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 #pragma off (unreferenced)
  16 static char rcsid[] = "$Id: timer.c,v 1.1.1.1 2001-01-19 03:30:15 bradleyb Exp $";
  17 #pragma on (unreferenced)
  18
  19 #include "types.h"
  20 #include "fix.h"
  21 #include "error.h"
  22 #include "mono.h"
  23
  24 #define _WIN32
  25 #define WIN32_LEAN_AND_MEAN
  26 #include<windows.h>
  27 #include<mmsystem.h>
  28
  29 #define TARGET_RESOLUTION 1
  30
  31 //@@ static UINT TimerResolution = 0;
  32 //@@ static UINT GameTimer = 0;
  33 //@@ #define GAME_TIMER_RESOLUTION (TimerResolution<<1)
  34
  35
  36 int timer_initialized=0;
  37
  38 static UINT GameSystemTime = 0;
  39 static UINT GameStartTime = 0;
  40
  41
  42 void timer_normalize();
  43
  44 //@@ void PASCAL timer_callback(UINT wTimerID, UINT msg, DWORD dwUser,
  45 //@@                                    DWORD dw1, DWORD dw2)
  46 //@@{
  47 //@@    static int last_time = 0;
  48 //@@    UINT time;
  49 //@@
  50 //@@
  51 //@@    time = timeGetTime()-GameStartTime;
  52 //@@
  53 //@@    if (timeGetTime() < GameStartTime)
  54 //@@            GameStartTime = GameStartTime - timeGetTime();
  55 //@@
  56 //@@}
  57
  58 void timer_normalize()
  59 {
  60         DWORD new_time;
  61
  62         new_time = timeGetTime();
  63
  64         if (new_time < GameStartTime) {
  65                 GameStartTime = new_time;
  66                 return;
  67         }
  68
  69         if ((new_time - GameStartTime) > 0x01808580)    // 7 hours
  70                 GameStartTime = new_time;
  71 }
  72
  73
  74 void timer_close();
  75
  76 void timer_init(int i)
  77 {
  78         TIMECAPS tc;
  79
  80         Assert(GameStartTime == 0);
  81
  82         timer_initialized = 1;
  83
  84         GameSystemTime = 0;
  85         GameStartTime = timeGetTime();
  86
  87         atexit(timer_close);
  88 }
  89
  90
  91 void timer_close()
  92 {
  93         Assert(GameStartTime > 0);
  94
  95         timer_initialized = 0;
  96
  97         GameSystemTime = 0;
  98         GameStartTime= 0;
  99 }
 100
 101
 102 fix timer_get_fixed_seconds()
 103 {
 104         fix val;
 105         DWORD time;
 106
 107         timer_normalize();
 108
 109         time = timeGetTime() - GameStartTime;
 110
 111         val = fixdiv(time,1000);
 112
 113         return val;
 114 }
 115
 116 fix timer_get_fixed_secondsX()
 117 {
 118         fix val;
 119         DWORD time;
 120
 121         timer_normalize();
 122
 123         time = timeGetTime() - GameStartTime;
 124
 125         val = fixdiv(time,1000);
 126
 127         return val;
 128 }
 129
 130 fix timer_get_approx_seconds()
 131 {
 132         fix val;
 133         DWORD time;
 134
 135         timer_normalize();
 136
 137         time = timeGetTime() - GameStartTime;
 138
 139         val = fixdiv(time,1000);
 140
 141         return val;
 142 }
 143
 144 void timer_set_function( void _far * function ) {}
 145
 146
 147 void timer_delay(fix seconds)
 148 {
 149         unsigned int numticks = timeGetTime() + (seconds>>16)*1000 +
 150                                         (((seconds & 0x0000ffff)*1000)/65535);
 151         while (GetTickCount() < numticks);
 152 }