diff options
| author | Nigel Tao <nigeltao@golang.org> | 2011-12-21 10:29:21 +1100 |
|---|---|---|
| committer | Nigel Tao <nigeltao@golang.org> | 2011-12-21 10:29:21 +1100 |
| commit | 553bc2fd55434f7379d489b4af5fb90e2c6e9f4c (patch) | |
| tree | 85430ff264a50b3a0f680976a0386cf4e17fd69c /src/pkg/image/draw/draw.go | |
| parent | 865e34622fee665b8042b154b48ef81567199336 (diff) | |
| download | go-553bc2fd55434f7379d489b4af5fb90e2c6e9f4c.tar.gz | |
image/ycbcr: move the Y'CbCr types into image and image/color.
R=r, rsc
CC=golang-dev
http://codereview.appspot.com/5493084
Diffstat (limited to 'src/pkg/image/draw/draw.go')
| -rw-r--r-- | src/pkg/image/draw/draw.go | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/src/pkg/image/draw/draw.go b/src/pkg/image/draw/draw.go index af02639cc..228ed6e71 100644 --- a/src/pkg/image/draw/draw.go +++ b/src/pkg/image/draw/draw.go @@ -11,7 +11,6 @@ package draw import ( "image" "image/color" - "image/ycbcr" ) // m is the maximum color value returned by image.Color.RGBA. @@ -81,7 +80,7 @@ func DrawMask(dst Image, r image.Rectangle, src image.Image, sp image.Point, mas case *image.NRGBA: drawNRGBAOver(dst0, r, src0, sp) return - case *ycbcr.YCbCr: + case *image.YCbCr: drawYCbCr(dst0, r, src0, sp) return } @@ -104,7 +103,7 @@ func DrawMask(dst Image, r image.Rectangle, src image.Image, sp image.Point, mas case *image.NRGBA: drawNRGBASrc(dst0, r, src0, sp) return - case *ycbcr.YCbCr: + case *image.YCbCr: drawYCbCr(dst0, r, src0, sp) return } @@ -346,8 +345,8 @@ func drawNRGBASrc(dst *image.RGBA, r image.Rectangle, src *image.NRGBA, sp image } } -func drawYCbCr(dst *image.RGBA, r image.Rectangle, src *ycbcr.YCbCr, sp image.Point) { - // A YCbCr image is always fully opaque, and so if the mask is implicitly nil +func drawYCbCr(dst *image.RGBA, r image.Rectangle, src *image.YCbCr, sp image.Point) { + // An image.YCbCr is always fully opaque, and so if the mask is implicitly nil // (i.e. fully opaque) then the op is effectively always Src. var ( yy, cb, cr uint8 @@ -357,7 +356,7 @@ func drawYCbCr(dst *image.RGBA, r image.Rectangle, src *ycbcr.YCbCr, sp image.Po y0 := r.Min.Y - dst.Rect.Min.Y y1 := r.Max.Y - dst.Rect.Min.Y switch src.SubsampleRatio { - case ycbcr.SubsampleRatio422: + case image.YCbCrSubsampleRatio422: for y, sy := y0, sp.Y; y != y1; y, sy = y+1, sy+1 { dpix := dst.Pix[y*dst.Stride:] for x, sx := x0, sp.X; x != x1; x, sx = x+4, sx+1 { @@ -365,14 +364,14 @@ func drawYCbCr(dst *image.RGBA, r image.Rectangle, src *ycbcr.YCbCr, sp image.Po yy = src.Y[sy*src.YStride+sx] cb = src.Cb[sy*src.CStride+i] cr = src.Cr[sy*src.CStride+i] - rr, gg, bb := ycbcr.YCbCrToRGB(yy, cb, cr) + rr, gg, bb := color.YCbCrToRGB(yy, cb, cr) dpix[x+0] = rr dpix[x+1] = gg dpix[x+2] = bb dpix[x+3] = 255 } } - case ycbcr.SubsampleRatio420: + case image.YCbCrSubsampleRatio420: for y, sy := y0, sp.Y; y != y1; y, sy = y+1, sy+1 { dpix := dst.Pix[y*dst.Stride:] for x, sx := x0, sp.X; x != x1; x, sx = x+4, sx+1 { @@ -380,7 +379,7 @@ func drawYCbCr(dst *image.RGBA, r image.Rectangle, src *ycbcr.YCbCr, sp image.Po yy = src.Y[sy*src.YStride+sx] cb = src.Cb[j*src.CStride+i] cr = src.Cr[j*src.CStride+i] - rr, gg, bb := ycbcr.YCbCrToRGB(yy, cb, cr) + rr, gg, bb := color.YCbCrToRGB(yy, cb, cr) dpix[x+0] = rr dpix[x+1] = gg dpix[x+2] = bb @@ -395,7 +394,7 @@ func drawYCbCr(dst *image.RGBA, r image.Rectangle, src *ycbcr.YCbCr, sp image.Po yy = src.Y[sy*src.YStride+sx] cb = src.Cb[sy*src.CStride+sx] cr = src.Cr[sy*src.CStride+sx] - rr, gg, bb := ycbcr.YCbCrToRGB(yy, cb, cr) + rr, gg, bb := color.YCbCrToRGB(yy, cb, cr) dpix[x+0] = rr dpix[x+1] = gg dpix[x+2] = bb |