From: derek AT algonet DOT se (Christian Granström)
Newsgroups: comp.os.msdos.djgpp
Subject: Linear FB ..vs.. Banking???
Date: Mon, 30 Jun 1997 13:01:33 GMT
Organization: RAGE
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To: djgpp AT delorie DOT com
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Ok this is not a real djgpp question but anyway!

Im currently writing a class to handle vesa compatible videocards.
This ones just for my own amusement and for producing demos
in a future so don't come with that "get Allegro" I am doing this
for fun OK..

But this is my problem:

I have been coding demos on the Amiga since the late 80:s.
To avoid flicker on the Amiga you just keep two buffers
in your videomemory. Then you switch between those during
a vertical blanking.

On the pc this seems to be a lot more complicated. The method
I used on the Amiga could be compared to banking or...?

But using a Linear Framebuffer is much easier. But then you
have to move all data from a buffer into the videomemory wasting
a lot of cpu power in larger resolutions.

Which technique is the best one to use on the pc???
Which technique is the most common in games an demos today???
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      Christian Granström, Bryggerigatan 4A, 733 34 Sala, Sweden
    derek AT algonet DOT se, christiang AT pasdata DOT se, www.algonet.se/~derek
                 +46(0)22477312, +46(0)704961587
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