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 25static 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 43static void bswap16_buf(uint16_t *dst, const uint16_t *src, int len) 44{ 45 while (len--) 46 *dst++ = av_bswap16(*src++); 47} 48 49av_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