42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
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// File: timer.h
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// A simple high-precision, platform independent timer class.
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#pragma once
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typedef unsigned long long timer_ticks;
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class timer
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{
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public:
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timer();
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timer(timer_ticks start_ticks);
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void start();
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void start(timer_ticks start_ticks);
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void stop();
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double get_elapsed_secs() const;
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inline double get_elapsed_ms() const { return get_elapsed_secs() * 1000.0f; }
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timer_ticks get_elapsed_us() const;
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static void init();
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static inline timer_ticks get_ticks_per_sec() { return g_freq; }
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static timer_ticks get_init_ticks();
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static timer_ticks get_ticks();
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static double ticks_to_secs(timer_ticks ticks);
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static inline double ticks_to_ms(timer_ticks ticks) { return ticks_to_secs(ticks) * 1000.0f; }
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static inline double get_secs() { return ticks_to_secs(get_ticks()); }
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static inline double get_ms() { return ticks_to_ms(get_ticks()); }
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private:
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static timer_ticks g_init_ticks;
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static timer_ticks g_freq;
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static double g_inv_freq;
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timer_ticks m_start_time;
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timer_ticks m_stop_time;
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bool m_started : 1;
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bool m_stopped : 1;
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};
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