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comparison libavutil/x86/intreadwrite.h @ 2:897f711a7157

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rearrange to work with autoconf
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Tue, 25 Sep 2012 15:55:33 +0200
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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 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 */