cc/resources/gpu_memory_buffer_manager.h

// Copyright 2014 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 CC_RESOURCES_GPU_MEMORY_BUFFER_MANAGER_H_
#define CC_RESOURCES_GPU_MEMORY_BUFFER_MANAGER_H_

#include "base/memory/scoped_ptr.h"
#include "cc/base/cc_export.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/gpu_memory_buffer.h"

namespace cc {

class CC_EXPORT GpuMemoryBufferManager {
 public:
  // Allocates a GpuMemoryBuffer that can be shared with another process.
  virtual scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
      const gfx::Size& size,
      gfx::GpuMemoryBuffer::Format format,
      gfx::GpuMemoryBuffer::Usage usage) = 0;

  // Returns a GpuMemoryBuffer instance given a ClientBuffer. Returns NULL on
  // failure.
  virtual gfx::GpuMemoryBuffer* GpuMemoryBufferFromClientBuffer(
      ClientBuffer buffer) = 0;

 protected:
  virtual ~GpuMemoryBufferManager() {}
};

}  // namespace cc

#endif  // CC_RESOURCES_GPU_MEMORY_BUFFER_MANAGER_H_