loading sounds asynchronously fails

[Nemesis#13]

loader.loadSound should be capable of loading sounds asynchronously (though a callback param), but it fails since it needs the class AudioLoadRequest, which is not in the code base.

That said, there's no way to load sound files asynchronously.

[rdb (rdb)]

Could you provide a testcase?

[Nemesis#13 (dev)]

Sure.

audioload.py:
from direct.showbase.ShowBase import ShowBase

def loaded(*args):
    print "call. got args: "+str(*args)

ShowBase()
songname="whatever.mp3"
s = loader.loadSound(base.musicManager, songname, callback=loaded)
#s.play()

run()

Output:
>> python2 audioload.py
Known pipe types:
  glxGraphicsPipe
(all display modules loaded.)
:display:glxdisplay(warning): No suitable FBConfig contexts available; using XVisual only.
depth_bits=24 color_bits=24 alpha_bits=8 stencil_bits=8 back_buffers=1 force_hardware=1
Traceback (most recent call last):
  File "audioload.py", line 9, in <module>
    s = loader.loadSound(base.musicManager, songname, callback=loaded)
  File "/usr/share/panda3d/direct/showbase/Loader.py", line 765, in loadSound
    request = AudioLoadRequest(manager, soundPath, positional)
NameError: global name 'AudioLoadRequest' is not defined

[Josh Enes (joshenes)]

This patch will cause AudioLoadRequest to be interrogated, and thus included in the Python API.

[rdb (rdb)]

Many thanks for the help! It's really supposed to be in the IGATEFILES list for the panda/src/audio directory in makepanda.py, but this should do the trick too. I've committed your patch and picked it up for the 1.8 branch.