/*
This source file is part of Castor3D (http://castor3d.developpez.com/castor3d.htm)

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
the program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.
*/
#ifndef ___C3D_Md3Importer___
#define ___C3D_Md3Importer___

#include <Castor3D/Importer.hpp>

#ifndef _WIN32
#	define C3D_Md3_API
#else
#	ifdef Md3Importer_EXPORTS
#		define C3D_Md3_API __declspec(dllexport)
#	else
#		define C3D_Md3_API __declspec(dllimport)
#	endif
#endif

namespace Castor3D
{
	//! MD3 file importer
	/*!
	Imports data from MD3 (Quake3) files
	\author Sylvain DOREMUS
	\date 25/08/2010
	*/
	class Md3Importer : public Importer
	{
	private:
		struct Md3Header
		{
			char	m_fileID[4];
			int		m_version;
			char	m_strFile[68];
			int		m_numFrames;
			int		m_numTags;
			int		m_numMeshes;
			int		m_numMaxSkins;
			int		m_headerSize;
			int		m_tagStart;
			int		m_tagEnd;
			int		m_fileSize;
		};

		struct Md3MeshInfo
		{
			char	m_meshID[4];
			char	m_strName[68];
			int		m_numMeshFrames;
			int		m_numSkins;
			int     m_numVertices;
			int		m_numTriangles;
			int		m_triStart;
			int		m_headerSize;
			int     m_uvStart;
			int		m_vertexStart;
			int		m_meshSize;
		};

		struct Md3Tag
		{
			char			m_strName[64];
			Castor::Point3r	m_position;
			real			m_rotation[3][3];
		};

		struct Md3Bone
		{
			real	m_mins[3];
			real	m_maxs[3];
			real	m_position[3];
			real	m_scale;
			char	m_creator[16];
		};


		struct Md3Triangle
		{
		   signed short	 m_vertex[3];
		   uint8_t m_normal[2];
		};

		struct Md3Face
		{
		   int m_vertexIndices[3];
		};

		struct Md3TexCoord
		{
		   real m_textureCoord[2];
		};

		struct Md3Skin
		{
			char m_strName[68];
		};

	public:
		Md3Header				m_header;

		Md3Skin *				m_skins;
		Md3TexCoord *			m_texCoords;
		Md3Face *				m_triangles;
		Md3Triangle *			m_vertices;
		Md3Bone *				m_bones;

		Md3Tag *				m_tags;
		int						m_numOfTags;
		MeshPtr *				m_links;
		SubmeshPtrStrMap		m_mapSubmeshesByName;

		Castor::BinaryFile *	m_pFile;

	public:
		/**
		 * Constructor
		 */
		Md3Importer( Engine * p_pEngine );

	private:
		virtual ScenePtr DoImportScene();
		virtual MeshPtr DoImportMesh();
		void DoReadMD3Data( MeshPtr p_pMesh, PassPtr p_pPass );
		void DoConvertDataStructures( MeshPtr p_pMesh, Md3MeshInfo p_meshHeader);
		bool DoLoadSkin( Castor::String const & p_strSkin);
		bool DoLoadShader( MeshPtr p_pMesh, Castor::String const & p_strShader);
		void DoCleanUp();
	};
}

#endif