1 files changed, 47 insertions, 0 deletions
diff --git a/WebCore/platform/graphics/android/BitmapAllocatorAndroid.h b/WebCore/platform/graphics/android/BitmapAllocatorAndroid.h
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+++ b/WebCore/platform/graphics/android/BitmapAllocatorAndroid.h
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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