From: "Michel Dänzer" <michel@daenzer.net>
To: Stefan Berndtsson <stefan@nocrew.org>
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: R128 Scaling.
Date: 16 Apr 2002 15:40:31 +0200 [thread overview]
Message-ID: <1018964431.1590.2722.camel@tibook> (raw)
In-Reply-To: <87662rrcry.fsf@hades.nocrew.org>
On Tue, 2002-04-16 at 15:30, Stefan Berndtsson wrote:
>
> > Note that fullscreen doesn't require DGA per se. Direct framebuffer
> > access is generally slow, xmame might be better off using normal X
> > images or pixmaps and relying on an optimized ImageWrite acceleration in
> > the driver.
>
> I know you technically, don't need DGA for fullscreen, but afaik, MAME
> supports -x11-mode 0 or 1, where 0 is window, and 1 is DGA. Comparing the
> two on a stationary machine, where LCD-scaling isn't an issue, DGA is
> faster in every case.
>
> Also comparing small SDL-hacks in the same environment, DGA beats non-DGA
> hands down.
Is that with a driver with optimized ImageWrite acceleration? I don't
think any stock XFree86 driver is really optimized there yet, I'm
working on radeon now and the results should be easily applicable to
r128.
--
Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member / CS student, Free Software enthusiast
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-04-16 13:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-16 11:49 R128 Scaling Stefan Berndtsson
2002-04-16 12:32 ` Adrian Cox
2002-04-16 12:53 ` Stefan Berndtsson
2002-04-16 13:12 ` Michel Dänzer
2002-04-16 13:55 ` Adrian Cox
2002-04-16 14:01 ` Geert Uytterhoeven
2002-04-16 14:13 ` Adrian Cox
2002-04-16 13:20 ` Michel Dänzer
2002-04-16 13:30 ` Stefan Berndtsson
2002-04-16 13:40 ` Michel Dänzer [this message]
2002-04-16 13:46 ` Stefan Berndtsson
2002-04-17 5:44 ` Ani Joshi
2002-04-17 11:54 ` Michel Dänzer
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