author | Sam Lantinga <slouken@libsdl.org> |
Tue, 10 Feb 2004 15:31:35 +0000 | |
changeset 804 | b2fda076b02e |
parent 796 | dec19b813b04 |
child 881 | 9eb85a211abd |
permissions | -rw-r--r-- |
739
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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Updated copyright information for 2004 (Happy New Year!)
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3 |
Copyright (C) 1997-2004 Sam Lantinga |
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22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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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
Sam Lantinga <slouken@libsdl.org>
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|
6 |
modify it under the terms of the GNU Library General Public |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
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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
Sam Lantinga <slouken@libsdl.org>
parents:
diff
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9 |
|
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
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|
10 |
This library is distributed in the hope that it will be useful, |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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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
Sam Lantinga <slouken@libsdl.org>
parents:
diff
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|
13 |
Library General Public License for more details. |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
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14 |
|
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
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|
15 |
You should have received a copy of the GNU Library General Public |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
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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 |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
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18 |
|
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
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19 |
Sam Lantinga |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
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20 |
slouken@libsdl.org |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
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21 |
*/ |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
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22 |
|
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
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23 |
#ifdef SAVE_RCSID |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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24 |
static char rcsid = |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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25 |
"@(#) $Id$"; |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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26 |
#endif |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
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27 |
|
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
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28 |
/* CPU feature detection for SDL */ |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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29 |
|
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Altivec detection on non-MacOS X systems
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#ifdef unix /* FIXME: Better setjmp detection? */ |
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#define USE_SETJMP |
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#include <signal.h> |
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#include <setjmp.h> |
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34 |
#endif |
c20f08c4f437
Altivec detection on non-MacOS X systems
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35 |
|
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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36 |
#include "SDL.h" |
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Greatly simplified the SDL CPU info code
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#include "SDL_cpuinfo.h" |
71ee03909f42
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8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
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#ifdef MACOSX |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
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#include <sys/sysctl.h> /* For AltiVec check */ |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
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41 |
#endif |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
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Greatly simplified the SDL CPU info code
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#define CPU_HAS_RDTSC 0x00000001 |
71ee03909f42
Greatly simplified the SDL CPU info code
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44 |
#define CPU_HAS_MMX 0x00000002 |
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
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45 |
#define CPU_HAS_MMXEXT 0x00000004 |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
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46 |
#define CPU_HAS_3DNOW 0x00000010 |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
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47 |
#define CPU_HAS_3DNOWEXT 0x00000020 |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
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48 |
#define CPU_HAS_SSE 0x00000040 |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
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49 |
#define CPU_HAS_SSE2 0x00000080 |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
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50 |
#define CPU_HAS_ALTIVEC 0x00000100 |
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Altivec detection on non-MacOS X systems
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#ifdef USE_SETJMP |
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/* This is the brute force way of detecting instruction sets... |
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the idea is borrowed from the libmpeg2 library - thanks! |
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*/ |
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static jmp_buf jmpbuf; |
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static void illegal_instruction(int sig) |
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{ |
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59 |
longjmp(jmpbuf, 1); |
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} |
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#endif // USE_SETJMP |
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static __inline__ int CPU_haveCPUID() |
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Greatly simplified the SDL CPU info code
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{ |
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int has_CPUID = 0; |
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#if defined(__GNUC__) && defined(i386) |
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__asm__ ( |
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Greatly simplified the SDL CPU info code
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68 |
" pushfl # Get original EFLAGS \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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69 |
" popl %%eax \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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70 |
" movl %%eax,%%ecx \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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71 |
" xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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72 |
" pushl %%eax # Save new EFLAGS value on stack \n" |
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Greatly simplified the SDL CPU info code
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" popfl # Replace current EFLAGS value \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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74 |
" pushfl # Get new EFLAGS \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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75 |
" popl %%eax # Store new EFLAGS in EAX \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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76 |
" xorl %%ecx,%%eax # Can not toggle ID bit, \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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77 |
" jz 1f # Processor=80486 \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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78 |
" movl $1,%0 # We have CPUID support \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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79 |
"1: \n" |
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a2dde6aff60e
*** empty log message ***
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80 |
: "=m" (has_CPUID) |
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: |
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Greatly simplified the SDL CPU info code
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82 |
: "%eax", "%ecx" |
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Greatly simplified the SDL CPU info code
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83 |
); |
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84 |
#elif defined(_MSC_VER) |
749
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Updated Visual C++ support
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85 |
__asm { |
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Greatly simplified the SDL CPU info code
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86 |
pushfd ; Get original EFLAGS |
71ee03909f42
Greatly simplified the SDL CPU info code
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87 |
pop eax |
71ee03909f42
Greatly simplified the SDL CPU info code
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88 |
mov ecx, eax |
71ee03909f42
Greatly simplified the SDL CPU info code
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89 |
xor eax, 200000h ; Flip ID bit in EFLAGS |
71ee03909f42
Greatly simplified the SDL CPU info code
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90 |
push eax ; Save new EFLAGS value on stack |
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Greatly simplified the SDL CPU info code
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91 |
popfd ; Replace current EFLAGS value |
71ee03909f42
Greatly simplified the SDL CPU info code
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92 |
pushfd ; Get new EFLAGS |
71ee03909f42
Greatly simplified the SDL CPU info code
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|
93 |
pop eax ; Store new EFLAGS in EAX |
71ee03909f42
Greatly simplified the SDL CPU info code
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|
94 |
xor eax, ecx ; Can not toggle ID bit, |
71ee03909f42
Greatly simplified the SDL CPU info code
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95 |
jz done ; Processor=80486 |
71ee03909f42
Greatly simplified the SDL CPU info code
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|
96 |
mov has_CPUID,1 ; We have CPUID support |
71ee03909f42
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97 |
done: |
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98 |
} |
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99 |
#endif |
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Greatly simplified the SDL CPU info code
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100 |
return has_CPUID; |
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Greatly simplified the SDL CPU info code
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101 |
} |
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102 |
|
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103 |
static __inline__ int CPU_getCPUIDFeatures() |
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104 |
{ |
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105 |
int features = 0; |
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Greatly simplified the SDL CPU info code
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106 |
#if defined(__GNUC__) && defined(i386) |
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Greatly simplified the SDL CPU info code
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107 |
__asm__ ( |
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
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108 |
" movl %%ebx,%%edi\n" |
745
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Greatly simplified the SDL CPU info code
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109 |
" xorl %%eax,%%eax # Set up for CPUID instruction \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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110 |
" cpuid # Get and save vendor ID \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
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|
111 |
" cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n" |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
112 |
" jl 1f # We dont have the CPUID instruction\n" |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
113 |
" xorl %%eax,%%eax \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
114 |
" incl %%eax \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
115 |
" cpuid # Get family/model/stepping/features\n" |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
116 |
" movl %%edx,%0 \n" |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
117 |
"1: \n" |
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
118 |
" movl %%edi,%%ebx\n" |
784
a2dde6aff60e
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
778
diff
changeset
|
119 |
: "=m" (features) |
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
120 |
: |
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
121 |
: "%eax", "%ebx", "%ecx", "%edx", "%edi" |
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
122 |
); |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
123 |
#elif defined(_MSC_VER) |
749
06cdd106d61c
Updated Visual C++ support
Sam Lantinga <slouken@libsdl.org>
parents:
747
diff
changeset
|
124 |
__asm { |
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
125 |
xor eax, eax ; Set up for CPUID instruction |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
126 |
cpuid ; Get and save vendor ID |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
127 |
cmp eax, 1 ; Make sure 1 is valid input for CPUID |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
128 |
jl done ; We dont have the CPUID instruction |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
129 |
xor eax, eax |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
130 |
inc eax |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
131 |
cpuid ; Get family/model/stepping/features |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
132 |
mov features, edx |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
133 |
done: |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
134 |
} |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
135 |
#endif |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
136 |
return features; |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
137 |
} |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
138 |
|
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
139 |
static __inline__ int CPU_getCPUIDFeaturesExt() |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
140 |
{ |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
141 |
int features = 0; |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
142 |
#if defined(__GNUC__) && defined(i386) |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
143 |
__asm__ ( |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
144 |
" movl %%ebx,%%edi\n" |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
145 |
" movl $0x80000000,%%eax # Query for extended functions \n" |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
146 |
" cpuid # Get extended function limit \n" |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
147 |
" cmpl $0x80000001,%%eax \n" |
787
07760c8854d1
Date: Sat, 24 Jan 2004 14:49:58 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
786
diff
changeset
|
148 |
" jl 1f # Nope, we dont have function 800000001h\n" |
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
149 |
" movl $0x80000001,%%eax # Setup extended function 800000001h\n" |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
150 |
" cpuid # and get the information \n" |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
151 |
" movl %%edx,%0 \n" |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
152 |
"1: \n" |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
153 |
" movl %%edi,%%ebx\n" |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
154 |
: "=m" (features) |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
155 |
: |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
156 |
: "%eax", "%ebx", "%ecx", "%edx", "%edi" |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
157 |
); |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
158 |
#elif defined(_MSC_VER) |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
159 |
__asm { |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
160 |
mov eax,80000000h ; Query for extended functions |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
161 |
cpuid ; Get extended function limit |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
162 |
cmp eax,80000001h |
787
07760c8854d1
Date: Sat, 24 Jan 2004 14:49:58 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
786
diff
changeset
|
163 |
jl done ; Nope, we dont have function 800000001h |
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
164 |
mov eax,80000001h ; Setup extended function 800000001h |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
165 |
cpuid ; and get the information |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
166 |
mov features,edx |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
167 |
done: |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
168 |
} |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
169 |
#endif |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
170 |
return features; |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
171 |
} |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
172 |
|
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
173 |
static __inline__ int CPU_haveRDTSC() |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
174 |
{ |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
175 |
if ( CPU_haveCPUID() ) { |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
176 |
return (CPU_getCPUIDFeatures() & 0x00000010); |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
177 |
} |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
178 |
return 0; |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
179 |
} |
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
180 |
|
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
181 |
static __inline__ int CPU_haveMMX() |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
182 |
{ |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
183 |
if ( CPU_haveCPUID() ) { |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
184 |
return (CPU_getCPUIDFeatures() & 0x00800000); |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
185 |
} |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
186 |
return 0; |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
187 |
} |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
188 |
|
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
189 |
static __inline__ int CPU_haveMMXExt() |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
190 |
{ |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
191 |
if ( CPU_haveCPUID() ) { |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
192 |
return (CPU_getCPUIDFeaturesExt() & 0x00400000); |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
193 |
} |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
194 |
return 0; |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
195 |
} |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
196 |
|
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
197 |
static __inline__ int CPU_have3DNow() |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
198 |
{ |
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
199 |
if ( CPU_haveCPUID() ) { |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
200 |
return (CPU_getCPUIDFeaturesExt() & 0x80000000); |
747
da36f59485da
Check for CPUID before checking for 3DNow!
Sam Lantinga <slouken@libsdl.org>
parents:
745
diff
changeset
|
201 |
} |
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
202 |
return 0; |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
203 |
} |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
204 |
|
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
205 |
static __inline__ int CPU_have3DNowExt() |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
206 |
{ |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
207 |
if ( CPU_haveCPUID() ) { |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
208 |
return (CPU_getCPUIDFeaturesExt() & 0x40000000); |
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
209 |
} |
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
210 |
return 0; |
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
211 |
} |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
212 |
|
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
213 |
static __inline__ int CPU_haveSSE() |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
214 |
{ |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
215 |
if ( CPU_haveCPUID() ) { |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
216 |
return (CPU_getCPUIDFeatures() & 0x02000000); |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
217 |
} |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
218 |
return 0; |
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
219 |
} |
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
220 |
|
785
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
221 |
static __inline__ int CPU_haveSSE2() |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
222 |
{ |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
223 |
if ( CPU_haveCPUID() ) { |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
224 |
return (CPU_getCPUIDFeatures() & 0x04000000); |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
225 |
} |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
226 |
return 0; |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
227 |
} |
ca06a994f03c
Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents:
784
diff
changeset
|
228 |
|
778
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
229 |
static __inline__ int CPU_haveAltiVec() |
8ac3f46f9d09
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{ |
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volatile int altivec = 0; |
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#ifdef MACOSX |
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int selectors[2] = { CTL_HW, HW_VECTORUNIT }; |
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int hasVectorUnit = 0; |
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size_t length = sizeof(hasVectorUnit); |
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int error = sysctl(selectors, 2, &hasVectorUnit, &length, NULL, 0); |
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if( 0 == error ) |
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altivec = (hasVectorUnit != 0); |
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#elif defined(USE_SETJMP) && defined(GCC_ALTIVEC) |
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void (*handler)(int sig); |
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handler = signal(SIGILL, illegal_instruction); |
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if ( setjmp(jmpbuf) == 0 ) { |
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asm volatile ("mtspr 256, %0\n\t" |
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"vand %%v0, %%v0, %%v0" |
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: |
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: "r" (-1)); |
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altivec = 1; |
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} |
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signal(SIGILL, handler); |
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#endif |
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return altivec; |
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} |
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|
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static Uint32 SDL_CPUFeatures = 0xFFFFFFFF; |
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|
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static Uint32 SDL_GetCPUFeatures() |
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{ |
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if ( SDL_CPUFeatures == 0xFFFFFFFF ) { |
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SDL_CPUFeatures = 0; |
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if ( CPU_haveRDTSC() ) { |
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SDL_CPUFeatures |= CPU_HAS_RDTSC; |
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} |
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if ( CPU_haveMMX() ) { |
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SDL_CPUFeatures |= CPU_HAS_MMX; |
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} |
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if ( CPU_haveMMXExt() ) { |
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SDL_CPUFeatures |= CPU_HAS_MMXEXT; |
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} |
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if ( CPU_have3DNow() ) { |
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SDL_CPUFeatures |= CPU_HAS_3DNOW; |
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} |
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if ( CPU_have3DNowExt() ) { |
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SDL_CPUFeatures |= CPU_HAS_3DNOWEXT; |
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} |
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if ( CPU_haveSSE() ) { |
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SDL_CPUFeatures |= CPU_HAS_SSE; |
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} |
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if ( CPU_haveSSE2() ) { |
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SDL_CPUFeatures |= CPU_HAS_SSE2; |
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} |
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if ( CPU_haveAltiVec() ) { |
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SDL_CPUFeatures |= CPU_HAS_ALTIVEC; |
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} |
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} |
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return SDL_CPUFeatures; |
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} |
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|
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SDL_bool SDL_HasRDTSC() |
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{ |
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if ( SDL_GetCPUFeatures() & CPU_HAS_RDTSC ) { |
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return SDL_TRUE; |
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} |
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return SDL_FALSE; |
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} |
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|
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SDL_bool SDL_HasMMX() |
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{ |
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if ( SDL_GetCPUFeatures() & CPU_HAS_MMX ) { |
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return SDL_TRUE; |
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300 |
} |
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301 |
return SDL_FALSE; |
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} |
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|
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SDL_bool SDL_HasMMXExt() |
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if ( SDL_GetCPUFeatures() & CPU_HAS_MMXEXT ) { |
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return SDL_TRUE; |
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} |
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return SDL_FALSE; |
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} |
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|
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SDL_bool SDL_Has3DNow() |
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{ |
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if ( SDL_GetCPUFeatures() & CPU_HAS_3DNOW ) { |
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315 |
return SDL_TRUE; |
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316 |
} |
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return SDL_FALSE; |
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318 |
} |
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|
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SDL_bool SDL_Has3DNowExt() |
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{ |
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if ( SDL_GetCPUFeatures() & CPU_HAS_3DNOWEXT ) { |
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return SDL_TRUE; |
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} |
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return SDL_FALSE; |
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} |
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|
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328 |
SDL_bool SDL_HasSSE() |
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{ |
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330 |
if ( SDL_GetCPUFeatures() & CPU_HAS_SSE ) { |
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331 |
return SDL_TRUE; |
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332 |
} |
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333 |
return SDL_FALSE; |
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334 |
} |
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|
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SDL_bool SDL_HasSSE2() |
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{ |
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if ( SDL_GetCPUFeatures() & CPU_HAS_SSE2 ) { |
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return SDL_TRUE; |
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} |
b2fda076b02e
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
796
diff
changeset
|
341 |
return SDL_FALSE; |
b2fda076b02e
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
796
diff
changeset
|
342 |
} |
b2fda076b02e
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
796
diff
changeset
|
343 |
|
778
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
344 |
SDL_bool SDL_HasAltiVec() |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
345 |
{ |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
346 |
if ( SDL_GetCPUFeatures() & CPU_HAS_ALTIVEC ) { |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
347 |
return SDL_TRUE; |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
348 |
} |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
349 |
return SDL_FALSE; |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
350 |
} |
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
351 |
|
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
352 |
#ifdef TEST_MAIN |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
353 |
|
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
354 |
#include <stdio.h> |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
355 |
|
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
356 |
int main() |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
357 |
{ |
778
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
358 |
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
|
359 |
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
|
360 |
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
|
361 |
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
|
362 |
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
|
363 |
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
|
364 |
printf("SSE2: %d\n", SDL_HasSSE2()); |
778
8ac3f46f9d09
Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
365 |
printf("AltiVec: %d\n", SDL_HasAltiVec()); |
745
71ee03909f42
Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
366 |
return 0; |
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
367 |
} |
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
368 |
|
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
369 |
#endif /* TEST_MAIN */ |