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annotate src/cpuinfo/SDL_cpuinfo.c @ 787:07760c8854d1

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Date: Sat, 24 Jan 2004 14:49:58 +0100 From: Stephane Marchesin Subject: Re: [SDL] 3DNow! detection on a P4 system Well... I found another bug : 3dnow was detected on P2/P3 cpus. So I took one more look at the code and found a mistake in CPU_getCPUIDFeaturesExt : The condition for having extended cpuinfo is that when we query extended cpuinfo we get a result >= 0x80000001. So we must exit if eax < 0x80000001. The attached patch does that.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 24 Jan 2004 15:55:00 +0000
parents e1e0a0a94570
children c20f08c4f437
rev   line source
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22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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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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b8d311d90021 Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 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
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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8 version 2 of the License, or (at your option) any later version.
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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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
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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13 Library General Public License for more details.
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14
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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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
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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21 */
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22
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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28 /* CPU feature detection for SDL */
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29
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30 #include "SDL.h"
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31 #include "SDL_cpuinfo.h"
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32
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8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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33 #ifdef MACOSX
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34 #include <sys/sysctl.h> /* For AltiVec check */
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35 #endif
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36
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37 #define CPU_HAS_RDTSC 0x00000001
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38 #define CPU_HAS_MMX 0x00000002
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39 #define CPU_HAS_MMXEXT 0x00000004
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40 #define CPU_HAS_3DNOW 0x00000010
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41 #define CPU_HAS_3DNOWEXT 0x00000020
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42 #define CPU_HAS_SSE 0x00000040
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43 #define CPU_HAS_SSE2 0x00000080
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44 #define CPU_HAS_ALTIVEC 0x00000100
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45
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46 static __inline__ int CPU_haveCPUID()
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47 {
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48 int has_CPUID = 0;
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49 #if defined(__GNUC__) && defined(i386)
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50 __asm__ (
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51 " pushfl # Get original EFLAGS \n"
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52 " popl %%eax \n"
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53 " movl %%eax,%%ecx \n"
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54 " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n"
71ee03909f42 Greatly simplified the SDL CPU info code
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55 " pushl %%eax # Save new EFLAGS value on stack \n"
71ee03909f42 Greatly simplified the SDL CPU info code
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56 " popfl # Replace current EFLAGS value \n"
71ee03909f42 Greatly simplified the SDL CPU info code
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57 " pushfl # Get new EFLAGS \n"
71ee03909f42 Greatly simplified the SDL CPU info code
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58 " popl %%eax # Store new EFLAGS in EAX \n"
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59 " xorl %%ecx,%%eax # Can not toggle ID bit, \n"
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60 " jz 1f # Processor=80486 \n"
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61 " movl $1,%0 # We have CPUID support \n"
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62 "1: \n"
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a2dde6aff60e *** empty log message ***
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63 : "=m" (has_CPUID)
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64 :
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65 : "%eax", "%ecx"
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66 );
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67 #elif defined(_MSC_VER)
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68 __asm {
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69 pushfd ; Get original EFLAGS
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70 pop eax
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71 mov ecx, eax
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72 xor eax, 200000h ; Flip ID bit in EFLAGS
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73 push eax ; Save new EFLAGS value on stack
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74 popfd ; Replace current EFLAGS value
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75 pushfd ; Get new EFLAGS
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76 pop eax ; Store new EFLAGS in EAX
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77 xor eax, ecx ; Can not toggle ID bit,
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78 jz done ; Processor=80486
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79 mov has_CPUID,1 ; We have CPUID support
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80 done:
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81 }
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82 #endif
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83 return has_CPUID;
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84 }
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85
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86 static __inline__ int CPU_getCPUIDFeatures()
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87 {
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88 int features = 0;
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89 #if defined(__GNUC__) && defined(i386)
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90 __asm__ (
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91 " movl %%ebx,%%edi\n"
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92 " xorl %%eax,%%eax # Set up for CPUID instruction \n"
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93 " cpuid # Get and save vendor ID \n"
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94 " cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n"
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95 " jl 1f # We dont have the CPUID instruction\n"
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96 " xorl %%eax,%%eax \n"
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97 " incl %%eax \n"
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98 " cpuid # Get family/model/stepping/features\n"
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99 " movl %%edx,%0 \n"
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100 "1: \n"
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101 " movl %%edi,%%ebx\n"
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102 : "=m" (features)
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103 :
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104 : "%eax", "%ebx", "%ecx", "%edx", "%edi"
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105 );
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106 #elif defined(_MSC_VER)
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107 __asm {
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108 xor eax, eax ; Set up for CPUID instruction
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109 cpuid ; Get and save vendor ID
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110 cmp eax, 1 ; Make sure 1 is valid input for CPUID
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111 jl done ; We dont have the CPUID instruction
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112 xor eax, eax
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113 inc eax
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114 cpuid ; Get family/model/stepping/features
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115 mov features, edx
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116 done:
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117 }
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118 #endif
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119 return features;
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120 }
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121
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122 static __inline__ int CPU_getCPUIDFeaturesExt()
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123 {
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124 int features = 0;
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125 #if defined(__GNUC__) && defined(i386)
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126 __asm__ (
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127 " movl %%ebx,%%edi\n"
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128 " movl $0x80000000,%%eax # Query for extended functions \n"
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129 " cpuid # Get extended function limit \n"
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130 " cmpl $0x80000001,%%eax \n"
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131 " jl 1f # Nope, we dont have function 800000001h\n"
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132 " movl $0x80000001,%%eax # Setup extended function 800000001h\n"
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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133 " cpuid # and get the information \n"
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
134 " movl %%edx,%0 \n"
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
135 "1: \n"
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
136 " movl %%edi,%%ebx\n"
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
137 : "=m" (features)
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
138 :
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
139 : "%eax", "%ebx", "%ecx", "%edx", "%edi"
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
140 );
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
141 #elif defined(_MSC_VER)
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
142 __asm {
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
143 mov eax,80000000h ; Query for extended functions
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
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diff changeset
144 cpuid ; Get extended function limit
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
145 cmp eax,80000001h
787
07760c8854d1 Date: Sat, 24 Jan 2004 14:49:58 +0100
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diff changeset
146 jl done ; Nope, we dont have function 800000001h
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
147 mov eax,80000001h ; Setup extended function 800000001h
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
148 cpuid ; and get the information
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diff changeset
149 mov features,edx
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diff changeset
150 done:
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
151 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
152 #endif
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diff changeset
153 return features;
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diff changeset
154 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
155
745
71ee03909f42 Greatly simplified the SDL CPU info code
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156 static __inline__ int CPU_haveRDTSC()
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157 {
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
158 if ( CPU_haveCPUID() ) {
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159 return (CPU_getCPUIDFeatures() & 0x00000010);
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160 }
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161 return 0;
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
162 }
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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163
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164 static __inline__ int CPU_haveMMX()
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165 {
71ee03909f42 Greatly simplified the SDL CPU info code
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166 if ( CPU_haveCPUID() ) {
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167 return (CPU_getCPUIDFeatures() & 0x00800000);
71ee03909f42 Greatly simplified the SDL CPU info code
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168 }
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169 return 0;
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170 }
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171
785
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172 static __inline__ int CPU_haveMMXExt()
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173 {
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174 if ( CPU_haveCPUID() ) {
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175 return (CPU_getCPUIDFeaturesExt() & 0x00400000);
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176 }
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177 return 0;
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178 }
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179
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180 static __inline__ int CPU_have3DNow()
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181 {
785
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182 if ( CPU_haveCPUID() ) {
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183 return (CPU_getCPUIDFeaturesExt() & 0x80000000);
747
da36f59485da Check for CPUID before checking for 3DNow!
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diff changeset
184 }
785
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185 return 0;
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186 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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187
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diff changeset
188 static __inline__ int CPU_have3DNowExt()
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189 {
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190 if ( CPU_haveCPUID() ) {
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191 return (CPU_getCPUIDFeaturesExt() & 0x40000000);
745
71ee03909f42 Greatly simplified the SDL CPU info code
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192 }
785
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193 return 0;
745
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194 }
71ee03909f42 Greatly simplified the SDL CPU info code
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195
71ee03909f42 Greatly simplified the SDL CPU info code
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196 static __inline__ int CPU_haveSSE()
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197 {
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198 if ( CPU_haveCPUID() ) {
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199 return (CPU_getCPUIDFeatures() & 0x02000000);
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200 }
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201 return 0;
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diff changeset
202 }
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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203
785
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204 static __inline__ int CPU_haveSSE2()
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diff changeset
205 {
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diff changeset
206 if ( CPU_haveCPUID() ) {
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207 return (CPU_getCPUIDFeatures() & 0x04000000);
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208 }
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diff changeset
209 return 0;
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210 }
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diff changeset
211
778
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212 static __inline__ int CPU_haveAltiVec()
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diff changeset
213 {
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
214 #ifdef MACOSX
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
215 /* TODO: This check works on OS X. It would be nice to detect AltiVec
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
216 properly on for example Linux/PPC, too. But I don't know how that
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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parents: 769
diff changeset
217 is done in Linux (or FreeBSD, or whatever other OS you run PPC :-)
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
218 */
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
219 int selectors[2] = { CTL_HW, HW_VECTORUNIT };
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
220 int hasVectorUnit = 0;
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
221 size_t length = sizeof(hasVectorUnit);
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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parents: 769
diff changeset
222 int error = sysctl(selectors, 2, &hasVectorUnit, &length, NULL, 0);
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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parents: 769
diff changeset
223 if( 0 == error )
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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parents: 769
diff changeset
224 return hasVectorUnit != 0;
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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parents: 769
diff changeset
225 #endif
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
226 return 0;
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
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diff changeset
227 }
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
228
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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diff changeset
229 static Uint32 SDL_CPUFeatures = 0xFFFFFFFF;
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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diff changeset
230
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
231 static Uint32 SDL_GetCPUFeatures()
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
232 {
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
233 if ( SDL_CPUFeatures == 0xFFFFFFFF ) {
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
234 SDL_CPUFeatures = 0;
745
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diff changeset
235 if ( CPU_haveRDTSC() ) {
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
236 SDL_CPUFeatures |= CPU_HAS_RDTSC;
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
237 }
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
238 if ( CPU_haveMMX() ) {
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
239 SDL_CPUFeatures |= CPU_HAS_MMX;
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
240 }
786
e1e0a0a94570 *** empty log message ***
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diff changeset
241 if ( CPU_haveMMXExt() ) {
e1e0a0a94570 *** empty log message ***
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diff changeset
242 SDL_CPUFeatures |= CPU_HAS_MMXEXT;
e1e0a0a94570 *** empty log message ***
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diff changeset
243 }
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
244 if ( CPU_have3DNow() ) {
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
245 SDL_CPUFeatures |= CPU_HAS_3DNOW;
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
246 }
786
e1e0a0a94570 *** empty log message ***
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diff changeset
247 if ( CPU_have3DNowExt() ) {
e1e0a0a94570 *** empty log message ***
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diff changeset
248 SDL_CPUFeatures |= CPU_HAS_3DNOWEXT;
e1e0a0a94570 *** empty log message ***
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diff changeset
249 }
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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diff changeset
250 if ( CPU_haveSSE() ) {
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
251 SDL_CPUFeatures |= CPU_HAS_SSE;
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
252 }
786
e1e0a0a94570 *** empty log message ***
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diff changeset
253 if ( CPU_haveSSE2() ) {
e1e0a0a94570 *** empty log message ***
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diff changeset
254 SDL_CPUFeatures |= CPU_HAS_SSE2;
e1e0a0a94570 *** empty log message ***
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diff changeset
255 }
778
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
256 if ( CPU_haveAltiVec() ) {
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
257 SDL_CPUFeatures |= CPU_HAS_ALTIVEC;
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diff changeset
258 }
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
259 }
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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diff changeset
260 return SDL_CPUFeatures;
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
261 }
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
262
745
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diff changeset
263 SDL_bool SDL_HasRDTSC()
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
264 {
71ee03909f42 Greatly simplified the SDL CPU info code
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parents: 739
diff changeset
265 if ( SDL_GetCPUFeatures() & CPU_HAS_RDTSC ) {
71ee03909f42 Greatly simplified the SDL CPU info code
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parents: 739
diff changeset
266 return SDL_TRUE;
71ee03909f42 Greatly simplified the SDL CPU info code
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parents: 739
diff changeset
267 }
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
268 return SDL_FALSE;
71ee03909f42 Greatly simplified the SDL CPU info code
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parents: 739
diff changeset
269 }
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
270
739
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271 SDL_bool SDL_HasMMX()
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272 {
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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273 if ( SDL_GetCPUFeatures() & CPU_HAS_MMX ) {
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274 return SDL_TRUE;
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275 }
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276 return SDL_FALSE;
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277 }
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278
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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279 SDL_bool SDL_Has3DNow()
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280 {
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281 if ( SDL_GetCPUFeatures() & CPU_HAS_3DNOW ) {
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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282 return SDL_TRUE;
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283 }
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284 return SDL_FALSE;
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285 }
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286
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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287 SDL_bool SDL_HasSSE()
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288 {
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289 if ( SDL_GetCPUFeatures() & CPU_HAS_SSE ) {
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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290 return SDL_TRUE;
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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291 }
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292 return SDL_FALSE;
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293 }
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294
778
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295 SDL_bool SDL_HasAltiVec()
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296 {
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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297 if ( SDL_GetCPUFeatures() & CPU_HAS_ALTIVEC ) {
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298 return SDL_TRUE;
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299 }
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300 return SDL_FALSE;
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diff changeset
301 }
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302
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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303 SDL_bool SDL_HasMMXExt()
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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304 {
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
305 if ( SDL_GetCPUFeatures() & CPU_HAS_MMXEXT ) {
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
306 return SDL_TRUE;
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
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diff changeset
307 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
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diff changeset
308 return SDL_FALSE;
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
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diff changeset
309 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
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diff changeset
310
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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parents: 784
diff changeset
311 SDL_bool SDL_Has3DNowExt()
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
312 {
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
313 if ( SDL_GetCPUFeatures() & CPU_HAS_3DNOWEXT ) {
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
314 return SDL_TRUE;
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
315 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
316 return SDL_FALSE;
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
317 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
318
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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parents: 784
diff changeset
319 SDL_bool SDL_HasSSE2()
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
320 {
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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parents: 784
diff changeset
321 if ( SDL_GetCPUFeatures() & CPU_HAS_SSE2 ) {
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
322 return SDL_TRUE;
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
323 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
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diff changeset
324 return SDL_FALSE;
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
325 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
326
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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diff changeset
327 #ifdef TEST_MAIN
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
diff changeset
328
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
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diff changeset
329 #include <stdio.h>
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
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diff changeset
330
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
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diff changeset
331 int main()
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
332 {
778
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
333 printf("RDTSC: %d\n", SDL_HasRDTSC());
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
334 printf("MMX: %d\n", SDL_HasMMX());
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
335 printf("MMXExt: %d\n", SDL_HasMMXExt());
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
336 printf("3DNow: %d\n", SDL_Has3DNow());
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
337 printf("3DNowExt: %d\n", SDL_Has3DNowExt());
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
338 printf("SSE: %d\n", SDL_HasSSE());
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
339 printf("SSE2: %d\n", SDL_HasSSE2());
778
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Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
340 printf("AltiVec: %d\n", SDL_HasAltiVec());
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
341 return 0;
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
342 }
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
343
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
344 #endif /* TEST_MAIN */