Enable is_front_buffer_rendering variable in case of GL_FRONT_AND_BACK
glDrawBuffer(GL_FRONT_AND_BACK) results in to segmentation fault if intel->is_front_buffer_rendering is not enabled with GL_FRONT_AND_BACK. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44153 Reported-by:Yi Sun <yi.sun@intel.com> Signed-off-by:
Anuj Phogat <anuj.phogat@gmail.com> Reviewed-by:
Eric Anholt <eric@anholt.net>