Re: framebuffer ioctl
From: Jon Smirl <hidden>
Date: 2004-09-07 14:17:42
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. Would Cairo on hardware OpenGL vs Cairo on software only OpenGL be a better comparison? Those ratios are even worse. 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. On Mon, 06 Sep 2004 17:24:20 -0400, Michel Dänzer [off-list ref] wrote:
On Mon, 2004-09-06 at 17:02 -0400, Jon Smirl wrote:quoted
Check out the Cairo benchmarks. The OpenGL drivers can beat the performance of 2D drivers 100:1 and some cases 400:1. OpenGL uses the GPU to do the drawing instead of the main CPU.Please stop reiterating these bogus (optimized OpenGL vs. unoptimized software-rendered Render extension) numbers, unless you think bogus numbers are a good way to make a point. -- Earthling Michel Dänzer | Debian (powerpc), X and DRI developer Libre software enthusiast | http://svcs.affero.net/rm.php?r=daenzer ------------------------------------------------------- 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_idP47&alloc_id808&opclick _______________________________________________ Linux-fbdev-devel mailing list Linux-fbdev-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-fbdev-devel
-- Jon Smirl jonsmirl@gmail.com ------------------------------------------------------- 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_idP47&alloc_id808&op=click