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      1 
      2 /*
      3  * Copyright 2012 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 #ifndef SkLinearGradient_DEFINED
     10 #define SkLinearGradient_DEFINED
     11 
     12 #include "SkGradientShaderPriv.h"
     13 
     14 class SkLinearGradient : public SkGradientShaderBase {
     15 public:
     16     SkLinearGradient(const SkPoint pts[2], const Descriptor&);
     17 
     18     virtual bool setContext(const SkBitmap&, const SkPaint&, const SkMatrix&) SK_OVERRIDE;
     19     virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE;
     20     virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE;
     21     virtual BitmapType asABitmap(SkBitmap*, SkMatrix*, TileMode*) const SK_OVERRIDE;
     22     virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
     23     virtual GrEffectRef* asNewEffect(GrContext* context, const SkPaint&) const SK_OVERRIDE;
     24 
     25     SK_DEVELOPER_TO_STRING()
     26     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLinearGradient)
     27 
     28 protected:
     29     SkLinearGradient(SkFlattenableReadBuffer& buffer);
     30     virtual void flatten(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE;
     31 
     32 private:
     33     typedef SkGradientShaderBase INHERITED;
     34     const SkPoint fStart;
     35     const SkPoint fEnd;
     36 };
     37 
     38 #endif
     39