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

Copyright (c) 2006-2008, ASSIMP Development 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 Development 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.

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

/** @file Definition of the MDR importer class. */
#ifndef AI_MDRLOADER_H_INCLUDED
#define AI_MDRLOADER_H_INCLUDED

#include "../include/aiTypes.h"

#include "BaseImporter.h"
#include "MDRFileData.h"
#include "ByteSwap.h"

namespace Assimp	{
using namespace MDR;

// ---------------------------------------------------------------------------
/** Importer class for the MDR file format (Ravensoft)
*/
class MDRImporter : public BaseImporter
{
	friend class Importer;

protected:
	/** Constructor to be privately used by Importer */
	MDRImporter();

	/** Destructor, private as well */
	~MDRImporter();

public:

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

	// -------------------------------------------------------------------
	/** Called prior to ReadFile().
	* The function is a request to the importer to update its configuration
	* basing on the Importer's configuration property list.
	*/
	void SetupProperties(const Importer* pImp);

protected:

	// -------------------------------------------------------------------
	/** Called by Importer::GetExtensionList() for each loaded importer.
	 * See BaseImporter::GetExtensionList() for details
	 */
	void GetExtensionList(std::string& append)
	{
		append.append("*.mdr");
	}

	// -------------------------------------------------------------------
	/** Imports the given file into the given scene structure. 
	* See BaseImporter::InternReadFile() for details
	*/
	void InternReadFile( const std::string& pFile, aiScene* pScene,
		IOSystem* pIOHandler);

protected:


	// -------------------------------------------------------------------
	/** Validate the header of the file
	*/
	void ValidateHeader();

	// -------------------------------------------------------------------
	/** Validate the header of a MDR surface
	 *  @param pcSurf Surface to be validated
	*/
	void ValidateSurfaceHeader(BE_NCONST MDR::Surface* pcSurf);

	// -------------------------------------------------------------------
	/** Validate the header of a MDR LOD
	 *  @param pcLOD LOD to be validated
	*/
	void ValidateLODHeader(BE_NCONST MDR::LOD* pcLOD);

	// -------------------------------------------------------------------
	/** Uncompress a matrix
	 *
	 *  @param mat Destination matrix
	 *  @param compressed Pointer to 24 bytesof compressed data
	*/
	void MatrixUncompress(aiMatrix4x4& mat,const uint8_t * compressed);

protected:


	struct VertexInfo
	{
		aiVector3D xyz;
		aiVector3D normal;
		aiVector3D uv;
		unsigned int start,num;
	};
	typedef std::pair<uint32_t,float> BoneWeightInfo;


	/** Configuration option: frame to be loaded */
	unsigned int configFrameID;

	/** Header of the MDR file */
	BE_NCONST MDR::Header* pcHeader;

	/** Buffer to hold the loaded file */
	unsigned char* mBuffer;

	/** size of the file, in bytes */
	unsigned int fileSize;

	/** compressed frames? */
	bool compressed;
};

} // end of namespace Assimp

#endif // AI_MDRIMPORTER_H_INC