[B2-devel] PATCH: audio format switching for IRIX

[Brian J. <bjj...@us...>]

Here's a patch which adds audio format switching to the IRIX audio
driver.  I also reorganized things a bit to more closely match the
OSS/ESD driver.  Could someone please apply it?  Thanks.

It seems to work fine, except for 8-bit mono mode.  I use the same
conversion algorithm as audio_amiga.cpp (and experimented with several
others), but the sound comes out highly distorted, and pretty much
unrecognizable.  Can anyone point me at a description of the Mac's
sample buffer layout when this mode is in use?

FYI to anyone building this on IRIX:  the released MIPSPro 7.4
compilers have some really nasty bugs with C++ code optimization, and
can't build a working BasiliskII with any optimization turned on.
(And the emulator performance suffers terribly, of course, without
optimization.)  This will be fixed in the 7.4.1 release.

Thanks for a great emulator,

						Brian

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  "My software never has bugs.  It just develops random features."
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