GIF files have a single canvas size, and then each included bitmap has its own
dimensions as well as offsets relative to the canvas.
Files saved by Grafx2 could be made smaller by checking the smallest rectangle
that isn't made of "background color"; or for animation layers beyond the
first: the smallest rectangle that has any changes compared to previous frame.
The difference wouldn't be important for single images, but for large
animations it can be very significant : One of the animations by Stickman was
5x bigger when re-saved by Grafx2.
Checking this would take more time, but then there would be less data to
encode, and with the reduced disk access it might even save some time. The time
gain would be meaningful for the safety backups that happens every minute, when
saving huge files.
Original issue reported on code.google.com by yrizoud on 9 Oct 2012 at 11:24
Original issue reported on code.google.com by
yrizoudon 9 Oct 2012 at 11:24