From 3b98103b72b864d590d644a8ee237f63ffe373bd Mon Sep 17 00:00:00 2001
From: Emmanuele Bassi <ebassi@gnome.org>
Date: Mon, 2 Mar 2015 16:08:18 +0000
Subject: [PATCH] gdk/stage: Warn if CoglContext is not available

Instead of crashing inside Cogl later on.

https://bugzilla.gnome.org/show_bug.cgi?id=745229
---
 clutter/gdk/clutter-stage-gdk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/clutter/gdk/clutter-stage-gdk.c b/clutter/gdk/clutter-stage-gdk.c
index 94b49bb33..e855a985c 100644
--- a/clutter/gdk/clutter-stage-gdk.c
+++ b/clutter/gdk/clutter-stage-gdk.c
@@ -185,6 +185,12 @@ clutter_stage_gdk_realize (ClutterStageWindow *stage_window)
   gboolean use_alpha;
   gfloat   width, height;
 
+  if (backend->cogl_context == NULL)
+    {
+      g_warning ("Missing Cogl context: was Clutter correctly initialized?");
+      return FALSE;
+    }
+
   if (stage_gdk->foreign_window)
     {
       width = gdk_window_get_width (stage_gdk->window);