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fix vertex alpha calculation in GrTesselator

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BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2405813003

Review-Url: https://codereview.chromium.org/2405813003
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lsalzman 2016-10-11 12:20:17 -07:00 committed by Commit bot
parent ebcb8aadae
commit 8c8fceff4d
1 changed files with 1 additions and 1 deletions
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2
src/gpu/GrTessellator.cpp
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@ -204,7 +204,7 @@ inline void* emit_vertex(Vertex* v, const AAParams* aaParams, void* data) {
if (aaParams->fTweakAlpha) {
auto d = static_cast<GrDefaultGeoProcFactory::PositionColorAttr*>(data);
d->fPosition = v->fPoint;
d->fColor = SkAlphaMulQ(aaParams->fColor, v->fAlpha);
d->fColor = SkAlphaMulQ(aaParams->fColor, SkAlpha255To256(v->fAlpha));
d++;
return d;
}