OpenCV 3.1 custom OpenCL Queue

asked 2016-12-16 14:19:12 -0600

MikeSZ
6 ●1 ●4

With OpenCV 3.1, when I use cv :: ocl :: attachContext for interoperation, a new queue is created. If I run an OpenCV function, it runs in its own queue, different from the main queue.

Main question: How can I set OpenCV to use the same queue I already have created and in use?

Or, how do I check that the OpenCV queue has finished running, while I pause the main queue, until OpenCV finishes?

Or wait for the main queue to run, before running the OpenCV functions, and move on to the subject of the previous question?

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answered 2016-12-16 19:06:54 -0600

Tetragramm

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I think finish is the function you need. I don't know how to attach to an existing queue, but this will let you ensure the OpenCV queue has finished running before moving on.

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that's right. using "finish" the host thread waits until the OpenCL queue completes. anyway, I'm thinking on expose the command_queue class field in OpenCV, or add a property, and recompile, so I can delete what it create an attach my own queue, and control/avoid delete the queue when the class is destroyed.