2055 lines
55 KiB
C++
2055 lines
55 KiB
C++
/*
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* KiRouter - a push-and-(sometimes-)shove PCB router
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*
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* Copyright (C) 2013-2014 CERN
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* Copyright (C) 2016-2021 KiCad Developers, see AUTHORS.txt for contributors.
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* Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <deque>
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#include <cassert>
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#include <math/box2.h>
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#include <geometry/shape_compound.h>
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#include <wx/log.h>
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#include "pns_arc.h"
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#include "pns_line.h"
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#include "pns_node.h"
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#include "pns_debug_decorator.h"
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#include "pns_walkaround.h"
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#include "pns_shove.h"
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#include "pns_solid.h"
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#include "pns_optimizer.h"
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#include "pns_via.h"
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#include "pns_utils.h"
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#include "pns_router.h"
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#include "pns_topology.h"
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#include "time_limit.h"
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// fixme - move all logger calls to debug decorator
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typedef VECTOR2I::extended_type ecoord;
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namespace PNS {
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void SHOVE::replaceItems( ITEM* aOld, std::unique_ptr< ITEM > aNew )
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{
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OPT_BOX2I changed_area = ChangedArea( aOld, aNew.get() );
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if( changed_area )
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m_affectedArea = m_affectedArea ? m_affectedArea->Merge( *changed_area ) : *changed_area;
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m_currentNode->Replace( aOld, std::move( aNew ) );
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}
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void SHOVE::replaceLine( LINE& aOld, LINE& aNew, bool aIncludeInChangedArea, NODE* aNode )
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{
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if( aIncludeInChangedArea )
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{
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OPT_BOX2I changed_area = ChangedArea( aOld, aNew );
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if( changed_area )
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{
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SHAPE_RECT r( *changed_area );
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PNS_DBG(Dbg(), AddShape, &r, BLUE, 0, wxT( "shove-changed-area" ) );
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m_affectedArea =
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m_affectedArea ? m_affectedArea->Merge( *changed_area ) : *changed_area;
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}
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}
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bool foundPredecessor = false;
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LINE* rootLine = nullptr;
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// Keep track of the 'root lines', i.e. the unmodified (pre-shove) versions
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// of the affected tracks in a map. The optimizer can then query the pre-shove shape
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// for each shoved line and perform additional constraint checks (i.e. prevent overzealous
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// optimizations)
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// Check if the shoved line already has an ancestor (e.g. line from a previous shove
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// iteration/cursor movement)
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for( auto link : aOld.Links() )
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{
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auto oldLineIter = m_rootLineHistory.find( link );
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if( oldLineIter != m_rootLineHistory.end() )
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{
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rootLine = oldLineIter->second;
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foundPredecessor = true;
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break;
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}
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}
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// If found, use it, otherwise, create new entry in the map (we have a genuine new 'root' line)
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if( !foundPredecessor )
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{
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for( auto link : aOld.Links() )
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{
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if( ! rootLine )
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{
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rootLine = aOld.Clone();
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}
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m_rootLineHistory[link] = rootLine;
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}
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}
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// Now update the NODE (calling Replace invalidates the Links() in a LINE)
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if( aNode )
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{
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aNode->Replace( aOld, aNew );
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}
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else
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{
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m_currentNode->Replace( aOld, aNew );
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}
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// point the Links() of the new line to its oldest ancestor
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for( auto link : aNew.Links() )
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{
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m_rootLineHistory[ link ] = rootLine;
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}
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}
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int SHOVE::getClearance( const ITEM* aA, const ITEM* aB ) const
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{
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if( m_forceClearance >= 0 )
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return m_forceClearance;
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return m_currentNode->GetClearance( aA, aB );
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}
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int SHOVE::getHoleClearance( const ITEM* aA, const ITEM* aB ) const
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{
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if( m_forceClearance >= 0 )
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return m_forceClearance;
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return m_currentNode->GetHoleClearance( aA, aB );
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}
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void SHOVE::sanityCheck( LINE* aOld, LINE* aNew )
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{
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assert( aOld->CPoint( 0 ) == aNew->CPoint( 0 ) );
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assert( aOld->CPoint( -1 ) == aNew->CPoint( -1 ) );
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}
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SHOVE::SHOVE( NODE* aWorld, ROUTER* aRouter ) :
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ALGO_BASE( aRouter )
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{
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m_optFlagDisableMask = 0;
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m_forceClearance = -1;
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m_root = aWorld;
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m_currentNode = aWorld;
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SetDebugDecorator( aRouter->GetInterface()->GetDebugDecorator() );
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// Initialize other temporary variables:
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m_draggedVia = nullptr;
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m_iter = 0;
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m_multiLineMode = false;
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m_restrictSpringbackTagId = 0;
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m_springbackDoNotTouchNode = nullptr;
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}
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SHOVE::~SHOVE()
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{
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std::unordered_set<LINE*> alreadyDeleted;
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for( auto it : m_rootLineHistory )
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{
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auto it2 = alreadyDeleted.find( it.second );
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if( it2 == alreadyDeleted.end() )
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{
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alreadyDeleted.insert( it.second );
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delete it.second;
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}
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}
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}
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LINE SHOVE::assembleLine( const LINKED_ITEM* aSeg, int* aIndex )
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{
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return m_currentNode->AssembleLine( const_cast<LINKED_ITEM*>( aSeg ), aIndex, true );
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}
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// A dumb function that checks if the shoved line is shoved the right way, e.g. visually
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// "outwards" of the line/via applying pressure on it. Unfortunately there's no mathematical
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// concept of orientation of an open curve, so we use some primitive heuristics: if the shoved
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// line wraps around the start of the "pusher", it's likely shoved in wrong direction.
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// Update: there's no concept of an orientation of an open curve, but nonetheless Tom's dumb
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// as.... (censored)
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// Two open curves put together make a closed polygon... Tom should learn high school geometry!
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bool SHOVE::checkShoveDirection( const LINE& aCurLine, const LINE& aObstacleLine,
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const LINE& aShovedLine ) const
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{
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SHAPE_LINE_CHAIN::POINT_INSIDE_TRACKER checker( aCurLine.CPoint( 0) );
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checker.AddPolyline( aObstacleLine.CLine() );
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checker.AddPolyline( aShovedLine.CLine().Reverse() );
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bool inside = checker.IsInside();
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return !inside;
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}
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/*
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* Push aObstacleLine away from aCurLine's via by the clearance distance, returning the result
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* in aResultLine.
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*
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* Must be called only when aCurLine itself is on another layer (or has no segments) so that it
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* can be ignored.
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*/
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SHOVE::SHOVE_STATUS SHOVE::shoveLineFromLoneVia( const LINE& aCurLine, const LINE& aObstacleLine,
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LINE& aResultLine )
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{
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// Build a hull for aCurLine's via and re-walk aObstacleLine around it.
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int obstacleLineWidth = aObstacleLine.Width();
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int clearance = getClearance( &aCurLine, &aObstacleLine );
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/* int holeClearance = getHoleClearance( &aCurLine.Via(), &aObstacleLine );
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if( holeClearance + aCurLine.Via().Drill() / 2 > clearance + aCurLine.Via().Diameter() / 2 )
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clearance = holeClearance + aCurLine.Via().Drill() / 2 - aCurLine.Via().Diameter() / 2;
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*/
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SHAPE_LINE_CHAIN hull = aCurLine.Via().Hull( clearance, obstacleLineWidth, aCurLine.Layer() );
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SHAPE_LINE_CHAIN path_cw;
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SHAPE_LINE_CHAIN path_ccw;
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if( ! aObstacleLine.Walkaround( hull, path_cw, true ) )
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return SH_INCOMPLETE;
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if( ! aObstacleLine.Walkaround( hull, path_ccw, false ) )
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return SH_INCOMPLETE;
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const SHAPE_LINE_CHAIN& shortest = path_ccw.Length() < path_cw.Length() ? path_ccw : path_cw;
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if( shortest.PointCount() < 2 )
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return SH_INCOMPLETE;
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if( aObstacleLine.CPoint( -1 ) != shortest.CPoint( -1 ) )
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return SH_INCOMPLETE;
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if( aObstacleLine.CPoint( 0 ) != shortest.CPoint( 0 ) )
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return SH_INCOMPLETE;
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aResultLine.SetShape( shortest );
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if( aResultLine.Collide( &aCurLine, m_currentNode ) )
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return SH_INCOMPLETE;
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return SH_OK;
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}
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/*
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* Re-walk aObstacleLine around the given set of hulls, returning the result in aResultLine.
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*/
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SHOVE::SHOVE_STATUS SHOVE::shoveLineToHullSet( const LINE& aCurLine, const LINE& aObstacleLine,
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LINE& aResultLine, const HULL_SET& aHulls )
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{
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const SHAPE_LINE_CHAIN& obs = aObstacleLine.CLine();
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int attempt;
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PNS_DBG( Dbg(), BeginGroup, "shove-details", 1 );
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for( attempt = 0; attempt < 4; attempt++ )
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{
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bool invertTraversal = ( attempt >= 2 );
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bool clockwise = attempt % 2;
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int vFirst = -1, vLast = -1;
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LINE l( aObstacleLine );
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SHAPE_LINE_CHAIN path( l.CLine() );
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for( int i = 0; i < (int) aHulls.size(); i++ )
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{
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const SHAPE_LINE_CHAIN& hull = aHulls[invertTraversal ? aHulls.size() - 1 - i : i];
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PNS_DBG( Dbg(), AddShape, &hull, YELLOW, 10000, wxString::Format( "hull[%d]", i ) );
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PNS_DBG( Dbg(), AddShape, &path, WHITE, l.Width(), wxString::Format( "path[%d]", i ) );
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PNS_DBG( Dbg(), AddShape, &obs, LIGHTGRAY, aObstacleLine.Width(), wxString::Format( "obs[%d]", i ) );
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if( !l.Walkaround( hull, path, clockwise ) )
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{
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PNS_DBG( Dbg(), Message, wxString::Format( wxT( "Fail-Walk %s %s %d\n" ),
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hull.Format().c_str(),
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l.CLine().Format().c_str(),
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clockwise? 1 : 0) );
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PNS_DBGN( Dbg(), EndGroup );
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return SH_INCOMPLETE;
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}
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PNS_DBG( Dbg(), AddShape, &path, WHITE, l.Width(), wxString::Format( "path-presimp[%d]", i ) );
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path.Simplify();
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PNS_DBG( Dbg(), AddShape, &path, WHITE, l.Width(), wxString::Format( "path-postsimp[%d]", i ) );
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l.SetShape( path );
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}
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for( int i = 0; i < std::min( path.PointCount(), obs.PointCount() ); i++ )
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{
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if( path.CPoint( i ) != obs.CPoint( i ) )
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{
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vFirst = i;
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break;
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}
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}
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int k = obs.PointCount() - 1;
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for( int i = path.PointCount() - 1; i >= 0 && k >= 0; i--, k-- )
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{
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if( path.CPoint( i ) != obs.CPoint( k ) )
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{
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vLast = i;
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break;
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}
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}
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if( ( vFirst < 0 || vLast < 0 ) && !path.CompareGeometry( aObstacleLine.CLine() ) )
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{
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PNS_DBG( Dbg(), Message, wxString::Format( wxT( "attempt %d fail vfirst-last" ),
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attempt ) );
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continue;
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}
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if( path.CPoint( -1 ) != obs.CPoint( -1 ) || path.CPoint( 0 ) != obs.CPoint( 0 ) )
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{
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PNS_DBG( Dbg(), Message, wxString::Format( wxT( "attempt %d fail vend-start\n" ),
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attempt ) );
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continue;
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}
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if( !checkShoveDirection( aCurLine, aObstacleLine, l ) )
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{
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PNS_DBG( Dbg(), Message, wxString::Format( wxT( "attempt %d fail direction-check" ),
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attempt ) );
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aResultLine.SetShape( l.CLine() );
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continue;
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}
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if( path.SelfIntersecting() )
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{
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PNS_DBG( Dbg(), Message, wxString::Format( wxT( "attempt %d fail self-intersect" ),
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attempt ) );
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continue;
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}
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bool colliding = l.Collide( &aCurLine, m_currentNode );
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if(( aCurLine.Marker() & MK_HEAD ) && !colliding )
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{
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JOINT* jtStart = m_currentNode->FindJoint( aCurLine.CPoint( 0 ), &aCurLine );
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for( ITEM* item : jtStart->LinkList() )
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{
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if( item->Collide( &l, m_currentNode ) )
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colliding = true;
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}
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}
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if( colliding )
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{
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PNS_DBG( Dbg(), Message, wxString::Format( wxT( "attempt %d fail coll-check" ),
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attempt ) );
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continue;
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}
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aResultLine.SetShape( l.CLine() );
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PNS_DBGN( Dbg(), EndGroup );
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return SH_OK;
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}
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PNS_DBGN( Dbg(), EndGroup );
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return SH_INCOMPLETE;
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}
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/*
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* Push aObstacleLine line away from aCurLine by the clearance distance, and return the result in
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* aResultLine.
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*/
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SHOVE::SHOVE_STATUS SHOVE::ShoveObstacleLine( const LINE& aCurLine, const LINE& aObstacleLine,
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LINE& aResultLine )
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{
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aResultLine.ClearLinks();
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bool obstacleIsHead = false;
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for( LINKED_ITEM* s : aObstacleLine.Links() )
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{
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if( s->Marker() & MK_HEAD )
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{
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obstacleIsHead = true;
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break;
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}
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}
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SHOVE_STATUS rv;
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bool viaOnEnd = aCurLine.EndsWithVia();
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PNS_DBG( Dbg(), Message, wxString::Format( wxT( "shove process-single: voe1 %d voe2 %d" ),
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aCurLine.EndsWithVia()?1:0, aObstacleLine.EndsWithVia()?1:0 ) );
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if( viaOnEnd && ( !aCurLine.LayersOverlap( &aObstacleLine ) || aCurLine.SegmentCount() == 0 ) )
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{
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// Shove aObstacleLine to the hull of aCurLine's via.
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rv = shoveLineFromLoneVia( aCurLine, aObstacleLine, aResultLine );
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}
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else
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{
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// Build a set of hulls around the segments of aCurLine. Hulls are at the clearance
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// distance + aObstacleLine's linewidth so that when re-walking aObstacleLine along the
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// hull it will be at the appropriate clearance.
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int obstacleLineWidth = aObstacleLine.Width();
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int clearance = getClearance( &aCurLine, &aObstacleLine ) + 1;
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int currentLineSegmentCount = aCurLine.SegmentCount();
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HULL_SET hulls;
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hulls.reserve( currentLineSegmentCount + 1 );
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PNS_DBG( Dbg(), Message, wxString::Format( wxT( "shove process-single: cur net %d obs %d cl %d" ),
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aCurLine.Net(), aObstacleLine.Net(), clearance ) );
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for( int i = 0; i < currentLineSegmentCount; i++ )
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{
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SEGMENT seg( aCurLine, aCurLine.CSegment( i ) );
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int extra = 0;
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// Arcs need additional clearance to ensure the hulls are always bigger than the arc
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if( aCurLine.CLine().IsArcSegment( i ) )
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extra = SHAPE_ARC::DefaultAccuracyForPCB();
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if( extra > 0 )
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{
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PNS_DBG( Dbg(), Message, wxString::Format( wxT( "shove add-extra-clearance %d" ),
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extra ) );
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}
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SHAPE_LINE_CHAIN hull =
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seg.Hull( clearance + extra, obstacleLineWidth, aObstacleLine.Layer() );
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hulls.push_back( hull );
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}
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if( viaOnEnd )
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{
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const VIA& via = aCurLine.Via();
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int viaClearance = getClearance( &via, &aObstacleLine );
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/*int holeClearance = getHoleClearance( &via, &aObstacleLine );
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if( holeClearance + via.Drill() / 2 > viaClearance + via.Diameter() / 2 )
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viaClearance = holeClearance + via.Drill() / 2 - via.Diameter() / 2;*/
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hulls.push_back( aCurLine.Via().Hull( viaClearance, obstacleLineWidth ) );
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}
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rv = shoveLineToHullSet( aCurLine, aObstacleLine, aResultLine, hulls );
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}
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if( obstacleIsHead )
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aResultLine.Mark( aResultLine.Marker() | MK_HEAD );
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return rv;
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}
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/*
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* TODO describe....
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*/
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SHOVE::SHOVE_STATUS SHOVE::onCollidingSegment( LINE& aCurrent, SEGMENT* aObstacleSeg )
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{
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int segIndex;
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LINE obstacleLine = assembleLine( aObstacleSeg, &segIndex );
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LINE shovedLine( obstacleLine );
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SEGMENT tmp( *aObstacleSeg );
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if( obstacleLine.HasLockedSegments() )
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{
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PNS_DBG(Dbg(), Message, "try walk (locked segments)");
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return SH_TRY_WALK;
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}
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SHOVE_STATUS rv = ShoveObstacleLine( aCurrent, obstacleLine, shovedLine );
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|
|
const double extensionWalkThreshold = 1.0;
|
|
|
|
double obsLen = obstacleLine.CLine().Length();
|
|
double shovedLen = shovedLine.CLine().Length();
|
|
double extensionFactor = 0.0;
|
|
|
|
if( obsLen != 0.0f )
|
|
extensionFactor = shovedLen / obsLen - 1.0;
|
|
|
|
if( extensionFactor > extensionWalkThreshold )
|
|
return SH_TRY_WALK;
|
|
|
|
assert( obstacleLine.LayersOverlap( &shovedLine ) );
|
|
|
|
if( Dbg() )
|
|
{
|
|
PNS_DBG( Dbg(), AddItem, aObstacleSeg, BLUE, 0, wxT( "shove-changed-area" ) );
|
|
PNS_DBG( Dbg(), AddItem, &aCurrent, RED, 10000, wxString::Format( "current-line [l %d v %d]", aCurrent.Layer(), aCurrent.EndsWithVia() ) );
|
|
PNS_DBG( Dbg(), AddItem, &obstacleLine, GREEN, 10000, wxString::Format( "obstacle-line [l %d v %d]", obstacleLine.Layer(), obstacleLine.EndsWithVia() ) );
|
|
PNS_DBG( Dbg(), AddItem, &shovedLine, BLUE, 10000, wxT( "shoved-line" ) );
|
|
}
|
|
|
|
if( rv == SH_OK )
|
|
{
|
|
if( shovedLine.Marker() & MK_HEAD )
|
|
{
|
|
if( m_multiLineMode )
|
|
return SH_INCOMPLETE;
|
|
|
|
m_newHead = shovedLine;
|
|
}
|
|
|
|
int rank = aCurrent.Rank();
|
|
shovedLine.SetRank( rank - 1 );
|
|
|
|
sanityCheck( &obstacleLine, &shovedLine );
|
|
replaceLine( obstacleLine, shovedLine );
|
|
|
|
if( !pushLineStack( shovedLine ) )
|
|
rv = SH_INCOMPLETE;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
/*
|
|
* TODO describe....
|
|
*/
|
|
SHOVE::SHOVE_STATUS SHOVE::onCollidingArc( LINE& aCurrent, ARC* aObstacleArc )
|
|
{
|
|
int segIndex;
|
|
LINE obstacleLine = assembleLine( aObstacleArc, &segIndex );
|
|
LINE shovedLine( obstacleLine );
|
|
ARC tmp( *aObstacleArc );
|
|
|
|
if( obstacleLine.HasLockedSegments() )
|
|
return SH_TRY_WALK;
|
|
|
|
SHOVE_STATUS rv = ShoveObstacleLine( aCurrent, obstacleLine, shovedLine );
|
|
|
|
const double extensionWalkThreshold = 1.0;
|
|
|
|
double obsLen = obstacleLine.CLine().Length();
|
|
double shovedLen = shovedLine.CLine().Length();
|
|
double extensionFactor = 0.0;
|
|
|
|
if( obsLen != 0.0f )
|
|
extensionFactor = shovedLen / obsLen - 1.0;
|
|
|
|
if( extensionFactor > extensionWalkThreshold )
|
|
return SH_TRY_WALK;
|
|
|
|
assert( obstacleLine.LayersOverlap( &shovedLine ) );
|
|
|
|
PNS_DBG( Dbg(), AddItem, &tmp, WHITE, 10000, wxT( "obstacle-arc" ) );
|
|
PNS_DBG( Dbg(), AddItem, &aCurrent, RED, 10000, wxT( "current-line" ) );
|
|
PNS_DBG( Dbg(), AddItem, &obstacleLine, GREEN, 10000, wxT( "obstacle-line" ) );
|
|
PNS_DBG( Dbg(), AddItem, &shovedLine, BLUE, 10000, wxT( "shoved-line" ) );
|
|
|
|
if( rv == SH_OK )
|
|
{
|
|
if( shovedLine.Marker() & MK_HEAD )
|
|
{
|
|
if( m_multiLineMode )
|
|
return SH_INCOMPLETE;
|
|
|
|
m_newHead = shovedLine;
|
|
}
|
|
|
|
int rank = aCurrent.Rank();
|
|
shovedLine.SetRank( rank - 1 );
|
|
|
|
sanityCheck( &obstacleLine, &shovedLine );
|
|
replaceLine( obstacleLine, shovedLine );
|
|
|
|
if( !pushLineStack( shovedLine ) )
|
|
rv = SH_INCOMPLETE;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
/*
|
|
* TODO describe....
|
|
*/
|
|
SHOVE::SHOVE_STATUS SHOVE::onCollidingLine( LINE& aCurrent, LINE& aObstacle )
|
|
{
|
|
LINE shovedLine( aObstacle );
|
|
|
|
SHOVE_STATUS rv = ShoveObstacleLine( aCurrent, aObstacle, shovedLine );
|
|
|
|
PNS_DBG( Dbg(), AddItem, &aObstacle, RED, 100000, wxT( "obstacle-line" ) );
|
|
PNS_DBG( Dbg(), AddItem, &aCurrent, GREEN, 150000, wxT( "current-line" ) );
|
|
PNS_DBG( Dbg(), AddItem, &shovedLine, BLUE, 200000, wxT( "shoved-line" ) );
|
|
|
|
if( rv == SH_OK )
|
|
{
|
|
if( shovedLine.Marker() & MK_HEAD )
|
|
{
|
|
if( m_multiLineMode )
|
|
return SH_INCOMPLETE;
|
|
|
|
m_newHead = shovedLine;
|
|
}
|
|
|
|
sanityCheck( &aObstacle, &shovedLine );
|
|
replaceLine( aObstacle, shovedLine );
|
|
|
|
int rank = aObstacle.Rank();
|
|
shovedLine.SetRank( rank - 1 );
|
|
|
|
|
|
if( !pushLineStack( shovedLine ) )
|
|
{
|
|
rv = SH_INCOMPLETE;
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
/*
|
|
* TODO describe....
|
|
*/
|
|
SHOVE::SHOVE_STATUS SHOVE::onCollidingSolid( LINE& aCurrent, ITEM* aObstacle, OBSTACLE& aObstacleInfo )
|
|
{
|
|
WALKAROUND walkaround( m_currentNode, Router() );
|
|
LINE walkaroundLine( aCurrent );
|
|
|
|
if( aCurrent.EndsWithVia() )
|
|
{
|
|
VIA vh = aCurrent.Via();
|
|
VIA* via = nullptr;
|
|
JOINT* jtStart = m_currentNode->FindJoint( vh.Pos(), &aCurrent );
|
|
|
|
if( !jtStart )
|
|
return SH_INCOMPLETE;
|
|
|
|
for( ITEM* item : jtStart->LinkList() )
|
|
{
|
|
if( item->OfKind( ITEM::VIA_T ) )
|
|
{
|
|
via = (VIA*) item;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if( via && via->Collide( aObstacle, m_currentNode ) )
|
|
return onCollidingVia( aObstacle, via, aObstacleInfo );
|
|
}
|
|
|
|
TOPOLOGY topo( m_currentNode );
|
|
|
|
std::set<ITEM*> cluster = topo.AssembleCluster( aObstacle, aCurrent.Layers().Start() );
|
|
|
|
|
|
|
|
PNS_DBG( Dbg(), BeginGroup, "walk-cluster", 1 );
|
|
|
|
for( auto item : cluster )
|
|
{
|
|
PNS_DBG( Dbg(), AddItem, item, RED, 10000, wxT( "cl-item" ) );
|
|
}
|
|
|
|
PNS_DBGN( Dbg(), EndGroup );
|
|
|
|
|
|
walkaround.SetDebugDecorator( Dbg() );
|
|
walkaround.SetSolidsOnly( false );
|
|
walkaround.RestrictToSet( true, cluster );
|
|
walkaround.SetIterationLimit( 16 ); // fixme: make configurable
|
|
|
|
int currentRank = aCurrent.Rank();
|
|
int nextRank;
|
|
|
|
bool success = false;
|
|
|
|
for( int attempt = 0; attempt < 2; attempt++ )
|
|
{
|
|
if( attempt == 1 || Settings().JumpOverObstacles() )
|
|
{
|
|
|
|
nextRank = currentRank - 1;
|
|
}
|
|
else
|
|
{
|
|
nextRank = currentRank + 10000;
|
|
}
|
|
|
|
|
|
WALKAROUND::WALKAROUND_STATUS status = walkaround.Route( aCurrent, walkaroundLine, false );
|
|
|
|
if( status != WALKAROUND::DONE )
|
|
continue;
|
|
|
|
walkaroundLine.ClearLinks();
|
|
walkaroundLine.Unmark();
|
|
walkaroundLine.Line().Simplify();
|
|
|
|
if( walkaroundLine.HasLoops() )
|
|
continue;
|
|
|
|
if( aCurrent.Marker() & MK_HEAD )
|
|
{
|
|
walkaroundLine.Mark( MK_HEAD );
|
|
|
|
if( m_multiLineMode )
|
|
continue;
|
|
|
|
m_newHead = walkaroundLine;
|
|
}
|
|
|
|
sanityCheck( &aCurrent, &walkaroundLine );
|
|
|
|
if( !m_lineStack.empty() )
|
|
{
|
|
LINE lastLine = m_lineStack.front();
|
|
|
|
if( lastLine.Collide( &walkaroundLine, m_currentNode ) )
|
|
{
|
|
LINE dummy( lastLine );
|
|
|
|
if( ShoveObstacleLine( walkaroundLine, lastLine, dummy ) == SH_OK )
|
|
{
|
|
success = true;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
success = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(!success)
|
|
return SH_INCOMPLETE;
|
|
|
|
replaceLine( aCurrent, walkaroundLine );
|
|
walkaroundLine.SetRank( nextRank );
|
|
|
|
PNS_DBG( Dbg(), AddItem, &aCurrent, RED, 10000, wxT( "current-line" ) );
|
|
PNS_DBG( Dbg(), AddItem, &walkaroundLine, BLUE, 10000, wxT( "walk-line" ) );
|
|
|
|
popLineStack();
|
|
|
|
if( !pushLineStack( walkaroundLine ) )
|
|
return SH_INCOMPLETE;
|
|
|
|
return SH_OK;
|
|
}
|
|
|
|
|
|
/*
|
|
* Pops NODE stackframes which no longer collide with aHeadSet. Optionally sets aDraggedVia
|
|
* to the dragged via of the last unpopped state.
|
|
*/
|
|
NODE* SHOVE::reduceSpringback( const ITEM_SET& aHeadSet, VIA_HANDLE& aDraggedVia )
|
|
{
|
|
while( !m_nodeStack.empty() )
|
|
{
|
|
SPRINGBACK_TAG& spTag = m_nodeStack.back();
|
|
|
|
// Prevent the springback algo from erasing NODEs that might contain items used by the ROUTER_TOOL/LINE_PLACER.
|
|
// I noticed this can happen for the endItem provided to LINE_PLACER::Move() and cause a nasty crash.
|
|
if( spTag.m_node == m_springbackDoNotTouchNode )
|
|
break;
|
|
|
|
std::optional<OBSTACLE> obs = spTag.m_node->CheckColliding( aHeadSet );
|
|
|
|
if( !obs && !spTag.m_locked )
|
|
{
|
|
aDraggedVia = spTag.m_draggedVia;
|
|
aDraggedVia.valid = true;
|
|
|
|
delete spTag.m_node;
|
|
m_nodeStack.pop_back();
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
return m_nodeStack.empty() ? m_root : m_nodeStack.back().m_node;
|
|
}
|
|
|
|
|
|
/*
|
|
* Push the current NODE on to the stack. aDraggedVia is the dragged via *before* the push
|
|
* (which will be restored in the event the stackframe is popped).
|
|
*/
|
|
bool SHOVE::pushSpringback( NODE* aNode, const OPT_BOX2I& aAffectedArea, VIA* aDraggedVia )
|
|
{
|
|
SPRINGBACK_TAG st;
|
|
OPT_BOX2I prev_area;
|
|
|
|
if( !m_nodeStack.empty() )
|
|
prev_area = m_nodeStack.back().m_affectedArea;
|
|
|
|
if( aDraggedVia )
|
|
{
|
|
st.m_draggedVia = aDraggedVia->MakeHandle();
|
|
}
|
|
|
|
st.m_node = aNode;
|
|
|
|
if( aAffectedArea )
|
|
{
|
|
if( prev_area )
|
|
st.m_affectedArea = prev_area->Merge( *aAffectedArea );
|
|
else
|
|
st.m_affectedArea = aAffectedArea;
|
|
}
|
|
else
|
|
{
|
|
st.m_affectedArea = prev_area;
|
|
}
|
|
|
|
st.m_seq = ( m_nodeStack.empty() ? 1 : m_nodeStack.back().m_seq + 1 );
|
|
st.m_locked = false;
|
|
|
|
m_nodeStack.push_back( st );
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
* Push or shove a via by at least aForce. (The via might be pushed or shoved slightly further
|
|
* to keep it from landing on an existing joint.)
|
|
*/
|
|
SHOVE::SHOVE_STATUS SHOVE::pushOrShoveVia( VIA* aVia, const VECTOR2I& aForce, int aCurrentRank )
|
|
{
|
|
LINE_PAIR_VEC draggedLines;
|
|
VECTOR2I p0( aVia->Pos() );
|
|
JOINT* jt = m_currentNode->FindJoint( p0, aVia );
|
|
VECTOR2I p0_pushed( p0 + aForce );
|
|
|
|
PNS_DBG( Dbg(), Message, wxString::Format( wxT( "via force [%d %d]\n" ), aForce.x, aForce.y ) );
|
|
|
|
// nothing to do...
|
|
if ( aForce.x == 0 && aForce.y == 0 )
|
|
return SH_OK;
|
|
|
|
if( !jt )
|
|
{
|
|
PNS_DBG( Dbg(), Message,
|
|
wxString::Format( wxT( "weird, can't find the center-of-via joint\n" ) ) );
|
|
return SH_INCOMPLETE;
|
|
}
|
|
|
|
if( Settings().ShoveVias() == false || aVia->IsLocked() )
|
|
return SH_TRY_WALK;
|
|
|
|
if( jt->IsLocked() )
|
|
return SH_INCOMPLETE;
|
|
|
|
// make sure pushed via does not overlap with any existing joint
|
|
while( true )
|
|
{
|
|
JOINT* jt_next = m_currentNode->FindJoint( p0_pushed, aVia );
|
|
|
|
if( !jt_next )
|
|
break;
|
|
|
|
p0_pushed += aForce.Resize( 2 );
|
|
}
|
|
|
|
std::unique_ptr<VIA> pushedVia = Clone( *aVia );
|
|
pushedVia->SetPos( p0_pushed );
|
|
pushedVia->Mark( aVia->Marker() );
|
|
|
|
for( ITEM* item : jt->LinkList() )
|
|
{
|
|
if( item->OfKind( ITEM::SEGMENT_T | ITEM::ARC_T ) )
|
|
{
|
|
LINKED_ITEM* li = static_cast<LINKED_ITEM*>( item );
|
|
LINE_PAIR lp;
|
|
int segIndex;
|
|
|
|
lp.first = assembleLine( li, &segIndex );
|
|
|
|
if( lp.first.HasLockedSegments() )
|
|
return SH_TRY_WALK;
|
|
|
|
assert( segIndex == 0 || ( segIndex == ( lp.first.SegmentCount() - 1 ) ) );
|
|
|
|
if( segIndex == 0 )
|
|
lp.first.Reverse();
|
|
|
|
lp.second = lp.first;
|
|
lp.second.ClearLinks();
|
|
lp.second.DragCorner( p0_pushed, lp.second.CLine().Find( p0 ) );
|
|
lp.second.AppendVia( *pushedVia );
|
|
draggedLines.push_back( lp );
|
|
}
|
|
}
|
|
|
|
pushedVia->SetRank( aCurrentRank - 1 );
|
|
PNS_DBG( Dbg(), Message, wxString::Format("PushViaRank %d\n", pushedVia->Rank() ) );
|
|
|
|
if( aVia->Marker() & MK_HEAD ) // push
|
|
{
|
|
m_draggedVia = pushedVia.get();
|
|
}
|
|
else
|
|
{ // shove
|
|
if( jt->IsStitchingVia() )
|
|
pushLineStack( LINE( *pushedVia ) );
|
|
}
|
|
|
|
PNS_DBG( Dbg(), AddPoint, aVia->Pos(), LIGHTGREEN, 100000, "via-pre" );
|
|
PNS_DBG( Dbg(), AddPoint, pushedVia->Pos(), LIGHTRED, 100000, "via-post" );
|
|
|
|
replaceItems( aVia, std::move( pushedVia ) );
|
|
|
|
for( LINE_PAIR lp : draggedLines )
|
|
{
|
|
if( lp.first.Marker() & MK_HEAD )
|
|
{
|
|
lp.second.Mark( MK_HEAD );
|
|
|
|
if( m_multiLineMode )
|
|
return SH_INCOMPLETE;
|
|
|
|
m_newHead = lp.second;
|
|
}
|
|
|
|
unwindLineStack( &lp.first );
|
|
|
|
if( lp.second.SegmentCount() )
|
|
{
|
|
replaceLine( lp.first, lp.second );
|
|
lp.second.SetRank( aCurrentRank - 1 );
|
|
|
|
|
|
PNS_DBG( Dbg(), Message, wxString::Format("PushViaF %p %d\n", &lp.second, lp.second.SegmentCount() ) );
|
|
|
|
if( !pushLineStack( lp.second, true ) )
|
|
return SH_INCOMPLETE;
|
|
}
|
|
else
|
|
{
|
|
m_currentNode->Remove( lp.first );
|
|
}
|
|
|
|
PNS_DBG( Dbg(), AddItem, &lp.first, LIGHTGREEN, 10000, wxT( "fan-pre" ) );
|
|
PNS_DBG( Dbg(), AddItem, &lp.second, LIGHTRED, 10000, wxT( "fan-post" ) );
|
|
}
|
|
|
|
return SH_OK;
|
|
}
|
|
|
|
|
|
/*
|
|
* Calculate the minimum translation vector required to resolve a collision with a via and
|
|
* shove the via by that distance.
|
|
*/
|
|
SHOVE::SHOVE_STATUS SHOVE::onCollidingVia( ITEM* aCurrent, VIA* aObstacleVia, OBSTACLE& aObstacleInfo )
|
|
{
|
|
assert( aObstacleVia );
|
|
|
|
int clearance = getClearance( aCurrent, aObstacleVia );
|
|
VECTOR2I mtv;
|
|
int rank = -1;
|
|
|
|
bool lineCollision = false;
|
|
bool viaCollision = false;
|
|
VECTOR2I mtvLine, mtvVia;
|
|
|
|
PNS_DBG( Dbg(), BeginGroup, "push-via-by-line", 1 );
|
|
|
|
if( aCurrent->OfKind( ITEM::LINE_T ) )
|
|
{
|
|
VIA vtmp ( *aObstacleVia );
|
|
|
|
if( aObstacleInfo.m_maxFanoutWidth > 0 && aObstacleInfo.m_maxFanoutWidth > aObstacleVia->Diameter() )
|
|
{
|
|
vtmp.SetDiameter( aObstacleInfo.m_maxFanoutWidth );
|
|
}
|
|
|
|
LINE* currentLine = (LINE*) aCurrent;
|
|
|
|
PNS_DBG( Dbg(), AddItem, currentLine, LIGHTRED, 10000, wxT( "current-line" ) );
|
|
|
|
if( currentLine->EndsWithVia() )
|
|
{
|
|
PNS_DBG( Dbg(), AddItem, ¤tLine->Via(), LIGHTRED, 10000, wxT( "current-line-via" ) );
|
|
}
|
|
|
|
PNS_DBG( Dbg(), AddItem, &vtmp, LIGHTRED, 100000, wxT( "orig-via" ) );
|
|
|
|
lineCollision = vtmp.Shape()->Collide( currentLine->Shape(),
|
|
clearance + currentLine->Width() / 2,
|
|
&mtvLine );
|
|
|
|
// Check the via if present. Via takes priority.
|
|
if( currentLine->EndsWithVia() )
|
|
{
|
|
const VIA& currentVia = currentLine->Via();
|
|
int viaClearance = getClearance( ¤tVia, &vtmp );
|
|
|
|
viaCollision = currentVia.Shape()->Collide( vtmp.Shape(), viaClearance, &mtvVia );
|
|
}
|
|
}
|
|
else if( aCurrent->OfKind( ITEM::SOLID_T ) )
|
|
{
|
|
// TODO: is this possible at all? We don't shove solids.
|
|
return SH_INCOMPLETE;
|
|
}
|
|
|
|
// fixme: we may have a sign issue in Collide(CIRCLE, LINE_CHAIN)
|
|
if( viaCollision )
|
|
mtv = -mtvVia;
|
|
else if ( lineCollision )
|
|
mtv = -mtvLine;
|
|
else
|
|
mtv = VECTOR2I(0, 0);
|
|
|
|
SHOVE::SHOVE_STATUS st = pushOrShoveVia( aObstacleVia, -mtv, aCurrent->Rank() );
|
|
PNS_DBG(Dbg(), Message, wxString::Format("push-or-shove-via st %d", st ) );
|
|
|
|
PNS_DBGN( Dbg(), EndGroup );
|
|
|
|
return st;
|
|
}
|
|
|
|
|
|
/*
|
|
* TODO describe....
|
|
*/
|
|
SHOVE::SHOVE_STATUS SHOVE::onReverseCollidingVia( LINE& aCurrent, VIA* aObstacleVia )
|
|
{
|
|
int n = 0;
|
|
LINE cur( aCurrent );
|
|
cur.ClearLinks();
|
|
|
|
JOINT* jt = m_currentNode->FindJoint( aObstacleVia->Pos(), aObstacleVia );
|
|
LINE shoved( aCurrent );
|
|
shoved.ClearLinks();
|
|
|
|
cur.RemoveVia();
|
|
unwindLineStack( &aCurrent );
|
|
|
|
for( ITEM* item : jt->LinkList() )
|
|
{
|
|
if( item->OfKind( ITEM::SEGMENT_T | ITEM::ARC_T ) && item->LayersOverlap( &aCurrent ) )
|
|
{
|
|
LINKED_ITEM* li = static_cast<LINKED_ITEM*>( item );
|
|
LINE head = assembleLine( li );
|
|
|
|
head.AppendVia( *aObstacleVia );
|
|
|
|
SHOVE_STATUS st = ShoveObstacleLine( head, cur, shoved );
|
|
|
|
if( st != SH_OK )
|
|
{
|
|
#if 0
|
|
m_logger.NewGroup( "on-reverse-via-fail-shove", m_iter );
|
|
m_logger.Log( aObstacleVia, 0, "the-via" );
|
|
m_logger.Log( &aCurrent, 1, "current-line" );
|
|
m_logger.Log( &shoved, 3, "shoved-line" );
|
|
#endif
|
|
|
|
return st;
|
|
}
|
|
|
|
cur.SetShape( shoved.CLine() );
|
|
n++;
|
|
}
|
|
}
|
|
|
|
if( !n )
|
|
{
|
|
#if 0
|
|
m_logger.NewGroup( "on-reverse-via-fail-lonevia", m_iter );
|
|
m_logger.Log( aObstacleVia, 0, "the-via" );
|
|
m_logger.Log( &aCurrent, 1, "current-line" );
|
|
#endif
|
|
|
|
LINE head( aCurrent );
|
|
head.Line().Clear();
|
|
head.AppendVia( *aObstacleVia );
|
|
head.ClearLinks();
|
|
|
|
SHOVE_STATUS st = ShoveObstacleLine( head, aCurrent, shoved );
|
|
|
|
if( st != SH_OK )
|
|
return st;
|
|
|
|
cur.SetShape( shoved.CLine() );
|
|
}
|
|
|
|
if( aCurrent.EndsWithVia() )
|
|
shoved.AppendVia( aCurrent.Via() );
|
|
|
|
#if 0
|
|
m_logger.NewGroup( "on-reverse-via", m_iter );
|
|
m_logger.Log( aObstacleVia, 0, "the-via" );
|
|
m_logger.Log( &aCurrent, 1, "current-line" );
|
|
m_logger.Log( &shoved, 3, "shoved-line" );
|
|
#endif
|
|
|
|
PNS_DBG( Dbg(), AddItem, aObstacleVia, YELLOW, 0, wxT( "rr-the-via" ) );
|
|
PNS_DBG( Dbg(), AddItem, &aCurrent, BLUE, 0, wxT( "rr-current-line" ) );
|
|
PNS_DBG( Dbg(), AddItem, &shoved, GREEN, 0, wxT( "rr-shoved-line" ) );
|
|
|
|
int currentRank = aCurrent.Rank();
|
|
replaceLine( aCurrent, shoved );
|
|
|
|
if( !pushLineStack( shoved ) )
|
|
return SH_INCOMPLETE;
|
|
|
|
shoved.SetRank( currentRank );
|
|
|
|
return SH_OK;
|
|
}
|
|
|
|
|
|
void SHOVE::unwindLineStack( LINKED_ITEM* aSeg )
|
|
{
|
|
int d = 0;
|
|
|
|
for( std::vector<LINE>::iterator i = m_lineStack.begin(); i != m_lineStack.end() ; )
|
|
{
|
|
if( i->ContainsLink( aSeg ) )
|
|
{
|
|
PNS_DBG(Dbg(), Message, wxString::Format("Unwind lc %d (depth %d/%d)", i->SegmentCount(), d, (int)m_lineStack.size() ) );
|
|
i = m_lineStack.erase( i );
|
|
}
|
|
else
|
|
i++;
|
|
|
|
d++;
|
|
}
|
|
|
|
for( std::vector<LINE>::iterator i = m_optimizerQueue.begin(); i != m_optimizerQueue.end() ; )
|
|
{
|
|
if( i->ContainsLink( aSeg ) )
|
|
i = m_optimizerQueue.erase( i );
|
|
else
|
|
i++;
|
|
}
|
|
}
|
|
|
|
|
|
void SHOVE::unwindLineStack( ITEM* aItem )
|
|
{
|
|
if( aItem->OfKind( ITEM::SEGMENT_T | ITEM::ARC_T ) )
|
|
unwindLineStack( static_cast<LINKED_ITEM*>( aItem ) );
|
|
else if( aItem->OfKind( ITEM::LINE_T ) )
|
|
{
|
|
LINE* l = static_cast<LINE*>( aItem );
|
|
|
|
for( LINKED_ITEM* seg : l->Links() )
|
|
unwindLineStack( seg );
|
|
}
|
|
}
|
|
|
|
|
|
bool SHOVE::pushLineStack( const LINE& aL, bool aKeepCurrentOnTop )
|
|
{
|
|
if( !aL.IsLinkedChecked() && aL.SegmentCount() != 0 )
|
|
{
|
|
PNS_DBG( Dbg(), AddItem, &aL, BLUE, 10000, wxT( "push line stack failed" ) );
|
|
|
|
return false;
|
|
}
|
|
|
|
if( aKeepCurrentOnTop && m_lineStack.size() > 0)
|
|
{
|
|
m_lineStack.insert( m_lineStack.begin() + m_lineStack.size() - 1, aL );
|
|
}
|
|
else
|
|
{
|
|
m_lineStack.push_back( aL );
|
|
}
|
|
|
|
m_optimizerQueue.push_back( aL );
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
void SHOVE::popLineStack( )
|
|
{
|
|
LINE& l = m_lineStack.back();
|
|
|
|
for( std::vector<LINE>::iterator i = m_optimizerQueue.begin(); i != m_optimizerQueue.end(); )
|
|
{
|
|
bool found = false;
|
|
|
|
for( LINKED_ITEM* s : l.Links() )
|
|
{
|
|
if( i->ContainsLink( s ) )
|
|
{
|
|
i = m_optimizerQueue.erase( i );
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if( !found )
|
|
i++;
|
|
}
|
|
|
|
m_lineStack.pop_back();
|
|
}
|
|
|
|
|
|
bool SHOVE::fixupViaCollisions( const LINE* aCurrent, OBSTACLE& obs )
|
|
{
|
|
// if the current obstacle is a via, consider also the lines connected to it
|
|
// if their widths are larger or equal than the via diameter, the shove algorithm
|
|
// will very likely fail in the subsequent iterations (as our base assumption is track
|
|
// ends can never move on their own, only dragged by force-propagated vias
|
|
|
|
// our colliding item is a via: just find the max width of the traces connected to it
|
|
if( obs.m_item->OfKind( ITEM::VIA_T ) )
|
|
{
|
|
VIA* v = static_cast<VIA*>( obs.m_item );
|
|
int maxw = 0;
|
|
JOINT* jv = m_currentNode->FindJoint( v->Pos(), v );
|
|
|
|
for( auto link : jv->Links() )
|
|
{
|
|
if( link.item->OfKind( ITEM::SEGMENT_T ) ) // consider segments ...
|
|
{
|
|
auto seg = static_cast<SEGMENT*>( link.item );
|
|
maxw = std::max( seg->Width(), maxw );
|
|
}
|
|
else if( link.item->OfKind( ITEM::ARC_T ) ) // ... or arcs
|
|
{
|
|
auto arc = static_cast<ARC*>( link.item );
|
|
maxw = std::max( arc->Width(), maxw );
|
|
}
|
|
}
|
|
|
|
obs.m_maxFanoutWidth = 0;
|
|
|
|
if( maxw > 0 && maxw >= v->Diameter() )
|
|
{
|
|
obs.m_maxFanoutWidth = maxw + 1;
|
|
PNS_DBG( Dbg(), Message,
|
|
wxString::Format( "Fixup via: new-w %d via-w %d", maxw, v->Diameter() ) );
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
// our colliding item is a segment. check if it has a via on either of the ends.
|
|
if( !obs.m_item->OfKind( ITEM::SEGMENT_T ) )
|
|
return false;
|
|
|
|
auto s = static_cast<SEGMENT*>( obs.m_item );
|
|
|
|
JOINT* ja = m_currentNode->FindJoint( s->Seg().A, s );
|
|
JOINT* jb = m_currentNode->FindJoint( s->Seg().B, s );
|
|
|
|
VIA* vias[] = { ja->Via(), jb->Via() };
|
|
|
|
for( int i = 0; i < 2; i++ )
|
|
{
|
|
VIA* v = vias[i];
|
|
|
|
// via diameter is larger than the segment width - cool, the force propagation algo
|
|
// will be able to deal with it, no need to intervene
|
|
if( !v || v->Diameter() > s->Width() )
|
|
continue;
|
|
|
|
VIA vtest( *v );
|
|
vtest.SetDiameter( s->Width() );
|
|
|
|
// enlarge the via to the width of the segment
|
|
if( vtest.Collide( aCurrent, m_currentNode ) )
|
|
{
|
|
// if colliding, drop the segment in the shove iteration loop and force-propagate the via instead
|
|
obs.m_item = v;
|
|
obs.m_maxFanoutWidth = s->Width() + 1;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Resolve the next collision.
|
|
*/
|
|
SHOVE::SHOVE_STATUS SHOVE::shoveIteration( int aIter )
|
|
{
|
|
LINE currentLine = m_lineStack.back();
|
|
NODE::OPT_OBSTACLE nearest;
|
|
SHOVE_STATUS st = SH_NULL;
|
|
|
|
if( Dbg() )
|
|
{
|
|
Dbg()->SetIteration( aIter );
|
|
}
|
|
|
|
PNS_DBG( Dbg(), AddItem, ¤tLine, RED, currentLine.Width(), wxString::Format( "current-coll-chk rank %d", currentLine.Rank() ) );
|
|
|
|
for( ITEM::PnsKind search_order : { ITEM::SOLID_T, ITEM::VIA_T, ITEM::SEGMENT_T } )
|
|
{
|
|
nearest = m_currentNode->NearestObstacle( ¤tLine, search_order );
|
|
|
|
if( nearest )
|
|
{
|
|
PNS_DBG( Dbg(), Message,
|
|
wxString::Format( wxT( "nearest %p %s rank %d" ), nearest->m_item,
|
|
nearest->m_item->KindStr(), nearest->m_item->Rank() ) );
|
|
|
|
PNS_DBG( Dbg(), AddShape, nearest->m_item->Shape(), YELLOW, 10000, wxT("nearest") );
|
|
}
|
|
|
|
if( nearest )
|
|
break;
|
|
}
|
|
|
|
if( !nearest )
|
|
{
|
|
m_lineStack.pop_back();
|
|
PNS_DBG( Dbg(), Message, "no-nearest-item ");
|
|
return SH_OK;
|
|
}
|
|
|
|
bool viaFixup = fixupViaCollisions( ¤tLine, *nearest );
|
|
|
|
PNS_DBG( Dbg(), Message, wxString::Format( "iter %d: VF %d", aIter, viaFixup?1:0 ) );
|
|
|
|
|
|
ITEM* ni = nearest->m_item;
|
|
|
|
unwindLineStack( ni );
|
|
|
|
if( !ni->OfKind( ITEM::SOLID_T ) && ni->Rank() >= 0 && ni->Rank() > currentLine.Rank() )
|
|
{
|
|
// Collision with a higher-ranking object (ie: one that we've already shoved)
|
|
//
|
|
switch( ni->Kind() )
|
|
{
|
|
case ITEM::VIA_T:
|
|
{
|
|
PNS_DBG( Dbg(), BeginGroup, wxString::Format( "iter %d: reverse-collide-via", aIter ).ToStdString(), 0 );
|
|
|
|
if( currentLine.EndsWithVia() && nearest->m_item->Collide( ¤tLine.Via(), m_currentNode ) )
|
|
{
|
|
st = SH_INCOMPLETE;
|
|
}
|
|
else
|
|
{
|
|
st = onReverseCollidingVia( currentLine, (VIA*) ni );
|
|
}
|
|
|
|
PNS_DBGN( Dbg(), EndGroup );
|
|
|
|
break;
|
|
}
|
|
|
|
case ITEM::SEGMENT_T:
|
|
{
|
|
PNS_DBG( Dbg(), BeginGroup, wxString::Format( "iter %d: reverse-collide-segment ",
|
|
aIter ).ToStdString(), 0 );
|
|
LINE revLine = assembleLine( static_cast<SEGMENT*>( ni ) );
|
|
|
|
popLineStack();
|
|
st = onCollidingLine( revLine, currentLine );
|
|
|
|
|
|
if( !pushLineStack( revLine ) )
|
|
{
|
|
return SH_INCOMPLETE;
|
|
}
|
|
|
|
|
|
PNS_DBGN( Dbg(), EndGroup );
|
|
|
|
break;
|
|
}
|
|
|
|
case ITEM::ARC_T:
|
|
{
|
|
//TODO(snh): Handle Arc shove separate from track
|
|
PNS_DBG( Dbg(), BeginGroup, wxString::Format( "iter %d: reverse-collide-arc ", aIter ).ToStdString(), 0 );
|
|
LINE revLine = assembleLine( static_cast<ARC*>( ni ) );
|
|
|
|
popLineStack();
|
|
st = onCollidingLine( revLine, currentLine );
|
|
|
|
PNS_DBGN( Dbg(), EndGroup );
|
|
|
|
if( !pushLineStack( revLine ) )
|
|
return SH_INCOMPLETE;
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
assert( false );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Collision with a lower-ranking object or a solid
|
|
//
|
|
switch( ni->Kind() )
|
|
{
|
|
case ITEM::SEGMENT_T:
|
|
PNS_DBG( Dbg(), BeginGroup, wxString::Format( "iter %d: collide-segment ", aIter ), 0 );
|
|
|
|
st = onCollidingSegment( currentLine, (SEGMENT*) ni );
|
|
|
|
if( st == SH_TRY_WALK )
|
|
st = onCollidingSolid( currentLine, ni, *nearest );
|
|
|
|
PNS_DBGN( Dbg(), EndGroup );
|
|
|
|
break;
|
|
|
|
//TODO(snh): Customize Arc collide
|
|
case ITEM::ARC_T:
|
|
PNS_DBG( Dbg(), BeginGroup, wxString::Format( "iter %d: collide-arc ", aIter ), 0 );
|
|
|
|
st = onCollidingArc( currentLine, static_cast<ARC*>( ni ) );
|
|
|
|
if( st == SH_TRY_WALK )
|
|
st = onCollidingSolid( currentLine, ni, *nearest );
|
|
|
|
PNS_DBGN( Dbg(), EndGroup );
|
|
|
|
break;
|
|
|
|
case ITEM::VIA_T:
|
|
PNS_DBG( Dbg(), BeginGroup, wxString::Format( "iter %d: collide-via (fixup: %d)", aIter, 0 ), 0 );
|
|
st = onCollidingVia( ¤tLine, (VIA*) ni, *nearest );
|
|
|
|
if( st == SH_TRY_WALK )
|
|
st = onCollidingSolid( currentLine, ni, *nearest );
|
|
|
|
PNS_DBGN( Dbg(), EndGroup );
|
|
|
|
break;
|
|
|
|
case ITEM::SOLID_T:
|
|
PNS_DBG( Dbg(), BeginGroup, wxString::Format( "iter %d: walk-solid ", aIter ), 0);
|
|
st = onCollidingSolid( currentLine, (SOLID*) ni, *nearest );
|
|
|
|
PNS_DBGN( Dbg(), EndGroup );
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return st;
|
|
}
|
|
|
|
|
|
/*
|
|
* Resolve collisions.
|
|
* Each iteration pushes the next colliding object out of the way. Iterations are continued as
|
|
* long as they propagate further collisions, or until the iteration timeout or max iteration
|
|
* count is reached.
|
|
*/
|
|
SHOVE::SHOVE_STATUS SHOVE::shoveMainLoop()
|
|
{
|
|
SHOVE_STATUS st = SH_OK;
|
|
|
|
m_affectedArea = OPT_BOX2I();
|
|
|
|
PNS_DBG( Dbg(), Message, wxString::Format( "ShoveStart [root: %d jts, current: %d jts]",
|
|
m_root->JointCount(),
|
|
m_currentNode->JointCount() ) );
|
|
|
|
int iterLimit = Settings().ShoveIterationLimit();
|
|
TIME_LIMIT timeLimit = Settings().ShoveTimeLimit();
|
|
|
|
m_iter = 0;
|
|
|
|
timeLimit.Restart();
|
|
|
|
if( m_lineStack.empty() && m_draggedVia )
|
|
{
|
|
// If we're shoving a free via then push a proxy LINE (with the via on the end) onto
|
|
// the stack.
|
|
pushLineStack( LINE( *m_draggedVia ) );
|
|
}
|
|
|
|
while( !m_lineStack.empty() )
|
|
{
|
|
PNS_DBG( Dbg(), Message, wxString::Format( "iter %d: node %p stack %d ", m_iter,
|
|
m_currentNode, (int) m_lineStack.size() ) );
|
|
|
|
st = shoveIteration( m_iter );
|
|
|
|
m_iter++;
|
|
|
|
if( st == SH_INCOMPLETE || timeLimit.Expired() || m_iter >= iterLimit )
|
|
{
|
|
PNS_DBG( Dbg(), Message, wxString::Format( "Fail [time limit expired: %d iter %d iter limit %d",
|
|
timeLimit.Expired()?1:0, m_iter, iterLimit ) );
|
|
st = SH_INCOMPLETE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return st;
|
|
}
|
|
|
|
|
|
OPT_BOX2I SHOVE::totalAffectedArea() const
|
|
{
|
|
OPT_BOX2I area;
|
|
|
|
if( !m_nodeStack.empty() )
|
|
area = m_nodeStack.back().m_affectedArea;
|
|
|
|
if( area && m_affectedArea)
|
|
area->Merge( *m_affectedArea );
|
|
else if( !area )
|
|
area = m_affectedArea;
|
|
|
|
return area;
|
|
}
|
|
|
|
|
|
SHOVE::SHOVE_STATUS SHOVE::ShoveLines( const LINE& aCurrentHead )
|
|
{
|
|
SHOVE_STATUS st = SH_OK;
|
|
|
|
m_multiLineMode = false;
|
|
|
|
PNS_DBG( Dbg(), Message,
|
|
wxString::Format( "Shove start, lc = %d", aCurrentHead.SegmentCount() ) )
|
|
|
|
// empty head? nothing to shove...
|
|
if( !aCurrentHead.SegmentCount() && !aCurrentHead.EndsWithVia() )
|
|
return SH_INCOMPLETE;
|
|
|
|
LINE head( aCurrentHead );
|
|
head.ClearLinks();
|
|
|
|
m_lineStack.clear();
|
|
m_optimizerQueue.clear();
|
|
m_newHead = OPT_LINE();
|
|
|
|
#if 0
|
|
m_logger.Clear();
|
|
#endif
|
|
|
|
// Pop NODEs containing previous shoves which are no longer necessary
|
|
//
|
|
ITEM_SET headSet;
|
|
headSet.Add( aCurrentHead );
|
|
|
|
VIA_HANDLE dummyVia;
|
|
|
|
NODE* parent = reduceSpringback( headSet, dummyVia );
|
|
|
|
// Create a new NODE to store this version of the world
|
|
m_currentNode = parent->Branch();
|
|
m_currentNode->ClearRanks();
|
|
m_currentNode->Add( head );
|
|
|
|
m_currentNode->LockJoint( head.CPoint(0), &head, true );
|
|
|
|
if( !head.EndsWithVia() )
|
|
m_currentNode->LockJoint( head.CPoint( -1 ), &head, true );
|
|
|
|
head.Mark( MK_HEAD );
|
|
head.SetRank( 100000 );
|
|
|
|
PNS_DBG( Dbg(), AddItem, &head, CYAN, 0, wxT( "head, after shove" ) );
|
|
|
|
if( head.EndsWithVia() )
|
|
{
|
|
std::unique_ptr< VIA >headVia = Clone( head.Via() );
|
|
headVia->Mark( MK_HEAD );
|
|
headVia->SetRank( 100000 );
|
|
m_currentNode->Add( std::move( headVia ) );
|
|
}
|
|
|
|
if( !pushLineStack( head ) )
|
|
{
|
|
delete m_currentNode;
|
|
m_currentNode = parent;
|
|
|
|
return SH_INCOMPLETE;
|
|
}
|
|
|
|
st = shoveMainLoop();
|
|
|
|
if( st == SH_OK )
|
|
{
|
|
runOptimizer( m_currentNode );
|
|
|
|
if( m_newHead )
|
|
st = m_currentNode->CheckColliding( &( *m_newHead ) ) ? SH_INCOMPLETE : SH_HEAD_MODIFIED;
|
|
else
|
|
st = m_currentNode->CheckColliding( &head ) ? SH_INCOMPLETE : SH_OK;
|
|
}
|
|
|
|
m_currentNode->RemoveByMarker( MK_HEAD );
|
|
|
|
PNS_DBG( Dbg(), Message, wxString::Format( "Shove status : %s after %d iterations",
|
|
( ( st == SH_OK || st == SH_HEAD_MODIFIED ) ? "OK" : "FAILURE"), m_iter ) );
|
|
|
|
if( st == SH_OK || st == SH_HEAD_MODIFIED )
|
|
{
|
|
pushSpringback( m_currentNode, m_affectedArea, nullptr );
|
|
}
|
|
else
|
|
{
|
|
delete m_currentNode;
|
|
|
|
m_currentNode = parent;
|
|
m_newHead = OPT_LINE();
|
|
}
|
|
|
|
if(m_newHead)
|
|
m_newHead->Unmark();
|
|
|
|
if( m_newHead && head.EndsWithVia() )
|
|
{
|
|
VIA v = head.Via();
|
|
v.SetPos( m_newHead->CPoint( -1 ) );
|
|
m_newHead->AppendVia(v);
|
|
}
|
|
|
|
return st;
|
|
}
|
|
|
|
|
|
SHOVE::SHOVE_STATUS SHOVE::ShoveMultiLines( const ITEM_SET& aHeadSet )
|
|
{
|
|
SHOVE_STATUS st = SH_OK;
|
|
|
|
m_multiLineMode = true;
|
|
|
|
ITEM_SET headSet;
|
|
|
|
for( const ITEM* item : aHeadSet.CItems() )
|
|
{
|
|
const LINE* headOrig = static_cast<const LINE*>( item );
|
|
|
|
// empty head? nothing to shove...
|
|
if( !headOrig->SegmentCount() )
|
|
return SH_INCOMPLETE;
|
|
|
|
headSet.Add( *headOrig );
|
|
}
|
|
|
|
m_lineStack.clear();
|
|
m_optimizerQueue.clear();
|
|
|
|
#if 0
|
|
m_logger.Clear();
|
|
#endif
|
|
|
|
VIA_HANDLE dummyVia;
|
|
|
|
NODE* parent = reduceSpringback( headSet, dummyVia );
|
|
|
|
m_currentNode = parent->Branch();
|
|
m_currentNode->ClearRanks();
|
|
int n = 0;
|
|
|
|
for( const ITEM* item : aHeadSet.CItems() )
|
|
{
|
|
const LINE* headOrig = static_cast<const LINE*>( item );
|
|
LINE head( *headOrig );
|
|
head.ClearLinks();
|
|
|
|
m_currentNode->Add( head );
|
|
|
|
head.Mark( MK_HEAD );
|
|
head.SetRank( 100000 );
|
|
n++;
|
|
|
|
if( !pushLineStack( head ) )
|
|
return SH_INCOMPLETE;
|
|
|
|
if( head.EndsWithVia() )
|
|
{
|
|
std::unique_ptr< VIA > headVia = Clone( head.Via() );
|
|
headVia->Mark( MK_HEAD );
|
|
headVia->SetRank( 100000 );
|
|
m_currentNode->Add( std::move( headVia ) );
|
|
}
|
|
}
|
|
|
|
st = shoveMainLoop();
|
|
|
|
if( st == SH_OK )
|
|
runOptimizer( m_currentNode );
|
|
|
|
m_currentNode->RemoveByMarker( MK_HEAD );
|
|
|
|
PNS_DBG( Dbg(), Message, wxString::Format( "Shove status : %s after %d iterations",
|
|
( st == SH_OK ? "OK" : "FAILURE"), m_iter ) );
|
|
|
|
if( st == SH_OK )
|
|
{
|
|
pushSpringback( m_currentNode, m_affectedArea, nullptr );
|
|
}
|
|
else
|
|
{
|
|
delete m_currentNode;
|
|
m_currentNode = parent;
|
|
}
|
|
|
|
return st;
|
|
}
|
|
|
|
|
|
static VIA* findViaByHandle ( NODE *aNode, const VIA_HANDLE& handle )
|
|
{
|
|
JOINT* jt = aNode->FindJoint( handle.pos, handle.layers.Start(), handle.net );
|
|
|
|
if( !jt )
|
|
return nullptr;
|
|
|
|
for( ITEM* item : jt->LinkList() )
|
|
{
|
|
if( item->OfKind( ITEM::VIA_T ) )
|
|
{
|
|
if( item->Net() == handle.net && item->Layers().Overlaps(handle.layers) )
|
|
return static_cast<VIA*>( item );
|
|
}
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
|
|
SHOVE::SHOVE_STATUS SHOVE::ShoveDraggingVia( const VIA_HANDLE aOldVia, const VECTOR2I& aWhere,
|
|
VIA_HANDLE& aNewVia )
|
|
{
|
|
SHOVE_STATUS st = SH_OK;
|
|
|
|
m_lineStack.clear();
|
|
m_optimizerQueue.clear();
|
|
m_newHead = OPT_LINE();
|
|
m_draggedVia = nullptr;
|
|
|
|
VIA* viaToDrag = findViaByHandle( m_currentNode, aOldVia );
|
|
|
|
if( !viaToDrag )
|
|
return SH_INCOMPLETE;
|
|
|
|
// Pop NODEs containing previous shoves which are no longer necessary
|
|
ITEM_SET headSet;
|
|
|
|
VIA headVia ( *viaToDrag );
|
|
headVia.SetPos( aWhere );
|
|
headSet.Add( headVia );
|
|
VIA_HANDLE prevViaHandle;
|
|
NODE* parent = reduceSpringback( headSet, prevViaHandle );
|
|
|
|
if( prevViaHandle.valid )
|
|
{
|
|
aNewVia = prevViaHandle;
|
|
viaToDrag = findViaByHandle( parent, prevViaHandle );
|
|
}
|
|
|
|
// Create a new NODE to store this version of the world
|
|
m_currentNode = parent->Branch();
|
|
m_currentNode->ClearRanks();
|
|
|
|
viaToDrag->Mark( MK_HEAD );
|
|
viaToDrag->SetRank( 100000 );
|
|
|
|
// Push the via to its new location
|
|
st = pushOrShoveVia( viaToDrag, ( aWhere - viaToDrag->Pos() ), 0 );
|
|
|
|
// Shove any colliding objects out of the way
|
|
if( st == SH_OK )
|
|
st = shoveMainLoop();
|
|
|
|
if( st == SH_OK )
|
|
runOptimizer( m_currentNode );
|
|
|
|
if( st == SH_OK || st == SH_HEAD_MODIFIED )
|
|
{
|
|
wxLogTrace( "PNS","setNewV %p", m_draggedVia );
|
|
|
|
if (!m_draggedVia)
|
|
m_draggedVia = viaToDrag;
|
|
|
|
aNewVia = m_draggedVia->MakeHandle();
|
|
|
|
pushSpringback( m_currentNode, m_affectedArea, viaToDrag );
|
|
}
|
|
else
|
|
{
|
|
delete m_currentNode;
|
|
m_currentNode = parent;
|
|
}
|
|
|
|
return st;
|
|
}
|
|
|
|
|
|
LINE* SHOVE::findRootLine( LINE *aLine )
|
|
{
|
|
for( auto link : aLine->Links() )
|
|
{
|
|
if( auto seg = dyn_cast<SEGMENT*>( link ) )
|
|
{
|
|
auto it = m_rootLineHistory.find( seg );
|
|
|
|
if( it != m_rootLineHistory.end() )
|
|
return it->second;
|
|
}
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
|
|
void SHOVE::runOptimizer( NODE* aNode )
|
|
{
|
|
OPTIMIZER optimizer( aNode );
|
|
int optFlags = 0;
|
|
int n_passes = 0;
|
|
|
|
PNS_OPTIMIZATION_EFFORT effort = Settings().OptimizerEffort();
|
|
|
|
OPT_BOX2I area = totalAffectedArea();
|
|
|
|
int maxWidth = 0;
|
|
|
|
for( LINE& line : m_optimizerQueue )
|
|
maxWidth = std::max( line.Width(), maxWidth );
|
|
|
|
if( area )
|
|
{
|
|
area->Inflate( maxWidth );
|
|
area = area->Intersect( VisibleViewArea() );
|
|
}
|
|
|
|
switch( effort )
|
|
{
|
|
case OE_LOW:
|
|
optFlags |= OPTIMIZER::MERGE_OBTUSE;
|
|
n_passes = 1;
|
|
break;
|
|
|
|
case OE_MEDIUM:
|
|
optFlags |= OPTIMIZER::MERGE_SEGMENTS;
|
|
|
|
n_passes = 2;
|
|
break;
|
|
|
|
case OE_FULL:
|
|
optFlags = OPTIMIZER::MERGE_SEGMENTS;
|
|
n_passes = 2;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
optFlags |= OPTIMIZER::LIMIT_CORNER_COUNT;
|
|
|
|
if( area )
|
|
{
|
|
SHAPE_RECT r( *area );
|
|
|
|
PNS_DBG( Dbg(), AddShape, &r, BLUE, 0, wxT( "opt-area" ) );
|
|
|
|
optFlags |= OPTIMIZER::RESTRICT_AREA;
|
|
optimizer.SetRestrictArea( *area, false );
|
|
}
|
|
|
|
if( Settings().SmartPads() )
|
|
optFlags |= OPTIMIZER::SMART_PADS;
|
|
|
|
|
|
optimizer.SetEffortLevel( optFlags & ~m_optFlagDisableMask );
|
|
optimizer.SetCollisionMask( ITEM::ANY_T );
|
|
|
|
for( int pass = 0; pass < n_passes; pass++ )
|
|
{
|
|
std::reverse( m_optimizerQueue.begin(), m_optimizerQueue.end() );
|
|
|
|
PNS_DBG( Dbg(), Message, wxString::Format( wxT( "optimize %d lines, pass %d"), (int)m_optimizerQueue.size(), (int)pass ) );
|
|
|
|
for( LINE& line : m_optimizerQueue)
|
|
{
|
|
if( !( line.Marker() & MK_HEAD ) )
|
|
{
|
|
LINE optimized;
|
|
LINE* root = findRootLine( &line );
|
|
|
|
if( optimizer.Optimize( &line, &optimized, root ) )
|
|
{
|
|
PNS_DBG( Dbg(), AddShape, &line.CLine(), BLUE, 0, wxT( "shove-pre-opt" ) );
|
|
if( root )
|
|
{
|
|
PNS_DBG( Dbg(), AddItem, root, RED, 0, wxT( "shove-root-opt" ) );
|
|
}
|
|
replaceLine( line, optimized, false, aNode );
|
|
line = optimized; // keep links in the lines in the queue up to date
|
|
|
|
PNS_DBG( Dbg(), AddShape, &line.CLine(), GREEN, 0, wxT( "shove-post-opt" ) );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
NODE* SHOVE::CurrentNode()
|
|
{
|
|
return m_nodeStack.empty() ? m_root : m_nodeStack.back().m_node;
|
|
}
|
|
|
|
|
|
const LINE SHOVE::NewHead() const
|
|
{
|
|
assert( m_newHead );
|
|
|
|
return *m_newHead;
|
|
}
|
|
|
|
|
|
void SHOVE::SetInitialLine( LINE& aInitial )
|
|
{
|
|
m_root = m_root->Branch();
|
|
m_root->Remove( aInitial );
|
|
}
|
|
|
|
|
|
bool SHOVE::AddLockedSpringbackNode( NODE* aNode )
|
|
{
|
|
SPRINGBACK_TAG sp;
|
|
sp.m_node = aNode;
|
|
sp.m_locked = true;
|
|
|
|
m_nodeStack.push_back(sp);
|
|
return true;
|
|
}
|
|
|
|
|
|
bool SHOVE::RewindSpringbackTo( NODE* aNode )
|
|
{
|
|
bool found = false;
|
|
|
|
auto iter = m_nodeStack.begin();
|
|
|
|
while( iter != m_nodeStack.end() )
|
|
{
|
|
if ( iter->m_node == aNode )
|
|
{
|
|
found = true;
|
|
break;
|
|
}
|
|
|
|
iter++;
|
|
}
|
|
|
|
if( !found )
|
|
return false;
|
|
|
|
auto start = iter;
|
|
|
|
aNode->KillChildren();
|
|
m_nodeStack.erase( start, m_nodeStack.end() );
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool SHOVE::RewindToLastLockedNode()
|
|
{
|
|
if( m_nodeStack.empty() )
|
|
return false;
|
|
|
|
while( !m_nodeStack.back().m_locked && m_nodeStack.size() > 1 )
|
|
m_nodeStack.pop_back();
|
|
|
|
return m_nodeStack.back().m_locked;
|
|
}
|
|
|
|
|
|
void SHOVE::UnlockSpringbackNode( NODE* aNode )
|
|
{
|
|
auto iter = m_nodeStack.begin();
|
|
|
|
while( iter != m_nodeStack.end() )
|
|
{
|
|
if ( iter->m_node == aNode )
|
|
{
|
|
iter->m_locked = false;
|
|
break;
|
|
}
|
|
|
|
iter++;
|
|
}
|
|
}
|
|
|
|
|
|
void SHOVE::DisablePostShoveOptimizations( int aMask )
|
|
{
|
|
m_optFlagDisableMask = aMask;
|
|
}
|
|
|
|
|
|
void SHOVE::SetSpringbackDoNotTouchNode( NODE *aNode )
|
|
{
|
|
m_springbackDoNotTouchNode = aNode;
|
|
}
|
|
|
|
}
|
|
|