VGA 256 Color Programming

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#730

From: David Alan Steiger
Date: Tue, 14 Apr 1992 23:20

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This is a friend of mine so no flames please!

How do you double buff a 256 color 320x200 VGA screen?
Either my C compiler (quick c 2.5) doesn't support
this option or more likely I just don't know what
I'm doing.

I have done extensive graphics programming in C on the amiga,
so I do have some knowledge on the subject...but how the
hell do you double buffer an "_MRES256COLOR" screen?

Or, how can I copy the contents of a virual screen onto
screen memory fast enough to evade the raster?

(note: the included C funcs _setactivepage and _setvisualpage
don't work here)

     I would appreciate any help I can get on this,
     as I am starng from scratch here... 
                      Thanks, Chris

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Message-ID: <1992Apr14.232003.8766@koko.csustan.edu>

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Path: arc1-ca.pugleaf.net!sparky!uunet!dtix!mimsy!haven.umd.edu!ames!uakari.primate.wisc.edu!sal.wisc.edu!rat!koko.csustan.edu!ceti.csustan.edu!das
From: das@ceti.csustan.edu (David Alan Steiger)
Newsgroups: comp.os.msdos.programmer
Subject: VGA 256 Color Programming
Summary: Double Buffering a VGA 256 320x200 Screen
Message-ID: <1992Apr14.232003.8766@koko.csustan.edu>
Date: 14 Apr 92 23:20:03 GMT
Sender: das@ceti.csustan.edu
Organization: California State University, Stanislaus
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