blob: a6e1ec069c58143dd278d1381a1f8d8a806860f6
1 | /* |
2 | * This file is part of FFmpeg. |
3 | * |
4 | * FFmpeg is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU Lesser General Public |
6 | * License as published by the Free Software Foundation; either |
7 | * version 2.1 of the License, or (at your option) any later version. |
8 | * |
9 | * FFmpeg is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with FFmpeg; if not, write to the Free Software |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
17 | */ |
18 | |
19 | #include <stdint.h> |
20 | |
21 | #include "libavutil/attributes.h" |
22 | #include "libavutil/bswap.h" |
23 | #include "bswapdsp.h" |
24 | |
25 | static void bswap_buf(uint32_t *dst, const uint32_t *src, int w) |
26 | { |
27 | int i; |
28 | |
29 | for (i = 0; i + 8 <= w; i += 8) { |
30 | dst[i + 0] = av_bswap32(src[i + 0]); |
31 | dst[i + 1] = av_bswap32(src[i + 1]); |
32 | dst[i + 2] = av_bswap32(src[i + 2]); |
33 | dst[i + 3] = av_bswap32(src[i + 3]); |
34 | dst[i + 4] = av_bswap32(src[i + 4]); |
35 | dst[i + 5] = av_bswap32(src[i + 5]); |
36 | dst[i + 6] = av_bswap32(src[i + 6]); |
37 | dst[i + 7] = av_bswap32(src[i + 7]); |
38 | } |
39 | for (; i < w; i++) |
40 | dst[i + 0] = av_bswap32(src[i + 0]); |
41 | } |
42 | |
43 | static void bswap16_buf(uint16_t *dst, const uint16_t *src, int len) |
44 | { |
45 | while (len--) |
46 | *dst++ = av_bswap16(*src++); |
47 | } |
48 | |
49 | av_cold void ff_bswapdsp_init(BswapDSPContext *c) |
50 | { |
51 | c->bswap_buf = bswap_buf; |
52 | c->bswap16_buf = bswap16_buf; |
53 | |
54 | if (ARCH_X86) |
55 | ff_bswapdsp_init_x86(c); |
56 | } |
57 |