1 files changed, 67 insertions, 0 deletions
diff --git a/target/ifarp.h b/target/ifarp.h
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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 */