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Diffstat (limited to 'WebCore/platform/graphics/android/BitmapAllocatorAndroid.h')
-rw-r--r-- | WebCore/platform/graphics/android/BitmapAllocatorAndroid.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/WebCore/platform/graphics/android/BitmapAllocatorAndroid.h b/WebCore/platform/graphics/android/BitmapAllocatorAndroid.h new file mode 100644 index 0000000..f2b2223 --- /dev/null +++ b/WebCore/platform/graphics/android/BitmapAllocatorAndroid.h @@ -0,0 +1,47 @@ +/* + * 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 |