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.
5 #ifndef CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
6 #define CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
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"
24 class ContextProviderCommandBuffer;
26 class WebGraphicsContext3DCommandBufferImpl;
28 // Glue code to expose functionality needed by media::GpuVideoAccelerator to
29 // RenderViewImpl. This class is entirely an implementation detail of
30 // RenderViewImpl and only has its own header to allow extraction of its
31 // implementation from render_view_impl.cc which is already far too large.
33 // The RendererGpuVideoAcceleratorFactories can be constructed on any thread,
34 // but subsequent calls to all public methods of the class must be called from
35 // the |message_loop_proxy_|, as provided during construction.
36 class CONTENT_EXPORT RendererGpuVideoAcceleratorFactories
37 : public media::GpuVideoAcceleratorFactories {
39 // Takes a ref on |gpu_channel_host| and tests |context| for loss before each
40 // use. Safe to call from any thread.
41 RendererGpuVideoAcceleratorFactories(
42 GpuChannelHost* gpu_channel_host,
43 const scoped_refptr<base::MessageLoopProxy>& message_loop_proxy,
44 const scoped_refptr<ContextProviderCommandBuffer>& context_provider);
46 // media::GpuVideoAcceleratorFactories implementation.
47 virtual scoped_ptr<media::VideoDecodeAccelerator>
48 CreateVideoDecodeAccelerator(
49 media::VideoCodecProfile profile,
50 media::VideoDecodeAccelerator::Client* client) OVERRIDE;
51 virtual scoped_ptr<media::VideoEncodeAccelerator>
52 CreateVideoEncodeAccelerator(
53 media::VideoEncodeAccelerator::Client* client) OVERRIDE;
54 // Creates textures and produces them into mailboxes. Returns a sync point to
55 // wait on before using the mailboxes, or 0 on failure.
56 virtual uint32 CreateTextures(int32 count,
57 const gfx::Size& size,
58 std::vector<uint32>* texture_ids,
59 std::vector<gpu::Mailbox>* texture_mailboxes,
60 uint32 texture_target) OVERRIDE;
61 virtual void DeleteTexture(uint32 texture_id) OVERRIDE;
62 virtual void WaitSyncPoint(uint32 sync_point) OVERRIDE;
63 virtual void ReadPixels(uint32 texture_id,
64 const gfx::Rect& visible_rect,
65 const SkBitmap& pixels) OVERRIDE;
66 virtual base::SharedMemory* CreateSharedMemory(size_t size) OVERRIDE;
67 virtual scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() OVERRIDE;
70 friend class base::RefCountedThreadSafe<RendererGpuVideoAcceleratorFactories>;
71 virtual ~RendererGpuVideoAcceleratorFactories();
74 // Helper to get a pointer to the WebGraphicsContext3DCommandBufferImpl,
75 // if it has not been lost yet.
76 WebGraphicsContext3DCommandBufferImpl* GetContext3d();
78 scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
79 scoped_refptr<GpuChannelHost> gpu_channel_host_;
80 scoped_refptr<ContextProviderCommandBuffer> context_provider_;
82 // For sending requests to allocate shared memory in the Browser process.
83 scoped_refptr<ThreadSafeSender> thread_safe_sender_;
85 DISALLOW_COPY_AND_ASSIGN(RendererGpuVideoAcceleratorFactories);
88 } // namespace content
90 #endif // CONTENT_RENDERER_MEDIA_RENDERER_GPU_VIDEO_ACCELERATOR_FACTORIES_H_