Merge branch 'sunweaver-pr/libnx-x11-autoreconf' into 3.6.x

Attributes GH PR #498: https://github.com/ArcticaProject/nx-libs/pull/498

1 files changed, 203 insertions, 0 deletions

diff --git a/nx-X11/lib/src/xcms/XYZ.c b/nx-X11/lib/src/xcms/XYZ.c
new file mode 100644
index 000000000..826565773
--- /dev/null
+++ b/nx-X11/lib/src/xcms/XYZ.c
@@ -0,0 +1,203 @@
+
+/*
+ * Code and supporting documentation (c) Copyright 1990 1991 Tektronix, Inc.
+ * 	All Rights Reserved
+ *
+ * This file is a component of an X Window System-specific implementation
+ * of XCMS based on the TekColor Color Management System.  Permission is
+ * hereby granted to use, copy, modify, sell, and otherwise distribute this
+ * software and its documentation for any purpose and without fee, provided
+ * that this copyright, permission, and disclaimer notice is reproduced in
+ * all copies of this software and in supporting documentation.  TekColor
+ * is a trademark of Tektronix, Inc.
+ *
+ * Tektronix makes no representation about the suitability of this software
+ * for any purpose.  It is provided "as is" and with all faults.
+ *
+ * TEKTRONIX DISCLAIMS ALL WARRANTIES APPLICABLE TO THIS SOFTWARE,
+ * INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE.  IN NO EVENT SHALL TEKTRONIX BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR THE PERFORMANCE OF THIS SOFTWARE.
+ *
+ *
+ *
+ *	NAME
+ *		CIEXYZ.c
+ *
+ *	DESCRIPTION
+ *		CIE XYZ Color Space
+ *
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <nx-X11/Xos.h>
+#include "Xlibint.h"
+#include "Xcmsint.h"
+#include "Cv.h"
+
+#include <stdio.h> /* sscanf */
+
+/*
+ *	DEFINES
+ *		Internal definitions that need NOT be exported to any package
+ *		or program using this package.
+ */
+#ifdef DBL_EPSILON
+#  define XMY_DBL_EPSILON DBL_EPSILON
+#else
+#  define XMY_DBL_EPSILON 0.00001
+#endif
+
+/*
+ *      FORWARD DECLARATIONS
+ */
+static int CIEXYZ_ParseString(register char *spec, XcmsColor *pColor);
+
+/*
+ *      LOCALS VARIABLES
+ */
+
+static XcmsConversionProc Fl_CIEXYZ_to_CIEXYZ[] = {
+    NULL
+};
+
+
+
+/*
+ *      GLOBALS
+ *              Variables declared in this package that are allowed
+ *		to be used globally.
+ */
+    /*
+     * CIE XYZ Color Space
+     */
+XcmsColorSpace	XcmsCIEXYZColorSpace =
+    {
+	_XcmsCIEXYZ_prefix,		/* prefix */
+	XcmsCIEXYZFormat,		/* id */
+	CIEXYZ_ParseString,	/* parseString */
+	Fl_CIEXYZ_to_CIEXYZ,	/* to_CIEXYZ */
+	Fl_CIEXYZ_to_CIEXYZ,	/* from_CIEXYZ */
+	1
+    };
+
+
+/************************************************************************
+ *									*
+ *			PRIVATE ROUTINES				*
+ *									*
+ ************************************************************************/
+
+/*
+ *	NAME
+ *		CIEXYZ_ParseString
+ *
+ *	SYNOPSIS
+ */
+static int
+CIEXYZ_ParseString(
+    register char *spec,
+    XcmsColor *pColor)
+/*
+ *	DESCRIPTION
+ *		This routines takes a string and attempts to convert
+ *		it into a XcmsColor structure with XcmsCIEXYZFormat.
+ *		The assumed CIEXYZ string syntax is:
+ *		    CIEXYZ:<X>/<Y>/<Z>
+ *		Where X, Y, and Z are in string input format for floats
+ *		consisting of:
+ *		    a. an optional sign
+ *		    b. a string of numbers possibly containing a decimal point,
+ *		    c. an optional exponent field containing an 'E' or 'e'
+ *			followed by a possibly signed integer string.
+ *
+ *	RETURNS
+ */
+{
+    size_t n;
+    char *pchar;
+
+    if ((pchar = strchr(spec, ':')) == NULL) {
+	return(XcmsFailure);
+    }
+    n = (size_t)(pchar - spec);
+
+    /*
+     * Check for proper prefix.
+     */
+    if (strncmp(spec, _XcmsCIEXYZ_prefix, n) != 0) {
+	return(XcmsFailure);
+    }
+
+    /*
+     * Attempt to parse the value portion.
+     */
+    if (sscanf(spec + n + 1, "%lf/%lf/%lf",
+	    &pColor->spec.CIEXYZ.X,
+	    &pColor->spec.CIEXYZ.Y,
+	    &pColor->spec.CIEXYZ.Z) != 3) {
+	char *s; /* Maybe failed due to locale */
+	int f;
+	if ((s = strdup(spec))) {
+	    for (f = 0; s[f]; ++f)
+		if (s[f] == '.')
+		    s[f] = ',';
+		else if (s[f] == ',')
+		    s[f] = '.';
+	    if (sscanf(s + n + 1, "%lf/%lf/%lf",
+		       &pColor->spec.CIEXYZ.X,
+		       &pColor->spec.CIEXYZ.Y,
+		       &pColor->spec.CIEXYZ.Z) != 3) {
+		free(s);
+		return(XcmsFailure);
+	    }
+	    free(s);
+	} else
+	    return(XcmsFailure);
+    }
+    pColor->format = XcmsCIEXYZFormat;
+    pColor->pixel = 0;
+    return(_XcmsCIEXYZ_ValidSpec(pColor));
+}
+
+
+/************************************************************************
+ *									*
+ *			PUBLIC ROUTINES 				*
+ *									*
+ ************************************************************************/
+
+/*
+ *	NAME
+ *		XcmsCIELab_ValidSpec
+ *
+ *	SYNOPSIS
+ */
+Status
+_XcmsCIEXYZ_ValidSpec(
+    XcmsColor *pColor)
+/*
+ *	DESCRIPTION
+ *		Checks if color specification valid for CIE XYZ
+ *
+ *	RETURNS
+ *		XcmsFailure if invalid,
+ *		XcmsSuccess if valid.
+ *
+ */
+{
+    if (pColor->format != XcmsCIEXYZFormat
+	    ||
+	    (pColor->spec.CIEXYZ.Y < 0.0 - XMY_DBL_EPSILON)
+	    ||
+	    (pColor->spec.CIEXYZ.Y > 1.0 + XMY_DBL_EPSILON)) {
+	return(XcmsFailure);
+    }
+    return(XcmsSuccess);
+}