vo_opengl: allow backends to provide callbacks for custom event loops

Until now, this has been either handled over vo.event_fd (which should
go away), or by putting event handling on a separate thread. The
backends which do the latter do it for a reason and won't need this, but
X11 and Wayland will, in order to get rid of event_fd.

1 files changed, 5 insertions, 0 deletions

diff --git a/video/out/opengl/context.h b/video/out/opengl/context.h
index df842bc8a1..a546e00be0 100644
--- a/video/out/opengl/context.h
+++ b/video/out/opengl/context.h
@@ -63,6 +63,11 @@ struct mpgl_driver {
     // This behaves exactly like vo_driver.control().
     int (*control)(struct MPGLContext *ctx, int *events, int request, void *arg);
 
+    // These behave exactly like vo_driver.wakeup/wait_events. They are
+    // optional.
+    void (*wakeup)(struct MPGLContext *ctx);
+    void (*wait_events)(struct MPGLContext *ctx, int64_t until_time_us);
+
     // Destroy the GL context and possibly the underlying VO backend.
     void (*uninit)(struct MPGLContext *ctx);
 };