1 files changed, 0 insertions, 268 deletions
diff --git a/vendor/github.com/disintegration/imaging/transform.go b/vendor/github.com/disintegration/imaging/transform.go
deleted file mode 100644
index fe4a92f9..00000000
--- a/vendor/github.com/disintegration/imaging/transform.go
+++ /dev/null
@@ -1,268 +0,0 @@
-package imaging
-
-import (
-	"image"
-	"image/color"
-	"math"
-)
-
-// FlipH flips the image horizontally (from left to right) and returns the transformed image.
-func FlipH(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.w
-	dstH := src.h
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcY := dstY
-			src.scan(0, srcY, src.w, srcY+1, dst.Pix[i:i+rowSize])
-			reverse(dst.Pix[i : i+rowSize])
-		}
-	})
-	return dst
-}
-
-// FlipV flips the image vertically (from top to bottom) and returns the transformed image.
-func FlipV(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.w
-	dstH := src.h
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcY := dstH - dstY - 1
-			src.scan(0, srcY, src.w, srcY+1, dst.Pix[i:i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Transpose flips the image horizontally and rotates 90 degrees counter-clockwise.
-func Transpose(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.h
-	dstH := src.w
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcX := dstY
-			src.scan(srcX, 0, srcX+1, src.h, dst.Pix[i:i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Transverse flips the image vertically and rotates 90 degrees counter-clockwise.
-func Transverse(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.h
-	dstH := src.w
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcX := dstH - dstY - 1
-			src.scan(srcX, 0, srcX+1, src.h, dst.Pix[i:i+rowSize])
-			reverse(dst.Pix[i : i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Rotate90 rotates the image 90 degrees counter-clockwise and returns the transformed image.
-func Rotate90(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.h
-	dstH := src.w
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcX := dstH - dstY - 1
-			src.scan(srcX, 0, srcX+1, src.h, dst.Pix[i:i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Rotate180 rotates the image 180 degrees counter-clockwise and returns the transformed image.
-func Rotate180(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.w
-	dstH := src.h
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcY := dstH - dstY - 1
-			src.scan(0, srcY, src.w, srcY+1, dst.Pix[i:i+rowSize])
-			reverse(dst.Pix[i : i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Rotate270 rotates the image 270 degrees counter-clockwise and returns the transformed image.
-func Rotate270(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.h
-	dstH := src.w
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcX := dstY
-			src.scan(srcX, 0, srcX+1, src.h, dst.Pix[i:i+rowSize])
-			reverse(dst.Pix[i : i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Rotate rotates an image by the given angle counter-clockwise .
-// The angle parameter is the rotation angle in degrees.
-// The bgColor parameter specifies the color of the uncovered zone after the rotation.
-func Rotate(img image.Image, angle float64, bgColor color.Color) *image.NRGBA {
-	angle = angle - math.Floor(angle/360)*360
-
-	switch angle {
-	case 0:
-		return Clone(img)
-	case 90:
-		return Rotate90(img)
-	case 180:
-		return Rotate180(img)
-	case 270:
-		return Rotate270(img)
-	}
-
-	src := toNRGBA(img)
-	srcW := src.Bounds().Max.X
-	srcH := src.Bounds().Max.Y
-	dstW, dstH := rotatedSize(srcW, srcH, angle)
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-
-	if dstW <= 0 || dstH <= 0 {
-		return dst
-	}
-
-	srcXOff := float64(srcW)/2 - 0.5
-	srcYOff := float64(srcH)/2 - 0.5
-	dstXOff := float64(dstW)/2 - 0.5
-	dstYOff := float64(dstH)/2 - 0.5
-
-	bgColorNRGBA := color.NRGBAModel.Convert(bgColor).(color.NRGBA)
-	sin, cos := math.Sincos(math.Pi * angle / 180)
-
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			for dstX := 0; dstX < dstW; dstX++ {
-				xf, yf := rotatePoint(float64(dstX)-dstXOff, float64(dstY)-dstYOff, sin, cos)
-				xf, yf = xf+srcXOff, yf+srcYOff
-				interpolatePoint(dst, dstX, dstY, src, xf, yf, bgColorNRGBA)
-			}
-		}
-	})
-
-	return dst
-}
-
-func rotatePoint(x, y, sin, cos float64) (float64, float64) {
-	return x*cos - y*sin, x*sin + y*cos
-}
-
-func rotatedSize(w, h int, angle float64) (int, int) {
-	if w <= 0 || h <= 0 {
-		return 0, 0
-	}
-
-	sin, cos := math.Sincos(math.Pi * angle / 180)
-	x1, y1 := rotatePoint(float64(w-1), 0, sin, cos)
-	x2, y2 := rotatePoint(float64(w-1), float64(h-1), sin, cos)
-	x3, y3 := rotatePoint(0, float64(h-1), sin, cos)
-
-	minx := math.Min(x1, math.Min(x2, math.Min(x3, 0)))
-	maxx := math.Max(x1, math.Max(x2, math.Max(x3, 0)))
-	miny := math.Min(y1, math.Min(y2, math.Min(y3, 0)))
-	maxy := math.Max(y1, math.Max(y2, math.Max(y3, 0)))
-
-	neww := maxx - minx + 1
-	if neww-math.Floor(neww) > 0.1 {
-		neww++
-	}
-	newh := maxy - miny + 1
-	if newh-math.Floor(newh) > 0.1 {
-		newh++
-	}
-
-	return int(neww), int(newh)
-}
-
-func interpolatePoint(dst *image.NRGBA, dstX, dstY int, src *image.NRGBA, xf, yf float64, bgColor color.NRGBA) {
-	j := dstY*dst.Stride + dstX*4
-	d := dst.Pix[j : j+4 : j+4]
-
-	x0 := int(math.Floor(xf))
-	y0 := int(math.Floor(yf))
-	bounds := src.Bounds()
-	if !image.Pt(x0, y0).In(image.Rect(bounds.Min.X-1, bounds.Min.Y-1, bounds.Max.X, bounds.Max.Y)) {
-		d[0] = bgColor.R
-		d[1] = bgColor.G
-		d[2] = bgColor.B
-		d[3] = bgColor.A
-		return
-	}
-
-	xq := xf - float64(x0)
-	yq := yf - float64(y0)
-	points := [4]image.Point{
-		{x0, y0},
-		{x0 + 1, y0},
-		{x0, y0 + 1},
-		{x0 + 1, y0 + 1},
-	}
-	weights := [4]float64{
-		(1 - xq) * (1 - yq),
-		xq * (1 - yq),
-		(1 - xq) * yq,
-		xq * yq,
-	}
-
-	var r, g, b, a float64
-	for i := 0; i < 4; i++ {
-		p := points[i]
-		w := weights[i]
-		if p.In(bounds) {
-			i := p.Y*src.Stride + p.X*4
-			s := src.Pix[i : i+4 : i+4]
-			wa := float64(s[3]) * w
-			r += float64(s[0]) * wa
-			g += float64(s[1]) * wa
-			b += float64(s[2]) * wa
-			a += wa
-		} else {
-			wa := float64(bgColor.A) * w
-			r += float64(bgColor.R) * wa
-			g += float64(bgColor.G) * wa
-			b += float64(bgColor.B) * wa
-			a += wa
-		}
-	}
-	if a != 0 {
-		aInv := 1 / a
-		d[0] = clamp(r * aInv)
-		d[1] = clamp(g * aInv)
-		d[2] = clamp(b * aInv)
-		d[3] = clamp(a)
-	}
-}