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annotate src/cpuinfo/SDL_cpuinfo.c @ 3586:b6758aee0dd4

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Added support for querying the number of CPUs available on Linux. This also happens to work on Mac OS X.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 17 Dec 2009 03:04:04 +0000
parents 41d01d70659c
children 2080e8d75ac6
rev   line source
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
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1 /*
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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2 SDL - Simple DirectMedia Layer
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99210400e8b9 Updated copyright date
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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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
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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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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c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
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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
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
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16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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18
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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19 Sam Lantinga
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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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
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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24 /* CPU feature detection for SDL */
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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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_SYSCONF
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29 #include <unistd.h>
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30 #endif
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31 #ifdef HAVE_SYSCTLBYNAME
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32 #include <sys/types.h>
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33 #include <sys/sysctl.h>
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34 #endif
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35 #if defined(__MACOSX__) && (defined(__ppc__) || defined(__ppc64__))
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36 #include <sys/sysctl.h> /* For AltiVec check */
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37 #elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP
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38 #include <signal.h>
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39 #include <setjmp.h>
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40 #endif
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41 #ifdef __WIN32__
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42 #define WIN32_LEAN_AND_MEAN
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43 #include <windows.h>
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44 #endif
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45
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46 #define CPU_HAS_RDTSC 0x00000001
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47 #define CPU_HAS_MMX 0x00000002
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48 #define CPU_HAS_MMXEXT 0x00000004
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49 #define CPU_HAS_3DNOW 0x00000010
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50 #define CPU_HAS_3DNOWEXT 0x00000020
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51 #define CPU_HAS_SSE 0x00000040
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52 #define CPU_HAS_SSE2 0x00000080
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53 #define CPU_HAS_ALTIVEC 0x00000100
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54
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55 #if SDL_ALTIVEC_BLITTERS && HAVE_SETJMP && !__MACOSX__
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56 /* This is the brute force way of detecting instruction sets...
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57 the idea is borrowed from the libmpeg2 library - thanks!
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58 */
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59 static jmp_buf jmpbuf;
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60 static void
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61 illegal_instruction(int sig)
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62 {
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63 longjmp(jmpbuf, 1);
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64 }
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65 #endif /* HAVE_SETJMP */
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66
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67 static __inline__ int
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68 CPU_haveCPUID(void)
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69 {
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70 int has_CPUID = 0;
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71 /* *INDENT-OFF* */
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72 #if defined(__GNUC__) && defined(i386)
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73 __asm__ (
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74 " pushfl # Get original EFLAGS \n"
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75 " popl %%eax \n"
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76 " movl %%eax,%%ecx \n"
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77 " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n"
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78 " pushl %%eax # Save new EFLAGS value on stack \n"
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79 " popfl # Replace current EFLAGS value \n"
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80 " pushfl # Get new EFLAGS \n"
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81 " popl %%eax # Store new EFLAGS in EAX \n"
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82 " xorl %%ecx,%%eax # Can not toggle ID bit, \n"
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83 " jz 1f # Processor=80486 \n"
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84 " movl $1,%0 # We have CPUID support \n"
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85 "1: \n"
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86 : "=m" (has_CPUID)
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87 :
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88 : "%eax", "%ecx"
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89 );
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90 #elif defined(__GNUC__) && defined(__x86_64__)
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91 /* Technically, if this is being compiled under __x86_64__ then it has
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92 CPUid by definition. But it's nice to be able to prove it. :) */
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93 __asm__ (
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94 " pushfq # Get original EFLAGS \n"
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95 " popq %%rax \n"
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96 " movq %%rax,%%rcx \n"
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97 " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n"
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98 " pushq %%rax # Save new EFLAGS value on stack \n"
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99 " popfq # Replace current EFLAGS value \n"
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100 " pushfq # Get new EFLAGS \n"
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101 " popq %%rax # Store new EFLAGS in EAX \n"
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102 " xorl %%ecx,%%eax # Can not toggle ID bit, \n"
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103 " jz 1f # Processor=80486 \n"
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104 " movl $1,%0 # We have CPUID support \n"
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105 "1: \n"
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106 : "=m" (has_CPUID)
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107 :
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108 : "%rax", "%rcx"
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109 );
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110 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
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111 __asm {
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112 pushfd ; Get original EFLAGS
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113 pop eax
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114 mov ecx, eax
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115 xor eax, 200000h ; Flip ID bit in EFLAGS
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116 push eax ; Save new EFLAGS value on stack
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117 popfd ; Replace current EFLAGS value
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118 pushfd ; Get new EFLAGS
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119 pop eax ; Store new EFLAGS in EAX
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120 xor eax, ecx ; Can not toggle ID bit,
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121 jz done ; Processor=80486
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122 mov has_CPUID,1 ; We have CPUID support
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123 done:
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124 }
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125 #elif defined(__sun) && defined(__i386)
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126 __asm (
1229
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127 " pushfl \n"
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128 " popl %eax \n"
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129 " movl %eax,%ecx \n"
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130 " xorl $0x200000,%eax \n"
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131 " pushl %eax \n"
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132 " popfl \n"
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133 " pushfl \n"
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134 " popl %eax \n"
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135 " xorl %ecx,%eax \n"
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136 " jz 1f \n"
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137 " movl $1,-8(%ebp) \n"
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138 "1: \n"
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139 );
1229
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140 #elif defined(__sun) && defined(__amd64)
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141 __asm (
1229
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diff changeset
142 " pushfq \n"
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
143 " popq %rax \n"
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
144 " movq %rax,%rcx \n"
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Ryan C. Gordon <icculus@icculus.org>
parents: 1198
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145 " xorl $0x200000,%eax \n"
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Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
146 " pushq %rax \n"
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Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
147 " popfq \n"
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Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
148 " pushfq \n"
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Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
149 " popq %rax \n"
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Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
150 " xorl %ecx,%eax \n"
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
151 " jz 1f \n"
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Ryan C. Gordon <icculus@icculus.org>
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152 " movl $1,-8(%rbp) \n"
1430f5fe092a Patch from Michael Bonfils to add CPUID support for x86 Solaris.
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153 "1: \n"
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154 );
745
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155 #endif
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156 /* *INDENT-ON* */
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157 return has_CPUID;
745
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158 }
739
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parents:
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159
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160 #if defined(__GNUC__) && (defined(i386) || defined(__x86_64__))
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161 #define cpuid(func, a, b, c, d) \
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162 __asm__ __volatile__ ( \
41d01d70659c Fixed cpuid assembly to work on PIC code
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163 " pushl %%ebx \n" \
41d01d70659c Fixed cpuid assembly to work on PIC code
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164 " cpuid \n" \
41d01d70659c Fixed cpuid assembly to work on PIC code
Sam Lantinga <slouken@libsdl.org>
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diff changeset
165 " movl %%ebx, %%esi \n" \
41d01d70659c Fixed cpuid assembly to work on PIC code
Sam Lantinga <slouken@libsdl.org>
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diff changeset
166 " popl %%ebx \n" : \
41d01d70659c Fixed cpuid assembly to work on PIC code
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167 "=a" (a), "=S" (b), "=c" (c), "=d" (d) : "a" (func))
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168 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
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169 #define cpuid(func, a, b, c, d) \
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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170 __asm { \
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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171 __asm mov eax, func \
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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172 __asm cpuid \
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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diff changeset
173 __asm mov a, eax \
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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diff changeset
174 __asm mov b, ebx \
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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175 __asm mov c, ecx \
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176 __asm mov d, edx \
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177 }
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178 #else
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179 #define cpuid(func, a, b, c, d) \
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180 a = b = c = d = 0
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181 #endif
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182
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183 static __inline__ int
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184 CPU_getCPUIDFeatures(void)
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185 {
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186 int features = 0;
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187 int a, b, c, d;
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188
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189 cpuid(0, a, b, c, d);
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diff changeset
190 if (a >= 1) {
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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191 cpuid(1, a, b, c, d);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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192 features = d;
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193 }
1895
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194 return features;
745
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195 }
71ee03909f42 Greatly simplified the SDL CPU info code
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196
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197 static __inline__ int
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198 CPU_getCPUIDFeaturesExt(void)
785
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Sam Lantinga <slouken@libsdl.org>
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199 {
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200 int features = 0;
3580
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diff changeset
201 int a, b, c, d;
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diff changeset
202
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diff changeset
203 cpuid(0x80000000, a, b, c, d);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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diff changeset
204 if (a >= 0x80000001) {
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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205 cpuid(0x80000001, a, b, c, d);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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206 features = d;
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207 }
1895
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208 return features;
785
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209 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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210
1895
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211 static __inline__ int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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212 CPU_haveRDTSC(void)
745
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213 {
1895
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214 if (CPU_haveCPUID()) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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215 return (CPU_getCPUIDFeatures() & 0x00000010);
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216 }
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diff changeset
217 return 0;
745
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diff changeset
218 }
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
219
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220 static __inline__ int
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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221 CPU_haveMMX(void)
745
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diff changeset
222 {
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diff changeset
223 if (CPU_haveCPUID()) {
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diff changeset
224 return (CPU_getCPUIDFeatures() & 0x00800000);
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225 }
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226 return 0;
745
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227 }
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
228
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229 static __inline__ int
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diff changeset
230 CPU_haveMMXExt(void)
785
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diff changeset
231 {
1895
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diff changeset
232 if (CPU_haveCPUID()) {
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233 return (CPU_getCPUIDFeaturesExt() & 0x00400000);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
234 }
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diff changeset
235 return 0;
785
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diff changeset
236 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
237
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diff changeset
238 static __inline__ int
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239 CPU_have3DNow(void)
745
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diff changeset
240 {
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diff changeset
241 if (CPU_haveCPUID()) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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242 return (CPU_getCPUIDFeaturesExt() & 0x80000000);
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diff changeset
243 }
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diff changeset
244 return 0;
785
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diff changeset
245 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
246
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diff changeset
247 static __inline__ int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
248 CPU_have3DNowExt(void)
785
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diff changeset
249 {
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diff changeset
250 if (CPU_haveCPUID()) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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251 return (CPU_getCPUIDFeaturesExt() & 0x40000000);
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diff changeset
252 }
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253 return 0;
745
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diff changeset
254 }
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
255
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diff changeset
256 static __inline__ int
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diff changeset
257 CPU_haveSSE(void)
745
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diff changeset
258 {
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diff changeset
259 if (CPU_haveCPUID()) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
260 return (CPU_getCPUIDFeatures() & 0x02000000);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
261 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
262 return 0;
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
263 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
264
1895
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diff changeset
265 static __inline__ int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
266 CPU_haveSSE2(void)
778
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diff changeset
267 {
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diff changeset
268 if (CPU_haveCPUID()) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
269 return (CPU_getCPUIDFeatures() & 0x04000000);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
270 }
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diff changeset
271 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
272 }
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diff changeset
273
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1864
diff changeset
274 static __inline__ int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
275 CPU_haveAltiVec(void)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
276 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
277 volatile int altivec = 0;
3248
cde30895105d Added 64-bit architectures to the fat build script
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
278 #if defined(__MACOSX__) && (defined(__ppc__) || defined(__ppc64__))
1895
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diff changeset
279 int selectors[2] = { CTL_HW, HW_VECTORUNIT };
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
280 int hasVectorUnit = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1864
diff changeset
281 size_t length = sizeof(hasVectorUnit);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1864
diff changeset
282 int error = sysctl(selectors, 2, &hasVectorUnit, &length, NULL, 0);
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
283 if (0 == error)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1864
diff changeset
284 altivec = (hasVectorUnit != 0);
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
285 #elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP
1895
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diff changeset
286 void (*handler) (int sig);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1864
diff changeset
287 handler = signal(SIGILL, illegal_instruction);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1864
diff changeset
288 if (setjmp(jmpbuf) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1864
diff changeset
289 asm volatile ("mtspr 256, %0\n\t" "vand %%v0, %%v0, %%v0"::"r" (-1));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
290 altivec = 1;
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
291 }
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
292 signal(SIGILL, handler);
778
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parents: 769
diff changeset
293 #endif
1895
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parents: 1864
diff changeset
294 return altivec;
778
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
295 }
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
296
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
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diff changeset
297 static int SDL_CPUCount = 0;
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
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diff changeset
298
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
299 int
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
300 SDL_GetCPUCount()
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
301 {
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
302 if (!SDL_CPUCount) {
3586
b6758aee0dd4 Added support for querying the number of CPUs available on Linux. This also happens to work on Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 3584
diff changeset
303 #ifdef HAVE_SYSCONF
b6758aee0dd4 Added support for querying the number of CPUs available on Linux. This also happens to work on Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 3584
diff changeset
304 if (SDL_CPUCount <= 0) {
b6758aee0dd4 Added support for querying the number of CPUs available on Linux. This also happens to work on Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 3584
diff changeset
305 SDL_CPUCount = (int)sysconf(_SC_NPROCESSORS_ONLN);
b6758aee0dd4 Added support for querying the number of CPUs available on Linux. This also happens to work on Mac OS X.
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parents: 3584
diff changeset
306 }
b6758aee0dd4 Added support for querying the number of CPUs available on Linux. This also happens to work on Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 3584
diff changeset
307 #endif
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
308 #ifdef HAVE_SYSCTLBYNAME
3586
b6758aee0dd4 Added support for querying the number of CPUs available on Linux. This also happens to work on Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 3584
diff changeset
309 if (SDL_CPUCount <= 0) {
3580
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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parents: 3579
diff changeset
310 size_t size = sizeof(SDL_CPUCount);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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parents: 3579
diff changeset
311 sysctlbyname("hw.ncpu", &SDL_CPUCount, &size, NULL, 0);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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parents: 3579
diff changeset
312 }
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
313 #endif
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
314 #ifdef __WIN32__
3586
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parents: 3584
diff changeset
315 if (SDL_CPUCount <= 0) {
3580
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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parents: 3579
diff changeset
316 SYSTEM_INFO info;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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parents: 3579
diff changeset
317 GetSystemInfo(&info);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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diff changeset
318 SDL_CPUCount = info.dwNumberOfProcessors;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
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diff changeset
319 }
3579
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diff changeset
320 #endif
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
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parents: 3515
diff changeset
321 /* There has to be at least 1, right? :) */
3586
b6758aee0dd4 Added support for querying the number of CPUs available on Linux. This also happens to work on Mac OS X.
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diff changeset
322 if (SDL_CPUCount <= 0) {
3579
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parents: 3515
diff changeset
323 SDL_CPUCount = 1;
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
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parents: 3515
diff changeset
324 }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
325 }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
326 return SDL_CPUCount;
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
327 }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
328
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
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parents: 3515
diff changeset
329 /* Oh, such a sweet sweet trick, just not very useful. :) */
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
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parents: 3515
diff changeset
330 const char *
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
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parents: 3515
diff changeset
331 SDL_GetCPUType()
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
332 {
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
333 static char SDL_CPUType[48];
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
334
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
335 if (!SDL_CPUType[0]) {
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
336 int i = 0;
3580
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
337 int a, b, c, d;
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
338
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
339 if (CPU_haveCPUID()) {
3580
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
340 cpuid(0x80000000, a, b, c, d);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
341 if (a >= 0x80000004) {
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
342 cpuid(0x80000002, a, b, c, d);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
343 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
344 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
345 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
346 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
347 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
348 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
349 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
350 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
351 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
352 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
353 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
354 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
355 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
356 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
357 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
358 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
359 cpuid(0x80000003, a, b, c, d);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
360 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
361 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
362 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
363 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
364 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
365 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
366 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
367 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
368 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
369 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
370 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
371 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
372 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
373 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
374 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
375 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
376 cpuid(0x80000004, a, b, c, d);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
377 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
378 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
379 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
380 SDL_CPUType[i++] = (char)(a & 0xff); a >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
381 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
382 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
383 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
384 SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
385 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
386 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
387 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
388 SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
389 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
390 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
391 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
392 SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
393 }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
394 }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
395 if (!SDL_CPUType[0]) {
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
396 SDL_strlcpy(SDL_CPUType, "Unknown", sizeof(SDL_CPUType));
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
397 }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
398 }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
399 return SDL_CPUType;
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
400 }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
401
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
402 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
403
1895
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 static Uint32
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_GetCPUFeatures(void)
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
406 {
1895
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
407 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: 1864
diff changeset
408 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: 1864
diff changeset
409 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
410 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
411 }
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 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
413 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: 1864
diff changeset
414 }
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 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: 1864
diff changeset
416 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: 1864
diff changeset
417 }
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
418 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
419 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
420 }
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
421 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
422 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
423 }
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 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: 1864
diff changeset
425 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: 1864
diff changeset
426 }
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
427 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: 1864
diff changeset
428 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: 1864
diff changeset
429 }
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
430 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
431 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
432 }
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 }
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 return SDL_CPUFeatures;
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
435 }
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
436
1895
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 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
438 SDL_HasRDTSC(void)
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
439 {
1895
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 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
441 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
442 }
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
443 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
444 }
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
445
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
446 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
447 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
448 {
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
449 if (SDL_GetCPUFeatures() & 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: 1864
diff changeset
450 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
451 }
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
452 return SDL_FALSE;
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
453 }
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
454
1895
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
455 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
456 SDL_HasMMXExt(void)
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
457 {
1895
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
458 if (SDL_GetCPUFeatures() & 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: 1864
diff changeset
459 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
460 }
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
461 return SDL_FALSE;
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
462 }
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
463
1895
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
464 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
465 SDL_Has3DNow(void)
804
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
466 {
1895
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
467 if (SDL_GetCPUFeatures() & 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
468 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
469 }
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
470 return SDL_FALSE;
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
471 }
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
472
1895
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
473 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
474 SDL_Has3DNowExt(void)
804
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
475 {
1895
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
476 if (SDL_GetCPUFeatures() & 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
477 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
478 }
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
479 return SDL_FALSE;
804
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
480 }
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
481
1895
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
482 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
483 SDL_HasSSE(void)
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
484 {
1895
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
485 if (SDL_GetCPUFeatures() & 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: 1864
diff changeset
486 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
487 }
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
488 return SDL_FALSE;
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
489 }
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
490
1895
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
491 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
492 SDL_HasSSE2(void)
804
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
493 {
1895
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
494 if (SDL_GetCPUFeatures() & 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: 1864
diff changeset
495 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
496 }
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
497 return SDL_FALSE;
804
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
498 }
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
499
1895
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
500 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
501 SDL_HasAltiVec(void)
778
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
502 {
1895
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
503 if (SDL_GetCPUFeatures() & 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
504 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
505 }
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
506 return SDL_FALSE;
778
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
507 }
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
508
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
509 #ifdef TEST_MAIN
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
510
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
511 #include <stdio.h>
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
512
1895
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
513 int
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
514 main()
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
515 {
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
516 printf("CPU count: %d\n", SDL_GetCPUCount());
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
517 printf("CPU name: %s\n", SDL_GetCPUType());
1895
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
518 printf("RDTSC: %d\n", SDL_HasRDTSC());
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
519 printf("MMX: %d\n", SDL_HasMMX());
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
520 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: 1864
diff changeset
521 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: 1864
diff changeset
522 printf("3DNowExt: %d\n", SDL_Has3DNowExt());
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
523 printf("SSE: %d\n", SDL_HasSSE());
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
524 printf("SSE2: %d\n", SDL_HasSSE2());
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
525 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
diff changeset
526 return 0;
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
527 }
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
528
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
529 #endif /* TEST_MAIN */
1895
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
530
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
531 /* vi: set ts=4 sw=4 expandtab: */