Leaderboard

DVRs (for the buffers) and semaphores (LabVIEW's "condition variable"). However. You only have one writer and reader, right? So push the DVRs into a queue and you will only copy a pointer. You can then either let LabVIEW handle memory by creating and destroying a DVR for each image or have a round-robin pool of permanent DVRs if you want to be fancy (n-buffering). You were right in your original approach, you just didn't use the DVR so had to copy the data.

I really like this library. It's simple to use and understand. It's not viral.