daniel sheltraw wrote:
>
> Hello rtl listees
>
> Can one do realtime graphics (obvious restrictions of screen refresh rate
> aside) by simply writing to video memory in
> ones RT kernel code. What happens when linux processes are then scheduled?
>
> Thanks
> Daniel
Hi Daniel,
If you go to http://www.realtimelinux.org/CRAN/examples and get the
rtexamples.tar.gz there is a sinewave example in there. In this
example, the RT module writes directly to the video adapter after user
space has set it up in 320x200 graphics mode. If you do this kind of
thing, you need to make sure that no other process is trying to write to
the display or you will end up with a mess.
Regards, Stuart
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