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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_
#define SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_
#include "base/memory/discardable_memory.h"
#include "base/memory/scoped_ptr.h"
#include "third_party/skia/src/core/SkDiscardableMemory.h"
// This class implements the SkDiscardableMemory interface using
// base::DiscardableMemory.
class SK_API SkDiscardableMemoryChrome : public SkDiscardableMemory {
public:
SkDiscardableMemoryChrome();
virtual ~SkDiscardableMemoryChrome();
// Initialize the SkDiscardableMemoryChrome object and lock the memory.
// Returns true on success. No memory is allocated if this call returns
// false. This call should only be called once.
bool InitializeAndLock(size_t bytes);
// Implementation of SkDiscardableMemory interface.
virtual bool lock() OVERRIDE;
virtual void* data() OVERRIDE;
virtual void unlock() OVERRIDE;
private:
scoped_ptr<base::DiscardableMemory> discardable_;
};
#endif // SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_
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