[client] transport: track video component availability

client/src/sw_surface.h

@@ -0,0 +1,24 @@
+/**
+ * Looking Glass
+ * Copyright © 2017-2026 The Looking Glass Authors
+ * https://looking-glass.io
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#ifndef _H_LG_CLIENT_SW_SURFACE_
+#define _H_LG_CLIENT_SW_SURFACE_
+
+#include "interface/transport.h"
+
+/* Runs setActive on a worker and joins it before returning. Cancellation is
+ * observed only while activating; deactivation is allowed to complete unless
+ * an owner invokes cancelPending from another thread. */
+bool lgSwSurface_setActive(const LG_SwSurfaceOps * ops,
+    LG_Transport * transport, bool active,
+    LG_TransportCancelledFn cancelled, void * opaque);
+
+#endif