vo: move DR helper code to a separate source file

So it can be reused by vo_libmpv.c, which needs to use it in a slightly
different way.

1 files changed, 8 insertions, 0 deletions

diff --git a/video/out/vo.h b/video/out/vo.h
index 4a54914962..947493268c 100644
--- a/video/out/vo.h
+++ b/video/out/vo.h
@@ -328,6 +328,14 @@ struct vo_driver {
                                   int stride_align);
 
     /*
+     * Thread-safe variant of get_image. Set at most one of these callbacks.
+     * This excludes _all_ synchronization magic. The only guarantee is that
+     * vo_driver.uninit is not called before this function returns.
+     */
+    struct mp_image *(*get_image_ts)(struct vo *vo, int imgfmt, int w, int h,
+                                     int stride_align);
+
+    /*
      * Render the given frame to the VO's backbuffer. This operation will be
      * followed by a draw_osd and a flip_page[_timed] call.
      * mpi belongs to the VO; the VO must free it eventually.