blob: 7b4ade7739c69ef36e1d2276122111720f3cb135 [file] [log] [blame]
* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include <ApplicationServices/ApplicationServices.h>
#include <memory>
#include <set>
#include "webrtc/modules/desktop_capture/mac/desktop_configuration.h"
#include "webrtc/rtc_base/constructormagic.h"
#include "webrtc/system_wrappers/include/atomic32.h"
namespace webrtc {
class EventWrapper;
// The class provides functions to synchronize capturing and display
// reconfiguring across threads, and the up-to-date MacDesktopConfiguration.
class DesktopConfigurationMonitor {
// Acquires a lock on the current configuration.
void Lock();
// Releases the lock previously acquired.
void Unlock();
// Returns the current desktop configuration. Should only be called when the
// lock has been acquired.
const MacDesktopConfiguration& desktop_configuration() {
return desktop_configuration_;
void AddRef() { ++ref_count_; }
void Release() {
if (--ref_count_ == 0)
delete this;
static void DisplaysReconfiguredCallback(CGDirectDisplayID display,
CGDisplayChangeSummaryFlags flags,
void *user_parameter);
void DisplaysReconfigured(CGDirectDisplayID display,
CGDisplayChangeSummaryFlags flags);
Atomic32 ref_count_;
std::set<CGDirectDisplayID> reconfiguring_displays_;
MacDesktopConfiguration desktop_configuration_;
std::unique_ptr<EventWrapper> display_configuration_capture_event_;
} // namespace webrtc