From: "Stefan Viljoen" <rylan AT intekom DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Thanks for the help.  Problem fixed.
Date: Wed, 30 Jun 1999 20:55:04 +0300
Organization: The South African Internet Exchange
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Kevin P. Soucy <Agateauthor AT geocities DOT com> wrote in message
news:377938ad DOT 13341471 AT nntp DOT ix DOT netcom DOT com...
> I'd like to thank anyone who responded to my posts about my graphical
> level editor using Allegro.  The problem was in using Allegro's blit
> function to copy a rather lage bitmap(336 x 208 or 328 x 216) from one
> area of the screen to another.  I found that it works much faster
> rebuild the screen using many small blits rather than one large one.

This is interesting - anybody got any ideas why it works in lotsa smaller
steps faster than instead of one big one? Somekinda video mode dependant
thingy? I would have thought that one large block copy should go REALLY
faster than lotsa small copies?

Any ideas?


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