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/* libs/graphics/sgl/SkBitmapShader.h
**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#ifndef SkBitmapProcShader_DEFINED
#define SkBitmapProcShader_DEFINED
#include "SkShader.h"
#include "SkBitmapProcState.h"
class SkBitmapProcShader : public SkShader {
public:
SkBitmapProcShader(const SkBitmap& src, TileMode tx, TileMode ty);
// overrides from SkShader
virtual bool setContext(const SkBitmap&, const SkPaint&, const SkMatrix&);
virtual uint32_t getFlags() { return fFlags; }
virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count);
virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count);
virtual void beginSession();
virtual void endSession();
virtual BitmapType asABitmap(SkBitmap*, SkMatrix*, TileMode*,
SkScalar* twoPointRadialParams);
static bool CanDo(const SkBitmap&, TileMode tx, TileMode ty);
static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) {
return SkNEW_ARGS(SkBitmapProcShader, (buffer));
}
// override from flattenable
virtual bool toDumpString(SkString* str) const;
protected:
SkBitmapProcShader(SkFlattenableReadBuffer& );
virtual void flatten(SkFlattenableWriteBuffer& );
virtual Factory getFactory() { return CreateProc; }
SkBitmap fRawBitmap; // experimental for RLE encoding
SkBitmapProcState fState;
uint32_t fFlags;
private:
typedef SkShader INHERITED;
};
#endif
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