def _start_backend():
global _TheBackend
if _TheBackend is None:
_TheBackend = _mididings.create_backend(
_setup.get_config('backend'), _setup.get_config('client_name'),
_setup._in_portnames, _setup._out_portnames)
if _TheBackend:
_TheBackend.connect_ports(_setup._in_port_connections,
_setup._out_port_connections)
def _start_backend():
global _TheBackend
if _TheBackend is None:
_TheBackend = _mididings.create_backend(
_setup.get_config('backend'),
_setup.get_config('client_name'),
_setup._in_portnames,
_setup._out_portnames
)
if _TheBackend:
_TheBackend.connect_ports(_setup._in_port_connections,
_setup._out_port_connections)
def run(self):
self._quit = _threading.Event()
# delay before actually sending any midi data (give qjackctl
# patchbay time to react...)
self._start_delay()
self._call_hooks('on_start')
initial_scene, initial_subscene = \
self._parse_scene_number(_setup.get_config('initial_scene'))
# start the actual event processing
self.start(initial_scene, initial_subscene)
try:
# wait() with no timeout also blocks KeyboardInterrupt, but
# a very long timeout doesn't. weird...
while not self._quit.isSet():
self._quit.wait(86400)
except KeyboardInterrupt:
pass
finally:
self._call_hooks('on_exit')
global _TheEngine
_TheEngine = None
def _start_delay(self):
delay = _setup.get_config('start_delay')
if delay is not None:
if delay > 0:
_time.sleep(delay)
else:
raw_input("press enter to start midi processing...")
def note_number(note, allow_end=False):
"""
note_number(note)
Convert note name to note number.
:param note:
any valid :ref:`note description <notes>` (name or number).
:return:
MIDI note number.
"""
if isinstance(note, int):
r = note
elif isinstance(note, str):
note = note.lower()
# find first digit
for i in range(len(note)):
if note[i].isdigit() or note[i] == '-':
break
try:
name = note[:i]
octave = int(note[i:])
r = (_NOTE_NUMBERS[name] +
(octave + _setup.get_config('octave_offset')) * 12)
except Exception:
raise ValueError("invalid note name '%s'" % note)
else:
raise TypeError("note must be an integer or string")
end = 128 if not allow_end else 129
if not (0 <= r < end):
raise ValueError("note number %d is out of range" % r)
return r
def run(self):
self._quit = _threading.Event()
# delay before actually sending any midi data (give qjackctl
# patchbay time to react...)
self._start_delay()
self._call_hooks('on_start')
initial_scene, initial_subscene = \
self._parse_scene_number(_setup.get_config('initial_scene'))
# start the actual event processing
self.start(initial_scene, initial_subscene)
try:
# wait() with no timeout also blocks KeyboardInterrupt, but
# a very long timeout doesn't. weird...
while not self._quit.isSet():
self._quit.wait(86400)
except KeyboardInterrupt:
pass
finally:
self._call_hooks('on_exit')
global _TheEngine
_TheEngine = None
def _start_delay(self):
delay = _setup.get_config('start_delay')
if delay is not None:
if delay > 0:
_time.sleep(delay)
else:
raw_input("press enter to start midi processing...")
def run_patch(self, patch, events):
"""
Run the given events through the given patch, return the list of
resulting events.
"""
r = self.run_scenes({setup.get_config('data_offset'): patch}, events)
return list(itertools.chain(*r))
def run_patch(self, patch, events):
"""
Run the given events through the given patch, return the list of
resulting events.
"""
r = self.run_scenes({ setup.get_config('data_offset'): patch }, events)
return list(itertools.chain(*r))
def note_number(note, allow_end=False):
"""
note_number(note)
Convert note name to note number.
:param note:
any valid :ref:`note description <notes>` (name or number).
:return:
MIDI note number.
"""
if isinstance(note, int):
r = note
elif isinstance(note, str):
note = note.lower()
# find first digit
for i in range(len(note)):
if note[i].isdigit() or note[i] == '-':
break
try:
name = note[:i]
octave = int(note[i:])
r = (_NOTE_NUMBERS[name] +
(octave + _setup.get_config('octave_offset')) * 12)
except Exception:
raise ValueError("invalid note name '%s'" % note)
else:
raise TypeError("note must be an integer or string")
end = 128 if not allow_end else 129
if not (0 <= r < end):
raise ValueError("note number %d is out of range" % r)
return r
def make_event(self, *args, **kwargs):
"""
Create a new MIDI event. Attributes can be specified in args or
kwargs, unspecified attributes are filled with random values.
"""
type, port, channel, data1, data2, sysex = \
itertools.islice(itertools.chain(args, itertools.repeat(None)), 6)
for k, v in kwargs.items():
if k == 'type': type = v
if k == 'port': port = v
elif k == 'channel': channel = v
elif k in ('data1', 'note', 'ctrl'): data1 = v
elif k in ('data2', 'velocity', 'value'): data2 = v
elif k == 'program': data2 = v - setup.get_config('data_offset')
elif k == 'sysex': sysex = v
if type is None:
if channel is None:
type = random.choice(
list(set(constants._EVENT_TYPES.values()) - set([DUMMY])))
else:
type = random.choice([
NOTEON, NOTEOFF, CTRL, PITCHBEND, AFTERTOUCH,
POLY_AFTERTOUCH, PROGRAM
])
elif type == NOTE:
type = random.choice([NOTEON, NOTEOFF])
elif misc.issequence(type):
type = random.choice(type)
if port is None:
port = random.randrange(0, 42) + setup.get_config('data_offset')
if channel is None:
channel = random.randrange(0, 16) + setup.get_config('data_offset')
if data1 is None:
data1 = random.randrange(0, 128)
if data2 is None:
data2 = (random.randrange(1, 128) if type == NOTEON else
0 if type == NOTEOFF else random.randrange(0, 128))
if type == SYSEX and sysex is None:
sysex = [0xf0] + [
random.randrange(0, 128) for n in range(random.randrange(1024))
] + [0xf7]
return MidiEvent(type, port, channel, data1, data2, sysex)
def actual(n):
"""
Subtract current data offset to get the "real" value used on the C++ side.
"""
if isinstance(n, NoDataOffset):
return int(n)
else:
return n - _setup.get_config('data_offset')
def actual(n):
"""
Subtract current data offset to get the "real" value used on the C++ side.
"""
if isinstance(n, NoDataOffset):
return int(n)
else:
return n - _setup.get_config('data_offset')
def __init__(self):
_start_backend()
verbose = not _setup.get_config('silent')
# initialize C++ base class
_mididings.Engine.__init__(self, _TheBackend, verbose)
self._scenes = {}
def __init__(self):
_start_backend()
verbose = not _setup.get_config('silent')
# initialize C++ base class
_mididings.Engine.__init__(self, _TheBackend, verbose)
self._scenes = {}
def make_event(self, *args, **kwargs):
"""
Create a new MIDI event. Attributes can be specified in args or
kwargs, unspecified attributes are filled with random values.
"""
type, port, channel, data1, data2, sysex = \
itertools.islice(itertools.chain(args, itertools.repeat(None)), 6)
for k, v in kwargs.items():
if k == 'type': type = v
if k == 'port': port = v
elif k == 'channel': channel = v
elif k in ('data1', 'note', 'ctrl'): data1 = v
elif k in ('data2', 'velocity', 'value'): data2 = v
elif k == 'program': data2 = v - setup.get_config('data_offset')
elif k == 'sysex': sysex = v
if type is None:
if channel is None:
type = random.choice(list(set(constants._EVENT_TYPES.values())
- set([DUMMY])))
else:
type = random.choice([NOTEON, NOTEOFF, CTRL, PITCHBEND,
AFTERTOUCH, POLY_AFTERTOUCH, PROGRAM])
elif type == NOTE:
type = random.choice([NOTEON, NOTEOFF])
elif misc.issequence(type):
type = random.choice(type)
if port is None:
port = random.randrange(0, 42) + setup.get_config('data_offset')
if channel is None:
channel = random.randrange(0, 16) + setup.get_config('data_offset')
if data1 is None:
data1 = random.randrange(0, 128)
if data2 is None:
data2 = (random.randrange(1, 128) if type == NOTEON
else 0 if type == NOTEOFF
else random.randrange(0, 128))
if type == SYSEX and sysex is None:
sysex = [0xf0] + [random.randrange(0, 128)
for n in range(random.randrange(1024))] + [0xf7]
return MidiEvent(type, port, channel, data1, data2, sysex)
def get_client_id():
"""
Return client id
"""
if _setup.get_config('backend') == 'alsa':
return _TheEngine().get_client_id()
uuid = _TheEngine().get_client_uuid()
if uuid.isdigit():
return int(uuid)
return uuid
def send_config(self):
for p in self.notify_ports:
# send data offset
_liblo.send(p, '/mididings/data_offset',
_setup.get_config('data_offset'))
# send list of scenes
_liblo.send(p, '/mididings/begin_scenes')
s = _engine.scenes()
for n in sorted(s.keys()):
_liblo.send(p, '/mididings/add_scene', n, s[n][0], *s[n][1])
_liblo.send(p, '/mididings/end_scenes')
def send_config(self):
for p in self.notify_ports:
# send data offset
_liblo.send(p, '/mididings/data_offset',
_setup.get_config('data_offset'))
# send list of scenes
_liblo.send(p, '/mididings/begin_scenes')
s = _engine.scenes()
for n in sorted(s.keys()):
_liblo.send(p, '/mididings/add_scene', n, s[n][0], *s[n][1])
_liblo.send(p, '/mididings/end_scenes')
def note_name(note):
"""
Get note name from note number.
:param note:
a MIDI note number.
:return:
note name as a string.
"""
if not isinstance(note, int):
raise TypeError("note must be an integer")
return _NOTE_NAMES[note % 12] + str((note // 12) -
_setup.get_config('octave_offset'))
def note_name(note):
"""
Get note name from note number.
:param note:
a MIDI note number.
:return:
note name as a string.
"""
if not isinstance(note, int):
raise TypeError("note must be an integer")
return _NOTE_NAMES[note % 12] + str(
(note // 12) - _setup.get_config('octave_offset'))
def wrapper(self, f, *args, **kwargs):
# XXX: avoid circular import
from mididings.setup import get_config
if (not (hasattr(f, '_already_used') and f._already_used) and
not get_config('silent')):
if self.replacement:
print("%s() is deprecated, please use %s() instead" %
(f.__name__, self.replacement))
else:
print("%s() is deprecated" % f.__name__)
f._already_used = True
return f(*args, **kwargs)
def scene_switch_callback(self, scene, subscene):
# scene and subscene parameters are the actual numbers without offset!
if scene == -1:
# no scene specified, use current
scene = _mididings.Engine.current_scene(self)
if subscene == -1:
# no subscene specified, use first
subscene = 0
# save actual subscene index
subscene_index = subscene
# add data offset to scene/subscene numbers
scene = _util.offset(scene)
subscene = _util.offset(subscene)
found = (scene in self._scenes
and (not subscene_index
or subscene_index < len(self._scenes[scene][1])))
# get string representation of scene/subscene number
if (subscene_index
or (scene in self._scenes and len(self._scenes[scene][1]))):
number = "%d.%d" % (scene, subscene)
else:
number = str(scene)
if not _setup.get_config('silent'):
if found:
# get scene/subscene name
scene_data = self._scenes[scene]
if scene_data[1]:
name = "%s - %s" % (scene_data[0],
scene_data[1][subscene_index])
else:
name = scene_data[0]
scene_desc = (("%s: %s" %
(number, name)) if name else str(number))
print("switching to scene %s" % scene_desc)
else:
print("no such scene: %s" % number)
if found:
self._call_hooks('on_switch_scene', scene, subscene)
def scene_switch_callback(self, scene, subscene):
# scene and subscene parameters are the actual numbers without offset!
if scene == -1:
# no scene specified, use current
scene = _mididings.Engine.current_scene(self)
if subscene == -1:
# no subscene specified, use first
subscene = 0
# save actual subscene index
subscene_index = subscene
# add data offset to scene/subscene numbers
scene = _util.offset(scene)
subscene = _util.offset(subscene)
found = (scene in self._scenes and
(not subscene_index or
subscene_index < len(self._scenes[scene][1])))
# get string representation of scene/subscene number
if (subscene_index or
(scene in self._scenes and len(self._scenes[scene][1]))):
number = "%d.%d" % (scene, subscene)
else:
number = str(scene)
if not _setup.get_config('silent'):
if found:
# get scene/subscene name
scene_data = self._scenes[scene]
if scene_data[1]:
name = "%s - %s" % (scene_data[0],
scene_data[1][subscene_index])
else:
name = scene_data[0]
scene_desc = (("%s: %s" % (number, name)) if name
else str(number))
print("switching to scene %s" % scene_desc)
else:
print("no such scene: %s" % number)
if found:
self._call_hooks('on_switch_scene', scene, subscene)
def offset(n):
"""
Add current data offset.
"""
return n + _setup.get_config('data_offset')
def check_patch(self, patch, d):
"""
Test the given patch. d must be a mapping from events to the expected
list of resulting events.
"""
self.check_scenes({ setup.get_config('data_offset'): patch }, d)
def check_patch(self, patch, d):
"""
Test the given patch. d must be a mapping from events to the expected
list of resulting events.
"""
self.check_scenes({setup.get_config('data_offset'): patch}, d)
def offset(n):
"""
Add current data offset.
"""
return n + _setup.get_config('data_offset')
