.. _program_listing_file__tmp_ws_src_vitis_common_include_imgproc_xf_sum.hpp:

Program Listing for File xf_sum.hpp
===================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_vitis_common_include_imgproc_xf_sum.hpp>` (``/tmp/ws/src/vitis_common/include/imgproc/xf_sum.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_WEIGHTED_HPP_
   #define _XF_ACCUMULATE_WEIGHTED_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 ROWS, int COLS, int NPC, int PLANES, int DEPTH_SRC, int WORDWIDTH_SRC, int TC>
   int sumKernel(xf::cv::Mat<SRC_T, ROWS, COLS, NPC>& src1,
                 xf::cv::Scalar<XF_CHANNELS(SRC_T, NPC), double>& scl,
                 uint16_t height,
                 uint16_t width) {
       ap_uint<13> i, j, k, l, c;
   
       ap_uint<64> internal_sum[PLANES];
       for (int i = 0; i < PLANES; i++) {
   // clang-format off
           #pragma HLS unroll
           // clang-format on
           internal_sum[i] = 0;
       }
   
       int STEP = XF_PIXELDEPTH(DEPTH_SRC) / PLANES;
   
       XF_SNAME(WORDWIDTH_SRC) pxl_pack1, pxl_pack2;
   RowLoop:
   
       for (i = 0; i < height; i++) {
   // clang-format off
           #pragma HLS LOOP_TRIPCOUNT min=ROWS max=ROWS
           #pragma HLS LOOP_FLATTEN OFF
       // 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
   
               pxl_pack1 = (XF_SNAME(WORDWIDTH_SRC))(src1.read(i * width + j));
           ProcLoop:
               for (k = 0, c = 0; k < ((8 << XF_BITSHIFT(NPC)) * PLANES); k += XF_IN_STEP, c++) {
                   XF_PTNAME(DEPTH_SRC) pxl1 = pxl_pack1.range(k + 7, k);
   
                   if (PLANES == 1) {
                       internal_sum[0] = internal_sum[0] + pxl1;
                   } else {
                       internal_sum[c] = internal_sum[c] + pxl1;
                   }
               }
           }
       }
       if (PLANES == 1) {
           scl.val[0] = (ap_uint<64>)internal_sum[0];
       } else {
           scl.val[0] = (ap_uint<64>)internal_sum[0];
           scl.val[1] = (ap_uint<64>)internal_sum[1];
           scl.val[2] = (ap_uint<64>)internal_sum[2];
       }
       return 0;
   }
   
   template <int SRC_T, int ROWS, int COLS, int NPC = 1>
   void sum(xf::cv::Mat<SRC_T, ROWS, COLS, NPC>& src1, double sum[XF_CHANNELS(SRC_T, NPC)]) {
   #ifndef __SYNTHESIS__
       assert(((SRC_T == XF_8UC1)) && "Input TYPE must be XF_8UC1 for 1-channel image");
       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);
       xf::cv::Scalar<XF_CHANNELS(SRC_T, NPC), double> scl;
   
       sumKernel<SRC_T, ROWS, COLS, NPC, XF_CHANNELS(SRC_T, NPC), XF_DEPTH(SRC_T, NPC), XF_WORDWIDTH(SRC_T, NPC),
                 (COLS >> XF_BITSHIFT(NPC))>(src1, scl, src1.rows, width);
       for (int i = 0; i < XF_CHANNELS(SRC_T, NPC); i++) {
           sum[i] = scl.val[i];
       }
   }
   } // namespace cv
   } // namespace xf
   #endif //_XF_SUM_HPP_