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 SkSweepGradient_DEFINED 9 #define SkSweepGradient_DEFINED 10 11 #include "src/shaders/gradients/SkGradientShaderPriv.h" 12 13 class SkSweepGradient final : public SkGradientShaderBase { 14 public: 15 SkSweepGradient(const SkPoint& center, SkScalar t0, SkScalar t1, const Descriptor&); 16 17 GradientType asAGradient(GradientInfo* info) const override; 18 19 #if SK_SUPPORT_GPU 20 std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(const GrFPArgs&) const override; 21 #endif 22 getTBias()23 SkScalar getTBias() const { return fTBias; } 24 getTScale()25 SkScalar getTScale() const { return fTScale; } 26 27 protected: 28 void flatten(SkWriteBuffer& buffer) const override; 29 30 void appendGradientStages(SkArenaAlloc* alloc, SkRasterPipeline* tPipeline, 31 SkRasterPipeline* postPipeline) const override; 32 33 skvm::F32 transformT(skvm::Builder*, skvm::Uniforms*, 34 skvm::Coord coord, skvm::I32* mask) const final; 35 private: 36 SK_FLATTENABLE_HOOKS(SkSweepGradient) 37 38 const SkPoint fCenter; 39 const SkScalar fTBias, 40 fTScale; 41 42 friend class SkGradientShader; 43 using INHERITED = SkGradientShaderBase; 44 }; 45 46 #endif 47