[Bug 9220] Final Fantasy 7 hangs in winmm

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=9220


Jörg Höhle <hoehle at users.sourceforge.net> changed:

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--- Comment #13 from Jörg Höhle <hoehle at users.sourceforge.net>  2010-01-20 17:25:18 ---
I hacked winmm.c:midiOutOpen and midiStreamOpen to open uDeviceID=0 (the first
device) when given -1/FFFF (MIDI MAPPER).  This allows ff7demo to not hang in
winmm and proceed to show the intro logos. After those, the knight enters the
scene. It crashes a little later, when the knight swings his sword.

This worked with both timidity and fluidsynth as ALSA sequencers.  With
timidity, music is awfully chopped.

This seems to show that the MIDI mapper produces errors or return codes that
the app does not expect.  (Likewise, the wave mapper is not return-code
compatible with native, and I believe some apps get confused, but I don't know
the details).

Perhaps there's also a "callback on different thread" issue mentioned in bug
#3930 ? In http://msdn.microsoft.com/en-us/library/dd757372(VS.85).aspx MSDN
says "Playback ... continues ... regardless of how much time is spent in the
callback function." Are they sent from another thread (or interrupt)? Wine
calls FUNCTION callbacks synchronously in driver.c:DriverCallback AFAICT. A
long lasting callback (or thread suspension) would stop playback in Wine.

Tested in Ubuntu with AC'97 Intel onboard sound, wine-1.1.36.

Interestingly, I also got past the winmm hang with neither timidity nor
fluidsynth running.  The menu mentioned "MIDI-through port".  Retesting this,
it even went past the "swing the sword" crash.  Nevertheless, ff7 crashed a
little later, still in the intro, when the knight faces 3 monsters, not always
at the same spot.

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