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Diffstat (limited to 'dxr3cpu.h')
| -rw-r--r-- | dxr3cpu.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/dxr3cpu.h b/dxr3cpu.h new file mode 100644 index 0000000..b18f510 --- /dev/null +++ b/dxr3cpu.h @@ -0,0 +1,107 @@ +/* + * 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, + CC_3DNOW = 0x40000000, + CC_MMXEXT = 0x20000000, + CC_SSE = 0x10000000, + CC_SSE2 = 0x08000000 +}; + +// ================================== +// 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]; + + 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_*/ |