Message-Id: <199812292353.XAA21776@remus>
From: "Arthur" <arfa AT clara DOT net>
To: <djgpp AT delorie DOT com>
Subject: RE: Speed problem
Date: Tue, 29 Dec 1998 23:52:05 -0000
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Reply-To: djgpp AT delorie DOT com

> "Me and my game" got a speed problem ;)
> Redrawing the whole screen in a 640x480x256 graphics mode is too slow on
> many
> machines. Is there a faster way? It consists of a 3 layers: background,
> car-layer and
> animation layer (like Bapple2). Dirty-rectangles doesn't work because
> the background
> always changes. Please help!

What do you mean by "many machines"? Are you using VESA, FreeBE/AF, or
Mode-X screen modes?

Also make sure that you're not clearing the screen, since you don't need to.
This takes a lot of processor time and isn't usually needed. Try a different
method of drawing the screen. Instead of double buffering, try page flipping
or triple buffering.

James Arthur - jaa AT arfa DOT clara DOT net
http://www.jado.org/users/arfa/
ICQ#15054819