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 GrRadialGradientLayout.fp; do not modify.
10 **************************************************************************************************/
11#include "GrRadialGradientLayout.h"
12
13#include "src/core/SkUtils.h"
14#include "src/gpu/GrTexture.h"
15#include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
16#include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
17#include "src/gpu/glsl/GrGLSLProgramBuilder.h"
18#include "src/sksl/SkSLCPP.h"
19#include "src/sksl/SkSLUtil.h"
20class GrGLSLRadialGradientLayout : public GrGLSLFragmentProcessor {
21public:
22 GrGLSLRadialGradientLayout() {}
23 void emitCode(EmitArgs& args) override {
24 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
25 const GrRadialGradientLayout& _outer = args.fFp.cast<GrRadialGradientLayout>();
26 (void)_outer;
27 fragBuilder->codeAppendf(
28 R"SkSL(half t = half(length(%s));
29%s = half4(t, 1.0, 0.0, 0.0);
30)SkSL",
31 args.fSampleCoord, args.fOutputColor);
32 }
33
34private:
35 void onSetData(const GrGLSLProgramDataManager& pdman,
36 const GrFragmentProcessor& _proc) override {}
37};
38GrGLSLFragmentProcessor* GrRadialGradientLayout::onCreateGLSLInstance() const {
39 return new GrGLSLRadialGradientLayout();
40}
41void GrRadialGradientLayout::onGetGLSLProcessorKey(const GrShaderCaps& caps,
42 GrProcessorKeyBuilder* b) const {}
43bool GrRadialGradientLayout::onIsEqual(const GrFragmentProcessor& other) const {
44 const GrRadialGradientLayout& that = other.cast<GrRadialGradientLayout>();
45 (void)that;
46 return true;
47}
48GrRadialGradientLayout::GrRadialGradientLayout(const GrRadialGradientLayout& src)
49 : INHERITED(kGrRadialGradientLayout_ClassID, src.optimizationFlags()) {
50 this->cloneAndRegisterAllChildProcessors(src);
51 this->setUsesSampleCoordsDirectly();
52}
53std::unique_ptr<GrFragmentProcessor> GrRadialGradientLayout::clone() const {
54 return std::make_unique<GrRadialGradientLayout>(*this);
55}
56#if GR_TEST_UTILS
57SkString GrRadialGradientLayout::onDumpInfo() const { return SkString(); }
58#endif
59GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrRadialGradientLayout);
60#if GR_TEST_UTILS
61std::unique_ptr<GrFragmentProcessor> GrRadialGradientLayout::TestCreate(GrProcessorTestData* d) {
62 SkScalar scale = GrGradientShader::RandomParams::kGradientScale;
63 std::unique_ptr<GrFragmentProcessor> fp;
64 GrTest::TestAsFPArgs asFPArgs(d);
65 do {
66 GrGradientShader::RandomParams params(d->fRandom);
67 SkPoint center = {d->fRandom->nextRangeScalar(0.0f, scale),
68 d->fRandom->nextRangeScalar(0.0f, scale)};
69 SkScalar radius = d->fRandom->nextRangeScalar(0.0f, scale);
70 sk_sp<SkShader> shader =
71 params.fUseColors4f
72 ? SkGradientShader::MakeRadial(center, radius, params.fColors4f,
73 params.fColorSpace, params.fStops,
74 params.fColorCount, params.fTileMode)
75 : SkGradientShader::MakeRadial(center, radius, params.fColors,
76 params.fStops, params.fColorCount,
77 params.fTileMode);
78 // Degenerate params can create an Empty (non-null) shader, where fp will be nullptr
79 fp = shader ? as_SB(shader)->asFragmentProcessor(asFPArgs.args()) : nullptr;
80 } while (!fp);
81 return fp;
82}
83#endif
84
85std::unique_ptr<GrFragmentProcessor> GrRadialGradientLayout::Make(const SkRadialGradient& grad,
86 const GrFPArgs& args) {
87 SkMatrix matrix;
88 if (!grad.totalLocalMatrix(args.fPreLocalMatrix)->invert(&matrix)) {
89 return nullptr;
90 }
91 matrix.postConcat(grad.getGradientMatrix());
92 return GrMatrixEffect::Make(matrix,
93 std::unique_ptr<GrFragmentProcessor>(new GrRadialGradientLayout()));
94}
95