[vtk-developers] vtkImageReslice performance questions/improvemnts

[Sean McBride]

On Tue, 21 Sep 2010 17:47:12 -0600, David Gobbi said:

>That #if was originally for Itanium, but should work on most (maybe
>all?) 64-bit platforms, as long as they can efficiently convert double
>to 64-bit int.  In other words, looks good to me!

I had wondered if it was endian dependent.  So you're saying it should
work for ppc64 too then?  Though IIRC, int<->float is slow on ppc...

I have only tried x86_64 so far, and Instruments confirms it's faster
(not surprisingly).

>But maybe I should push it...

Sure!

>it also needs to use "vtkTypeInt64"
>instead of "long long" or some compilers will choke.

Are such compilers still supported?  Or was that only needed for the old
borland and VS versions?

Thanks,

-- 
____________________________________________________________
Sean McBride, B. Eng                 sean at rogue-research.com
Rogue Research                        www.rogue-research.com 
Mac Software Developer              Montréal, Québec, Canada