[Bug 21726] Explicit access to and creation of front/back buffers for DirectDraw interfaces prior to version 7 needed

wine-bugs at winehq.org wine-bugs at winehq.org
Tue Feb 16 14:36:24 CST 2010


--- Comment #11 from Michael <mikademus at gmail.com>  2010-02-16 14:36:24 ---
(In reply to comment #10)
> (In reply to comment #9)
> > I know of at least two games: Warhammer: Dark Omen (bug 9190), and Combat
> > Pillows (bug 9008). It is possible that Fate Axis (recently closed bug 8232,
> > game still not running, though) depends on this too.
> Why do you think that the problems in that games are caused by this?
> Are there bug reports for problems in that games?

Yes, both games have bug reports where the dumps indicate they need explicit
back and/or front buffers. 

I remember coding games myself for DX5 and DX6 many years ago now, and I made
heavy use of explicit access to front and back buffers. In fact, for DX games <
v7 it was recommended practice for performance to create multiple back buffers
and fill them progressively to use CPU cycles efficiently. DX3 games often
blitted directly to the front buffer.

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