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From: hadeishi@husc4.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: IFF/ILBM HAM encoded images.
Message-ID: <1042@husc6.UUCP>
Date: Sun, 18-Jan-87 23:01:49 EST
Article-I.D.: husc6.1042
Posted: Sun Jan 18 23:01:49 1987
Date-Received: Mon, 19-Jan-87 06:22:44 EST
References: <7640@decwrl.DEC.COM>
Sender: news@husc6.UUCP
Reply-To: hadeishi@husc4.UUCP (mitsuharu hadeishi)
Organization: Harvard Science Center
Lines: 30

In re: questions about HAM mode ILBM,

	The original version of ShowILBM does not read the CAMG chunk,
so it does not get the View.Modes information that you need to display
the image as a HAM mode picture.  DPaint does not edit HAM mode images;
you need a HAM mode paint program, such as Digi-Paint (which was featured
in the first issue of Deluxe News, I believe; the one with Dan Silva
on the cover.)  You can easily modify ShowILBM to read the CAMG chunk,
although you have to wade through the readpict.c code provided with
the IFF source disk (Fish Disk 17, I think).  I've done so, but the
mod is so easy it seems a waste to post the thing.  My slideshow
program, distributed through Electronic Arts on the DPaint Utilities
and Art Disk #1, WILL display HAM mode IFF pictures, but it
crashes upon exit under 1.2 (this HAS been fixed in the update,
which will be released in a little while . . . BTW, the update
supports all DPaint II output formats, and is kinda cool . . . you'll
see it when it comes out.)  You want to get the slideshow program
if you don't want to wade through source code.  I've also
posted my modified ShowILBM on various Bay Area BBS's and the Well;
if you like, I'll post a uuencoded version of the executable on the net,
too (it also displays the image for a slightly longer period of time,
but it doesn't let you determine how long to see the image---I
suppose I could add that, too but I don't have the time to work on
it right now.)  So your images probably ARE in the right format,
you just don't have the right program to view them with yet.
I would recommend Digi-Paint, although I've never used it; it is a
full 4,096 color paint program (!) that allows you to merge multiple
32-color images, and all sorts of stuff, though I bet it's SLOW.

				-Mitsu