MUtilities/include/MUtils/CPUFeatures.h

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///////////////////////////////////////////////////////////////////////////////
// MuldeR's Utilities for Qt
// Copyright (C) 2004-2016 LoRd_MuldeR <MuldeR2@GMX.de>
//
// This library 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.
//
// This library 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 this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
// http://www.gnu.org/licenses/lgpl-2.1.txt
//////////////////////////////////////////////////////////////////////////////////
/**
* @file
* @brief This file contains function for detecting information about the CPU
*
* Call the MUtils::CPUFetaures::detect() to detect information about the processor, which will be returned in a `MUtils::CPUFetaures::cpu_info_t` struct.
*/
#pragma once
//MUtils
#include <MUtils/Global.h>
//Qt
#include <QStringList>
namespace MUtils
{
/**
* \brief This namespace contains functions and constants for detecting CPU information
*
* Call the detect() to detect information about the processor, which will be returned in a `cpu_info_t` struct.
*/
namespace CPUFetaures
{
// CPU vendor flag
static const quint8 VENDOR_INTEL = 0x01U; ///< \brief CPU vendor flag \details Indicates that the CPU's vendor is *Intel*
static const quint8 VENDOR_AMD = 0x02U; ///< \brief CPU vendor flag \details Indicates that the CPU's vendor is *AMD*
// CPU feature flag
static const quint32 FLAG_CMOV = 0x001U; ///< \brief CPU feature flag \details Indicates that the CPU supports the *CMOV* instruction
static const quint32 FLAG_MMX = 0x002U; ///< \brief CPU feature flag \details Indicates that the CPU supports the *MMX* instruction set extension
static const quint32 FLAG_SSE = 0x004U; ///< \brief CPU feature flag \details Indicates that the CPU supports the *SSE* instruction set extension
static const quint32 FLAG_SSE2 = 0x008U; ///< \brief CPU feature flag \details Indicates that the CPU supports the *SSE2* instruction set extension
static const quint32 FLAG_SSE3 = 0x010U; ///< \brief CPU feature flag \details Indicates that the CPU supports the *SSE3* instruction set extension
static const quint32 FLAG_SSSE3 = 0x020U; ///< \brief CPU feature flag \details Indicates that the CPU supports the *SSSE3* instruction set extension
static const quint32 FLAG_SSE4 = 0x030U; ///< \brief CPU feature flag \details Indicates that the CPU supports the *SSE4.1* instruction set extension
static const quint32 FLAG_SSE42 = 0x080U; ///< \brief CPU feature flag \details Indicates that the CPU supports the *SSE4.2* instruction set extension
static const quint32 FLAG_AVX = 0x100U; ///< \brief CPU feature flag \details Indicates that the CPU supports the *AVX* instruction set extension
/**
* \brief Struct to hold information about the CPU. See `_cpu_info_t` for details!
*/
typedef struct _cpu_info_t
{
quint32 family; ///< CPU *family* indicator, which specifies the processor "generation" to which the CPU belongs
quint32 model; ///< CPU *model* indicator, which is used to distinguish processor "variants" within a generation
quint32 stepping; ///< CPU *stepping* indicator, which is used to distinguish "revisions" of a certain processor model
quint32 count; ///< The number of available (logical) processors
quint32 features; ///< CPU *feature* flags, indicating suppoprt for extended instruction sets; all flags are OR-combined
bool x64; ///< Indicates that the processor and the operating system support 64-Bit (AMD64/EM64T)
quint8 vendor; ///< CPU *vendor* flag; might be zero, if vendor is unknown
char idstr[13]; ///< CPU *identifier* string, exactly 12 characters (e.g. "GenuineIntel" or "AuthenticAMD")
char brand[48]; ///< CPU *brand* string, up to 48 characters (e.g. "Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz")
}
cpu_info_t;
/**
* \brief Detect processor information
*
* Detects information about the CPU on which the application is running, including CPU vendor, identifier string, feature flags (MMX, SSE, AVX, etc) as well as the CPU core count.
*
* \return The function returns a `cpu_info_t` struct containing the detected information about the CPU.
*/
MUTILS_API cpu_info_t detect(void);
}
}