[Openexr-devel] AltiVec functions that operate on "half"

[Derek Ledbetter]

I wrote two functions that use AltiVec (the vector processing unit on
the PowerPC G4 and G5) to convert between "half"s and "float"s.  I found
that converting a large array of "float"s to "half"s is about three
times faster using AltiVec, and it's about 1.7 times as fast going the
other way.  I figure that they should be useful for other functions too.

<http://www.serve.com/derekl/openexr/AltiVecHalfConversion.html>
--
Derek Ledbetter
address@hidden