/tomo/pyhst

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101 by Suren A. Chilingaryan
Data padding for back projection filter in OpenCL module (significant speed improvemnt) 
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#include <stdio.h>

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#include "hw_tools.h"










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int hw_calc_blocks(int items, int block_size, int *increment) {










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    int grids = items / block_size;










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    int inc = grids * block_size - items;










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    if (inc) {










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        if (increment) *increment = inc + block_size;










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        return grids + 1;










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    }










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    if (increment) *increment = inc;










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    return grids;










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}