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#ifndef IFARP_H
/*
* Argyll Color Correction System
*
* Incremental far point class
*
* Author: Graeme W. Gill
* Date: 6/11/2002
*
* Copyright 2002 Graeme W. Gill
* All rights reserved.
*
* This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :-
* see the License.txt file for licencing details.
*/
/* A sample point node */
struct _ifpnode {
int fx; /* nz if point is fixed (existing) */
double p[MXTD]; /* Device coordinate position */
double v[MXTD]; /* Subjective value (Labnnn..) */
unsigned int touch; /* nn: Per value touch count */
}; typedef struct _ifpnode ifpnode;
/* Main simplex latice object */
struct _ifarp {
/* private: */
int di; /* Point dimensionality */
double ilimit; /* Ink limit - limit on sum of p[] */
int inp; /* Intended number of points in list */
int np; /* Number of point nodes in list */
ifpnode *nodes; /* Current array of nodes */
int rix; /* Next read index */
/* Perceptual function */
void (*percept)(void *od, double *out, double *in);
void *od; /* Opaque data for perceptual point */
/* nn support */
ifpnode **sax[MXTD]; /* Sorted axis pointers, one for each direction */
unsigned int tbase; /* Touch base value for this pass */
unsigned int ttarget; /* Touch target value for this pass */
/* public: */
/* Initialise, ready to read out all the points */
void (*reset)(struct _ifarp *s);
/* Read the next set of non-fixed points values */
/* return non-zero when no more points */
int (*read)(struct _ifarp *s, double *d, double *p);
/* Destroy ourselves */
void (*del)(struct _ifarp *s);
}; typedef struct _ifarp ifarp;
/* Constructor */
extern ifarp *new_ifarp(int di, double ilimit, int npoints,
fxpos *fxlist, int fxno,
void (*percept)(void *od, double *out, double *in), void *od);
#define IFARP_H
#endif /* IFARP_H */
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