uid issue

utils/studiomdl/hardwarematrixstate.cpp

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+//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include <windows.h>
+#include "HardwareMatrixState.h"
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "studio.h"
+#include "studiomdl.h"
+
+CHardwareMatrixState::CHardwareMatrixState()
+{
+	m_LRUCounter = 0;
+	m_NumMatrices = 0;
+	m_matrixState = NULL;
+	m_savedMatrixState = NULL;
+}
+
+void CHardwareMatrixState::Init( int numHardwareMatrices )
+{
+	m_NumMatrices = numHardwareMatrices;
+	delete [] m_matrixState;
+	m_matrixState = new MatrixState_t[m_NumMatrices];
+	Assert( m_matrixState );
+	delete [] m_savedMatrixState;
+	m_savedMatrixState = new MatrixState_t[m_NumMatrices];
+	Assert( m_savedMatrixState );
+	m_LRUCounter = 0;
+	m_AllocatedMatrices = 0;
+
+	int i;
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		m_matrixState[i].allocated = false;
+	}
+}
+
+bool CHardwareMatrixState::AllocateMatrix( int globalMatrixID )
+{
+	int i;
+
+	if( IsMatrixAllocated( globalMatrixID ) )
+	{
+		return true;
+	}
+
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		if( !m_matrixState[i].allocated )
+		{
+			m_matrixState[i].globalMatrixID = globalMatrixID;
+			m_matrixState[i].allocated = true;
+			m_matrixState[i].lastUsageID = m_LRUCounter++;
+			++m_AllocatedMatrices;
+			DumpState();
+			return true;
+		}
+	}
+	DumpState();
+	return false;
+}
+
+int CHardwareMatrixState::FindLocalLRUIndex( void )
+{
+	int oldestLRUCounter = INT_MAX;
+	int i;
+	int oldestID = 0;
+
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		if( !m_matrixState[i].allocated )
+		{
+			continue;
+		}
+		if( m_matrixState[i].lastUsageID < oldestLRUCounter )
+		{
+			oldestLRUCounter = m_matrixState[i].lastUsageID;
+			oldestID = i;
+		}
+	}
+
+	Assert( oldestLRUCounter != INT_MAX );
+	return oldestID;
+}
+
+void CHardwareMatrixState::DeallocateLRU( void )
+{
+	int id;
+
+	id = FindLocalLRUIndex();
+	m_matrixState[id].allocated = false;
+	--m_AllocatedMatrices;
+}
+
+void CHardwareMatrixState::DeallocateLRU( int n )
+{
+	int i;
+
+	for( i = 0; i < n; i++ )
+	{
+		DeallocateLRU();
+	}
+}
+
+bool CHardwareMatrixState::IsMatrixAllocated( int globalMatrixID ) const
+{
+	int i;
+
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		if( m_matrixState[i].globalMatrixID == globalMatrixID && 
+			m_matrixState[i].allocated )
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+void CHardwareMatrixState::DeallocateAll()
+{
+	int i;
+
+	DumpState();
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		m_matrixState[i].allocated = false;
+		m_matrixState[i].globalMatrixID = INT_MAX;
+		m_matrixState[i].lastUsageID = INT_MAX;
+	}
+	m_AllocatedMatrices = 0;
+	DumpState();
+}
+
+void CHardwareMatrixState::SaveState( void )
+{
+	int i;
+
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		m_savedMatrixState[i] = m_matrixState[i];
+	}
+}
+
+void CHardwareMatrixState::RestoreState( void )
+{
+	int i;
+
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		m_matrixState[i] = m_savedMatrixState[i];
+	}
+}
+
+int CHardwareMatrixState::AllocatedMatrixCount() const
+{
+	return m_AllocatedMatrices;
+}
+
+int CHardwareMatrixState::FreeMatrixCount() const
+{
+	return m_NumMatrices - m_AllocatedMatrices;
+}
+
+int CHardwareMatrixState::GetNthBoneGlobalID( int n ) const
+{
+	int i;
+	int m = 0;
+
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		if( m_matrixState[i].allocated )
+		{
+			if( n == m )
+			{
+				return m_matrixState[i].globalMatrixID;
+			}
+			m++;
+		}
+	}
+	Assert( 0 );
+	MdlError( "GetNthBoneGlobalID() Failure\n" );
+	return 0;
+}
+
+void CHardwareMatrixState::DumpState( void )
+{
+	int i;
+	static char buf[256];
+
+//#ifndef _DEBUG
+	return;
+//#endif
+	
+	OutputDebugString( "DumpState\n:" );
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		if( m_matrixState[i].allocated )
+		{
+			sprintf( buf, "%d: allocated: %s lastUsageID: %d globalMatrixID: %d\n",
+				i, 
+				m_matrixState[i].allocated ? "true " : "false",
+				m_matrixState[i].lastUsageID,
+				m_matrixState[i].globalMatrixID );
+			OutputDebugString( buf );
+		}
+	}
+}
+
+int CHardwareMatrixState::FindHardwareMatrix( int globalMatrixID )
+{
+	int i;
+
+	for( i = 0; i < m_NumMatrices; i++ )
+	{
+		if( m_matrixState[i].globalMatrixID == globalMatrixID )
+		{
+			return i;
+		}
+	}
+
+	Assert( 0 );
+	MdlError( "barfing in FindHardwareMatrix\n" );
+
+	return 0;
+}
+