NAME¶
pgmtolispm - convert a portable graymap into Lisp Machine format
SYNOPSIS¶
pgmtolispm [
pgmfile]
DESCRIPTION¶
Reads a portable graymap as input. Produces a Lisp Machine bitmap as output.
This is the file format read by the tv:read-bit-array-file function on TI
Explorer and Symbolics lisp machines.
Given a pgm (instead of a pbm) a multi-plane image will be output. This is
probably not useful unless you have a color lisp machine.
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 graymap instead. This
is unfortunate.
SEE ALSO¶
lispmtopgm(1),
pgm(5)
BUGS¶
Output width is always rounded up to the nearest multiple of 32; this might not
always be what you want, but it probably is (arrays which are not modulo 32
cannot be passed to the Lispm BITBLT function, and thus cannot easily be
displayed on the screen).
No color.
AUTHOR¶
Copyright (C) 1991 by Jamie Zawinski and Jef Poskanzer.