44dd3d7435
Bug: webrtc:11567 Change-Id: I7bfca17f91bf44151148f863480ce77804d53a04 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178805 Commit-Queue: Markus Handell <handellm@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#31681}
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
/*
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* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/desktop_capture/mac/desktop_configuration_monitor.h"
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#include "modules/desktop_capture/mac/desktop_configuration.h"
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#include "rtc_base/logging.h"
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#include "rtc_base/trace_event.h"
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namespace webrtc {
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DesktopConfigurationMonitor::DesktopConfigurationMonitor() {
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CGError err = CGDisplayRegisterReconfigurationCallback(
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DesktopConfigurationMonitor::DisplaysReconfiguredCallback, this);
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if (err != kCGErrorSuccess)
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RTC_LOG(LS_ERROR) << "CGDisplayRegisterReconfigurationCallback " << err;
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MutexLock lock(&desktop_configuration_lock_);
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desktop_configuration_ = MacDesktopConfiguration::GetCurrent(
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MacDesktopConfiguration::TopLeftOrigin);
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}
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DesktopConfigurationMonitor::~DesktopConfigurationMonitor() {
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CGError err = CGDisplayRemoveReconfigurationCallback(
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DesktopConfigurationMonitor::DisplaysReconfiguredCallback, this);
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if (err != kCGErrorSuccess)
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RTC_LOG(LS_ERROR) << "CGDisplayRemoveReconfigurationCallback " << err;
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}
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MacDesktopConfiguration DesktopConfigurationMonitor::desktop_configuration() {
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MutexLock lock(&desktop_configuration_lock_);
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return desktop_configuration_;
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}
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// static
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// This method may be called on any system thread.
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void DesktopConfigurationMonitor::DisplaysReconfiguredCallback(
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CGDirectDisplayID display,
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CGDisplayChangeSummaryFlags flags,
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void* user_parameter) {
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DesktopConfigurationMonitor* monitor =
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reinterpret_cast<DesktopConfigurationMonitor*>(user_parameter);
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monitor->DisplaysReconfigured(display, flags);
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}
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void DesktopConfigurationMonitor::DisplaysReconfigured(
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CGDirectDisplayID display,
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CGDisplayChangeSummaryFlags flags) {
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TRACE_EVENT0("webrtc", "DesktopConfigurationMonitor::DisplaysReconfigured");
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RTC_LOG(LS_INFO) << "DisplaysReconfigured: "
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"DisplayID "
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<< display << "; ChangeSummaryFlags " << flags;
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if (flags & kCGDisplayBeginConfigurationFlag) {
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reconfiguring_displays_.insert(display);
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return;
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}
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reconfiguring_displays_.erase(display);
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if (reconfiguring_displays_.empty()) {
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MutexLock lock(&desktop_configuration_lock_);
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desktop_configuration_ = MacDesktopConfiguration::GetCurrent(
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MacDesktopConfiguration::TopLeftOrigin);
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}
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}
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} // namespace webrtc
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