touchscreens in multiscreen setups

Daniel Stone daniel at fooishbar.org
Fri Dec 18 07:39:05 PST 2009


Hi,

On Thu, Dec 17, 2009 at 10:35:16PM -0800, Keith Packard wrote:
> I'd say tablets and touch screens should report raw device coordinates
> and let the X server transform them as appropriate. It'd be really cool
> if we could make all absolute devices report position in floating point
> using a [0..1] range on each axis. I think. The X server would then
> transform those as appropriate. I think all that would take is a new
> PostMotionEvent function that took doubles instead of ints; fixed
> drivers would use that, broken drivers would continue to report
> coordinates as they do today.

Modulo floating point, this is how it's happened since approximately
forever ...

Cheers,
Daniel
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