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Zone Fill performance enhancement 

Don't wait until all zones are filled before tesselating fills.
Tesselation happens on a layer-by-layer basis, so once the zones' layers
are filled, we can tesselate them in parallel with the remaining fill
work
This commit is contained in:
Seth Hillbrand 2022-09-19 11:53:50 -07:00
parent 0295090135
commit 9b4eb91f12
1 changed files with 22 additions and 9 deletions
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31
pcbnew/zone_filler.cpp
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@ -264,24 +264,37 @@ bool ZONE_FILLER::Fill( std::vector<ZONE*>& aZones, bool aCheck, wxWindow* aPare
return 1;
};
auto tesselate_lambda =
[&]( std::pair<ZONE*, PCB_LAYER_ID> aFillItem ) -> int
{
PCB_LAYER_ID layer = aFillItem.second;
ZONE* zone = aFillItem.first;
zone->CacheTriangulation( layer );
return 1;
};
// Calculate the copper fills (NB: this is multi-threaded)
//
std::vector<std::pair<std::future<int>, bool>> returns;
std::vector<std::pair<std::future<int>, int>> returns;
returns.reserve( toFill.size() );
size_t finished = 0;
thread_pool& tp = GetKiCadThreadPool();
for( const std::pair<ZONE*, PCB_LAYER_ID>& fillItem : toFill )
returns.emplace_back( std::make_pair( tp.submit( fill_lambda, fillItem ), false ) );
returns.emplace_back( std::make_pair( tp.submit( fill_lambda, fillItem ), 0 ) );
while( finished != toFill.size() )
while( finished != 2 * toFill.size() )
{
for( size_t ii = 0; ii < returns.size(); ++ii )
{
auto& ret = returns[ii];
if( ret.second )
if( ret.second > 1 )
continue;
std::future_status status = ret.first.wait_for( std::chrono::seconds( 0 ) );
@ -291,7 +304,11 @@ bool ZONE_FILLER::Fill( std::vector<ZONE*>& aZones, bool aCheck, wxWindow* aPare
if( ret.first.get() )
{
++finished;
ret.second = true;
if( ret.second == 0 )
returns[ii].first = tp.submit( tesselate_lambda, toFill[ii] );
ret.second++;
}
else
{
@ -312,10 +329,6 @@ bool ZONE_FILLER::Fill( std::vector<ZONE*>& aZones, bool aCheck, wxWindow* aPare
}
}
// Triangulate the copper fills (NB: this is multi-threaded)
//
m_board->CacheTriangulation( m_progressReporter, aZones );
// Now update the connectivity to check for isolated copper islands
// (NB: FindIsolatedCopperIslands() is multi-threaded)
//