core: simplify OSD capability handling, remove VFCAP_OSD

VFCAP_OSD was used to determine at runtime whether the VO supports OSD
rendering. This was mostly unused. vo_direct3d had an option to disable
OSD (was supposed to allow to force auto-insertion of vf_ass, but we
removed that anyway). vo_opengl_old could disable OSD rendering when a
very old OpenGL version was detected, and had an option to explicitly
disable it as well.

Remove VFCAP_OSD from everything (and some associated logic). Now the
vo_driver.draw_osd callback can be set to NULL to indicate missing OSD
support (important so that vo_null etc. don't single-step on OSD
redraw), and if OSD support depends on runtime support, the VO's
draw_osd should just do nothing if OSD is not available.

Also, do not access vo->want_redraw directly. Change the want_redraw
reset logic for this purpose, too. (Probably unneeded, vo_flip_page
resets it already.)

1 files changed, 1 insertions, 1 deletions

diff --git a/video/out/vo.h b/video/out/vo.h
index 81cd61b9cc..ea0189dcee 100644
--- a/video/out/vo.h
+++ b/video/out/vo.h
@@ -227,7 +227,6 @@ struct vo_driver {
 struct vo {
     int config_ok;  // Last config call was successful?
     int config_count;  // Total number of successful config calls
-    int default_caps; // query_format() result for configured video format
 
     bool untimed;       // non-interactive, don't do sleep calls in playloop
 
@@ -291,6 +290,7 @@ void list_video_out(void);
 int vo_control(struct vo *vo, uint32_t request, void *data);
 int vo_draw_image(struct vo *vo, struct mp_image *mpi);
 int vo_redraw_frame(struct vo *vo);
+bool vo_get_want_redraw(struct vo *vo);
 int vo_get_buffered_frame(struct vo *vo, bool eof);
 void vo_skip_frame(struct vo *vo);
 void vo_new_frame_imminent(struct vo *vo);