void GrPorterDuffXPFactory::getInvariantBlendedColor(const GrProcOptInfo& colorPOI, InvariantBlendedColor* blendedColor) const { // Find the blended color info based on the formula that does not have coverage. BlendFormula colorFormula = gBlendTable[colorPOI.isOpaque()][0][fXfermode]; if (colorFormula.usesDstColor()) { blendedColor->fWillBlendWithDst = true; blendedColor->fKnownColorFlags = kNone_GrColorComponentFlags; return; } blendedColor->fWillBlendWithDst = false; SkASSERT(kAdd_GrBlendEquation == colorFormula.fBlendEquation); switch (colorFormula.fSrcCoeff) { case kZero_GrBlendCoeff: blendedColor->fKnownColor = 0; blendedColor->fKnownColorFlags = kRGBA_GrColorComponentFlags; return; case kOne_GrBlendCoeff: blendedColor->fKnownColor = colorPOI.color(); blendedColor->fKnownColorFlags = colorPOI.validFlags(); return; default: blendedColor->fKnownColorFlags = kNone_GrColorComponentFlags; return; } }