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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "config.h" | |
| 6 | |
| 7 #include "CCScheduler.h" | |
| 8 | |
| 9 #include "TraceEvent.h" | |
| 10 #include <base/auto_reset.h> | |
| 11 | |
| 12 namespace cc { | |
| 13 | |
| 14 CCScheduler::CCScheduler(CCSchedulerClient* client, scoped_ptr<CCFrameRateContro
ller> frameRateController) | |
| 15 : m_client(client) | |
| 16 , m_frameRateController(frameRateController.Pass()) | |
| 17 , m_insideProcessScheduledActions(false) | |
| 18 { | |
| 19 ASSERT(m_client); | |
| 20 m_frameRateController->setClient(this); | |
| 21 ASSERT(!m_stateMachine.vsyncCallbackNeeded()); | |
| 22 } | |
| 23 | |
| 24 CCScheduler::~CCScheduler() | |
| 25 { | |
| 26 m_frameRateController->setActive(false); | |
| 27 } | |
| 28 | |
| 29 void CCScheduler::setCanBeginFrame(bool can) | |
| 30 { | |
| 31 m_stateMachine.setCanBeginFrame(can); | |
| 32 processScheduledActions(); | |
| 33 } | |
| 34 | |
| 35 void CCScheduler::setVisible(bool visible) | |
| 36 { | |
| 37 m_stateMachine.setVisible(visible); | |
| 38 processScheduledActions(); | |
| 39 } | |
| 40 | |
| 41 void CCScheduler::setCanDraw(bool canDraw) | |
| 42 { | |
| 43 m_stateMachine.setCanDraw(canDraw); | |
| 44 processScheduledActions(); | |
| 45 } | |
| 46 | |
| 47 void CCScheduler::setNeedsCommit() | |
| 48 { | |
| 49 m_stateMachine.setNeedsCommit(); | |
| 50 processScheduledActions(); | |
| 51 } | |
| 52 | |
| 53 void CCScheduler::setNeedsForcedCommit() | |
| 54 { | |
| 55 m_stateMachine.setNeedsForcedCommit(); | |
| 56 processScheduledActions(); | |
| 57 } | |
| 58 | |
| 59 void CCScheduler::setNeedsRedraw() | |
| 60 { | |
| 61 m_stateMachine.setNeedsRedraw(); | |
| 62 processScheduledActions(); | |
| 63 } | |
| 64 | |
| 65 void CCScheduler::setNeedsForcedRedraw() | |
| 66 { | |
| 67 m_stateMachine.setNeedsForcedRedraw(); | |
| 68 processScheduledActions(); | |
| 69 } | |
| 70 | |
| 71 void CCScheduler::setMainThreadNeedsLayerTextures() | |
| 72 { | |
| 73 m_stateMachine.setMainThreadNeedsLayerTextures(); | |
| 74 processScheduledActions(); | |
| 75 } | |
| 76 | |
| 77 void CCScheduler::beginFrameComplete() | |
| 78 { | |
| 79 TRACE_EVENT0("cc", "CCScheduler::beginFrameComplete"); | |
| 80 m_stateMachine.beginFrameComplete(); | |
| 81 processScheduledActions(); | |
| 82 } | |
| 83 | |
| 84 void CCScheduler::beginFrameAborted() | |
| 85 { | |
| 86 TRACE_EVENT0("cc", "CCScheduler::beginFrameAborted"); | |
| 87 m_stateMachine.beginFrameAborted(); | |
| 88 processScheduledActions(); | |
| 89 } | |
| 90 | |
| 91 void CCScheduler::setMaxFramesPending(int maxFramesPending) | |
| 92 { | |
| 93 m_frameRateController->setMaxFramesPending(maxFramesPending); | |
| 94 } | |
| 95 | |
| 96 void CCScheduler::setSwapBuffersCompleteSupported(bool supported) | |
| 97 { | |
| 98 m_frameRateController->setSwapBuffersCompleteSupported(supported); | |
| 99 } | |
| 100 | |
| 101 void CCScheduler::didSwapBuffersComplete() | |
| 102 { | |
| 103 TRACE_EVENT0("cc", "CCScheduler::didSwapBuffersComplete"); | |
| 104 m_frameRateController->didFinishFrame(); | |
| 105 } | |
| 106 | |
| 107 void CCScheduler::didLoseContext() | |
| 108 { | |
| 109 TRACE_EVENT0("cc", "CCScheduler::didLoseContext"); | |
| 110 m_frameRateController->didAbortAllPendingFrames(); | |
| 111 m_stateMachine.didLoseContext(); | |
| 112 processScheduledActions(); | |
| 113 } | |
| 114 | |
| 115 void CCScheduler::didRecreateContext() | |
| 116 { | |
| 117 TRACE_EVENT0("cc", "CCScheduler::didRecreateContext"); | |
| 118 m_stateMachine.didRecreateContext(); | |
| 119 processScheduledActions(); | |
| 120 } | |
| 121 | |
| 122 void CCScheduler::setTimebaseAndInterval(base::TimeTicks timebase, base::TimeDel
ta interval) | |
| 123 { | |
| 124 m_frameRateController->setTimebaseAndInterval(timebase, interval); | |
| 125 } | |
| 126 | |
| 127 base::TimeTicks CCScheduler::anticipatedDrawTime() | |
| 128 { | |
| 129 return m_frameRateController->nextTickTime(); | |
| 130 } | |
| 131 | |
| 132 void CCScheduler::vsyncTick(bool throttled) | |
| 133 { | |
| 134 TRACE_EVENT1("cc", "CCScheduler::vsyncTick", "throttled", throttled); | |
| 135 if (!throttled) | |
| 136 m_stateMachine.didEnterVSync(); | |
| 137 processScheduledActions(); | |
| 138 if (!throttled) | |
| 139 m_stateMachine.didLeaveVSync(); | |
| 140 } | |
| 141 | |
| 142 void CCScheduler::processScheduledActions() | |
| 143 { | |
| 144 // We do not allow processScheduledActions to be recursive. | |
| 145 // The top-level call will iteratively execute the next action for us anyway
. | |
| 146 if (m_insideProcessScheduledActions) | |
| 147 return; | |
| 148 | |
| 149 AutoReset<bool> markInside(&m_insideProcessScheduledActions, true); | |
| 150 | |
| 151 CCSchedulerStateMachine::Action action = m_stateMachine.nextAction(); | |
| 152 while (action != CCSchedulerStateMachine::ACTION_NONE) { | |
| 153 m_stateMachine.updateState(action); | |
| 154 TRACE_EVENT1("cc", "CCScheduler::processScheduledActions()", "action", a
ction); | |
| 155 | |
| 156 switch (action) { | |
| 157 case CCSchedulerStateMachine::ACTION_NONE: | |
| 158 break; | |
| 159 case CCSchedulerStateMachine::ACTION_BEGIN_FRAME: | |
| 160 m_client->scheduledActionBeginFrame(); | |
| 161 break; | |
| 162 case CCSchedulerStateMachine::ACTION_COMMIT: | |
| 163 m_client->scheduledActionCommit(); | |
| 164 break; | |
| 165 case CCSchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE: { | |
| 166 CCScheduledActionDrawAndSwapResult result = m_client->scheduledActio
nDrawAndSwapIfPossible(); | |
| 167 m_stateMachine.didDrawIfPossibleCompleted(result.didDraw); | |
| 168 if (result.didSwap) | |
| 169 m_frameRateController->didBeginFrame(); | |
| 170 break; | |
| 171 } | |
| 172 case CCSchedulerStateMachine::ACTION_DRAW_FORCED: { | |
| 173 CCScheduledActionDrawAndSwapResult result = m_client->scheduledActio
nDrawAndSwapForced(); | |
| 174 if (result.didSwap) | |
| 175 m_frameRateController->didBeginFrame(); | |
| 176 break; | |
| 177 } case CCSchedulerStateMachine::ACTION_BEGIN_CONTEXT_RECREATION: | |
| 178 m_client->scheduledActionBeginContextRecreation(); | |
| 179 break; | |
| 180 case CCSchedulerStateMachine::ACTION_ACQUIRE_LAYER_TEXTURES_FOR_MAIN_THR
EAD: | |
| 181 m_client->scheduledActionAcquireLayerTexturesForMainThread(); | |
| 182 break; | |
| 183 } | |
| 184 action = m_stateMachine.nextAction(); | |
| 185 } | |
| 186 | |
| 187 // Activate or deactivate the frame rate controller. | |
| 188 m_frameRateController->setActive(m_stateMachine.vsyncCallbackNeeded()); | |
| 189 m_client->didAnticipatedDrawTimeChange(m_frameRateController->nextTickTime()
); | |
| 190 } | |
| 191 | |
| 192 } // namespace cc | |
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