Initial commit

source/lib/Core/src/Timer.cpp

@@ -0,0 +1,106 @@
+#include "Kyty/Core/Timer.h"
+
+#include "Kyty/Core/DbgAssert.h"
+#include "Kyty/Sys/SysTimer.h"
+
+namespace Kyty::Core {
+
+Timer::Timer() noexcept
+{
+	sys_query_performance_frequency(&m_Frequency);
+}
+
+void Timer::Start()
+{
+	sys_query_performance_counter(&m_StartTime);
+	m_is_paused = false;
+}
+
+void Timer::Pause()
+{
+	EXIT_IF(m_is_paused);
+
+	sys_query_performance_counter(&m_PauseTime);
+	m_is_paused = true;
+}
+
+void Timer::Resume()
+{
+	EXIT_IF(!m_is_paused);
+
+	uint64_t current_time = 0;
+	sys_query_performance_counter(&current_time);
+
+	m_StartTime += current_time - m_PauseTime;
+
+	m_is_paused = false;
+}
+
+bool Timer::IsPaused() const
+{
+	return m_is_paused;
+}
+
+// return time in milliseconds
+double Timer::GetTimeMs() const
+{
+	if (m_is_paused)
+	{
+		return 1000.0 * (static_cast<double>(m_PauseTime - m_StartTime)) / static_cast<double>(m_Frequency);
+	}
+
+	uint64_t current_time = 0;
+	sys_query_performance_counter(&current_time);
+
+	return 1000.0 * (static_cast<double>(current_time - m_StartTime)) / static_cast<double>(m_Frequency);
+}
+
+// return time in seconds
+double Timer::GetTimeS() const
+{
+	if (m_is_paused)
+	{
+		return (static_cast<double>(m_PauseTime - m_StartTime)) / static_cast<double>(m_Frequency);
+	}
+
+	uint64_t current_time = 0;
+	sys_query_performance_counter(&current_time);
+
+	return (static_cast<double>(current_time - m_StartTime)) / static_cast<double>(m_Frequency);
+}
+
+// return time in ticks
+uint64_t Timer::GetTicks() const
+{
+	if (m_is_paused)
+	{
+		return (m_PauseTime - m_StartTime);
+	}
+
+	uint64_t current_time = 0;
+	sys_query_performance_counter(&current_time);
+
+	return (current_time - m_StartTime);
+}
+
+// return ticks frequency
+uint64_t Timer::GetFrequency() const
+{
+	return m_Frequency;
+}
+
+uint64_t Timer::QueryPerformanceFrequency()
+{
+	uint64_t ret = 0;
+	sys_query_performance_frequency(&ret);
+	return ret;
+}
+
+uint64_t Timer::QueryPerformanceCounter()
+{
+	uint64_t ret = 0;
+	sys_query_performance_counter(&ret);
+	return ret;
+}
+
+} // namespace Kyty::Core