From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: Re: [Linux-fbdev-devel] Redesign of kernel graphics interface Date: Fri, 14 May 2004 21:08:14 +0300 Sender: mesa3d-dev-admin@lists.sourceforge.net Message-ID: <20040514180814.GA18297@sci.fi> References: <20040514172011.GA11990@pegasos> <20040514175135.41336.qmail@web14921.mail.yahoo.com> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <20040514175135.41336.qmail@web14921.mail.yahoo.com> Errors-To: mesa3d-dev-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="iso-8859-1" To: dri-devel , mesa3d-dev , fb-devel On Fri, May 14, 2004 at 10:51:35AM -0700, Jon Smirl wrote: > Just look at this picture and you can see the trend of 2D vs 3D (coproc= essor > based) graphics. > http://www.de.tomshardware.com/graphic/20040504/images/architecture.gif > Within one or two generations the 2D box is going to be gone. >=20 > If Linux wants to stay current with technology we have to start using t= he > coprocessor features of the GPU. Most of the benchmarks I have seen sho= w > coprocessor vs programmed at 100:1 speed differential. This is also a > competitive problem, Microsoft and Apple have both decided to go with t= he GPU > coprocessor this year.=20 I don't understand you GPU vs. PIO comparisons. You can use the 2D engine= =20 with DMA as well. And at least with older cards the 2D engine is clearly=20 faster than the 3D engine (~100% faster for blits on my G400) so trying t= o=20 bypass it is just stupid. > I said OpenGL is the only accelerated API available on Linux. Can you n= ame > another? DirectFB. > There is a little acceleration in framebuffer, but I don't know of any > others. Also, software mesa works just fine to provide OpenGL on dumb 2= D cards. Using unaccelerated OpenGL for 2D rendering doesn't sound exatly useful.=20 --=20 Ville Syrj=E4l=E4 syrjala@sci.fi http://www.sci.fi/~syrjala/ ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click