vo_wayland: share frame callbacks.

Define frame callback logic in wayland_common.c
As this should be used by opengl renderer as well.

Preferably drawing should be skipped entierly when no frame callbacks
are received. However, for now only swap buffers is skipped.

1 files changed, 5 insertions, 0 deletions

diff --git a/video/out/wayland_common.h b/video/out/wayland_common.h
index 5f0947f47d..d7c505290a 100644
--- a/video/out/wayland_common.h
+++ b/video/out/wayland_common.h
@@ -52,6 +52,11 @@ struct vo_wayland_state {
     struct vo *vo;
     struct mp_log* log;
 
+    struct {
+        struct wl_callback *callback;
+        bool pending;
+    } frame;
+
 #if HAVE_GL_WAYLAND
     struct {
         EGLSurface egl_surface;