Move vo_ontop to options struct

Add a 'struct vo *vo' argument to the x11_common.c functions that
access the variable so it's available as vo->opts->vo_ontop. To keep
VOs using the old API working create a global vo variable that is set
to the currently used old vo. "vo_ontop" will be #defined to
"global_vo->opts->vo_ontop", and x11_common.h will add defines like
the following when it is included by old VOs:
 #define vo_x11_ontop() vo_x11_ontop(global_vo)
so that they will call the function according to the new declaration.

1 files changed, 1 insertions, 0 deletions

diff --git a/options.h b/options.h
index 89f5855d66..2d6c8d48e4 100644
--- a/options.h
+++ b/options.h
@@ -5,6 +5,7 @@ typedef struct MPOpts {
     char **video_driver_list;
     char **audio_driver_list;
     int fixed_vo;
+    int vo_ontop;
     int correct_pts;
     int user_correct_pts;
 } MPOpts;