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 GrLinearGradientLayout.fp; do not modify. 10 **************************************************************************************************/ 11 #include "GrLinearGradientLayout.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 GrGLSLLinearGradientLayout : public GrGLSLFragmentProcessor { 19 public: 20 GrGLSLLinearGradientLayout() {} 21 void emitCode(EmitArgs& args) override { 22 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; 23 const GrLinearGradientLayout& _outer = args.fFp.cast<GrLinearGradientLayout>(); 24 (void)_outer; 25 auto gradientMatrix = _outer.gradientMatrix(); 26 (void)gradientMatrix; 27 SkString sk_TransformedCoords2D_0 = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]); 28 fragBuilder->codeAppendf("half t = half(%s.x);\n%s = half4(t, 1.0, 0.0, 0.0);\n", 29 sk_TransformedCoords2D_0.c_str(), args.fOutputColor); 30 } 31 32 private: 33 void onSetData(const GrGLSLProgramDataManager& pdman, 34 const GrFragmentProcessor& _proc) override {} 35 }; 36 GrGLSLFragmentProcessor* GrLinearGradientLayout::onCreateGLSLInstance() const { 37 return new GrGLSLLinearGradientLayout(); 38 } 39 void GrLinearGradientLayout::onGetGLSLProcessorKey(const GrShaderCaps& caps, 40 GrProcessorKeyBuilder* b) const {} 41 bool GrLinearGradientLayout::onIsEqual(const GrFragmentProcessor& other) const { 42 const GrLinearGradientLayout& that = other.cast<GrLinearGradientLayout>(); 43 (void)that; 44 if (fGradientMatrix != that.fGradientMatrix) return false; 45 return true; 46 } 47 GrLinearGradientLayout::GrLinearGradientLayout(const GrLinearGradientLayout& src) 48 : INHERITED(kGrLinearGradientLayout_ClassID, src.optimizationFlags()) 49 , fGradientMatrix(src.fGradientMatrix) 50 , fCoordTransform0(src.fCoordTransform0) { 51 this->addCoordTransform(&fCoordTransform0); 52 } 53 std::unique_ptr<GrFragmentProcessor> GrLinearGradientLayout::clone() const { 54 return std::unique_ptr<GrFragmentProcessor>(new GrLinearGradientLayout(*this)); 55 } 56 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrLinearGradientLayout); 57 #if GR_TEST_UTILS 58 std::unique_ptr<GrFragmentProcessor> GrLinearGradientLayout::TestCreate(GrProcessorTestData* d) { 59 SkScalar scale = GrGradientShader::RandomParams::kGradientScale; 60 SkPoint points[] = { 61 {d->fRandom->nextRangeScalar(0.0f, scale), d->fRandom->nextRangeScalar(0.0f, scale)}, 62 {d->fRandom->nextRangeScalar(0.0f, scale), d->fRandom->nextRangeScalar(0.0f, scale)}}; 63 64 GrGradientShader::RandomParams params(d->fRandom); 65 auto shader = params.fUseColors4f 66 ? SkGradientShader::MakeLinear(points, params.fColors4f, 67 params.fColorSpace, params.fStops, 68 params.fColorCount, params.fTileMode) 69 : SkGradientShader::MakeLinear(points, params.fColors, params.fStops, 70 params.fColorCount, params.fTileMode); 71 GrTest::TestAsFPArgs asFPArgs(d); 72 std::unique_ptr<GrFragmentProcessor> fp = as_SB(shader)->asFragmentProcessor(asFPArgs.args()); 73 GrAlwaysAssert(fp); 74 return fp; 75 } 76 #endif 77 78 std::unique_ptr<GrFragmentProcessor> GrLinearGradientLayout::Make(const SkLinearGradient& grad, 79 const GrFPArgs& args) { 80 SkMatrix matrix; 81 if (!grad.totalLocalMatrix(args.fPreLocalMatrix, args.fPostLocalMatrix)->invert(&matrix)) { 82 return nullptr; 83 } 84 matrix.postConcat(grad.getGradientMatrix()); 85 return std::unique_ptr<GrFragmentProcessor>(new GrLinearGradientLayout(matrix)); 86 } 87
