src/gpu/command_buffer/service/image_manager.h

   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_IMAGE_MANAGER_H_
   6 #define GPU_COMMAND_BUFFER_SERVICE_IMAGE_MANAGER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/containers/hash_tables.h"
  10 #include "base/memory/ref_counted.h"
  11 #include "gpu/command_buffer/service/gpu_memory_buffer_manager.h"
  12 #include "gpu/gpu_export.h"
  13
  14 namespace gfx {
  15 class GLImage;
  16 }
  17
  18 namespace gpu {
  19 namespace gles2 {
  20
  21 // Interface used by the cmd decoder to lookup images.
  22 class GPU_EXPORT ImageManager
  23     : public GpuMemoryBufferManagerInterface,
  24       public base::RefCounted<ImageManager> {
  25  public:
  26   ImageManager();
  27
  28   // Overridden from GpuMemoryBufferManagerInterface:
  29   virtual bool RegisterGpuMemoryBuffer(int32 id,
  30                                        gfx::GpuMemoryBufferHandle buffer,
  31                                        size_t width,
  32                                        size_t height,
  33                                        unsigned internalformat) OVERRIDE;
  34   virtual void DestroyGpuMemoryBuffer(int32 id) OVERRIDE;
  35
  36   void AddImage(gfx::GLImage* gl_image, int32 service_id);
  37   void RemoveImage(int32 service_id);
  38   gfx::GLImage* LookupImage(int32 service_id);
  39
  40  private:
  41   friend class base::RefCounted<ImageManager>;
  42
  43   virtual ~ImageManager();
  44
  45   typedef base::hash_map<uint32, scoped_refptr<gfx::GLImage> > GLImageMap;
  46   GLImageMap gl_images_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(ImageManager);
  49 };
  50
  51 }  // namespage gles2
  52 }  // namespace gpu
  53
  54 #endif  // GPU_COMMAND_BUFFER_SERVICE_IMAGE_MANAGER_H_