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engine/enginestats.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "quakedef.h"
+#include "enginestats.h"
+#include "basetypes.h"
+#include "clientstats.h"
+#include "limits.h"
+#include "sysexternal.h"
+#include "gl_matsysiface.h"
+#include "filesystem_engine.h"
+#include "tier0/vprof.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+//-----------------------------------------------------------------------------
+// itty bitty interface for stat time
+//-----------------------------------------------------------------------------
+
+class CStatTime : public IClientStatsTime
+{
+public:
+	float GetTime()
+	{
+		return Sys_FloatTime();
+	}
+};
+
+CStatTime	g_StatTime;
+
+
+CEngineStats::CEngineStats() : m_InFrame( false )
+{
+	m_bInRun = false;
+}
+
+void CEngineStats::BeginRun( void )
+{
+	m_bInRun = true;
+	m_totalNumFrames = 0;
+
+	// frame timing data
+	m_runStartTime = Sys_FloatTime();
+}
+
+
+void CEngineStats::EndRun( void )
+{
+	m_runEndTime = Sys_FloatTime();
+	m_bInRun = false;
+}
+
+void CEngineStats::BeginFrame( void )
+{
+	m_bPaused = false;
+	m_InFrame = false;
+}
+
+
+void CEngineStats::ComputeFrameTimeStats( void )
+{
+	m_StatGroup.m_StatFrameTime[ENGINE_STATS_FRAME_TIME] = m_flFrameTime / 1000.0f;
+	m_StatGroup.m_StatFrameTime[ENGINE_STATS_FPS_VARIABILITY] = m_flFPSVariability / 1000.0f;
+	m_StatGroup.m_StatFrameTime[ENGINE_STATS_FPS] = (m_flFrameTime != 0.0f) ? ( 1.0f / (1000.0f * m_flFrameTime) ) : 0.0f;
+}
+
+
+void CEngineStats::EndFrame( void )
+{
+	if (!m_InFrame)
+		return;
+}
+
+
+//-----------------------------------------------------------------------------
+// Advances the next frame for the stats...
+//-----------------------------------------------------------------------------
+void CEngineStats::NextFrame() 
+{
+}
+
+
+//-----------------------------------------------------------------------------
+// Pause those stats!
+//-----------------------------------------------------------------------------
+void CEngineStats::PauseStats( bool bPaused )
+{
+	if (bPaused)
+	{
+		if (m_InFrame)
+		{
+			m_bPaused = true;
+			m_InFrame = false;
+		}
+	}
+	else	// !bPaused
+	{
+		if (m_bPaused)
+		{
+			m_InFrame = true;
+			m_bPaused = false;
+		}
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// returns timed stats
+//-----------------------------------------------------------------------------
+
+double CEngineStats::TimedStatInFrame( EngineTimedStatId_t stat ) const
+{
+	return m_StatGroup.m_StatFrameTime[stat];
+}
+
+double CEngineStats::TotalTimedStat( EngineTimedStatId_t stat ) const
+{
+	return m_StatGroup.m_TotalStatTime[stat];
+}
+
+
+double CEngineStats::GetRunTime( void )
+{
+	return m_runEndTime - m_runStartTime;
+}
+