From 22f703cab05b7cd368f4de9e03991b7664dc5022 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= <debian@jff-webhosting.net>
Date: Mon, 1 Sep 2014 13:56:46 +0200
Subject: Initial import of argyll version 1.5.1-8

---
 xicc/moncurve.h | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 xicc/moncurve.h

(limited to 'xicc/moncurve.h')

diff --git a/xicc/moncurve.h b/xicc/moncurve.h
new file mode 100644
index 0000000..5510c7d
--- /dev/null
+++ b/xicc/moncurve.h
@@ -0,0 +1,121 @@
+
+#ifndef MCV_H
+#define MCV_H
+
+/* 
+ * Argyll Color Correction System
+ * Monotonic curve class for display calibration.
+ *
+ * Author: Graeme W. Gill
+ * Date:   30/10/2005
+ *
+ * Copyright 2005 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.
+ *
+ * This is based on the monotonic curve equations used elsewhere,
+ * but currently intended to support the display calibration process.
+ * moncurve is not currently general, missing:
+ *
+ *  input scaling
+ *  output scaling
+ *
+ * The nominal input and output ranges are 0.0 to 1.0,
+ */
+
+/* A test patch value */
+typedef struct {
+	double p;		/* Position */
+	double v;		/* Value */
+	double w;		/* Weighting, nominally 1.0 */
+} mcvco;
+
+struct _mcv {
+
+  /* Public: */
+	void (*del)(struct _mcv *p);
+
+	/* Fit the curve to the given points */
+	void (*fit) (struct _mcv *p,
+	            int verb,		/* Vebosity level, 0 = none */
+	            int order,		/* Number of curve orders, 1..MCV_MAXORDER */
+		        mcvco *d,		/* Array holding scattered initialisation data */
+		        int ndp,		/* Number of data points */
+	            double smooth	/* Degree of smoothing, 1.0 = normal */			
+	);
+
+	/* Offset the the output so that the value for input 0.0, */
+	/* is the given value. Don't change the 1.0 output */
+	void (*force_0) (struct _mcv *p,
+	            double target	/* Target output value */
+	);
+
+	/* Scale the the output so that the value for input 1.0, */
+	/* is the given value. Don't change the 0.0 output */
+	void (*force_1) (struct _mcv *p,
+	            double target	/* Target output value */
+	);
+
+	/* Scale the the output so that the value for input 1.0, */
+	/* is the given target value. Scale the value for 0.0 too. */
+	void (*force_scale) (struct _mcv *p,
+	            double target	/* Target output value */
+	);
+
+	/* Return the number of parameters and the parameters in */
+	/* an allocated array. free() when done. */
+	/* The parameters are the offset, scale, then all the other parameters */
+	int (*get_params)(struct _mcv *p, double **rp);
+
+	/* Translate a value through the current curve */
+	double (*interp) (struct _mcv *p,
+	                  double in);	/* Input value */
+
+	/* Translate a value backwards through the current curve */
+	double (*inv_interp) (struct _mcv *p,
+	                  double in);	/* Input value */
+
+
+	/* Translate a value given the parametrs */
+	double (*interp_p) (struct _mcv *p,
+	                  double *pms, double in);	/* Input value */
+
+	/* return the shaper parameters normalising weight */ 
+	double (*shweight_p)(struct _mcv *p, double *v, double smooth);
+
+	/* Translate a value given the parametrs, with partial derivatives */
+	double (*dinterp_p) (struct _mcv *p, double *pms, double *dv, double vv);
+
+	/* return the shaper parameters normalising weight, with partial derivatives */ 
+	double (*dshweight_p)(struct _mcv *p, double *v, double *dv, double smooth);
+
+
+  /* Private: */
+	int verb;				/* Verbose */
+	int noos;				/* flag, 2 = offset and scale not fitted */
+	int luord;				/* Lookup order including offset and scale */
+	double *pms;			/* Allocated curve parameters */
+	double *dv;				/* Work space for dv's during optimisation */
+	double resid;			/* Residual fit error */
+
+	mcvco *d;				/* Array holding scattered initialisation data */
+	int ndp;				/* Number of data points */
+	double dra;				/* Data range */
+
+	double smooth;			/* Smoothing factor */
+
+}; typedef struct _mcv mcv;
+
+/* Create a new, uninitialised mcv that will fit with offset and scale */
+mcv *new_mcv(void);
+
+/* Create a new mcv initiated with the given curve parameters */
+mcv *new_mcv_p(double *pp, int np);
+
+/* Create a new, uninitialised mcv with offset and scale not to be fitted, */
+/* and defaulting to 0.0 and 1.0 */
+mcv *new_mcv_noos(void);
+
+#endif /* MCV */
+
-- 
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