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Lispmtopgm User	Manual(0)			     Lispmtopgm	User Manual(0)

NAME
       lispmtopgm - convert a Lisp Machine bitmap file to PGM

SYNOPSIS
       lispmtopgm [lispmfile]

DESCRIPTION
       This program is part of Netpbm(1).

       listpmfile  reads a Lisp	Machine	bitmap as input	and produces a PGM im-
       age as output.

       This is the file	format written by the tv:write-bit-array-file function
       on TI Explorer and Symbolics lisp machines.

       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.

SEE ALSO
       pgmtolispm(1), pgm(5)

LIMITATIONS
       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	proba-
       bly not image data anyway.

       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.

AUTHOR
       Copyright (C) 1991 by Jamie Zawinski and	Jef Poskanzer.

DOCUMENT SOURCE
       This manual page	was generated by the Netpbm tool 'makeman'  from  HTML
       source.	The master documentation is at

	      http://netpbm.sourceforge.net/doc/lispmtopgm.html

netpbm documentation		 06 March 1990	     Lispmtopgm	User Manual(0)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | LIMITATIONS | AUTHOR | DOCUMENT SOURCE

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