From: leathm AT solwarra DOT gbrmpa DOT gov DOT au (Leath Muller) Message-Id: <199705140128.LAA00870@solwarra.gbrmpa.gov.au> Subject: Re: OpenDOS graphics drivers To: pierre AT tycho DOT com Date: Wed, 14 May 1997 11:28:26 +1000 (EST) Cc: opendos AT delorie DOT com In-Reply-To: from "Pierre Phaneuf" at May 13, 97 08:29:22 pm Content-Type: text Precedence: bulk > >> Nothing *really* fast will work on NT. On NT, ports and memory > >> protection prevents user space programs from access video hardware. > > > > On the contrary. DirectX up to version 2 works pretty well in NT 4, > > and the soon to be released Service Pack 3 will apparently add > > version 3 support as well. > Yes, but a 32-bit DOS program with a DOS extender beats DirectX to a pulp > any day, so there's *still* nothing really fast on NT. It depends... :) To give an example Quake runs at 28 FPS on my computer in a window at 640x480 under 95/NT 4, and at the same resolution runs at 14 FPS under DOS... (it doesn't really do that, but thats another story... ;) Anyway, the point is DirectX is designed to use hardware acceleration transparently on all machines running DirectX, something DOS can't keep up with. Of course, DirectX sux but thats something else... :) I think its important to remember Win95 _is_ basically a 32bit DOS extended program (that being a _very_ loose statement... :) Leathal.