48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
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// set by calling win32_get_performance_frequency()
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global s64 win32_performance_counter_freq_s64 = 0;
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global r64 win32_performance_counter_freq_r64 = 0;
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s64
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win32_get_performance_frequency()
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{
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LARGE_INTEGER freq;
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if (!QueryPerformanceFrequency(&freq))
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{
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win32_get_last_error();
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// TODO(Peter): I'm waiting to see an error actually occur here
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// to know what it could possibly be.
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invalid_code_path;
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}
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return (s64)freq.QuadPart;
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}
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void
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win32_time_init()
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{
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win32_performance_counter_freq_s64 = win32_get_performance_frequency();
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win32_performance_counter_freq_r64 = (r64)win32_performance_counter_freq_s64;
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}
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Platform_Ticks
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platform_get_ticks()
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{
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Platform_Ticks result = {};
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LARGE_INTEGER time;
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if (!QueryPerformanceCounter(&time))
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{
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win32_get_last_error();
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// TODO(Peter): I'm waiting to see an error actually occur here
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// to know what it could possibly be.
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invalid_code_path;
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}
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result.value = (s64)time.QuadPart;
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return result;
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}
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r64
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platform_ticks_to_seconds(Platform_Ticks ticks)
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{
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r64 result = (r64)ticks.value / win32_performance_counter_freq_r64;
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return result;
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}
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