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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 "cc/scheduler/frame_rate_controller.h" | 5 #include "cc/scheduler/frame_rate_controller.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/debug/trace_event.h" | 8 #include "base/debug/trace_event.h" |
| 9 #include "base/location.h" | 9 #include "base/location.h" |
| 10 #include "base/logging.h" | 10 #include "base/logging.h" |
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| 79 if (active) | 79 if (active) |
| 80 PostManualTick(); | 80 PostManualTick(); |
| 81 else | 81 else |
| 82 weak_factory_.InvalidateWeakPtrs(); | 82 weak_factory_.InvalidateWeakPtrs(); |
| 83 } | 83 } |
| 84 | 84 |
| 85 if (just_activated) { | 85 if (just_activated) { |
| 86 // TODO(brianderson): Use an adaptive parent compositor deadline. | 86 // TODO(brianderson): Use an adaptive parent compositor deadline. |
| 87 base::TimeTicks frame_time = NextTickTime() - interval_; | 87 base::TimeTicks frame_time = NextTickTime() - interval_; |
| 88 base::TimeTicks deadline = NextTickTime(); | 88 base::TimeTicks deadline = NextTickTime(); |
| 89 return BeginFrameArgs::Create(frame_time, deadline, interval_); | 89 BeginFrameArgs args = |
| 90 BeginFrameArgs::Create(frame_time, deadline, interval_); |
| 91 args.AdjustDeadline(deadline_adjustment_); |
| 92 return args; |
| 90 } | 93 } |
| 91 return BeginFrameArgs(); | 94 return BeginFrameArgs(); |
| 92 } | 95 } |
| 93 | 96 |
| 94 void FrameRateController::SetMaxSwapsPending(int max_swaps_pending) { | 97 void FrameRateController::SetMaxSwapsPending(int max_swaps_pending) { |
| 95 DCHECK_GE(max_swaps_pending, 0); | 98 DCHECK_GE(max_swaps_pending, 0); |
| 96 max_swaps_pending_ = max_swaps_pending; | 99 max_swaps_pending_ = max_swaps_pending; |
| 97 } | 100 } |
| 98 | 101 |
| 99 void FrameRateController::SetTimebaseAndInterval(base::TimeTicks timebase, | 102 void FrameRateController::SetTimebaseAndInterval(base::TimeTicks timebase, |
| 100 base::TimeDelta interval) { | 103 base::TimeDelta interval) { |
| 104 timebase = base::TimeTicks(); |
| 101 interval_ = interval; | 105 interval_ = interval; |
| 102 if (is_time_source_throttling_) | 106 if (is_time_source_throttling_) |
| 103 time_source_->SetTimebaseAndInterval(timebase, interval); | 107 time_source_->SetTimebaseAndInterval(timebase, interval); |
| 104 } | 108 } |
| 105 | 109 |
| 106 void FrameRateController::SetDeadlineAdjustment(base::TimeDelta delta) { | 110 void FrameRateController::SetDeadlineAdjustment(base::TimeDelta delta) { |
| 107 deadline_adjustment_ = delta; | 111 deadline_adjustment_ = delta; |
| 108 } | 112 } |
| 109 | 113 |
| 110 void FrameRateController::OnTimerTick() { | 114 void FrameRateController::OnTimerTick() { |
| 111 TRACE_EVENT0("cc", "FrameRateController::OnTimerTick"); | 115 TRACE_EVENT0("cc", "FrameRateController::OnTimerTick"); |
| 112 DCHECK(active_); | 116 DCHECK(active_); |
| 113 | 117 |
| 114 // Check if we have too many frames in flight. | 118 // Check if we have too many frames in flight. |
| 115 bool throttled = | 119 bool throttled = |
| 116 max_swaps_pending_ && num_frames_pending_ >= max_swaps_pending_; | 120 max_swaps_pending_ && num_frames_pending_ >= max_swaps_pending_; |
| 117 TRACE_COUNTER_ID1("cc", "ThrottledCompositor", task_runner_, throttled); | 121 TRACE_COUNTER_ID1("cc", "ThrottledCompositor", task_runner_, throttled); |
| 118 | 122 |
| 119 if (client_) { | 123 if (client_) { |
| 120 // TODO(brianderson): Use an adaptive parent compositor deadline. | 124 // TODO(brianderson): Use an adaptive parent compositor deadline. |
| 121 base::TimeTicks frame_time = LastTickTime(); | 125 base::TimeTicks frame_time = LastTickTime(); |
| 122 base::TimeTicks deadline = NextTickTime() + deadline_adjustment_; | 126 base::TimeTicks deadline = NextTickTime(); |
| 123 client_->FrameRateControllerTick( | 127 BeginFrameArgs args = |
| 124 throttled, | 128 BeginFrameArgs::Create(frame_time, deadline, interval_); |
| 125 BeginFrameArgs::Create(frame_time, deadline, interval_)); | 129 args.AdjustDeadline(deadline_adjustment_); |
| 130 client_->FrameRateControllerTick(throttled, args); |
| 126 } | 131 } |
| 127 | 132 |
| 128 if (!is_time_source_throttling_ && !throttled) | 133 if (!is_time_source_throttling_ && !throttled) |
| 129 PostManualTick(); | 134 PostManualTick(); |
| 130 } | 135 } |
| 131 | 136 |
| 132 void FrameRateController::PostManualTick() { | 137 void FrameRateController::PostManualTick() { |
| 133 if (active_) { | 138 if (active_) { |
| 134 task_runner_->PostTask(FROM_HERE, | 139 task_runner_->PostTask(FROM_HERE, |
| 135 base::Bind(&FrameRateController::ManualTick, | 140 base::Bind(&FrameRateController::ManualTick, |
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| 164 } | 169 } |
| 165 | 170 |
| 166 base::TimeTicks FrameRateController::LastTickTime() { | 171 base::TimeTicks FrameRateController::LastTickTime() { |
| 167 if (is_time_source_throttling_) | 172 if (is_time_source_throttling_) |
| 168 return time_source_->LastTickTime(); | 173 return time_source_->LastTickTime(); |
| 169 | 174 |
| 170 return base::TimeTicks::Now(); | 175 return base::TimeTicks::Now(); |
| 171 } | 176 } |
| 172 | 177 |
| 173 } // namespace cc | 178 } // namespace cc |
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