*BSD News Article 27080


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From: terry@cs.weber.edu (Terry Lambert)
Newsgroups: comp.os.386bsd.apps
Subject: Re: DOOM for X
Date: 11 Feb 1994 05:31:02 GMT
Organization: Weber State University, Ogden, UT
Lines: 21
Message-ID: <2jf56m$7r@u.cc.utah.edu>
References: <760732951snz@valent.demon.co.uk> <JKH.94Feb8224637@whisker.hubbard.ie>
NNTP-Posting-Host: cs.weber.edu

In article <JKH.94Feb8224637@whisker.hubbard.ie> jkh@whisker.hubbard.ie (Jordan K. Hubbard) writes:
>In article <760732951snz@valent.demon.co.uk> mark@valent.demon.co.uk (Mark Valentine) writes:
>   Apparently id's Dave Taylor (working in his spare time) has it running
>   under XFree86 2.0 (using the shared memory extensions).

>Knowing what DOOM does to achieve shading and motion effects on a standard
>VGA card, I have a REALLY HARD TIME believing that this could work under
>X!  This seems like serious rumor material to me!

I think the "shared memory extensions" he's referring to allow the mmap'ing
of a window region into an app; if so, he can do anything you can do with
a flat frame-buffer interface, and just as fast as if it were running under
DOS (well, that is until it gets preempted to run the other 50 processes
on your machine -- then again DOS is "safe" from that.... 8-)).


					Terry Lambert
					terry@cs.weber.edu
---
Any opinions in this posting are my own and not those of my present
or previous employers.