.. _program_listing_file__tmp_ws_src_vitis_common_include_aie_imgproc_xf_accumulate_aie.hpp:

Program Listing for File xf_accumulate_aie.hpp
==============================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_vitis_common_include_aie_imgproc_xf_accumulate_aie.hpp>` (``/tmp/ws/src/vitis_common/include/aie/imgproc/xf_accumulate_aie.hpp``)

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

.. code-block:: cpp

   /*
    * Copyright 2021 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.
    */
   
   #include <adf.h>
   #include <aie_api/aie.hpp>
   #include <common/xf_aie_utils.hpp>
   
   #ifndef _AIE_ACCUMULATEWEIGHTED_H_
   #define _AIE_ACCUMULATEWEIGHTED_H_
   
   #define PARALLEL_FACTOR_16b 32
   //#define PARALLEL_FACTOR_32b 16
   
   namespace xf {
   namespace cv {
   namespace aie {
   
   template <typename T, int N>
   __attribute__((noinline)) void accumulate(const T* restrict img_in1,
                                             const T* restrict img_in2,
                                             T* restrict img_out,
                                             const T& img_width,
                                             const T& img_height) {
       for (int i = 0; i < (img_height * img_width); i += N) // 32x samples per loop
           chess_prepare_for_pipelining chess_loop_range(4, )
   
           {
               ::aie::vector<T, N> vec = ::aie::add(::aie::load_v<N>(img_in1 + i), ::aie::load_v<N>(img_in2 + i));
               ::aie::store_v(img_out + i, vec);
           }
   }
   
   __attribute__((noinline)) void accumulate_api(input_window_int16* img_in1,
                                                 input_window_int16* img_in2,
                                                 output_window_int16* img_out) {
       int16* restrict img_in_ptr = (int16*)img_in1->ptr;
       int16* restrict img_in_ptr1 = (int16*)img_in2->ptr;
       int16* restrict img_out_ptr = (int16*)img_out->ptr;
   
       const int16_t img_width = xfcvGetTileWidth(img_in_ptr);
       const int16_t img_height = xfcvGetTileHeight(img_in_ptr);
   
       xfcvCopyMetaData(img_in_ptr, img_out_ptr);
       xfcvUnsignedSaturation(img_out_ptr);
   
       int16_t* restrict ptr0 = xfcvGetImgDataPtr(img_in_ptr);
       int16_t* restrict ptr1 = xfcvGetImgDataPtr(img_in_ptr1);
       int16_t* restrict ptr_out = xfcvGetImgDataPtr(img_out_ptr);
   
       accumulate<int16_t, PARALLEL_FACTOR_16b>(ptr0, ptr1, ptr_out, img_width, img_height);
   }
   
   } // aie
   } // cv
   } // xf
   #endif