Path: utzoo!attcan!uunet!garfield!john13
From: john13@garfield.MUN.EDU (John Russell)
Newsgroups: comp.sys.amiga.tech
Subject: Things to put in IFF picture files
Keywords: iff
Message-ID: <4937@garfield.MUN.EDU>
Date: 16 Oct 88 01:29:34 GMT
Organization: CS Dept., Memorial U. of Newfoundland, St. John's
Lines: 24

I was looking at a display using a custom copperlist, and it occurred to me
it was a shame the picture could not be displayed that way from any other
program. So I thought, why not? Why not create an IFF chunk which would
contain a specialized copperlist? Obviously it would be Amiga-specific, but
the bitmap data could still be manipulated by any IFF cognizant program on
any system.

Would anyone like to comment on the feasability of this scheme, and if so
what would be a good way to store the information in a file? I've no
experience with copperlists myself.

Also nice would be a way to store fragments of code in a picture file, say to
deal with a special compression format. I can think of some nifty applications
for that sort of thing (maybe pictures that could auto-convert themselves
from other formats?). Would it be possible to store object code in the middle
of the picture file, send it to its own temporary file in ram:, and then
loadseg and execute that?

John
-- 
"The 68000 processor can't possibly handle a colour display. You must have a
 68020 system and not know it."
		-- Amiga and Atari ST owners shared a chuckle over this view
		   from sales *and* technical people at the local Apple dealer