opencv/modules/core/src/opencl/inrange.cl

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#ifdef DOUBLE_SUPPORT
#ifdef cl_amd_fp64
#pragma OPENCL EXTENSION cl_amd_fp64:enable
#elif defined (cl_khr_fp64)
#pragma OPENCL EXTENSION cl_khr_fp64:enable
#endif
#endif

__kernel void inrange(__global const uchar * src1ptr, int src1_step, int src1_offset,
                      __global uchar * dstptr, int dst_step, int dst_offset, int dst_rows, int dst_cols,
#ifdef HAVE_SCALAR
                      __global const T * src2, __global const T * src3
#else
                      __global const uchar * src2ptr, int src2_step, int src2_offset,
                      __global const uchar * src3ptr, int src3_step, int src3_offset
#endif
                      )
{
    int x = get_global_id(0);
    int y = get_global_id(1);

    if (x < dst_cols && y < dst_rows)
    {
        int src1_index = mad24(y, src1_step, x*(int)sizeof(T)*cn + src1_offset);
        int dst_index = mad24(y, dst_step, x + dst_offset);
        __global const T * src1 = (__global const T *)(src1ptr + src1_index);
        __global uchar * dst = dstptr + dst_index;

#ifndef HAVE_SCALAR
        int src2_index = mad24(y, src2_step, x*(int)sizeof(T)*cn + src2_offset);
        int src3_index = mad24(y, src3_step, x*(int)sizeof(T)*cn + src3_offset);
        __global const T * src2 = (__global const T *)(src2ptr + src2_index);
        __global const T * src3 = (__global const T *)(src3ptr + src3_index);
#endif

        dst[0] = 255;

        #pragma unroll
        for (int c = 0; c < cn; ++c)
            if ( src2[c] > src1[c] || src3[c] < src1[c] )
            {
                dst[0] = 0;
                break;
            }
    }
}