1 /*
2 * Copyright (c) 2016, 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 <stdlib.h>
13
14 #include "config/aom_config.h"
15 #include "config/aom_dsp_rtcd.h"
16
17 #include "aom/aom_integer.h"
18 #include "aom_ports/mem.h"
19
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)20 void aom_subtract_block_c(int rows, int cols, int16_t *diff,
21 ptrdiff_t diff_stride, const uint8_t *src,
22 ptrdiff_t src_stride, const uint8_t *pred,
23 ptrdiff_t pred_stride) {
24 int r, c;
25
26 for (r = 0; r < rows; r++) {
27 for (c = 0; c < cols; c++) diff[c] = src[c] - pred[c];
28
29 diff += diff_stride;
30 pred += pred_stride;
31 src += src_stride;
32 }
33 }
34
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 bd)35 void aom_highbd_subtract_block_c(int rows, int cols, int16_t *diff,
36 ptrdiff_t diff_stride, const uint8_t *src8,
37 ptrdiff_t src_stride, const uint8_t *pred8,
38 ptrdiff_t pred_stride, int bd) {
39 int r, c;
40 uint16_t *src = CONVERT_TO_SHORTPTR(src8);
41 uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
42 (void)bd;
43
44 for (r = 0; r < rows; r++) {
45 for (c = 0; c < cols; c++) {
46 diff[c] = src[c] - pred[c];
47 }
48
49 diff += diff_stride;
50 pred += pred_stride;
51 src += src_stride;
52 }
53 }
54