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 "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 23 SkScalar getTBias() const { return fTBias; } 24 25 SkScalar getTScale() const { return fTScale; } 26 27 protected: 28 void flatten(SkWriteBuffer& buffer) const override; 29 sk_sp<SkShader> onMakeColorSpace(SkColorSpaceXformer* xformer) const override; 30 31 void appendGradientStages(SkArenaAlloc* alloc, SkRasterPipeline* tPipeline, 32 SkRasterPipeline* postPipeline) const override; 33 34 private: 35 SK_FLATTENABLE_HOOKS(SkSweepGradient) 36 37 const SkPoint fCenter; 38 const SkScalar fTBias, 39 fTScale; 40 41 friend class SkGradientShader; 42 typedef SkGradientShaderBase INHERITED; 43 }; 44 45 #endif 46
