Merge remote-tracking branch 'origin/released'

Conflicts:
	fontconfig/.gitignore
	libX11/src/ConvSel.c
	libX11/src/CrGlCur.c
	libX11/src/CrWindow.c
	libX11/src/GetDflt.c
	libX11/src/Window.c
	libX11/src/xlibi18n/XimProto.h
	libX11/src/xlibi18n/lcDynamic.c
	libxcb/src/.gitignore
	libxcb/src/xcb_ext.c
	libxcb/src/xcb_xid.c
	mesalib/src/glsl/.gitignore
	mesalib/src/glsl/glcpp/.gitignore
	mesalib/src/mapi/glapi/gen/glX_API.xml
	mesalib/src/mapi/glapi/glapi_getproc.c
	mesalib/src/mesa/main/.gitignore
	mesalib/src/mesa/main/syncobj.c
	mesalib/src/mesa/program/.gitignore
	xkbcomp/listing.c
	xkbcomp/xkbpath.c
	xorg-server/.gitignore
	xorg-server/Xext/xvmain.c
	xorg-server/dix/dispatch.c
	xorg-server/hw/xwin/glx/winpriv.h
	xorg-server/hw/xwin/winprefsyacc.y
	xorg-server/hw/xwin/winscrinit.c
	xorg-server/xkeyboard-config/rules/bin/ml1_s.sh
	xorg-server/xkeyboard-config/rules/bin/ml1v1_s.sh
	xorg-server/xkeyboard-config/rules/bin/ml1v_s.sh
	xorg-server/xkeyboard-config/rules/bin/ml_s.sh
	xorg-server/xkeyboard-config/rules/bin/mlv_s.sh
	xorg-server/xkeyboard-config/rules/compat/.gitignore

1 files changed, 625 insertions, 625 deletions

diff --git a/libX11/src/xcms/HVC.c b/libX11/src/xcms/HVC.c
index 80f1735cf..c5c9823e2 100644
--- a/libX11/src/xcms/HVC.c
+++ b/libX11/src/xcms/HVC.c
@@ -1,625 +1,625 @@
-
-/*
- * 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.  TekColor is a
- * trademark of Tektronix, Inc.  The term "TekHVC" designates a particular
- * color space that is the subject of U.S. Patent No. 4,985,853 (equivalent
- * foreign patents pending).  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:
- *
- * 1. This copyright, permission, and disclaimer notice is reproduced in
- *    all copies of this software and any modification thereof and in
- *    supporting documentation;
- * 2. Any color-handling application which displays TekHVC color
- *    cooordinates identifies these as TekHVC color coordinates in any
- *    interface that displays these coordinates and in any associated
- *    documentation;
- * 3. The term "TekHVC" is always used, and is only used, in association
- *    with the mathematical derivations of the TekHVC Color Space,
- *    including those provided in this file and any equivalent pathways and
- *    mathematical derivations, regardless of digital (e.g., floating point
- *    or integer) representation.
- *
- * 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
- *		TekHVC.c
- *
- *	DESCRIPTION
- *		This file contains routines that support the TekHVC
- *		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 "Xlibint.h"
-#include "Xcmsint.h"
-#include <X11/Xos.h>
-#include <math.h>
-#include "Cv.h"
-
-#include <stdio.h>
-
-/*
- *	DEFINES
- */
-#define u_BR    0.7127          /* u' Best Red */
-#define v_BR    0.4931          /* v' Best Red */
-#define EPS     0.001
-#define CHROMA_SCALE_FACTOR   7.50725
-#ifndef PI
-#  ifdef M_PI
-#    define PI	M_PI
-#  else
-#    define PI       3.14159265358979323846264338327950
-#  endif
-#endif
-#ifndef degrees
-#  define degrees(r) ((XcmsFloat)(r) * 180.0 / PI)
-#endif /* degrees */
-#ifndef radians
-#  define radians(d) ((XcmsFloat)(d) * PI / 180.0)
-#endif /* radians */
-
-/*************************************************************************
- * Note: The DBL_EPSILON for ANSI is 1e-5 so my checks need to take
- *       this into account.  If your DBL_EPSILON is different then
- *       adjust this define.
- *
- *       Also note that EPS is the error factor in the calculations
- *       This may need to be the same as XMY_DBL_EPSILON in
- *       some implementations.
- **************************************************************************/
-#ifdef DBL_EPSILON
-#  define XMY_DBL_EPSILON DBL_EPSILON
-#else
-#  define XMY_DBL_EPSILON 0.00001
-#endif
-
-/*
- *	FORWARD DECLARATIONS
- */
-static int TekHVC_ParseString(register char *spec, XcmsColor *pColor);
-static Status XcmsTekHVC_ValidSpec(XcmsColor *pColor);
-
-/*
- *	LOCAL VARIABLES
- */
-
-    /*
-     * NULL terminated list of functions applied to get from TekHVC to CIEXYZ
-     */
-static XcmsConversionProc Fl_TekHVC_to_CIEXYZ[] = {
-    XcmsTekHVCToCIEuvY,
-    XcmsCIEuvYToCIEXYZ,
-    NULL
-};
-
-    /*
-     * NULL terminated list of functions applied to get from CIEXYZ to TekHVC
-     */
-static XcmsConversionProc Fl_CIEXYZ_to_TekHVC[] = {
-    XcmsCIEXYZToCIEuvY,
-    XcmsCIEuvYToTekHVC,
-    NULL
-};
-
-/*
- *	GLOBALS
- */
-
-    /*
-     * TekHVC Color Space
-     */
-XcmsColorSpace	XcmsTekHVCColorSpace =
-    {
-	_XcmsTekHVC_prefix,	/* prefix */
-	XcmsTekHVCFormat,		/* id */
-	TekHVC_ParseString,	/* parseString */
-	Fl_TekHVC_to_CIEXYZ,	/* to_CIEXYZ */
-	Fl_CIEXYZ_to_TekHVC,	/* from_CIEXYZ */
-	1
-    };
-
-
-
-
-/************************************************************************
- *									*
- *			 PRIVATE ROUTINES				*
- *									*
- ************************************************************************/
-
-/*
- *	NAME
- *		TekHVC_ParseString
- *
- *	SYNOPSIS
- */
-static int
-TekHVC_ParseString(
-    register char *spec,
-    XcmsColor *pColor)
-/*
- *	DESCRIPTION
- *		This routines takes a string and attempts to convert
- *		it into a XcmsColor structure with XcmsTekHVCFormat.
- *		The assumed TekHVC string syntax is:
- *		    TekHVC:<H>/<V>/<C>
- *		Where H, V, and C 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
- *		XcmsFailure if invalid;
- *		XcmsSuccess if valid.
- */
-{
-    int n;
-    char *pchar;
-
-    if ((pchar = strchr(spec, ':')) == NULL) {
-	return(XcmsFailure);
-    }
-    n = (int)(pchar - spec);
-
-    /*
-     * Check for proper prefix.
-     */
-    if (strncmp(spec, _XcmsTekHVC_prefix, n) != 0) {
-	return(XcmsFailure);
-    }
-
-    /*
-     * Attempt to parse the value portion.
-     */
-    if (sscanf(spec + n + 1, "%lf/%lf/%lf",
-	    &pColor->spec.TekHVC.H,
-	    &pColor->spec.TekHVC.V,
-	    &pColor->spec.TekHVC.C) != 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.TekHVC.H,
-		       &pColor->spec.TekHVC.V,
-		       &pColor->spec.TekHVC.C) != 3) {
-                free(s);
-                return(XcmsFailure);
-            }
-            free(s);
-        } else
-	    return(XcmsFailure);
-    }
-    pColor->format = XcmsTekHVCFormat;
-    pColor->pixel = 0;
-    return(XcmsTekHVC_ValidSpec(pColor));
-}
-
-
-/*
- *	NAME
- *		ThetaOffset -- compute thetaOffset
- *
- *	SYNOPSIS
- */
-static int
-ThetaOffset(
-    XcmsColor *pWhitePt,
-    XcmsFloat *pThetaOffset)
-/*
- *	DESCRIPTION
- *		This routine computes the theta offset of a given
- *		white point, i.e. XcmsColor.  It is used in both this
- *		conversion and the printer conversions.
- *
- *	RETURNS
- *		0 if failed.
- *		1 if succeeded with no modifications.
- *
- *	ASSUMPTIONS
- *		Assumes:
- *			pWhitePt != NULL
- *			pWhitePt->format == XcmsCIEuvYFormat
- *
- */
-{
-    double div, slopeuv;
-
-    if (pWhitePt == NULL || pWhitePt->format != XcmsCIEuvYFormat) {
-	return(0);
-    }
-
-    if ((div = u_BR - pWhitePt->spec.CIEuvY.u_prime) == 0.0) {
-	return(0);
-    }
-    slopeuv = (v_BR - pWhitePt->spec.CIEuvY.v_prime) / div;
-    *pThetaOffset = degrees(XCMS_ATAN(slopeuv));
-    return(1);
-}
-
-
-
-/************************************************************************
- *									*
- *			 PUBLIC ROUTINES				*
- *									*
- ************************************************************************/
-
-/*
- *	NAME
- *		XcmsTekHVC_ValidSpec()
- *
- *	SYNOPSIS
- */
-static int
-XcmsTekHVC_ValidSpec(
-    XcmsColor *pColor)
-/*
- *	DESCRIPTION
- *		Checks if values in the color specification are valid.
- *		Also brings hue into the range 0.0 <= Hue < 360.0
- *
- *	RETURNS
- *		0 if not valid.
- *		1 if valid.
- *
- */
-{
-    if (pColor->format != XcmsTekHVCFormat) {
-	return(XcmsFailure);
-    }
-    if (pColor->spec.TekHVC.V < (0.0 - XMY_DBL_EPSILON)
-	    || pColor->spec.TekHVC.V > (100.0 + XMY_DBL_EPSILON)
-	    || (pColor->spec.TekHVC.C < 0.0 - XMY_DBL_EPSILON)) {
-	return(XcmsFailure);
-    }
-
-    if (pColor->spec.TekHVC.V < 0.0) {
-	    pColor->spec.TekHVC.V = 0.0 + XMY_DBL_EPSILON;
-    } else if (pColor->spec.TekHVC.V > 100.0) {
-	pColor->spec.TekHVC.V = 100.0 - XMY_DBL_EPSILON;
-    }
-
-    if (pColor->spec.TekHVC.C < 0.0) {
-	pColor->spec.TekHVC.C = 0.0 - XMY_DBL_EPSILON;
-    }
-
-    while (pColor->spec.TekHVC.H < 0.0) {
-	pColor->spec.TekHVC.H += 360.0;
-    }
-    while (pColor->spec.TekHVC.H >= 360.0) {
-	pColor->spec.TekHVC.H -= 360.0;
-    }
-    return(XcmsSuccess);
-}
-
-/*
- *	NAME
- *		XcmsTekHVCToCIEuvY - convert TekHVC to CIEuvY
- *
- *	SYNOPSIS
- */
-Status
-XcmsTekHVCToCIEuvY(
-    XcmsCCC ccc,
-    XcmsColor *pHVC_WhitePt,
-    XcmsColor *pColors_in_out,
-    unsigned int nColors)
-/*
- *	DESCRIPTION
- *		Transforms an array of TekHVC color specifications, given
- *		their associated white point, to CIECIEuvY.color
- *		specifications.
- *
- *	RETURNS
- *		XcmsFailure if failed, XcmsSuccess otherwise.
- *
- */
-{
-    XcmsFloat	thetaOffset;
-    XcmsColor	*pColor = pColors_in_out;
-    XcmsColor	whitePt;
-    XcmsCIEuvY	uvY_return;
-    XcmsFloat	tempHue, u, v;
-    XcmsFloat	tmpVal;
-    register int i;
-
-    /*
-     * Check arguments
-     */
-    if (pHVC_WhitePt == NULL || pColors_in_out == NULL) {
-	return(XcmsFailure);
-    }
-
-    /*
-     * Make sure white point is in CIEuvY form
-     */
-    if (pHVC_WhitePt->format != XcmsCIEuvYFormat) {
-	/* Make copy of the white point because we're going to modify it */
-	memcpy((char *)&whitePt, (char *)pHVC_WhitePt, sizeof(XcmsColor));
-	if (!_XcmsDIConvertColors(ccc, &whitePt, (XcmsColor *)NULL, 1,
-		XcmsCIEuvYFormat)) {
-	    return(XcmsFailure);
-	}
-	pHVC_WhitePt = &whitePt;
-    }
-    /* Make sure it is a white point, i.e., Y == 1.0 */
-    if (pHVC_WhitePt->spec.CIEuvY.Y != 1.0) {
-	return(XcmsFailure);
-    }
-
-    /* Get the thetaOffset */
-    if (!ThetaOffset(pHVC_WhitePt, &thetaOffset)) {
-	return(XcmsFailure);
-    }
-
-    /*
-     * Now convert each XcmsColor structure to CIEXYZ form
-     */
-    for (i = 0; i < nColors; i++, pColor++) {
-
-	/* Make sure original format is TekHVC and is valid */
-	if (!XcmsTekHVC_ValidSpec(pColor)) {
-	    return(XcmsFailure);
-	}
-
-	if (pColor->spec.TekHVC.V == 0.0 || pColor->spec.TekHVC.V == 100.0) {
-	    if (pColor->spec.TekHVC.V == 100.0) {
-		uvY_return.Y = 1.0;
-	    } else { /* pColor->spec.TekHVC.V == 0.0 */
-		uvY_return.Y = 0.0;
-	    }
-	    uvY_return.u_prime = pHVC_WhitePt->spec.CIEuvY.u_prime;
-	    uvY_return.v_prime = pHVC_WhitePt->spec.CIEuvY.v_prime;
-	} else {
-
-	    /* Find the hue based on the white point offset */
-	    tempHue = pColor->spec.TekHVC.H + thetaOffset;
-
-	    while (tempHue < 0.0) {
-		tempHue += 360.0;
-	    }
-	    while (tempHue >= 360.0) {
-		tempHue -= 360.0;
-	    }
-
-	    tempHue = radians(tempHue);
-
-	    /* Calculate u'v' for the obtained hue */
-	    u = (XcmsFloat) ((XCMS_COS(tempHue) * pColor->spec.TekHVC.C) /
-		    (pColor->spec.TekHVC.V * (double)CHROMA_SCALE_FACTOR));
-	    v = (XcmsFloat) ((XCMS_SIN(tempHue) * pColor->spec.TekHVC.C) /
-		    (pColor->spec.TekHVC.V * (double)CHROMA_SCALE_FACTOR));
-
-	    /* Based on the white point get the offset from best red */
-	    uvY_return.u_prime = u + pHVC_WhitePt->spec.CIEuvY.u_prime;
-	    uvY_return.v_prime = v + pHVC_WhitePt->spec.CIEuvY.v_prime;
-
-	    /* Calculate the Y value based on the L* = V. */
-	    if (pColor->spec.TekHVC.V < 7.99953624) {
-		uvY_return.Y = pColor->spec.TekHVC.V / 903.29;
-	    } else {
-		tmpVal = (pColor->spec.TekHVC.V + 16.0) / 116.0;
-		uvY_return.Y = tmpVal * tmpVal * tmpVal; /* tmpVal ** 3 */
-	    }
-	}
-
-	/* Copy result to pColor */
-	memcpy((char *)&pColor->spec, (char *)&uvY_return, sizeof(XcmsCIEuvY));
-
-	/* Identify that the format is now CIEuvY */
-	pColor->format = XcmsCIEuvYFormat;
-    }
-    return(XcmsSuccess);
-}
-
-
-/*
- *	NAME
- *		XcmsCIEuvYToTekHVC - convert CIEuvY to TekHVC
- *
- *	SYNOPSIS
- */
-Status
-XcmsCIEuvYToTekHVC(
-    XcmsCCC ccc,
-    XcmsColor *pHVC_WhitePt,
-    XcmsColor *pColors_in_out,
-    unsigned int nColors)
-/*
- *	DESCRIPTION
- *		Transforms an array of CIECIEuvY.color specifications, given
- *		their assiciated white point, to TekHVC specifications.
- *
- *	RETURNS
- *		XcmsFailure if failed, XcmsSuccess otherwise.
- *
- */
-{
-    XcmsFloat	theta, L2, u, v, nThetaLow, nThetaHigh;
-    XcmsFloat	thetaOffset;
-    XcmsColor	*pColor = pColors_in_out;
-    XcmsColor	whitePt;
-    XcmsTekHVC	HVC_return;
-    register int i;
-
-    /*
-     * Check arguments
-     */
-    if (pHVC_WhitePt == NULL || pColors_in_out == NULL) {
-	return(XcmsFailure);
-    }
-
-    /*
-     * Make sure white point is in CIEuvY form
-     */
-    if (pHVC_WhitePt->format != XcmsCIEuvYFormat) {
-	/* Make copy of the white point because we're going to modify it */
-	memcpy((char *)&whitePt, (char *)pHVC_WhitePt, sizeof(XcmsColor));
-	if (!_XcmsDIConvertColors(ccc, &whitePt, (XcmsColor *)NULL, 1,
-		XcmsCIEuvYFormat)) {
-	    return(XcmsFailure);
-	}
-	pHVC_WhitePt = &whitePt;
-    }
-    /* Make sure it is a white point, i.e., Y == 1.0 */
-    if (pHVC_WhitePt->spec.CIEuvY.Y != 1.0) {
-	return(XcmsFailure);
-    }
-    if (!ThetaOffset(pHVC_WhitePt, &thetaOffset)) {
-	return(XcmsFailure);
-    }
-
-    /*
-     * Now convert each XcmsColor structure to CIEXYZ form
-     */
-    for (i = 0; i < nColors; i++, pColor++) {
-	if (!_XcmsCIEuvY_ValidSpec(pColor)) {
-	    return(XcmsFailure);
-	}
-
-	/* Use the white point offset to determine HVC */
-	u = pColor->spec.CIEuvY.u_prime - pHVC_WhitePt->spec.CIEuvY.u_prime;
-	v = pColor->spec.CIEuvY.v_prime - pHVC_WhitePt->spec.CIEuvY.v_prime;
-
-	/* Calculate the offset */
-	if (u == 0.0) {
-	    theta = 0.0;
-	} else {
-	    theta = v / u;
-	    theta = (XcmsFloat) XCMS_ATAN((double)theta);
-	    theta = degrees(theta);
-	}
-
-	nThetaLow = 0.0;
-	nThetaHigh = 360.0;
-	if (u > 0.0 && v > 0.0) {
-	    nThetaLow = 0.0;
-	    nThetaHigh = 90.0;
-	} else if (u < 0.0 && v > 0.0) {
-	    nThetaLow = 90.0;
-	    nThetaHigh = 180.0;
-	} else if (u < 0.0 && v < 0.0) {
-	    nThetaLow = 180.0;
-	    nThetaHigh = 270.0;
-	} else if (u > 0.0 && v < 0.0) {
-	    nThetaLow = 270.0;
-	    nThetaHigh = 360.0;
-	}
-	while (theta < nThetaLow) {
-		theta += 90.0;
-	}
-	while (theta >= nThetaHigh) {
-	    theta -= 90.0;
-	}
-
-	/* calculate the L value from the given Y */
-	L2 = (pColor->spec.CIEuvY.Y < 0.008856)
-	    ?
-	    (pColor->spec.CIEuvY.Y * 903.29)
-	    :
-	    ((XcmsFloat)(XCMS_CUBEROOT(pColor->spec.CIEuvY.Y) * 116.0) - 16.0);
-	HVC_return.C = L2 * CHROMA_SCALE_FACTOR * XCMS_SQRT((double) ((u * u) + (v * v)));
-	if (HVC_return.C < 0.0) {
-	    theta = 0.0;
-	}
-	HVC_return.V = L2;
-	HVC_return.H = theta - thetaOffset;
-
-	/*
-	 * If this is within the error margin let some other routine later
-	 * in the chain worry about the slop in the calculations.
-	 */
-	while (HVC_return.H < -EPS) {
-	    HVC_return.H += 360.0;
-	}
-	while (HVC_return.H >= 360.0 + EPS) {
-	    HVC_return.H -= 360.0;
-	}
-
-	/* Copy result to pColor */
-	memcpy((char *)&pColor->spec, (char *)&HVC_return, sizeof(XcmsTekHVC));
-
-	/* Identify that the format is now CIEuvY */
-	pColor->format = XcmsTekHVCFormat;
-    }
-    return(XcmsSuccess);
-}
-
-
-/*
- *	NAME
- *		_XcmsTekHVC_CheckModify
- *
- *	SYNOPSIS
- */
-int
-_XcmsTekHVC_CheckModify(
-    XcmsColor *pColor)
-/*
- *	DESCRIPTION
- *		Checks if values in the color specification are valid.
- *		If they are not it modifies the values.
- *		Also brings hue into the range 0.0 <= Hue < 360.0
- *
- *	RETURNS
- *		0 if not valid.
- *		1 if valid.
- *
- */
-{
-    int n;
-
-    /* For now only use the TekHVC numbers as inputs */
-    if (pColor->format != XcmsTekHVCFormat) {
-	return(0);
-    }
-
-    if (pColor->spec.TekHVC.V < 0.0) {
-	pColor->spec.TekHVC.V = 0.0 + XMY_DBL_EPSILON;
-    } else if (pColor->spec.TekHVC.V > 100.0) {
-	pColor->spec.TekHVC.V = 100.0 - XMY_DBL_EPSILON;
-    }
-
-    if (pColor->spec.TekHVC.C < 0.0) {
-	pColor->spec.TekHVC.C = 0.0 - XMY_DBL_EPSILON;
-    }
-
-    if (pColor->spec.TekHVC.H < 0.0) {
-	n = -pColor->spec.TekHVC.H / 360.0;
-	pColor->spec.TekHVC.H += (n + 1) * 360.0;
-	if (pColor->spec.TekHVC.H >= 360.0)
-	    pColor->spec.TekHVC.H -= 360.0;
-    } else if (pColor->spec.TekHVC.H >= 360.0) {
-	n = pColor->spec.TekHVC.H / 360.0;
-	pColor->spec.TekHVC.H -= n * 360.0;
-    }
-    return(1);
-}
+

+/*

+ * 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.  TekColor is a

+ * trademark of Tektronix, Inc.  The term "TekHVC" designates a particular

+ * color space that is the subject of U.S. Patent No. 4,985,853 (equivalent

+ * foreign patents pending).  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:

+ *

+ * 1. This copyright, permission, and disclaimer notice is reproduced in

+ *    all copies of this software and any modification thereof and in

+ *    supporting documentation;

+ * 2. Any color-handling application which displays TekHVC color

+ *    cooordinates identifies these as TekHVC color coordinates in any

+ *    interface that displays these coordinates and in any associated

+ *    documentation;

+ * 3. The term "TekHVC" is always used, and is only used, in association

+ *    with the mathematical derivations of the TekHVC Color Space,

+ *    including those provided in this file and any equivalent pathways and

+ *    mathematical derivations, regardless of digital (e.g., floating point

+ *    or integer) representation.

+ *

+ * 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

+ *		TekHVC.c

+ *

+ *	DESCRIPTION

+ *		This file contains routines that support the TekHVC

+ *		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 "Xlibint.h"

+#include "Xcmsint.h"

+#include <X11/Xos.h>

+#include <math.h>

+#include "Cv.h"

+

+#include <stdio.h>

+

+/*

+ *	DEFINES

+ */

+#define u_BR    0.7127          /* u' Best Red */

+#define v_BR    0.4931          /* v' Best Red */

+#define EPS     0.001

+#define CHROMA_SCALE_FACTOR   7.50725

+#ifndef PI

+#  ifdef M_PI

+#    define PI	M_PI

+#  else

+#    define PI       3.14159265358979323846264338327950

+#  endif

+#endif

+#ifndef degrees

+#  define degrees(r) ((XcmsFloat)(r) * 180.0 / PI)

+#endif /* degrees */

+#ifndef radians

+#  define radians(d) ((XcmsFloat)(d) * PI / 180.0)

+#endif /* radians */

+

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

+ * Note: The DBL_EPSILON for ANSI is 1e-5 so my checks need to take

+ *       this into account.  If your DBL_EPSILON is different then

+ *       adjust this define.

+ *

+ *       Also note that EPS is the error factor in the calculations

+ *       This may need to be the same as XMY_DBL_EPSILON in

+ *       some implementations.

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

+#ifdef DBL_EPSILON

+#  define XMY_DBL_EPSILON DBL_EPSILON

+#else

+#  define XMY_DBL_EPSILON 0.00001

+#endif

+

+/*

+ *	FORWARD DECLARATIONS

+ */

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

+static Status XcmsTekHVC_ValidSpec(XcmsColor *pColor);

+

+/*

+ *	LOCAL VARIABLES

+ */

+

+    /*

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

+     */

+static XcmsConversionProc Fl_TekHVC_to_CIEXYZ[] = {

+    XcmsTekHVCToCIEuvY,

+    XcmsCIEuvYToCIEXYZ,

+    NULL

+};

+

+    /*

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

+     */

+static XcmsConversionProc Fl_CIEXYZ_to_TekHVC[] = {

+    XcmsCIEXYZToCIEuvY,

+    XcmsCIEuvYToTekHVC,

+    NULL

+};

+

+/*

+ *	GLOBALS

+ */

+

+    /*

+     * TekHVC Color Space

+     */

+XcmsColorSpace	XcmsTekHVCColorSpace =

+    {

+	_XcmsTekHVC_prefix,	/* prefix */

+	XcmsTekHVCFormat,		/* id */

+	TekHVC_ParseString,	/* parseString */

+	Fl_TekHVC_to_CIEXYZ,	/* to_CIEXYZ */

+	Fl_CIEXYZ_to_TekHVC,	/* from_CIEXYZ */

+	1

+    };

+

+

+

+

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

+ *									*

+ *			 PRIVATE ROUTINES				*

+ *									*

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

+

+/*

+ *	NAME

+ *		TekHVC_ParseString

+ *

+ *	SYNOPSIS

+ */

+static int

+TekHVC_ParseString(

+    register char *spec,

+    XcmsColor *pColor)

+/*

+ *	DESCRIPTION

+ *		This routines takes a string and attempts to convert

+ *		it into a XcmsColor structure with XcmsTekHVCFormat.

+ *		The assumed TekHVC string syntax is:

+ *		    TekHVC:<H>/<V>/<C>

+ *		Where H, V, and C 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

+ *		XcmsFailure if invalid;

+ *		XcmsSuccess if valid.

+ */

+{

+    int n;

+    char *pchar;

+

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

+	return(XcmsFailure);

+    }

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

+

+    /*

+     * Check for proper prefix.

+     */

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

+	return(XcmsFailure);

+    }

+

+    /*

+     * Attempt to parse the value portion.

+     */

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

+	    &pColor->spec.TekHVC.H,

+	    &pColor->spec.TekHVC.V,

+	    &pColor->spec.TekHVC.C) != 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.TekHVC.H,

+		       &pColor->spec.TekHVC.V,

+		       &pColor->spec.TekHVC.C) != 3) {

+                free(s);

+                return(XcmsFailure);

+            }

+            free(s);

+        } else

+	    return(XcmsFailure);

+    }

+    pColor->format = XcmsTekHVCFormat;

+    pColor->pixel = 0;

+    return(XcmsTekHVC_ValidSpec(pColor));

+}

+

+

+/*

+ *	NAME

+ *		ThetaOffset -- compute thetaOffset

+ *

+ *	SYNOPSIS

+ */

+static int

+ThetaOffset(

+    XcmsColor *pWhitePt,

+    XcmsFloat *pThetaOffset)

+/*

+ *	DESCRIPTION

+ *		This routine computes the theta offset of a given

+ *		white point, i.e. XcmsColor.  It is used in both this

+ *		conversion and the printer conversions.

+ *

+ *	RETURNS

+ *		0 if failed.

+ *		1 if succeeded with no modifications.

+ *

+ *	ASSUMPTIONS

+ *		Assumes:

+ *			pWhitePt != NULL

+ *			pWhitePt->format == XcmsCIEuvYFormat

+ *

+ */

+{

+    double div, slopeuv;

+

+    if (pWhitePt == NULL || pWhitePt->format != XcmsCIEuvYFormat) {

+	return(0);

+    }

+

+    if ((div = u_BR - pWhitePt->spec.CIEuvY.u_prime) == 0.0) {

+	return(0);

+    }

+    slopeuv = (v_BR - pWhitePt->spec.CIEuvY.v_prime) / div;

+    *pThetaOffset = degrees(XCMS_ATAN(slopeuv));

+    return(1);

+}

+

+

+

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

+ *									*

+ *			 PUBLIC ROUTINES				*

+ *									*

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

+

+/*

+ *	NAME

+ *		XcmsTekHVC_ValidSpec()

+ *

+ *	SYNOPSIS

+ */

+static int

+XcmsTekHVC_ValidSpec(

+    XcmsColor *pColor)

+/*

+ *	DESCRIPTION

+ *		Checks if values in the color specification are valid.

+ *		Also brings hue into the range 0.0 <= Hue < 360.0

+ *

+ *	RETURNS

+ *		0 if not valid.

+ *		1 if valid.

+ *

+ */

+{

+    if (pColor->format != XcmsTekHVCFormat) {

+	return(XcmsFailure);

+    }

+    if (pColor->spec.TekHVC.V < (0.0 - XMY_DBL_EPSILON)

+	    || pColor->spec.TekHVC.V > (100.0 + XMY_DBL_EPSILON)

+	    || (pColor->spec.TekHVC.C < 0.0 - XMY_DBL_EPSILON)) {

+	return(XcmsFailure);

+    }

+

+    if (pColor->spec.TekHVC.V < 0.0) {

+	    pColor->spec.TekHVC.V = 0.0 + XMY_DBL_EPSILON;

+    } else if (pColor->spec.TekHVC.V > 100.0) {

+	pColor->spec.TekHVC.V = 100.0 - XMY_DBL_EPSILON;

+    }

+

+    if (pColor->spec.TekHVC.C < 0.0) {

+	pColor->spec.TekHVC.C = 0.0 - XMY_DBL_EPSILON;

+    }

+

+    while (pColor->spec.TekHVC.H < 0.0) {

+	pColor->spec.TekHVC.H += 360.0;

+    }

+    while (pColor->spec.TekHVC.H >= 360.0) {

+	pColor->spec.TekHVC.H -= 360.0;

+    }

+    return(XcmsSuccess);

+}

+

+/*

+ *	NAME

+ *		XcmsTekHVCToCIEuvY - convert TekHVC to CIEuvY

+ *

+ *	SYNOPSIS

+ */

+Status

+XcmsTekHVCToCIEuvY(

+    XcmsCCC ccc,

+    XcmsColor *pHVC_WhitePt,

+    XcmsColor *pColors_in_out,

+    unsigned int nColors)

+/*

+ *	DESCRIPTION

+ *		Transforms an array of TekHVC color specifications, given

+ *		their associated white point, to CIECIEuvY.color

+ *		specifications.

+ *

+ *	RETURNS

+ *		XcmsFailure if failed, XcmsSuccess otherwise.

+ *

+ */

+{

+    XcmsFloat	thetaOffset;

+    XcmsColor	*pColor = pColors_in_out;

+    XcmsColor	whitePt;

+    XcmsCIEuvY	uvY_return;

+    XcmsFloat	tempHue, u, v;

+    XcmsFloat	tmpVal;

+    register int i;

+

+    /*

+     * Check arguments

+     */

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

+	return(XcmsFailure);

+    }

+

+    /*

+     * Make sure white point is in CIEuvY form

+     */

+    if (pHVC_WhitePt->format != XcmsCIEuvYFormat) {

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

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

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

+		XcmsCIEuvYFormat)) {

+	    return(XcmsFailure);

+	}

+	pHVC_WhitePt = &whitePt;

+    }

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

+    if (pHVC_WhitePt->spec.CIEuvY.Y != 1.0) {

+	return(XcmsFailure);

+    }

+

+    /* Get the thetaOffset */

+    if (!ThetaOffset(pHVC_WhitePt, &thetaOffset)) {

+	return(XcmsFailure);

+    }

+

+    /*

+     * Now convert each XcmsColor structure to CIEXYZ form

+     */

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

+

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

+	if (!XcmsTekHVC_ValidSpec(pColor)) {

+	    return(XcmsFailure);

+	}

+

+	if (pColor->spec.TekHVC.V == 0.0 || pColor->spec.TekHVC.V == 100.0) {

+	    if (pColor->spec.TekHVC.V == 100.0) {

+		uvY_return.Y = 1.0;

+	    } else { /* pColor->spec.TekHVC.V == 0.0 */

+		uvY_return.Y = 0.0;

+	    }

+	    uvY_return.u_prime = pHVC_WhitePt->spec.CIEuvY.u_prime;

+	    uvY_return.v_prime = pHVC_WhitePt->spec.CIEuvY.v_prime;

+	} else {

+

+	    /* Find the hue based on the white point offset */

+	    tempHue = pColor->spec.TekHVC.H + thetaOffset;

+

+	    while (tempHue < 0.0) {

+		tempHue += 360.0;

+	    }

+	    while (tempHue >= 360.0) {

+		tempHue -= 360.0;

+	    }

+

+	    tempHue = radians(tempHue);

+

+	    /* Calculate u'v' for the obtained hue */

+	    u = (XcmsFloat) ((XCMS_COS(tempHue) * pColor->spec.TekHVC.C) /

+		    (pColor->spec.TekHVC.V * (double)CHROMA_SCALE_FACTOR));

+	    v = (XcmsFloat) ((XCMS_SIN(tempHue) * pColor->spec.TekHVC.C) /

+		    (pColor->spec.TekHVC.V * (double)CHROMA_SCALE_FACTOR));

+

+	    /* Based on the white point get the offset from best red */

+	    uvY_return.u_prime = u + pHVC_WhitePt->spec.CIEuvY.u_prime;

+	    uvY_return.v_prime = v + pHVC_WhitePt->spec.CIEuvY.v_prime;

+

+	    /* Calculate the Y value based on the L* = V. */

+	    if (pColor->spec.TekHVC.V < 7.99953624) {

+		uvY_return.Y = pColor->spec.TekHVC.V / 903.29;

+	    } else {

+		tmpVal = (pColor->spec.TekHVC.V + 16.0) / 116.0;

+		uvY_return.Y = tmpVal * tmpVal * tmpVal; /* tmpVal ** 3 */

+	    }

+	}

+

+	/* Copy result to pColor */

+	memcpy((char *)&pColor->spec, (char *)&uvY_return, sizeof(XcmsCIEuvY));

+

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

+	pColor->format = XcmsCIEuvYFormat;

+    }

+    return(XcmsSuccess);

+}

+

+

+/*

+ *	NAME

+ *		XcmsCIEuvYToTekHVC - convert CIEuvY to TekHVC

+ *

+ *	SYNOPSIS

+ */

+Status

+XcmsCIEuvYToTekHVC(

+    XcmsCCC ccc,

+    XcmsColor *pHVC_WhitePt,

+    XcmsColor *pColors_in_out,

+    unsigned int nColors)

+/*

+ *	DESCRIPTION

+ *		Transforms an array of CIECIEuvY.color specifications, given

+ *		their assiciated white point, to TekHVC specifications.

+ *

+ *	RETURNS

+ *		XcmsFailure if failed, XcmsSuccess otherwise.

+ *

+ */

+{

+    XcmsFloat	theta, L2, u, v, nThetaLow, nThetaHigh;

+    XcmsFloat	thetaOffset;

+    XcmsColor	*pColor = pColors_in_out;

+    XcmsColor	whitePt;

+    XcmsTekHVC	HVC_return;

+    register int i;

+

+    /*

+     * Check arguments

+     */

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

+	return(XcmsFailure);

+    }

+

+    /*

+     * Make sure white point is in CIEuvY form

+     */

+    if (pHVC_WhitePt->format != XcmsCIEuvYFormat) {

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

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

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

+		XcmsCIEuvYFormat)) {

+	    return(XcmsFailure);

+	}

+	pHVC_WhitePt = &whitePt;

+    }

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

+    if (pHVC_WhitePt->spec.CIEuvY.Y != 1.0) {

+	return(XcmsFailure);

+    }

+    if (!ThetaOffset(pHVC_WhitePt, &thetaOffset)) {

+	return(XcmsFailure);

+    }

+

+    /*

+     * Now convert each XcmsColor structure to CIEXYZ form

+     */

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

+	if (!_XcmsCIEuvY_ValidSpec(pColor)) {

+	    return(XcmsFailure);

+	}

+

+	/* Use the white point offset to determine HVC */

+	u = pColor->spec.CIEuvY.u_prime - pHVC_WhitePt->spec.CIEuvY.u_prime;

+	v = pColor->spec.CIEuvY.v_prime - pHVC_WhitePt->spec.CIEuvY.v_prime;

+

+	/* Calculate the offset */

+	if (u == 0.0) {

+	    theta = 0.0;

+	} else {

+	    theta = v / u;

+	    theta = (XcmsFloat) XCMS_ATAN((double)theta);

+	    theta = degrees(theta);

+	}

+

+	nThetaLow = 0.0;

+	nThetaHigh = 360.0;

+	if (u > 0.0 && v > 0.0) {

+	    nThetaLow = 0.0;

+	    nThetaHigh = 90.0;

+	} else if (u < 0.0 && v > 0.0) {

+	    nThetaLow = 90.0;

+	    nThetaHigh = 180.0;

+	} else if (u < 0.0 && v < 0.0) {

+	    nThetaLow = 180.0;

+	    nThetaHigh = 270.0;

+	} else if (u > 0.0 && v < 0.0) {

+	    nThetaLow = 270.0;

+	    nThetaHigh = 360.0;

+	}

+	while (theta < nThetaLow) {

+		theta += 90.0;

+	}

+	while (theta >= nThetaHigh) {

+	    theta -= 90.0;

+	}

+

+	/* calculate the L value from the given Y */

+	L2 = (pColor->spec.CIEuvY.Y < 0.008856)

+	    ?

+	    (pColor->spec.CIEuvY.Y * 903.29)

+	    :

+	    ((XcmsFloat)(XCMS_CUBEROOT(pColor->spec.CIEuvY.Y) * 116.0) - 16.0);

+	HVC_return.C = L2 * CHROMA_SCALE_FACTOR * XCMS_SQRT((double) ((u * u) + (v * v)));

+	if (HVC_return.C < 0.0) {

+	    theta = 0.0;

+	}

+	HVC_return.V = L2;

+	HVC_return.H = theta - thetaOffset;

+

+	/*

+	 * If this is within the error margin let some other routine later

+	 * in the chain worry about the slop in the calculations.

+	 */

+	while (HVC_return.H < -EPS) {

+	    HVC_return.H += 360.0;

+	}

+	while (HVC_return.H >= 360.0 + EPS) {

+	    HVC_return.H -= 360.0;

+	}

+

+	/* Copy result to pColor */

+	memcpy((char *)&pColor->spec, (char *)&HVC_return, sizeof(XcmsTekHVC));

+

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

+	pColor->format = XcmsTekHVCFormat;

+    }

+    return(XcmsSuccess);

+}

+

+

+/*

+ *	NAME

+ *		_XcmsTekHVC_CheckModify

+ *

+ *	SYNOPSIS

+ */

+int

+_XcmsTekHVC_CheckModify(

+    XcmsColor *pColor)

+/*

+ *	DESCRIPTION

+ *		Checks if values in the color specification are valid.

+ *		If they are not it modifies the values.

+ *		Also brings hue into the range 0.0 <= Hue < 360.0

+ *

+ *	RETURNS

+ *		0 if not valid.

+ *		1 if valid.

+ *

+ */

+{

+    int n;

+

+    /* For now only use the TekHVC numbers as inputs */

+    if (pColor->format != XcmsTekHVCFormat) {

+	return(0);

+    }

+

+    if (pColor->spec.TekHVC.V < 0.0) {

+	pColor->spec.TekHVC.V = 0.0 + XMY_DBL_EPSILON;

+    } else if (pColor->spec.TekHVC.V > 100.0) {

+	pColor->spec.TekHVC.V = 100.0 - XMY_DBL_EPSILON;

+    }

+

+    if (pColor->spec.TekHVC.C < 0.0) {

+	pColor->spec.TekHVC.C = 0.0 - XMY_DBL_EPSILON;

+    }

+

+    if (pColor->spec.TekHVC.H < 0.0) {

+	n = -pColor->spec.TekHVC.H / 360.0;

+	pColor->spec.TekHVC.H += (n + 1) * 360.0;

+	if (pColor->spec.TekHVC.H >= 360.0)

+	    pColor->spec.TekHVC.H -= 360.0;

+    } else if (pColor->spec.TekHVC.H >= 360.0) {

+	n = pColor->spec.TekHVC.H / 360.0;

+	pColor->spec.TekHVC.H -= n * 360.0;

+    }

+    return(1);

+}