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# sync.py
"""
This module is an integeral part of the program
MMA - Musical Midi Accompaniment.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Bob van der Poel <bob@mellowood.ca>
Functions/variables for the sync stuff.
Sync START puts a midi on/off event at the start of every track,
END pads all tracks out to the same length. This is a "be kind"
process for certain synths and notation converters.
"""
from MMA.common import *
import MMA.debug
synctick = 0 # flag, set if we want a tick on all tracks at offset 0
endsync = 0 # flag, set if we want a eof sync
syncTone = [80, 90] # tone/velocity for -0 option. Changable from setSyncTone
def synchronize(ln):
""" Set synchronization in the MIDI. This is called by the SYNCRONIZE option
and the command line -0 and -1 options.
"""
global synctick, endsync
if not ln:
error("SYNCHRONIZE: requires args END and/or START.")
for a in ln:
if a.upper() == 'END':
endsync = 1
elif a.upper() == 'START':
synctick = 1
else:
error("SYNCHRONIZE: expecting END or START")
def setSyncTone(ln):
""" Parser routine, sets tone/velocity for the -0 sync tone. """
global syncTone
notopts, ln = opt2pair(ln)
if notopts or not ln:
error("SetSyncTone: Expecting option pairs: Tone=xx Velocity=xx Volume=xx.")
for cmd, opt in ln:
cmd = cmd.upper()
if cmd == "TONE":
t = stoi(opt)
if t < 0 or t > 127:
error("SetSyncTone: Tone must be 0..127, not %s." % t)
syncTone[0] = t
elif cmd in ("VELOCITY", "VOLUME"):
t = stoi(opt)
if t < 1 or t > 127:
error("SetSyncTone: Velocity must be 1..127, not %s." % t)
syncTone[1] = t
else:
error("SetSyncTone: Expecting options: Tone, Velocity, Volume. Not %s"
% cmd)
if MMA.debug.debug:
dPrint("SetSyncTone: Tone=%s, Velocity=%s" % tuple(syncTone))
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