1 files changed, 149 insertions, 0 deletions
diff --git a/nx-X11/lib/src/xcms/AddDIC.c b/nx-X11/lib/src/xcms/AddDIC.c
new file mode 100644
index 000000000..ecc6650ab
--- /dev/null
+++ b/nx-X11/lib/src/xcms/AddDIC.c
@@ -0,0 +1,149 @@
+
+/*
+ * 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
+ *
+ *
+ */
+
+#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);
+}