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# 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()
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