diff options
Diffstat (limited to 'src/libffmpeg/libavcodec/i386/cputest.c')
| -rw-r--r-- | src/libffmpeg/libavcodec/i386/cputest.c | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/src/libffmpeg/libavcodec/i386/cputest.c b/src/libffmpeg/libavcodec/i386/cputest.c deleted file mode 100644 index 0705ab3e5..000000000 --- a/src/libffmpeg/libavcodec/i386/cputest.c +++ /dev/null @@ -1,130 +0,0 @@ -/* - * CPU detection code, extracted from mmx.h - * (c)1997-99 by H. Dietz and R. Fisher - * Converted to C and improved by Fabrice Bellard. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <stdlib.h> -#include "../dsputil.h" - -#undef printf - -#ifdef ARCH_X86_64 -# define REG_b "rbx" -# define REG_S "rsi" -#else -# define REG_b "ebx" -# define REG_S "esi" -#endif - -/* ebx saving is necessary for PIC. gcc seems unable to see it alone */ -#define cpuid(index,eax,ebx,ecx,edx)\ - __asm __volatile\ - ("mov %%"REG_b", %%"REG_S"\n\t"\ - "cpuid\n\t"\ - "xchg %%"REG_b", %%"REG_S\ - : "=a" (eax), "=S" (ebx),\ - "=c" (ecx), "=d" (edx)\ - : "0" (index)); - -/* Function to test if multimedia instructions are supported... */ -int mm_support(void) -{ - int rval = 0; - int eax, ebx, ecx, edx; - int max_std_level, max_ext_level, std_caps=0, ext_caps=0; - long a, c; - - __asm__ __volatile__ ( - /* See if CPUID instruction is supported ... */ - /* ... Get copies of EFLAGS into eax and ecx */ - "pushf\n\t" - "pop %0\n\t" - "mov %0, %1\n\t" - - /* ... Toggle the ID bit in one copy and store */ - /* to the EFLAGS reg */ - "xor $0x200000, %0\n\t" - "push %0\n\t" - "popf\n\t" - - /* ... Get the (hopefully modified) EFLAGS */ - "pushf\n\t" - "pop %0\n\t" - : "=a" (a), "=c" (c) - : - : "cc" - ); - - if (a == c) - return 0; /* CPUID not supported */ - - cpuid(0, max_std_level, ebx, ecx, edx); - - if(max_std_level >= 1){ - cpuid(1, eax, ebx, ecx, std_caps); - if (std_caps & (1<<23)) - rval |= MM_MMX; - if (std_caps & (1<<25)) - rval |= MM_MMXEXT | MM_SSE; - if (std_caps & (1<<26)) - rval |= MM_SSE2; - if (ecx & 1) - rval |= MM_SSE3; - if (ecx & 0x00000200 ) - rval |= MM_SSSE3; - } - - cpuid(0x80000000, max_ext_level, ebx, ecx, edx); - - if(max_ext_level >= 0x80000001){ - cpuid(0x80000001, eax, ebx, ecx, ext_caps); - if (ext_caps & (1<<31)) - rval |= MM_3DNOW; - if (ext_caps & (1<<30)) - rval |= MM_3DNOWEXT; - if (ext_caps & (1<<23)) - rval |= MM_MMX; - if (ext_caps & (1<<22)) - rval |= MM_MMXEXT; - } - -#if 0 - av_log(NULL, AV_LOG_DEBUG, "%s%s%s%s%s%s%s%s\n", - (rval&MM_MMX) ? "MMX ":"", - (rval&MM_MMXEXT) ? "MMX2 ":"", - (rval&MM_SSE) ? "SSE ":"", - (rval&MM_SSE2) ? "SSE2 ":"", - (rval&MM_SSE3) ? "SSE3 ":"", - (rval&MM_SSSE3) ? "SSSE3 ":"", - (rval&MM_3DNOW) ? "3DNow ":"", - (rval&MM_3DNOWEXT) ? "3DNowExt ":""); -#endif - return rval; -} - -#ifdef __TEST__ -int main ( void ) -{ - int mm_flags; - mm_flags = mm_support(); - printf("mm_support = 0x%08X\n",mm_flags); - return 0; -} -#endif |