From dd0eb4d9d89c3b796044c7fac8397c8713c5cdeb Mon Sep 17 00:00:00 2001
From: Martin Stransky <stransky@redhat.com>
Date: Fri, 25 May 2018 12:50:35 +0200
Subject: Enable Wayland backend

---
 mozilla-1462622.patch | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 mozilla-1462622.patch

(limited to 'mozilla-1462622.patch')

diff --git a/mozilla-1462622.patch b/mozilla-1462622.patch
new file mode 100644
index 0000000..a1903dc
--- /dev/null
+++ b/mozilla-1462622.patch
@@ -0,0 +1,36 @@
+
+# HG changeset patch
+# User Martin Stransky <stransky@redhat.com>
+# Date 1526647470 -7200
+# Node ID d41fee41e38400fab5da0689c1f49e30f80e2d1b
+# Parent  d2b91476bebc48f9e89f9d3e6c7b33decb2ae941
+Bug 1462622 - [Gtk/Linux] Don't use GLXVsyncSource() on non-X11 displays, r=lsalzman
+
+MozReview-Commit-ID: BBtnNLWqSiq
+
+diff --git a/gfx/thebes/gfxPlatformGtk.cpp b/gfx/thebes/gfxPlatformGtk.cpp
+--- a/gfx/thebes/gfxPlatformGtk.cpp
++++ b/gfx/thebes/gfxPlatformGtk.cpp
+@@ -736,18 +736,20 @@ private:
+ };
+ 
+ already_AddRefed<gfx::VsyncSource>
+ gfxPlatformGtk::CreateHardwareVsyncSource()
+ {
+   // Only use GLX vsync when the OpenGL compositor is being used.
+   // The extra cost of initializing a GLX context while blocking the main
+   // thread is not worth it when using basic composition.
++  // Also don't use it on non-X11 displays.
+   if (gfxConfig::IsEnabled(Feature::HW_COMPOSITING)) {
+-    if (gl::sGLXLibrary.SupportsVideoSync()) {
++    if (GDK_IS_X11_DISPLAY(gdk_display_get_default()) &&
++        gl::sGLXLibrary.SupportsVideoSync()) {
+       RefPtr<VsyncSource> vsyncSource = new GLXVsyncSource();
+       VsyncSource::Display& display = vsyncSource->GetGlobalDisplay();
+       if (!static_cast<GLXVsyncSource::GLXDisplay&>(display).Setup()) {
+         NS_WARNING("Failed to setup GLContext, falling back to software vsync.");
+         return gfxPlatform::CreateHardwareVsyncSource();
+       }
+       return vsyncSource.forget();
+     }
+
-- 
cgit