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266 lines
6.6 KiB
Python
266 lines
6.6 KiB
Python
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# translate.py
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"""
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This module is an integeral part of the program
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MMA - Musical Midi Accompaniment.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Bob van der Poel <bob@mellowood.ca>
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This module handles voice name translations.
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"""
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import MMA.midiC
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import gbl
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from MMA.common import *
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""" Translation table for VOICE. This is ONLY used when a voice is set
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from the VOICE command. If a translation exists the translation is
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substituted.
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"""
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class Vtable:
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def __init__(self):
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self.table = {}
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def retlist(self):
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l=[]
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for n in sorted(self.table.keys()):
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l.append("%s=%s" % (n.title(), self.table[n]))
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return ' '.join(l)
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def set(self, ln):
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""" Set a name/alias for voice translation, called from parser. """
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if not ln:
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self.table = {}
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if gbl.debug:
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print "Voice Translaion table reset."
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return
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for l in ln:
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l=l.upper()
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if l.count('=') != 1:
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error("Each translation pair must be in the format Voice=Alias")
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v,a = l.split('=')
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self.table[v] = a
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if gbl.debug:
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print "Voice Translations: ",
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for l in ln:
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print l,
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print
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def get(self, name):
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""" Return a translation or original. """
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name=name.upper()
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try:
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return self.table[name]
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except KeyError:
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return name
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vtable=Vtable() # Create single class instance.
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""" This is just like the Vtable, but it is used for DRUM TONES. We use
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this translation when a TONE is set for a drum in setTone() and when a
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tone is selected in a Solo/Melody DRUM track.
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"""
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class Dtable:
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def __init__(self):
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self.table = {}
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def retlist(self):
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l=[]
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for n in sorted(self.table.keys()):
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l.append("%s=%s" % ( MMA.midiC.valueToDrum(n),
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MMA.midiC.valueToDrum(self.table[n])))
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return ' '.join(l)
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def set(self, ln):
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""" Set a name/alias for drum tone translation, called from parser. """
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if not ln:
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self.table = {}
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if gbl.debug:
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print "DrumTone Translaion table reset."
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return
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for l in ln:
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l=l.upper()
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if l.count('=') != 1:
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error("Each translation pair must be in the format Voice=Alias")
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v,a = l.split('=')
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v1=MMA.midiC.drumToValue(v)
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if v1<0:
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error("Drum Tone '%s' not defined." % v)
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a1=MMA.midiC.drumToValue(a)
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if a1<0:
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error("Drum Tone '%s' not defined." % a)
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self.table[v1] = a1
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if gbl.debug:
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print "DrumTone Translation: %s=%s" % \
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(MMA.midiC.valueToDrum(v), MMA.midiC.valueToDrum(a))
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def get(self, name):
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""" Return a translation or original. Note that this also does
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validation of 'name'. It is called from patDrum and patSolo.
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"""
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v=MMA.midiC.drumToValue(name)
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if v<0:
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error("Drum Tone '%s' not defined." % name)
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try:
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return self.table[v]
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except KeyError:
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return v
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dtable=Dtable()
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""" Volume adjustment. Again, similar to voice/tone translations,
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but this is for the volume. The table creates a percentage adjustment
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for tones/voices specified. When a TRACK VOLUME is set in
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MMApat.setVolume() the routine checks here for an adjustment.
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"""
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class VoiceVolTable:
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def __init__(self):
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self.table = {}
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def retlist(self):
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l=[]
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for n in sorted(self.table.keys()):
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l.append("%s=%s" % ( MMA.midiC.valueToInst(n), self.table[n]))
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return ' '.join(l)
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def set(self, ln):
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""" Set a name/alias for voice volume adjustment, called from parser. """
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if not ln:
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self.table = {}
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if gbl.debug:
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print "Voice Volume Adjustment table reset."
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return
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for l in ln:
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l=l.upper()
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if l.count('=') != 1:
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error("Each translation pair must be in the format Voice=Ajustment")
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v,a = l.split('=')
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v=MMA.midiC.instToValue(v)
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a=stoi(a)
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if a<1 or a>200:
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error("Voice volume adjustments must be in range 1 to 200, not %s" % a)
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self.table[v] = a/100.
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if gbl.debug:
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print "Voice Volume Adjustment: %s=%s" % (MMA.midiC.valueToInst(v), a)
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def get(self, v, vol):
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""" Return an adjusted value or original. """
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try:
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vol = int(vol * self.table[v])
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except KeyError:
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return vol
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voiceVolTable=VoiceVolTable()
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class DrumVolTable:
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def __init__(self):
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self.table = {}
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def retlist(self):
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l=[]
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for n in sorted(self.table.keys()):
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l.append("%s=%s" % ( MMA.midiC.valueToDrum(n), self.table[n]))
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return ' '.join(l)
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def set(self, ln):
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""" Set a name/alias for voice volume adjustment, called from parser. """
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if not ln:
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self.table = {}
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if gbl.debug:
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print "Drum Volume Adjustment table reset."
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return
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for l in ln:
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l=l.upper()
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if l.count('=') != 1:
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error("Each translation pair must be in the format Drum=Ajustment")
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v,a = l.split('=')
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v=MMA.midiC.instToValue(v)
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a=stoi(a)
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if a<1 or a>200:
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error("Drum volume adjustments must be in range 1 to 200, not %s" % a)
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self.table[v] = a/100.
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if gbl.debug:
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print "Drum Volume Adjustment: %s=%s" % (MMA.midiC.valueToDrum(v), a)
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def get(self, v, vol):
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""" Return an adjusted value or original. """
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try:
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vol = int(vol * self.table[v])
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except KeyError:
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return vol
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drumVolTable=DrumVolTable()
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