diff options
| author | Andrew Lamoureux <andrew@vector35.com> | 2019-03-19 17:32:44 -0400 |
|---|---|---|
| committer | Rusty Wagner <rusty@vector35.com> | 2019-03-20 13:00:17 -0400 |
| commit | 24ead55316ac8497df5842caf4e1d51f2b799787 (patch) | |
| tree | 3dfdfae8a076445c9d24bf6d1b40e57f36ebf94a /python/examples/kaitai/genmidi_op2.py | |
| parent | 411acbaa4a1d217e731d3df0b189445117be3b26 (diff) | |
kaitai: adjustments and rearrangements for python2/3 compat
Diffstat (limited to 'python/examples/kaitai/genmidi_op2.py')
| -rw-r--r-- | python/examples/kaitai/genmidi_op2.py | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/python/examples/kaitai/genmidi_op2.py b/python/examples/kaitai/genmidi_op2.py new file mode 100644 index 00000000..ab39962a --- /dev/null +++ b/python/examples/kaitai/genmidi_op2.py @@ -0,0 +1,150 @@ +# 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() + + + |
