hi, i am looking for a hardware setup which will enable me to do the following with directfb:
* use opengl with double buffering * sync to the monitor refresh interrupt (using blocking io, no polling) it is for an experiment related to perception-psychology, so timing is of utmost importance. it will probably involve some special purpose (serial port) hardware later. i want to run the graphics outside of X11 for timing issues. X11 and SCHED_FIFO do not mix that well. i tried raw framebuffer, but since it involves a lot of coordinate transforms i'm looking into the possibility to use directfb + gl the system will be bare bones: lowlat linux kernel + experiment app, so no problems with legacy software i hope. the graphics requirements are very simple, so an old or cheap card may be enough. i have: * ati rage 128 * matrox G450 * nvidia TNT * nvidia gforce4 Ti4200 i think all of them have interrupt based sync support. if necessary, i will buy new hardware. does anyone have a suggestion about a solution that will work, or one that hast the most chance to do so? i.e. i need to get something done, which is quite new to me :) cheers tom
