content/renderer/media/renderer_gpu_video_accelerator_factories.h

   1 // Copyright 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 CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
   6 #define CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
   7
   8 #include <vector>
   9
  10 #include "base/basictypes.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/synchronization/waitable_event.h"
  14 #include "content/child/thread_safe_sender.h"
  15 #include "content/common/content_export.h"
  16 #include "media/renderers/gpu_video_accelerator_factories.h"
  17 #include "ui/gfx/geometry/size.h"
  18
  19 namespace base {
  20 class WaitableEvent;
  21 }
  22
  23 namespace gpu {
  24 class GpuMemoryBufferManager;
  25 }
  26
  27 namespace content {
  28 class ContextProviderCommandBuffer;
  29 class GLHelper;
  30 class GpuChannelHost;
  31 class WebGraphicsContext3DCommandBufferImpl;
  32
  33 // Glue code to expose functionality needed by media::GpuVideoAccelerator to
  34 // RenderViewImpl.  This class is entirely an implementation detail of
  35 // RenderViewImpl and only has its own header to allow extraction of its
  36 // implementation from render_view_impl.cc which is already far too large.
  37 //
  38 // The RendererGpuVideoAcceleratorFactories can be constructed on any thread,
  39 // but subsequent calls to all public methods of the class must be called from
  40 // the |task_runner_|, as provided during construction.
  41 class CONTENT_EXPORT RendererGpuVideoAcceleratorFactories
  42     : public media::GpuVideoAcceleratorFactories {
  43  public:
  44   // Takes a ref on |gpu_channel_host| and tests |context| for loss before each
  45   // use.  Safe to call from any thread.
  46   static scoped_refptr<RendererGpuVideoAcceleratorFactories> Create(
  47       GpuChannelHost* gpu_channel_host,
  48       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
  49       const scoped_refptr<ContextProviderCommandBuffer>& context_provider,
  50       bool enable_gpu_memory_buffer_video_frames,
  51       unsigned image_texture_target,
  52       bool enable_video_accelerator);
  53
  54   bool IsGpuVideoAcceleratorEnabled() override;
  55   // media::GpuVideoAcceleratorFactories implementation.
  56   scoped_ptr<media::VideoDecodeAccelerator> CreateVideoDecodeAccelerator()
  57       override;
  58   scoped_ptr<media::VideoEncodeAccelerator> CreateVideoEncodeAccelerator()
  59       override;
  60   // Creates textures and produces them into mailboxes. Returns true on success
  61   // or false on failure.
  62   bool CreateTextures(int32 count,
  63                       const gfx::Size& size,
  64                       std::vector<uint32>* texture_ids,
  65                       std::vector<gpu::Mailbox>* texture_mailboxes,
  66                       uint32 texture_target) override;
  67   void DeleteTexture(uint32 texture_id) override;
  68   void WaitSyncPoint(uint32 sync_point) override;
  69
  70   scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
  71       const gfx::Size& size,
  72       gfx::BufferFormat format,
  73       gfx::BufferUsage usage) override;
  74
  75   bool ShouldUseGpuMemoryBuffersForVideoFrames() const override;
  76   unsigned ImageTextureTarget() override;
  77   media::VideoPixelFormat VideoFrameOutputFormat() override;
  78   gpu::gles2::GLES2Interface* GetGLES2Interface() override;
  79   scoped_ptr<base::SharedMemory> CreateSharedMemory(size_t size) override;
  80   scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() override;
  81
  82   std::vector<media::VideoDecodeAccelerator::SupportedProfile>
  83       GetVideoDecodeAcceleratorSupportedProfiles() override;
  84   std::vector<media::VideoEncodeAccelerator::SupportedProfile>
  85       GetVideoEncodeAcceleratorSupportedProfiles() override;
  86
  87  private:
  88   friend class base::RefCountedThreadSafe<RendererGpuVideoAcceleratorFactories>;
  89   RendererGpuVideoAcceleratorFactories(
  90       GpuChannelHost* gpu_channel_host,
  91       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
  92       const scoped_refptr<ContextProviderCommandBuffer>& context_provider,
  93       bool enable_gpu_memory_buffer_video_frames,
  94       unsigned image_texture_target,
  95       bool enable_video_accelerator);
  96
  97   ~RendererGpuVideoAcceleratorFactories() override;
  98
  99   // Helper to bind |context_provider| to the |task_runner_| thread after
 100   // construction.
 101   void BindContext();
 102
 103   // Helper to get a pointer to the WebGraphicsContext3DCommandBufferImpl,
 104   // if it has not been lost yet.
 105   WebGraphicsContext3DCommandBufferImpl* GetContext3d();
 106   GLHelper* GetGLHelper();
 107
 108   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 109   scoped_refptr<GpuChannelHost> gpu_channel_host_;
 110   scoped_refptr<ContextProviderCommandBuffer> context_provider_;
 111
 112   // Whether gpu memory buffers should be used to hold video frames data.
 113   bool enable_gpu_memory_buffer_video_frames_;
 114   const unsigned image_texture_target_;
 115   // Whether video acceleration encoding/decoding should be enabled.
 116   const bool video_accelerator_enabled_;
 117
 118   scoped_ptr<GLHelper> gl_helper_;
 119   gpu::GpuMemoryBufferManager* const gpu_memory_buffer_manager_;
 120
 121   // For sending requests to allocate shared memory in the Browser process.
 122   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
 123
 124   DISALLOW_COPY_AND_ASSIGN(RendererGpuVideoAcceleratorFactories);
 125 };
 126
 127 }  // namespace content
 128
 129 #endif  // CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_