diff options
| author |  senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2012-01-03 22:42:26 +0000 |
|---|---|---|
| committer | senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2012-01-03 22:42:26 +0000 |
| commit | df28f077b05bcd7ad4415b7ec29631a221b0f3fa (patch) | |
| tree | c05e08b0f34687a82aa072cfeccbf2b8973e2723 /src/effects/SkColorMatrixFilter.cpp | |
| parent | 8cddc8d0ea02b3476fd57668cf9b25ba5b9770d8 (diff) | |
Improve the quality of color matrix filters by using SkPremultiplyARGBInline.
This is closer (but not exactly the same as) WebKit's implementation.
Review URL: http://codereview.appspot.com/5504117/
git-svn-id: http://skia.googlecode.com/svn/trunk@2955 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'src/effects/SkColorMatrixFilter.cpp')
| -rw-r--r-- | src/effects/SkColorMatrixFilter.cpp | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/src/effects/SkColorMatrixFilter.cpp b/src/effects/SkColorMatrixFilter.cpp index 95f4b0bac4..8a4df66a38 100644 --- a/src/effects/SkColorMatrixFilter.cpp +++ b/src/effects/SkColorMatrixFilter.cpp @@ -270,13 +270,7 @@ void SkColorMatrixFilter::filterSpan(const SkPMColor src[], int count, b = pin(result[2], SK_B32_MASK); a = pin(result[3], SK_A32_MASK); // re-prepremultiply if needed - if (255 != a) { - int scale = SkAlpha255To256(a); - r = SkAlphaMul(r, scale); - g = SkAlphaMul(g, scale); - b = SkAlphaMul(b, scale); - } - dst[i] = SkPackARGB32(a, r, g, b); + dst[i] = SkPremultiplyARGBInline(a, r, g, b); } } |