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/*
* Copyright 2007 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkColorMatrixFilter_DEFINED
#define SkColorMatrixFilter_DEFINED
#include "SkColorFilter.h"
#include "SkColorMatrix.h"
class SK_API SkColorMatrixFilter : public SkColorFilter {
public:
SkColorMatrixFilter();
explicit SkColorMatrixFilter(const SkColorMatrix&);
SkColorMatrixFilter(const SkScalar array[20]);
void setMatrix(const SkColorMatrix&);
void setArray(const SkScalar array[20]);
// overrides from SkColorFilter
virtual void filterSpan(const SkPMColor src[], int count, SkPMColor[]) SK_OVERRIDE;
virtual void filterSpan16(const uint16_t src[], int count, uint16_t[]) SK_OVERRIDE;
virtual uint32_t getFlags() SK_OVERRIDE;
virtual bool asColorMatrix(SkScalar matrix[20]) SK_OVERRIDE;
// overrides for SkFlattenable
virtual void flatten(SkFlattenableWriteBuffer& buffer) SK_OVERRIDE;
struct State {
int32_t fArray[20];
int fShift;
int32_t fResult[4];
};
static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer);
SK_DECLARE_FLATTENABLE_REGISTRAR()
protected:
// overrides for SkFlattenable
virtual Factory getFactory();
SkColorMatrixFilter(SkFlattenableReadBuffer& buffer);
private:
typedef void (*Proc)(State*, unsigned r, unsigned g, unsigned b,
unsigned a);
Proc fProc;
State fState;
uint32_t fFlags;
void setup(const SkScalar array[20]);
typedef SkColorFilter INHERITED;
};
#endif
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