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1 /* | 1 /* |
2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
23 */ | 23 */ |
24 | 24 |
25 #include "config.h" | 25 #include "config.h" |
26 | 26 |
27 #include "cc/CCLayerTreeHostImpl.h" | 27 #include "cc/CCLayerTreeHostImpl.h" |
28 | 28 |
29 #include "Extensions3D.h" | 29 #include "Extensions3D.h" |
30 #include "LayerRendererChromium.h" | 30 #include "LayerRendererChromium.h" |
31 #include "TraceEvent.h" | 31 #include "TraceEvent.h" |
| 32 #include "TrackingTextureAllocator.h" |
32 #include "cc/CCActiveGestureAnimation.h" | 33 #include "cc/CCActiveGestureAnimation.h" |
33 #include "cc/CCDamageTracker.h" | 34 #include "cc/CCDamageTracker.h" |
34 #include "cc/CCDebugRectHistory.h" | 35 #include "cc/CCDebugRectHistory.h" |
35 #include "cc/CCDelayBasedTimeSource.h" | 36 #include "cc/CCDelayBasedTimeSource.h" |
36 #include "cc/CCDrawQuad.h" | 37 #include "cc/CCDrawQuad.h" |
37 #include "cc/CCFontAtlas.h" | 38 #include "cc/CCFontAtlas.h" |
38 #include "cc/CCFrameRateCounter.h" | 39 #include "cc/CCFrameRateCounter.h" |
39 #include "cc/CCGestureCurve.h" | 40 #include "cc/CCGestureCurve.h" |
40 #include "cc/CCHeadsUpDisplay.h" | 41 #include "cc/CCHeadsUpDisplay.h" |
41 #include "cc/CCLayerIterator.h" | 42 #include "cc/CCLayerIterator.h" |
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115 CCLayerTreeHostImpl::CCLayerTreeHostImpl(const CCLayerTreeSettings& settings, CC
LayerTreeHostImplClient* client) | 116 CCLayerTreeHostImpl::CCLayerTreeHostImpl(const CCLayerTreeSettings& settings, CC
LayerTreeHostImplClient* client) |
116 : m_client(client) | 117 : m_client(client) |
117 , m_sourceFrameNumber(-1) | 118 , m_sourceFrameNumber(-1) |
118 , m_frameNumber(0) | 119 , m_frameNumber(0) |
119 , m_rootScrollLayerImpl(0) | 120 , m_rootScrollLayerImpl(0) |
120 , m_currentlyScrollingLayerImpl(0) | 121 , m_currentlyScrollingLayerImpl(0) |
121 , m_scrollingLayerIdFromPreviousTree(-1) | 122 , m_scrollingLayerIdFromPreviousTree(-1) |
122 , m_settings(settings) | 123 , m_settings(settings) |
123 , m_deviceScaleFactor(1) | 124 , m_deviceScaleFactor(1) |
124 , m_visible(true) | 125 , m_visible(true) |
125 , m_sourceFrameCanBeDrawn(true) | 126 , m_contentsTexturesWerePurgedSinceLastCommit(false) |
| 127 , m_memoryAllocationLimitBytes(TextureManager::highLimitBytes(viewportSize()
)) |
126 , m_headsUpDisplay(CCHeadsUpDisplay::create()) | 128 , m_headsUpDisplay(CCHeadsUpDisplay::create()) |
127 , m_pageScale(1) | 129 , m_pageScale(1) |
128 , m_pageScaleDelta(1) | 130 , m_pageScaleDelta(1) |
129 , m_sentPageScaleDelta(1) | 131 , m_sentPageScaleDelta(1) |
130 , m_minPageScale(0) | 132 , m_minPageScale(0) |
131 , m_maxPageScale(0) | 133 , m_maxPageScale(0) |
132 , m_hasTransparentBackground(false) | 134 , m_hasTransparentBackground(false) |
133 , m_needsAnimateLayers(false) | 135 , m_needsAnimateLayers(false) |
134 , m_pinchGestureActive(false) | 136 , m_pinchGestureActive(false) |
135 , m_fpsCounter(CCFrameRateCounter::create()) | 137 , m_fpsCounter(CCFrameRateCounter::create()) |
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150 | 152 |
151 void CCLayerTreeHostImpl::beginCommit() | 153 void CCLayerTreeHostImpl::beginCommit() |
152 { | 154 { |
153 } | 155 } |
154 | 156 |
155 void CCLayerTreeHostImpl::commitComplete() | 157 void CCLayerTreeHostImpl::commitComplete() |
156 { | 158 { |
157 // Recompute max scroll position; must be after layer content bounds are | 159 // Recompute max scroll position; must be after layer content bounds are |
158 // updated. | 160 // updated. |
159 updateMaxScrollPosition(); | 161 updateMaxScrollPosition(); |
| 162 m_contentsTexturesWerePurgedSinceLastCommit = false; |
160 } | 163 } |
161 | 164 |
162 bool CCLayerTreeHostImpl::canDraw() | 165 bool CCLayerTreeHostImpl::canDraw() |
163 { | 166 { |
164 if (!m_rootLayerImpl) | 167 if (!m_rootLayerImpl) |
165 return false; | 168 return false; |
166 if (viewportSize().isEmpty()) | 169 if (viewportSize().isEmpty()) |
167 return false; | 170 return false; |
168 if (!m_layerRenderer) | 171 if (!m_layerRenderer) |
169 return false; | 172 return false; |
170 if (!m_sourceFrameCanBeDrawn) | 173 if (m_contentsTexturesWerePurgedSinceLastCommit) |
171 return false; | 174 return false; |
172 return true; | 175 return true; |
173 } | 176 } |
174 | 177 |
175 CCGraphicsContext* CCLayerTreeHostImpl::context() | 178 CCGraphicsContext* CCLayerTreeHostImpl::context() const |
176 { | 179 { |
177 return m_context.get(); | 180 return m_context.get(); |
178 } | 181 } |
179 | 182 |
180 void CCLayerTreeHostImpl::animate(double monotonicTime, double wallClockTime) | 183 void CCLayerTreeHostImpl::animate(double monotonicTime, double wallClockTime) |
181 { | 184 { |
182 animatePageScale(monotonicTime); | 185 animatePageScale(monotonicTime); |
183 animateLayers(monotonicTime, wallClockTime); | 186 animateLayers(monotonicTime, wallClockTime); |
184 animateGestures(monotonicTime); | 187 animateGestures(monotonicTime); |
185 } | 188 } |
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395 frame.renderSurfaceLayerList->clear(); | 398 frame.renderSurfaceLayerList->clear(); |
396 frame.willDrawLayers.clear(); | 399 frame.willDrawLayers.clear(); |
397 | 400 |
398 if (!calculateRenderPasses(frame.renderPasses, *frame.renderSurfaceLayerList
, frame.willDrawLayers)) | 401 if (!calculateRenderPasses(frame.renderPasses, *frame.renderSurfaceLayerList
, frame.willDrawLayers)) |
399 return false; | 402 return false; |
400 | 403 |
401 // If we return true, then we expect drawLayers() to be called before this f
unction is called again. | 404 // If we return true, then we expect drawLayers() to be called before this f
unction is called again. |
402 return true; | 405 return true; |
403 } | 406 } |
404 | 407 |
405 void CCLayerTreeHostImpl::setContentsMemoryAllocationLimitBytes(size_t bytes) | 408 void CCLayerTreeHostImpl::releaseContentsTextures() |
406 { | 409 { |
407 m_client->postSetContentsMemoryAllocationLimitBytesToMainThreadOnImplThread(
bytes); | 410 contentsTextureAllocator()->deleteAllTextures(); |
| 411 m_contentsTexturesWerePurgedSinceLastCommit = true; |
| 412 } |
| 413 |
| 414 void CCLayerTreeHostImpl::setMemoryAllocationLimitBytes(size_t bytes) |
| 415 { |
| 416 if (m_memoryAllocationLimitBytes == bytes) |
| 417 return; |
| 418 m_memoryAllocationLimitBytes = bytes; |
| 419 |
| 420 ASSERT(bytes); |
| 421 m_client->setNeedsCommitOnImplThread(); |
408 } | 422 } |
409 | 423 |
410 void CCLayerTreeHostImpl::drawLayers(const FrameData& frame) | 424 void CCLayerTreeHostImpl::drawLayers(const FrameData& frame) |
411 { | 425 { |
412 TRACE_EVENT0("cc", "CCLayerTreeHostImpl::drawLayers"); | 426 TRACE_EVENT0("cc", "CCLayerTreeHostImpl::drawLayers"); |
413 ASSERT(canDraw()); | 427 ASSERT(canDraw()); |
414 ASSERT(!frame.renderPasses.isEmpty()); | 428 ASSERT(!frame.renderPasses.isEmpty()); |
415 | 429 |
416 // FIXME: use the frame begin time from the overall compositor scheduler. | 430 // FIXME: use the frame begin time from the overall compositor scheduler. |
417 // This value is currently inaccessible because it is up in Chromium's | 431 // This value is currently inaccessible because it is up in Chromium's |
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1070 return; | 1084 return; |
1071 | 1085 |
1072 bool isContinuing = m_activeGestureAnimation->animate(monotonicTime); | 1086 bool isContinuing = m_activeGestureAnimation->animate(monotonicTime); |
1073 if (isContinuing) | 1087 if (isContinuing) |
1074 m_client->setNeedsRedrawOnImplThread(); | 1088 m_client->setNeedsRedrawOnImplThread(); |
1075 else | 1089 else |
1076 m_activeGestureAnimation.clear(); | 1090 m_activeGestureAnimation.clear(); |
1077 } | 1091 } |
1078 | 1092 |
1079 } // namespace WebCore | 1093 } // namespace WebCore |
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