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 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
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 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
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 */

///////////////////////////////////////////////////////////////////////////////
// Header for common includes and utility functions
///////////////////////////////////////////////////////////////////////////////

#ifndef COMMON_H
#define COMMON_H

///////////////////////////////////////////////////////////////////////////////
// Common includes
///////////////////////////////////////////////////////////////////////////////

#include <helper_cuda.h>
#include <math.h>
#include <memory.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

///////////////////////////////////////////////////////////////////////////////
// Common constants
///////////////////////////////////////////////////////////////////////////////
const int StrideAlignment = 32;

///////////////////////////////////////////////////////////////////////////////
// Common functions
///////////////////////////////////////////////////////////////////////////////

// Align up n to the nearest multiple of m
inline int iAlignUp(int n, int m = StrideAlignment)
{
    int mod = n % m;

    if (mod)
        return n + m - mod;
    else
        return n;
}

// round up n/m
inline int iDivUp(int n, int m) { return (n + m - 1) / m; }

// swap two values
template <typename T> inline void Swap(T &a, T &b)
{
    T t = a;
    a   = b;
    b   = t;
}
#endif