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  From: Marcus Sundberg <mackan@stacken.kth.se>
  To  : ggi-develop@eskimo.com
  Date: Mon, 24 May 1999 20:13:57 +0000

XGGI on 3DFX

Hi,

I've now enabled DirectBuffer support for the Glide target of LibGGI.
(Acceleration is ofcourse still available).
This means that you can now run XGGI on a Voodoo Graphics or Voodoo II
card! I'm writing this in XGGI running multiheaded on my Cirrus Logic
card using KGIcon and my Voodoo II board (using the Glide target
ofcourse).

Some notes:
This is not strictly compliant with the Glide API spec, but nevertheless
it works fine here on my Voodoo II card, so please test this.
As the 3DFX framebuffer is always in 16bpp you can only use DirectBuffer
in 16bpp mode.
As Glide mapps in all the videomemory of the card XGGI will have a
huge memory footprint when using the Glide target. This is the video
memory, not main RAM showing.
As X is just 2D you can do 800x600 resolutions on Voodoo Graphics
and 1024x768 on Voodoo II.
SLI configurations does not have a linear framebuffer, so you can't
use XGGI on those.

//Marcus
-- 
-------------------------------+------------------------------------
        Marcus Sundberg        | http://www.stacken.kth.se/~mackan/
 Royal Institute of Technology |       Phone: +46 707 295404
       Stockholm, Sweden       |   E-Mail: mackan@stacken.kth.se

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