cocoa: reintroduce async resize

After removing synchronous libdispatch calls, this looks like it doesn't
deadlock anymore. I also experimented with pthread_mutex_trylock liek wm4
suggested, but it leads to some annoying black flickering. I will fallback to
that only if some new deadlocks are discovered.

1 files changed, 1 insertions, 0 deletions

diff --git a/video/out/gl_cocoa.c b/video/out/gl_cocoa.c
index 4c07806c77..32c66675f0 100644
--- a/video/out/gl_cocoa.c
+++ b/video/out/gl_cocoa.c
@@ -149,6 +149,7 @@ void mpgl_set_backend_cocoa(MPGLContext *ctx)
     ctx->releaseGlContext = releaseGlContext_cocoa;
     ctx->swapGlBuffers = swapGlBuffers_cocoa;
     ctx->vo_init = vo_cocoa_init;
+    ctx->register_resize_callback = vo_cocoa_register_resize_callback;
     ctx->vo_uninit = vo_cocoa_uninit;
     ctx->vo_control = vo_cocoa_control;
     ctx->set_current = set_current_cocoa;