[PATCHv2] dix: add 3x3 transformation matrix xinput property for multi-head handling

Peter Korsgaard jacmet at sunsite.dk
Thu May 6 08:25:50 PDT 2010


>>>>> "Éric" == Éric Piel <E.A.B.Piel at tudelft.nl> writes:

 Éric> Hi,

 Éric> I really like the idea of the patch. Do I understand correctly
 Éric> that the transformation applies only to absolute input devices?

 Éric> If so, it would still be a nice step towards allowing rotation of
 Éric> touchpads (and other relative devices), as described in this bug:
 Éric> http://bugs.freedesktop.org/show_bug.cgi?id=21129

 Éric> It would only require to find the best way to apply the matrix on
 Éric> the values received from relative devices, right?

Conceptionally I don't see any issues with applying the same transform
on relative devices after they are converted to absolute coordinates,
E.G. after moveRelative().

Unless I'm missing something?

-- 
Bye, Peter Korsgaard


More information about the xorg-devel mailing list