Add a GpuMemoryBuffer pool that creates hardware backed VideoFrames.

content/renderer/media/renderer_gpu_video_accelerator_factories.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
 #define CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/synchronization/waitable_event.h"
 #include "content/child/thread_safe_sender.h"
 #include "content/common/content_export.h"
 #include "media/renderers/gpu_video_accelerator_factories.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace base {
 class WaitableEvent;
 }
 
+namespace gpu {
+class GpuMemoryBufferManager;
+}
+
 namespace content {
 class ContextProviderCommandBuffer;
 class GLHelper;
 class GpuChannelHost;
 class WebGraphicsContext3DCommandBufferImpl;
 
 // Glue code to expose functionality needed by media::GpuVideoAccelerator to
 // RenderViewImpl.  This class is entirely an implementation detail of
 // RenderViewImpl and only has its own header to allow extraction of its
 // implementation from render_view_impl.cc which is already far too large.
@@ skipping 18 matching lines @@
       override;
   // Creates textures and produces them into mailboxes. Returns true on success
   // or false on failure.
   bool CreateTextures(int32 count,
                       const gfx::Size& size,
                       std::vector<uint32>* texture_ids,
                       std::vector<gpu::Mailbox>* texture_mailboxes,
                       uint32 texture_target) override;
   void DeleteTexture(uint32 texture_id) override;
   void WaitSyncPoint(uint32 sync_point) override;
+
+  scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
+      const gfx::Size& size,
+      gfx::GpuMemoryBuffer::Format format,
+      gfx::GpuMemoryBuffer::Usage usage) override;
+
+  // Return or create a GLES2Interface. This method must be called from the
+  // thread associated with the 'task_runner' passed to the constructor.

[reveman, 2015/05/12 03:20:24]

nit: think this is implied from the class description above

[Daniele Castagna, 2015/05/12 21:21:29]

Removed the comment.

+  gpu::gles2::GLES2Interface* GetGLES2Interface() override;
   scoped_ptr<base::SharedMemory> CreateSharedMemory(size_t size) override;
   scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() override;
 
   std::vector<media::VideoDecodeAccelerator::SupportedProfile>
       GetVideoDecodeAcceleratorSupportedProfiles() override;
   std::vector<media::VideoEncodeAccelerator::SupportedProfile>
       GetVideoEncodeAcceleratorSupportedProfiles() override;
 
  private:
   friend class base::RefCountedThreadSafe<RendererGpuVideoAcceleratorFactories>;
   RendererGpuVideoAcceleratorFactories(
       GpuChannelHost* gpu_channel_host,
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       const scoped_refptr<ContextProviderCommandBuffer>& context_provider);
   ~RendererGpuVideoAcceleratorFactories() override;
 
   // Helper to bind |context_provider| to the |task_runner_| thread after
   // construction.
   void BindContext();
 
   // Helper to get a pointer to the WebGraphicsContext3DCommandBufferImpl,
   // if it has not been lost yet.
   WebGraphicsContext3DCommandBufferImpl* GetContext3d();
   GLHelper* GetGLHelper();
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   scoped_refptr<GpuChannelHost> gpu_channel_host_;
   scoped_refptr<ContextProviderCommandBuffer> context_provider_;
   scoped_ptr<GLHelper> gl_helper_;
+  gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;

[reveman, 2015/05/12 03:20:24]

nit: const pointer

[Daniele Castagna, 2015/05/12 21:21:29]

Do you mean gpu::GpuMemoryBufferManager* const? Done.

const gpu::GpuMemoryBufferManager* can't be done since we use
AllocateGpuMemoryBuffer that is not const.

 
   // For sending requests to allocate shared memory in the Browser process.
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererGpuVideoAcceleratorFactories);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_