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体验新版 GitCode,发现更多精彩内容 >>
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d0cd2a8c
编写于
11月 25, 2013
作者:
J
Janne Grunau
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差异文件
aarch64: bswap inline assembly
Signed-off-by:
N
Janne Grunau
<
janne-libav@jannau.net
>
上级
032d4da8
变更
2
隐藏空白更改
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并排
Showing
2 changed file
with
53 addition
and
1 deletion
+53
-1
libavutil/aarch64/bswap.h
libavutil/aarch64/bswap.h
+50
-0
libavutil/bswap.h
libavutil/bswap.h
+3
-1
未找到文件。
libavutil/aarch64/bswap.h
0 → 100644
浏览文件 @
d0cd2a8c
/*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; 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 */
libavutil/bswap.h
浏览文件 @
d0cd2a8c
...
...
@@ -34,7 +34,9 @@
#include "config.h"
#if ARCH_ARM
#if ARCH_AARCH64
# include "aarch64/bswap.h"
#elif ARCH_ARM
# include "arm/bswap.h"
#elif ARCH_AVR32
# include "avr32/bswap.h"
...
...
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