add a way to resize window contents without VO resize

gl_video_resize_redraw() simply resizes and redraws (but without
invoking swapGlBuffers()). The VO is not involved in any way, so this
can simply be called from inside the mpgl lock from any thread.

Requires a minor refactor of the GL OSD code in order to redraw without
an OSD object.

1 files changed, 11 insertions, 3 deletions

diff --git a/video/out/gl_osd.h b/video/out/gl_osd.h
index cf3182ffb2..91c7a6f552 100644
--- a/video/out/gl_osd.h
+++ b/video/out/gl_osd.h
@@ -10,6 +10,7 @@
 struct mpgl_osd_part {
     enum sub_bitmap_format format;
     int bitmap_id, bitmap_pos_id;
+    bool active;
     GLuint texture;
     int w, h;
     GLuint buffer;
@@ -31,13 +32,20 @@ struct mpgl_osd {
 struct mpgl_osd *mpgl_osd_init(GL *gl, bool legacy);
 void mpgl_osd_destroy(struct mpgl_osd *ctx);
 
-struct mpgl_osd_part *mpgl_osd_generate(struct mpgl_osd *ctx,
-                                        struct sub_bitmaps *b);
-
 void mpgl_osd_set_gl_state(struct mpgl_osd *ctx, struct mpgl_osd_part *p);
 void mpgl_osd_unset_gl_state(struct mpgl_osd *ctx, struct mpgl_osd_part *p);
 
 void mpgl_osd_draw_legacy(struct mpgl_osd *ctx, struct osd_state *osd,
                           struct mp_osd_res res);
+void mpgl_osd_draw_cb(struct mpgl_osd *ctx,
+                      struct osd_state *osd,
+                      struct mp_osd_res res,
+                      void (*cb)(void *ctx, struct mpgl_osd_part *part,
+                                 struct sub_bitmaps *imgs),
+                      void *cb_ctx);
+void mpgl_osd_redraw_cb(struct mpgl_osd *ctx,
+                        void (*cb)(void *ctx, struct mpgl_osd_part *part,
+                                   struct sub_bitmaps *imgs),
+                        void *cb_ctx);
 
 #endif