x in om2007.2

Carsten Haitzler (The Rasterman) raster at openmoko.org
Sun Jul 27 16:48:02 CEST 2008

On Sun, 27 Jul 2008 15:24:41 +0200 Sten Kvamme <sten at kvamme.se> babbled:

>  From my point of view it's all about how many layers of abstraction  
> I want to have between my app and my screen. X11 is certainly  
> introducing a fat layer, and so is GTK+. The most extreme case I have  
> seen is Chuck Moore's Colorforth, where you have no layers at all,  
> you are dealing with the screen memory directly, there you can talk  
> about snappy.

it's not the layers. its what those layers do.

> Joe Armstrong made that clear to me with his Erlang GUI ex11. The app  
> is talking to the X11 server without additional layer than X11  
> itself. Made me realize that X11 isn't that bad, it's all about  
> layers piling up that is slowing things down.

it';s not the layers.. its WHAT the layers do.. and HOW they do it. look at EFL
(evas, edje etc.) they have LOTS of layers. eg:

app->etk->edje->evas->state engine->evas engine->xlib->xserver->graphics

but every layer there has a purpose.. and does something useful.. and it's a
matter of HOW you use the layers that makes a difference.

> /S
> On Jul 27, 2008, at 9:52 , sparky mat wrote:
> > kinda new here. i noticed that om2007.2 and asu are slower than qtopia
> > (the one from trolltech, not the x11 port). i presume its partly
> > because X is being used.
> >
> > would it make sense to alter gtk+ for om2007.2 to directly write to
> > screen? and prolly add some window management i guess.. or make X a
> > lot lighter.. are we using X.org or X11. what about TinyX?
> >
> > i'm not too familiar with most of the tech mentioned above, so I
> > apologise if i'm coming across as idiotic.
> >
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Carsten Haitzler (The Rasterman) <raster at openmoko.org>

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