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#ifndef AVUTIL_AARCH64_BSWAP_H 20#define AVUTIL_AARCH64_BSWAP_H 21 22#include <stdint.h> 23#include "config.h" 24#include "libavutil/attributes.h" 25 26#if HAVE_INLINE_ASM 27 28#define av_bswap16 av_bswap16 29static av_always_inline av_const unsigned av_bswap16(unsigned x) 30{ 31 __asm__("rev16 %w0, %w0" : "+r"(x)); 32 return x; 33} 34 35#define av_bswap32 av_bswap32 36static av_always_inline av_const uint32_t av_bswap32(uint32_t x) 37{ 38 __asm__("rev %w0, %w0" : "+r"(x)); 39 return x; 40} 41 42#define av_bswap64 av_bswap64 43static av_always_inline av_const uint64_t av_bswap64(uint64_t x) 44{ 45 __asm__("rev %0, %0" : "+r"(x)); 46 return x; 47} 48 49#endif /* HAVE_INLINE_ASM */ 50#endif /* AVUTIL_AARCH64_BSWAP_H */ 51