winCPUInfo.cpp

Public Functions

void

PlatformBlitInit()

void

SetProcessorInfo(Platform::SystemInfo_struct::Processor & pInfo, char * vendor, U32 processor, U32 properties, U32 properties2)

Public Functions

PlatformBlitInit()

SetProcessorInfo(Platform::SystemInfo_struct::Processor & pInfo, char * vendor, U32 processor, U32 properties, U32 properties2)

  1
  2//-----------------------------------------------------------------------------
  3// Copyright (c) 2012 GarageGames, LLC
  4//
  5// Permission is hereby granted, free of charge, to any person obtaining a copy
  6// of this software and associated documentation files (the "Software"), to
  7// deal in the Software without restriction, including without limitation the
  8// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  9// sell copies of the Software, and to permit persons to whom the Software is
 10// furnished to do so, subject to the following conditions:
 11//
 12// The above copyright notice and this permission notice shall be included in
 13// all copies or substantial portions of the Software.
 14//
 15// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 18// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 20// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 21// IN THE SOFTWARE.
 22//-----------------------------------------------------------------------------
 23
 24#include "platform/platform.h"
 25#include "platformWin32/platformWin32.h"
 26#include "console/console.h"
 27#include "core/stringTable.h"
 28#include <math.h>
 29#include <intrin.h>
 30
 31Platform::SystemInfo_struct Platform::SystemInfo;
 32extern void PlatformBlitInit();
 33extern void SetProcessorInfo(Platform::SystemInfo_struct::Processor& pInfo,
 34   char* vendor, U32 processor, U32 properties, U32 properties2); // platform/platformCPU.cc
 35
 36void Processor::init()
 37{
 38   // Reference:
 39   //    www.cyrix.com
 40   //    www.amd.com
 41   //    www.intel.com
 42   //       http://developer.intel.com/design/PentiumII/manuals/24512701.pdf
 43
 44   Con::printf("Processor Init:");
 45
 46   Platform::SystemInfo.processor.type = CPU_X86Compatible;
 47   Platform::SystemInfo.processor.name = StringTable->insert("Unknown x86 Compatible");
 48   Platform::SystemInfo.processor.mhz  = 0;
 49   Platform::SystemInfo.processor.properties = CPU_PROP_C | CPU_PROP_LE;
 50
 51   char  vendor[0x20];
 52   dMemset(vendor, 0, sizeof(vendor));
 53   U32   properties = 0;
 54   U32   processor  = 0;
 55   U32   properties2 = 0;
 56
 57   S32 vendorInfo[4];
 58   __cpuid(vendorInfo, 0);
 59   *reinterpret_cast<int*>(vendor) = vendorInfo[1];     // ebx
 60   *reinterpret_cast<int*>(vendor + 4) = vendorInfo[3]; // edx
 61   *reinterpret_cast<int*>(vendor + 8) = vendorInfo[2]; // ecx
 62
 63   S32 cpuInfo[4];
 64   __cpuid(cpuInfo, 1);
 65   processor = cpuInfo[0];   // eax
 66   properties = cpuInfo[3];  // edx
 67   properties2 = cpuInfo[2]; // ecx
 68
 69   SetProcessorInfo(Platform::SystemInfo.processor, vendor, processor, properties, properties2);
 70
 71// now calculate speed of processor...
 72   U32 nearmhz = 0; // nearest rounded mhz
 73   U32 mhz = 0; // calculated value.
 74
 75   LONG result;
 76   DWORD data = 0;
 77   DWORD dataSize = 4;
 78   HKEY hKey;
 79
 80   result = ::RegOpenKeyExA (HKEY_LOCAL_MACHINE,"Hardware\\Description\\System\\CentralProcessor\\0", 0, KEY_QUERY_VALUE, &hKey);
 81
 82   if (result == ERROR_SUCCESS)
 83   {
 84      result = ::RegQueryValueExA (hKey, "~MHz",NULL, NULL,(LPBYTE)&data, &dataSize);
 85
 86      if (result == ERROR_SUCCESS)
 87         nearmhz = mhz = data;
 88
 89      ::RegCloseKey(hKey);
 90   }
 91
 92   Platform::SystemInfo.processor.mhz = mhz;
 93
 94   if (mhz==0)
 95   {
 96      Con::printf("   %s, (Unknown) Mhz", Platform::SystemInfo.processor.name);
 97      // stick SOMETHING in so it isn't ZERO.
 98      Platform::SystemInfo.processor.mhz = 200; // seems a decent value.
 99   }
100   else
101   {
102      if (nearmhz >= 1000)
103         Con::printf("   %s, ~%.2f Ghz", Platform::SystemInfo.processor.name, ((float)nearmhz)/1000.0f);
104      else
105         Con::printf("   %s, ~%d Mhz", Platform::SystemInfo.processor.name, nearmhz);
106      if (nearmhz != mhz)
107      {
108         if (mhz >= 1000)
109            Con::printf("     (timed at roughly %.2f Ghz)", ((float)mhz)/1000.0f);
110         else
111            Con::printf("     (timed at roughly %d Mhz)", mhz);
112      }
113   }
114
115   if( Platform::SystemInfo.processor.numAvailableCores > 0
116       || Platform::SystemInfo.processor.numPhysicalProcessors > 0
117       || Platform::SystemInfo.processor.isHyperThreaded )
118      Platform::SystemInfo.processor.properties |= CPU_PROP_MP;
119
120   if (Platform::SystemInfo.processor.properties & CPU_PROP_FPU)
121      Con::printf( "   FPU detected" );
122   if (Platform::SystemInfo.processor.properties & CPU_PROP_MMX)
123      Con::printf( "   MMX detected" );
124   if (Platform::SystemInfo.processor.properties & CPU_PROP_3DNOW)
125      Con::printf( "   3DNow detected" );
126   if (Platform::SystemInfo.processor.properties & CPU_PROP_SSE)
127      Con::printf( "   SSE detected" );
128   if( Platform::SystemInfo.processor.properties & CPU_PROP_SSE2 )
129      Con::printf( "   SSE2 detected" );
130   if( Platform::SystemInfo.processor.isHyperThreaded )
131      Con::printf( "   HT detected" );
132   if( Platform::SystemInfo.processor.properties & CPU_PROP_MP )
133      Con::printf( "   MP detected [%i cores, %i logical, %i physical]",
134         Platform::SystemInfo.processor.numAvailableCores,
135         Platform::SystemInfo.processor.numLogicalProcessors,
136         Platform::SystemInfo.processor.numPhysicalProcessors );
137   Con::printf(" ");
138   
139   PlatformBlitInit();
140}
141