89 lines
2.1 KiB
Python
89 lines
2.1 KiB
Python
#!/usr/bin/env python3
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Dump the contents of a GENMIDI lump into separate .sbi instrument files,
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# and output a config to stdout.
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#
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import os
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import sys
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import genmidi
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import sbi_file
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import midi
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import sbi_file
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def is_null_voice(voice_data):
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for f in sbi_file.FIELDS:
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if voice_data[f] != 0:
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return False
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return True
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def instr_to_str_def(filename, filename2, instr):
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if is_null_voice(instr.voice1):
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return "NullInstrument"
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args = ['"%s"' % filename]
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if instr.voice2 is not None:
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args.append('"%s"' % filename2)
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if instr.fixed_note is not None:
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args.append("note=%s" % midi.def_for_note(instr.fixed_note))
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if instr.offset1 != 0:
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args.append("off1=%i" % instr.offset1)
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if instr.offset2 != 0:
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args.append("off2=%i" % instr.offset2)
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return "Instrument(%s)" % (", ".join(args))
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def print_instr_def(filename, filename2, instr):
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print("\t%s," % instr_to_str_def(filename, filename2, instr))
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def dump_instrument(filename, filename2, instr):
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if is_null_voice(instr.voice1):
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return
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sbi_file.write(os.path.join("instruments", filename), instr.voice1)
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if instr.voice2 is not None:
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sbi_file.write(os.path.join("instruments", filename2), instr.voice2)
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if len(sys.argv) != 2:
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sys.stderr.write("Usage: %s <filename>\n" % sys.argv[0])
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sys.exit(-1)
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instruments = genmidi.read(sys.argv[1])
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main_instrs = instruments[0:128]
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percussion = instruments[128:]
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print("INSTRUMENTS = [")
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for i in range(len(main_instrs)):
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instr = main_instrs[i]
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filename = "instr%03i.sbi" % (i + 1)
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filename2 = "instr%03i-2.sbi" % (i + 1)
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dump_instrument(filename, filename2, instr)
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print_instr_def(filename, filename2, instr)
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print("]")
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print("")
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print("PERCUSSION = [")
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for i in range(len(percussion)):
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instr = percussion[i]
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filename = "perc%02i.sbi" % (i + 35)
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filename2 = "perc%02i-2.sbi" % (i + 35)
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dump_instrument(filename, filename2, instr)
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print_instr_def(filename, filename2, instr)
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print("]")
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