[Xprint] Re: Unified video+print Xserver / was: Re: Modularization mailing list and initial strawman proposal

[Julien Lafon]

On Sun, 27 Mar 2005 11:00:58 +0200, Egbert Eich <eich at suse.de> wrote:
> Roland Mainz writes:
>  >
>  > The all-in-one video-print Xserver was always there since X11R6.3. It's
>  > just hidden away in on of the build options in xc/config/cf/X11.tmpl.
>  > AFAIK it was originally debated and favored by one of {Sun, HP} but I do
>  > not remember the details anymore. One side was favoring per-user Xprint
>  > servers (e.g. one per user and therefore an integrated (or sometimes
>  > called "unified") solution) and the other side "global" ones with a
>  > seperate print server (which is less resource hungry on multiuser
>  > systems (Xterminals, SunRay etc.) and allows to run the Xprint server on
>  > the print server machine directly instead of having each workstation
>  > running it's own copy). In the meantime (e.g. since X11R6.3) HP added a
>  > third option for HP/UX - having one Xserver which can either run in
>  > video mode OR (=XOR) print mode (I am not sure whether it allows having
>  > both video and print screens running at the same time like the current
>  > Xorg code allows).
> 
> Having video and print active in a single threaded Xserver would force
> video output to wait for the print rendering to finish.
Xprint applications are scheduled by the X server as normal X clients
and do not behave differently. I do not see a different of having two
video cards or one video card and a print screen in one Xserver.

Julien
-- 
Julien Lafon
Senior Staff Engineer, Hitachi