On Sun, Sep 09, 2018 at 02:57:30AM +0200, Magnus Bergman wrote: > Many fields of science deal with images of multi > gigabyte sizes. Ideally any image viewer should be able to handle these > too with the right plugin (probably using GEGL in that case). But I > think the problem with large images (say 12000x12000 or so) is giving > it to the application as a pixmap. From my own tests it seams it's fine > at least as long as the images are no bigger than the screen. So if the > drawing (and implicitly also scaling) is handed over to the loading > library (which in turn might hand it over to the plugin), this problem > can be avoided.
Even if one does decode the entire full resolution image into a tiled data structure (say, GeglBuffer), there's no need to create a Cairo surface for the entire image at 1:1 zoom. All that's needed is a surface to represent the visible area at the visible zoom. That's a lot more manageable. _______________________________________________ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
