def open_device(self):
# the app will crash if I rmmod awe_awe
solfege_c_midi.cvar.seqfd = os.open(self.m_device, os.O_WRONLY, 0)
if not solfege_c_midi.sndctl_seq_reset():
# we cannot use self.close() because that function will try
# to call sndctl_seq_reset()
os.close(solfege_c_midi.cvar.seqfd)
solfege_c_midi.cvar.seqfd = -1
raise SyscallException(
"While trying to open the device %s\nioctl(seqfd, SNDCTL_SEQ_RESET) failed"
% self.m_device, solfege_c_midi.cvar.errno)
i = solfege_c_midi.sndctl_seq_nrsynths()
if i == -1:
self.close()
raise SyscallException(
"While trying to open the device %s\nioctl(seqfd, SNDCTL_SEQ_NRSYNTHS, &n) failed"
% self.m_device, solfege_c_midi.cvar.errno)
if self.m_devnum >= i:
if i == 0:
self.close()
raise SeqNoSynthsException(self.m_device)
else:
self.m_devnum = i - 1
self.m_num_voices = solfege_c_midi.get_synth_nr_voices(self.m_devnum)
if self.m_num_voices == -1:
self.close()
raise SyscallException(
"While trying to open the device %s\nioctl(seqfd, SNDCTL_SYNTH_INFO, &si) failed"
% self.m_device, solfege_c_midi.cvar.errno)
def open_device(self):
# the app will crash if I rmmod awe_awe
solfege_c_midi.cvar.seqfd = os.open(self.m_device, os.O_WRONLY, 0)
if not solfege_c_midi.sndctl_seq_reset():
# we cannot use self.close() because that function will try
# to call sndctl_seq_reset()
os.close(solfege_c_midi.cvar.seqfd)
solfege_c_midi.cvar.seqfd = -1
raise SyscallException(
"While trying to open the device %s\nioctl(seqfd, SNDCTL_SEQ_RESET) failed" % self.m_device,
solfege_c_midi.cvar.errno,
)
i = solfege_c_midi.sndctl_seq_nrsynths()
if i == -1:
self.close()
raise SyscallException(
"While trying to open the device %s\nioctl(seqfd, SNDCTL_SEQ_NRSYNTHS, &n) failed" % self.m_device,
solfege_c_midi.cvar.errno,
)
if self.m_devnum >= i:
if i == 0:
self.close()
raise SeqNoSynthsException(self.m_device)
else:
self.m_devnum = i - 1
self.m_num_voices = solfege_c_midi.get_synth_nr_voices(self.m_devnum)
if self.m_num_voices == -1:
self.close()
raise SyscallException(
"While trying to open the device %s\nioctl(seqfd, SNDCTL_SYNTH_INFO, &si) failed" % self.m_device,
solfege_c_midi.cvar.errno,
)
def play_midieventstream(self, midieventstream):
solfege_c_midi.sndctl_seq_reset()
self.reset()
solfege_c_midi.seq_start_timer()
for e in midieventstream:
if e[0] == midieventstream.TEMPO:
self.__tempo = (e[1], e[2])
elif e[0] == midieventstream.NOTE_ON:
channel, note, vel = e[1:4]
voice = self.alloc_voice(channel, note)
if voice is not None:
# FIXME ugly hack for percussion. This will break if
# we play polyphonic music with very many voices
if channel == 9: # voice == 31:
voice = 9
solfege_c_midi.seq_start_note(self.m_devnum, voice, note,
vel)
elif e[0] == midieventstream.NOTE_OFF:
channel, note, vel = e[1:4]
voice = self.free_voice(channel, note)
if voice is not None:
# FIXME, see 10 lines up
if channel == 9: # voice == 31:
voice = 9
solfege_c_midi.seq_stop_note(self.m_devnum, voice, note,
vel)
elif e[0] == midieventstream.NOTELEN_TIME:
# 96 is a const, also used in soundcard.initialize that
# I don't understand.
solfege_c_midi.seq_delta_time(
int(
int(96 * e[1]) * 60.0 * self.__tempo[1] /
self.__tempo[0]))
elif e[0] == midieventstream.SET_PATCH:
self.set_patch(e[1], e[2])
elif e[0] == midieventstream.BENDER:
logging.debug("FIXME: DevSequencerSynth.BENDER")
#solfege_d_midi.seq_bender(self.m_devnum, e[1], e[2])
elif e[0] == midieventstream.VOLUME:
logging.debug(
"oss_sequencer: seq_set_volume for /dev/sequencer not tested, so it is commented out."
)
#m.seq_set_volume(self.m_devnum, e[1], e[2])
else:
raise Exception("oss_sequencer: play track error")
solfege_c_midi.seqbuf_dump()
def play_midieventstream(self, midieventstream):
solfege_c_midi.sndctl_seq_reset()
self.reset()
solfege_c_midi.seq_start_timer()
for e in midieventstream:
if e[0] == midieventstream.TEMPO:
self.__tempo = (e[1], e[2])
elif e[0] == midieventstream.NOTE_ON:
channel, note, vel = e[1:4]
voice = self.alloc_voice(channel, note)
if voice is not None:
# FIXME ugly hack for percussion. This will break if
# we play polyphonic music with very many voices
if channel == 9: # voice == 31:
voice = 9
solfege_c_midi.seq_start_note(self.m_devnum, voice, note, vel)
elif e[0] == midieventstream.NOTE_OFF:
channel, note, vel = e[1:4]
voice = self.free_voice(channel, note)
if voice is not None:
# FIXME, see 10 lines up
if channel == 9: # voice == 31:
voice = 9
solfege_c_midi.seq_stop_note(self.m_devnum, voice, note, vel)
elif e[0] == midieventstream.NOTELEN_TIME:
# 96 is a const, also used in soundcard.initialize that
# I don't understand.
solfege_c_midi.seq_delta_time(int(int(96 * e[1]) * 60.0 * self.__tempo[1] / self.__tempo[0]))
elif e[0] == midieventstream.SET_PATCH:
self.set_patch(e[1], e[2])
elif e[0] == midieventstream.BENDER:
logging.debug("FIXME: DevSequencerSynth.BENDER")
#solfege_d_midi.seq_bender(self.m_devnum, e[1], e[2])
elif e[0] == midieventstream.VOLUME:
logging.debug("oss_sequencer: seq_set_volume for /dev/sequencer not tested, so it is commented out.")
#m.seq_set_volume(self.m_devnum, e[1], e[2])
else:
raise Exception("oss_sequencer: play track error")
solfege_c_midi.seqbuf_dump()
def stop(self):
solfege_c_midi.sndctl_seq_reset()
def close(self):
if solfege_c_midi.cvar.seqfd != -1:
solfege_c_midi.sndctl_seq_reset()
os.close(solfege_c_midi.cvar.seqfd)
solfege_c_midi.cvar.seqfd = -1
def stop(self):
solfege_c_midi.sndctl_seq_reset()
def close(self):
if solfege_c_midi.cvar.seqfd != -1:
solfege_c_midi.sndctl_seq_reset()
os.close(solfege_c_midi.cvar.seqfd)
solfege_c_midi.cvar.seqfd = -1
