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

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

Bug #: 28723
           Summary: Sound stutter in Rage when emulated windows version is
                    set to "Windows 7" (XAudio2 -> mmdevapi sound out
                    path)
           Product: Wine
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winealsa.drv
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
                CC: [e-mail]
    Classification: Unclassified
   Regression SHA1: b0652dd8bdb144645be4a6bf77cbb68a8ade49d9

This bug is twin-brother of fixed bug #28679. That one was when the app were
using dsound API, this one seems to be when app uses mmdevapi directly.

Same "first bad commit", reverting it fixes sound stutter in RAGE.

I don't know any other Windows app I've got installed on my workstation which
uses mmdevapi either directly or through XAudio2 (except for Starcraft II which
seems to be unaffected by either this bug and bug #28679).

Andrew, do you need usual sound-related debug logs for tracking this down? I
can capture them from RAGE but I'm afraid they would be a bit polluted by
unrelated messages from Steam client.