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/**
\file wrapper/HXWBasicTessellation.h

Header file for the wrapper Tessellation module.

***********************************************************************************************************************/

#include "HXWEntity.h"

#include <stdlib.h>

/*!
\defgroup wrapper_tessellation_module Tessellation Module
\ingroup wrapper_module
Entity type is \ref HXWBasicTessellation.
*/

/*! \class HXWBasicTessellation HXWBasicTessellation.h "HXWBasicTessellation.h"
*	\brief This is a tessellation builder.
*	\ingroup wrapper_tessellation_module
*/
class HXWBasicTessellation: public HXWEntity
{
protected:
	static const int ALLOCATION_STEP = 5;	/*! step in allocation or reallocation array of coords, codes, etc. */

protected:
	A3DTessBaseData m_coordsdata;			/*!< tessellation that is built */
	A3DUns32	m_uiCoordsAllocated;

protected:
	A3DPtr my_alloc(A3DUns32 uiSize) { return malloc((size_t) uiSize); }	/*!< allocation for A3DTessBaseData */
	A3DVoid my_free(A3DPtr ptr) { free(ptr); ptr = NULL; }					/*!< free for A3DTessBaseData */

public:
	HXWBasicTessellation();
	~HXWBasicTessellation();

protected:
	void add_coord(A3DDouble dCoord);	/*!< add one double in tessellation */
	void add_coords(A3DDouble* pdCoords, A3DUns32 uiCoordsSize); /*!< add an array of doubles in tessellation */
	virtual void reset();				/*!< reset of doubles in tessellation */
	void free_extra_coords();			/*!< to manage extra allocations */

public:
	/*!< set the tessellation in exchange owner structure */
	inline int SetCoords(A3DTessBase* pTessMarkup) { return A3DTessBaseSet(pTessMarkup,&m_coordsdata); }
};