[Bug 11846] tablet pressure sensitivity not working in Sai and many other key graphic applications

https://bugs.winehq.org/show_bug.cgi?id=11846

--- Comment #96 from Alistair Leslie-Hughes  ---
(In reply to Matteo Bruni from comment #94)
> (In reply to C0rn3j from comment #93)
> > Created attachment 63430 [details]
> > staging 4.0 PTH-660 +wintab32
> >
> > Wacom Intuos Pro M (PTH-660)
> > I drew 4 'lines' and made each cut off due to overpressure.
> > +wintab32, Wine staging 4.0
>
> Entirely a speculation without looking at the code at all, but from the log
> I get the feeling that maybe it's cutting off whenever pkNormalPressure goes
> above a certain threshold (32K?)

No, the issue appears to be the pressure range difference between windows
(0-1023 ) and Linux (0-64000).

I've updated the patchset to scale the values to range 0-1023, which makes gimp
happy at least.