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public/movieobjects/dmobjserializer.h

@@ -0,0 +1,114 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Serialize and Unserialize Wavefront OBJ <-> DME Data
+//
+//=============================================================================
+
+#ifndef DMOBJSERIALIZER_H
+#define DMOBJSERIALIZER_H
+
+#if defined( _WIN32 )
+#pragma once
+#endif
+
+#include "datamodel/idatamodel.h"
+#include "tier1/utlbuffer.h"
+#include "tier1/utlstring.h"
+#include "tier1/utlvector.h"
+#include "tier1/UtlStringMap.h"
+
+class CDmeMesh;
+class CDmeDag;
+class CDmeVertexDeltaData;
+class CDmeCombinationOperator;
+
+
+//-----------------------------------------------------------------------------
+// Serialization class for OBJ files
+//-----------------------------------------------------------------------------
+class CDmObjSerializer : public IDmSerializer
+{
+public:
+	// Inherited from IDMSerializer
+	virtual const char *GetName() const { return "obj"; }
+	virtual const char *GetDescription() const { return "Wavefront OBJ"; }
+	virtual bool IsBinaryFormat() const { return false; }
+	virtual bool StoresVersionInFile() const { return false; }
+	virtual int GetCurrentVersion() const { return 0; } // doesn't store a version
+	virtual bool Serialize( CUtlBuffer &buf, CDmElement *pRoot );
+	virtual bool Unserialize( CUtlBuffer &buf, const char *pEncodingName, int nEncodingVersion,
+							  const char *pSourceFormatName, int nSourceFormatVersion,
+							  DmFileId_t fileid, DmConflictResolution_t idConflictResolution, CDmElement **ppRoot );
+	virtual const char *GetImportedFormat() const { return NULL; }
+	virtual int GetImportedVersion() const { return 1; }
+
+	CDmElement *ReadOBJ( const char *pFilename, CDmeMesh **ppCreatedMesh = NULL, bool bLoadAllDeltas = true, bool bAbsolute = true );
+
+	bool WriteOBJ( const char *pFilename, CDmElement *pRoot, bool bWriteDeltas, const char *pDeltaName = NULL, bool absolute = true );
+
+	void MeshToObj( CUtlBuffer &b, const matrix3x4_t &parentWorldMatrix, CDmeMesh *pMesh, const char *pDeltaName = NULL, bool absolute = true );
+
+	CDmeVertexDeltaData *GetDelta( const char *pDeltaName, bool bAbsolute );
+
+private:
+	CDmElement *ReadOBJ(
+		CUtlBuffer &buf,
+		DmFileId_t dmFileId,
+		const char *pName,
+		const char *pFilename = NULL,
+		CDmeMesh *pBaseMesh = NULL,
+		CDmeMesh **ppCreatedMesh = NULL,
+		bool bAbsolute = true );
+
+	static int OutputVectors( CUtlBuffer &b, const char *pPrefix, const CUtlVector< Vector > &vData, const matrix3x4_t &matrix );
+
+	static int OutputVectors( CUtlBuffer &b, const char *pPrefix, const CUtlVector< Vector2D > &vData );
+
+	static void DeltaToObj( CUtlBuffer &b, const matrix3x4_t &parentWorldMatrix, CDmeMesh *pMesh, const char *pDeltaName = NULL );
+
+	void ParseMtlLib( CUtlBuffer &buf );
+
+	const char *FindMtlEntry( const char *pTgaName );
+
+	static bool ParseVertex( CUtlBuffer& bufParse, characterset_t &breakSet, int &v, int &t, int &n );
+
+	static const char *SkipSpace( const char *pBuf );
+
+	void DagToObj( CUtlBuffer &b, const matrix3x4_t &parentWorldMatrix, CDmeDag *pDag, const char *pDeltaName = NULL, bool absolute = true );
+
+	static void FindDeltaMeshes( CDmeDag *pDag, CUtlVector< CDmeMesh * > &meshes );
+
+	bool LoadDependentDeltas( const char *pDeltaName );
+
+	struct MtlInfo_t
+	{
+		CUtlString m_MtlName;
+		CUtlString m_TgaName;
+	};
+
+	CUtlVector< MtlInfo_t > m_mtlLib;
+
+	CUtlString m_objDirectory;
+
+	struct DeltaInfo_t
+	{
+		DeltaInfo_t()
+		: m_pComboOp( NULL )
+		, m_pMesh( NULL )
+		, m_pDeltaData( NULL )
+		{}
+
+		CUtlString m_filename;
+		CDmeMesh *m_pMesh;
+		CDmeCombinationOperator *m_pComboOp;
+		CDmeVertexDeltaData *m_pDeltaData;
+	};
+
+	CUtlStringMap< DeltaInfo_t > m_deltas;
+
+	int m_nPositionOffset;
+	int m_nTextureOffset;
+	int m_nNormalOffset;
+};
+
+#endif // DMOBJSERIALIZER_H