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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_dsp/sse.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/sse.c b/third_party/aom/aom_dsp/sse.c new file mode 100644 index 0000000000..bfe76edc39 --- /dev/null +++ b/third_party/aom/aom_dsp/sse.c @@ -0,0 +1,59 @@ +/* + * 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 <stdlib.h> + +#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 |