// DLMSimilarity.h

// ==== control variables ========================================== ;

#define PREFERRED  1
#define NEXT       2
#define RANDOM     3

const int gallerySizeMax0 = 5+1; // maximal possible size of the gallery + 1 ;
extern int maxGallerySize; // actual maximal simulated gallery size ;
                                 // in order to avoid multiple mem allocation ;
const int gallerySizeMax = 5+1;
	
/* For objects and models there are stored graphs with the precomputed
   Gabor-wavelet transform coefficients.  For the models they are
   taken from a grid of 10 x 10 nodes centered on the faces. For the
   objects the grids cover the whole image plane with 16 x 17 nodes.
   From these stored graphs a subgraph can be selected.  From the 16 x
   17 graph for example a 12 x 12 subgraph will automatically be
   selected if the size of layer 1 is 12 x 12.  In addition one can
   choose the location of the subgraph by the offsets Si1offset, ... ,
   and Sj2offset.  They are given as integer numbers behind the model
   names in the gallery files.  */
   
class DLMSimilarity : public NslModule
{
public:
	NslDoutFloat4 S21[gallerySizeMax]; // similarity matrix from layer 1 to layers 2 ;
private:
	NslFloat4 showS21; // for display purposes only ;
//	int gallerySizeMax;
	
	int frame;      // width of the frame around layer 1
	int i1max; 	// size of the image layer 1, including frame;
	int j1max;
	int i2max;      // size of the model layers 2 ;
	int j2max;
	
	int i1Rmax;     // size of the projection patches .. ;
	int j1Rmax;     // ... from model layer 2 to image layer 1 ;
	
	int Si2offset, Sj2offset, Si1offset, Sj1offset, Oi1offset, Oj1offset;
	
	int selectedObject;
	
	nsl_string objectsFileName;
	nsl_string modelsFileName;
	nsl_string objectName;                // name of the image graph file ;

	int kLevels, kDirections;
	int kLevelsTmp, kDirectionsTmp;
	float kMaximum, kFactor, sigma;
	float kMaximumTmp, kFactorTmp, sigmaTmp;
	int tablesCreated;
	float *kxArr;
	float *kyArr;
	float *confidenceBak;
	float *deltaPhaseBak;

	NslFloat0 ObjectSelectionMode;
	NslFloat0 preferredObject;
	NslFloat0 alpha_S; // minimal synaptic weight ;
	
	char* modelName[gallerySizeMax0];     // names of model graph files ;

public:
	DLMSimilarity(nsl_string,NslModule*);
	~DLMSimilarity() {}
	
	void initModule();
	void memAlloc(int,int,int,int,int,int,int,int);
	void initSysTemp(NslFloat0&,NslFloat0&);
	void initRunTemp(NslFloat0&);
		
	void createTables();
	float similarity(float*, float*);
};