diff options
| author | Xusheng <xusheng@vector35.com> | 2021-07-01 12:34:30 +0800 |
|---|---|---|
| committer | Xusheng Li <xushengli@protonmail.com> | 2021-07-05 10:11:47 +0800 |
| commit | 13ff200ba134b8704f37eca99c42b70dab0d17dc (patch) | |
| tree | 876b3db3c53f704b31152aeaede1f2edc9d27b24 /python/examples/kaitai/blender_blend.py | |
| parent | 4039a800349dcd587833d3e27d9137e4649818f4 (diff) | |
Remove snippet and kaitai plugin. Note their individual links.
Diffstat (limited to 'python/examples/kaitai/blender_blend.py')
| -rw-r--r-- | python/examples/kaitai/blender_blend.py | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/python/examples/kaitai/blender_blend.py b/python/examples/kaitai/blender_blend.py deleted file mode 100644 index 4d6d4ab5..00000000 --- a/python/examples/kaitai/blender_blend.py +++ /dev/null @@ -1,321 +0,0 @@ -# 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 -from enum import Enum -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 BlenderBlend(KaitaiStruct): - """Blender is an open source suite for 3D modelling, sculpting, - animation, compositing, rendering, preparation of assets for its own - game engine and exporting to others, etc. `.blend` is its own binary - format that saves whole state of suite: current scene, animations, - all software settings, extensions, etc. - - Internally, .blend format is a hybrid semi-self-descriptive - format. On top level, it contains a simple header and a sequence of - file blocks, which more or less follow typical [TLV - pattern](https://en.wikipedia.org/wiki/Type-length-value). Pre-last - block would be a structure with code `DNA1`, which is a essentially - a machine-readable schema of all other structures used in this file. - """ - - class PtrSize(Enum): - bits_64 = 45 - bits_32 = 95 - - class Endian(Enum): - be = 86 - le = 118 - SEQ_FIELDS = ["hdr", "blocks"] - 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['hdr']['start'] = self._io.pos() - self.hdr = self._root.Header(self._io, self, self._root) - self.hdr._read() - self._debug['hdr']['end'] = self._io.pos() - self._debug['blocks']['start'] = self._io.pos() - self.blocks = [] - i = 0 - while not self._io.is_eof(): - if not 'arr' in self._debug['blocks']: - self._debug['blocks']['arr'] = [] - self._debug['blocks']['arr'].append({'start': self._io.pos()}) - _t_blocks = self._root.FileBlock(self._io, self, self._root) - _t_blocks._read() - self.blocks.append(_t_blocks) - self._debug['blocks']['arr'][len(self.blocks) - 1]['end'] = self._io.pos() - i += 1 - - self._debug['blocks']['end'] = self._io.pos() - - class DnaStruct(KaitaiStruct): - """DNA struct contains a `type` (type name), which is specified as - an index in types table, and sequence of fields. - """ - SEQ_FIELDS = ["idx_type", "num_fields", "fields"] - 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['idx_type']['start'] = self._io.pos() - self.idx_type = self._io.read_u2le() - self._debug['idx_type']['end'] = self._io.pos() - self._debug['num_fields']['start'] = self._io.pos() - self.num_fields = self._io.read_u2le() - self._debug['num_fields']['end'] = self._io.pos() - self._debug['fields']['start'] = self._io.pos() - self.fields = [None] * (self.num_fields) - for i in range(self.num_fields): - if not 'arr' in self._debug['fields']: - self._debug['fields']['arr'] = [] - self._debug['fields']['arr'].append({'start': self._io.pos()}) - _t_fields = self._root.DnaField(self._io, self, self._root) - _t_fields._read() - self.fields[i] = _t_fields - self._debug['fields']['arr'][i]['end'] = self._io.pos() - - self._debug['fields']['end'] = self._io.pos() - - @property - def type(self): - if hasattr(self, '_m_type'): - return self._m_type if hasattr(self, '_m_type') else None - - self._m_type = self._parent.types[self.idx_type] - return self._m_type if hasattr(self, '_m_type') else None - - - class FileBlock(KaitaiStruct): - SEQ_FIELDS = ["code", "len_body", "mem_addr", "sdna_index", "count", "body"] - 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['code']['start'] = self._io.pos() - self.code = (self._io.read_bytes(4)).decode(u"ASCII") - self._debug['code']['end'] = self._io.pos() - self._debug['len_body']['start'] = self._io.pos() - self.len_body = self._io.read_u4le() - self._debug['len_body']['end'] = self._io.pos() - self._debug['mem_addr']['start'] = self._io.pos() - self.mem_addr = self._io.read_bytes(self._root.hdr.psize) - self._debug['mem_addr']['end'] = self._io.pos() - self._debug['sdna_index']['start'] = self._io.pos() - self.sdna_index = self._io.read_u4le() - self._debug['sdna_index']['end'] = self._io.pos() - self._debug['count']['start'] = self._io.pos() - self.count = self._io.read_u4le() - self._debug['count']['end'] = self._io.pos() - self._debug['body']['start'] = self._io.pos() - _on = self.code - if _on == u"DNA1": - self._raw_body = self._io.read_bytes(self.len_body) - io = KaitaiStream(BytesIO(self._raw_body)) - self.body = self._root.Dna1Body(io, self, self._root) - self.body._read() - else: - self.body = self._io.read_bytes(self.len_body) - self._debug['body']['end'] = self._io.pos() - - @property - def sdna_struct(self): - if hasattr(self, '_m_sdna_struct'): - return self._m_sdna_struct if hasattr(self, '_m_sdna_struct') else None - - if self.sdna_index != 0: - self._m_sdna_struct = self._root.sdna_structs[self.sdna_index] - - return self._m_sdna_struct if hasattr(self, '_m_sdna_struct') else None - - - class Dna1Body(KaitaiStruct): - """DNA1, also known as "Structure DNA", is a special block in - .blend file, which contains machine-readable specifications of - all other structures used in this .blend file. - - Effectively, this block contains: - - * a sequence of "names" (strings which represent field names) - * a sequence of "types" (strings which represent type name) - * a sequence of "type lengths" - * a sequence of "structs" (which describe contents of every - structure, referring to types and names by index) - - .. seealso:: - Source - https://en.blender.org/index.php/Dev:Source/Architecture/File_Format#Structure_DNA - """ - SEQ_FIELDS = ["id", "name_magic", "num_names", "names", "padding_1", "type_magic", "num_types", "types", "padding_2", "tlen_magic", "lengths", "padding_3", "strc_magic", "num_structs", "structs"] - 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['id']['start'] = self._io.pos() - self.id = self._io.ensure_fixed_contents(b"\x53\x44\x4E\x41") - self._debug['id']['end'] = self._io.pos() - self._debug['name_magic']['start'] = self._io.pos() - self.name_magic = self._io.ensure_fixed_contents(b"\x4E\x41\x4D\x45") - self._debug['name_magic']['end'] = self._io.pos() - self._debug['num_names']['start'] = self._io.pos() - self.num_names = self._io.read_u4le() - self._debug['num_names']['end'] = self._io.pos() - self._debug['names']['start'] = self._io.pos() - self.names = [None] * (self.num_names) - for i in range(self.num_names): - if not 'arr' in self._debug['names']: - self._debug['names']['arr'] = [] - self._debug['names']['arr'].append({'start': self._io.pos()}) - self.names[i] = (self._io.read_bytes_term(0, False, True, True)).decode(u"UTF-8") - self._debug['names']['arr'][i]['end'] = self._io.pos() - - self._debug['names']['end'] = self._io.pos() - self._debug['padding_1']['start'] = self._io.pos() - self.padding_1 = self._io.read_bytes(((4 - self._io.pos()) % 4)) - self._debug['padding_1']['end'] = self._io.pos() - self._debug['type_magic']['start'] = self._io.pos() - self.type_magic = self._io.ensure_fixed_contents(b"\x54\x59\x50\x45") - self._debug['type_magic']['end'] = self._io.pos() - self._debug['num_types']['start'] = self._io.pos() - self.num_types = self._io.read_u4le() - self._debug['num_types']['end'] = self._io.pos() - self._debug['types']['start'] = self._io.pos() - self.types = [None] * (self.num_types) - for i in range(self.num_types): - if not 'arr' in self._debug['types']: - self._debug['types']['arr'] = [] - self._debug['types']['arr'].append({'start': self._io.pos()}) - self.types[i] = (self._io.read_bytes_term(0, False, True, True)).decode(u"UTF-8") - self._debug['types']['arr'][i]['end'] = self._io.pos() - - self._debug['types']['end'] = self._io.pos() - self._debug['padding_2']['start'] = self._io.pos() - self.padding_2 = self._io.read_bytes(((4 - self._io.pos()) % 4)) - self._debug['padding_2']['end'] = self._io.pos() - self._debug['tlen_magic']['start'] = self._io.pos() - self.tlen_magic = self._io.ensure_fixed_contents(b"\x54\x4C\x45\x4E") - self._debug['tlen_magic']['end'] = self._io.pos() - self._debug['lengths']['start'] = self._io.pos() - self.lengths = [None] * (self.num_types) - for i in range(self.num_types): - if not 'arr' in self._debug['lengths']: - self._debug['lengths']['arr'] = [] - self._debug['lengths']['arr'].append({'start': self._io.pos()}) - self.lengths[i] = self._io.read_u2le() - self._debug['lengths']['arr'][i]['end'] = self._io.pos() - - self._debug['lengths']['end'] = self._io.pos() - self._debug['padding_3']['start'] = self._io.pos() - self.padding_3 = self._io.read_bytes(((4 - self._io.pos()) % 4)) - self._debug['padding_3']['end'] = self._io.pos() - self._debug['strc_magic']['start'] = self._io.pos() - self.strc_magic = self._io.ensure_fixed_contents(b"\x53\x54\x52\x43") - self._debug['strc_magic']['end'] = self._io.pos() - self._debug['num_structs']['start'] = self._io.pos() - self.num_structs = self._io.read_u4le() - self._debug['num_structs']['end'] = self._io.pos() - self._debug['structs']['start'] = self._io.pos() - self.structs = [None] * (self.num_structs) - for i in range(self.num_structs): - if not 'arr' in self._debug['structs']: - self._debug['structs']['arr'] = [] - self._debug['structs']['arr'].append({'start': self._io.pos()}) - _t_structs = self._root.DnaStruct(self._io, self, self._root) - _t_structs._read() - self.structs[i] = _t_structs - self._debug['structs']['arr'][i]['end'] = self._io.pos() - - self._debug['structs']['end'] = self._io.pos() - - - class Header(KaitaiStruct): - SEQ_FIELDS = ["magic", "ptr_size_id", "endian", "version"] - 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"\x42\x4C\x45\x4E\x44\x45\x52") - self._debug['magic']['end'] = self._io.pos() - self._debug['ptr_size_id']['start'] = self._io.pos() - self.ptr_size_id = KaitaiStream.resolve_enum(self._root.PtrSize, self._io.read_u1()) - self._debug['ptr_size_id']['end'] = self._io.pos() - self._debug['endian']['start'] = self._io.pos() - self.endian = KaitaiStream.resolve_enum(self._root.Endian, self._io.read_u1()) - self._debug['endian']['end'] = self._io.pos() - self._debug['version']['start'] = self._io.pos() - self.version = (self._io.read_bytes(3)).decode(u"ASCII") - self._debug['version']['end'] = self._io.pos() - - @property - def psize(self): - """Number of bytes that a pointer occupies.""" - if hasattr(self, '_m_psize'): - return self._m_psize if hasattr(self, '_m_psize') else None - - self._m_psize = (8 if self.ptr_size_id == self._root.PtrSize.bits_64 else 4) - return self._m_psize if hasattr(self, '_m_psize') else None - - - class DnaField(KaitaiStruct): - SEQ_FIELDS = ["idx_type", "idx_name"] - 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['idx_type']['start'] = self._io.pos() - self.idx_type = self._io.read_u2le() - self._debug['idx_type']['end'] = self._io.pos() - self._debug['idx_name']['start'] = self._io.pos() - self.idx_name = self._io.read_u2le() - self._debug['idx_name']['end'] = self._io.pos() - - @property - def type(self): - if hasattr(self, '_m_type'): - return self._m_type if hasattr(self, '_m_type') else None - - self._m_type = self._parent._parent.types[self.idx_type] - return self._m_type if hasattr(self, '_m_type') else None - - @property - def name(self): - if hasattr(self, '_m_name'): - return self._m_name if hasattr(self, '_m_name') else None - - self._m_name = self._parent._parent.names[self.idx_name] - return self._m_name if hasattr(self, '_m_name') else None - - - @property - def sdna_structs(self): - if hasattr(self, '_m_sdna_structs'): - return self._m_sdna_structs if hasattr(self, '_m_sdna_structs') else None - - self._m_sdna_structs = self.blocks[(len(self.blocks) - 2)].body.structs - return self._m_sdna_structs if hasattr(self, '_m_sdna_structs') else None - - |
