gpu/command_buffer/client/gpu_memory_buffer_tracker.h

   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_