[cairo] [Pixman] Floating point API in Pixman

[cu]

One thing to consider is instruction mix. By switching from fixeds to
floats pixman changes the overall instruction mix of the application it
is being used in. If application itself makes significant use of FPU the
overall result may be a slowdown rather than speedup.

Whatever you do, guys - please please don't make things slower :)
--C

James Cloos wrote:
> I suspect using floats would be *much* better than the existing fixeds
> on modern x86_64 systems.  But fixed will remain important on smaller,
> lighter systems for some time to come.
>
> -JimC
>