150 lines
4.8 KiB
C++
150 lines
4.8 KiB
C++
/*
|
|
* Copyright (C) 2019-2020 Apple Inc. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "RenderingUpdateScheduler.h"
|
|
|
|
#include "Chrome.h"
|
|
#include "ChromeClient.h"
|
|
#include "DisplayRefreshMonitorManager.h"
|
|
#include "Logging.h"
|
|
#include "Page.h"
|
|
#include <wtf/SystemTracing.h>
|
|
#include <wtf/text/TextStream.h>
|
|
|
|
namespace WebCore {
|
|
|
|
RenderingUpdateScheduler::RenderingUpdateScheduler(Page& page)
|
|
: m_page(page)
|
|
{
|
|
windowScreenDidChange(page.chrome().displayID());
|
|
}
|
|
|
|
bool RenderingUpdateScheduler::scheduleAnimation()
|
|
{
|
|
if (m_useTimer)
|
|
return false;
|
|
|
|
return DisplayRefreshMonitorManager::sharedManager().scheduleAnimation(*this);
|
|
}
|
|
|
|
void RenderingUpdateScheduler::adjustRenderingUpdateFrequency()
|
|
{
|
|
auto renderingUpdateFramesPerSecond = m_page.preferredRenderingUpdateFramesPerSecond();
|
|
if (renderingUpdateFramesPerSecond) {
|
|
setPreferredFramesPerSecond(renderingUpdateFramesPerSecond.value());
|
|
m_useTimer = false;
|
|
} else
|
|
m_useTimer = true;
|
|
|
|
if (isScheduled()) {
|
|
clearScheduled();
|
|
scheduleRenderingUpdate();
|
|
}
|
|
}
|
|
|
|
void RenderingUpdateScheduler::scheduleRenderingUpdate()
|
|
{
|
|
LOG_WITH_STREAM(EventLoop, stream << "RenderingUpdateScheduler for page " << &m_page << " scheduleTimedRenderingUpdate() - already scheduled " << isScheduled() << " page visible " << m_page.isVisible());
|
|
|
|
if (isScheduled())
|
|
return;
|
|
|
|
// Optimize the case when an invisible page wants just to schedule layer flush.
|
|
if (!m_page.isVisible()) {
|
|
triggerRenderingUpdate();
|
|
return;
|
|
}
|
|
|
|
tracePoint(ScheduleRenderingUpdate);
|
|
|
|
if (!scheduleAnimation()) {
|
|
LOG_WITH_STREAM(DisplayLink, stream << "RenderingUpdateScheduler::scheduleRenderingUpdate for interval " << m_page.preferredRenderingUpdateInterval() << " falling back to timer");
|
|
startTimer(m_page.preferredRenderingUpdateInterval());
|
|
}
|
|
}
|
|
|
|
bool RenderingUpdateScheduler::isScheduled() const
|
|
{
|
|
ASSERT_IMPLIES(m_refreshTimer.get(), m_scheduled);
|
|
return m_scheduled;
|
|
}
|
|
|
|
void RenderingUpdateScheduler::startTimer(Seconds delay)
|
|
{
|
|
LOG_WITH_STREAM(EventLoop, stream << "RenderingUpdateScheduler for page " << &m_page << " startTimer(" << delay << ")");
|
|
|
|
ASSERT(!isScheduled());
|
|
m_refreshTimer = makeUnique<Timer>(*this, &RenderingUpdateScheduler::displayRefreshFired);
|
|
m_refreshTimer->startOneShot(delay);
|
|
m_scheduled = true;
|
|
}
|
|
|
|
void RenderingUpdateScheduler::clearScheduled()
|
|
{
|
|
m_scheduled = false;
|
|
m_refreshTimer = nullptr;
|
|
}
|
|
|
|
DisplayRefreshMonitorFactory* RenderingUpdateScheduler::displayRefreshMonitorFactory() const
|
|
{
|
|
return m_page.chrome().client().displayRefreshMonitorFactory();
|
|
}
|
|
|
|
void RenderingUpdateScheduler::windowScreenDidChange(PlatformDisplayID displayID)
|
|
{
|
|
adjustRenderingUpdateFrequency();
|
|
DisplayRefreshMonitorManager::sharedManager().windowScreenDidChange(displayID, *this);
|
|
}
|
|
|
|
void RenderingUpdateScheduler::displayRefreshFired()
|
|
{
|
|
LOG_WITH_STREAM(EventLoop, stream << "RenderingUpdateScheduler for page " << &m_page << " displayRefreshFired()");
|
|
|
|
tracePoint(TriggerRenderingUpdate);
|
|
|
|
clearScheduled();
|
|
|
|
if (m_page.chrome().client().shouldTriggerRenderingUpdate(m_rescheduledRenderingUpdateCount)) {
|
|
triggerRenderingUpdate();
|
|
m_rescheduledRenderingUpdateCount = 0;
|
|
} else {
|
|
scheduleRenderingUpdate();
|
|
++m_rescheduledRenderingUpdateCount;
|
|
}
|
|
}
|
|
|
|
void RenderingUpdateScheduler::triggerRenderingUpdateForTesting()
|
|
{
|
|
triggerRenderingUpdate();
|
|
}
|
|
|
|
void RenderingUpdateScheduler::triggerRenderingUpdate()
|
|
{
|
|
m_page.chrome().client().triggerRenderingUpdate();
|
|
}
|
|
|
|
}
|