OpenGL/include/cr_timer.h

#ifndef CR_TIMER_H
#define CR_TIMER_H

#ifndef WINDOWS
#include <sys/time.h>

#if defined (IRIX) || defined( IRIX64 )
typedef unsigned long long iotimer64_t;
typedef unsigned int iotimer32_t;
#endif
#else
#include <windows.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif

typedef struct Timer
{
    double time0, elapsed;
    char running;

    int fd;
#if defined (IRIX) || defined( IRIX64 )
    unsigned long long counter64;
    unsigned int counter32;
    unsigned int cycleval;

    volatile iotimer64_t *iotimer_addr64;
    volatile iotimer32_t *iotimer_addr32;

    void *unmapLocation;
    int unmapSize;
#elif defined(WINDOWS)
    LARGE_INTEGER performance_counter, performance_frequency;
    double one_over_frequency;
#elif defined( Linux ) || defined( FreeBSD ) || defined(DARWIN) || defined(AIX) || defined (SunOS) || defined(OSF1)
    struct timeval timeofday;
#endif
} CRTimer;

CRTimer *crTimerNewTimer( void );
void crDestroyTimer( CRTimer *t );
void crStartTimer( CRTimer *t );
void crStopTimer( CRTimer *t );
void crResetTimer( CRTimer *t );
double crTimerTime( CRTimer *t );

#ifdef __cplusplus
}
#endif

#endif /* CR_TIMER_H */