bool SkPaintToGrPaintWithTexture(GrContext* context,
const SkPaint& paint,
const SkMatrix& viewM,
const GrFragmentProcessor* fp,
bool textureIsAlphaOnly,
GrPaint* grPaint) {
SkAutoTUnref<const GrFragmentProcessor> shaderFP;
if (textureIsAlphaOnly) {
if (const SkShader* shader = paint.getShader()) {
shaderFP.reset(shader->asFragmentProcessor(context,
viewM,
nullptr,
paint.getFilterQuality()));
if (!shaderFP) {
return false;
}
const GrFragmentProcessor* fpSeries[] = { shaderFP.get(), fp };
shaderFP.reset(GrFragmentProcessor::RunInSeries(fpSeries, 2));
} else {
shaderFP.reset(GrFragmentProcessor::MulOutputByInputUnpremulColor(fp));
}
} else {
shaderFP.reset(GrFragmentProcessor::MulOutputByInputAlpha(fp));
}
return SkPaintToGrPaintReplaceShader(context, paint, shaderFP.get(), grPaint);
}
bool SkPaintToGrPaintWithTexture(GrContext* context,
const GrColorSpaceInfo& colorSpaceInfo,
const SkPaint& paint,
const SkMatrix& viewM,
std::unique_ptr<GrFragmentProcessor> fp,
bool textureIsAlphaOnly,
GrPaint* grPaint) {
std::unique_ptr<GrFragmentProcessor> shaderFP;
if (textureIsAlphaOnly) {
if (const auto* shader = as_SB(paint.getShader())) {
shaderFP = shader->asFragmentProcessor(GrFPArgs(
context, &viewM, nullptr, paint.getFilterQuality(), &colorSpaceInfo));
if (!shaderFP) {
return false;
}
std::unique_ptr<GrFragmentProcessor> fpSeries[] = { std::move(shaderFP), std::move(fp) };
shaderFP = GrFragmentProcessor::RunInSeries(fpSeries, 2);
} else {
shaderFP = GrFragmentProcessor::MakeInputPremulAndMulByOutput(std::move(fp));
}
} else {
shaderFP = GrFragmentProcessor::MulChildByInputAlpha(std::move(fp));
}
return SkPaintToGrPaintReplaceShader(context, colorSpaceInfo, paint, std::move(shaderFP),
grPaint);
}
