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authorXusheng <xusheng@vector35.com>2021-07-01 12:34:30 +0800
committerXusheng Li <xushengli@protonmail.com>2021-07-05 10:11:47 +0800
commit13ff200ba134b8704f37eca99c42b70dab0d17dc (patch)
tree876b3db3c53f704b31152aeaede1f2edc9d27b24 /python/examples/kaitai/blender_blend.py
parent4039a800349dcd587833d3e27d9137e4649818f4 (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.py321
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
-
-