blk_sse_sum.c (908B)
1 /* 2 * Copyright (c) 2019, Alliance for Open Media. All rights reserved. 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #include "config/aom_dsp_rtcd.h" 13 14 void aom_get_blk_sse_sum_c(const int16_t *data, int stride, int bw, int bh, 15 int *x_sum, int64_t *x2_sum) { 16 *x_sum = 0; 17 *x2_sum = 0; 18 for (int i = 0; i < bh; ++i) { 19 for (int j = 0; j < bw; ++j) { 20 const int val = data[j]; 21 *x_sum += val; 22 *x2_sum += val * val; 23 } 24 data += stride; 25 } 26 }