src/cpuinfo/SDL_cpuinfo.c
author Ryan C. Gordon <icculus@icculus.org>
Fri, 01 May 2015 01:12:48 -0400
changeset 9580 d37ef6990bf9
parent 9300 0293f45e4814
child 9619 b94b6d0bff0f
permissions -rw-r--r--
checkkeys: Readded the KEYUP event test.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#ifdef TEST_MAIN
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#include "SDL_config.h"
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#else
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#include "../SDL_internal.h"
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#endif
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#if defined(__WIN32__)
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#include "../core/windows/SDL_windows.h"
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#endif
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/* CPU feature detection for SDL */
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#include "SDL_cpuinfo.h"
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#ifdef HAVE_SYSCONF
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYSCTLBYNAME
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#endif
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#if defined(__MACOSX__) && (defined(__ppc__) || defined(__ppc64__))
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#include <sys/sysctl.h>         /* For AltiVec check */
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#elif defined(__OpenBSD__) && defined(__powerpc__)
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#include <sys/param.h>
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#include <sys/sysctl.h> /* For AltiVec check */
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#include <machine/cpu.h>
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#elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP
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#include <signal.h>
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#include <setjmp.h>
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#endif
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#define CPU_HAS_RDTSC   0x00000001
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#define CPU_HAS_ALTIVEC 0x00000002
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#define CPU_HAS_MMX     0x00000004
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#define CPU_HAS_3DNOW   0x00000008
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#define CPU_HAS_SSE     0x00000010
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#define CPU_HAS_SSE2    0x00000020
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#define CPU_HAS_SSE3    0x00000040
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#define CPU_HAS_SSE41   0x00000100
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#define CPU_HAS_SSE42   0x00000200
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#define CPU_HAS_AVX     0x00000400
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#define CPU_HAS_AVX2    0x00000800
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#if SDL_ALTIVEC_BLITTERS && HAVE_SETJMP && !__MACOSX__ && !__OpenBSD__
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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
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illegal_instruction(int sig)
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{
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    longjmp(jmpbuf, 1);
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}
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#endif /* HAVE_SETJMP */
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static int
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CPU_haveCPUID(void)
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{
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    int has_CPUID = 0;
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/* *INDENT-OFF* */
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#ifndef SDL_CPUINFO_DISABLED
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#if defined(__GNUC__) && defined(i386)
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    __asm__ (
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"        pushfl                      # Get original EFLAGS             \n"
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"        popl    %%eax                                                 \n"
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"        movl    %%eax,%%ecx                                           \n"
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"        xorl    $0x200000,%%eax     # Flip ID bit in EFLAGS           \n"
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"        pushl   %%eax               # Save new EFLAGS value on stack  \n"
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"        popfl                       # Replace current EFLAGS value    \n"
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"        pushfl                      # Get new EFLAGS                  \n"
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"        popl    %%eax               # Store new EFLAGS in EAX         \n"
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"        xorl    %%ecx,%%eax         # Can not toggle ID bit,          \n"
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"        jz      1f                  # Processor=80486                 \n"
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"        movl    $1,%0               # We have CPUID support           \n"
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"1:                                                                    \n"
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    : "=m" (has_CPUID)
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    :
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    : "%eax", "%ecx"
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    );
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#elif defined(__GNUC__) && defined(__x86_64__)
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/* Technically, if this is being compiled under __x86_64__ then it has 
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   CPUid by definition.  But it's nice to be able to prove it.  :)      */
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    __asm__ (
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"        pushfq                      # Get original EFLAGS             \n"
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"        popq    %%rax                                                 \n"
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"        movq    %%rax,%%rcx                                           \n"
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"        xorl    $0x200000,%%eax     # Flip ID bit in EFLAGS           \n"
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"        pushq   %%rax               # Save new EFLAGS value on stack  \n"
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"        popfq                       # Replace current EFLAGS value    \n"
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"        pushfq                      # Get new EFLAGS                  \n"
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"        popq    %%rax               # Store new EFLAGS in EAX         \n"
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"        xorl    %%ecx,%%eax         # Can not toggle ID bit,          \n"
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"        jz      1f                  # Processor=80486                 \n"
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"        movl    $1,%0               # We have CPUID support           \n"
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"1:                                                                    \n"
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    : "=m" (has_CPUID)
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    :
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    : "%rax", "%rcx"
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   120
    );
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#elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
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    __asm {
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        pushfd                      ; Get original EFLAGS
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        pop     eax
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        mov     ecx, eax
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        xor     eax, 200000h        ; Flip ID bit in EFLAGS
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        push    eax                 ; Save new EFLAGS value on stack
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        popfd                       ; Replace current EFLAGS value
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        pushfd                      ; Get new EFLAGS
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        pop     eax                 ; Store new EFLAGS in EAX
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        xor     eax, ecx            ; Can not toggle ID bit,
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        jz      done                ; Processor=80486
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        mov     has_CPUID,1         ; We have CPUID support
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done:
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    }
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#elif defined(_MSC_VER) && defined(_M_X64)
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    has_CPUID = 1;
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#elif defined(__sun) && defined(__i386)
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    __asm (
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"       pushfl                 \n"
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"       popl    %eax           \n"
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"       movl    %eax,%ecx      \n"
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"       xorl    $0x200000,%eax \n"
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"       pushl   %eax           \n"
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"       popfl                  \n"
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"       pushfl                 \n"
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"       popl    %eax           \n"
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"       xorl    %ecx,%eax      \n"
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"       jz      1f             \n"
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"       movl    $1,-8(%ebp)    \n"
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"1:                            \n"
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    );
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#elif defined(__sun) && defined(__amd64)
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    __asm (
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"       pushfq                 \n"
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"       popq    %rax           \n"
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"       movq    %rax,%rcx      \n"
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"       xorl    $0x200000,%eax \n"
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"       pushq   %rax           \n"
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"       popfq                  \n"
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"       pushfq                 \n"
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"       popq    %rax           \n"
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"       xorl    %ecx,%eax      \n"
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"       jz      1f             \n"
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"       movl    $1,-8(%rbp)    \n"
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"1:                            \n"
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    );
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#endif
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#endif
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/* *INDENT-ON* */
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    return has_CPUID;
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}
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   173
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#if defined(__GNUC__) && defined(i386)
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#define cpuid(func, a, b, c, d) \
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    __asm__ __volatile__ ( \
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"        pushl %%ebx        \n" \
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"        xorl %%ecx,%%ecx   \n" \
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"        cpuid              \n" \
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"        movl %%ebx, %%esi  \n" \
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"        popl %%ebx         \n" : \
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            "=a" (a), "=S" (b), "=c" (c), "=d" (d) : "a" (func))
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#elif defined(__GNUC__) && defined(__x86_64__)
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#define cpuid(func, a, b, c, d) \
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    __asm__ __volatile__ ( \
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"        pushq %%rbx        \n" \
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"        xorq %%rcx,%%rcx   \n" \
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"        cpuid              \n" \
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"        movq %%rbx, %%rsi  \n" \
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"        popq %%rbx         \n" : \
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            "=a" (a), "=S" (b), "=c" (c), "=d" (d) : "a" (func))
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#elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
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   193
#define cpuid(func, a, b, c, d) \
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    __asm { \
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        __asm mov eax, func \
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        __asm xor ecx, ecx \
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        __asm cpuid \
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        __asm mov a, eax \
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        __asm mov b, ebx \
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        __asm mov c, ecx \
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        __asm mov d, edx \
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   202
}
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   203
#elif defined(_MSC_VER) && defined(_M_X64)
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   204
#define cpuid(func, a, b, c, d) \
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{ \
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   206
    int CPUInfo[4]; \
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   207
    __cpuid(CPUInfo, func); \
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   208
    a = CPUInfo[0]; \
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   209
    b = CPUInfo[1]; \
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   210
    c = CPUInfo[2]; \
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   211
    d = CPUInfo[3]; \
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   212
}
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#else
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#define cpuid(func, a, b, c, d) \
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   215
    a = b = c = d = 0
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   216
#endif
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   217
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static int
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CPU_getCPUIDFeatures(void)
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{
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    int features = 0;
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    int a, b, c, d;
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   223
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    cpuid(0, a, b, c, d);
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   225
    if (a >= 1) {
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        cpuid(1, a, b, c, d);
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        features = d;
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   228
    }
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   229
    return features;
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   230
}
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   231
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   232
static SDL_bool
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   233
CPU_OSSavesYMM(void)
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   234
{
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   235
    int a, b, c, d;
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   236
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   237
    /* Check to make sure we can call xgetbv */
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   238
    cpuid(0, a, b, c, d);
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   239
    if (a < 1) {
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   240
        return SDL_FALSE;
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   241
    }
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   242
    cpuid(1, a, b, c, d);
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   243
    if (!(c & 0x08000000)) {
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   244
        return SDL_FALSE;
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   245
    }
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   246
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   247
    /* Call xgetbv to see if YMM register state is saved */
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   248
    a = 0;
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   249
#if defined(__GNUC__) && (defined(i386) || defined(__x86_64__))
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   250
    asm(".byte 0x0f, 0x01, 0xd0" : "=a" (a) : "c" (0) : "%edx");
9047
101109110bf7 WinRT build fix for ARM platforms
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   251
#elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64)) && (_MSC_FULL_VER >= 160040219) /* VS2010 SP1 */
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   252
    a = (int)_xgetbv(0);
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   253
#elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
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   254
    __asm
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   255
    {
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   256
        xor ecx, ecx
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   257
        _asm _emit 0x0f _asm _emit 0x01 _asm _emit 0xd0
9005
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diff changeset
   258
        mov a, eax
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
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diff changeset
   259
    }
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
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   260
#endif
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
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   261
    return ((a & 6) == 6) ? SDL_TRUE : SDL_FALSE;
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diff changeset
   262
}
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
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   263
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
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   264
static int
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   265
CPU_haveRDTSC(void)
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   266
{
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   267
    if (CPU_haveCPUID()) {
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   268
        return (CPU_getCPUIDFeatures() & 0x00000010);
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   269
    }
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   270
    return 0;
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   271
}
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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parents:
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   272
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   273
static int
5389
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   274
CPU_haveAltiVec(void)
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   275
{
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   276
    volatile int altivec = 0;
9278
8900afb78a19 Initial merge of Emscripten port!
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   277
#ifndef SDL_CPUINFO_DISABLED
6363
8506dd64e859 Fixed bug 1434 - Add AltiVec detection for OpenBSD/powerpc
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   278
#if (defined(__MACOSX__) && (defined(__ppc__) || defined(__ppc64__))) || (defined(__OpenBSD__) && defined(__powerpc__))
8506dd64e859 Fixed bug 1434 - Add AltiVec detection for OpenBSD/powerpc
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   279
#ifdef __OpenBSD__
8506dd64e859 Fixed bug 1434 - Add AltiVec detection for OpenBSD/powerpc
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   280
    int selectors[2] = { CTL_MACHDEP, CPU_ALTIVEC };
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   281
#else
5389
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   282
    int selectors[2] = { CTL_HW, HW_VECTORUNIT };
6363
8506dd64e859 Fixed bug 1434 - Add AltiVec detection for OpenBSD/powerpc
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   283
#endif
5389
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   284
    int hasVectorUnit = 0;
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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   285
    size_t length = sizeof(hasVectorUnit);
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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   286
    int error = sysctl(selectors, 2, &hasVectorUnit, &length, NULL, 0);
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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   287
    if (0 == error)
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diff changeset
   288
        altivec = (hasVectorUnit != 0);
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diff changeset
   289
#elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP
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diff changeset
   290
    void (*handler) (int sig);
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   291
    handler = signal(SIGILL, illegal_instruction);
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   292
    if (setjmp(jmpbuf) == 0) {
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   293
        asm volatile ("mtspr 256, %0\n\t" "vand %%v0, %%v0, %%v0"::"r" (-1));
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   294
        altivec = 1;
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diff changeset
   295
    }
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diff changeset
   296
    signal(SIGILL, handler);
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   297
#endif
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8900afb78a19 Initial merge of Emscripten port!
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diff changeset
   298
#endif
5389
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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   299
    return altivec;
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diff changeset
   300
}
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   301
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   302
static int
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   303
CPU_haveMMX(void)
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   304
{
1895
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diff changeset
   305
    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
   306
        return (CPU_getCPUIDFeatures() & 0x00800000);
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diff changeset
   307
    }
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diff changeset
   308
    return 0;
745
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
   309
}
71ee03909f42 Greatly simplified the SDL CPU info code
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diff changeset
   310
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diff changeset
   311
static int
5389
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   312
CPU_have3DNow(void)
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   313
{
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   314
    if (CPU_haveCPUID()) {
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   315
        int a, b, c, d;
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   316
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   317
        cpuid(0x80000000, a, b, c, d);
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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parents: 5263
diff changeset
   318
        if (a >= 0x80000001) {
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   319
            cpuid(0x80000001, a, b, c, d);
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   320
            return (d & 0x80000000);
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   321
        }
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   322
    }
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   323
    return 0;
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   324
}
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
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diff changeset
   325
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
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diff changeset
   326
static int
1895
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diff changeset
   327
CPU_haveSSE(void)
745
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diff changeset
   328
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   329
    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
   330
        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
   331
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   332
    return 0;
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
   333
}
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
   334
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
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diff changeset
   335
static int
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   336
CPU_haveSSE2(void)
778
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   337
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   338
    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
   339
        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
   340
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   341
    return 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
   342
}
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   343
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
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diff changeset
   344
static int
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
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parents: 5120
diff changeset
   345
CPU_haveSSE3(void)
1895
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
   346
{
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   347
    if (CPU_haveCPUID()) {
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   348
        int a, b, c, d;
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   349
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   350
        cpuid(0, a, b, c, d);
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   351
        if (a >= 1) {
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   352
            cpuid(1, a, b, c, d);
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   353
            return (c & 0x00000001);
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
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parents: 5120
diff changeset
   354
        }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   355
    }
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   356
    return 0;
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   357
}
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   358
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   359
static int
5263
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   360
CPU_haveSSE41(void)
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   361
{
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   362
    if (CPU_haveCPUID()) {
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   363
        int a, b, c, d;
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   364
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   365
        cpuid(0, a, b, c, d);
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   366
        if (a >= 1) {
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   367
            cpuid(1, a, b, c, d);
5263
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   368
            return (c & 0x00080000);
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   369
        }
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   370
    }
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   371
    return 0;
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   372
}
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   373
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   374
static int
5263
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   375
CPU_haveSSE42(void)
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   376
{
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   377
    if (CPU_haveCPUID()) {
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   378
        int a, b, c, d;
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   379
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   380
        cpuid(0, a, b, c, d);
5263
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   381
        if (a >= 1) {
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   382
            cpuid(1, a, b, c, d);
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   383
            return (c & 0x00100000);
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   384
        }
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   385
    }
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   386
    return 0;
778
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   387
}
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   388
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   389
static int
8148
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   390
CPU_haveAVX(void)
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   391
{
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   392
    if (CPU_haveCPUID() && CPU_OSSavesYMM()) {
8148
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   393
        int a, b, c, d;
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   394
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   395
        cpuid(0, a, b, c, d);
8148
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   396
        if (a >= 1) {
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   397
            cpuid(1, a, b, c, d);
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   398
            return (c & 0x10000000);
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   399
        }
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   400
    }
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   401
    return 0;
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   402
}
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   403
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   404
static int
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   405
CPU_haveAVX2(void)
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   406
{
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   407
    if (CPU_haveCPUID() && CPU_OSSavesYMM()) {
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   408
        int a, b, c, d;
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   409
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   410
        cpuid(0, a, b, c, d);
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   411
        if (a >= 7) {
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   412
            cpuid(7, a, b, c, d);
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   413
            return (b & 0x00000020);
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   414
        }
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   415
    }
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   416
    return 0;
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   417
}
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   418
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   419
static int SDL_CPUCount = 0;
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   420
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   421
int
5120
b3f075368b1f Added API function to get CPU cache line size.
Sam Lantinga <slouken@libsdl.org>
parents: 5115
diff changeset
   422
SDL_GetCPUCount(void)
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   423
{
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   424
    if (!SDL_CPUCount) {
9278
8900afb78a19 Initial merge of Emscripten port!
Ryan C. Gordon <icculus@icculus.org>
parents: 9047
diff changeset
   425
#ifndef SDL_CPUINFO_DISABLED
3606
1a4456a01995 Fixed bug #924
Sam Lantinga <slouken@libsdl.org>
parents: 3587
diff changeset
   426
#if defined(HAVE_SYSCONF) && defined(_SC_NPROCESSORS_ONLN)
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
   427
        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
   428
            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.
Sam Lantinga <slouken@libsdl.org>
parents: 3584
diff changeset
   429
        }
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
   430
#endif
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   431
#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
   432
        if (SDL_CPUCount <= 0) {
3580
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   433
            size_t size = sizeof(SDL_CPUCount);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   434
            sysctlbyname("hw.ncpu", &SDL_CPUCount, &size, NULL, 0);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   435
        }
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   436
#endif
5086
c2539ff054c8 Fixed compiling on Windows Mobile SDK 5.0 with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 5062
diff changeset
   437
#ifdef __WIN32__
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
   438
        if (SDL_CPUCount <= 0) {
3580
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   439
            SYSTEM_INFO info;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   440
            GetSystemInfo(&info);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   441
            SDL_CPUCount = info.dwNumberOfProcessors;
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   442
        }
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   443
#endif
9278
8900afb78a19 Initial merge of Emscripten port!
Ryan C. Gordon <icculus@icculus.org>
parents: 9047
diff changeset
   444
#endif
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   445
        /* 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.
Sam Lantinga <slouken@libsdl.org>
parents: 3584
diff changeset
   446
        if (SDL_CPUCount <= 0) {
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   447
            SDL_CPUCount = 1;
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   448
        }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   449
    }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   450
    return SDL_CPUCount;
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   451
}
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   452
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   453
/* Oh, such a sweet sweet trick, just not very useful. :) */
4472
791b3256fb22 Mostly cleaned up warnings with -Wmissing-prototypes
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
   454
static const char *
5120
b3f075368b1f Added API function to get CPU cache line size.
Sam Lantinga <slouken@libsdl.org>
parents: 5115
diff changeset
   455
SDL_GetCPUType(void)
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   456
{
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   457
    static char SDL_CPUType[13];
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   458
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   459
    if (!SDL_CPUType[0]) {
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   460
        int i = 0;
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   461
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   462
        if (CPU_haveCPUID()) {
9300
0293f45e4814 Cleaned up some compiler warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 9278
diff changeset
   463
            int a, b, c, d;
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   464
            cpuid(0x00000000, a, b, c, d);
9300
0293f45e4814 Cleaned up some compiler warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 9278
diff changeset
   465
            (void) a;
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   466
            SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   467
            SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   468
            SDL_CPUType[i++] = (char)(b & 0xff); b >>= 8;
8642
3506de54b829 Static analysis fix: Value stored to '[bcd]' is never read.
Ryan C. Gordon <icculus@icculus.org>
parents: 8241
diff changeset
   469
            SDL_CPUType[i++] = (char)(b & 0xff);
3506de54b829 Static analysis fix: Value stored to '[bcd]' is never read.
Ryan C. Gordon <icculus@icculus.org>
parents: 8241
diff changeset
   470
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   471
            SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   472
            SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   473
            SDL_CPUType[i++] = (char)(d & 0xff); d >>= 8;
8642
3506de54b829 Static analysis fix: Value stored to '[bcd]' is never read.
Ryan C. Gordon <icculus@icculus.org>
parents: 8241
diff changeset
   474
            SDL_CPUType[i++] = (char)(d & 0xff);
3506de54b829 Static analysis fix: Value stored to '[bcd]' is never read.
Ryan C. Gordon <icculus@icculus.org>
parents: 8241
diff changeset
   475
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   476
            SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   477
            SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   478
            SDL_CPUType[i++] = (char)(c & 0xff); c >>= 8;
8642
3506de54b829 Static analysis fix: Value stored to '[bcd]' is never read.
Ryan C. Gordon <icculus@icculus.org>
parents: 8241
diff changeset
   479
            SDL_CPUType[i++] = (char)(c & 0xff);
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   480
        }
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   481
        if (!SDL_CPUType[0]) {
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   482
            SDL_strlcpy(SDL_CPUType, "Unknown", sizeof(SDL_CPUType));
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   483
        }
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   484
    }
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   485
    return SDL_CPUType;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   486
}
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   487
5981
75caa8a7d559 Fixed a whole slew of compiler warnings that -Wall exposed.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   488
75caa8a7d559 Fixed a whole slew of compiler warnings that -Wall exposed.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   489
#ifdef TEST_MAIN  /* !!! FIXME: only used for test at the moment. */
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   490
static const char *
5120
b3f075368b1f Added API function to get CPU cache line size.
Sam Lantinga <slouken@libsdl.org>
parents: 5115
diff changeset
   491
SDL_GetCPUName(void)
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   492
{
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   493
    static char SDL_CPUName[48];
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   494
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   495
    if (!SDL_CPUName[0]) {
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   496
        int i = 0;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   497
        int a, b, c, d;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   498
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   499
        if (CPU_haveCPUID()) {
3580
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   500
            cpuid(0x80000000, a, b, c, d);
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   501
            if (a >= 0x80000004) {
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   502
                cpuid(0x80000002, a, b, c, d);
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   503
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   504
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   505
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   506
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   507
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   508
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   509
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   510
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   511
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   512
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   513
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   514
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   515
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   516
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   517
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   518
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
3580
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   519
                cpuid(0x80000003, a, b, c, d);
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   520
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   521
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   522
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   523
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   524
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   525
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   526
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   527
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   528
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   529
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   530
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   531
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   532
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   533
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   534
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   535
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
3580
951dd6a5d1a2 Implemented Windows version of SDL_GetCPUCount()
Sam Lantinga <slouken@libsdl.org>
parents: 3579
diff changeset
   536
                cpuid(0x80000004, a, b, c, d);
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   537
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   538
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   539
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   540
                SDL_CPUName[i++] = (char)(a & 0xff); a >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   541
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   542
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   543
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   544
                SDL_CPUName[i++] = (char)(b & 0xff); b >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   545
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   546
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   547
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   548
                SDL_CPUName[i++] = (char)(c & 0xff); c >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   549
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   550
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   551
                SDL_CPUName[i++] = (char)(d & 0xff); d >>= 8;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   552
                SDL_CPUName[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
   553
            }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   554
        }
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   555
        if (!SDL_CPUName[0]) {
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   556
            SDL_strlcpy(SDL_CPUName, "Unknown", sizeof(SDL_CPUName));
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   557
        }
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   558
    }
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   559
    return SDL_CPUName;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   560
}
5981
75caa8a7d559 Fixed a whole slew of compiler warnings that -Wall exposed.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   561
#endif
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   562
5120
b3f075368b1f Added API function to get CPU cache line size.
Sam Lantinga <slouken@libsdl.org>
parents: 5115
diff changeset
   563
int
b3f075368b1f Added API function to get CPU cache line size.
Sam Lantinga <slouken@libsdl.org>
parents: 5115
diff changeset
   564
SDL_GetCPUCacheLineSize(void)
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   565
{
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   566
    const char *cpuType = SDL_GetCPUType();
9300
0293f45e4814 Cleaned up some compiler warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 9278
diff changeset
   567
    int a, b, c, d;
0293f45e4814 Cleaned up some compiler warnings.
Ryan C. Gordon <icculus@icculus.org>
parents: 9278
diff changeset
   568
    (void) a; (void) b; (void) c; (void) d;
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   569
    if (SDL_strcmp(cpuType, "GenuineIntel") == 0) {
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   570
        cpuid(0x00000001, a, b, c, d);
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   571
        return (((b >> 8) & 0xff) * 8);
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   572
    } else if (SDL_strcmp(cpuType, "AuthenticAMD") == 0) {
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   573
        cpuid(0x80000005, a, b, c, d);
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   574
        return (c & 0xff);
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   575
    } else {
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   576
        /* Just make a guess here... */
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   577
        return SDL_CACHELINE_SIZE;
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   578
    }
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   579
}
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   580
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   581
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
   582
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
   583
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
   584
SDL_GetCPUFeatures(void)
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   585
{
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
   586
    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
   587
        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
   588
        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
   589
            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
   590
        }
5389
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   591
        if (CPU_haveAltiVec()) {
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   592
            SDL_CPUFeatures |= CPU_HAS_ALTIVEC;
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   593
        }
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
   594
        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
   595
            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
   596
        }
5389
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   597
        if (CPU_have3DNow()) {
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   598
            SDL_CPUFeatures |= CPU_HAS_3DNOW;
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   599
        }
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
   600
        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
   601
            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
   602
        }
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
   603
        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
   604
            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
   605
        }
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   606
        if (CPU_haveSSE3()) {
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   607
            SDL_CPUFeatures |= CPU_HAS_SSE3;
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   608
        }
5263
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   609
        if (CPU_haveSSE41()) {
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   610
            SDL_CPUFeatures |= CPU_HAS_SSE41;
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   611
        }
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   612
        if (CPU_haveSSE42()) {
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   613
            SDL_CPUFeatures |= CPU_HAS_SSE42;
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
   614
        }
8148
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   615
        if (CPU_haveAVX()) {
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   616
            SDL_CPUFeatures |= CPU_HAS_AVX;
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   617
        }
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   618
        if (CPU_haveAVX2()) {
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   619
            SDL_CPUFeatures |= CPU_HAS_AVX2;
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   620
        }
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
   621
    }
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
   622
    return SDL_CPUFeatures;
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   623
}
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   624
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
   625
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
   626
SDL_HasRDTSC(void)
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
   627
{
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
   628
    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
   629
        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
   630
    }
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
   631
    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
   632
}
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
   633
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
   634
SDL_bool
5389
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   635
SDL_HasAltiVec(void)
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   636
{
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   637
    if (SDL_GetCPUFeatures() & CPU_HAS_ALTIVEC) {
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   638
        return SDL_TRUE;
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   639
    }
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   640
    return SDL_FALSE;
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   641
}
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   642
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   643
SDL_bool
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
   644
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
   645
{
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
   646
    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
   647
        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
   648
    }
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
   649
    return SDL_FALSE;
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
   650
}
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
   651
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
   652
SDL_bool
5389
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   653
SDL_Has3DNow(void)
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   654
{
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   655
    if (SDL_GetCPUFeatures() & CPU_HAS_3DNOW) {
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   656
        return SDL_TRUE;
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   657
    }
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   658
    return SDL_FALSE;
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   659
}
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   660
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   661
SDL_bool
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
   662
SDL_HasSSE(void)
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   663
{
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
   664
    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
   665
        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
   666
    }
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
   667
    return SDL_FALSE;
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   668
}
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   669
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
   670
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
   671
SDL_HasSSE2(void)
804
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
   672
{
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
   673
    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
   674
        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
   675
    }
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
   676
    return SDL_FALSE;
804
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
   677
}
b2fda076b02e *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 796
diff changeset
   678
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
   679
SDL_bool
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   680
SDL_HasSSE3(void)
778
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   681
{
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   682
    if (SDL_GetCPUFeatures() & CPU_HAS_SSE3) {
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   683
        return SDL_TRUE;
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   684
    }
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   685
    return SDL_FALSE;
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   686
}
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   687
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   688
SDL_bool
5263
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   689
SDL_HasSSE41(void)
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   690
{
5263
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   691
    if (SDL_GetCPUFeatures() & CPU_HAS_SSE41) {
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   692
        return SDL_TRUE;
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   693
    }
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   694
    return SDL_FALSE;
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   695
}
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   696
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   697
SDL_bool
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   698
SDL_HasSSE42(void)
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   699
{
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   700
    if (SDL_GetCPUFeatures() & CPU_HAS_SSE42) {
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
   701
        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
   702
    }
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
   703
    return SDL_FALSE;
778
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   704
}
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   705
8148
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   706
SDL_bool
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   707
SDL_HasAVX(void)
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   708
{
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   709
    if (SDL_GetCPUFeatures() & CPU_HAS_AVX) {
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   710
        return SDL_TRUE;
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   711
    }
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   712
    return SDL_FALSE;
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   713
}
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   714
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   715
SDL_bool
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   716
SDL_HasAVX2(void)
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   717
{
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   718
    if (SDL_GetCPUFeatures() & CPU_HAS_AVX2) {
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   719
        return SDL_TRUE;
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   720
    }
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   721
    return SDL_FALSE;
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   722
}
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   723
7821
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   724
static int SDL_SystemRAM = 0;
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   725
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   726
int
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   727
SDL_GetSystemRAM(void)
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   728
{
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   729
    if (!SDL_SystemRAM) {
9278
8900afb78a19 Initial merge of Emscripten port!
Ryan C. Gordon <icculus@icculus.org>
parents: 9047
diff changeset
   730
#ifndef SDL_CPUINFO_DISABLED
7821
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   731
#if defined(HAVE_SYSCONF) && defined(_SC_PHYS_PAGES) && defined(_SC_PAGESIZE)
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   732
        if (SDL_SystemRAM <= 0) {
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   733
            SDL_SystemRAM = (int)((Sint64)sysconf(_SC_PHYS_PAGES) * sysconf(_SC_PAGESIZE) / (1024*1024));
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   734
        }
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   735
#endif
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   736
#ifdef HAVE_SYSCTLBYNAME
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   737
        if (SDL_SystemRAM <= 0) {
8240
334257cd613d Fixed bug 2335 - Fails to build on Debian GNU/kFreeBSD
Sam Lantinga <slouken@libsdl.org>
parents: 8149
diff changeset
   738
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
7826
a87057441d01 Fix to unbreak SDL_GetSystemRAM() on FreeBSD
Sam Lantinga <slouken@libsdl.org>
parents: 7823
diff changeset
   739
#ifdef HW_REALMEM
a87057441d01 Fix to unbreak SDL_GetSystemRAM() on FreeBSD
Sam Lantinga <slouken@libsdl.org>
parents: 7823
diff changeset
   740
            int mib[2] = {CTL_HW, HW_REALMEM};
a87057441d01 Fix to unbreak SDL_GetSystemRAM() on FreeBSD
Sam Lantinga <slouken@libsdl.org>
parents: 7823
diff changeset
   741
#else
a87057441d01 Fix to unbreak SDL_GetSystemRAM() on FreeBSD
Sam Lantinga <slouken@libsdl.org>
parents: 7823
diff changeset
   742
            /* might only report up to 2 GiB */
a87057441d01 Fix to unbreak SDL_GetSystemRAM() on FreeBSD
Sam Lantinga <slouken@libsdl.org>
parents: 7823
diff changeset
   743
            int mib[2] = {CTL_HW, HW_PHYSMEM};
a87057441d01 Fix to unbreak SDL_GetSystemRAM() on FreeBSD
Sam Lantinga <slouken@libsdl.org>
parents: 7823
diff changeset
   744
#endif /* HW_REALMEM */
a87057441d01 Fix to unbreak SDL_GetSystemRAM() on FreeBSD
Sam Lantinga <slouken@libsdl.org>
parents: 7823
diff changeset
   745
#else
7821
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   746
            int mib[2] = {CTL_HW, HW_MEMSIZE};
8240
334257cd613d Fixed bug 2335 - Fails to build on Debian GNU/kFreeBSD
Sam Lantinga <slouken@libsdl.org>
parents: 8149
diff changeset
   747
#endif /* __FreeBSD__ || __FreeBSD_kernel__ */
7823
4ab3a5ee041d Fixed compiling on Mac OS X, added a system RAM test
Sam Lantinga <slouken@libsdl.org>
parents: 7822
diff changeset
   748
            Uint64 memsize = 0;
7821
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   749
            size_t len = sizeof(memsize);
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   750
            
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   751
            if (sysctl(mib, 2, &memsize, &len, NULL, 0) == 0) {
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   752
                SDL_SystemRAM = (int)(memsize / (1024*1024));
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   753
            }
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   754
        }
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   755
#endif
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   756
#ifdef __WIN32__
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   757
        if (SDL_SystemRAM <= 0) {
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   758
            MEMORYSTATUSEX stat;
7889
9ec71e56071c Initialize MEMORYSTATUSEX size before GlobalMemoryStatusEx() (thanks, Justin!).
Ryan C. Gordon <icculus@icculus.org>
parents: 7860
diff changeset
   759
            stat.dwLength = sizeof(stat);
7821
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   760
            if (GlobalMemoryStatusEx(&stat)) {
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   761
                SDL_SystemRAM = (int)(stat.ullTotalPhys / (1024 * 1024));
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   762
            }
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   763
        }
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   764
#endif
9278
8900afb78a19 Initial merge of Emscripten port!
Ryan C. Gordon <icculus@icculus.org>
parents: 9047
diff changeset
   765
#endif
7821
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   766
    }
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   767
    return SDL_SystemRAM;
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   768
}
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   769
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   770
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   771
#ifdef TEST_MAIN
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   772
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   773
#include <stdio.h>
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   774
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
   775
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
   776
main()
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   777
{
3579
3427271a2d75 Added SDL_GetCPUCount() to see how many cores are available.
Sam Lantinga <slouken@libsdl.org>
parents: 3515
diff changeset
   778
    printf("CPU count: %d\n", SDL_GetCPUCount());
5115
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   779
    printf("CPU type: %s\n", SDL_GetCPUType());
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   780
    printf("CPU name: %s\n", SDL_GetCPUName());
427998ff3bcf Added cache line size info in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 5090
diff changeset
   781
    printf("CacheLine size: %d\n", SDL_GetCPUCacheLineSize());
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
   782
    printf("RDTSC: %d\n", SDL_HasRDTSC());
5389
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   783
    printf("Altivec: %d\n", SDL_HasAltiVec());
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
   784
    printf("MMX: %d\n", SDL_HasMMX());
5389
24903690f48a Re-added the 3DNow! and AltiVec instruction support.
Sam Lantinga <slouken@libsdl.org>
parents: 5263
diff changeset
   785
    printf("3DNow: %d\n", SDL_Has3DNow());
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
   786
    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
   787
    printf("SSE2: %d\n", SDL_HasSSE2());
5259
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
Sam Lantinga <slouken@libsdl.org>
parents: 5120
diff changeset
   788
    printf("SSE3: %d\n", SDL_HasSSE3());
5263
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   789
    printf("SSE4.1: %d\n", SDL_HasSSE41());
e1122f31fec5 Fixed SSE4 detection, and split it into SSE 4.1 and 4.2
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   790
    printf("SSE4.2: %d\n", SDL_HasSSE42());
8148
56ba41ac64fe Fixed bug 2376 - no SDL_HasAVX
Sam Lantinga <slouken@libsdl.org>
parents: 8093
diff changeset
   791
    printf("AVX: %d\n", SDL_HasAVX());
9003
446ed0fe0fc3 Fixed bug in AVX detection and added AVX2 detection
Sam Lantinga <slouken@libsdl.org>
parents: 8642
diff changeset
   792
    printf("AVX2: %d\n", SDL_HasAVX2());
7821
c47ae79f0de8 Added an API to get the amount of system RAM
Sam Lantinga <slouken@libsdl.org>
parents: 6885
diff changeset
   793
    printf("RAM: %d MB\n", SDL_GetSystemRAM());
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
   794
    return 0;
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   795
}
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   796
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   797
#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
   798
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
   799
/* vi: set ts=4 sw=4 expandtab: */