[Bug 28723] Sound stutter in Rage when emulated windows version is set to "Windows 7" (XAudio2 -> mmdevapi sound output path)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=28723

--- Comment #89 from Jörg Höhle <hoehle at users.sourceforge.net> 2011-12-15 16:32:38 CST ---
Created attachment 37981
  --> http://bugs.winehq.org/attachment.cgi?id=37981
Compute mmdevapi duration & period limits

This is the 0000 patch to compute period and duration limits like native does.
I'm going to submit this tomorrow (adding OSS and MacOS).  It will end the
if(!period) issue.  It requires a rebase & editing of the remaining 3 patches.

Alexey, I'd be pleased if you could grab all my mmdevapi .exe on testbot and
run them on your HDA machine with both MS OS (= with and without the alignment
restriction).
The good news is that I now have a good understanding of native's buffer and
period size (cf. the patch in testbot), when there's no alignment restriction:

bufsize   =  MulDiv(duration, pwfx->nSamplesPerSec, 10000000);
fragment  =  MulDiv(period,   pwfx->nSamplesPerSec, 10000000);
parts     =  MulDiv(bufsize, 1, fragment); // not (duration, 1, period)
if(mode==AUDCLNT_SHAREMODE_SHARED)
     ok(gbsize == bufsize, ...
else ok(gbsize == (parts < 8 ? 8 : parts) * fragment, ...

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