arithm_LUT.cl 4.14 KB
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// @Authors
//    Niko Li, newlife20080214@gmail.com
//    Rock Li, Rock.li@amd.com
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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 LUT_C1( __global const srcT * src, __global const dstT *lut,
      __global dstT *dst,
      int cols1, int rows,
      int src_offset1,
      int lut_offset1,
      int dst_offset1,
      int src_step1, int dst_step1)
{
    int x1 = get_global_id(0);
    int y = get_global_id(1);

    if (x1 < cols1 && y < rows)
    {
        int src_index = mad24(y, src_step1, src_offset1 + x1);
        int dst_index = mad24(y, dst_step1, dst_offset1 + x1);

        dst[dst_index] = lut[lut_offset1 + src[src_index]];
    }
}

__kernel void LUT_C2( __global const srcT * src, __global const dstT *lut,
      __global dstT *dst,
      int cols1, int rows,
      int src_offset1,
      int lut_offset1,
      int dst_offset1,
      int src_step1, int dst_step1)
{
    int x1 = get_global_id(0) << 1;
    int y = get_global_id(1);

    if (x1 < cols1 && y < rows)
    {
        int src_index = mad24(y, src_step1, src_offset1 + x1);
        int dst_index = mad24(y, dst_step1, dst_offset1 + x1);

        dst[dst_index    ] =                  lut[lut_offset1 + (src[src_index    ] << 1)    ];
        dst[dst_index + 1] = x1 + 1 < cols1 ? lut[lut_offset1 + (src[src_index + 1] << 1) + 1] : dst[dst_index + 1];
    }
}

__kernel void LUT_C4( __global const srcT * src, __global const dstT *lut,
      __global dstT *dst,
      int cols1, int rows,
      int src_offset1,
      int lut_offset1,
      int dst_offset1,
      int src_step1, int dst_step1)
{
    int x1 = get_global_id(0) << 2;
    int y = get_global_id(1);

    if (x1 < cols1 && y < rows)
    {
        int src_index = mad24(y, src_step1, src_offset1 + x1);
        int dst_index = mad24(y, dst_step1, dst_offset1 + x1);

        dst[dst_index    ] =                  lut[lut_offset1 + (src[src_index    ] << 2)    ];
        dst[dst_index + 1] = x1 + 1 < cols1 ? lut[lut_offset1 + (src[src_index + 1] << 2) + 1] : dst[dst_index + 1];
        dst[dst_index + 2] = x1 + 2 < cols1 ? lut[lut_offset1 + (src[src_index + 2] << 2) + 2] : dst[dst_index + 2];
        dst[dst_index + 3] = x1 + 3 < cols1 ? lut[lut_offset1 + (src[src_index + 3] << 2) + 3] : dst[dst_index + 3];
    }
}