Hi, I'm running into performance troubles with an app I'm building because - apparently - the XFree server uses the CPU rather than DMA to transfer images from system to video memory. I'd like to transfer a 3MB image to the video card every 20ms (yet be able to use the CPU for other purposes too, thank you;). This turns out to be a problem.
People have suggested to use OpenGL to get DMA transfers to video memory, which sounds like good advice, but I'm having a hard time believing there's no Xserver / video card combination that supports DMA for the usual 2D operations! Are there any? As an alternative, are there decent (high performance and reliable) chipsets with on-board video (UMA, with frame buffer in main memory) with XFree support? The lack of a slow bus to video mem would nicely solve this performance problem :-). Finally, if OpenGL really is the way to go, which video card / X server do you think would work best? Note that this is for an 'embedded' app, I get to choose the hardware, so any hardware/Xserver combo that does the job will do. Thanks folks! - Reinoud _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
