[kwlug-disc] how to build a linux-based video image generator?

Robert P. J. Day rpjday at crashcourse.ca
Wed Dec 31 17:45:29 EST 2008


On Wed, 31 Dec 2008, Kyle Spaans wrote:

> Generate signals as in draw random crap of your choice to the screen?
>
> Wouldn't you need to get down into the video card drivers for that? Or
> do something like mmap some of the video memory, and starting writing
> ``patterns'' to it?

  it's more than just setting colours at a pixel-by-pixel level.  it's
being able to tweak video timings, colour gamma, refresh rates and so
on.  so all of that would obviously start with a video card that's
capable of that kind of manipulation.

rday



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