kicad/pcbnew/drc/drc_test_provider_hole_size.cpp

/*
 * 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 <geometry/shape_segment.h>
#include <footprint.h>
#include <pad.h>
#include <pcb_track.h>
#include <board_design_settings.h>
#include <drc/drc_engine.h>
#include <drc/drc_item.h>
#include <drc/drc_rule.h>
#include <drc/drc_test_provider_clearance_base.h>
#include "convert_basic_shapes_to_polygon.h"

/*
    Drilled hole size test. scans vias/through-hole pads and checks for min drill sizes
    Errors generated:
    - DRCE_DRILL_OUT_OF_RANGE
    - DRCE_MICROVIA_DRILL_OUT_OF_RANGE
    - DRCE_PADSTACK
*/

class DRC_TEST_PROVIDER_HOLE_SIZE : public DRC_TEST_PROVIDER
{
public:
    DRC_TEST_PROVIDER_HOLE_SIZE()
    {
    }

    virtual ~DRC_TEST_PROVIDER_HOLE_SIZE()
    {
    }

    virtual bool Run() override;

    virtual const wxString GetName() const override
    {
        return wxT( "hole_size" );
    };

    virtual const wxString GetDescription() const override
    {
        return wxT( "Tests sizes of drilled holes (via/pad drills)" );
    }

private:
    void checkViaHole( PCB_VIA* via, bool aExceedMicro, bool aExceedStd );
    void checkPadHole( PAD* aPad );
    void checkPadStack( PAD* aPad );
};


bool DRC_TEST_PROVIDER_HOLE_SIZE::Run()
{
    if( !m_drcEngine->IsErrorLimitExceeded( DRCE_DRILL_OUT_OF_RANGE ) )
    {
        if( !reportPhase( _( "Checking pad holes..." ) ) )
            return false;   // DRC cancelled

        for( FOOTPRINT* footprint : m_drcEngine->GetBoard()->Footprints() )
        {
            if( m_drcEngine->IsErrorLimitExceeded( DRCE_DRILL_OUT_OF_RANGE )
                    && m_drcEngine->IsErrorLimitExceeded( DRCE_PADSTACK ) )
            {
                break;
            }

            for( PAD* pad : footprint->Pads() )
            {
                if( !m_drcEngine->IsErrorLimitExceeded( DRCE_DRILL_OUT_OF_RANGE ) )
                    checkPadHole( pad );

                if( !m_drcEngine->IsErrorLimitExceeded( DRCE_PADSTACK ) )
                    checkPadStack( pad );
            }
        }
    }

    if( !m_drcEngine->IsErrorLimitExceeded( DRCE_MICROVIA_DRILL_OUT_OF_RANGE )
            || !m_drcEngine->IsErrorLimitExceeded( DRCE_DRILL_OUT_OF_RANGE ) )
    {
        if( !m_drcEngine->IsErrorLimitExceeded( DRCE_DRILL_OUT_OF_RANGE ) )
        {
            if( !reportPhase( _( "Checking via holes..." ) ) )
                return false;   // DRC cancelled
        }
        else
        {
            if( !reportPhase( _( "Checking micro-via holes..." ) ) )
                return false;   // DRC cancelled
        }

        for( PCB_TRACK* track : m_drcEngine->GetBoard()->Tracks() )
        {
            if( track->Type() == PCB_VIA_T )
            {
                bool exceedMicro = m_drcEngine->IsErrorLimitExceeded( DRCE_MICROVIA_DRILL_OUT_OF_RANGE );
                bool exceedStd = m_drcEngine->IsErrorLimitExceeded( DRCE_DRILL_OUT_OF_RANGE );

                if( exceedMicro && exceedStd )
                    break;

                checkViaHole( static_cast<PCB_VIA*>( track ), exceedMicro, exceedStd );
            }
        }
    }

    reportRuleStatistics();

    return !m_drcEngine->IsCancelled();
}

void DRC_TEST_PROVIDER_HOLE_SIZE::checkPadStack( PAD* aPad )
{
    if( aPad->GetAttribute() == PAD_ATTRIB::PTH )
    {
        if( !aPad->IsOnCopperLayer() )
        {
            std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( DRCE_PADSTACK );
            m_msg.Printf( _( " (PTH pad has no copper layers)" ) );

            drcItem->SetErrorMessage( drcItem->GetErrorText() + wxS( " " ) + m_msg );
            drcItem->SetItems( aPad );

            reportViolation( drcItem, aPad->GetPosition(), UNDEFINED_LAYER );
        }
        else
        {
            LSET           lset = aPad->GetLayerSet() & LSET::AllCuMask();
            PCB_LAYER_ID   layer = lset.Seq().at( 0 );
            int            maxError = m_drcEngine->GetBoard()->GetDesignSettings().m_MaxError;
            SHAPE_POLY_SET padOutline;

            aPad->TransformShapeWithClearanceToPolygon( padOutline, layer, 0, maxError,
                                                        ERROR_LOC::ERROR_INSIDE );

            const SHAPE_SEGMENT* drillShape = aPad->GetEffectiveHoleShape();
            const SEG            drillSeg   = drillShape->GetSeg();
            SHAPE_POLY_SET       drillOutline;

            TransformOvalToPolygon( drillOutline, drillSeg.A, drillSeg.B,
                                    drillShape->GetWidth(), maxError, ERROR_LOC::ERROR_INSIDE );

            padOutline.BooleanSubtract( drillOutline, SHAPE_POLY_SET::POLYGON_MODE::PM_FAST );

            if( padOutline.IsEmpty() )
            {
                std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( DRCE_PADSTACK );
                m_msg.Printf( _( " (PTH pad's hole leaves no copper)" ) );

                drcItem->SetErrorMessage( drcItem->GetErrorText() + wxS( " " ) + m_msg );
                drcItem->SetItems( aPad );

                reportViolation( drcItem, aPad->GetPosition(), UNDEFINED_LAYER );
            }
        }
    }
}

void DRC_TEST_PROVIDER_HOLE_SIZE::checkPadHole( PAD* aPad )
{
    int holeMinor = std::min( aPad->GetDrillSize().x, aPad->GetDrillSize().y );
    int holeMajor = std::max( aPad->GetDrillSize().x, aPad->GetDrillSize().y );

    if( holeMinor == 0 )
        return;

    auto constraint = m_drcEngine->EvalRules( HOLE_SIZE_CONSTRAINT, aPad, nullptr,
                                              UNDEFINED_LAYER /* holes are not layer-specific */ );
    bool fail_min = false;
    bool fail_max = false;
    int  constraintValue;

    if( constraint.GetSeverity() == RPT_SEVERITY_IGNORE )
        return;

    if( constraint.Value().HasMin() && holeMinor < constraint.Value().Min() )
    {
        fail_min        = true;
        constraintValue = constraint.Value().Min();
    }

    if( constraint.Value().HasMax() && holeMajor > constraint.Value().Max() )
    {
        fail_max        = true;
        constraintValue = constraint.Value().Max();
    }

    if( fail_min || fail_max )
    {
        std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( DRCE_DRILL_OUT_OF_RANGE );

        if( fail_min )
        {
            m_msg.Printf( _( "(%s min width %s; actual %s)" ),
                          constraint.GetName(),
                          MessageTextFromValue( userUnits(), constraintValue ),
                          MessageTextFromValue( userUnits(), holeMinor ) );
        }
        else
        {
            m_msg.Printf( _( "(%s max width %s; actual %s)" ),
                          constraint.GetName(),
                          MessageTextFromValue( userUnits(), constraintValue ),
                          MessageTextFromValue( userUnits(), holeMajor ) );
        }

        drcItem->SetErrorMessage( drcItem->GetErrorText() + wxS( " " ) + m_msg );
        drcItem->SetItems( aPad );
        drcItem->SetViolatingRule( constraint.GetParentRule() );

        reportViolation( drcItem, aPad->GetPosition(), UNDEFINED_LAYER );
    }
}


void DRC_TEST_PROVIDER_HOLE_SIZE::checkViaHole( PCB_VIA* via, bool aExceedMicro, bool aExceedStd )
{
    int errorCode;

    if( via->GetViaType() == VIATYPE::MICROVIA )
    {
        if( aExceedMicro )
            return;

        errorCode = DRCE_MICROVIA_DRILL_OUT_OF_RANGE;
    }
    else
    {
        if( aExceedStd )
            return;

        errorCode = DRCE_DRILL_OUT_OF_RANGE;
    }

    auto constraint = m_drcEngine->EvalRules( HOLE_SIZE_CONSTRAINT, via, nullptr,
                                              UNDEFINED_LAYER /* holes are not layer-specific */ );
    bool fail_min = false;
    bool fail_max = false;
    int  constraintValue;

    if( constraint.GetSeverity() == RPT_SEVERITY_IGNORE )
        return;

    if( constraint.Value().HasMin() && via->GetDrillValue() < constraint.Value().Min() )
    {
        fail_min        = true;
        constraintValue = constraint.Value().Min();
    }

    if( constraint.Value().HasMax() && via->GetDrillValue() > constraint.Value().Max() )
    {
        fail_max        = true;
        constraintValue = constraint.Value().Max();
    }

    if( fail_min || fail_max )
    {
        std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( errorCode );

        if( fail_min )
        {
            m_msg.Printf( _( "(%s min width %s; actual %s)" ),
                          constraint.GetName(),
                          MessageTextFromValue( userUnits(), constraintValue ),
                          MessageTextFromValue( userUnits(), via->GetDrillValue() ) );
        }
        else
        {
            m_msg.Printf( _( "(%s max width %s; actual %s)" ),
                          constraint.GetName(),
                          MessageTextFromValue( userUnits(), constraintValue ),
                          MessageTextFromValue( userUnits(), via->GetDrillValue() ) );
        }

        drcItem->SetErrorMessage( drcItem->GetErrorText() + wxS( " " ) + m_msg );
        drcItem->SetItems( via );
        drcItem->SetViolatingRule( constraint.GetParentRule() );

        reportViolation( drcItem, via->GetPosition(), UNDEFINED_LAYER );
    }
}


namespace detail
{
static DRC_REGISTER_TEST_PROVIDER<DRC_TEST_PROVIDER_HOLE_SIZE> dummy;
}