cursor handling and updates inside DRM

[Jesse Barnes]

On Thursday, July 10, 2008 9:14:20 pm Dave Airlie wrote:
> > Right, and it's actually fairly common in other OSes.  It sounds like the
> > biggest chunk of additional code will be dealing with acceleration; I'm
> > not sure how complex the latest algorithms are...  Also input
> > transformation is an unknown, but it's a bit dubious anyway...
>
> Input transform shouldn't matter, as long as you aren't warping the
> cursor around corners etc.. the mouse should still move on the screen
> the same,

Yeah, talked with Keith about this yesterday; I was worried input transform 
might actually constrain the cursor to a given trap or something.  Since 
that's not the case there should be no problem.

> its only when you click or drag something with it that the X server
> needs to transform it to get to the right window.

There's also cursor warping, but that's easy enough to handle with an ioctl.

Keep up the good work, Tiago!

Thanks,
Jesse