Patch to mouse accel code

[Jim Gettys]

On Thu, 2004-11-11 at 15:18 -0500, Keith Packard wrote:
> Around 14 o'clock on Nov 11, Jim Gettys wrote:
> 
> > It would be better if the algorithm was coded to avoid floating point,
> > if it isn't too hard.
> 
> This isn't a performance problem; at 100Hz, any system should be able to 
> execute a few software FP ops.  

Yes, I don't think it is a huge deal.  Actually, integer/fp conversions
are often much slower than just a simple FP operation.

> As the existing X server arc and line 
> drawing code requires FP, I don't see a problem with having the mouse code 
> use it as well.


The X arc code that no applications use....


> 
> That said, code which can easily avoid FP is always nicer.
> 

Yup.  Exactly.

If we can't find equivalent integer code that is simple to understand,
I'm cool with doing it in FP...  Simple, understandable code is worth
a lot.

			- Jim