[Bug 35718] Multiple games have extreme flicker, stutter, slowdown (Path of Exile, Roller Coaster Tycoon, Counter Strike: Global Offensive, Warframe, Crysis, Anno 1602, Splinter Cell: Blacklist)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=35718

--- Comment #32 from Ken Thomases <ken at codeweavers.com> ---
Created attachment 47937
  --> http://bugs.winehq.org/attachment.cgi?id=47937
Another try at deferring recreation of the drawable

Thanks, everybody, for the testing with attachment 47883.  The fact that it
helped with some games is useful to confirm my theory of the problem.  I don't
think it's the proper solution though.

I've attached a revamped version of attachment 47808 (with the diagnostics from
attachment 47866 included, too).  Since that didn't fix the problem for most of
you, this probably still won't fix the problem.  But I've added more debug
tracing to hopefully help explain why.

So, please apply this patch on top of current git (wine-1.7.15-133-g62f7ba2)
and collect another +tid,+d3d,+wgl log.  Again, exit the game as soon as you
see the problem (or are sure it's gone) to keep the log short.

I don't expect this to help with the CS:GO problem, so no need to retest that.

Thanks!

For those interested, the theory behind this patch is to decouple the thrashing
of the pixel format from the destruction and recreation of the drawable in the
X11 driver (as described in comment 23).  When the pixel format is changed, the
X11 driver now makes note of that but doesn't recreate its drawable
immediately.  Instead, it waits until the drawable is truly needed.  At that
time, if the pixel format has been changed back so that it's compatible with
the drawable again, then the drawable is just kept as-is.

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