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dark-hammer / 3rdparty / assimp / src / ObjFileImporter.h

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/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------

Copyright (c) 2006-2012, assimp team
All rights reserved.

Redistribution and use of this software in source and binary forms, 
with or without modification, are permitted provided that the 
following conditions are met:

* Redistributions of source code must retain the above
  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
  following disclaimer in the documentation and/or other
  materials provided with the distribution.

* Neither the name of the assimp team, nor the names of its
  contributors may be used to endorse or promote products
  derived from this software without specific prior
  written permission of the assimp team.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

----------------------------------------------------------------------
*/


#ifndef OBJ_FILE_IMPORTER_H_INC
#define OBJ_FILE_IMPORTER_H_INC

#include "BaseImporter.h"
#include <vector>

struct aiMesh;
struct aiNode;

namespace Assimp
{

namespace ObjFile
{
struct Object;
struct Model;
}

// ------------------------------------------------------------------------------------------------
///	\class	ObjFileImporter
///	\brief	Imports a waveform obj file
// ------------------------------------------------------------------------------------------------
class ObjFileImporter : public BaseImporter
{	
public:
	///	\brief	Default constructor
	ObjFileImporter();

	///	\brief	Destructor
	~ObjFileImporter();

public:
	/// \brief	Returns whether the class can handle the format of the given file. 
	/// \remark	See BaseImporter::CanRead() for details.
	bool CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const;

private:

	//! \brief	Appends the supported extention.
	const aiImporterDesc* GetInfo () const;

	//!	\brief	File import implementation.
	void InternReadFile(const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler);
	
	//!	\brief	Create the data from imported content.
	void CreateDataFromImport(const ObjFile::Model* pModel, aiScene* pScene);
	
	//!	\brief	Creates all nodes stored in imported content.
	aiNode *createNodes(const ObjFile::Model* pModel, const ObjFile::Object* pData, unsigned int uiMeshIndex,
		aiNode *pParent, aiScene* pScene, std::vector<aiMesh*> &MeshArray);

	//!	\brief	Creates topology data like faces and meshes for the geometry.
	void createTopology(const ObjFile::Model* pModel, const ObjFile::Object* pData,
		unsigned int uiMeshIndex, aiMesh* pMesh);	
	
	//!	\brief	Creates vertices from model.
	void createVertexArray(const ObjFile::Model* pModel, const ObjFile::Object* pCurrentObject,
		unsigned int uiMeshIndex, aiMesh* pMesh,unsigned int uiIdxCount);

	//!	\brief	Object counter helper method.
	void countObjects(const std::vector<ObjFile::Object*> &rObjects, int &iNumMeshes);

	//!	\brief	Material creation.
	void createMaterials(const ObjFile::Model* pModel, aiScene* pScene);

	//!	\brief	Appends a child node to a parentnode and updates the datastructures.
	void appendChildToParentNode(aiNode *pParent, aiNode *pChild);

	//!	\brief TODO!
	void createAnimations();

private:
	//!	Data buffer
	std::vector<char> m_Buffer;
	//!	Pointer to root object instance
	ObjFile::Object *m_pRootObject;
	//!	Absolute pathname of model in filesystem
	std::string m_strAbsPath;
};

// ------------------------------------------------------------------------------------------------

} // Namespace Assimp

#endif
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