unused/win95/timer.c

   1 /*
   2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   3 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   6 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   8 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
   9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  11 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  12 */
  13
  14
  15 #include "types.h"
  16 #include "fix.h"
  17 #include "error.h"
  18 #include "mono.h"
  19
  20 #define _WIN32
  21 #define WIN32_LEAN_AND_MEAN
  22 #include<windows.h>
  23 #include<mmsystem.h>
  24
  25 #define TARGET_RESOLUTION 1
  26
  27 //@@ static UINT TimerResolution = 0;
  28 //@@ static UINT GameTimer = 0;
  29 //@@ #define GAME_TIMER_RESOLUTION (TimerResolution<<1)
  30
  31
  32 int timer_initialized=0;
  33
  34 static UINT GameSystemTime = 0;
  35 static UINT GameStartTime = 0;
  36
  37
  38 void timer_normalize();
  39
  40 //@@ void PASCAL timer_callback(UINT wTimerID, UINT msg, DWORD dwUser,
  41 //@@                                    DWORD dw1, DWORD dw2)
  42 //@@{
  43 //@@    static int last_time = 0;
  44 //@@    UINT time;
  45 //@@
  46 //@@
  47 //@@    time = timeGetTime()-GameStartTime;
  48 //@@
  49 //@@    if (timeGetTime() < GameStartTime)
  50 //@@            GameStartTime = GameStartTime - timeGetTime();
  51 //@@
  52 //@@}
  53
  54 void timer_normalize()
  55 {
  56         DWORD new_time;
  57
  58         new_time = timeGetTime();
  59
  60         if (new_time < GameStartTime) {
  61                 GameStartTime = new_time;
  62                 return;
  63         }
  64
  65         if ((new_time - GameStartTime) > 0x01808580)    // 7 hours
  66                 GameStartTime = new_time;
  67 }
  68
  69
  70 void timer_close();
  71
  72 void timer_init(int i)
  73 {
  74         TIMECAPS tc;
  75
  76         Assert(GameStartTime == 0);
  77
  78         timer_initialized = 1;
  79
  80         GameSystemTime = 0;
  81         GameStartTime = timeGetTime();
  82
  83         atexit(timer_close);
  84 }
  85
  86
  87 void timer_close()
  88 {
  89         Assert(GameStartTime > 0);
  90
  91         timer_initialized = 0;
  92
  93         GameSystemTime = 0;
  94         GameStartTime= 0;
  95 }
  96
  97
  98 fix timer_get_fixed_seconds()
  99 {
 100         fix val;
 101         DWORD time;
 102
 103         timer_normalize();
 104
 105         time = timeGetTime() - GameStartTime;
 106
 107         val = fixdiv(time,1000);
 108
 109         return val;
 110 }
 111
 112 fix timer_get_fixed_secondsX()
 113 {
 114         fix val;
 115         DWORD time;
 116
 117         timer_normalize();
 118
 119         time = timeGetTime() - GameStartTime;
 120
 121         val = fixdiv(time,1000);
 122
 123         return val;
 124 }
 125
 126 fix timer_get_approx_seconds()
 127 {
 128         fix val;
 129         DWORD time;
 130
 131         timer_normalize();
 132
 133         time = timeGetTime() - GameStartTime;
 134
 135         val = fixdiv(time,1000);
 136
 137         return val;
 138 }
 139
 140 void timer_set_function( void _far * function ) {}
 141
 142
 143 void timer_delay(fix seconds)
 144 {
 145         unsigned int numticks = timeGetTime() + (seconds>>16)*1000 +
 146                                         (((seconds & 0x0000ffff)*1000)/65535);
 147         while (GetTickCount() < numticks);
 148 }