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| 1 // Copyright (c) 2010 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 CHROME_RENDERER_GPU_VIDEO_SERVICE_HOST_H_ | |
| 6 #define CHROME_RENDERER_GPU_VIDEO_SERVICE_HOST_H_ | |
| 7 | |
| 8 #include "base/singleton.h" | |
| 9 #include "chrome/renderer/gpu_channel_host.h" | |
| 10 #include "chrome/renderer/gpu_video_decoder_host.h" | |
| 11 #include "ipc/ipc_channel.h" | |
| 12 #include "media/base/buffers.h" | |
| 13 #include "media/base/video_frame.h" | |
| 14 | |
| 15 // GpuVideoServiceHost lives on IO thread and is used to dispatch IPC messages | |
| 16 // to GpuVideoDecoderHost objects. | |
| 17 class GpuVideoServiceHost : public IPC::ChannelProxy::MessageFilter { | |
| 18 public: | |
| 19 GpuVideoServiceHost(); | |
| 20 | |
| 21 // IPC::ChannelProxy::MessageFilter implementations. | |
| 22 virtual bool OnMessageReceived(const IPC::Message& message); | |
| 23 virtual void OnFilterAdded(IPC::Channel* channel); | |
| 24 virtual void OnFilterRemoved(); | |
| 25 virtual void OnChannelClosing(); | |
| 26 | |
| 27 // Called on RenderThread to create a hardware accelerated video decoder | |
| 28 // in the GPU process. | |
| 29 // | |
| 30 // A routing ID for the GLES2 context needs to be provided when creating a | |
| 31 // hardware video decoder. This is important because the resources used by | |
| 32 // the video decoder needs to be shared with the GLES2 context corresponding | |
| 33 // to the RenderView. | |
| 34 // | |
| 35 // This means that a GPU video decoder is tied to a specific RenderView and | |
| 36 // its GLES2 context in the GPU process. | |
| 37 // | |
| 38 // Returns a GpuVideoDecoderHost as a handle to control the video decoder. | |
| 39 GpuVideoDecoderHost* CreateVideoDecoder(int context_route_id); | |
| 40 | |
| 41 private: | |
| 42 IPC::Channel* channel_; | |
| 43 | |
| 44 // Router to send messages to a GpuVideoDecoderHost. | |
| 45 MessageRouter router_; | |
| 46 | |
| 47 // ID for the next GpuVideoDecoderHost. | |
| 48 int32 next_decoder_host_id_; | |
| 49 | |
| 50 DISALLOW_COPY_AND_ASSIGN(GpuVideoServiceHost); | |
| 51 }; | |
| 52 | |
| 53 #endif // CHROME_RENDERER_GPU_VIDEO_SERVICE_HOST_H_ | |
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