repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (c) 2010 Alexander Strange <astrange@ithinksw.com> | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef AVUTIL_X86_INTREADWRITE_H | |
| 22 | #define AVUTIL_X86_INTREADWRITE_H | |
| 23 | ||
| 24 | #include <stdint.h> | |
| 25 | #include "config.h" | |
| 26 | #include "libavutil/attributes.h" | |
| 27 | ||
| 28 | #if HAVE_MMX | |
| 29 | ||
| 30 | #if !HAVE_FAST_64BIT && defined(__MMX__) | |
| 31 | ||
| 32 | #define AV_COPY64 AV_COPY64 | |
| 33 | static av_always_inline void AV_COPY64(void *d, const void *s) | |
| 34 | { | |
| 35 | __asm__("movq %1, %%mm0 \n\t" | |
| 36 | "movq %%mm0, %0 \n\t" | |
| 37 | : "=m"(*(uint64_t*)d) | |
| 38 | : "m" (*(const uint64_t*)s) | |
| 39 | : "mm0"); | |
| 40 | } | |
| 41 | ||
| 42 | #define AV_SWAP64 AV_SWAP64 | |
| 43 | static av_always_inline void AV_SWAP64(void *a, void *b) | |
| 44 | { | |
| 45 | __asm__("movq %1, %%mm0 \n\t" | |
| 46 | "movq %0, %%mm1 \n\t" | |
| 47 | "movq %%mm0, %0 \n\t" | |
| 48 | "movq %%mm1, %1 \n\t" | |
| 49 | : "+m"(*(uint64_t*)a), "+m"(*(uint64_t*)b) | |
| 50 | ::"mm0", "mm1"); | |
| 51 | } | |
| 52 | ||
| 53 | #define AV_ZERO64 AV_ZERO64 | |
| 54 | static av_always_inline void AV_ZERO64(void *d) | |
| 55 | { | |
| 56 | __asm__("pxor %%mm0, %%mm0 \n\t" | |
| 57 | "movq %%mm0, %0 \n\t" | |
| 58 | : "=m"(*(uint64_t*)d) | |
| 59 | :: "mm0"); | |
| 60 | } | |
| 61 | ||
| 62 | #endif /* !HAVE_FAST_64BIT && defined(__MMX__) */ | |
| 63 | ||
| 64 | #ifdef __SSE__ | |
| 65 | ||
| 66 | #define AV_COPY128 AV_COPY128 | |
| 67 | static av_always_inline void AV_COPY128(void *d, const void *s) | |
| 68 | { | |
| 69 | struct v {uint64_t v[2];}; | |
| 70 | ||
| 71 | __asm__("movaps %1, %%xmm0 \n\t" | |
| 72 | "movaps %%xmm0, %0 \n\t" | |
| 73 | : "=m"(*(struct v*)d) | |
| 74 | : "m" (*(const struct v*)s) | |
| 75 | : "xmm0"); | |
| 76 | } | |
| 77 | ||
| 78 | #endif /* __SSE__ */ | |
| 79 | ||
| 80 | #ifdef __SSE2__ | |
| 81 | ||
| 82 | #define AV_ZERO128 AV_ZERO128 | |
| 83 | static av_always_inline void AV_ZERO128(void *d) | |
| 84 | { | |
| 85 | struct v {uint64_t v[2];}; | |
| 86 | ||
| 87 | __asm__("pxor %%xmm0, %%xmm0 \n\t" | |
| 88 | "movdqa %%xmm0, %0 \n\t" | |
| 89 | : "=m"(*(struct v*)d) | |
| 90 | :: "xmm0"); | |
| 91 | } | |
| 92 | ||
| 93 | #endif /* __SSE2__ */ | |
| 94 | ||
| 95 | #endif /* HAVE_MMX */ | |
| 96 | ||
| 97 | #endif /* AVUTIL_X86_INTREADWRITE_H */ |