mirror of
https://github.com/microtherion/VocalEasel.git
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333 lines
8.3 KiB
Python
333 lines
8.3 KiB
Python
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# main.py
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"""
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The program "MMA - Musical Midi Accompaniment" and the associated
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modules distributed with it are protected by copyright.
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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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"""
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import os
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import gbl
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from MMA.common import *
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import MMA.midi
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import MMA.docs
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import MMA.parse
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from MMA.file import locFile
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from MMA.lyric import lyric
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import MMA.options
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########################################
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########################################
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# This is the program mainline. It is called/executed
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# exactly once from a call in the stub program mma.py.
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###########################
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# Get our command line stuff
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MMA.options.opts()
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"""
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LibPath and IncPath are set in MMA.globals. Debug setting isn't set
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when the default is done.
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"""
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if gbl.debug:
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print "Initialization has set LibPath set to", gbl.libPath
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print "Initialization has set IncPath set to", gbl.incPath
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#######################################
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# Set up initial meta track stuff. Track 0 == meta
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m = gbl.mtrks[0] = MMA.midi.Mtrk(0)
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m.addText(0, "Created by MMA.")
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m.addTrkName(0, 'MetaTrack')
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m.addTempo(0, gbl.tempo)
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MMA.parse.setTimeSig(['4','4']) # most stdlib files will override this
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#####################################
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# Read an RC file. All found files are processed.
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docOption = gbl.docs # Disable doc printing for RC file
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gbl.docs = 0
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rcread=0
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rcfiles = ('mmarc', 'c:\\mma\\mmarc', '~/.mmarc', '/usr/local/etc/mmarc', '/etc/mmarc' )
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if gbl.mmaRC:
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rcfiles = [ gbl.mmaRC ]
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for i in rcfiles:
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f = locFile(i, None)
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if f:
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if gbl.showrun:
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print "Reading RC file '%s'" % f
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MMA.parse.parseFile(f)
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rcread+=1
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break
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else:
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if gbl.mmaRC:
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error("Specified init file '%s' not found" % gbl.mmaRC)
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if not rcread:
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gbl.lineno = -1
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warning("No RC file was found or processed")
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gbl.docs = docOption # Restore doc options
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################################################
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# Update the library database file(s) (-g option)
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# Note: This needs to be here, after reading of RC files
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if gbl.makeGrvDefs:
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if gbl.infile:
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error("No filename is permitted with the -g option")
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from MMA.auto import libUpdate
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libUpdate() # update and EXIT
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################################
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# We need an input file for anything after this point.
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if not gbl.infile:
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MMA.options.usage("No input filename specified.")
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# Add filename to meta track.
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gbl.mtrks[0].addText(0, "Input filename: %s" % gbl.infile)
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################################
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# Just extract docs (-Dx) to stdout.
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if docOption:
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f=locFile(gbl.infile, None)
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if not f:
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error("File '%s' not found" % gbl.infile)
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MMA.parse.parseFile(f)
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sys.exit(0)
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#########################################################
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# These cmdline options override settings in RC files
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if gbl.cmdSMF:
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gbl.lineno = -1
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MMA.parse.setMidiFileType(['SMF=%s' % gbl.cmdSMF])
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##########################################
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# Create the output filename.
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# If outfile was specified on cmd line then leave it alone.
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# Otherwise ...
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# 1. strip off the extension if it is .mma,
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# 2. append .mid
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if gbl.outfile:
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outfile = gbl.outfile
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else:
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outfile, ext = os.path.splitext(gbl.infile)
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if ext != gbl.ext:
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outfile=gbl.infile
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outfile += '.mid'
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outfile=os.path.expanduser(outfile)
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################################################
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# Read/process files....
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# First the mmastart files
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for f in gbl.mmaStart:
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fn = locFile(f, gbl.incPath)
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if not fn:
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warning("MmaStart file '%s' not found/processed" % fn)
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MMA.parse.parseFile(fn)
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gbl.lineno = -1
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# The song file specified on the command line
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f = locFile(gbl.infile, None)
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if not f:
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gbl.lineno = -1
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error("Input file '%s' not found" % gbl.infile)
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MMA.parse.parseFile(f)
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# Finally, the mmaend files
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for f in gbl.mmaEnd:
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fn = locFile(f, None)
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if not fn:
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warning("MmaEnd file '%s' not found/processed" % f)
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MMA.parse.parseFile(fn)
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#################################################
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# Just display the channel assignments (-c) and exit...
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if gbl.chshow:
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print "\nFile '%s' parsed, but no MIDI file produced!" % gbl.infile
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print
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print "Tracks allocated:"
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k=gbl.tnames.keys()
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k.sort()
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max=0
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for a in k + gbl.deletedTracks:
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if len(a)>max:
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max = len(a)
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max+=1
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wrap=0
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for a in k:
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wrap += max
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if wrap>60:
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wrap = max
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print
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print " %-*s" %( max, a),
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print
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print
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if gbl.deletedTracks:
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print "Deleted Tracks:"
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wrap=0
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for a in gbl.deletedTracks:
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wrap += max
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if wrap>60:
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wrap=max
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print
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print " %-*s" %( max,a),
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print
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print
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print "Channel assignments:"
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for c, n in sorted(gbl.midiAssigns.items()):
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if n:
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wrap = 3
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print " %2s" % c,
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for nn in n:
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wrap += max
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if wrap>63:
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print "\n ",
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wrap=max+3
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print "%-*s" % (max,nn),
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print
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print
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sys.exit(0)
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####################################
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# Dry run, no output
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if gbl.noOutput:
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warning( "Input file parsed successfully. No midi file generated")
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sys.exit(0)
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##############################
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# Create the output (MIDI) file
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gbl.lineno=-1 # disable line nums for error/warning
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""" We fix the outPath now. This lets you set outpath in the song file.
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The filename "outfile" was created above. It is either the input filename
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with '.mma' changed to '.mid' OR if -f<FILE> was used then it's just <FILE>.
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If any of the following is true we skip inserting the outputpath into the
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filename:
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- if outfile starts with a '/'
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- if outPath was not set
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- if -f was used
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Next, the outPath is inserted into the filename. If outPath starts with
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a ".", "/" or "\ " then it is inserted at the start of the path;
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otherwise it is inserted before the filename portion.
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"""
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if (not outfile.startswith('/')) and gbl.outPath and (not gbl.outfile):
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if gbl.outPath[0] in '.\\/':
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outfile = "%s/%s" % (gbl.outPath, outfile)
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else:
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head, tail = os.path.split(outfile)
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outfile = "%s/%s/%s" % (head, gbl.outPath, tail)
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fileExist = os.path.exists(outfile)
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""" Check if any pending midi events are still around. Mostly
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this will be a DRUM event which was assigned to the 'DRUM'
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track, but no DRUM track was used, just DRUM-xx tracks used.
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"""
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for n in gbl.tnames.values():
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if n.channel:
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n.doMidiClear()
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n.clearPending()
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if n.riff:
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warning("%s has pending Riff(s)" % n.name)
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""" Check all the tracks and find total number used. When
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initializing each track (class) we made an initial entry
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in the track at offset 0 for the track name, etc. So, if the
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track only has one entry we can safely skip the entire track.
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"""
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trackCount=1 # account for meta track
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for n in sorted(gbl.mtrks.keys())[1:]: # check all but 0 (meta)
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if len(gbl.mtrks[n].miditrk) > 1:
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trackCount += 1
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if trackCount == 1: # only meta track
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if fileExist:
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print
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print "No data created. Did you remember to set a groove/sequence?"
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if fileExist:
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print "Existing file '%s' has not been modified." % outfile
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sys.exit(1)
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lyric.leftovers()
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if fileExist:
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print "Overwriting existing",
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else:
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print "Creating new",
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print "midi file (%s bars): '%s'" % (gbl.barNum, outfile)
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try:
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out = file(outfile, 'wb')
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except:
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error("Can't open file '%s' for writing" % outfile)
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MMA.midi.writeTracks(out)
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out.close()
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if gbl.debug:
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print "Completed processing file '%s'." % outfile
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