void emitBlendCodeForDstRead(GrGLXPBuilder* pb, const char* srcColor, const char* dstColor,
const char* outColor, const GrXferProcessor& proc) override {
GrGLXPFragmentBuilder* fsBuilder = pb->getFragmentShaderBuilder();
fKUni = pb->addUniform(GrGLProgramBuilder::kFragment_Visibility,
kVec4f_GrSLType, kDefault_GrSLPrecision,
"k");
const char* kUni = pb->getUniformCStr(fKUni);
add_arithmetic_code(fsBuilder, srcColor, dstColor, outColor, kUni, fEnforcePMColor);
}
void emitCode(EmitArgs& args) override {
GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
SkString dstColor("dstColor");
this->emitChild(0, nullptr, &dstColor, args);
fKUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
kVec4f_GrSLType, kDefault_GrSLPrecision,
"k");
const char* kUni = args.fBuilder->getUniformCStr(fKUni);
add_arithmetic_code(fsBuilder, args.fInputColor, dstColor.c_str(), args.fOutputColor, kUni,
fEnforcePMColor);
}
void emitCode(EmitArgs& args) override {
GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
fsBuilder->codeAppend("vec4 bgColor = ");
fsBuilder->appendTextureLookup(args.fSamplers[0], args.fCoords[0].c_str(),
args.fCoords[0].getType());
fsBuilder->codeAppendf(";");
const char* dstColor = "bgColor";
fKUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
kVec4f_GrSLType, kDefault_GrSLPrecision,
"k");
const char* kUni = args.fBuilder->getUniformCStr(fKUni);
add_arithmetic_code(fsBuilder, args.fInputColor, dstColor, args.fOutputColor, kUni,
fEnforcePMColor);
}
void onEmitCode(const EmitArgs& args) override {
GrGLFPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
const char* dstColor = fsBuilder->dstColor();
fKUni = args.fPB->addUniform(GrGLProgramBuilder::kFragment_Visibility,
kVec4f_GrSLType, kDefault_GrSLPrecision,
"k");
const char* kUni = args.fPB->getUniformCStr(fKUni);
add_arithmetic_code(fsBuilder, args.fInputColor, dstColor, args.fOutputPrimary, kUni,
fEnforcePMColor);
fsBuilder->codeAppendf("%s = %s * %s + (vec4(1.0) - %s) * %s;",
args.fOutputPrimary, args.fOutputPrimary, args.fInputCoverage,
args.fInputCoverage, dstColor);
}
void emitCode(EmitArgs& args) override {
const GrArithmeticFP& arith = args.fFp.cast<GrArithmeticFP>();
GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
SkString dstColor("dstColor");
this->emitChild(0, nullptr, &dstColor, args);
fKUni = args.fUniformHandler->addUniform(kFragment_GrShaderFlag,
kVec4f_GrSLType, kDefault_GrSLPrecision,
"k");
const char* kUni = args.fUniformHandler->getUniformCStr(fKUni);
add_arithmetic_code(fragBuilder,
args.fInputColor,
dstColor.c_str(),
args.fOutputColor,
kUni,
arith.enforcePMColor());
}
void emitBlendCodeForDstRead(GrGLSLXPFragmentBuilder* fragBuilder,
GrGLSLUniformHandler* uniformHandler,
const char* srcColor,
const char* srcCoverage,
const char* dstColor,
const char* outColor,
const char* outColorSecondary,
const GrXferProcessor& proc) override {
fKUni = uniformHandler->addUniform(kFragment_GrShaderFlag,
kVec4f_GrSLType, kDefault_GrSLPrecision,
"k");
const char* kUni = uniformHandler->getUniformCStr(fKUni);
add_arithmetic_code(fragBuilder, srcColor, dstColor, outColor, kUni, fEnforcePMColor);
// Apply coverage.
INHERITED::DefaultCoverageModulation(fragBuilder, srcCoverage, dstColor, outColor,
outColorSecondary, proc);
}
void emitCode(GrGLFPBuilder* builder,
const GrFragmentProcessor& fp,
const char* outputColor,
const char* inputColor,
const TransformedCoordsArray& coords,
const TextureSamplerArray& samplers) override {
GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
fsBuilder->codeAppend("vec4 bgColor = ");
fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), coords[0].getType());
fsBuilder->codeAppendf(";");
const char* dstColor = "bgColor";
fKUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
kVec4f_GrSLType, kDefault_GrSLPrecision,
"k");
const char* kUni = builder->getUniformCStr(fKUni);
add_arithmetic_code(fsBuilder, inputColor, dstColor, outputColor, kUni, fEnforcePMColor);
}