IABSD.fr/xenocara/lib/libX11/src/xcms/LuvWpAj.c

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• Author : matthieu
  Date : 2010-05-18 19:37:28
  Hash : aa3c9f93
  Message : Update to libX11 1.3.3. Tested on a bulk ports build by naddy@.

• lib/libX11/src/xcms/LuvWpAj.c

• /*
   * 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
   *		CIELuvWpAj.c
   *
   *	DESCRIPTION
   *		This file contains routine(s) that support white point
   *		adjustment of color specifications in the CIE CIELuv.color
   *		space.
   */
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include "Xlibint.h"
  #include "Xcmsint.h"
  #include "Cv.h"
  
  
  
  /************************************************************************
   *									*
   *			 PUBLIC ROUTINES				*
   *									*
   ************************************************************************/
  
  /*
   *	NAME
   *		XcmsCIELuvWhiteShiftColors
   *
   *	SYNOPSIS
   */
  Status
  XcmsCIELuvWhiteShiftColors(
      XcmsCCC ccc,
      XcmsColor *pWhitePtFrom,
      XcmsColor *pWhitePtTo,
      XcmsColorFormat destSpecFmt,
      XcmsColor *pColors_in_out,
      unsigned int nColors,
      Bool *pCompressed)
  /*
   *	DESCRIPTION
   *		Adjusts color specifications in an array of XcmsColor
   *		structures for white point differences.
   *
   *	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);
      }
  
      /*
       * Convert to CIELuv using pWhitePtFrom
       *    We can ignore return value for compression because we are converting
       *    to XcmsCIELuvFormat which is device-independent, not device-dependent.
       */
      if (_XcmsConvertColorsWithWhitePt(ccc, pColors_in_out, pWhitePtFrom,
  	    nColors, XcmsCIELuvFormat, pCompressed) == XcmsFailure) {
  	return(XcmsFailure);
      }
  
      /*
       * Convert from CIELuv to destSpecFmt using pWhitePtTo
       */
      return(_XcmsConvertColorsWithWhitePt(ccc, pColors_in_out, pWhitePtTo,
  	    nColors, destSpecFmt, pCompressed));
  }