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

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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13
database/DBcellsrch.c
View File

@ -1804,7 +1804,7 @@ typedef struct _cellpropstruct {
* dbScaleProp --
*
* Callback function for dbScaleCell. Finds properties that represent
* internal geometry (FIXED_BBOX and MASKHINTS_*) and scale the values
* internal geometry (*_BBOX and MASKHINTS_*) and scale the values
* by the numerator / denominator values passed as a pointer to a Point
* structure, where p_x is the numerator value and p_y is the denominator
* value.
@ -1821,7 +1821,7 @@ int dbScaleProp(name, value, cps)
char *newvalue, *vptr;
Rect r;
if (!strcmp(name, "FIXED_BBOX"))
if ((strlen(name) > 5) && !strncmp(name + strlen(name) - 5, "_BBOX", 5))
{
if (sscanf(value, "%d %d %d %d", &r.r_xbot, &r.r_ybot,
&r.r_xtop, &r.r_ytop) == 4)
@ -1899,7 +1899,7 @@ int dbScaleProp(name, value, cps)
* dbMoveProp --
*
* Callback function for ??. Finds properties that represent
* internal geometry (FIXED_BBOX and MASKHINTS_*) and modifies the values
* internal geometry (*_BBOX and MASKHINTS_*) and modifies the values
* by the X, Y values passed as a pointer to a Point structure in ClientData.
*
* ----------------------------------------------------------------------------
@ -1914,7 +1914,8 @@ int dbMoveProp(name, value, cps)
char *newvalue;
Rect r;
if (!strcmp(name, "FIXED_BBOX") || !strncmp(name, "MASKHINTS_", 10))
if (((strlen(name) > 5) && !strncmp(name + strlen(name) - 5, "_BBOX", 5))
|| !strncmp(name, "MASKHINTS_", 10))
{
if (sscanf(value, "%d %d %d %d", &r.r_xbot, &r.r_ybot,
&r.r_xtop, &r.r_ytop) == 4)
@ -2099,7 +2100,7 @@ donecell:
}
/* Check all properties for ones with keys beginning with "MASKHINTS_"
* or the key "FIXED_BBOX", and scale them by the same amount as all
* or ending with "_BBOX", and scale them by the same amount as all
* the geometry.
*/
@ -2295,7 +2296,7 @@ donecell:
DBMovePoint(&cellDef->cd_extended.r_ur, origx, origy);
/* Check all properties for ones with keys beginning with "MASKHINTS_"
* or the key "FIXED_BBOX", and move them by the same amount as all
* or ending with "_BBOX", and move them by the same amount as all
* the geometry.
*/

52
lef/lefWrite.c
View File

@ -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 */