66 lines
3.2 KiB
Diff
66 lines
3.2 KiB
Diff
From: Dan Minor <dminor@mozilla.com>
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Date: Tue, 31 Jul 2018 13:32:00 -0400
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Subject: Bug 1376873 - OS X desktop capture fixes; r=pehrsons
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Differential Revision: https://phabricator.services.mozilla.com/D7464
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Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/02c038eca65c1218b56fdf8937fdeab3d8767fe6
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---
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modules/desktop_capture/mac/screen_capturer_mac.h | 7 +++++++
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modules/desktop_capture/mac/screen_capturer_mac.mm | 4 +++-
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modules/desktop_capture/mouse_cursor_monitor_mac.mm | 3 ++-
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3 files changed, 12 insertions(+), 2 deletions(-)
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diff --git a/modules/desktop_capture/mac/screen_capturer_mac.h b/modules/desktop_capture/mac/screen_capturer_mac.h
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index d9a5966efa..7be05cc639 100644
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--- a/modules/desktop_capture/mac/screen_capturer_mac.h
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+++ b/modules/desktop_capture/mac/screen_capturer_mac.h
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@@ -114,6 +114,13 @@ class ScreenCapturerMac final : public DesktopCapturer {
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// Start, CaptureFrame and destructor have to called in the same thread.
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SequenceChecker thread_checker_;
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+
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+ // Used to force CaptureFrame to update it's screen configuration
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+ // and reregister event handlers. This ensure that this
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+ // occurs on the ScreenCapture thread. Read and written from
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+ // both the VideoCapture thread and ScreenCapture thread.
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+ // Protected by desktop_config_monitor_.
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+ bool update_screen_configuration_ = false;
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};
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} // namespace webrtc
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diff --git a/modules/desktop_capture/mac/screen_capturer_mac.mm b/modules/desktop_capture/mac/screen_capturer_mac.mm
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index 2bb5e13378..21a9c1ca4a 100644
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--- a/modules/desktop_capture/mac/screen_capturer_mac.mm
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+++ b/modules/desktop_capture/mac/screen_capturer_mac.mm
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@@ -189,6 +189,7 @@ void ScreenCapturerMac::Start(Callback* callback) {
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current_display_);
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callback_ = callback;
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+ update_screen_configuration_ = false;
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// Start and operate CGDisplayStream handler all from capture thread.
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if (!RegisterRefreshAndMoveHandlers()) {
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RTC_LOG(LS_ERROR) << "Failed to register refresh and move handlers.";
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@@ -210,7 +211,8 @@ void ScreenCapturerMac::CaptureFrame() {
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MacDesktopConfiguration new_config =
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desktop_config_monitor_->desktop_configuration();
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- if (!desktop_config_.Equals(new_config)) {
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+ if (update_screen_configuration_ || !desktop_config_.Equals(new_config)) {
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+ update_screen_configuration_ = false;
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desktop_config_ = new_config;
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// If the display configuraiton has changed then refresh capturer data
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// structures. Occasionally, the refresh and move handlers are lost when
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diff --git a/modules/desktop_capture/mouse_cursor_monitor_mac.mm b/modules/desktop_capture/mouse_cursor_monitor_mac.mm
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index 3ab6fdc1f8..e86d9210cf 100644
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--- a/modules/desktop_capture/mouse_cursor_monitor_mac.mm
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+++ b/modules/desktop_capture/mouse_cursor_monitor_mac.mm
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@@ -133,7 +133,8 @@ void MouseCursorMonitorMac::CaptureImage(float scale) {
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NSSize nssize = [nsimage size]; // DIP size
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// No need to caputre cursor image if it's unchanged since last capture.
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- if ([[nsimage TIFFRepresentation] isEqual:[last_cursor_ TIFFRepresentation]])
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+ if (last_cursor_ &&
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+ [[nsimage TIFFRepresentation] isEqual:[last_cursor_ TIFFRepresentation]])
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return;
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last_cursor_ = nsimage;
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