Re: Wondering about PC graphics that implements SGI style virtual graphics

2005-09-13 Thread Alan Cox
On Maw, 2005-09-13 at 12:24 +1000, Tim Long wrote: I have tracked down the orignal paper on the subject online at: http://www.cs.virginia.edu/~gfx/Courses/2002/BigData/papers/The% 20Graphics%20Pipeline/Virtual%20Graphics.pdf SGI were doing it before that paper, years before. I think Mark

Wondering about PC graphics that implements SGI style virtual graphics

2005-09-12 Thread Tim Long
Hi, I have been doing some research into the hardware design and implementation of the SGI visual workstation 320 and have noticed that most (all?) SGI graphocs hardware implements fast context switching of openGL threads/processes so that multiple apps can run simultaneously without a large

Re: Wondering about PC graphics that implements SGI style virtual graphics

2005-09-12 Thread Adam Jackson
On Monday 12 September 2005 22:24, Tim Long wrote: I am wondering if any PC level hardware implements the same features? For the ones that don't what sort of performance impact does it take switch GL threads if the pipeline has to be flushed on a context switch. I am guessing that at least

Re: Wondering about PC graphics that implements SGI style virtual graphics

2005-09-12 Thread Eric Anholt
On Mon, 2005-09-12 at 23:40 -0400, Adam Jackson wrote: On Monday 12 September 2005 22:24, Tim Long wrote: I am wondering if any PC level hardware implements the same features? For the ones that don't what sort of performance impact does it take switch GL threads if the pipeline has to be