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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkLinearGradient_DEFINED
#define SkLinearGradient_DEFINED
#include "SkGradientShaderPriv.h"
class SkLinearGradient : public SkGradientShaderBase {
public:
SkLinearGradient(const SkPoint pts[2],
const SkColor colors[], const SkScalar pos[], int colorCount,
SkShader::TileMode mode, SkUnitMapper* mapper);
virtual bool setContext(const SkBitmap&, const SkPaint&, const SkMatrix&) SK_OVERRIDE;
virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE;
virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE;
virtual BitmapType asABitmap(SkBitmap*, SkMatrix*, TileMode*) const SK_OVERRIDE;
virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
virtual GrCustomStage* asNewCustomStage(GrContext* context,
GrSamplerState* sampler) const SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLinearGradient)
protected:
SkLinearGradient(SkFlattenableReadBuffer& buffer);
virtual void flatten(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE;
private:
typedef SkGradientShaderBase INHERITED;
const SkPoint fStart;
const SkPoint fEnd;
};
///////////////////////////////////////////////////////////////////////////////
class GrGLLinearGradient;
class GrLinearGradient : public GrGradientEffect {
public:
GrLinearGradient(GrTexture* texture);
GrLinearGradient(GrContext* ctx, const SkShader& shader,
GrSamplerState* sampler);
virtual ~GrLinearGradient();
static const char* Name() { return "Linear Gradient"; }
virtual const GrProgramStageFactory& getFactory() const SK_OVERRIDE;
typedef GrGLLinearGradient GLProgramStage;
private:
typedef GrGradientEffect INHERITED;
};
#endif
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