On Friday, 6 Apr 2001, Ernst Lippe wrote: > Sometime ago I wrote a piece of code that can handle neighborhoods > without fetching tiles twice. I needed this because I was applying > convolutions where I needed a neighborhood of say 20x20. Basically what > my code does is maintain a buffer that holds two rows of tiles plus some > extra for the vertical neighborhood. It handles those nasty details like > adding borders and fetching tiles. It works for my plugin but it must > still be documented and some missing features must still be implemented. > There are several filters where it could potentially be used, so if > anyone is interested I could try to clean it up. Actually, the core could do with a tile convolution, since currently it copies data into a tempbuf before convolving it. This makes some tools more effificient (or incorrect) eg iscissors. Austin
