Recommend display method for high speed data update?

From: Frank Miles (fpm_at_u.washington.edu)
Date: 01/13/05

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    Date: Thu, 13 Jan 2005 17:37:58 +0000 (UTC)

    We are going to be putting together a display system for some physiological
    data. Included are some neural data, and some of the investigators really
    want to be able to see _every_ neural event, in detail. Ok, most events
    will overlay, but they want to be able to see anomolous-shaped events within
    a stream of data, typically displayed at 200us or 500us/screen-width
    equivalent. Some of the neurons in the areas of interest can fire in bursts
    to over 1000/sec. We have some special-purpose hardware to get the data;
    assume that is not a problem.

    We will probably simulate a variable persistence display to get around the
    limited frame rates of normal video displays.

    In the past we've used SvgaLib for some related applications, but this
    software seems less well supported with time. It would probably be better
    in terms of long term support to use something within X-windows. A
    memory-mapped display would seem reasonable, but this doesn't seem kosher
    in a Linux environment. Most of the "graphic display" packages really seem
    focused on providing buttons, entry fields, and other widgets that are
    completely unneeded in this application. Some text display will be needed
    but this is pretty minor.

    Ok, that should be enough to show you how stupidly I'm approaching this
    problem. What would you use to implement this display function? Or is
    this completely insane? Is special-purpose hardware necessary? (I'd hoped to
    use a previously acquired Matrox G400 card with a generic LCD monitor).

    Thanks for your insights...

            -frank 

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