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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_dsp/subtract.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/subtract.c b/third_party/aom/aom_dsp/subtract.c new file mode 100644 index 0000000000..4f47e553d4 --- /dev/null +++ b/third_party/aom/aom_dsp/subtract.c @@ -0,0 +1,54 @@ +/* + * Copyright (c) 2016, 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 <stdlib.h> + +#include "config/aom_config.h" +#include "config/aom_dsp_rtcd.h" + +#include "aom/aom_integer.h" +#include "aom_ports/mem.h" + +void aom_subtract_block_c(int rows, int cols, int16_t *diff, + ptrdiff_t diff_stride, const uint8_t *src, + ptrdiff_t src_stride, const uint8_t *pred, + ptrdiff_t pred_stride) { + int r, c; + + for (r = 0; r < rows; r++) { + for (c = 0; c < cols; c++) diff[c] = src[c] - pred[c]; + + diff += diff_stride; + pred += pred_stride; + src += src_stride; + } +} + +#if CONFIG_AV1_HIGHBITDEPTH +void aom_highbd_subtract_block_c(int rows, int cols, int16_t *diff, + ptrdiff_t diff_stride, const uint8_t *src8, + ptrdiff_t src_stride, const uint8_t *pred8, + ptrdiff_t pred_stride) { + int r, c; + uint16_t *src = CONVERT_TO_SHORTPTR(src8); + uint16_t *pred = CONVERT_TO_SHORTPTR(pred8); + + for (r = 0; r < rows; r++) { + for (c = 0; c < cols; c++) { + diff[c] = src[c] - pred[c]; + } + + diff += diff_stride; + pred += pred_stride; + src += src_stride; + } +} +#endif |