Mercurial > sdl-ios-xcode
annotate src/cpuinfo/SDL_cpuinfo.c @ 3584:41d01d70659c
Fixed cpuid assembly to work on PIC code
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 16 Dec 2009 16:42:04 +0000 |
parents | 951dd6a5d1a2 |
children | b6758aee0dd4 |
rev | line source |
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739
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 |
2859 | 3 Copyright (C) 1997-2009 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. |
739
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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 #include "SDL_config.h" |
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23 |
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24 /* CPU feature detection for SDL */ |
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25 |
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26 #include "SDL_cpuinfo.h" |
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27 |
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28 #ifdef HAVE_SYSCTLBYNAME |
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29 #include <sys/types.h> |
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30 #include <sys/sysctl.h> |
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31 #endif |
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32 #if defined(__MACOSX__) && (defined(__ppc__) || defined(__ppc64__)) |
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33 #include <sys/sysctl.h> /* For AltiVec check */ |
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Cleaning up warnings on MacOS X
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34 #elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP |
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35 #include <signal.h> |
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36 #include <setjmp.h> |
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37 #endif |
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38 #ifdef __WIN32__ |
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39 #define WIN32_LEAN_AND_MEAN |
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40 #include <windows.h> |
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41 #endif |
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42 |
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43 #define CPU_HAS_RDTSC 0x00000001 |
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44 #define CPU_HAS_MMX 0x00000002 |
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45 #define CPU_HAS_MMXEXT 0x00000004 |
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46 #define CPU_HAS_3DNOW 0x00000010 |
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Fixed bugs in CPU feature detection and added extended feature detection
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47 #define CPU_HAS_3DNOWEXT 0x00000020 |
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48 #define CPU_HAS_SSE 0x00000040 |
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49 #define CPU_HAS_SSE2 0x00000080 |
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50 #define CPU_HAS_ALTIVEC 0x00000100 |
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51 |
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52 #if SDL_ALTIVEC_BLITTERS && HAVE_SETJMP && !__MACOSX__ |
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53 /* This is the brute force way of detecting instruction sets... |
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54 the idea is borrowed from the libmpeg2 library - thanks! |
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55 */ |
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56 static jmp_buf jmpbuf; |
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57 static void |
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58 illegal_instruction(int sig) |
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59 { |
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60 longjmp(jmpbuf, 1); |
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61 } |
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62 #endif /* HAVE_SETJMP */ |
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63 |
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64 static __inline__ int |
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65 CPU_haveCPUID(void) |
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66 { |
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67 int has_CPUID = 0; |
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68 /* *INDENT-OFF* */ |
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69 #if defined(__GNUC__) && defined(i386) |
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70 __asm__ ( |
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71 " pushfl # Get original EFLAGS \n" |
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72 " popl %%eax \n" |
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73 " movl %%eax,%%ecx \n" |
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74 " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n" |
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75 " pushl %%eax # Save new EFLAGS value on stack \n" |
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76 " popfl # Replace current EFLAGS value \n" |
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77 " pushfl # Get new EFLAGS \n" |
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78 " popl %%eax # Store new EFLAGS in EAX \n" |
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79 " xorl %%ecx,%%eax # Can not toggle ID bit, \n" |
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80 " jz 1f # Processor=80486 \n" |
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81 " movl $1,%0 # We have CPUID support \n" |
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82 "1: \n" |
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83 : "=m" (has_CPUID) |
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84 : |
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85 : "%eax", "%ecx" |
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86 ); |
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87 #elif defined(__GNUC__) && defined(__x86_64__) |
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88 /* Technically, if this is being compiled under __x86_64__ then it has |
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89 CPUid by definition. But it's nice to be able to prove it. :) */ |
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90 __asm__ ( |
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91 " pushfq # Get original EFLAGS \n" |
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92 " popq %%rax \n" |
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93 " movq %%rax,%%rcx \n" |
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94 " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n" |
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95 " pushq %%rax # Save new EFLAGS value on stack \n" |
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96 " popfq # Replace current EFLAGS value \n" |
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97 " pushfq # Get new EFLAGS \n" |
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98 " popq %%rax # Store new EFLAGS in EAX \n" |
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99 " xorl %%ecx,%%eax # Can not toggle ID bit, \n" |
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100 " jz 1f # Processor=80486 \n" |
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101 " movl $1,%0 # We have CPUID support \n" |
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102 "1: \n" |
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103 : "=m" (has_CPUID) |
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104 : |
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105 : "%rax", "%rcx" |
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106 ); |
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107 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) |
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108 __asm { |
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109 pushfd ; Get original EFLAGS |
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110 pop eax |
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111 mov ecx, eax |
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112 xor eax, 200000h ; Flip ID bit in EFLAGS |
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113 push eax ; Save new EFLAGS value on stack |
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114 popfd ; Replace current EFLAGS value |
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115 pushfd ; Get new EFLAGS |
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116 pop eax ; Store new EFLAGS in EAX |
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117 xor eax, ecx ; Can not toggle ID bit, |
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118 jz done ; Processor=80486 |
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119 mov has_CPUID,1 ; We have CPUID support |
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120 done: |
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121 } |
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122 #elif defined(__sun) && defined(__i386) |
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123 __asm ( |
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124 " pushfl \n" |
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125 " popl %eax \n" |
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126 " movl %eax,%ecx \n" |
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127 " xorl $0x200000,%eax \n" |
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128 " pushl %eax \n" |
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129 " popfl \n" |
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130 " pushfl \n" |
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131 " popl %eax \n" |
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132 " xorl %ecx,%eax \n" |
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133 " jz 1f \n" |
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134 " movl $1,-8(%ebp) \n" |
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135 "1: \n" |
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136 ); |
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137 #elif defined(__sun) && defined(__amd64) |
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138 __asm ( |
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139 " pushfq \n" |
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140 " popq %rax \n" |
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141 " movq %rax,%rcx \n" |
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142 " xorl $0x200000,%eax \n" |
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143 " pushq %rax \n" |
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144 " popfq \n" |
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145 " pushfq \n" |
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146 " popq %rax \n" |
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147 " xorl %ecx,%eax \n" |
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148 " jz 1f \n" |
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149 " movl $1,-8(%rbp) \n" |
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150 "1: \n" |
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151 ); |
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152 #endif |
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153 /* *INDENT-ON* */ |
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154 return has_CPUID; |
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155 } |
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156 |
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157 #if defined(__GNUC__) && (defined(i386) || defined(__x86_64__)) |
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158 #define cpuid(func, a, b, c, d) \ |
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159 __asm__ __volatile__ ( \ |
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160 " pushl %%ebx \n" \ |
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161 " cpuid \n" \ |
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162 " movl %%ebx, %%esi \n" \ |
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163 " popl %%ebx \n" : \ |
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164 "=a" (a), "=S" (b), "=c" (c), "=d" (d) : "a" (func)) |
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165 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) |
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166 #define cpuid(func, a, b, c, d) \ |
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167 __asm { \ |
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168 __asm mov eax, func \ |
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169 __asm cpuid \ |
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170 __asm mov a, eax \ |
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171 __asm mov b, ebx \ |
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172 __asm mov c, ecx \ |
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173 __asm mov d, edx \ |
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174 } |
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175 #else |
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176 #define cpuid(func, a, b, c, d) \ |
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177 a = b = c = d = 0 |
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178 #endif |
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179 |
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180 static __inline__ int |
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181 CPU_getCPUIDFeatures(void) |
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182 { |
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183 int features = 0; |
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184 int a, b, c, d; |
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185 |
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186 cpuid(0, a, b, c, d); |
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187 if (a >= 1) { |
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188 cpuid(1, a, b, c, d); |
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189 features = d; |
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190 } |
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191 return features; |
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192 } |
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193 |
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194 static __inline__ int |
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195 CPU_getCPUIDFeaturesExt(void) |
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196 { |
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197 int features = 0; |
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198 int a, b, c, d; |
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199 |
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200 cpuid(0x80000000, a, b, c, d); |
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201 if (a >= 0x80000001) { |
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202 cpuid(0x80000001, a, b, c, d); |
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203 features = d; |
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204 } |
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205 return features; |
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206 } |
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207 |
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208 static __inline__ int |
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209 CPU_haveRDTSC(void) |
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210 { |
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211 if (CPU_haveCPUID()) { |
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212 return (CPU_getCPUIDFeatures() & 0x00000010); |
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213 } |
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214 return 0; |
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215 } |
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216 |
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217 static __inline__ int |
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218 CPU_haveMMX(void) |
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219 { |
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220 if (CPU_haveCPUID()) { |
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221 return (CPU_getCPUIDFeatures() & 0x00800000); |
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222 } |
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223 return 0; |
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224 } |
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225 |
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226 static __inline__ int |
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227 CPU_haveMMXExt(void) |
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228 { |
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229 if (CPU_haveCPUID()) { |
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230 return (CPU_getCPUIDFeaturesExt() & 0x00400000); |
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231 } |
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232 return 0; |
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233 } |
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234 |
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235 static __inline__ int |
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236 CPU_have3DNow(void) |
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237 { |
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238 if (CPU_haveCPUID()) { |
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239 return (CPU_getCPUIDFeaturesExt() & 0x80000000); |
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240 } |
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241 return 0; |
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242 } |
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243 |
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244 static __inline__ int |
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245 CPU_have3DNowExt(void) |
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246 { |
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247 if (CPU_haveCPUID()) { |
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248 return (CPU_getCPUIDFeaturesExt() & 0x40000000); |
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249 } |
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250 return 0; |
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251 } |
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252 |
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253 static __inline__ int |
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254 CPU_haveSSE(void) |
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255 { |
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256 if (CPU_haveCPUID()) { |
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257 return (CPU_getCPUIDFeatures() & 0x02000000); |
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258 } |
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259 return 0; |
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260 } |
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261 |
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262 static __inline__ int |
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263 CPU_haveSSE2(void) |
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264 { |
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265 if (CPU_haveCPUID()) { |
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266 return (CPU_getCPUIDFeatures() & 0x04000000); |
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267 } |
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268 return 0; |
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269 } |
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270 |
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271 static __inline__ int |
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272 CPU_haveAltiVec(void) |
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273 { |
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274 volatile int altivec = 0; |
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275 #if defined(__MACOSX__) && (defined(__ppc__) || defined(__ppc64__)) |
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276 int selectors[2] = { CTL_HW, HW_VECTORUNIT }; |
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277 int hasVectorUnit = 0; |
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278 size_t length = sizeof(hasVectorUnit); |
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279 int error = sysctl(selectors, 2, &hasVectorUnit, &length, NULL, 0); |
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280 if (0 == error) |
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281 altivec = (hasVectorUnit != 0); |
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282 #elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP |
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283 void (*handler) (int sig); |
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284 handler = signal(SIGILL, illegal_instruction); |
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285 if (setjmp(jmpbuf) == 0) { |
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286 asm volatile ("mtspr 256, %0\n\t" "vand %%v0, %%v0, %%v0"::"r" (-1)); |
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287 altivec = 1; |
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288 } |
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289 signal(SIGILL, handler); |
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290 #endif |
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291 return altivec; |
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292 } |
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293 |
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294 static int SDL_CPUCount = 0; |
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295 |
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296 int |
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297 SDL_GetCPUCount() |
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298 { |
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299 if (!SDL_CPUCount) { |
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300 #ifdef HAVE_SYSCTLBYNAME |
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301 { |
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302 size_t size = sizeof(SDL_CPUCount); |
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303 sysctlbyname("hw.ncpu", &SDL_CPUCount, &size, NULL, 0); |
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304 } |
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305 #endif |
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306 #ifdef __WIN32__ |
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307 { |
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308 SYSTEM_INFO info; |
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309 GetSystemInfo(&info); |
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310 SDL_CPUCount = info.dwNumberOfProcessors; |
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311 } |
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312 #endif |
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313 /* There has to be at least 1, right? :) */ |
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314 if (!SDL_CPUCount) { |
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315 SDL_CPUCount = 1; |
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316 } |
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317 } |
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318 return SDL_CPUCount; |
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319 } |
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320 |
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321 /* Oh, such a sweet sweet trick, just not very useful. :) */ |
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322 const char * |
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323 SDL_GetCPUType() |
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324 { |
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325 static char SDL_CPUType[48]; |
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326 |
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327 if (!SDL_CPUType[0]) { |
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328 int i = 0; |
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329 int a, b, c, d; |
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330 |
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331 if (CPU_haveCPUID()) { |
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332 cpuid(0x80000000, a, b, c, d); |
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333 if (a >= 0x80000004) { |
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334 cpuid(0x80000002, a, b, c, d); |
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335 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
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|
336 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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changeset
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337 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
|
338 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
|
339 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
|
340 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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341 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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changeset
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342 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
|
343 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
|
344 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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changeset
|
345 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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changeset
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346 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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changeset
|
347 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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changeset
|
348 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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changeset
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349 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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350 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
351 cpuid(0x80000003, a, b, c, d); |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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352 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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353 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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354 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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355 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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356 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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357 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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358 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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359 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
360 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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361 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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362 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
363 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
364 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
365 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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366 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
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367 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
368 cpuid(0x80000004, a, b, c, d); |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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369 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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370 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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371 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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372 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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373 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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374 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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375 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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376 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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377 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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378 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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379 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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380 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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381 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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changeset
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382 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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383 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
951dd6a5d1a2
Implemented Windows version of SDL_GetCPUCount()
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parents:
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diff
changeset
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384 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8; |
3579
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
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parents:
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385 } |
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
386 } |
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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387 if (!SDL_CPUType[0]) { |
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
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parents:
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diff
changeset
|
388 SDL_strlcpy(SDL_CPUType, "Unknown", sizeof(SDL_CPUType)); |
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
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parents:
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diff
changeset
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389 } |
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents:
3515
diff
changeset
|
390 } |
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents:
3515
diff
changeset
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391 return SDL_CPUType; |
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents:
3515
diff
changeset
|
392 } |
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents:
3515
diff
changeset
|
393 |
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
394 static Uint32 SDL_CPUFeatures = 0xFFFFFFFF; |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
395 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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changeset
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396 static Uint32 |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
397 SDL_GetCPUFeatures(void) |
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
398 { |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
399 if (SDL_CPUFeatures == 0xFFFFFFFF) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
400 SDL_CPUFeatures = 0; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
401 if (CPU_haveRDTSC()) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
402 SDL_CPUFeatures |= CPU_HAS_RDTSC; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
403 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
404 if (CPU_haveMMX()) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
405 SDL_CPUFeatures |= CPU_HAS_MMX; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
406 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
407 if (CPU_haveMMXExt()) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
408 SDL_CPUFeatures |= CPU_HAS_MMXEXT; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
409 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
410 if (CPU_have3DNow()) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
411 SDL_CPUFeatures |= CPU_HAS_3DNOW; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
412 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
413 if (CPU_have3DNowExt()) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
414 SDL_CPUFeatures |= CPU_HAS_3DNOWEXT; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
415 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
416 if (CPU_haveSSE()) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
417 SDL_CPUFeatures |= CPU_HAS_SSE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
418 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
419 if (CPU_haveSSE2()) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
420 SDL_CPUFeatures |= CPU_HAS_SSE2; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
421 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
422 if (CPU_haveAltiVec()) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
423 SDL_CPUFeatures |= CPU_HAS_ALTIVEC; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
424 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
425 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
426 return SDL_CPUFeatures; |
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
427 } |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
428 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
429 SDL_bool |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
430 SDL_HasRDTSC(void) |
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
431 { |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
432 if (SDL_GetCPUFeatures() & CPU_HAS_RDTSC) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
433 return SDL_TRUE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
434 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
435 return SDL_FALSE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
436 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
437 |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
438 SDL_bool |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
439 SDL_HasMMX(void) |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
diff
changeset
|
440 { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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441 if (SDL_GetCPUFeatures() & CPU_HAS_MMX) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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442 return SDL_TRUE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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443 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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444 return SDL_FALSE; |
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
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445 } |
71ee03909f42
Greatly simplified the SDL CPU info code
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446 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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447 SDL_bool |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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448 SDL_HasMMXExt(void) |
739
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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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449 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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450 if (SDL_GetCPUFeatures() & CPU_HAS_MMXEXT) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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451 return SDL_TRUE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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452 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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453 return SDL_FALSE; |
739
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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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454 } |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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455 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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456 SDL_bool |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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457 SDL_Has3DNow(void) |
804
b2fda076b02e
*** empty log message ***
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parents:
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458 { |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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459 if (SDL_GetCPUFeatures() & CPU_HAS_3DNOW) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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460 return SDL_TRUE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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461 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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462 return SDL_FALSE; |
739
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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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463 } |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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464 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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465 SDL_bool |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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466 SDL_Has3DNowExt(void) |
804
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*** empty log message ***
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467 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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468 if (SDL_GetCPUFeatures() & CPU_HAS_3DNOWEXT) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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469 return SDL_TRUE; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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470 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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471 return SDL_FALSE; |
804
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*** empty log message ***
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472 } |
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*** empty log message ***
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473 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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474 SDL_bool |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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475 SDL_HasSSE(void) |
739
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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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476 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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477 if (SDL_GetCPUFeatures() & CPU_HAS_SSE) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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478 return SDL_TRUE; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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479 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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480 return SDL_FALSE; |
739
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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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481 } |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff
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482 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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483 SDL_bool |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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484 SDL_HasSSE2(void) |
804
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*** empty log message ***
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parents:
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485 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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486 if (SDL_GetCPUFeatures() & CPU_HAS_SSE2) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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487 return SDL_TRUE; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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488 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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489 return SDL_FALSE; |
804
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*** empty log message ***
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490 } |
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*** empty log message ***
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491 |
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492 SDL_bool |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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493 SDL_HasAltiVec(void) |
778
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Date: Tue, 6 Jan 2004 12:42:19 +0100
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494 { |
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495 if (SDL_GetCPUFeatures() & CPU_HAS_ALTIVEC) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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496 return SDL_TRUE; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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497 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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498 return SDL_FALSE; |
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Date: Tue, 6 Jan 2004 12:42:19 +0100
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499 } |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
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500 |
739
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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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501 #ifdef TEST_MAIN |
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502 |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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503 #include <stdio.h> |
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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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504 |
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505 int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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506 main() |
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507 { |
3579
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Added SDL_GetCPUCount() to see how many cores are available.
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508 printf("CPU count: %d\n", SDL_GetCPUCount()); |
3427271a2d75
Added SDL_GetCPUCount() to see how many cores are available.
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509 printf("CPU name: %s\n", SDL_GetCPUType()); |
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510 printf("RDTSC: %d\n", SDL_HasRDTSC()); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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|
511 printf("MMX: %d\n", SDL_HasMMX()); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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512 printf("MMXExt: %d\n", SDL_HasMMXExt()); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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513 printf("3DNow: %d\n", SDL_Has3DNow()); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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514 printf("3DNowExt: %d\n", SDL_Has3DNowExt()); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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|
515 printf("SSE: %d\n", SDL_HasSSE()); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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|
516 printf("SSE2: %d\n", SDL_HasSSE2()); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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|
517 printf("AltiVec: %d\n", SDL_HasAltiVec()); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1864
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|
518 return 0; |
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
519 } |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
520 |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
521 #endif /* TEST_MAIN */ |
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|
522 |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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|
523 /* vi: set ts=4 sw=4 expandtab: */ |