class Twister(object):
def __init__(self):
args = _parse_args()
if not args.port:
print("ERROR: Please use -p option to specify device midi port.")
sys.exit(1)
# connect with the launchpad
print("Connecting with launchpad")
self.launchpad = Launchpad(args.port, self.process_midi_event)
# load the plugins
print("Loading plugins using config file: %s" % args.configfile)
load_plugins(self.launchpad, args.configfile)
# start reading midi events
self.launchpad.read_midi_event()
def process_midi_event(self, data):
if data is None:
return
# for note events there is note and velocity,
# for control events those are called param and value
# in alsa, but we just call them note and velocity also
midi_type, channel, note, velocity = data
plugin = self.launchpad.get_plugin(note)
if not plugin:
return
# figure out which callback to call
if midi_type == Launchpad.TYPE_NOTEON and velocity == 0:
plugin.pad_up_callback(note - plugin.position)
elif midi_type == Launchpad.TYPE_NOTEON:
plugin.pad_down_callback(note - plugin.position)
elif midi_type == Launchpad.TYPE_CONTROL:
launchpad.shutdown()
reactor.shutdown()
class Twister(object):
def __init__(self):
args = _parse_args()
if not args.port:
print("ERROR: Please use -p option to specify device midi port.")
sys.exit(1)
# connect with the launchpad
print("Connecting with launchpad")
self.launchpad = Launchpad(args.port, self.process_midi_event)
# load the plugins
print("Loading plugins using config file: %s" % args.configfile)
load_plugins(self.launchpad, args.configfile)
# start reading midi events
self.launchpad.read_midi_event()
def process_midi_event(self, data):
if data is None:
return
# for note events there is note and velocity,
# for control events those are called param and value
# in alsa, but we just call them note and velocity also
midi_type, channel, note, velocity = data
plugin = self.launchpad.get_plugin(note)
if not plugin:
return
# figure out which callback to call
if midi_type == Launchpad.TYPE_NOTEON and velocity == 0:
plugin.pad_up_callback(note - plugin.position)
elif midi_type == Launchpad.TYPE_NOTEON:
plugin.pad_down_callback(note - plugin.position)
elif midi_type == Launchpad.TYPE_CONTROL:
launchpad.shutdown()
reactor.shutdown()
