BRL-CAD
simd.h
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1 /* S I M D . H
2  * BRL-CAD
3  *
4  * Copyright (c) 2004-2024 United States Government as represented by
5  * the U.S. Army Research Laboratory.
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public License
9  * version 2.1 as published by the Free Software Foundation.
10  *
11  * This library is distributed in the hope that it will be useful, but
12  * 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 this file; see the file named COPYING for more
18  * information.
19  */
20 
21 #ifndef BU_SIMD_H
22 #define BU_SIMD_H
23 
24 #include "common.h"
25 
26 #include "bu/defines.h"
27 
28 __BEGIN_DECLS
29 
30 /** @addtogroup bu_simd
31  * @brief
32  * Single Instruction Multiple Data support.
33  */
34 /** @{ */
35 /** @file bu/simd.h */
36 
37 #define BU_SIMD_SSE4_2 7
38 #define BU_SIMD_SSE4_1 6
39 #define BU_SIMD_SSE3 5
40 #define BU_SIMD_ALTIVEC 4
41 #define BU_SIMD_SSE2 3
42 #define BU_SIMD_SSE 2
43 #define BU_SIMD_MMX 1
44 #define BU_SIMD_NONE 0
45 /**
46  * Detect SIMD capabilities at runtime.
47  */
48 BU_EXPORT extern int bu_simd_level(void);
49 
50 /**
51  * Detect if requested SIMD capabilities are available at runtime.
52  * Returns 1 if they are, 0 if they are not.
53  */
54 BU_EXPORT extern int bu_simd_supported(int level);
55 
56 /** @} */
57 
58 __END_DECLS
59 
60 #endif /* BU_SIMD_H */
61 
62 /*
63  * Local Variables:
64  * mode: C
65  * tab-width: 8
66  * indent-tabs-mode: t
67  * c-file-style: "stroustrup"
68  * End:
69  * ex: shiftwidth=4 tabstop=8
70  */
common.h
Header file for the BRL-CAD common definitions.
bu_simd_supported
int bu_simd_supported(int level)
bu_simd_level
int bu_simd_level(void)