 17 bits + z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w; + z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h; + + for (i=0; i < s->img_n; ++i) { + // number of effective pixels (e.g. for non-interleaved MCU) + z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max; + z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max; + // to simplify generation, we'll allocate enough memory to decode + // the bogus oversized data from using interleaved MCUs and their + // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't + // discard the extra data until colorspace conversion + // + // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) + // so these muls can't overflow with 32-bit ints (which we require) + z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; + z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; + z->img_comp[i].coeff = 0; + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].linebuf = NULL; + z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); + if (z->img_comp[i].raw_data == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + // align blocks for idct using mmx/sse + z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15); + if (z->progressive) { + // w2, h2 are multiples of 8 (see above) + z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; + z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; + z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); + if (z->img_comp[i].raw_coeff == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15); + } + } + + return 1; +} + +// use comparisons since in some cases we handle more than one case (e.g. SOF) +#define stbi__DNL(x) ((x) == 0xdc) +#define stbi__SOI(x) ((x) == 0xd8) +#define stbi__EOI(x) ((x) == 0xd9) +#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) +#define stbi__SOS(x) ((x) == 0xda) + +#define stbi__SOF_progressive(x) ((x) == 0xc2) + +static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan) +{ + int m; + z->jfif = 0; + z->app14_color_transform = -1; // valid values are 0,1,2 + z->marker = STBI__MARKER_none; // initialize cached marker to empty + m = stbi__get_marker(z); + if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG"); + if (scan == STBI__SCAN_type) return 1; + m = stbi__get_marker(z); + while (!stbi__SOF(m)) { + if (!stbi__process_marker(z,m)) return 0; + m = stbi__get_marker(z); + while (m == STBI__MARKER_none) { + // some files have extra padding after their blocks, so ok, we'll scan + if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); + m = stbi__get_marker(z); + } + } + z->progressive = stbi__SOF_progressive(m); + if (!stbi__process_frame_header(z, scan)) return 0; + return 1; +} + +// decode image to YCbCr format +static int stbi__decode_jpeg_image(stbi__jpeg *j) +{ + int m; + for (m = 0; m < 4; m++) { + j->img_comp[m].raw_data = NULL; + j->img_comp[m].raw_coeff = NULL; + } + j->restart_interval = 0; + if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; + m = stbi__get_marker(j); + while (!stbi__EOI(m)) { + if (stbi__SOS(m)) { + if (!stbi__process_scan_header(j)) return 0; + if (!stbi__parse_entropy_coded_data(j)) return 0; + if (j->marker == STBI__MARKER_none ) { + // handle 0s at the end of image data from IP Kamera 9060 + while (!stbi__at_eof(j->s)) { + int x = stbi__get8(j->s); + if (x == 255) { + j->marker = stbi__get8(j->s); + break; + } + } + // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 + } + } else if (stbi__DNL(m)) { + int Ld = stbi__get16be(j->s); + stbi__uint32 NL = stbi__get16be(j->s); + if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); + if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); + } else { + if (!stbi__process_marker(j, m)) return 0; + } + m = stbi__get_marker(j); + } + if (j->progressive) + stbi__jpeg_finish(j); + return 1; +} + +// static jfif-centered resampling (across block boundaries) + +typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1, + int w, int hs); + +#define stbi__div4(x) ((stbi_uc) ((x) >> 2)) + +static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + STBI_NOTUSED(out); + STBI_NOTUSED(in_far); + STBI_NOTUSED(w); + STBI_NOTUSED(hs); + return in_near; +} + +static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples vertically for every one in input + int i; + STBI_NOTUSED(hs); + for (i=0; i < w; ++i) + out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2); + return out; +} + +static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples horizontally for every one in input + int i; + stbi_uc *input = in_near; + + if (w == 1) { + // if only one sample, can't do any interpolation + out[0] = out[1] = input[0]; + return out; + } + + out[0] = input[0]; + out[1] = stbi__div4(input[0]*3 + input[1] + 2); + for (i=1; i < w-1; ++i) { + int n = 3*input[i]+2; + out[i*2+0] = stbi__div4(n+input[i-1]); + out[i*2+1] = stbi__div4(n+input[i+1]); + } + out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2); + out[i*2+1] = input[w-1]; + + STBI_NOTUSED(in_far); + STBI_NOTUSED(hs); + + return out; +} + +#define stbi__div16(x) ((stbi_uc) ((x) >> 4)) + +static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i,t0,t1; + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + out[0] = stbi__div4(t1+2); + for (i=1; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i=0,t0,t1; + + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + // process groups of 8 pixels for as long as we can. + // note we can't handle the last pixel in a row in this loop + // because we need to handle the filter boundary conditions. + for (; i < ((w-1) & ~7); i += 8) { +#if defined(STBI_SSE2) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + __m128i zero = _mm_setzero_si128(); + __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i)); + __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i)); + __m128i farw = _mm_unpacklo_epi8(farb, zero); + __m128i nearw = _mm_unpacklo_epi8(nearb, zero); + __m128i diff = _mm_sub_epi16(farw, nearw); + __m128i nears = _mm_slli_epi16(nearw, 2); + __m128i curr = _mm_add_epi16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + __m128i prv0 = _mm_slli_si128(curr, 2); + __m128i nxt0 = _mm_srli_si128(curr, 2); + __m128i prev = _mm_insert_epi16(prv0, t1, 0); + __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + __m128i bias = _mm_set1_epi16(8); + __m128i curs = _mm_slli_epi16(curr, 2); + __m128i prvd = _mm_sub_epi16(prev, curr); + __m128i nxtd = _mm_sub_epi16(next, curr); + __m128i curb = _mm_add_epi16(curs, bias); + __m128i even = _mm_add_epi16(prvd, curb); + __m128i odd = _mm_add_epi16(nxtd, curb); + + // interleave even and odd pixels, then undo scaling. + __m128i int0 = _mm_unpacklo_epi16(even, odd); + __m128i int1 = _mm_unpackhi_epi16(even, odd); + __m128i de0 = _mm_srli_epi16(int0, 4); + __m128i de1 = _mm_srli_epi16(int1, 4); + + // pack and write output + __m128i outv = _mm_packus_epi16(de0, de1); + _mm_storeu_si128((__m128i *) (out + i*2), outv); +#elif defined(STBI_NEON) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + uint8x8_t farb = vld1_u8(in_far + i); + uint8x8_t nearb = vld1_u8(in_near + i); + int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); + int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); + int16x8_t curr = vaddq_s16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + int16x8_t prv0 = vextq_s16(curr, curr, 7); + int16x8_t nxt0 = vextq_s16(curr, curr, 1); + int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); + int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + int16x8_t curs = vshlq_n_s16(curr, 2); + int16x8_t prvd = vsubq_s16(prev, curr); + int16x8_t nxtd = vsubq_s16(next, curr); + int16x8_t even = vaddq_s16(curs, prvd); + int16x8_t odd = vaddq_s16(curs, nxtd); + + // undo scaling and round, then store with even/odd phases interleaved + uint8x8x2_t o; + o.val[0] = vqrshrun_n_s16(even, 4); + o.val[1] = vqrshrun_n_s16(odd, 4); + vst2_u8(out + i*2, o); +#endif + + // "previous" value for next iter + t1 = 3*in_near[i+7] + in_far[i+7]; + } + + t0 = t1; + t1 = 3*in_near[i] + in_far[i]; + out[i*2] = stbi__div16(3*t1 + t0 + 8); + + for (++i; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} +#endif + +static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // resample with nearest-neighbor + int i,j; + STBI_NOTUSED(in_far); + for (i=0; i < w; ++i) + for (j=0; j < hs; ++j) + out[i*hs+j] = in_near[i]; + return out; +} + +// this is a reduced-precision calculation of YCbCr-to-RGB introduced +// to make sure the code produces the same results in both SIMD and scalar +#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8) +static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step) +{ + int i; + for (i=0; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step) +{ + int i = 0; + +#ifdef STBI_SSE2 + // step == 3 is pretty ugly on the final interleave, and i'm not convinced + // it's useful in practice (you wouldn't use it for textures, for example). + // so just accelerate step == 4 case. + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + __m128i signflip = _mm_set1_epi8(-0x80); + __m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f)); + __m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f)); + __m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f)); + __m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f)); + __m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128); + __m128i xw = _mm_set1_epi16(255); // alpha channel + + for (; i+7 < count; i += 8) { + // load + __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i)); + __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i)); + __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i)); + __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 + __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 + + // unpack to short (and left-shift cr, cb by 8) + __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); + __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); + __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); + + // color transform + __m128i yws = _mm_srli_epi16(yw, 4); + __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); + __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); + __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); + __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); + __m128i rws = _mm_add_epi16(cr0, yws); + __m128i gwt = _mm_add_epi16(cb0, yws); + __m128i bws = _mm_add_epi16(yws, cb1); + __m128i gws = _mm_add_epi16(gwt, cr1); + + // descale + __m128i rw = _mm_srai_epi16(rws, 4); + __m128i bw = _mm_srai_epi16(bws, 4); + __m128i gw = _mm_srai_epi16(gws, 4); + + // back to byte, set up for transpose + __m128i brb = _mm_packus_epi16(rw, bw); + __m128i gxb = _mm_packus_epi16(gw, xw); + + // transpose to interleave channels + __m128i t0 = _mm_unpacklo_epi8(brb, gxb); + __m128i t1 = _mm_unpackhi_epi8(brb, gxb); + __m128i o0 = _mm_unpacklo_epi16(t0, t1); + __m128i o1 = _mm_unpackhi_epi16(t0, t1); + + // store + _mm_storeu_si128((__m128i *) (out + 0), o0); + _mm_storeu_si128((__m128i *) (out + 16), o1); + out += 32; + } + } +#endif + +#ifdef STBI_NEON + // in this version, step=3 support would be easy to add. but is there demand? + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + uint8x8_t signflip = vdup_n_u8(0x80); + int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f)); + int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f)); + int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f)); + int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f)); + + for (; i+7 < count; i += 8) { + // load + uint8x8_t y_bytes = vld1_u8(y + i); + uint8x8_t cr_bytes = vld1_u8(pcr + i); + uint8x8_t cb_bytes = vld1_u8(pcb + i); + int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); + int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); + + // expand to s16 + int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); + int16x8_t crw = vshll_n_s8(cr_biased, 7); + int16x8_t cbw = vshll_n_s8(cb_biased, 7); + + // color transform + int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); + int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); + int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); + int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); + int16x8_t rws = vaddq_s16(yws, cr0); + int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); + int16x8_t bws = vaddq_s16(yws, cb1); + + // undo scaling, round, convert to byte + uint8x8x4_t o; + o.val[0] = vqrshrun_n_s16(rws, 4); + o.val[1] = vqrshrun_n_s16(gws, 4); + o.val[2] = vqrshrun_n_s16(bws, 4); + o.val[3] = vdup_n_u8(255); + + // store, interleaving r/g/b/a + vst4_u8(out, o); + out += 8*4; + } + } +#endif + + for (; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} +#endif + +// set up the kernels +static void stbi__setup_jpeg(stbi__jpeg *j) +{ + j->idct_block_kernel = stbi__idct_block; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; + +#ifdef STBI_SSE2 + if (stbi__sse2_available()) { + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; + } +#endif + +#ifdef STBI_NEON + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; +#endif +} + +// clean up the temporary component buffers +static void stbi__cleanup_jpeg(stbi__jpeg *j) +{ + stbi__free_jpeg_components(j, j->s->img_n, 0); +} + +typedef struct +{ + resample_row_func resample; + stbi_uc *line0,*line1; + int hs,vs; // expansion factor in each axis + int w_lores; // horizontal pixels pre-expansion + int ystep; // how far through vertical expansion we are + int ypos; // which pre-expansion row we're on +} stbi__resample; + +// fast 0..255 * 0..255 => 0..255 rounded multiplication +static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) +{ + unsigned int t = x*y + 128; + return (stbi_uc) ((t + (t >>8)) >> 8); +} + +static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp) +{ + int n, decode_n, is_rgb; + z->s->img_n = 0; // make stbi__cleanup_jpeg safe + + // validate req_comp + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + + // load a jpeg image from whichever source, but leave in YCbCr format + if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; } + + // determine actual number of components to generate + n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1; + + is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); + + if (z->s->img_n == 3 && n < 3 && !is_rgb) + decode_n = 1; + else + decode_n = z->s->img_n; + + // resample and color-convert + { + int k; + unsigned int i,j; + stbi_uc *output; + stbi_uc *coutput[4]; + + stbi__resample res_comp[4]; + + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + + // allocate line buffer big enough for upsampling off the edges + // with upsample factor of 4 + z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3); + if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + r->hs = z->img_h_max / z->img_comp[k].h; + r->vs = z->img_v_max / z->img_comp[k].v; + r->ystep = r->vs >> 1; + r->w_lores = (z->s->img_x + r->hs-1) / r->hs; + r->ypos = 0; + r->line0 = r->line1 = z->img_comp[k].data; + + if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1; + else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2; + else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2; + else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel; + else r->resample = stbi__resample_row_generic; + } + + // can't error after this so, this is safe + output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); + if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + // now go ahead and resample + for (j=0; j < z->s->img_y; ++j) { + stbi_uc *out = output + n * z->s->img_x * j; + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + int y_bot = r->ystep >= (r->vs >> 1); + coutput[k] = r->resample(z->img_comp[k].linebuf, + y_bot ? r->line1 : r->line0, + y_bot ? r->line0 : r->line1, + r->w_lores, r->hs); + if (++r->ystep >= r->vs) { + r->ystep = 0; + r->line0 = r->line1; + if (++r->ypos < z->img_comp[k].y) + r->line1 += z->img_comp[k].w2; + } + } + if (n >= 3) { + stbi_uc *y = coutput[0]; + if (z->s->img_n == 3) { + if (is_rgb) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = y[i]; + out[1] = coutput[1][i]; + out[2] = coutput[2][i]; + out[3] = 255; + out += n; + } + } else { + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else if (z->s->img_n == 4) { + if (z->app14_color_transform == 0) { // CMYK + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(coutput[0][i], m); + out[1] = stbi__blinn_8x8(coutput[1][i], m); + out[2] = stbi__blinn_8x8(coutput[2][i], m); + out[3] = 255; + out += n; + } + } else if (z->app14_color_transform == 2) { // YCCK + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(255 - out[0], m); + out[1] = stbi__blinn_8x8(255 - out[1], m); + out[2] = stbi__blinn_8x8(255 - out[2], m); + out += n; + } + } else { // YCbCr + alpha? Ignore the fourth channel for now + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else + for (i=0; i < z->s->img_x; ++i) { + out[0] = out[1] = out[2] = y[i]; + out[3] = 255; // not used if n==3 + out += n; + } + } else { + if (is_rgb) { + if (n == 1) + for (i=0; i < z->s->img_x; ++i) + *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + else { + for (i=0; i < z->s->img_x; ++i, out += 2) { + out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + out[1] = 255; + } + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 0) { + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); + stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); + stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); + out[0] = stbi__compute_y(r, g, b); + out[1] = 255; + out += n; + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 2) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); + out[1] = 255; + out += n; + } + } else { + stbi_uc *y = coutput[0]; + if (n == 1) + for (i=0; i < z->s->img_x; ++i) out[i] = y[i]; + else + for (i=0; i < z->s->img_x; ++i) *out++ = y[i], *out++ = 255; + } + } + } + stbi__cleanup_jpeg(z); + *out_x = z->s->img_x; + *out_y = z->s->img_y; + if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output + return output; + } +} + +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + unsigned char* result; + stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); + STBI_NOTUSED(ri); + j->s = s; + stbi__setup_jpeg(j); + result = load_jpeg_image(j, x,y,comp,req_comp); + STBI_FREE(j); + return result; +} + +static int stbi__jpeg_test(stbi__context *s) +{ + int r; + stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); + j->s = s; + stbi__setup_jpeg(j); + r = stbi__decode_jpeg_header(j, STBI__SCAN_type); + stbi__rewind(s); + STBI_FREE(j); + return r; +} + +static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp) +{ + if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { + stbi__rewind( j->s ); + return 0; + } + if (x) *x = j->s->img_x; + if (y) *y = j->s->img_y; + if (comp) *comp = j->s->img_n >= 3 ? 3 : 1; + return 1; +} + +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp) +{ + int result; + stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg))); + if (!j) { + stbi__errpuc("outofmem", "Out of memory"); + return 0; + } + j->s = s; + result = stbi__jpeg_info_raw(j, x, y, comp); + STBI_FREE(j); + return result; +} +#endif + +// public domain zlib decode v0.2 Sean Barrett 2006-11-18 +// simple implementation +// - all input must be provided in an upfront buffer +// - all output is written to a single output buffer (can malloc/realloc) +// performance +// - fast huffman + +#ifndef STBI_NO_ZLIB + +// fast-way is faster to check than jpeg huffman, but slow way is slower +#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables +#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) + +// zlib-style huffman encoding +// (jpegs packs from left, zlib from right, so can't share code) +typedef struct +{ + stbi__uint16 fast[1 << STBI__ZFAST_BITS]; + stbi__uint16 firstcode[16]; + int maxcode[17]; + stbi__uint16 firstsymbol[16]; + stbi_uc size[288]; + stbi__uint16 value[288]; +} stbi__zhuffman; + +stbi_inline static int stbi__bitreverse16(int n) +{ + n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); + n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); + n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); + n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); + return n; +} + +stbi_inline static int stbi__bit_reverse(int v, int bits) +{ + STBI_ASSERT(bits <= 16); + // to bit reverse n bits, reverse 16 and shift + // e.g. 11 bits, bit reverse and shift away 5 + return stbi__bitreverse16(v) >> (16-bits); +} + +static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num) +{ + int i,k=0; + int code, next_code[16], sizes[17]; + + // DEFLATE spec for generating codes + memset(sizes, 0, sizeof(sizes)); + memset(z->fast, 0, sizeof(z->fast)); + for (i=0; i < num; ++i) + ++sizes[sizelist[i]]; + sizes[0] = 0; + for (i=1; i < 16; ++i) + if (sizes[i] > (1 << i)) + return stbi__err("bad sizes", "Corrupt PNG"); + code = 0; + for (i=1; i < 16; ++i) { + next_code[i] = code; + z->firstcode[i] = (stbi__uint16) code; + z->firstsymbol[i] = (stbi__uint16) k; + code = (code + sizes[i]); + if (sizes[i]) + if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG"); + z->maxcode[i] = code << (16-i); // preshift for inner loop + code <<= 1; + k += sizes[i]; + } + z->maxcode[16] = 0x10000; // sentinel + for (i=0; i < num; ++i) { + int s = sizelist[i]; + if (s) { + int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; + stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i); + z->size [c] = (stbi_uc ) s; + z->value[c] = (stbi__uint16) i; + if (s <= STBI__ZFAST_BITS) { + int j = stbi__bit_reverse(next_code[s],s); + while (j < (1 << STBI__ZFAST_BITS)) { + z->fast[j] = fastv; + j += (1 << s); + } + } + ++next_code[s]; + } + } + return 1; +} + +// zlib-from-memory implementation for PNG reading +// because PNG allows splitting the zlib stream arbitrarily, +// and it's annoying structurally to have PNG call ZLIB call PNG, +// we require PNG read all the IDATs and combine them into a single +// memory buffer + +typedef struct +{ + stbi_uc *zbuffer, *zbuffer_end; + int num_bits; + stbi__uint32 code_buffer; + + char *zout; + char *zout_start; + char *zout_end; + int z_expandable; + + stbi__zhuffman z_length, z_distance; +} stbi__zbuf; + +stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z) +{ + if (z->zbuffer >= z->zbuffer_end) return 0; + return *z->zbuffer++; +} + +static void stbi__fill_bits(stbi__zbuf *z) +{ + do { + STBI_ASSERT(z->code_buffer < (1U << z->num_bits)); + z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits; + z->num_bits += 8; + } while (z->num_bits <= 24); +} + +stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n) +{ + unsigned int k; + if (z->num_bits < n) stbi__fill_bits(z); + k = z->code_buffer & ((1 << n) - 1); + z->code_buffer >>= n; + z->num_bits -= n; + return k; +} + +static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s,k; + // not resolved by fast table, so compute it the slow way + // use jpeg approach, which requires MSbits at top + k = stbi__bit_reverse(a->code_buffer, 16); + for (s=STBI__ZFAST_BITS+1; ; ++s) + if (k < z->maxcode[s]) + break; + if (s == 16) return -1; // invalid code! + // code size is s, so: + b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s]; + STBI_ASSERT(z->size[b] == s); + a->code_buffer >>= s; + a->num_bits -= s; + return z->value[b]; +} + +stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s; + if (a->num_bits < 16) stbi__fill_bits(a); + b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; + if (b) { + s = b >> 9; + a->code_buffer >>= s; + a->num_bits -= s; + return b & 511; + } + return stbi__zhuffman_decode_slowpath(a, z); +} + +static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes +{ + char *q; + int cur, limit, old_limit; + z->zout = zout; + if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG"); + cur = (int) (z->zout - z->zout_start); + limit = old_limit = (int) (z->zout_end - z->zout_start); + while (cur + n > limit) + limit *= 2; + q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); + STBI_NOTUSED(old_limit); + if (q == NULL) return stbi__err("outofmem", "Out of memory"); + z->zout_start = q; + z->zout = q + cur; + z->zout_end = q + limit; + return 1; +} + +static const int stbi__zlength_base[31] = { + 3,4,5,6,7,8,9,10,11,13, + 15,17,19,23,27,31,35,43,51,59, + 67,83,99,115,131,163,195,227,258,0,0 }; + +static const int stbi__zlength_extra[31]= +{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 }; + +static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, +257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0}; + +static const int stbi__zdist_extra[32] = +{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; + +static int stbi__parse_huffman_block(stbi__zbuf *a) +{ + char *zout = a->zout; + for(;;) { + int z = stbi__zhuffman_decode(a, &a->z_length); + if (z < 256) { + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes + if (zout >= a->zout_end) { + if (!stbi__zexpand(a, zout, 1)) return 0; + zout = a->zout; + } + *zout++ = (char) z; + } else { + stbi_uc *p; + int len,dist; + if (z == 256) { + a->zout = zout; + return 1; + } + z -= 257; + len = stbi__zlength_base[z]; + if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); + z = stbi__zhuffman_decode(a, &a->z_distance); + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); + dist = stbi__zdist_base[z]; + if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); + if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG"); + if (zout + len > a->zout_end) { + if (!stbi__zexpand(a, zout, len)) return 0; + zout = a->zout; + } + p = (stbi_uc *) (zout - dist); + if (dist == 1) { // run of one byte; common in images. + stbi_uc v = *p; + if (len) { do *zout++ = v; while (--len); } + } else { + if (len) { do *zout++ = *p++; while (--len); } + } + } + } +} + +static int stbi__compute_huffman_codes(stbi__zbuf *a) +{ + static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 }; + stbi__zhuffman z_codelength; + stbi_uc lencodes[286+32+137];//padding for maximum single op + stbi_uc codelength_sizes[19]; + int i,n; + + int hlit = stbi__zreceive(a,5) + 257; + int hdist = stbi__zreceive(a,5) + 1; + int hclen = stbi__zreceive(a,4) + 4; + int ntot = hlit + hdist; + + memset(codelength_sizes, 0, sizeof(codelength_sizes)); + for (i=0; i < hclen; ++i) { + int s = stbi__zreceive(a,3); + codelength_sizes[length_dezigzag[i]] = (stbi_uc) s; + } + if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; + + n = 0; + while (n < ntot) { + int c = stbi__zhuffman_decode(a, &z_codelength); + if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); + if (c < 16) + lencodes[n++] = (stbi_uc) c; + else { + stbi_uc fill = 0; + if (c == 16) { + c = stbi__zreceive(a,2)+3; + if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); + fill = lencodes[n-1]; + } else if (c == 17) + c = stbi__zreceive(a,3)+3; + else { + STBI_ASSERT(c == 18); + c = stbi__zreceive(a,7)+11; + } + if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); + memset(lencodes+n, fill, c); + n += c; + } + } + if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG"); + if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0; + return 1; +} + +static int stbi__parse_uncompressed_block(stbi__zbuf *a) +{ + stbi_uc header[4]; + int len,nlen,k; + if (a->num_bits & 7) + stbi__zreceive(a, a->num_bits & 7); // discard + // drain the bit-packed data into header + k = 0; + while (a->num_bits > 0) { + header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check + a->code_buffer >>= 8; + a->num_bits -= 8; + } + STBI_ASSERT(a->num_bits == 0); + // now fill header the normal way + while (k < 4) + header[k++] = stbi__zget8(a); + len = header[1] * 256 + header[0]; + nlen = header[3] * 256 + header[2]; + if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG"); + if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG"); + if (a->zout + len > a->zout_end) + if (!stbi__zexpand(a, a->zout, len)) return 0; + memcpy(a->zout, a->zbuffer, len); + a->zbuffer += len; + a->zout += len; + return 1; +} + +static int stbi__parse_zlib_header(stbi__zbuf *a) +{ + int cmf = stbi__zget8(a); + int cm = cmf & 15; + /* int cinfo = cmf >> 4; */ + int flg = stbi__zget8(a); + if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png + if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png + // window = 1 << (8 + cinfo)... but who cares, we fully buffer output + return 1; +} + +static const stbi_uc stbi__zdefault_length[288] = +{ + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8 +}; +static const stbi_uc stbi__zdefault_distance[32] = +{ + 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 +}; +/* +Init algorithm: +{ + int i; // use <= to match clearly with spec + for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8; + for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9; + for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7; + for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8; + + for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5; +} +*/ + +static int stbi__parse_zlib(stbi__zbuf *a, int parse_header) +{ + int final, type; + if (parse_header) + if (!stbi__parse_zlib_header(a)) return 0; + a->num_bits = 0; + a->code_buffer = 0; + do { + final = stbi__zreceive(a,1); + type = stbi__zreceive(a,2); + if (type == 0) { + if (!stbi__parse_uncompressed_block(a)) return 0; + } else if (type == 3) { + return 0; + } else { + if (type == 1) { + // use fixed code lengths + if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , 288)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; + } else { + if (!stbi__compute_huffman_codes(a)) return 0; + } + if (!stbi__parse_huffman_block(a)) return 0; + } + } while (!final); + return 1; +} + +static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header) +{ + a->zout_start = obuf; + a->zout = obuf; + a->zout_end = obuf + olen; + a->z_expandable = exp; + + return stbi__parse_zlib(a, parse_header); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, 1)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen) +{ + return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 1)) + return (int) (a.zout - a.zout_start); + else + return -1; +} + +STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(16384); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer+len; + if (stbi__do_zlib(&a, p, 16384, 1, 0)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 0)) + return (int) (a.zout - a.zout_start); + else + return -1; +} +#endif + +// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18 +// simple implementation +// - only 8-bit samples +// - no CRC checking +// - allocates lots of intermediate memory +// - avoids problem of streaming data between subsystems +// - avoids explicit window management +// performance +// - uses stb_zlib, a PD zlib implementation with fast huffman decoding + +#ifndef STBI_NO_PNG +typedef struct +{ + stbi__uint32 length; + stbi__uint32 type; +} stbi__pngchunk; + +static stbi__pngchunk stbi__get_chunk_header(stbi__context *s) +{ + stbi__pngchunk c; + c.length = stbi__get32be(s); + c.type = stbi__get32be(s); + return c; +} + +static int stbi__check_png_header(stbi__context *s) +{ + static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 }; + int i; + for (i=0; i < 8; ++i) + if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG"); + return 1; +} + +typedef struct +{ + stbi__context *s; + stbi_uc *idata, *expanded, *out; + int depth; +} stbi__png; + + +enum { + STBI__F_none=0, + STBI__F_sub=1, + STBI__F_up=2, + STBI__F_avg=3, + STBI__F_paeth=4, + // synthetic filters used for first scanline to avoid needing a dummy row of 0s + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static stbi_uc first_row_filter[5] = +{ + STBI__F_none, + STBI__F_sub, + STBI__F_none, + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static int stbi__paeth(int a, int b, int c) +{ + int p = a + b - c; + int pa = abs(p-a); + int pb = abs(p-b); + int pc = abs(p-c); + if (pa <= pb && pa <= pc) return a; + if (pb <= pc) return b; + return c; +} + +static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 }; + +// create the png data from post-deflated data +static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) +{ + int bytes = (depth == 16? 2 : 1); + stbi__context *s = a->s; + stbi__uint32 i,j,stride = x*out_n*bytes; + stbi__uint32 img_len, img_width_bytes; + int k; + int img_n = s->img_n; // copy it into a local for later + + int output_bytes = out_n*bytes; + int filter_bytes = img_n*bytes; + int width = x; + + STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1); + a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into + if (!a->out) return stbi__err("outofmem", "Out of memory"); + + if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); + img_width_bytes = (((img_n * x * depth) + 7) >> 3); + img_len = (img_width_bytes + 1) * y; + + // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, + // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), + // so just check for raw_len < img_len always. + if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG"); + + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *prior; + int filter = *raw++; + + if (filter > 4) + return stbi__err("invalid filter","Corrupt PNG"); + + if (depth < 8) { + STBI_ASSERT(img_width_bytes <= x); + cur += x*out_n - img_width_bytes; // store output to the rightmost img_len bytes, so we can decode in place + filter_bytes = 1; + width = img_width_bytes; + } + prior = cur - stride; // bugfix: need to compute this after 'cur +=' computation above + + // if first row, use special filter that doesn't sample previous row + if (j == 0) filter = first_row_filter[filter]; + + // handle first byte explicitly + for (k=0; k < filter_bytes; ++k) { + switch (filter) { + case STBI__F_none : cur[k] = raw[k]; break; + case STBI__F_sub : cur[k] = raw[k]; break; + case STBI__F_up : cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break; + case STBI__F_avg : cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); break; + case STBI__F_paeth : cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0,prior[k],0)); break; + case STBI__F_avg_first : cur[k] = raw[k]; break; + case STBI__F_paeth_first: cur[k] = raw[k]; break; + } + } + + if (depth == 8) { + if (img_n != out_n) + cur[img_n] = 255; // first pixel + raw += img_n; + cur += out_n; + prior += out_n; + } else if (depth == 16) { + if (img_n != out_n) { + cur[filter_bytes] = 255; // first pixel top byte + cur[filter_bytes+1] = 255; // first pixel bottom byte + } + raw += filter_bytes; + cur += output_bytes; + prior += output_bytes; + } else { + raw += 1; + cur += 1; + prior += 1; + } + + // this is a little gross, so that we don't switch per-pixel or per-component + if (depth < 8 || img_n == out_n) { + int nk = (width - 1)*filter_bytes; + #define STBI__CASE(f) \ + case f: \ + for (k=0; k < nk; ++k) + switch (filter) { + // "none" filter turns into a memcpy here; make that explicit. + case STBI__F_none: memcpy(cur, raw, nk); break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],prior[k],prior[k-filter_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],0,0)); } break; + } + #undef STBI__CASE + raw += nk; + } else { + STBI_ASSERT(img_n+1 == out_n); + #define STBI__CASE(f) \ + case f: \ + for (i=x-1; i >= 1; --i, cur[filter_bytes]=255,raw+=filter_bytes,cur+=output_bytes,prior+=output_bytes) \ + for (k=0; k < filter_bytes; ++k) + switch (filter) { + STBI__CASE(STBI__F_none) { cur[k] = raw[k]; } break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k- output_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k- output_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],prior[k],prior[k- output_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k- output_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],0,0)); } break; + } + #undef STBI__CASE + + // the loop above sets the high byte of the pixels' alpha, but for + // 16 bit png files we also need the low byte set. we'll do that here. + if (depth == 16) { + cur = a->out + stride*j; // start at the beginning of the row again + for (i=0; i < x; ++i,cur+=output_bytes) { + cur[filter_bytes+1] = 255; + } + } + } + } + + // we make a separate pass to expand bits to pixels; for performance, + // this could run two scanlines behind the above code, so it won't + // intefere with filtering but will still be in the cache. + if (depth < 8) { + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *in = a->out + stride*j + x*out_n - img_width_bytes; + // unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit + // png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop + stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range + + // note that the final byte might overshoot and write more data than desired. + // we can allocate enough data that this never writes out of memory, but it + // could also overwrite the next scanline. can it overwrite non-empty data + // on the next scanline? yes, consider 1-pixel-wide scanlines with 1-bit-per-pixel. + // so we need to explicitly clamp the final ones + + if (depth == 4) { + for (k=x*img_n; k >= 2; k-=2, ++in) { + *cur++ = scale * ((*in >> 4) ); + *cur++ = scale * ((*in ) & 0x0f); + } + if (k > 0) *cur++ = scale * ((*in >> 4) ); + } else if (depth == 2) { + for (k=x*img_n; k >= 4; k-=4, ++in) { + *cur++ = scale * ((*in >> 6) ); + *cur++ = scale * ((*in >> 4) & 0x03); + *cur++ = scale * ((*in >> 2) & 0x03); + *cur++ = scale * ((*in ) & 0x03); + } + if (k > 0) *cur++ = scale * ((*in >> 6) ); + if (k > 1) *cur++ = scale * ((*in >> 4) & 0x03); + if (k > 2) *cur++ = scale * ((*in >> 2) & 0x03); + } else if (depth == 1) { + for (k=x*img_n; k >= 8; k-=8, ++in) { + *cur++ = scale * ((*in >> 7) ); + *cur++ = scale * ((*in >> 6) & 0x01); + *cur++ = scale * ((*in >> 5) & 0x01); + *cur++ = scale * ((*in >> 4) & 0x01); + *cur++ = scale * ((*in >> 3) & 0x01); + *cur++ = scale * ((*in >> 2) & 0x01); + *cur++ = scale * ((*in >> 1) & 0x01); + *cur++ = scale * ((*in ) & 0x01); + } + if (k > 0) *cur++ = scale * ((*in >> 7) ); + if (k > 1) *cur++ = scale * ((*in >> 6) & 0x01); + if (k > 2) *cur++ = scale * ((*in >> 5) & 0x01); + if (k > 3) *cur++ = scale * ((*in >> 4) & 0x01); + if (k > 4) *cur++ = scale * ((*in >> 3) & 0x01); + if (k > 5) *cur++ = scale * ((*in >> 2) & 0x01); + if (k > 6) *cur++ = scale * ((*in >> 1) & 0x01); + } + if (img_n != out_n) { + int q; + // insert alpha = 255 + cur = a->out + stride*j; + if (img_n == 1) { + for (q=x-1; q >= 0; --q) { + cur[q*2+1] = 255; + cur[q*2+0] = cur[q]; + } + } else { + STBI_ASSERT(img_n == 3); + for (q=x-1; q >= 0; --q) { + cur[q*4+3] = 255; + cur[q*4+2] = cur[q*3+2]; + cur[q*4+1] = cur[q*3+1]; + cur[q*4+0] = cur[q*3+0]; + } + } + } + } + } else if (depth == 16) { + // force the image data from big-endian to platform-native. + // this is done in a separate pass due to the decoding relying + // on the data being untouched, but could probably be done + // per-line during decode if care is taken. + stbi_uc *cur = a->out; + stbi__uint16 *cur16 = (stbi__uint16*)cur; + + for(i=0; i < x*y*out_n; ++i,cur16++,cur+=2) { + *cur16 = (cur[0] << 8) | cur[1]; + } + } + + return 1; +} + +static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) +{ + int bytes = (depth == 16 ? 2 : 1); + int out_bytes = out_n * bytes; + stbi_uc *final; + int p; + if (!interlaced) + return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); + + // de-interlacing + final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); + for (p=0; p < 7; ++p) { + int xorig[] = { 0,4,0,2,0,1,0 }; + int yorig[] = { 0,0,4,0,2,0,1 }; + int xspc[] = { 8,8,4,4,2,2,1 }; + int yspc[] = { 8,8,8,4,4,2,2 }; + int i,j,x,y; + // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 + x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p]; + y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p]; + if (x && y) { + stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; + if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { + STBI_FREE(final); + return 0; + } + for (j=0; j < y; ++j) { + for (i=0; i < x; ++i) { + int out_y = j*yspc[p]+yorig[p]; + int out_x = i*xspc[p]+xorig[p]; + memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes, + a->out + (j*x+i)*out_bytes, out_bytes); + } + } + STBI_FREE(a->out); + a->out = NULL; + image_data += img_len; + image_data_len -= img_len; + } + } + a->out = final; + + return 1; +} + +static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + // compute color-based transparency, assuming we've + // already got 255 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i=0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 255); + p += 2; + } + } else { + for (i=0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi__uint16 *p = (stbi__uint16*) z->out; + + // compute color-based transparency, assuming we've + // already got 65535 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i = 0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 65535); + p += 2; + } + } else { + for (i = 0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n) +{ + stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; + stbi_uc *p, *temp_out, *orig = a->out; + + p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0); + if (p == NULL) return stbi__err("outofmem", "Out of memory"); + + // between here and free(out) below, exitting would leak + temp_out = p; + + if (pal_img_n == 3) { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p += 3; + } + } else { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p[3] = palette[n+3]; + p += 4; + } + } + STBI_FREE(a->out); + a->out = temp_out; + + STBI_NOTUSED(len); + + return 1; +} + +static int stbi__unpremultiply_on_load = 0; +static int stbi__de_iphone_flag = 0; + +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) +{ + stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply; +} + +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) +{ + stbi__de_iphone_flag = flag_true_if_should_convert; +} + +static void stbi__de_iphone(stbi__png *z) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + if (s->img_out_n == 3) { // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 3; + } + } else { + STBI_ASSERT(s->img_out_n == 4); + if (stbi__unpremultiply_on_load) { + // convert bgr to rgb and unpremultiply + for (i=0; i < pixel_count; ++i) { + stbi_uc a = p[3]; + stbi_uc t = p[0]; + if (a) { + stbi_uc half = a / 2; + p[0] = (p[2] * 255 + half) / a; + p[1] = (p[1] * 255 + half) / a; + p[2] = ( t * 255 + half) / a; + } else { + p[0] = p[2]; + p[2] = t; + } + p += 4; + } + } else { + // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 4; + } + } + } +} + +#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d)) + +static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp) +{ + stbi_uc palette[1024], pal_img_n=0; + stbi_uc has_trans=0, tc[3]; + stbi__uint16 tc16[3]; + stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0; + int first=1,k,interlace=0, color=0, is_iphone=0; + stbi__context *s = z->s; + + z->expanded = NULL; + z->idata = NULL; + z->out = NULL; + + if (!stbi__check_png_header(s)) return 0; + + if (scan == STBI__SCAN_type) return 1; + + for (;;) { + stbi__pngchunk c = stbi__get_chunk_header(s); + switch (c.type) { + case STBI__PNG_TYPE('C','g','B','I'): + is_iphone = 1; + stbi__skip(s, c.length); + break; + case STBI__PNG_TYPE('I','H','D','R'): { + int comp,filter; + if (!first) return stbi__err("multiple IHDR","Corrupt PNG"); + first = 0; + if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG"); + s->img_x = stbi__get32be(s); if (s->img_x > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)"); + s->img_y = stbi__get32be(s); if (s->img_y > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)"); + z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); + color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); + comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); + filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); + interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG"); + if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG"); + if (!pal_img_n) { + s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); + if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); + if (scan == STBI__SCAN_header) return 1; + } else { + // if paletted, then pal_n is our final components, and + // img_n is # components to decompress/filter. + s->img_n = 1; + if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG"); + // if SCAN_header, have to scan to see if we have a tRNS + } + break; + } + + case STBI__PNG_TYPE('P','L','T','E'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG"); + pal_len = c.length / 3; + if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG"); + for (i=0; i < pal_len; ++i) { + palette[i*4+0] = stbi__get8(s); + palette[i*4+1] = stbi__get8(s); + palette[i*4+2] = stbi__get8(s); + palette[i*4+3] = 255; + } + break; + } + + case STBI__PNG_TYPE('t','R','N','S'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG"); + if (pal_img_n) { + if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; } + if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG"); + if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG"); + pal_img_n = 4; + for (i=0; i < c.length; ++i) + palette[i*4+3] = stbi__get8(s); + } else { + if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG"); + if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG"); + has_trans = 1; + if (z->depth == 16) { + for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is + } else { + for (k = 0; k < s->img_n; ++k) tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger + } + } + break; + } + + case STBI__PNG_TYPE('I','D','A','T'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG"); + if (scan == STBI__SCAN_header) { s->img_n = pal_img_n; return 1; } + if ((int)(ioff + c.length) < (int)ioff) return 0; + if (ioff + c.length > idata_limit) { + stbi__uint32 idata_limit_old = idata_limit; + stbi_uc *p; + if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; + while (ioff + c.length > idata_limit) + idata_limit *= 2; + STBI_NOTUSED(idata_limit_old); + p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory"); + z->idata = p; + } + if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG"); + ioff += c.length; + break; + } + + case STBI__PNG_TYPE('I','E','N','D'): { + stbi__uint32 raw_len, bpl; + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (scan != STBI__SCAN_load) return 1; + if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG"); + // initial guess for decoded data size to avoid unnecessary reallocs + bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component + raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; + z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone); + if (z->expanded == NULL) return 0; // zlib should set error + STBI_FREE(z->idata); z->idata = NULL; + if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans) + s->img_out_n = s->img_n+1; + else + s->img_out_n = s->img_n; + if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; + if (has_trans) { + if (z->depth == 16) { + if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; + } else { + if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; + } + } + if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) + stbi__de_iphone(z); + if (pal_img_n) { + // pal_img_n == 3 or 4 + s->img_n = pal_img_n; // record the actual colors we had + s->img_out_n = pal_img_n; + if (req_comp >= 3) s->img_out_n = req_comp; + if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) + return 0; + } else if (has_trans) { + // non-paletted image with tRNS -> source image has (constant) alpha + ++s->img_n; + } + STBI_FREE(z->expanded); z->expanded = NULL; + return 1; + } + + default: + // if critical, fail + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if ((c.type & (1 << 29)) == 0) { + #ifndef STBI_NO_FAILURE_STRINGS + // not threadsafe + static char invalid_chunk[] = "XXXX PNG chunk not known"; + invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); + invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); + invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); + invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); + #endif + return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); + } + stbi__skip(s, c.length); + break; + } + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + } +} + +static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri) +{ + void *result=NULL; + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { + if (p->depth < 8) + ri->bits_per_channel = 8; + else + ri->bits_per_channel = p->depth; + result = p->out; + p->out = NULL; + if (req_comp && req_comp != p->s->img_out_n) { + if (ri->bits_per_channel == 8) + result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + else + result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + p->s->img_out_n = req_comp; + if (result == NULL) return result; + } + *x = p->s->img_x; + *y = p->s->img_y; + if (n) *n = p->s->img_n; + } + STBI_FREE(p->out); p->out = NULL; + STBI_FREE(p->expanded); p->expanded = NULL; + STBI_FREE(p->idata); p->idata = NULL; + + return result; +} + +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi__png p; + p.s = s; + return stbi__do_png(&p, x,y,comp,req_comp, ri); +} + +static int stbi__png_test(stbi__context *s) +{ + int r; + r = stbi__check_png_header(s); + stbi__rewind(s); + return r; +} + +static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp) +{ + if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { + stbi__rewind( p->s ); + return 0; + } + if (x) *x = p->s->img_x; + if (y) *y = p->s->img_y; + if (comp) *comp = p->s->img_n; + return 1; +} + +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__png p; + p.s = s; + return stbi__png_info_raw(&p, x, y, comp); +} + +static int stbi__png_is16(stbi__context *s) +{ + stbi__png p; + p.s = s; + if (!stbi__png_info_raw(&p, NULL, NULL, NULL)) + return 0; + if (p.depth != 16) { + stbi__rewind(p.s); + return 0; + } + return 1; +} +#endif + +// Microsoft/Windows BMP image + +#ifndef STBI_NO_BMP +static int stbi__bmp_test_raw(stbi__context *s) +{ + int r; + int sz; + if (stbi__get8(s) != 'B') return 0; + if (stbi__get8(s) != 'M') return 0; + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + stbi__get32le(s); // discard data offset + sz = stbi__get32le(s); + r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); + return r; +} + +static int stbi__bmp_test(stbi__context *s) +{ + int r = stbi__bmp_test_raw(s); + stbi__rewind(s); + return r; +} + + +// returns 0..31 for the highest set bit +static int stbi__high_bit(unsigned int z) +{ + int n=0; + if (z == 0) return -1; + if (z >= 0x10000) n += 16, z >>= 16; + if (z >= 0x00100) n += 8, z >>= 8; + if (z >= 0x00010) n += 4, z >>= 4; + if (z >= 0x00004) n += 2, z >>= 2; + if (z >= 0x00002) n += 1, z >>= 1; + return n; +} + +static int stbi__bitcount(unsigned int a) +{ + a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 + a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 + a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits + a = (a + (a >> 8)); // max 16 per 8 bits + a = (a + (a >> 16)); // max 32 per 8 bits + return a & 0xff; +} + +// extract an arbitrarily-aligned N-bit value (N=bits) +// from v, and then make it 8-bits long and fractionally +// extend it to full full range. +static int stbi__shiftsigned(int v, int shift, int bits) +{ + static unsigned int mul_table[9] = { + 0, + 0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/, + 0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/, + }; + static unsigned int shift_table[9] = { + 0, 0,0,1,0,2,4,6,0, + }; + if (shift < 0) + v <<= -shift; + else + v >>= shift; + STBI_ASSERT(v >= 0 && v < 256); + v >>= (8-bits); + STBI_ASSERT(bits >= 0 && bits <= 8); + return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits]; +} + +typedef struct +{ + int bpp, offset, hsz; + unsigned int mr,mg,mb,ma, all_a; +} stbi__bmp_data; + +static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info) +{ + int hsz; + if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + info->offset = stbi__get32le(s); + info->hsz = hsz = stbi__get32le(s); + info->mr = info->mg = info->mb = info->ma = 0; + + if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); + if (hsz == 12) { + s->img_x = stbi__get16le(s); + s->img_y = stbi__get16le(s); + } else { + s->img_x = stbi__get32le(s); + s->img_y = stbi__get32le(s); + } + if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); + info->bpp = stbi__get16le(s); + if (hsz != 12) { + int compress = stbi__get32le(s); + if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); + stbi__get32le(s); // discard sizeof + stbi__get32le(s); // discard hres + stbi__get32le(s); // discard vres + stbi__get32le(s); // discard colorsused + stbi__get32le(s); // discard max important + if (hsz == 40 || hsz == 56) { + if (hsz == 56) { + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + } + if (info->bpp == 16 || info->bpp == 32) { + if (compress == 0) { + if (info->bpp == 32) { + info->mr = 0xffu << 16; + info->mg = 0xffu << 8; + info->mb = 0xffu << 0; + info->ma = 0xffu << 24; + info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 + } else { + info->mr = 31u << 10; + info->mg = 31u << 5; + info->mb = 31u << 0; + } + } else if (compress == 3) { + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + // not documented, but generated by photoshop and handled by mspaint + if (info->mr == info->mg && info->mg == info->mb) { + // ?!?!? + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else { + int i; + if (hsz != 108 && hsz != 124) + return stbi__errpuc("bad BMP", "bad BMP"); + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->ma = stbi__get32le(s); + stbi__get32le(s); // discard color space + for (i=0; i < 12; ++i) + stbi__get32le(s); // discard color space parameters + if (hsz == 124) { + stbi__get32le(s); // discard rendering intent + stbi__get32le(s); // discard offset of profile data + stbi__get32le(s); // discard size of profile data + stbi__get32le(s); // discard reserved + } + } + } + return (void *) 1; +} + + +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + unsigned int mr=0,mg=0,mb=0,ma=0, all_a; + stbi_uc pal[256][4]; + int psize=0,i,j,width; + int flip_vertically, pad, target; + stbi__bmp_data info; + STBI_NOTUSED(ri); + + info.all_a = 255; + if (stbi__bmp_parse_header(s, &info) == NULL) + return NULL; // error code already set + + flip_vertically = ((int) s->img_y) > 0; + s->img_y = abs((int) s->img_y); + + mr = info.mr; + mg = info.mg; + mb = info.mb; + ma = info.ma; + all_a = info.all_a; + + if (info.hsz == 12) { + if (info.bpp < 24) + psize = (info.offset - 14 - 24) / 3; + } else { + if (info.bpp < 16) + psize = (info.offset - 14 - info.hsz) >> 2; + } + + s->img_n = ma ? 4 : 3; + if (req_comp && req_comp >= 3) // we can directly decode 3 or 4 + target = req_comp; + else + target = s->img_n; // if they want monochrome, we'll post-convert + + // sanity-check size + if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "Corrupt BMP"); + + out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + if (info.bpp < 16) { + int z=0; + if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); } + for (i=0; i < psize; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + if (info.hsz != 12) stbi__get8(s); + pal[i][3] = 255; + } + stbi__skip(s, info.offset - 14 - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); + if (info.bpp == 1) width = (s->img_x + 7) >> 3; + else if (info.bpp == 4) width = (s->img_x + 1) >> 1; + else if (info.bpp == 8) width = s->img_x; + else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); } + pad = (-width)&3; + if (info.bpp == 1) { + for (j=0; j < (int) s->img_y; ++j) { + int bit_offset = 7, v = stbi__get8(s); + for (i=0; i < (int) s->img_x; ++i) { + int color = (v>>bit_offset)&0x1; + out[z++] = pal[color][0]; + out[z++] = pal[color][1]; + out[z++] = pal[color][2]; + if((--bit_offset) < 0) { + bit_offset = 7; + v = stbi__get8(s); + } + } + stbi__skip(s, pad); + } + } else { + for (j=0; j < (int) s->img_y; ++j) { + for (i=0; i < (int) s->img_x; i += 2) { + int v=stbi__get8(s),v2=0; + if (info.bpp == 4) { + v2 = v & 15; + v >>= 4; + } + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + v = (info.bpp == 8) ? stbi__get8(s) : v2; + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + } + stbi__skip(s, pad); + } + } + } else { + int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0; + int z = 0; + int easy=0; + stbi__skip(s, info.offset - 14 - info.hsz); + if (info.bpp == 24) width = 3 * s->img_x; + else if (info.bpp == 16) width = 2*s->img_x; + else /* bpp = 32 and pad = 0 */ width=0; + pad = (-width) & 3; + if (info.bpp == 24) { + easy = 1; + } else if (info.bpp == 32) { + if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) + easy = 2; + } + if (!easy) { + if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + // right shift amt to put high bit in position #7 + rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr); + gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg); + bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb); + ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma); + } + for (j=0; j < (int) s->img_y; ++j) { + if (easy) { + for (i=0; i < (int) s->img_x; ++i) { + unsigned char a; + out[z+2] = stbi__get8(s); + out[z+1] = stbi__get8(s); + out[z+0] = stbi__get8(s); + z += 3; + a = (easy == 2 ? stbi__get8(s) : 255); + all_a |= a; + if (target == 4) out[z++] = a; + } + } else { + int bpp = info.bpp; + for (i=0; i < (int) s->img_x; ++i) { + stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s)); + unsigned int a; + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); + a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); + all_a |= a; + if (target == 4) out[z++] = STBI__BYTECAST(a); + } + } + stbi__skip(s, pad); + } + } + + // if alpha channel is all 0s, replace with all 255s + if (target == 4 && all_a == 0) + for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) + out[i] = 255; + + if (flip_vertically) { + stbi_uc t; + for (j=0; j < (int) s->img_y>>1; ++j) { + stbi_uc *p1 = out + j *s->img_x*target; + stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target; + for (i=0; i < (int) s->img_x*target; ++i) { + t = p1[i], p1[i] = p2[i], p2[i] = t; + } + } + } + + if (req_comp && req_comp != target) { + out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + return out; +} +#endif + +// Targa Truevision - TGA +// by Jonathan Dummer +#ifndef STBI_NO_TGA +// returns STBI_rgb or whatever, 0 on error +static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) +{ + // only RGB or RGBA (incl. 16bit) or grey allowed + if (is_rgb16) *is_rgb16 = 0; + switch(bits_per_pixel) { + case 8: return STBI_grey; + case 16: if(is_grey) return STBI_grey_alpha; + // fallthrough + case 15: if(is_rgb16) *is_rgb16 = 1; + return STBI_rgb; + case 24: // fallthrough + case 32: return bits_per_pixel/8; + default: return 0; + } +} + +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp) +{ + int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; + int sz, tga_colormap_type; + stbi__get8(s); // discard Offset + tga_colormap_type = stbi__get8(s); // colormap type + if( tga_colormap_type > 1 ) { + stbi__rewind(s); + return 0; // only RGB or indexed allowed + } + tga_image_type = stbi__get8(s); // image type + if ( tga_colormap_type == 1 ) { // colormapped (paletted) image + if (tga_image_type != 1 && tga_image_type != 9) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip image x and y origin + tga_colormap_bpp = sz; + } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE + if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) { + stbi__rewind(s); + return 0; // only RGB or grey allowed, +/- RLE + } + stbi__skip(s,9); // skip colormap specification and image x/y origin + tga_colormap_bpp = 0; + } + tga_w = stbi__get16le(s); + if( tga_w < 1 ) { + stbi__rewind(s); + return 0; // test width + } + tga_h = stbi__get16le(s); + if( tga_h < 1 ) { + stbi__rewind(s); + return 0; // test height + } + tga_bits_per_pixel = stbi__get8(s); // bits per pixel + stbi__get8(s); // ignore alpha bits + if (tga_colormap_bpp != 0) { + if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { + // when using a colormap, tga_bits_per_pixel is the size of the indexes + // I don't think anything but 8 or 16bit indexes makes sense + stbi__rewind(s); + return 0; + } + tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); + } else { + tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); + } + if(!tga_comp) { + stbi__rewind(s); + return 0; + } + if (x) *x = tga_w; + if (y) *y = tga_h; + if (comp) *comp = tga_comp; + return 1; // seems to have passed everything +} + +static int stbi__tga_test(stbi__context *s) +{ + int res = 0; + int sz, tga_color_type; + stbi__get8(s); // discard Offset + tga_color_type = stbi__get8(s); // color type + if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed + sz = stbi__get8(s); // image type + if ( tga_color_type == 1 ) { // colormapped (paletted) image + if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + stbi__skip(s,4); // skip image x and y origin + } else { // "normal" image w/o colormap + if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE + stbi__skip(s,9); // skip colormap specification and image x/y origin + } + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height + sz = stbi__get8(s); // bits per pixel + if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + + res = 1; // if we got this far, everything's good and we can return 1 instead of 0 + +errorEnd: + stbi__rewind(s); + return res; +} + +// read 16bit value and convert to 24bit RGB +static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out) +{ + stbi__uint16 px = (stbi__uint16)stbi__get16le(s); + stbi__uint16 fiveBitMask = 31; + // we have 3 channels with 5bits each + int r = (px >> 10) & fiveBitMask; + int g = (px >> 5) & fiveBitMask; + int b = px & fiveBitMask; + // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later + out[0] = (stbi_uc)((r * 255)/31); + out[1] = (stbi_uc)((g * 255)/31); + out[2] = (stbi_uc)((b * 255)/31); + + // some people claim that the most significant bit might be used for alpha + // (possibly if an alpha-bit is set in the "image descriptor byte") + // but that only made 16bit test images completely translucent.. + // so let's treat all 15 and 16bit TGAs as RGB with no alpha. +} + +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + // read in the TGA header stuff + int tga_offset = stbi__get8(s); + int tga_indexed = stbi__get8(s); + int tga_image_type = stbi__get8(s); + int tga_is_RLE = 0; + int tga_palette_start = stbi__get16le(s); + int tga_palette_len = stbi__get16le(s); + int tga_palette_bits = stbi__get8(s); + int tga_x_origin = stbi__get16le(s); + int tga_y_origin = stbi__get16le(s); + int tga_width = stbi__get16le(s); + int tga_height = stbi__get16le(s); + int tga_bits_per_pixel = stbi__get8(s); + int tga_comp, tga_rgb16=0; + int tga_inverted = stbi__get8(s); + // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) + // image data + unsigned char *tga_data; + unsigned char *tga_palette = NULL; + int i, j; + unsigned char raw_data[4] = {0}; + int RLE_count = 0; + int RLE_repeating = 0; + int read_next_pixel = 1; + STBI_NOTUSED(ri); + + // do a tiny bit of precessing + if ( tga_image_type >= 8 ) + { + tga_image_type -= 8; + tga_is_RLE = 1; + } + tga_inverted = 1 - ((tga_inverted >> 5) & 1); + + // If I'm paletted, then I'll use the number of bits from the palette + if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); + else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); + + if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency + return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); + + // tga info + *x = tga_width; + *y = tga_height; + if (comp) *comp = tga_comp; + + if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) + return stbi__errpuc("too large", "Corrupt TGA"); + + tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); + if (!tga_data) return stbi__errpuc("outofmem", "Out of memory"); + + // skip to the data's starting position (offset usually = 0) + stbi__skip(s, tga_offset ); + + if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) { + for (i=0; i < tga_height; ++i) { + int row = tga_inverted ? tga_height -i - 1 : i; + stbi_uc *tga_row = tga_data + row*tga_width*tga_comp; + stbi__getn(s, tga_row, tga_width * tga_comp); + } + } else { + // do I need to load a palette? + if ( tga_indexed) + { + // any data to skip? (offset usually = 0) + stbi__skip(s, tga_palette_start ); + // load the palette + tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); + if (!tga_palette) { + STBI_FREE(tga_data); + return stbi__errpuc("outofmem", "Out of memory"); + } + if (tga_rgb16) { + stbi_uc *pal_entry = tga_palette; + STBI_ASSERT(tga_comp == STBI_rgb); + for (i=0; i < tga_palette_len; ++i) { + stbi__tga_read_rgb16(s, pal_entry); + pal_entry += tga_comp; + } + } else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { + STBI_FREE(tga_data); + STBI_FREE(tga_palette); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + } + // load the data + for (i=0; i < tga_width * tga_height; ++i) + { + // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? + if ( tga_is_RLE ) + { + if ( RLE_count == 0 ) + { + // yep, get the next byte as a RLE command + int RLE_cmd = stbi__get8(s); + RLE_count = 1 + (RLE_cmd & 127); + RLE_repeating = RLE_cmd >> 7; + read_next_pixel = 1; + } else if ( !RLE_repeating ) + { + read_next_pixel = 1; + } + } else + { + read_next_pixel = 1; + } + // OK, if I need to read a pixel, do it now + if ( read_next_pixel ) + { + // load however much data we did have + if ( tga_indexed ) + { + // read in index, then perform the lookup + int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); + if ( pal_idx >= tga_palette_len ) { + // invalid index + pal_idx = 0; + } + pal_idx *= tga_comp; + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = tga_palette[pal_idx+j]; + } + } else if(tga_rgb16) { + STBI_ASSERT(tga_comp == STBI_rgb); + stbi__tga_read_rgb16(s, raw_data); + } else { + // read in the data raw + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = stbi__get8(s); + } + } + // clear the reading flag for the next pixel + read_next_pixel = 0; + } // end of reading a pixel + + // copy data + for (j = 0; j < tga_comp; ++j) + tga_data[i*tga_comp+j] = raw_data[j]; + + // in case we're in RLE mode, keep counting down + --RLE_count; + } + // do I need to invert the image? + if ( tga_inverted ) + { + for (j = 0; j*2 < tga_height; ++j) + { + int index1 = j * tga_width * tga_comp; + int index2 = (tga_height - 1 - j) * tga_width * tga_comp; + for (i = tga_width * tga_comp; i > 0; --i) + { + unsigned char temp = tga_data[index1]; + tga_data[index1] = tga_data[index2]; + tga_data[index2] = temp; + ++index1; + ++index2; + } + } + } + // clear my palette, if I had one + if ( tga_palette != NULL ) + { + STBI_FREE( tga_palette ); + } + } + + // swap RGB - if the source data was RGB16, it already is in the right order + if (tga_comp >= 3 && !tga_rgb16) + { + unsigned char* tga_pixel = tga_data; + for (i=0; i < tga_width * tga_height; ++i) + { + unsigned char temp = tga_pixel[0]; + tga_pixel[0] = tga_pixel[2]; + tga_pixel[2] = temp; + tga_pixel += tga_comp; + } + } + + // convert to target component count + if (req_comp && req_comp != tga_comp) + tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); + + // the things I do to get rid of an error message, and yet keep + // Microsoft's C compilers happy... [8^( + tga_palette_start = tga_palette_len = tga_palette_bits = + tga_x_origin = tga_y_origin = 0; + // OK, done + return tga_data; +} +#endif + +// ************************************************************************************************* +// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s) +{ + int r = (stbi__get32be(s) == 0x38425053); + stbi__rewind(s); + return r; +} + +static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount) +{ + int count, nleft, len; + + count = 0; + while ((nleft = pixelCount - count) > 0) { + len = stbi__get8(s); + if (len == 128) { + // No-op. + } else if (len < 128) { + // Copy next len+1 bytes literally. + len++; + if (len > nleft) return 0; // corrupt data + count += len; + while (len) { + *p = stbi__get8(s); + p += 4; + len--; + } + } else if (len > 128) { + stbi_uc val; + // Next -len+1 bytes in the dest are replicated from next source byte. + // (Interpret len as a negative 8-bit int.) + len = 257 - len; + if (len > nleft) return 0; // corrupt data + val = stbi__get8(s); + count += len; + while (len) { + *p = val; + p += 4; + len--; + } + } + } + + return 1; +} + +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + int pixelCount; + int channelCount, compression; + int channel, i; + int bitdepth; + int w,h; + stbi_uc *out; + STBI_NOTUSED(ri); + + // Check identifier + if (stbi__get32be(s) != 0x38425053) // "8BPS" + return stbi__errpuc("not PSD", "Corrupt PSD image"); + + // Check file type version. + if (stbi__get16be(s) != 1) + return stbi__errpuc("wrong version", "Unsupported version of PSD image"); + + // Skip 6 reserved bytes. + stbi__skip(s, 6 ); + + // Read the number of channels (R, G, B, A, etc). + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) + return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); + + // Read the rows and columns of the image. + h = stbi__get32be(s); + w = stbi__get32be(s); + + // Make sure the depth is 8 bits. + bitdepth = stbi__get16be(s); + if (bitdepth != 8 && bitdepth != 16) + return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); + + // Make sure the color mode is RGB. + // Valid options are: + // 0: Bitmap + // 1: Grayscale + // 2: Indexed color + // 3: RGB color + // 4: CMYK color + // 7: Multichannel + // 8: Duotone + // 9: Lab color + if (stbi__get16be(s) != 3) + return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); + + // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) + stbi__skip(s,stbi__get32be(s) ); + + // Skip the image resources. (resolution, pen tool paths, etc) + stbi__skip(s, stbi__get32be(s) ); + + // Skip the reserved data. + stbi__skip(s, stbi__get32be(s) ); + + // Find out if the data is compressed. + // Known values: + // 0: no compression + // 1: RLE compressed + compression = stbi__get16be(s); + if (compression > 1) + return stbi__errpuc("bad compression", "PSD has an unknown compression format"); + + // Check size + if (!stbi__mad3sizes_valid(4, w, h, 0)) + return stbi__errpuc("too large", "Corrupt PSD"); + + // Create the destination image. + + if (!compression && bitdepth == 16 && bpc == 16) { + out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0); + ri->bits_per_channel = 16; + } else + out = (stbi_uc *) stbi__malloc(4 * w*h); + + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + pixelCount = w*h; + + // Initialize the data to zero. + //memset( out, 0, pixelCount * 4 ); + + // Finally, the image data. + if (compression) { + // RLE as used by .PSD and .TIFF + // Loop until you get the number of unpacked bytes you are expecting: + // Read the next source byte into n. + // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. + // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. + // Else if n is 128, noop. + // Endloop + + // The RLE-compressed data is preceeded by a 2-byte data count for each row in the data, + // which we're going to just skip. + stbi__skip(s, h * channelCount * 2 ); + + // Read the RLE data by channel. + for (channel = 0; channel < 4; channel++) { + stbi_uc *p; + + p = out+channel; + if (channel >= channelCount) { + // Fill this channel with default data. + for (i = 0; i < pixelCount; i++, p += 4) + *p = (channel == 3 ? 255 : 0); + } else { + // Read the RLE data. + if (!stbi__psd_decode_rle(s, p, pixelCount)) { + STBI_FREE(out); + return stbi__errpuc("corrupt", "bad RLE data"); + } + } + } + + } else { + // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) + // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. + + // Read the data by channel. + for (channel = 0; channel < 4; channel++) { + if (channel >= channelCount) { + // Fill this channel with default data. + if (bitdepth == 16 && bpc == 16) { + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + stbi__uint16 val = channel == 3 ? 65535 : 0; + for (i = 0; i < pixelCount; i++, q += 4) + *q = val; + } else { + stbi_uc *p = out+channel; + stbi_uc val = channel == 3 ? 255 : 0; + for (i = 0; i < pixelCount; i++, p += 4) + *p = val; + } + } else { + if (ri->bits_per_channel == 16) { // output bpc + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + for (i = 0; i < pixelCount; i++, q += 4) + *q = (stbi__uint16) stbi__get16be(s); + } else { + stbi_uc *p = out+channel; + if (bitdepth == 16) { // input bpc + for (i = 0; i < pixelCount; i++, p += 4) + *p = (stbi_uc) (stbi__get16be(s) >> 8); + } else { + for (i = 0; i < pixelCount; i++, p += 4) + *p = stbi__get8(s); + } + } + } + } + } + + // remove weird white matte from PSD + if (channelCount >= 4) { + if (ri->bits_per_channel == 16) { + for (i=0; i < w*h; ++i) { + stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i; + if (pixel[3] != 0 && pixel[3] != 65535) { + float a = pixel[3] / 65535.0f; + float ra = 1.0f / a; + float inv_a = 65535.0f * (1 - ra); + pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a); + pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a); + pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a); + } + } + } else { + for (i=0; i < w*h; ++i) { + unsigned char *pixel = out + 4*i; + if (pixel[3] != 0 && pixel[3] != 255) { + float a = pixel[3] / 255.0f; + float ra = 1.0f / a; + float inv_a = 255.0f * (1 - ra); + pixel[0] = (unsigned char) (pixel[0]*ra + inv_a); + pixel[1] = (unsigned char) (pixel[1]*ra + inv_a); + pixel[2] = (unsigned char) (pixel[2]*ra + inv_a); + } + } + } + } + + // convert to desired output format + if (req_comp && req_comp != 4) { + if (ri->bits_per_channel == 16) + out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h); + else + out = stbi__convert_format(out, 4, req_comp, w, h); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + if (comp) *comp = 4; + *y = h; + *x = w; + + return out; +} +#endif + +// ************************************************************************************************* +// Softimage PIC loader +// by Tom Seddon +// +// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format +// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/ + +#ifndef STBI_NO_PIC +static int stbi__pic_is4(stbi__context *s,const char *str) +{ + int i; + for (i=0; i<4; ++i) + if (stbi__get8(s) != (stbi_uc)str[i]) + return 0; + + return 1; +} + +static int stbi__pic_test_core(stbi__context *s) +{ + int i; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) + return 0; + + for(i=0;i<84;++i) + stbi__get8(s); + + if (!stbi__pic_is4(s,"PICT")) + return 0; + + return 1; +} + +typedef struct +{ + stbi_uc size,type,channel; +} stbi__pic_packet; + +static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest) +{ + int mask=0x80, i; + + for (i=0; i<4; ++i, mask>>=1) { + if (channel & mask) { + if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short"); + dest[i]=stbi__get8(s); + } + } + + return dest; +} + +static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src) +{ + int mask=0x80,i; + + for (i=0;i<4; ++i, mask>>=1) + if (channel&mask) + dest[i]=src[i]; +} + +static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result) +{ + int act_comp=0,num_packets=0,y,chained; + stbi__pic_packet packets[10]; + + // this will (should...) cater for even some bizarre stuff like having data + // for the same channel in multiple packets. + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return stbi__errpuc("bad format","too many packets"); + + packet = &packets[num_packets++]; + + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + + act_comp |= packet->channel; + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)"); + if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp"); + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? + + for(y=0; y<height; ++y) { + int packet_idx; + + for(packet_idx=0; packet_idx < num_packets; ++packet_idx) { + stbi__pic_packet *packet = &packets[packet_idx]; + stbi_uc *dest = result+y*width*4; + + switch (packet->type) { + default: + return stbi__errpuc("bad format","packet has bad compression type"); + + case 0: {//uncompressed + int x; + + for(x=0;x<width;++x, dest+=4) + if (!stbi__readval(s,packet->channel,dest)) + return 0; + break; + } + + case 1://Pure RLE + { + int left=width, i; + + while (left>0) { + stbi_uc count,value[4]; + + count=stbi__get8(s); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)"); + + if (count > left) + count = (stbi_uc) left; + + if (!stbi__readval(s,packet->channel,value)) return 0; + + for(i=0; i<count; ++i,dest+=4) + stbi__copyval(packet->channel,dest,value); + left -= count; + } + } + break; + + case 2: {//Mixed RLE + int left=width; + while (left>0) { + int count = stbi__get8(s), i; + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)"); + + if (count >= 128) { // Repeated + stbi_uc value[4]; + + if (count==128) + count = stbi__get16be(s); + else + count -= 127; + if (count > left) + return stbi__errpuc("bad file","scanline overrun"); + + if (!stbi__readval(s,packet->channel,value)) + return 0; + + for(i=0;i<count;++i, dest += 4) + stbi__copyval(packet->channel,dest,value); + } else { // Raw + ++count; + if (count>left) return stbi__errpuc("bad file","scanline overrun"); + + for(i=0;i<count;++i, dest+=4) + if (!stbi__readval(s,packet->channel,dest)) + return 0; + } + left-=count; + } + break; + } + } + } + } + + return result; +} + +static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri) +{ + stbi_uc *result; + int i, x,y, internal_comp; + STBI_NOTUSED(ri); + + if (!comp) comp = &internal_comp; + + for (i=0; i<92; ++i) + stbi__get8(s); + + x = stbi__get16be(s); + y = stbi__get16be(s); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)"); + if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); + + stbi__get32be(s); //skip `ratio' + stbi__get16be(s); //skip `fields' + stbi__get16be(s); //skip `pad' + + // intermediate buffer is RGBA + result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0); + memset(result, 0xff, x*y*4); + + if (!stbi__pic_load_core(s,x,y,comp, result)) { + STBI_FREE(result); + result=0; + } + *px = x; + *py = y; + if (req_comp == 0) req_comp = *comp; + result=stbi__convert_format(result,4,req_comp,x,y); + + return result; +} + +static int stbi__pic_test(stbi__context *s) +{ + int r = stbi__pic_test_core(s); + stbi__rewind(s); + return r; +} +#endif + +// ************************************************************************************************* +// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb + +#ifndef STBI_NO_GIF +typedef struct +{ + stbi__int16 prefix; + stbi_uc first; + stbi_uc suffix; +} stbi__gif_lzw; + +typedef struct +{ + int w,h; + stbi_uc *out; // output buffer (always 4 components) + stbi_uc *background; // The current "background" as far as a gif is concerned + stbi_uc *history; + int flags, bgindex, ratio, transparent, eflags; + stbi_uc pal[256][4]; + stbi_uc lpal[256][4]; + stbi__gif_lzw codes[8192]; + stbi_uc *color_table; + int parse, step; + int lflags; + int start_x, start_y; + int max_x, max_y; + int cur_x, cur_y; + int line_size; + int delay; +} stbi__gif; + +static int stbi__gif_test_raw(stbi__context *s) +{ + int sz; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; + sz = stbi__get8(s); + if (sz != '9' && sz != '7') return 0; + if (stbi__get8(s) != 'a') return 0; + return 1; +} + +static int stbi__gif_test(stbi__context *s) +{ + int r = stbi__gif_test_raw(s); + stbi__rewind(s); + return r; +} + +static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp) +{ + int i; + for (i=0; i < num_entries; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + pal[i][3] = transp == i ? 0 : 255; + } +} + +static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info) +{ + stbi_uc version; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') + return stbi__err("not GIF", "Corrupt GIF"); + + version = stbi__get8(s); + if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); + if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); + + stbi__g_failure_reason = ""; + g->w = stbi__get16le(s); + g->h = stbi__get16le(s); + g->flags = stbi__get8(s); + g->bgindex = stbi__get8(s); + g->ratio = stbi__get8(s); + g->transparent = -1; + + if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments + + if (is_info) return 1; + + if (g->flags & 0x80) + stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1); + + return 1; +} + +static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif)); + if (!stbi__gif_header(s, g, comp, 1)) { + STBI_FREE(g); + stbi__rewind( s ); + return 0; + } + if (x) *x = g->w; + if (y) *y = g->h; + STBI_FREE(g); + return 1; +} + +static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code) +{ + stbi_uc *p, *c; + int idx; + + // recurse to decode the prefixes, since the linked-list is backwards, + // and working backwards through an interleaved image would be nasty + if (g->codes[code].prefix >= 0) + stbi__out_gif_code(g, g->codes[code].prefix); + + if (g->cur_y >= g->max_y) return; + + idx = g->cur_x + g->cur_y; + p = &g->out[idx]; + g->history[idx / 4] = 1; + + c = &g->color_table[g->codes[code].suffix * 4]; + if (c[3] > 128) { // don't render transparent pixels; + p[0] = c[2]; + p[1] = c[1]; + p[2] = c[0]; + p[3] = c[3]; + } + g->cur_x += 4; + + if (g->cur_x >= g->max_x) { + g->cur_x = g->start_x; + g->cur_y += g->step; + + while (g->cur_y >= g->max_y && g->parse > 0) { + g->step = (1 << g->parse) * g->line_size; + g->cur_y = g->start_y + (g->step >> 1); + --g->parse; + } + } +} + +static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g) +{ + stbi_uc lzw_cs; + stbi__int32 len, init_code; + stbi__uint32 first; + stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; + stbi__gif_lzw *p; + + lzw_cs = stbi__get8(s); + if (lzw_cs > 12) return NULL; + clear = 1 << lzw_cs; + first = 1; + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + bits = 0; + valid_bits = 0; + for (init_code = 0; init_code < clear; init_code++) { + g->codes[init_code].prefix = -1; + g->codes[init_code].first = (stbi_uc) init_code; + g->codes[init_code].suffix = (stbi_uc) init_code; + } + + // support no starting clear code + avail = clear+2; + oldcode = -1; + + len = 0; + for(;;) { + if (valid_bits < codesize) { + if (len == 0) { + len = stbi__get8(s); // start new block + if (len == 0) + return g->out; + } + --len; + bits |= (stbi__int32) stbi__get8(s) << valid_bits; + valid_bits += 8; + } else { + stbi__int32 code = bits & codemask; + bits >>= codesize; + valid_bits -= codesize; + // @OPTIMIZE: is there some way we can accelerate the non-clear path? + if (code == clear) { // clear code + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + avail = clear + 2; + oldcode = -1; + first = 0; + } else if (code == clear + 1) { // end of stream code + stbi__skip(s, len); + while ((len = stbi__get8(s)) > 0) + stbi__skip(s,len); + return g->out; + } else if (code <= avail) { + if (first) { + return stbi__errpuc("no clear code", "Corrupt GIF"); + } + + if (oldcode >= 0) { + p = &g->codes[avail++]; + if (avail > 8192) { + return stbi__errpuc("too many codes", "Corrupt GIF"); + } + + p->prefix = (stbi__int16) oldcode; + p->first = g->codes[oldcode].first; + p->suffix = (code == avail) ? p->first : g->codes[code].first; + } else if (code == avail) + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + + stbi__out_gif_code(g, (stbi__uint16) code); + + if ((avail & codemask) == 0 && avail <= 0x0FFF) { + codesize++; + codemask = (1 << codesize) - 1; + } + + oldcode = code; + } else { + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + } + } + } +} + +// this function is designed to support animated gifs, although stb_image doesn't support it +// two back is the image from two frames ago, used for a very specific disposal format +static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back) +{ + int dispose; + int first_frame; + int pi; + int pcount; + + // on first frame, any non-written pixels get the background colour (non-transparent) + first_frame = 0; + if (g->out == 0) { + if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header + g->out = (stbi_uc *) stbi__malloc(4 * g->w * g->h); + g->background = (stbi_uc *) stbi__malloc(4 * g->w * g->h); + g->history = (stbi_uc *) stbi__malloc(g->w * g->h); + if (g->out == 0) return stbi__errpuc("outofmem", "Out of memory"); + + // image is treated as "tranparent" at the start - ie, nothing overwrites the current background; + // background colour is only used for pixels that are not rendered first frame, after that "background" + // color refers to teh color that was there the previous frame. + memset( g->out, 0x00, 4 * g->w * g->h ); + memset( g->background, 0x00, 4 * g->w * g->h ); // state of the background (starts transparent) + memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame + first_frame = 1; + } else { + // second frame - how do we dispoase of the previous one? + dispose = (g->eflags & 0x1C) >> 2; + pcount = g->w * g->h; + + if ((dispose == 3) && (two_back == 0)) { + dispose = 2; // if I don't have an image to revert back to, default to the old background + } + + if (dispose == 3) { // use previous graphic + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 ); + } + } + } else if (dispose == 2) { + // restore what was changed last frame to background before that frame; + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 ); + } + } + } else { + // This is a non-disposal case eithe way, so just + // leave the pixels as is, and they will become the new background + // 1: do not dispose + // 0: not specified. + } + + // background is what out is after the undoing of the previou frame; + memcpy( g->background, g->out, 4 * g->w * g->h ); + } + + // clear my history; + memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame + + for (;;) { + int tag = stbi__get8(s); + switch (tag) { + case 0x2C: /* Image Descriptor */ + { + stbi__int32 x, y, w, h; + stbi_uc *o; + + x = stbi__get16le(s); + y = stbi__get16le(s); + w = stbi__get16le(s); + h = stbi__get16le(s); + if (((x + w) > (g->w)) || ((y + h) > (g->h))) + return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); + + g->line_size = g->w * 4; + g->start_x = x * 4; + g->start_y = y * g->line_size; + g->max_x = g->start_x + w * 4; + g->max_y = g->start_y + h * g->line_size; + g->cur_x = g->start_x; + g->cur_y = g->start_y; + + g->lflags = stbi__get8(s); + + if (g->lflags & 0x40) { + g->step = 8 * g->line_size; // first interlaced spacing + g->parse = 3; + } else { + g->step = g->line_size; + g->parse = 0; + } + + if (g->lflags & 0x80) { + stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); + g->color_table = (stbi_uc *) g->lpal; + } else if (g->flags & 0x80) { + g->color_table = (stbi_uc *) g->pal; + } else + return stbi__errpuc("missing color table", "Corrupt GIF"); + + o = stbi__process_gif_raster(s, g); + if (o == NULL) return NULL; + + // if this was the first frame, + pcount = g->w * g->h; + if (first_frame && (g->bgindex > 0)) { + // if first frame, any pixel not drawn to gets the background color + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi] == 0) { + g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; + memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 ); + } + } + } + + return o; + } + + case 0x21: // Comment Extension. + { + int len; + int ext = stbi__get8(s); + if (ext == 0xF9) { // Graphic Control Extension. + len = stbi__get8(s); + if (len == 4) { + g->eflags = stbi__get8(s); + g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. + + // unset old transparent + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 255; + } + if (g->eflags & 0x01) { + g->transparent = stbi__get8(s); + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 0; + } + } else { + // don't need transparent + stbi__skip(s, 1); + g->transparent = -1; + } + } else { + stbi__skip(s, len); + break; + } + } + while ((len = stbi__get8(s)) != 0) { + stbi__skip(s, len); + } + break; + } + + case 0x3B: // gif stream termination code + return (stbi_uc *) s; // using '1' causes warning on some compilers + + default: + return stbi__errpuc("unknown code", "Corrupt GIF"); + } + } +} + +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + if (stbi__gif_test(s)) { + int layers = 0; + stbi_uc *u = 0; + stbi_uc *out = 0; + stbi_uc *two_back = 0; + stbi__gif g; + int stride; + memset(&g, 0, sizeof(g)); + if (delays) { + *delays = 0; + } + + do { + u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + + if (u) { + *x = g.w; + *y = g.h; + ++layers; + stride = g.w * g.h * 4; + + if (out) { + out = (stbi_uc*) STBI_REALLOC( out, layers * stride ); + if (delays) { + *delays = (int*) STBI_REALLOC( *delays, sizeof(int) * layers ); + } + } else { + out = (stbi_uc*)stbi__malloc( layers * stride ); + if (delays) { + *delays = (int*) stbi__malloc( layers * sizeof(int) ); + } + } + memcpy( out + ((layers - 1) * stride), u, stride ); + if (layers >= 2) { + two_back = out - 2 * stride; + } + + if (delays) { + (*delays)[layers - 1U] = g.delay; + } + } + } while (u != 0); + + // free temp buffer; + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); + + // do the final conversion after loading everything; + if (req_comp && req_comp != 4) + out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); + + *z = layers; + return out; + } else { + return stbi__errpuc("not GIF", "Image was not as a gif type."); + } +} + +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *u = 0; + stbi__gif g; + memset(&g, 0, sizeof(g)); + + u = stbi__gif_load_next(s, &g, comp, req_comp, 0); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + if (u) { + *x = g.w; + *y = g.h; + + // moved conversion to after successful load so that the same + // can be done for multiple frames. + if (req_comp && req_comp != 4) + u = stbi__convert_format(u, 4, req_comp, g.w, g.h); + } + + // free buffers needed for multiple frame loading; + STBI_FREE(g.history); + STBI_FREE(g.background); + + return u; +} + +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp) +{ + return stbi__gif_info_raw(s,x,y,comp); +} +#endif + +// ************************************************************************************************* +// Radiance RGBE HDR loader +// originally by Nicolas Schulz +#ifndef STBI_NO_HDR +static int stbi__hdr_test_core(stbi__context *s, const char *signature) +{ + int i; + for (i=0; signature[i]; ++i) + if (stbi__get8(s) != signature[i]) + return 0; + stbi__rewind(s); + return 1; +} + +static int stbi__hdr_test(stbi__context* s) +{ + int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); + stbi__rewind(s); + if(!r) { + r = stbi__hdr_test_core(s, "#?RGBE\n"); + stbi__rewind(s); + } + return r; +} + +#define STBI__HDR_BUFLEN 1024 +static char *stbi__hdr_gettoken(stbi__context *z, char *buffer) +{ + int len=0; + char c = '\0'; + + c = (char) stbi__get8(z); + + while (!stbi__at_eof(z) && c != '\n') { + buffer[len++] = c; + if (len == STBI__HDR_BUFLEN-1) { + // flush to end of line + while (!stbi__at_eof(z) && stbi__get8(z) != '\n') + ; + break; + } + c = (char) stbi__get8(z); + } + + buffer[len] = 0; + return buffer; +} + +static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp) +{ + if ( input[3] != 0 ) { + float f1; + // Exponent + f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8)); + if (req_comp <= 2) + output[0] = (input[0] + input[1] + input[2]) * f1 / 3; + else { + output[0] = input[0] * f1; + output[1] = input[1] * f1; + output[2] = input[2] * f1; + } + if (req_comp == 2) output[1] = 1; + if (req_comp == 4) output[3] = 1; + } else { + switch (req_comp) { + case 4: output[3] = 1; /* fallthrough */ + case 3: output[0] = output[1] = output[2] = 0; + break; + case 2: output[1] = 1; /* fallthrough */ + case 1: output[0] = 0; + break; + } + } +} + +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int width, height; + stbi_uc *scanline; + float *hdr_data; + int len; + unsigned char count, value; + int i, j, k, c1,c2, z; + const char *headerToken; + STBI_NOTUSED(ri); + + // Check identifier + headerToken = stbi__hdr_gettoken(s,buffer); + if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) + return stbi__errpf("not HDR", "Corrupt HDR image"); + + // Parse header + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); + + // Parse width and height + // can't use sscanf() if we're not using stdio! + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + height = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + width = (int) strtol(token, NULL, 10); + + *x = width; + *y = height; + + if (comp) *comp = 3; + if (req_comp == 0) req_comp = 3; + + if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) + return stbi__errpf("too large", "HDR image is too large"); + + // Read data + hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); + if (!hdr_data) + return stbi__errpf("outofmem", "Out of memory"); + + // Load image data + // image data is stored as some number of sca + if ( width < 8 || width >= 32768) { + // Read flat data + for (j=0; j < height; ++j) { + for (i=0; i < width; ++i) { + stbi_uc rgbe[4]; + main_decode_loop: + stbi__getn(s, rgbe, 4); + stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); + } + } + } else { + // Read RLE-encoded data + scanline = NULL; + + for (j = 0; j < height; ++j) { + c1 = stbi__get8(s); + c2 = stbi__get8(s); + len = stbi__get8(s); + if (c1 != 2 || c2 != 2 || (len & 0x80)) { + // not run-length encoded, so we have to actually use THIS data as a decoded + // pixel (note this can't be a valid pixel--one of RGB must be >= 128) + stbi_uc rgbe[4]; + rgbe[0] = (stbi_uc) c1; + rgbe[1] = (stbi_uc) c2; + rgbe[2] = (stbi_uc) len; + rgbe[3] = (stbi_uc) stbi__get8(s); + stbi__hdr_convert(hdr_data, rgbe, req_comp); + i = 1; + j = 0; + STBI_FREE(scanline); + goto main_decode_loop; // yes, this makes no sense + } + len <<= 8; + len |= stbi__get8(s); + if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); } + if (scanline == NULL) { + scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0); + if (!scanline) { + STBI_FREE(hdr_data); + return stbi__errpf("outofmem", "Out of memory"); + } + } + + for (k = 0; k < 4; ++k) { + int nleft; + i = 0; + while ((nleft = width - i) > 0) { + count = stbi__get8(s); + if (count > 128) { + // Run + value = stbi__get8(s); + count -= 128; + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = value; + } else { + // Dump + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = stbi__get8(s); + } + } + } + for (i=0; i < width; ++i) + stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp); + } + if (scanline) + STBI_FREE(scanline); + } + + return hdr_data; +} + +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int dummy; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (stbi__hdr_test(s) == 0) { + stbi__rewind( s ); + return 0; + } + + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) { + stbi__rewind( s ); + return 0; + } + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *y = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *x = (int) strtol(token, NULL, 10); + *comp = 3; + return 1; +} +#endif // STBI_NO_HDR + +#ifndef STBI_NO_BMP +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp) +{ + void *p; + stbi__bmp_data info; + + info.all_a = 255; + p = stbi__bmp_parse_header(s, &info); + stbi__rewind( s ); + if (p == NULL) + return 0; + if (x) *x = s->img_x; + if (y) *y = s->img_y; + if (comp) *comp = info.ma ? 4 : 3; + return 1; +} +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp) +{ + int channelCount, dummy, depth; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + *y = stbi__get32be(s); + *x = stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 8 && depth != 16) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 3) { + stbi__rewind( s ); + return 0; + } + *comp = 4; + return 1; +} + +static int stbi__psd_is16(stbi__context *s) +{ + int channelCount, depth; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + (void) stbi__get32be(s); + (void) stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 16) { + stbi__rewind( s ); + return 0; + } + return 1; +} +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp) +{ + int act_comp=0,num_packets=0,chained,dummy; + stbi__pic_packet packets[10]; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) { + stbi__rewind(s); + return 0; + } + + stbi__skip(s, 88); + + *x = stbi__get16be(s); + *y = stbi__get16be(s); + if (stbi__at_eof(s)) { + stbi__rewind( s); + return 0; + } + if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) { + stbi__rewind( s ); + return 0; + } + + stbi__skip(s, 8); + + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return 0; + + packet = &packets[num_packets++]; + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + act_comp |= packet->channel; + + if (stbi__at_eof(s)) { + stbi__rewind( s ); + return 0; + } + if (packet->size != 8) { + stbi__rewind( s ); + return 0; + } + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); + + return 1; +} +#endif + +// ************************************************************************************************* +// Portable Gray Map and Portable Pixel Map loader +// by Ken Miller +// +// PGM: http://netpbm.sourceforge.net/doc/pgm.html +// PPM: http://netpbm.sourceforge.net/doc/ppm.html +// +// Known limitations: +// Does not support comments in the header section +// Does not support ASCII image data (formats P2 and P3) +// Does not support 16-bit-per-channel + +#ifndef STBI_NO_PNM + +static int stbi__pnm_test(stbi__context *s) +{ + char p, t; + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind( s ); + return 0; + } + return 1; +} + +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + STBI_NOTUSED(ri); + + if (!stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n)) + return 0; + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + + if (!stbi__mad3sizes_valid(s->img_n, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "PNM too large"); + + out = (stbi_uc *) stbi__malloc_mad3(s->img_n, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + stbi__getn(s, out, s->img_n * s->img_x * s->img_y); + + if (req_comp && req_comp != s->img_n) { + out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + return out; +} + +static int stbi__pnm_isspace(char c) +{ + return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; +} + +static void stbi__pnm_skip_whitespace(stbi__context *s, char *c) +{ + for (;;) { + while (!stbi__at_eof(s) && stbi__pnm_isspace(*c)) + *c = (char) stbi__get8(s); + + if (stbi__at_eof(s) || *c != '#') + break; + + while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' ) + *c = (char) stbi__get8(s); + } +} + +static int stbi__pnm_isdigit(char c) +{ + return c >= '0' && c <= '9'; +} + +static int stbi__pnm_getinteger(stbi__context *s, char *c) +{ + int value = 0; + + while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { + value = value*10 + (*c - '0'); + *c = (char) stbi__get8(s); + } + + return value; +} + +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp) +{ + int maxv, dummy; + char c, p, t; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + stbi__rewind(s); + + // Get identifier + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind(s); + return 0; + } + + *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm + + c = (char) stbi__get8(s); + stbi__pnm_skip_whitespace(s, &c); + + *x = stbi__pnm_getinteger(s, &c); // read width + stbi__pnm_skip_whitespace(s, &c); + + *y = stbi__pnm_getinteger(s, &c); // read height + stbi__pnm_skip_whitespace(s, &c); + + maxv = stbi__pnm_getinteger(s, &c); // read max value + + if (maxv > 255) + return stbi__err("max value > 255", "PPM image not 8-bit"); + else + return 1; +} +#endif + +static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp) +{ + #ifndef STBI_NO_JPEG + if (stbi__jpeg_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNG + if (stbi__png_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_GIF + if (stbi__gif_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_BMP + if (stbi__bmp_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PIC + if (stbi__pic_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNM + if (stbi__pnm_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_info(s, x, y, comp)) return 1; + #endif + + // test tga last because it's a crappy test! + #ifndef STBI_NO_TGA + if (stbi__tga_info(s, x, y, comp)) + return 1; + #endif + return stbi__err("unknown image type", "Image not of any known type, or corrupt"); +} + +static int stbi__is_16_main(stbi__context *s) +{ + #ifndef STBI_NO_PNG + if (stbi__png_is16(s)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_is16(s)) return 1; + #endif + + return 0; +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_info_from_file(f, x, y, comp); + fclose(f); + return result; +} + +STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__info_main(&s,x,y,comp); + if (pos >= 0) { + if (fseek(f,pos,SEEK_SET) == -1) return stbi__err("fseek() error", "File Seek Fail"); + } + return r; +} + +STBIDEF int stbi_is_16_bit(char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_is_16_bit_from_file(f); + fclose(f); + return result; +} + +STBIDEF int stbi_is_16_bit_from_file(FILE *f) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__is_16_main(&s); + if (pos >= 0) { + if (fseek(f,pos,SEEK_SET) == -1) return stbi__err("fseek() error", "File Seek Fail"); + } + return r; +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__is_16_main(&s); +} + +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__is_16_main(&s); +} + +#endif // STB_IMAGE_IMPLEMENTATION + +/* + revision history: + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug + 1-bit BMP + *_is_16_bit api + avoid warnings + 2.16 (2017-07-23) all functions have 16-bit variants; + STBI_NO_STDIO works again; + compilation fixes; + fix rounding in unpremultiply; + optimize vertical flip; + disable raw_len validation; + documentation fixes + 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode; + warning fixes; disable run-time SSE detection on gcc; + uniform handling of optional "return" values; + thread-safe initialization of zlib tables + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) allocate large structures on the stack + remove white matting for transparent PSD + fix reported channel count for PNG & BMP + re-enable SSE2 in non-gcc 64-bit + support RGB-formatted JPEG + read 16-bit PNGs (only as 8-bit) + 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED + 2.09 (2016-01-16) allow comments in PNM files + 16-bit-per-pixel TGA (not bit-per-component) + info() for TGA could break due to .hdr handling + info() for BMP to shares code instead of sloppy parse + can use STBI_REALLOC_SIZED if allocator doesn't support realloc + code cleanup + 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA + 2.07 (2015-09-13) fix compiler warnings + partial animated GIF support + limited 16-bpc PSD support + #ifdef unused functions + bug with < 92 byte PIC,PNM,HDR,TGA + 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value + 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning + 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit + 2.03 (2015-04-12) extra corruption checking (mmozeiko) + stbi_set_flip_vertically_on_load (nguillemot) + fix NEON support; fix mingw support + 2.02 (2015-01-19) fix incorrect assert, fix warning + 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2 + 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG + 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) + progressive JPEG (stb) + PGM/PPM support (Ken Miller) + STBI_MALLOC,STBI_REALLOC,STBI_FREE + GIF bugfix -- seemingly never worked + STBI_NO_*, STBI_ONLY_* + 1.48 (2014-12-14) fix incorrectly-named assert() + 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb) + optimize PNG (ryg) + fix bug in interlaced PNG with user-specified channel count (stb) + 1.46 (2014-08-26) + fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG + 1.45 (2014-08-16) + fix MSVC-ARM internal compiler error by wrapping malloc + 1.44 (2014-08-07) + various warning fixes from Ronny Chevalier + 1.43 (2014-07-15) + fix MSVC-only compiler problem in code changed in 1.42 + 1.42 (2014-07-09) + don't define _CRT_SECURE_NO_WARNINGS (affects user code) + fixes to stbi__cleanup_jpeg path + added STBI_ASSERT to avoid requiring assert.h + 1.41 (2014-06-25) + fix search&replace from 1.36 that messed up comments/error messages + 1.40 (2014-06-22) + fix gcc struct-initialization warning + 1.39 (2014-06-15) + fix to TGA optimization when req_comp != number of components in TGA; + fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) + add support for BMP version 5 (more ignored fields) + 1.38 (2014-06-06) + suppress MSVC warnings on integer casts truncating values + fix accidental rename of 'skip' field of I/O + 1.37 (2014-06-04) + remove duplicate typedef + 1.36 (2014-06-03) + convert to header file single-file library + if de-iphone isn't set, load iphone images color-swapped instead of returning NULL + 1.35 (2014-05-27) + various warnings + fix broken STBI_SIMD path + fix bug where stbi_load_from_file no longer left file pointer in correct place + fix broken non-easy path for 32-bit BMP (possibly never used) + TGA optimization by Arseny Kapoulkine + 1.34 (unknown) + use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case + 1.33 (2011-07-14) + make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements + 1.32 (2011-07-13) + support for "info" function for all supported filetypes (SpartanJ) + 1.31 (2011-06-20) + a few more leak fixes, bug in PNG handling (SpartanJ) + 1.30 (2011-06-11) + added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) + removed deprecated format-specific test/load functions + removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway + error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) + fix inefficiency in decoding 32-bit BMP (David Woo) + 1.29 (2010-08-16) + various warning fixes from Aurelien Pocheville + 1.28 (2010-08-01) + fix bug in GIF palette transparency (SpartanJ) + 1.27 (2010-08-01) + cast-to-stbi_uc to fix warnings + 1.26 (2010-07-24) + fix bug in file buffering for PNG reported by SpartanJ + 1.25 (2010-07-17) + refix trans_data warning (Won Chun) + 1.24 (2010-07-12) + perf improvements reading from files on platforms with lock-heavy fgetc() + minor perf improvements for jpeg + deprecated type-specific functions so we'll get feedback if they're needed + attempt to fix trans_data warning (Won Chun) + 1.23 fixed bug in iPhone support + 1.22 (2010-07-10) + removed image *writing* support + stbi_info support from Jetro Lauha + GIF support from Jean-Marc Lienher + iPhone PNG-extensions from James Brown + warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) + 1.21 fix use of 'stbi_uc' in header (reported by jon blow) + 1.20 added support for Softimage PIC, by Tom Seddon + 1.19 bug in interlaced PNG corruption check (found by ryg) + 1.18 (2008-08-02) + fix a threading bug (local mutable static) + 1.17 support interlaced PNG + 1.16 major bugfix - stbi__convert_format converted one too many pixels + 1.15 initialize some fields for thread safety + 1.14 fix threadsafe conversion bug + header-file-only version (#define STBI_HEADER_FILE_ONLY before including) + 1.13 threadsafe + 1.12 const qualifiers in the API + 1.11 Support installable IDCT, colorspace conversion routines + 1.10 Fixes for 64-bit (don't use "unsigned long") + optimized upsampling by Fabian "ryg" Giesen + 1.09 Fix format-conversion for PSD code (bad global variables!) + 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz + 1.07 attempt to fix C++ warning/errors again + 1.06 attempt to fix C++ warning/errors again + 1.05 fix TGA loading to return correct *comp and use good luminance calc + 1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free + 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR + 1.02 support for (subset of) HDR files, float interface for preferred access to them + 1.01 fix bug: possible bug in handling right-side up bmps... not sure + fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all + 1.00 interface to zlib that skips zlib header + 0.99 correct handling of alpha in palette + 0.98 TGA loader by lonesock; dynamically add loaders (untested) + 0.97 jpeg errors on too large a file; also catch another malloc failure + 0.96 fix detection of invalid v value - particleman@mollyrocket forum + 0.95 during header scan, seek to markers in case of padding + 0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same + 0.93 handle jpegtran output; verbose errors + 0.92 read 4,8,16,24,32-bit BMP files of several formats + 0.91 output 24-bit Windows 3.0 BMP files + 0.90 fix a few more warnings; bump version number to approach 1.0 + 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd + 0.60 fix compiling as c++ + 0.59 fix warnings: merge Dave Moore's -Wall fixes + 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian + 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available + 0.56 fix bug: zlib uncompressed mode len vs. nlen + 0.55 fix bug: restart_interval not initialized to 0 + 0.54 allow NULL for 'int *comp' + 0.53 fix bug in png 3->4; speedup png decoding + 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments + 0.51 obey req_comp requests, 1-component jpegs return as 1-component, + on 'test' only check type, not whether we support this variant + 0.50 (2006-11-19) + first released version +*/ + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/vendor/github.com/Benau/go_rlottie/vector_varenaalloc.cpp b/vendor/github.com/Benau/go_rlottie/vector_varenaalloc.cpp new file mode 100644 index 00000000..55bd3793 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_varenaalloc.cpp @@ -0,0 +1,166 @@ +/* + * Copyright 2016 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "vector_varenaalloc.h" +#include <algorithm> +#include <new> + +static char* end_chain(char*) { return nullptr; } + +static uint32_t first_allocated_block(uint32_t blockSize, uint32_t firstHeapAllocation) { + return firstHeapAllocation > 0 ? firstHeapAllocation : + blockSize > 0 ? blockSize : 1024; +} + +VArenaAlloc::VArenaAlloc(char* block, size_t size, size_t firstHeapAllocation) + : fDtorCursor {block} + , fCursor {block} + , fEnd {block + ToU32(size)} + , fFirstBlock {block} + , fFirstSize {ToU32(size)} + , fFirstHeapAllocationSize {first_allocated_block(ToU32(size), ToU32(firstHeapAllocation))} +{ + if (size < sizeof(Footer)) { + fEnd = fCursor = fDtorCursor = nullptr; + } + + if (fCursor != nullptr) { + this->installFooter(end_chain, 0); + } +} + +VArenaAlloc::~VArenaAlloc() { + RunDtorsOnBlock(fDtorCursor); +} + +void VArenaAlloc::reset() { + this->~VArenaAlloc(); + new (this) VArenaAlloc{fFirstBlock, fFirstSize, fFirstHeapAllocationSize}; +} + +void VArenaAlloc::installFooter(FooterAction* action, uint32_t padding) { + assert(padding < 64); + int64_t actionInt = (int64_t)(intptr_t)action; + + // The top 14 bits should be either all 0s or all 1s. Check this. + assert((actionInt << 6) >> 6 == actionInt); + Footer encodedFooter = (actionInt << 6) | padding; + memmove(fCursor, &encodedFooter, sizeof(Footer)); + fCursor += sizeof(Footer); + fDtorCursor = fCursor; +} + +void VArenaAlloc::installPtrFooter(FooterAction* action, char* ptr, uint32_t padding) { + memmove(fCursor, &ptr, sizeof(char*)); + fCursor += sizeof(char*); + this->installFooter(action, padding); +} + +char* VArenaAlloc::SkipPod(char* footerEnd) { + char* objEnd = footerEnd - (sizeof(Footer) + sizeof(int32_t)); + int32_t skip; + memmove(&skip, objEnd, sizeof(int32_t)); + return objEnd - skip; +} + +void VArenaAlloc::RunDtorsOnBlock(char* footerEnd) { + while (footerEnd != nullptr) { + Footer footer; + memcpy(&footer, footerEnd - sizeof(Footer), sizeof(Footer)); + + FooterAction* action = (FooterAction*)(footer >> 6); + ptrdiff_t padding = footer & 63; + + footerEnd = action(footerEnd) - padding; + } +} + +char* VArenaAlloc::NextBlock(char* footerEnd) { + char* objEnd = footerEnd - (sizeof(Footer) + sizeof(char*)); + char* next; + memmove(&next, objEnd, sizeof(char*)); + RunDtorsOnBlock(next); + delete [] objEnd; + return nullptr; +} + +void VArenaAlloc::installUint32Footer(FooterAction* action, uint32_t value, uint32_t padding) { + memmove(fCursor, &value, sizeof(uint32_t)); + fCursor += sizeof(uint32_t); + this->installFooter(action, padding); +} + +void VArenaAlloc::ensureSpace(uint32_t size, uint32_t alignment) { + constexpr uint32_t headerSize = sizeof(Footer) + sizeof(ptrdiff_t); + // The chrome c++ library we use does not define std::max_align_t. + // This must be conservative to add the right amount of extra memory to handle the alignment + // padding. + constexpr uint32_t alignof_max_align_t = 8; + constexpr uint32_t maxSize = std::numeric_limits<uint32_t>::max(); + constexpr uint32_t overhead = headerSize + sizeof(Footer); + AssertRelease(size <= maxSize - overhead); + uint32_t objSizeAndOverhead = size + overhead; + if (alignment > alignof_max_align_t) { + uint32_t alignmentOverhead = alignment - 1; + AssertRelease(objSizeAndOverhead <= maxSize - alignmentOverhead); + objSizeAndOverhead += alignmentOverhead; + } + + uint32_t minAllocationSize; + if (fFirstHeapAllocationSize <= maxSize / fFib0) { + minAllocationSize = fFirstHeapAllocationSize * fFib0; + fFib0 += fFib1; + std::swap(fFib0, fFib1); + } else { + minAllocationSize = maxSize; + } + uint32_t allocationSize = std::max(objSizeAndOverhead, minAllocationSize); + + // Round up to a nice size. If > 32K align to 4K boundary else up to max_align_t. The > 32K + // heuristic is from the JEMalloc behavior. + { + uint32_t mask = allocationSize > (1 << 15) ? (1 << 12) - 1 : 16 - 1; + AssertRelease(allocationSize <= maxSize - mask); + allocationSize = (allocationSize + mask) & ~mask; + } + + char* newBlock = new char[allocationSize]; + + auto previousDtor = fDtorCursor; + fCursor = newBlock; + fDtorCursor = newBlock; + fEnd = fCursor + allocationSize; + this->installPtrFooter(NextBlock, previousDtor, 0); +} + +char* VArenaAlloc::allocObjectWithFooter(uint32_t sizeIncludingFooter, uint32_t alignment) { + uintptr_t mask = alignment - 1; + +restart: + uint32_t skipOverhead = 0; + bool needsSkipFooter = fCursor != fDtorCursor; + if (needsSkipFooter) { + skipOverhead = sizeof(Footer) + sizeof(uint32_t); + } + char* objStart = (char*)((uintptr_t)(fCursor + skipOverhead + mask) & ~mask); + uint32_t totalSize = sizeIncludingFooter + skipOverhead; + //std::cout<<"non POD object size = "<<totalSize<<"\n"; + if ((ptrdiff_t)totalSize > fEnd - objStart) { + this->ensureSpace(totalSize, alignment); + goto restart; + } + + AssertRelease((ptrdiff_t)totalSize <= fEnd - objStart); + + // Install a skip footer if needed, thus terminating a run of POD data. The calling code is + // responsible for installing the footer after the object. + if (needsSkipFooter) { + this->installUint32Footer(SkipPod, ToU32(fCursor - fDtorCursor), 0); + } + + return objStart; +} diff --git a/vendor/github.com/Benau/go_rlottie/vector_varenaalloc.h b/vendor/github.com/Benau/go_rlottie/vector_varenaalloc.h new file mode 100644 index 00000000..ed03b53f --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_varenaalloc.h @@ -0,0 +1,232 @@ +/* + * Copyright 2016 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef VARENAALLOC_H +#define VARENAALLOC_H +#include <cassert> +#include <cstddef> +#include <cstdint> +#include <cstdlib> +#include <cstring> +#include <limits> +#include <new> +#include <type_traits> +#include <utility> +#include <vector> + +// SkArenaAlloc allocates object and destroys the allocated objects when destroyed. It's designed +// to minimize the number of underlying block allocations. SkArenaAlloc allocates first out of an +// (optional) user-provided block of memory, and when that's exhausted it allocates on the heap, +// starting with an allocation of firstHeapAllocation bytes. If your data (plus a small overhead) +// fits in the user-provided block, SkArenaAlloc never uses the heap, and if it fits in +// firstHeapAllocation bytes, it'll use the heap only once. If 0 is specified for +// firstHeapAllocation, then blockSize is used unless that too is 0, then 1024 is used. +// +// Examples: +// +// char block[mostCasesSize]; +// SkArenaAlloc arena(block, mostCasesSize); +// +// If mostCasesSize is too large for the stack, you can use the following pattern. +// +// std::unique_ptr<char[]> block{new char[mostCasesSize]}; +// SkArenaAlloc arena(block.get(), mostCasesSize, almostAllCasesSize); +// +// If the program only sometimes allocates memory, use the following pattern. +// +// SkArenaAlloc arena(nullptr, 0, almostAllCasesSize); +// +// The storage does not necessarily need to be on the stack. Embedding the storage in a class also +// works. +// +// class Foo { +// char storage[mostCasesSize]; +// SkArenaAlloc arena (storage, mostCasesSize); +// }; +// +// In addition, the system is optimized to handle POD data including arrays of PODs (where +// POD is really data with no destructors). For POD data it has zero overhead per item, and a +// typical per block overhead of 8 bytes. For non-POD objects there is a per item overhead of 4 +// bytes. For arrays of non-POD objects there is a per array overhead of typically 8 bytes. There +// is an addition overhead when switching from POD data to non-POD data of typically 8 bytes. +// +// If additional blocks are needed they are increased exponentially. This strategy bounds the +// recursion of the RunDtorsOnBlock to be limited to O(log size-of-memory). Block size grow using +// the Fibonacci sequence which means that for 2^32 memory there are 48 allocations, and for 2^48 +// there are 71 allocations. +class VArenaAlloc { +public: + VArenaAlloc(char* block, size_t blockSize, size_t firstHeapAllocation); + + explicit VArenaAlloc(size_t firstHeapAllocation) + : VArenaAlloc(nullptr, 0, firstHeapAllocation) + {} + + ~VArenaAlloc(); + + template <typename T, typename... Args> + T* make(Args&&... args) { + uint32_t size = ToU32(sizeof(T)); + uint32_t alignment = ToU32(alignof(T)); + char* objStart; + if (std::is_trivially_destructible<T>::value) { + objStart = this->allocObject(size, alignment); + fCursor = objStart + size; + } else { + objStart = this->allocObjectWithFooter(size + sizeof(Footer), alignment); + // Can never be UB because max value is alignof(T). + uint32_t padding = ToU32(objStart - fCursor); + + // Advance to end of object to install footer. + fCursor = objStart + size; + FooterAction* releaser = [](char* objEnd) { + char* objStart = objEnd - (sizeof(T) + sizeof(Footer)); + ((T*)objStart)->~T(); + return objStart; + }; + this->installFooter(releaser, padding); + } + + // This must be last to make objects with nested use of this allocator work. + return new(objStart) T(std::forward<Args>(args)...); + } + + template <typename T> + T* makeArrayDefault(size_t count) { + uint32_t safeCount = ToU32(count); + T* array = (T*)this->commonArrayAlloc<T>(safeCount); + + // If T is primitive then no initialization takes place. + for (size_t i = 0; i < safeCount; i++) { + new (&array[i]) T; + } + return array; + } + + template <typename T> + T* makeArray(size_t count) { + uint32_t safeCount = ToU32(count); + T* array = (T*)this->commonArrayAlloc<T>(safeCount); + + // If T is primitive then the memory is initialized. For example, an array of chars will + // be zeroed. + for (size_t i = 0; i < safeCount; i++) { + new (&array[i]) T(); + } + return array; + } + + // Only use makeBytesAlignedTo if none of the typed variants are impractical to use. + void* makeBytesAlignedTo(size_t size, size_t align) { + auto objStart = this->allocObject(ToU32(size), ToU32(align)); + fCursor = objStart + size; + return objStart; + } + + // Destroy all allocated objects, free any heap allocations. + void reset(); + +private: + static void AssertRelease(bool cond) { if (!cond) { ::abort(); } } + static uint32_t ToU32(size_t v) { + return (uint32_t)v; + } + + using Footer = int64_t; + using FooterAction = char* (char*); + + static char* SkipPod(char* footerEnd); + static void RunDtorsOnBlock(char* footerEnd); + static char* NextBlock(char* footerEnd); + + void installFooter(FooterAction* releaser, uint32_t padding); + void installUint32Footer(FooterAction* action, uint32_t value, uint32_t padding); + void installPtrFooter(FooterAction* action, char* ptr, uint32_t padding); + + void ensureSpace(uint32_t size, uint32_t alignment); + + char* allocObject(uint32_t size, uint32_t alignment) { + uintptr_t mask = alignment - 1; + uintptr_t alignedOffset = (~reinterpret_cast<uintptr_t>(fCursor) + 1) & mask; + uintptr_t totalSize = size + alignedOffset; + AssertRelease(totalSize >= size); + + if (totalSize > static_cast<uintptr_t>(fEnd - fCursor)) { + this->ensureSpace(size, alignment); + alignedOffset = (~reinterpret_cast<uintptr_t>(fCursor) + 1) & mask; + } + return fCursor + alignedOffset; + } + + char* allocObjectWithFooter(uint32_t sizeIncludingFooter, uint32_t alignment); + + template <typename T> + char* commonArrayAlloc(uint32_t count) { + char* objStart; + AssertRelease(count <= std::numeric_limits<uint32_t>::max() / sizeof(T)); + uint32_t arraySize = ToU32(count * sizeof(T)); + uint32_t alignment = ToU32(alignof(T)); + + if (std::is_trivially_destructible<T>::value) { + objStart = this->allocObject(arraySize, alignment); + fCursor = objStart + arraySize; + } else { + constexpr uint32_t overhead = sizeof(Footer) + sizeof(uint32_t); + AssertRelease(arraySize <= std::numeric_limits<uint32_t>::max() - overhead); + uint32_t totalSize = arraySize + overhead; + objStart = this->allocObjectWithFooter(totalSize, alignment); + + // Can never be UB because max value is alignof(T). + uint32_t padding = ToU32(objStart - fCursor); + + // Advance to end of array to install footer.? + fCursor = objStart + arraySize; + this->installUint32Footer( + [](char* footerEnd) { + char* objEnd = footerEnd - (sizeof(Footer) + sizeof(uint32_t)); + uint32_t count; + memmove(&count, objEnd, sizeof(uint32_t)); + char* objStart = objEnd - count * sizeof(T); + T* array = (T*) objStart; + for (uint32_t i = 0; i < count; i++) { + array[i].~T(); + } + return objStart; + }, + ToU32(count), + padding); + } + + return objStart; + } + + char* fDtorCursor; + char* fCursor; + char* fEnd; + char* const fFirstBlock; + const uint32_t fFirstSize; + const uint32_t fFirstHeapAllocationSize; + + // Use the Fibonacci sequence as the growth factor for block size. The size of the block + // allocated is fFib0 * fFirstHeapAllocationSize. Using 2 ^ n * fFirstHeapAllocationSize + // had too much slop for Android. + uint32_t fFib0 {1}, fFib1 {1}; +}; + +// Helper for defining allocators with inline/reserved storage. +// For argument declarations, stick to the base type (SkArenaAlloc). +template <size_t InlineStorageSize> +class VSTArenaAlloc : public VArenaAlloc { +public: + explicit VSTArenaAlloc(size_t firstHeapAllocation = InlineStorageSize) + : VArenaAlloc(fInlineStorage, InlineStorageSize, firstHeapAllocation) {} + +private: + char fInlineStorage[InlineStorageSize]; +}; + +#endif // VARENAALLOC_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vbezier.cpp b/vendor/github.com/Benau/go_rlottie/vector_vbezier.cpp new file mode 100644 index 00000000..3aa324e7 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vbezier.cpp @@ -0,0 +1,135 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vbezier.h" +#include <cmath> +#include "vector_vline.h" + +V_BEGIN_NAMESPACE + +VBezier VBezier::fromPoints(const VPointF &p1, const VPointF &p2, + const VPointF &p3, const VPointF &p4) +{ + VBezier b; + b.x1 = p1.x(); + b.y1 = p1.y(); + b.x2 = p2.x(); + b.y2 = p2.y(); + b.x3 = p3.x(); + b.y3 = p3.y(); + b.x4 = p4.x(); + b.y4 = p4.y(); + return b; +} + +float VBezier::length() const +{ + const auto len = VLine::length(x1, y1, x2, y2) + + VLine::length(x2, y2, x3, y3) + + VLine::length(x3, y3, x4, y4); + + const auto chord = VLine::length(x1, y1, x4, y4); + + if ((len - chord) > 0.01) { + VBezier left, right; + split(&left, &right); + return left.length() + right.length(); + } + + return len; +} + +VBezier VBezier::onInterval(float t0, float t1) const +{ + if (t0 == 0 && t1 == 1) return *this; + + VBezier bezier = *this; + + VBezier result; + bezier.parameterSplitLeft(t0, &result); + float trueT = (t1 - t0) / (1 - t0); + bezier.parameterSplitLeft(trueT, &result); + + return result; +} + +float VBezier::tAtLength(float l, float totalLength) const +{ + float t = 1.0; + const float error = 0.01f; + if (l > totalLength || vCompare(l, totalLength)) return t; + + t *= 0.5; + + float lastBigger = 1.0; + for (int num = 0; num < 100500; num++) { + VBezier right = *this; + VBezier left; + right.parameterSplitLeft(t, &left); + float lLen = left.length(); + if (fabs(lLen - l) < error) return t; + + if (lLen < l) { + t += (lastBigger - t) * 0.5f; + } else { + lastBigger = t; + t -= t * 0.5f; + } + } + vWarning << "no convergence"; + return t; +} + +void VBezier::splitAtLength(float len, VBezier *left, VBezier *right) +{ + float t; + + *right = *this; + t = right->tAtLength(len); + right->parameterSplitLeft(t, left); +} + +VPointF VBezier::derivative(float t) const +{ + // p'(t) = 3 * (-(1-2t+t^2) * p0 + (1 - 4 * t + 3 * t^2) * p1 + (2 * t - 3 * + // t^2) * p2 + t^2 * p3) + + float m_t = 1.0f - t; + + float d = t * t; + float a = -m_t * m_t; + float b = 1 - 4 * t + 3 * d; + float c = 2 * t - 3 * d; + + return 3 * VPointF(a * x1 + b * x2 + c * x3 + d * x4, + a * y1 + b * y2 + c * y3 + d * y4); +} + +float VBezier::angleAt(float t) const +{ + if (t < 0 || t > 1) { + return 0; + } + return VLine({}, derivative(t)).angle(); +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vbezier.h b/vendor/github.com/Benau/go_rlottie/vector_vbezier.h new file mode 100644 index 00000000..1210d27a --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vbezier.h @@ -0,0 +1,139 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VBEZIER_H +#define VBEZIER_H + +#include "vector_vpoint.h" + +V_BEGIN_NAMESPACE + +class VBezier { +public: + VBezier() = default; + VPointF pointAt(float t) const; + float angleAt(float t) const; + VBezier onInterval(float t0, float t1) const; + float length() const; + static void coefficients(float t, float &a, float &b, float &c, float &d); + static VBezier fromPoints(const VPointF &start, const VPointF &cp1, + const VPointF &cp2, const VPointF &end); + inline void parameterSplitLeft(float t, VBezier *left); + inline void split(VBezier *firstHalf, VBezier *secondHalf) const; + float tAtLength(float len) const { return tAtLength(len , length());} + float tAtLength(float len, float totalLength) const; + void splitAtLength(float len, VBezier *left, VBezier *right); + VPointF pt1() const { return {x1, y1}; } + VPointF pt2() const { return {x2, y2}; } + VPointF pt3() const { return {x3, y3}; } + VPointF pt4() const { return {x4, y4}; } + +private: + VPointF derivative(float t) const; + float x1, y1, x2, y2, x3, y3, x4, y4; +}; + +inline void VBezier::coefficients(float t, float &a, float &b, float &c, + float &d) +{ + float m_t = 1.0f - t; + b = m_t * m_t; + c = t * t; + d = c * t; + a = b * m_t; + b *= 3.0f * t; + c *= 3.0f * m_t; +} + +inline VPointF VBezier::pointAt(float t) const +{ + // numerically more stable: + float x, y; + + float m_t = 1.0f - t; + { + float a = x1 * m_t + x2 * t; + float b = x2 * m_t + x3 * t; + float c = x3 * m_t + x4 * t; + a = a * m_t + b * t; + b = b * m_t + c * t; + x = a * m_t + b * t; + } + { + float a = y1 * m_t + y2 * t; + float b = y2 * m_t + y3 * t; + float c = y3 * m_t + y4 * t; + a = a * m_t + b * t; + b = b * m_t + c * t; + y = a * m_t + b * t; + } + return {x, y}; +} + +inline void VBezier::parameterSplitLeft(float t, VBezier *left) +{ + left->x1 = x1; + left->y1 = y1; + + left->x2 = x1 + t * (x2 - x1); + left->y2 = y1 + t * (y2 - y1); + + left->x3 = x2 + t * (x3 - x2); // temporary holding spot + left->y3 = y2 + t * (y3 - y2); // temporary holding spot + + x3 = x3 + t * (x4 - x3); + y3 = y3 + t * (y4 - y3); + + x2 = left->x3 + t * (x3 - left->x3); + y2 = left->y3 + t * (y3 - left->y3); + + left->x3 = left->x2 + t * (left->x3 - left->x2); + left->y3 = left->y2 + t * (left->y3 - left->y2); + + left->x4 = x1 = left->x3 + t * (x2 - left->x3); + left->y4 = y1 = left->y3 + t * (y2 - left->y3); +} + +inline void VBezier::split(VBezier *firstHalf, VBezier *secondHalf) const +{ + float c = (x2 + x3) * 0.5f; + firstHalf->x2 = (x1 + x2) * 0.5f; + secondHalf->x3 = (x3 + x4) * 0.5f; + firstHalf->x1 = x1; + secondHalf->x4 = x4; + firstHalf->x3 = (firstHalf->x2 + c) * 0.5f; + secondHalf->x2 = (secondHalf->x3 + c) * 0.5f; + firstHalf->x4 = secondHalf->x1 = (firstHalf->x3 + secondHalf->x2) * 0.5f; + + c = (y2 + y3) / 2; + firstHalf->y2 = (y1 + y2) * 0.5f; + secondHalf->y3 = (y3 + y4) * 0.5f; + firstHalf->y1 = y1; + secondHalf->y4 = y4; + firstHalf->y3 = (firstHalf->y2 + c) * 0.5f; + secondHalf->y2 = (secondHalf->y3 + c) * 0.5f; + firstHalf->y4 = secondHalf->y1 = (firstHalf->y3 + secondHalf->y2) * 0.5f; +} + +V_END_NAMESPACE + +#endif // VBEZIER_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vbitmap.cpp b/vendor/github.com/Benau/go_rlottie/vector_vbitmap.cpp new file mode 100644 index 00000000..cadae578 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vbitmap.cpp @@ -0,0 +1,219 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vbitmap.h" +#include <string> +#include <memory> +#include "vector_vdrawhelper.h" +#include "vector_vglobal.h" + +V_BEGIN_NAMESPACE + +void VBitmap::Impl::reset(size_t width, size_t height, VBitmap::Format format) +{ + mRoData = nullptr; + mWidth = uint(width); + mHeight = uint(height); + mFormat = format; + + mDepth = depth(format); + mStride = ((mWidth * mDepth + 31) >> 5) + << 2; // bytes per scanline (must be multiple of 4) + mOwnData = std::make_unique<uchar[]>(mStride * mHeight); +} + +void VBitmap::Impl::reset(uchar *data, size_t width, size_t height, size_t bytesPerLine, + VBitmap::Format format) +{ + mRoData = data; + mWidth = uint(width); + mHeight = uint(height); + mStride = uint(bytesPerLine); + mFormat = format; + mDepth = depth(format); + mOwnData = nullptr; +} + +uchar VBitmap::Impl::depth(VBitmap::Format format) +{ + uchar depth = 1; + switch (format) { + case VBitmap::Format::Alpha8: + depth = 8; + break; + case VBitmap::Format::ARGB32: + case VBitmap::Format::ARGB32_Premultiplied: + depth = 32; + break; + default: + break; + } + return depth; +} + +void VBitmap::Impl::fill(uint /*pixel*/) +{ + //@TODO +} + +void VBitmap::Impl::updateLuma() +{ + if (mFormat != VBitmap::Format::ARGB32_Premultiplied) return; + auto dataPtr = data(); + for (uint col = 0; col < mHeight; col++) { + uint *pixel = (uint *)(dataPtr + mStride * col); + for (uint row = 0; row < mWidth; row++) { + int alpha = vAlpha(*pixel); + if (alpha == 0) { + pixel++; + continue; + } + + int red = vRed(*pixel); + int green = vGreen(*pixel); + int blue = vBlue(*pixel); + + if (alpha != 255) { + // un multiply + red = (red * 255) / alpha; + green = (green * 255) / alpha; + blue = (blue * 255) / alpha; + } + int luminosity = int(0.299f * red + 0.587f * green + 0.114f * blue); + *pixel = luminosity << 24; + pixel++; + } + } +} + +VBitmap::VBitmap(size_t width, size_t height, VBitmap::Format format) +{ + if (width <= 0 || height <= 0 || format == Format::Invalid) return; + + mImpl = rc_ptr<Impl>(width, height, format); +} + +VBitmap::VBitmap(uchar *data, size_t width, size_t height, size_t bytesPerLine, + VBitmap::Format format) +{ + if (!data || width <= 0 || height <= 0 || bytesPerLine <= 0 || + format == Format::Invalid) + return; + + mImpl = rc_ptr<Impl>(data, width, height, bytesPerLine, format); +} + +void VBitmap::reset(uchar *data, size_t w, size_t h, size_t bytesPerLine, + VBitmap::Format format) +{ + if (mImpl) { + mImpl->reset(data, w, h, bytesPerLine, format); + } else { + mImpl = rc_ptr<Impl>(data, w, h, bytesPerLine, format); + } +} + +void VBitmap::reset(size_t w, size_t h, VBitmap::Format format) +{ + if (mImpl) { + if (w == mImpl->width() && h == mImpl->height() && + format == mImpl->format()) { + return; + } + mImpl->reset(w, h, format); + } else { + mImpl = rc_ptr<Impl>(w, h, format); + } +} + +size_t VBitmap::stride() const +{ + return mImpl ? mImpl->stride() : 0; +} + +size_t VBitmap::width() const +{ + return mImpl ? mImpl->width() : 0; +} + +size_t VBitmap::height() const +{ + return mImpl ? mImpl->height() : 0; +} + +size_t VBitmap::depth() const +{ + return mImpl ? mImpl->mDepth : 0; +} + +uchar *VBitmap::data() +{ + return mImpl ? mImpl->data() : nullptr; +} + +uchar *VBitmap::data() const +{ + return mImpl ? mImpl->data() : nullptr; +} + +VRect VBitmap::rect() const +{ + return mImpl ? mImpl->rect() : VRect(); +} + +VSize VBitmap::size() const +{ + return mImpl ? mImpl->size() : VSize(); +} + +bool VBitmap::valid() const +{ + return mImpl; +} + +VBitmap::Format VBitmap::format() const +{ + return mImpl ? mImpl->format() : VBitmap::Format::Invalid; +} + +void VBitmap::fill(uint pixel) +{ + if (mImpl) mImpl->fill(pixel); +} + +/* + * This is special function which converts + * RGB value to Luminosity and stores it in + * the Alpha component of the pixel. + * After this conversion the bitmap data is no more + * in RGB space. but the Alpha component contains the + * Luminosity value of the pixel in HSL color space. + * NOTE: this api has its own special usecase + * make sure you know what you are doing before using + * this api. + */ +void VBitmap::updateLuma() +{ + if (mImpl) mImpl->updateLuma(); +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vbitmap.h b/vendor/github.com/Benau/go_rlottie/vector_vbitmap.h new file mode 100644 index 00000000..0236e34d --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vbitmap.h @@ -0,0 +1,94 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VBITMAP_H +#define VBITMAP_H + +#include "vector_vrect.h" +#include "vector_vsharedptr.h" + +V_BEGIN_NAMESPACE + +class VBitmap { +public: + enum class Format: uchar { + Invalid, + Alpha8, + ARGB32, + ARGB32_Premultiplied + }; + + VBitmap() = default; + VBitmap(size_t w, size_t h, VBitmap::Format format); + VBitmap(uchar *data, size_t w, size_t h, size_t bytesPerLine, VBitmap::Format format); + void reset(uchar *data, size_t w, size_t h, size_t stride, VBitmap::Format format); + void reset(size_t w, size_t h, VBitmap::Format format=Format::ARGB32_Premultiplied); + size_t stride() const; + size_t width() const; + size_t height() const; + size_t depth() const; + VBitmap::Format format() const; + bool valid() const; + uchar * data(); + uchar * data() const; + VRect rect() const; + VSize size() const; + void fill(uint pixel); + void updateLuma(); +private: + struct Impl { + std::unique_ptr<uchar[]> mOwnData{nullptr}; + uchar * mRoData{nullptr}; + uint mWidth{0}; + uint mHeight{0}; + uint mStride{0}; + uchar mDepth{0}; + VBitmap::Format mFormat{VBitmap::Format::Invalid}; + + explicit Impl(size_t width, size_t height, VBitmap::Format format) + { + reset(width, height, format); + } + explicit Impl(uchar *data, size_t w, size_t h, size_t bytesPerLine, VBitmap::Format format) + { + reset(data, w, h, bytesPerLine, format); + } + VRect rect() const { return VRect(0, 0, mWidth, mHeight);} + VSize size() const { return VSize(mWidth, mHeight); } + size_t stride() const { return mStride; } + size_t width() const { return mWidth; } + size_t height() const { return mHeight; } + uchar * data() { return mRoData ? mRoData : mOwnData.get(); } + VBitmap::Format format() const { return mFormat; } + void reset(uchar *, size_t, size_t, size_t, VBitmap::Format); + void reset(size_t, size_t, VBitmap::Format); + static uchar depth(VBitmap::Format format); + void fill(uint); + void updateLuma(); + }; + + rc_ptr<Impl> mImpl; +}; + +V_END_NAMESPACE + +#endif // VBITMAP_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vbrush.cpp b/vendor/github.com/Benau/go_rlottie/vector_vbrush.cpp new file mode 100644 index 00000000..6f1e5394 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vbrush.cpp @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vbrush.h" + +V_BEGIN_NAMESPACE + +VGradient::VGradient(VGradient::Type type) + : mType(type) +{ + if (mType == Type::Linear) + linear.x1 = linear.y1 = linear.x2 = linear.y2 = 0.0f; + else + radial.cx = radial.cy = radial.fx = + radial.fy = radial.cradius = radial.fradius = 0.0f; +} + +void VGradient::setStops(const VGradientStops &stops) +{ + mStops = stops; +} + +VBrush::VBrush(const VColor &color) : mType(VBrush::Type::Solid), mColor(color) +{ +} + +VBrush::VBrush(uchar r, uchar g, uchar b, uchar a) + : mType(VBrush::Type::Solid), mColor(r, g, b, a) + +{ +} + +VBrush::VBrush(const VGradient *gradient) +{ + if (!gradient) return; + + mGradient = gradient; + + if (gradient->mType == VGradient::Type::Linear) { + mType = VBrush::Type::LinearGradient; + } else if (gradient->mType == VGradient::Type::Radial) { + mType = VBrush::Type::RadialGradient; + } +} + +VBrush::VBrush(const VTexture *texture):mType(VBrush::Type::Texture), mTexture(texture) +{ +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vbrush.h b/vendor/github.com/Benau/go_rlottie/vector_vbrush.h new file mode 100644 index 00000000..7cede06a --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vbrush.h @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VBRUSH_H +#define VBRUSH_H + +#include <vector> +#include "vector_vglobal.h" +#include "vector_vmatrix.h" +#include "vector_vpoint.h" +#include "vector_vbitmap.h" + +V_BEGIN_NAMESPACE + +using VGradientStop = std::pair<float, VColor>; +using VGradientStops = std::vector<VGradientStop>; +class VGradient { +public: + enum class Mode { Absolute, Relative }; + enum class Spread { Pad, Repeat, Reflect }; + enum class Type { Linear, Radial }; + explicit VGradient(VGradient::Type type); + void setStops(const VGradientStops &stops); + void setAlpha(float alpha) {mAlpha = alpha;} + float alpha() const {return mAlpha;} + +public: + static constexpr int colorTableSize = 1024; + VGradient::Type mType{Type::Linear}; + VGradient::Spread mSpread{Spread::Pad}; + VGradient::Mode mMode{Mode::Absolute}; + VGradientStops mStops; + float mAlpha{1.0}; + struct Linear{ + float x1{0}, y1{0}, x2{0}, y2{0}; + }; + struct Radial{ + float cx{0}, cy{0}, fx{0}, fy{0}, cradius{0}, fradius{0}; + }; + union { + Linear linear; + Radial radial; + }; + VMatrix mMatrix; +}; + +struct VTexture { + VBitmap mBitmap; + VMatrix mMatrix; + int mAlpha{255}; +}; + +class VBrush { +public: + enum class Type { NoBrush, Solid, LinearGradient, RadialGradient, Texture }; + VBrush():mType(Type::NoBrush),mColor(){}; + explicit VBrush(const VColor &color); + explicit VBrush(const VGradient *gradient); + explicit VBrush(uchar r, uchar g, uchar b, uchar a); + explicit VBrush(const VTexture *texture); + inline VBrush::Type type() const { return mType; } +public: + VBrush::Type mType{Type::NoBrush}; + union { + VColor mColor{}; + const VGradient *mGradient; + const VTexture *mTexture; + }; +}; + +V_END_NAMESPACE + +#endif // VBRUSH_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vcowptr.h b/vendor/github.com/Benau/go_rlottie/vector_vcowptr.h new file mode 100644 index 00000000..af2c7f24 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vcowptr.h @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VCOWPTR_H +#define VCOWPTR_H + +#include <cassert> +#include <atomic> + +template <typename T> +class vcow_ptr { + struct model { + std::atomic<std::size_t> mRef{1}; + + model() = default; + + template <class... Args> + explicit model(Args&&... args) : mValue(std::forward<Args>(args)...){} + explicit model(const T& other) : mValue(other){} + + T mValue; + }; + model* mModel; + +public: + using element_type = T; + + vcow_ptr() + { + static model default_s; + mModel = &default_s; + ++mModel->mRef; + } + + ~vcow_ptr() + { + if (mModel && (--mModel->mRef == 0)) delete mModel; + } + + template <class... Args> + explicit vcow_ptr(Args&&... args) : mModel(new model(std::forward<Args>(args)...)) + { + } + + vcow_ptr(const vcow_ptr& x) noexcept : mModel(x.mModel) + { + assert(mModel); + ++mModel->mRef; + } + vcow_ptr(vcow_ptr&& x) noexcept : mModel(x.mModel) + { + assert(mModel); + x.mModel = nullptr; + } + + auto operator=(const vcow_ptr& x) noexcept -> vcow_ptr& + { + *this = vcow_ptr(x); + return *this; + } + + auto operator=(vcow_ptr&& x) noexcept -> vcow_ptr& + { + auto tmp = std::move(x); + swap(*this, tmp); + return *this; + } + + auto operator*() const noexcept -> const element_type& { return read(); } + + auto operator-> () const noexcept -> const element_type* { return &read(); } + + std::size_t refCount() const noexcept + { + assert(mModel); + + return mModel->mRef; + } + + bool unique() const noexcept + { + assert(mModel); + + return mModel->mRef == 1; + } + + auto write() -> element_type& + { + if (!unique()) *this = vcow_ptr(read()); + + return mModel->mValue; + } + + auto read() const noexcept -> const element_type& + { + assert(mModel); + + return mModel->mValue; + } + + friend inline void swap(vcow_ptr& x, vcow_ptr& y) noexcept + { + std::swap(x.mModel, y.mModel); + } +}; + +#endif // VCOWPTR_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdasher.cpp b/vendor/github.com/Benau/go_rlottie/vector_vdasher.cpp new file mode 100644 index 00000000..b2bc9d1d --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdasher.cpp @@ -0,0 +1,254 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "vector_vbezier.h" + +#include <cmath> + +#include "vector_vdasher.h" +#include "vector_vline.h" + +V_BEGIN_NAMESPACE + +static constexpr float tolerance = 0.1f; +VDasher::VDasher(const float *dashArray, size_t size) +{ + mDashArray = reinterpret_cast<const VDasher::Dash *>(dashArray); + mArraySize = size / 2; + if (size % 2) mDashOffset = dashArray[size - 1]; + mIndex = 0; + mCurrentLength = 0; + mDiscard = false; + //if the dash array contains ZERO length + // segments or ZERO lengths gaps we could + // optimize those usecase. + for (size_t i = 0; i < mArraySize; i++) { + if (!vCompare(mDashArray[i].length, 0.0f)) + mNoLength = false; + if (!vCompare(mDashArray[i].gap, 0.0f)) + mNoGap = false; + } +} + +void VDasher::moveTo(const VPointF &p) +{ + mDiscard = false; + mStartNewSegment = true; + mCurPt = p; + mIndex = 0; + + if (!vCompare(mDashOffset, 0.0f)) { + float totalLength = 0.0; + for (size_t i = 0; i < mArraySize; i++) { + totalLength = mDashArray[i].length + mDashArray[i].gap; + } + float normalizeLen = std::fmod(mDashOffset, totalLength); + if (normalizeLen < 0.0f) { + normalizeLen = totalLength + normalizeLen; + } + // now the length is less than total length and +ve + // findout the current dash index , dashlength and gap. + for (size_t i = 0; i < mArraySize; i++) { + if (normalizeLen < mDashArray[i].length) { + mIndex = i; + mCurrentLength = mDashArray[i].length - normalizeLen; + mDiscard = false; + break; + } + normalizeLen -= mDashArray[i].length; + if (normalizeLen < mDashArray[i].gap) { + mIndex = i; + mCurrentLength = mDashArray[i].gap - normalizeLen; + mDiscard = true; + break; + } + normalizeLen -= mDashArray[i].gap; + } + } else { + mCurrentLength = mDashArray[mIndex].length; + } + if (vIsZero(mCurrentLength)) updateActiveSegment(); +} + +void VDasher::addLine(const VPointF &p) +{ + if (mDiscard) return; + + if (mStartNewSegment) { + mResult->moveTo(mCurPt); + mStartNewSegment = false; + } + mResult->lineTo(p); +} + +void VDasher::updateActiveSegment() +{ + mStartNewSegment = true; + + if (mDiscard) { + mDiscard = false; + mIndex = (mIndex + 1) % mArraySize; + mCurrentLength = mDashArray[mIndex].length; + } else { + mDiscard = true; + mCurrentLength = mDashArray[mIndex].gap; + } + if (vIsZero(mCurrentLength)) updateActiveSegment(); +} + +void VDasher::lineTo(const VPointF &p) +{ + VLine left, right; + VLine line(mCurPt, p); + float length = line.length(); + + if (length <= mCurrentLength) { + mCurrentLength -= length; + addLine(p); + } else { + while (length > mCurrentLength) { + length -= mCurrentLength; + line.splitAtLength(mCurrentLength, left, right); + + addLine(left.p2()); + updateActiveSegment(); + + line = right; + mCurPt = line.p1(); + } + // handle remainder + if (length > tolerance) { + mCurrentLength -= length; + addLine(line.p2()); + } + } + + if (mCurrentLength < tolerance) updateActiveSegment(); + + mCurPt = p; +} + +void VDasher::addCubic(const VPointF &cp1, const VPointF &cp2, const VPointF &e) +{ + if (mDiscard) return; + + if (mStartNewSegment) { + mResult->moveTo(mCurPt); + mStartNewSegment = false; + } + mResult->cubicTo(cp1, cp2, e); +} + +void VDasher::cubicTo(const VPointF &cp1, const VPointF &cp2, const VPointF &e) +{ + VBezier left, right; + VBezier b = VBezier::fromPoints(mCurPt, cp1, cp2, e); + float bezLen = b.length(); + + if (bezLen <= mCurrentLength) { + mCurrentLength -= bezLen; + addCubic(cp1, cp2, e); + } else { + while (bezLen > mCurrentLength) { + bezLen -= mCurrentLength; + b.splitAtLength(mCurrentLength, &left, &right); + + addCubic(left.pt2(), left.pt3(), left.pt4()); + updateActiveSegment(); + + b = right; + mCurPt = b.pt1(); + } + // handle remainder + if (bezLen > tolerance) { + mCurrentLength -= bezLen; + addCubic(b.pt2(), b.pt3(), b.pt4()); + } + } + + if (mCurrentLength < tolerance) updateActiveSegment(); + + mCurPt = e; +} + +void VDasher::dashHelper(const VPath &path, VPath &result) +{ + mResult = &result; + mResult->reserve(path.points().size(), path.elements().size()); + mIndex = 0; + const std::vector<VPath::Element> &elms = path.elements(); + const std::vector<VPointF> & pts = path.points(); + const VPointF * ptPtr = pts.data(); + + for (auto &i : elms) { + switch (i) { + case VPath::Element::MoveTo: { + moveTo(*ptPtr++); + break; + } + case VPath::Element::LineTo: { + lineTo(*ptPtr++); + break; + } + case VPath::Element::CubicTo: { + cubicTo(*ptPtr, *(ptPtr + 1), *(ptPtr + 2)); + ptPtr += 3; + break; + } + case VPath::Element::Close: { + // The point is already joined to start point in VPath + // no need to do anything here. + break; + } + } + } + mResult = nullptr; +} + +void VDasher::dashed(const VPath &path, VPath &result) +{ + if (mNoLength && mNoGap) return result.reset(); + + if (path.empty() || mNoLength) return result.reset(); + + if (mNoGap) return result.clone(path); + + result.reset(); + + dashHelper(path, result); +} + +VPath VDasher::dashed(const VPath &path) +{ + if (mNoLength && mNoGap) return path; + + if (path.empty() || mNoLength) return VPath(); + + if (mNoGap) return path; + + VPath result; + + dashHelper(path, result); + + return result; +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdasher.h b/vendor/github.com/Benau/go_rlottie/vector_vdasher.h new file mode 100644 index 00000000..aa4bcb5e --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdasher.h @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VDASHER_H +#define VDASHER_H +#include "vector_vpath.h" + +V_BEGIN_NAMESPACE + +class VDasher { +public: + VDasher(const float *dashArray, size_t size); + VPath dashed(const VPath &path); + void dashed(const VPath &path, VPath &result); + +private: + void moveTo(const VPointF &p); + void lineTo(const VPointF &p); + void cubicTo(const VPointF &cp1, const VPointF &cp2, const VPointF &e); + void close(); + void addLine(const VPointF &p); + void addCubic(const VPointF &cp1, const VPointF &cp2, const VPointF &e); + void updateActiveSegment(); + +private: + void dashHelper(const VPath &path, VPath &result); + struct Dash { + float length; + float gap; + }; + const VDasher::Dash *mDashArray; + size_t mArraySize{0}; + VPointF mCurPt; + size_t mIndex{0}; /* index to the dash Array */ + float mCurrentLength; + float mDashOffset{0}; + VPath *mResult{nullptr}; + bool mDiscard{false}; + bool mStartNewSegment{true}; + bool mNoLength{true}; + bool mNoGap{true}; +}; + +V_END_NAMESPACE + +#endif // VDASHER_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdebug.cpp b/vendor/github.com/Benau/go_rlottie/vector_vdebug.cpp new file mode 100644 index 00000000..dc11f233 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdebug.cpp @@ -0,0 +1,758 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vdebug.h" + +#ifdef LOTTIE_LOGGING_SUPPORT + +#include <atomic> +#include <chrono> +#include <cstring> +#include <ctime> +#include <fstream> +#include <memory> +#include <queue> +#include <sstream> +#include <thread> +#include <tuple> + +namespace { + +/* Returns microseconds since epoch */ +uint64_t timestamp_now() +{ + return std::chrono::duration_cast<std::chrono::microseconds>( + std::chrono::high_resolution_clock::now().time_since_epoch()) + .count(); +} + +/* I want [2016-10-13 00:01:23.528514] */ +void format_timestamp(std::ostream& os, uint64_t timestamp) +{ + // The next 3 lines do not work on MSVC! + // auto duration = std::chrono::microseconds(timestamp); + // std::chrono::high_resolution_clock::time_point time_point(duration); + // std::time_t time_t = + // std::chrono::high_resolution_clock::to_time_t(time_point); + std::time_t time_t = timestamp / 1000000; + auto gmtime = std::gmtime(&time_t); + char buffer[32]; + strftime(buffer, 32, "%Y-%m-%d %T.", gmtime); + char microseconds[7]; + snprintf(microseconds, 7, "%06llu", + (long long unsigned int)timestamp % 1000000); + os << '[' << buffer << microseconds << ']'; +} + +std::thread::id this_thread_id() +{ + static thread_local const std::thread::id id = std::this_thread::get_id(); + return id; +} + +template <typename T, typename Tuple> +struct TupleIndex; + +template <typename T, typename... Types> +struct TupleIndex<T, std::tuple<T, Types...> > { + static constexpr const std::size_t value = 0; +}; + +template <typename T, typename U, typename... Types> +struct TupleIndex<T, std::tuple<U, Types...> > { + static constexpr const std::size_t value = + 1 + TupleIndex<T, std::tuple<Types...> >::value; +}; + +} // anonymous namespace + +typedef std::tuple<char, uint32_t, uint64_t, int32_t, int64_t, double, + VDebug::string_literal_t, char*> + SupportedTypes; + +char const* to_string(LogLevel loglevel) +{ + switch (loglevel) { + case LogLevel::OFF: + return "OFF"; + case LogLevel::INFO: + return "INFO"; + case LogLevel::WARN: + return "WARN"; + case LogLevel::CRIT: + return "CRIT"; + } + return "XXXX"; +} + +template <typename Arg> +void VDebug::encode(Arg arg) +{ + *reinterpret_cast<Arg*>(buffer()) = arg; + m_bytes_used += sizeof(Arg); +} + +template <typename Arg> +void VDebug::encode(Arg arg, uint8_t type_id) +{ + resize_buffer_if_needed(sizeof(Arg) + sizeof(uint8_t)); + encode<uint8_t>(type_id); + encode<Arg>(arg); +} + +VDebug::VDebug(LogLevel level, char const* file, char const* function, + uint32_t line) + : m_bytes_used(0), m_buffer_size(sizeof(m_stack_buffer)) +{ + encode<uint64_t>(timestamp_now()); + encode<std::thread::id>(this_thread_id()); + encode<string_literal_t>(string_literal_t(file)); + encode<string_literal_t>(string_literal_t(function)); + encode<uint32_t>(line); + encode<LogLevel>(level); + if (level == LogLevel::INFO) { + m_logAll = false; + } else { + m_logAll = true; + } +} + +VDebug::~VDebug() = default; + +void VDebug::stringify(std::ostream& os) +{ + char* b = !m_heap_buffer ? m_stack_buffer : m_heap_buffer.get(); + char const* const end = b + m_bytes_used; + uint64_t timestamp = *reinterpret_cast<uint64_t*>(b); + b += sizeof(uint64_t); + std::thread::id threadid = *reinterpret_cast<std::thread::id*>(b); + b += sizeof(std::thread::id); + string_literal_t file = *reinterpret_cast<string_literal_t*>(b); + b += sizeof(string_literal_t); + string_literal_t function = *reinterpret_cast<string_literal_t*>(b); + b += sizeof(string_literal_t); + uint32_t line = *reinterpret_cast<uint32_t*>(b); + b += sizeof(uint32_t); + LogLevel loglevel = *reinterpret_cast<LogLevel*>(b); + b += sizeof(LogLevel); + if (m_logAll) { + format_timestamp(os, timestamp); + + os << '[' << to_string(loglevel) << ']' << '[' << threadid << ']' << '[' + << file.m_s << ':' << function.m_s << ':' << line << "] "; + } + + stringify(os, b, end); + os << std::endl; + + if (loglevel >= LogLevel::CRIT) os.flush(); +} + +template <typename Arg> +char* decode(std::ostream& os, char* b, Arg* /*dummy*/) +{ + Arg arg = *reinterpret_cast<Arg*>(b); + os << arg; + return b + sizeof(Arg); +} + +template <> +char* decode(std::ostream& os, char* b, VDebug::string_literal_t* /*dummy*/) +{ + VDebug::string_literal_t s = + *reinterpret_cast<VDebug::string_literal_t*>(b); + os << s.m_s; + return b + sizeof(VDebug::string_literal_t); +} + +template <> +char* decode(std::ostream& os, char* b, char** /*dummy*/) +{ + while (*b != '\0') { + os << *b; + ++b; + } + return ++b; +} + +void VDebug::stringify(std::ostream& os, char* start, char const* const end) +{ + if (start == end) return; + + int type_id = static_cast<int>(*start); + start++; + + switch (type_id) { + case 0: + stringify( + os, + decode(os, start, + static_cast<std::tuple_element<0, SupportedTypes>::type*>( + nullptr)), + end); + return; + case 1: + stringify( + os, + decode(os, start, + static_cast<std::tuple_element<1, SupportedTypes>::type*>( + nullptr)), + end); + return; + case 2: + stringify( + os, + decode(os, start, + static_cast<std::tuple_element<2, SupportedTypes>::type*>( + nullptr)), + end); + return; + case 3: + stringify( + os, + decode(os, start, + static_cast<std::tuple_element<3, SupportedTypes>::type*>( + nullptr)), + end); + return; + case 4: + stringify( + os, + decode(os, start, + static_cast<std::tuple_element<4, SupportedTypes>::type*>( + nullptr)), + end); + return; + case 5: + stringify( + os, + decode(os, start, + static_cast<std::tuple_element<5, SupportedTypes>::type*>( + nullptr)), + end); + return; + case 6: + stringify( + os, + decode(os, start, + static_cast<std::tuple_element<6, SupportedTypes>::type*>( + nullptr)), + end); + return; + case 7: + stringify( + os, + decode(os, start, + static_cast<std::tuple_element<7, SupportedTypes>::type*>( + nullptr)), + end); + return; + } +} + +char* VDebug::buffer() +{ + return !m_heap_buffer ? &m_stack_buffer[m_bytes_used] + : &(m_heap_buffer.get())[m_bytes_used]; +} + +void VDebug::resize_buffer_if_needed(size_t additional_bytes) +{ + size_t const required_size = m_bytes_used + additional_bytes; + + if (required_size <= m_buffer_size) return; + + if (!m_heap_buffer) { + m_buffer_size = std::max(static_cast<size_t>(512), required_size); + m_heap_buffer = std::make_unique<char[]>(m_buffer_size); + memcpy(m_heap_buffer.get(), m_stack_buffer, m_bytes_used); + return; + } else { + m_buffer_size = + std::max(static_cast<size_t>(2 * m_buffer_size), required_size); + std::unique_ptr<char[]> new_heap_buffer(new char[m_buffer_size]); + memcpy(new_heap_buffer.get(), m_heap_buffer.get(), m_bytes_used); + m_heap_buffer.swap(new_heap_buffer); + } +} + +void VDebug::encode(char const* arg) +{ + if (arg != nullptr) encode_c_string(arg, strlen(arg)); +} + +void VDebug::encode(char* arg) +{ + if (arg != nullptr) encode_c_string(arg, strlen(arg)); +} + +void VDebug::encode_c_string(char const* arg, size_t length) +{ + if (length == 0) return; + + resize_buffer_if_needed(1 + length + 1); + char* b = buffer(); + auto type_id = TupleIndex<char*, SupportedTypes>::value; + *reinterpret_cast<uint8_t*>(b++) = static_cast<uint8_t>(type_id); + memcpy(b, arg, length + 1); + m_bytes_used += 1 + length + 1; +} + +void VDebug::encode(string_literal_t arg) +{ + encode<string_literal_t>( + arg, TupleIndex<string_literal_t, SupportedTypes>::value); +} + +VDebug& VDebug::operator<<(std::string const& arg) +{ + encode_c_string(arg.c_str(), arg.length()); + return *this; +} + +VDebug& VDebug::operator<<(int32_t arg) +{ + encode<int32_t>(arg, TupleIndex<int32_t, SupportedTypes>::value); + return *this; +} + +VDebug& VDebug::operator<<(uint32_t arg) +{ + encode<uint32_t>(arg, TupleIndex<uint32_t, SupportedTypes>::value); + return *this; +} + +// VDebug& VDebug::operator<<(int64_t arg) +// { +// encode < int64_t >(arg, TupleIndex < int64_t, SupportedTypes >::value); +// return *this; +// } + +// VDebug& VDebug::operator<<(uint64_t arg) +// { +// encode < uint64_t >(arg, TupleIndex < uint64_t, SupportedTypes >::value); +// return *this; +// } +VDebug& VDebug::operator<<(unsigned long arg) +{ + encode<uint64_t>(arg, TupleIndex<uint64_t, SupportedTypes>::value); + return *this; +} + +VDebug& VDebug::operator<<(long arg) +{ + encode<int64_t>(arg, TupleIndex<int64_t, SupportedTypes>::value); + return *this; +} + +VDebug& VDebug::operator<<(double arg) +{ + encode<double>(arg, TupleIndex<double, SupportedTypes>::value); + return *this; +} + +VDebug& VDebug::operator<<(char arg) +{ + encode<char>(arg, TupleIndex<char, SupportedTypes>::value); + return *this; +} + +struct BufferBase { + virtual ~BufferBase() = default; + virtual void push(VDebug&& logline) = 0; + virtual bool try_pop(VDebug& logline) = 0; +}; + +struct SpinLock { + SpinLock(std::atomic_flag& flag) : m_flag(flag) + { + while (m_flag.test_and_set(std::memory_order_acquire)) + ; + } + + ~SpinLock() { m_flag.clear(std::memory_order_release); } + +private: + std::atomic_flag& m_flag; +}; + +/* Multi Producer Single Consumer Ring Buffer */ +class RingBuffer : public BufferBase { +public: + struct alignas(64) Item { + Item() + : flag(), written(0), logline(LogLevel::INFO, nullptr, nullptr, 0) + { + } + + std::atomic_flag flag; + char written; + char padding[256 - sizeof(std::atomic_flag) - sizeof(char) - + sizeof(VDebug)]; + VDebug logline; + }; + + RingBuffer(size_t const size) + : m_size(size), + m_ring(static_cast<Item*>(std::malloc(size * sizeof(Item)))), + m_write_index(0), + m_read_index(0) + { + for (size_t i = 0; i < m_size; ++i) { + new (&m_ring[i]) Item(); + } + static_assert(sizeof(Item) == 256, "Unexpected size != 256"); + } + + ~RingBuffer() override + { + for (size_t i = 0; i < m_size; ++i) { + m_ring[i].~Item(); + } + std::free(m_ring); + } + + void push(VDebug&& logline) override + { + unsigned int write_index = + m_write_index.fetch_add(1, std::memory_order_relaxed) % m_size; + Item& item = m_ring[write_index]; + SpinLock spinlock(item.flag); + item.logline = std::move(logline); + item.written = 1; + } + + bool try_pop(VDebug& logline) override + { + Item& item = m_ring[m_read_index % m_size]; + SpinLock spinlock(item.flag); + if (item.written == 1) { + logline = std::move(item.logline); + item.written = 0; + ++m_read_index; + return true; + } + return false; + } + + RingBuffer(RingBuffer const&) = delete; + RingBuffer& operator=(RingBuffer const&) = delete; + +private: + size_t const m_size; + Item* m_ring; + std::atomic<unsigned int> m_write_index; + +public: + char pad[64]; + +private: + unsigned int m_read_index; +}; + +class Buffer { +public: + struct Item { + Item(VDebug&& logline) : logline(std::move(logline)) {} + char padding[256 - sizeof(VDebug)]; + VDebug logline; + }; + + static constexpr const size_t size = + 32768; // 8MB. Helps reduce memory fragmentation + + Buffer() : m_buffer(static_cast<Item*>(std::malloc(size * sizeof(Item)))) + { + for (size_t i = 0; i <= size; ++i) { + m_write_state[i].store(0, std::memory_order_relaxed); + } + static_assert(sizeof(Item) == 256, "Unexpected size != 256"); + } + + ~Buffer() + { + unsigned int write_count = m_write_state[size].load(); + for (size_t i = 0; i < write_count; ++i) { + m_buffer[i].~Item(); + } + std::free(m_buffer); + } + + // Returns true if we need to switch to next buffer + bool push(VDebug&& logline, unsigned int const write_index) + { + new (&m_buffer[write_index]) Item(std::move(logline)); + m_write_state[write_index].store(1, std::memory_order_release); + return m_write_state[size].fetch_add(1, std::memory_order_acquire) + + 1 == + size; + } + + bool try_pop(VDebug& logline, unsigned int const read_index) + { + if (m_write_state[read_index].load(std::memory_order_acquire)) { + Item& item = m_buffer[read_index]; + logline = std::move(item.logline); + return true; + } + return false; + } + + Buffer(Buffer const&) = delete; + Buffer& operator=(Buffer const&) = delete; + +private: + Item* m_buffer; + std::atomic<unsigned int> m_write_state[size + 1]; +}; + +class QueueBuffer : public BufferBase { +public: + QueueBuffer(QueueBuffer const&) = delete; + QueueBuffer& operator=(QueueBuffer const&) = delete; + + QueueBuffer() + : m_current_read_buffer{nullptr}, + m_write_index(0), + m_flag(), + m_read_index(0) + { + setup_next_write_buffer(); + } + + void push(VDebug&& logline) override + { + unsigned int write_index = + m_write_index.fetch_add(1, std::memory_order_relaxed); + if (write_index < Buffer::size) { + if (m_current_write_buffer.load(std::memory_order_acquire) + ->push(std::move(logline), write_index)) { + setup_next_write_buffer(); + } + } else { + while (m_write_index.load(std::memory_order_acquire) >= + Buffer::size) + ; + push(std::move(logline)); + } + } + + bool try_pop(VDebug& logline) override + { + if (m_current_read_buffer == nullptr) + m_current_read_buffer = get_next_read_buffer(); + + Buffer* read_buffer = m_current_read_buffer; + + if (read_buffer == nullptr) return false; + + if (read_buffer->try_pop(logline, m_read_index)) { + m_read_index++; + if (m_read_index == Buffer::size) { + m_read_index = 0; + m_current_read_buffer = nullptr; + SpinLock spinlock(m_flag); + m_buffers.pop(); + } + return true; + } + + return false; + } + +private: + void setup_next_write_buffer() + { + std::unique_ptr<Buffer> next_write_buffer(new Buffer()); + m_current_write_buffer.store(next_write_buffer.get(), + std::memory_order_release); + SpinLock spinlock(m_flag); + m_buffers.push(std::move(next_write_buffer)); + m_write_index.store(0, std::memory_order_relaxed); + } + + Buffer* get_next_read_buffer() + { + SpinLock spinlock(m_flag); + return m_buffers.empty() ? nullptr : m_buffers.front().get(); + } + +private: + std::queue<std::unique_ptr<Buffer> > m_buffers; + std::atomic<Buffer*> m_current_write_buffer; + Buffer* m_current_read_buffer; + std::atomic<unsigned int> m_write_index; + std::atomic_flag m_flag; + unsigned int m_read_index; +}; + +class FileWriter { +public: + FileWriter(std::string const& log_directory, + std::string const& log_file_name, uint32_t log_file_roll_size_mb) + : m_log_file_roll_size_bytes(log_file_roll_size_mb * 1024 * 1024), + m_name(log_directory + log_file_name) + { + roll_file(); + } + + void write(VDebug& logline) + { + auto pos = m_os->tellp(); + logline.stringify(*m_os); + m_bytes_written += m_os->tellp() - pos; + if (m_bytes_written > m_log_file_roll_size_bytes) { + roll_file(); + } + } + +private: + void roll_file() + { + if (m_os) { + m_os->flush(); + m_os->close(); + } + + m_bytes_written = 0; + m_os = std::make_unique<std::ofstream>(); + // TODO Optimize this part. Does it even matter ? + std::string log_file_name = m_name; + log_file_name.append("."); + log_file_name.append(std::to_string(++m_file_number)); + log_file_name.append(".txt"); + m_os->open(log_file_name, std::ofstream::out | std::ofstream::trunc); + } + +private: + uint32_t m_file_number = 0; + std::streamoff m_bytes_written = 0; + uint32_t const m_log_file_roll_size_bytes; + std::string const m_name; + std::unique_ptr<std::ofstream> m_os; +}; + +class NanoLogger { +public: + NanoLogger(NonGuaranteedLogger ngl, std::string const& log_directory, + std::string const& log_file_name, uint32_t log_file_roll_size_mb) + : m_state(State::INIT), + m_buffer_base( + new RingBuffer(std::max(1u, ngl.ring_buffer_size_mb) * 1024 * 4)), + m_file_writer(log_directory, log_file_name, + std::max(1u, log_file_roll_size_mb)), + m_thread(&NanoLogger::pop, this) + { + m_state.store(State::READY, std::memory_order_release); + } + + NanoLogger(GuaranteedLogger /*gl*/, std::string const& log_directory, + std::string const& log_file_name, uint32_t log_file_roll_size_mb) + : m_state(State::INIT), + m_buffer_base(new QueueBuffer()), + m_file_writer(log_directory, log_file_name, + std::max(1u, log_file_roll_size_mb)), + m_thread(&NanoLogger::pop, this) + { + m_state.store(State::READY, std::memory_order_release); + } + + ~NanoLogger() + { + m_state.store(State::SHUTDOWN); + m_thread.join(); + } + + void add(VDebug&& logline) { m_buffer_base->push(std::move(logline)); } + + void pop() + { + // Wait for constructor to complete and pull all stores done there to + // this thread / core. + while (m_state.load(std::memory_order_acquire) == State::INIT) + std::this_thread::sleep_for(std::chrono::microseconds(50)); + + VDebug logline(LogLevel::INFO, nullptr, nullptr, 0); + + while (m_state.load() == State::READY) { + if (m_buffer_base->try_pop(logline)) + m_file_writer.write(logline); + else + std::this_thread::sleep_for(std::chrono::microseconds(50)); + } + + // Pop and log all remaining entries + while (m_buffer_base->try_pop(logline)) { + m_file_writer.write(logline); + } + } + +private: + enum class State { INIT, READY, SHUTDOWN }; + + std::atomic<State> m_state; + std::unique_ptr<BufferBase> m_buffer_base; + FileWriter m_file_writer; + std::thread m_thread; +}; + +std::unique_ptr<NanoLogger> nanologger; +std::atomic<NanoLogger*> atomic_nanologger; + +bool VDebugServer::operator==(VDebug& logline) +{ + atomic_nanologger.load(std::memory_order_acquire)->add(std::move(logline)); + return true; +} + +void initialize(NonGuaranteedLogger ngl, std::string const& log_directory, + std::string const& log_file_name, + uint32_t log_file_roll_size_mb) +{ + nanologger = std::make_unique<NanoLogger>(ngl, log_directory, log_file_name, + log_file_roll_size_mb); + atomic_nanologger.store(nanologger.get(), std::memory_order_seq_cst); +} + +void initialize(GuaranteedLogger gl, std::string const& log_directory, + std::string const& log_file_name, + uint32_t log_file_roll_size_mb) +{ + nanologger = std::make_unique<NanoLogger>(gl, log_directory, log_file_name, + log_file_roll_size_mb); + atomic_nanologger.store(nanologger.get(), std::memory_order_seq_cst); +} + +std::atomic<unsigned int> loglevel = {0}; + +void set_log_level(LogLevel level) +{ + loglevel.store(static_cast<unsigned int>(level), std::memory_order_release); +} + +bool is_logged(LogLevel level) +{ + return static_cast<unsigned int>(level) >= + loglevel.load(std::memory_order_relaxed); +} + +#endif // LOTTIE_LOGGING_SUPPORT diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdebug.h b/vendor/github.com/Benau/go_rlottie/vector_vdebug.h new file mode 100644 index 00000000..5b6bef5b --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdebug.h @@ -0,0 +1,187 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VDEBUG_H +#define VDEBUG_H + +#include "config.h" + +#ifdef LOTTIE_LOGGING_SUPPORT + +#include <cstdint> +#include <iosfwd> +#include <memory> +#include <string> +#include <type_traits> + +enum class LogLevel : uint8_t { INFO, WARN, CRIT, OFF }; + +class VDebug { +public: + VDebug(); + VDebug& debug() { return *this; } + VDebug(LogLevel level, char const* file, char const* function, + uint32_t line); + ~VDebug(); + + VDebug(VDebug&&) = default; + VDebug& operator=(VDebug&&) = default; + + void stringify(std::ostream& os); + + VDebug& operator<<(char arg); + VDebug& operator<<(int32_t arg); + VDebug& operator<<(uint32_t arg); + // VDebug& operator<<(int64_t arg); + // VDebug& operator<<(uint64_t arg); + + VDebug& operator<<(long arg); + VDebug& operator<<(unsigned long arg); + VDebug& operator<<(double arg); + VDebug& operator<<(std::string const& arg); + + template <size_t N> + VDebug& operator<<(const char (&arg)[N]) + { + encode(string_literal_t(arg)); + return *this; + } + + template <typename Arg> + typename std::enable_if<std::is_same<Arg, char const*>::value, + VDebug&>::type + operator<<(Arg const& arg) + { + encode(arg); + return *this; + } + + template <typename Arg> + typename std::enable_if<std::is_same<Arg, char*>::value, VDebug&>::type + operator<<(Arg const& arg) + { + encode(arg); + return *this; + } + + struct string_literal_t { + explicit string_literal_t(char const* s) : m_s(s) {} + char const* m_s; + }; + +private: + char* buffer(); + + template <typename Arg> + void encode(Arg arg); + + template <typename Arg> + void encode(Arg arg, uint8_t type_id); + + void encode(char* arg); + void encode(char const* arg); + void encode(string_literal_t arg); + void encode_c_string(char const* arg, size_t length); + void resize_buffer_if_needed(size_t additional_bytes); + void stringify(std::ostream& os, char* start, char const* const end); + +private: + size_t m_bytes_used{0}; + size_t m_buffer_size{0}; + std::unique_ptr<char[]> m_heap_buffer; + bool m_logAll; + char m_stack_buffer[256 - sizeof(bool) - 2 * sizeof(size_t) - + sizeof(decltype(m_heap_buffer)) - 8 /* Reserved */]; +}; + +struct VDebugServer { + /* + * Ideally this should have been operator+= + * Could not get that to compile, so here we are... + */ + bool operator==(VDebug&); +}; + +void set_log_level(LogLevel level); + +bool is_logged(LogLevel level); + +/* + * Non guaranteed logging. Uses a ring buffer to hold log lines. + * When the ring gets full, the previous log line in the slot will be dropped. + * Does not block producer even if the ring buffer is full. + * ring_buffer_size_mb - LogLines are pushed into a mpsc ring buffer whose size + * is determined by this parameter. Since each LogLine is 256 bytes, + * ring_buffer_size = ring_buffer_size_mb * 1024 * 1024 / 256 + */ +struct NonGuaranteedLogger { + NonGuaranteedLogger(uint32_t ring_buffer_size_mb_) + : ring_buffer_size_mb(ring_buffer_size_mb_) + { + } + uint32_t ring_buffer_size_mb; +}; + +/* + * Provides a guarantee log lines will not be dropped. + */ +struct GuaranteedLogger { +}; + +/* + * Ensure initialize() is called prior to any log statements. + * log_directory - where to create the logs. For example - "/tmp/" + * log_file_name - root of the file name. For example - "nanolog" + * This will create log files of the form - + * /tmp/nanolog.1.txt + * /tmp/nanolog.2.txt + * etc. + * log_file_roll_size_mb - mega bytes after which we roll to next log file. + */ +void initialize(GuaranteedLogger gl, std::string const& log_directory, + std::string const& log_file_name, + uint32_t log_file_roll_size_mb); +void initialize(NonGuaranteedLogger ngl, std::string const& log_directory, + std::string const& log_file_name, + uint32_t log_file_roll_size_mb); + +#define VDEBUG_LOG(LEVEL) \ + VDebugServer() == VDebug(LEVEL, __FILE__, __func__, __LINE__).debug() +#define vDebug is_logged(LogLevel::INFO) && VDEBUG_LOG(LogLevel::INFO) +#define vWarning is_logged(LogLevel::WARN) && VDEBUG_LOG(LogLevel::WARN) +#define vCritical is_logged(LogLevel::CRIT) && VDEBUG_LOG(LogLevel::CRIT) + +#else + +struct VDebug +{ + template<typename Args> + VDebug& operator<<(const Args &){return *this;} +}; + +#define vDebug VDebug() +#define vWarning VDebug() +#define vCritical VDebug() + +#endif //LOTTIE_LOGGING_SUPPORT + +#endif // VDEBUG_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdrawable.cpp b/vendor/github.com/Benau/go_rlottie/vector_vdrawable.cpp new file mode 100644 index 00000000..a7a477f8 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdrawable.cpp @@ -0,0 +1,130 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vdrawable.h" +#include "vector_vdasher.h" +#include "vector_vraster.h" + +VDrawable::VDrawable(VDrawable::Type type) +{ + setType(type); +} + +VDrawable::~VDrawable() noexcept +{ + if (mStrokeInfo) { + if (mType == Type::StrokeWithDash) { + delete static_cast<StrokeWithDashInfo *>(mStrokeInfo); + } else { + delete mStrokeInfo; + } + } +} + +void VDrawable::setType(VDrawable::Type type) +{ + mType = type; + if (mType == VDrawable::Type::Stroke) { + mStrokeInfo = new StrokeInfo(); + } else if (mType == VDrawable::Type::StrokeWithDash) { + mStrokeInfo = new StrokeWithDashInfo(); + } +} + +void VDrawable::applyDashOp() +{ + if (mStrokeInfo && (mType == Type::StrokeWithDash)) { + auto obj = static_cast<StrokeWithDashInfo *>(mStrokeInfo); + if (!obj->mDash.empty()) { + VDasher dasher(obj->mDash.data(), obj->mDash.size()); + mPath.clone(dasher.dashed(mPath)); + } + } +} + +void VDrawable::preprocess(const VRect &clip) +{ + if (mFlag & (DirtyState::Path)) { + if (mType == Type::Fill) { + mRasterizer.rasterize(std::move(mPath), mFillRule, clip); + } else { + applyDashOp(); + mRasterizer.rasterize(std::move(mPath), mStrokeInfo->cap, mStrokeInfo->join, + mStrokeInfo->width, mStrokeInfo->miterLimit, clip); + } + mPath = {}; + mFlag &= ~DirtyFlag(DirtyState::Path); + } +} + +VRle VDrawable::rle() +{ + return mRasterizer.rle(); +} + +void VDrawable::setStrokeInfo(CapStyle cap, JoinStyle join, float miterLimit, + float strokeWidth) +{ + assert(mStrokeInfo); + if ((mStrokeInfo->cap == cap) && (mStrokeInfo->join == join) && + vCompare(mStrokeInfo->miterLimit, miterLimit) && + vCompare(mStrokeInfo->width, strokeWidth)) + return; + + mStrokeInfo->cap = cap; + mStrokeInfo->join = join; + mStrokeInfo->miterLimit = miterLimit; + mStrokeInfo->width = strokeWidth; + mFlag |= DirtyState::Path; +} + +void VDrawable::setDashInfo(std::vector<float> &dashInfo) +{ + assert(mStrokeInfo); + assert(mType == VDrawable::Type::StrokeWithDash); + + auto obj = static_cast<StrokeWithDashInfo *>(mStrokeInfo); + bool hasChanged = false; + + if (obj->mDash.size() == dashInfo.size()) { + for (uint i = 0; i < dashInfo.size(); ++i) { + if (!vCompare(obj->mDash[i], dashInfo[i])) { + hasChanged = true; + break; + } + } + } else { + hasChanged = true; + } + + if (!hasChanged) return; + + obj->mDash = dashInfo; + + mFlag |= DirtyState::Path; +} + +void VDrawable::setPath(const VPath &path) +{ + mPath = path; + mFlag |= DirtyState::Path; +} diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdrawable.h b/vendor/github.com/Benau/go_rlottie/vector_vdrawable.h new file mode 100644 index 00000000..77f889da --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdrawable.h @@ -0,0 +1,93 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VDRAWABLE_H +#define VDRAWABLE_H +#include <future> +#include <cstring> +#include "vector_vbrush.h" +#include "vector_vpath.h" +#include "vector_vrle.h" +#include "vector_vraster.h" + +class VDrawable { +public: + enum class DirtyState : unsigned char { + None = 1<<0, + Path = 1<<1, + Stroke = 1<<2, + Brush = 1<<3, + All = (Path | Stroke | Brush) + }; + + enum class Type : unsigned char{ + Fill, + Stroke, + StrokeWithDash + }; + + explicit VDrawable(VDrawable::Type type = Type::Fill); + void setType(VDrawable::Type type); + ~VDrawable() noexcept; + + typedef vFlag<DirtyState> DirtyFlag; + void setPath(const VPath &path); + void setFillRule(FillRule rule) { mFillRule = rule; } + void setBrush(const VBrush &brush) { mBrush = brush; } + void setStrokeInfo(CapStyle cap, JoinStyle join, float miterLimit, + float strokeWidth); + void setDashInfo(std::vector<float> &dashInfo); + void preprocess(const VRect &clip); + void applyDashOp(); + VRle rle(); + void setName(const char *name) + { + mName = name; + } + const char* name() const { return mName; } + +public: + struct StrokeInfo { + float width{0.0}; + float miterLimit{10}; + CapStyle cap{CapStyle::Flat}; + JoinStyle join{JoinStyle::Bevel}; + }; + + struct StrokeWithDashInfo : public StrokeInfo{ + std::vector<float> mDash; + }; + +public: + VPath mPath; + VBrush mBrush; + VRasterizer mRasterizer; + StrokeInfo *mStrokeInfo{nullptr}; + + DirtyFlag mFlag{DirtyState::All}; + FillRule mFillRule{FillRule::Winding}; + VDrawable::Type mType{Type::Fill}; + + const char *mName{nullptr}; +}; + +#endif // VDRAWABLE_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper.cpp b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper.cpp new file mode 100644 index 00000000..e2601362 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper.cpp @@ -0,0 +1,767 @@ +#include "config.h" +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vdrawhelper.h" +#include <algorithm> +#include <climits> +#include <cstring> +#include <mutex> +#include <unordered_map> +#include <array> + +static RenderFuncTable RenderTable; + +void VTextureData::setClip(const VRect &clip) +{ + left = clip.left(); + top = clip.top(); + right = std::min(clip.right(), int(width())) - 1; + bottom = std::min(clip.bottom(), int(height())) - 1; +} + +class VGradientCache { +public: + struct CacheInfo : public VColorTable { + inline CacheInfo(VGradientStops s) : stops(std::move(s)) {} + VGradientStops stops; + }; + using VCacheData = std::shared_ptr<const CacheInfo>; + using VCacheKey = int64_t; + using VGradientColorTableHash = + std::unordered_multimap<VCacheKey, VCacheData>; + + bool generateGradientColorTable(const VGradientStops &stops, float alpha, + uint32_t *colorTable, int size); + VCacheData getBuffer(const VGradient &gradient) + { + VCacheKey hash_val = 0; + VCacheData info; + const VGradientStops &stops = gradient.mStops; + for (uint i = 0; i < stops.size() && i <= 2; i++) + hash_val += + VCacheKey(stops[i].second.premulARGB() * gradient.alpha()); + + { + std::lock_guard<std::mutex> guard(mMutex); + + size_t count = mCache.count(hash_val); + if (!count) { + // key is not present in the hash + info = addCacheElement(hash_val, gradient); + } else if (count == 1) { + auto search = mCache.find(hash_val); + if (search->second->stops == stops) { + info = search->second; + } else { + // didn't find an exact match + info = addCacheElement(hash_val, gradient); + } + } else { + // we have a multiple data with same key + auto range = mCache.equal_range(hash_val); + for (auto it = range.first; it != range.second; ++it) { + if (it->second->stops == stops) { + info = it->second; + break; + } + } + if (!info) { + // didn't find an exact match + info = addCacheElement(hash_val, gradient); + } + } + } + return info; + } + + static VGradientCache &instance() + { + static VGradientCache CACHE; + return CACHE; + } + +protected: + uint maxCacheSize() const { return 60; } + VCacheData addCacheElement(VCacheKey hash_val, const VGradient &gradient) + { + if (mCache.size() == maxCacheSize()) { + uint count = maxCacheSize() / 10; + while (count--) { + mCache.erase(mCache.begin()); + } + } + auto cache_entry = std::make_shared<CacheInfo>(gradient.mStops); + cache_entry->alpha = generateGradientColorTable( + gradient.mStops, gradient.alpha(), cache_entry->buffer32, + VGradient::colorTableSize); + mCache.insert(std::make_pair(hash_val, cache_entry)); + return cache_entry; + } + +private: + VGradientCache() = default; + + VGradientColorTableHash mCache; + std::mutex mMutex; +}; + +bool VGradientCache::generateGradientColorTable(const VGradientStops &stops, + float opacity, + uint32_t *colorTable, int size) +{ + int dist, idist, pos = 0; + size_t i; + bool alpha = false; + size_t stopCount = stops.size(); + const VGradientStop *curr, *next, *start; + uint32_t curColor, nextColor; + float delta, t, incr, fpos; + + if (!vCompare(opacity, 1.0f)) alpha = true; + + start = stops.data(); + curr = start; + if (!curr->second.isOpaque()) alpha = true; + curColor = curr->second.premulARGB(opacity); + incr = 1.0f / (float)size; + fpos = 1.5f * incr; + + colorTable[pos++] = curColor; + + while (fpos <= curr->first) { + colorTable[pos] = colorTable[pos - 1]; + pos++; + fpos += incr; + } + + for (i = 0; i < stopCount - 1; ++i) { + curr = (start + i); + next = (start + i + 1); + delta = 1 / (next->first - curr->first); + if (!next->second.isOpaque()) alpha = true; + nextColor = next->second.premulARGB(opacity); + while (fpos < next->first && pos < size) { + t = (fpos - curr->first) * delta; + dist = (int)(255 * t); + idist = 255 - dist; + colorTable[pos] = + interpolate_pixel(curColor, idist, nextColor, dist); + ++pos; + fpos += incr; + } + curColor = nextColor; + } + + for (; pos < size; ++pos) colorTable[pos] = curColor; + + // Make sure the last color stop is represented at the end of the table + colorTable[size - 1] = curColor; + return alpha; +} + +void VRasterBuffer::clear() +{ + memset(mBuffer, 0, mHeight * mBytesPerLine); +} + +VBitmap::Format VRasterBuffer::prepare(const VBitmap *image) +{ + mBuffer = image->data(); + mWidth = image->width(); + mHeight = image->height(); + mBytesPerPixel = 4; + mBytesPerLine = image->stride(); + + mFormat = image->format(); + return mFormat; +} + +void VSpanData::init(VRasterBuffer *image) +{ + mRasterBuffer = image; + setDrawRegion(VRect(0, 0, int(image->width()), int(image->height()))); + mType = VSpanData::Type::None; + mBlendFunc = nullptr; + mUnclippedBlendFunc = nullptr; +} + +/* + * Gradient Draw routines + * + */ + +#define FIXPT_BITS 8 +#define FIXPT_SIZE (1 << FIXPT_BITS) +static inline void getLinearGradientValues(LinearGradientValues *v, + const VSpanData * data) +{ + const VGradientData *grad = &data->mGradient; + v->dx = grad->linear.x2 - grad->linear.x1; + v->dy = grad->linear.y2 - grad->linear.y1; + v->l = v->dx * v->dx + v->dy * v->dy; + v->off = 0; + if (v->l != 0) { + v->dx /= v->l; + v->dy /= v->l; + v->off = -v->dx * grad->linear.x1 - v->dy * grad->linear.y1; + } +} + +static inline void getRadialGradientValues(RadialGradientValues *v, + const VSpanData * data) +{ + const VGradientData &gradient = data->mGradient; + v->dx = gradient.radial.cx - gradient.radial.fx; + v->dy = gradient.radial.cy - gradient.radial.fy; + + v->dr = gradient.radial.cradius - gradient.radial.fradius; + v->sqrfr = gradient.radial.fradius * gradient.radial.fradius; + + v->a = v->dr * v->dr - v->dx * v->dx - v->dy * v->dy; + v->inv2a = 1 / (2 * v->a); + + v->extended = !vIsZero(gradient.radial.fradius) || v->a <= 0; +} + +static inline int gradientClamp(const VGradientData *grad, int ipos) +{ + int limit; + + if (grad->mSpread == VGradient::Spread::Repeat) { + ipos = ipos % VGradient::colorTableSize; + ipos = ipos < 0 ? VGradient::colorTableSize + ipos : ipos; + } else if (grad->mSpread == VGradient::Spread::Reflect) { + limit = VGradient::colorTableSize * 2; + ipos = ipos % limit; + ipos = ipos < 0 ? limit + ipos : ipos; + ipos = ipos >= VGradient::colorTableSize ? limit - 1 - ipos : ipos; + } else { + if (ipos < 0) + ipos = 0; + else if (ipos >= VGradient::colorTableSize) + ipos = VGradient::colorTableSize - 1; + } + return ipos; +} + +static uint32_t gradientPixelFixed(const VGradientData *grad, int fixed_pos) +{ + int ipos = (fixed_pos + (FIXPT_SIZE / 2)) >> FIXPT_BITS; + + return grad->mColorTable[gradientClamp(grad, ipos)]; +} + +static inline uint32_t gradientPixel(const VGradientData *grad, float pos) +{ + int ipos = (int)(pos * (VGradient::colorTableSize - 1) + (float)(0.5)); + + return grad->mColorTable[gradientClamp(grad, ipos)]; +} + +void fetch_linear_gradient(uint32_t *buffer, const Operator *op, + const VSpanData *data, int y, int x, int length) +{ + float t, inc; + const VGradientData *gradient = &data->mGradient; + + bool affine = true; + float rx = 0, ry = 0; + if (op->linear.l == 0) { + t = inc = 0; + } else { + rx = data->m21 * (y + float(0.5)) + data->m11 * (x + float(0.5)) + + data->dx; + ry = data->m22 * (y + float(0.5)) + data->m12 * (x + float(0.5)) + + data->dy; + t = op->linear.dx * rx + op->linear.dy * ry + op->linear.off; + inc = op->linear.dx * data->m11 + op->linear.dy * data->m12; + affine = !data->m13 && !data->m23; + + if (affine) { + t *= (VGradient::colorTableSize - 1); + inc *= (VGradient::colorTableSize - 1); + } + } + + const uint32_t *end = buffer + length; + if (affine) { + if (inc > float(-1e-5) && inc < float(1e-5)) { + memfill32(buffer, gradientPixelFixed(gradient, int(t * FIXPT_SIZE)), + length); + } else { + if (t + inc * length < float(INT_MAX >> (FIXPT_BITS + 1)) && + t + inc * length > float(INT_MIN >> (FIXPT_BITS + 1))) { + // we can use fixed point math + int t_fixed = int(t * FIXPT_SIZE); + int inc_fixed = int(inc * FIXPT_SIZE); + while (buffer < end) { + *buffer = gradientPixelFixed(gradient, t_fixed); + t_fixed += inc_fixed; + ++buffer; + } + } else { + // we have to fall back to float math + while (buffer < end) { + *buffer = + gradientPixel(gradient, t / VGradient::colorTableSize); + t += inc; + ++buffer; + } + } + } + } else { // fall back to float math here as well + float rw = data->m23 * (y + float(0.5)) + data->m13 * (x + float(0.5)) + + data->m33; + while (buffer < end) { + float xt = rx / rw; + float yt = ry / rw; + t = (op->linear.dx * xt + op->linear.dy * yt) + op->linear.off; + + *buffer = gradientPixel(gradient, t); + rx += data->m11; + ry += data->m12; + rw += data->m13; + if (!rw) { + rw += data->m13; + } + ++buffer; + } + } +} + +static inline float radialDeterminant(float a, float b, float c) +{ + return (b * b) - (4 * a * c); +} + +static void fetch(uint32_t *buffer, uint32_t *end, const Operator *op, + const VSpanData *data, float det, float delta_det, + float delta_delta_det, float b, float delta_b) +{ + if (op->radial.extended) { + while (buffer < end) { + uint32_t result = 0; + if (det >= 0) { + float w = std::sqrt(det) - b; + if (data->mGradient.radial.fradius + op->radial.dr * w >= 0) + result = gradientPixel(&data->mGradient, w); + } + + *buffer = result; + + det += delta_det; + delta_det += delta_delta_det; + b += delta_b; + + ++buffer; + } + } else { + while (buffer < end) { + *buffer++ = gradientPixel(&data->mGradient, std::sqrt(det) - b); + + det += delta_det; + delta_det += delta_delta_det; + b += delta_b; + } + } +} + +void fetch_radial_gradient(uint32_t *buffer, const Operator *op, + const VSpanData *data, int y, int x, int length) +{ + // avoid division by zero + if (vIsZero(op->radial.a)) { + memfill32(buffer, 0, length); + return; + } + + float rx = + data->m21 * (y + float(0.5)) + data->dx + data->m11 * (x + float(0.5)); + float ry = + data->m22 * (y + float(0.5)) + data->dy + data->m12 * (x + float(0.5)); + bool affine = !data->m13 && !data->m23; + + uint32_t *end = buffer + length; + if (affine) { + rx -= data->mGradient.radial.fx; + ry -= data->mGradient.radial.fy; + + float inv_a = 1 / float(2 * op->radial.a); + + const float delta_rx = data->m11; + const float delta_ry = data->m12; + + float b = 2 * (op->radial.dr * data->mGradient.radial.fradius + + rx * op->radial.dx + ry * op->radial.dy); + float delta_b = + 2 * (delta_rx * op->radial.dx + delta_ry * op->radial.dy); + const float b_delta_b = 2 * b * delta_b; + const float delta_b_delta_b = 2 * delta_b * delta_b; + + const float bb = b * b; + const float delta_bb = delta_b * delta_b; + + b *= inv_a; + delta_b *= inv_a; + + const float rxrxryry = rx * rx + ry * ry; + const float delta_rxrxryry = delta_rx * delta_rx + delta_ry * delta_ry; + const float rx_plus_ry = 2 * (rx * delta_rx + ry * delta_ry); + const float delta_rx_plus_ry = 2 * delta_rxrxryry; + + inv_a *= inv_a; + + float det = + (bb - 4 * op->radial.a * (op->radial.sqrfr - rxrxryry)) * inv_a; + float delta_det = (b_delta_b + delta_bb + + 4 * op->radial.a * (rx_plus_ry + delta_rxrxryry)) * + inv_a; + const float delta_delta_det = + (delta_b_delta_b + 4 * op->radial.a * delta_rx_plus_ry) * inv_a; + + fetch(buffer, end, op, data, det, delta_det, delta_delta_det, b, + delta_b); + } else { + float rw = data->m23 * (y + float(0.5)) + data->m33 + + data->m13 * (x + float(0.5)); + + while (buffer < end) { + if (rw == 0) { + *buffer = 0; + } else { + float invRw = 1 / rw; + float gx = rx * invRw - data->mGradient.radial.fx; + float gy = ry * invRw - data->mGradient.radial.fy; + float b = 2 * (op->radial.dr * data->mGradient.radial.fradius + + gx * op->radial.dx + gy * op->radial.dy); + float det = radialDeterminant( + op->radial.a, b, op->radial.sqrfr - (gx * gx + gy * gy)); + + uint32_t result = 0; + if (det >= 0) { + float detSqrt = std::sqrt(det); + + float s0 = (-b - detSqrt) * op->radial.inv2a; + float s1 = (-b + detSqrt) * op->radial.inv2a; + + float s = vMax(s0, s1); + + if (data->mGradient.radial.fradius + op->radial.dr * s >= 0) + result = gradientPixel(&data->mGradient, s); + } + + *buffer = result; + } + + rx += data->m11; + ry += data->m12; + rw += data->m13; + + ++buffer; + } + } +} + +static inline Operator getOperator(const VSpanData *data) +{ + Operator op; + bool solidSource = false; + + switch (data->mType) { + case VSpanData::Type::Solid: + solidSource = (vAlpha(data->mSolid) == 255); + op.srcFetch = nullptr; + break; + case VSpanData::Type::LinearGradient: + solidSource = false; + getLinearGradientValues(&op.linear, data); + op.srcFetch = &fetch_linear_gradient; + break; + case VSpanData::Type::RadialGradient: + solidSource = false; + getRadialGradientValues(&op.radial, data); + op.srcFetch = &fetch_radial_gradient; + break; + default: + op.srcFetch = nullptr; + break; + } + + op.mode = data->mBlendMode; + if (op.mode == BlendMode::SrcOver && solidSource) op.mode = BlendMode::Src; + + op.funcSolid = RenderTable.color(op.mode); + op.func = RenderTable.src(op.mode); + + return op; +} + +static void blend_color(size_t size, const VRle::Span *array, void *userData) +{ + VSpanData *data = (VSpanData *)(userData); + Operator op = getOperator(data); + const uint color = data->mSolid; + + for (size_t i = 0 ; i < size; ++i) { + const auto &span = array[i]; + op.funcSolid(data->buffer(span.x, span.y), span.len, color, span.coverage); + } +} + +// Signature of Process Object +// void Pocess(uint* scratchBuffer, size_t x, size_t y, uchar cov) +template <class Process> +static inline void process_in_chunk(const VRle::Span *array, size_t size, + Process process) +{ + std::array<uint, 2048> buf; + for (size_t i = 0; i < size; i++) { + const auto &span = array[i]; + size_t len = span.len; + auto x = span.x; + while (len) { + auto l = std::min(len, buf.size()); + process(buf.data(), x, span.y, l, span.coverage); + x += l; + len -= l; + } + } +} + +static void blend_gradient(size_t size, const VRle::Span *array, + void *userData) +{ + VSpanData *data = (VSpanData *)(userData); + Operator op = getOperator(data); + + if (!op.srcFetch) return; + + process_in_chunk( + array, size, + [&](uint *scratch, size_t x, size_t y, size_t len, uchar cov) { + op.srcFetch(scratch, &op, data, (int)y, (int)x, (int)len); + op.func(data->buffer((int)x, (int)y), (int)len, scratch, cov); + }); +} + +template <class T> +constexpr const T &clamp(const T &v, const T &lo, const T &hi) +{ + return v < lo ? lo : hi < v ? hi : v; +} + +static constexpr inline uchar alpha_mul(uchar a, uchar b) +{ + return ((a * b) >> 8); +} + +static void blend_image_xform(size_t size, const VRle::Span *array, + void *userData) +{ + const auto data = reinterpret_cast<const VSpanData *>(userData); + const auto &src = data->texture(); + + if (src.format() != VBitmap::Format::ARGB32_Premultiplied && + src.format() != VBitmap::Format::ARGB32) { + //@TODO other formats not yet handled. + return; + } + + Operator op = getOperator(data); + + process_in_chunk( + array, size, + [&](uint *scratch, size_t x, size_t y, size_t len, uchar cov) { + const auto coverage = (cov * src.alpha()) >> 8; + const float xfactor = y * data->m21 + data->dx + data->m11; + const float yfactor = y * data->m22 + data->dy + data->m12; + for (size_t i = 0; i < len; i++) { + const float fx = (x + i) * data->m11 + xfactor; + const float fy = (x + i) * data->m12 + yfactor; + const int px = clamp(int(fx), src.left, src.right); + const int py = clamp(int(fy), src.top, src.bottom); + scratch[i] = src.pixel(px, py); + } + op.func(data->buffer((int)x, (int)y), (int)len, scratch, coverage); + }); +} + +static void blend_image(size_t size, const VRle::Span *array, void *userData) +{ + const auto data = reinterpret_cast<const VSpanData *>(userData); + const auto &src = data->texture(); + + if (src.format() != VBitmap::Format::ARGB32_Premultiplied && + src.format() != VBitmap::Format::ARGB32) { + //@TODO other formats not yet handled. + return; + } + + Operator op = getOperator(data); + + for (size_t i = 0; i < size; i++) { + const auto &span = array[i]; + int x = span.x; + int length = span.len; + int sx = x + int(data->dx); + int sy = span.y + int(data->dy); + + // notyhing to copy. + if (sy < 0 || sy >= int(src.height()) || sx >= int(src.width()) || + (sx + length) <= 0) + continue; + + // intersecting left edge of image + if (sx < 0) { + x -= sx; + length += sx; + sx = 0; + } + // intersecting right edge of image + if (sx + length > int(src.width())) length = (int)src.width() - sx; + + op.func(data->buffer(x, span.y), length, src.pixelRef(sx, sy), + alpha_mul(span.coverage, src.alpha())); + } +} + +void VSpanData::setup(const VBrush &brush, BlendMode /*mode*/, int /*alpha*/) +{ + transformType = VMatrix::MatrixType::None; + + switch (brush.type()) { + case VBrush::Type::NoBrush: + mType = VSpanData::Type::None; + break; + case VBrush::Type::Solid: + mType = VSpanData::Type::Solid; + mSolid = brush.mColor.premulARGB(); + break; + case VBrush::Type::LinearGradient: { + mType = VSpanData::Type::LinearGradient; + mColorTable = VGradientCache::instance().getBuffer(*brush.mGradient); + mGradient.mColorTable = mColorTable->buffer32; + mGradient.mColorTableAlpha = mColorTable->alpha; + mGradient.linear.x1 = brush.mGradient->linear.x1; + mGradient.linear.y1 = brush.mGradient->linear.y1; + mGradient.linear.x2 = brush.mGradient->linear.x2; + mGradient.linear.y2 = brush.mGradient->linear.y2; + mGradient.mSpread = brush.mGradient->mSpread; + setupMatrix(brush.mGradient->mMatrix); + break; + } + case VBrush::Type::RadialGradient: { + mType = VSpanData::Type::RadialGradient; + mColorTable = VGradientCache::instance().getBuffer(*brush.mGradient); + mGradient.mColorTable = mColorTable->buffer32; + mGradient.mColorTableAlpha = mColorTable->alpha; + mGradient.radial.cx = brush.mGradient->radial.cx; + mGradient.radial.cy = brush.mGradient->radial.cy; + mGradient.radial.fx = brush.mGradient->radial.fx; + mGradient.radial.fy = brush.mGradient->radial.fy; + mGradient.radial.cradius = brush.mGradient->radial.cradius; + mGradient.radial.fradius = brush.mGradient->radial.fradius; + mGradient.mSpread = brush.mGradient->mSpread; + setupMatrix(brush.mGradient->mMatrix); + break; + } + case VBrush::Type::Texture: { + mType = VSpanData::Type::Texture; + initTexture(&brush.mTexture->mBitmap, brush.mTexture->mAlpha, + brush.mTexture->mBitmap.rect()); + setupMatrix(brush.mTexture->mMatrix); + break; + } + default: + break; + } + updateSpanFunc(); +} + +void VSpanData::setupMatrix(const VMatrix &matrix) +{ + VMatrix inv = matrix.inverted(); + m11 = inv.m11; + m12 = inv.m12; + m13 = inv.m13; + m21 = inv.m21; + m22 = inv.m22; + m23 = inv.m23; + m33 = inv.m33; + dx = inv.mtx; + dy = inv.mty; + transformType = inv.type(); + + const bool affine = inv.isAffine(); + const float f1 = m11 * m11 + m21 * m21; + const float f2 = m12 * m12 + m22 * m22; + fast_matrix = affine && f1 < 1e4 && f2 < 1e4 && f1 > (1.0 / 65536) && + f2 > (1.0 / 65536) && fabs(dx) < 1e4 && fabs(dy) < 1e4; +} + +void VSpanData::initTexture(const VBitmap *bitmap, int alpha, + const VRect &sourceRect) +{ + mType = VSpanData::Type::Texture; + mTexture.prepare(bitmap); + mTexture.setClip(sourceRect); + mTexture.setAlpha(alpha); + updateSpanFunc(); +} + +void VSpanData::updateSpanFunc() +{ + switch (mType) { + case VSpanData::Type::None: + mUnclippedBlendFunc = nullptr; + break; + case VSpanData::Type::Solid: + mUnclippedBlendFunc = &blend_color; + break; + case VSpanData::Type::LinearGradient: + case VSpanData::Type::RadialGradient: { + mUnclippedBlendFunc = &blend_gradient; + break; + } + case VSpanData::Type::Texture: { + //@TODO update proper image function. + if (transformType <= VMatrix::MatrixType::Translate) { + mUnclippedBlendFunc = &blend_image; + } else { + mUnclippedBlendFunc = &blend_image_xform; + } + break; + } + } +} + +#if !defined(__SSE2__) && !defined(USE_ARM_NEON) +void memfill32(uint32_t *dest, uint32_t value, int length) +{ + // let compiler do the auto vectorization. + for (int i = 0 ; i < length; i++) { + *dest++ = value; + } +} +#endif + diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper.h b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper.h new file mode 100644 index 00000000..590c5950 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper.h @@ -0,0 +1,270 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VDRAWHELPER_H +#define VDRAWHELPER_H + +#include <memory> +#include <array> +#include "assert.h" +#include "vector_vbitmap.h" +#include "vector_vbrush.h" +#include "vector_vrect.h" +#include "vector_vrle.h" + +V_USE_NAMESPACE + +struct VSpanData; +struct Operator; + +struct RenderFunc +{ + using Color = void (*)(uint32_t *dest, int length, uint32_t color, uint32_t alpha); + using Src = void (*)(uint32_t *dest, int length, const uint32_t *src, uint32_t alpha); + enum class Type { + Invalid, + Color, + Src, + }; + RenderFunc() = default; + RenderFunc(Type t, Color f):type_(t), color_(f){assert(t == Type::Color);} + RenderFunc(Type t, Src f):type_(t), src_(f){ assert(t == Type::Src);} + + Type type_{Type::Invalid}; + union { + Color color_; + Src src_; + }; +}; + +class RenderFuncTable +{ +public: + RenderFuncTable(); + RenderFunc::Color color(BlendMode mode) const + { + return colorTable[uint32_t(mode)].color_; + } + RenderFunc::Src src(BlendMode mode) const + { + return srcTable[uint32_t(mode)].src_; + } +private: + void neon(); + void sse(); + void updateColor(BlendMode mode, RenderFunc::Color f) + { + colorTable[uint32_t(mode)] = {RenderFunc::Type::Color, f}; + } + void updateSrc(BlendMode mode, RenderFunc::Src f) + { + srcTable[uint32_t(mode)] = {RenderFunc::Type::Src, f}; + } +private: + std::array<RenderFunc, uint32_t(BlendMode::Last)> colorTable; + std::array<RenderFunc, uint32_t(BlendMode::Last)> srcTable; +}; + +typedef void (*SourceFetchProc)(uint32_t *buffer, const Operator *o, + const VSpanData *data, int y, int x, + int length); +typedef void (*ProcessRleSpan)(size_t count, const VRle::Span *spans, + void *userData); + +extern void memfill32(uint32_t *dest, uint32_t value, int count); + +struct LinearGradientValues { + float dx; + float dy; + float l; + float off; +}; + +struct RadialGradientValues { + float dx; + float dy; + float dr; + float sqrfr; + float a; + float inv2a; + bool extended; +}; + +struct Operator { + BlendMode mode; + SourceFetchProc srcFetch; + RenderFunc::Color funcSolid; + RenderFunc::Src func; + union { + LinearGradientValues linear; + RadialGradientValues radial; + }; +}; + +class VRasterBuffer { +public: + VBitmap::Format prepare(const VBitmap *image); + void clear(); + + void resetBuffer(int val = 0); + + inline uchar *scanLine(int y) + { + assert(y >= 0); + assert(size_t(y) < mHeight); + return mBuffer + y * mBytesPerLine; + } + uint32_t *pixelRef(int x, int y) const + { + return (uint32_t *)(mBuffer + y * mBytesPerLine + x * mBytesPerPixel); + } + + size_t width() const { return mWidth; } + size_t height() const { return mHeight; } + size_t bytesPerLine() const { return mBytesPerLine; } + size_t bytesPerPixel() const { return mBytesPerPixel; } + VBitmap::Format format() const { return mFormat; } + +private: + VBitmap::Format mFormat{VBitmap::Format::ARGB32_Premultiplied}; + size_t mWidth{0}; + size_t mHeight{0}; + size_t mBytesPerLine{0}; + size_t mBytesPerPixel{0}; + mutable uchar * mBuffer{nullptr}; +}; + +struct VGradientData { + VGradient::Spread mSpread; + struct Linear { + float x1, y1, x2, y2; + }; + struct Radial { + float cx, cy, fx, fy, cradius, fradius; + }; + union { + Linear linear; + Radial radial; + }; + const uint32_t *mColorTable; + bool mColorTableAlpha; +}; + +struct VTextureData : public VRasterBuffer { + uint32_t pixel(int x, int y) const { return *pixelRef(x, y); }; + uchar alpha() const { return mAlpha; } + void setAlpha(uchar alpha) { mAlpha = alpha; } + void setClip(const VRect &clip); + // clip rect + int left; + int right; + int top; + int bottom; + bool hasAlpha; + uchar mAlpha; +}; + +struct VColorTable { + uint32_t buffer32[VGradient::colorTableSize]; + bool alpha{true}; +}; + +struct VSpanData { + enum class Type { None, Solid, LinearGradient, RadialGradient, Texture }; + + void updateSpanFunc(); + void init(VRasterBuffer *image); + void setup(const VBrush &brush, BlendMode mode = BlendMode::SrcOver, + int alpha = 255); + void setupMatrix(const VMatrix &matrix); + + VRect clipRect() const + { + return VRect(0, 0, mDrawableSize.width(), mDrawableSize.height()); + } + + void setDrawRegion(const VRect ®ion) + { + mOffset = VPoint(region.left(), region.top()); + mDrawableSize = VSize(region.width(), region.height()); + } + + uint *buffer(int x, int y) const + { + return mRasterBuffer->pixelRef(x + mOffset.x(), y + mOffset.y()); + } + void initTexture(const VBitmap *image, int alpha, const VRect &sourceRect); + const VTextureData &texture() const { return mTexture; } + + BlendMode mBlendMode{BlendMode::SrcOver}; + VRasterBuffer * mRasterBuffer; + ProcessRleSpan mBlendFunc; + ProcessRleSpan mUnclippedBlendFunc; + VSpanData::Type mType; + std::shared_ptr<const VColorTable> mColorTable{nullptr}; + VPoint mOffset; // offset to the subsurface + VSize mDrawableSize; // suburface size + uint32_t mSolid; + VGradientData mGradient; + VTextureData mTexture; + + float m11, m12, m13, m21, m22, m23, m33, dx, dy; // inverse xform matrix + bool fast_matrix{true}; + VMatrix::MatrixType transformType{VMatrix::MatrixType::None}; +}; + +#define BYTE_MUL(c, a) \ + ((((((c) >> 8) & 0x00ff00ff) * (a)) & 0xff00ff00) + \ + (((((c)&0x00ff00ff) * (a)) >> 8) & 0x00ff00ff)) + +inline constexpr int vRed(uint32_t c) +{ + return ((c >> 16) & 0xff); +} + +inline constexpr int vGreen(uint32_t c) +{ + return ((c >> 8) & 0xff); +} + +inline constexpr int vBlue(uint32_t c) +{ + return (c & 0xff); +} + +inline constexpr int vAlpha(uint32_t c) +{ + return c >> 24; +} + +static inline uint32_t interpolate_pixel(uint x, uint a, uint y, uint b) +{ + uint t = (x & 0xff00ff) * a + (y & 0xff00ff) * b; + t >>= 8; + t &= 0xff00ff; + x = ((x >> 8) & 0xff00ff) * a + ((y >> 8) & 0xff00ff) * b; + x &= 0xff00ff00; + x |= t; + return x; +} + +#endif // QDRAWHELPER_P_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper_common.cpp b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper_common.cpp new file mode 100644 index 00000000..a4346c96 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper_common.cpp @@ -0,0 +1,190 @@ +#include "config.h" +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <cstring> +#include "vector_vdrawhelper.h" + +/* +result = s +dest = s * ca + d * cia +*/ +static void color_Source(uint32_t *dest, int length, uint32_t color, + uint32_t alpha) +{ + int ialpha, i; + + if (alpha == 255) { + memfill32(dest, color, length); + } else { + ialpha = 255 - alpha; + color = BYTE_MUL(color, alpha); + for (i = 0; i < length; ++i) + dest[i] = color + BYTE_MUL(dest[i], ialpha); + } +} + +/* + r = s + d * sia + dest = r * ca + d * cia + = (s + d * sia) * ca + d * cia + = s * ca + d * (sia * ca + cia) + = s * ca + d * (1 - sa*ca) + = s' + d ( 1 - s'a) +*/ +static void color_SourceOver(uint32_t *dest, int length, uint32_t color, + uint32_t alpha) +{ + int ialpha, i; + + if (alpha != 255) color = BYTE_MUL(color, alpha); + ialpha = 255 - vAlpha(color); + for (i = 0; i < length; ++i) dest[i] = color + BYTE_MUL(dest[i], ialpha); +} + +/* + result = d * sa + dest = d * sa * ca + d * cia + = d * (sa * ca + cia) +*/ +static void color_DestinationIn(uint *dest, int length, uint color, + uint alpha) +{ + uint a = vAlpha(color); + if (alpha != 255) { + a = BYTE_MUL(a, alpha) + 255 - alpha; + } + for (int i = 0; i < length; ++i) { + dest[i] = BYTE_MUL(dest[i], a); + } +} + +/* + result = d * sia + dest = d * sia * ca + d * cia + = d * (sia * ca + cia) +*/ +static void color_DestinationOut(uint *dest, int length, uint color, + uint alpha) +{ + uint a = vAlpha(~color); + if (alpha != 255) a = BYTE_MUL(a, alpha) + 255 - alpha; + for (int i = 0; i < length; ++i) { + dest[i] = BYTE_MUL(dest[i], a); + } +} + +static void src_Source(uint32_t *dest, int length, const uint32_t *src, + uint32_t alpha) +{ + if (alpha == 255) { + memcpy(dest, src, size_t(length) * sizeof(uint)); + } else { + uint ialpha = 255 - alpha; + for (int i = 0; i < length; ++i) { + dest[i] = + interpolate_pixel(src[i], alpha, dest[i], ialpha); + } + } +} + +/* s' = s * ca + * d' = s' + d (1 - s'a) + */ +static void src_SourceOver(uint32_t *dest, int length, const uint32_t *src, + uint32_t alpha) +{ + uint s, sia; + + if (alpha == 255) { + for (int i = 0; i < length; ++i) { + s = src[i]; + if (s >= 0xff000000) + dest[i] = s; + else if (s != 0) { + sia = vAlpha(~s); + dest[i] = s + BYTE_MUL(dest[i], sia); + } + } + } else { + /* source' = source * const_alpha + * dest = source' + dest ( 1- source'a) + */ + for (int i = 0; i < length; ++i) { + s = BYTE_MUL(src[i], alpha); + sia = vAlpha(~s); + dest[i] = s + BYTE_MUL(dest[i], sia); + } + } +} + +static void src_DestinationIn(uint *dest, int length, const uint *src, + uint alpha) +{ + if (alpha == 255) { + for (int i = 0; i < length; ++i) { + dest[i] = BYTE_MUL(dest[i], vAlpha(src[i])); + } + } else { + uint cia = 255 - alpha; + for (int i = 0; i < length; ++i) { + uint a = BYTE_MUL(vAlpha(src[i]), alpha) + cia; + dest[i] = BYTE_MUL(dest[i], a); + } + } +} + +static void src_DestinationOut(uint *dest, int length, const uint *src, + uint alpha) +{ + if (alpha == 255) { + for (int i = 0; i < length; ++i) { + dest[i] = BYTE_MUL(dest[i], vAlpha(~src[i])); + } + } else { + uint cia = 255 - alpha; + for (int i = 0; i < length; ++i) { + uint sia = BYTE_MUL(vAlpha(~src[i]), alpha) + cia; + dest[i] = BYTE_MUL(dest[i], sia); + } + } +} + +RenderFuncTable::RenderFuncTable() +{ + updateColor(BlendMode::Src, color_Source); + updateColor(BlendMode::SrcOver, color_SourceOver); + updateColor(BlendMode::DestIn, color_DestinationIn); + updateColor(BlendMode::DestOut, color_DestinationOut); + + updateSrc(BlendMode::Src, src_Source); + updateSrc(BlendMode::SrcOver, src_SourceOver); + updateSrc(BlendMode::DestIn, src_DestinationIn); + updateSrc(BlendMode::DestOut, src_DestinationOut); + +#if defined(USE_ARM_NEON) + neon(); +#endif +#if defined(__SSE2__) + sse(); +#endif +} diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper_neon.cpp b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper_neon.cpp new file mode 100644 index 00000000..24d7f579 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper_neon.cpp @@ -0,0 +1,34 @@ +#include "config.h" +#if defined(USE_ARM_NEON) + +#include "vector_vdrawhelper.h" + +extern "C" void pixman_composite_src_n_8888_asm_neon(int32_t w, int32_t h, + uint32_t *dst, + int32_t dst_stride, + uint32_t src); + +extern "C" void pixman_composite_over_n_8888_asm_neon(int32_t w, int32_t h, + uint32_t *dst, + int32_t dst_stride, + uint32_t src); + +void memfill32(uint32_t *dest, uint32_t value, int length) +{ + pixman_composite_src_n_8888_asm_neon(length, 1, dest, length, value); +} + +static void color_SourceOver(uint32_t *dest, int length, + uint32_t color, + uint32_t const_alpha) +{ + if (const_alpha != 255) color = BYTE_MUL(color, const_alpha); + + pixman_composite_over_n_8888_asm_neon(length, 1, dest, length, color); +} + +void RenderFuncTable::neon() +{ + updateColor(BlendMode::Src , color_SourceOver); +} +#endif diff --git a/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper_sse2.cpp b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper_sse2.cpp new file mode 100644 index 00000000..51a6c3e0 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vdrawhelper_sse2.cpp @@ -0,0 +1,261 @@ +#if defined(__SSE2__) + +#include <cstring> +#include <emmintrin.h> /* for SSE2 intrinsics */ +#include <xmmintrin.h> /* for _mm_shuffle_pi16 and _MM_SHUFFLE */ + +#include "vector_vdrawhelper.h" +// Each 32bits components of alphaChannel must be in the form 0x00AA00AA +inline static __m128i v4_byte_mul_sse2(__m128i c, __m128i a) +{ + const __m128i ag_mask = _mm_set1_epi32(0xFF00FF00); + const __m128i rb_mask = _mm_set1_epi32(0x00FF00FF); + + /* for AG */ + __m128i v_ag = _mm_and_si128(ag_mask, c); + v_ag = _mm_srli_epi32(v_ag, 8); + v_ag = _mm_mullo_epi16(a, v_ag); + v_ag = _mm_and_si128(ag_mask, v_ag); + + /* for RB */ + __m128i v_rb = _mm_and_si128(rb_mask, c); + v_rb = _mm_mullo_epi16(a, v_rb); + v_rb = _mm_srli_epi32(v_rb, 8); + v_rb = _mm_and_si128(rb_mask, v_rb); + + /* combine */ + return _mm_add_epi32(v_ag, v_rb); +} + +static inline __m128i v4_interpolate_color_sse2(__m128i a, __m128i c0, + __m128i c1) +{ + const __m128i rb_mask = _mm_set1_epi32(0xFF00FF00); + const __m128i zero = _mm_setzero_si128(); + + __m128i a_l = a; + __m128i a_h = a; + a_l = _mm_unpacklo_epi16(a_l, a_l); + a_h = _mm_unpackhi_epi16(a_h, a_h); + + __m128i a_t = _mm_slli_epi64(a_l, 32); + __m128i a_t0 = _mm_slli_epi64(a_h, 32); + + a_l = _mm_add_epi32(a_l, a_t); + a_h = _mm_add_epi32(a_h, a_t0); + + __m128i c0_l = c0; + __m128i c0_h = c0; + + c0_l = _mm_unpacklo_epi8(c0_l, zero); + c0_h = _mm_unpackhi_epi8(c0_h, zero); + + __m128i c1_l = c1; + __m128i c1_h = c1; + + c1_l = _mm_unpacklo_epi8(c1_l, zero); + c1_h = _mm_unpackhi_epi8(c1_h, zero); + + __m128i cl_sub = _mm_sub_epi16(c0_l, c1_l); + __m128i ch_sub = _mm_sub_epi16(c0_h, c1_h); + + cl_sub = _mm_mullo_epi16(cl_sub, a_l); + ch_sub = _mm_mullo_epi16(ch_sub, a_h); + + __m128i c1ls = _mm_slli_epi16(c1_l, 8); + __m128i c1hs = _mm_slli_epi16(c1_h, 8); + + cl_sub = _mm_add_epi16(cl_sub, c1ls); + ch_sub = _mm_add_epi16(ch_sub, c1hs); + + cl_sub = _mm_and_si128(cl_sub, rb_mask); + ch_sub = _mm_and_si128(ch_sub, rb_mask); + + cl_sub = _mm_srli_epi64(cl_sub, 8); + ch_sub = _mm_srli_epi64(ch_sub, 8); + + cl_sub = _mm_packus_epi16(cl_sub, cl_sub); + ch_sub = _mm_packus_epi16(ch_sub, ch_sub); + + return (__m128i)_mm_shuffle_ps((__m128)cl_sub, (__m128)ch_sub, 0x44); +} + +// Load src and dest vector +#define V4_FETCH_SRC_DEST \ + __m128i v_src = _mm_loadu_si128((__m128i*)src); \ + __m128i v_dest = _mm_load_si128((__m128i*)dest); + +#define V4_FETCH_SRC __m128i v_src = _mm_loadu_si128((__m128i*)src); + +#define V4_STORE_DEST _mm_store_si128((__m128i*)dest, v_src); + +#define V4_SRC_DEST_LEN_INC \ + dest += 4; \ + src += 4; \ + length -= 4; + +// Multiply src color with const_alpha +#define V4_ALPHA_MULTIPLY v_src = v4_byte_mul_sse2(v_src, v_alpha); + + +// dest = src + dest * sia +#define V4_COMP_OP_SRC \ + v_src = v4_interpolate_color_sse2(v_alpha, v_src, v_dest); + +#define LOOP_ALIGNED_U1_A4(DEST, LENGTH, UOP, A4OP) \ + { \ + while ((uintptr_t)DEST & 0xF && LENGTH) \ + UOP \ + \ + while (LENGTH) \ + { \ + switch (LENGTH) { \ + case 3: \ + case 2: \ + case 1: \ + UOP break; \ + default: \ + A4OP break; \ + } \ + } \ + } + +void memfill32(uint32_t* dest, uint32_t value, int length) +{ + __m128i vector_data = _mm_set_epi32(value, value, value, value); + + // run till memory alligned to 16byte memory + while (length && ((uintptr_t)dest & 0xf)) { + *dest++ = value; + length--; + } + + while (length >= 32) { + _mm_store_si128((__m128i*)(dest), vector_data); + _mm_store_si128((__m128i*)(dest + 4), vector_data); + _mm_store_si128((__m128i*)(dest + 8), vector_data); + _mm_store_si128((__m128i*)(dest + 12), vector_data); + _mm_store_si128((__m128i*)(dest + 16), vector_data); + _mm_store_si128((__m128i*)(dest + 20), vector_data); + _mm_store_si128((__m128i*)(dest + 24), vector_data); + _mm_store_si128((__m128i*)(dest + 28), vector_data); + + dest += 32; + length -= 32; + } + + if (length >= 16) { + _mm_store_si128((__m128i*)(dest), vector_data); + _mm_store_si128((__m128i*)(dest + 4), vector_data); + _mm_store_si128((__m128i*)(dest + 8), vector_data); + _mm_store_si128((__m128i*)(dest + 12), vector_data); + + dest += 16; + length -= 16; + } + + if (length >= 8) { + _mm_store_si128((__m128i*)(dest), vector_data); + _mm_store_si128((__m128i*)(dest + 4), vector_data); + + dest += 8; + length -= 8; + } + + if (length >= 4) { + _mm_store_si128((__m128i*)(dest), vector_data); + + dest += 4; + length -= 4; + } + + while (length) { + *dest++ = value; + length--; + } +} + +// dest = color + (dest * alpha) +inline static void copy_helper_sse2(uint32_t* dest, int length, + uint32_t color, uint32_t alpha) +{ + const __m128i v_color = _mm_set1_epi32(color); + const __m128i v_a = _mm_set1_epi16(alpha); + + LOOP_ALIGNED_U1_A4(dest, length, + { /* UOP */ + *dest = color + BYTE_MUL(*dest, alpha); + dest++; + length--; + }, + { /* A4OP */ + __m128i v_dest = _mm_load_si128((__m128i*)dest); + + v_dest = v4_byte_mul_sse2(v_dest, v_a); + v_dest = _mm_add_epi32(v_dest, v_color); + + _mm_store_si128((__m128i*)dest, v_dest); + + dest += 4; + length -= 4; + }) +} + +static void color_Source(uint32_t* dest, int length, uint32_t color, + uint32_t const_alpha) +{ + if (const_alpha == 255) { + memfill32(dest, color, length); + } else { + int ialpha; + + ialpha = 255 - const_alpha; + color = BYTE_MUL(color, const_alpha); + copy_helper_sse2(dest, length, color, ialpha); + } +} + +static void color_SourceOver(uint32_t* dest, int length, + uint32_t color, + uint32_t const_alpha) +{ + int ialpha; + + if (const_alpha != 255) color = BYTE_MUL(color, const_alpha); + ialpha = 255 - vAlpha(color); + copy_helper_sse2(dest, length, color, ialpha); +} + +static void src_Source(uint32_t* dest, int length, const uint32_t* src, + uint32_t const_alpha) +{ + int ialpha; + if (const_alpha == 255) { + memcpy(dest, src, length * sizeof(uint32_t)); + } else { + ialpha = 255 - const_alpha; + __m128i v_alpha = _mm_set1_epi32(const_alpha); + + LOOP_ALIGNED_U1_A4(dest, length, + { /* UOP */ + *dest = interpolate_pixel(*src, const_alpha, + *dest, ialpha); + dest++; + src++; + length--; + }, + {/* A4OP */ + V4_FETCH_SRC_DEST V4_COMP_OP_SRC V4_STORE_DEST + V4_SRC_DEST_LEN_INC}) + } +} + +void RenderFuncTable::sse() +{ + updateColor(BlendMode::Src , color_Source); + updateColor(BlendMode::SrcOver , color_SourceOver); + + updateSrc(BlendMode::Src , src_Source); +} + +#endif diff --git a/vendor/github.com/Benau/go_rlottie/vector_velapsedtimer.cpp b/vendor/github.com/Benau/go_rlottie/vector_velapsedtimer.cpp new file mode 100644 index 00000000..be065c27 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_velapsedtimer.cpp @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "vector_velapsedtimer.h" + +void VElapsedTimer::start() +{ + clock = std::chrono::high_resolution_clock::now(); + m_valid = true; +} + +double VElapsedTimer::restart() +{ + double elapsedTime = elapsed(); + start(); + return elapsedTime; +} + +double VElapsedTimer::elapsed() const +{ + if (!isValid()) return 0; + return std::chrono::duration<double, std::milli>( + std::chrono::high_resolution_clock::now() - clock) + .count(); +} + +bool VElapsedTimer::hasExpired(double time) +{ + double elapsedTime = elapsed(); + if (elapsedTime > time) return true; + return false; +} diff --git a/vendor/github.com/Benau/go_rlottie/vector_velapsedtimer.h b/vendor/github.com/Benau/go_rlottie/vector_velapsedtimer.h new file mode 100644 index 00000000..2cfe9cef --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_velapsedtimer.h @@ -0,0 +1,41 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VELAPSEDTIMER_H +#define VELAPSEDTIMER_H + +#include <chrono> +#include "vector_vglobal.h" + +class VElapsedTimer { +public: + double elapsed() const; + bool hasExpired(double millsec); + void start(); + double restart(); + inline bool isValid() const { return m_valid; } + +private: + std::chrono::high_resolution_clock::time_point clock; + bool m_valid{false}; +}; +#endif // VELAPSEDTIMER_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vglobal.h b/vendor/github.com/Benau/go_rlottie/vector_vglobal.h new file mode 100644 index 00000000..678ee199 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vglobal.h @@ -0,0 +1,302 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VGLOBAL_H +#define VGLOBAL_H + +#include <cmath> +#include <cstdint> +#include <iostream> +#include <type_traits> +#include <utility> + +using uint = uint32_t; +using ushort = uint16_t; +using uchar = uint8_t; + +#if !defined(V_NAMESPACE) + +#define V_USE_NAMESPACE +#define V_BEGIN_NAMESPACE +#define V_END_NAMESPACE + +#else /* user namespace */ + +#define V_USE_NAMESPACE using namespace ::V_NAMESPACE; +#define V_BEGIN_NAMESPACE namespace V_NAMESPACE { +#define V_END_NAMESPACE } + +#endif + +#ifndef __has_attribute +# define __has_attribute(x) 0 +#endif /* !__has_attribute */ + +#if __has_attribute(unused) +# define V_UNUSED __attribute__((__unused__)) +#else +# define V_UNUSED +#endif /* V_UNUSED */ + +#if __has_attribute(warn_unused_result) +# define V_REQUIRED_RESULT __attribute__((__warn_unused_result__)) +#else +# define V_REQUIRED_RESULT +#endif /* V_REQUIRED_RESULT */ + +#define V_CONSTEXPR constexpr +#define V_NOTHROW noexcept + +#include "vector_vdebug.h" + +#if __GNUC__ >= 7 +#define VECTOR_FALLTHROUGH __attribute__ ((fallthrough)); +#else +#define VECTOR_FALLTHROUGH +#endif + +#ifdef LOTTIE_THREAD_SUPPORT +#define vthread_local thread_local +#else +#define vthread_local +#endif + +#if defined(_MSC_VER) + #define V_ALWAYS_INLINE __forceinline +#else + #define V_ALWAYS_INLINE __attribute__((always_inline)) +#endif + +template <typename T> +V_CONSTEXPR inline const T &vMin(const T &a, const T &b) +{ + return (a < b) ? a : b; +} +template <typename T> +V_CONSTEXPR inline const T &vMax(const T &a, const T &b) +{ + return (a < b) ? b : a; +} + +static const double EPSILON_DOUBLE = 0.000000000001f; +static const float EPSILON_FLOAT = 0.000001f; + +static inline bool vCompare(float p1, float p2) +{ + return (std::abs(p1 - p2) < EPSILON_FLOAT); +} + +static inline bool vIsZero(float f) +{ + return (std::abs(f) <= EPSILON_FLOAT); +} + +static inline bool vIsZero(double f) +{ + return (std::abs(f) <= EPSILON_DOUBLE); +} + +class vFlagHelper { + int i; + +public: + explicit constexpr inline vFlagHelper(int ai) noexcept : i(ai) {} + constexpr inline operator int() const noexcept { return i; } + + explicit constexpr inline vFlagHelper(uint ai) noexcept : i(int(ai)) {} + explicit constexpr inline vFlagHelper(short ai) noexcept : i(int(ai)) {} + explicit constexpr inline vFlagHelper(ushort ai) noexcept : i(int(uint(ai))) {} + constexpr inline operator uint() const noexcept { return uint(i); } +}; + +template <typename Enum> +class vFlag { +public: + static_assert( + (sizeof(Enum) <= sizeof(int)), + "vFlag only supports int as storage so bigger type will overflow"); + static_assert((std::is_enum<Enum>::value), + "vFlag is only usable on enumeration types."); + + using Int = typename std::conditional< + std::is_unsigned<typename std::underlying_type<Enum>::type>::value, + unsigned int, signed int>::type; + + using enum_type = Enum; + // compiler-generated copy/move ctor/assignment operators are fine! + + vFlag() = default; + constexpr vFlag(Enum f) noexcept : i(Int(f)) {} + explicit constexpr vFlag(vFlagHelper f) noexcept : i(f) {} + + inline vFlag &operator&=(int mask) noexcept + { + i &= mask; + return *this; + } + inline vFlag &operator&=(uint mask) noexcept + { + i &= mask; + return *this; + } + inline vFlag &operator&=(Enum mask) noexcept + { + i &= Int(mask); + return *this; + } + inline vFlag &operator|=(vFlag f) noexcept + { + i |= f.i; + return *this; + } + inline vFlag &operator|=(Enum f) noexcept + { + i |= Int(f); + return *this; + } + inline vFlag &operator^=(vFlag f) noexcept + { + i ^= f.i; + return *this; + } + inline vFlag &operator^=(Enum f) noexcept + { + i ^= Int(f); + return *this; + } + + constexpr inline operator Int() const noexcept { return i; } + + constexpr inline vFlag operator|(vFlag f) const + { + return vFlag(vFlagHelper(i | f.i)); + } + constexpr inline vFlag operator|(Enum f) const noexcept + { + return vFlag(vFlagHelper(i | Int(f))); + } + constexpr inline vFlag operator^(vFlag f) const noexcept + { + return vFlag(vFlagHelper(i ^ f.i)); + } + constexpr inline vFlag operator^(Enum f) const noexcept + { + return vFlag(vFlagHelper(i ^ Int(f))); + } + constexpr inline vFlag operator&(int mask) const noexcept + { + return vFlag(vFlagHelper(i & mask)); + } + constexpr inline vFlag operator&(uint mask) const noexcept + { + return vFlag(vFlagHelper(i & mask)); + } + constexpr inline vFlag operator&(Enum f) const noexcept + { + return vFlag(vFlagHelper(i & Int(f))); + } + constexpr inline vFlag operator~() const noexcept + { + return vFlag(vFlagHelper(~i)); + } + + constexpr inline bool operator!() const noexcept { return !i; } + + constexpr inline bool testFlag(Enum f) const noexcept + { + return (i & Int(f)) == Int(f) && (Int(f) != 0 || i == Int(f)); + } + inline vFlag &setFlag(Enum f, bool on = true) noexcept + { + return on ? (*this |= f) : (*this &= ~f); + } + + Int i{0}; +}; + +class VColor { +public: + VColor() = default; + explicit VColor(uchar red, uchar green, uchar blue, uchar alpha = 255) noexcept + :a(alpha), r(red), g(green), b(blue){} + inline uchar red() const noexcept { return r; } + inline uchar green() const noexcept { return g; } + inline uchar blue() const noexcept { return b; } + inline uchar alpha() const noexcept { return a; } + inline void setRed(uchar red) noexcept { r = red; } + inline void setGreen(uchar green) noexcept { g = green; } + inline void setBlue(uchar blue) noexcept { b = blue; } + inline void setAlpha(uchar alpha) noexcept { a = alpha; } + inline bool isOpaque() const { return a == 255; } + inline bool isTransparent() const { return a == 0; } + inline bool operator==(const VColor &o) const + { + return ((a == o.a) && (r == o.r) && (g == o.g) && (b == o.b)); + } + uint premulARGB() const + { + int pr = (r * a) / 255; + int pg = (g * a) / 255; + int pb = (b * a) / 255; + return uint((a << 24) | (pr << 16) | (pg << 8) | (pb)); + } + + uint premulARGB(float opacity) const + { + int alpha = int(a * opacity); + int pr = (r * alpha) / 255; + int pg = (g * alpha) / 255; + int pb = (b * alpha) / 255; + return uint((alpha << 24) | (pr << 16) | (pg << 8) | (pb)); + } + +public: + uchar a{0}; + uchar r{0}; + uchar g{0}; + uchar b{0}; +}; + +enum class FillRule: unsigned char { EvenOdd, Winding }; +enum class JoinStyle: unsigned char { Miter, Bevel, Round }; +enum class CapStyle: unsigned char { Flat, Square, Round }; + +enum class BlendMode { + Src, + SrcOver, + DestIn, + DestOut, + Last, +}; + +#ifndef V_CONSTRUCTOR_FUNCTION +#define V_CONSTRUCTOR_FUNCTION0(AFUNC) \ + namespace { \ + static const struct AFUNC##_ctor_class_ { \ + inline AFUNC##_ctor_class_() { AFUNC(); } \ + } AFUNC##_ctor_instance_; \ + } + +#define V_CONSTRUCTOR_FUNCTION(AFUNC) V_CONSTRUCTOR_FUNCTION0(AFUNC) +#endif + +#endif // VGLOBAL_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vimageloader.cpp b/vendor/github.com/Benau/go_rlottie/vector_vimageloader.cpp new file mode 100644 index 00000000..08f502f8 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vimageloader.cpp @@ -0,0 +1,220 @@ +#include "vector_vimageloader.h" +#include "config.h" +#include "vector_vdebug.h" +#include <cstring> + +#ifdef _WIN32 +# include <windows.h> +#else +# include <dlfcn.h> +#endif // _WIN32 + +using lottie_image_load_f = unsigned char *(*)(const char *filename, int *x, + int *y, int *comp, int req_comp); +using lottie_image_load_data_f = unsigned char *(*)(const char *data, int len, + int *x, int *y, int *comp, + int req_comp); +using lottie_image_free_f = void (*)(unsigned char *); + +#ifdef __cplusplus +extern "C" { +#endif + +extern unsigned char *lottie_image_load(char const *filename, int *x, int *y, + int *comp, int req_comp); +extern unsigned char *lottie_image_load_from_data(const char *imageData, + int len, int *x, int *y, + int *comp, int req_comp); +extern void lottie_image_free(unsigned char *data); + +#ifdef __cplusplus +} +#endif + +struct VImageLoader::Impl { + lottie_image_load_f imageLoad{nullptr}; + lottie_image_free_f imageFree{nullptr}; + lottie_image_load_data_f imageFromData{nullptr}; + +#ifdef LOTTIE_IMAGE_MODULE_SUPPORT +# ifdef _WIN32 + HMODULE dl_handle{nullptr}; + bool moduleLoad() + { + dl_handle = LoadLibraryA(LOTTIE_IMAGE_MODULE_PLUGIN); + return (dl_handle == nullptr); + } + void moduleFree() + { + if (dl_handle) FreeLibrary(dl_handle); + } + void init() + { + imageLoad = reinterpret_cast<lottie_image_load_f>( + GetProcAddress(dl_handle, "lottie_image_load")); + imageFree = reinterpret_cast<lottie_image_free_f>( + GetProcAddress(dl_handle, "lottie_image_free")); + imageFromData = reinterpret_cast<lottie_image_load_data_f>( + GetProcAddress(dl_handle, "lottie_image_load_from_data")); + } +# else // _WIN32 + void *dl_handle{nullptr}; + void init() + { + imageLoad = reinterpret_cast<lottie_image_load_f>( + dlsym(dl_handle, "lottie_image_load")); + imageFree = reinterpret_cast<lottie_image_free_f>( + dlsym(dl_handle, "lottie_image_free")); + imageFromData = reinterpret_cast<lottie_image_load_data_f>( + dlsym(dl_handle, "lottie_image_load_from_data")); + } + + void moduleFree() + { + if (dl_handle) dlclose(dl_handle); + } + bool moduleLoad() + { + dl_handle = dlopen(LOTTIE_IMAGE_MODULE_PLUGIN, RTLD_LAZY); + return (dl_handle == nullptr); + } +# endif // _WIN32 +#else // LOTTIE_IMAGE_MODULE_SUPPORT + void init() + { + imageLoad = lottie_image_load; + imageFree = lottie_image_free; + imageFromData = lottie_image_load_from_data; + } + void moduleFree() {} + bool moduleLoad() { return false; } +#endif // LOTTIE_IMAGE_MODULE_SUPPORT + + Impl() + { + if (moduleLoad()) { + vWarning << "Failed to dlopen librlottie-image-loader library"; + return; + } + + init(); + + if (!imageLoad) + vWarning << "Failed to find symbol lottie_image_load in " + "librlottie-image-loader library"; + + if (!imageFree) + vWarning << "Failed to find symbol lottie_image_free in " + "librlottie-image-loader library"; + + if (!imageFromData) + vWarning << "Failed to find symbol lottie_image_load_data in " + "librlottie-image-loader library"; + } + + ~Impl() { moduleFree(); } + + VBitmap createBitmap(unsigned char *data, int width, int height, + int channel) + { + // premultiply alpha + if (channel == 4) + convertToBGRAPremul(data, width, height); + else + convertToBGRA(data, width, height); + + // create a bitmap of same size. + VBitmap result = + VBitmap(width, height, VBitmap::Format::ARGB32_Premultiplied); + + // copy the data to bitmap buffer + memcpy(result.data(), data, width * height * 4); + + // free the image data + imageFree(data); + + return result; + } + + VBitmap load(const char *fileName) + { + if (!imageLoad) return VBitmap(); + + int width, height, n; + unsigned char *data = imageLoad(fileName, &width, &height, &n, 4); + + if (!data) { + return VBitmap(); + } + + return createBitmap(data, width, height, n); + } + + VBitmap load(const char *imageData, size_t len) + { + if (!imageFromData) return VBitmap(); + + int width, height, n; + unsigned char *data = + imageFromData(imageData, static_cast<int>(len), &width, &height, &n, 4); + + if (!data) { + return VBitmap(); + } + + return createBitmap(data, width, height, n); + } + /* + * convert from RGBA to BGRA and premultiply + */ + void convertToBGRAPremul(unsigned char *bits, int width, int height) + { + int pixelCount = width * height; + unsigned char *pix = bits; + for (int i = 0; i < pixelCount; i++) { + unsigned char r = pix[0]; + unsigned char g = pix[1]; + unsigned char b = pix[2]; + unsigned char a = pix[3]; + + r = (r * a) / 255; + g = (g * a) / 255; + b = (b * a) / 255; + + pix[0] = b; + pix[1] = g; + pix[2] = r; + + pix += 4; + } + } + /* + * convert from RGBA to BGRA + */ + void convertToBGRA(unsigned char *bits, int width, int height) + { + int pixelCount = width * height; + unsigned char *pix = bits; + for (int i = 0; i < pixelCount; i++) { + unsigned char r = pix[0]; + unsigned char b = pix[2]; + pix[0] = b; + pix[2] = r; + pix += 4; + } + } +}; + +VImageLoader::VImageLoader() : mImpl(std::make_unique<VImageLoader::Impl>()) {} + +VImageLoader::~VImageLoader() {} + +VBitmap VImageLoader::load(const char *fileName) +{ + return mImpl->load(fileName); +} + +VBitmap VImageLoader::load(const char *data, size_t len) +{ + return mImpl->load(data, int(len)); +} diff --git a/vendor/github.com/Benau/go_rlottie/vector_vimageloader.h b/vendor/github.com/Benau/go_rlottie/vector_vimageloader.h new file mode 100644 index 00000000..fe9a0be4 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vimageloader.h @@ -0,0 +1,26 @@ +#ifndef VIMAGELOADER_H +#define VIMAGELOADER_H + +#include <memory> + +#include "vector_vbitmap.h" + +class VImageLoader +{ +public: + static VImageLoader& instance() + { + static VImageLoader singleton; + return singleton; + } + + VBitmap load(const char *fileName); + VBitmap load(const char *data, size_t len); + ~VImageLoader(); +private: + VImageLoader(); + struct Impl; + std::unique_ptr<Impl> mImpl; +}; + +#endif // VIMAGELOADER_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vinterpolator.cpp b/vendor/github.com/Benau/go_rlottie/vector_vinterpolator.cpp new file mode 100644 index 00000000..89e462a1 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vinterpolator.cpp @@ -0,0 +1,124 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "vector_vinterpolator.h" +#include <cmath> + +V_BEGIN_NAMESPACE + +#define NEWTON_ITERATIONS 4 +#define NEWTON_MIN_SLOPE 0.02 +#define SUBDIVISION_PRECISION 0.0000001 +#define SUBDIVISION_MAX_ITERATIONS 10 + +const float VInterpolator::kSampleStepSize = + 1.0f / float(VInterpolator::kSplineTableSize - 1); + +void VInterpolator::init(float aX1, float aY1, float aX2, float aY2) +{ + mX1 = aX1; + mY1 = aY1; + mX2 = aX2; + mY2 = aY2; + + if (mX1 != mY1 || mX2 != mY2) CalcSampleValues(); +} + +/*static*/ float VInterpolator::CalcBezier(float aT, float aA1, float aA2) +{ + // use Horner's scheme to evaluate the Bezier polynomial + return ((A(aA1, aA2) * aT + B(aA1, aA2)) * aT + C(aA1)) * aT; +} + +void VInterpolator::CalcSampleValues() +{ + for (int i = 0; i < kSplineTableSize; ++i) { + mSampleValues[i] = CalcBezier(float(i) * kSampleStepSize, mX1, mX2); + } +} + +float VInterpolator::GetSlope(float aT, float aA1, float aA2) +{ + return 3.0f * A(aA1, aA2) * aT * aT + 2.0f * B(aA1, aA2) * aT + C(aA1); +} + +float VInterpolator::value(float aX) const +{ + if (mX1 == mY1 && mX2 == mY2) return aX; + + return CalcBezier(GetTForX(aX), mY1, mY2); +} + +float VInterpolator::GetTForX(float aX) const +{ + // Find interval where t lies + float intervalStart = 0.0; + const float* currentSample = &mSampleValues[1]; + const float* const lastSample = &mSampleValues[kSplineTableSize - 1]; + for (; currentSample != lastSample && *currentSample <= aX; + ++currentSample) { + intervalStart += kSampleStepSize; + } + --currentSample; // t now lies between *currentSample and *currentSample+1 + + // Interpolate to provide an initial guess for t + float dist = + (aX - *currentSample) / (*(currentSample + 1) - *currentSample); + float guessForT = intervalStart + dist * kSampleStepSize; + + // Check the slope to see what strategy to use. If the slope is too small + // Newton-Raphson iteration won't converge on a root so we use bisection + // instead. + float initialSlope = GetSlope(guessForT, mX1, mX2); + if (initialSlope >= NEWTON_MIN_SLOPE) { + return NewtonRaphsonIterate(aX, guessForT); + } else if (initialSlope == 0.0) { + return guessForT; + } else { + return BinarySubdivide(aX, intervalStart, + intervalStart + kSampleStepSize); + } +} + +float VInterpolator::NewtonRaphsonIterate(float aX, float aGuessT) const +{ + // Refine guess with Newton-Raphson iteration + for (int i = 0; i < NEWTON_ITERATIONS; ++i) { + // We're trying to find where f(t) = aX, + // so we're actually looking for a root for: CalcBezier(t) - aX + float currentX = CalcBezier(aGuessT, mX1, mX2) - aX; + float currentSlope = GetSlope(aGuessT, mX1, mX2); + + if (currentSlope == 0.0) return aGuessT; + + aGuessT -= currentX / currentSlope; + } + + return aGuessT; +} + +float VInterpolator::BinarySubdivide(float aX, float aA, float aB) const +{ + float currentX; + float currentT; + int i = 0; + + do { + currentT = aA + (aB - aA) / 2.0f; + currentX = CalcBezier(currentT, mX1, mX2) - aX; + + if (currentX > 0.0) { + aB = currentT; + } else { + aA = currentT; + } + } while (fabs(currentX) > SUBDIVISION_PRECISION && + ++i < SUBDIVISION_MAX_ITERATIONS); + + return currentT; +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vinterpolator.h b/vendor/github.com/Benau/go_rlottie/vector_vinterpolator.h new file mode 100644 index 00000000..fb7fa937 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vinterpolator.h @@ -0,0 +1,88 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VINTERPOLATOR_H +#define VINTERPOLATOR_H + +#include "vector_vpoint.h" + +V_BEGIN_NAMESPACE + +class VInterpolator { +public: + VInterpolator() + { /* caller must call Init later */ + } + + VInterpolator(float aX1, float aY1, float aX2, float aY2) + { + init(aX1, aY1, aX2, aY2); + } + + VInterpolator(VPointF pt1, VPointF pt2) + { + init(pt1.x(), pt1.y(), pt2.x(), pt2.y()); + } + + void init(float aX1, float aY1, float aX2, float aY2); + + float value(float aX) const; + + void GetSplineDerivativeValues(float aX, float& aDX, float& aDY) const; + +private: + void CalcSampleValues(); + + /** + * Returns x(t) given t, x1, and x2, or y(t) given t, y1, and y2. + */ + static float CalcBezier(float aT, float aA1, float aA2); + + /** + * Returns dx/dt given t, x1, and x2, or dy/dt given t, y1, and y2. + */ + static float GetSlope(float aT, float aA1, float aA2); + + float GetTForX(float aX) const; + + float NewtonRaphsonIterate(float aX, float aGuessT) const; + + float BinarySubdivide(float aX, float aA, float aB) const; + + static float A(float aA1, float aA2) { return 1.0f - 3.0f * aA2 + 3.0f * aA1; } + + static float B(float aA1, float aA2) { return 3.0f * aA2 - 6.0f * aA1; } + + static float C(float aA1) { return 3.0f * aA1; } + + float mX1; + float mY1; + float mX2; + float mY2; + enum { kSplineTableSize = 11 }; + float mSampleValues[kSplineTableSize]; + static const float kSampleStepSize; +}; + +V_END_NAMESPACE + +#endif // VINTERPOLATOR_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vline.h b/vendor/github.com/Benau/go_rlottie/vector_vline.h new file mode 100644 index 00000000..68edaa59 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vline.h @@ -0,0 +1,97 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VLINE_H +#define VLINE_H + +#include "vector_vglobal.h" +#include "vector_vpoint.h" + +V_BEGIN_NAMESPACE + +class VLine { +public: + VLine() = default; + VLine(float x1, float y1, float x2, float y2) + : mX1(x1), mY1(y1), mX2(x2), mY2(y2) + { + } + VLine(const VPointF &p1, const VPointF &p2) + : mX1(p1.x()), mY1(p1.y()), mX2(p2.x()), mY2(p2.y()) + { + } + float length() const { return length(mX1, mY1, mX2, mY2);} + void splitAtLength(float length, VLine &left, VLine &right) const; + VPointF p1() const { return {mX1, mY1}; } + VPointF p2() const { return {mX2, mY2}; } + float angle() const; + static float length(float x1, float y1, float x2, float y2); + +private: + float mX1{0}; + float mY1{0}; + float mX2{0}; + float mY2{0}; +}; + +inline float VLine::angle() const +{ + static constexpr float K_PI = 3.141592f; + const float dx = mX2 - mX1; + const float dy = mY2 - mY1; + + const float theta = std::atan2(dy, dx) * 180.0f / K_PI; + return theta; +} + +// approximate sqrt(x*x + y*y) using alpha max plus beta min algorithm. +// With alpha = 1, beta = 3/8, giving results with the largest error less +// than 7% compared to the exact value. +inline V_ALWAYS_INLINE float VLine::length(float x1, float y1, float x2, float y2) +{ + float x = x2 - x1; + float y = y2 - y1; + + x = x < 0 ? -x : x; + y = y < 0 ? -y : y; + + return (x > y ? x + 0.375f * y : y + 0.375f * x); +} + +inline void VLine::splitAtLength(float lengthAt, VLine &left, VLine &right) const +{ + float len = length(); + float dx = ((mX2 - mX1) / len) * lengthAt; + float dy = ((mY2 - mY1) / len) * lengthAt; + + left.mX1 = mX1; + left.mY1 = mY1; + left.mX2 = left.mX1 + dx; + left.mY2 = left.mY1 + dy; + + right.mX1 = left.mX2; + right.mY1 = left.mY2; + right.mX2 = mX2; + right.mY2 = mY2; +} + +#endif //VLINE_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vmatrix.cpp b/vendor/github.com/Benau/go_rlottie/vector_vmatrix.cpp new file mode 100644 index 00000000..a06ad1b0 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vmatrix.cpp @@ -0,0 +1,684 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vmatrix.h" +#include "vector_vglobal.h" +#include <cassert> +#include <cmath> + +V_BEGIN_NAMESPACE + +/* m11 m21 mtx + * m12 m22 mty + * m13 m23 m33 + */ + +inline float VMatrix::determinant() const +{ + return m11 * (m33 * m22 - mty * m23) - m21 * (m33 * m12 - mty * m13) + + mtx * (m23 * m12 - m22 * m13); +} + +bool VMatrix::isAffine() const +{ + return type() < MatrixType::Project; +} + +bool VMatrix::isIdentity() const +{ + return type() == MatrixType::None; +} + +bool VMatrix::isInvertible() const +{ + return !vIsZero(determinant()); +} + +bool VMatrix::isScaling() const +{ + return type() >= MatrixType::Scale; +} +bool VMatrix::isRotating() const +{ + return type() >= MatrixType::Rotate; +} + +bool VMatrix::isTranslating() const +{ + return type() >= MatrixType::Translate; +} + +VMatrix &VMatrix::operator*=(float num) +{ + if (num == 1.) return *this; + + m11 *= num; + m12 *= num; + m13 *= num; + m21 *= num; + m22 *= num; + m23 *= num; + mtx *= num; + mty *= num; + m33 *= num; + if (dirty < MatrixType::Scale) dirty = MatrixType::Scale; + + return *this; +} + +VMatrix &VMatrix::operator/=(float div) +{ + if (div == 0) return *this; + + div = 1 / div; + return operator*=(div); +} + +VMatrix::MatrixType VMatrix::type() const +{ + if (dirty == MatrixType::None || dirty < mType) return mType; + + switch (dirty) { + case MatrixType::Project: + if (!vIsZero(m13) || !vIsZero(m23) || !vIsZero(m33 - 1)) { + mType = MatrixType::Project; + break; + } + VECTOR_FALLTHROUGH + case MatrixType::Shear: + case MatrixType::Rotate: + if (!vIsZero(m12) || !vIsZero(m21)) { + const float dot = m11 * m12 + m21 * m22; + if (vIsZero(dot)) + mType = MatrixType::Rotate; + else + mType = MatrixType::Shear; + break; + } + VECTOR_FALLTHROUGH + case MatrixType::Scale: + if (!vIsZero(m11 - 1) || !vIsZero(m22 - 1)) { + mType = MatrixType::Scale; + break; + } + VECTOR_FALLTHROUGH + case MatrixType::Translate: + if (!vIsZero(mtx) || !vIsZero(mty)) { + mType = MatrixType::Translate; + break; + } + VECTOR_FALLTHROUGH + case MatrixType::None: + mType = MatrixType::None; + break; + } + + dirty = MatrixType::None; + return mType; +} + +VMatrix &VMatrix::translate(float dx, float dy) +{ + if (dx == 0 && dy == 0) return *this; + + switch (type()) { + case MatrixType::None: + mtx = dx; + mty = dy; + break; + case MatrixType::Translate: + mtx += dx; + mty += dy; + break; + case MatrixType::Scale: + mtx += dx * m11; + mty += dy * m22; + break; + case MatrixType::Project: + m33 += dx * m13 + dy * m23; + VECTOR_FALLTHROUGH + case MatrixType::Shear: + case MatrixType::Rotate: + mtx += dx * m11 + dy * m21; + mty += dy * m22 + dx * m12; + break; + } + if (dirty < MatrixType::Translate) dirty = MatrixType::Translate; + return *this; +} + +VMatrix &VMatrix::scale(float sx, float sy) +{ + if (sx == 1 && sy == 1) return *this; + + switch (type()) { + case MatrixType::None: + case MatrixType::Translate: + m11 = sx; + m22 = sy; + break; + case MatrixType::Project: + m13 *= sx; + m23 *= sy; + VECTOR_FALLTHROUGH + case MatrixType::Rotate: + case MatrixType::Shear: + m12 *= sx; + m21 *= sy; + VECTOR_FALLTHROUGH + case MatrixType::Scale: + m11 *= sx; + m22 *= sy; + break; + } + if (dirty < MatrixType::Scale) dirty = MatrixType::Scale; + return *this; +} + +VMatrix &VMatrix::shear(float sh, float sv) +{ + if (sh == 0 && sv == 0) return *this; + + switch (type()) { + case MatrixType::None: + case MatrixType::Translate: + m12 = sv; + m21 = sh; + break; + case MatrixType::Scale: + m12 = sv * m22; + m21 = sh * m11; + break; + case MatrixType::Project: { + float tm13 = sv * m23; + float tm23 = sh * m13; + m13 += tm13; + m23 += tm23; + VECTOR_FALLTHROUGH + } + case MatrixType::Rotate: + case MatrixType::Shear: { + float tm11 = sv * m21; + float tm22 = sh * m12; + float tm12 = sv * m22; + float tm21 = sh * m11; + m11 += tm11; + m12 += tm12; + m21 += tm21; + m22 += tm22; + break; + } + } + if (dirty < MatrixType::Shear) dirty = MatrixType::Shear; + return *this; +} + +static const float deg2rad = float(0.017453292519943295769); // pi/180 +static const float inv_dist_to_plane = 1. / 1024.; + +VMatrix &VMatrix::rotate(float a, Axis axis) +{ + if (a == 0) return *this; + + float sina = 0; + float cosa = 0; + if (a == 90. || a == -270.) + sina = 1.; + else if (a == 270. || a == -90.) + sina = -1.; + else if (a == 180.) + cosa = -1.; + else { + float b = deg2rad * a; // convert to radians + sina = std::sin(b); // fast and convenient + cosa = std::cos(b); + } + + if (axis == Axis::Z) { + switch (type()) { + case MatrixType::None: + case MatrixType::Translate: + m11 = cosa; + m12 = sina; + m21 = -sina; + m22 = cosa; + break; + case MatrixType::Scale: { + float tm11 = cosa * m11; + float tm12 = sina * m22; + float tm21 = -sina * m11; + float tm22 = cosa * m22; + m11 = tm11; + m12 = tm12; + m21 = tm21; + m22 = tm22; + break; + } + case MatrixType::Project: { + float tm13 = cosa * m13 + sina * m23; + float tm23 = -sina * m13 + cosa * m23; + m13 = tm13; + m23 = tm23; + VECTOR_FALLTHROUGH + } + case MatrixType::Rotate: + case MatrixType::Shear: { + float tm11 = cosa * m11 + sina * m21; + float tm12 = cosa * m12 + sina * m22; + float tm21 = -sina * m11 + cosa * m21; + float tm22 = -sina * m12 + cosa * m22; + m11 = tm11; + m12 = tm12; + m21 = tm21; + m22 = tm22; + break; + } + } + if (dirty < MatrixType::Rotate) dirty = MatrixType::Rotate; + } else { + VMatrix result; + if (axis == Axis::Y) { + result.m11 = cosa; + result.m13 = -sina * inv_dist_to_plane; + } else { + result.m22 = cosa; + result.m23 = -sina * inv_dist_to_plane; + } + result.mType = MatrixType::Project; + *this = result * *this; + } + + return *this; +} + +VMatrix VMatrix::operator*(const VMatrix &m) const +{ + const MatrixType otherType = m.type(); + if (otherType == MatrixType::None) return *this; + + const MatrixType thisType = type(); + if (thisType == MatrixType::None) return m; + + VMatrix t; + MatrixType type = vMax(thisType, otherType); + switch (type) { + case MatrixType::None: + break; + case MatrixType::Translate: + t.mtx = mtx + m.mtx; + t.mty += mty + m.mty; + break; + case MatrixType::Scale: { + float m11v = m11 * m.m11; + float m22v = m22 * m.m22; + + float m31v = mtx * m.m11 + m.mtx; + float m32v = mty * m.m22 + m.mty; + + t.m11 = m11v; + t.m22 = m22v; + t.mtx = m31v; + t.mty = m32v; + break; + } + case MatrixType::Rotate: + case MatrixType::Shear: { + float m11v = m11 * m.m11 + m12 * m.m21; + float m12v = m11 * m.m12 + m12 * m.m22; + + float m21v = m21 * m.m11 + m22 * m.m21; + float m22v = m21 * m.m12 + m22 * m.m22; + + float m31v = mtx * m.m11 + mty * m.m21 + m.mtx; + float m32v = mtx * m.m12 + mty * m.m22 + m.mty; + + t.m11 = m11v; + t.m12 = m12v; + t.m21 = m21v; + t.m22 = m22v; + t.mtx = m31v; + t.mty = m32v; + break; + } + case MatrixType::Project: { + float m11v = m11 * m.m11 + m12 * m.m21 + m13 * m.mtx; + float m12v = m11 * m.m12 + m12 * m.m22 + m13 * m.mty; + float m13v = m11 * m.m13 + m12 * m.m23 + m13 * m.m33; + + float m21v = m21 * m.m11 + m22 * m.m21 + m23 * m.mtx; + float m22v = m21 * m.m12 + m22 * m.m22 + m23 * m.mty; + float m23v = m21 * m.m13 + m22 * m.m23 + m23 * m.m33; + + float m31v = mtx * m.m11 + mty * m.m21 + m33 * m.mtx; + float m32v = mtx * m.m12 + mty * m.m22 + m33 * m.mty; + float m33v = mtx * m.m13 + mty * m.m23 + m33 * m.m33; + + t.m11 = m11v; + t.m12 = m12v; + t.m13 = m13v; + t.m21 = m21v; + t.m22 = m22v; + t.m23 = m23v; + t.mtx = m31v; + t.mty = m32v; + t.m33 = m33v; + } + } + + t.dirty = type; + t.mType = type; + + return t; +} + +VMatrix &VMatrix::operator*=(const VMatrix &o) +{ + const MatrixType otherType = o.type(); + if (otherType == MatrixType::None) return *this; + + const MatrixType thisType = type(); + if (thisType == MatrixType::None) return operator=(o); + + MatrixType t = vMax(thisType, otherType); + switch (t) { + case MatrixType::None: + break; + case MatrixType::Translate: + mtx += o.mtx; + mty += o.mty; + break; + case MatrixType::Scale: { + float m11v = m11 * o.m11; + float m22v = m22 * o.m22; + + float m31v = mtx * o.m11 + o.mtx; + float m32v = mty * o.m22 + o.mty; + + m11 = m11v; + m22 = m22v; + mtx = m31v; + mty = m32v; + break; + } + case MatrixType::Rotate: + case MatrixType::Shear: { + float m11v = m11 * o.m11 + m12 * o.m21; + float m12v = m11 * o.m12 + m12 * o.m22; + + float m21v = m21 * o.m11 + m22 * o.m21; + float m22v = m21 * o.m12 + m22 * o.m22; + + float m31v = mtx * o.m11 + mty * o.m21 + o.mtx; + float m32v = mtx * o.m12 + mty * o.m22 + o.mty; + + m11 = m11v; + m12 = m12v; + m21 = m21v; + m22 = m22v; + mtx = m31v; + mty = m32v; + break; + } + case MatrixType::Project: { + float m11v = m11 * o.m11 + m12 * o.m21 + m13 * o.mtx; + float m12v = m11 * o.m12 + m12 * o.m22 + m13 * o.mty; + float m13v = m11 * o.m13 + m12 * o.m23 + m13 * o.m33; + + float m21v = m21 * o.m11 + m22 * o.m21 + m23 * o.mtx; + float m22v = m21 * o.m12 + m22 * o.m22 + m23 * o.mty; + float m23v = m21 * o.m13 + m22 * o.m23 + m23 * o.m33; + + float m31v = mtx * o.m11 + mty * o.m21 + m33 * o.mtx; + float m32v = mtx * o.m12 + mty * o.m22 + m33 * o.mty; + float m33v = mtx * o.m13 + mty * o.m23 + m33 * o.m33; + + m11 = m11v; + m12 = m12v; + m13 = m13v; + m21 = m21v; + m22 = m22v; + m23 = m23v; + mtx = m31v; + mty = m32v; + m33 = m33v; + } + } + + dirty = t; + mType = t; + + return *this; +} + +VMatrix VMatrix::adjoint() const +{ + float h11, h12, h13, h21, h22, h23, h31, h32, h33; + h11 = m22 * m33 - m23 * mty; + h21 = m23 * mtx - m21 * m33; + h31 = m21 * mty - m22 * mtx; + h12 = m13 * mty - m12 * m33; + h22 = m11 * m33 - m13 * mtx; + h32 = m12 * mtx - m11 * mty; + h13 = m12 * m23 - m13 * m22; + h23 = m13 * m21 - m11 * m23; + h33 = m11 * m22 - m12 * m21; + + VMatrix res; + res.m11 = h11; + res.m12 = h12; + res.m13 = h13; + res.m21 = h21; + res.m22 = h22; + res.m23 = h23; + res.mtx = h31; + res.mty = h32; + res.m33 = h33; + res.mType = MatrixType::None; + res.dirty = MatrixType::Project; + + return res; +} + +VMatrix VMatrix::inverted(bool *invertible) const +{ + VMatrix invert; + bool inv = true; + + switch (type()) { + case MatrixType::None: + break; + case MatrixType::Translate: + invert.mtx = -mtx; + invert.mty = -mty; + break; + case MatrixType::Scale: + inv = !vIsZero(m11); + inv &= !vIsZero(m22); + if (inv) { + invert.m11 = 1.0f / m11; + invert.m22 = 1.0f / m22; + invert.mtx = -mtx * invert.m11; + invert.mty = -mty * invert.m22; + } + break; + default: + // general case + float det = determinant(); + inv = !vIsZero(det); + if (inv) invert = (adjoint() /= det); + // TODO Test above line + break; + } + + if (invertible) *invertible = inv; + + if (inv) { + // inverting doesn't change the type + invert.mType = mType; + invert.dirty = dirty; + } + + return invert; +} + +bool VMatrix::operator==(const VMatrix &o) const +{ + return fuzzyCompare(o); +} + +bool VMatrix::operator!=(const VMatrix &o) const +{ + return !operator==(o); +} + +bool VMatrix::fuzzyCompare(const VMatrix &o) const +{ + return vCompare(m11, o.m11) && vCompare(m12, o.m12) && + vCompare(m21, o.m21) && vCompare(m22, o.m22) && + vCompare(mtx, o.mtx) && vCompare(mty, o.mty); +} + +#define V_NEAR_CLIP 0.000001f +#ifdef MAP +#undef MAP +#endif +#define MAP(x, y, nx, ny) \ + do { \ + float FX_ = x; \ + float FY_ = y; \ + switch (t) { \ + case MatrixType::None: \ + nx = FX_; \ + ny = FY_; \ + break; \ + case MatrixType::Translate: \ + nx = FX_ + mtx; \ + ny = FY_ + mty; \ + break; \ + case MatrixType::Scale: \ + nx = m11 * FX_ + mtx; \ + ny = m22 * FY_ + mty; \ + break; \ + case MatrixType::Rotate: \ + case MatrixType::Shear: \ + case MatrixType::Project: \ + nx = m11 * FX_ + m21 * FY_ + mtx; \ + ny = m12 * FX_ + m22 * FY_ + mty; \ + if (t == MatrixType::Project) { \ + float w = (m13 * FX_ + m23 * FY_ + m33); \ + if (w < V_NEAR_CLIP) w = V_NEAR_CLIP; \ + w = 1. / w; \ + nx *= w; \ + ny *= w; \ + } \ + } \ + } while (0) + +VRect VMatrix::map(const VRect &rect) const +{ + VMatrix::MatrixType t = type(); + if (t <= MatrixType::Translate) + return rect.translated(std::lround(mtx), std::lround(mty)); + + if (t <= MatrixType::Scale) { + int x = std::lround(m11 * rect.x() + mtx); + int y = std::lround(m22 * rect.y() + mty); + int w = std::lround(m11 * rect.width()); + int h = std::lround(m22 * rect.height()); + if (w < 0) { + w = -w; + x -= w; + } + if (h < 0) { + h = -h; + y -= h; + } + return {x, y, w, h}; + } else if (t < MatrixType::Project) { + // see mapToPolygon for explanations of the algorithm. + float x = 0, y = 0; + MAP(rect.left(), rect.top(), x, y); + float xmin = x; + float ymin = y; + float xmax = x; + float ymax = y; + MAP(rect.right() + 1, rect.top(), x, y); + xmin = vMin(xmin, x); + ymin = vMin(ymin, y); + xmax = vMax(xmax, x); + ymax = vMax(ymax, y); + MAP(rect.right() + 1, rect.bottom() + 1, x, y); + xmin = vMin(xmin, x); + ymin = vMin(ymin, y); + xmax = vMax(xmax, x); + ymax = vMax(ymax, y); + MAP(rect.left(), rect.bottom() + 1, x, y); + xmin = vMin(xmin, x); + ymin = vMin(ymin, y); + xmax = vMax(xmax, x); + ymax = vMax(ymax, y); + return VRect(std::lround(xmin), std::lround(ymin), + std::lround(xmax) - std::lround(xmin), + std::lround(ymax) - std::lround(ymin)); + } else { + // Not supported + assert(0); + return {}; + } +} + +VPointF VMatrix::map(const VPointF &p) const +{ + float fx = p.x(); + float fy = p.y(); + + float x = 0, y = 0; + + VMatrix::MatrixType t = type(); + switch (t) { + case MatrixType::None: + x = fx; + y = fy; + break; + case MatrixType::Translate: + x = fx + mtx; + y = fy + mty; + break; + case MatrixType::Scale: + x = m11 * fx + mtx; + y = m22 * fy + mty; + break; + case MatrixType::Rotate: + case MatrixType::Shear: + case MatrixType::Project: + x = m11 * fx + m21 * fy + mtx; + y = m12 * fx + m22 * fy + mty; + if (t == MatrixType::Project) { + float w = 1.0f / (m13 * fx + m23 * fy + m33); + x *= w; + y *= w; + } + } + return {x, y}; +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vmatrix.h b/vendor/github.com/Benau/go_rlottie/vector_vmatrix.h new file mode 100644 index 00000000..ee3ad2b5 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vmatrix.h @@ -0,0 +1,116 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VMATRIX_H +#define VMATRIX_H +#include "vector_vglobal.h" +#include "vector_vpoint.h" +#include "vector_vrect.h" + +V_BEGIN_NAMESPACE + +struct VMatrixData; +class VMatrix { +public: + enum class Axis { X, Y, Z }; + enum class MatrixType: unsigned char { + None = 0x00, + Translate = 0x01, + Scale = 0x02, + Rotate = 0x04, + Shear = 0x08, + Project = 0x10 + }; + VMatrix() = default; + bool isAffine() const; + bool isIdentity() const; + bool isInvertible() const; + bool isScaling() const; + bool isRotating() const; + bool isTranslating() const; + MatrixType type() const; + inline float determinant() const; + + float m_11() const { return m11;} + float m_12() const { return m12;} + float m_13() const { return m13;} + + float m_21() const { return m21;} + float m_22() const { return m22;} + float m_23() const { return m23;} + + float m_tx() const { return mtx;} + float m_ty() const { return mty;} + float m_33() const { return m33;} + + VMatrix &translate(VPointF pos) { return translate(pos.x(), pos.y()); } + VMatrix &translate(float dx, float dy); + VMatrix &scale(VPointF s) { return scale(s.x(), s.y()); } + VMatrix &scale(float sx, float sy); + VMatrix &shear(float sh, float sv); + VMatrix &rotate(float a, Axis axis = VMatrix::Axis::Z); + VMatrix &rotateRadians(float a, Axis axis = VMatrix::Axis::Z); + + VPointF map(const VPointF &p) const; + inline VPointF map(float x, float y) const; + VRect map(const VRect &r) const; + + V_REQUIRED_RESULT VMatrix inverted(bool *invertible = nullptr) const; + V_REQUIRED_RESULT VMatrix adjoint() const; + + VMatrix operator*(const VMatrix &o) const; + VMatrix & operator*=(const VMatrix &); + VMatrix & operator*=(float mul); + VMatrix & operator/=(float div); + bool operator==(const VMatrix &) const; + bool operator!=(const VMatrix &) const; + bool fuzzyCompare(const VMatrix &) const; + float scale() const; +private: + friend struct VSpanData; + float m11{1}, m12{0}, m13{0}; + float m21{0}, m22{1}, m23{0}; + float mtx{0}, mty{0}, m33{1}; + mutable MatrixType mType{MatrixType::None}; + mutable MatrixType dirty{MatrixType::None}; +}; + +inline float VMatrix::scale() const +{ + constexpr float SQRT_2 = 1.41421f; + VPointF p1(0, 0); + VPointF p2(SQRT_2, SQRT_2); + p1 = map(p1); + p2 = map(p2); + VPointF final = p2 - p1; + + return std::sqrt(final.x() * final.x() + final.y() * final.y()) / 2.0f; +} + +inline VPointF VMatrix::map(float x, float y) const +{ + return map(VPointF(x, y)); +} + +V_END_NAMESPACE + +#endif // VMATRIX_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vpainter.cpp b/vendor/github.com/Benau/go_rlottie/vector_vpainter.cpp new file mode 100644 index 00000000..bcabc554 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vpainter.cpp @@ -0,0 +1,172 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vpainter.h" +#include <algorithm> + + +V_BEGIN_NAMESPACE + + +void VPainter::drawRle(const VPoint &, const VRle &rle) +{ + if (rle.empty()) return; + // mSpanData.updateSpanFunc(); + + if (!mSpanData.mUnclippedBlendFunc) return; + + // do draw after applying clip. + rle.intersect(mSpanData.clipRect(), mSpanData.mUnclippedBlendFunc, + &mSpanData); +} + +void VPainter::drawRle(const VRle &rle, const VRle &clip) +{ + if (rle.empty() || clip.empty()) return; + + if (!mSpanData.mUnclippedBlendFunc) return; + + rle.intersect(clip, mSpanData.mUnclippedBlendFunc, &mSpanData); +} + +static void fillRect(const VRect &r, VSpanData *data) +{ + auto x1 = std::max(r.x(), 0); + auto x2 = std::min(r.x() + r.width(), data->mDrawableSize.width()); + auto y1 = std::max(r.y(), 0); + auto y2 = std::min(r.y() + r.height(), data->mDrawableSize.height()); + + if (x2 <= x1 || y2 <= y1) return; + + const int nspans = 256; + VRle::Span spans[nspans]; + + int y = y1; + while (y < y2) { + int n = std::min(nspans, y2 - y); + int i = 0; + while (i < n) { + spans[i].x = short(x1); + spans[i].len = ushort(x2 - x1); + spans[i].y = short(y + i); + spans[i].coverage = 255; + ++i; + } + + data->mUnclippedBlendFunc(n, spans, data); + y += n; + } +} + +void VPainter::drawBitmapUntransform(const VRect & target, + const VBitmap &bitmap, + const VRect & source, + uint8_t const_alpha) +{ + mSpanData.initTexture(&bitmap, const_alpha, source); + if (!mSpanData.mUnclippedBlendFunc) return; + + // update translation matrix for source texture. + mSpanData.dx = float(target.x() - source.x()); + mSpanData.dy = float(target.y() - source.y()); + + fillRect(target, &mSpanData); +} + +VPainter::VPainter(VBitmap *buffer) +{ + begin(buffer); +} +bool VPainter::begin(VBitmap *buffer) +{ + mBuffer.prepare(buffer); + mSpanData.init(&mBuffer); + // TODO find a better api to clear the surface + mBuffer.clear(); + return true; +} +void VPainter::end() {} + +void VPainter::setDrawRegion(const VRect ®ion) +{ + mSpanData.setDrawRegion(region); +} + +void VPainter::setBrush(const VBrush &brush) +{ + mSpanData.setup(brush); +} + +void VPainter::setBlendMode(BlendMode mode) +{ + mSpanData.mBlendMode = mode; +} + +VRect VPainter::clipBoundingRect() const +{ + return mSpanData.clipRect(); +} + +void VPainter::drawBitmap(const VPoint &point, const VBitmap &bitmap, + const VRect &source, uint8_t const_alpha) +{ + if (!bitmap.valid()) return; + + drawBitmap(VRect(point, bitmap.size()), + bitmap, source, const_alpha); +} + +void VPainter::drawBitmap(const VRect &target, const VBitmap &bitmap, + const VRect &source, uint8_t const_alpha) +{ + if (!bitmap.valid()) return; + + // clear any existing brush data. + setBrush(VBrush()); + + if (target.size() == source.size()) { + drawBitmapUntransform(target, bitmap, source, const_alpha); + } else { + // @TODO scaling + } +} + +void VPainter::drawBitmap(const VPoint &point, const VBitmap &bitmap, + uint8_t const_alpha) +{ + if (!bitmap.valid()) return; + + drawBitmap(VRect(point, bitmap.size()), + bitmap, bitmap.rect(), + const_alpha); +} + +void VPainter::drawBitmap(const VRect &rect, const VBitmap &bitmap, + uint8_t const_alpha) +{ + if (!bitmap.valid()) return; + + drawBitmap(rect, bitmap, bitmap.rect(), + const_alpha); +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vpainter.h b/vendor/github.com/Benau/go_rlottie/vector_vpainter.h new file mode 100644 index 00000000..01cd99a5 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vpainter.h @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VPAINTER_H +#define VPAINTER_H + +#include "vector_vbrush.h" +#include "vector_vpoint.h" +#include "vector_vrle.h" +#include "vector_vdrawhelper.h" + +V_BEGIN_NAMESPACE + +class VBitmap; +class VPainter { +public: + VPainter() = default; + explicit VPainter(VBitmap *buffer); + bool begin(VBitmap *buffer); + void end(); + void setDrawRegion(const VRect ®ion); // sub surface rendering area. + void setBrush(const VBrush &brush); + void setBlendMode(BlendMode mode); + void drawRle(const VPoint &pos, const VRle &rle); + void drawRle(const VRle &rle, const VRle &clip); + VRect clipBoundingRect() const; + + void drawBitmap(const VPoint &point, const VBitmap &bitmap, const VRect &source, uint8_t const_alpha = 255); + void drawBitmap(const VRect &target, const VBitmap &bitmap, const VRect &source, uint8_t const_alpha = 255); + void drawBitmap(const VPoint &point, const VBitmap &bitmap, uint8_t const_alpha = 255); + void drawBitmap(const VRect &rect, const VBitmap &bitmap, uint8_t const_alpha = 255); +private: + void drawBitmapUntransform(const VRect &target, const VBitmap &bitmap, + const VRect &source, uint8_t const_alpha); + VRasterBuffer mBuffer; + VSpanData mSpanData; +}; + +V_END_NAMESPACE + +#endif // VPAINTER_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vpath.cpp b/vendor/github.com/Benau/go_rlottie/vector_vpath.cpp new file mode 100644 index 00000000..470c6d42 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vpath.cpp @@ -0,0 +1,709 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "vector_vpath.h" +#include <cassert> +#include <iterator> +#include <vector> +#include "vector_vbezier.h" +#include "vector_vdebug.h" +#include "vector_vline.h" +#include "vector_vrect.h" + +V_BEGIN_NAMESPACE + +void VPath::VPathData::transform(const VMatrix &m) +{ + for (auto &i : m_points) { + i = m.map(i); + } + mLengthDirty = true; +} + +float VPath::VPathData::length() const +{ + if (!mLengthDirty) return mLength; + + mLengthDirty = false; + mLength = 0.0; + + size_t i = 0; + for (auto e : m_elements) { + switch (e) { + case VPath::Element::MoveTo: + i++; + break; + case VPath::Element::LineTo: { + mLength += VLine(m_points[i - 1], m_points[i]).length(); + i++; + break; + } + case VPath::Element::CubicTo: { + mLength += VBezier::fromPoints(m_points[i - 1], m_points[i], + m_points[i + 1], m_points[i + 2]) + .length(); + i += 3; + break; + } + case VPath::Element::Close: + break; + } + } + + return mLength; +} + +void VPath::VPathData::checkNewSegment() +{ + if (mNewSegment) { + moveTo(0, 0); + mNewSegment = false; + } +} + +void VPath::VPathData::moveTo(float x, float y) +{ + mStartPoint = {x, y}; + mNewSegment = false; + m_elements.emplace_back(VPath::Element::MoveTo); + m_points.emplace_back(x, y); + m_segments++; + mLengthDirty = true; +} + +void VPath::VPathData::lineTo(float x, float y) +{ + checkNewSegment(); + m_elements.emplace_back(VPath::Element::LineTo); + m_points.emplace_back(x, y); + mLengthDirty = true; +} + +void VPath::VPathData::cubicTo(float cx1, float cy1, float cx2, float cy2, + float ex, float ey) +{ + checkNewSegment(); + m_elements.emplace_back(VPath::Element::CubicTo); + m_points.emplace_back(cx1, cy1); + m_points.emplace_back(cx2, cy2); + m_points.emplace_back(ex, ey); + mLengthDirty = true; +} + +void VPath::VPathData::close() +{ + if (empty()) return; + + const VPointF &lastPt = m_points.back(); + if (!fuzzyCompare(mStartPoint, lastPt)) { + lineTo(mStartPoint.x(), mStartPoint.y()); + } + m_elements.push_back(VPath::Element::Close); + mNewSegment = true; + mLengthDirty = true; +} + +void VPath::VPathData::reset() +{ + if (empty()) return; + + m_elements.clear(); + m_points.clear(); + m_segments = 0; + mLength = 0; + mLengthDirty = false; +} + +size_t VPath::VPathData::segments() const +{ + return m_segments; +} + +void VPath::VPathData::reserve(size_t pts, size_t elms) +{ + if (m_points.capacity() < m_points.size() + pts) + m_points.reserve(m_points.size() + pts); + if (m_elements.capacity() < m_elements.size() + elms) + m_elements.reserve(m_elements.size() + elms); +} + +static VPointF curvesForArc(const VRectF &, float, float, VPointF *, size_t *); +static constexpr float PATH_KAPPA = 0.5522847498f; +static constexpr float K_PI = 3.141592f; + +void VPath::VPathData::arcTo(const VRectF &rect, float startAngle, + float sweepLength, bool forceMoveTo) +{ + size_t point_count = 0; + VPointF pts[15]; + VPointF curve_start = + curvesForArc(rect, startAngle, sweepLength, pts, &point_count); + + reserve(point_count + 1, point_count / 3 + 1); + if (empty() || forceMoveTo) { + moveTo(curve_start.x(), curve_start.y()); + } else { + lineTo(curve_start.x(), curve_start.y()); + } + for (size_t i = 0; i < point_count; i += 3) { + cubicTo(pts[i].x(), pts[i].y(), pts[i + 1].x(), pts[i + 1].y(), + pts[i + 2].x(), pts[i + 2].y()); + } +} + +void VPath::VPathData::addCircle(float cx, float cy, float radius, + VPath::Direction dir) +{ + addOval(VRectF(cx - radius, cy - radius, 2 * radius, 2 * radius), dir); +} + +void VPath::VPathData::addOval(const VRectF &rect, VPath::Direction dir) +{ + if (rect.empty()) return; + + float x = rect.x(); + float y = rect.y(); + + float w = rect.width(); + float w2 = rect.width() / 2; + float w2k = w2 * PATH_KAPPA; + + float h = rect.height(); + float h2 = rect.height() / 2; + float h2k = h2 * PATH_KAPPA; + + reserve(13, 6); // 1Move + 4Cubic + 1Close + if (dir == VPath::Direction::CW) { + // moveto 12 o'clock. + moveTo(x + w2, y); + // 12 -> 3 o'clock + cubicTo(x + w2 + w2k, y, x + w, y + h2 - h2k, x + w, y + h2); + // 3 -> 6 o'clock + cubicTo(x + w, y + h2 + h2k, x + w2 + w2k, y + h, x + w2, y + h); + // 6 -> 9 o'clock + cubicTo(x + w2 - w2k, y + h, x, y + h2 + h2k, x, y + h2); + // 9 -> 12 o'clock + cubicTo(x, y + h2 - h2k, x + w2 - w2k, y, x + w2, y); + } else { + // moveto 12 o'clock. + moveTo(x + w2, y); + // 12 -> 9 o'clock + cubicTo(x + w2 - w2k, y, x, y + h2 - h2k, x, y + h2); + // 9 -> 6 o'clock + cubicTo(x, y + h2 + h2k, x + w2 - w2k, y + h, x + w2, y + h); + // 6 -> 3 o'clock + cubicTo(x + w2 + w2k, y + h, x + w, y + h2 + h2k, x + w, y + h2); + // 3 -> 12 o'clock + cubicTo(x + w, y + h2 - h2k, x + w2 + w2k, y, x + w2, y); + } + close(); +} + +void VPath::VPathData::addRect(const VRectF &rect, VPath::Direction dir) +{ + float x = rect.x(); + float y = rect.y(); + float w = rect.width(); + float h = rect.height(); + + if (vCompare(w, 0.f) && vCompare(h, 0.f)) return; + + reserve(5, 6); // 1Move + 4Line + 1Close + if (dir == VPath::Direction::CW) { + moveTo(x + w, y); + lineTo(x + w, y + h); + lineTo(x, y + h); + lineTo(x, y); + close(); + } else { + moveTo(x + w, y); + lineTo(x, y); + lineTo(x, y + h); + lineTo(x + w, y + h); + close(); + } +} + +void VPath::VPathData::addRoundRect(const VRectF &rect, float roundness, + VPath::Direction dir) +{ + if (2 * roundness > rect.width()) roundness = rect.width() / 2.0f; + if (2 * roundness > rect.height()) roundness = rect.height() / 2.0f; + addRoundRect(rect, roundness, roundness, dir); +} + +void VPath::VPathData::addRoundRect(const VRectF &rect, float rx, float ry, + VPath::Direction dir) +{ + if (vCompare(rx, 0.f) || vCompare(ry, 0.f)) { + addRect(rect, dir); + return; + } + + float x = rect.x(); + float y = rect.y(); + float w = rect.width(); + float h = rect.height(); + // clamp the rx and ry radius value. + rx = 2 * rx; + ry = 2 * ry; + if (rx > w) rx = w; + if (ry > h) ry = h; + + reserve(17, 10); // 1Move + 4Cubic + 1Close + if (dir == VPath::Direction::CW) { + moveTo(x + w, y + ry / 2.f); + arcTo(VRectF(x + w - rx, y + h - ry, rx, ry), 0, -90, false); + arcTo(VRectF(x, y + h - ry, rx, ry), -90, -90, false); + arcTo(VRectF(x, y, rx, ry), -180, -90, false); + arcTo(VRectF(x + w - rx, y, rx, ry), -270, -90, false); + close(); + } else { + moveTo(x + w, y + ry / 2.f); + arcTo(VRectF(x + w - rx, y, rx, ry), 0, 90, false); + arcTo(VRectF(x, y, rx, ry), 90, 90, false); + arcTo(VRectF(x, y + h - ry, rx, ry), 180, 90, false); + arcTo(VRectF(x + w - rx, y + h - ry, rx, ry), 270, 90, false); + close(); + } +} + +static float tForArcAngle(float angle); +void findEllipseCoords(const VRectF &r, float angle, float length, + VPointF *startPoint, VPointF *endPoint) +{ + if (r.empty()) { + if (startPoint) *startPoint = VPointF(); + if (endPoint) *endPoint = VPointF(); + return; + } + + float w2 = r.width() / 2; + float h2 = r.height() / 2; + + float angles[2] = {angle, angle + length}; + VPointF *points[2] = {startPoint, endPoint}; + + for (int i = 0; i < 2; ++i) { + if (!points[i]) continue; + + float theta = angles[i] - 360 * floorf(angles[i] / 360); + float t = theta / 90; + // truncate + int quadrant = int(t); + t -= quadrant; + + t = tForArcAngle(90 * t); + + // swap x and y? + if (quadrant & 1) t = 1 - t; + + float a, b, c, d; + VBezier::coefficients(t, a, b, c, d); + VPointF p(a + b + c * PATH_KAPPA, d + c + b * PATH_KAPPA); + + // left quadrants + if (quadrant == 1 || quadrant == 2) p.rx() = -p.x(); + + // top quadrants + if (quadrant == 0 || quadrant == 1) p.ry() = -p.y(); + + *points[i] = r.center() + VPointF(w2 * p.x(), h2 * p.y()); + } +} + +static float tForArcAngle(float angle) +{ + float radians, cos_angle, sin_angle, tc, ts, t; + + if (vCompare(angle, 0.f)) return 0; + if (vCompare(angle, 90.0f)) return 1; + + radians = (angle / 180) * K_PI; + + cos_angle = cosf(radians); + sin_angle = sinf(radians); + + // initial guess + tc = angle / 90; + + // do some iterations of newton's method to approximate cos_angle + // finds the zero of the function b.pointAt(tc).x() - cos_angle + tc -= ((((2 - 3 * PATH_KAPPA) * tc + 3 * (PATH_KAPPA - 1)) * tc) * tc + 1 - + cos_angle) // value + / (((6 - 9 * PATH_KAPPA) * tc + 6 * (PATH_KAPPA - 1)) * + tc); // derivative + tc -= ((((2 - 3 * PATH_KAPPA) * tc + 3 * (PATH_KAPPA - 1)) * tc) * tc + 1 - + cos_angle) // value + / (((6 - 9 * PATH_KAPPA) * tc + 6 * (PATH_KAPPA - 1)) * + tc); // derivative + + // initial guess + ts = tc; + // do some iterations of newton's method to approximate sin_angle + // finds the zero of the function b.pointAt(tc).y() - sin_angle + ts -= ((((3 * PATH_KAPPA - 2) * ts - 6 * PATH_KAPPA + 3) * ts + + 3 * PATH_KAPPA) * + ts - + sin_angle) / + (((9 * PATH_KAPPA - 6) * ts + 12 * PATH_KAPPA - 6) * ts + + 3 * PATH_KAPPA); + ts -= ((((3 * PATH_KAPPA - 2) * ts - 6 * PATH_KAPPA + 3) * ts + + 3 * PATH_KAPPA) * + ts - + sin_angle) / + (((9 * PATH_KAPPA - 6) * ts + 12 * PATH_KAPPA - 6) * ts + + 3 * PATH_KAPPA); + + // use the average of the t that best approximates cos_angle + // and the t that best approximates sin_angle + t = 0.5f * (tc + ts); + return t; +} + +// The return value is the starting point of the arc +static VPointF curvesForArc(const VRectF &rect, float startAngle, + float sweepLength, VPointF *curves, + size_t *point_count) +{ + if (rect.empty()) { + return {}; + } + + float x = rect.x(); + float y = rect.y(); + + float w = rect.width(); + float w2 = rect.width() / 2; + float w2k = w2 * PATH_KAPPA; + + float h = rect.height(); + float h2 = rect.height() / 2; + float h2k = h2 * PATH_KAPPA; + + VPointF points[16] = { + // start point + VPointF(x + w, y + h2), + + // 0 -> 270 degrees + VPointF(x + w, y + h2 + h2k), VPointF(x + w2 + w2k, y + h), + VPointF(x + w2, y + h), + + // 270 -> 180 degrees + VPointF(x + w2 - w2k, y + h), VPointF(x, y + h2 + h2k), + VPointF(x, y + h2), + + // 180 -> 90 degrees + VPointF(x, y + h2 - h2k), VPointF(x + w2 - w2k, y), VPointF(x + w2, y), + + // 90 -> 0 degrees + VPointF(x + w2 + w2k, y), VPointF(x + w, y + h2 - h2k), + VPointF(x + w, y + h2)}; + + if (sweepLength > 360) + sweepLength = 360; + else if (sweepLength < -360) + sweepLength = -360; + + // Special case fast paths + if (startAngle == 0.0f) { + if (vCompare(sweepLength, 360)) { + for (int i = 11; i >= 0; --i) curves[(*point_count)++] = points[i]; + return points[12]; + } else if (vCompare(sweepLength, -360)) { + for (int i = 1; i <= 12; ++i) curves[(*point_count)++] = points[i]; + return points[0]; + } + } + + int startSegment = int(floorf(startAngle / 90.0f)); + int endSegment = int(floorf((startAngle + sweepLength) / 90.0f)); + + float startT = (startAngle - startSegment * 90) / 90; + float endT = (startAngle + sweepLength - endSegment * 90) / 90; + + int delta = sweepLength > 0 ? 1 : -1; + if (delta < 0) { + startT = 1 - startT; + endT = 1 - endT; + } + + // avoid empty start segment + if (vIsZero(startT - float(1))) { + startT = 0; + startSegment += delta; + } + + // avoid empty end segment + if (vIsZero(endT)) { + endT = 1; + endSegment -= delta; + } + + startT = tForArcAngle(startT * 90); + endT = tForArcAngle(endT * 90); + + const bool splitAtStart = !vIsZero(startT); + const bool splitAtEnd = !vIsZero(endT - float(1)); + + const int end = endSegment + delta; + + // empty arc? + if (startSegment == end) { + const int quadrant = 3 - ((startSegment % 4) + 4) % 4; + const int j = 3 * quadrant; + return delta > 0 ? points[j + 3] : points[j]; + } + + VPointF startPoint, endPoint; + findEllipseCoords(rect, startAngle, sweepLength, &startPoint, &endPoint); + + for (int i = startSegment; i != end; i += delta) { + const int quadrant = 3 - ((i % 4) + 4) % 4; + const int j = 3 * quadrant; + + VBezier b; + if (delta > 0) + b = VBezier::fromPoints(points[j + 3], points[j + 2], points[j + 1], + points[j]); + else + b = VBezier::fromPoints(points[j], points[j + 1], points[j + 2], + points[j + 3]); + + // empty arc? + if (startSegment == endSegment && vCompare(startT, endT)) + return startPoint; + + if (i == startSegment) { + if (i == endSegment && splitAtEnd) + b = b.onInterval(startT, endT); + else if (splitAtStart) + b = b.onInterval(startT, 1); + } else if (i == endSegment && splitAtEnd) { + b = b.onInterval(0, endT); + } + + // push control points + curves[(*point_count)++] = b.pt2(); + curves[(*point_count)++] = b.pt3(); + curves[(*point_count)++] = b.pt4(); + } + + curves[*(point_count)-1] = endPoint; + + return startPoint; +} + +void VPath::VPathData::addPolystar(float points, float innerRadius, + float outerRadius, float innerRoundness, + float outerRoundness, float startAngle, + float cx, float cy, VPath::Direction dir) +{ + const static float POLYSTAR_MAGIC_NUMBER = 0.47829f / 0.28f; + float currentAngle = (startAngle - 90.0f) * K_PI / 180.0f; + float x; + float y; + float partialPointRadius = 0; + float anglePerPoint = (2.0f * K_PI / points); + float halfAnglePerPoint = anglePerPoint / 2.0f; + float partialPointAmount = points - floorf(points); + bool longSegment = false; + size_t numPoints = size_t(ceilf(points) * 2); + float angleDir = ((dir == VPath::Direction::CW) ? 1.0f : -1.0f); + bool hasRoundness = false; + + innerRoundness /= 100.0f; + outerRoundness /= 100.0f; + + if (!vCompare(partialPointAmount, 0)) { + currentAngle += + halfAnglePerPoint * (1.0f - partialPointAmount) * angleDir; + } + + if (!vCompare(partialPointAmount, 0)) { + partialPointRadius = + innerRadius + partialPointAmount * (outerRadius - innerRadius); + x = partialPointRadius * cosf(currentAngle); + y = partialPointRadius * sinf(currentAngle); + currentAngle += anglePerPoint * partialPointAmount / 2.0f * angleDir; + } else { + x = outerRadius * cosf(currentAngle); + y = outerRadius * sinf(currentAngle); + currentAngle += halfAnglePerPoint * angleDir; + } + + if (vIsZero(innerRoundness) && vIsZero(outerRoundness)) { + reserve(numPoints + 2, numPoints + 3); + } else { + reserve(numPoints * 3 + 2, numPoints + 3); + hasRoundness = true; + } + + moveTo(x + cx, y + cy); + + for (size_t i = 0; i < numPoints; i++) { + float radius = longSegment ? outerRadius : innerRadius; + float dTheta = halfAnglePerPoint; + if (!vIsZero(partialPointRadius) && i == numPoints - 2) { + dTheta = anglePerPoint * partialPointAmount / 2.0f; + } + if (!vIsZero(partialPointRadius) && i == numPoints - 1) { + radius = partialPointRadius; + } + float previousX = x; + float previousY = y; + x = radius * cosf(currentAngle); + y = radius * sinf(currentAngle); + + if (hasRoundness) { + float cp1Theta = + (atan2f(previousY, previousX) - K_PI / 2.0f * angleDir); + float cp1Dx = cosf(cp1Theta); + float cp1Dy = sinf(cp1Theta); + float cp2Theta = (atan2f(y, x) - K_PI / 2.0f * angleDir); + float cp2Dx = cosf(cp2Theta); + float cp2Dy = sinf(cp2Theta); + + float cp1Roundness = longSegment ? innerRoundness : outerRoundness; + float cp2Roundness = longSegment ? outerRoundness : innerRoundness; + float cp1Radius = longSegment ? innerRadius : outerRadius; + float cp2Radius = longSegment ? outerRadius : innerRadius; + + float cp1x = cp1Radius * cp1Roundness * POLYSTAR_MAGIC_NUMBER * + cp1Dx / points; + float cp1y = cp1Radius * cp1Roundness * POLYSTAR_MAGIC_NUMBER * + cp1Dy / points; + float cp2x = cp2Radius * cp2Roundness * POLYSTAR_MAGIC_NUMBER * + cp2Dx / points; + float cp2y = cp2Radius * cp2Roundness * POLYSTAR_MAGIC_NUMBER * + cp2Dy / points; + + if (!vIsZero(partialPointAmount) && + ((i == 0) || (i == numPoints - 1))) { + cp1x *= partialPointAmount; + cp1y *= partialPointAmount; + cp2x *= partialPointAmount; + cp2y *= partialPointAmount; + } + + cubicTo(previousX - cp1x + cx, previousY - cp1y + cy, x + cp2x + cx, + y + cp2y + cy, x + cx, y + cy); + } else { + lineTo(x + cx, y + cy); + } + + currentAngle += dTheta * angleDir; + longSegment = !longSegment; + } + + close(); +} + +void VPath::VPathData::addPolygon(float points, float radius, float roundness, + float startAngle, float cx, float cy, + VPath::Direction dir) +{ + // TODO: Need to support floating point number for number of points + const static float POLYGON_MAGIC_NUMBER = 0.25; + float currentAngle = (startAngle - 90.0f) * K_PI / 180.0f; + float x; + float y; + float anglePerPoint = 2.0f * K_PI / floorf(points); + size_t numPoints = size_t(floorf(points)); + float angleDir = ((dir == VPath::Direction::CW) ? 1.0f : -1.0f); + bool hasRoundness = false; + + roundness /= 100.0f; + + currentAngle = (currentAngle - 90.0f) * K_PI / 180.0f; + x = radius * cosf(currentAngle); + y = radius * sinf(currentAngle); + currentAngle += anglePerPoint * angleDir; + + if (vIsZero(roundness)) { + reserve(numPoints + 2, numPoints + 3); + } else { + reserve(numPoints * 3 + 2, numPoints + 3); + hasRoundness = true; + } + + moveTo(x + cx, y + cy); + + for (size_t i = 0; i < numPoints; i++) { + float previousX = x; + float previousY = y; + x = (radius * cosf(currentAngle)); + y = (radius * sinf(currentAngle)); + + if (hasRoundness) { + float cp1Theta = + (atan2f(previousY, previousX) - K_PI / 2.0f * angleDir); + float cp1Dx = cosf(cp1Theta); + float cp1Dy = sinf(cp1Theta); + float cp2Theta = atan2f(y, x) - K_PI / 2.0f * angleDir; + float cp2Dx = cosf(cp2Theta); + float cp2Dy = sinf(cp2Theta); + + float cp1x = radius * roundness * POLYGON_MAGIC_NUMBER * cp1Dx; + float cp1y = radius * roundness * POLYGON_MAGIC_NUMBER * cp1Dy; + float cp2x = radius * roundness * POLYGON_MAGIC_NUMBER * cp2Dx; + float cp2y = radius * roundness * POLYGON_MAGIC_NUMBER * cp2Dy; + + cubicTo(previousX - cp1x + cx, previousY - cp1y + cy, x + cp2x + cx, + y + cp2y + cy, x, y); + } else { + lineTo(x + cx, y + cy); + } + + currentAngle += anglePerPoint * angleDir; + } + + close(); +} + +void VPath::VPathData::addPath(const VPathData &path, const VMatrix *m) +{ + size_t segment = path.segments(); + + // make sure enough memory available + if (m_points.capacity() < m_points.size() + path.m_points.size()) + m_points.reserve(m_points.size() + path.m_points.size()); + + if (m_elements.capacity() < m_elements.size() + path.m_elements.size()) + m_elements.reserve(m_elements.size() + path.m_elements.size()); + + if (m) { + for (const auto &i : path.m_points) { + m_points.push_back(m->map(i)); + } + } else { + std::copy(path.m_points.begin(), path.m_points.end(), + back_inserter(m_points)); + } + + std::copy(path.m_elements.begin(), path.m_elements.end(), + back_inserter(m_elements)); + + m_segments += segment; + mLengthDirty = true; +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vpath.h b/vendor/github.com/Benau/go_rlottie/vector_vpath.h new file mode 100644 index 00000000..17d6687d --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vpath.h @@ -0,0 +1,285 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VPATH_H +#define VPATH_H +#include <vector> +#include "vector_vcowptr.h" +#include "vector_vmatrix.h" +#include "vector_vpoint.h" +#include "vector_vrect.h" + +V_BEGIN_NAMESPACE + +struct VPathData; +class VPath { +public: + enum class Direction { CCW, CW }; + + enum class Element : uchar { MoveTo, LineTo, CubicTo, Close }; + bool empty() const; + bool null() const; + void moveTo(const VPointF &p); + void moveTo(float x, float y); + void lineTo(const VPointF &p); + void lineTo(float x, float y); + void cubicTo(const VPointF &c1, const VPointF &c2, const VPointF &e); + void cubicTo(float c1x, float c1y, float c2x, float c2y, float ex, + float ey); + void arcTo(const VRectF &rect, float startAngle, float sweepLength, + bool forceMoveTo); + void close(); + void reset(); + void reserve(size_t pts, size_t elms); + size_t segments() const; + void addCircle(float cx, float cy, float radius, + VPath::Direction dir = Direction::CW); + void addOval(const VRectF &rect, VPath::Direction dir = Direction::CW); + void addRoundRect(const VRectF &rect, float rx, float ry, + VPath::Direction dir = Direction::CW); + void addRoundRect(const VRectF &rect, float roundness, + VPath::Direction dir = Direction::CW); + void addRect(const VRectF &rect, VPath::Direction dir = Direction::CW); + void addPolystar(float points, float innerRadius, float outerRadius, + float innerRoundness, float outerRoundness, + float startAngle, float cx, float cy, + VPath::Direction dir = Direction::CW); + void addPolygon(float points, float radius, float roundness, + float startAngle, float cx, float cy, + VPath::Direction dir = Direction::CW); + void addPath(const VPath &path); + void addPath(const VPath &path, const VMatrix &m); + void transform(const VMatrix &m); + float length() const; + const std::vector<VPath::Element> &elements() const; + const std::vector<VPointF> & points() const; + void clone(const VPath &srcPath); + bool unique() const { return d.unique();} + size_t refCount() const { return d.refCount();} + +private: + struct VPathData { + bool empty() const { return m_elements.empty(); } + bool null() const { return empty() && !m_elements.capacity();} + void moveTo(float x, float y); + void lineTo(float x, float y); + void cubicTo(float cx1, float cy1, float cx2, float cy2, float ex, float ey); + void close(); + void reset(); + void reserve(size_t, size_t); + void checkNewSegment(); + size_t segments() const; + void transform(const VMatrix &m); + float length() const; + void addRoundRect(const VRectF &, float, float, VPath::Direction); + void addRoundRect(const VRectF &, float, VPath::Direction); + void addRect(const VRectF &, VPath::Direction); + void arcTo(const VRectF &, float, float, bool); + void addCircle(float, float, float, VPath::Direction); + void addOval(const VRectF &, VPath::Direction); + void addPolystar(float points, float innerRadius, float outerRadius, + float innerRoundness, float outerRoundness, + float startAngle, float cx, float cy, + VPath::Direction dir = Direction::CW); + void addPolygon(float points, float radius, float roundness, + float startAngle, float cx, float cy, + VPath::Direction dir = Direction::CW); + void addPath(const VPathData &path, const VMatrix *m = nullptr); + void clone(const VPath::VPathData &o) { *this = o;} + const std::vector<VPath::Element> &elements() const + { + return m_elements; + } + const std::vector<VPointF> &points() const { return m_points; } + std::vector<VPointF> m_points; + std::vector<VPath::Element> m_elements; + size_t m_segments; + VPointF mStartPoint; + mutable float mLength{0}; + mutable bool mLengthDirty{true}; + bool mNewSegment; + }; + + vcow_ptr<VPathData> d; +}; + +inline bool VPath::empty() const +{ + return d->empty(); +} + +/* + * path is empty as well as null(no memory for data allocated yet). + */ +inline bool VPath::null() const +{ + return d->null(); +} + +inline void VPath::moveTo(const VPointF &p) +{ + d.write().moveTo(p.x(), p.y()); +} + +inline void VPath::lineTo(const VPointF &p) +{ + d.write().lineTo(p.x(), p.y()); +} + +inline void VPath::close() +{ + d.write().close(); +} + +inline void VPath::reset() +{ + d.write().reset(); +} + +inline void VPath::reserve(size_t pts, size_t elms) +{ + d.write().reserve(pts, elms); +} + +inline size_t VPath::segments() const +{ + return d->segments(); +} + +inline float VPath::length() const +{ + return d->length(); +} + +inline void VPath::cubicTo(const VPointF &c1, const VPointF &c2, + const VPointF &e) +{ + d.write().cubicTo(c1.x(), c1.y(), c2.x(), c2.y(), e.x(), e.y()); +} + +inline void VPath::lineTo(float x, float y) +{ + d.write().lineTo(x, y); +} + +inline void VPath::moveTo(float x, float y) +{ + d.write().moveTo(x, y); +} + +inline void VPath::cubicTo(float c1x, float c1y, float c2x, float c2y, float ex, + float ey) +{ + d.write().cubicTo(c1x, c1y, c2x, c2y, ex, ey); +} + +inline void VPath::transform(const VMatrix &m) +{ + d.write().transform(m); +} + +inline void VPath::arcTo(const VRectF &rect, float startAngle, + float sweepLength, bool forceMoveTo) +{ + d.write().arcTo(rect, startAngle, sweepLength, forceMoveTo); +} + +inline void VPath::addRect(const VRectF &rect, VPath::Direction dir) +{ + d.write().addRect(rect, dir); +} + +inline void VPath::addRoundRect(const VRectF &rect, float rx, float ry, + VPath::Direction dir) +{ + d.write().addRoundRect(rect, rx, ry, dir); +} + +inline void VPath::addRoundRect(const VRectF &rect, float roundness, + VPath::Direction dir) +{ + d.write().addRoundRect(rect, roundness, dir); +} + +inline void VPath::addCircle(float cx, float cy, float radius, + VPath::Direction dir) +{ + d.write().addCircle(cx, cy, radius, dir); +} + +inline void VPath::addOval(const VRectF &rect, VPath::Direction dir) +{ + d.write().addOval(rect, dir); +} + +inline void VPath::addPolystar(float points, float innerRadius, + float outerRadius, float innerRoundness, + float outerRoundness, float startAngle, float cx, + float cy, VPath::Direction dir) +{ + d.write().addPolystar(points, innerRadius, outerRadius, innerRoundness, + outerRoundness, startAngle, cx, cy, dir); +} + +inline void VPath::addPolygon(float points, float radius, float roundness, + float startAngle, float cx, float cy, + VPath::Direction dir) +{ + d.write().addPolygon(points, radius, roundness, startAngle, cx, cy, dir); +} + +inline void VPath::addPath(const VPath &path) +{ + if (path.empty()) return; + + if (null()) { + *this = path; + } else { + d.write().addPath(path.d.read()); + } +} + +inline void VPath::addPath(const VPath &path, const VMatrix &m) +{ + if (path.empty()) return; + + d.write().addPath(path.d.read(), &m); +} + +inline const std::vector<VPath::Element> &VPath::elements() const +{ + return d->elements(); +} + +inline const std::vector<VPointF> &VPath::points() const +{ + return d->points(); +} + +inline void VPath::clone(const VPath &o) +{ + d.write().clone(o.d.read()); +} + +V_END_NAMESPACE + +#endif // VPATH_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vpathmesure.cpp b/vendor/github.com/Benau/go_rlottie/vector_vpathmesure.cpp new file mode 100644 index 00000000..4288b941 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vpathmesure.cpp @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vpathmesure.h" +#include <limits> +#include "vector_vbezier.h" +#include "vector_vdasher.h" + +V_BEGIN_NAMESPACE + +/* + * start and end value must be normalized to [0 - 1] + * Path mesure trims the path from [start --> end] + * if start > end it treates as a loop and trims as two segment + * [0-->end] and [start --> 1] + */ +VPath VPathMesure::trim(const VPath &path) +{ + if (vCompare(mStart, mEnd)) return VPath(); + + if ((vCompare(mStart, 0.0f) && (vCompare(mEnd, 1.0f))) || + (vCompare(mStart, 1.0f) && (vCompare(mEnd, 0.0f)))) + return path; + + float length = path.length(); + + if (mStart < mEnd) { + float array[4] = { + 0.0f, length * mStart, // 1st segment + (mEnd - mStart) * length, + std::numeric_limits<float>::max(), // 2nd segment + }; + VDasher dasher(array, 4); + dasher.dashed(path, mScratchObject); + return mScratchObject; + } else { + float array[4] = { + length * mEnd, (mStart - mEnd) * length, // 1st segment + (1 - mStart) * length, + std::numeric_limits<float>::max(), // 2nd segment + }; + VDasher dasher(array, 4); + dasher.dashed(path, mScratchObject); + return mScratchObject; + } +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vpathmesure.h b/vendor/github.com/Benau/go_rlottie/vector_vpathmesure.h new file mode 100644 index 00000000..43bd0863 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vpathmesure.h @@ -0,0 +1,44 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VPATHMESURE_H +#define VPATHMESURE_H + +#include "vector_vpath.h" + +V_BEGIN_NAMESPACE + +class VPathMesure { +public: + void setRange(float start, float end) {mStart = start; mEnd = end;} + void setStart(float start){mStart = start;} + void setEnd(float end){mEnd = end;} + VPath trim(const VPath &path); +private: + float mStart{0.0f}; + float mEnd{1.0f}; + VPath mScratchObject; +}; + +V_END_NAMESPACE + +#endif // VPATHMESURE_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vpoint.h b/vendor/github.com/Benau/go_rlottie/vector_vpoint.h new file mode 100644 index 00000000..be5c0ff9 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vpoint.h @@ -0,0 +1,210 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef VPOINT_H +#define VPOINT_H + +#include "vector_vglobal.h" + +V_BEGIN_NAMESPACE + +class VPointF { +public: + VPointF() = default; + constexpr inline VPointF(float x, float y) noexcept : mx(x), my(y) {} + constexpr inline float x() const noexcept { return mx; } + constexpr inline float y() const noexcept { return my; } + inline float & rx() noexcept { return mx; } + inline float & ry() noexcept { return my; } + inline void setX(float x) { mx = x; } + inline void setY(float y) { my = y; } + inline VPointF operator-() noexcept { return {-mx, -my}; } + inline VPointF & operator+=(const VPointF &p) noexcept; + inline VPointF & operator-=(const VPointF &p) noexcept; + friend const VPointF operator+(const VPointF &p1, const VPointF &p2) + { + return VPointF(p1.mx + p2.mx, p1.my + p2.my); + } + inline friend bool fuzzyCompare(const VPointF &p1, const VPointF &p2); + inline friend VDebug & operator<<(VDebug &os, const VPointF &o); + + friend inline VPointF operator-(const VPointF &p1, const VPointF &p2); + friend inline const VPointF operator*(const VPointF &, float); + friend inline const VPointF operator*(float, const VPointF &); + friend inline const VPointF operator/(const VPointF &, float); + friend inline const VPointF operator/(float, const VPointF &); + +private: + float mx{0}; + float my{0}; +}; + +inline bool fuzzyCompare(const VPointF &p1, const VPointF &p2) +{ + return (vCompare(p1.mx, p2.mx) && vCompare(p1.my, p2.my)); +} + +inline VPointF operator-(const VPointF &p1, const VPointF &p2) +{ + return {p1.mx - p2.mx, p1.my - p2.my}; +} + +inline const VPointF operator*(const VPointF &p, float c) +{ + return VPointF(p.mx * c, p.my * c); +} + +inline const VPointF operator*(float c, const VPointF &p) +{ + return VPointF(p.mx * c, p.my * c); +} + +inline const VPointF operator/(const VPointF &p, float c) +{ + return VPointF(p.mx / c, p.my / c); +} + +inline const VPointF operator/(float c, const VPointF &p) +{ + return VPointF(p.mx / c, p.my / c); +} + +inline VDebug &operator<<(VDebug &os, const VPointF &o) +{ + os << "{P " << o.x() << "," << o.y() << "}"; + return os; +} + +inline VPointF &VPointF::operator+=(const VPointF &p) noexcept +{ + mx += p.mx; + my += p.my; + return *this; +} + +inline VPointF &VPointF::operator-=(const VPointF &p) noexcept +{ + mx -= p.mx; + my -= p.my; + return *this; +} + +class VPoint { +public: + VPoint() = default; + constexpr inline VPoint(int x, int y) noexcept : mx(x), my(y) {} + constexpr inline int x() const noexcept { return mx; } + constexpr inline int y() const noexcept { return my; } + inline void setX(int x) { mx = x; } + inline void setY(int y) { my = y; } + inline VPoint & operator+=(const VPoint &p) noexcept; + inline VPoint & operator-=(const VPoint &p) noexcept; + constexpr inline bool operator==(const VPoint &o) const; + constexpr inline bool operator!=(const VPoint &o) const + { + return !(operator==(o)); + } + friend inline VPoint operator-(const VPoint &p1, const VPoint &p2); + inline friend VDebug &operator<<(VDebug &os, const VPoint &o); + +private: + int mx{0}; + int my{0}; +}; +inline VDebug &operator<<(VDebug &os, const VPoint &o) +{ + os << "{P " << o.x() << "," << o.y() << "}"; + return os; +} + +inline VPoint operator-(const VPoint &p1, const VPoint &p2) +{ + return {p1.mx - p2.mx, p1.my - p2.my}; +} + +constexpr inline bool VPoint::operator==(const VPoint &o) const +{ + return (mx == o.x() && my == o.y()); +} + +inline VPoint &VPoint::operator+=(const VPoint &p) noexcept +{ + mx += p.mx; + my += p.my; + return *this; +} + +inline VPoint &VPoint::operator-=(const VPoint &p) noexcept +{ + mx -= p.mx; + my -= p.my; + return *this; +} + +class VSize { +public: + VSize() = default; + constexpr inline VSize(int w, int h) noexcept : mw(w), mh(h) {} + bool empty() const {return (mw <= 0 || mh <= 0);} + constexpr inline int width() const noexcept { return mw; } + constexpr inline int height() const noexcept { return mh; } + inline void setWidth(int w) { mw = w; } + inline void setHeight(int h) { mh = h; } + inline VSize & operator+=(const VSize &p) noexcept; + inline VSize & operator-=(const VSize &p) noexcept; + constexpr inline bool operator==(const VSize &o) const; + constexpr inline bool operator!=(const VSize &o) const + { + return !(operator==(o)); + } + inline friend VDebug &operator<<(VDebug &os, const VSize &o); + +private: + int mw{0}; + int mh{0}; +}; +inline VDebug &operator<<(VDebug &os, const VSize &o) +{ + os << "{P " << o.width() << "," << o.height() << "}"; + return os; +} +constexpr inline bool VSize::operator==(const VSize &o) const +{ + return (mw == o.width() && mh == o.height()); +} + +inline VSize &VSize::operator+=(const VSize &p) noexcept +{ + mw += p.mw; + mh += p.mh; + return *this; +} + +inline VSize &VSize::operator-=(const VSize &p) noexcept +{ + mw -= p.mw; + mh -= p.mh; + return *this; +} + +V_END_NAMESPACE + +#endif // VPOINT_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vraster.cpp b/vendor/github.com/Benau/go_rlottie/vector_vraster.cpp new file mode 100644 index 00000000..656bc32c --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vraster.cpp @@ -0,0 +1,563 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "vector_vraster.h" +#include <climits> +#include <cstring> +#include <memory> +#include "config.h" +#include "vector_freetype_v_ft_raster.h" +#include "vector_freetype_v_ft_stroker.h" +#include "vector_vdebug.h" +#include "vector_vmatrix.h" +#include "vector_vpath.h" +#include "vector_vrle.h" + +V_BEGIN_NAMESPACE + +template <typename T> +class dyn_array { +public: + explicit dyn_array(size_t size) + : mCapacity(size), mData(std::make_unique<T[]>(mCapacity)) + { + } + void reserve(size_t size) + { + if (mCapacity > size) return; + mCapacity = size; + mData = std::make_unique<T[]>(mCapacity); + } + T * data() const { return mData.get(); } + dyn_array &operator=(dyn_array &&) noexcept = delete; + +private: + size_t mCapacity{0}; + std::unique_ptr<T[]> mData{nullptr}; +}; + +struct FTOutline { +public: + void reset(); + void grow(size_t, size_t); + void convert(const VPath &path); + void convert(CapStyle, JoinStyle, float, float); + void moveTo(const VPointF &pt); + void lineTo(const VPointF &pt); + void cubicTo(const VPointF &ctr1, const VPointF &ctr2, const VPointF end); + void close(); + void end(); + void transform(const VMatrix &m); + SW_FT_Pos TO_FT_COORD(float x) + { + return SW_FT_Pos(x * 64); + } // to freetype 26.6 coordinate. + SW_FT_Outline ft; + bool closed{false}; + SW_FT_Stroker_LineCap ftCap; + SW_FT_Stroker_LineJoin ftJoin; + SW_FT_Fixed ftWidth; + SW_FT_Fixed ftMiterLimit; + dyn_array<SW_FT_Vector> mPointMemory{100}; + dyn_array<char> mTagMemory{100}; + dyn_array<short> mContourMemory{10}; + dyn_array<char> mContourFlagMemory{10}; +}; + +void FTOutline::reset() +{ + ft.n_points = ft.n_contours = 0; + ft.flags = 0x0; +} + +void FTOutline::grow(size_t points, size_t segments) +{ + reset(); + mPointMemory.reserve(points + segments); + mTagMemory.reserve(points + segments); + mContourMemory.reserve(segments); + mContourFlagMemory.reserve(segments); + + ft.points = mPointMemory.data(); + ft.tags = mTagMemory.data(); + ft.contours = mContourMemory.data(); + ft.contours_flag = mContourFlagMemory.data(); +} + +void FTOutline::convert(const VPath &path) +{ + const std::vector<VPath::Element> &elements = path.elements(); + const std::vector<VPointF> & points = path.points(); + + grow(points.size(), path.segments()); + + size_t index = 0; + for (auto element : elements) { + switch (element) { + case VPath::Element::MoveTo: + moveTo(points[index]); + index++; + break; + case VPath::Element::LineTo: + lineTo(points[index]); + index++; + break; + case VPath::Element::CubicTo: + cubicTo(points[index], points[index + 1], points[index + 2]); + index = index + 3; + break; + case VPath::Element::Close: + close(); + break; + } + } + end(); +} + +void FTOutline::convert(CapStyle cap, JoinStyle join, float width, + float miterLimit) +{ + // map strokeWidth to freetype. It uses as the radius of the pen not the + // diameter + width = width / 2.0f; + // convert to freetype co-ordinate + // IMP: stroker takes radius in 26.6 co-ordinate + ftWidth = SW_FT_Fixed(width * (1 << 6)); + // IMP: stroker takes meterlimit in 16.16 co-ordinate + ftMiterLimit = SW_FT_Fixed(miterLimit * (1 << 16)); + + // map to freetype capstyle + switch (cap) { + case CapStyle::Square: + ftCap = SW_FT_STROKER_LINECAP_SQUARE; + break; + case CapStyle::Round: + ftCap = SW_FT_STROKER_LINECAP_ROUND; + break; + default: + ftCap = SW_FT_STROKER_LINECAP_BUTT; + break; + } + switch (join) { + case JoinStyle::Bevel: + ftJoin = SW_FT_STROKER_LINEJOIN_BEVEL; + break; + case JoinStyle::Round: + ftJoin = SW_FT_STROKER_LINEJOIN_ROUND; + break; + default: + ftJoin = SW_FT_STROKER_LINEJOIN_MITER_FIXED; + break; + } +} + +void FTOutline::moveTo(const VPointF &pt) +{ + assert(ft.n_points <= SHRT_MAX - 1); + + ft.points[ft.n_points].x = TO_FT_COORD(pt.x()); + ft.points[ft.n_points].y = TO_FT_COORD(pt.y()); + ft.tags[ft.n_points] = SW_FT_CURVE_TAG_ON; + if (ft.n_points) { + ft.contours[ft.n_contours] = ft.n_points - 1; + ft.n_contours++; + } + // mark the current contour as open + // will be updated if ther is a close tag at the end. + ft.contours_flag[ft.n_contours] = 1; + + ft.n_points++; +} + +void FTOutline::lineTo(const VPointF &pt) +{ + assert(ft.n_points <= SHRT_MAX - 1); + + ft.points[ft.n_points].x = TO_FT_COORD(pt.x()); + ft.points[ft.n_points].y = TO_FT_COORD(pt.y()); + ft.tags[ft.n_points] = SW_FT_CURVE_TAG_ON; + ft.n_points++; +} + +void FTOutline::cubicTo(const VPointF &cp1, const VPointF &cp2, + const VPointF ep) +{ + assert(ft.n_points <= SHRT_MAX - 3); + + ft.points[ft.n_points].x = TO_FT_COORD(cp1.x()); + ft.points[ft.n_points].y = TO_FT_COORD(cp1.y()); + ft.tags[ft.n_points] = SW_FT_CURVE_TAG_CUBIC; + ft.n_points++; + + ft.points[ft.n_points].x = TO_FT_COORD(cp2.x()); + ft.points[ft.n_points].y = TO_FT_COORD(cp2.y()); + ft.tags[ft.n_points] = SW_FT_CURVE_TAG_CUBIC; + ft.n_points++; + + ft.points[ft.n_points].x = TO_FT_COORD(ep.x()); + ft.points[ft.n_points].y = TO_FT_COORD(ep.y()); + ft.tags[ft.n_points] = SW_FT_CURVE_TAG_ON; + ft.n_points++; +} +void FTOutline::close() +{ + assert(ft.n_points <= SHRT_MAX - 1); + + // mark the contour as a close path. + ft.contours_flag[ft.n_contours] = 0; + + int index; + if (ft.n_contours) { + index = ft.contours[ft.n_contours - 1] + 1; + } else { + index = 0; + } + + // make sure atleast 1 point exists in the segment. + if (ft.n_points == index) { + closed = false; + return; + } + + ft.points[ft.n_points].x = ft.points[index].x; + ft.points[ft.n_points].y = ft.points[index].y; + ft.tags[ft.n_points] = SW_FT_CURVE_TAG_ON; + ft.n_points++; +} + +void FTOutline::end() +{ + assert(ft.n_contours <= SHRT_MAX - 1); + + if (ft.n_points) { + ft.contours[ft.n_contours] = ft.n_points - 1; + ft.n_contours++; + } +} + +static void rleGenerationCb(int count, const SW_FT_Span *spans, void *user) +{ + VRle *rle = static_cast<VRle *>(user); + auto *rleSpan = reinterpret_cast<const VRle::Span *>(spans); + rle->addSpan(rleSpan, count); +} + +static void bboxCb(int x, int y, int w, int h, void *user) +{ + VRle *rle = static_cast<VRle *>(user); + rle->setBoundingRect({x, y, w, h}); +} + +class SharedRle { +public: + SharedRle() = default; + VRle &unsafe() { return _rle; } + void notify() + { + { + std::lock_guard<std::mutex> lock(_mutex); + _ready = true; + } + _cv.notify_one(); + } + void wait() + { + if (!_pending) return; + + { + std::unique_lock<std::mutex> lock(_mutex); + while (!_ready) _cv.wait(lock); + } + + _pending = false; + } + + VRle &get() + { + wait(); + return _rle; + } + + void reset() + { + wait(); + _ready = false; + _pending = true; + } + +private: + VRle _rle; + std::mutex _mutex; + std::condition_variable _cv; + bool _ready{true}; + bool _pending{false}; +}; + +struct VRleTask { + SharedRle mRle; + VPath mPath; + float mStrokeWidth; + float mMiterLimit; + VRect mClip; + FillRule mFillRule; + CapStyle mCap; + JoinStyle mJoin; + bool mGenerateStroke; + + VRle &rle() { return mRle.get(); } + + void update(VPath path, FillRule fillRule, const VRect &clip) + { + mRle.reset(); + mPath = std::move(path); + mFillRule = fillRule; + mClip = clip; + mGenerateStroke = false; + } + + void update(VPath path, CapStyle cap, JoinStyle join, float width, + float miterLimit, const VRect &clip) + { + mRle.reset(); + mPath = std::move(path); + mCap = cap; + mJoin = join; + mStrokeWidth = width; + mMiterLimit = miterLimit; + mClip = clip; + mGenerateStroke = true; + } + void render(FTOutline &outRef) + { + SW_FT_Raster_Params params; + + mRle.unsafe().reset(); + + params.flags = SW_FT_RASTER_FLAG_DIRECT | SW_FT_RASTER_FLAG_AA; + params.gray_spans = &rleGenerationCb; + params.bbox_cb = &bboxCb; + params.user = &mRle.unsafe(); + params.source = &outRef.ft; + + if (!mClip.empty()) { + params.flags |= SW_FT_RASTER_FLAG_CLIP; + + params.clip_box.xMin = mClip.left(); + params.clip_box.yMin = mClip.top(); + params.clip_box.xMax = mClip.right(); + params.clip_box.yMax = mClip.bottom(); + } + // compute rle + sw_ft_grays_raster.raster_render(nullptr, ¶ms); + } + + void operator()(FTOutline &outRef, SW_FT_Stroker &stroker) + { + if (mPath.points().size() > SHRT_MAX || + mPath.points().size() + mPath.segments() > SHRT_MAX) { + return; + } + + if (mGenerateStroke) { // Stroke Task + outRef.convert(mPath); + outRef.convert(mCap, mJoin, mStrokeWidth, mMiterLimit); + + uint points, contors; + + SW_FT_Stroker_Set(stroker, outRef.ftWidth, outRef.ftCap, + outRef.ftJoin, outRef.ftMiterLimit); + SW_FT_Stroker_ParseOutline(stroker, &outRef.ft); + SW_FT_Stroker_GetCounts(stroker, &points, &contors); + + outRef.grow(points, contors); + + SW_FT_Stroker_Export(stroker, &outRef.ft); + + } else { // Fill Task + outRef.convert(mPath); + int fillRuleFlag = SW_FT_OUTLINE_NONE; + switch (mFillRule) { + case FillRule::EvenOdd: + fillRuleFlag = SW_FT_OUTLINE_EVEN_ODD_FILL; + break; + default: + fillRuleFlag = SW_FT_OUTLINE_NONE; + break; + } + outRef.ft.flags = fillRuleFlag; + } + + render(outRef); + + mPath = VPath(); + + mRle.notify(); + } +}; + +using VTask = std::shared_ptr<VRleTask>; + +#ifdef LOTTIE_THREAD_SUPPORT + +#include <thread> +#include "vector_vtaskqueue.h" + +class RleTaskScheduler { + const unsigned _count{std::thread::hardware_concurrency()}; + std::vector<std::thread> _threads; + std::vector<TaskQueue<VTask>> _q{_count}; + std::atomic<unsigned> _index{0}; + + void run(unsigned i) + { + /* + * initalize per thread objects. + */ + FTOutline outlineRef; + SW_FT_Stroker stroker; + SW_FT_Stroker_New(&stroker); + + // Task Loop + VTask task; + while (true) { + bool success = false; + + for (unsigned n = 0; n != _count * 2; ++n) { + if (_q[(i + n) % _count].try_pop(task)) { + success = true; + break; + } + } + + if (!success && !_q[i].pop(task)) break; + + (*task)(outlineRef, stroker); + } + + // cleanup + SW_FT_Stroker_Done(stroker); + } + + RleTaskScheduler() + { + for (unsigned n = 0; n != _count; ++n) { + _threads.emplace_back([&, n] { run(n); }); + } + } + +public: + static RleTaskScheduler &instance() + { + static RleTaskScheduler singleton; + return singleton; + } + + ~RleTaskScheduler() + { + for (auto &e : _q) e.done(); + + for (auto &e : _threads) e.join(); + } + + void process(VTask task) + { + auto i = _index++; + + for (unsigned n = 0; n != _count; ++n) { + if (_q[(i + n) % _count].try_push(std::move(task))) return; + } + + if (_count > 0) { + _q[i % _count].push(std::move(task)); + } + } +}; + +#else + +class RleTaskScheduler { +public: + FTOutline outlineRef{}; + SW_FT_Stroker stroker; + +public: + static RleTaskScheduler &instance() + { + static RleTaskScheduler singleton; + return singleton; + } + + RleTaskScheduler() { SW_FT_Stroker_New(&stroker); } + + ~RleTaskScheduler() { SW_FT_Stroker_Done(stroker); } + + void process(VTask task) { (*task)(outlineRef, stroker); } +}; +#endif + +struct VRasterizer::VRasterizerImpl { + VRleTask mTask; + + VRle & rle() { return mTask.rle(); } + VRleTask &task() { return mTask; } +}; + +VRle VRasterizer::rle() +{ + if (!d) return VRle(); + return d->rle(); +} + +void VRasterizer::init() +{ + if (!d) d = std::make_shared<VRasterizerImpl>(); +} + +void VRasterizer::updateRequest() +{ + VTask taskObj = VTask(d, &d->task()); + RleTaskScheduler::instance().process(std::move(taskObj)); +} + +void VRasterizer::rasterize(VPath path, FillRule fillRule, const VRect &clip) +{ + init(); + if (path.empty()) { + d->rle().reset(); + return; + } + d->task().update(std::move(path), fillRule, clip); + updateRequest(); +} + +void VRasterizer::rasterize(VPath path, CapStyle cap, JoinStyle join, + float width, float miterLimit, const VRect &clip) +{ + init(); + if (path.empty() || vIsZero(width)) { + d->rle().reset(); + return; + } + d->task().update(std::move(path), cap, join, width, miterLimit, clip); + updateRequest(); +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vraster.h b/vendor/github.com/Benau/go_rlottie/vector_vraster.h new file mode 100644 index 00000000..45d8ebc3 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vraster.h @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VRASTER_H +#define VRASTER_H +#include <future> +#include "vector_vglobal.h" +#include "vector_vrect.h" + +V_BEGIN_NAMESPACE + +class VPath; +class VRle; + +class VRasterizer +{ +public: + void rasterize(VPath path, FillRule fillRule = FillRule::Winding, const VRect &clip = VRect()); + void rasterize(VPath path, CapStyle cap, JoinStyle join, float width, + float miterLimit, const VRect &clip = VRect()); + VRle rle(); +private: + struct VRasterizerImpl; + void init(); + void updateRequest(); + std::shared_ptr<VRasterizerImpl> d{nullptr}; +}; + +V_END_NAMESPACE + +#endif // VRASTER_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vrect.cpp b/vendor/github.com/Benau/go_rlottie/vector_vrect.cpp new file mode 100644 index 00000000..38d29952 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vrect.cpp @@ -0,0 +1,68 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vrect.h" +#include <algorithm> + +VRect VRect::operator&(const VRect &r) const +{ + if (empty()) return VRect(); + + int l1 = x1; + int r1 = x1; + if (x2 - x1 + 1 < 0) + l1 = x2; + else + r1 = x2; + + int l2 = r.x1; + int r2 = r.x1; + if (r.x2 - r.x1 + 1 < 0) + l2 = r.x2; + else + r2 = r.x2; + + if (l1 > r2 || l2 > r1) return VRect(); + + int t1 = y1; + int b1 = y1; + if (y2 - y1 + 1 < 0) + t1 = y2; + else + b1 = y2; + + int t2 = r.y1; + int b2 = r.y1; + if (r.y2 - r.y1 + 1 < 0) + t2 = r.y2; + else + b2 = r.y2; + + if (t1 > b2 || t2 > b1) return VRect(); + + VRect tmp; + tmp.x1 = std::max(l1, l2); + tmp.x2 = std::min(r1, r2); + tmp.y1 = std::max(t1, t2); + tmp.y2 = std::min(b1, b2); + return tmp; +} diff --git a/vendor/github.com/Benau/go_rlottie/vector_vrect.h b/vendor/github.com/Benau/go_rlottie/vector_vrect.h new file mode 100644 index 00000000..590e2174 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vrect.h @@ -0,0 +1,172 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VRECT_H +#define VRECT_H +#include "vector_vglobal.h" +#include "vector_vpoint.h" + +V_BEGIN_NAMESPACE +class VRectF; + +class VRect { +public: + VRect() = default; + VRect(int x, int y, int w, int h):x1(x),y1(y),x2(x+w),y2(y+h){} + explicit VRect(VPoint pt, VSize sz):VRect(pt.x(), pt.y(), sz.width(), sz.height()){} + operator VRectF() const; + V_CONSTEXPR bool empty() const {return x1 >= x2 || y1 >= y2;} + V_CONSTEXPR int left() const {return x1;} + V_CONSTEXPR int top() const {return y1;} + V_CONSTEXPR int right() const {return x2;} + V_CONSTEXPR int bottom() const {return y2;} + V_CONSTEXPR int width() const {return x2-x1;} + V_CONSTEXPR int height() const {return y2-y1;} + V_CONSTEXPR int x() const {return x1;} + V_CONSTEXPR int y() const {return y1;} + VSize size() const {return {width(), height()};} + void setLeft(int l) { x1 = l; } + void setTop(int t) { y1 = t; } + void setRight(int r) { x2 = r; } + void setBottom(int b) { y2 = b; } + void setWidth(int w) { x2 = x1 + w; } + void setHeight(int h) { y2 = y1 + h; } + VRect translated(int dx, int dy) const; + void translate(int dx, int dy); + bool contains(const VRect &r, bool proper = false) const; + bool intersects(const VRect &r); + friend V_CONSTEXPR inline bool operator==(const VRect &, + const VRect &) noexcept; + friend V_CONSTEXPR inline bool operator!=(const VRect &, + const VRect &) noexcept; + friend VDebug & operator<<(VDebug &os, const VRect &o); + + VRect intersected(const VRect &r) const; + VRect operator&(const VRect &r) const; + +private: + int x1{0}; + int y1{0}; + int x2{0}; + int y2{0}; +}; + +inline VRect VRect::intersected(const VRect &r) const +{ + return *this & r; +} + +inline bool VRect::intersects(const VRect &r) +{ + return (right() > r.left() && left() < r.right() && bottom() > r.top() && + top() < r.bottom()); +} + +inline VDebug &operator<<(VDebug &os, const VRect &o) +{ + os << "{R " << o.x() << "," << o.y() << "," << o.width() << "," + << o.height() << "}"; + return os; +} +V_CONSTEXPR inline bool operator==(const VRect &r1, const VRect &r2) noexcept +{ + return r1.x1 == r2.x1 && r1.x2 == r2.x2 && r1.y1 == r2.y1 && r1.y2 == r2.y2; +} + +V_CONSTEXPR inline bool operator!=(const VRect &r1, const VRect &r2) noexcept +{ + return r1.x1 != r2.x1 || r1.x2 != r2.x2 || r1.y1 != r2.y1 || r1.y2 != r2.y2; +} + +inline VRect VRect::translated(int dx, int dy) const +{ + return {x1 + dx, y1 + dy, x2 - x1, y2 - y1}; +} + +inline void VRect::translate(int dx, int dy) +{ + x1 += dx; + y1 += dy; + x2 += dx; + y2 += dy; +} + +inline bool VRect::contains(const VRect &r, bool proper) const +{ + return proper ? + ((x1 < r.x1) && (x2 > r.x2) && (y1 < r.y1) && (y2 > r.y2)) : + ((x1 <= r.x1) && (x2 >= r.x2) && (y1 <= r.y1) && (y2 >= r.y2)); +} + +class VRectF { +public: + VRectF() = default; + + VRectF(double x, double y, double w, double h): + x1(float(x)),y1(float(y)), + x2(float(x+w)),y2(float(y+h)){} + operator VRect() const { + return {int(left()), int(right()), int(width()), int(height())}; + } + + V_CONSTEXPR bool empty() const {return x1 >= x2 || y1 >= y2;} + V_CONSTEXPR float left() const {return x1;} + V_CONSTEXPR float top() const {return y1;} + V_CONSTEXPR float right() const {return x2;} + V_CONSTEXPR float bottom() const {return y2;} + V_CONSTEXPR float width() const {return x2-x1;} + V_CONSTEXPR float height() const {return y2-y1;} + V_CONSTEXPR float x() const {return x1;} + V_CONSTEXPR float y() const {return y1;} + V_CONSTEXPR inline VPointF center() const + { + return {x1 + (x2 - x1) / 2.f, y1 + (y2 - y1) / 2.f}; + } + void setLeft(float l) { x1 = l; } + void setTop(float t) { y1 = t; } + void setRight(float r) { x2 = r; } + void setBottom(float b) { y2 = b; } + void setWidth(float w) { x2 = x1 + w; } + void setHeight(float h) { y2 = y1 + h; } + void translate(float dx, float dy) + { + x1 += dx; + y1 += dy; + x2 += dx; + y2 += dy; + } + +private: + float x1{0}; + float y1{0}; + float x2{0}; + float y2{0}; +}; + +inline VRect::operator VRectF() const +{ + return {double(left()), double(right()), double(width()), double(height())}; +} + +V_END_NAMESPACE + +#endif // VRECT_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vrle.cpp b/vendor/github.com/Benau/go_rlottie/vector_vrle.cpp new file mode 100644 index 00000000..57c7585f --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vrle.cpp @@ -0,0 +1,748 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in + all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "vector_vrle.h" +#include "vector_vrect.h" +#include <algorithm> +#include <array> +#include <cstdlib> +#include <cstring> +#include <limits> +#include <vector> +#include "vector_vdebug.h" +#include "vector_vglobal.h" + +V_BEGIN_NAMESPACE + +using Result = std::array<VRle::Span, 255>; +using rle_view = VRle::View; +static size_t _opGeneric(rle_view &a, rle_view &b, Result &result, + VRle::Data::Op op); +static size_t _opIntersect(const VRect &, rle_view &, Result &); +static size_t _opIntersect(rle_view &, rle_view &, Result &); + +static inline uchar divBy255(int x) +{ + return (x + (x >> 8) + 0x80) >> 8; +} + +inline static void copy(const VRle::Span *span, size_t count, + std::vector<VRle::Span> &v) +{ + // make sure enough memory available + if (v.capacity() < v.size() + count) v.reserve(v.size() + count); + std::copy(span, span + count, back_inserter(v)); +} + +void VRle::Data::addSpan(const VRle::Span *span, size_t count) +{ + copy(span, count, mSpans); + mBboxDirty = true; +} + +VRect VRle::Data::bbox() const +{ + updateBbox(); + return mBbox; +} + +void VRle::Data::setBbox(const VRect &bbox) const +{ + mBboxDirty = false; + mBbox = bbox; +} + +void VRle::Data::reset() +{ + mSpans.clear(); + mBbox = VRect(); + mOffset = VPoint(); + mBboxDirty = false; +} + +void VRle::Data::clone(const VRle::Data &o) +{ + *this = o; +} + +void VRle::Data::translate(const VPoint &p) +{ + // take care of last offset if applied + mOffset = p - mOffset; + int x = mOffset.x(); + int y = mOffset.y(); + for (auto &i : mSpans) { + i.x = i.x + x; + i.y = i.y + y; + } + updateBbox(); + mBbox.translate(mOffset.x(), mOffset.y()); +} + +void VRle::Data::addRect(const VRect &rect) +{ + int x = rect.left(); + int y = rect.top(); + int width = rect.width(); + int height = rect.height(); + + mSpans.reserve(size_t(height)); + + VRle::Span span; + for (int i = 0; i < height; i++) { + span.x = x; + span.y = y + i; + span.len = width; + span.coverage = 255; + mSpans.push_back(span); + } + mBbox = rect; +} + +void VRle::Data::updateBbox() const +{ + if (!mBboxDirty) return; + + mBboxDirty = false; + + int l = std::numeric_limits<int>::max(); + const VRle::Span *span = mSpans.data(); + + mBbox = VRect(); + size_t sz = mSpans.size(); + if (sz) { + int t = span[0].y; + int b = span[sz - 1].y; + int r = 0; + for (size_t i = 0; i < sz; i++) { + if (span[i].x < l) l = span[i].x; + if (span[i].x + span[i].len > r) r = span[i].x + span[i].len; + } + mBbox = VRect(l, t, r - l, b - t + 1); + } +} + +void VRle::Data::operator*=(uchar alpha) +{ + for (auto &i : mSpans) { + i.coverage = divBy255(i.coverage * alpha); + } +} + +void VRle::Data::opIntersect(const VRect &r, VRle::VRleSpanCb cb, + void *userData) const +{ + if (empty()) return; + + if (r.contains(bbox())) { + cb(mSpans.size(), mSpans.data(), userData); + return; + } + + auto obj = view(); + Result result; + // run till all the spans are processed + while (obj.size()) { + auto count = _opIntersect(r, obj, result); + if (count) cb(count, result.data(), userData); + } +} + +// res = a - b; +void VRle::Data::opSubstract(const VRle::Data &aObj, const VRle::Data &bObj) +{ + // if two rle are disjoint + if (!aObj.bbox().intersects(bObj.bbox())) { + mSpans = aObj.mSpans; + } else { + auto a = aObj.view(); + auto b = bObj.view(); + + auto aPtr = a.data(); + auto aEnd = a.data() + a.size(); + auto bPtr = b.data(); + auto bEnd = b.data() + b.size(); + + // 1. forward a till it intersects with b + while ((aPtr != aEnd) && (aPtr->y < bPtr->y)) aPtr++; + auto count = aPtr - a.data(); + if (count) copy(a.data(), count, mSpans); + + // 2. forward b till it intersects with a + if (aPtr != aEnd) + while ((bPtr != bEnd) && (bPtr->y < aPtr->y)) bPtr++; + + // update a and b object + a = {aPtr, size_t(aEnd - aPtr)}; + b = {bPtr, size_t(bEnd - bPtr)}; + + // 3. calculate the intersect region + Result result; + + // run till all the spans are processed + while (a.size() && b.size()) { + auto count = _opGeneric(a, b, result, Op::Substract); + if (count) copy(result.data(), count, mSpans); + } + + // 4. copy the rest of a + if (a.size()) copy(a.data(), a.size(), mSpans); + } + + mBboxDirty = true; +} + +void VRle::Data::opGeneric(const VRle::Data &aObj, const VRle::Data &bObj, + Op op) +{ + // This routine assumes, obj1(span_y) < obj2(span_y). + + auto a = aObj.view(); + auto b = bObj.view(); + + // reserve some space for the result vector. + mSpans.reserve(a.size() + b.size()); + + // if two rle are disjoint + if (!aObj.bbox().intersects(bObj.bbox())) { + if (a.data()[0].y < b.data()[0].y) { + copy(a.data(), a.size(), mSpans); + copy(b.data(), b.size(), mSpans); + } else { + copy(b.data(), b.size(), mSpans); + copy(a.data(), a.size(), mSpans); + } + } else { + auto aPtr = a.data(); + auto aEnd = a.data() + a.size(); + auto bPtr = b.data(); + auto bEnd = b.data() + b.size(); + + // 1. forward a till it intersects with b + while ((aPtr != aEnd) && (aPtr->y < bPtr->y)) aPtr++; + + auto count = aPtr - a.data(); + if (count) copy(a.data(), count, mSpans); + + // 2. forward b till it intersects with a + if (aPtr != aEnd) + while ((bPtr != bEnd) && (bPtr->y < aPtr->y)) bPtr++; + + count = bPtr - b.data(); + if (count) copy(b.data(), count, mSpans); + + // update a and b object + a = {aPtr, size_t(aEnd - aPtr)}; + b = {bPtr, size_t(bEnd - bPtr)}; + + // 3. calculate the intersect region + Result result; + + // run till all the spans are processed + while (a.size() && b.size()) { + auto count = _opGeneric(a, b, result, op); + if (count) copy(result.data(), count, mSpans); + } + // 3. copy the rest + if (b.size()) copy(b.data(), b.size(), mSpans); + if (a.size()) copy(a.data(), a.size(), mSpans); + } + + mBboxDirty = true; +} + +static inline V_ALWAYS_INLINE void _opIntersectPrepare(VRle::View &a, + VRle::View &b) +{ + auto aPtr = a.data(); + auto aEnd = a.data() + a.size(); + auto bPtr = b.data(); + auto bEnd = b.data() + b.size(); + + // 1. advance a till it intersects with b + while ((aPtr != aEnd) && (aPtr->y < bPtr->y)) aPtr++; + + // 2. advance b till it intersects with a + if (aPtr != aEnd) + while ((bPtr != bEnd) && (bPtr->y < aPtr->y)) bPtr++; + + // update a and b object + a = {aPtr, size_t(aEnd - aPtr)}; + b = {bPtr, size_t(bEnd - bPtr)}; +} + +void VRle::Data::opIntersect(VRle::View a, VRle::View b) +{ + _opIntersectPrepare(a, b); + Result result; + while (a.size()) { + auto count = _opIntersect(a, b, result); + if (count) copy(result.data(), count, mSpans); + } + + updateBbox(); +} + +static void _opIntersect(rle_view a, rle_view b, VRle::VRleSpanCb cb, + void *userData) +{ + if (!cb) return; + + _opIntersectPrepare(a, b); + Result result; + while (a.size()) { + auto count = _opIntersect(a, b, result); + if (count) cb(count, result.data(), userData); + } +} + +/* + * This function will clip a rle list with another rle object + * tmp_clip : The rle list that will be use to clip the rle + * tmp_obj : holds the list of spans that has to be clipped + * result : will hold the result after the processing + * NOTE: if the algorithm runs out of the result buffer list + * it will stop and update the tmp_obj with the span list + * that are yet to be processed as well as the tpm_clip object + * with the unprocessed clip spans. + */ + +static size_t _opIntersect(rle_view &obj, rle_view &clip, Result &result) +{ + auto out = result.data(); + auto available = result.max_size(); + auto spans = obj.data(); + auto end = obj.data() + obj.size(); + auto clipSpans = clip.data(); + auto clipEnd = clip.data() + clip.size(); + int sx1, sx2, cx1, cx2, x, len; + + while (available && spans < end) { + if (clipSpans >= clipEnd) { + spans = end; + break; + } + if (clipSpans->y > spans->y) { + ++spans; + continue; + } + if (spans->y != clipSpans->y) { + ++clipSpans; + continue; + } + // assert(spans->y == (clipSpans->y + clip_offset_y)); + sx1 = spans->x; + sx2 = sx1 + spans->len; + cx1 = clipSpans->x; + cx2 = cx1 + clipSpans->len; + + if (cx1 < sx1 && cx2 < sx1) { + ++clipSpans; + continue; + } else if (sx1 < cx1 && sx2 < cx1) { + ++spans; + continue; + } + x = std::max(sx1, cx1); + len = std::min(sx2, cx2) - x; + if (len) { + out->x = std::max(sx1, cx1); + out->len = (std::min(sx2, cx2) - out->x); + out->y = spans->y; + out->coverage = divBy255(spans->coverage * clipSpans->coverage); + ++out; + --available; + } + if (sx2 < cx2) { + ++spans; + } else { + ++clipSpans; + } + } + + // update the obj view yet to be processed + obj = {spans, size_t(end - spans)}; + + // update the clip view yet to be processed + clip = {clipSpans, size_t(clipEnd - clipSpans)}; + + return result.max_size() - available; +} + +/* + * This function will clip a rle list with a given rect + * clip : The clip rect that will be use to clip the rle + * tmp_obj : holds the list of spans that has to be clipped + * result : will hold the result after the processing + * NOTE: if the algorithm runs out of the result buffer list + * it will stop and update the tmp_obj with the span list + * that are yet to be processed + */ +static size_t _opIntersect(const VRect &clip, rle_view &obj, Result &result) +{ + auto out = result.data(); + auto available = result.max_size(); + auto ptr = obj.data(); + auto end = obj.data() + obj.size(); + + const auto minx = clip.left(); + const auto miny = clip.top(); + const auto maxx = clip.right() - 1; + const auto maxy = clip.bottom() - 1; + + while (available && ptr < end) { + const auto &span = *ptr; + if (span.y > maxy) { + ptr = end; // update spans so that we can breakout + break; + } + if (span.y < miny || span.x > maxx || span.x + span.len <= minx) { + ++ptr; + continue; + } + if (span.x < minx) { + out->len = std::min(span.len - (minx - span.x), maxx - minx + 1); + out->x = minx; + } else { + out->x = span.x; + out->len = std::min(span.len, ushort(maxx - span.x + 1)); + } + if (out->len != 0) { + out->y = span.y; + out->coverage = span.coverage; + ++out; + --available; + } + ++ptr; + } + + // update the span list that yet to be processed + obj = {ptr, size_t(end - ptr)}; + + return result.max_size() - available; +} + +static void blitXor(VRle::Span *spans, int count, uchar *buffer, int offsetX) +{ + while (count--) { + int x = spans->x + offsetX; + int l = spans->len; + uchar *ptr = buffer + x; + while (l--) { + int da = *ptr; + *ptr = divBy255((255 - spans->coverage) * (da) + + spans->coverage * (255 - da)); + ptr++; + } + spans++; + } +} + +static void blitDestinationOut(VRle::Span *spans, int count, uchar *buffer, + int offsetX) +{ + while (count--) { + int x = spans->x + offsetX; + int l = spans->len; + uchar *ptr = buffer + x; + while (l--) { + *ptr = divBy255((255 - spans->coverage) * (*ptr)); + ptr++; + } + spans++; + } +} + +static void blitSrcOver(VRle::Span *spans, int count, uchar *buffer, + int offsetX) +{ + while (count--) { + int x = spans->x + offsetX; + int l = spans->len; + uchar *ptr = buffer + x; + while (l--) { + *ptr = spans->coverage + divBy255((255 - spans->coverage) * (*ptr)); + ptr++; + } + spans++; + } +} + +void blitSrc(VRle::Span *spans, int count, uchar *buffer, int offsetX) +{ + while (count--) { + int x = spans->x + offsetX; + int l = spans->len; + uchar *ptr = buffer + x; + while (l--) { + *ptr = std::max(spans->coverage, *ptr); + ptr++; + } + spans++; + } +} + +size_t bufferToRle(uchar *buffer, int size, int offsetX, int y, VRle::Span *out) +{ + size_t count = 0; + uchar value = buffer[0]; + int curIndex = 0; + + // size = offsetX < 0 ? size + offsetX : size; + for (int i = 0; i < size; i++) { + uchar curValue = buffer[0]; + if (value != curValue) { + if (value) { + out->y = y; + out->x = offsetX + curIndex; + out->len = i - curIndex; + out->coverage = value; + out++; + count++; + } + curIndex = i; + value = curValue; + } + buffer++; + } + if (value) { + out->y = y; + out->x = offsetX + curIndex; + out->len = size - curIndex; + out->coverage = value; + count++; + } + return count; +} + +struct SpanMerger { + explicit SpanMerger(VRle::Data::Op op) + { + switch (op) { + case VRle::Data::Op::Add: + _blitter = &blitSrcOver; + break; + case VRle::Data::Op::Xor: + _blitter = &blitXor; + break; + case VRle::Data::Op::Substract: + _blitter = &blitDestinationOut; + break; + } + } + using blitter = void (*)(VRle::Span *, int, uchar *, int); + blitter _blitter; + std::array<VRle::Span, 256> _result; + std::array<uchar, 1024> _buffer; + VRle::Span * _aStart{nullptr}; + VRle::Span * _bStart{nullptr}; + + void revert(VRle::Span *&aPtr, VRle::Span *&bPtr) + { + aPtr = _aStart; + bPtr = _bStart; + } + VRle::Span *data() { return _result.data(); } + size_t merge(VRle::Span *&aPtr, const VRle::Span *aEnd, VRle::Span *&bPtr, + const VRle::Span *bEnd); +}; + +size_t SpanMerger::merge(VRle::Span *&aPtr, const VRle::Span *aEnd, + VRle::Span *&bPtr, const VRle::Span *bEnd) +{ + assert(aPtr->y == bPtr->y); + + _aStart = aPtr; + _bStart = bPtr; + int lb = std::min(aPtr->x, bPtr->x); + int y = aPtr->y; + + while (aPtr < aEnd && aPtr->y == y) aPtr++; + while (bPtr < bEnd && bPtr->y == y) bPtr++; + + int ub = std::max((aPtr - 1)->x + (aPtr - 1)->len, + (bPtr - 1)->x + (bPtr - 1)->len); + int length = (lb < 0) ? ub + lb : ub - lb; + + if (length <= 0 || size_t(length) >= _buffer.max_size()) { + // can't handle merge . skip + return 0; + } + + // clear buffer + memset(_buffer.data(), 0, length); + + // blit a to buffer + blitSrc(_aStart, aPtr - _aStart, _buffer.data(), -lb); + + // blit b to buffer + _blitter(_bStart, bPtr - _bStart, _buffer.data(), -lb); + + // convert buffer to span + return bufferToRle(_buffer.data(), length, lb, y, _result.data()); +} + +static size_t _opGeneric(rle_view &a, rle_view &b, Result &result, + VRle::Data::Op op) +{ + SpanMerger merger{op}; + + auto out = result.data(); + size_t available = result.max_size(); + auto aPtr = a.data(); + auto aEnd = a.data() + a.size(); + auto bPtr = b.data(); + auto bEnd = b.data() + b.size(); + + // only logic change for substract operation. + const bool keep = op != (VRle::Data::Op::Substract); + + while (available && aPtr < aEnd && bPtr < bEnd) { + if (aPtr->y < bPtr->y) { + *out++ = *aPtr++; + available--; + } else if (bPtr->y < aPtr->y) { + if (keep) { + *out++ = *bPtr; + available--; + } + bPtr++; + } else { // same y + auto count = merger.merge(aPtr, aEnd, bPtr, bEnd); + if (available >= count) { + if (count) { + memcpy(out, merger.data(), count * sizeof(VRle::Span)); + out += count; + available -= count; + } + } else { + // not enough space try next time. + merger.revert(aPtr, bPtr); + break; + } + } + } + // update the span list that yet to be processed + a = {aPtr, size_t(aEnd - aPtr)}; + b = {bPtr, size_t(bEnd - bPtr)}; + + return result.max_size() - available; +} + +/* + * this api makes use of thread_local temporary + * buffer to avoid creating intermediate temporary rle buffer + * the scratch buffer object will grow its size on demand + * so that future call won't need any more memory allocation. + * this function is thread safe as it uses thread_local variable + * which is unique per thread. + */ +static vthread_local VRle::Data Scratch_Object; + +VRle VRle::opGeneric(const VRle &o, Data::Op op) const +{ + if (empty()) return o; + if (o.empty()) return *this; + + Scratch_Object.reset(); + Scratch_Object.opGeneric(d.read(), o.d.read(), op); + + VRle result; + result.d.write() = Scratch_Object; + + return result; +} + +VRle VRle::operator-(const VRle &o) const +{ + if (empty()) return {}; + if (o.empty()) return *this; + + Scratch_Object.reset(); + Scratch_Object.opSubstract(d.read(), o.d.read()); + + VRle result; + result.d.write() = Scratch_Object; + + return result; +} + +VRle VRle::operator&(const VRle &o) const +{ + if (empty() || o.empty()) return {}; + + Scratch_Object.reset(); + Scratch_Object.opIntersect(d.read().view(), o.d.read().view()); + + VRle result; + result.d.write() = Scratch_Object; + + return result; +} + +void VRle::operator&=(const VRle &o) +{ + if (empty()) return; + if (o.empty()) { + reset(); + return; + } + Scratch_Object.reset(); + Scratch_Object.opIntersect(d.read().view(), o.d.read().view()); + d.write() = Scratch_Object; +} + +VRle operator-(const VRect &rect, const VRle &o) +{ + if (rect.empty()) return {}; + + Scratch_Object.reset(); + Scratch_Object.addRect(rect); + + VRle result; + result.d.write().opSubstract(Scratch_Object, o.d.read()); + + return result; +} + +VRle operator&(const VRect &rect, const VRle &o) +{ + if (rect.empty() || o.empty()) return {}; + + Scratch_Object.reset(); + Scratch_Object.addRect(rect); + + VRle result; + result.d.write().opIntersect(Scratch_Object.view(), o.d.read().view()); + + return result; +} + +void VRle::intersect(const VRle &clip, VRleSpanCb cb, void *userData) const +{ + if (empty() || clip.empty()) return; + + _opIntersect(d.read().view(), clip.d.read().view(), cb, userData); +} + +V_END_NAMESPACE diff --git a/vendor/github.com/Benau/go_rlottie/vector_vrle.h b/vendor/github.com/Benau/go_rlottie/vector_vrle.h new file mode 100644 index 00000000..a47893fc --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vrle.h @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VRLE_H +#define VRLE_H + +#include <vector> +#include "vector_vcowptr.h" +#include "vector_vglobal.h" +#include "vector_vpoint.h" +#include "vector_vrect.h" + +V_BEGIN_NAMESPACE + +class VRle { +public: + struct Span { + short x{0}; + short y{0}; + ushort len{0}; + uchar coverage{0}; + }; + using VRleSpanCb = void (*)(size_t count, const VRle::Span *spans, + void *userData); + bool empty() const { return d->empty(); } + VRect boundingRect() const { return d->bbox(); } + void setBoundingRect(const VRect &bbox) { d->setBbox(bbox); } + void addSpan(const VRle::Span *span, size_t count) + { + d.write().addSpan(span, count); + } + + void reset() { d.write().reset(); } + void translate(const VPoint &p) { d.write().translate(p); } + + void operator*=(uchar alpha) { d.write() *= alpha; } + + void intersect(const VRect &r, VRleSpanCb cb, void *userData) const; + void intersect(const VRle &rle, VRleSpanCb cb, void *userData) const; + + void operator&=(const VRle &o); + VRle operator&(const VRle &o) const; + VRle operator-(const VRle &o) const; + VRle operator+(const VRle &o) const { return opGeneric(o, Data::Op::Add); } + VRle operator^(const VRle &o) const { return opGeneric(o, Data::Op::Xor); } + + friend VRle operator-(const VRect &rect, const VRle &o); + friend VRle operator&(const VRect &rect, const VRle &o); + + bool unique() const { return d.unique(); } + size_t refCount() const { return d.refCount(); } + void clone(const VRle &o) { d.write().clone(o.d.read()); } + +public: + struct View { + Span * _data; + size_t _size; + View(const Span *data, size_t sz) : _data((Span *)data), _size(sz) {} + Span * data() { return _data; } + size_t size() { return _size; } + }; + struct Data { + enum class Op { Add, Xor, Substract }; + VRle::View view() const + { + return VRle::View(mSpans.data(), mSpans.size()); + } + bool empty() const { return mSpans.empty(); } + void addSpan(const VRle::Span *span, size_t count); + void updateBbox() const; + VRect bbox() const; + void setBbox(const VRect &bbox) const; + void reset(); + void translate(const VPoint &p); + void operator*=(uchar alpha); + void opGeneric(const VRle::Data &, const VRle::Data &, Op code); + void opSubstract(const VRle::Data &, const VRle::Data &); + void opIntersect(VRle::View a, VRle::View b); + void opIntersect(const VRect &, VRle::VRleSpanCb, void *) const; + void addRect(const VRect &rect); + void clone(const VRle::Data &); + + std::vector<VRle::Span> mSpans; + VPoint mOffset; + mutable VRect mBbox; + mutable bool mBboxDirty = true; + }; + +private: + VRle opGeneric(const VRle &o, Data::Op opcode) const; + + vcow_ptr<Data> d; +}; + +inline void VRle::intersect(const VRect &r, VRleSpanCb cb, void *userData) const +{ + d->opIntersect(r, cb, userData); +} + +V_END_NAMESPACE + +#endif // VRLE_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vsharedptr.h b/vendor/github.com/Benau/go_rlottie/vector_vsharedptr.h new file mode 100644 index 00000000..fc0c419c --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vsharedptr.h @@ -0,0 +1,123 @@ +#ifndef VSHAREDPTR_H +#define VSHAREDPTR_H + +#include <cassert> +#include <memory> +#include <atomic> + +template <typename T, typename Rc> +class vshared_ptr { + struct model { + Rc mRef{1}; + + model() = default; + + template <class... Args> + explicit model(Args&&... args) : mValue(std::forward<Args>(args)...){} + explicit model(const T& other) : mValue(other){} + + T mValue; + }; + model* mModel{nullptr}; + +public: + using element_type = T; + + vshared_ptr() = default; + + ~vshared_ptr() + { + unref(); + } + + template <class... Args> + explicit vshared_ptr(Args&&... args) : mModel(new model(std::forward<Args>(args)...)) + { + } + + vshared_ptr(const vshared_ptr& x) noexcept : vshared_ptr() + { + if (x.mModel) { + mModel = x.mModel; + ++mModel->mRef; + } + } + + vshared_ptr(vshared_ptr&& x) noexcept : vshared_ptr() + { + if (x.mModel) { + mModel = x.mModel; + x.mModel = nullptr; + } + } + + auto operator=(const vshared_ptr& x) noexcept -> vshared_ptr& + { + unref(); + mModel = x.mModel; + ref(); + return *this; + } + + auto operator=(vshared_ptr&& x) noexcept -> vshared_ptr& + { + unref(); + mModel = x.mModel; + x.mModel = nullptr; + return *this; + } + + operator bool() const noexcept { + return mModel != nullptr; + } + + auto operator*() const noexcept -> element_type& { return read(); } + + auto operator-> () const noexcept -> element_type* { return &read(); } + + std::size_t refCount() const noexcept + { + assert(mModel); + + return mModel->mRef; + } + + bool unique() const noexcept + { + assert(mModel); + + return mModel->mRef == 1; + } + +private: + + auto read() const noexcept -> element_type& + { + assert(mModel); + + return mModel->mValue; + } + + void ref() + { + if (mModel) ++mModel->mRef; + } + + void unref() + { + if (mModel && (--mModel->mRef == 0)) { + delete mModel; + mModel = nullptr; + } + } +}; + +// atomic ref counted pointer implementation. +template < typename T> +using arc_ptr = vshared_ptr<T, std::atomic<std::size_t>>; + +// ref counter pointer implementation. +template < typename T> +using rc_ptr = vshared_ptr<T, std::size_t>; + +#endif // VSHAREDPTR_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vstackallocator.h b/vendor/github.com/Benau/go_rlottie/vector_vstackallocator.h new file mode 100644 index 00000000..a305b739 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vstackallocator.h @@ -0,0 +1,156 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VSTACK_ALLOCATOR_H +#define VSTACK_ALLOCATOR_H + +#include <cstddef> +#include <cassert> + +template <std::size_t N, std::size_t alignment = alignof(std::max_align_t)> +class arena +{ + alignas(alignment) char buf_[N]; + char* ptr_; + +public: + ~arena() {ptr_ = nullptr;} + arena() noexcept : ptr_(buf_) {} + arena(const arena&) = delete; + arena& operator=(const arena&) = delete; + + template <std::size_t ReqAlign> char* allocate(std::size_t n); + void deallocate(char* p, std::size_t n) noexcept; + + static constexpr std::size_t size() noexcept {return N;} + std::size_t used() const noexcept {return static_cast<std::size_t>(ptr_ - buf_);} + void reset() noexcept {ptr_ = buf_;} + +private: + static + std::size_t + align_up(std::size_t n) noexcept + {return (n + (alignment-1)) & ~(alignment-1);} + + bool + pointer_in_buffer(char* p) noexcept + {return buf_ <= p && p <= buf_ + N;} +}; + +template <std::size_t N, std::size_t alignment> +template <std::size_t ReqAlign> +char* +arena<N, alignment>::allocate(std::size_t n) +{ + static_assert(ReqAlign <= alignment, "alignment is too small for this arena"); + assert(pointer_in_buffer(ptr_) && "stack_alloc has outlived arena"); + auto const aligned_n = align_up(n); + if (static_cast<decltype(aligned_n)>(buf_ + N - ptr_) >= aligned_n) + { + char* r = ptr_; + ptr_ += aligned_n; + return r; + } + + static_assert(alignment <= alignof(std::max_align_t), "you've chosen an " + "alignment that is larger than alignof(std::max_align_t), and " + "cannot be guaranteed by normal operator new"); + return static_cast<char*>(::operator new(n)); +} + +template <std::size_t N, std::size_t alignment> +void +arena<N, alignment>::deallocate(char* p, std::size_t n) noexcept +{ + assert(pointer_in_buffer(ptr_) && "stack_alloc has outlived arena"); + if (pointer_in_buffer(p)) + { + n = align_up(n); + if (p + n == ptr_) + ptr_ = p; + } + else + ::operator delete(p); +} + +template <class T, std::size_t N, std::size_t Align = alignof(std::max_align_t)> +class stack_alloc +{ +public: + using value_type = T; + static auto constexpr alignment = Align; + static auto constexpr size = N; + using arena_type = arena<size, alignment>; + +private: + arena_type& a_; + +public: + stack_alloc(const stack_alloc&) = default; + stack_alloc& operator=(const stack_alloc&) = delete; + + stack_alloc(arena_type& a) noexcept : a_(a) + { + static_assert(size % alignment == 0, + "size N needs to be a multiple of alignment Align"); + } + template <class U> + stack_alloc(const stack_alloc<U, N, alignment>& a) noexcept + : a_(a.a_) {} + + template <class _Up> struct rebind {using other = stack_alloc<_Up, N, alignment>;}; + + T* allocate(std::size_t n) + { + return reinterpret_cast<T*>(a_.template allocate<alignof(T)>(n*sizeof(T))); + } + void deallocate(T* p, std::size_t n) noexcept + { + a_.deallocate(reinterpret_cast<char*>(p), n*sizeof(T)); + } + + template <class T1, std::size_t N1, std::size_t A1, + class U, std::size_t M, std::size_t A2> + friend + bool + operator==(const stack_alloc<T1, N1, A1>& x, const stack_alloc<U, M, A2>& y) noexcept; + + template <class U, std::size_t M, std::size_t A> friend class stack_alloc; +}; + +template <class T, std::size_t N, std::size_t A1, class U, std::size_t M, std::size_t A2> +inline +bool +operator==(const stack_alloc<T, N, A1>& x, const stack_alloc<U, M, A2>& y) noexcept +{ + return N == M && A1 == A2 && &x.a_ == &y.a_; +} + +template <class T, std::size_t N, std::size_t A1, class U, std::size_t M, std::size_t A2> +inline +bool +operator!=(const stack_alloc<T, N, A1>& x, const stack_alloc<U, M, A2>& y) noexcept +{ + return !(x == y); +} + +#endif // VSTACK_ALLOCATOR_H diff --git a/vendor/github.com/Benau/go_rlottie/vector_vtaskqueue.h b/vendor/github.com/Benau/go_rlottie/vector_vtaskqueue.h new file mode 100644 index 00000000..e505c2f4 --- /dev/null +++ b/vendor/github.com/Benau/go_rlottie/vector_vtaskqueue.h @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved. + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef VTASKQUEUE_H +#define VTASKQUEUE_H + +#include <deque> + +template <typename Task> +class TaskQueue { + using lock_t = std::unique_lock<std::mutex>; + std::deque<Task> _q; + bool _done{false}; + std::mutex _mutex; + std::condition_variable _ready; + +public: + bool try_pop(Task &task) + { + lock_t lock{_mutex, std::try_to_lock}; + if (!lock || _q.empty()) return false; + task = std::move(_q.front()); + _q.pop_front(); + return true; + } + + bool try_push(Task &&task) + { + { + lock_t lock{_mutex, std::try_to_lock}; + if (!lock) return false; + _q.push_back(std::move(task)); + } + _ready.notify_one(); + return true; + } + + void done() + { + { + lock_t lock{_mutex}; + _done = true; + } + _ready.notify_all(); + } + + bool pop(Task &task) + { + lock_t lock{_mutex}; + while (_q.empty() && !_done) _ready.wait(lock); + if (_q.empty()) return false; + task = std::move(_q.front()); + _q.pop_front(); + return true; + } + + void push(Task &&task) + { + { + lock_t lock{_mutex}; + _q.push_back(std::move(task)); + } + _ready.notify_one(); + } + +}; + +#endif // VTASKQUEUE_H |