diff options
author | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2017-07-21 12:31:09 +0200 |
---|---|---|
committer | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2017-08-25 10:06:49 +0200 |
commit | c350873c7c977efe5210484f04160be45f84ba7e (patch) | |
tree | 717d33eb315f4def1307d65108d14715696cd5cf /nx-X11/lib/X11/LuvMxL.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/LuvMxL.c')
-rw-r--r-- | nx-X11/lib/X11/LuvMxL.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/nx-X11/lib/X11/LuvMxL.c b/nx-X11/lib/X11/LuvMxL.c deleted file mode 100644 index d1d495b08..000000000 --- a/nx-X11/lib/X11/LuvMxL.c +++ /dev/null @@ -1,216 +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 - * CIELuvMxL.c - * - * DESCRIPTION - * Source for the XcmsCIELuvQueryMaxL() 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_L_STAR (XcmsFloat)40.0 - - -/************************************************************************ - * * - * PUBLIC ROUTINES * - * * - ************************************************************************/ - -/* - * NAME - * XcmsCIELuvQueryMaxL - Compute max Lstar for a hue and chroma - * - * SYNOPSIS - */ -Status -XcmsCIELuvQueryMaxL( - XcmsCCC ccc, - XcmsFloat hue_angle, /* hue angle in degrees */ - XcmsFloat chroma, - XcmsColor *pColor_return) -/* - * DESCRIPTION - * Return the maximum Lstar for a specified hue_angle and chroma. - * - * 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 with no modifications - * - */ -{ - XcmsCCCRec myCCC; - XcmsColor max_lc, tmp, prev; - XcmsFloat max_chroma, tmp_chroma; - XcmsFloat hue, nT, nChroma, lastChroma, prevChroma; - XcmsFloat rFactor; - XcmsRGBi rgb_saved; - int nCount, nMaxCount; - - /* - * Check Arguments - */ - if (ccc == NULL || pColor_return == NULL) { - 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; - - while (hue_angle < 0.0) { - hue_angle += 360.0; - } - while (hue_angle >= 360.0) { - hue_angle -= 360.0; - } - - hue = radians(hue_angle); - tmp.spec.CIELuv.L_star = START_L_STAR; - tmp.spec.CIELuv.u_star = XCMS_CIEUSTAROFHUE(hue, chroma); - tmp.spec.CIELuv.v_star = XCMS_CIEVSTAROFHUE(hue, chroma); - tmp.pixel = pColor_return->pixel; - tmp.format = XcmsCIELuvFormat; - - /* Step 1: Obtain the maximum L_star and chroma for this hue. */ - if (_XcmsCIELuvQueryMaxLCRGB(&myCCC, hue, &max_lc, &rgb_saved) - == XcmsFailure) { - return(XcmsFailure); - } - - max_chroma = XCMS_CIELUV_PMETRIC_CHROMA(max_lc.spec.CIELuv.u_star, - max_lc.spec.CIELuv.v_star); - - if (max_chroma <= chroma) { - /* - * If the chroma is greater than the chroma for the - * maximum L/chroma point then the L_star is the - * the L_star for the maximum L_star/chroma point. - * This is an error but I return the best approximation I can. - * Thus the inconsistency. - */ - memcpy ((char *) pColor_return, (char *) &max_lc, sizeof (XcmsColor)); - return(XcmsSuccess); - } - - /* - * If the chroma is equal to the chroma for the - * maximum L_star/chroma point then the L_star is the - * the L_star for the maximum L* and chroma point. - */ - /* if (max_chroma == chroma) { - * memcpy ((char *) pColor_return, (char *) &max_lc, sizeof (XcmsColor)); - * return(XcmsSuccess); - * } - */ - - /* must do a bisection here to compute the maximum L* */ - /* save the structure input so that any elements that */ - /* are not touched are recopied later in the routine. */ - nChroma = chroma; - tmp_chroma = max_chroma; - lastChroma = -1.0; - nMaxCount = MAXBISECTCOUNT; - rFactor = 1.0; - - for (nCount = 0; nCount < nMaxCount; nCount++) { - prevChroma = lastChroma; - lastChroma = tmp_chroma; - nT = (1.0 - (nChroma / max_chroma)) * rFactor; - memcpy ((char *)&prev, (char *)&tmp, sizeof(XcmsColor)); - 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; - tmp.format = XcmsRGBiFormat; - - /* convert from RGB to CIELuv */ - if (_XcmsConvertColorsWithWhitePt(&myCCC, &tmp, - ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIELuvFormat, - (Bool *) NULL) == XcmsFailure) { - return(XcmsFailure); - } - - /* Now check the return against what is expected */ - tmp_chroma = XCMS_CIELUV_PMETRIC_CHROMA(tmp.spec.CIELuv.u_star, - tmp.spec.CIELuv.v_star); - if (tmp_chroma <= chroma + EPS && tmp_chroma >= chroma - EPS) { - /* Found It! */ - memcpy ((char *) pColor_return, (char *) &tmp, sizeof (XcmsColor)); - return(XcmsSuccess); - } - nChroma += chroma - tmp_chroma; - if (nChroma > max_chroma) { - nChroma = max_chroma; - rFactor *= 0.5; /* selective relaxation employed */ - } else if (nChroma < 0.0) { - if (XCMS_FABS(lastChroma - chroma) < - XCMS_FABS(tmp_chroma - chroma)) { - memcpy ((char *)pColor_return, (char *)&prev, - sizeof(XcmsColor)); - } else { - memcpy ((char *)pColor_return, (char *)&tmp, - sizeof(XcmsColor)); - } - return(XcmsSuccess); - } else if (tmp_chroma <= prevChroma + EPS && - tmp_chroma >= prevChroma - EPS) { - rFactor *= 0.5; /* selective relaxation employed */ - } - } - - if (nCount >= nMaxCount) { - if (XCMS_FABS(lastChroma - chroma) < - XCMS_FABS(tmp_chroma - chroma)) { - memcpy ((char *)pColor_return, (char *)&prev, - sizeof(XcmsColor)); - } else { - memcpy ((char *)pColor_return, (char *)&tmp, - sizeof(XcmsColor)); - } - } - memcpy ((char *) pColor_return, (char *) &tmp, sizeof (XcmsColor)); - return(XcmsSuccess); -} |