text: // This file is part of OpenCV project.
  // It is subject to the license terms in the LICENSE file found in the top-level directory
  // of this distribution and at http://opencv.org/license.html.
  
  // Copyright (C) 2014, Itseez, Inc., all rights reserved.
  // Third party copyrights are property of their respective owners.
  
  #if cn != 3
  #define loadpix(addr) *(__global const T *)(addr)
  #define storepix(val, addr)  *(__global T *)(addr) = val
  #define TSIZE (int)sizeof(T)
  #else
  #define loadpix(addr) vload3(0, (__global const T1 *)(addr))
  #define storepix(val, addr) vstore3(val, 0, (__global T1 *)(addr))
  #define TSIZE ((int)sizeof(T1)*3)
  #endif
  
  __kernel void repeat(__global const uchar * srcptr, int src_step, int src_offset, int src_rows, int src_cols,
                       __global uchar * dstptr, int dst_step, int dst_offset)
  {
      int x = get_global_id(0);
      int y0 = get_global_id(1) * rowsPerWI;
  
      if (x < src_cols)
      {
          int src_index = mad24(y0, src_step, mad24(x, (int)sizeof(T), src_offset));
          int dst_index0 = mad24(y0, dst_step, mad24(x, (int)sizeof(T), dst_offset));
  
          for (int y = y0, y1 = min(src_rows, y0 + rowsPerWI); y < y1; ++y, src_index += src_step, dst_index0 += dst_step)
          {
              T srcelem = loadpix(srcptr + src_index);
  
              #pragma unroll
              for (int ey = 0; ey < ny; ++ey)
              {
                  int dst_index = mad24(ey * src_rows, dst_step, dst_index0);
  
                  #pragma unroll
                  for (int ex = 0; ex < nx; ++ex)
                  {
                      storepix(srcelem, dstptr + dst_index);
                      dst_index = mad24(src_cols, (int)sizeof(T), dst_index);
                  }
              }
          }
      }
  }
  