drc_test_provider_connectivity.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2004-2022 KiCad Developers.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <board.h>
#include <common.h>
 
#include <connectivity/connectivity_data.h>
#include <connectivity/connectivity_algo.h>
 
#include <drc/drc_engine.h>
#include <drc/drc_item.h>
#include <drc/drc_rule.h>
#include <drc/drc_test_provider.h>
 
 
/*
 Connectivity test provider. Not rule-driven.
 Errors generated:
 - DRCE_DANGLING_TRACK
 - DRCE_DANGLING_VIA
 - DRCE_ISOLATED_COPPER
*/
 
class DRC_TEST_PROVIDER_CONNECTIVITY : public DRC_TEST_PROVIDER
{
public:
 DRC_TEST_PROVIDER_CONNECTIVITY()
 {
  }
 
 virtual ~DRC_TEST_PROVIDER_CONNECTIVITY()
 {
 }
 
 virtual bool Run() override;
 
 virtual const wxString GetName() const override
 {
 return wxT( "connectivity" );
 };
 
 virtual const wxString GetDescription() const override
 {
 return wxT( "Tests board connectivity" );
 }
};
 
 
bool DRC_TEST_PROVIDER_CONNECTIVITY::Run()
{
 if( !reportPhase( _( "Checking pad, via and zone connections..." ) ) )
 return false; // DRC cancelled
 
 BOARD* board = m_drcEngine->GetBoard();
 
 std::shared_ptr<CONNECTIVITY_DATA> connectivity = board->GetConnectivity();
 std::vector<CN_ZONE_ISOLATED_ISLAND_LIST> islandsList;
 
 for( ZONE* zone : board->Zones() )
 {
 if( !zone->GetIsRuleArea() )
 islandsList.emplace_back( CN_ZONE_ISOLATED_ISLAND_LIST( zone ) );
 }
 
 // Rebuild (from scratch, ignoring dirty flags) just in case. This really needs to be reliable.
 connectivity->ClearRatsnest();
 connectivity->Build( board, m_drcEngine->GetProgressReporter() );
 connectivity->FindIsolatedCopperIslands( islandsList, true );
 
 int progressDelta = 250;
 int ii = 0;
 int count = board->Tracks().size() + islandsList.size();
 
 ii += count; // We gave half of this phase to CONNECTIVITY_DATA::Build()
 count += count;
 
 for( PCB_TRACK* track : board->Tracks() )
 {
 bool exceedT = m_drcEngine->IsErrorLimitExceeded( DRCE_DANGLING_TRACK );
 bool exceedV = m_drcEngine->IsErrorLimitExceeded( DRCE_DANGLING_VIA );
 
 if( exceedV && exceedT )
 break;
 else if( track->Type() == PCB_VIA_T && exceedV )
 continue;
 else if( track->Type() == PCB_TRACE_T && exceedT )
 continue;
 
 if( !reportProgress( ii++, count, progressDelta ) )
 return false; // DRC cancelled
 
 // Test for dangling items
 int code = track->Type() == PCB_VIA_T ? DRCE_DANGLING_VIA : DRCE_DANGLING_TRACK;
 VECTOR2I pos;
 
 if( connectivity->TestTrackEndpointDangling( track, &pos ) )
 {
 std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( code );
 drcItem->SetItems( track );
 reportViolation( drcItem, pos, track->GetLayer() );
 }
 }
 
 /* test starved zones */
 for( CN_ZONE_ISOLATED_ISLAND_LIST& zone : islandsList )
 {
 if( m_drcEngine->IsErrorLimitExceeded( DRCE_ISOLATED_COPPER ) )
 break;
 
 if( !reportProgress( ii++, count, progressDelta ) )
 return false; // DRC cancelled
 
 for( PCB_LAYER_ID layer : zone.m_zone->GetLayerSet().Seq() )
 {
 if( !zone.m_islands.count( layer ) )
 continue;
 
 std::shared_ptr<SHAPE_POLY_SET> poly = zone.m_zone->GetFilledPolysList( layer );
 
 for( int idx : zone.m_islands.at( layer ) )
 {
 if( m_drcEngine->IsErrorLimitExceeded( DRCE_ISOLATED_COPPER ) )
 break;
 
 std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( DRCE_ISOLATED_COPPER );
 drcItem->SetItems( zone.m_zone );
 reportViolation( drcItem, poly->Outline( idx ).CPoint( 0 ), layer );
 }
 }
 }
 
 if( m_drcEngine->IsErrorLimitExceeded( DRCE_UNCONNECTED_ITEMS ) )
 return true; // continue with other tests
 
 if( !reportPhase( _( "Checking net connections..." ) ) )
 return false; // DRC cancelled
 
 ii = 0;
 count = connectivity->GetUnconnectedCount( false );
 
 connectivity->RunOnUnconnectedEdges(
 [&]( CN_EDGE& edge )
 {
 if( m_drcEngine->IsErrorLimitExceeded( DRCE_UNCONNECTED_ITEMS ) )
 return false;
 
 if( !reportProgress( ii++, count, progressDelta ) )
 return false; // DRC cancelled
 
 std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( DRCE_UNCONNECTED_ITEMS );
 drcItem->SetItems( edge.GetSourceNode()->Parent(), edge.GetTargetNode()->Parent() );
 reportViolation( drcItem, edge.GetSourceNode()->Pos(), UNDEFINED_LAYER );
 
 return true;
 } );
 
 reportRuleStatistics();
 
 return !m_drcEngine->IsCancelled();
}
 
 
namespace detail
{
static DRC_REGISTER_TEST_PROVIDER<DRC_TEST_PROVIDER_CONNECTIVITY> dummy;
}