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      1 /*
      2  *  Copyright (c) 2016 The WebM project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #include "./vpx_dsp_rtcd.h"
     12 
     13 uint64_t vpx_sum_squares_2d_i16_c(const int16_t *src, int src_stride,
     14                                   int size) {
     15   int r, c;
     16   uint64_t ss = 0;
     17 
     18   for (r = 0; r < size; r++) {
     19     for (c = 0; c < size; c++) {
     20       const int16_t v = src[c];
     21       ss += v * v;
     22     }
     23     src += src_stride;
     24   }
     25 
     26   return ss;
     27 }
     28