@FDK10プロジェクト/CTimer.cpp

   1 #include "stdafx.h"\r
   2 #include "CTimer.h"\r
   3 \r
   4 namespace FDK {\r
   5         namespace General {\r
   6 \r
   7 // static \83\81\83\93\83o\r
   8 int                                     CTimer::nRefCount = 0;\r
   9 int                                     CTimer::timerType = TIMERTYPE_GETTICKCOUNT;\r
  10 TIMECAPS                        CTimer::dwTimeCaps;\r
  11 LARGE_INTEGER           CTimer::liFrequency;\r
  12 //double                                CTimerEx::dbTimeGetTime = 0;\r
  13 \r
  14 void    CTimer::Init( int timerType )\r
  15 {\r
  16         // \8dÅ\8f\89\82Ì\83C\83\93\83X\83^\83\93\83X\82È\82ç\81A\91S\83C\83\93\83X\83^\83\93\83X\8b¤\92Ê\82Ì\8f\89\8aú\89»\82ð\8ds\82¤\81B\r
  17         if( this->nRefCount == 0 )\r
  18         {\r
  19                 // \8eg\97p\82·\82é\83^\83C\83}\82ð\8c\88\92è\82·\82é\r
  20                 switch( timerType )\r
  21                 {\r
  22                 // \82`\81D\8d\82\90¸\93x\83^\83C\83}\r
  23                 // \82c\81D\96¢\92è\8b`\r
  24                 case TIMERTYPE_PERFORMANCECOUNTER:\r
  25                 case TIMERTYPE_UNKNOWN:\r
  26                         if( CheckAndSetA_HighPerformanceTimer() ) break;\r
  27                         if( CheckAndSetB_MultimediaTimer() ) break;\r
  28                         SetC_OldTimer();\r
  29                         break;\r
  30 \r
  31                 // \82a\81D\83}\83\8b\83`\83\81\83f\83B\83A\83^\83C\83}\r
  32                 case TIMERTYPE_TIMEGTTIME:\r
  33                         if( CheckAndSetB_MultimediaTimer() ) break;\r
  34                         if( CheckAndSetA_HighPerformanceTimer() ) break;\r
  35                         SetC_OldTimer();\r
  36                         break;\r
  37 \r
  38                 // \82»\82Ì\91¼\81D\8b\8c\8e®\83^\83C\83}\r
  39                 default:\r
  40                         SetC_OldTimer();\r
  41                         break;\r
  42                 }\r
  43         }\r
  44 \r
  45         Reset();                // \83^\83C\83}\83\8a\83Z\83b\83g\r
  46         this->nRefCount++;      // \8eQ\8fÆ\83J\83E\83\93\83g\91\9d\89Á\r
  47 }\r
  48 \r
  49 bool    CTimer::CheckAndSetA_HighPerformanceTimer()\r
  50 {\r
  51         if( ::QueryPerformanceFrequency( &liFrequency ) )\r
  52         {\r
  53                 CTimer::timerType = TIMERTYPE_PERFORMANCECOUNTER;\r
  54                 return true;\r
  55         }\r
  56         return false;\r
  57 }\r
  58 \r
  59 bool    CTimer::CheckAndSetB_MultimediaTimer()\r
  60 {\r
  61         if( ::timeGetDevCaps( &dwTimeCaps, sizeof( TIMECAPS ) ) == TIMERR_NOERROR && dwTimeCaps.wPeriodMin < 10 )\r
  62         {\r
  63                 CTimer::timerType = TIMERTYPE_TIMEGTTIME;\r
  64                 ::timeBeginPeriod( dwTimeCaps.wPeriodMin );\r
  65                 return true;\r
  66         }\r
  67         return false;\r
  68 }\r
  69 \r
  70 bool    CTimer::SetC_OldTimer()\r
  71 {\r
  72         CTimer::timerType = TIMERTYPE_GETTICKCOUNT;\r
  73         dwTimeCaps.wPeriodMax = 1;      // \90¸\93x1ms\81i\82Ì\82Â\82à\82è\82É\82È\82é\81j\r
  74         return true;\r
  75 }\r
  76 \r
  77 void    CTimer::Term()\r
  78 {\r
  79         // \8eQ\8fÆ\83J\83E\83\93\83g\8c¸\8f\r
  80         this->nRefCount --;\r
  81 \r
  82         // \83C\83\93\83X\83^\83\93\83X\82ª\82È\82\82È\82Á\82½\82ç\8fI\97¹\8f\88\97\9d\r
  83         if( this->nRefCount == 0 )\r
  84         {\r
  85                 if( this->timerType == TIMERTYPE_TIMEGTTIME )\r
  86                         ::timeEndPeriod( this->dwTimeCaps.wPeriodMin );\r
  87         }\r
  88 }\r
  89 \r
  90 void    CTimer::Reset()\r
  91 {\r
  92         this->dbOffsetTime = this->dbPauseTime = GetTime();\r
  93         this->nPaused = 0;\r
  94 }\r
  95 \r
  96 double  CTimer::Get()\r
  97 {\r
  98         return ( this->nPaused > 0 ) ? (this->dbPauseTime - this->dbOffsetTime) : (GetTime() - this->dbOffsetTime);\r
  99 }\r
 100 \r
 101 void    CTimer::Set( double dbTime )\r
 102 {\r
 103         this->dbOffsetTime = ( this->nPaused > 0 ) ? (this->dbPauseTime - dbTime) : (GetTime() - dbTime);\r
 104 }\r
 105 \r
 106 void    CTimer::Pause()\r
 107 {\r
 108         if ( this->nPaused++ == 0 )\r
 109                 this->dbPauseTime = GetTime();\r
 110 }\r
 111 \r
 112 void    CTimer::Restart()\r
 113 {\r
 114         if ( --this->nPaused == 0)\r
 115                 this->dbOffsetTime += GetTime() - this->dbPauseTime;\r
 116 }\r
 117 \r
 118 double  CTimer::GetTime()\r
 119 {\r
 120         switch( CTimer::timerType )\r
 121         {\r
 122         case TIMERTYPE_GETTICKCOUNT:\r
 123                 return (double) ::GetTickCount();\r
 124 \r
 125         case TIMERTYPE_TIMEGTTIME:\r
 126                 return (double) ::timeGetTime();\r
 127 \r
 128         case TIMERTYPE_PERFORMANCECOUNTER:\r
 129                 {\r
 130                         double dbNow = 0.0;\r
 131                         if( liFrequency.QuadPart != 0 )\r
 132                         {\r
 133                                 LARGE_INTEGER liNowTime;\r
 134                                 ::QueryPerformanceCounter( &liNowTime );\r
 135                                 dbNow = liNowTime.QuadPart / ( liFrequency.QuadPart / 1000.0 );\r
 136                         }\r
 137                         return dbNow;\r
 138                 }\r
 139         }\r
 140         return 0.0;\r
 141 }\r
 142 \r
 143         }//General\r
 144 }//FDK