mirror of
https://gitlab.com/Nanolx/qwad.git
synced 2024-11-25 20:16:55 +01:00
258 lines
6.9 KiB
Python
258 lines
6.9 KiB
Python
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#!/usr/bin/python
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import sys, re, struct
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from Struct import Struct
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def nullterm(str_plus):
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z = str_plus.find('\x00\x00')
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if z != -1:
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return str_plus[:z]
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else:
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return str_plus
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def denullterm(str_plus):
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z = str_plus.find('\r\n')
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if z != -1:
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return str_plus[:z]
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else:
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return str_plus
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class BMG(object):
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class BMG_DAT1(Struct):
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__endian__ = Struct.BE
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def __format__(self):
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self.magic = Struct.string(4)
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self.length = Struct.uint32
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def __str__(self):
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return_string = "Magic: %s\n" % self.magic
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return_string += "Length: %08x\n " % self.length
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return return_string
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def write(self, file):
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file.write(self.magic)
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file.write(struct.pack('>I', self.length))
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return
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class BMG_INF1(Struct):
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__endian__ = Struct.BE
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def __format__(self):
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self.magic = Struct.string(4)
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self.length = Struct.uint32
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self.count = Struct.uint16
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self.unknown01 = Struct.uint16
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def __str__(self):
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return_string = "Magic: %s\n" % self.magic
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return_string += "Length: %08x\n " % self.length
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return_string += "Count: %04x\n" % self.count
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return_string += "Unknown: %04x\n" % self.unknown01
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return return_string
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def write(self, file):
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file.write(self.magic)
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file.write(struct.pack('>I', self.length))
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file.write(struct.pack('>H', self.count))
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file.write(struct.pack('>H', self.unknown01))
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return
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class BMG_Header(Struct):
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__endian__ = Struct.BE
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def __format__(self):
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self.magic = Struct.string(4)
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self.magic2 = Struct.string(4)
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self.length = Struct.uint32
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self.chunk_cnt = Struct.uint32
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self.unknown01 = Struct.uint8
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self.unknown02 = Struct.uint8
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self.unknown03 = Struct.uint16
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self.unknown04 = Struct.uint32
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self.unknown05 = Struct.uint32
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self.unknown06 = Struct.uint32
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def __str__(self):
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return_string = "Magic: %s\n" % self.magic
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return_string += "Magic: %s\n" % self.magic2
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return_string += "Length: %08x\n" % self.length
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return_string += "Chunk Count: %08x\n" % self.chunk_cnt
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return_string += "Unknown01: %02x\n" % self.unknown01
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return_string += "Unknown02: %02x\n" % self.unknown02
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return_string += "Unknown03: %04x\n" % self.unknown03
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return_string += "Unknown04: %08x\n" % self.unknown04
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return_string += "Unknown05: %08x\n" % self.unknown05
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return_string += "Unknown06: %08x\n" % self.unknown06
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return return_string
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def write(self, file):
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file.write(self.magic)
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file.write(self.magic2)
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file.write(struct.pack('>I', self.length))
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file.write(struct.pack('>I', self.chunk_cnt))
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file.write(struct.pack('>B', self.unknown01))
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file.write(struct.pack('>B', self.unknown02))
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file.write(struct.pack('>H', self.unknown03))
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file.write(struct.pack('>I', self.unknown04))
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file.write(struct.pack('>I', self.unknown05))
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file.write(struct.pack('>I', self.unknown06))
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return
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def __init__(self, data=None, out_file=None, debug=False):
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self.data = []
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if data != None:
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self.Unpack(data, out_file, debug)
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def Unpack(self, data, out_file, debug):
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file = open(out_file, 'wb')
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if file:
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pos = 0
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header = self.BMG_Header()
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header.unpack(data[pos:pos+len(header)])
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pos += len(header)
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if debug == True:
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print header
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print "\n%08x\n" % pos
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info = self.BMG_INF1()
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info.unpack(data[pos:pos+len(info)])
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pos += len(info)
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if debug == True:
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print info
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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if debug == True:
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print "Unknown: %08x" % unknown
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print "\n%08x\n" % pos
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offset_list = []
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for x in xrange(info.count):
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offset = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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if debug == True:
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print "Offset: %08x" % offset
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offset_list.append(offset)
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while pos % 0x10:
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padding = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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if debug == True:
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print "Padding: %08x" % padding
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if debug == True:
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print "\n%08x\n" % pos
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dat1 = self.BMG_DAT1()
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dat1.unpack(data[pos:pos+len(dat1)])
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pos += len(dat1)
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if debug == True:
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print dat1
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if debug == True:
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print "\n%08x\n" % pos
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temp = pos
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unknown = Struct.uint16(data[pos:pos+2], endian='>')
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pos += 2
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if debug == True:
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print "Unknown: %04x" % unknown
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for x in xrange(info.count):
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pos = temp + offset_list[x]
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string = nullterm(data[pos:])
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string = unicode(string, 'utf_16_be')
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file.write(string.encode('utf-8'))
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file.write('\r')
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file.write('\n')
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if debug == True:
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print "String: %s" % string.encode('utf-8')
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file.close()
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else:
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print "Could not open file for writing"
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sys.exit(1)
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def write(self, data, out_file):
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file = open(out_file, 'wb')
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if file:
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pos = 0
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count = 0
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strings_list = []
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while pos < len(data):
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temp = denullterm(data[pos:])
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pos += len(temp) + 2
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string = unicode(temp, 'utf-8')
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strings_list.append(string)
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count += 1
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offsets_list = []
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offset = 2
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for x in xrange(count):
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offsets_list.append(offset)
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offset += len(strings_list[x]) * 2 + 2
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dat1 = self.BMG_DAT1()
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dat1.length = offset + 8 + (0x10 - (offset % 0x10))
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dat_pad_to_add = 0x10 - (offset % 0x10)
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info = self.BMG_INF1()
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info.length = 0x10 + 4 * count + (0x10 - ((4 * count) % 0x10))
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info_pad_to_add = 0x10 - ((4*count) % 0x10)
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header = self.BMG_Header()
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header.magic = "MESG"
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header.magic2 = "bmg1"
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header.length = info.length + dat1.length + 0x20
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header.chunk_cnt = 2
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header.unknown01 = 2
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header.unknown02 = 0
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header.unknown03 = 0
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header.unknown04 = 0
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header.unknown05 = 0
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header.unknown06 = 0
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header.write(file)
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info.magic = "INF1"
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info.count = count
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info.unknown01 = 4
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info.write(file)
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unknown = 0
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file.write(struct.pack('>I', unknown))
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offset_list = []
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for x in offsets_list:
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file.write(struct.pack('>I', x))
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padding = 0
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for x in xrange(info_pad_to_add):
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file.write(struct.pack('>B', padding))
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dat1.magic = "DAT1"
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dat1.write(file)
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unknown = 0
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file.write(struct.pack('>H', unknown))
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for x in strings_list:
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file.write(x.encode('utf_16_be'))
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file.write('\x00\x00')
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file.write("\n")
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padding = 0
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for x in xrange(dat_pad_to_add):
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file.write(struct.pack('>B', padding))
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file.close()
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else:
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print "Could not open file for writing"
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sys.exit(1)
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def main():
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if len(sys.argv) == 1:
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print 'Usage: python bmg.py -r <filename.bmg> <filename.hog>'
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print ' == OR == '
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print 'Usage: python bmg.py -w> <filename.hog> <filename.bmg'
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sys.exit(1)
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if sys.argv[1] == "-r":
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f = open(sys.argv[2], 'rb')
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if f:
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bmg_buffer = f.read()
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f.close()
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else:
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print 'Could not open file for reading'
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sys.exit(1)
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bmg = BMG(bmg_buffer, sys.argv[3], debug=False)
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elif sys.argv[1] == "-w":
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f = open(sys.argv[2], 'rb')
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if f:
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bmg_buffer = f.read()
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f.close()
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else:
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print "Could not open file for reading"
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sys.exit(1)
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bmg = BMG()
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bmg.write(bmg_buffer, sys.argv[3])
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if __name__ == "__main__":
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main()
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