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From: pdermody@maths.tcd.ie (Paul Dermody)
Newsgroups: comp.sys.amiga
Subject: IFF Format
Message-ID: <1012@hamilton.maths.tcd.ie>
Date: 3 Oct 89 15:40:57 GMT
Reply-To: pdermody@maths.tcd.ie (Paul Dermody)
Organization: Maths Dept., Trinity College, Dublin
Lines: 29


I am looking for help with the format if IFF picture files.
	1. I have some documantation from a magazine which says that
if the byte which refers to the masking tecnique is equal to 1, then
there is a mask interleaved with the data. I saved a picture using
DPII while a there was a stencil on and I got the relevent byte equal to
1, but I don't know which plane of data refers to the mask. Is it the
first/last plane, or is it application dependent?
	2. What is the format for the following chunks:
		GRAB	refers to a hotspot.
		DEST	?
		SPRT	sprite data.
		CAMG	something to do with HAM.
	    and any other chunks if there are any.

I realise that some of these questions require answers which are not exactly
neat and concise, but any help will be greatly appreciated.

Thanks, in advance, for any help. Mail directly to me, rather than post
it unless these type of questions are asked often. Or if I get many replies
or requests for info. I will post a summary.
BTW, I do not have the RKM's, I know I should but I don't.( They are first on
my list when I win the lottery. )

-- 
Paul Dermody: Mathsc.   | "An Irishman who doesn't drink. There's a turn up  
Trinity College, Dublin | for the books!": Light a penny candle, Maeve Binchy.
Ireland.                | "An Irishman who doesn't drink. Isn't that a
  Theorem: 26 + 6 = 1   |  Contradiction in terms?": Staten Island bouncer.