[Sc-devel] float->int casts in OscUGens.cpp (and elsewhere?)

["Ross Bencina" <rossb-lists@xxxxxxxxxxxxxx>]

Hi Guys



I notice that OscUGens.cpp contains a number of direct downcasts from double 
to int32, such as line 1840:



phase += (int32)(cpstoinc * ZXP(freqin));



I assume it's been discussed here before, but this is a particularly 
inefficient thing to do on IA32 processors. Luckily this assignment isn't 
too sensitive to which way the rounding goes, so there are some simple 
assembly solutions (such as using fistp to store the intermediate value into 
an integer location). I think there are even some standard C99 functions...



Is anyone in a position to take care of this?



Cheers

Ross.