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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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/begin_frame_source.h" | 5 #include "cc/scheduler/begin_frame_source.h" |
6 | 6 |
7 #include "base/auto_reset.h" | 7 #include "base/auto_reset.h" |
8 #include "base/debug/trace_event.h" | 8 #include "base/debug/trace_event.h" |
9 #include "base/debug/trace_event_argument.h" | 9 #include "base/debug/trace_event_argument.h" |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
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174 weak_factory_.GetWeakPtr())); | 174 weak_factory_.GetWeakPtr())); |
175 } | 175 } |
176 | 176 |
177 void BackToBackBeginFrameSource::BeginFrame() { | 177 void BackToBackBeginFrameSource::BeginFrame() { |
178 send_begin_frame_posted_ = false; | 178 send_begin_frame_posted_ = false; |
179 | 179 |
180 if (!needs_begin_frames_) | 180 if (!needs_begin_frames_) |
181 return; | 181 return; |
182 | 182 |
183 base::TimeTicks now = Now(); | 183 base::TimeTicks now = Now(); |
184 BeginFrameArgs args = | 184 BeginFrameArgs args = BeginFrameArgs::Create( |
185 BeginFrameArgs::Create(now, | 185 now, now + BeginFrameArgs::DefaultInterval(), |
186 now + BeginFrameArgs::DefaultInterval(), | 186 BeginFrameArgs::DefaultInterval(), BeginFrameArgs::NORMAL); |
187 BeginFrameArgs::DefaultInterval()); | |
188 CallOnBeginFrame(args); | 187 CallOnBeginFrame(args); |
189 } | 188 } |
190 | 189 |
191 // BeginFrameSource support | 190 // BeginFrameSource support |
192 | 191 |
193 void BackToBackBeginFrameSource::DidFinishFrame(size_t remaining_frames) { | 192 void BackToBackBeginFrameSource::DidFinishFrame(size_t remaining_frames) { |
194 if (remaining_frames == 0) { | 193 if (remaining_frames == 0) { |
195 OnNeedsBeginFramesChange(NeedsBeginFrames()); | 194 OnNeedsBeginFramesChange(NeedsBeginFrames()); |
196 } | 195 } |
197 } | 196 } |
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236 void SyntheticBeginFrameSource::OnUpdateVSyncParameters( | 235 void SyntheticBeginFrameSource::OnUpdateVSyncParameters( |
237 base::TimeTicks new_vsync_timebase, | 236 base::TimeTicks new_vsync_timebase, |
238 base::TimeDelta new_vsync_interval) { | 237 base::TimeDelta new_vsync_interval) { |
239 time_source_->SetTimebaseAndInterval(new_vsync_timebase, new_vsync_interval); | 238 time_source_->SetTimebaseAndInterval(new_vsync_timebase, new_vsync_interval); |
240 } | 239 } |
241 | 240 |
242 BeginFrameArgs SyntheticBeginFrameSource::CreateBeginFrameArgs( | 241 BeginFrameArgs SyntheticBeginFrameSource::CreateBeginFrameArgs( |
243 base::TimeTicks frame_time, | 242 base::TimeTicks frame_time, |
244 BeginFrameArgs::BeginFrameArgsType type) { | 243 BeginFrameArgs::BeginFrameArgsType type) { |
245 base::TimeTicks deadline = time_source_->NextTickTime(); | 244 base::TimeTicks deadline = time_source_->NextTickTime(); |
246 return BeginFrameArgs::CreateTyped( | 245 return BeginFrameArgs::Create(frame_time, deadline, time_source_->Interval(), |
247 frame_time, deadline, time_source_->Interval(), type); | 246 type); |
248 } | 247 } |
249 | 248 |
250 // TimeSourceClient support | 249 // TimeSourceClient support |
251 void SyntheticBeginFrameSource::OnTimerTick() { | 250 void SyntheticBeginFrameSource::OnTimerTick() { |
252 CallOnBeginFrame(CreateBeginFrameArgs(time_source_->LastTickTime(), | 251 CallOnBeginFrame(CreateBeginFrameArgs(time_source_->LastTickTime(), |
253 BeginFrameArgs::NORMAL)); | 252 BeginFrameArgs::NORMAL)); |
254 } | 253 } |
255 | 254 |
256 // BeginFrameSourceMixIn support | 255 // BeginFrameSourceMixIn support |
257 void SyntheticBeginFrameSource::OnNeedsBeginFramesChange( | 256 void SyntheticBeginFrameSource::OnNeedsBeginFramesChange( |
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483 if (!observer_->LastUsedBeginFrameArgs().IsValid()) | 482 if (!observer_->LastUsedBeginFrameArgs().IsValid()) |
484 return true; | 483 return true; |
485 | 484 |
486 // Only allow new args have a *strictly bigger* frame_time value and statisfy | 485 // Only allow new args have a *strictly bigger* frame_time value and statisfy |
487 // minimum interval requirement. | 486 // minimum interval requirement. |
488 return (args.frame_time >= | 487 return (args.frame_time >= |
489 observer_->LastUsedBeginFrameArgs().frame_time + minimum_interval_); | 488 observer_->LastUsedBeginFrameArgs().frame_time + minimum_interval_); |
490 } | 489 } |
491 | 490 |
492 } // namespace cc | 491 } // namespace cc |
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