[Bug 30811] New: Music in Alpha Centauri stutters

http://bugs.winehq.org/show_bug.cgi?id=30811

Bug #: 30811
           Summary: Music in Alpha Centauri stutters
           Product: Wine
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

Created attachment 40348
  --> http://bugs.winehq.org/attachment.cgi?id=40348
Trace with
WINEDEBUG=3D+driver,+winmm,+mmio,+mmsys,+sound,+mmtime,+mciwave,+msacm,+wavemap,+wave,+midi,+mixer,+mmaux,+dscapture,+dsound,+dsound3d

The background music in Alpha Centauri stutters. The music is generated on the
fly through a tracker like system that uses midi and wave files (see .amb files
in the fx directory). It is odd that the music is only affected and not sound
effects in general.

The attached trace shows several mmio warnings about the buffers being too
large. I suspect that it might cause sound stuttering if the buffers are not
big enough to hold all the sound data.