.\"	"@(#)read_gif.txt	1.1 Stardent 90/06/25"
.\"			Copyright (c) 1989 by
.\"			Stardent Computer Inc.
.\"			All Rights Reserved
.\"	
.\"	
NAME:		read_gif

AUTHOR INFO:	Larry Gelberg, Stardent Computer, 617-964-1000

SOURCE FILE:	read_gif.c

TYPE:		data

INPUTS:		None

OUTPUTS:	field 2D uniform 4-vector byte (color image)

PARAMETERS:     Name		Type	
		Read GIF        Browser

COPYRIGHT NOTICE:
read_gif.c  -  based strongly on...

gif2ras.c - Converts from a Compuserve GIF (tm) image to a Sun Raster image.

Copyright (c) 1988, 1989 by Patrick J. Naughton

Author: Patrick J. Naughton
naughton@wind.sun.com

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation.

This file is provided AS IS with no warranties of any kind.  The author
shall have no liability with respect to the infringement of copyrights,
trade secrets or any patents by this file or any part thereof.  In no
event will the author be liable for any lost revenue or profits or
other special, indirect and consequential damages.

DESCRIPTION:
This module reads a GIF format file and creates a 32-bit ARGB image
in the AVS "field 2D 4-vector byte" format. If the GIF file has an
embedded color-map, that is used, otherwise, it creates a linear
grey-scale ramp.

LIMITATIONS:
It is not fast and has not been tested on a wide range of GIF file
types.