Path: utzoo!attcan!uunet!cs.utexas.edu!sun-barr!apple!well!ewhac
From: ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Simple IFF question
Message-ID: <13997@well.UUCP>
Date: 8 Oct 89 04:58:26 GMT
References: <1745@sauron.Columbia.NCR.COM>
Reply-To: ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab)
Distribution: na
Organization: Electronic Philistines.
Lines: 20
Quote: "This is stupid."  -- Vila
	"When did that ever stop us?"  -- Avon

In article <1745@sauron.Columbia.NCR.COM> randy@sauron.Columbia.NCR.COM (Randy Smith) writes:
>"Amiga ILBMs images must be a even number of bytes wide.  Smaller images 
>(such as brushes) are padded to an even byte width."  
>
>My question is are the height and width values in the BMHD adjusted to
>take into account the padding or do they reflect the true size of the
>bitmap without the padding.  [ ... ]

	BMHD.w reflects the true width of the bitmap; you are supposed to
"know" about the padding, and mask off extra bits to zero.  BMHD.h is
always an exact value.

	Amiga BitMaps are required to be word-aligned, too, so this works
out nicely.

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Leo L. Schwab -- The Guy in The Cape	INET: well!ewhac@ucbvax.Berkeley.EDU
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