84 lines
1.5 KiB
C
84 lines
1.5 KiB
C
#include <stdio.h>
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#include <math.h>
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#include <unistd.h>
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#include <time.h>
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#include <sys/time.h>
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#include <SDL/SDL.h>
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#include "Time.h"
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/////////////////////////////
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// Time_GetTime
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//
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// Gets the current time in usecs.
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/////////////////////////////
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// Time_Pause
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//
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// Pauses the execution for t usecs.
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#if WIN32
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#include <windows.h>
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// WIN32
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long long Time_GetTime(){
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LARGE_INTEGER freq;
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LARGE_INTEGER tim;
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long long int microt;
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QueryPerformanceFrequency(&freq);
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QueryPerformanceCounter(&tim);
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microt=(tim.QuadPart*1000000)/freq.QuadPart;
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return(microt);
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}
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void Time_Pause(int pausa){
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long long tend,t,diff;
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tend=Time_GetTime()+pausa;
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do{
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diff=tend-t;
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if(diff>1000){
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SDL_Delay(diff/1000);
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}else{
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Sleep(0);
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}
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t=Time_GetTime();
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}while(tend>=t);
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}
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#else
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#ifdef MACOSX
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#include <mach/mach_time.h>
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// MacOSX
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long long Time_GetTime(){
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static mach_timebase_info_data_t info = {0,0};
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uint64_t t;
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if(info.denom==0){
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mach_timebase_info(&info);
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}
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t=mach_absolute_time()*(info.numer / info.denom);
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return(t/1000);
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}
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void Time_Pause(int pausa){
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struct timeval tv;
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tv.tv_sec=(long long)pausa/1000000;
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tv.tv_usec=(long long)pausa%1000000;
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select(0, NULL, NULL, NULL, &tv);
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}
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#else
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// UNIX
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long long Time_GetTime(){
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struct timeval t;
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long long usecs;
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gettimeofday(&t,NULL);
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usecs=(t.tv_sec*1000000ll)+(t.tv_usec);
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return(usecs);
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}
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void Time_Pause(int pausa){
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struct timeval tv;
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tv.tv_sec=(long long)pausa/1000000;
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tv.tv_usec=(long long)pausa%1000000;
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select(0, NULL, NULL, NULL, &tv);
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}
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#endif // if MACOSX
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#endif // if WIN32
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