diff options
Diffstat (limited to 'core/SkDraw.cpp')
-rw-r--r-- | core/SkDraw.cpp | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/core/SkDraw.cpp b/core/SkDraw.cpp index a74e3c0f..9347efe4 100644 --- a/core/SkDraw.cpp +++ b/core/SkDraw.cpp @@ -2432,6 +2432,8 @@ size_t SkTriColorShader::contextSize() const { return sizeof(TriColorShaderContext); } void SkTriColorShader::TriColorShaderContext::shadeSpan(int x, int y, SkPMColor dstC[], int count) { + const int alphaScale = Sk255To256(this->getPaintAlpha()); + SkPoint src; for (int i = 0; i < count; i++) { @@ -2450,9 +2452,15 @@ void SkTriColorShader::TriColorShaderContext::shadeSpan(int x, int y, SkPMColor scale0 = 0; } + if (256 != alphaScale) { + scale0 = SkAlphaMul(scale0, alphaScale); + scale1 = SkAlphaMul(scale1, alphaScale); + scale2 = SkAlphaMul(scale2, alphaScale); + } + dstC[i] = SkAlphaMulQ(fColors[0], scale0) + - SkAlphaMulQ(fColors[1], scale1) + - SkAlphaMulQ(fColors[2], scale2); + SkAlphaMulQ(fColors[1], scale1) + + SkAlphaMulQ(fColors[2], scale2); } } |