#ifndef _PACKING_PATCH_H_
#define _PACKING_PATCH_H_

#ifndef _ITF_VEC2D_H_
#include "core/math/vec2d.h"
#endif //_ITF_VEC2D_H_

#ifndef _ITF_BV_AABB_H_
#include "core/boundingvolume/AABB.h"
#endif //_ITF_BV_AABB_H_

namespace ITF
{

	#define ROTATE_0		    0
	#define ROTATE_90		    1
	#define ROTATE_180		    2
	#define ROTATE_270		    3
	#define ROTATE_COUNT	    4
    
    #define SAMPLE_MASK         0xFF
    #define SAMPLE_TAG          (SAMPLE_MASK + 1)
    #define SAMPLE_ROTATE_OOBB  50

    struct BeginEnd
    {
        u32 m_begin;
        u32 m_end;
    };

	class PackingPatch
	{
	public:

		PackingPatch();
		~PackingPatch();

		ITF_VECTOR<Vec2d>	    m_points;
        ITF_VECTOR<BeginEnd>	m_subPoly;
		AABB				    m_obb;
		f32					    m_area;
		f32					    m_angle;
		Vec2d				    m_baryCenter;

		// Grid sampling
		u32					m_widthSampling;
		u32					m_heightSampling;
		SafeArray<u32>		m_sampling;

		Vec2d				m_posInImage;
		u32					m_rotateMode;

		//
		f32					m_rotation;
		Vec2d				m_translation;
        
        ITF_VECTOR<u32>     m_srcData;

        void	            computeOBB(bbool _ignoreRotate = bfalse);
        void                sample(f32 _gridSample);
        Vec2d               getBaryCenter();

        void	            getCoorSample(f32 _gridSample, const Vec2d &_pos, i32& _x, i32& _y);
        void                fillPoint(i32 x, i32 y, u32 idx);
        void	            bresenham(i32 _x1, i32 _y1, i32 _x2, i32 _y2, u32 idx);
        void	            andres(i32 _x1, i32 _y1, i32 _x2, i32 _y2, u32 idx);
        void                gridFill(f32 _gridSample, Vec2d &_p1, Vec2d &_p2, u32 _idx);
        bbool               isInside(f32 _gridSample, u32 fillIdx, u32 idxBegin, u32 idxEnd, u32 _x, u32 _y);
        bbool               searchSead(f32 _gridSample, u32 fillIdx, u32 idxBegin, u32 idxEnd, u32 _xbegin, u32 _xend, u32 _ybegin, u32 _yend, u32 & _seed);
	};

}

#endif // _PACKING_PATCH_H_