cursor handling and updates inside DRM

[Dave Airlie]

On Fri, Jul 11, 2008 at 1:17 PM, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> On Thursday, July 10, 2008 3:59 pm Tiago Vignatti wrote:
>> Simon Thum escreveu:
>> > But all this in the kernel is an impedance mismatch to me. What could it
>> > buy us we don't have today?
>>
>> Improve heavy-load behavior -- no jumping pointer.
>>
>> (BTW, your mouse acceleration proposal [0] doesn't do it at all.)
>>
>>
>> Cheers,
>>
>> [0] https://bugs.freedesktop.org/attachment.cgi?id=17545
>>      This doc says that it improves the heavy-load behavior, but I'm
>> failing to see it. Can you be more specific?
>
> 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,

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

Dave.

> Jesse
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