On Wed, 2008-12-17 at 18:11 +1100, garrone wrote: > The mesa direct rendering with the intel driver appears to rely on > asychronous flipping. However the hardware, according to the 965 > documentation I have downloaded from the intellinuxgraphics site, is > capable of synchronous flips. > > (The kernel file i915_dma.c ors in the "ASYNC_FLIP" constant in the function > i915_dispatch_flip, invoked eventually by a call to glXSwapBuffers. > For a description of the hardware capability, > refer to volume 1 of the 965 graphics pdf files, searching for the > command MI_DISPLAY_FLIP) > > The application I am targeting has dual opengl windows, > each one running on a separate display, and covering the whole of that > display, from a single Intel graphics chipset.
This was working with synchronous flips at some point at least on i915/i945 hardware, but I think the functionality has been ripped out again because GEM didn't mix well with it. -- Earthling Michel Dänzer | http://tungstengraphics.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg