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Alex Rivera
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I found there's lacking good documentation in RenderScript, for what I know, forEach in RS is to execute the root() for each individual item in the allocation. I am trying to make a library for Renderscript that does Image processing, as a starting point, I reached this great answer . But the problem, is that the blur operation is on Each pixel and each pixel requires another loop (n with blur width) of calculation. Although running on multi-core, it is still a bit too slow. I am trying to modify it to allow (two-pass) box filter, but that requires working on a single row or column instead of cell. So, is there any way to ask foreach to send an array to root()?
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