[Bug 28679] Corrupt sound in many apps

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=28679

--- Comment #12 from Andrew Eikum <aeikum at codeweavers.com> 2011-10-13 09:19:48 CDT ---
(In reply to comment #9)
> > * All Source-based games I had tested so far: HL2, HL2:EP1, HL2:EP2, HL:Source,
> > HL:Lost Coast, Portal, Counter Strike: Source;
> 
> Steam is currently broken for me so I wasn't able to test these.
> 

Spoke too soon. I got Steam working, and the patch fixes the Braid demo (when
installed through Steam; the stand-alone demo remains broken for some probably
unrelated reason. The King's Bounty demo worked neither stand-alone nor through
Steam). It also fixed Lost Coast. So I think it's pretty safe to say that I
expect this to be fixed after today's commit round.

(In reply to comment #11)
> P.S. BTW, I've got a lot of this in logs after recent changes to Wine's sound
> subsystem when playing SC2:
> 
> Not sure if this is related to this bug as the in-game sound seems to be good
> enough: I can't spot any stutter or other type of corruption during general
> gameplay.

By SC2 you mean StarCraft 2? StarCraft 2's sound works in two ways, either
through DirectSound or directly with MMDevAPI, depending on some internal
heuristics (Windows version, or presence of a working mmdevapi.dll, or
something similar). Unfortunately there isn't an easy way to tell which sound
API it's using, as far as I know.

If it's using DirectSound, then I'd expect those messages to be gone, or mostly
gone, after the above patch is applied.

If it's using MMDevAPI directly, then that's a little unexpected. Do you get a
_whole_lot_ of those messages (several per second) or just one every few
minutes or something? The former is worrying, the latter is not. Underruns just
happen sometimes, and if it's not corrupting your sound noticeably then it's no
problem.

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