| /* |
| * 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 GrDualIntervalGradientColorizer.fp; do not modify. |
| **************************************************************************************************/ |
| #include "GrDualIntervalGradientColorizer.h" |
| |
| #include "src/core/SkUtils.h" |
| #include "src/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 GrGLSLDualIntervalGradientColorizer : public GrGLSLFragmentProcessor { |
| public: |
| GrGLSLDualIntervalGradientColorizer() {} |
| void emitCode(EmitArgs& args) override { |
| GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
| const GrDualIntervalGradientColorizer& _outer = |
| args.fFp.cast<GrDualIntervalGradientColorizer>(); |
| (void)_outer; |
| auto scale01 = _outer.scale01; |
| (void)scale01; |
| auto bias01 = _outer.bias01; |
| (void)bias01; |
| auto scale23 = _outer.scale23; |
| (void)scale23; |
| auto bias23 = _outer.bias23; |
| (void)bias23; |
| auto threshold = _outer.threshold; |
| (void)threshold; |
| scale01Var = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, |
| kFloat4_GrSLType, "scale01"); |
| bias01Var = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, |
| kFloat4_GrSLType, "bias01"); |
| scale23Var = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, |
| kFloat4_GrSLType, "scale23"); |
| bias23Var = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, |
| kFloat4_GrSLType, "bias23"); |
| thresholdVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, |
| kHalf_GrSLType, "threshold"); |
| fragBuilder->codeAppendf( |
| R"SkSL(half t = half(%s.x); |
| float4 scale, bias; |
| if (t < %s) { |
| scale = %s; |
| bias = %s; |
| } else { |
| scale = %s; |
| bias = %s; |
| } |
| %s = half4(float(t) * scale + bias); |
| )SkSL", |
| args.fSampleCoord, args.fUniformHandler->getUniformCStr(thresholdVar), |
| args.fUniformHandler->getUniformCStr(scale01Var), |
| args.fUniformHandler->getUniformCStr(bias01Var), |
| args.fUniformHandler->getUniformCStr(scale23Var), |
| args.fUniformHandler->getUniformCStr(bias23Var), args.fOutputColor); |
| } |
| |
| private: |
| void onSetData(const GrGLSLProgramDataManager& pdman, |
| const GrFragmentProcessor& _proc) override { |
| const GrDualIntervalGradientColorizer& _outer = |
| _proc.cast<GrDualIntervalGradientColorizer>(); |
| { |
| const SkPMColor4f& scale01Value = _outer.scale01; |
| if (scale01Prev != scale01Value) { |
| scale01Prev = scale01Value; |
| pdman.set4fv(scale01Var, 1, scale01Value.vec()); |
| } |
| const SkPMColor4f& bias01Value = _outer.bias01; |
| if (bias01Prev != bias01Value) { |
| bias01Prev = bias01Value; |
| pdman.set4fv(bias01Var, 1, bias01Value.vec()); |
| } |
| const SkPMColor4f& scale23Value = _outer.scale23; |
| if (scale23Prev != scale23Value) { |
| scale23Prev = scale23Value; |
| pdman.set4fv(scale23Var, 1, scale23Value.vec()); |
| } |
| const SkPMColor4f& bias23Value = _outer.bias23; |
| if (bias23Prev != bias23Value) { |
| bias23Prev = bias23Value; |
| pdman.set4fv(bias23Var, 1, bias23Value.vec()); |
| } |
| float thresholdValue = _outer.threshold; |
| if (thresholdPrev != thresholdValue) { |
| thresholdPrev = thresholdValue; |
| pdman.set1f(thresholdVar, thresholdValue); |
| } |
| } |
| } |
| SkPMColor4f scale01Prev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN}; |
| SkPMColor4f bias01Prev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN}; |
| SkPMColor4f scale23Prev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN}; |
| SkPMColor4f bias23Prev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN}; |
| float thresholdPrev = SK_FloatNaN; |
| UniformHandle scale01Var; |
| UniformHandle bias01Var; |
| UniformHandle scale23Var; |
| UniformHandle bias23Var; |
| UniformHandle thresholdVar; |
| }; |
| GrGLSLFragmentProcessor* GrDualIntervalGradientColorizer::onCreateGLSLInstance() const { |
| return new GrGLSLDualIntervalGradientColorizer(); |
| } |
| void GrDualIntervalGradientColorizer::onGetGLSLProcessorKey(const GrShaderCaps& caps, |
| GrProcessorKeyBuilder* b) const {} |
| bool GrDualIntervalGradientColorizer::onIsEqual(const GrFragmentProcessor& other) const { |
| const GrDualIntervalGradientColorizer& that = other.cast<GrDualIntervalGradientColorizer>(); |
| (void)that; |
| if (scale01 != that.scale01) return false; |
| if (bias01 != that.bias01) return false; |
| if (scale23 != that.scale23) return false; |
| if (bias23 != that.bias23) return false; |
| if (threshold != that.threshold) return false; |
| return true; |
| } |
| GrDualIntervalGradientColorizer::GrDualIntervalGradientColorizer( |
| const GrDualIntervalGradientColorizer& src) |
| : INHERITED(kGrDualIntervalGradientColorizer_ClassID, src.optimizationFlags()) |
| , scale01(src.scale01) |
| , bias01(src.bias01) |
| , scale23(src.scale23) |
| , bias23(src.bias23) |
| , threshold(src.threshold) { |
| this->cloneAndRegisterAllChildProcessors(src); |
| this->setUsesSampleCoordsDirectly(); |
| } |
| std::unique_ptr<GrFragmentProcessor> GrDualIntervalGradientColorizer::clone() const { |
| return std::make_unique<GrDualIntervalGradientColorizer>(*this); |
| } |
| #if GR_TEST_UTILS |
| SkString GrDualIntervalGradientColorizer::dumpInfo() const { |
| return SkStringPrintf( |
| "DualIntervalGradientColorizer(scale01=float4(%f, %f, %f, %f), bias01=float4(%f, %f, " |
| "%f, %f), scale23=float4(%f, %f, %f, %f), bias23=float4(%f, %f, %f, %f), threshold=%f)", |
| scale01.fR, scale01.fG, scale01.fB, scale01.fA, bias01.fR, bias01.fG, bias01.fB, |
| bias01.fA, scale23.fR, scale23.fG, scale23.fB, scale23.fA, bias23.fR, bias23.fG, |
| bias23.fB, bias23.fA, threshold); |
| } |
| #endif |
| |
| std::unique_ptr<GrFragmentProcessor> GrDualIntervalGradientColorizer::Make(const SkPMColor4f& c0, |
| const SkPMColor4f& c1, |
| const SkPMColor4f& c2, |
| const SkPMColor4f& c3, |
| float threshold) { |
| // Derive scale and biases from the 4 colors and threshold |
| auto vc0 = Sk4f::Load(c0.vec()); |
| auto vc1 = Sk4f::Load(c1.vec()); |
| auto scale01 = (vc1 - vc0) / threshold; |
| // bias01 = c0 |
| |
| auto vc2 = Sk4f::Load(c2.vec()); |
| auto vc3 = Sk4f::Load(c3.vec()); |
| auto scale23 = (vc3 - vc2) / (1 - threshold); |
| auto bias23 = vc2 - threshold * scale23; |
| |
| return std::unique_ptr<GrFragmentProcessor>(new GrDualIntervalGradientColorizer( |
| {scale01[0], scale01[1], scale01[2], scale01[3]}, c0, |
| {scale23[0], scale23[1], scale23[2], scale23[3]}, |
| {bias23[0], bias23[1], bias23[2], bias23[3]}, threshold)); |
| } |