Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!ucsd!pacbell.com!pacbell!att!mcdchg!laidbak!obdient!igloo!ddsw1!corpane!sparks
From: sparks@corpane.UUCP (John Sparks)
Newsgroups: comp.sys.amiga
Subject: Re: GIF viewing again and again
Keywords: GIF, graphics, IFF, conversion
Message-ID: <2763@corpane.UUCP>
Date: 24 Aug 90 13:06:29 GMT
References: <5338@harrier.ukc.ac.uk>
Organization: Corpane Industries Inc., Louisville, KY
Lines: 25

djb1@ukc.ac.uk (David Beckett) writes:

>an 1152x9?? bw standard picture. Some of the programs took 30 minutes, some
>worked fast, but nearly all of them produced a tiny 640x400 picture - yuk.
>Have they never heard of overscan? I tried a smaller color picture and boom -
>out of memory.

er, 1152x9? What was it, a scale gif of a water hose?

any way, 1152 is just a wee more than overscan. I think the Amiga can only
handle up to 700 something (748 or thereabouts) on horizontal overscan.
If you don't want to shrink the picture down so it fits on your Amiga screen,
then you need to be able to view a virtual picture. In other words, the GIF
will be in memory and your screen will be a window that you can slide around
and view different parts of it. The only program that does this for GIFs is
VirtGIF as far as I know, but you said you already tried that. And yes memory
will be a problem for large GIFs, since I believe VirtGIF keeps the entire
picture in memory and lets you slide around on it.


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