diff options
| author |  senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2012-01-05 16:59:27 +0000 |
|---|---|---|
| committer | senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2012-01-05 16:59:27 +0000 |
| commit | c3e159a325892e5a271c06285631c2f5a2277617 (patch) | |
| tree | b78a1e201fcff61e402ee1b558ce0fee37ee675e /gm/colormatrix.cpp | |
| parent | dc9a695a62ffe0f18e2835bffd325b60b64b547b (diff) | |
When applying a color matrix, unpremultiply the source, and premultiply
the result.
Review URL: http://codereview.appspot.com/5520046/
git-svn-id: http://skia.googlecode.com/svn/trunk@2969 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'gm/colormatrix.cpp')
| -rw-r--r-- | gm/colormatrix.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gm/colormatrix.cpp b/gm/colormatrix.cpp index 7d57b3278b..0a4acfd84f 100644 --- a/gm/colormatrix.cpp +++ b/gm/colormatrix.cpp @@ -90,6 +90,19 @@ protected: matrix.setYUV2RGB(); filter->setMatrix(matrix); canvas->drawBitmap(fBitmap, 80, 160, &paint); + + SkScalar s1 = SK_Scalar1; + SkScalar s255 = SkIntToScalar(255); + // Move red into alpha, set color to white + SkScalar data[20] = { + 0, 0, 0, 0, s255, + 0, 0, 0, 0, s255, + 0, 0, 0, 0, s255, + s1, 0, 0, 0, 0, + }; + + filter->setArray(data); + canvas->drawBitmap(fBitmap, 160, 160, &paint); } private: |