Re: [gtk-vnc-devel] VNC sessions on a 3-d spinning cube

[Anthony Liguori <anthony codemonkey ws>]

Daniel P. Berrange wrote:
> On Tue, Dec 18, 2007 at 11:04:12PM -0500, Anthony Liguori wrote:
>   
> > Hi Dan,
> >
> > Daniel P. Berrange wrote:
> >     
> > > One evil thought, led to another even more evil thought, and thus I ended 
> > > up writing a VNC viewer program which displays multiple VNC sessions on a 
> > > spinning cube....
> > >
> > > http://berrange.com/personal/diary/2007/11/vnc-sessions-on-3-d-spinning-cube
> > >
> > > It doesn't work with the current version of GTK-VNC. I needed to add a
> > > couple of Anthony's patches to propagate mouse events. I also need to add
> > > an API for sending fake mouse events, and a nnew signal to get notices of
> > > the VNC region updates so I could refresh the textures. I don't claim it
> > > is fast/efficient. It is fun though. I think its probably better to write
> > > it to interact directly with the GVNC class, rather than hooking into the
> > > VNC DIsplay frontend, since Clutter doesn't technically need to use GTK
> > > at all - it talks OpenGL & X11 directly. I used the Clutter<->GTK bridge
> > > for this hack though.
> > >  
> > >       
> > So I'm actually very interested in trying to merge in what you need to 
> > interact with Clutter.  I want to refactor gvnc to be a GObject which 
> > you could then presumably easily hook up to Clutter.  Can you take a 
> > look at the gvnc interface and see if that, as a GObject, would be 
> > sufficient?  I am interested in using Clutter to provide scaling support 
> > and perhaps some other interesting effects.
> >     
>
> After playing around with it a little I'm not sure that using Clutter
> as our primary scaling engine is the right thing todo. Clutter is really
> a standalone graphics/media engine based on top of glib/gobject. The
> stuff I used is a Clutter<->GTK bridge which is rather fragile and fairly
> limited. 
>
> I think it could be interesting to create a pure Clutter VNC widget that
> used the lowlevel gvnc stuff directly, bypassing the GTK bits in our
> existing code. Likewise if we want to add OpenGL accelerated scaling
> to our existing GTK bits I think we shouldn't use Clutter for that.
>   

Any suggestions for integrating OpenGL with gtk?  I looked recently but 
it seemed like gtkglarea was unmaintained.

Regards,

Anthony Liguori

> So I really see two top level widgets - one Clutter based and one GTK
> based. Both using the same underlying GVNC gobject. 
>
> Dan.
>