kicad/pcbnew/drc/drc_test_provider_matched_l...

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004-2020 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <common.h>
#include <board.h>
#include <pad.h>
#include <track.h>
#include <drc/drc_item.h>
#include <drc/drc_rule.h>
#include <drc/drc_test_provider.h>
#include <drc/drc_length_report.h>
#include <connectivity/connectivity_data.h>
#include <connectivity/from_to_cache.h>
#include <pcb_expr_evaluator.h>
/*
Single-ended matched length + skew + via count test.
Errors generated:
- DRCE_LENGTH_OUT_OF_RANGE
- DRCE_SKEW_OUT_OF_RANGE
- DRCE_TOO_MANY_VIAS
Todo: arc support
*/
class DRC_TEST_PROVIDER_MATCHED_LENGTH : public DRC_TEST_PROVIDER
{
public:
DRC_TEST_PROVIDER_MATCHED_LENGTH () :
m_board( nullptr )
{
}
virtual ~DRC_TEST_PROVIDER_MATCHED_LENGTH()
{
}
virtual bool Run() override;
virtual const wxString GetName() const override
{
return "length";
};
virtual const wxString GetDescription() const override
{
return "Tests matched track lengths.";
}
virtual int GetNumPhases() const override
{
return 1;
}
virtual std::set<DRC_CONSTRAINT_TYPE_T> GetConstraintTypes() const override;
DRC_LENGTH_REPORT BuildLengthReport() const;
private:
bool runInternal( bool aDelayReportMode = false );
using LENGTH_ENTRY = DRC_LENGTH_REPORT::ENTRY;
typedef std::set<BOARD_CONNECTED_ITEM*> CITEMS;
typedef std::vector<LENGTH_ENTRY> LENGTH_ENTRIES;
void checkLengthViolations( DRC_CONSTRAINT& aConstraint, LENGTH_ENTRIES& aMatchedConnections );
void checkSkewViolations( DRC_CONSTRAINT& aConstraint, LENGTH_ENTRIES& aMatchedConnections );
void checkViaCountViolations( DRC_CONSTRAINT& aConstraint, LENGTH_ENTRIES& aMatchedConnections );
BOARD* m_board;
DRC_LENGTH_REPORT m_report;
};
static int computeViaThruLength( VIA *aVia, const std::set<BOARD_CONNECTED_ITEM*> &conns )
{
return 0; // fixme: not yet there...
}
void DRC_TEST_PROVIDER_MATCHED_LENGTH::checkLengthViolations( DRC_CONSTRAINT& aConstraint,
LENGTH_ENTRIES& matchedConnections )
{
for( const DRC_LENGTH_REPORT::ENTRY& ent : matchedConnections )
{
bool minViolation = false;
bool maxViolation = false;
int minLen = 0;
int maxLen = 0;
if( aConstraint.GetValue().HasMin() && ent.total < aConstraint.GetValue().Min() )
{
minViolation = true;
minLen = aConstraint.GetValue().Min();
}
else if( aConstraint.GetValue().HasMax() && ent.total > aConstraint.GetValue().Max() )
{
maxViolation = true;
maxLen = aConstraint.GetValue().Max();
}
if( ( minViolation || maxViolation ) )
{
std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( DRCE_LENGTH_OUT_OF_RANGE );
if( minViolation )
{
m_msg.Printf( _( "(%s min length: %s; actual: %s)" ),
aConstraint.GetName(),
MessageTextFromValue( userUnits(), minLen ),
MessageTextFromValue( userUnits(), ent.total ) );
}
else if( maxViolation )
{
m_msg.Printf( _( "(%s max length: %s; actual: %s)" ),
aConstraint.GetName(),
MessageTextFromValue( userUnits(), maxLen ),
MessageTextFromValue( userUnits(), ent.total ) );
}
drcItem->SetErrorMessage( drcItem->GetErrorText() + wxS( " " ) + m_msg );
for( auto offendingTrack : ent.items )
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drcItem->AddItem( offendingTrack );
drcItem->SetViolatingRule( aConstraint.GetParentRule() );
reportViolation( drcItem, (*ent.items.begin() )->GetPosition() );
}
}
}
void DRC_TEST_PROVIDER_MATCHED_LENGTH::checkSkewViolations( DRC_CONSTRAINT& aConstraint,
LENGTH_ENTRIES& matchedConnections )
{
int avgLength = 0;
for( const DRC_LENGTH_REPORT::ENTRY& ent : matchedConnections )
avgLength += ent.total;
avgLength /= matchedConnections.size();
for( const auto& ent : matchedConnections )
{
int skew = ent.total - avgLength;
if( aConstraint.GetValue().HasMax() && abs( skew ) > aConstraint.GetValue().Max() )
{
std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( DRCE_SKEW_OUT_OF_RANGE );
m_msg.Printf( _( "(%s max skew: %s; actual: %s; average net length: %s; actual: %s)" ),
aConstraint.GetName(),
MessageTextFromValue( userUnits(), aConstraint.GetValue().Max() ),
MessageTextFromValue( userUnits(), skew ),
MessageTextFromValue( userUnits(), avgLength ),
MessageTextFromValue( userUnits(), ent.total ) );
drcItem->SetErrorMessage( drcItem->GetErrorText() + " " + m_msg );
for( BOARD_CONNECTED_ITEM* offendingTrack : ent.items )
drcItem->SetItems( offendingTrack );
drcItem->SetViolatingRule( aConstraint.GetParentRule() );
reportViolation( drcItem, (*ent.items.begin() )->GetPosition() );
}
}
}
void DRC_TEST_PROVIDER_MATCHED_LENGTH::checkViaCountViolations( DRC_CONSTRAINT& aConstraint,
LENGTH_ENTRIES& matchedConnections )
{
for( const auto& ent : matchedConnections )
{
if( aConstraint.GetValue().HasMax() && ent.viaCount > aConstraint.GetValue().Max() )
{
std::shared_ptr<DRC_ITEM> drcItem = DRC_ITEM::Create( DRCE_TOO_MANY_VIAS );
m_msg.Printf( _( "(%s max count: %d; actual: %d)" ),
aConstraint.GetName(),
aConstraint.GetValue().Max(),
ent.viaCount );
drcItem->SetErrorMessage( drcItem->GetErrorText() + wxS( " " ) + m_msg );
for( auto offendingTrack : ent.items )
drcItem->SetItems( offendingTrack );
drcItem->SetViolatingRule( aConstraint.GetParentRule() );
reportViolation( drcItem, (*ent.items.begin() )->GetPosition() );
}
}
}
bool DRC_TEST_PROVIDER_MATCHED_LENGTH::Run()
{
return runInternal( false );
}
bool DRC_TEST_PROVIDER_MATCHED_LENGTH::runInternal( bool aDelayReportMode )
{
m_board = m_drcEngine->GetBoard();
m_report.Clear();
if( !aDelayReportMode )
{
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if( !reportPhase( _( "Gathering length-constrained connections..." ) ) )
return false;
}
std::map<DRC_RULE*, CITEMS> itemSets;
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auto evaluateLengthConstraints =
[&]( BOARD_ITEM *item ) -> bool
{
const DRC_CONSTRAINT_TYPE_T constraintsToCheck[] = {
LENGTH_CONSTRAINT,
SKEW_CONSTRAINT,
VIA_COUNT_CONSTRAINT,
};
for( int i = 0; i < 3; i++ )
{
auto constraint = m_drcEngine->EvalRulesForItems( constraintsToCheck[i], item,
nullptr, item->GetLayer() );
if( constraint.IsNull() )
continue;
auto citem = static_cast<BOARD_CONNECTED_ITEM*>( item );
itemSets[ constraint.GetParentRule() ].insert( citem );
}
return true;
};
auto ftCache = m_board->GetConnectivity()->GetFromToCache();
ftCache->Rebuild( m_board );
forEachGeometryItem( { PCB_TRACE_T, PCB_VIA_T, PCB_ARC_T }, LSET::AllCuMask(),
evaluateLengthConstraints );
std::map<DRC_RULE*, LENGTH_ENTRIES> matches;
for( auto it : itemSets )
{
std::map<int, CITEMS> netMap;
for( auto citem : it.second )
netMap[ citem->GetNetCode() ].insert( citem );
for( auto nitem : netMap )
{
LENGTH_ENTRY ent;
ent.items = nitem.second;
ent.netcode = nitem.first;
ent.netname = m_board->GetNetInfo().GetNetItem( ent.netcode )->GetNetname();
ent.viaCount = 0;
ent.totalRoute = 0;
ent.totalVia = 0;
ent.totalPadToDie = 0;
ent.fromItem = nullptr;
ent.toItem = nullptr;
for( BOARD_CONNECTED_ITEM* citem : nitem.second )
{
if( citem->Type() == PCB_VIA_T )
{
ent.viaCount++;
ent.totalVia += computeViaThruLength( static_cast<VIA*>( citem ), nitem.second );
}
else if( citem->Type() == PCB_TRACE_T )
{
ent.totalRoute += static_cast<TRACK*>( citem )->GetLength();
}
else if ( citem->Type() == PCB_ARC_T )
{
ent.totalRoute += static_cast<ARC*>( citem )->GetLength();
}
else if( citem->Type() == PCB_PAD_T )
{
ent.totalPadToDie += static_cast<PAD*>( citem )->GetPadToDieLength();
}
}
ent.total = ent.totalRoute + ent.totalVia + ent.totalPadToDie;
ent.matchingRule = it.first;
// fixme: doesn't seem to work ;-)
auto ftPath = ftCache->QueryFromToPath( ent.items );
if( ftPath )
{
ent.from = ftPath->fromName;
ent.to = ftPath->toName;
}
else
{
ent.from = ent.to = _("<unconstrained>");
}
m_report.Add( ent );
matches[ it.first ].push_back(ent);
}
}
if( !aDelayReportMode )
{
for( auto it : matches )
{
DRC_RULE *rule = it.first;
auto& matchedConnections = it.second;
std::sort( matchedConnections.begin(), matchedConnections.end(),
[] ( const LENGTH_ENTRY&a, const LENGTH_ENTRY&b ) -> int
{
return a.netname < b.netname;
} );
reportAux( wxString::Format( "Length-constrained traces for rule '%s':",
it.first->m_Name ) );
for( auto& ent : matchedConnections )
{
reportAux(wxString::Format( " - net: %s, from: %s, to: %s, "
"%d matching items, "
"total: %s (tracks: %s, vias: %s, pad-to-die: %s), "
"vias: %d",
ent.netname,
ent.from,
ent.to,
(int) ent.items.size(),
MessageTextFromValue( userUnits(), ent.total ),
MessageTextFromValue( userUnits(), ent.totalRoute ),
MessageTextFromValue( userUnits(), ent.totalVia ),
MessageTextFromValue( userUnits(), ent.totalPadToDie ),
ent.viaCount ) );
}
OPT<DRC_CONSTRAINT> lengthConstraint = rule->FindConstraint( LENGTH_CONSTRAINT );
if( lengthConstraint )
checkLengthViolations( *lengthConstraint, matchedConnections );
OPT<DRC_CONSTRAINT> skewConstraint = rule->FindConstraint( SKEW_CONSTRAINT );
if( skewConstraint )
checkSkewViolations( *skewConstraint, matchedConnections );
OPT<DRC_CONSTRAINT> viaCountConstraint = rule->FindConstraint( VIA_COUNT_CONSTRAINT );
if( viaCountConstraint )
checkViaCountViolations( *viaCountConstraint, matchedConnections );
}
reportRuleStatistics();
}
return true;
}
std::set<DRC_CONSTRAINT_TYPE_T> DRC_TEST_PROVIDER_MATCHED_LENGTH::GetConstraintTypes() const
{
return { LENGTH_CONSTRAINT, SKEW_CONSTRAINT, VIA_COUNT_CONSTRAINT };
}
namespace detail
{
static DRC_REGISTER_TEST_PROVIDER<DRC_TEST_PROVIDER_MATCHED_LENGTH> dummy;
}