diff options
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/dsputil.h | 1 | ||||
| -rw-r--r-- | libavcodec/i386/cputest.c | 34 |
2 files changed, 5 insertions, 30 deletions
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h index 44e6a9efc7..ce37cf46e5 100644 --- a/libavcodec/dsputil.h +++ b/libavcodec/dsputil.h @@ -432,6 +432,7 @@ int mm_support(void); #define MM_SSE 0x0008 /* SSE functions */ #define MM_SSE2 0x0010 /* PIV SSE2 functions */ #define MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */ +#define MM_SSE3 0x0040 /* Prescott SSE3 functions */ extern int mm_flags; diff --git a/libavcodec/i386/cputest.c b/libavcodec/i386/cputest.c index 64656c65a5..a66bdbe988 100644 --- a/libavcodec/i386/cputest.c +++ b/libavcodec/i386/cputest.c @@ -64,6 +64,8 @@ int mm_support(void) rval |= MM_MMXEXT | MM_SSE; if (std_caps & (1<<26)) rval |= MM_SSE2; + if (ecx & 1) + rval |= MM_SSE3; } cpuid(0x80000000, max_ext_level, ebx, ecx, edx); @@ -76,38 +78,10 @@ int mm_support(void) rval |= MM_3DNOWEXT; if (ext_caps & (1<<23)) rval |= MM_MMX; - } - - cpuid(0, eax, ebx, ecx, edx); - if ( ebx == 0x68747541 && - edx == 0x69746e65 && - ecx == 0x444d4163) { - /* AMD */ - if(ext_caps & (1<<22)) - rval |= MM_MMXEXT; - } else if (ebx == 0x746e6543 && - edx == 0x48727561 && - ecx == 0x736c7561) { /* "CentaurHauls" */ - /* VIA C3 */ - if(ext_caps & (1<<24)) - rval |= MM_MMXEXT; - } else if (ebx == 0x69727943 && - edx == 0x736e4978 && - ecx == 0x64616574) { - /* Cyrix Section */ - /* See if extended CPUID level 80000001 is supported */ - /* The value of CPUID/80000001 for the 6x86MX is undefined - according to the Cyrix CPU Detection Guide (Preliminary - Rev. 1.01 table 1), so we'll check the value of eax for - CPUID/0 to see if standard CPUID level 2 is supported. - According to the table, the only CPU which supports level - 2 is also the only one which supports extended CPUID levels. - */ - if (eax < 2) - return rval; - if (ext_caps & (1<<24)) + if (ext_caps & (1<<22)) rval |= MM_MMXEXT; } + #if 0 av_log(NULL, AV_LOG_DEBUG, "%s%s%s%s%s%s\n", (rval&MM_MMX) ? "MMX ":"", |