diff options
Diffstat (limited to 'chromium/third_party/ffmpeg/libavutil/aarch64/bswap.h')
-rw-r--r-- | chromium/third_party/ffmpeg/libavutil/aarch64/bswap.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/chromium/third_party/ffmpeg/libavutil/aarch64/bswap.h b/chromium/third_party/ffmpeg/libavutil/aarch64/bswap.h new file mode 100644 index 00000000000..1e735c52cf7 --- /dev/null +++ b/chromium/third_party/ffmpeg/libavutil/aarch64/bswap.h @@ -0,0 +1,50 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_AARCH64_BSWAP_H +#define AVUTIL_AARCH64_BSWAP_H + +#include <stdint.h> +#include "config.h" +#include "libavutil/attributes.h" + +#if HAVE_INLINE_ASM + +#define av_bswap16 av_bswap16 +static av_always_inline av_const unsigned av_bswap16(unsigned x) +{ + __asm__("rev16 %w0, %w0" : "+r"(x)); + return x; +} + +#define av_bswap32 av_bswap32 +static av_always_inline av_const uint32_t av_bswap32(uint32_t x) +{ + __asm__("rev %w0, %w0" : "+r"(x)); + return x; +} + +#define av_bswap64 av_bswap64 +static av_always_inline av_const uint64_t av_bswap64(uint64_t x) +{ + __asm__("rev %0, %0" : "+r"(x)); + return x; +} + +#endif /* HAVE_INLINE_ASM */ +#endif /* AVUTIL_AARCH64_BSWAP_H */ |