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author | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2017-07-21 12:31:09 +0200 |
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committer | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2017-08-25 10:06:49 +0200 |
commit | c350873c7c977efe5210484f04160be45f84ba7e (patch) | |
tree | 717d33eb315f4def1307d65108d14715696cd5cf /nx-X11/lib/X11/LabMxC.c | |
parent | 1472e7e37838f17b7ed948fa206e8c3434a9d346 (diff) | |
download | nx-libs-c350873c7c977efe5210484f04160be45f84ba7e.tar.gz nx-libs-c350873c7c977efe5210484f04160be45f84ba7e.tar.bz2 nx-libs-c350873c7c977efe5210484f04160be45f84ba7e.zip |
Convert nx-X11/lib/ build flow from imake to autotools.
Diffstat (limited to 'nx-X11/lib/X11/LabMxC.c')
-rw-r--r-- | nx-X11/lib/X11/LabMxC.c | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/nx-X11/lib/X11/LabMxC.c b/nx-X11/lib/X11/LabMxC.c deleted file mode 100644 index fcadd236a..000000000 --- a/nx-X11/lib/X11/LabMxC.c +++ /dev/null @@ -1,203 +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. 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 - * CIELabMxC.c - * - * DESCRIPTION - * Source for the XcmsCIELabQueryMaxC() gamut boundary - * querying routine. - * - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include "Xlibint.h" -#include "Xcmsint.h" -#include <math.h> -#include "Cv.h" - -/* - * DEFINES - */ -#define MAXBISECTCOUNT 100 -#define EPS (XcmsFloat)0.001 -#define START_CHROMA (XcmsFloat)3.6 -#define TOPL (XcmsFloat)100.0 - - -/************************************************************************ - * * - * PUBLIC ROUTINES * - * * - ************************************************************************/ - -/* - * NAME - * XcmsCIELabQueryMaxC - max chroma for a hue_angle and L_star - * - * SYNOPSIS - */ -Status -XcmsCIELabQueryMaxC( - XcmsCCC ccc, - XcmsFloat hue_angle, /* hue angle in degrees */ - XcmsFloat L_star, - XcmsColor *pColor_return) -/* - * DESCRIPTION - * Return the maximum chroma for a specific hue_angle and L_star. - * The returned format is in XcmsCIELabFormat. - * - * - * 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 tmp; - XcmsColor max_lc; - XcmsFloat n_L_star, last_L_star, prev_L_star; - XcmsFloat hue, lastaStar, lastbStar, /*lastChroma,*/ maxDist, nT, rFactor; - XcmsRGBi rgb_saved; - int nCount, nMaxCount; - - /* - * Check Arguments - */ - if (ccc == NULL || pColor_return == NULL) { - return(XcmsFailure); - } - - /* Use my own CCC and inherit screen white Pt */ - memcpy ((char *)&myCCC, (char *)ccc, sizeof(XcmsCCCRec)); - myCCC.clientWhitePt.format = XcmsUndefinedFormat; - myCCC.gamutCompProc = (XcmsCompressionProc)NULL;/* no gamut comp func */ - - while (hue_angle < 0.0) { - hue_angle += 360.0; - } - while (hue_angle >= 360.0) { - hue_angle -= 360.0; - } - - hue = radians(hue_angle); - tmp.spec.CIELab.L_star = L_star; - tmp.spec.CIELab.a_star = XCMS_CIEASTAROFHUE(hue, START_CHROMA); - tmp.spec.CIELab.b_star = XCMS_CIEBSTAROFHUE(hue, START_CHROMA); - tmp.pixel = pColor_return->pixel; - tmp.format = XcmsCIELabFormat; - - /* Step 1: compute the maximum L_star and chroma for this hue. */ - memcpy((char *)&max_lc, (char *)&tmp, sizeof(XcmsColor)); - if (_XcmsCIELabQueryMaxLCRGB(&myCCC, hue, &max_lc, &rgb_saved) - == XcmsFailure) { - return(XcmsFailure); - } - - /* - * Step 2: Do a bisection here to compute the maximum chroma - * Note the differences between when the point to be found - * is above the maximum LC point and when it is below. - */ - if (L_star <= max_lc.spec.CIELab.L_star) { - maxDist = max_lc.spec.CIELab.L_star; - } else { - maxDist = TOPL - max_lc.spec.CIELab.L_star; - } - - n_L_star = L_star; - last_L_star = -1.0; - nMaxCount = MAXBISECTCOUNT; - rFactor = 1.0; - - for (nCount = 0; nCount < nMaxCount; nCount++) { - prev_L_star = last_L_star; - last_L_star = tmp.spec.CIELab.L_star; -/* lastChroma = XCMS_CIELAB_PMETRIC_CHROMA(tmp.spec.CIELab.a_star, */ -/* tmp.spec.CIELab.b_star); */ - lastaStar = tmp.spec.CIELab.a_star; - lastbStar = tmp.spec.CIELab.b_star; - nT = (n_L_star - max_lc.spec.CIELab.L_star) / maxDist * rFactor; - if (nT > 0) { - tmp.spec.RGBi.red = rgb_saved.red * (1.0 - nT) + nT; - tmp.spec.RGBi.green = rgb_saved.green * (1.0 - nT) + nT; - tmp.spec.RGBi.blue = rgb_saved.blue * (1.0 - nT) + nT; - } else { - tmp.spec.RGBi.red = rgb_saved.red + (rgb_saved.red * nT); - tmp.spec.RGBi.green = rgb_saved.green + (rgb_saved.green * nT); - tmp.spec.RGBi.blue = rgb_saved.blue + (rgb_saved.blue * nT); - } - tmp.format = XcmsRGBiFormat; - - /* convert from RGB to CIELab */ - if (_XcmsConvertColorsWithWhitePt(&myCCC, &tmp, - ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIELabFormat, - (Bool *) NULL) == XcmsFailure) { - return(XcmsFailure); - } - - /* - * Now check if we've reached the target L_star - */ - /* printf("result Lstar = %lf\n", tmp.spec.CIELab.L_star); */ - if (tmp.spec.CIELab.L_star <= L_star + EPS && - tmp.spec.CIELab.L_star >= L_star - EPS) { - memcpy((char *)pColor_return, (char *)&tmp, sizeof(XcmsColor)); - return(XcmsSuccess); - } - if (nT > 0) { - n_L_star += ((TOPL - n_L_star) * - (L_star - tmp.spec.CIELab.L_star)) / (TOPL - L_star); - } else { - n_L_star *= L_star / tmp.spec.CIELuv.L_star; - } - if (tmp.spec.CIELab.L_star <= prev_L_star + EPS && - tmp.spec.CIELab.L_star >= prev_L_star - EPS) { - rFactor *= 0.5; /* selective relaxation employed */ - /* printf("rFactor = %lf\n", rFactor); */ - } - } - if (XCMS_FABS(last_L_star - L_star) < - XCMS_FABS(tmp.spec.CIELab.L_star - L_star)) { - tmp.spec.CIELab.a_star = lastaStar; - tmp.spec.CIELab.b_star = lastbStar; -/* tmp.spec.CIELab.a_star = XCMS_CIEASTAROFHUE(hue, lastChroma); */ -/* tmp.spec.CIELab.b_star = XCMS_CIEBSTAROFHUE(hue, lastChroma); */ - } - tmp.spec.CIELab.L_star = L_star; - memcpy((char *)pColor_return, (char *)&tmp, sizeof(XcmsColor)); - return(XcmsSuccess); -} |