spc_amp from a x.4 fixed point number to a normal float.
- Switched SPC playback from the external SNESAPU.DLL to Blargg's LGPL
snes_spc library. I've compiled it with the fast DSP rather than the
highly accurate one, since I didn't notice a meaningful difference between
the two in my limited testing. In short: SPC playback is now built in to
ZDoom. You don't need to download anything extra to make it work, and it
also works on Linux as well as Windows (though building with Linux is
currently untested).
- Fixed: Stereo separation was calculated very wrongly when in 2D sound mode.
SVN r794 (trunk)
