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115 lines
4.0 KiB
C
115 lines
4.0 KiB
C
/* $Xorg: HVCWpAj.c,v 1.3 2000/08/17 19:44:37 cpqbld Exp $ */
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/*
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* Code and supporting documentation (c) Copyright 1990 1991 Tektronix, Inc.
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* All Rights Reserved
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*
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* This file is a component of an X Window System-specific implementation
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* of Xcms based on the TekColor Color Management System. TekColor is a
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* trademark of Tektronix, Inc. The term "TekHVC" designates a particular
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* color space that is the subject of U.S. Patent No. 4,985,853 (equivalent
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* foreign patents pending). Permission is hereby granted to use, copy,
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* modify, sell, and otherwise distribute this software and its
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* documentation for any purpose and without fee, provided that:
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*
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* 1. This copyright, permission, and disclaimer notice is reproduced in
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* all copies of this software and any modification thereof and in
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* supporting documentation;
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* 2. Any color-handling application which displays TekHVC color
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* cooordinates identifies these as TekHVC color coordinates in any
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* interface that displays these coordinates and in any associated
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* documentation;
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* 3. The term "TekHVC" is always used, and is only used, in association
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* with the mathematical derivations of the TekHVC Color Space,
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* including those provided in this file and any equivalent pathways and
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* mathematical derivations, regardless of digital (e.g., floating point
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* or integer) representation.
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*
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* Tektronix makes no representation about the suitability of this software
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* for any purpose. It is provided "as is" and with all faults.
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*
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* TEKTRONIX DISCLAIMS ALL WARRANTIES APPLICABLE TO THIS SOFTWARE,
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* INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE. IN NO EVENT SHALL TEKTRONIX BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER IN AN ACTION OF
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* CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR THE PERFORMANCE OF THIS SOFTWARE.
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*
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* DESCRIPTION
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* TekHVCWpAj.c
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*
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* DESCRIPTION
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* This file contains routine(s) that support white point
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* adjustment of color specifications in the TekHVC color
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* space.
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*/
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/* $XFree86: xc/lib/X11/HVCWpAj.c,v 1.2 2003/04/13 19:22:16 dawes Exp $ */
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#include "Xlibint.h"
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#include "Xcmsint.h"
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#include "Cv.h"
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/************************************************************************
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* *
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* PUBLIC ROUTINES *
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* *
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************************************************************************/
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/*
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* NAME
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* XcmsTekHVCWhiteShiftColors
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*
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* SYNOPSIS
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*/
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Status
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XcmsTekHVCWhiteShiftColors(ccc, pWhitePtFrom, pWhitePtTo, destSpecFmt,
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pColors_in_out, nColors, pCompressed)
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XcmsCCC ccc;
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XcmsColor *pWhitePtFrom;
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XcmsColor *pWhitePtTo;
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XcmsColorFormat destSpecFmt;
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XcmsColor *pColors_in_out;
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unsigned int nColors;
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Bool *pCompressed;
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/*
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* DESCRIPTION
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* Convert color specifications in an array of XcmsColor structures
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* for differences in white points.
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*
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* RETURNS
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* XcmsFailure if failed,
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* XcmsSuccess if succeeded without gamut compression,
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* XcmsSuccessWithCompression if succeeded with
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* gamut compression.
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*/
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{
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if (pWhitePtFrom == NULL || pWhitePtTo == NULL || pColors_in_out == NULL) {
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return(XcmsFailure);
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}
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/*
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* Insure TekHVC installed
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*/
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if (XcmsAddColorSpace(&XcmsTekHVCColorSpace) == XcmsFailure) {
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return(XcmsFailure);
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}
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/*
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* Convert to TekHVC using pWhitePtFrom
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* We can ignore return value for compression because we are converting
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* to XcmsTekHVCFormat which is device-independent, not device-dependent.
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*/
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if (_XcmsConvertColorsWithWhitePt(ccc, pColors_in_out, pWhitePtFrom,
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nColors, XcmsTekHVCFormat, pCompressed) == XcmsFailure) {
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return(XcmsFailure);
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}
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/*
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* Convert from TekHVC to destSpecFmt using pWhitePtTo
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*/
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return(_XcmsConvertColorsWithWhitePt(ccc, pColors_in_out, pWhitePtTo,
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nColors, destSpecFmt, pCompressed));
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}
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