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 "SkGradientShaderPriv.h" 12 13 class SkLinearGradient : public SkGradientShaderBase { 14 public: 15 SkLinearGradient(const SkPoint pts[2], const Descriptor&, const SkMatrix* localMatrix); 16 17 virtual size_t contextSize() const SK_OVERRIDE; 18 19 class LinearGradientContext : public SkGradientShaderBase::GradientShaderBaseContext { 20 public: 21 LinearGradientContext(const SkLinearGradient&, const ContextRec&); 22 ~LinearGradientContext() {} 23 24 virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE; 25 virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE; 26 27 private: 28 typedef SkGradientShaderBase::GradientShaderBaseContext INHERITED; 29 }; 30 31 virtual BitmapType asABitmap(SkBitmap*, SkMatrix*, TileMode*) const SK_OVERRIDE; 32 virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE; 33 virtual bool asNewEffect(GrContext* context, const SkPaint& paint, const SkMatrix* localMatrix, 34 GrColor* grColor, GrEffectRef** grEffect) const SK_OVERRIDE; 35 36 SK_TO_STRING_OVERRIDE() 37 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLinearGradient) 38 39 protected: 40 SkLinearGradient(SkReadBuffer& buffer); 41 virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE; 42 virtual Context* onCreateContext(const ContextRec&, void* storage) const SK_OVERRIDE; 43 44 private: 45 typedef SkGradientShaderBase INHERITED; 46 const SkPoint fStart; 47 const SkPoint fEnd; 48 }; 49 50 #endif 51
