y:/PUC/Realidade Virtual/trabalhos/raclib/src/racdetect.h

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#ifndef _RAC_DETECT_H
#define _RAC_DETECT_H

#include <ds/list.h>
#include "ds/arrayold.h"

#ifndef NULL
#define NULL 0
#endif

#ifndef BYTE
#define BYTE unsigned char
#endif

#ifndef ROUND
#define ROUND(x) (int)  ( (x>0) ? (x+=0.5) : (x-=0.5) )
#endif

struct RacPixel
{
   int x;
   int y;
};

typedef DsArrayOld<RacPixel*> RacPixelArray;

struct RacLabel
{
   bool draw;     
   int nPixel;    
   int nVertices; 
   int labelId;   
   RacPixelArray *pixelArray;    
   RacPixelArray *verticesArray; 

   RacPixel vertices[4];   
};


typedef DsPList<RacLabel> RacLabelList;

typedef DsPListIterator<RacLabel> RacLabelListItr;

class Rac
{
public:

   Rac();
   ~Rac();

   void setSize(const int width, const int height);

   void find(BYTE *imgSrc);

   void findVertices();

   void reset();

   RacLabelList labelList;  
   int *imgLabel;
   bool ok;

private:

   void findRecur(int x, int y, int label, unsigned int depth);

   int chainHull( RacPixelArray &P, int n, RacPixelArray &H);

   int isLeft( RacPixel P0, RacPixel P1, RacPixel P2 );

   bool filterVertices(RacPixelArray &verticesArray, int size, RacPixel *vertices);

   float dot(RacPixel &a, RacPixel &b, RacPixel &c);
   static int label;
   int width;
   int height;
   BYTE *img;
   
   RacLabelListItr *labelItr;

   unsigned int nextPoolPixel;
   RacPixelArray pool;  
};

#endif

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