lkml.org 
[lkml]   [1999]   [Feb]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Linux Graphics Architecture (format fixed)
Alan Cox wrote:

> > I simply think that *all* graphics within Linux should go through a device driver
> > to avoid hardware contention. If that is done, then there is no reason why an X
>
> What hardware contention ? At most you have mode switching issues. Acceleratioin is
> hardly such an issue.

What about a simple example where you set write a bit plane mask into a graphics
register, then write some data to the framebuffer? You can't have two programs doing
that at the same time!

This could easily occur if an X client were directly manipulating the framebuffer at the
same time the X server was doing the same, or if you switch away from X (with the server
still running...) and try to play a graphics game on the framebuffer console while your
kernel compiles!

Ben

Please CC: bennyb@ntplx.net



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:50    [W:0.046 / U:0.856 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site