# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild from pkg_resources import parse_version from .kaitaistruct import __version__ as ks_version, KaitaiStruct, KaitaiStream, BytesIO import collections if parse_version(ks_version) < parse_version('0.7'): raise Exception("Incompatible Kaitai Struct Python API: 0.7 or later is required, but you have %s" % (ks_version)) class GenmidiOp2(KaitaiStruct): """GENMIDI.OP2 is a sound bank file used by players based on DMX sound library to play MIDI files with General MIDI instruments using OPL2 sound chip (which was commonly installed on popular AdLib and Sound Blaster sound cards). Major users of DMX sound library include: * Original Doom game engine (and games based on it: Heretic, Hexen, Strife, Chex Quest) * Raptor: Call of the Shadows .. seealso:: http://doom.wikia.com/wiki/GENMIDI - http://www.fit.vutbr.cz/~arnost/muslib/op2_form.zip """ SEQ_FIELDS = ["magic", "instruments", "instrument_names"] def __init__(self, _io, _parent=None, _root=None): self._io = _io self._parent = _parent self._root = _root if _root else self self._debug = collections.defaultdict(dict) def _read(self): self._debug['magic']['start'] = self._io.pos() self.magic = self._io.ensure_fixed_contents(b"\x23\x4F\x50\x4C\x5F\x49\x49\x23") self._debug['magic']['end'] = self._io.pos() self._debug['instruments']['start'] = self._io.pos() self.instruments = [None] * (175) for i in range(175): if not 'arr' in self._debug['instruments']: self._debug['instruments']['arr'] = [] self._debug['instruments']['arr'].append({'start': self._io.pos()}) _t_instruments = self._root.InstrumentEntry(self._io, self, self._root) _t_instruments._read() self.instruments[i] = _t_instruments self._debug['instruments']['arr'][i]['end'] = self._io.pos() self._debug['instruments']['end'] = self._io.pos() self._debug['instrument_names']['start'] = self._io.pos() self.instrument_names = [None] * (175) for i in range(175): if not 'arr' in self._debug['instrument_names']: self._debug['instrument_names']['arr'] = [] self._debug['instrument_names']['arr'].append({'start': self._io.pos()}) self.instrument_names[i] = (KaitaiStream.bytes_terminate(KaitaiStream.bytes_strip_right(self._io.read_bytes(32), 0), 0, False)).decode(u"ASCII") self._debug['instrument_names']['arr'][i]['end'] = self._io.pos() self._debug['instrument_names']['end'] = self._io.pos() class InstrumentEntry(KaitaiStruct): SEQ_FIELDS = ["flags", "finetune", "note", "instruments"] def __init__(self, _io, _parent=None, _root=None): self._io = _io self._parent = _parent self._root = _root if _root else self self._debug = collections.defaultdict(dict) def _read(self): self._debug['flags']['start'] = self._io.pos() self.flags = self._io.read_u2le() self._debug['flags']['end'] = self._io.pos() self._debug['finetune']['start'] = self._io.pos() self.finetune = self._io.read_u1() self._debug['finetune']['end'] = self._io.pos() self._debug['note']['start'] = self._io.pos() self.note = self._io.read_u1() self._debug['note']['end'] = self._io.pos() self._debug['instruments']['start'] = self._io.pos() self.instruments = [None] * (2) for i in range(2): if not 'arr' in self._debug['instruments']: self._debug['instruments']['arr'] = [] self._debug['instruments']['arr'].append({'start': self._io.pos()}) _t_instruments = self._root.Instrument(self._io, self, self._root) _t_instruments._read() self.instruments[i] = _t_instruments self._debug['instruments']['arr'][i]['end'] = self._io.pos() self._debug['instruments']['end'] = self._io.pos() class Instrument(KaitaiStruct): SEQ_FIELDS = ["op1", "feedback", "op2", "unused", "base_note"] def __init__(self, _io, _parent=None, _root=None): self._io = _io self._parent = _parent self._root = _root if _root else self self._debug = collections.defaultdict(dict) def _read(self): self._debug['op1']['start'] = self._io.pos() self.op1 = self._root.OpSettings(self._io, self, self._root) self.op1._read() self._debug['op1']['end'] = self._io.pos() self._debug['feedback']['start'] = self._io.pos() self.feedback = self._io.read_u1() self._debug['feedback']['end'] = self._io.pos() self._debug['op2']['start'] = self._io.pos() self.op2 = self._root.OpSettings(self._io, self, self._root) self.op2._read() self._debug['op2']['end'] = self._io.pos() self._debug['unused']['start'] = self._io.pos() self.unused = self._io.read_u1() self._debug['unused']['end'] = self._io.pos() self._debug['base_note']['start'] = self._io.pos() self.base_note = self._io.read_s2le() self._debug['base_note']['end'] = self._io.pos() class OpSettings(KaitaiStruct): """OPL2 settings for one operator (carrier or modulator) """ SEQ_FIELDS = ["trem_vibr", "att_dec", "sust_rel", "wave", "scale", "level"] def __init__(self, _io, _parent=None, _root=None): self._io = _io self._parent = _parent self._root = _root if _root else self self._debug = collections.defaultdict(dict) def _read(self): self._debug['trem_vibr']['start'] = self._io.pos() self.trem_vibr = self._io.read_u1() self._debug['trem_vibr']['end'] = self._io.pos() self._debug['att_dec']['start'] = self._io.pos() self.att_dec = self._io.read_u1() self._debug['att_dec']['end'] = self._io.pos() self._debug['sust_rel']['start'] = self._io.pos() self.sust_rel = self._io.read_u1() self._debug['sust_rel']['end'] = self._io.pos() self._debug['wave']['start'] = self._io.pos() self.wave = self._io.read_u1() self._debug['wave']['end'] = self._io.pos() self._debug['scale']['start'] = self._io.pos() self.scale = self._io.read_u1() self._debug['scale']['end'] = self._io.pos() self._debug['level']['start'] = self._io.pos() self.level = self._io.read_u1() self._debug['level']['end'] = self._io.pos()