.. _program_listing_file__tmp_ws_src_vitis_common_include_imgproc_xf_accumulate_squared.hpp:

Program Listing for File xf_accumulate_squared.hpp
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|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_vitis_common_include_imgproc_xf_accumulate_squared.hpp>` (``/tmp/ws/src/vitis_common/include/imgproc/xf_accumulate_squared.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /*
    * Copyright 2019 Xilinx, Inc.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
    *
    * Unless required by applicable law or agreed to in writing, software
    * distributed under the License is distributed on an "AS IS" BASIS,
    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    * See the License for the specific language governing permissions and
    * limitations under the License.
    */
   
   #ifndef _XF_ACCUMULATE_SQUARED_HPP_
   #define _XF_ACCUMULATE_SQUARED_HPP_
   
   #include "hls_stream.h"
   #include "../common/xf_common.hpp"
   
   #ifndef XF_IN_STEP
   #define XF_IN_STEP 8
   #endif
   #ifndef XF_OUT_STEP
   #define XF_OUT_STEP 16
   #endif
   namespace xf {
   namespace cv {
   template <int SRC_T,
             int DST_T,
             int ROWS,
             int COLS,
             int NPC,
             int PLANES,
             int DEPTH_SRC,
             int DEPTH_DST,
             int WORDWIDTH_SRC,
             int WORDWIDTH_DST,
             int TC>
   int AcuumulateSquaredKernel(xf::cv::Mat<SRC_T, ROWS, COLS, NPC>& src1,
                               xf::cv::Mat<SRC_T, ROWS, COLS, NPC>& src2,
                               xf::cv::Mat<DST_T, ROWS, COLS, NPC>& dst,
                               uint16_t height,
                               uint16_t width) {
       ap_uint<13> i, j, k, l;
   // clang-format off
       #pragma HLS DATAFLOW
       // clang-format on
       XF_TNAME(DST_T, NPC) pxl_pack_out;
       XF_TNAME(SRC_T, NPC) pxl_pack1, pxl_pack2;
   RowLoop:
       for (i = 0; i < height; i++) {
   // clang-format off
           #pragma HLS LOOP_FLATTEN off
           #pragma HLS LOOP_TRIPCOUNT min=ROWS max=ROWS
       // clang-format on
       ColLoop:
           for (j = 0; j < width; j++) {
   // clang-format off
               #pragma HLS LOOP_TRIPCOUNT min=TC max=TC
               #pragma HLS pipeline
               // clang-format on
               int y;
               pxl_pack1 = (XF_SNAME(WORDWIDTH_SRC))src1.read(i * width + j);
               pxl_pack2 = (XF_SNAME(WORDWIDTH_SRC))src2.read(i * width + j);
           ProcLoop:
               for (k = 0, l = 0; k < ((8 << XF_BITSHIFT(NPC)) * PLANES); k += XF_IN_STEP, l += XF_OUT_STEP) {
   // clang-format off
                   #pragma HLS UNROLL
                   // clang-format on
                   XF_CTUNAME(SRC_T, NPC) pxl1 = pxl_pack1.range(k + 7, k);
                   XF_CTUNAME(SRC_T, NPC) pxl2 = pxl_pack2.range(k + 7, k);
   
                   XF_CTUNAME(DST_T, NPC) t = (pxl1 * pxl1);
                   pxl_pack_out.range(l + XF_OUT_STEP - 1, l) = t + pxl2;
               }
   
               dst.write(i * width + j, (XF_SNAME(WORDWIDTH_DST))pxl_pack_out);
           }
       }
       return 0;
   }
   
   template <int SRC_T, int DST_T, int ROWS, int COLS, int NPC = 1>
   void accumulateSquare(xf::cv::Mat<SRC_T, ROWS, COLS, NPC>& src1,
                         xf::cv::Mat<SRC_T, ROWS, COLS, NPC>& src2,
                         xf::cv::Mat<DST_T, ROWS, COLS, NPC>& dst) {
   #ifndef __SYNTHESIS__
       assert(((SRC_T == XF_8UC1) || (SRC_T == XF_8UC3)) &&
              "Input TYPE must be XF_8UC1 for 1-channel and XF_8UC3 for 3-channel image");
       assert(((DST_T == XF_16UC1) || (DST_T == XF_16UC3)) &&
              "Output TYPE must be XF_16UC1 for 1-channel and XF_16UC3 for 3-channel image");
       assert(((src1.rows == src2.rows) && (src1.cols == src2.cols)) && "Both input images should have same size");
       assert(((src1.rows == dst.rows) && (src1.cols == dst.cols)) && "Input and output image should be of same size");
       assert(((src1.rows <= ROWS) && (src1.cols <= COLS)) && "ROWS and COLS should be greater than input image");
       assert(((NPC == XF_NPPC1) || (NPC == XF_NPPC8)) && "NPC must be XF_NPPC1, XF_NPPC8 ");
   #endif
       short width = src1.cols >> XF_BITSHIFT(NPC);
   
   // clang-format off
       #pragma HLS INLINE OFF
       // clang-format on
   
       AcuumulateSquaredKernel<SRC_T, DST_T, ROWS, COLS, NPC, XF_CHANNELS(SRC_T, NPC), XF_DEPTH(SRC_T, NPC),
                               XF_DEPTH(DST_T, NPC), XF_WORDWIDTH(SRC_T, NPC), XF_WORDWIDTH(DST_T, NPC),
                               (COLS >> XF_BITSHIFT(NPC))>(src1, src2, dst, src1.rows, width);
   }
   } // namespace cv
   } // namespace xf
   #endif //_XF_ACCUMULATE_SQUARED_HPP_