I wrote some patches to improve that insane double-buffer implementation, but it was rejected. In fact ... nobody really looked at it as far as I can remember. - Clemens 2010/1/27 Robert Gibbs <gibbsrc@xxxxxxxxx>: > I am running into a severe performance degradation when using the built in > GtkDrawingArea double buffering to a 1600x1200 window. The program sets a > default priority idle handler which calls gtk_widget_queue_draw. The expose > event originally would draw about 1000 polygons, but I commented out the > drawing portion and still saw the same poor performance. The best > performance I can get is about 10 frames per second. > > If call GTK_WIDGET_UNSET_FLAGS (drawing_area, GTK_DOUBLE_BUFFERED), then use > my own pixmap for double buffering, the performance goes up to 50 frames per > second. > > Can anyone tell me why the built-in double buffering would yield such poor > performance? > > > > _______________________________________________ > gtk-list mailing list > gtk-list@xxxxxxxxx > http://mail.gnome.org/mailman/listinfo/gtk-list > > _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
