//  Approx2D.h -- Analysis of 2D Mondrian scenes.  Takes photogtaphs as input.   
//
//
// DESCRIPTION
//
// Copyright © Timothy Bahls, Daniel Scharstien 2004.
//
///////////////////////////////////////////////////////////////////////////

// unknown float value
#define UNKNOWN -9876
#define UNKNOWNF -9876.5f
#define MAX 1234.5f
#define MIN -1234.5f
#ifndef WIN32
#define __max(a,b)  (((a) > (b)) ? (a) : (b))
#define __min(a,b)  (((a) < (b)) ? (a) : (b))
#endif

#include "Color.h"



class CPhotoAnalysis;

class CRegPhotoAnalysis
{
public:
    int id; // its own index
	int nFrames;


	int maxVelocity;
	int minVelocity;
	int*maxVelData;
	int*minVelData;
	float minVelGuess;
	float maxVelGuess;

	float minLen;
	float maxLen;

	float*minmin;
	float*maxmin;
	float*minmax;
	float*maxmax;

    // constructor
	CRegPhotoAnalysis(int id, const CPhotoAnalysis * master);
	CRegPhotoAnalysis(){}  //default

	void deleteOld();

	bool operator == (CRegPhotoAnalysis);

	void limitV(int f1, int f2, float*minA, float*maxA);
	void limitP(int f1, int f2, float*&minA, float*&maxA);


	void restrictVel();
	void restrictLen();
	void restrictPosition();

	void velLessThan(float max, int odds);
	void velMoreThan(float min, int odds);
	void guessVelocity();
};


// all regions

class CPhotoAnalysis
{
    
    int nRegions;   // number of regions observed so far
	int maxWidth;   //length of image
	int maxID;
	
//float**edgeVels;//the velocities of edges, including hypothetical.
int**relative;//the relative distances
int**data;//the reduced image
CRegPhotoAnalysis* region;
CByteImage im;

CRegPhotoAnalysis null;
CCol * colTable;
   
int times;

public:
	int minVelocity;
	int maxVelocity;
	int nFrames;    // number of frames (used for iteration) 


    // constructor and destructor
    CPhotoAnalysis(int nFrames,bool iverbose);
	CPhotoAnalysis(){}  //default
    ~CPhotoAnalysis();
	int goGoGo(CByteImage*imgs, bool stereo, int minVelocity, int maxVelocity);
	void readFrame(CByteImage im,int frame,int row);
	void reportResults();
    bool verbose;

private:

    // prototypes
	int compare(int a, int b);//check to see if a is likely closer than b
	void p(int a);  //print the description of the color at colTable[a]
	void setCloser(int c, int f, int odds);//c probably closer f with likelyhood odds 
    void addid(int a); //new id seen
    int getPixID(int row, int col);//find color in im at row,col
	int colToID(CCol c); //find where in the colTable c goes.
	
	void analyzeT(int row, int col, int id1, int id2, int id3);  //checks four by four box around a two by two T junction 
	void checkForT(int row, int col, int displace);//looks for two by two T junctions

    void startRegion(int id, int frame, int x, int prevId);
    void endRegion(int id, int frame, int x, int nextId);


    void transitiveClosure();
	void occlusionDetection();
	void extendedT();
	void possibilityElimination();
	void stereoRestriction();

	

};