ref: 01cac9f374345c3bba337ef5e63fd2693473bca5
dir: /vpx_dsp/sum_squares.c/
/* * Copyright (c) 2016 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include "./vpx_dsp_rtcd.h" uint64_t vpx_sum_squares_2d_i16_c(const int16_t *src, int stride, int size) { int r, c; uint64_t ss = 0; for (r = 0; r < size; r++) { for (c = 0; c < size; c++) { const int16_t v = src[c]; ss += v * v; } src += stride; } return ss; }