// ------------------------------------------------------------
// pixel.h
//
// Reading writing tiff images
//
// 12.03.2005, J.Ahrensfeld
// ------------------------------------------------------------
#ifndef PIXEL_H
#define PIXEL_H

#include "mtypes.h"
#include "imageio.h"

// ------------------------------------------------------------
#define	MAJOR_STATE_MASK	0x03

enum PixelState
{
	pixel_state_all = 0,
	pixel_state_foreground = 1,
	pixel_state_background = 2,
	pixel_state_unknown = 4,
	pixel_state_computed = 8
};

typedef struct _pixel_t
{
	UINT32 state;

	pxl_id_t id_this, id_closest_f, id_closest_b;
	pos_t raster_coord;
	double dist_closest_f, dist_closest_b;

} pixel_t;

typedef struct _set_data_t
{
	UINT32 num_row, num_col, num_pixel, num_unknown, num_fore, num_back;
	pixel_t *pPixel;

} set_data_t;

// ------------------------------------------------------------
void SetInit(set_data_t *pObj, int num_row, int num_col);
void PixelStateInit(set_data_t *pObj, image_t *pTrimap_image);
int GetCropSet(set_data_t *pObj, int *pCrop, pos_t center, pos_t rect_size, UINT32 select_state);
int GetCircleSet(set_data_t *pObj, int *pCrop, pos_t center, double radius, UINT32 select_state);
int GetSetByState(set_data_t *pObj, pxl_id_t *pSet, UINT32 select_state);
int ComputeDistanceMap(set_data_t *pObj, pxl_id_t *pSet_unknown, int num_unknown);
int ComputeCalcSet(set_data_t *pObj, pxl_id_t *pSet_unknown, int num_unknown);
int SaveCalcSet(char *filename, set_data_t *pObj, pxl_id_t *pSet_unknown, int num_unknown);
int LoadCalcSet(char *filename, set_data_t *pObj, pxl_id_t *pSet_unknown, int num_unknown);

// ------------------------------------------------------------
#endif // PIXEL_H