PyTouhou: pytouhou/formats/pbg3.py annotate

annotate pytouhou/formats/pbg3.py @ 420:3a7b36324611

Replace Pyglet’s image loader with our SDL2_image-based one.

author	Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date	Tue, 16 Jul 2013 21:07:15 +0200
parents	70e2ed71b09c
children	1b532e7dd521

rev	line source
52 ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	1 # -- encoding: utf-8 --
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	2 ##
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	4 ##
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	5 ## This program is free software; you can redistribute it and/or modify
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	6 ## it under the terms of the GNU General Public License as published
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	7 ## by the Free Software Foundation; version 3 only.
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	8 ##
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	9 ## This program is distributed in the hope that it will be useful,
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	12 ## GNU General Public License for more details.
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	13 ##
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file. Thibaut Girka <thib@sitedethib.com> parents: 0 diff changeset	14
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	15 """PBG3 archive files handling.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	16
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	17 This module provides classes for handling the PBG3 file format.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	18 The PBG3 format is the archive format used by Touhou: EoSD.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	19
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	20 PBG3 files are merely a bitstream composed of a header,
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	21 a file table, and LZSS-compressed files.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	22 """
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	23
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	24 from collections import namedtuple
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	25
58 3da4de9decd0 Use logging module Thibaut Girka <thib@sitedethib.com> parents: 52 diff changeset	26 from pytouhou.utils.bitstream import BitStream
3da4de9decd0 Use logging module Thibaut Girka <thib@sitedethib.com> parents: 52 diff changeset	27 import pytouhou.utils.lzss as lzss
3da4de9decd0 Use logging module Thibaut Girka <thib@sitedethib.com> parents: 52 diff changeset	28
3da4de9decd0 Use logging module Thibaut Girka <thib@sitedethib.com> parents: 52 diff changeset	29 from pytouhou.utils.helpers import get_logger
3da4de9decd0 Use logging module Thibaut Girka <thib@sitedethib.com> parents: 52 diff changeset	30
377 70e2ed71b09c Add meaningful exceptions in format parsing. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 252 diff changeset	31 from pytouhou.formats import WrongFormatError
70e2ed71b09c Add meaningful exceptions in format parsing. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 252 diff changeset	32
58 3da4de9decd0 Use logging module Thibaut Girka <thib@sitedethib.com> parents: 52 diff changeset	33 logger = get_logger(__name__)
3da4de9decd0 Use logging module Thibaut Girka <thib@sitedethib.com> parents: 52 diff changeset	34
3da4de9decd0 Use logging module Thibaut Girka <thib@sitedethib.com> parents: 52 diff changeset	35
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	36 class PBG3BitStream(BitStream):
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	37 """Helper class to handle strings and integers in PBG3 bitstreams."""
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	38
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	39 def read_int(self):
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	40 """Read an integer from the bitstream.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	41
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	42 Integers have variable sizes. They begin with a two-bit value indicating
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	43 the number of (non-aligned) bytes to read.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	44 """
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	45
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	46 size = self.read(2)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	47 return self.read((size + 1) * 8)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	48
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	49
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	50 def read_string(self, maxsize):
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	51 """Read a string from the bitstream.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	52
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	53 Strings are stored as standard NULL-termianted sequences of bytes.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	54 The only catch is that they are not byte-aligned.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	55 """
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	56
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	57 string = []
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	58 for i in range(maxsize):
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	59 byte = self.read(8)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	60 if byte == 0:
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	61 break
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	62 string.append(byte)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	63 return ''.join(chr(byte) for byte in string)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	64
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	65
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	66
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	67 PBG3Entry = namedtuple('PBG3Entry', 'unknown1 unknown2 checksum offset size')
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	68
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	69
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	70
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	71 class PBG3(object):
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	72 """Handle PBG3 archive files.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	73
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	74 PBG3 is a file archive format used in Touhou 6: EoSD.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	75 This class provides a representation of such files, as well as functions to
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	76 read and extract files from a PBG3 archive.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	77
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	78 Instance variables:
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	79 entries -- list of PBG3Entry objects describing files present in the archive
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	80 bitstream -- PBG3BitStream object
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	81 """
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	82
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	83 def __init__(self, entries=None, bitstream=None):
252 b5c7369abd7c Improve data reading perfs Thibaut Girka <thib@sitedethib.com> parents: 204 diff changeset	84 self.entries = entries or {}
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	85 self.bitstream = bitstream #TODO
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	86
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	87
97 ac2e5e1c2c3c Refactor \o/ Thibaut Girka <thib@sitedethib.com> parents: 58 diff changeset	88 def __enter__(self):
ac2e5e1c2c3c Refactor \o/ Thibaut Girka <thib@sitedethib.com> parents: 58 diff changeset	89 return self
ac2e5e1c2c3c Refactor \o/ Thibaut Girka <thib@sitedethib.com> parents: 58 diff changeset	90
ac2e5e1c2c3c Refactor \o/ Thibaut Girka <thib@sitedethib.com> parents: 58 diff changeset	91
ac2e5e1c2c3c Refactor \o/ Thibaut Girka <thib@sitedethib.com> parents: 58 diff changeset	92 def __exit__(self, type, value, traceback):
ac2e5e1c2c3c Refactor \o/ Thibaut Girka <thib@sitedethib.com> parents: 58 diff changeset	93 return self.bitstream.__exit__(type, value, traceback)
ac2e5e1c2c3c Refactor \o/ Thibaut Girka <thib@sitedethib.com> parents: 58 diff changeset	94
ac2e5e1c2c3c Refactor \o/ Thibaut Girka <thib@sitedethib.com> parents: 58 diff changeset	95
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	96 @classmethod
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	97 def read(cls, file):
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	98 """Read a PBG3 file.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	99
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	100 Raise an exception if the file is invalid.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	101 Return a PBG3 instance otherwise.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	102 """
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	103
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	104 magic = file.read(4)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	105 if magic != b'PBG3':
377 70e2ed71b09c Add meaningful exceptions in format parsing. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 252 diff changeset	106 raise WrongFormatError(magic)
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	107
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	108 bitstream = PBG3BitStream(file)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	109 entries = {}
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	110
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	111 nb_entries = bitstream.read_int()
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	112 offset = bitstream.read_int()
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	113 bitstream.seek(offset)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	114 for i in range(nb_entries):
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	115 unknown1 = bitstream.read_int()
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	116 unknown2 = bitstream.read_int()
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	117 checksum = bitstream.read_int() # Checksum of compressed data
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	118 offset = bitstream.read_int()
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	119 size = bitstream.read_int()
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	120 name = bitstream.read_string(255).decode('ascii')
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	121 entries[name] = PBG3Entry(unknown1, unknown2, checksum, offset, size)
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	122
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	123 return PBG3(entries, bitstream)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	124
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	125
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	126 def list_files(self):
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	127 """List files present in the archive."""
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	128 return self.entries.keys()
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	129
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	130
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	131 def extract(self, filename, check=False):
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	132 """Extract a given file.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	133
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	134 If “filename” is in the archive, extract it and return its contents.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	135 Otherwise, raise an exception.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	136
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	137 By default, the checksum of the file won't be verified,
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	138 you can however force the verification using the “check” argument.
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	139 """
88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	140
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	141 unkwn1, unkwn2, checksum, offset, size = self.entries[filename]
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	142 self.bitstream.seek(offset)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	143 data = lzss.decompress(self.bitstream, size)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	144 if check:
204 88361534c77e Add some documentation (argh, so much left to document!) Thibaut Girka <thib@sitedethib.com> parents: 97 diff changeset	145 # Verify the checksum
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	146 compressed_size = self.bitstream.io.tell() - offset
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	147 self.bitstream.seek(offset)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	148 value = 0
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	149 for c in self.bitstream.io.read(compressed_size):
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	150 value += ord(c)
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	151 value &= 0xFFFFFFFF
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	152 if value != checksum:
58 3da4de9decd0 Use logging module Thibaut Girka <thib@sitedethib.com> parents: 52 diff changeset	153 logger.warn('corrupted data!')
0 6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	154 return data
6b2c7af2384c Hello Gensokyo _o/ Thibaut Girka <thib@sitedethib.com> parents: diff changeset	155

Mercurial > touhou

annotate pytouhou/formats/pbg3.py @ 420:3a7b36324611