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/*
* Copyright (C) 2009 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 WebCore_BitmapAllocatorAndroid_DEFINED
#define WebCore_BitmapAllocatorAndroid_DEFINED
#include "SkBitmap.h"
namespace WebCore {
class SharedBuffer;
class SharedBufferStream;
/** Returns a custom allocator that takes advantage of ashmem and global
pools to best manage the pixel memory for a decoded image. This should
be used for images that are logically immutable, and can be re-decoded
at will based on available memory.
*/
class BitmapAllocatorAndroid : public SkBitmap::Allocator {
public:
BitmapAllocatorAndroid(SharedBuffer* data, int sampleSize);
virtual ~BitmapAllocatorAndroid();
// overrides
virtual bool allocPixelRef(SkBitmap*, SkColorTable*);
private:
SharedBufferStream* fStream;
int fSampleSize;
};
}
#endif
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