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Diffstat (limited to 'libX11/src/xcms/HVCWpAj.c')
-rw-r--r-- | libX11/src/xcms/HVCWpAj.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/libX11/src/xcms/HVCWpAj.c b/libX11/src/xcms/HVCWpAj.c new file mode 100644 index 000000000..f9e2c38d1 --- /dev/null +++ b/libX11/src/xcms/HVCWpAj.c @@ -0,0 +1,116 @@ +/* $Xorg: HVCWpAj.c,v 1.3 2000/08/17 19:44:37 cpqbld 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. + */ +/* $XFree86$ */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#include "Xcmsint.h" +#include "Cv.h" + + +/************************************************************************ + * * + * PUBLIC ROUTINES * + * * + ************************************************************************/ + +/* + * NAME + * XcmsTekHVCWhiteShiftColors + * + * SYNOPSIS + */ +Status +XcmsTekHVCWhiteShiftColors( + 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)); +} |