BSD 4_4_Lite2 development

Work on file usr/src/contrib/X11R5-lib/lib/X/TekHVCWpAj.c

Synthesized-from: CSRG/cd3/4.4BSD-Lite2

diff --git a/usr/src/contrib/X11R5-lib/lib/X/TekHVCWpAj.c b/usr/src/contrib/X11R5-lib/lib/X/TekHVCWpAj.c
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+/* $XConsortium: TekHVCWpAj.c,v 1.4 91/05/13 22:48:45 rws Exp $" */
+
+/*
+ * 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.
+ *
+ *     DESCRIPTION
+ *             TekHVCWpAj.c
+ *
+ *     DESCRIPTION
+ *             This file contains routine(s) that support white point
+ *             adjustment of color specifications in the TekHVC color
+ *             space.
+ */
+
+#include "Xlibint.h"
+#include "Xcmsint.h"
+
+/*
+ *     EXTERNS
+ */
+extern Status _XcmsConvertColorsWithWhitePt();
+extern XcmsColorSpace XcmsTekHVCColorSpace;
+
+\f
+/************************************************************************
+ *                                                                     *
+ *                      PUBLIC ROUTINES                                *
+ *                                                                     *
+ ************************************************************************/
+
+/*
+ *     NAME
+ *             XcmsTekHVCWhiteShiftColors
+ *
+ *     SYNOPSIS
+ */
+Status
+XcmsTekHVCWhiteShiftColors(ccc, pWhitePtFrom, pWhitePtTo, destSpecFmt,
+       pColors_in_out, nColors, pCompressed)
+    XcmsCCC ccc;
+    XcmsColor *pWhitePtFrom;
+    XcmsColor *pWhitePtTo;
+    XcmsColorFormat destSpecFmt;
+    XcmsColor *pColors_in_out;
+    unsigned int nColors;
+    Bool *pCompressed;
+/*
+ *     DESCRIPTION
+ *             Convert color specifications in an array of XcmsColor structures
+ *             for differences in white points.
+ *
+ *     RETURNS
+ *             XcmsFailure if failed,
+ *             XcmsSuccess if succeeded without gamut compression,
+ *             XcmsSuccessWithCompression if succeeded with
+ *                     gamut compression.
+ */
+{
+    if (pWhitePtFrom == NULL || pWhitePtTo == NULL || pColors_in_out == NULL) {
+       return(XcmsFailure);
+    }
+
+    /*
+     * Insure TekHVC installed
+     */
+    if (XcmsAddColorSpace(&XcmsTekHVCColorSpace) == XcmsFailure) {
+       return(XcmsFailure);
+    }
+
+    /*
+     * Convert to TekHVC using pWhitePtFrom
+     *    We can ignore return value for compression because we are converting
+     *    to XcmsTekHVCFormat which is device-independent, not device-dependent.
+     */
+    if (_XcmsConvertColorsWithWhitePt(ccc, pColors_in_out, pWhitePtFrom,
+           nColors, XcmsTekHVCFormat, pCompressed) == XcmsFailure) {
+       return(XcmsFailure);
+    }
+
+    /*
+     * Convert from TekHVC to destSpecFmt using pWhitePtTo
+     */
+    return(_XcmsConvertColorsWithWhitePt(ccc, pColors_in_out, pWhitePtTo,
+           nColors, destSpecFmt, pCompressed));
+}