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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 SkSweepGradient_DEFINED
#define SkSweepGradient_DEFINED
#include "SkGradientShaderPriv.h"
class SkSweepGradient : public SkGradientShaderBase {
public:
SkSweepGradient(SkScalar cx, SkScalar cy, const Descriptor&,
const SkMatrix* localMatrix);
virtual size_t contextSize() const SK_OVERRIDE;
class SweepGradientContext : public SkGradientShaderBase::GradientShaderBaseContext {
public:
SweepGradientContext(const SkSweepGradient& shader, const ContextRec&);
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;
private:
typedef SkGradientShaderBase::GradientShaderBaseContext INHERITED;
};
virtual BitmapType asABitmap(SkBitmap* bitmap,
SkMatrix* matrix,
TileMode* xy) const SK_OVERRIDE;
virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
virtual GrEffectRef* asNewEffect(GrContext* context, const SkPaint&) const SK_OVERRIDE;
SK_TO_STRING_OVERRIDE()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSweepGradient)
protected:
SkSweepGradient(SkReadBuffer& buffer);
virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE;
virtual Context* onCreateContext(const ContextRec&, void* storage) const SK_OVERRIDE;
private:
const SkPoint fCenter;
typedef SkGradientShaderBase INHERITED;
};
#endif
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