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/* $XConsortium: AddDIC.c,v 1.5 91/05/15 15:40:22 rws 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
*
*
*/
#include "Xlibint.h"
#include "Xcmsint.h"
/*
* DEFINES
*/
#define NextUnregDiCsID(lastid) \
(XCMS_UNREG_ID(lastid) ? ++lastid : XCMS_FIRST_UNREG_DI_ID)
#define MAX(x,y) ((x) < (y) ? (y) : (x))
/*
* EXTERNS
*/
extern XcmsPerDpyInfo *_XcmsFindDpyInfo();
extern XPointer *_XcmsPushPointerArray();
extern XcmsColorFormat _XcmsRegFormatOfPrefix();
extern XcmsColorSpace **_XcmsDIColorSpaces;
extern XcmsColorSpace *_XcmsDIColorSpacesInit[];
/*
* NAME
* XcmsAddColorSpace - Add a Device-Independent Color Space
*
* SYNOPSIS
*/
Status
XcmsAddColorSpace(pCS)
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);
}
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