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diff --git a/nx-X11/lib/X11/HVCMxVC.c b/nx-X11/lib/X11/HVCMxVC.c
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-
-/*
- * 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
- * TekHVCMxVC.c
- *
- * DESCRIPTION
- * Source for the XcmsTekHVCQueryMaxVC() gamut boundary
- * querying routine.
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "Xlibint.h"
-#include "Xcmsint.h"
-#include "Cv.h"
-
-/*
- * DEFINES
- */
-#define MIN(x,y) ((x) > (y) ? (y) : (x))
-#define MIN3(x,y,z) ((x) > (MIN((y), (z))) ? (MIN((y), (z))) : (x))
-#define MAX(x,y) ((x) > (y) ? (x) : (y))
-#define MAX3(x,y,z) ((x) > (MAX((y), (z))) ? (x) : (MAX((y), (z))))
-#define START_V 40.0
-#define START_C 120.0
-
-
-/************************************************************************
- * *
- * API PRIVATE ROUTINES *
- * *
- ************************************************************************/
-
-/*
- * NAME
- * _XcmsTekHVCQueryMaxVCRGB - Compute maximum value/chroma.
- *
- * SYNOPSIS
- */
-Status
-_XcmsTekHVCQueryMaxVCRGB(
- XcmsCCC ccc,
- XcmsFloat hue,
- XcmsColor *pColor_return,
- XcmsRGBi *pRGB_return)
-
-/*
- * DESCRIPTION
- * Return the maximum chroma for a specified hue, and the
- * corresponding value. This is computed by a binary search of
- * all possible chromas. An assumption is made that there are
- * no local maxima. Use the unrounded Max Chroma because
- * the difference check can be small.
- *
- * NOTE: No local CCC is used because this is a private
- * routine and all routines that call it are expected
- * to behave properly, i.e. send a local CCC with
- * no white adjust function and no gamut compression
- * function.
- *
- * This routine only accepts hue as input and outputs
- * HVC's and RGBi's.
- *
- * RETURNS
- * XcmsFailure - Failure
- * XCMS_SUCCUSS - Succeeded
- *
- */
-{
- XcmsFloat nSmall, nLarge;
- XcmsColor tmp;
-
- tmp.format = XcmsTekHVCFormat;
- tmp.spec.TekHVC.H = hue;
- /* Use some unreachable color on the given hue */
- tmp.spec.TekHVC.V = START_V;
- tmp.spec.TekHVC.C = START_C;
-
-
- /*
- * Convert from HVC to RGB
- *
- * Note that the CIEXYZ to RGBi conversion routine must stuff the
- * out of bounds RGBi values in tmp when the ccc->gamutCompProc
- * is NULL.
- */
- if ((_XcmsConvertColorsWithWhitePt(ccc, &tmp,
- &ccc->pPerScrnInfo->screenWhitePt, 1, XcmsRGBiFormat, (Bool *) NULL)
- == XcmsFailure) && tmp.format != XcmsRGBiFormat) {
- return (XcmsFailure);
- }
-
- /* Now pick the smallest RGB */
- nSmall = MIN3(tmp.spec.RGBi.red,
- tmp.spec.RGBi.green,
- tmp.spec.RGBi.blue);
- /* Make the smallest RGB equal to zero */
- tmp.spec.RGBi.red -= nSmall;
- tmp.spec.RGBi.green -= nSmall;
- tmp.spec.RGBi.blue -= nSmall;
-
- /* Now pick the largest RGB */
- nLarge = MAX3(tmp.spec.RGBi.red,
- tmp.spec.RGBi.green,
- tmp.spec.RGBi.blue);
- /* Scale the RGB values based on the largest one */
- tmp.spec.RGBi.red /= nLarge;
- tmp.spec.RGBi.green /= nLarge;
- tmp.spec.RGBi.blue /= nLarge;
- tmp.format = XcmsRGBiFormat;
-
- /* If the calling routine wants RGB value give them the ones used. */
- if (pRGB_return) {
- pRGB_return->red = tmp.spec.RGBi.red;
- pRGB_return->green = tmp.spec.RGBi.green;
- pRGB_return->blue = tmp.spec.RGBi.blue;
- }
-
- /* Convert from RGBi to HVC */
- if (_XcmsConvertColorsWithWhitePt(ccc, &tmp,
- &ccc->pPerScrnInfo->screenWhitePt, 1, XcmsTekHVCFormat, (Bool *) NULL)
- == XcmsFailure) {
- return (XcmsFailure);
- }
-
- /* make sure to return the input hue */
- tmp.spec.TekHVC.H = hue;
- memcpy((char *)pColor_return, (char *)&tmp, sizeof(XcmsColor));
- return (XcmsSuccess);
-}
-
-
-/************************************************************************
- * *
- * PUBLIC ROUTINES *
- * *
- ************************************************************************/
-
-/*
- * NAME
- * XcmsTekHVCQueryMaxVC - Compute maximum value and chroma.
- *
- * SYNOPSIS
- */
-Status
-XcmsTekHVCQueryMaxVC (
- XcmsCCC ccc,
- XcmsFloat hue,
- XcmsColor *pColor_return)
-
-/*
- * DESCRIPTION
- * Return the maximum chroma for the specified hue, and the
- * corresponding value.
- *
- * ASSUMPTIONS
- * This routine assumes that the white point associated with
- * the color specification is the Screen White Point. The
- * Screen White Point will also be associated with the
- * returned color specification.
- *
- * RETURNS
- * XcmsFailure - Failure
- * XcmsSuccess - Succeeded
- *
- */
-{
- XcmsCCCRec myCCC;
-
- /*
- * Check Arguments
- */
- if (ccc == NULL || pColor_return == NULL) {
- return(XcmsFailure);
- }
-
- /*
- * Insure TekHVC installed
- */
- if (XcmsAddColorSpace(&XcmsTekHVCColorSpace) == XcmsFailure) {
- return(XcmsFailure);
- }
-
- /* Use my own CCC */
- memcpy ((char *)&myCCC, (char *)ccc, sizeof(XcmsCCCRec));
- myCCC.clientWhitePt.format = XcmsUndefinedFormat;
- myCCC.gamutCompProc = (XcmsCompressionProc)NULL;
-
- while (hue < 0.0) {
- hue += 360.0;
- }
- while (hue >= 360.0) {
- hue -= 360.0;
- }
-
- return(_XcmsTekHVCQueryMaxVCRGB (&myCCC, hue, pColor_return,
- (XcmsRGBi *)NULL));
-}
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