15d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Copyright 2014 The Chromium Authors. All rights reserved. 25d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// found in the LICENSE file. 45d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 55d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "ui/compositor/compositor_vsync_manager.h" 65d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 75d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)namespace ui { 85d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 95d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)CompositorVSyncManager::CompositorVSyncManager() 105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) : observer_list_(new ObserverListThreadSafe<Observer>()), 115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) authoritative_vsync_interval_(base::TimeDelta::FromSeconds(0)) {} 125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)CompositorVSyncManager::~CompositorVSyncManager() {} 145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void CompositorVSyncManager::SetAuthoritativeVSyncInterval( 165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::TimeDelta interval) { 175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::TimeTicks timebase; 185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) { 195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::AutoLock lock(vsync_parameters_lock_); 205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) timebase = last_timebase_; 215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) authoritative_vsync_interval_ = interval; 225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) last_interval_ = interval; 235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NotifyObservers(timebase, interval); 255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void CompositorVSyncManager::UpdateVSyncParameters(base::TimeTicks timebase, 285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::TimeDelta interval) { 295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) { 305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::AutoLock lock(vsync_parameters_lock_); 315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (authoritative_vsync_interval_ != base::TimeDelta::FromSeconds(0)) 325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) interval = authoritative_vsync_interval_; 335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) last_timebase_ = timebase; 345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) last_interval_ = interval; 355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NotifyObservers(timebase, interval); 375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void CompositorVSyncManager::AddObserver(Observer* observer) { 405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::TimeTicks timebase; 415d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::TimeDelta interval; 425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) { 435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::AutoLock lock(vsync_parameters_lock_); 445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) timebase = last_timebase_; 455d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) interval = last_interval_; 465d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) observer_list_->AddObserver(observer); 485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) observer->OnUpdateVSyncParameters(timebase, interval); 495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void CompositorVSyncManager::RemoveObserver(Observer* observer) { 525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) observer_list_->RemoveObserver(observer); 535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 555d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void CompositorVSyncManager::NotifyObservers(base::TimeTicks timebase, 565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::TimeDelta interval) { 575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) observer_list_->Notify( 585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &CompositorVSyncManager::Observer::OnUpdateVSyncParameters, 595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) timebase, 605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) interval); 615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 625d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} // namespace ui 64