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author | marha <marha@users.sourceforge.net> | 2012-11-19 10:38:33 +0100 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2012-11-19 10:38:33 +0100 |
commit | 24635abae6008bef13e30d798b3f33abab412770 (patch) | |
tree | e799fbde24e0fd935af76b0bc48d30ef69f75d54 /libX11/src/xcms/LuvMxC.c | |
parent | e0844ae8b5ef87049537a7e0ebff81acc2695256 (diff) | |
parent | 6ce1d8f0f8c23e186175a7c84c21d7bfbe168dc5 (diff) | |
download | vcxsrv-24635abae6008bef13e30d798b3f33abab412770.tar.gz vcxsrv-24635abae6008bef13e30d798b3f33abab412770.tar.bz2 vcxsrv-24635abae6008bef13e30d798b3f33abab412770.zip |
Merge remote-tracking branch 'origin/released'
* origin/released:
Changed file permissions
dos -> unix
Conflicts:
libX11/include/X11/Xregion.h
libX11/src/ConvSel.c
libX11/src/CrGlCur.c
libX11/src/CrWindow.c
libX11/src/GetDflt.c
libX11/src/StrKeysym.c
libX11/src/Window.c
libX11/src/xkb/XKBBind.c
libX11/src/xkb/XKBGetMap.c
libX11/src/xkb/XKBSetGeom.c
libX11/src/xkb/XKBUse.c
libX11/src/xlibi18n/XimProto.h
libX11/src/xlibi18n/lcDynamic.c
libXdmcp/Key.c
libXdmcp/Write.c
libxcb/src/xcb_windefs.h
xkbcomp/keycodes.c
xkbcomp/xkbpath.c
xorg-server/hw/xwin/glx/winpriv.h
xorg-server/xkeyboard-config/rules/bin/ml1_s.sh
xorg-server/xkeyboard-config/rules/bin/ml1v1_s.sh
xorg-server/xkeyboard-config/rules/bin/ml1v_s.sh
xorg-server/xkeyboard-config/rules/bin/ml_s.sh
xorg-server/xkeyboard-config/rules/bin/mln_s.sh
xorg-server/xkeyboard-config/rules/bin/mlnvn_s.sh
xorg-server/xkeyboard-config/rules/bin/mlv_s.sh
xorg-server/xkeyboard-config/rules/compat/.gitignore
Diffstat (limited to 'libX11/src/xcms/LuvMxC.c')
-rw-r--r-- | libX11/src/xcms/LuvMxC.c | 408 |
1 files changed, 204 insertions, 204 deletions
diff --git a/libX11/src/xcms/LuvMxC.c b/libX11/src/xcms/LuvMxC.c index be8bc4f70..a67251477 100644 --- a/libX11/src/xcms/LuvMxC.c +++ b/libX11/src/xcms/LuvMxC.c @@ -1,204 +1,204 @@ -
-/*
- * 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
- * CIELuvMxC.c
- *
- * DESCRIPTION
- * Source for the XcmsCIELuvQueryMaxC() 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)2.2
-#define TOPL (XcmsFloat)100.0
-
-
-/************************************************************************
- * *
- * PUBLIC ROUTINES *
- * *
- ************************************************************************/
-
-/*
- * NAME
- * XcmsCIELuvQueryMaxC - max chroma for a hue_angle and L_star
- *
- * SYNOPSIS
- */
-Status
-XcmsCIELuvQueryMaxC(
- 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 XcmsCIELuvFormat.
- *
- *
- * 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, lastuStar, lastvStar, /*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.CIELuv.L_star = L_star;
- tmp.spec.CIELuv.u_star = XCMS_CIEUSTAROFHUE(hue, START_CHROMA);
- tmp.spec.CIELuv.v_star = XCMS_CIEVSTAROFHUE(hue, START_CHROMA);
- tmp.pixel = pColor_return->pixel;
- tmp.format = XcmsCIELuvFormat;
-
- /* Step 1: compute the maximum L_star and chroma for this hue. */
- memcpy((char *)&max_lc, (char *)&tmp, sizeof(XcmsColor));
- if (_XcmsCIELuvQueryMaxLCRGB(&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.CIELuv.L_star) {
- maxDist = max_lc.spec.CIELuv.L_star;
- } else {
- maxDist = TOPL - max_lc.spec.CIELuv.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.CIELuv.L_star;
-/* lastChroma = XCMS_CIELUV_PMETRIC_CHROMA(tmp.spec.CIELuv.u_star, */
-/* tmp.spec.CIELuv.v_star); */
- lastuStar = tmp.spec.CIELuv.u_star;
- lastvStar = tmp.spec.CIELuv.v_star;
- nT = (n_L_star - max_lc.spec.CIELuv.L_star) / maxDist * rFactor;
- /* printf("(n_L_star, nT) = %lf %lf ", n_L_star, nT); */
- 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 CIELuv */
- if (_XcmsConvertColorsWithWhitePt(&myCCC, &tmp,
- ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIELuvFormat,
- (Bool *) NULL) == XcmsFailure) {
- return(XcmsFailure);
- }
-
- /*
- * Now check if we've reached the target L_star
- */
- /* printf("result Lstar = %lf\n", tmp.spec.CIELuv.L_star); */
- if (tmp.spec.CIELuv.L_star <= L_star + EPS &&
- tmp.spec.CIELuv.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.CIELuv.L_star)) / (TOPL - L_star);
- } else {
- n_L_star *= L_star / tmp.spec.CIELuv.L_star;
- }
- if (tmp.spec.CIELuv.L_star <= prev_L_star + EPS &&
- tmp.spec.CIELuv.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.CIELuv.L_star - L_star)) {
- tmp.spec.CIELuv.u_star = lastuStar;
- tmp.spec.CIELuv.v_star = lastvStar;
-/* tmp.spec.CIELuv.u_star = XCMS_CIEUSTAROFHUE(hue, lastChroma); */
-/* tmp.spec.CIELuv.v_star = XCMS_CIEVSTAROFHUE(hue, lastChroma); */
- }
- tmp.spec.CIELuv.L_star = L_star;
- memcpy((char *)pColor_return, (char *)&tmp, sizeof(XcmsColor));
- return(XcmsSuccess);
-}
+ +/* + * 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 + * CIELuvMxC.c + * + * DESCRIPTION + * Source for the XcmsCIELuvQueryMaxC() 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)2.2 +#define TOPL (XcmsFloat)100.0 + + +/************************************************************************ + * * + * PUBLIC ROUTINES * + * * + ************************************************************************/ + +/* + * NAME + * XcmsCIELuvQueryMaxC - max chroma for a hue_angle and L_star + * + * SYNOPSIS + */ +Status +XcmsCIELuvQueryMaxC( + 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 XcmsCIELuvFormat. + * + * + * 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, lastuStar, lastvStar, /*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.CIELuv.L_star = L_star; + tmp.spec.CIELuv.u_star = XCMS_CIEUSTAROFHUE(hue, START_CHROMA); + tmp.spec.CIELuv.v_star = XCMS_CIEVSTAROFHUE(hue, START_CHROMA); + tmp.pixel = pColor_return->pixel; + tmp.format = XcmsCIELuvFormat; + + /* Step 1: compute the maximum L_star and chroma for this hue. */ + memcpy((char *)&max_lc, (char *)&tmp, sizeof(XcmsColor)); + if (_XcmsCIELuvQueryMaxLCRGB(&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.CIELuv.L_star) { + maxDist = max_lc.spec.CIELuv.L_star; + } else { + maxDist = TOPL - max_lc.spec.CIELuv.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.CIELuv.L_star; +/* lastChroma = XCMS_CIELUV_PMETRIC_CHROMA(tmp.spec.CIELuv.u_star, */ +/* tmp.spec.CIELuv.v_star); */ + lastuStar = tmp.spec.CIELuv.u_star; + lastvStar = tmp.spec.CIELuv.v_star; + nT = (n_L_star - max_lc.spec.CIELuv.L_star) / maxDist * rFactor; + /* printf("(n_L_star, nT) = %lf %lf ", n_L_star, nT); */ + 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 CIELuv */ + if (_XcmsConvertColorsWithWhitePt(&myCCC, &tmp, + ScreenWhitePointOfCCC(&myCCC), 1, XcmsCIELuvFormat, + (Bool *) NULL) == XcmsFailure) { + return(XcmsFailure); + } + + /* + * Now check if we've reached the target L_star + */ + /* printf("result Lstar = %lf\n", tmp.spec.CIELuv.L_star); */ + if (tmp.spec.CIELuv.L_star <= L_star + EPS && + tmp.spec.CIELuv.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.CIELuv.L_star)) / (TOPL - L_star); + } else { + n_L_star *= L_star / tmp.spec.CIELuv.L_star; + } + if (tmp.spec.CIELuv.L_star <= prev_L_star + EPS && + tmp.spec.CIELuv.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.CIELuv.L_star - L_star)) { + tmp.spec.CIELuv.u_star = lastuStar; + tmp.spec.CIELuv.v_star = lastvStar; +/* tmp.spec.CIELuv.u_star = XCMS_CIEUSTAROFHUE(hue, lastChroma); */ +/* tmp.spec.CIELuv.v_star = XCMS_CIEVSTAROFHUE(hue, lastChroma); */ + } + tmp.spec.CIELuv.L_star = L_star; + memcpy((char *)pColor_return, (char *)&tmp, sizeof(XcmsColor)); + return(XcmsSuccess); +} |