[RFC] Multitouch support, step one

[Henrik Rydberg]

Jeremy Huddleston wrote:
> I actually like the idea of using the valuators to send the data over the wire.  Why not use the valuators to also send data like:
> 
> valuator 0  = core X
> valuator 1  = core Y
> valuator 2  = multi-touch 0 tracking id
> valuator 3  = multi-touch 0 group id
> valuator 4  = multi-touch 0 x
> valuator 5  = multi-touch 0 y
> valuator 6  = multi-touch 0 pressure
> valuator 7  = multi-touch 1 tracking id
> valuator 8  = multi-touch 1 group id
> valuator 9  = multi-touch 1 x
> valuator 10 = multi-touch 1 y
> valuator 11 = multi-touch 1 pressure

If this is the way you want to go, you might want to consider splitting the data
into a stream of events, such that you only need to define valuators for one
contact, then send the information for each each contact sequentially.

I would also consider using a lower-level protocol such as a buffered device
stream, to avoid the semantic multiplexing introduced by the above approach.

Henrik