void DisplayRefreshMonitorMac::displayLinkFired(double nowSeconds, double outputTimeSeconds)
{
LockHolder lock(mutex());
if (!isPreviousFrameDone())
return;
setIsPreviousFrameDone(false);
double webKitMonotonicNow = monotonicallyIncreasingTime();
double timeUntilOutput = outputTimeSeconds - nowSeconds;
// FIXME: Should this be using webKitMonotonicNow?
setMonotonicAnimationStartTime(webKitMonotonicNow + timeUntilOutput);
callOnMainThread(handleDisplayRefreshedNotificationOnMainThread, this);
}
void ThreadedCompositor::DisplayRefreshMonitor::displayRefreshCallback()
{
bool shouldHandleDisplayRefreshNotification = false;
{
LockHolder locker(mutex());
shouldHandleDisplayRefreshNotification = isScheduled() && isPreviousFrameDone();
if (shouldHandleDisplayRefreshNotification) {
setIsPreviousFrameDone(false);
setMonotonicAnimationStartTime(monotonicallyIncreasingTime());
}
}
if (shouldHandleDisplayRefreshNotification)
DisplayRefreshMonitor::handleDisplayRefreshedNotificationOnMainThread(this);
if (m_compositor) {
if (m_compositor->m_clientRendersNextFrame.compareExchangeStrong(true, false))
m_compositor->m_scene->renderNextFrame();
if (m_compositor->m_coordinateUpdateCompletionWithClient.compareExchangeStrong(true, false))
m_compositor->m_compositingRunLoop->updateCompleted();
}
}