769 lines
20 KiB
C++
769 lines
20 KiB
C++
/*
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* This program source code file is part of KICAD, a free EDA CAD application.
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*
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* Copyright (C) 2016-2018 CERN
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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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <connectivity/connectivity_algo.h>
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#include <widgets/progress_reporter.h>
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#include <geometry/geometry_utils.h>
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#include <board_commit.h>
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#include <thread>
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#include <mutex>
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#include <algorithm>
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#include <future>
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#ifdef PROFILE
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#include <profile.h>
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#endif
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bool CN_CONNECTIVITY_ALGO::Remove( BOARD_ITEM* aItem )
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{
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markItemNetAsDirty( aItem );
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switch( aItem->Type() )
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{
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case PCB_MODULE_T:
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for( auto pad : static_cast<MODULE*>( aItem ) -> Pads() )
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{
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m_itemMap[ static_cast<BOARD_CONNECTED_ITEM*>( pad ) ].MarkItemsAsInvalid();
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m_itemMap.erase( static_cast<BOARD_CONNECTED_ITEM*>( pad ) );
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}
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m_itemList.SetDirty( true );
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break;
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case PCB_PAD_T:
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m_itemMap[ static_cast<BOARD_CONNECTED_ITEM*>( aItem ) ].MarkItemsAsInvalid();
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m_itemMap.erase( static_cast<BOARD_CONNECTED_ITEM*>( aItem ) );
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m_itemList.SetDirty( true );
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break;
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case PCB_TRACE_T:
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case PCB_ARC_T:
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m_itemMap[ static_cast<BOARD_CONNECTED_ITEM*>( aItem ) ].MarkItemsAsInvalid();
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m_itemMap.erase( static_cast<BOARD_CONNECTED_ITEM*>( aItem ) );
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m_itemList.SetDirty( true );
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break;
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case PCB_VIA_T:
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m_itemMap[ static_cast<BOARD_CONNECTED_ITEM*>( aItem ) ].MarkItemsAsInvalid();
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m_itemMap.erase( static_cast<BOARD_CONNECTED_ITEM*>( aItem ) );
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m_itemList.SetDirty( true );
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break;
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case PCB_ZONE_AREA_T:
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{
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m_itemMap[ static_cast<BOARD_CONNECTED_ITEM*>( aItem ) ].MarkItemsAsInvalid();
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m_itemMap.erase ( static_cast<BOARD_CONNECTED_ITEM*>( aItem ) );
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m_itemList.SetDirty( true );
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break;
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}
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default:
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return false;
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}
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// Once we delete an item, it may connect between lists, so mark both as potentially invalid
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m_itemList.SetHasInvalid( true );
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return true;
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}
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void CN_CONNECTIVITY_ALGO::markItemNetAsDirty( const BOARD_ITEM* aItem )
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{
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if( aItem->IsConnected() )
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{
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auto citem = static_cast<const BOARD_CONNECTED_ITEM*>( aItem );
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MarkNetAsDirty( citem->GetNetCode() );
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}
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else
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{
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if( aItem->Type() == PCB_MODULE_T )
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{
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auto mod = static_cast <const MODULE*>( aItem );
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for( auto pad : mod->Pads() )
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MarkNetAsDirty( pad->GetNetCode() );
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}
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}
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}
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bool CN_CONNECTIVITY_ALGO::Add( BOARD_ITEM* aItem )
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{
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if( !aItem->IsOnCopperLayer() )
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return false;
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markItemNetAsDirty ( aItem );
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switch( aItem->Type() )
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{
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case PCB_NETINFO_T:
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{
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MarkNetAsDirty( static_cast<NETINFO_ITEM*>( aItem )->GetNet() );
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break;
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}
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case PCB_MODULE_T:
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for( auto pad : static_cast<MODULE*>( aItem ) -> Pads() )
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{
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if( m_itemMap.find( pad ) != m_itemMap.end() )
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return false;
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add( m_itemList, pad );
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}
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break;
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case PCB_PAD_T:
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if( m_itemMap.find ( aItem ) != m_itemMap.end() )
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return false;
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add( m_itemList, static_cast<D_PAD*>( aItem ) );
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break;
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case PCB_TRACE_T:
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{
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if( m_itemMap.find( aItem ) != m_itemMap.end() )
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return false;
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add( m_itemList, static_cast<TRACK*>( aItem ) );
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break;
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}
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case PCB_ARC_T:
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{
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if( m_itemMap.find( aItem ) != m_itemMap.end() )
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return false;
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add( m_itemList, static_cast<ARC*>( aItem ) );
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break;
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}
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case PCB_VIA_T:
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if( m_itemMap.find( aItem ) != m_itemMap.end() )
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return false;
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add( m_itemList, static_cast<VIA*>( aItem ) );
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break;
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case PCB_ZONE_AREA_T:
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{
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auto zone = static_cast<ZONE_CONTAINER*>( aItem );
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if( m_itemMap.find( aItem ) != m_itemMap.end() )
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return false;
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m_itemMap[zone] = ITEM_MAP_ENTRY();
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for( PCB_LAYER_ID layer : zone->GetLayerSet().Seq() )
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for( auto zitem : m_itemList.Add( zone, layer ) )
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m_itemMap[zone].Link( zitem );
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break;
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}
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default:
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return false;
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}
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return true;
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}
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void CN_CONNECTIVITY_ALGO::searchConnections()
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{
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#ifdef CONNECTIVITY_DEBUG
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printf("Search start\n");
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#endif
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#ifdef PROFILE
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PROF_COUNTER garbage_collection( "garbage-collection" );
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#endif
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std::vector<CN_ITEM*> garbage;
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garbage.reserve( 1024 );
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m_itemList.RemoveInvalidItems( garbage );
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for( auto item : garbage )
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delete item;
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#ifdef PROFILE
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garbage_collection.Show();
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PROF_COUNTER search_basic( "search-basic" );
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#endif
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std::vector<CN_ITEM*> dirtyItems;
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std::copy_if( m_itemList.begin(), m_itemList.end(), std::back_inserter( dirtyItems ),
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[] ( CN_ITEM* aItem ) { return aItem->Dirty(); } );
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if( m_progressReporter )
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{
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m_progressReporter->SetMaxProgress( dirtyItems.size() );
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m_progressReporter->KeepRefreshing();
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}
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if( m_itemList.IsDirty() )
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{
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size_t parallelThreadCount = std::min<size_t>( std::thread::hardware_concurrency(),
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( dirtyItems.size() + 7 ) / 8 );
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std::atomic<size_t> nextItem( 0 );
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std::vector<std::future<size_t>> returns( parallelThreadCount );
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auto conn_lambda = [&nextItem, &dirtyItems]
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( CN_LIST* aItemList, PROGRESS_REPORTER* aReporter) -> size_t
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{
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for( size_t i = nextItem++; i < dirtyItems.size(); i = nextItem++ )
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{
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CN_VISITOR visitor( dirtyItems[i] );
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aItemList->FindNearby( dirtyItems[i], visitor );
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if( aReporter )
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aReporter->AdvanceProgress();
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}
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return 1;
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};
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if( parallelThreadCount <= 1 )
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conn_lambda( &m_itemList, m_progressReporter );
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else
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{
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for( size_t ii = 0; ii < parallelThreadCount; ++ii )
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returns[ii] = std::async( std::launch::async, conn_lambda,
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&m_itemList, m_progressReporter );
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for( size_t ii = 0; ii < parallelThreadCount; ++ii )
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{
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// Here we balance returns with a 100ms timeout to allow UI updating
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std::future_status status;
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do
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{
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if( m_progressReporter )
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m_progressReporter->KeepRefreshing();
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status = returns[ii].wait_for( std::chrono::milliseconds( 100 ) );
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} while( status != std::future_status::ready );
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}
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}
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if( m_progressReporter )
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m_progressReporter->KeepRefreshing();
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}
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#ifdef PROFILE
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search_basic.Show();
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#endif
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m_itemList.ClearDirtyFlags();
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#ifdef CONNECTIVITY_DEBUG
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printf("Search end\n");
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#endif
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}
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const CN_CONNECTIVITY_ALGO::CLUSTERS CN_CONNECTIVITY_ALGO::SearchClusters( CLUSTER_SEARCH_MODE aMode )
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{
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constexpr KICAD_T types[] =
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{ PCB_TRACE_T, PCB_ARC_T, PCB_PAD_T, PCB_VIA_T, PCB_ZONE_AREA_T, PCB_MODULE_T, EOT };
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constexpr KICAD_T no_zones[] =
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{ PCB_TRACE_T, PCB_ARC_T, PCB_PAD_T, PCB_VIA_T, PCB_MODULE_T, EOT };
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if( aMode == CSM_PROPAGATE )
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return SearchClusters( aMode, no_zones, -1 );
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else
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return SearchClusters( aMode, types, -1 );
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}
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const CN_CONNECTIVITY_ALGO::CLUSTERS CN_CONNECTIVITY_ALGO::SearchClusters( CLUSTER_SEARCH_MODE aMode,
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const KICAD_T aTypes[], int aSingleNet )
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{
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bool withinAnyNet = ( aMode != CSM_PROPAGATE );
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std::deque<CN_ITEM*> Q;
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CN_ITEM* head = nullptr;
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CLUSTERS clusters;
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if( m_itemList.IsDirty() )
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searchConnections();
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auto addToSearchList = [&head, withinAnyNet, aSingleNet, aTypes] ( CN_ITEM *aItem )
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{
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if( withinAnyNet && aItem->Net() <= 0 )
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return;
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if( !aItem->Valid() )
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return;
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if( aSingleNet >=0 && aItem->Net() != aSingleNet )
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return;
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bool found = false;
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for( int i = 0; aTypes[i] != EOT; i++ )
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{
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if( aItem->Parent()->Type() == aTypes[i] )
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{
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found = true;
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break;
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}
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}
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if( !found )
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return;
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aItem->ListClear();
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aItem->SetVisited( false );
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if( !head )
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head = aItem;
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else
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head->ListInsert( aItem );
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};
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std::for_each( m_itemList.begin(), m_itemList.end(), addToSearchList );
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while( head )
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{
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CN_CLUSTER_PTR cluster ( new CN_CLUSTER() );
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Q.clear();
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CN_ITEM* root = head;
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root->SetVisited ( true );
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head = root->ListRemove();
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Q.push_back( root );
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while( Q.size() )
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{
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CN_ITEM* current = Q.front();
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Q.pop_front();
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cluster->Add( current );
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for( auto n : current->ConnectedItems() )
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{
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if( withinAnyNet && n->Net() != root->Net() )
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continue;
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if( !n->Visited() && n->Valid() )
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{
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n->SetVisited( true );
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Q.push_back( n );
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head = n->ListRemove();
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}
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}
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}
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clusters.push_back( cluster );
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}
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std::sort( clusters.begin(), clusters.end(), []( CN_CLUSTER_PTR a, CN_CLUSTER_PTR b ) {
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return a->OriginNet() < b->OriginNet();
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} );
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#ifdef CONNECTIVITY_DEBUG
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printf("Active clusters: %d\n", clusters.size() );
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for( auto cl : clusters )
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{
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printf( "Net %d\n", cl->OriginNet() );
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cl->Dump();
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}
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#endif
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return clusters;
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}
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void CN_CONNECTIVITY_ALGO::Build( BOARD* aBoard )
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{
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for( int i = 0; i<aBoard->GetAreaCount(); i++ )
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{
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auto zone = aBoard->GetArea( i );
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Add( zone );
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}
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for( auto tv : aBoard->Tracks() )
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Add( tv );
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for( auto mod : aBoard->Modules() )
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{
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for( auto pad : mod->Pads() )
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Add( pad );
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}
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/*wxLogTrace( "CN", "zones : %lu, pads : %lu vias : %lu tracks : %lu\n",
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m_zoneList.Size(), m_padList.Size(),
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m_viaList.Size(), m_trackList.Size() );*/
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}
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void CN_CONNECTIVITY_ALGO::Build( const std::vector<BOARD_ITEM*>& aItems )
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{
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for( auto item : aItems )
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{
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switch( item->Type() )
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{
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case PCB_TRACE_T:
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case PCB_ARC_T:
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case PCB_VIA_T:
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case PCB_PAD_T:
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Add( item );
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break;
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case PCB_MODULE_T:
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{
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for( auto pad : static_cast<MODULE*>( item )->Pads() )
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{
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Add( pad );
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}
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break;
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}
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default:
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break;
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}
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}
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}
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void CN_CONNECTIVITY_ALGO::propagateConnections( BOARD_COMMIT* aCommit )
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{
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for( const auto& cluster : m_connClusters )
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{
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if( cluster->IsConflicting() )
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{
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wxLogTrace( "CN", "Conflicting nets in cluster %p\n", cluster.get() );
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}
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else if( cluster->IsOrphaned() )
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{
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wxLogTrace( "CN", "Skipping orphaned cluster %p [net: %s]\n", cluster.get(),
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(const char*) cluster->OriginNetName().c_str() );
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}
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else if( cluster->HasValidNet() )
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{
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// normal cluster: just propagate from the pads
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int n_changed = 0;
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for( auto item : *cluster )
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{
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if( item->CanChangeNet() )
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{
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if( item->Valid() && item->Parent()->GetNetCode() != cluster->OriginNet() )
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{
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MarkNetAsDirty( item->Parent()->GetNetCode() );
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MarkNetAsDirty( cluster->OriginNet() );
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if( aCommit )
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aCommit->Modify( item->Parent() );
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item->Parent()->SetNetCode( cluster->OriginNet() );
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n_changed++;
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}
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}
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}
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if( n_changed )
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{
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wxLogTrace( "CN", "Cluster %p : net : %d %s\n", cluster.get(),
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cluster->OriginNet(), (const char*) cluster->OriginNetName().c_str() );
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}
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else
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wxLogTrace( "CN", "Cluster %p : nothing to propagate\n", cluster.get() );
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}
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else
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{
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wxLogTrace( "CN", "Cluster %p : connected to unused net\n", cluster.get() );
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}
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}
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}
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void CN_CONNECTIVITY_ALGO::PropagateNets( BOARD_COMMIT* aCommit )
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{
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m_connClusters = SearchClusters( CSM_PROPAGATE );
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propagateConnections( aCommit );
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}
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void CN_CONNECTIVITY_ALGO::FindIsolatedCopperIslands( ZONE_CONTAINER* aZone,
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PCB_LAYER_ID aLayer,
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std::vector<int>& aIslands )
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{
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if( aZone->GetFilledPolysList( aLayer ).IsEmpty() )
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return;
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aIslands.clear();
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Remove( aZone );
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Add( aZone );
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m_connClusters = SearchClusters( CSM_CONNECTIVITY_CHECK );
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for( const auto& cluster : m_connClusters )
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{
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if( cluster->Contains( aZone ) && cluster->IsOrphaned() )
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{
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for( auto z : *cluster )
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{
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if( z->Parent() == aZone && z->Layer() == aLayer )
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{
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aIslands.push_back( static_cast<CN_ZONE*>(z)->SubpolyIndex() );
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}
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}
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}
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}
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wxLogTrace( "CN", "Found %u isolated islands\n", (unsigned)aIslands.size() );
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}
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void CN_CONNECTIVITY_ALGO::FindIsolatedCopperIslands( std::vector<CN_ZONE_ISOLATED_ISLAND_LIST>& aZones )
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{
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for ( auto& z : aZones )
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Remove( z.m_zone );
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|
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for ( auto& z : aZones )
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{
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for( PCB_LAYER_ID layer : z.m_zone->GetLayerSet().Seq() )
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{
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if( !z.m_zone->GetFilledPolysList( layer ).IsEmpty() )
|
|
{
|
|
Add( z.m_zone );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
m_connClusters = SearchClusters( CSM_CONNECTIVITY_CHECK );
|
|
|
|
for ( auto& zone : aZones )
|
|
{
|
|
PCB_LAYER_ID layer = zone.m_layer;
|
|
|
|
if( zone.m_zone->GetFilledPolysList( layer ).IsEmpty() )
|
|
continue;
|
|
|
|
for( const auto& cluster : m_connClusters )
|
|
{
|
|
if( cluster->Contains( zone.m_zone ) && cluster->IsOrphaned() )
|
|
{
|
|
for( auto z : *cluster )
|
|
{
|
|
if( z->Parent() == zone.m_zone && z->Layer() == layer )
|
|
zone.m_islands.push_back( static_cast<CN_ZONE*>( z )->SubpolyIndex() );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
const CN_CONNECTIVITY_ALGO::CLUSTERS& CN_CONNECTIVITY_ALGO::GetClusters()
|
|
{
|
|
m_ratsnestClusters = SearchClusters( CSM_RATSNEST );
|
|
return m_ratsnestClusters;
|
|
}
|
|
|
|
|
|
void CN_CONNECTIVITY_ALGO::MarkNetAsDirty( int aNet )
|
|
{
|
|
if( aNet < 0 )
|
|
return;
|
|
|
|
if( (int) m_dirtyNets.size() <= aNet )
|
|
{
|
|
int lastNet = m_dirtyNets.size() - 1;
|
|
|
|
if( lastNet < 0 )
|
|
lastNet = 0;
|
|
|
|
m_dirtyNets.resize( aNet + 1 );
|
|
|
|
for( int i = lastNet; i < aNet + 1; i++ )
|
|
m_dirtyNets[i] = true;
|
|
}
|
|
|
|
m_dirtyNets[aNet] = true;
|
|
}
|
|
|
|
|
|
void CN_VISITOR::checkZoneItemConnection( CN_ZONE* aZone, CN_ITEM* aItem )
|
|
{
|
|
if( aZone->Net() != aItem->Net() && !aItem->CanChangeNet() )
|
|
return;
|
|
|
|
if( !aZone->BBox().Intersects( aItem->BBox() ) )
|
|
return;
|
|
|
|
auto zoneItem = static_cast<CN_ZONE*> ( aZone );
|
|
|
|
for( int i = 0; i < aItem->AnchorCount(); ++i )
|
|
{
|
|
if( zoneItem->ContainsPoint( aItem->GetAnchor( i ) ) )
|
|
{
|
|
zoneItem->Connect( aItem );
|
|
aItem->Connect( zoneItem );
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void CN_VISITOR::checkZoneZoneConnection( CN_ZONE* aZoneA, CN_ZONE* aZoneB )
|
|
{
|
|
const auto refParent = static_cast<const ZONE_CONTAINER*>( aZoneA->Parent() );
|
|
const auto testedParent = static_cast<const ZONE_CONTAINER*>( aZoneB->Parent() );
|
|
|
|
if( testedParent->Type () != PCB_ZONE_AREA_T )
|
|
return;
|
|
|
|
if( aZoneB == aZoneA || refParent == testedParent )
|
|
return;
|
|
|
|
if( aZoneA->Layer() != aZoneB->Layer() )
|
|
return;
|
|
|
|
if( aZoneB->Net() != aZoneA->Net() )
|
|
return; // we only test zones belonging to the same net
|
|
|
|
PCB_LAYER_ID layer = static_cast<PCB_LAYER_ID>( aZoneA->Layer() );
|
|
|
|
const auto& outline = refParent->GetFilledPolysList( layer ).COutline( aZoneA->SubpolyIndex() );
|
|
|
|
for( int i = 0; i < outline.PointCount(); i++ )
|
|
{
|
|
if( aZoneB->ContainsPoint( outline.CPoint( i ) ) )
|
|
{
|
|
aZoneA->Connect( aZoneB );
|
|
aZoneB->Connect( aZoneA );
|
|
return;
|
|
}
|
|
}
|
|
|
|
const auto& outline2 =
|
|
testedParent->GetFilledPolysList( layer ).COutline( aZoneB->SubpolyIndex() );
|
|
|
|
for( int i = 0; i < outline2.PointCount(); i++ )
|
|
{
|
|
if( aZoneA->ContainsPoint( outline2.CPoint( i ) ) )
|
|
{
|
|
aZoneA->Connect( aZoneB );
|
|
aZoneB->Connect( aZoneA );
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
bool CN_VISITOR::operator()( CN_ITEM* aCandidate )
|
|
{
|
|
const auto parentA = aCandidate->Parent();
|
|
const auto parentB = m_item->Parent();
|
|
|
|
if( !aCandidate->Valid() || !m_item->Valid() )
|
|
return true;
|
|
|
|
if( parentA == parentB )
|
|
return true;
|
|
|
|
if( !( parentA->GetLayerSet() & parentB->GetLayerSet() ).any() )
|
|
return true;
|
|
|
|
// If both m_item and aCandidate are marked dirty, they will both be searched
|
|
// Since we are reciprocal in our connection, we arbitrarily pick one of the connections
|
|
// to conduct the expensive search
|
|
if( aCandidate->Dirty() && aCandidate < m_item )
|
|
return true;
|
|
|
|
// We should handle zone-zone connection separately
|
|
if ( parentA->Type() == PCB_ZONE_AREA_T && parentB->Type() == PCB_ZONE_AREA_T )
|
|
{
|
|
checkZoneZoneConnection( static_cast<CN_ZONE*>( m_item ),
|
|
static_cast<CN_ZONE*>( aCandidate ) );
|
|
return true;
|
|
}
|
|
|
|
if( parentA->Type() == PCB_ZONE_AREA_T )
|
|
{
|
|
checkZoneItemConnection( static_cast<CN_ZONE*>( aCandidate ), m_item );
|
|
return true;
|
|
}
|
|
|
|
if( parentB->Type() == PCB_ZONE_AREA_T )
|
|
{
|
|
checkZoneItemConnection( static_cast<CN_ZONE*>( m_item ), aCandidate );
|
|
return true;
|
|
}
|
|
|
|
// Items do not necessarily have reciprocity as we only check for anchors
|
|
// therefore, we check HitTest both directions A->B & B->A
|
|
for( int i = 0; i < aCandidate->AnchorCount(); ++i )
|
|
{
|
|
if( parentB->HitTest( wxPoint( aCandidate->GetAnchor( i ) ) ) )
|
|
{
|
|
m_item->Connect( aCandidate );
|
|
aCandidate->Connect( m_item );
|
|
return true;
|
|
}
|
|
}
|
|
|
|
for( int i = 0; i < m_item->AnchorCount(); ++i )
|
|
{
|
|
if( parentA->HitTest( wxPoint( m_item->GetAnchor( i ) ) ) )
|
|
{
|
|
m_item->Connect( aCandidate );
|
|
aCandidate->Connect( m_item );
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
|
|
void CN_CONNECTIVITY_ALGO::Clear()
|
|
{
|
|
m_ratsnestClusters.clear();
|
|
m_connClusters.clear();
|
|
m_itemMap.clear();
|
|
m_itemList.Clear();
|
|
|
|
}
|
|
|
|
void CN_CONNECTIVITY_ALGO::SetProgressReporter( PROGRESS_REPORTER* aReporter )
|
|
{
|
|
m_progressReporter = aReporter;
|
|
}
|