dsound global variable use reduction

[Robert Reif]

Reduce the use of the dsound global variable by
passing address to functions.  This is in preparation
of supporting multiple DirectSound devices.  We can't
remove all uses because an mmtimer callback can be
called even after the timer is killed.  Windows has an
mmtimer flag that prevents this but wine doesn't
implement it.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: dsound.diff
Type: application/x-unknown-content-type-diff_auto_file
Size: 5572 bytes
Desc: not available
Url : http://www.winehq.org/pipermail/wine-patches/attachments/20040109/1768d566/dsound.bin