0,0 → 1,97 |
/* |
* Copyright (c) 2010 Alexander Strange <astrange@ithinksw.com> |
* |
* 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_X86_INTREADWRITE_H |
#define AVUTIL_X86_INTREADWRITE_H |
|
#include <stdint.h> |
#include "config.h" |
#include "libavutil/attributes.h" |
|
#if HAVE_MMX |
|
#if !HAVE_FAST_64BIT && defined(__MMX__) |
|
#define AV_COPY64 AV_COPY64 |
static av_always_inline void AV_COPY64(void *d, const void *s) |
{ |
__asm__("movq %1, %%mm0 \n\t" |
"movq %%mm0, %0 \n\t" |
: "=m"(*(uint64_t*)d) |
: "m" (*(const uint64_t*)s) |
: "mm0"); |
} |
|
#define AV_SWAP64 AV_SWAP64 |
static av_always_inline void AV_SWAP64(void *a, void *b) |
{ |
__asm__("movq %1, %%mm0 \n\t" |
"movq %0, %%mm1 \n\t" |
"movq %%mm0, %0 \n\t" |
"movq %%mm1, %1 \n\t" |
: "+m"(*(uint64_t*)a), "+m"(*(uint64_t*)b) |
::"mm0", "mm1"); |
} |
|
#define AV_ZERO64 AV_ZERO64 |
static av_always_inline void AV_ZERO64(void *d) |
{ |
__asm__("pxor %%mm0, %%mm0 \n\t" |
"movq %%mm0, %0 \n\t" |
: "=m"(*(uint64_t*)d) |
:: "mm0"); |
} |
|
#endif /* !HAVE_FAST_64BIT && defined(__MMX__) */ |
|
#ifdef __SSE__ |
|
#define AV_COPY128 AV_COPY128 |
static av_always_inline void AV_COPY128(void *d, const void *s) |
{ |
struct v {uint64_t v[2];}; |
|
__asm__("movaps %1, %%xmm0 \n\t" |
"movaps %%xmm0, %0 \n\t" |
: "=m"(*(struct v*)d) |
: "m" (*(const struct v*)s) |
: "xmm0"); |
} |
|
#endif /* __SSE__ */ |
|
#ifdef __SSE2__ |
|
#define AV_ZERO128 AV_ZERO128 |
static av_always_inline void AV_ZERO128(void *d) |
{ |
struct v {uint64_t v[2];}; |
|
__asm__("pxor %%xmm0, %%xmm0 \n\t" |
"movdqa %%xmm0, %0 \n\t" |
: "=m"(*(struct v*)d) |
:: "xmm0"); |
} |
|
#endif /* __SSE2__ */ |
|
#endif /* HAVE_MMX */ |
|
#endif /* AVUTIL_X86_INTREADWRITE_H */ |