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Diffstat (limited to 'libX11/src/xcms/AddDIC.c')
| -rw-r--r-- | libX11/src/xcms/AddDIC.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/libX11/src/xcms/AddDIC.c b/libX11/src/xcms/AddDIC.c new file mode 100644 index 000000000..6f2987fd0 --- /dev/null +++ b/libX11/src/xcms/AddDIC.c @@ -0,0 +1,151 @@ +/* $Xorg: AddDIC.c,v 1.3 2000/08/17 19:44:29 cpqbld Exp $ */ + +/* + * 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 + * XcmsAddDIC.c + * + * DESCRIPTION + * Source for XcmsAddColorSpace + * + * + */ +/* $XFree86$ */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#include "Xcmsint.h" +#include "Cv.h" + + +/* + * DEFINES + */ +#define NextUnregDiCsID(lastid) \ + (XCMS_UNREG_ID(lastid) ? ++lastid : XCMS_FIRST_UNREG_DI_ID) +#define MAX(x,y) ((x) < (y) ? (y) : (x)) + + +/* + * NAME + * XcmsAddColorSpace - Add a Device-Independent Color Space + * + * SYNOPSIS + */ +Status +XcmsAddColorSpace(XcmsColorSpace *pCS) +/* + * DESCRIPTION + * DI Color Spaces are managed on a global basis. + * This means that with exception of the provided DI color spaces: + * CIEXYZ, CIExyY, CIELab, CIEuvY, CIELuv, and TekHVC + * DI color spaces may have different XcmsColorFormat IDs between + * clients. So, you must be careful when using XcmsColor + * structures between clients! Use the routines XcmsFormatOfPrefix() + * and XcmsPrefixOfFormat() appropriately. + * + * RETURNS + * XcmsSuccess if succeeded, otherwise XcmsFailure + */ +{ + XcmsColorSpace **papColorSpaces; + XcmsColorSpace *ptmpCS; + XcmsColorFormat lastID = 0; + + if ((pCS->id = _XcmsRegFormatOfPrefix(pCS->prefix)) != 0) { + if (XCMS_DD_ID(pCS->id)) { + /* This is a Device-Dependent Color Space */ + return(XcmsFailure); + } + /* + * REGISTERED DI Color Space + * then see if the color space has already been added to the + * system: + * a. If the same ID/prefix and same XcmsColorSpec is found, + * then its a duplicate, so return success. + * b. If same ID/prefix but different XcmsColorSpec is + * found, then add the color space to the front of the + * list using the same ID. This allows one to override + * an existing DI Color Space. + * c. Otherwise none found so just add the color space. + */ + if ((papColorSpaces = _XcmsDIColorSpaces) != NULL) { + while ((ptmpCS = *papColorSpaces++) != NULL) { + if (pCS->id == ptmpCS->id) { + if (pCS == ptmpCS) { + /* a. duplicate*/ + return(XcmsSuccess); + } + /* b. same ID/prefix but different XcmsColorSpace */ + break; + } + } + } + /* c. None found */ + } else { + /* + * UNREGISTERED DI Color Space + * then see if the color space has already been added to the + * system: + * a. If same prefix and XcmsColorSpec, then + * its a duplicate ... return success. + * b. If same prefix but different XcmsColorSpec, then + * add the color space to the front of the list using + * the same ID. This allows one to override an existing + * DI Color Space. + * c. Otherwise none found so, add the color space using the + * next unregistered ID for the connection. + */ + if ((papColorSpaces = _XcmsDIColorSpaces) != NULL) { + while ((ptmpCS = *papColorSpaces++) != NULL) { + lastID = MAX(lastID, ptmpCS->id); + if (strcmp(pCS->prefix, ptmpCS->prefix) == 0) { + if (pCS == ptmpCS) { + /* a. duplicate */ + return(XcmsSuccess); + } + /* b. same prefix but different XcmsColorSpec */ + pCS->id = ptmpCS->id; + goto AddColorSpace; + } + } + } + /* c. None found */ + pCS->id = NextUnregDiCsID(lastID); + } + + +AddColorSpace: + if ((papColorSpaces = (XcmsColorSpace **) + _XcmsPushPointerArray((XPointer *)_XcmsDIColorSpaces, + (XPointer)pCS, + (XPointer *)_XcmsDIColorSpacesInit)) == NULL) { + return(XcmsFailure); + } + _XcmsDIColorSpaces = papColorSpaces; + return(XcmsSuccess); +} |