From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: R128 Scaling. From: Michel =?ISO-8859-1?Q?D=E4nzer?= To: Stefan Berndtsson Cc: linuxppc-dev@lists.linuxppc.org In-Reply-To: <87662rrcry.fsf@hades.nocrew.org> References: <878z7nuamf.fsf@hades.nocrew.org> <1018963230.1590.2438.camel@tibook> <87662rrcry.fsf@hades.nocrew.org> Content-Type: text/plain; charset=ISO-8859-1 Date: 16 Apr 2002 15:40:31 +0200 Message-Id: <1018964431.1590.2722.camel@tibook> Mime-Version: 1.0 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: 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/