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/xdevlin.h | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 xicc/xdevlin.h

(limited to 'xicc/xdevlin.h')

diff --git a/xicc/xdevlin.h b/xicc/xdevlin.h
new file mode 100644
index 0000000..7e51e40
--- /dev/null
+++ b/xicc/xdevlin.h
@@ -0,0 +1,96 @@
+#ifndef XDEVLIN_H
+#define XDEVLIN_H
+/* 
+ * International Color Consortium color transform expanded support
+ *
+ * Author:  Graeme W. Gill
+ * Date:    29/8/01
+ * Version: 1.00
+ *
+ * Copyright 2001 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 handles the creation of device chanel linearisation
+ * curves, given a callback function that maps the device chanels
+ * to the value that should be linearised.
+ *
+ * This class is independent of other icc or icx classes.
+ *
+ * Its usual use is to create an Lab linerisation curve
+ * for native XYZ profiles.
+ */
+
+/* The device linearisation class */
+struct _xdevlin {
+
+	/* Private: */
+	int di;					/* Device dimentionality */
+	rspl *curves[MXDI];		/* di Linearisation curves */
+	double clipc[MXDI];		/* center of device range */
+	double min[MXDI], max[MXDI];	/* Device chanel min/max */
+	int pol;				/* Polarity, 0 for minimise other chanels */
+	int setch;				/* Chanel to set */
+	double lmin, lmax;		/* Linear min & max to rescale */
+	void *lucntx;			/* Lookup context */
+	void (*lookup) (void *lucntx, double *lin, double *dev);	/* Callback function */
+
+	/* Public: */
+	void (*del)(struct _xdevlin *p);
+
+	/* Return the linearisation values given the device values */
+	void (*lin)(struct _xdevlin *p, double *out, double *in);
+
+	/* Return the inverse linearisation */
+	void (*invlin)(struct _xdevlin *p, double *out, double *in);
+
+}; typedef struct _xdevlin xdevlin;
+
+xdevlin *new_xdevlin(
+	int di,				/* Device dimenstionality */
+	double *min, double *max,	/* Min & max range of device values, NULL = 0.0 - 1.0 */ 
+	void *cntx,			/* Context for callback */
+	void (*lookup) (void *cntx, double lin[MXDO], double dev[MXDI])
+						/* Callback function, return linear parameter as lin[0] */
+);
+
+#endif /* XDEVLIN_H */
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-- 
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