| /* |
| * Copyright 2018 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| /************************************************************************************************** |
| *** This file was autogenerated from GrAlphaThresholdFragmentProcessor.fp; do not modify. |
| **************************************************************************************************/ |
| #include "GrAlphaThresholdFragmentProcessor.h" |
| |
| inline GrFragmentProcessor::OptimizationFlags GrAlphaThresholdFragmentProcessor::optFlags( |
| float outerThreshold) { |
| if (outerThreshold >= 1.0) { |
| return kPreservesOpaqueInput_OptimizationFlag | |
| kCompatibleWithCoverageAsAlpha_OptimizationFlag; |
| } else { |
| return kCompatibleWithCoverageAsAlpha_OptimizationFlag; |
| } |
| } |
| #include "include/gpu/GrTexture.h" |
| #include "src/gpu/glsl/GrGLSLFragmentProcessor.h" |
| #include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h" |
| #include "src/gpu/glsl/GrGLSLProgramBuilder.h" |
| #include "src/sksl/SkSLCPP.h" |
| #include "src/sksl/SkSLUtil.h" |
| class GrGLSLAlphaThresholdFragmentProcessor : public GrGLSLFragmentProcessor { |
| public: |
| GrGLSLAlphaThresholdFragmentProcessor() {} |
| void emitCode(EmitArgs& args) override { |
| GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
| const GrAlphaThresholdFragmentProcessor& _outer = |
| args.fFp.cast<GrAlphaThresholdFragmentProcessor>(); |
| (void)_outer; |
| auto innerThreshold = _outer.innerThreshold; |
| (void)innerThreshold; |
| auto outerThreshold = _outer.outerThreshold; |
| (void)outerThreshold; |
| innerThresholdVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf_GrSLType, |
| "innerThreshold"); |
| outerThresholdVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf_GrSLType, |
| "outerThreshold"); |
| SkString sk_TransformedCoords2D_0 = |
| fragBuilder->ensureCoords2D(args.fTransformedCoords[0].fVaryingPoint); |
| fragBuilder->codeAppendf( |
| "half4 color = %s;\nhalf4 mask_color = sample(%s, %s).%s;\nif (mask_color.w < 0.5) " |
| "{\n if (color.w > %s) {\n half scale = %s / color.w;\n color.xyz " |
| "*= scale;\n color.w = %s;\n }\n} else if (color.w < %s) {\n half " |
| "scale = %s / max(0.0010000000474974513, color.w);\n color.xyz *= scale;\n " |
| "color.w = %s;\n}\n%s = color;\n", |
| args.fInputColor, |
| fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]), |
| sk_TransformedCoords2D_0.c_str(), |
| fragBuilder->getProgramBuilder() |
| ->samplerSwizzle(args.fTexSamplers[0]) |
| .asString() |
| .c_str(), |
| args.fUniformHandler->getUniformCStr(outerThresholdVar), |
| args.fUniformHandler->getUniformCStr(outerThresholdVar), |
| args.fUniformHandler->getUniformCStr(outerThresholdVar), |
| args.fUniformHandler->getUniformCStr(innerThresholdVar), |
| args.fUniformHandler->getUniformCStr(innerThresholdVar), |
| args.fUniformHandler->getUniformCStr(innerThresholdVar), args.fOutputColor); |
| } |
| |
| private: |
| void onSetData(const GrGLSLProgramDataManager& pdman, |
| const GrFragmentProcessor& _proc) override { |
| const GrAlphaThresholdFragmentProcessor& _outer = |
| _proc.cast<GrAlphaThresholdFragmentProcessor>(); |
| { |
| pdman.set1f(innerThresholdVar, (_outer.innerThreshold)); |
| pdman.set1f(outerThresholdVar, (_outer.outerThreshold)); |
| } |
| } |
| UniformHandle innerThresholdVar; |
| UniformHandle outerThresholdVar; |
| }; |
| GrGLSLFragmentProcessor* GrAlphaThresholdFragmentProcessor::onCreateGLSLInstance() const { |
| return new GrGLSLAlphaThresholdFragmentProcessor(); |
| } |
| void GrAlphaThresholdFragmentProcessor::onGetGLSLProcessorKey(const GrShaderCaps& caps, |
| GrProcessorKeyBuilder* b) const {} |
| bool GrAlphaThresholdFragmentProcessor::onIsEqual(const GrFragmentProcessor& other) const { |
| const GrAlphaThresholdFragmentProcessor& that = other.cast<GrAlphaThresholdFragmentProcessor>(); |
| (void)that; |
| if (mask != that.mask) return false; |
| if (innerThreshold != that.innerThreshold) return false; |
| if (outerThreshold != that.outerThreshold) return false; |
| return true; |
| } |
| GrAlphaThresholdFragmentProcessor::GrAlphaThresholdFragmentProcessor( |
| const GrAlphaThresholdFragmentProcessor& src) |
| : INHERITED(kGrAlphaThresholdFragmentProcessor_ClassID, src.optimizationFlags()) |
| , maskCoordTransform(src.maskCoordTransform) |
| , mask(src.mask) |
| , innerThreshold(src.innerThreshold) |
| , outerThreshold(src.outerThreshold) { |
| this->setTextureSamplerCnt(1); |
| this->addCoordTransform(&maskCoordTransform); |
| } |
| std::unique_ptr<GrFragmentProcessor> GrAlphaThresholdFragmentProcessor::clone() const { |
| return std::unique_ptr<GrFragmentProcessor>(new GrAlphaThresholdFragmentProcessor(*this)); |
| } |
| const GrFragmentProcessor::TextureSampler& GrAlphaThresholdFragmentProcessor::onTextureSampler( |
| int index) const { |
| return IthTextureSampler(index, mask); |
| } |
| GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrAlphaThresholdFragmentProcessor); |
| #if GR_TEST_UTILS |
| std::unique_ptr<GrFragmentProcessor> GrAlphaThresholdFragmentProcessor::TestCreate( |
| GrProcessorTestData* testData) { |
| auto [maskProxy, ct, at] = testData->randomAlphaOnlyProxy(); |
| // Make the inner and outer thresholds be in (0, 1) exclusive and be sorted correctly. |
| float innerThresh = testData->fRandom->nextUScalar1() * .99f + 0.005f; |
| float outerThresh = testData->fRandom->nextUScalar1() * .99f + 0.005f; |
| const int kMaxWidth = 1000; |
| const int kMaxHeight = 1000; |
| uint32_t width = testData->fRandom->nextULessThan(kMaxWidth); |
| uint32_t height = testData->fRandom->nextULessThan(kMaxHeight); |
| uint32_t x = testData->fRandom->nextULessThan(kMaxWidth - width); |
| uint32_t y = testData->fRandom->nextULessThan(kMaxHeight - height); |
| SkIRect bounds = SkIRect::MakeXYWH(x, y, width, height); |
| return GrAlphaThresholdFragmentProcessor::Make(std::move(maskProxy), innerThresh, outerThresh, |
| bounds); |
| } |
| #endif |