I should point out that the draw_func may be called by Gtk whenever it needs, The best is to have the timer callback change the "current" bitmap and call gtk_widget_queue_draw_area(). Then on the drawing callback of the drawing area you just paint the "current" bitmap.
2018-08-01 15:44 GMT+02:00 Luca Bacci <luca.bacci...@gmail.com>: > I suggest you use GStreamer, you can build a video by pushing bitmap > frames and it does everything else for you. > > Otherwise, you can animate a DrawingArea. Set up a 60hz timer on your own. > The timer callback simply calls > gtk_widget_queue_draw_area() > <https://developer.gnome.org/gtk3/stable/GtkWidget.html#gtk-widget-queue-draw-area>. > Then, on the draw_func of your drawingarea you display the bitmaps, one > after another. > That's the simplest solution but can have lower timing quality > > Luca > > > 2018-08-01 14:18 GMT+02:00 R0b0t1 via gtk-list <gtk-list@gnome.org>: > >> On Wed, Aug 1, 2018 at 3:45 AM, Paul Davis <p...@linuxaudiosystems.com> >> wrote: >> > >> > 60Hz is a reasonable common refresh rate, but it's not universal, and >> you >> > probably should not rely on it being the context in which your program >> runs. >> > >> >> ... I'm not, the update is driven by frame decoding elsewhere. I >> pointed it out because doing it at ~60Hz is going to be harder than >> say 30Hz or 25Hz and can dictate what is most proper. >> _______________________________________________ >> gtk-list mailing list >> gtk-list@gnome.org >> https://mail.gnome.org/mailman/listinfo/gtk-list >> > >
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