1 files changed, 78 insertions, 0 deletions
diff --git a/xicc/xcal.h b/xicc/xcal.h
new file mode 100644
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+++ b/xicc/xcal.h
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+
+#ifndef XCAL_H
+#define XCAL_H
+
+/* 
+ * Argyll Color Correction System
+ * Calibration curve class.
+ *
+ * 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 class allows reading and using a calibration file.
+ * Creation is currently left up to specialized programs (dispcal, printcal).
+ * This is also used by xicc to automatically take calibration into account
+ * when computing ink limits.
+ */
+
+struct _xcal {
+
+  /* Public: */
+	void (*del)(struct _xcal *p);
+
+	/* Read a calibration file from a CGATS table */
+	/* Return nz if this fails (filename is for error messages) */
+	int (*read_cgats) (struct _xcal *p, cgats *cg, int table, char *filename);
+
+	/* Read a calibration file */
+	/* Return nz if this fails */
+	int (*read) (struct _xcal *p, char *filename);
+
+	/* Write a calibration to a new cgats table */
+	/* Return nz if this fails */
+	int (*write_cgats)(struct _xcal *p, cgats *tcg);
+
+	/* Write a calibration file */
+	/* Return nz if this fails */
+	int (*write)(struct _xcal *p, char *filename);
+
+	/* Translate values through the curves curves. */
+	void (*interp) (struct _xcal *p, double *out, double *in);
+
+	/* Translate a value backwards through the curves. */
+	/* Return nz if the inversion fails */ 
+	int (*inv_interp) (struct _xcal *p, double *out, double *in);
+
+	/* Translate a value through one of the curves */
+	double (*interp_ch) (struct _xcal *p, int ch, double in);
+
+	/* Translate a value backwards through one of the curves */
+	/* Return -1.0 if the inversion fails */
+	double (*inv_interp_ch) (struct _xcal *p, int ch, double in);
+
+	int noramdac;			/* Set to nz if there was no VideoLUT access */
+
+  /* Private: */
+	icProfileClassSignature devclass;	/* Type of device */
+	inkmask devmask;					/* ICX ink mask of device space */
+	icColorSpaceSignature colspace;		/* Corresponding ICC device space sig (0 if none) */
+	int devchan;			/* Number of chanels in device space */
+	profxinf xpi;			/* Extra calibration description information */
+
+	char err[CGATS_ERRM_LENGTH];		/* Error message */
+	int errc;							/* Error code */
+
+	rspl *cals[MAX_CHAN];
+	
+}; typedef struct _xcal xcal;
+
+/* Create a new, uninitialised xcal */
+xcal *new_xcal(void);
+
+#endif /* XCAL */
+