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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_dsp/blk_sse_sum.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/blk_sse_sum.c b/third_party/aom/aom_dsp/blk_sse_sum.c new file mode 100644 index 0000000000..d76c3f87b9 --- /dev/null +++ b/third_party/aom/aom_dsp/blk_sse_sum.c @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2019, 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. + */ + +#include "config/aom_dsp_rtcd.h" + +void aom_get_blk_sse_sum_c(const int16_t *data, int stride, int bw, int bh, + int *x_sum, int64_t *x2_sum) { + *x_sum = 0; + *x2_sum = 0; + for (int i = 0; i < bh; ++i) { + for (int j = 0; j < bw; ++j) { + const int val = data[j]; + *x_sum += val; + *x2_sum += val * val; + } + data += stride; + } +} |