Create a context struct for OSD state

This commit creates the struct and passes it to some functions that
needs to access OSD state but does not yet move much data from globals
to it.

vf_expand accesses the OSD state for rendering purposes outside of the
normal OSD draw time. The way this currently works is suboptimal, but
I did not attempt to clean it up now. To keep things working the same
way vf_expand needs to know the address of the state object to be able
to access the data even in the functions that should normally not need
it. For that purpose this commit adds a VFCTRL to tell vf_expand the
address of the object.

1 files changed, 19 insertions, 8 deletions

diff --git a/libvo/sub.h b/libvo/sub.h
index 50b55829ad..328af4d274 100644
--- a/libvo/sub.h
+++ b/libvo/sub.h
@@ -49,14 +49,15 @@ typedef struct mp_osd_obj_s {
     unsigned char *bitmap_buffer;
 } mp_osd_obj_t;
 
+struct osd_state {
+    unsigned char osd_text[64];
+};
 
 #include "subreader.h"
 
 extern sub_data* subdata; //currently used subtitles
 extern subtitle* vo_sub;
 
-extern unsigned char* vo_osd_text;
-
 extern void* vo_osd_teletext_page;
 extern int vo_osd_teletext_half;
 extern int vo_osd_teletext_mode;
@@ -108,14 +109,19 @@ extern float spu_gaussvar;
 //extern void vo_draw_text_osd(int dxs,int dys,void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride));
 //extern void vo_draw_text_progbar(int dxs,int dys,void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride));
 //extern void vo_draw_text_sub(int dxs,int dys,void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride));
-extern void osd_draw_text(int dxs,int dys,void (*draw_alpha)(void *ctx, int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride), void *ctx);
-extern void vo_remove_text(int dxs,int dys,void (*remove)(int x0,int y0, int w,int h));
-
-void vo_init_osd(void);
-int vo_update_osd(int dxs,int dys);
+void osd_draw_text(struct osd_state *osd, int dxs, int dys,
+                   void (*draw_alpha)(void *ctx, int x0, int y0, int w, int h,
+                                      unsigned char* src, unsigned char *srca,
+                                      int stride),
+                   void *ctx);
+void osd_remove_text(struct osd_state *osd, int dxs, int dys,
+                     void (*remove)(int x0, int y0, int w, int h));
+
+struct osd_state *osd_create(void);
+int osd_update(struct osd_state *osd, int dxs, int dys);
 int vo_osd_changed(int new_value);
 int vo_osd_check_range_update(int,int,int,int);
-void free_osd_list(void);
+void osd_free(struct osd_state *osd);
 
 extern int vo_osd_changed_flag;
 
@@ -126,4 +132,9 @@ unsigned utf8_get_char(const char **str);
 void osd_set_nav_box (uint16_t sx, uint16_t sy, uint16_t ex, uint16_t ey);
 #endif
 
+
+#ifdef IS_OLD_VO
+#define vo_remove_text(...) osd_remove_text(global_osd, __VA_ARGS__)
+#endif
+
 #endif /* MPLAYER_SUB_H */