Refined the new "gds maskhints" command option for GDS input from

yesterday's commit to allow the syntax "gds maskhints <types>", in
which mask hints can be restricted to a specific list of layers
rather than all layers which define mask hints in the cifoutput
rule.

calma/CalmaRdcl.c

@@ -50,7 +50,7 @@ int calmaNonManhattan;
 int CalmaFlattenLimit = 10;
 int NameConvertErrors = 0;
 bool CalmaRewound = FALSE;
-bool CalmaMaskHints = FALSE;
+TileTypeBitMask *CalmaMaskHints = NULL;
 
 extern HashTable calmaDefInitHash;
 

calma/calma.h

@@ -34,7 +34,7 @@ extern bool CalmaAddendum;
 extern bool CalmaNoDuplicates;
 extern time_t *CalmaDateStamp;
 extern bool CalmaUnique;
-extern bool CalmaMaskHints;
+extern TileTypeBitMask *CalmaMaskHints;
 extern bool CalmaMergeTiles;
 extern bool CalmaFlattenArrays;
 extern bool CalmaNoDRCCheck;

cif/CIFrdcl.c

@@ -723,7 +723,7 @@ CIFPaintCurrent(filetype)
     /* plane for that layer, compare to the input plane, and create	*/
     /* mask hint properties to make the output the same as the input.	*/
 
-    if (CalmaMaskHints)
+    if ((CalmaMaskHints != NULL) && (!TTMaskIsZero(CalmaMaskHints)))
     {
 	int j;
     	CIFOp *op, newop, subop;
@@ -737,6 +737,8 @@ CIFPaintCurrent(filetype)
 
     	for (i = 0; i < cifNReadLayers; i++)
 	{
+	    if (!TTMaskHasType(CalmaMaskHints, i)) continue;
+
 	    /* Does the input layer have a corresponding output layer? */
 	    in_out_map[i] = -1;
 	    for (j = 0; j < CIFCurStyle->cs_nLayers; j++)
@@ -787,6 +789,8 @@ CIFPaintCurrent(filetype)
 	    char locstr[512];
 	    Plane *tempp;
 
+	    if (!TTMaskHasType(CalmaMaskHints, i)) continue;
+
 	    j = in_out_map[i];
 	    if (j < 0) continue;
 

cif/CIFrdtech.c

@@ -248,9 +248,10 @@ CIFCalmaLayerToCifLayer(layer, datatype, calmaStyle)
  */
 
 void
-CIFParseReadLayers(string, mask)
+CIFParseReadLayers(string, mask, newok)
     char *string;		/* Comma-separated list of CIF layers. */
     TileTypeBitMask *mask;	/* Where to store bit mask. */
+    bool newok;			/* If TRUE, create new layers if they don't exist */
 {
     int i;
     char *p;
@@ -265,10 +266,10 @@ CIFParseReadLayers(string, mask)
 	if (p != NULL)
 	    *p = 0;
 
-	i = CIFReadNameToType(string, TRUE);
+	i = CIFReadNameToType(string, newok);
 	if (i >= 0)
 	    TTMaskSetType(mask, i);
-	else
+	else if (newok)
 	{
 	    HashEntry *he;
 	    TileTypeBitMask *amask;
@@ -280,6 +281,8 @@ CIFParseReadLayers(string, mask)
 		TTMaskSetMask(mask, amask);
 	    }
 	}
+	else
+	    TxError("Error:  CIF layer \"%s\" is unknown.\n", string);
 
 	if (p == NULL) break;
 	*p = ',';
@@ -743,7 +746,7 @@ CIFReadTechLine(sectionName, argc, argv)
 	    cifCurReadOp = (CIFOp *) mallocMagic(sizeof(CIFOp));
 	    cifCurReadOp->co_opcode = CIFOP_OR;
 	    cifCurReadOp->co_client = (ClientData)NULL;
-	    CIFParseReadLayers(argv[2], &cifCurReadOp->co_cifMask);
+	    CIFParseReadLayers(argv[2], &cifCurReadOp->co_cifMask, TRUE);
 	    TTMaskZero(&cifCurReadOp->co_paintMask);
 	    cifCurReadOp->co_next = NULL;
 	    cifCurReadOp->co_distance = 0;
@@ -793,7 +796,7 @@ CIFReadTechLine(sectionName, argc, argv)
 	    cifCurReadOp = (CIFOp *) mallocMagic(sizeof(CIFOp));
 	    cifCurReadOp->co_opcode = CIFOP_OR;
 	    cifCurReadOp->co_client = (ClientData)NULL;
-	    CIFParseReadLayers(argv[2], &cifCurReadOp->co_cifMask);
+	    CIFParseReadLayers(argv[2], &cifCurReadOp->co_cifMask, TRUE);
 	    TTMaskZero(&cifCurReadOp->co_paintMask);
 	    cifCurReadOp->co_next = NULL;
 	    cifCurReadOp->co_distance = 0;
@@ -865,7 +868,7 @@ CIFReadTechLine(sectionName, argc, argv)
 	    else
 		goto wrongNumArgs;
 	}
-	CIFParseReadLayers(argv[1], &mask);
+	CIFParseReadLayers(argv[1], &mask, TRUE);
 	for (i=0; i<MAXCIFRLAYERS; i+=1)
 	{
 	    if (TTMaskHasType(&mask,i))
@@ -891,7 +894,7 @@ CIFReadTechLine(sectionName, argc, argv)
 	int		i;
 
 	if (argc != 2) goto wrongNumArgs;
-	CIFParseReadLayers(argv[1], &mask);
+	CIFParseReadLayers(argv[1], &mask, TRUE);
 	/* trash the value in crs_labelLayer so that any labels on this
 	   layer get junked, also. dcs 4/11/90
         */
@@ -968,7 +971,7 @@ CIFReadTechLine(sectionName, argc, argv)
 	case CIFOP_OR:
 	case CIFOP_COPYUP:
 	    if (argc != 2) goto wrongNumArgs;
-	    CIFParseReadLayers(argv[1], &newOp->co_cifMask);
+	    CIFParseReadLayers(argv[1], &newOp->co_cifMask, TRUE);
 	    break;
 	case CIFOP_GROW:
 	case CIFOP_GROW_G:

cif/cif.h

@@ -62,6 +62,7 @@ extern void CIFReadTechStyleInit();
 extern void CIFReadTechInit();
 extern bool CIFReadTechLine();
 extern void CIFReadTechFinal();
+extern void CIFParseReadLayers();
 
 /* Externally-visible procedures: */
 

commands/CmdCD.c

@@ -545,9 +545,12 @@ CmdCalma(w, cmd)
 	    if (cmd->tx_argc == 2)
 	    {
 #ifdef MAGIC_WRAPPER
-		Tcl_SetObjResult(magicinterp, Tcl_NewBooleanObj(CalmaMaskHints));
+		if ((CalmaMaskHints != NULL) && !TTMaskIsZero(CalmaMaskHints))
+		    Tcl_SetObjResult(magicinterp, Tcl_NewBooleanObj(TRUE));
+		else
+		    Tcl_SetObjResult(magicinterp, Tcl_NewBooleanObj(FALSE));
 #else
-		if (CalmaMaskHints)
+		if ((CalmaMaskHints != NULL) && !TTMaskIsZero(CalmaMaskHints))
 		    TxPrintf("Mask hints generated from GDS input.\n");
 		else
 		    TxPrintf("No mask hints generated from GDS input.\n");
@@ -557,10 +560,21 @@ CmdCalma(w, cmd)
 	    else if (cmd->tx_argc != 3)
 		goto wrongNumArgs;
 
+	    if (CalmaMaskHints == NULL)
+	    {
+		CalmaMaskHints = (TileTypeBitMask *)mallocMagic(sizeof(TileTypeBitMask));
+		TTMaskZero(CalmaMaskHints);
+	    }
 	    option = Lookup(cmd->tx_argv[2], cmdCalmaYesNo);
 	    if (option < 0)
-		goto wrongNumArgs;
-	    CalmaMaskHints = (option < 4) ? FALSE : TRUE;
+		CIFParseReadLayers(cmd->tx_argv[2], CalmaMaskHints, FALSE);
+	    else
+	    {
+		if (option < 4)
+		    TTMaskZero(CalmaMaskHints);
+		else
+		    TTMaskSetMask(CalmaMaskHints, &DBAllTypeBits);
+	    }
 	    return;
 
 	case CALMA_MERGE:

doc/html/gds.html

@@ -105,7 +105,7 @@ Read GDSII input or generate GDSII output.
 		 Otherwise, the use of <B>yes</B> and <B>no</B> toggles the
 		 flattening behavior without affecting any value previously
 		 set by <B>flatten</B> <I>number</I>.
-	    <DT> <B>maskhints</B> [<B>yes</B>|<B>no</B>]
+	    <DT> <B>maskhints</B> [<B>yes</B>|<B>no</B>|<I>layers</I>]
 	    <DD> When set to <B>yes</B>, then after reading each cell
 		 definition from the GDS file, magic will re-generate the
 		 GDS output data from its internal representation of the
@@ -114,7 +114,9 @@ Read GDSII input or generate GDSII output.
 		 the <B>cifoutput</B> section for a GDS layer, magic will
 		 automatically generate the mask hint property for the cell
 		 such that writing GDS of the cell will produce exactly the
-		 same mask data as was in the original GDS file.
+		 same mask data as was in the original GDS file.  Alternatively
+		 to specifying "<B>yes</B>", a comma-separated list <I>layers</I>
+		 of GDS layers to create mask hints for can be specified
 		 (default <B>no</B>).
 	    <DT> <B>noduplicates</B> [<B>yes</B>|<B>no</B>]
 	    <DD> When reading a GDS file, this option forces magic to ignore