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Lispmtopgm User Manual
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lispmtopgm
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Updated: 06 March 1990
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Table Of Contents
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NAME
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lispmtopgm - convert a Lisp Machine bitmap file to PGM
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SYNOPSIS
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\fBlispmtopgm\fR
[\fIlispmfile\fR]
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DESCRIPTION
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This program is part of Netpbm.
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\fBlistpmfile\fR reads a Lisp Machine bitmap as input and
produces a PGM image as output.
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This is the file format written by the tv:write-bit-array-file
function on TI Explorer and Symbolics lisp machines.
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Multi-plane bitmaps on lisp machines are color; but the Lispm image
file format does not include a color map, so we must treat it as a
monochrome instead and produce PGM.  This is unfortunate.
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SEE ALSO
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pgmtolispm,
pgm
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LIMITATIONS
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The Lispm bitmap file format is a bit quirky;  Usually the image in the file
has its width rounded up to the next higher multiple of 32, but not always.
If the width is not a multiple of 32, we don't deal with it properly, but 
because of the Lispm microcode, such arrays are probably not image data 
anyway.
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Also, the Lispm code for saving bitmaps has a bug, in that if you
are writing a bitmap which is not mod32 across, the file may be up to
7 bits too short!  They round down instead of up, and we don't handle
this bug gracefully.
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AUTHOR
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Copyright (C) 1991 by Jamie Zawinski and Jef Poskanzer.
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\l'5i'
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Table Of Contents
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NAME
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SYNOPSIS
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BUGS
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AUTHOR
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