Hi Cyrille,
thanks for committing the [pix_texture] bug. Here is attached the fast blur patch I'm working on. The patch is commented and pretty self- explainatory, I wrote down a list of bugs to be figured out (like the quality and repeat thing). I'm getting some nice results on osx, don't know about other platforms. I guess there is a lot of redundant stuff that could be optimized, tips and feedback are welcome.
http://www.mediafire.com/?7e8pgg5dc5j1jqr
Best, Guido