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- lispmtopgm(1) AMIGA (06 March 1990) lispmtopgm(1)
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- NAME
- lispmtopgm - convert a Lisp Machine bitmap file into pgm
- format
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- SYNOPSIS
- lispmtopgm [lispmfile]
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- DESCRIPTION
- Reads a Lisp Machine bitmap as input. Produces a portable
- graymap 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 graymap instead. This is unfortunate.
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- SEE ALSO
- pgmtolispm(1), pgm(5)
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- BUGS
- 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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- No color.
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- AUTHOR
- Copyright (C) 1991 by Jamie Zawinski and Jef Poskanzer.
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- Page 1 (printed 10/19/91)
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