GSoC project : multi-touch

[Peter Hutterer]

On Wed, Apr 01, 2009 at 02:14:02AM +0200, Detlev Casanova wrote:
> On Wednesday 01 April 2009 01:46:43 you wrote:
> > On Wed, Apr 01, 2009 at 01:24:55AM +0200, Detlev Casanova wrote:
> > > About the multitouch GSoC project, I was wondering about some things :
> > >   * would the project be about writing a new driver for multitouch
> > > touchpad, for multitouch tablets and also multitouch tables (working with
> > > a video camera) ?
> >
> > such a project should look at providing multitouch independent of hardware
> > support. so writing a driver is probably included to test the code, but how
> > the actual hardware works (video camera or resistive or ...) doesn't
> > matter.
> 
> Yes, that's what I thought.
> 
> > >  * is there already an API for this ? I mean, has it already been thought
> > > on how it should be designed ? XInput seems to have ways to do that
> > > (events can contain data and multiple information)
> >
> > no, there is no API. that's the tricky bit.
> 
> Mmmh, that's not what I thought, that's what prevented me writing a proposal 
> as I didn't really know how to put that together.
> 
> > >  * I now I'm a bit late but is there a mentor available for that project
> > > and would he/she mind talking about the project ?
> >
> > I've got a proposal for MT support by Ashish Kumar Rai in front of me and I
> > guess we'll beat it into shape until it's realizable. I don't know if GSoC
> > supports collaborative projects, but that might be worth investigating if
> > you want to work on this.
> 
> Unfortunately, no.
> Only one student per project but different projects can be related which would 
> make student work together.
> Such a "parallel" project could be writing some drivers or add a MT API in 
> libraries like Qt or GTK+.
> 
> > > Also, there are some howto's and other pages about XInput on the x.org
> > > wiki but I never see anything about XI2, so, are those for XI1 or XI2 ?
> >
> > There are no howtos on XI2 yet because it's still in motion.
> 
> About XI1, I suppose it will be dropped once XI2 is finished and implemented. 
> So, MT will be for XI2, right ?

XI1 support won't be dropped anytime soon, but there won't be any 1.x protocol
additions anymore.
 
Cheers,
  Peter