/* * Copyright (c) 2018, Alliance for Open Media. All rights reserved * * This source code is subject to the terms of the BSD 2 Clause License and * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License * was not distributed with this source code in the LICENSE file, you can * obtain it at www.aomedia.org/license/software. If the Alliance for Open * Media Patent License 1.0 was not distributed with this source code in the * PATENTS file, you can obtain it at www.aomedia.org/license/patent. */ /* * Sum the square of the difference between every corresponding element of the * buffers. */ #include #include "config/aom_config.h" #include "config/aom_dsp_rtcd.h" #include "aom/aom_integer.h" int64_t aom_sse_c(const uint8_t *a, int a_stride, const uint8_t *b, int b_stride, int width, int height) { int y, x; int64_t sse = 0; for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { const int32_t diff = abs(a[x] - b[x]); sse += diff * diff; } a += a_stride; b += b_stride; } return sse; } #if CONFIG_AV1_HIGHBITDEPTH int64_t aom_highbd_sse_c(const uint8_t *a8, int a_stride, const uint8_t *b8, int b_stride, int width, int height) { int y, x; int64_t sse = 0; uint16_t *a = CONVERT_TO_SHORTPTR(a8); uint16_t *b = CONVERT_TO_SHORTPTR(b8); for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { const int32_t diff = (int32_t)(a[x]) - (int32_t)(b[x]); sse += diff * diff; } a += a_stride; b += b_stride; } return sse; } #endif