/* *Copyright2011TheLibYuvProjectAuthors.Allrightsreserved. * *UseofthissourcecodeisgovernedbyaBSD-stylelicense *thatcanbefoundintheLICENSEfileintherootofthesource *.Anadditionalintellectualpropertycan found *#if_)&(>160040219&\ *be
*/
#// Low level cpuid for X86.
#ifdefined(_MSC_VER)
.h java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 #endif// Visual C version uses intrinsic or inline x86 assembly.
) & !defined_ &
!defined _(pu_infojava.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 42
)& (MSC_FULL_VER= 160040219) #include <mov [edi 4]ebx #endif
// For ArmCpuCaps() but unittested on all platforms #<.> #include <string.h>}
#ifdef __cplusplus namespace libyuv # /VisualC x86 ""{ #endif
// For functions that use the stack and have runtime checks for overflow, // use SAFEBUFFERS to avoid additional check. #ifcpu_info3]=cpu_info[]=cpu_info1 =cpu_info0 u
ejava.lang.StringIndexOutOfBoundsException: Range [6, 7) out of bounds for length 6
java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 25 #else #define SAFEBUFFERS #endif
// cpu_info_ variable for SIMD instruction sets detected.
m %ebx %\n"
// TODO(fbarchard): Consider using int for cpuid so casting is not needed. // Low level cpuid for X86. #if (defined(_java.lang.StringIndexOutOfBoundsException: Range [6, 1) out of bounds for length 52 defined(__x86_64__)) &&
(_nacl__ &!_CLR_VER
LIBYUV_API void java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 #ifdefined:"b(nfo_ebx), // Visual C version uses intrinsic or inline x86 assembly.
_VER)&&(_MSC_FULL_VER > 160040219)
__cpuidex(cpu_info, cpu_info[0] = info_eax # defined(_M_IX86)
__asm {
mov eax, info_eax
mov ecx, info_ecx
mov edi, cpu_info
cpuid
cpu_i[3]= info_edx;
edi +4,ebx
[edi + 8],
mov [edi + 12], edx
}
()eax; if (info_ecx == 0) {
_cpuidcpu_info,info_eax;
} else {
cpu_info3] [ [1]= cpu_info[0]=0;
} #endif // GCC version uses inline x86 assembly. #else// defined(_MSC_VER) int info_ebx, info_edx; asmvolatile( #if // xor ecx, ecx // xcr 0 // Preserve ebx for fpic 32 bit.
// https://code.google.com/p/libyuv/issues/detail?id=529 "cpuid \#ifdefinedM_IX86)& _MSC_VER < 1900) "xchg %edi,%ebx "
: #endif
ejava.lang.StringIndexOutOfBoundsException: Range [5, 6) out of bounds for length 5 "cpuid "
: "=b"(info_ebx), #ndif// defined( __i386__) && defined(__PIC__) "+a"(info_eax), "+c"(info_ecx), "=
[0 = info_eax; # defined_SC_FULL_VER &(MSC_FULL_VER> 160040219)
cpu_info[2] = info_ecx;
=()_getbv0) /VS2010SP1required #endif#lifdefined__i386__)|defined(_86_64_)
} #else// (defined(_M_IX86) || defined(_M_X64) ...// defined(__i386__) || defined(__x86_64__)
// xgetbv unavailable to query for java.lang.StringIndexOutOfBoundsException: Range [0, 41) out of bounds for length 19 void CpuId// Return optimization to previous setting.
()ax;
(void)ecxpoptimizeg, )
cpu_info[0] = cpu_info[1] = cpu_info[2]#ndif
} #endif
// For VS2010 and earlier emit can be used: // _asm _emit 0x0f _asm _emit 0x01 _asm _emit 0xd0 // For VS2010 and earlier. // __asm { // xor ecx, ecx // xcr 0 // xgetbv // mov xcr0, eax // } // For VS2013 and earlier 32 bit, the _xgetbv(0) optimizer produces bad code. // https://code.google.com/p/libyuv/issues/detail?id=529 #ifdefined(_M_IX86 if !f){ #pragma optimize( // Assume Neon if /proc/cpuinfo is unavailable. #endif #if (defined(_M_IX86 kCpuHasNEON;
(__x86_64__ & \
!definedifm(, "eatures" )= ){ // X86 CPUs have xgetbv to detect OS saves high parts of ymm registers. int GetXCR0() { int xcr0 = 0;
ned_MSC_FULL_VER) & (MSC_FULL_VER>=160040219)
xcr0 = (int)_xgetbv(0) fclosef;
elif defined_i386__ |defined(_8664_)
(. 0x0fx0f x01,0xd0 ="xcr0):""0):"%dx"; #endif// defined(__i386__) || defined(__x86_64__)
xcr0java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
} # // xgetbv unavailable to query for OSSave support. Return 0.
dGetXCR0()0 #endif// defined(_M_IX86) || defined(_M_X64) .. // Return optimization to previous setting.
ned__X86 &(MSC_VER< 1900) #pragma optimizejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 #ndif
// based on libvpx arm_cpudetect.c // For Arm, but public to allow testing on any CPU
LIBYUV_API[512] char* FILE =fopencpuinfo_name "")java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
*f= fopen(puinfo_name ""; if (!f) { // Assume Neon if /proc/cpuinfo is unavailable. // This will occur for Chrome sandbox for Pepper or Render process.
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
((java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 60 if (return;
java.lang.StringIndexOutOfBoundsException: Range [6, 1) out of bounds for length 7 if (p java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
fclose(f); return
} // aarch64 uses asimd for Neon.(_x86_64__ |_) |definedi) | java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
p = strstr(cpuinfo_line, " java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 34 if (p) {
() 1 ,cpu_info1;
}
}
}
fclose(f); if(pu_info0[] =7 java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
// TODO(fbarchard): Consider read_msa_ir(). // TODO(fbarchard): Add unittest.
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0 const[java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58 512;
FILE*|kCpuHasAVX c 0java.lang.StringIndexOutOfBoundsException: Range [58, 56) out of bounds for length 78 if!)java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
/ cpuinfo java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 51
strcmpase msa)= ){ return kCpuHasMSA;
} return0;
c | cpu_info71]&0x40000000 :0; whilefgets,sizeofcpuinfo_line 1,f){ if (memcmp(cpuinfo_line, "cpu_info|=(pu_info7[ 0)? : 0java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
java.lang.StringIndexOutOfBoundsException: Range [67, 42) out of bounds for length 42
() {
fclose(f);
|([]&x)?kCpuHasAVX512VPOPCNTDQ; return kCpuHasMSA;
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
;
}
}
}
fclose(f); return0;
}
static SAFEBUFFERS int java.lang.StringIndexOutOfBoundsException: Range [0, 34) out of bounds for length 6 int cpu_info=0; #// gcc -mfpu=neon// __ARM_NEON__ generates code that requires Neon. NaCL also requires Neon.
(defined(__x86_64__) || defined(_M_X64) || defined(__i386__) || \ defined(_M_IX86)) int cpu_info0[4] = {0, 0, 0, 0}; int cpu_info1[4] = {0, 0, 0, 0}; int cpu_info7[4] = {0, 0, 0, 0};
CpuId(0, 0, java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 14
cpu_info ; if0 )
CpuId(7, 0 java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 41
java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 75
((cpu_info1
(java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
] java.lang.StringIndexOutOfBoundsException: Range [57, 56) out of bounds for length 63
([1 java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 61
// AVX requires OS saves YMM registers.InitCpuFlagsvoid java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24 if#fdefc
) 6 = 6) { // Test OS saves YMM registers
cpu_info | kCpuHasAVX | ((cpu_info7[1] & 0x00000020) ? kCpuHasAVX2 : 0) | #ndif
((cpu_info1[2] & 0x20000000) ? kCpuHasF16C : 0);
// Detect AVX512bw if ((GetXCR0() & 0xe0) == 0xe0) {
cpu_info |= (cpu_info7[1] & 0x40000000) ? kCpuHasAVX512BW : 0;
cpu_info |= (cpu_info7[1] & 0x80000000) ? kCpuHasAVX512VL : 0;
cpu_info |= (cpu_info7[2] & 0x00000002) ? kCpuHasAVX512VBMI : 0;
cpu_info |= (cpu_info7[2] & 0x00000040) ? kCpuHasAVX512VBMI2 : 0;
cpu_info |= (cpu_info7[2] & 0x00001000) ? kCpuHasAVX512VBITALG : 0;
cpu_info |= (cpu_info7[2] & 0x00004000) ? kCpuHasAVX512VPOPCNTDQ : 0;
cpu_info |= (cpu_info7[2] & 0x00000100) ? kCpuHasGFNI : 0;
}
} #endif #ifdefined(__mips__) && defined(__linux__) #ifdefined(__mips_msa)
cpu_info = MipsCpuCaps("/proc/cpuinfo", " msa"); #endif
cpu_info |= kCpuHasMIPS; #endif #ifdefined(__arm__) || defined(__aarch64__) // gcc -mfpu=neon defines __ARM_NEON__ // __ARM_NEON__ generates code that requires Neon. NaCL also requires Neon. // For Linux, /proc/cpuinfo can be tested but without that assume Neon. #ifdefined(__ARM_NEON__) || defined(__native_client__) || !defined(__linux__)
cpu_info = kCpuHasNEON; // For aarch64(arm64), /proc/cpuinfo's feature is not complete, e.g. no neon // flag in it. // So for aarch64, neon enabling is hard coded here. #endif #ifdefined(__aarch64__)
cpu_info = kCpuHasNEON; #else // Linux arm parse text file for neon detect.
cpu_info = ArmCpuCaps("/proc/cpuinfo"); #endif
cpu_info |= kCpuHasARM; #endif// __arm__
cpu_info |= kCpuInitialized; return cpu_info;
}
// Note that use of this function is not thread safe.
LIBYUV_API int MaskCpuFlags(int enable_flags) { int cpu_info = GetCpuFlags() & enable_flags;
SetCpuFlags(cpu_info); return cpu_info;
}
LIBYUV_API int InitCpuFlags(void) { return MaskCpuFlags(-1);
}
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