mirror of
https://github.com/RTimothyEdwards/magic.git
synced 2026-08-30 09:58:55 +02:00
Tim Edwards
26da5adf98
check was too aggressive and would delete coincident instances based on cell def and bounding box only. If the cells were at different orientation or mirrored, they would be incorrectly flagged as coincident. Instances read from GDS could be deleted due to this issue.
283 lines
8.4 KiB
C
283 lines
8.4 KiB
C
/*
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* DBcell.c --
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*
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* Place and Delete subcells
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*
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* *********************************************************************
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* * Copyright (C) 1985, 1990 Regents of the University of California. *
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* * Permission to use, copy, modify, and distribute this *
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* * software and its documentation for any purpose and without *
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* * fee is hereby granted, provided that the above copyright *
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* * notice appear in all copies. The University of California *
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* * makes no representations about the suitability of this *
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* * software for any purpose. It is provided "as is" without *
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* * express or implied warranty. Export of this software outside *
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* * of the United States of America may require an export license. *
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* *********************************************************************
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*/
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#ifndef lint
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static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/database/DBcell.c,v 1.2 2008/12/11 04:20:04 tim Exp $";
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#endif /* not lint */
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#include <sys/types.h>
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#include <stdio.h>
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#include "utils/magic.h"
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#include "utils/malloc.h"
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#include "utils/geometry.h"
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#include "tiles/tile.h"
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#include "utils/hash.h"
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#include "database/database.h"
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#include "database/databaseInt.h"
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#include "utils/undo.h"
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#include "utils/signals.h"
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int placeCellFunc();
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int deleteCellFunc();
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Tile * clipCellTile();
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void dupTileBody();
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void cellTileMerge();
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bool ctbListMatch();
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void freeCTBList();
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struct searchArg
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{
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CellUse * celluse;
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Rect * rect;
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BPlane * bplane;
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};
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#define TOPLEFT 10
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#define TOPLEFTRIGHT 11
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#define TOPBOTTOM 12
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#define TOPBOTTOMLEFT 14
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#define TOPBOTTOMLEFTRIGHT 15
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int dbCellDebug = 0;
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void
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dbInstanceUnplace(CellUse *use)
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{
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ASSERT(use != (CellUse *) NULL, "dbInstanceUnplace");
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/* It's important that this code run with interrupts disabled,
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* or else we could leave the subcell tile plane in a weird
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* state.
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*/
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BPDelete(use->cu_parent->cd_cellPlane, use);
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}
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/*
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* ----------------------------------------------------------------------------
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*
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* DBCellFindDup --
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*
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* This procedure indicates whether a particular cell is already
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* present at a particular point in a particular parent. It is
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* used to avoid placing duplicate copies of a cell on top of
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* each other.
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*
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* Results:
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* The return value is NULL if there is not already a CellUse in parent
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* that is identical to use (same bbox and def). If there is a duplicate
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* already in parent, then the return value is a pointer to its CellUse.
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*
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* Side effects:
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* None.
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*
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* ----------------------------------------------------------------------------
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*/
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CellUse *
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DBCellFindDup(use, parent)
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CellUse *use; /* Use that is about to be placed in parent.
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* Is it a duplicate?
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*/
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CellDef *parent; /* Parent definiton: does it already have
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* something identical to use?
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*/
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{
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BPEnum bpe;
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CellUse *dupUse;
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BPEnumInit(&bpe, parent->cd_cellPlane, &use->cu_bbox, BPE_EQUAL,
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"DBCellFindDup");
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while (dupUse = BPEnumNext(&bpe))
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if (dupUse->cu_def == use->cu_def)
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/* Transforms must be equal---Aligned bounding boxes are
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* an insufficient measure of exact overlap.
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*/
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if ((dupUse->cu_transform.t_a == use->cu_transform.t_a) &&
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(dupUse->cu_transform.t_b == use->cu_transform.t_b) &&
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(dupUse->cu_transform.t_c == use->cu_transform.t_c) &&
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(dupUse->cu_transform.t_d == use->cu_transform.t_d) &&
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(dupUse->cu_transform.t_e == use->cu_transform.t_e) &&
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(dupUse->cu_transform.t_f == use->cu_transform.t_f))
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break;
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BPEnumTerm(&bpe);
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return dupUse;
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}
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/*
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* ----------------------------------------------------------------------------
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*
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* DBPlaceCell --
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* DBPlaceCellNoModify --
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*
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* Add a CellUse to the subcell tile plane of a CellDef.
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* Assumes prior check that the new CellUse is not an exact duplicate
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* of one already in place.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Modifies the subcell tile plane of the given CellDef.
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* Resets the plowing delta of the CellUse to 0. Sets the
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* CellDef's parent pointer to point to the parent def.
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*
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* ----------------------------------------------------------------------------
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*/
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void
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DBPlaceCell (use, def)
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CellUse * use; /* new celluse to add to subcell tile plane */
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CellDef * def; /* parent cell's definition */
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{
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Rect rect; /* argument to DBSrCellPlaneArea(), placeCellFunc() */
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BPlane *bplane; /* argument to DBSrCellPlaneArea(), placeCellFunc() */
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struct searchArg arg; /* argument to placeCellFunc() */
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ASSERT(use != (CellUse *) NULL, "DBPlaceCell");
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ASSERT(def, "DBPlaceCell");
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/* To do: Check non-duplicate placement, check non-duplicate ID */
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use->cu_parent = def;
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/* Be careful not to permit interrupts during this, or the
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* database could be left in a trashed state.
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*/
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SigDisableInterrupts();
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BPAdd(def->cd_cellPlane, use);
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def->cd_flags |= CDMODIFIED|CDGETNEWSTAMP;
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if (UndoIsEnabled())
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DBUndoCellUse(use, UNDO_CELL_PLACE);
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SigEnableInterrupts();
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}
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/* Like DBPlaceCell(), but don't change the flags of the parent cell. */
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/* This is needed by the bounding box recalculation routine, which may */
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/* cause the cell to be deleted and replaced for the purpose of */
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/* capturing the bounding box information in the BPlane structure, but */
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/* this does not mean that anything in the parent cell has changed. */
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void
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DBPlaceCellNoModify (use, def)
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CellUse * use; /* new celluse to add to subcell tile plane */
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CellDef * def; /* parent cell's definition */
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{
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Rect rect; /* argument to DBSrCellPlaneArea(), placeCellFunc() */
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BPlane *bplane; /* argument to DBSrCellPlaneArea(), placeCellFunc() */
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struct searchArg arg; /* argument to placeCellFunc() */
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ASSERT(use != (CellUse *) NULL, "DBPlaceCell");
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ASSERT(def, "DBPlaceCell");
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/* To do: Check non-duplicate placement, check non-duplicate ID */
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use->cu_parent = def;
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/* Be careful not to permit interrupts during this, or the
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* database could be left in a trashed state.
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*/
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SigDisableInterrupts();
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BPAdd(def->cd_cellPlane, use);
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if (UndoIsEnabled())
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DBUndoCellUse(use, UNDO_CELL_PLACE);
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SigEnableInterrupts();
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}
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/*
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* ----------------------------------------------------------------------------
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* DBDeleteCell --
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*
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* Remove a CellUse from the subcell tile plane of a CellDef.
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* If "nomodify" is TRUE, then don't set the parent cell's CDMODIFIED flag.
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* This is needed when recomputing the bounding box, which should not by
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* itself change the modified state.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Modifies the subcell tile plane of the CellDef, sets the
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* parent pointer of the deleted CellUse to NULL.
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* ----------------------------------------------------------------------------
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*/
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void
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DBDeleteCell (use)
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CellUse * use;
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{
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ASSERT(use != (CellUse *) NULL, "DBDeleteCell");
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/* It's important that this code run with interrupts disabled,
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* or else we could leave the subcell tile plane in a weird
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* state.
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*/
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SigDisableInterrupts();
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dbInstanceUnplace(use);
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use->cu_parent->cd_flags |= CDMODIFIED|CDGETNEWSTAMP;
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if (UndoIsEnabled())
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DBUndoCellUse(use, UNDO_CELL_DELETE);
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use->cu_parent = (CellDef *) NULL;
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SigEnableInterrupts();
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}
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/*
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* ----------------------------------------------------------------------------
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* DBDeleteCellNoModify --
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*
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* Remove a CellUse from the subcell tile plane of a CellDef, as above,
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* but don't set the parent cell's CDMODIFIED flag. This is needed when
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* recomputing the bounding box, which should not by itself change the
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* modified state.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Modifies the subcell tile plane of the CellDef, sets the
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* parent pointer of the deleted CellUse to NULL.
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* ----------------------------------------------------------------------------
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*/
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void
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DBDeleteCellNoModify (use)
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CellUse * use;
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{
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ASSERT(use != (CellUse *) NULL, "DBDeleteCell");
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/* It's important that this code run with interrupts disabled,
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* or else we could leave the subcell tile plane in a weird
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* state.
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*/
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SigDisableInterrupts();
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dbInstanceUnplace(use);
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if (UndoIsEnabled())
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DBUndoCellUse(use, UNDO_CELL_DELETE);
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use->cu_parent = (CellDef *) NULL;
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SigEnableInterrupts();
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}
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