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/*
* (C) 2006-2012 see Authors.txt
*
* This file is part of MPC-HC.
*
* MPC-HC is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* MPC-HC 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "stdafx.h"
#include <intrin.h>
#include "CpuId.h"
#define CPUID_MMX (1 << 23)
#define CPUID_SSE (1 << 25)
#define CPUID_SSE2 (1 << 26)
#define CPUID_SSE3 (1 << 0)
// Intel specific
#define CPUID_SSSE3 (1 << 9)
// AMD specific
#define CPUID_3DNOW (1 << 31)
#define CPUID_MMXEXT (1 << 22)
CCpuId::CCpuId()
{
unsigned nHighestFeature;
unsigned nHighestFeatureEx;
int nBuff[4];
char szMan[13];
// Get CPU manufacturer and highest CPUID
__cpuid(nBuff, 0);
nHighestFeature = (unsigned)nBuff[0];
*(int*)&szMan[0] = nBuff[1];
*(int*)&szMan[4] = nBuff[3];
*(int*)&szMan[8] = nBuff[2];
szMan[12] = 0;
if (strcmp(szMan, "AuthenticAMD") == 0) {
m_nType = PROCESSOR_AMD;
} else if (strcmp(szMan, "GenuineIntel") == 0) {
m_nType = PROCESSOR_INTEL;
} else {
m_nType = PROCESSOR_UNKNOWN;
}
// Get highest extended feature
__cpuid(nBuff, 0x80000000);
nHighestFeatureEx = (unsigned)nBuff[0];
// Get CPU features
m_nCPUFeatures = 0;
if (nHighestFeature >= 1) {
__cpuid(nBuff, 1);
if (nBuff[3] & CPUID_MMX) {
m_nCPUFeatures |= MPC_MM_MMX;
}
if (nBuff[3] & CPUID_SSE) {
m_nCPUFeatures |= MPC_MM_SSE;
}
if (nBuff[3] & CPUID_SSE2) {
m_nCPUFeatures |= MPC_MM_SSE2;
}
if (nBuff[2] & CPUID_SSE3) {
m_nCPUFeatures |= MPC_MM_SSE3;
}
// Intel specific
if (m_nType == PROCESSOR_INTEL) {
if (nBuff[2] & CPUID_SSSE3) {
m_nCPUFeatures |= MPC_MM_SSSE3;
}
}
}
// AMD specific
if (m_nType == PROCESSOR_AMD) {
// Get extended features
__cpuid(nBuff, 0x80000000);
if (nHighestFeatureEx >= 0x80000001) {
__cpuid(nBuff, 0x80000001);
if (nBuff[3] & CPUID_3DNOW) {
m_nCPUFeatures |= MPC_MM_3DNOW;
}
if (nBuff[3] & CPUID_MMXEXT) {
m_nCPUFeatures |= MPC_MM_MMXEXT;
}
}
}
}
int CCpuId::GetProcessorNumber()
{
SYSTEM_INFO SystemInfo;
GetSystemInfo(&SystemInfo);
return SystemInfo.dwNumberOfProcessors;
}
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