[RFC wayland] protocol: Add high-resolution wl_touch timestamp event

[Alexandros Frantzis]

On Wed, Nov 29, 2017 at 09:26:07AM +0200, Pekka Paalanen wrote:
> On Tue, 28 Nov 2017 14:16:32 +0000
> Daniel Stone <daniel at fooishbar.org> wrote:
> 
> > Hi,
> > 
> > On 24 November 2017 at 11:59, Pekka Paalanen <ppaalanen at gmail.com> wrote:
> > > On Tue, 21 Nov 2017 15:45:48 +0200
> > > Alexandros Frantzis <alexandros.frantzis at collabora.com> wrote:  
> > >> 2. Should we introduce similar timestamp events for keyboard and pointer?  
> > >
> > > No, unless someone actually has a use for them. That brings the
> > > question, why are you only interested in touch timestamps and not
> > > keyboard and pointer?
> > >
> > > Why are keyboard and pointer latency not interesting to you?  
> > 
> > I would very much suggest doing so, yeah. Having timestamps for
> > high-frequency/resolution mice seems like a real need. Given the need
> > to correllate the event streams (e.g. 'is someone holding down Ctrl
> > whilst I scroll?'), it makes it easier for clients if we have
> > comparable timestamps between the two.
> 
> Right, let's have them for all the timestamped core input events, not
> only touch.
> 
> 
> Thanks,
> pq

Hi,

thank you all for your thoughts and suggestions. I have pushed a new RFC
for a separate protocol providing this functionality:

https://lists.freedesktop.org/archives/wayland-devel/2017-November/035980.html

Thanks,
Alexandros