Reading the SVG specs, I see that there is a big chunk of C code in the feTurbulence filter effect spec. What is the copyright status of this piece of code? Is it public domain? After all, it is inside the specs, would them sue us if we copy&paste it? If we can use it let me know the conditions so that I can try to implement this filter more easily.
the code is here: http://www.w3.org/TR/SVG11/filters.html#feTurbulence
Juca