BSD 4_4_Lite2 development

Work on file usr/src/contrib/X11R5-lib/lib/X/XcmsAddDIC.c

Synthesized-from: CSRG/cd3/4.4BSD-Lite2

diff --git a/usr/src/contrib/X11R5-lib/lib/X/XcmsAddDIC.c b/usr/src/contrib/X11R5-lib/lib/X/XcmsAddDIC.c
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index 0000000..fb2e42b
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+++ b/usr/src/contrib/X11R5-lib/lib/X/XcmsAddDIC.c
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+/* $XConsortium: XcmsAddDIC.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[];
+\f
+/*
+ *     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);
+}