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This repository has been archived by the owner on Sep 11, 2018. It is now read-only.
This is addressed in section 5.3 of the spec, "Canvas-in-workers".
HTMLImageElement and Blob are not transferrable to workers, so it would require costly conversion on the main thread anyway just to send them to the worker, defeating the point of trying to move the work off the main thread. It also could have higher memory requirements since there is still an image-sized canvas involved, and Mozilla were particularly concerned about reducing the memory overhead.
OK. Thanks for the explain.
I am going to release a crosswalk version (based on 14) with this ImageData extension interface implemented. Will you able to have a try on it
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Hello,
Blinking is bring this new feature: https://wiki.whatwg.org/wiki/OffscreenCanvas
It means Canvas can be accessed by an off-screen worker thread.
I think it will at least partly resolve the problem proposed by this extension here, right?
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