Since MR !33891 EGL only supports a software driver (LLVM).
Routine dri3_x11_connect at
src/egl/drivers/dri2/platform_x11.c fails if DRI3 is not
available. So at that location variable *allow_dri2 should be set.
Looking at the major codition, we see it is not executed
if LIBGL_DRI3_DISABLE is set. In that case the hardware driver
is activated as desired. Previously this was not needed.
Also it is not practical, and not necessary.
I do not understand the major condition, so I did not change it.
This causes some duplicate coding.
Fixes: 323bad6b18 ("egl/x11: split out dri2 init entirely")
Signed-off-by: GKraats <vd.kraats@hccnet.nl>
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34530>
(cherry picked from commit 995dc61bf5)
c196a64471