DisplayRefreshMonitorManager.cpp [plain text]
#include "config.h"
#include "DisplayRefreshMonitorManager.h"
#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
#include "DisplayRefreshMonitor.h"
#include "DisplayRefreshMonitorClient.h"
#include <wtf/CurrentTime.h>
namespace WebCore {
DisplayRefreshMonitorManager::~DisplayRefreshMonitorManager()
{
}
DisplayRefreshMonitorManager& DisplayRefreshMonitorManager::sharedManager()
{
static NeverDestroyed<DisplayRefreshMonitorManager> manager;
return manager.get();
}
DisplayRefreshMonitor* DisplayRefreshMonitorManager::createMonitorForClient(DisplayRefreshMonitorClient& client)
{
PlatformDisplayID clientDisplayID = client.displayID();
for (const RefPtr<DisplayRefreshMonitor>& monitor : m_monitors) {
if (monitor->displayID() != clientDisplayID)
continue;
monitor->addClient(client);
return monitor.get();
}
RefPtr<DisplayRefreshMonitor> monitor = DisplayRefreshMonitor::create(client);
if (!monitor)
return nullptr;
monitor->addClient(client);
DisplayRefreshMonitor* result = monitor.get();
m_monitors.append(monitor.release());
return result;
}
void DisplayRefreshMonitorManager::registerClient(DisplayRefreshMonitorClient& client)
{
if (!client.hasDisplayID())
return;
createMonitorForClient(client);
}
void DisplayRefreshMonitorManager::unregisterClient(DisplayRefreshMonitorClient& client)
{
if (!client.hasDisplayID())
return;
PlatformDisplayID clientDisplayID = client.displayID();
for (size_t i = 0; i < m_monitors.size(); ++i) {
RefPtr<DisplayRefreshMonitor> monitor = m_monitors[i];
if (monitor->displayID() != clientDisplayID)
continue;
if (monitor->removeClient(client)) {
if (!monitor->hasClients())
m_monitors.remove(i);
}
return;
}
}
bool DisplayRefreshMonitorManager::scheduleAnimation(DisplayRefreshMonitorClient& client)
{
if (!client.hasDisplayID())
return false;
DisplayRefreshMonitor* monitor = createMonitorForClient(client);
if (!monitor)
return false;
client.setIsScheduled(true);
return monitor->requestRefreshCallback();
}
void DisplayRefreshMonitorManager::displayDidRefresh(DisplayRefreshMonitor& monitor)
{
if (!monitor.shouldBeTerminated())
return;
size_t monitorIndex = m_monitors.find(&monitor);
ASSERT(monitorIndex != notFound);
m_monitors.remove(monitorIndex);
}
void DisplayRefreshMonitorManager::windowScreenDidChange(PlatformDisplayID displayID, DisplayRefreshMonitorClient& client)
{
if (client.hasDisplayID() && client.displayID() == displayID)
return;
unregisterClient(client);
client.setDisplayID(displayID);
registerClient(client);
if (client.isScheduled())
scheduleAnimation(client);
}
}
#endif // USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)