Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!samsung!usc!apple!well!jef
From: jef@well.UUCP (Jef Poskanzer)
Newsgroups: comp.graphics
Subject: Re: Sun Raster files, PBM, etc.
Message-ID: <14567@well.UUCP>
Date: 15 Nov 89 03:47:02 GMT
References: <1947@atanasoff.cs.iastate.edu>
Reply-To: Jef Poskanzer <jef@well.sf.ca.us>
Organization: Paratheo-Anametamystikhood Of Eris Esoteric, Ada Lovelace Cabal
Lines: 27

In the referenced message, John Hascall wrote:
}   I grabbed PBM or FBM or whatever it's called but it was no help to me
}   as I do not have a SUN and to quote from the source:

PBMPLUS or FBM, two separate but similar packages.

}     /* This program compiles only on Suns. */

Yes.  PBMPLUS uses Sun's libpixrect to read and write rasterfiles, so
that part of it can only be used on Suns.  FBM's rasterfile support
will compile anywhere, but does not handle byte-encoded rasterfiles.

However, a few weeks ago I got fed up and finally wrote my own
rasterfile reader and writer.  They compile anywhere, AND they handle
byte-encoded rasterfiles.  They will show up as part of the next
release of PBMPLUS within two weeks (X.V11R4 contrib closing date).

}    Of course, you need to worry about "endian" swapping in the int4 vars.

This version also solves the endian problems with rasterfiles once and
for all, the only really reliable way: it only does single-byte reads.
---
Jef

      Jef Poskanzer  jef@well.sf.ca.us  {ucbvax, apple, hplabs}!well!jef
 "If you do bad things in the vicinity of a rock and roll record, chances are
             you were sick before you got there." -- Frank Zappa