Hi, Tor Lillqvist <tml@xxxxxx> writes: > Henrik Brix Andersen writes: > > Using gimp_pixel_rgn_set_row() may work for some images, but since > > GdkPixbufs internally have aligned data which may result in padding > > garbage inserted between two rows, you will need to use > > gdk_pixbuf_get_rowstride() and iterate over the rows one by one. > > But couldn't one at least check if gdk_pixbuf_get_rowstride() > indicates that there isn't any padding, and in that case use > gimp_pixel_rgn_set_rect()? At least on my aging PIII-450, the > difference in speed is huge. I am surprised that this makes any noticeable difference and I think it would be worth to check the reason for this. A much simpler optimization would probably to set a reasonable tile_cache size. At the moment the new screenshot plug-in fails to do that. Sven