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SDL_cpuinfo.h
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
4 
5  This software is provided 'as-is', without any express or implied
6  warranty. In no event will the authors be held liable for any damages
7  arising from the use of this software.
8 
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12 
13  1. The origin of this software must not be misrepresented; you must not
14  claim that you wrote the original software. If you use this software
15  in a product, an acknowledgment in the product documentation would be
16  appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18  misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20 */
21 
28 #ifndef SDL_cpuinfo_h_
29 #define SDL_cpuinfo_h_
30 
31 #include "SDL_stdinc.h"
32 
33 /* Need to do this here because intrin.h has C++ code in it */
34 /* Visual Studio 2005 has a bug where intrin.h conflicts with winnt.h */
35 #if defined(_MSC_VER) && (_MSC_VER >= 1500) && (defined(_M_IX86) || defined(_M_X64))
36 #ifdef __clang__
37 /* Many of the intrinsics SDL uses are not implemented by clang with Visual Studio */
38 #undef __MMX__
39 #undef __SSE__
40 #undef __SSE2__
41 #else
42 #include <intrin.h>
43 #ifndef _WIN64
44 #define __MMX__
45 #define __3dNOW__
46 #endif
47 #define __SSE__
48 #define __SSE2__
49 #endif /* __clang__ */
50 #elif defined(__MINGW64_VERSION_MAJOR)
51 #include <intrin.h>
52 #else
53 #ifdef __ALTIVEC__
54 #if HAVE_ALTIVEC_H && !defined(__APPLE_ALTIVEC__) && !defined(SDL_DISABLE_ALTIVEC_H)
55 #include <altivec.h>
56 #undef pixel
57 #undef bool
58 #endif
59 #endif
60 #if defined(__3dNOW__) && !defined(SDL_DISABLE_MM3DNOW_H)
61 #include <mm3dnow.h>
62 #endif
63 #if HAVE_IMMINTRIN_H && !defined(SDL_DISABLE_IMMINTRIN_H)
64 #include <immintrin.h>
65 #else
66 #if defined(__MMX__) && !defined(SDL_DISABLE_MMINTRIN_H)
67 #include <mmintrin.h>
68 #endif
69 #if defined(__SSE__) && !defined(SDL_DISABLE_XMMINTRIN_H)
70 #include <xmmintrin.h>
71 #endif
72 #if defined(__SSE2__) && !defined(SDL_DISABLE_EMMINTRIN_H)
73 #include <emmintrin.h>
74 #endif
75 #if defined(__SSE3__) && !defined(SDL_DISABLE_PMMINTRIN_H)
76 #include <pmmintrin.h>
77 #endif
78 #endif /* HAVE_IMMINTRIN_H */
79 #endif /* compiler version */
80 
81 #include "begin_code.h"
82 /* Set up for C function definitions, even when using C++ */
83 #ifdef __cplusplus
84 extern "C" {
85 #endif
86 
87 /* This is a guess for the cacheline size used for padding.
88  * Most x86 processors have a 64 byte cache line.
89  * The 64-bit PowerPC processors have a 128 byte cache line.
90  * We'll use the larger value to be generally safe.
91  */
92 #define SDL_CACHELINE_SIZE 128
93 
97 extern DECLSPEC int SDLCALL SDL_GetCPUCount(void);
98 
105 extern DECLSPEC int SDLCALL SDL_GetCPUCacheLineSize(void);
106 
110 extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(void);
111 
115 extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void);
116 
120 extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void);
121 
125 extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void);
126 
130 extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void);
131 
135 extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void);
136 
140 extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE3(void);
141 
145 extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE41(void);
146 
150 extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE42(void);
151 
155 extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX(void);
156 
160 extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX2(void);
161 
165 extern DECLSPEC SDL_bool SDLCALL SDL_HasNEON(void);
166 
170 extern DECLSPEC int SDLCALL SDL_GetSystemRAM(void);
171 
172 
173 /* Ends C function definitions when using C++ */
174 #ifdef __cplusplus
175 }
176 #endif
177 #include "close_code.h"
178 
179 #endif /* SDL_cpuinfo_h_ */
180 
181 /* vi: set ts=4 sw=4 expandtab: */
DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void)
DECLSPEC SDL_bool SDLCALL SDL_HasAVX2(void)
DECLSPEC int SDLCALL SDL_GetCPUCacheLineSize(void)
DECLSPEC SDL_bool SDLCALL SDL_HasNEON(void)
DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void)
DECLSPEC SDL_bool SDLCALL SDL_HasSSE3(void)
DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void)
DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(void)
DECLSPEC int SDLCALL SDL_GetSystemRAM(void)
DECLSPEC SDL_bool SDLCALL SDL_HasAVX(void)
DECLSPEC int SDLCALL SDL_GetCPUCount(void)
DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void)
DECLSPEC SDL_bool SDLCALL SDL_HasSSE42(void)
DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void)
DECLSPEC SDL_bool SDLCALL SDL_HasSSE41(void)