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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/frame_rate_controller.h" | 7 #include "cc/frame_rate_controller.h" |
| 8 | 8 |
| 9 #include "base/debug/trace_event.h" | 9 #include "base/debug/trace_event.h" |
| 10 #include "base/logging.h" | 10 #include "base/logging.h" |
| 11 #include "cc/delay_based_time_source.h" | 11 #include "cc/delay_based_time_source.h" |
| 12 #include "cc/time_source.h" | 12 #include "cc/time_source.h" |
| 13 #include "cc/thread.h" |
| 13 | 14 |
| 14 namespace { | 15 namespace { |
| 15 | 16 |
| 16 // This will be the maximum number of pending frames unless | 17 // This will be the maximum number of pending frames unless |
| 17 // FrameRateController::setMaxFramesPending is called. | 18 // FrameRateController::setMaxFramesPending is called. |
| 18 const int defaultMaxFramesPending = 2; | 19 const int defaultMaxFramesPending = 2; |
| 19 | 20 |
| 20 } // namespace | 21 } // namespace |
| 21 | 22 |
| 22 namespace cc { | 23 namespace cc { |
| (...skipping 17 matching lines...) Expand all Loading... |
| 40 }; | 41 }; |
| 41 | 42 |
| 42 FrameRateController::FrameRateController(scoped_refptr<TimeSource> timer) | 43 FrameRateController::FrameRateController(scoped_refptr<TimeSource> timer) |
| 43 : m_client(0) | 44 : m_client(0) |
| 44 , m_numFramesPending(0) | 45 , m_numFramesPending(0) |
| 45 , m_maxFramesPending(defaultMaxFramesPending) | 46 , m_maxFramesPending(defaultMaxFramesPending) |
| 46 , m_timeSource(timer) | 47 , m_timeSource(timer) |
| 47 , m_active(false) | 48 , m_active(false) |
| 48 , m_swapBuffersCompleteSupported(true) | 49 , m_swapBuffersCompleteSupported(true) |
| 49 , m_isTimeSourceThrottling(true) | 50 , m_isTimeSourceThrottling(true) |
| 51 , m_thread(0) |
| 52 , m_weakFactory(ALLOW_THIS_IN_INITIALIZER_LIST(this)) |
| 50 { | 53 { |
| 51 m_timeSourceClientAdapter = FrameRateControllerTimeSourceAdapter::create(thi
s); | 54 m_timeSourceClientAdapter = FrameRateControllerTimeSourceAdapter::create(thi
s); |
| 52 m_timeSource->setClient(m_timeSourceClientAdapter.get()); | 55 m_timeSource->setClient(m_timeSourceClientAdapter.get()); |
| 53 } | 56 } |
| 54 | 57 |
| 55 FrameRateController::FrameRateController(Thread* thread) | 58 FrameRateController::FrameRateController(Thread* thread) |
| 56 : m_client(0) | 59 : m_client(0) |
| 57 , m_numFramesPending(0) | 60 , m_numFramesPending(0) |
| 58 , m_maxFramesPending(defaultMaxFramesPending) | 61 , m_maxFramesPending(defaultMaxFramesPending) |
| 59 , m_active(false) | 62 , m_active(false) |
| 60 , m_swapBuffersCompleteSupported(true) | 63 , m_swapBuffersCompleteSupported(true) |
| 61 , m_isTimeSourceThrottling(false) | 64 , m_isTimeSourceThrottling(false) |
| 62 , m_manualTicker(new Timer(thread, this)) | 65 , m_thread(thread) |
| 66 , m_weakFactory(ALLOW_THIS_IN_INITIALIZER_LIST(this)) |
| 63 { | 67 { |
| 64 } | 68 } |
| 65 | 69 |
| 66 FrameRateController::~FrameRateController() | 70 FrameRateController::~FrameRateController() |
| 67 { | 71 { |
| 68 if (m_isTimeSourceThrottling) | 72 if (m_isTimeSourceThrottling) |
| 69 m_timeSource->setActive(false); | 73 m_timeSource->setActive(false); |
| 70 } | 74 } |
| 71 | 75 |
| 72 void FrameRateController::setActive(bool active) | 76 void FrameRateController::setActive(bool active) |
| 73 { | 77 { |
| 74 if (m_active == active) | 78 if (m_active == active) |
| 75 return; | 79 return; |
| 76 TRACE_EVENT1("cc", "FrameRateController::setActive", "active", active); | 80 TRACE_EVENT1("cc", "FrameRateController::setActive", "active", active); |
| 77 m_active = active; | 81 m_active = active; |
| 78 | 82 |
| 79 if (m_isTimeSourceThrottling) | 83 if (m_isTimeSourceThrottling) |
| 80 m_timeSource->setActive(active); | 84 m_timeSource->setActive(active); |
| 81 else { | 85 else { |
| 82 if (active) | 86 if (active) |
| 83 postManualTick(); | 87 postManualTick(); |
| 84 else | 88 else |
| 85 m_manualTicker->stop(); | 89 m_weakFactory.InvalidateWeakPtrs(); |
| 86 } | 90 } |
| 87 } | 91 } |
| 88 | 92 |
| 89 void FrameRateController::setMaxFramesPending(int maxFramesPending) | 93 void FrameRateController::setMaxFramesPending(int maxFramesPending) |
| 90 { | 94 { |
| 91 DCHECK(maxFramesPending > 0); | 95 DCHECK(maxFramesPending > 0); |
| 92 m_maxFramesPending = maxFramesPending; | 96 m_maxFramesPending = maxFramesPending; |
| 93 } | 97 } |
| 94 | 98 |
| 95 void FrameRateController::setTimebaseAndInterval(base::TimeTicks timebase, base:
:TimeDelta interval) | 99 void FrameRateController::setTimebaseAndInterval(base::TimeTicks timebase, base:
:TimeDelta interval) |
| (...skipping 17 matching lines...) Expand all Loading... |
| 113 if (m_client) | 117 if (m_client) |
| 114 m_client->vsyncTick(throttled); | 118 m_client->vsyncTick(throttled); |
| 115 | 119 |
| 116 if (m_swapBuffersCompleteSupported && !m_isTimeSourceThrottling && m_numFram
esPending < m_maxFramesPending) | 120 if (m_swapBuffersCompleteSupported && !m_isTimeSourceThrottling && m_numFram
esPending < m_maxFramesPending) |
| 117 postManualTick(); | 121 postManualTick(); |
| 118 } | 122 } |
| 119 | 123 |
| 120 void FrameRateController::postManualTick() | 124 void FrameRateController::postManualTick() |
| 121 { | 125 { |
| 122 if (m_active) | 126 if (m_active) |
| 123 m_manualTicker->startOneShot(0); | 127 m_thread->postTask(base::Bind(&FrameRateController::manualTick, m_weakFa
ctory.GetWeakPtr())); |
| 124 } | 128 } |
| 125 | 129 |
| 126 void FrameRateController::onTimerFired() | 130 void FrameRateController::manualTick() |
| 127 { | 131 { |
| 128 onTimerTick(); | 132 onTimerTick(); |
| 129 } | 133 } |
| 130 | 134 |
| 131 void FrameRateController::didBeginFrame() | 135 void FrameRateController::didBeginFrame() |
| 132 { | 136 { |
| 133 if (m_swapBuffersCompleteSupported) | 137 if (m_swapBuffersCompleteSupported) |
| 134 m_numFramesPending++; | 138 m_numFramesPending++; |
| 135 else if (!m_isTimeSourceThrottling) | 139 else if (!m_isTimeSourceThrottling) |
| 136 postManualTick(); | 140 postManualTick(); |
| (...skipping 15 matching lines...) Expand all Loading... |
| 152 | 156 |
| 153 base::TimeTicks FrameRateController::nextTickTime() | 157 base::TimeTicks FrameRateController::nextTickTime() |
| 154 { | 158 { |
| 155 if (m_isTimeSourceThrottling) | 159 if (m_isTimeSourceThrottling) |
| 156 return m_timeSource->nextTickTime(); | 160 return m_timeSource->nextTickTime(); |
| 157 | 161 |
| 158 return base::TimeTicks(); | 162 return base::TimeTicks(); |
| 159 } | 163 } |
| 160 | 164 |
| 161 } | 165 } |
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