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 
13 #include "include/gpu/GrTexture.h"
14 #include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
15 #include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
16 #include "src/gpu/glsl/GrGLSLProgramBuilder.h"
17 #include "src/sksl/SkSLCPP.h"
18 #include "src/sksl/SkSLUtil.h"
19 class GrGLSLLinearGradientLayout : public GrGLSLFragmentProcessor {
20 public:
GrGLSLLinearGradientLayout()21     GrGLSLLinearGradientLayout() {}
emitCode(EmitArgs & args)22     void emitCode(EmitArgs& args) override {
23         GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
24         const GrLinearGradientLayout& _outer = args.fFp.cast<GrLinearGradientLayout>();
25         (void)_outer;
26         auto gradientMatrix = _outer.gradientMatrix;
27         (void)gradientMatrix;
28         SkString sk_TransformedCoords2D_0 =
29                 fragBuilder->ensureCoords2D(args.fTransformedCoords[0].fVaryingPoint);
30         fragBuilder->codeAppendf(
31                 "half t = half(%s.x) + 9.9999997473787516e-06;\n%s = half4(t, 1.0, 0.0, 0.0);\n",
32                 _outer.computeLocalCoordsInVertexShader() ? sk_TransformedCoords2D_0.c_str()
33                                                           : "_coords",
34                 args.fOutputColor);
35     }
36 
37 private:
onSetData(const GrGLSLProgramDataManager & pdman,const GrFragmentProcessor & _proc)38     void onSetData(const GrGLSLProgramDataManager& pdman,
39                    const GrFragmentProcessor& _proc) override {}
40 };
onCreateGLSLInstance() const41 GrGLSLFragmentProcessor* GrLinearGradientLayout::onCreateGLSLInstance() const {
42     return new GrGLSLLinearGradientLayout();
43 }
onGetGLSLProcessorKey(const GrShaderCaps & caps,GrProcessorKeyBuilder * b) const44 void GrLinearGradientLayout::onGetGLSLProcessorKey(const GrShaderCaps& caps,
45                                                    GrProcessorKeyBuilder* b) const {}
onIsEqual(const GrFragmentProcessor & other) const46 bool GrLinearGradientLayout::onIsEqual(const GrFragmentProcessor& other) const {
47     const GrLinearGradientLayout& that = other.cast<GrLinearGradientLayout>();
48     (void)that;
49     if (gradientMatrix != that.gradientMatrix) return false;
50     return true;
51 }
GrLinearGradientLayout(const GrLinearGradientLayout & src)52 GrLinearGradientLayout::GrLinearGradientLayout(const GrLinearGradientLayout& src)
53         : INHERITED(kGrLinearGradientLayout_ClassID, src.optimizationFlags())
54         , fCoordTransform0(src.fCoordTransform0)
55         , gradientMatrix(src.gradientMatrix) {
56     this->addCoordTransform(&fCoordTransform0);
57 }
clone() const58 std::unique_ptr<GrFragmentProcessor> GrLinearGradientLayout::clone() const {
59     return std::unique_ptr<GrFragmentProcessor>(new GrLinearGradientLayout(*this));
60 }
61 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrLinearGradientLayout);
62 #if GR_TEST_UTILS
TestCreate(GrProcessorTestData * d)63 std::unique_ptr<GrFragmentProcessor> GrLinearGradientLayout::TestCreate(GrProcessorTestData* d) {
64     SkScalar scale = GrGradientShader::RandomParams::kGradientScale;
65     SkPoint points[] = {
66             {d->fRandom->nextRangeScalar(0.0f, scale), d->fRandom->nextRangeScalar(0.0f, scale)},
67             {d->fRandom->nextRangeScalar(0.0f, scale), d->fRandom->nextRangeScalar(0.0f, scale)}};
68 
69     GrGradientShader::RandomParams params(d->fRandom);
70     auto shader = params.fUseColors4f
71                           ? SkGradientShader::MakeLinear(points, params.fColors4f,
72                                                          params.fColorSpace, params.fStops,
73                                                          params.fColorCount, params.fTileMode)
74                           : SkGradientShader::MakeLinear(points, params.fColors, params.fStops,
75                                                          params.fColorCount, params.fTileMode);
76     GrTest::TestAsFPArgs asFPArgs(d);
77     std::unique_ptr<GrFragmentProcessor> fp = as_SB(shader)->asFragmentProcessor(asFPArgs.args());
78     GrAlwaysAssert(fp);
79     return fp;
80 }
81 #endif
82 
Make(const SkLinearGradient & grad,const GrFPArgs & args)83 std::unique_ptr<GrFragmentProcessor> GrLinearGradientLayout::Make(const SkLinearGradient& grad,
84                                                                   const GrFPArgs& args) {
85     SkMatrix matrix;
86     if (!grad.totalLocalMatrix(args.fPreLocalMatrix, args.fPostLocalMatrix)->invert(&matrix)) {
87         return nullptr;
88     }
89     matrix.postConcat(grad.getGradientMatrix());
90     return std::unique_ptr<GrFragmentProcessor>(new GrLinearGradientLayout(matrix));
91 }
92