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/*
* dxr3cpu.h
*
* Copyright (C) 2004 Christian Gmeiner
*
* Taken (modifized) from Nesseia-Renderengine Copyright (C) 2003-2004 Christian Gmeiner
*
* This program 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 program 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 Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef _DXR3_CPU_H_
#define _DXR3_CPU_H_
#include <inttypes.h>
#include "dxr3singleton.h"
// ==================================
//! all possible cabs
enum Cpu_cabs
{
CC_MMX = 0x80000000, ///< Value for mmx
CC_3DNOW = 0x40000000, ///< Value for 3dnow
CC_MMXEXT = 0x20000000, ///< Value for mmx ext
CC_SSE = 0x10000000, ///< Value for sse
CC_SSE2 = 0x08000000 ///< Value for sse2
};
// ==================================
//! easy and fast access to all infos
struct CPUInformation
{
CPUInformation()
{
AMD = false;
INTEL = false;
MMX = false;
MMXEXT = false;
SSE = false;
SSE2 = false;
Now = false;
RDTSC = false;
HT = false;
AMD64Bit = false;
}
char Vendor[16]; ///< vendorname
bool AMD; ///< is it an AMD CPU?
bool INTEL; ///< is it an Intel CPU?
bool MMX; ///< is MMX-Technology supported?
bool MMXEXT; ///< are Extended MMX_MultimediaExtensions supported?
bool SSE; ///< is SSE-Technology supported?
bool SSE2; ///< is SSE2-Technology supported?
bool Now; ///< is 3DNow-Technology supported?
bool RDTSC; ///< is RDTSC-Technology supported?
bool HT; ///< is HyperThreading supported?
bool AMD64Bit; ///< is it a 64 bit machine?
uint32_t caps; ///< all features represanted as caps
};
// ==================================
//! Grab some infos about the cpu(s)
/*!
If you want to know what the cpu of the
target machine can do, this class is for you :)
It is used intern for the math and memcpy part.
*/
class cDxr3CPU : public Singleton<cDxr3CPU>
{
public:
cDxr3CPU();
~cDxr3CPU() {}
bool HasMMXSupport() const { return m_Info.MMX; }
bool HasSSESupport() const { return m_Info.SSE; }
bool HasSSE2Support() const { return m_Info.SSE2; }
bool Has3DNowSupport() const { return m_Info.Now; }
bool HasRDTSCSupport() const { return m_Info.RDTSC; }
bool HasHTSupport() const { return m_Info.HT; }
inline CPUInformation GetInfos() const { return m_Info ;}
private:
bool CheckCPUIDPresence();
// main function to get cpu(s) features
bool cpuid(unsigned long function, unsigned long& out_eax, unsigned long& out_ebx, unsigned long& out_ecx, unsigned long& out_edx);
CPUInformation m_Info;
};
#endif /*_DXR3_CPU_H_*/
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