| 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 | } |