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/* $Xorg: AddSF.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
* XcmsAddSF.c
*
* DESCRIPTION
* Source for XcmsAddFunctionSet
*
*
*/
#include "Xlibint.h"
#include "Xcmsint.h"
/*
* DEFINES
*/
#define NextUnregDdCsID(lastid) \
(XCMS_UNREG_ID(lastid) ? ++lastid : XCMS_FIRST_UNREG_DD_ID)
#define MIN(x,y) ((x) > (y) ? (y) : (x))
/*
* EXTERNS
*/
extern XPointer *_XcmsPushPointerArray();
extern XcmsColorFormat _XcmsRegFormatOfPrefix();
extern XcmsFunctionSet **_XcmsSCCFuncSets;
extern XcmsFunctionSet **_XcmsSCCFuncSetsInit;
extern XcmsColorSpace **_XcmsDDColorSpaces;
extern XcmsColorSpace **_XcmsDDColorSpacesInit;
/*
* NAME
* XcmsAddFunctionSet - Add an Screen Color Characterization
* Function Set
*
* SYNOPSIS
*/
Status
XcmsAddFunctionSet(pNewFS)
XcmsFunctionSet *pNewFS;
/*
* DESCRIPTION
* Additional Screen Color Characterization Function Sets are
* managed on a global basis. This means that with exception
* of the provided DD color spaces:
* RGB and RGBi
* DD color spaces may have different XcmsColorFormat IDs between
* clients. So, you must be careful when using XcmsColorFormat
* across clients! Use the routines XcmsFormatOfPrefix()
* and XcmsPrefixOfFormat() appropriately.
*
* RETURNS
* XcmsSuccess if succeeded, otherwise XcmsFailure
*
* CAVEATS
* Additional Screen Color Characterization Function Sets
* should be added prior to any use of the routine
* XcmsCreateCCC(). If not, XcmsCCC structures created
* prior to the call of this routines will not have had
* a chance to initialize using the added Screen Color
* Characterization Function Set.
*/
{
XcmsFunctionSet **papSCCFuncSets = _XcmsSCCFuncSets;
XcmsColorSpace **papNewCSs;
XcmsColorSpace *pNewCS, **paptmpCS;
XcmsColorFormat lastID = 0;
if (papSCCFuncSets != NULL) {
if ((papNewCSs = pNewFS->DDColorSpaces) == NULL) {
/*
* Error, new Screen Color Characterization Function Set
* missing color spaces
*/
return(XcmsFailure);
}
while ((pNewCS = *papNewCSs++) != NULL) {
if ((pNewCS->id = _XcmsRegFormatOfPrefix(pNewCS->prefix)) != 0) {
if (XCMS_DI_ID(pNewCS->id)) {
/* This is a Device-Independent Color Space */
return(XcmsFailure);
}
/*
* REGISTERED DD Color Space
* therefore use the registered ID.
*/
} else {
/*
* UNREGISTERED DD Color Space
* then see if the color space is already in
* _XcmsDDColorSpaces.
* a. If same prefix, then use the same ID.
* b. Otherwise, use a new ID.
*/
for (paptmpCS = _XcmsDDColorSpaces; *paptmpCS != NULL;
paptmpCS++){
lastID = MIN(lastID, (*paptmpCS)->id);
if (strcmp(pNewCS->prefix, (*paptmpCS)->prefix) == 0) {
pNewCS->id = (*paptmpCS)->id;
break;
}
}
if (pNewCS->id == 0) {
/* still haven't found one */
pNewCS->id = NextUnregDdCsID(lastID);
if ((paptmpCS = (XcmsColorSpace **)_XcmsPushPointerArray(
(XPointer *) _XcmsDDColorSpaces,
(XPointer) pNewCS,
(XPointer *) _XcmsDDColorSpacesInit)) == NULL) {
return(XcmsFailure);
}
_XcmsDDColorSpaces = paptmpCS;
}
}
}
}
if ((papSCCFuncSets = (XcmsFunctionSet **)
_XcmsPushPointerArray((XPointer *) _XcmsSCCFuncSets,
(XPointer) pNewFS,
(XPointer *)_XcmsSCCFuncSetsInit)) == NULL) {
return(XcmsFailure);
}
_XcmsSCCFuncSets = papSCCFuncSets;
return(XcmsSuccess);
}
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