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97 lines
3.1 KiB
Python

#!/usr/bin/env python
#
# Copyright (C) 2014 Johannes Schauer <j.schauer@email.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import zlib
import struct
import os
from PIL import Image, ImageDraw
def is_pcx(data):
size,width,height = struct.unpack("<III",data[:12])
return size == width*height or size == width*height*3
def read_pcx(data):
size,width,height = struct.unpack("<III",data[:12])
if size == width*height:
im = Image.fromstring('P', (width,height),data[12:12+width*height])
palette = []
for i in range(256):
offset=12+width*height+i*3
r,g,b = struct.unpack("<BBB",data[offset:offset+3])
palette.extend((r,g,b))
im.putpalette(palette)
return im
elif size == width*height*3:
return Image.fromstring('RGB', (width,height),data[12:])
else:
return None
def unpack_lod(infile,outdir):
f = open(infile)
header = f.read(4)
if header != 'LOD\0':
print "not LOD file: %s"%header
return False
f.seek(8)
total, = struct.unpack("<I", f.read(4))
f.seek(92)
files=[]
for i in range(total):
filename, = struct.unpack("16s", f.read(16))
filename = filename[:filename.index('\0')].lower()
offset,size,_,csize = struct.unpack("<IIII", f.read(16))
files.append((filename,offset,size,csize))
for filename,offset,size,csize in files:
filename=os.path.join(outdir,filename)
print filename
f.seek(offset)
if csize != 0:
data = zlib.decompress(f.read(csize))
else:
data = f.read(size)
if is_pcx(data):
im = read_pcx(data)
if not im:
return False
filename = os.path.splitext(filename)[0]
filename = filename+".png"
im.save(filename)
else:
with open(filename,"w+") as o:
o.write(data)
return True
if __name__ == '__main__':
import sys
if len(sys.argv) != 3:
print "usage: %s infile.lod ./outdir"%sys.argv[0]
print ""
print "usually after installing the normal way:"
print " %s .vcmi/Data/H3bitmap.lod .vcmi/Mods/vcmi/Data/"%sys.argv[0]
print " rm .vcmi/Data/H3bitmap.lod"
print " %s .vcmi/Data/H3sprite.lod .vcmi/Mods/vcmi/Data/"%sys.argv[0]
print " rm .vcmi/Data/H3sprite.lod"
exit(1)
ret = unpack_lod(sys.argv[1], sys.argv[2])
exit(0 if ret else 1)