246 lines
8.7 KiB
C++
246 lines
8.7 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) 2021-2022 KiCad Developers.
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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 <atomic>
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#include <thread>
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#include <board.h>
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#include <board_design_settings.h>
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#include <zone.h>
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#include <footprint.h>
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#include <pcb_shape.h>
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#include <geometry/shape_poly_set.h>
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#include <drc/drc_rule.h>
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#include <drc/drc_item.h>
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#include <drc/drc_test_provider.h>
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#include <advanced_config.h>
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/*
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Checks for slivers in copper layers
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Errors generated:
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- DRCE_COPPER_SLIVER
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*/
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class DRC_TEST_PROVIDER_SLIVER_CHECKER : public DRC_TEST_PROVIDER
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{
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public:
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DRC_TEST_PROVIDER_SLIVER_CHECKER()
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{
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}
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virtual ~DRC_TEST_PROVIDER_SLIVER_CHECKER()
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{
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}
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virtual bool Run() override;
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virtual const wxString GetName() const override
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{
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return wxT( "sliver checker" );
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};
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virtual const wxString GetDescription() const override
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{
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return wxT( "Checks copper layers for slivers" );
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}
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private:
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wxString layerDesc( PCB_LAYER_ID aLayer );
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};
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wxString DRC_TEST_PROVIDER_SLIVER_CHECKER::layerDesc( PCB_LAYER_ID aLayer )
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{
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return wxString::Format( wxT( "(%s)" ), m_drcEngine->GetBoard()->GetLayerName( aLayer ) );
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}
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bool DRC_TEST_PROVIDER_SLIVER_CHECKER::Run()
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{
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if( m_drcEngine->IsErrorLimitExceeded( DRCE_COPPER_SLIVER ) )
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return true; // Continue with other tests
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if( !reportPhase( _( "Running sliver detection on copper layers..." ) ) )
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return false; // DRC cancelled
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int widthTolerance = Millimeter2iu( ADVANCED_CFG::GetCfg().m_SliverWidthTolerance );
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double angleTolerance = ADVANCED_CFG::GetCfg().m_SliverAngleTolerance;
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int testLength = widthTolerance / ( 2 * sin( DEG2RAD( angleTolerance / 2 ) ) );
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LSET copperLayerSet = m_drcEngine->GetBoard()->GetEnabledLayers() & LSET::AllCuMask();
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LSEQ copperLayers = copperLayerSet.Seq();
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int layerCount = copperLayers.size();
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// Report progress on board zones only. Everything else is in the noise.
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int zoneLayerCount = 0;
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for( PCB_LAYER_ID layer : copperLayers )
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{
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for( ZONE* zone : m_drcEngine->GetBoard()->Zones() )
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{
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if( !zone->GetIsRuleArea() && zone->IsOnLayer( layer ) )
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zoneLayerCount++;
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}
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}
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// The first completion may be a long time coming, so this one gets us started.
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zoneLayerCount++;
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if( !m_drcEngine->ReportProgress( 1.0 / (double) zoneLayerCount ) )
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return false; // DRC cancelled
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std::vector<SHAPE_POLY_SET> layerPolys;
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layerPolys.resize( layerCount );
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std::atomic<size_t> next( 0 );
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std::atomic<size_t> done( 1 );
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std::atomic<size_t> threads_finished( 0 );
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size_t parallelThreadCount = std::max<size_t>( std::thread::hardware_concurrency(), 2 );
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for( size_t ii = 0; ii < parallelThreadCount; ++ii )
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{
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std::thread t = std::thread(
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[&]( )
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{
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for( int i = next.fetch_add( 1 ); i < layerCount; i = next.fetch_add( 1 ) )
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{
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PCB_LAYER_ID layer = copperLayers[i];
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SHAPE_POLY_SET& poly = layerPolys[i];
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SHAPE_POLY_SET fill;
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forEachGeometryItem( s_allBasicItems, LSET().set( layer ),
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[&]( BOARD_ITEM* item ) -> bool
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{
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if( dynamic_cast<ZONE*>( item) )
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{
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ZONE* zone = static_cast<ZONE*>( item );
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if( !zone->GetIsRuleArea() )
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{
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fill = zone->GetFill( layer )->CloneDropTriangulation();
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fill.Unfracture( SHAPE_POLY_SET::PM_FAST );
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for( int jj = 0; jj < fill.OutlineCount(); ++jj )
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poly.AddOutline( fill.Outline( jj ) );
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// Report progress on board zones only. Everything
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// else is in the noise.
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done.fetch_add( 1 );
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}
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}
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else
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{
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item->TransformShapeWithClearanceToPolygon( poly, layer, 0,
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ARC_LOW_DEF,
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ERROR_OUTSIDE );
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}
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if( m_drcEngine->IsCancelled() )
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return false;
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return true;
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} );
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poly.Simplify( SHAPE_POLY_SET::PM_FAST );
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// Sharpen corners
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poly.Deflate( widthTolerance / 2, ARC_LOW_DEF,
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SHAPE_POLY_SET::ALLOW_ACUTE_CORNERS );
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if( m_drcEngine->IsCancelled() )
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break;
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}
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threads_finished.fetch_add( 1 );
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} );
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t.detach();
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}
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while( threads_finished < parallelThreadCount )
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{
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m_drcEngine->ReportProgress( (double) done / (double) zoneLayerCount );
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std::this_thread::sleep_for( std::chrono::milliseconds( 100 ) );
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}
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for( int ii = 0; ii < layerCount; ++ii )
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{
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PCB_LAYER_ID layer = copperLayers[ii];
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SHAPE_POLY_SET& poly = layerPolys[ii];
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if( m_drcEngine->IsErrorLimitExceeded( DRCE_COPPER_SLIVER ) )
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continue;
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// Frequently, in filled areas, some points of the polygons are very near (dist is only
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// a few internal units, like 2 or 3 units.
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// We skip very small vertices: one cannot really compute a valid orientation of
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// such a vertex
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// So skip points near than min_len (in internal units).
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const int min_len = 3;
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for( int jj = 0; jj < poly.OutlineCount(); ++jj )
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{
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const std::vector<VECTOR2I>& pts = poly.Outline( jj ).CPoints();
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int ptCount = pts.size();
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for( int kk = 0; kk < ptCount; ++kk )
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{
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VECTOR2I pt = pts[ kk ];
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VECTOR2I ptPrior = pts[ ( ptCount + kk - 1 ) % ptCount ];
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VECTOR2I vPrior = ( ptPrior - pt );
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if( std::abs( vPrior.x ) < min_len && std::abs( vPrior.y ) < min_len && ptCount > 5)
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{
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ptPrior = pts[ ( ptCount + kk - 2 ) % ptCount ];
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vPrior = ( ptPrior - pt );
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}
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VECTOR2I ptAfter = pts[ ( kk + 1 ) % ptCount ];
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VECTOR2I vAfter = ( ptAfter - pt );
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if( std::abs( vAfter.x ) < min_len && std::abs( vAfter.y ) < min_len && ptCount > 5 )
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{
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ptAfter = pts[ ( kk + 2 ) % ptCount ];
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vAfter = ( ptAfter - pt );
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}
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VECTOR2I vIncluded = vPrior.Resize( testLength ) - vAfter.Resize( testLength );
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if( vIncluded.SquaredEuclideanNorm() < SEG::Square( widthTolerance ) )
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{
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std::shared_ptr<DRC_ITEM> drce = DRC_ITEM::Create( DRCE_COPPER_SLIVER );
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drce->SetErrorMessage( drce->GetErrorText() + wxS( " " ) + layerDesc( layer ) );
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reportViolation( drce, pt, layer );
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}
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}
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}
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}
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return true;
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}
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namespace detail
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{
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static DRC_REGISTER_TEST_PROVIDER<DRC_TEST_PROVIDER_SLIVER_CHECKER> dummy;
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}
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