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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "config.h" | 5 #include "config.h" |
6 | 6 |
7 #include "cc/video_layer_impl.h" | 7 #include "cc/video_layer_impl.h" |
8 | 8 |
9 #include "NotImplemented.h" | 9 #include "NotImplemented.h" |
10 #include "cc/io_surface_draw_quad.h" | 10 #include "cc/io_surface_draw_quad.h" |
11 #include "cc/layer_tree_host_impl.h" | 11 #include "cc/layer_tree_host_impl.h" |
12 #include "cc/proxy.h" | |
13 #include "cc/quad_sink.h" | 12 #include "cc/quad_sink.h" |
14 #include "cc/resource_provider.h" | 13 #include "cc/resource_provider.h" |
15 #include "cc/stream_video_draw_quad.h" | 14 #include "cc/stream_video_draw_quad.h" |
16 #include "cc/texture_draw_quad.h" | 15 #include "cc/texture_draw_quad.h" |
17 #include "cc/yuv_video_draw_quad.h" | 16 #include "cc/yuv_video_draw_quad.h" |
18 #include "third_party/khronos/GLES2/gl2.h" | 17 #include "third_party/khronos/GLES2/gl2.h" |
19 #include "third_party/khronos/GLES2/gl2ext.h" | 18 #include "third_party/khronos/GLES2/gl2ext.h" |
20 #include <public/WebVideoFrame.h> | 19 #include <public/WebVideoFrame.h> |
21 | 20 |
22 namespace cc { | 21 namespace cc { |
23 | 22 |
24 VideoLayerImpl::VideoLayerImpl(int id, WebKit::WebVideoFrameProvider* provider) | 23 VideoLayerImpl::VideoLayerImpl(int id, WebKit::WebVideoFrameProvider* provider) |
25 : LayerImpl(id) | 24 : LayerImpl(id) |
26 , m_provider(provider) | 25 , m_provider(provider) |
27 , m_frame(0) | 26 , m_frame(0) |
28 , m_externalTextureResource(0) | 27 , m_externalTextureResource(0) |
29 { | 28 { |
30 // This matrix is the default transformation for stream textures, and flips
on the Y axis. | 29 // This matrix is the default transformation for stream textures, and flips
on the Y axis. |
31 m_streamTextureMatrix = WebKit::WebTransformationMatrix( | 30 m_streamTextureMatrix = WebKit::WebTransformationMatrix( |
32 1, 0, 0, 0, | 31 1, 0, 0, 0, |
33 0, -1, 0, 0, | 32 0, -1, 0, 0, |
34 0, 0, 1, 0, | 33 0, 0, 1, 0, |
35 0, 1, 0, 1); | 34 0, 1, 0, 1); |
36 | 35 |
37 // This only happens during a commit on the compositor thread while the main | 36 // This only happens during a commit on the compositor thread while the main |
38 // thread is blocked. That makes this a thread-safe call to set the video | 37 // thread is blocked. That makes this a thread-safe call to set the video |
39 // frame provider client that does not require a lock. The same is true of | 38 // frame provider client that does not require a lock. The same is true of |
40 // the call in the destructor. | 39 // the call in the destructor. |
41 DCHECK(Proxy::isMainThreadBlocked()); | |
42 m_provider->setVideoFrameProviderClient(this); | 40 m_provider->setVideoFrameProviderClient(this); |
43 } | 41 } |
44 | 42 |
45 VideoLayerImpl::~VideoLayerImpl() | 43 VideoLayerImpl::~VideoLayerImpl() |
46 { | 44 { |
47 // See comment in constructor for why this doesn't need a lock. | 45 // See comment in constructor for why this doesn't need a lock. |
48 DCHECK(Proxy::isMainThreadBlocked()); | |
49 if (m_provider) { | 46 if (m_provider) { |
50 m_provider->setVideoFrameProviderClient(0); | 47 m_provider->setVideoFrameProviderClient(0); |
51 m_provider = 0; | 48 m_provider = 0; |
52 } | 49 } |
53 freePlaneData(layerTreeHostImpl()->resourceProvider()); | 50 freePlaneData(layerTreeHostImpl()->resourceProvider()); |
54 | 51 |
55 #ifndef NDEBUG | 52 #ifndef NDEBUG |
56 for (unsigned i = 0; i < WebKit::WebVideoFrame::maxPlanes; ++i) | 53 for (unsigned i = 0; i < WebKit::WebVideoFrame::maxPlanes; ++i) |
57 DCHECK(!m_framePlanes[i].resourceId); | 54 DCHECK(!m_framePlanes[i].resourceId); |
58 DCHECK(!m_externalTextureResource); | 55 DCHECK(!m_externalTextureResource); |
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81 case WebKit::WebVideoFrame::FormatRGB32: | 78 case WebKit::WebVideoFrame::FormatRGB32: |
82 case WebKit::WebVideoFrame::FormatEmpty: | 79 case WebKit::WebVideoFrame::FormatEmpty: |
83 case WebKit::WebVideoFrame::FormatI420: | 80 case WebKit::WebVideoFrame::FormatI420: |
84 notImplemented(); | 81 notImplemented(); |
85 } | 82 } |
86 return GL_INVALID_VALUE; | 83 return GL_INVALID_VALUE; |
87 } | 84 } |
88 | 85 |
89 void VideoLayerImpl::willDraw(ResourceProvider* resourceProvider) | 86 void VideoLayerImpl::willDraw(ResourceProvider* resourceProvider) |
90 { | 87 { |
91 DCHECK(Proxy::isImplThread()); | |
92 LayerImpl::willDraw(resourceProvider); | 88 LayerImpl::willDraw(resourceProvider); |
93 | 89 |
94 // Explicitly acquire and release the provider mutex so it can be held from | 90 // Explicitly acquire and release the provider mutex so it can be held from |
95 // willDraw to didDraw. Since the compositor thread is in the middle of | 91 // willDraw to didDraw. Since the compositor thread is in the middle of |
96 // drawing, the layer will not be destroyed before didDraw is called. | 92 // drawing, the layer will not be destroyed before didDraw is called. |
97 // Therefore, the only thing that will prevent this lock from being released | 93 // Therefore, the only thing that will prevent this lock from being released |
98 // is the GPU process locking it. As the GPU process can't cause the | 94 // is the GPU process locking it. As the GPU process can't cause the |
99 // destruction of the provider (calling stopUsingProvider), holding this | 95 // destruction of the provider (calling stopUsingProvider), holding this |
100 // lock should not cause a deadlock. | 96 // lock should not cause a deadlock. |
101 m_providerLock.Acquire(); | 97 m_providerLock.Acquire(); |
102 | 98 |
103 willDrawInternal(resourceProvider); | 99 willDrawInternal(resourceProvider); |
104 freeUnusedPlaneData(resourceProvider); | 100 freeUnusedPlaneData(resourceProvider); |
105 | 101 |
106 if (!m_frame) | 102 if (!m_frame) |
107 m_providerLock.Release(); | 103 m_providerLock.Release(); |
108 } | 104 } |
109 | 105 |
110 void VideoLayerImpl::willDrawInternal(ResourceProvider* resourceProvider) | 106 void VideoLayerImpl::willDrawInternal(ResourceProvider* resourceProvider) |
111 { | 107 { |
112 DCHECK(Proxy::isImplThread()); | |
113 DCHECK(!m_externalTextureResource); | 108 DCHECK(!m_externalTextureResource); |
114 | 109 |
115 if (!m_provider) { | 110 if (!m_provider) { |
116 m_frame = 0; | 111 m_frame = 0; |
117 return; | 112 return; |
118 } | 113 } |
119 | 114 |
120 m_frame = m_provider->getCurrentFrame(); | 115 m_frame = m_provider->getCurrentFrame(); |
121 | 116 |
122 if (!m_frame) | 117 if (!m_frame) |
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147 m_frame = 0; | 142 m_frame = 0; |
148 return; | 143 return; |
149 } | 144 } |
150 | 145 |
151 if (m_format == GL_TEXTURE_2D) | 146 if (m_format == GL_TEXTURE_2D) |
152 m_externalTextureResource = resourceProvider->createResourceFromExternal
Texture(m_frame->textureId()); | 147 m_externalTextureResource = resourceProvider->createResourceFromExternal
Texture(m_frame->textureId()); |
153 } | 148 } |
154 | 149 |
155 void VideoLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& appendQuad
sData) | 150 void VideoLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& appendQuad
sData) |
156 { | 151 { |
157 DCHECK(Proxy::isImplThread()); | |
158 | |
159 if (!m_frame) | 152 if (!m_frame) |
160 return; | 153 return; |
161 | 154 |
162 SharedQuadState* sharedQuadState = quadSink.useSharedQuadState(createSharedQ
uadState()); | 155 SharedQuadState* sharedQuadState = quadSink.useSharedQuadState(createSharedQ
uadState()); |
163 appendDebugBorderQuad(quadSink, sharedQuadState, appendQuadsData); | 156 appendDebugBorderQuad(quadSink, sharedQuadState, appendQuadsData); |
164 | 157 |
165 // FIXME: When we pass quads out of process, we need to double-buffer, or | 158 // FIXME: When we pass quads out of process, we need to double-buffer, or |
166 // otherwise synchonize use of all textures in the quad. | 159 // otherwise synchonize use of all textures in the quad. |
167 | 160 |
168 IntRect quadRect(IntPoint(), contentBounds()); | 161 IntRect quadRect(IntPoint(), contentBounds()); |
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210 quadSink.append(streamVideoQuad.PassAs<DrawQuad>(), appendQuadsData); | 203 quadSink.append(streamVideoQuad.PassAs<DrawQuad>(), appendQuadsData); |
211 break; | 204 break; |
212 } | 205 } |
213 default: | 206 default: |
214 CRASH(); // Someone updated convertVFCFormatToGC3DFormat above but updat
e this! | 207 CRASH(); // Someone updated convertVFCFormatToGC3DFormat above but updat
e this! |
215 } | 208 } |
216 } | 209 } |
217 | 210 |
218 void VideoLayerImpl::didDraw(ResourceProvider* resourceProvider) | 211 void VideoLayerImpl::didDraw(ResourceProvider* resourceProvider) |
219 { | 212 { |
220 DCHECK(Proxy::isImplThread()); | |
221 LayerImpl::didDraw(resourceProvider); | 213 LayerImpl::didDraw(resourceProvider); |
222 | 214 |
223 if (!m_frame) | 215 if (!m_frame) |
224 return; | 216 return; |
225 | 217 |
226 if (m_format == GL_TEXTURE_2D) { | 218 if (m_format == GL_TEXTURE_2D) { |
227 DCHECK(m_externalTextureResource); | 219 DCHECK(m_externalTextureResource); |
228 // FIXME: the following assert will not be true when sending resources t
o a | 220 // FIXME: the following assert will not be true when sending resources t
o a |
229 // parent compositor. We will probably need to hold on to m_frame for | 221 // parent compositor. We will probably need to hold on to m_frame for |
230 // longer, and have several "current frames" in the pipeline. | 222 // longer, and have several "current frames" in the pipeline. |
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378 str->append("video layer\n"); | 370 str->append("video layer\n"); |
379 LayerImpl::dumpLayerProperties(str, indent); | 371 LayerImpl::dumpLayerProperties(str, indent); |
380 } | 372 } |
381 | 373 |
382 const char* VideoLayerImpl::layerTypeAsString() const | 374 const char* VideoLayerImpl::layerTypeAsString() const |
383 { | 375 { |
384 return "VideoLayer"; | 376 return "VideoLayer"; |
385 } | 377 } |
386 | 378 |
387 } | 379 } |
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