OLD | NEW |
(Empty) | |
| 1 // Copyright 2017 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 "cc/surfaces/primary_begin_frame_source.h" |
| 6 |
| 7 namespace cc { |
| 8 |
| 9 PrimaryBeginFrameSource::PrimaryBeginFrameSource() |
| 10 : begin_frame_source_(this) {} |
| 11 |
| 12 PrimaryBeginFrameSource::~PrimaryBeginFrameSource() = default; |
| 13 |
| 14 void PrimaryBeginFrameSource::OnBeginFrameSourceAdded( |
| 15 BeginFrameSource* begin_frame_source) { |
| 16 sources_.insert(begin_frame_source); |
| 17 |
| 18 if (current_begin_frame_source_) |
| 19 return; |
| 20 |
| 21 current_begin_frame_source_ = begin_frame_source; |
| 22 if (needs_begin_frames_ && current_begin_frame_source_) |
| 23 current_begin_frame_source_->AddObserver(this); |
| 24 } |
| 25 |
| 26 void PrimaryBeginFrameSource::OnBeginFrameSourceRemoved( |
| 27 BeginFrameSource* begin_frame_source) { |
| 28 sources_.erase(begin_frame_source); |
| 29 if (current_begin_frame_source_ != begin_frame_source) |
| 30 return; |
| 31 |
| 32 if (needs_begin_frames_) |
| 33 current_begin_frame_source_->RemoveObserver(this); |
| 34 |
| 35 if (!sources_.empty()) |
| 36 current_begin_frame_source_ = *sources_.begin(); |
| 37 else |
| 38 current_begin_frame_source_ = nullptr; |
| 39 |
| 40 if (needs_begin_frames_ && current_begin_frame_source_) |
| 41 current_begin_frame_source_->AddObserver(this); |
| 42 } |
| 43 |
| 44 void PrimaryBeginFrameSource::OnBeginFrame(const BeginFrameArgs& args) { |
| 45 begin_frame_source_.OnBeginFrame(args); |
| 46 last_begin_frame_args_ = args; |
| 47 } |
| 48 |
| 49 const BeginFrameArgs& PrimaryBeginFrameSource::LastUsedBeginFrameArgs() const { |
| 50 return last_begin_frame_args_; |
| 51 } |
| 52 |
| 53 void PrimaryBeginFrameSource::OnBeginFrameSourcePausedChanged(bool paused) {} |
| 54 |
| 55 void PrimaryBeginFrameSource::DidFinishFrame(BeginFrameObserver* obs, |
| 56 const BeginFrameAck& ack) { |
| 57 begin_frame_source_.DidFinishFrame(obs, ack); |
| 58 } |
| 59 |
| 60 void PrimaryBeginFrameSource::AddObserver(BeginFrameObserver* obs) { |
| 61 begin_frame_source_.AddObserver(obs); |
| 62 } |
| 63 |
| 64 void PrimaryBeginFrameSource::RemoveObserver(BeginFrameObserver* obs) { |
| 65 begin_frame_source_.RemoveObserver(obs); |
| 66 } |
| 67 |
| 68 bool PrimaryBeginFrameSource::IsThrottled() const { |
| 69 return begin_frame_source_.IsThrottled(); |
| 70 } |
| 71 |
| 72 void PrimaryBeginFrameSource::OnNeedsBeginFrames(bool needs_begin_frames) { |
| 73 if (needs_begin_frames_ == needs_begin_frames) |
| 74 return; |
| 75 |
| 76 needs_begin_frames_ = needs_begin_frames; |
| 77 |
| 78 if (!current_begin_frame_source_) |
| 79 return; |
| 80 |
| 81 if (needs_begin_frames_) |
| 82 current_begin_frame_source_->AddObserver(this); |
| 83 else |
| 84 current_begin_frame_source_->RemoveObserver(this); |
| 85 } |
| 86 |
| 87 } // namespace cc |
OLD | NEW |