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, 3 insertions, 3 deletions

diff --git a/video/out/vo_x11.c b/video/out/vo_x11.c
index 0ab3c9ebcb..34c23523ef 100644
--- a/video/out/vo_x11.c
+++ b/video/out/vo_x11.c
@@ -610,9 +610,9 @@ static int query_format(struct vo *vo, uint32_t format)
             if (fmt2Xfmt[n].mpfmt == format) {
                 if (IMGFMT_RGB_DEPTH(format) == p->ximage_depth) {
                     return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW |
-                           VFCAP_OSD | VFCAP_FLIP;
+                           VFCAP_FLIP;
                 } else {
-                    return VFCAP_CSP_SUPPORTED | VFCAP_OSD | VFCAP_FLIP;
+                    return VFCAP_CSP_SUPPORTED | VFCAP_FLIP;
                 }
             }
         }
@@ -620,7 +620,7 @@ static int query_format(struct vo *vo, uint32_t format)
 
     switch (format) {
     case IMGFMT_420P:
-        return VFCAP_CSP_SUPPORTED | VFCAP_OSD;
+        return VFCAP_CSP_SUPPORTED;
     }
     return 0;
 }