sub: add preliminary emulation layer to draw OSD with EOSD

This basically pushes the old OSD bitmaps via VOCTRL_DRAW_EOSD to the
VO, instead of using the old callback-based interface.

Future commits will change the code such that sub.c pushes images
rendered by libass directly, rather than converting them to the old
OSD format first.

1 files changed, 9 insertions, 0 deletions

diff --git a/sub/sub.h b/sub/sub.h
index fc0047bba6..74d2b5a37a 100644
--- a/sub/sub.h
+++ b/sub/sub.h
@@ -24,10 +24,13 @@
 #include "subreader.h"
 #include "dec_sub.h"
 
+struct vo;
+
 typedef struct mp_osd_bbox_s {
     int x1,y1,x2,y2;
 } mp_osd_bbox_t;
 
+#define OSDTYPE_ASS 0
 #define OSDTYPE_OSD 1
 #define OSDTYPE_SUBTITLE 2
 #define OSDTYPE_PROGBAR 3
@@ -78,6 +81,10 @@ struct osd_state {
     char *osd_text;
     int w, h;
 
+    struct sub_bitmaps eosd[MAX_OSD_PARTS];
+
+    void *scratch;
+
     struct MPOpts *opts;
 };
 
@@ -153,6 +160,8 @@ void osd_draw_text_ext(struct osd_state *osd, int dxs, int dys,
                                           int stride),
                        void *ctx);
 
+void emulate_draw_osd(struct vo *vo, struct osd_state *osd);
+
 struct osd_state *osd_create(struct MPOpts *opts, struct ass_library *asslib);
 void osd_set_text(struct osd_state *osd, const char *text);
 int osd_update(struct osd_state *osd, int dxs, int dys);