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Added a method for a property named OBS_BBOX to specify a minimum

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area to be marked as an obstruction when writing a LEF file with
the "-hide" option.
This commit is contained in:
Tim Edwards
2022-11-30 16:29:37 -05:00
parent e5e1e04146
commit 256a47d7b9
2 changed files with 58 additions and 7 deletions
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lef/lefWrite.c
+51 -1
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@@ -553,6 +553,25 @@ lefGetBound(tile, cdata)
return 0;
}
/*
* ----------------------------------------------------------------------------
*
* lefHasPaint---
*
* Simple callback that returns 1 to stop the search when any tile matching
* the search mask is found.
*
* ----------------------------------------------------------------------------
*/
int
lefHasPaint(tile, clientData)
Tile *tile;
ClientData clientData;
{
return 1;
}
/*
* ----------------------------------------------------------------------------
*
@@ -1722,8 +1741,31 @@ lefWriteMacro(def, f, scale, setback, pinonly, toplayer, domaster)
/* sure that every pin has a legal path to the outside of the */
/* cell. Otherwise, this routine can block internal pins. */
Rect layerBound;
Rect layerBound, manualBound;
labelLinkedList *thislll;
bool propfound;
char *propvalue;
/* If there is a property OBS_BBOX, then use the value of the */
/* defined box to set the minimum hidden area. This will still */
/* get clipped to the setback. */
propvalue = (char *)DBPropGet(def, "OBS_BBOX", &propfound);
if (propfound)
{
if (sscanf(propvalue, "%d %d %d %d",
&(manualBound.r_xbot),
&(manualBound.r_ybot),
&(manualBound.r_xtop),
&(manualBound.r_ytop)) != 4)
{
TxError("Improper values for obstruction bounding box "
"OBS_BBOX property");
manualBound = GeoNullRect;
}
}
else
manualBound = GeoNullRect;
for (ttype = TT_TECHDEPBASE; ttype < DBNumTypes; ttype++)
if (TTMaskHasType(&lmask, ttype))
@@ -1736,6 +1778,14 @@ lefWriteMacro(def, f, scale, setback, pinonly, toplayer, domaster)
DBSrPaintArea((Tile *)NULL, lefFlatUse.cu_def->cd_planes[pNum],
&TiPlaneRect, &DBAllButSpaceAndDRCBits,
lefGetBound, (ClientData)(&layerBound));
/* Add any manual boundary if there is any */
/* material at all in the cell on this plane. */
if (!GEO_RECTNULL(&manualBound))
if (DBSrPaintArea((Tile *)NULL, def->cd_planes[pNum],
&TiPlaneRect, &DBAllButSpaceAndDRCBits,
lefHasPaint, (ClientData)NULL) == 1)
GeoInclude(&manualBound, &layerBound);
}
/* Clip layerBound to setback boundary */