tree d4d9ac09fc35918bc51051993234ee96c2e26483
parent 9f7ed473fc6d416ee0a35f3bc8a76e89afa476cf
author Conn O'Griofa <connogriofa@gmail.com> 1567784686 -0700
committer Conn O'Griofa <connogriofa@gmail.com> 1567784686 -0700

KMSDRM_GLES_SwapWindow: fix non-vsync case
If KMSDRM_drmModeSetCrtc is called when the swap interval is
set to 0, the driver behaves as though vertical sync is engaged by
limiting framerate to the refresh rate, but performance is much worse
than with vertical sync enabled.

Resolve this issue by ensuring that the Crtc is only set up once,
and KMSDRM_drmModePageFlip is called, albeit without any followup
queueing or waiting for flips.