43 lines
1.6 KiB
Diff
43 lines
1.6 KiB
Diff
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diff -up firefox-95.0.2/widget/gtk/nsWindow.cpp.1744896 firefox-95.0.2/widget/gtk/nsWindow.cpp
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--- firefox-95.0.2/widget/gtk/nsWindow.cpp.1744896 2021-12-23 11:54:31.522539340 +0100
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+++ firefox-95.0.2/widget/gtk/nsWindow.cpp 2021-12-23 11:55:56.070270174 +0100
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@@ -5765,6 +5765,17 @@ nsresult nsWindow::Create(nsIWidget* aPa
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}
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}
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#endif
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+#ifdef MOZ_WAYLAND
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+ // Initialize the window specific VsyncSource early in order to avoid races
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+ // with BrowserParent::UpdateVsyncParentVsyncSource().
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+ // Only use for toplevel windows for now, see bug 1619246.
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+ if (GdkIsWaylandDisplay() &&
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+ StaticPrefs::widget_wayland_vsync_enabled_AtStartup() &&
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+ mWindowType == eWindowType_toplevel) {
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+ mWaylandVsyncSource = new WaylandVsyncSource();
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+ MOZ_RELEASE_ASSERT(mWaylandVsyncSource);
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+ }
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+#endif
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// We create input contexts for all containers, except for
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// toplevel popup windows
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@@ -6077,19 +6088,12 @@ void nsWindow::ResumeCompositorFromCompo
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void nsWindow::WaylandStartVsync() {
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#ifdef MOZ_WAYLAND
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- // only use for toplevel windows for now - see bug 1619246
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- if (!GdkIsWaylandDisplay() ||
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- !StaticPrefs::widget_wayland_vsync_enabled_AtStartup() ||
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- mWindowType != eWindowType_toplevel) {
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+ if (!mWaylandVsyncSource) {
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return;
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}
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LOG("nsWindow::WaylandStartVsync() [%p]\n", (void*)this);
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- if (!mWaylandVsyncSource) {
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- mWaylandVsyncSource = new WaylandVsyncSource();
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- }
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-
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WaylandVsyncSource::WaylandDisplay& display =
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static_cast<WaylandVsyncSource::WaylandDisplay&>(
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mWaylandVsyncSource->GetGlobalDisplay());
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