[Bug 14052] CoreAudio driver broken

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=14052





--- Comment #21 from Jörg Höhle <hoehle at users.sourceforge.net>  2010-07-09 15:50:01 ---
I believe that the recent 1.2-rcX changes to winmm initialisation may have
cured the crash.

However, everything is not perfect yet. Change user.reg to point to a
non-existing device, then start winecfg, acknowledge the "remove device"
requester and click "test sound". With WINEDEBUG=+winmm,+wave,+midi, you'll
notice Wine still attempts to access the non-existing device and "test sound"
fails.
Exit winecfg and restart it to obtain sensible behaviour.

ALSA and OSS don't behave strangely like that. I notice they initialise their
sound system much later, whereas coreaudio does it in CoreAudio_drvLoad, i.e.
upon receipt of the DRV_LOAD message. This message is ignored by ALSA and OSS.
Why is the initialisation different?

BTW, winecfg never causes CoreAudio_*Release to be called. It is called when I
exit e.g. the MCI shell. I don't know what causes this difference and why Wine
does not always release the drivers.

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