drc_test_provider_disallow.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 <atomic>
#include <common.h>
#include <board_design_settings.h>
#include <drc/drc_rtree.h>
#include <drc/drc_engine.h>
#include <drc/drc_item.h>
#include <drc/drc_rule.h>
#include <drc/drc_test_provider.h>
#include <pad.h>
#include <progress_reporter.h>
#include <core/thread_pool.h>
#include <zone.h>
 
 
/*
 "Disallow" test. Goes through all items, matching types/conditions drop errors.
 Errors generated:
 - DRCE_ALLOWED_ITEMS
 - DRCE_TEXT_ON_EDGECUTS
*/
 
class DRC_TEST_PROVIDER_DISALLOW : public DRC_TEST_PROVIDER
{
public:
 DRC_TEST_PROVIDER_DISALLOW()
 {
 }
 
 virtual ~DRC_TEST_PROVIDER_DISALLOW()
 {
 }
 
 virtual bool Run() override;
 
 virtual const wxString GetName() const override
 {
 return wxT( "disallow" );
 };
 
 virtual const wxString GetDescription() const override
 {
 return wxT( "Tests for disallowed items (e.g. keepouts)" );
 }
};
 
 
bool DRC_TEST_PROVIDER_DISALLOW::Run()
{
 if( !reportPhase( _( "Checking keepouts & disallow constraints..." ) ) )
 return false; // DRC cancelled
 
 BOARD* board = m_drcEngine->GetBoard();
 int epsilon = board->GetDesignSettings().GetDRCEpsilon();
 
 // First build out the board's cache of copper-keepout to copper-zone caches. This is where
 // the bulk of the time is spent, and we can do this in parallel.
 //
 std::vector<ZONE*> antiCopperKeepouts;
 std::vector<ZONE*> copperZones;
 std::vector<std::pair<ZONE*, ZONE*>> toCache;
 std::atomic<size_t> done( 1 );
 int totalCount = 0;
 
 forEachGeometryItem( {}, LSET::AllLayersMask(),
 [&]( BOARD_ITEM* item ) -> bool
 {
 ZONE* zone = dynamic_cast<ZONE*>( item );
 
 if( zone && zone->GetIsRuleArea() && zone->GetDoNotAllowCopperPour() )
 antiCopperKeepouts.push_back( zone );
 else if( zone && zone->IsOnCopperLayer() )
 copperZones.push_back( zone );
 
 totalCount++;
 
 return true;
 } );
 
 for( ZONE* ruleArea : antiCopperKeepouts )
 {
 for( ZONE* copperZone : copperZones )
 {
 toCache.push_back( { ruleArea, copperZone } );
 totalCount++;
 }
 }
 
 auto query_areas =
 [&]( std::pair<ZONE* /* rule area */, ZONE* /* copper zone */> areaZonePair ) -> size_t
 {
 if( m_drcEngine->IsCancelled() )
 return 0;
 
 ZONE* ruleArea = areaZonePair.first;
 ZONE* copperZone = areaZonePair.second;
 BOX2I areaBBox = ruleArea->GetBoundingBox();
 BOX2I copperBBox = copperZone->GetBoundingBox();
 bool isInside = false;
 
 if( copperZone->IsFilled() && areaBBox.Intersects( copperBBox ) )
 {
 // Collisions include touching, so we need to deflate outline by enough to
 // exclude it. This is particularly important for detecting copper fills as
 // they will be exactly touching along the entire exclusion border.
 SHAPE_POLY_SET areaPoly = ruleArea->Outline()->CloneDropTriangulation();
 areaPoly.Fracture( SHAPE_POLY_SET::PM_FAST );
 areaPoly.Deflate( epsilon, SHAPE_POLY_SET::ALLOW_ACUTE_CORNERS, ARC_LOW_DEF );
 
 DRC_RTREE* zoneRTree = board->m_CopperZoneRTreeCache[ copperZone ].get();
 
 if( zoneRTree )
 {
 for( PCB_LAYER_ID layer : ruleArea->GetLayerSet().Seq() )
 {
 if( zoneRTree->QueryColliding( areaBBox, &areaPoly, layer ) )
 {
 isInside = true;
 break;
 }
 
 if( m_drcEngine->IsCancelled() )
 return 0;
 }
 }
 }
 
 if( m_drcEngine->IsCancelled() )
 return 0;
 
 PTR_PTR_LAYER_CACHE_KEY key = { ruleArea, copperZone, UNDEFINED_LAYER };
 
 {
 std::unique_lock<std::mutex> cacheLock( board->m_CachesMutex );
 board->m_IntersectsAreaCache[ key ] = isInside;
 }
 
 done.fetch_add( 1 );
 
 return 1;
 };
 
 thread_pool& tp = GetKiCadThreadPool();
 std::vector<std::future<size_t>> returns;
 
 returns.reserve( toCache.size() );
 
 for( const std::pair<ZONE*, ZONE*>& areaZonePair : toCache )
 returns.emplace_back( tp.submit( query_areas, areaZonePair ) );
 
 for( const std::future<size_t>& ret : returns )
 {
 std::future_status status = ret.wait_for( std::chrono::milliseconds( 250 ) );
 
 while( status != std::future_status::ready )
 {
 m_drcEngine->ReportProgress( static_cast<double>( done ) / toCache.size() );
 status = ret.wait_for( std::chrono::milliseconds( 250 ) );
 }
 }
 
 if( m_drcEngine->IsCancelled() )
 return false;
 
 // Now go through all the board objects calling the DRC_ENGINE to run the actual disallow
 // tests. These should be reasonably quick using the caches generated above.
 //
 const int progressDelta = 250;
 int ii = static_cast<int>( toCache.size() );
 
 auto checkTextOnEdgeCuts =
 [&]( BOARD_ITEM* item )
 {
 if( item->Type() == PCB_FIELD_T || item->Type() == PCB_TEXT_T || item->Type() == PCB_TEXTBOX_T
 || BaseType( item->Type() ) == PCB_DIMENSION_T )
 {
 if( item->GetLayer() == Edge_Cuts )
 {
 std::shared_ptr<DRC_ITEM> drc = DRC_ITEM::Create( DRCE_TEXT_ON_EDGECUTS );
 drc->SetItems( item );
 reportViolation( drc, item->GetPosition(), Edge_Cuts );
 }
 }
 };
 
 auto checkDisallow =
 [&]( BOARD_ITEM* item )
 {
 DRC_CONSTRAINT constraint = m_drcEngine->EvalRules( DISALLOW_CONSTRAINT, item,
 nullptr, UNDEFINED_LAYER );
 
 if( constraint.m_DisallowFlags && constraint.GetSeverity() != RPT_SEVERITY_IGNORE )
 {
 std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( DRCE_ALLOWED_ITEMS );
 DRC_RULE* rule = constraint.GetParentRule();
 VECTOR2I pos = item->GetPosition();
 PCB_LAYER_ID layer = UNDEFINED_LAYER;
 wxString msg;
 
 msg.Printf( drcItem->GetErrorText() + wxS( " (%s)" ), constraint.GetName() );
 
 drcItem->SetErrorMessage( msg );
 drcItem->SetItems( item );
 drcItem->SetViolatingRule( rule );
 
 if( item->GetLayerSet().count() )
 layer = item->GetLayerSet().Seq().front();
 
 if( rule->m_Implicit )
 {
 // Provide a better location for keepout area collisions.
 BOARD_ITEM* ruleItem = board->GetItem( rule->m_ImplicitItemId );
 
 if( ZONE* keepout = dynamic_cast<ZONE*>( ruleItem ) )
 {
 std::shared_ptr<SHAPE> shape = item->GetEffectiveShape( layer );
 int dummyActual;
 
 keepout->Outline()->Collide( shape.get(), board->m_DRCMaxClearance,
 &dummyActual, &pos );
 }
 }
 
 reportViolation( drcItem, pos, layer );
 }
 };
 
 forEachGeometryItem( {}, LSET::AllLayersMask(),
 [&]( BOARD_ITEM* item ) -> bool
 {
 if( !m_drcEngine->IsErrorLimitExceeded( DRCE_TEXT_ON_EDGECUTS ) )
 checkTextOnEdgeCuts( item );
 
 if( !m_drcEngine->IsErrorLimitExceeded( DRCE_ALLOWED_ITEMS ) )
 {
 ZONE* zone = dynamic_cast<ZONE*>( item );
 
 if( zone && zone->GetIsRuleArea() )
 return true;
 
 item->ClearFlags( HOLE_PROXY ); // Just in case
 
 checkDisallow( item );
 
 if( item->HasHole() )
 {
 item->SetFlags( HOLE_PROXY );
 checkDisallow( item );
 item->ClearFlags( HOLE_PROXY );
 }
 }
 
 if( !reportProgress( ii++, totalCount, progressDelta ) )
 return false;
 
 return true;
 } );
 
 reportRuleStatistics();
 
 return !m_drcEngine->IsCancelled();
}
 
 
namespace detail
{
static DRC_REGISTER_TEST_PROVIDER<DRC_TEST_PROVIDER_DISALLOW> dummy;
}