From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michel =?ISO-8859-1?Q?D=E4nzer?= Subject: Re: framebuffer ioctl Date: Tue, 07 Sep 2004 11:52:00 -0400 Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <1094572321.6095.10.camel@admin.tel.thor.asgaard.local> References: <413A3735.9E7D2F11@orpatec.ch> <413B4925.5000706@comcast.net> <200409060926.07163.adaplas@hotpop.com> <413CC0EA.8070709@comcast.net> <9e4733910409061402372095b1@mail.gmail.com> <1094505860.31465.211.camel@admin.tel.thor.asgaard.local> <9e47339104090707172cdc258d@mail.gmail.com> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1C4uTB-00045V-Nd for linux-fbdev-devel@lists.sourceforge.net; Tue, 07 Sep 2004 21:54:09 -0700 Received: from [63.144.52.41] (helo=080relay.CIS.CIS.com) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.34) id 1C4uTB-0002rx-0R for linux-fbdev-devel@lists.sourceforge.net; Tue, 07 Sep 2004 21:54:09 -0700 In-Reply-To: <9e47339104090707172cdc258d@mail.gmail.com> Errors-To: linux-fbdev-devel-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: linux-fbdev-devel@lists.sourceforge.net On Tue, 2004-09-07 at 10:17 -0400, Jon Smirl wrote: > The numbers compare two peices of software that exist. Sure you could > probably write a super optimized library for CPU based drawing in 2D > mode that would be faster, but this library doesn't exist. No matter > what you do using the GPU to draw is always going to beat using the > CPU by a wide margin because of the memory bandwidth difference. >=20 > Would Cairo on hardware OpenGL vs Cairo on software only OpenGL be a > better comparison? Those ratios are even worse. Examples of fair comparisons would be: Software rendered OpenGL vs. software rendered Render extension Hardware-accelerated OpenGL vs. hardware-accelerated Render extension ... > Why does everyone want to write another accelerated drawing library > when we already have a really good one that follows standards and has > excellent documentaition? Why not help integrate DRM and fbdev > instead. All I'm saying is that it reflects badly on you if you need to resort to skewed numbers. --=20 Earthling Michel D=C3=A4nzer | Debian (powerpc), X and DRI develop= er Libre software enthusiast | http://svcs.affero.net/rm.php?r=3Ddaenzer ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click