1 /* 2 * Copyright 2018 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 /************************************************************************************************** 9 *** This file was autogenerated from GrSingleIntervalGradientColorizer.fp; do not modify. 10 **************************************************************************************************/ 11 #include "GrSingleIntervalGradientColorizer.h" 12 #include "glsl/GrGLSLFragmentProcessor.h" 13 #include "glsl/GrGLSLFragmentShaderBuilder.h" 14 #include "glsl/GrGLSLProgramBuilder.h" 15 #include "GrTexture.h" 16 #include "SkSLCPP.h" 17 #include "SkSLUtil.h" 18 class GrGLSLSingleIntervalGradientColorizer : public GrGLSLFragmentProcessor { 19 public: 20 GrGLSLSingleIntervalGradientColorizer() {} 21 void emitCode(EmitArgs& args) override { 22 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; 23 const GrSingleIntervalGradientColorizer& _outer = 24 args.fFp.cast<GrSingleIntervalGradientColorizer>(); 25 (void)_outer; 26 auto start = _outer.start(); 27 (void)start; 28 auto end = _outer.end(); 29 (void)end; 30 fStartVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType, 31 kDefault_GrSLPrecision, "start"); 32 fEndVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType, 33 kDefault_GrSLPrecision, "end"); 34 fragBuilder->codeAppendf("half t = %s.x;\n%s = (1.0 - t) * %s + t * %s;\n", 35 args.fInputColor, args.fOutputColor, 36 args.fUniformHandler->getUniformCStr(fStartVar), 37 args.fUniformHandler->getUniformCStr(fEndVar)); 38 } 39 40 private: 41 void onSetData(const GrGLSLProgramDataManager& pdman, 42 const GrFragmentProcessor& _proc) override { 43 const GrSingleIntervalGradientColorizer& _outer = 44 _proc.cast<GrSingleIntervalGradientColorizer>(); 45 { 46 const SkPMColor4f& startValue = _outer.start(); 47 if (fStartPrev != startValue) { 48 fStartPrev = startValue; 49 pdman.set4fv(fStartVar, 1, startValue.vec()); 50 } 51 const SkPMColor4f& endValue = _outer.end(); 52 if (fEndPrev != endValue) { 53 fEndPrev = endValue; 54 pdman.set4fv(fEndVar, 1, endValue.vec()); 55 } 56 } 57 } 58 SkPMColor4f fStartPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN}; 59 SkPMColor4f fEndPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN}; 60 UniformHandle fStartVar; 61 UniformHandle fEndVar; 62 }; 63 GrGLSLFragmentProcessor* GrSingleIntervalGradientColorizer::onCreateGLSLInstance() const { 64 return new GrGLSLSingleIntervalGradientColorizer(); 65 } 66 void GrSingleIntervalGradientColorizer::onGetGLSLProcessorKey(const GrShaderCaps& caps, 67 GrProcessorKeyBuilder* b) const {} 68 bool GrSingleIntervalGradientColorizer::onIsEqual(const GrFragmentProcessor& other) const { 69 const GrSingleIntervalGradientColorizer& that = other.cast<GrSingleIntervalGradientColorizer>(); 70 (void)that; 71 if (fStart != that.fStart) return false; 72 if (fEnd != that.fEnd) return false; 73 return true; 74 } 75 GrSingleIntervalGradientColorizer::GrSingleIntervalGradientColorizer( 76 const GrSingleIntervalGradientColorizer& src) 77 : INHERITED(kGrSingleIntervalGradientColorizer_ClassID, src.optimizationFlags()) 78 , fStart(src.fStart) 79 , fEnd(src.fEnd) {} 80 std::unique_ptr<GrFragmentProcessor> GrSingleIntervalGradientColorizer::clone() const { 81 return std::unique_ptr<GrFragmentProcessor>(new GrSingleIntervalGradientColorizer(*this)); 82 } 83
