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DMD bitmap to PostScript translator. Much of the code came from abm,
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which was written by Guy Riddle.
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By default 6 byte patterns are used to encode the output bitmap. Use
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the -b option to change the pattern size. Bitmaps are unpacked one
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scanline at a time and re-encoded in a format that looks like,
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bytes patterns count
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where bytes and count are decimal integers and patterns is a series
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of hex digits. Bytes is the number of bytes represented by the hex
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pattern, and count is the number of additional times the pattern
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should be repeated. For example,
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2 FFFF 4
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5 FFFFFFFFFF 1
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10 FFFFFFFFFFFFFFFFFFFF 0
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all represent 10 consecutive bytes of ones. Scanlines are terminated
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by a 0 on a line by itself.
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