From:	"J.E." <cellis AT voyageur DOT ca>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Allegro Blitting
Date:	Thu, 06 Nov 1997 22:22:39 -0600
Organization:	Bell Network Solutions
Lines:	15
Message-ID:	<3462978E.5127@voyageur.ca>
Reply-To:	cellis AT voyageur DOT ca
NNTP-Posting-Host:	207.236.8.13
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

I am considering using a 320x10000 bitmap as a scrolling background for
a top down space shooter which I will write using Allegro.  Basically,
I'd have the entire bitmap in memory, and would blit a 200 pixel tall
section of the bitmap to the screen each frame.  The benefit that I can
see to this is that the background can be hand drawn or scanned for
great detail.  However, is this really efficient, or would it be a
ridiculous way to make a scroller?  Also, is it possible to load single
objects at a time from an Allegro data-file (so that I could have all
the backgrounds in one data-file)?  Well, that's about it.  Thanks for
your time and help:-)

Jordan Ellis  <cellis AT voyageur DOT ca>

P.S.  Allegro plays samples for me fine under Win95, but is silent under
DOS.  Why??  Thanks again 8-)

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