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30 lines
797 B
Text
30 lines
797 B
Text
Compressed wad format:
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Just like a normal wad, except:
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1. The header id at the very beginning says "ZWAD"
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instead of PWAD or IWAD.
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2. The first four bytes of each lump are (little
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endian) the uncompressed size. If this is zero,
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the lump is not compressed, and you can subtract
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four from the size given in the wadfile directory.
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3. Unless those first four bytes give a value of
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0, the lump is compressed with liblzf after that.
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To compile this program, just compiling all its
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source files should work, that is:
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gcc *.c -o wadzip
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[On a big-endian CPU, add "-DWORDS_BIGENDIAN" to
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that command line.]
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Visual C++ should also work, as well as gcc.
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Compress a wad:
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wadzip c original.wad compressed.wad
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Decompress a wad (restoring the original):
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wadzip d compressed.wad original.wad
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