As we can now configure the alsa device in the GUI, it's no longer necessary to write the first working device back to the configuration.
Also there is now the "auto" device to automatically try to initialize the alsa device.
Trying to load the device from the emu.cfg and if not set (should be the default for everyone currently) use the existing procedure to try to determine the device (default > plughw:0,0,0 > plughw:0,0).
This introduces the USE_ALSA flag (replaces the somewhat hacky
"HOST_OS==OS_LINUX && !defined(TARGET_NACL32) && !defined(ANDROID)"
if case).
The Makefiles for beagle, gcwz, lin86 and pandora have been adapted to
reflect this change.
This adds the OSS audio backend, which is basically a slightly modified
version of core/oslib/alsa_audiostream.cpp from the skmp/linux-x64
branch (as of commit cdf9f3dc971506c2efd979275c2869f064e1027c).
The ALSA backend will be included during compilation if HOST_OS is OS_LINUX
and neither TARGET_NACL32 nor ANDROID are defined. This should be
changed to a USE_ALSA flag in the future (for constistency and and
simplicity reasons), but i didn't want to put too much stuff into this
commit.
scribam