def __del__(self):
"""Deletes the SoundSink and also destroys the associated
context and closes the bound audio output device."""
if self.context:
for ssid, source in self._sources.items():
querystate = al.get_source_i(ssid, al.AL_SOURCE_STATE)
if querystate != al.AL_STOPPED:
al.source_stop(ssid)
al.delete_sources([ssid])
source._ssid = None
self._sources = {}
al.delete_buffers(self._buffers.keys())
self._buffers = {}
alc.destroy_context(self.context)
if self._hasopened:
alc.close_device(self.device)
self.context = None
self.device = None
def process_source(self, source):
"""Processes a SoundSource.
Note: this does NOT activate the SoundSink. If another SoundSink
is active, chances are good that the source is processed in that
SoundSink.
"""
ssid = source._ssid
if ssid is None:
ssid = self._create_source(source)
# TODO: this should be only set on changes.
# al.source_f(ssid, al.AL_GAIN, source.gain)
# al.source_f(ssid, al.AL_PITCH, source.pitch)
# al.source_fv(ssid, al.AL_POSITION, source.position)
# al.source_fv(ssid, al.AL_VELOCITY, source.velocity)
self._create_buffers(source)
querystate = al.get_source_i(ssid, al.AL_SOURCE_STATE)
if source.request == SOURCE_NONE:
# if no change is to be made, nothing will be done.
pass
elif source.request == SOURCE_REWIND:
al.source_rewind(ssid)
source.request = SOURCE_NONE
elif source.request == SOURCE_PLAY:
if querystate != al.AL_PLAYING:
al.source_play(ssid)
source.request = SOURCE_NONE
elif source.request == SOURCE_STOP:
if querystate != al.AL_STOPPED:
al.source_stop(ssid)
source.request = SOURCE_NONE
elif source.request == SOURCE_PAUSE:
if querystate != al.AL_PAUSED:
al.source_pause(ssid)
source.request = SOURCE_NONE
else:
raise ValueError("invalid request state on source")
