79 lines
2.2 KiB
Python
79 lines
2.2 KiB
Python
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#!/usr/bin/env python
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import zlib
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import struct
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import os
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from PIL import Image
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def is_pcx(data):
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size,width,height = struct.unpack("<III",data[:12])
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return size == width*height or size == width*height*3
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def read_pcx(data):
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size,width,height = struct.unpack("<III",data[:12])
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if size == width*height:
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im = Image.fromstring('P', (width,height),data[12:12+width*height])
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palette = []
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for i in range(256):
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offset=12+width*height+i*3
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r,g,b = struct.unpack("<BBB",data[offset:offset+3])
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palette.extend((r,g,b))
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im.putpalette(palette)
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return im
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elif size == width*height*3:
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return Image.fromstring('RGB', (width,height),data[12:])
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else:
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return None
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def unpack_lod(infile,outdir):
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f = open(infile)
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if f.read(4) != 'LOD\0':
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print "not LOD file"
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return False
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f.seek(8)
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total, = struct.unpack("<I", f.read(4))
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f.seek(92)
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files=[]
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for i in range(total):
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filename, = struct.unpack("16s", f.read(16))
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filename = filename[:filename.index('\0')]
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offset,size,_,csize = struct.unpack("<IIII", f.read(16))
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files.append((filename,offset,size,csize))
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for filename,offset,size,csize in files:
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filename=os.path.join(outdir,filename)
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print filename
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f.seek(offset)
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if csize != 0:
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data = zlib.decompress(f.read(csize))
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else:
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data = f.read(size)
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if is_pcx(data):
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im = read_pcx(data)
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if im:
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im.save(filename, "PNG")
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else:
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return False
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else:
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o = open(filename,"w+")
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o.write(data)
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o.close()
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return True
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if __name__ == '__main__':
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import sys
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if len(sys.argv) != 3:
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print "usage: %s infile.lod ./outdir"%sys.argv[0]
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print ""
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print "usually after installing the normal way:"
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print " %s .vcmi/Data/H3bitmap.lod .vcmi/Mods/vcmi/Data/"
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print " rm .vcmi/Data/H3bitmap.lod"
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print " %s .vcmi/Data/H3sprite.lod .vcmi/Mods/vcmi/Data/"
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print " rm .vcmi/Data/H3sprite.lod"
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ret = unpack_lod(sys.argv[1], sys.argv[2])
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exit(0 if ret else 1)
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