Used synchronise script to update files

1 files changed, 395 insertions, 395 deletions

diff --git a/libX11/src/xcms/xyY.c b/libX11/src/xcms/xyY.c
index 6f9457496..6f6562621 100644
--- a/libX11/src/xcms/xyY.c
+++ b/libX11/src/xcms/xyY.c
@@ -1,395 +1,395 @@
-
-/*
- * 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
- *		CIExyY.c
- *
- *	DESCRIPTION
- *		This file contains routines that support the CIE xyY
- *		color space to include conversions to and from the CIE
- *		XYZ space.
- *
- *	DOCUMENTATION
- *		"TekColor Color Management System, System Implementor's Manual"
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdio.h>
-#include <X11/Xos.h>
-#include "Xlibint.h"
-#include "Xcmsint.h"
-#include "Cv.h"
-
-/*
- *	DEFINES
- */
-#define EPS 0.00001	/* some extremely small number */
-#ifdef DBL_EPSILON
-#  define XMY_DBL_EPSILON DBL_EPSILON
-#else
-#  define XMY_DBL_EPSILON 0.00001
-#endif
-
-/*
- *	FORWARD DECLARATIONS
- */
-
-static int CIExyY_ParseString(register char *spec, XcmsColor *pColor);
-static Status XcmsCIExyY_ValidSpec(XcmsColor *pColor);
-
-
-/*
- *	LOCAL VARIABLES
- */
-
-    /*
-     * NULL terminated list of functions applied to get from CIExyY to CIEXYZ
-     */
-static XcmsConversionProc Fl_CIExyY_to_CIEXYZ[] = {
-    XcmsCIExyYToCIEXYZ,
-    NULL
-};
-
-    /*
-     * NULL terminated list of functions applied to get from CIEXYZ to CIExyY
-     */
-static XcmsConversionProc Fl_CIEXYZ_to_CIExyY[] = {
-    XcmsCIEXYZToCIExyY,
-    NULL
-};
-
-
-/*
- *	GLOBALS
- */
-
-    /*
-     * CIE xyY Color Space
-     */
-XcmsColorSpace	XcmsCIExyYColorSpace =
-    {
-	_XcmsCIExyY_prefix,	/* prefix */
-	XcmsCIExyYFormat,		/* id */
-	CIExyY_ParseString,	/* parseString */
-	Fl_CIExyY_to_CIEXYZ,	/* to_CIEXYZ */
-	Fl_CIEXYZ_to_CIExyY,	/* from_CIEXYZ */
-	1
-    };
-
-
-
-/************************************************************************
- *									*
- *			 PRIVATE ROUTINES				*
- *									*
- ************************************************************************/
-
-/*
- *	NAME
- *		CIExyY_ParseString
- *
- *	SYNOPSIS
- */
-static int
-CIExyY_ParseString(
-    register char *spec,
-    XcmsColor *pColor)
-/*
- *	DESCRIPTION
- *		This routines takes a string and attempts to convert
- *		it into a XcmsColor structure with XcmsCIExyYFormat.
- *		The assumed CIExyY string syntax is:
- *		    CIExyY:<x>/<y>/<Y>
- *		Where x, y, and Y 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
- *		0 if failed, non-zero otherwise.
- */
-{
-    int n;
-    char *pchar;
-
-    if ((pchar = strchr(spec, ':')) == NULL) {
-	return(XcmsFailure);
-    }
-    n = (int)(pchar - spec);
-
-    /*
-     * Check for proper prefix.
-     */
-    if (strncmp(spec, _XcmsCIExyY_prefix, n) != 0) {
-	return(XcmsFailure);
-    }
-
-    /*
-     * Attempt to parse the value portion.
-     */
-    if (sscanf(spec + n + 1, "%lf/%lf/%lf",
-	    &pColor->spec.CIExyY.x,
-	    &pColor->spec.CIExyY.y,
-	    &pColor->spec.CIExyY.Y) != 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.CIExyY.x,
-		       &pColor->spec.CIExyY.y,
-		       &pColor->spec.CIExyY.Y) != 3) {
-                free(s);
-                return(XcmsFailure);
-            }
-            free(s);
-        } else
-	    return(XcmsFailure);
-    }
-    pColor->format = XcmsCIExyYFormat;
-    pColor->pixel = 0;
-    return(XcmsCIExyY_ValidSpec(pColor));
-}
-
-
-
-/************************************************************************
- *									*
- *			 PUBLIC ROUTINES				*
- *									*
- ************************************************************************/
-
-/*
- *	NAME
- *		CIExyY_ValidSpec()
- *
- *	SYNOPSIS
- */
-static Status
-XcmsCIExyY_ValidSpec(
-    XcmsColor *pColor)
-/*
- *	DESCRIPTION
- *		Checks a valid CIExyY color specification.
- *
- *	RETURNS
- *		XcmsFailure if invalid.
- *		XcmsSuccess if valid.
- *
- */
-{
-    if (pColor->format != XcmsCIExyYFormat
-	    ||
-	    (pColor->spec.CIExyY.x < 0.0 - XMY_DBL_EPSILON)
-	    ||
-	    (pColor->spec.CIExyY.x > 1.0 + XMY_DBL_EPSILON)
-	    ||
-	    (pColor->spec.CIExyY.y < 0.0 - XMY_DBL_EPSILON)
-	    ||
-	    (pColor->spec.CIExyY.y > 1.0 + XMY_DBL_EPSILON)
-	    ||
-	    (pColor->spec.CIExyY.Y < 0.0 - XMY_DBL_EPSILON)
-	    ||
-	    (pColor->spec.CIExyY.Y > 1.0 + XMY_DBL_EPSILON)) {
-	return(XcmsFailure);
-    }
-    return(XcmsSuccess);
-}
-
-
-/*
- *	NAME
- *		XcmsCIExyYToCIEXYZ - convert CIExyY to CIEXYZ
- *
- *	SYNOPSIS
- */
-Status
-XcmsCIExyYToCIEXYZ(
-    XcmsCCC ccc,
-    XcmsColor *pxyY_WhitePt,
-    XcmsColor *pColors_in_out,
-    unsigned int nColors)
-/*
- *	DESCRIPTION
- *		Converts color specifications in an array of XcmsColor
- *		structures from CIExyY format to CIEXYZ format.
- *
- *	RETURNS
- *		XcmsFailure if failed,
- *		XcmsSuccess if succeeded.
- */
-{
-    XcmsColor	*pColor = pColors_in_out;
-    XcmsColor	whitePt;
-    XcmsCIEXYZ	XYZ_return;
-    XcmsFloat	div;		/* temporary storage in case divisor is zero */
-    XcmsFloat	u, v, x, y, z;	/* temporary storage */
-    register int i;
-
-    /*
-     * Check arguments
-     */
-    if (pxyY_WhitePt == NULL || pColors_in_out == NULL) {
-	return(XcmsFailure);
-    }
-
-
-    /*
-     * Now convert each XcmsColor structure to CIEXYZ form
-     */
-    for (i = 0; i < nColors; i++, pColor++) {
-	/* Make sure original format is CIExyY and valid */
-	if (!XcmsCIExyY_ValidSpec(pColor)) {
-	    return(XcmsFailure);
-	}
-
-	if ((div = (-2 * pColor->spec.CIExyY.x) + (12 * pColor->spec.CIExyY.y) + 3) == 0.0) {
-	    /* Note that the divisor is zero */
-	    /* This return is abitrary. */
-	    XYZ_return.X = 0;
-	    XYZ_return.Y = 0;
-	    XYZ_return.Z = 0;
-	} else {
-	    /*
-	     * Make sure white point is in CIEXYZ form
-	     */
-	    if (pxyY_WhitePt->format != XcmsCIEXYZFormat) {
-		/* Make copy of the white point because we're going to modify it */
-		memcpy((char *)&whitePt, (char *)pxyY_WhitePt, sizeof(XcmsColor));
-		if (!_XcmsDIConvertColors(ccc, &whitePt, (XcmsColor *)NULL, 1,
-			XcmsCIEXYZFormat)) {
-		    return(XcmsFailure);
-		}
-		pxyY_WhitePt = &whitePt;
-	    }
-
-	    /* Make sure it is a white point, i.e., Y == 1.0 */
-	    if (pxyY_WhitePt->spec.CIEXYZ.Y != 1.0) {
-		return(XcmsFailure);
-	    }
-
-	    /* Convert from xyY to uvY to XYZ */
-	    u = (4 * pColor->spec.CIExyY.x) / div;
-	    v = (9 * pColor->spec.CIExyY.y) / div;
-	    div = (6.0 * u) - (16.0 * v) + 12.0;
-	    if (div == 0.0) {
-		/* Note that the divisor is zero */
-		/* This return is abitrary. */
-		if ((div = (6.0 * whitePt.spec.CIEuvY.u_prime) -
-		           (16.0 * whitePt.spec.CIEuvY.v_prime) + 12.0) == 0.0) {
-		    div = EPS;
-		}
-		x = 9.0 * whitePt.spec.CIEuvY.u_prime / div;
-		y = 4.0 * whitePt.spec.CIEuvY.u_prime / div;
-	    } else {
-		/* convert u, v to small xyz */
-		x = 9.0 * u / div;
-		y = 4.0 * v / div;
-	    }
-	    z = 1.0 - x - y;
-	    if (y == 0.0) y = EPS;	/* Have to worry about divide by 0 */
-	    XYZ_return.Y = pColor->spec.CIExyY.Y;
-	    XYZ_return.X = x * XYZ_return.Y / y;
-	    XYZ_return.Z = z * XYZ_return.Y / y;
-	}
-
-	/* Copy result to pColor */
-	memcpy ((char *)&pColor->spec, (char *)&XYZ_return, sizeof(XcmsCIEXYZ));
-
-	/* Identify that the format is now CIEXYZ */
-	pColor->format = XcmsCIEXYZFormat;
-    }
-    return(XcmsSuccess);
-}
-
-
-/*
- *	NAME
- *		XcmsCIEXYZToCIExyY - convert CIEXYZ to CIExyY
- *
- *	SYNOPSIS
- */
-/* ARGSUSED */
-Status
-XcmsCIEXYZToCIExyY(
-    XcmsCCC ccc,
-    XcmsColor *pxyY_WhitePt,
-    XcmsColor *pColors_in_out,
-    unsigned int nColors)
-/*
- *	DESCRIPTION
- *		Converts color specifications in an array of XcmsColor
- *		structures from CIEXYZ format to CIExyY format.
- *
- *	RETURNS
- *		XcmsFailure if failed,
- *		XcmsSuccess if succeeded.
- *
- */
-{
-    XcmsColor	*pColor = pColors_in_out;
-    XcmsCIExyY	xyY_return;
-    XcmsFloat	div;		/* temporary storage in case divisor is zero */
-    register int i;
-
-    /*
-     * Check arguments
-     * 		pxyY_WhitePt ignored
-     */
-    if (pColors_in_out == NULL) {
-	return(XcmsFailure);
-    }
-
-    /*
-     * Now convert each XcmsColor structure to CIEXYZ form
-     */
-    for (i = 0; i < nColors; i++, pColor++) {
-
-	if (!_XcmsCIEXYZ_ValidSpec(pColor)) {
-	    return(XcmsFailure);
-	}
-	/* Now convert for XYZ to xyY */
-	if ((div = pColor->spec.CIEXYZ.X + pColor->spec.CIEXYZ.Y + pColor->spec.CIEXYZ.Z) == 0.0) {
-	    div = EPS;
-	}
-	xyY_return.x = pColor->spec.CIEXYZ.X / div;
-	xyY_return.y = pColor->spec.CIEXYZ.Y / div;
-	xyY_return.Y = pColor->spec.CIEXYZ.Y;
-
-	/* Copy result to pColor */
-	memcpy ((char *)&pColor->spec, (char *)&xyY_return, sizeof(XcmsCIExyY));
-
-	/* Identify that the format is now CIEXYZ */
-	pColor->format = XcmsCIExyYFormat;
-    }
-    return(XcmsSuccess);
-}
+

+/*

+ * 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

+ *		CIExyY.c

+ *

+ *	DESCRIPTION

+ *		This file contains routines that support the CIE xyY

+ *		color space to include conversions to and from the CIE

+ *		XYZ space.

+ *

+ *	DOCUMENTATION

+ *		"TekColor Color Management System, System Implementor's Manual"

+ */

+

+#ifdef HAVE_CONFIG_H

+#include <config.h>

+#endif

+#include <stdio.h>

+#include <X11/Xos.h>

+#include "Xlibint.h"

+#include "Xcmsint.h"

+#include "Cv.h"

+

+/*

+ *	DEFINES

+ */

+#define EPS 0.00001	/* some extremely small number */

+#ifdef DBL_EPSILON

+#  define XMY_DBL_EPSILON DBL_EPSILON

+#else

+#  define XMY_DBL_EPSILON 0.00001

+#endif

+

+/*

+ *	FORWARD DECLARATIONS

+ */

+

+static int CIExyY_ParseString(register char *spec, XcmsColor *pColor);

+static Status XcmsCIExyY_ValidSpec(XcmsColor *pColor);

+

+

+/*

+ *	LOCAL VARIABLES

+ */

+

+    /*

+     * NULL terminated list of functions applied to get from CIExyY to CIEXYZ

+     */

+static XcmsConversionProc Fl_CIExyY_to_CIEXYZ[] = {

+    XcmsCIExyYToCIEXYZ,

+    NULL

+};

+

+    /*

+     * NULL terminated list of functions applied to get from CIEXYZ to CIExyY

+     */

+static XcmsConversionProc Fl_CIEXYZ_to_CIExyY[] = {

+    XcmsCIEXYZToCIExyY,

+    NULL

+};

+

+

+/*

+ *	GLOBALS

+ */

+

+    /*

+     * CIE xyY Color Space

+     */

+XcmsColorSpace	XcmsCIExyYColorSpace =

+    {

+	_XcmsCIExyY_prefix,	/* prefix */

+	XcmsCIExyYFormat,		/* id */

+	CIExyY_ParseString,	/* parseString */

+	Fl_CIExyY_to_CIEXYZ,	/* to_CIEXYZ */

+	Fl_CIEXYZ_to_CIExyY,	/* from_CIEXYZ */

+	1

+    };

+

+

+

+/************************************************************************

+ *									*

+ *			 PRIVATE ROUTINES				*

+ *									*

+ ************************************************************************/

+

+/*

+ *	NAME

+ *		CIExyY_ParseString

+ *

+ *	SYNOPSIS

+ */

+static int

+CIExyY_ParseString(

+    register char *spec,

+    XcmsColor *pColor)

+/*

+ *	DESCRIPTION

+ *		This routines takes a string and attempts to convert

+ *		it into a XcmsColor structure with XcmsCIExyYFormat.

+ *		The assumed CIExyY string syntax is:

+ *		    CIExyY:<x>/<y>/<Y>

+ *		Where x, y, and Y 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

+ *		0 if failed, non-zero otherwise.

+ */

+{

+    int n;

+    char *pchar;

+

+    if ((pchar = strchr(spec, ':')) == NULL) {

+	return(XcmsFailure);

+    }

+    n = (int)(pchar - spec);

+

+    /*

+     * Check for proper prefix.

+     */

+    if (strncmp(spec, _XcmsCIExyY_prefix, n) != 0) {

+	return(XcmsFailure);

+    }

+

+    /*

+     * Attempt to parse the value portion.

+     */

+    if (sscanf(spec + n + 1, "%lf/%lf/%lf",

+	    &pColor->spec.CIExyY.x,

+	    &pColor->spec.CIExyY.y,

+	    &pColor->spec.CIExyY.Y) != 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.CIExyY.x,

+		       &pColor->spec.CIExyY.y,

+		       &pColor->spec.CIExyY.Y) != 3) {

+                free(s);

+                return(XcmsFailure);

+            }

+            free(s);

+        } else

+	    return(XcmsFailure);

+    }

+    pColor->format = XcmsCIExyYFormat;

+    pColor->pixel = 0;

+    return(XcmsCIExyY_ValidSpec(pColor));

+}

+

+

+

+/************************************************************************

+ *									*

+ *			 PUBLIC ROUTINES				*

+ *									*

+ ************************************************************************/

+

+/*

+ *	NAME

+ *		CIExyY_ValidSpec()

+ *

+ *	SYNOPSIS

+ */

+static Status

+XcmsCIExyY_ValidSpec(

+    XcmsColor *pColor)

+/*

+ *	DESCRIPTION

+ *		Checks a valid CIExyY color specification.

+ *

+ *	RETURNS

+ *		XcmsFailure if invalid.

+ *		XcmsSuccess if valid.

+ *

+ */

+{

+    if (pColor->format != XcmsCIExyYFormat

+	    ||

+	    (pColor->spec.CIExyY.x < 0.0 - XMY_DBL_EPSILON)

+	    ||

+	    (pColor->spec.CIExyY.x > 1.0 + XMY_DBL_EPSILON)

+	    ||

+	    (pColor->spec.CIExyY.y < 0.0 - XMY_DBL_EPSILON)

+	    ||

+	    (pColor->spec.CIExyY.y > 1.0 + XMY_DBL_EPSILON)

+	    ||

+	    (pColor->spec.CIExyY.Y < 0.0 - XMY_DBL_EPSILON)

+	    ||

+	    (pColor->spec.CIExyY.Y > 1.0 + XMY_DBL_EPSILON)) {

+	return(XcmsFailure);

+    }

+    return(XcmsSuccess);

+}

+

+

+/*

+ *	NAME

+ *		XcmsCIExyYToCIEXYZ - convert CIExyY to CIEXYZ

+ *

+ *	SYNOPSIS

+ */

+Status

+XcmsCIExyYToCIEXYZ(

+    XcmsCCC ccc,

+    XcmsColor *pxyY_WhitePt,

+    XcmsColor *pColors_in_out,

+    unsigned int nColors)

+/*

+ *	DESCRIPTION

+ *		Converts color specifications in an array of XcmsColor

+ *		structures from CIExyY format to CIEXYZ format.

+ *

+ *	RETURNS

+ *		XcmsFailure if failed,

+ *		XcmsSuccess if succeeded.

+ */

+{

+    XcmsColor	*pColor = pColors_in_out;

+    XcmsColor	whitePt;

+    XcmsCIEXYZ	XYZ_return;

+    XcmsFloat	div;		/* temporary storage in case divisor is zero */

+    XcmsFloat	u, v, x, y, z;	/* temporary storage */

+    register int i;

+

+    /*

+     * Check arguments

+     */

+    if (pxyY_WhitePt == NULL || pColors_in_out == NULL) {

+	return(XcmsFailure);

+    }

+

+

+    /*

+     * Now convert each XcmsColor structure to CIEXYZ form

+     */

+    for (i = 0; i < nColors; i++, pColor++) {

+	/* Make sure original format is CIExyY and valid */

+	if (!XcmsCIExyY_ValidSpec(pColor)) {

+	    return(XcmsFailure);

+	}

+

+	if ((div = (-2 * pColor->spec.CIExyY.x) + (12 * pColor->spec.CIExyY.y) + 3) == 0.0) {

+	    /* Note that the divisor is zero */

+	    /* This return is abitrary. */

+	    XYZ_return.X = 0;

+	    XYZ_return.Y = 0;

+	    XYZ_return.Z = 0;

+	} else {

+	    /*

+	     * Make sure white point is in CIEXYZ form

+	     */

+	    if (pxyY_WhitePt->format != XcmsCIEXYZFormat) {

+		/* Make copy of the white point because we're going to modify it */

+		memcpy((char *)&whitePt, (char *)pxyY_WhitePt, sizeof(XcmsColor));

+		if (!_XcmsDIConvertColors(ccc, &whitePt, (XcmsColor *)NULL, 1,

+			XcmsCIEXYZFormat)) {

+		    return(XcmsFailure);

+		}

+		pxyY_WhitePt = &whitePt;

+	    }

+

+	    /* Make sure it is a white point, i.e., Y == 1.0 */

+	    if (pxyY_WhitePt->spec.CIEXYZ.Y != 1.0) {

+		return(XcmsFailure);

+	    }

+

+	    /* Convert from xyY to uvY to XYZ */

+	    u = (4 * pColor->spec.CIExyY.x) / div;

+	    v = (9 * pColor->spec.CIExyY.y) / div;

+	    div = (6.0 * u) - (16.0 * v) + 12.0;

+	    if (div == 0.0) {

+		/* Note that the divisor is zero */

+		/* This return is abitrary. */

+		if ((div = (6.0 * whitePt.spec.CIEuvY.u_prime) -

+		           (16.0 * whitePt.spec.CIEuvY.v_prime) + 12.0) == 0.0) {

+		    div = EPS;

+		}

+		x = 9.0 * whitePt.spec.CIEuvY.u_prime / div;

+		y = 4.0 * whitePt.spec.CIEuvY.u_prime / div;

+	    } else {

+		/* convert u, v to small xyz */

+		x = 9.0 * u / div;

+		y = 4.0 * v / div;

+	    }

+	    z = 1.0 - x - y;

+	    if (y == 0.0) y = EPS;	/* Have to worry about divide by 0 */

+	    XYZ_return.Y = pColor->spec.CIExyY.Y;

+	    XYZ_return.X = x * XYZ_return.Y / y;

+	    XYZ_return.Z = z * XYZ_return.Y / y;

+	}

+

+	/* Copy result to pColor */

+	memcpy ((char *)&pColor->spec, (char *)&XYZ_return, sizeof(XcmsCIEXYZ));

+

+	/* Identify that the format is now CIEXYZ */

+	pColor->format = XcmsCIEXYZFormat;

+    }

+    return(XcmsSuccess);

+}

+

+

+/*

+ *	NAME

+ *		XcmsCIEXYZToCIExyY - convert CIEXYZ to CIExyY

+ *

+ *	SYNOPSIS

+ */

+/* ARGSUSED */

+Status

+XcmsCIEXYZToCIExyY(

+    XcmsCCC ccc,

+    XcmsColor *pxyY_WhitePt,

+    XcmsColor *pColors_in_out,

+    unsigned int nColors)

+/*

+ *	DESCRIPTION

+ *		Converts color specifications in an array of XcmsColor

+ *		structures from CIEXYZ format to CIExyY format.

+ *

+ *	RETURNS

+ *		XcmsFailure if failed,

+ *		XcmsSuccess if succeeded.

+ *

+ */

+{

+    XcmsColor	*pColor = pColors_in_out;

+    XcmsCIExyY	xyY_return;

+    XcmsFloat	div;		/* temporary storage in case divisor is zero */

+    register int i;

+

+    /*

+     * Check arguments

+     * 		pxyY_WhitePt ignored

+     */

+    if (pColors_in_out == NULL) {

+	return(XcmsFailure);

+    }

+

+    /*

+     * Now convert each XcmsColor structure to CIEXYZ form

+     */

+    for (i = 0; i < nColors; i++, pColor++) {

+

+	if (!_XcmsCIEXYZ_ValidSpec(pColor)) {

+	    return(XcmsFailure);

+	}

+	/* Now convert for XYZ to xyY */

+	if ((div = pColor->spec.CIEXYZ.X + pColor->spec.CIEXYZ.Y + pColor->spec.CIEXYZ.Z) == 0.0) {

+	    div = EPS;

+	}

+	xyY_return.x = pColor->spec.CIEXYZ.X / div;

+	xyY_return.y = pColor->spec.CIEXYZ.Y / div;

+	xyY_return.Y = pColor->spec.CIEXYZ.Y;

+

+	/* Copy result to pColor */

+	memcpy ((char *)&pColor->spec, (char *)&xyY_return, sizeof(XcmsCIExyY));

+

+	/* Identify that the format is now CIEXYZ */

+	pColor->format = XcmsCIExyYFormat;

+    }

+    return(XcmsSuccess);

+}