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libavutil
x86
intreadwrite.h
Go to the documentation of this file.
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/*
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* Copyright (c) 2010 Alexander Strange <astrange@ithinksw.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_X86_INTREADWRITE_H
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#define AVUTIL_X86_INTREADWRITE_H
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#include <stdint.h>
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#include "
config.h
"
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#include "
libavutil/attributes.h
"
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#if HAVE_MMX
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#if !HAVE_FAST_64BIT && defined(__MMX__)
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#define AV_COPY64 AV_COPY64
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static
av_always_inline
void
AV_COPY64
(
void
*d,
const
void
*
s
)
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{
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__asm__(
"movq %1, %%mm0 \n\t"
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"movq %%mm0, %0 \n\t"
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:
"=m"
(*(uint64_t*)d)
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:
"m"
(*(
const
uint64_t*)s)
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:
"mm0"
);
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}
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#define AV_SWAP64 AV_SWAP64
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static
av_always_inline
void
AV_SWAP64
(
void
*
a
,
void
*
b
)
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{
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__asm__(
"movq %1, %%mm0 \n\t"
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"movq %0, %%mm1 \n\t"
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"movq %%mm0, %0 \n\t"
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"movq %%mm1, %1 \n\t"
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:
"+m"
(*(uint64_t*)a),
"+m"
(*(uint64_t*)b)
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::
"mm0"
,
"mm1"
);
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}
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#define AV_ZERO64 AV_ZERO64
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static
av_always_inline
void
AV_ZERO64
(
void
*d)
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{
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__asm__(
"pxor %%mm0, %%mm0 \n\t"
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"movq %%mm0, %0 \n\t"
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:
"=m"
(*(uint64_t*)d)
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::
"mm0"
);
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}
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#endif
/* !HAVE_FAST_64BIT && defined(__MMX__) */
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#ifdef __SSE__
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#define AV_COPY128 AV_COPY128
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static
av_always_inline
void
AV_COPY128
(
void
*d,
const
void
*s)
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{
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struct
v {uint64_t v[2];};
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__asm__(
"movaps %1, %%xmm0 \n\t"
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"movaps %%xmm0, %0 \n\t"
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:
"=m"
(*(
struct
v*)d)
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:
"m"
(*(
const
struct
v*)s)
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:
"xmm0"
);
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}
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#endif
/* __SSE__ */
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#ifdef __SSE2__
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#define AV_ZERO128 AV_ZERO128
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static
av_always_inline
void
AV_ZERO128
(
void
*d)
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{
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struct
v {uint64_t v[2];};
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__asm__(
"pxor %%xmm0, %%xmm0 \n\t"
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"movdqa %%xmm0, %0 \n\t"
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:
"=m"
(*(
struct
v*)d)
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::
"xmm0"
);
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}
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#endif
/* __SSE2__ */
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#endif
/* HAVE_MMX */
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#endif
/* AVUTIL_X86_INTREADWRITE_H */
s
const char * s
Definition:
avisynth_c.h:768
b
const char * b
Definition:
vf_curves.c:113
attributes.h
Macro definitions for various function/variable attributes.
config.h
AV_COPY64
#define AV_COPY64(d, s)
Definition:
intreadwrite.h:595
AV_ZERO128
#define AV_ZERO128(d)
Definition:
intreadwrite.h:627
AV_SWAP64
#define AV_SWAP64(a, b)
Definition:
intreadwrite.h:609
AV_ZERO64
#define AV_ZERO64(d)
Definition:
intreadwrite.h:623
AV_COPY128
#define AV_COPY128(d, s)
Definition:
intreadwrite.h:599
av_always_inline
#define av_always_inline
Definition:
attributes.h:39
a
a
Definition:
h264pred_template.c:468
Generated on Fri Jan 12 2018 01:46:00 for FFmpeg by
1.8.6