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1 // Copyright (c) 2013 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_CLIENT_GPU_MEMORY_BUFFER_TRACKER_H_
6 #define GPU_COMMAND_BUFFER_CLIENT_GPU_MEMORY_BUFFER_TRACKER_H_
7 
8 #include "base/basictypes.h"
9 #include "base/containers/hash_tables.h"
10 #include "gles2_impl_export.h"
11 
12 namespace gfx {
13 class GpuMemoryBuffer;
14 }
15 
16 namespace gpu {
17 class GpuControl;
18 
19 namespace gles2 {
20 
21 // Tracks GPU memory buffer objects on the client side.
22 class GLES2_IMPL_EXPORT GpuMemoryBufferTracker {
23  public:
24   explicit GpuMemoryBufferTracker(GpuControl* gpu_control);
25   virtual ~GpuMemoryBufferTracker();
26 
27   int32 CreateBuffer(size_t width,
28                      size_t height,
29                      int32 internalformat,
30                      int32 usage);
31   gfx::GpuMemoryBuffer* GetBuffer(int32 image_id);
32   void RemoveBuffer(int32 image_id);
33 
34  private:
35   typedef base::hash_map<int32, gfx::GpuMemoryBuffer*> BufferMap;
36   BufferMap buffers_;
37   GpuControl* gpu_control_;
38 
39   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferTracker);
40 };
41 
42 }  // namespace gles2
43 }  // namespace gpu
44 
45 #endif  // GPU_COMMAND_BUFFER_CLIENT_GPU_MEMORY_BUFFER_TRACKER_H_
46