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

["Daniel P. Berrange" <berrange redhat com>]

On Wed, Dec 19, 2007 at 10:49:37AM -0500, Anthony Liguori wrote:
> 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.

I've come across gtkglext which seems to be used in a few programs

http://www.k-3d.org/gtkglext/Main_Page

Dan.
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