[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]

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

--- Comment #110 from Alex Henrie <alexhenrie24 at gmail.com> ---
(In reply to Ken Thomases from comment #23)
> This thrashing of the pixel format causes problems with the X11 driver.  The
> X11 driver has to tear down and recreate the drawable each time it changes. 
> This is what causes the flickering and unresponsiveness.

Why does the X11 driver have to destroy and recreate the window just to change
the pixel format? I have been looking through dlls/winex11.drv/opengl.c and as
far as I can tell, set_pixel_format calls set_win_format, which tears down and
recreates the X window but does not actually use the pixel format except to set
the value of a Wine-specific window struct member.

Are you sure that we couldn't insert a shortcut into the X11 driver?

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