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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