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/filters/gpu_video_accelerator_factories.h" 17 #include "ui/gfx/size.h" 18 19 namespace base { 20 class WaitableEvent; 21 } 22 23 namespace content { 24 class ContextProviderCommandBuffer; 25 class GLHelper; 26 class GpuChannelHost; 27 class WebGraphicsContext3DCommandBufferImpl; 28 29 // Glue code to expose functionality needed by media::GpuVideoAccelerator to 30 // RenderViewImpl. This class is entirely an implementation detail of 31 // RenderViewImpl and only has its own header to allow extraction of its 32 // implementation from render_view_impl.cc which is already far too large. 33 // 34 // The RendererGpuVideoAcceleratorFactories can be constructed on any thread, 35 // but subsequent calls to all public methods of the class must be called from 36 // the |task_runner_|, as provided during construction. 37 class CONTENT_EXPORT RendererGpuVideoAcceleratorFactories 38 : public media::GpuVideoAcceleratorFactories { 39 public: 40 // Takes a ref on |gpu_channel_host| and tests |context| for loss before each 41 // use. Safe to call from any thread. 42 static scoped_refptr<RendererGpuVideoAcceleratorFactories> Create( 43 GpuChannelHost* gpu_channel_host, 44 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, 45 const scoped_refptr<ContextProviderCommandBuffer>& context_provider); 46 47 // media::GpuVideoAcceleratorFactories implementation. 48 virtual scoped_ptr<media::VideoDecodeAccelerator> 49 CreateVideoDecodeAccelerator() OVERRIDE; 50 virtual scoped_ptr<media::VideoEncodeAccelerator> 51 CreateVideoEncodeAccelerator() OVERRIDE; 52 // Creates textures and produces them into mailboxes. Returns true on success 53 // or false on failure. 54 virtual bool CreateTextures(int32 count, 55 const gfx::Size& size, 56 std::vector<uint32>* texture_ids, 57 std::vector<gpu::Mailbox>* texture_mailboxes, 58 uint32 texture_target) OVERRIDE; 59 virtual void DeleteTexture(uint32 texture_id) OVERRIDE; 60 virtual void WaitSyncPoint(uint32 sync_point) OVERRIDE; 61 virtual void ReadPixels(uint32 texture_id, 62 const gfx::Rect& visible_rect, 63 const SkBitmap& pixels) OVERRIDE; 64 virtual base::SharedMemory* CreateSharedMemory(size_t size) OVERRIDE; 65 virtual scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() OVERRIDE; 66 virtual std::vector<media::VideoEncodeAccelerator::SupportedProfile> 67 GetVideoEncodeAcceleratorSupportedProfiles() OVERRIDE; 68 69 private: 70 friend class base::RefCountedThreadSafe<RendererGpuVideoAcceleratorFactories>; 71 RendererGpuVideoAcceleratorFactories( 72 GpuChannelHost* gpu_channel_host, 73 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, 74 const scoped_refptr<ContextProviderCommandBuffer>& context_provider); 75 virtual ~RendererGpuVideoAcceleratorFactories(); 76 77 // Helper to bind |context_provider| to the |task_runner_| thread after 78 // construction. 79 void BindContext(); 80 81 // Helper to get a pointer to the WebGraphicsContext3DCommandBufferImpl, 82 // if it has not been lost yet. 83 WebGraphicsContext3DCommandBufferImpl* GetContext3d(); 84 GLHelper* GetGLHelper(); 85 86 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; 87 scoped_refptr<GpuChannelHost> gpu_channel_host_; 88 scoped_refptr<ContextProviderCommandBuffer> context_provider_; 89 scoped_ptr<GLHelper> gl_helper_; 90 91 // For sending requests to allocate shared memory in the Browser process. 92 scoped_refptr<ThreadSafeSender> thread_safe_sender_; 93 94 DISALLOW_COPY_AND_ASSIGN(RendererGpuVideoAcceleratorFactories); 95 }; 96 97 } // namespace content 98 99 #endif // CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_ 100