def start(self):
while True:
if alsaseq.inputpending():
(etype, # enum snd_seq_event_type
flags,
tag,
queue,
timestamp,
source,
destination,
data) = alsaseq.input()
sec, msec = timestamp
sclient, sport = source
dclient, dport = destination
event = self.events[etype] if etype in self.events else etype
if event in ['controller', 'pgmchange', 'chanpress', 'pitchbend']:
channel, _, _, _, *params = data
else:
channel, *params = data
print('{} event, channel {}, params {}, timestamp {}'
.format(event, channel, params, timestamp))
if event in self.binds:
self.binds[event](*params[:2])
def main():
se = ServoEvent()
parser = MusicParser()
alsaseq.client('RoboWhistle PassThrough', 1, 1,
False) # Set up a new ALSA channel
alsaseq.connectfrom(
1, 129, 0) # Midi file input needs to be sent in to channel 129
# Backup ALSA channel to run on port 128. Can use either a virtual synth (e.g. Timidity or a physical MIDI keyboard)
alsaseq.connectto(1, 128, 0)
srv = ServoEvent()
srv.ResetServoEvent()
#To enter FreePlay mode provide any argument when running the program; if left blank AutoPlay will proceed automaticlly
if len(sys.argv) is 2:
print "Entering FreePlay Mode"
play = FreePlay()
play.ManualPlay()
else:
print str(len(sys.argv))
while 1:
if alsaseq.inputpending(): # ALSA queue
event = alsaseq.input() # Pop event from top of the queue
eventPitch = event[7][
1] # Pitch of the note that needs to be played
parsedNote = parser.AnalyseSingleNote(eventPitch % 12)
if parsedNote is None:
alsaseq.output(
event
) # Event is unplayable by the whistle, forward it to the synthesiser
else:
se.PlayNoteEvent(parsedNote) # Pass item for playing
def play(self):
while self.is_running:
# check for quit in pygame
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_SPACE:
self.interrupt = not self.interrupt
print("toggle interrupt")
if event.key == pygame.K_ESCAPE:
self.is_running = False
if event.key == pygame.K_RIGHT:
self.update_step()
if event.key == pygame.K_LEFT:
self.update_step(direction="backward")
elif event.type == pygame.QUIT:
self.is_running = False
if alsaseq.inputpending():
event = alsaseq.input()
if event[
0] == 6: # note on event (zumindest bei kleinem midikeyboard)
self.reaction_note_on(event)
elif event[0] == 7:
self.reaction_note_off(event)
def interaction_loop():
"""Interaction loop for the box, reads serial,
makes predictions, outputs servo and sound."""
global last_received_midi
# Start Lever Processing
userloc = read_lever()
if userloc is not None:
if args.verbose:
print("Input:", userloc)
# Send MIDI to synth.
midi_loc = int(userloc * 127)
midi_ctl_event = (10, 1, 0, 0, (0, 0), (0, 0), (0, 0), (0, 0, 0, 0, 0, midi_loc))
alsaseq.output(midi_ctl_event)
# print("MIDIOUT:", midi_ctl_event)
if args.mirror:
last_received_midi = midi_loc
# Read incoming midi.
while(alsaseq.inputpending() > 0):
midi_event = alsaseq.input()
if midi_event[0] == SND_SEQ_EVENT_CONTROLLER:
# just take the controller value
last_received_midi = midi_event[7][5]
# do something with it
if args.verbose:
print("Servo:", last_received_midi)
# print("MIDI:", midi_event)
if args.servo:
# Only send to servo if args suggest it.
# Only act on most recent message.
command_servo(last_received_midi)
def MIDIgen(self):
# Try to run using a platform-specific backend
if platform.system() == "Linux" and alsa_ok:
alsaseq.client("Audionodes", 1, 1, False)
while True:
if alsaseq.inputpending():
inputData = alsaseq.input()
if inputData[0] in (6, 7): # Key
f = 440 * (2**((inputData[-1][1] - 48) / 12))
yield {
"type": "key",
"frequency": f,
"velocity": inputData[-1][2],
"note": inputData[-1][1]
}
elif inputData[0] in (10, ): # Sustain
yield {
"type": "sustain",
"velocity": inputData[-1][-1]
}
time.sleep(0.01)
# If such is not available, fall back to PyGame
else:
pygame.init()
midi.init()
inputdata = midi.Input(midi.get_default_input_id())
def toDict(event):
velocity = event[0][0][2]
# Sustain
if event[0][0][0] == 176 and event[0][0][1] == 64:
return {"velocity": velocity, "type": "sustain"}
elif event[0][0][0] == 144:
note = event[0][0][1]
f = 440 * (2**((note - 48) / 12))
return {
"type": "key",
"velocity": velocity,
"note": note,
"frequency": f
}
while 1:
if inputdata.poll():
event = inputdata.read(1)
if toDict(event) != None:
print(toDict(event))
yield toDict(event)
time.sleep(0.01)
def midi_read(self):
while alsaseq.inputpending():
event = alsaseq.input()
chan = event[7][0]
if event[0]==alsaseq.SND_SEQ_EVENT_CONTROLLER and chan==self.midi_chan and self.active_screen=='control':
ctrl = event[7][4]
val = event[7][5]
print ("MIDI CTRL " + str(ctrl) + ", CH" + str(chan) + " => " + str(val))
if ctrl in self.screens['control'].zcontroller_map.keys():
self.screens['control'].zcontroller_map[ctrl].set_value(val,True)
if self.polling:
top.after(40, self.midi_read)
def run(self):
import select
alsaseq.client(appinfo.name, self.num_inports, self.num_outports, True)
self.start_time = datetime.now()
alsaseq.start()
log.debug("ALSA sequencer started")
alsafd = alsaseq.fd()
while not self.join_req:
fds_ready = select.select([alsafd], [], [], 0.1)
if alsaseq.inputpending():
raw_event = alsaseq.input()
new_event = self.create_event(raw_event)
self.dispatch_event(new_event)
def midi_read(self):
try:
while alsaseq.inputpending():
event = alsaseq.input()
chan = event[7][0]
if event[0]==alsaseq.SND_SEQ_EVENT_CONTROLLER and chan==self.zyngine.get_midi_chan() and self.active_screen=='control':
ctrl = event[7][4]
val = event[7][5]
#print ("MIDI CTRL " + str(ctrl) + ", CH" + str(chan) + " => " + str(val))
if ctrl in self.screens['control'].zcontroller_map.keys():
self.screens['control'].zcontroller_map[ctrl].set_value(val,True)
except Exception as err:
print("ERROR: zynthian_gui.midi_read() => %s" % err)
if self.polling:
top.after(40, self.midi_read)
def run(clientName, inPorts, outPorts, controller):
curScreen = controller
alsaseq.client(clientName, inPorts, outPorts, True)
initd = False
while True:
if not alsaseq.inputpending():
time.sleep(0.001)
continue
val = alsaseq.input()
mtype = val[0]
if mtype == _MIDI_CONNECT:
__devi = val[7][0]
__devo = val[7][2]
initd = True
elif not initd:
continue
elif mtype == _MIDI_CC:
but = val[7][4]
vel = val[7][5]
r,c = __b2idx(but)
if c == 9:
but = PLAY
if vel == 0:
curScreen.onButtonUp(but, 9 - r, c)
else:
curScreen.onButtonDown(but, vel, 9 - r, c)
elif mtype == _MIDI_ON:
but = val[7][1]
vel = val[7][2]
r,c = __b2idx(but)
if vel == 0:
curScreen.onButtonUp(but, 9 - r, c)
else:
curScreen.onButtonDown(GRID, vel, 9 - r, c)
elif mtype == _MIDI_OFF:
but = val[7][1]
vel = val[7][2]
r,c = __b2idx(but)
curScreen.onButtonUp(GRID, 9 - r, c)
elif mtype == _MIDI_MAFTER:
vel = val[7][5]
curScreen.onMonoAftertouch(vel)
elif mtype == _MIDI_PAFTER:
but = val[7][1]
vel = val[7][2]
r,c = __b2idx(but)
curScreen.onPolyAftertouch(9 - r, c, vel)
def run(self):
import select
alsaseq.client(appinfo.name, self.num_inports, self.num_outports, True)
self.start_time = datetime.now()
alsaseq.start()
log.debug("ALSA sequencer started")
alsafd = alsaseq.fd()
while not self.join_req:
fds_ready = select.select([alsafd], [], [], 0.1)
if alsaseq.inputpending():
raw_event = alsaseq.input()
new_event = self.create_event(raw_event)
self.dispatch_event(new_event)
alsaseq.stop()
alsaseq.close()
def run(self):
print ("starting alsa listener")
while not sync.terminate.isSet():
if alsaseq.inputpending():
now = time.time()
event = alsaseq.input()
evtype = event[0]
pitch = event[7][1]
if evtype == alsaseq.SND_SEQ_EVENT_NOTEON:
sync.putEvent(now)
else:
time.sleep(0.001)
continue
else:
time.sleep(0.001)
continue
print ("stopping alsa listener")
def Poll(self):
if back_end == 'pypm':
return self.mDevIn.Poll()
elif back_end == 'alsaseq':
return alsaseq.inputpending()
elif back_end == 'rtmidi':
if self.rtmidi_pkt_read_flag:
self.rtmidi_pkt = None
if not self.rtmidi_pkt:
self.rtmidi_pkt = self.mDevIn.get_message()
self.rtmidi_pkt_read_flag = False
if self.rtmidi_pkt != None:
return True
elif back_end == 'mididings':
print('mididings not implemented')
return False
return False
def run(self):
print "starting alsa listener"
while not sync.terminate.isSet():
if alsaseq.inputpending():
event = alsaseq.input()
evtype = event[0]
pitch = event[7][1]
if evtype == alsaseq.SND_SEQ_EVENT_NOTEON:
cmd = (PSH_NOTE, pitch)
elif evtype == alsaseq.SND_SEQ_EVENT_NOTEOFF:
cmd = (POP_NOTE, pitch)
elif evtype == alsaseq.SND_SEQ_EVENT_START:
cmd = (TRP_START, None)
elif evtype == alsaseq.SND_SEQ_EVENT_STOP:
cmd = (TRP_STOP, None)
elif evtype == alsaseq.SND_SEQ_EVENT_CLOCK:
cmd = (TRP_TICK, None)
else:
continue
sync.putCommand(cmd)
else:
time.sleep(0.005)
continue
print "stopping alsa listener"
def retrieveinput():
"Retrieve received events."
global incoming, waitingforsplit, split
p = select.poll()
p.register(fd, select.POLLIN)
while vivo:
p.poll(5000)
while alsaseq.inputpending():
entrante = alsaseq.input()
nota = entrante[7][1]
type = entrante[0]
if type in rechazados:
continue # discard obnoxious Clavinova events
elif type == alsaseq.SND_SEQ_EVENT_ECHO:
drums(ritmos[nritmo], tempo, compases)
continue
ev = alsamidi.modifyevent(entrante, ch=1)
if waitingforsplit:
split = nota
waitingforsplit = 0
print(nota)
continue # discard note
if not split:
alsaseq.output(entrante)
alsaseq.output(ev)
incoming.append(ev)
incoming.append(entrante)
elif nota > split:
alsaseq.output(entrante)
incoming.append(entrante)
else:
alsaseq.output(ev)
incoming.append(ev)
print(len(incoming), "incoming")
print("Ending retrieveinput()")
def retrieveinput():
'Retrieve received events.'
global incoming, waitingforsplit, split
p = select.poll()
p.register(fd, select.POLLIN)
while vivo:
p.poll(5000)
while alsaseq.inputpending():
entrante = alsaseq.input()
nota = entrante[7][1]
type = entrante[0]
if type in rechazados:
continue # discard obnoxious Clavinova events
elif type == alsaseq.SND_SEQ_EVENT_ECHO:
drums(ritmos[nritmo], tempo, compases)
continue
ev = alsamidi.modifyevent(entrante, ch=1)
if waitingforsplit:
split = nota
waitingforsplit = 0
print(nota)
continue # discard note
if not split:
alsaseq.output(entrante)
alsaseq.output(ev)
incoming.append(ev)
incoming.append(entrante)
elif nota > split:
alsaseq.output(entrante)
incoming.append(entrante)
else:
alsaseq.output(ev)
incoming.append(ev)
print(len(incoming), 'incoming')
print('Ending retrieveinput()')
#!/usr/bin/env python3
# amiditimer.py - Tom Clayton
# Connect input and output to alsa midi streams and this program will
# send a message out and time how long it takes for it to return.
import alsaseq
import sys
alsaseq.client('Midi Timer', 1, 1, True)
# alsaseq event:
# (type, flags, tag, queue, time stamp, source, destination, data)
# data = (channel, note, velocity, start, duration)
out_event = (6, 1, 0, 1, (0, 0), (0, 0), (0, 0), (0, 60, 127, 0, 0))
input("Midi Timer, connect then hit enter to start.")
alsaseq.output(out_event)
alsaseq.start()
while True:
if alsaseq.inputpending():
event = alsaseq.input()
if event[0] == 6:
print(event[4][1] / 1000000, " ms")
break
def Poll(self):
' returns True if input event pending, otherwise False if nothing '
return alsaseq.inputpending()
events = []
EV_KEYDOWN = 6
EV_KEYUP = 7
s = serial.Serial("/dev/ttyUSB0", 115200)
ch = 1
def sendmsg(chan,note,vel):
print "msg going",chan,note
onoff = 0x40 if note >= 0 else 0
note = abs(note)
s.write(chr(0x80 | chan | onoff))
s.write(chr(0x60 | (note >> 4)))
s.write(chr(0x50 | (note & 0xf)))
s.write(chr(0x20 | (vel >> 4)))
s.write(chr(0x10 | (vel & 0xf)))
while 1:
if alsaseq.inputpending():
ch = int(open("ch.txt", "r").read())
event = alsaseq.input()
evtype = event[0]
if evtype == EV_KEYDOWN:
sendmsg(ch, event[7][1], event[7][2])
elif evtype == EV_KEYUP:
sendmsg(ch, -event[7][1], event[7][2])
else:
print event
