def armGenerator(self, generator_name):
generator_name = self.validateGenerator(generator_name)
armed = getattr(self.ns, 'armed', [])
if generator_name is not None and generator_name not in armed:
dsp.log('arming %s...' % generator_name)
armed += [generator_name]
setattr(self.ns, 'armed', armed)
gen = self.loadGenerator(generator_name)
ctl = self.setupCtl(gen)
grid_ctl = self.loadGridCtl()
trigger = midi.MidiTrigger(gen.trigger['device'],
gen.trigger['notes'])
respawn = mp.Event()
p = mp.Process(target=self._armGenerator,
args=(generator_name, gen, ctl, trigger, respawn,
grid_ctl))
p.start()
while generator_name in armed:
respawn.wait()
respawn.clear()
p = mp.Process(target=self._armGenerator,
args=(generator_name, gen, ctl, trigger,
respawn, grid_ctl))
p.start()
armed = getattr(self.ns, 'armed', [])
def armGenerator(self, generator_name):
generator_name = self.validateGenerator(generator_name)
armed = getattr(self.ns, 'armed', [])
if generator_name is not None and generator_name not in armed:
dsp.log('arming %s...' % generator_name)
armed += [ generator_name ]
setattr(self.ns, 'armed', armed)
gen = self.loadGenerator(generator_name)
ctl = self.setupCtl(gen)
trigger = midi.MidiTrigger(gen.trigger['device'], gen.trigger['notes'])
respawn = mp.Event()
p = mp.Process(target=self._armGenerator, args=(generator_name, gen, ctl, trigger, respawn))
p.start()
while generator_name in armed:
respawn.wait()
respawn.clear()
dsp.log('rearming %s...' % generator_name)
p = mp.Process(target=self._armGenerator, args=(generator_name, gen, ctl, trigger, respawn))
p.start()
armed = getattr(self.ns, 'armed', [])
def wait(self):
try:
with mido.open_input(self.device_name) as incoming:
for msg in incoming:
if msg.type == 'note_on' and msg.note in self.notes:
return (msg.note, msg.velocity)
except IOError:
dsp.log('Could not arm MIDI device %s' % self.device_name)
return (None, None)
def register_midi_listener(device_name, ns):
# check to see if this device has a listener already
# start one up if not
if not hasattr(ns, '%s-listener' % device_name):
try:
listener = mp.Process(target=device_scribe, args=(device_name, ns))
listener.start()
setattr(ns, '%s-listener' % device_name, listener.pid)
except IOError:
dsp.log('Could not start listener for unknown MIDI device: %s' % device_name)
def wait(self):
try:
with mido.open_input(self.device_name) as incoming:
for msg in incoming:
if msg.type == 'note_on' and msg.note in self.notes:
return (msg.note, msg.velocity)
except IOError:
dsp.log('Could not arm MIDI device %s' % self.device_name)
return (None, None)
def _playGenerator(self, generator_name, gen, voice_id, ctl, grid_ctl):
try:
os.nice(-2)
except OSError:
os.nice(0)
if not hasattr(self.ns, 'reload'):
setattr(self.ns, 'reload', False)
render_process = None
def render_again(gen, ctl, generator_name, voice_id, ns):
snd = gen.play(ctl)
setattr(ns, 'buffer-%s-%s' % (generator_name, voice_id), snd)
out = self.openAudioDevice()
group = None
if hasattr(gen, 'groups'):
group = gen.groups[ voice_id % len(gen.groups) ]
ctl['group'] = group
iterations = 0
while True:
ctl['count'] = iterations
iterations += 1
if getattr(self.ns, 'reload') == True:
reload(gen)
if hasattr(self.ns, 'buffer-%s-%s' % (generator_name, voice_id)):
snd = getattr(self.ns, 'buffer-%s-%s' % (generator_name, voice_id))
else:
# First play render
snd = gen.play(ctl)
if render_process is None or not render_process.is_alive():
# async start render of next buffer
render_process = mp.Process(name='render-%s-%s' % (generator_name, voice_id), target=render_again, args=(gen, ctl, generator_name, voice_id, self.ns))
render_process.start()
if self.ns.grid:
div = grid_ctl.geti(self.divcc, low=0, high=4, default=0)
div = self.divs[div]
self.ticks[div].wait()
out.write(snd)
if getattr(self.ns, '%s-%s-loop' % (generator_name, voice_id)) == False:
break
try:
delattr(self.ns, 'buffer-%s-%s' % (generator_name, voice_id))
except AttributeError:
dsp.log('Could not remove buffer-%s-%s' % (generator_name, voice_id))
def register_midi_listener(device_name, ns):
# check to see if this device has a listener already
# start one up if not
if not hasattr(ns, '%s-listener' % device_name):
try:
listener = mp.Process(target=device_scribe, args=(device_name, ns))
listener.start()
setattr(ns, '%s-listener' % device_name, listener.pid)
except IOError:
dsp.log('Could not start listener for unknown MIDI device: %s' %
device_name)
def _playPattern(self, pattern):
def _sendMidi(note, velocity, length, device):
velocity = int(round(velocity * 127))
note = int(note)
dsp.log(device)
out = mido.open_output(device)
msg = mido.Message('note_on', note=note, velocity=velocity)
out.send(msg)
dsp.delay(length)
msg = mido.Message('note_off', note=note, velocity=0)
out.send(msg)
def _sendOsc():
pass
device = getattr(self.ns, 'selected-pattern-device',
self.default_midi_device)
dsp.log(device)
if self.validateGenerator(device):
handler = self._playOneshot
elif midi.validate_output_device_by_id(device):
device = midi.validate_output_device_by_id(device) # FIXME dummy
dsp.log(device)
handler = _sendMidi
elif osc.validateAddress(device):
handler = _sendOsc
else:
# Fallback to internal generator
handler = self._playOneshot
device = 'default'
setattr(self.ns, 'pattern-%s' % pattern.id, True)
setattr(self.ns, 'pattern-play-%s' % pattern.id, True)
grid_ctl = self.loadGridCtl()
while getattr(self.ns, 'pattern-%s' % pattern.id):
# wait for tick
if self.ns.grid:
div = getattr(self.ns, 'pattern-div-%s' % pattern.id)
div = self.divs[div]
self.ticks[div].wait()
# freq, 0-1, frames
note, velocity, length = pattern.next()
note = tune.ftom(note)
if velocity > 0 and getattr(self.ns,
'pattern-play-%s' % pattern.id):
n = mp.Process(target=handler,
args=(note, velocity, length, device))
n.start()
def log_listener():
try:
device_names = mido.get_input_names()
devices = [ mido.open_input(device_name) for device_name in device_names ]
devices = mido.ports.MultiPort(devices)
for msg in devices:
if hasattr(ns, 'midi_log_active'):
dsp.log(msg)
else:
continue
except IOError:
dsp.log('Could not open MIDI devices for logging %s' % str(device_names))
def _sendMidi(note, velocity, length, device):
velocity = int(round(velocity * 127))
note = int(note)
dsp.log(device)
out = mido.open_output(device)
msg = mido.Message('note_on', note=note, velocity=velocity)
out.send(msg)
dsp.delay(length)
msg = mido.Message('note_off', note=note, velocity=0)
out.send(msg)
def _sendMidi(note, velocity, length, device):
velocity = int(round(velocity * 127))
note = int(note)
dsp.log(device)
out = mido.open_output(device)
msg = mido.Message('note_on', note=note, velocity=velocity)
out.send(msg)
dsp.delay(length)
msg = mido.Message('note_off', note=note, velocity=0)
out.send(msg)
def stopGenerator(self, generator_name, kill=False):
if generator_name in self.looping:
for voice_id, process in self.looping[generator_name].iteritems():
setattr(self.ns, '%s-%s-loop' % (generator_name, voice_id), False)
if kill:
process.terminate()
del self.looping[generator_name]
return True
dsp.log('Could not stop %s generators: none currently playing' % generator_name)
return False
def _playPattern(self, pattern):
def _sendMidi(note, velocity, length, device):
velocity = int(round(velocity * 127))
note = int(note)
dsp.log(device)
out = mido.open_output(device)
msg = mido.Message('note_on', note=note, velocity=velocity)
out.send(msg)
dsp.delay(length)
msg = mido.Message('note_off', note=note, velocity=0)
out.send(msg)
def _sendOsc():
pass
device = getattr(self.ns, 'selected-pattern-device', self.default_midi_device)
dsp.log(device)
if self.validateGenerator(device):
handler = self._playOneshot
elif midi.validate_output_device_by_id(device):
device = midi.validate_output_device_by_id(device) # FIXME dummy
dsp.log(device)
handler = _sendMidi
elif osc.validateAddress(device):
handler = _sendOsc
else:
# Fallback to internal generator
handler = self._playOneshot
device = 'default'
setattr(self.ns, 'pattern-%s' % pattern.id, True)
setattr(self.ns, 'pattern-play-%s' % pattern.id, True)
grid_ctl = self.loadGridCtl()
while getattr(self.ns, 'pattern-%s' % pattern.id):
# wait for tick
if self.ns.grid:
div = getattr(self.ns, 'pattern-div-%s' % pattern.id)
div = self.divs[div]
self.ticks[div].wait()
# freq, 0-1, frames
note, velocity, length = pattern.next()
note = tune.ftom(note)
if velocity > 0 and getattr(self.ns, 'pattern-play-%s' % pattern.id):
n = mp.Process(target=handler, args=(note, velocity, length, device))
n.start()
def wait(self):
try:
with mido.open_input(self.device_name) as incoming:
for msg in incoming:
if self.notes is not None:
if msg.type == 'note_on' and msg.note in self.notes:
return (msg.note, msg.velocity)
if self.cc is not None:
if msg.type == 'control_change' and msg.control in self.cc and msg.value > 0:
return (msg.control, msg.value)
except IOError:
dsp.log('Could not arm MIDI device %s' % self.device_name)
return (None, None)
def stopGenerator(self, generator_name, kill=False):
if generator_name in self.looping:
for voice_id, process in self.looping[generator_name].iteritems():
setattr(self.ns, '%s-%s-loop' % (generator_name, voice_id),
False)
if kill:
process.terminate()
del self.looping[generator_name]
return True
dsp.log('Could not stop %s generators: none currently playing' %
generator_name)
return False
def wait(self):
try:
with mido.open_input(self.device_name) as incoming:
for msg in incoming:
if self.notes is not None:
if msg.type == 'note_on' and msg.note in self.notes:
return (msg.note, msg.velocity)
if self.cc is not None:
if msg.type == 'control_change' and msg.control in self.cc and msg.value > 0:
return (msg.control, msg.value)
except IOError:
dsp.log('Could not arm MIDI device %s' % self.device_name)
return (None, None)
def log_listener():
try:
device_names = mido.get_input_names()
devices = [
mido.open_input(device_name) for device_name in device_names
]
devices = mido.ports.MultiPort(devices)
for msg in devices:
if hasattr(ns, 'midi_log_active'):
dsp.log(msg)
else:
continue
except IOError:
dsp.log('Could not open MIDI devices for logging %s' %
str(device_names))
def play(self, generator, ns, voice_id, voice_index, loop=True):
sys.path.insert(0, os.getcwd())
gen = __import__(generator)
midi_devices = {}
if hasattr(gen, 'midi'):
for device, device_id in gen.midi.iteritems():
dsp.log('\ndevice: %s device_id: %s' % (device, device_id))
try:
midi_devices[device] = MidiManager(device_id, ns)
dsp.log('setting midi manager %s' % device_id)
except:
dsp.log('Could not load midi device %s with id %s' % (device, device_id))
param_manager = ParamManager(ns)
if audio_engine == 'alsa':
out = self.open_alsa_pcm(ns.device)
elif audio_engine == 'portaudio':
out = self.open_pyaudio_pcm(ns.device)
else:
print 'Playback is disabled.'
return False
try:
os.nice(-2)
except OSError:
os.nice(0)
group = None
if hasattr(gen, 'groups'):
group = gen.groups[ voice_index % len(gen.groups) ]
meta = {
'midi': midi_devices,
'param': param_manager,
'id': voice_id,
'group': group
}
if not hasattr(ns, 'reload'):
setattr(ns, 'reload', False)
while getattr(ns, '%s-%s-loop' % (generator, voice_id)) == True:
if getattr(ns, 'reload') == True:
reload(gen)
snd = gen.play(meta)
snd = dsp.split(snd, 500)
for s in snd:
try:
out.write(s)
except AttributeError:
dsp.log('Could not write to audio device')
return False
return True
def device_scribe(device_name, ns):
try:
with mido.open_input(device_name) as incoming:
for msg in incoming:
msg_id = None
value = None
if hasattr(msg, 'control'):
msg_id = msg.control
value = msg.value
if hasattr(msg, 'note'):
msg_id = msg.note
value = msg.velocity
setattr(ns, '%s-%s-%s' % (device_name, msg.type, msg_id), value)
delattr(ns, '%s-listener' % device_name)
except IOError:
dsp.log('Could not open MIDI device %s' % device_name)
def device_scribe(device_name, ns):
try:
with mido.open_input(device_name) as incoming:
for msg in incoming:
msg_id = None
value = None
if hasattr(msg, 'control'):
msg_id = msg.control
value = msg.value
if hasattr(msg, 'note'):
msg_id = msg.note
value = msg.velocity
setattr(ns, '%s-%s-%s' % (device_name, msg.type, msg_id),
value)
delattr(ns, '%s-listener' % device_name)
except IOError:
dsp.log('Could not open MIDI device %s' % device_name)
def findGenerators(self):
generators = []
try:
gens = glob.glob("*.py")
for filename in gens:
# Get base filename and strip .py extension
filename = os.path.basename(filename)[:-3]
generators += [ filename ]
if len(generators) > 0:
return generators
dsp.log('Discovered %s available generator scripts' % len(generators))
except OSError:
pass
dsp.log('No generators found')
return False
def findGenerators(self):
generators = []
try:
gens = glob.glob("*.py")
for filename in gens:
# Get base filename and strip .py extension
filename = os.path.basename(filename)[:-3]
generators += [filename]
if len(generators) > 0:
return generators
dsp.log('Discovered %s available generator scripts' %
len(generators))
except OSError:
pass
dsp.log('No generators found')
return generators
def play(self, generator, ns, voice_id, voice_index, loop=True):
sys.path.insert(0, os.getcwd())
gen = __import__(generator)
midi_devices = {}
if hasattr(gen, 'midi'):
for device, device_id in gen.midi.iteritems():
dsp.log('\ndevice: %s device_id: %s' % (device, device_id))
try:
pygame.midi.init()
device_info = pygame.midi.get_device_info(device_id)
device_type = 'input' if device_info[2] else 'output'
pygame.midi.quit()
except:
dsp.log('could not read device %s' % device_id)
device_type = 'output'
try:
mappings = None
if hasattr(gen, 'mappings'):
if device in gen.mappings:
mappings = gen.mappings[device]
midi_devices[device] = MidiManager(device_id, ns,
device_type, mappings)
dsp.log('setting midi manager %s' % device_id)
except:
dsp.log('Could not load midi device %s with id %s' %
(device, device_id))
param_manager = ParamManager(ns)
if audio_engine == 'alsa':
out = self.open_alsa_pcm(ns.device)
elif audio_engine == 'portaudio':
out = self.open_pyaudio_pcm(ns.device)
else:
print 'Playback is disabled.'
return False
try:
os.nice(-2)
except OSError:
os.nice(0)
group = None
if hasattr(gen, 'groups'):
group = gen.groups[voice_index % len(gen.groups)]
if hasattr(gen, 'sbank'):
sbank = {}
for snd in gen.sbank:
sbank[snd[0]] = dsp.read(snd[1]).data
else:
sbank = None
meta = {
'midi': midi_devices,
'param': param_manager,
'id': voice_id,
'group': group,
'sbank': sbank
}
if not hasattr(ns, 'reload'):
setattr(ns, 'reload', False)
render_process = None
def render_again(gen, meta, voice_id, ns):
snd = gen.play(meta)
setattr(ns, 'buffer-%s' % voice_id, snd)
iterations = 0
while getattr(ns, '%s-%s-loop' % (generator, voice_id)) == True:
meta['iterations'] = iterations
iterations += 1
dsp.log('playing %s, id %s, iter %s' %
(generator, voice_id, iterations))
if getattr(ns, 'reload') == True and not hasattr(gen, 'automate'):
reload(gen)
# automate will always override play
if hasattr(gen, 'play') and not hasattr(gen, 'automate'):
if hasattr(ns, 'buffer-%s' % voice_id):
snd = getattr(ns, 'buffer-%s' % voice_id)
else:
# First play render
snd = gen.play(meta)
if render_process is None or not render_process.is_alive():
# async start render of next buffer
render_process = mp.Process(name='render-%s' % voice_id,
target=render_again,
args=(gen, meta, voice_id, ns))
render_process.start()
snd = dsp.split(snd, 500)
# if grid is on, wait for a tick to start playback
if ns.grid:
self.tick.wait()
for s in snd:
try:
out.write(s)
except AttributeError:
dsp.log('Could not write to audio device')
return False
if hasattr(gen, 'automate'):
gen.automate(meta)
if hasattr(gen, 'loop_time'):
time.sleep(gen.loop_time)
delattr(ns, 'buffer-%s' % voice_id)
return True
def _playGenerator(self, generator_name, gen, voice_id, ctl, grid_ctl):
try:
os.nice(-2)
except OSError:
os.nice(0)
if not hasattr(self.ns, 'reload'):
setattr(self.ns, 'reload', False)
render_process = None
def render_again(gen, ctl, generator_name, voice_id, ns):
snd = gen.play(ctl)
setattr(ns, 'buffer-%s-%s' % (generator_name, voice_id), snd)
out = self.openAudioDevice()
group = None
if hasattr(gen, 'groups'):
group = gen.groups[voice_id % len(gen.groups)]
ctl['group'] = group
iterations = 0
while True:
ctl['count'] = iterations
iterations += 1
if getattr(self.ns, 'reload') == True:
reload(gen)
if hasattr(self.ns, 'buffer-%s-%s' % (generator_name, voice_id)):
snd = getattr(self.ns,
'buffer-%s-%s' % (generator_name, voice_id))
else:
# First play render
snd = gen.play(ctl)
if render_process is None or not render_process.is_alive():
# async start render of next buffer
render_process = mp.Process(
name='render-%s-%s' % (generator_name, voice_id),
target=render_again,
args=(gen, ctl, generator_name, voice_id, self.ns))
render_process.start()
if self.ns.grid:
div = grid_ctl.geti(self.divcc, low=0, high=4, default=0)
div = self.divs[div]
self.ticks[div].wait()
out.write(snd)
if getattr(self.ns,
'%s-%s-loop' % (generator_name, voice_id)) == False:
break
try:
delattr(self.ns, 'buffer-%s-%s' % (generator_name, voice_id))
except AttributeError:
dsp.log('Could not remove buffer-%s-%s' %
(generator_name, voice_id))
def play(self, generator, ns, voice_id, voice_index, loop=True):
sys.path.insert(0, os.getcwd())
gen = __import__(generator)
midi_devices = {}
if hasattr(gen, 'midi'):
for device, device_id in gen.midi.iteritems():
dsp.log('\ndevice: %s device_id: %s' % (device, device_id))
try:
pygame.midi.init()
device_info = pygame.midi.get_device_info(device_id)
device_type = 'input' if device_info[2] else 'output'
pygame.midi.quit()
except:
dsp.log('could not read device %s' % device_id)
device_type = 'output'
try:
mappings = None
if hasattr(gen, 'mappings'):
if device in gen.mappings:
mappings = gen.mappings[device]
midi_devices[device] = MidiManager(device_id, ns, device_type, mappings)
dsp.log('setting midi manager %s' % device_id)
except:
dsp.log('Could not load midi device %s with id %s' % (device, device_id))
param_manager = ParamManager(ns)
if audio_engine == 'alsa':
out = self.open_alsa_pcm(ns.device)
elif audio_engine == 'portaudio':
out = self.open_pyaudio_pcm(ns.device)
else:
print 'Playback is disabled.'
return False
try:
os.nice(-2)
except OSError:
os.nice(0)
group = None
if hasattr(gen, 'groups'):
group = gen.groups[ voice_index % len(gen.groups) ]
if hasattr(gen, 'sbank'):
sbank = {}
for snd in gen.sbank:
sbank[snd[0]] = dsp.read(snd[1]).data
else:
sbank = None
meta = {
'midi': midi_devices,
'param': param_manager,
'id': voice_id,
'group': group,
'sbank': sbank
}
if not hasattr(ns, 'reload'):
setattr(ns, 'reload', False)
render_process = None
def render_again(gen, meta, voice_id, ns):
snd = gen.play(meta)
setattr(ns, 'buffer-%s' % voice_id, snd)
iterations = 0
while getattr(ns, '%s-%s-loop' % (generator, voice_id)) == True:
meta['iterations'] = iterations
iterations += 1
dsp.log('playing %s, id %s, iter %s' % (generator, voice_id, iterations))
if getattr(ns, 'reload') == True and not hasattr(gen, 'automate'):
reload(gen)
# automate will always override play
if hasattr(gen, 'play') and not hasattr(gen, 'automate'):
if hasattr(ns, 'buffer-%s' % voice_id):
snd = getattr(ns, 'buffer-%s' % voice_id)
else:
# First play render
snd = gen.play(meta)
if render_process is None or not render_process.is_alive():
# async start render of next buffer
render_process = mp.Process(name='render-%s' % voice_id, target=render_again, args=(gen, meta, voice_id, ns))
render_process.start()
snd = dsp.split(snd, 500)
# if grid is on, wait for a tick to start playback
if ns.grid:
self.tick.wait()
for s in snd:
try:
out.write(s)
except AttributeError:
dsp.log('Could not write to audio device')
return False
if hasattr(gen, 'automate'):
gen.automate(meta)
if hasattr(gen, 'loop_time'):
time.sleep(gen.loop_time)
delattr(ns, 'buffer-%s' % voice_id)
return True
