86ee89f73e
On a 32bit system, this reduces the allocation size of the flag down from 12 bytes to 8, and removes the need for a vtable (the extra 4 bytes are the vtable pointer). The downside is that this change makes the binary layout of the flag, less compatible with RefCountedObject<> based reference counting objects and thus we don't immediately get the benefits of identical COMDAT folding and subsequently there's a slight binary size increase. With wider use, the binary size benefits will come. Bug: none Change-Id: I04129771790a3258d6accaf0ab1258b7a798a55e Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/215681 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Tommi <tommi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33793}
55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
/*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_CONFIGURATION_MONITOR_H_
|
|
#define MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_CONFIGURATION_MONITOR_H_
|
|
|
|
#include <ApplicationServices/ApplicationServices.h>
|
|
|
|
#include <memory>
|
|
#include <set>
|
|
|
|
#include "api/ref_counted_base.h"
|
|
#include "modules/desktop_capture/mac/desktop_configuration.h"
|
|
#include "rtc_base/constructor_magic.h"
|
|
#include "rtc_base/synchronization/mutex.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// The class provides functions to synchronize capturing and display
|
|
// reconfiguring across threads, and the up-to-date MacDesktopConfiguration.
|
|
class DesktopConfigurationMonitor final
|
|
: public rtc::RefCountedNonVirtual<DesktopConfigurationMonitor> {
|
|
public:
|
|
DesktopConfigurationMonitor();
|
|
~DesktopConfigurationMonitor();
|
|
|
|
// Returns the current desktop configuration.
|
|
MacDesktopConfiguration desktop_configuration();
|
|
|
|
private:
|
|
static void DisplaysReconfiguredCallback(CGDirectDisplayID display,
|
|
CGDisplayChangeSummaryFlags flags,
|
|
void* user_parameter);
|
|
void DisplaysReconfigured(CGDirectDisplayID display,
|
|
CGDisplayChangeSummaryFlags flags);
|
|
|
|
Mutex desktop_configuration_lock_;
|
|
MacDesktopConfiguration desktop_configuration_
|
|
RTC_GUARDED_BY(&desktop_configuration_lock_);
|
|
std::set<CGDirectDisplayID> reconfiguring_displays_;
|
|
|
|
RTC_DISALLOW_COPY_AND_ASSIGN(DesktopConfigurationMonitor);
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_CONFIGURATION_MONITOR_H_
|