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author Sam Lantinga <slouken@libsdl.org>
date Thu, 27 Jan 2011 20:14:10 -0800
parents 02b860cbc7ce
children b3f075368b1f
rev   line source
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22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /**
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24 * \file SDL_cpuinfo.h
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25 *
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26 * CPU feature detection for SDL.
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27 */
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29 #ifndef _SDL_cpuinfo_h
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30 #define _SDL_cpuinfo_h
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31
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32 #include "SDL_stdinc.h"
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33
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34 #include "begin_code.h"
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35 /* Set up for C function definitions, even when using C++ */
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36 #ifdef __cplusplus
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37 /* *INDENT-OFF* */
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38 extern "C" {
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39 /* *INDENT-ON* */
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40 #endif
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41
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42 /* This is a guess for the cacheline size used for padding.
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43 * Most x86 processors have a 64 byte cache line.
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44 * The 64-bit PowerPC processors have a 128 byte cache line.
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45 * We'll use the larger value to be generally safe.
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46 */
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47 #define SDL_CACHELINE_SIZE 128
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48
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49 /**
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50 * This function returns the number of CPU cores available.
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51 */
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52 extern DECLSPEC int SDLCALL SDL_GetCPUCount(void);
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53
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54 /**
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55 * This function returns true if the CPU has the RDTSC instruction.
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56 */
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57 extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(void);
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58
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59 /**
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60 * This function returns true if the CPU has MMX features.
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61 */
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62 extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void);
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63
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64 /**
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65 * This function returns true if the CPU has MMX Ext.\ features.
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66 */
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67 extern DECLSPEC SDL_bool SDLCALL SDL_HasMMXExt(void);
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68
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69 /**
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70 * This function returns true if the CPU has 3DNow!\ features.
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71 */
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72 extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void);
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73
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74 /**
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75 * This function returns true if the CPU has 3DNow!\ Ext.\ features.
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76 */
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77 extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNowExt(void);
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78
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79 /**
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80 * This function returns true if the CPU has SSE features.
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81 */
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82 extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void);
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83
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84 /**
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85 * This function returns true if the CPU has SSE2 features.
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86 */
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87 extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void);
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88
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89 /**
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90 * This function returns true if the CPU has AltiVec features.
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91 */
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92 extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void);
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93
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94 /* Ends C function definitions when using C++ */
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95 #ifdef __cplusplus
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96 /* *INDENT-OFF* */
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97 }
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98 /* *INDENT-ON* */
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99 #endif
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100 #include "close_code.h"
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102 #endif /* _SDL_cpuinfo_h */
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104 /* vi: set ts=4 sw=4 expandtab: */