def unpack_header(self, reader: BinaryReader) -> int:
self.big_endian = reader.unpack_value("?", offset=0xD)
reader.byte_order = ">" if self.big_endian else "<"
self.bit_big_endian = reader.unpack_value("?", offset=0xE)
reader.unpack_value("4s", asserted=b"BND3")
self.signature = reader.unpack_value("8s").decode("ascii").rstrip("\0")
self.flags = BinderFlags.read(reader, self.bit_big_endian)
reader.byte_order = ">" if self.big_endian or self.flags.is_big_endian else "<"
reader.seek(2, 1) # skip peeked endian bytes
reader.assert_pad(1)
entry_count = reader.unpack_value("i")
reader.seek(12, 1) # skip file size
return entry_count
def unpack(self, reader: BinaryReader, **kwargs):
reader.unpack_value("4s", asserted=b"TPF\0")
self.platform = TPFPlatform(reader.unpack_value("B", offset=0xC))
reader.byte_order = ">" if self.platform in {
TPFPlatform.Xbox360, TPFPlatform.PS3
} else "<"
reader.unpack_value("i") # data length
file_count = reader.unpack_value("i")
reader.unpack_value("B") # platform
self.tpf_flags = reader.unpack_value("B")
if self.tpf_flags not in {0, 1, 2, 3}:
raise ValueError(
f"`TPF.tpf_flags` was {self.tpf_flags}, but expected 0, 1, 2, or 3."
)
self.encoding = reader.unpack_value("B")
if self.encoding not in {0, 1, 2}:
raise ValueError(
f"`TPF.encoding` was {self.encoding}, but expected 0, 1, or 2."
)
reader.assert_pad(1)
encoding = reader.get_utf_16_encoding(
) if self.encoding == 1 else "shift_jis_2004"
self.textures = [
TPFTexture.unpack_from(reader, self.platform, self.tpf_flags,
encoding) for _ in range(file_count)
]
def unpack_header(self, reader: BinaryReader):
reader.unpack_value("4s", asserted=b"BND4")
self.unknown1 = reader.unpack_value("?")
self.unknown2 = reader.unpack_value("?")
reader.assert_pad(3)
self.big_endian = reader.unpack_value("?")
self.bit_big_endian = not reader.unpack_value("?") # note reversal
reader.assert_pad(1)
reader.byte_order = ">" if self.big_endian else "<" # no need to check flags for an override in BND4
entry_count = reader.unpack_value("i")
reader.unpack_value("q", asserted=0x40) # header size
self.signature = reader.unpack_value("8s").decode("ascii").rstrip("\0")
entry_header_size = reader.unpack_value("q")
data_offset = reader.unpack_value(
"q") # end of all headers, including hash table
self.unicode = reader.unpack_value("?")
self.flags = BinderFlags.read(reader, self.bit_big_endian)
self.hash_table_type = reader.unpack_value("B")
reader.assert_pad(5)
hash_table_offset = reader.unpack_value("q")
flags_header_size = self.flags.get_bnd_entry_header_size()
if entry_header_size != flags_header_size:
raise ValueError(
f"Expected BND entry header size {flags_header_size} based on flags\n"
f"{self.flags:08b}, but BND header says {entry_header_size}.")
if self.hash_table_type != 4 and hash_table_offset != 0:
_LOGGER.warning(
f"Found non-zero hash table offset {hash_table_offset}, but header says this BHD has no hash "
f"table.")
entry_headers = [
BinderEntryHeader.from_bnd4_reader(reader, self.flags,
self.bit_big_endian,
self.unicode)
for _ in range(entry_count)
]
if self.hash_table_type == 4:
# Save the initial hash table.
reader.seek(hash_table_offset)
self._most_recent_hash_table = reader.read(data_offset -
hash_table_offset)
return entry_headers
def unpack_header(self, reader: BinaryReader):
reader.unpack_value("4s", asserted=b"BND4")
self.unknown1 = reader.unpack_value("?")
self.unknown2 = reader.unpack_value("?")
reader.assert_pad(3)
self.big_endian = reader.unpack_value("?")
self.bit_big_endian = not reader.unpack_value("?") # note reversal
reader.assert_pad(1)
reader.byte_order = ">" if self.big_endian else "<" # no need to check flags for an override in BND4
entry_count = reader.unpack_value("i")
reader.unpack_value("q", asserted=0x40) # header size
self.signature = reader.unpack_value("8s").decode("ascii").rstrip("\0")
entry_header_size = reader.unpack_value("q")
data_offset = reader.unpack_value(
"q") # end of all headers, including hash table
self.unicode = reader.unpack_value("?")
self.flags = BinderFlags.read(reader, self.bit_big_endian)
self.hash_table_type = reader.unpack_value("B")
reader.assert_pad(5)
hash_table_offset = reader.unpack_value("q")
return entry_count, entry_header_size, hash_table_offset, data_offset
