Hi Mart, I was wondering if the OpenGL performance can be improved by:
(1) Using Single Precision FP instructions AND (2) Using 3DNOW instructions Main idea here is to improve the performance enough for UI and smaller Flash video renderings. Thank you. Dhimant > Thx. > > Dhimant Bhayani > > > -----Original Message----- > From: Mart Raudsepp [mailto:[email protected]] > Sent: Monday, March 02, 2009 12:02 AM > To: Dhimant Bhayani > Cc: 'alpha_one_x86'; [email protected] > Subject: RE: [Xorg-driver-geode] Support dri2? > > On P, 2009-03-01 at 17:01 -0800, Dhimant Bhayani wrote: > > DRI, DRM or DRI2 would be useful for OPEN GL (GLX). > > More and more software is using Open GL and performance > > of LX is graphics is not very good due to lack of support > > for the above mentioned modules. > > OpenGL performance is not very good because > > a) Geode LX has no hardware GL support _at all_ > b) software OpenGL via mesa software driver is slow because it currently > uses double precision floating point instructions extensively, for which > GeodeLX needs to do multiple passes through the pipeline with CPU > microcode, as it can do directly only single precision floating point > instructions in one pipeline cycle. > > > Regards, > Mart Raudsepp > _______________________________________________ Xorg-driver-geode mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-geode
