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

[Simon Thum]

Am 06.05.2010 18:49, schrieb Keith Packard:
> On Thu, 06 May 2010 16:58:22 +0200, Éric Piel <E.A.B.Piel at tudelft.nl> wrote:
> 
>> It would only require to find the best way to apply the matrix on the
>> values received from relative devices, right?
> 
> It seems like the only sensible plan for a projective transform would be
> to apply the transform after the coordinates have been integrated into
> absolute form.
While that's true, a sensible subset of transforms could be applied
directly onto relative axes. One would need to beef up the sub-pixel
motion buffers a bit, but it's doable.