本文整理汇总了C++中GrGLSLPPFragmentBuilder::declAppendf方法的典型用法代码示例。如果您正苦于以下问题：C++ GrGLSLPPFragmentBuilder::declAppendf方法的具体用法？C++ GrGLSLPPFragmentBuilder::declAppendf怎么用？C++ GrGLSLPPFragmentBuilder::declAppendf使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GrGLSLPPFragmentBuilder的用法示例。
在下文中一共展示了GrGLSLPPFragmentBuilder::declAppendf方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: onEmitCode
void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override {
const PLSFinishEffect& fe = args.fGP.cast<PLSFinishEffect>();
GrGLSLVertexBuilder* vsBuilder = args.fVertBuilder;
GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;
fUseEvenOdd = uniformHandler->addUniform(kFragment_GrShaderFlag,
kFloat_GrSLType, kLow_GrSLPrecision,
"useEvenOdd");
const char* useEvenOdd = uniformHandler->getUniformCStr(fUseEvenOdd);
varyingHandler->emitAttributes(fe);
this->setupPosition(vsBuilder, gpArgs, fe.inPosition()->fName);
this->emitTransforms(vsBuilder, varyingHandler, uniformHandler, gpArgs->fPositionVar,
fe.inPosition()->fName, fe.localMatrix(), args.fTransformsIn,
args.fTransformsOut);
GrGLSLPPFragmentBuilder* fsBuilder = args.fFragBuilder;
SkAssertResult(fsBuilder->enableFeature(
GrGLSLFragmentShaderBuilder::kPixelLocalStorage_GLSLFeature));
fsBuilder->declAppendf(GR_GL_PLS_PATH_DATA_DECL);
fsBuilder->codeAppend("float coverage;");
fsBuilder->codeAppendf("if (%s != 0.0) {", useEvenOdd);
fsBuilder->codeAppend("coverage = float(abs(pls.windings[0]) % 2) * 0.25;");
fsBuilder->codeAppend("coverage += float(abs(pls.windings[1]) % 2) * 0.25;");
fsBuilder->codeAppend("coverage += float(abs(pls.windings[2]) % 2) * 0.25;");
fsBuilder->codeAppend("coverage += float(abs(pls.windings[3]) % 2) * 0.25;");
fsBuilder->codeAppend("} else {");
fsBuilder->codeAppend("coverage = pls.windings[0] != 0 ? 0.25 : 0.0;");
fsBuilder->codeAppend("coverage += pls.windings[1] != 0 ? 0.25 : 0.0;");
fsBuilder->codeAppend("coverage += pls.windings[2] != 0 ? 0.25 : 0.0;");
fsBuilder->codeAppend("coverage += pls.windings[3] != 0 ? 0.25 : 0.0;");
fsBuilder->codeAppend("}");
if (!fe.colorIgnored()) {
this->setupUniformColor(fsBuilder, uniformHandler, args.fOutputColor,
&fColorUniform);
}
fsBuilder->codeAppendf("%s = vec4(coverage);", args.fOutputCoverage);
fsBuilder->codeAppendf("%s = vec4(1.0, 0.0, 1.0, 1.0);", args.fOutputColor);
}