Matthew Waters 11bb4454a8 glvideomixer: fix race retrieving the GL context from the display ... _get_gl_context() can be called concurrently from either propose_allocation() or decide_allocation(). If it so happens that this happens at the same time, the check for whether we already had a GL context was outside the lock. Inside the lock and loop, the first thing that happens is that we unref the current GL context (if valid) as if there was a conflict adding it to the display. If the timing was unlucky, subsequent use of the GL context would be referencing an already unreffed GL context object resulting in a critical: g_object_ref: assertion 'object->ref_count > 0' failed https://bugzilla.gnome.org/show_bug.cgi?id=766703		2016-05-25 18:28:20 +10:00
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gl	glvideomixer: fix race retrieving the GL context from the display	2016-05-25 18:28:20 +10:00