content/common/gpu/gpu_memory_buffer_factory_io_surface.h

   1 // Copyright 2014 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 CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_IO_SURFACE_H_
   6 #define CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_IO_SURFACE_H_
   7
   8 #include <IOSurface/IOSurfaceAPI.h>
   9
  10 #include "base/containers/hash_tables.h"
  11 #include "base/mac/scoped_cftyperef.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "ui/gfx/geometry/size.h"
  14 #include "ui/gfx/gpu_memory_buffer.h"
  15
  16 namespace gfx {
  17 class GLImage;
  18 }
  19
  20 namespace content {
  21
  22 class GpuMemoryBufferFactoryIOSurface {
  23  public:
  24   GpuMemoryBufferFactoryIOSurface();
  25   ~GpuMemoryBufferFactoryIOSurface();
  26
  27   // Creates a IOSurface backed GPU memory buffer with |size| and
  28   // |internalformat|. A valid handle is returned on success.
  29   gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
  30       gfx::GpuMemoryBufferId id,
  31       const gfx::Size& size,
  32       gfx::GpuMemoryBuffer::Format format,
  33       int client_id);
  34
  35   // Destroy a previously created GPU memory buffer.
  36   void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id, int client_id);
  37
  38   // Creates a GLImage instance for a GPU memory buffer.
  39   scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
  40       gfx::GpuMemoryBufferId id,
  41       const gfx::Size& size,
  42       gfx::GpuMemoryBuffer::Format format,
  43       int client_id);
  44
  45  private:
  46   typedef std::pair<int, int> IOSurfaceMapKey;
  47   typedef base::hash_map<IOSurfaceMapKey, base::ScopedCFTypeRef<IOSurfaceRef>>
  48       IOSurfaceMap;
  49   IOSurfaceMap io_surfaces_;
  50 };
  51
  52 }  // namespace content
  53
  54 #endif  // CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_IO_SURFACE_H_