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Diffstat (limited to 'nx-X11/lib/X11/HVCMxVs.c')
| -rw-r--r-- | nx-X11/lib/X11/HVCMxVs.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/nx-X11/lib/X11/HVCMxVs.c b/nx-X11/lib/X11/HVCMxVs.c deleted file mode 100644 index 540e5c2f4..000000000 --- a/nx-X11/lib/X11/HVCMxVs.c +++ /dev/null @@ -1,161 +0,0 @@ - -/* - * 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 - * TekHVCMxVs.c - * - * DESCRIPTION - * Source for the XcmsTekHVCQueryMaxVSamples() gamut boundary - * querying routine. - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include "Xlibint.h" -#include "Xcmsint.h" -#include "Cv.h" - - -/************************************************************************ - * * - * PUBLIC ROUTINES * - * * - ************************************************************************/ - -/* - * NAME - * XcmsTekHVCQueryMaxVSamples - Compute a set of value/chroma - * pairs. - * - * SYNOPSIS - */ -Status -XcmsTekHVCQueryMaxVSamples( - XcmsCCC ccc, - XcmsFloat hue, - XcmsColor *pColor_in_out, - unsigned int nSamples) - -/* - * DESCRIPTION - * Return a set of values and chromas for the input Hue. - * This routine will take any color as input. - * It returns TekHVC colors. - * - * Since this routine works with the value within - * pColor_in_out intermediate results may be returned - * even though it may be invalid. - * - * 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; - XcmsColor *pHVC; - XcmsRGBi rgb_saved; - unsigned short nI; - XcmsFloat nT; - - /* - * Check Arguments - */ - if (ccc == NULL || pColor_in_out == NULL || nSamples == 0) { - return(XcmsFailure); - } - - /* - * Insure TekHVC installed - */ - if (XcmsAddColorSpace(&XcmsTekHVCColorSpace) == XcmsFailure) { - return(XcmsFailure); - } - - /* setup the CCC to use for the conversions. */ - memcpy ((char *) &myCCC, (char *) ccc, sizeof(XcmsCCCRec)); - myCCC.clientWhitePt.format = XcmsUndefinedFormat; - myCCC.gamutCompProc = (XcmsCompressionProc) NULL; - - /* Step 1: compute the maximum value and chroma for this hue. */ - - - /* save the Hue for use later. */ - while (hue < 0.0) { - hue += 360.0; - } - while (hue > 360.0) { - hue -= 360.0; - } - pColor_in_out->spec.TekHVC.H = hue; - pColor_in_out->format = XcmsTekHVCFormat; - - /* Get the maximum value and chroma point for this hue */ - if (_XcmsTekHVCQueryMaxVCRGB(&myCCC, pColor_in_out->spec.TekHVC.H, - pColor_in_out, (XcmsRGBi *)&rgb_saved) == XcmsFailure) { - return (XcmsFailure); - } - - /* Step 2: Convert each of the RGBi's to HVC's */ - pHVC = pColor_in_out; - for (nI = 0; nI < nSamples; nI++, pHVC++) { - nT = (XcmsFloat) nI / (XcmsFloat) nSamples; - pHVC->spec.RGBi.red = rgb_saved.red * (1.0 - nT) + nT; - pHVC->spec.RGBi.green = rgb_saved.green * (1.0 - nT) + nT; - pHVC->spec.RGBi.blue = rgb_saved.blue * (1.0 - nT) + nT; - pHVC->format = XcmsRGBiFormat; - pHVC->pixel = pColor_in_out->pixel; - /* convert from RGB to HVC */ - if (_XcmsConvertColorsWithWhitePt(&myCCC, pHVC, - &myCCC.pPerScrnInfo->screenWhitePt, 1, XcmsTekHVCFormat, - (Bool *) NULL) == XcmsFailure) { - return(XcmsFailure); - } - - /* make sure to return the input hue */ - pHVC->spec.TekHVC.H = hue; - } - - return(XcmsSuccess); -} |