1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
// File: timer.h
// A simple high-precision, platform independent timer class.
#pragma once
typedef unsigned long long timer_ticks;
class timer {
public:
timer();
timer(timer_ticks start_ticks);
void start();
void start(timer_ticks start_ticks);
void stop();
double get_elapsed_secs() const;
inline double get_elapsed_ms() const { return get_elapsed_secs() * 1000.0f; }
timer_ticks get_elapsed_us() const;
static void init();
static inline timer_ticks get_ticks_per_sec() { return g_freq; }
static timer_ticks get_init_ticks();
static timer_ticks get_ticks();
static double ticks_to_secs(timer_ticks ticks);
static inline double ticks_to_ms(timer_ticks ticks) { return ticks_to_secs(ticks) * 1000.0f; }
static inline double get_secs() { return ticks_to_secs(get_ticks()); }
static inline double get_ms() { return ticks_to_ms(get_ticks()); }
private:
static timer_ticks g_init_ticks;
static timer_ticks g_freq;
static double g_inv_freq;
timer_ticks m_start_time;
timer_ticks m_stop_time;
bool m_started : 1;
bool m_stopped : 1;
};
|
