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diff --git a/mdllib/mdllib_stripinfo.h b/mdllib/mdllib_stripinfo.h
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+++ b/mdllib/mdllib_stripinfo.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef MDLLIB_STRIPINFO_H
+#define MDLLIB_STRIPINFO_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "mdllib/mdllib.h"
+#include "mdllib_utils.h"
+#include "UtlSortVector.h"
+
+
+//
+// CMdlStripInfo
+//	Implementation of IMdlStripInfo interface
+//
+class CMdlStripInfo : public IMdlStripInfo
+{
+public:
+	CMdlStripInfo();
+
+	//
+	// Serialization
+	//
+public:
+	// Save the strip info to the buffer (appends to the end)
+	virtual bool Serialize( CUtlBuffer &bufStorage ) const;
+
+	// Load the strip info from the buffer (reads from the current position as much as needed)
+	virtual bool UnSerialize( CUtlBuffer &bufData );
+
+	//
+	// Stripping info state
+	//
+public:
+	// Returns the checksums that the stripping info was generated for:
+	//	plChecksumOriginal		if non-NULL will hold the checksum of the original model submitted for stripping
+	//	plChecksumStripped		if non-NULL will hold the resulting checksum of the stripped model
+	virtual bool GetCheckSum( long *plChecksumOriginal, long *plChecksumStripped ) const;
+
+	//
+	// Stripping
+	//
+public:
+
+	//
+	// StripHardwareVertsBuffer
+	//	The main function that strips the vhv buffer
+	//		vhvBuffer		- vhv buffer, updated, size reduced
+	//
+	virtual bool StripHardwareVertsBuffer( CUtlBuffer &vhvBuffer );
+
+	//
+	// StripModelBuffer
+	//	The main function that strips the mdl buffer
+	//		mdlBuffer		- mdl buffer, updated
+	//
+	virtual bool StripModelBuffer( CUtlBuffer &mdlBuffer );
+
+	//
+	// StripVertexDataBuffer
+	//	The main function that strips the vvd buffer
+	//		vvdBuffer		- vvd buffer, updated, size reduced
+	//
+	virtual bool StripVertexDataBuffer( CUtlBuffer &vvdBuffer );
+
+	//
+	// StripOptimizedModelBuffer
+	//	The main function that strips the vtx buffer
+	//		vtxBuffer		- vtx buffer, updated, size reduced
+	//
+	virtual bool StripOptimizedModelBuffer( CUtlBuffer &vtxBuffer );
+
+	//
+	// Release the object with "delete this"
+	//
+public:
+	virtual void DeleteThis();
+
+
+
+public:
+	void Reset();
+
+
+public:
+	enum Mode
+	{
+		MODE_UNINITIALIZED	= 0,
+		MODE_NO_CHANGE		= 1,
+		MODE_STRIP_LOD_1N	= 2,
+	};
+
+	//
+	// Internal data used for stripping
+	//
+public:
+	int m_eMode;
+	long m_lChecksumOld, m_lChecksumNew;
+	CGrowableBitVec m_vtxVerts;
+	CUtlSortVector< unsigned short, CLessSimple< unsigned short > > m_vtxIndices;
+
+	//
+	// Mesh ranges fixup
+	//
+public:
+	struct MdlRangeItem
+	{
+		/* implicit */ MdlRangeItem( int offOld = 0, int numOld = 0, int offNew = 0, int numNew = 0 ) :
+			m_offOld( offOld ), m_offNew( offNew ), m_numOld( numOld ), m_numNew( numNew ) {}
+
+		int m_offOld, m_offNew;
+		int m_numOld, m_numNew;
+
+		bool operator < ( MdlRangeItem const &x ) const { return m_offNew < x.m_offNew; }
+	};
+	CUtlSortVector< CMdlStripInfo::MdlRangeItem, CLessSimple< CMdlStripInfo::MdlRangeItem > > m_vtxMdlOffsets;
+
+};
+
+
+#endif // #ifndef MDLLIB_STRIPINFO_H