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| 1 // Copyright (c) 2012 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 #include "content/renderer/media/stream_texture_factory_impl_android.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/compiler_specific.h" | |
| 9 #include "base/message_loop/message_loop_proxy.h" | |
| 10 #include "base/synchronization/lock.h" | |
| 11 #include "content/common/android/surface_texture_peer.h" | |
| 12 #include "content/common/gpu/client/gpu_channel_host.h" | |
| 13 #include "content/common/gpu/gpu_messages.h" | |
| 14 #include "content/renderer/render_thread_impl.h" | |
| 15 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h" | |
| 16 #include "ui/gfx/size.h" | |
| 17 | |
| 18 namespace { | |
| 19 | |
| 20 // Implementation of the StreamTextureProxy class. This class listens to all | |
| 21 // the stream texture updates and forward them to the | |
| 22 // cc::VideoFrameProvider::Client. | |
| 23 class StreamTextureProxyImpl : public webkit_media::StreamTextureProxy, | |
| 24 public content::StreamTextureHost::Listener { | |
| 25 public: | |
| 26 explicit StreamTextureProxyImpl(content::StreamTextureHost* host); | |
| 27 virtual ~StreamTextureProxyImpl() {} | |
| 28 | |
| 29 // webkit_media::StreamTextureProxy implementation: | |
| 30 virtual void BindToCurrentThread( | |
| 31 int stream_id, int width, int height) OVERRIDE; | |
| 32 virtual bool IsBoundToThread() OVERRIDE { return !!loop_.get(); } | |
| 33 virtual void SetClient(cc::VideoFrameProvider::Client* client) OVERRIDE; | |
| 34 virtual void Release() OVERRIDE; | |
| 35 | |
| 36 // StreamTextureHost::Listener implementation: | |
| 37 virtual void OnFrameAvailable() OVERRIDE; | |
| 38 virtual void OnMatrixChanged(const float matrix[16]) OVERRIDE; | |
| 39 | |
| 40 private: | |
| 41 scoped_ptr<content::StreamTextureHost> host_; | |
| 42 scoped_refptr<base::MessageLoopProxy> loop_; | |
| 43 | |
| 44 base::Lock client_lock_; | |
| 45 cc::VideoFrameProvider::Client* client_; | |
| 46 | |
| 47 DISALLOW_COPY_AND_ASSIGN(StreamTextureProxyImpl); | |
| 48 }; | |
| 49 | |
| 50 StreamTextureProxyImpl::StreamTextureProxyImpl( | |
| 51 content::StreamTextureHost* host) | |
| 52 : host_(host), | |
| 53 client_(NULL) { | |
| 54 DCHECK(host); | |
| 55 host->SetListener(this); | |
| 56 } | |
| 57 | |
| 58 void StreamTextureProxyImpl::Release() { | |
| 59 SetClient(NULL); | |
| 60 if (loop_.get() && loop_.get() != base::MessageLoopProxy::current()) | |
| 61 loop_->DeleteSoon(FROM_HERE, this); | |
| 62 else | |
| 63 delete this; | |
| 64 } | |
| 65 | |
| 66 void StreamTextureProxyImpl::SetClient(cc::VideoFrameProvider::Client* client) { | |
| 67 base::AutoLock lock(client_lock_); | |
| 68 client_ = client; | |
| 69 } | |
| 70 | |
| 71 void StreamTextureProxyImpl::BindToCurrentThread( | |
| 72 int stream_id, int width, int height) { | |
| 73 loop_ = base::MessageLoopProxy::current(); | |
| 74 host_->Initialize(stream_id, gfx::Size(width, height)); | |
| 75 } | |
| 76 | |
| 77 void StreamTextureProxyImpl::OnFrameAvailable() { | |
| 78 base::AutoLock lock(client_lock_); | |
| 79 if (client_) | |
| 80 client_->DidReceiveFrame(); | |
| 81 } | |
| 82 | |
| 83 void StreamTextureProxyImpl::OnMatrixChanged(const float matrix[16]) { | |
| 84 base::AutoLock lock(client_lock_); | |
| 85 if (client_) | |
| 86 client_->DidUpdateMatrix(matrix); | |
| 87 } | |
| 88 | |
| 89 } // anonymous namespace | |
| 90 | |
| 91 namespace content { | |
| 92 | |
| 93 StreamTextureFactoryImpl::StreamTextureFactoryImpl( | |
| 94 WebKit::WebGraphicsContext3D* context, | |
| 95 GpuChannelHost* channel, | |
| 96 int view_id) | |
| 97 : context_(context), | |
| 98 channel_(channel), | |
| 99 view_id_(view_id) { | |
| 100 DCHECK(context_); | |
| 101 DCHECK(channel); | |
| 102 } | |
| 103 | |
| 104 StreamTextureFactoryImpl::~StreamTextureFactoryImpl() { | |
| 105 } | |
| 106 | |
| 107 webkit_media::StreamTextureProxy* StreamTextureFactoryImpl::CreateProxy() { | |
| 108 DCHECK(channel_.get()); | |
| 109 StreamTextureHost* host = new StreamTextureHost(channel_.get()); | |
| 110 return new StreamTextureProxyImpl(host); | |
| 111 } | |
| 112 | |
| 113 void StreamTextureFactoryImpl::EstablishPeer(int stream_id, int player_id) { | |
| 114 DCHECK(channel_.get()); | |
| 115 channel_->Send(new GpuChannelMsg_EstablishStreamTexture( | |
| 116 stream_id, view_id_, player_id)); | |
| 117 } | |
| 118 | |
| 119 unsigned StreamTextureFactoryImpl::CreateStreamTexture(unsigned* texture_id) { | |
| 120 unsigned stream_id = 0; | |
| 121 if (context_->makeContextCurrent()) { | |
| 122 *texture_id = context_->createTexture(); | |
| 123 stream_id = context_->createStreamTextureCHROMIUM(*texture_id); | |
| 124 context_->flush(); | |
| 125 } | |
| 126 return stream_id; | |
| 127 } | |
| 128 | |
| 129 void StreamTextureFactoryImpl::DestroyStreamTexture(unsigned texture_id) { | |
| 130 if (context_->makeContextCurrent()) { | |
| 131 context_->destroyStreamTextureCHROMIUM(texture_id); | |
| 132 context_->deleteTexture(texture_id); | |
| 133 context_->flush(); | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 } // namespace content | |
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