From 3744281b9ae8aa0ab86ceaee1afe8a603e3aeb2c Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 19 Nov 2012 10:16:38 +0100 Subject: dos -> unix --- libX11/src/xcms/LabGcLC.c | 446 +++++++++++++++++++++++----------------------- 1 file changed, 223 insertions(+), 223 deletions(-) (limited to 'libX11/src/xcms/LabGcLC.c') diff --git a/libX11/src/xcms/LabGcLC.c b/libX11/src/xcms/LabGcLC.c index cedaf1229..494d34e57 100644 --- a/libX11/src/xcms/LabGcLC.c +++ b/libX11/src/xcms/LabGcLC.c @@ -1,223 +1,223 @@ - -/* - * 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 - * CIELabGcLC.c - * - * DESCRIPTION - * Source for XcmsCIELabClipLab() gamut - * compression function. - */ - -#ifdef HAVE_CONFIG_H -#include -#endif -#include "Xlibint.h" -#include "Xcmsint.h" -#include -#include "Cv.h" - -/* - * INTERNALS - * Internal defines that need NOT be exported to any package or - * program using this package. - */ -#define MAXBISECTCOUNT 100 - - -/************************************************************************ - * * - * PUBLIC ROUTINES * - * * - ************************************************************************/ - -/* - * NAME - * XcmsCIELabClipLab - Return the closest L* and chroma - * - * SYNOPSIS - */ -/* ARGSUSED */ -Status -XcmsCIELabClipLab ( - XcmsCCC ccc, - XcmsColor *pColors_in_out, - unsigned int nColors, - unsigned int i, - Bool *pCompressed) -/* - * DESCRIPTION - * This routine will find the closest L* and chroma - * for a specific hue. The color input is converted to - * CIE L*u*v* format and returned as CIE XYZ format. - * - * Since this routine works with the L* within - * pColor_in_out intermediate results may be returned - * even though it may be invalid. - * - * RETURNS - * XcmsFailure - Failure - * XcmsSuccess - Succeeded - * - */ -{ - Status retval; - XcmsCCCRec myCCC; - XcmsColor *pColor; - XcmsColor Lab_max; - XcmsFloat hue, chroma, maxChroma; - XcmsFloat Chroma, bestChroma, Lstar, maxLstar, saveLstar; - XcmsFloat bestLstar, bestastar, bestbstar; - XcmsFloat nT, saveDist, tmpDist; - XcmsRGBi rgb_max; - int nCount, nMaxCount, nI, nILast; - - /* Use my own CCC */ - memcpy ((char *)&myCCC, (char *)ccc, sizeof(XcmsCCCRec)); - myCCC.clientWhitePt.format = XcmsUndefinedFormat;/* inherit screen white */ - myCCC.gamutCompProc = (XcmsCompressionProc)NULL;/* no gamut compression func */ - - /* - * Color specification passed as input can be assumed to: - * 1. Be in XcmsCIEXYZFormat - * 2. Already be white point adjusted for the Screen White Point. - * This means that the white point now associated with this - * color spec is the Screen White Point (even if the - * ccc->clientWhitePt differs). - */ - - pColor = pColors_in_out + i; - - if (ccc->visual->class < StaticColor) { - /* - * GRAY ! - */ - _XcmsDIConvertColors(ccc, pColor, ScreenWhitePointOfCCC(ccc), - 1, XcmsCIELabFormat); - _XcmsDIConvertColors(ccc, pColor, ScreenWhitePointOfCCC(ccc), - 1, XcmsCIEXYZFormat); - if (pCompressed) { - *(pCompressed + i) = True; - } - return(XcmsSuccess); - } - - /* Convert from CIEXYZ to CIELab format */ - if (_XcmsDIConvertColors(&myCCC, pColor, - ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIELabFormat) - == XcmsFailure) { - return(XcmsFailure); - } - - /* Step 1: compute the maximum L* and chroma for this hue. */ - /* This copy may be overkill but it preserves the pixel etc. */ - saveLstar = pColor->spec.CIELab.L_star; - hue = XCMS_CIELAB_PMETRIC_HUE(pColor->spec.CIELab.a_star, - pColor->spec.CIELab.b_star); - chroma = XCMS_CIELAB_PMETRIC_CHROMA(pColor->spec.CIELab.a_star, - pColor->spec.CIELab.b_star); - memcpy((char *)&Lab_max, (char *)pColor, sizeof(XcmsColor)); - if (_XcmsCIELabQueryMaxLCRGB (&myCCC, hue, &Lab_max, &rgb_max) - == XcmsFailure) { - return (XcmsFailure); - } - maxLstar = Lab_max.spec.CIELab.L_star; - - /* Now check and return the appropriate L* */ - if (saveLstar == maxLstar) { - /* When the L* input is equal to the maximum L* */ - /* merely return the maximum Lab point. */ - memcpy((char *)pColor, (char *)&Lab_max, sizeof(XcmsColor)); - retval = _XcmsDIConvertColors(&myCCC, pColor, - ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIEXYZFormat); - } else { - /* return the closest point on the hue leaf. */ - /* must do a bisection here to compute the delta e. */ - maxChroma = XCMS_CIELAB_PMETRIC_CHROMA(Lab_max.spec.CIELab.a_star, - Lab_max.spec.CIELab.b_star); - nMaxCount = MAXBISECTCOUNT; - nI = nMaxCount / 2; - bestLstar = Lstar = pColor->spec.CIELab.L_star; - bestastar = pColor->spec.CIELab.a_star; - bestbstar = pColor->spec.CIELab.b_star; - bestChroma = Chroma = chroma; - saveDist = XCMS_SQRT(((Chroma - maxChroma) * (Chroma - maxChroma)) + - ((Lstar - maxLstar) * (Lstar - maxLstar))); - for (nCount = 0; nCount < nMaxCount; nCount++) { - nT = (XcmsFloat) nI / (XcmsFloat) nMaxCount; - if (saveLstar > maxLstar) { - pColor->spec.RGBi.red = rgb_max.red * (1.0 - nT) + nT; - pColor->spec.RGBi.green = rgb_max.green * (1.0 - nT) + nT; - pColor->spec.RGBi.blue = rgb_max.blue * (1.0 - nT) + nT; - } else { - pColor->spec.RGBi.red = rgb_max.red - (rgb_max.red * nT); - pColor->spec.RGBi.green = rgb_max.green - (rgb_max.green * nT); - pColor->spec.RGBi.blue = rgb_max.blue - (rgb_max.blue * nT); - } - pColor->format = XcmsRGBiFormat; - - /* Convert from RGBi to CIE Lab */ - if (_XcmsConvertColorsWithWhitePt(&myCCC, pColor, - ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIELabFormat, - (Bool *) NULL) == XcmsFailure) { - return (XcmsFailure); - } - chroma = XCMS_CIELAB_PMETRIC_CHROMA(pColor->spec.CIELab.a_star, - pColor->spec.CIELab.b_star); - tmpDist = XCMS_SQRT(((Chroma - chroma) * (Chroma - chroma)) + - ((Lstar - pColor->spec.CIELab.L_star) * - (Lstar - pColor->spec.CIELab.L_star))); - nILast = nI; - if (tmpDist > saveDist) { - nI /= 2; - } else { - nI = (nMaxCount + nI) / 2; - saveDist = tmpDist; - bestLstar = pColor->spec.CIELab.L_star; - bestastar = pColor->spec.CIELab.a_star; - bestbstar = pColor->spec.CIELab.b_star; - bestChroma = chroma; - } - if (nI == nILast || nI == 0) { - break; - } - } - if (bestChroma >= maxChroma) { - pColor->spec.CIELab.L_star = maxLstar; - pColor->spec.CIELab.a_star = Lab_max.spec.CIELab.a_star; - pColor->spec.CIELab.b_star = Lab_max.spec.CIELab.b_star; - } else { - pColor->spec.CIELab.L_star = bestLstar; - pColor->spec.CIELab.a_star = bestastar; - pColor->spec.CIELab.b_star = bestbstar; - } - retval = _XcmsDIConvertColors(&myCCC, pColor, - ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIEXYZFormat); - - if (retval != XcmsFailure && pCompressed != NULL) { - *(pCompressed + i) = True; - } - } - return(retval); -} + +/* + * 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 + * CIELabGcLC.c + * + * DESCRIPTION + * Source for XcmsCIELabClipLab() gamut + * compression function. + */ + +#ifdef HAVE_CONFIG_H +#include +#endif +#include "Xlibint.h" +#include "Xcmsint.h" +#include +#include "Cv.h" + +/* + * INTERNALS + * Internal defines that need NOT be exported to any package or + * program using this package. + */ +#define MAXBISECTCOUNT 100 + + +/************************************************************************ + * * + * PUBLIC ROUTINES * + * * + ************************************************************************/ + +/* + * NAME + * XcmsCIELabClipLab - Return the closest L* and chroma + * + * SYNOPSIS + */ +/* ARGSUSED */ +Status +XcmsCIELabClipLab ( + XcmsCCC ccc, + XcmsColor *pColors_in_out, + unsigned int nColors, + unsigned int i, + Bool *pCompressed) +/* + * DESCRIPTION + * This routine will find the closest L* and chroma + * for a specific hue. The color input is converted to + * CIE L*u*v* format and returned as CIE XYZ format. + * + * Since this routine works with the L* within + * pColor_in_out intermediate results may be returned + * even though it may be invalid. + * + * RETURNS + * XcmsFailure - Failure + * XcmsSuccess - Succeeded + * + */ +{ + Status retval; + XcmsCCCRec myCCC; + XcmsColor *pColor; + XcmsColor Lab_max; + XcmsFloat hue, chroma, maxChroma; + XcmsFloat Chroma, bestChroma, Lstar, maxLstar, saveLstar; + XcmsFloat bestLstar, bestastar, bestbstar; + XcmsFloat nT, saveDist, tmpDist; + XcmsRGBi rgb_max; + int nCount, nMaxCount, nI, nILast; + + /* Use my own CCC */ + memcpy ((char *)&myCCC, (char *)ccc, sizeof(XcmsCCCRec)); + myCCC.clientWhitePt.format = XcmsUndefinedFormat;/* inherit screen white */ + myCCC.gamutCompProc = (XcmsCompressionProc)NULL;/* no gamut compression func */ + + /* + * Color specification passed as input can be assumed to: + * 1. Be in XcmsCIEXYZFormat + * 2. Already be white point adjusted for the Screen White Point. + * This means that the white point now associated with this + * color spec is the Screen White Point (even if the + * ccc->clientWhitePt differs). + */ + + pColor = pColors_in_out + i; + + if (ccc->visual->class < StaticColor) { + /* + * GRAY ! + */ + _XcmsDIConvertColors(ccc, pColor, ScreenWhitePointOfCCC(ccc), + 1, XcmsCIELabFormat); + _XcmsDIConvertColors(ccc, pColor, ScreenWhitePointOfCCC(ccc), + 1, XcmsCIEXYZFormat); + if (pCompressed) { + *(pCompressed + i) = True; + } + return(XcmsSuccess); + } + + /* Convert from CIEXYZ to CIELab format */ + if (_XcmsDIConvertColors(&myCCC, pColor, + ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIELabFormat) + == XcmsFailure) { + return(XcmsFailure); + } + + /* Step 1: compute the maximum L* and chroma for this hue. */ + /* This copy may be overkill but it preserves the pixel etc. */ + saveLstar = pColor->spec.CIELab.L_star; + hue = XCMS_CIELAB_PMETRIC_HUE(pColor->spec.CIELab.a_star, + pColor->spec.CIELab.b_star); + chroma = XCMS_CIELAB_PMETRIC_CHROMA(pColor->spec.CIELab.a_star, + pColor->spec.CIELab.b_star); + memcpy((char *)&Lab_max, (char *)pColor, sizeof(XcmsColor)); + if (_XcmsCIELabQueryMaxLCRGB (&myCCC, hue, &Lab_max, &rgb_max) + == XcmsFailure) { + return (XcmsFailure); + } + maxLstar = Lab_max.spec.CIELab.L_star; + + /* Now check and return the appropriate L* */ + if (saveLstar == maxLstar) { + /* When the L* input is equal to the maximum L* */ + /* merely return the maximum Lab point. */ + memcpy((char *)pColor, (char *)&Lab_max, sizeof(XcmsColor)); + retval = _XcmsDIConvertColors(&myCCC, pColor, + ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIEXYZFormat); + } else { + /* return the closest point on the hue leaf. */ + /* must do a bisection here to compute the delta e. */ + maxChroma = XCMS_CIELAB_PMETRIC_CHROMA(Lab_max.spec.CIELab.a_star, + Lab_max.spec.CIELab.b_star); + nMaxCount = MAXBISECTCOUNT; + nI = nMaxCount / 2; + bestLstar = Lstar = pColor->spec.CIELab.L_star; + bestastar = pColor->spec.CIELab.a_star; + bestbstar = pColor->spec.CIELab.b_star; + bestChroma = Chroma = chroma; + saveDist = XCMS_SQRT(((Chroma - maxChroma) * (Chroma - maxChroma)) + + ((Lstar - maxLstar) * (Lstar - maxLstar))); + for (nCount = 0; nCount < nMaxCount; nCount++) { + nT = (XcmsFloat) nI / (XcmsFloat) nMaxCount; + if (saveLstar > maxLstar) { + pColor->spec.RGBi.red = rgb_max.red * (1.0 - nT) + nT; + pColor->spec.RGBi.green = rgb_max.green * (1.0 - nT) + nT; + pColor->spec.RGBi.blue = rgb_max.blue * (1.0 - nT) + nT; + } else { + pColor->spec.RGBi.red = rgb_max.red - (rgb_max.red * nT); + pColor->spec.RGBi.green = rgb_max.green - (rgb_max.green * nT); + pColor->spec.RGBi.blue = rgb_max.blue - (rgb_max.blue * nT); + } + pColor->format = XcmsRGBiFormat; + + /* Convert from RGBi to CIE Lab */ + if (_XcmsConvertColorsWithWhitePt(&myCCC, pColor, + ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIELabFormat, + (Bool *) NULL) == XcmsFailure) { + return (XcmsFailure); + } + chroma = XCMS_CIELAB_PMETRIC_CHROMA(pColor->spec.CIELab.a_star, + pColor->spec.CIELab.b_star); + tmpDist = XCMS_SQRT(((Chroma - chroma) * (Chroma - chroma)) + + ((Lstar - pColor->spec.CIELab.L_star) * + (Lstar - pColor->spec.CIELab.L_star))); + nILast = nI; + if (tmpDist > saveDist) { + nI /= 2; + } else { + nI = (nMaxCount + nI) / 2; + saveDist = tmpDist; + bestLstar = pColor->spec.CIELab.L_star; + bestastar = pColor->spec.CIELab.a_star; + bestbstar = pColor->spec.CIELab.b_star; + bestChroma = chroma; + } + if (nI == nILast || nI == 0) { + break; + } + } + if (bestChroma >= maxChroma) { + pColor->spec.CIELab.L_star = maxLstar; + pColor->spec.CIELab.a_star = Lab_max.spec.CIELab.a_star; + pColor->spec.CIELab.b_star = Lab_max.spec.CIELab.b_star; + } else { + pColor->spec.CIELab.L_star = bestLstar; + pColor->spec.CIELab.a_star = bestastar; + pColor->spec.CIELab.b_star = bestbstar; + } + retval = _XcmsDIConvertColors(&myCCC, pColor, + ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIEXYZFormat); + + if (retval != XcmsFailure && pCompressed != NULL) { + *(pCompressed + i) = True; + } + } + return(retval); +} -- cgit v1.2.3