1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef GPU_COMMAND_BUFFER_SERVICE_TRANSFER_BUFFER_MANAGER_H_
6#define GPU_COMMAND_BUFFER_SERVICE_TRANSFER_BUFFER_MANAGER_H_
7
8#include <set>
9#include <vector>
10
11#include "base/basictypes.h"
12#include "base/compiler_specific.h"
13#include "base/containers/hash_tables.h"
14#include "base/memory/shared_memory.h"
15#include "gpu/command_buffer/common/command_buffer_shared.h"
16
17namespace gpu {
18
19class GPU_EXPORT TransferBufferManagerInterface {
20 public:
21  virtual ~TransferBufferManagerInterface();
22
23  virtual bool RegisterTransferBuffer(int32 id,
24                                      scoped_ptr<BufferBacking> buffer) = 0;
25  virtual void DestroyTransferBuffer(int32 id) = 0;
26  virtual scoped_refptr<Buffer> GetTransferBuffer(int32 id) = 0;
27};
28
29class GPU_EXPORT TransferBufferManager
30    : public TransferBufferManagerInterface {
31 public:
32  TransferBufferManager();
33
34  bool Initialize();
35  virtual bool RegisterTransferBuffer(int32 id,
36                                      scoped_ptr<BufferBacking> buffer_backing)
37      OVERRIDE;
38  virtual void DestroyTransferBuffer(int32 id) OVERRIDE;
39  virtual scoped_refptr<Buffer> GetTransferBuffer(int32 id) OVERRIDE;
40
41 private:
42  virtual ~TransferBufferManager();
43
44  typedef base::hash_map<int32, scoped_refptr<Buffer> > BufferMap;
45  BufferMap registered_buffers_;
46  size_t shared_memory_bytes_allocated_;
47
48  DISALLOW_COPY_AND_ASSIGN(TransferBufferManager);
49};
50
51}  // namespace gpu
52
53#endif  // GPU_COMMAND_BUFFER_SERVICE_TRANSFER_BUFFER_MANAGER_H_
54