Glamor requires at least big GL 2.1 or GLES2, therefore Xwayland tries
to initialize first GL and then GLES2 if that fails.
It does that all in one single function which makes the code slightly
complicated, move the initialization of big-GL and GLES2 to separate
functions to help with readability of the code.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
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