| /* |
| * Copyright 2020 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrMatrixEffect_DEFINED |
| #define GrMatrixEffect_DEFINED |
| |
| #include "include/core/SkM44.h" |
| #include "include/core/SkTypes.h" |
| |
| #include "src/gpu/GrFragmentProcessor.h" |
| |
| class GrMatrixEffect : public GrFragmentProcessor { |
| public: |
| static std::unique_ptr<GrFragmentProcessor> Make(const SkMatrix& matrix, |
| std::unique_ptr<GrFragmentProcessor> child); |
| |
| std::unique_ptr<GrFragmentProcessor> clone() const override; |
| const char* name() const override { return "MatrixEffect"; } |
| const SkMatrix& matrix() const { return fMatrix; } |
| |
| private: |
| GrMatrixEffect(const GrMatrixEffect& src); |
| |
| GrMatrixEffect(SkMatrix matrix, std::unique_ptr<GrFragmentProcessor> child) |
| : INHERITED(kGrMatrixEffect_ClassID, ProcessorOptimizationFlags(child.get())) |
| , fMatrix(matrix) { |
| SkASSERT(child); |
| this->registerChild(std::move(child), |
| SkSL::SampleUsage::UniformMatrix(matrix.hasPerspective())); |
| } |
| |
| std::unique_ptr<GrGLSLFragmentProcessor> onMakeProgramImpl() const override; |
| void onAddToKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override; |
| bool onIsEqual(const GrFragmentProcessor&) const override; |
| SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& inputColor) const override { |
| return ConstantOutputForConstantInput(this->childProcessor(0), inputColor); |
| } |
| |
| SkMatrix fMatrix; |
| |
| GR_DECLARE_FRAGMENT_PROCESSOR_TEST |
| using INHERITED = GrFragmentProcessor; |
| }; |
| #endif |