command: make window-scale property observable

Add a generic mechanism to the VO to relay "extra" events from VO to
player. Use it to notify the core of window resizes, which in turn will
be used to mark all affected properties ("window-scale" in this case) as
changed.

(I refrained from hacking this as internal command into input_ctx, or to
poll the state change, etc. - but in the end, maybe it would be best to
actually pass the client API context directly to the places where events
can happen.)

1 files changed, 10 insertions, 0 deletions

diff --git a/player/playloop.c b/player/playloop.c
index 22cc12f70d..85d962fffe 100644
--- a/player/playloop.c
+++ b/player/playloop.c
@@ -670,6 +670,14 @@ static void handle_cursor_autohide(struct MPContext *mpctx)
     mpctx->mouse_cursor_visible = mouse_cursor_visible;
 }
 
+static void handle_vo_events(struct MPContext *mpctx)
+{
+    struct vo *vo = mpctx->video_out;
+    int events = vo ? vo_query_events(vo, VO_EVENTS_USER, true) : 0;
+    if (events & VO_EVENT_RESIZE)
+        mp_notify(mpctx, MP_EVENT_WIN_RESIZE, NULL);
+}
+
 void add_frame_pts(struct MPContext *mpctx, double pts)
 {
     if (pts == MP_NOPTS_VALUE || mpctx->hrseek_framedrop) {
@@ -884,6 +892,7 @@ void run_playloop(struct MPContext *mpctx)
     }
 
     handle_cursor_autohide(mpctx);
+    handle_vo_events(mpctx);
     handle_heartbeat_cmd(mpctx);
 
     fill_audio_out_buffers(mpctx, endpts);
@@ -995,6 +1004,7 @@ void mp_idle(struct MPContext *mpctx)
     mpctx->sleeptime = 100.0;
     mp_process_input(mpctx);
     handle_cursor_autohide(mpctx);
+    handle_vo_events(mpctx);
     update_osd_msg(mpctx);
     handle_osd_redraw(mpctx);
 }