.. _program_listing_file__tmp_ws_src_vitis_common_include_imgproc_xf_resize.hpp:

Program Listing for File xf_resize.hpp
======================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_vitis_common_include_imgproc_xf_resize.hpp>` (``/tmp/ws/src/vitis_common/include/imgproc/xf_resize.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_RESIZE_
   #define _XF_RESIZE_
   
   #include "xf_resize_headers.h"
   
   namespace xf {
   namespace cv {
   
   template <int INTERPOLATION_TYPE,
             int TYPE,
             int SRC_ROWS,
             int SRC_COLS,
             int DST_ROWS,
             int DST_COLS,
             int NPC,
             int MAX_DOWN_SCALE>
   void resize(xf::cv::Mat<TYPE, SRC_ROWS, SRC_COLS, NPC>& _src, xf::cv::Mat<TYPE, DST_ROWS, DST_COLS, NPC>& _dst) {
   // clang-format off
       #pragma HLS INLINE OFF
       // clang-format on
   
       assert(((INTERPOLATION_TYPE == XF_INTERPOLATION_NN) || (INTERPOLATION_TYPE == XF_INTERPOLATION_BILINEAR) ||
               (INTERPOLATION_TYPE == XF_INTERPOLATION_AREA)) &&
              "Incorrect parameters interpolation type");
       assert(((_src.rows <= SRC_ROWS) && (_src.cols <= SRC_COLS)) &&
              "SRC_ROWS and SRC_COLS should be greater than input image");
       assert(((_dst.rows <= DST_ROWS) && (_dst.cols <= DST_COLS)) &&
              "DST_ROWS and DST_COLS should be greater than output image");
   
       if (INTERPOLATION_TYPE == XF_INTERPOLATION_AREA) {
           assert((((_src.rows < _dst.rows) && (_src.cols < _dst.cols)) ||
                   ((_src.rows >= _dst.rows) && (_src.cols >= _dst.cols))) &&
                  " For Area mode, Image can be upscaled or downscaled simultaneously across height & width. But it can't "
                  "be upscaled across height & downscaled across width and vice versa.  For example: input image-128x128 "
                  "& output image-150x80 is not supported");
   
           if ((_src.rows < _dst.rows) && (_src.cols < _dst.cols)) {
               xFResizeAreaUpScale<SRC_ROWS, SRC_COLS, XF_CHANNELS(TYPE, NPC), TYPE, NPC, XF_WORDWIDTH(TYPE, NPC),
                                   DST_ROWS, DST_COLS, (SRC_COLS >> XF_BITSHIFT(NPC)), (DST_COLS >> XF_BITSHIFT(NPC))>(
                   _src, _dst);
           } else if ((_src.rows >= _dst.rows) && (_src.cols >= _dst.cols)) {
               xFResizeAreaDownScale<SRC_ROWS, SRC_COLS, XF_CHANNELS(TYPE, NPC), TYPE, NPC, XF_WORDWIDTH(TYPE, NPC),
                                     DST_ROWS, DST_COLS, (SRC_COLS >> XF_BITSHIFT(NPC)), (DST_COLS >> XF_BITSHIFT(NPC))>(
                   _src, _dst);
           }
   
           return;
       } else {
           resizeNNBilinear<TYPE, SRC_ROWS, SRC_COLS, NPC, DST_ROWS, DST_COLS, INTERPOLATION_TYPE, MAX_DOWN_SCALE>(_src,
                                                                                                                   _dst);
       }
   }
   } // namespace cv
   } // namespace xf
   #endif