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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/debug/trace_event.h" | 7 #include "base/debug/trace_event.h" |
| 8 #include "base/logging.h" | 8 #include "base/logging.h" |
| 9 #include "cc/base/thread.h" | 9 #include "cc/base/thread.h" |
| 10 #include "cc/scheduler/delay_based_time_source.h" | 10 #include "cc/scheduler/delay_based_time_source.h" |
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| 32 }; | 32 }; |
| 33 | 33 |
| 34 FrameRateController::FrameRateController(scoped_refptr<TimeSource> timer) | 34 FrameRateController::FrameRateController(scoped_refptr<TimeSource> timer) |
| 35 : client_(NULL), | 35 : client_(NULL), |
| 36 num_frames_pending_(0), | 36 num_frames_pending_(0), |
| 37 max_frames_pending_(0), | 37 max_frames_pending_(0), |
| 38 time_source_(timer), | 38 time_source_(timer), |
| 39 active_(false), | 39 active_(false), |
| 40 swap_buffers_complete_supported_(true), | 40 swap_buffers_complete_supported_(true), |
| 41 is_time_source_throttling_(true), | 41 is_time_source_throttling_(true), |
| 42 thread_(NULL), | 42 weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)), |
| 43 weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) { | 43 thread_(NULL) { |
| 44 time_source_client_adapter_ = | 44 time_source_client_adapter_ = |
| 45 FrameRateControllerTimeSourceAdapter::Create(this); | 45 FrameRateControllerTimeSourceAdapter::Create(this); |
| 46 time_source_->SetClient(time_source_client_adapter_.get()); | 46 time_source_->SetClient(time_source_client_adapter_.get()); |
| 47 } | 47 } |
| 48 | 48 |
| 49 FrameRateController::FrameRateController(Thread* thread) | 49 FrameRateController::FrameRateController(Thread* thread) |
| 50 : client_(NULL), | 50 : client_(NULL), |
| 51 num_frames_pending_(0), | 51 num_frames_pending_(0), |
| 52 max_frames_pending_(0), | 52 max_frames_pending_(0), |
| 53 active_(false), | 53 active_(false), |
| 54 swap_buffers_complete_supported_(true), | 54 swap_buffers_complete_supported_(true), |
| 55 is_time_source_throttling_(false), | 55 is_time_source_throttling_(false), |
| 56 thread_(thread), | 56 weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)), |
| 57 weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {} | 57 thread_(thread) {} |
| 58 | 58 |
| 59 FrameRateController::~FrameRateController() { | 59 FrameRateController::~FrameRateController() { |
| 60 if (is_time_source_throttling_) | 60 if (is_time_source_throttling_) |
| 61 time_source_->SetActive(false); | 61 time_source_->SetActive(false); |
| 62 } | 62 } |
| 63 | 63 |
| 64 void FrameRateController::SetActive(bool active) { | 64 void FrameRateController::SetActive(bool active) { |
| 65 if (active_ == active) | 65 if (active_ == active) |
| 66 return; | 66 return; |
| 67 TRACE_EVENT1("cc", "FrameRateController::SetActive", "active", active); | 67 TRACE_EVENT1("cc", "FrameRateController::SetActive", "active", active); |
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| 144 } | 144 } |
| 145 | 145 |
| 146 base::TimeTicks FrameRateController::LastTickTime() { | 146 base::TimeTicks FrameRateController::LastTickTime() { |
| 147 if (is_time_source_throttling_) | 147 if (is_time_source_throttling_) |
| 148 return time_source_->LastTickTime(); | 148 return time_source_->LastTickTime(); |
| 149 | 149 |
| 150 return base::TimeTicks::Now(); | 150 return base::TimeTicks::Now(); |
| 151 } | 151 } |
| 152 | 152 |
| 153 } // namespace cc | 153 } // namespace cc |
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