#ifndef _PACKING_TEXTURE_H_
#define _PACKING_TEXTURE_H_

#ifndef _PACKING_PATCH_H_
#include "AnimTexPacker/PackingPatch.h"
#endif //_PACKING_PATCH_H_

namespace ITF
{

	typedef ITF_VECTOR<PackingPatch> ListPatch;
#define USE_NEW_GRID_COMPUTATION_SYSTEM

    struct GridInfo
    {
        GridInfo() : m_x(0), m_y(0), m_val(0) {}
        GridInfo(i32 _x, i32 _y, i32 _val) : m_x(_x), m_y(_y), m_val(_val)
        {
        }

        i32     m_x;
        i32     m_y;
        i32     m_val;
    };

	class PackingTexture
	{

	public:
		
		// Constructor
        PackingTexture() {}
        PackingTexture(const ListPatch & _patchs, u32 _width, u32 _height, f32 _sampling);
		~PackingTexture();

		// Service
		void	computeGrid();
        void    recomputeRotation(ListPatch & patchs);

		// Accessors
		// TODO : rajouter les checks de depassement d'index !
		ITF_INLINE const u32 getCountPatchs() {return m_patchs.size();}
		ITF_INLINE const PackingPatch& getPatchsByIndex(u32 _index) {return m_patchs[_index];}
        ITF_INLINE const ListPatch& getPatchsList() {return m_patchs;}
		ITF_INLINE u32 getWidth() {return m_width;}
		ITF_INLINE u32 getHeight() {return m_height;}
		ITF_INLINE f32 getGridSample() {return m_gridSample;}
		ITF_INLINE bbool indexGridIsUsed(u32 _index) {return m_grid[_index] == 0;}

        static i32 s_gridComputationValue;

	public:

		// Service internal
		void    reset(const ListPatch & _patchs, u32 _width, u32 _height, f32 _sampling);
        bbool   isFree(PackingPatch& _patch, u32 _indexRow, u32 _indexCol, u32 _width, u32 _height, u32& _countNeighbor, u32 _mode);
		void	drawGridTexture();
		void	pushPatch(u32 _indexRow, u32 _indexCol, u32 _mode, PackingPatch& _patch);
		void	growTexture();
		bbool	packingPatch();
#ifndef USE_NEW_GRID_COMPUTATION_SYSTEM
        u32		getCountNeighbor(u32 _indexRow, u32 _indexCol);
#else
        void    propagateGridValues(const ITF_VECTOR<GridInfo> & _gridIndexes);
#endif
	//private:

		ListPatch			m_patchs;
		ITF_VECTOR<i32>	    m_grid;
		u32					m_width;
		u32					m_height;
		u32					countGrow;
		f32					m_gridSample;
        u32                 m_minNeededGridElemts;
        u32                 m_maxNeededGridElemts;
        
#ifdef USE_NEW_GRID_COMPUTATION_SYSTEM        
        SafeArray<GridInfo>	m_gridInfoTMP;
#endif
        };

}

#endif // _PACKING_TEXTURE_H_