[Inkscape-devel] Faster rounding, might break?

Johan mailed me a link to this site: http://stereopsis.com/sree/fpu2006.html Based on the routine proposed there I just implemented faster rounding in Gaussian blur (the IIR code uses it extensively). In my tests this speeds up blurring by about 10-20%, not insignificant for such a small change. However, the procedure does make use of the internal representation of a double, so I'm a little worried about it breaking on different architectures.

If you use a non-Intel architecture it would be great if you could try out the Gaussian blur currently in bzr (it's rev. 10144) and see if anything goes wrong.