[Bug 35418] some drawing operations in Mixcraft 6 are very slow with client-side graphics enabled

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=35418

--- Comment #23 from Alexandre Julliard <julliard at winehq.org> ---
(In reply to Sebastian from comment #21) 
> On the other hand, why use DIB buffering at all for GDI applications? In
> both XP and WINE, nearly every metric in this benchmark is significantly
> faster with direct rendering. Windows 7 is mediocre and can't reach XP or
> WINE performance - I guess Win7 forces DIB buffering regardless of the
> application setting.

It may be faster, but it's not always correct. There are many GDI operations
that cannot be implemented correctly in X11. Switching to client-side rendering
has fixed a lot of graphical glitches, and also improved performance noticeably
in many cases.

Note that X11 rendering isn't always faster. The same benchmark on my machine
(GeForce 320M, nouveau driver) shows X11 being slower by a factor of 2.

> I wonder if it would be possible to force a buffer flush at regular intervals, > maybe at 30Hz, even when DIB buffering is enabled?

We will probably want something like that eventually, but it's not trivial to
do in the existing architecture.

-- 
Do not reply to this email, post in Bugzilla using the
above URL to reply.
You are receiving this mail because:
You are watching all bug changes.