Rev 1 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 1 | pmbaty | 1 | /* |
| 2 | Simple DirectMedia Layer |
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| 8 | pmbaty | 3 | Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> |
| 1 | pmbaty | 4 | |
| 5 | This software is provided 'as-is', without any express or implied |
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| 6 | warranty. In no event will the authors be held liable for any damages |
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| 7 | arising from the use of this software. |
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| 8 | |||
| 9 | Permission is granted to anyone to use this software for any purpose, |
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| 10 | including commercial applications, and to alter it and redistribute it |
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| 11 | freely, subject to the following restrictions: |
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| 12 | |||
| 13 | 1. The origin of this software must not be misrepresented; you must not |
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| 14 | claim that you wrote the original software. If you use this software |
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| 15 | in a product, an acknowledgment in the product documentation would be |
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| 16 | appreciated but is not required. |
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| 17 | 2. Altered source versions must be plainly marked as such, and must not be |
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| 18 | misrepresented as being the original software. |
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| 19 | 3. This notice may not be removed or altered from any source distribution. |
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| 20 | */ |
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| 21 | |||
| 22 | /** |
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| 23 | * \file SDL_cpuinfo.h |
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| 24 | * |
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| 25 | * CPU feature detection for SDL. |
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| 26 | */ |
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| 27 | |||
| 28 | #ifndef SDL_cpuinfo_h_ |
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| 29 | #define SDL_cpuinfo_h_ |
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| 30 | |||
| 31 | #include "SDL_stdinc.h" |
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| 32 | |||
| 33 | /* Need to do this here because intrin.h has C++ code in it */ |
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| 34 | /* Visual Studio 2005 has a bug where intrin.h conflicts with winnt.h */ |
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| 35 | #if defined(_MSC_VER) && (_MSC_VER >= 1500) && (defined(_M_IX86) || defined(_M_X64)) |
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| 36 | #ifdef __clang__ |
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| 37 | /* Many of the intrinsics SDL uses are not implemented by clang with Visual Studio */ |
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| 38 | #undef __MMX__ |
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| 39 | #undef __SSE__ |
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| 40 | #undef __SSE2__ |
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| 41 | #else |
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| 42 | #include <intrin.h> |
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| 43 | #ifndef _WIN64 |
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| 44 | #define __MMX__ |
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| 45 | #define __3dNOW__ |
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| 46 | #endif |
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| 47 | #define __SSE__ |
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| 48 | #define __SSE2__ |
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| 49 | #endif /* __clang__ */ |
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| 50 | #elif defined(__MINGW64_VERSION_MAJOR) |
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| 51 | #include <intrin.h> |
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| 52 | #else |
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| 53 | #ifdef __ALTIVEC__ |
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| 8 | pmbaty | 54 | #if defined(HAVE_ALTIVEC_H) && !defined(__APPLE_ALTIVEC__) && !defined(SDL_DISABLE_ALTIVEC_H) |
| 1 | pmbaty | 55 | #include <altivec.h> |
| 56 | #undef pixel |
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| 8 | pmbaty | 57 | #undef bool |
| 1 | pmbaty | 58 | #endif |
| 59 | #endif |
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| 8 | pmbaty | 60 | #if defined(__ARM_NEON__) && !defined(SDL_DISABLE_ARM_NEON_H) |
| 61 | #include <arm_neon.h> |
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| 1 | pmbaty | 62 | #endif |
| 8 | pmbaty | 63 | #if defined(__3dNOW__) && !defined(SDL_DISABLE_MM3DNOW_H) |
| 1 | pmbaty | 64 | #include <mm3dnow.h> |
| 65 | #endif |
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| 8 | pmbaty | 66 | #if defined(HAVE_IMMINTRIN_H) && !defined(SDL_DISABLE_IMMINTRIN_H) |
| 67 | #include <immintrin.h> |
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| 68 | #else |
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| 69 | #if defined(__MMX__) && !defined(SDL_DISABLE_MMINTRIN_H) |
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| 70 | #include <mmintrin.h> |
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| 71 | #endif |
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| 72 | #if defined(__SSE__) && !defined(SDL_DISABLE_XMMINTRIN_H) |
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| 1 | pmbaty | 73 | #include <xmmintrin.h> |
| 74 | #endif |
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| 8 | pmbaty | 75 | #if defined(__SSE2__) && !defined(SDL_DISABLE_EMMINTRIN_H) |
| 1 | pmbaty | 76 | #include <emmintrin.h> |
| 77 | #endif |
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| 8 | pmbaty | 78 | #if defined(__SSE3__) && !defined(SDL_DISABLE_PMMINTRIN_H) |
| 1 | pmbaty | 79 | #include <pmmintrin.h> |
| 80 | #endif |
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| 8 | pmbaty | 81 | #endif /* HAVE_IMMINTRIN_H */ |
| 82 | #endif /* compiler version */ |
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| 1 | pmbaty | 83 | |
| 84 | #include "begin_code.h" |
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| 85 | /* Set up for C function definitions, even when using C++ */ |
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| 86 | #ifdef __cplusplus |
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| 87 | extern "C" { |
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| 88 | #endif |
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| 89 | |||
| 90 | /* This is a guess for the cacheline size used for padding. |
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| 91 | * Most x86 processors have a 64 byte cache line. |
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| 92 | * The 64-bit PowerPC processors have a 128 byte cache line. |
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| 93 | * We'll use the larger value to be generally safe. |
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| 94 | */ |
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| 95 | #define SDL_CACHELINE_SIZE 128 |
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| 96 | |||
| 97 | /** |
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| 98 | * This function returns the number of CPU cores available. |
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| 99 | */ |
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| 100 | extern DECLSPEC int SDLCALL SDL_GetCPUCount(void); |
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| 101 | |||
| 102 | /** |
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| 103 | * This function returns the L1 cache line size of the CPU |
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| 104 | * |
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| 105 | * This is useful for determining multi-threaded structure padding |
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| 106 | * or SIMD prefetch sizes. |
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| 107 | */ |
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| 108 | extern DECLSPEC int SDLCALL SDL_GetCPUCacheLineSize(void); |
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| 109 | |||
| 110 | /** |
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| 111 | * This function returns true if the CPU has the RDTSC instruction. |
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| 112 | */ |
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| 113 | extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(void); |
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| 114 | |||
| 115 | /** |
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| 116 | * This function returns true if the CPU has AltiVec features. |
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| 117 | */ |
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| 118 | extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void); |
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| 119 | |||
| 120 | /** |
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| 121 | * This function returns true if the CPU has MMX features. |
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| 122 | */ |
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| 123 | extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void); |
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| 124 | |||
| 125 | /** |
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| 126 | * This function returns true if the CPU has 3DNow! features. |
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| 127 | */ |
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| 128 | extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void); |
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| 129 | |||
| 130 | /** |
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| 131 | * This function returns true if the CPU has SSE features. |
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| 132 | */ |
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| 133 | extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void); |
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| 134 | |||
| 135 | /** |
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| 136 | * This function returns true if the CPU has SSE2 features. |
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| 137 | */ |
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| 138 | extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void); |
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| 139 | |||
| 140 | /** |
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| 141 | * This function returns true if the CPU has SSE3 features. |
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| 142 | */ |
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| 143 | extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE3(void); |
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| 144 | |||
| 145 | /** |
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| 146 | * This function returns true if the CPU has SSE4.1 features. |
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| 147 | */ |
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| 148 | extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE41(void); |
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| 149 | |||
| 150 | /** |
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| 151 | * This function returns true if the CPU has SSE4.2 features. |
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| 152 | */ |
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| 153 | extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE42(void); |
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| 154 | |||
| 155 | /** |
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| 156 | * This function returns true if the CPU has AVX features. |
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| 157 | */ |
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| 158 | extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX(void); |
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| 159 | |||
| 160 | /** |
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| 161 | * This function returns true if the CPU has AVX2 features. |
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| 162 | */ |
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| 163 | extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX2(void); |
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| 164 | |||
| 165 | /** |
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| 8 | pmbaty | 166 | * This function returns true if the CPU has AVX-512F (foundation) features. |
| 167 | */ |
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| 168 | extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX512F(void); |
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| 169 | |||
| 170 | /** |
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| 1 | pmbaty | 171 | * This function returns true if the CPU has NEON (ARM SIMD) features. |
| 172 | */ |
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| 173 | extern DECLSPEC SDL_bool SDLCALL SDL_HasNEON(void); |
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| 174 | |||
| 175 | /** |
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| 176 | * This function returns the amount of RAM configured in the system, in MB. |
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| 177 | */ |
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| 178 | extern DECLSPEC int SDLCALL SDL_GetSystemRAM(void); |
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| 179 | |||
| 180 | /* Ends C function definitions when using C++ */ |
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| 181 | #ifdef __cplusplus |
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| 182 | } |
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| 183 | #endif |
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| 184 | #include "close_code.h" |
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| 185 | |||
| 186 | #endif /* SDL_cpuinfo_h_ */ |
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| 187 | |||
| 188 | /* vi: set ts=4 sw=4 expandtab: */ |