Provide a function to query for outstanding OSD events.

This function shall be used to poll the number of outstanding OSD
events from a certain point in time on until the reported number
is 0. At that point in time, the content on screen is identical to
a certain state of the stream, at which for example, a hardcopy may
be taken.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/xine-engine/xine.c b/src/xine-engine/xine.c
index ce7713810..840c91f3f 100644
--- a/src/xine-engine/xine.c
+++ b/src/xine-engine/xine.c
@@ -2171,3 +2171,22 @@ void _x_unlock_frontend(xine_stream_t *stream)
 {
   pthread_mutex_unlock(&stream->frontend_lock);
 }
+
+int _x_query_unprocessed_osd_events(xine_stream_t *stream)
+{
+  video_overlay_manager_t *ovl;
+  int redraw_needed;
+  
+  if (!stream->xine->port_ticket->acquire_nonblocking(stream->xine->port_ticket, 1))
+    return -1;
+
+  ovl = stream->video_out->get_overlay_manager(stream->video_out);
+  redraw_needed = ovl->redraw_needed(ovl, 0);
+ 
+  if (redraw_needed) 
+    stream->video_out->trigger_drawing(stream->video_out);
+
+  stream->xine->port_ticket->release_nonblocking(stream->xine->port_ticket, 1);
+
+  return redraw_needed;
+}