1 /* 2 * Copyright 2012 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 #ifndef SkLinearGradient_DEFINED 9 #define SkLinearGradient_DEFINED 10 11 #include "src/shaders/gradients/SkGradientShaderBase.h" 12 13 class SkLinearGradient final : public SkGradientShaderBase { 14 public: 15 SkLinearGradient(const SkPoint pts[2], const Descriptor&); 16 17 GradientType asGradient(GradientInfo* info, SkMatrix* localMatrix) const override; 18 #if defined(SK_GANESH) 19 std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(const GrFPArgs&, 20 const MatrixRec&) const override; 21 #endif 22 #if defined(SK_GRAPHITE) 23 void addToKey(const skgpu::graphite::KeyContext&, 24 skgpu::graphite::PaintParamsKeyBuilder*, 25 skgpu::graphite::PipelineDataGatherer*) const override; 26 #endif 27 28 protected: 29 SkLinearGradient(SkReadBuffer& buffer); 30 void flatten(SkWriteBuffer& buffer) const override; 31 32 void appendGradientStages(SkArenaAlloc* alloc, SkRasterPipeline* tPipeline, 33 SkRasterPipeline* postPipeline) const final; 34 35 skvm::F32 transformT(skvm::Builder*, skvm::Uniforms*, 36 skvm::Coord coord, skvm::I32* mask) const final; 37 38 private: 39 friend void ::SkRegisterLinearGradientShaderFlattenable(); 40 SK_FLATTENABLE_HOOKS(SkLinearGradient) 41 42 class LinearGradient4fContext; 43 44 friend class SkGradientShader; 45 using INHERITED = SkGradientShaderBase; 46 const SkPoint fStart; 47 const SkPoint fEnd; 48 }; 49 50 #endif 51