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			328 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
			
		
		
	
	
			328 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
| # This package loads all the non-GUI Slic3r perl packages.
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| # In addition, it implements utility functions for file handling and threading.
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| 
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| package Slic3r;
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| 
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| # Copyright holder: Alessandro Ranellucci
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| # This application is licensed under the GNU Affero General Public License, version 3
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| 
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| use strict;
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| use warnings;
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| use Config;
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| require v5.10;
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| 
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| our $VERSION = VERSION();
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| our $BUILD = BUILD();
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| our $FORK_NAME = FORK_NAME();
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| 
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| our $debug = 0;
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| sub debugf {
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|     printf @_ if $debug;
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| }
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| 
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| our $loglevel = 0;
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| 
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| # load threads before Moo as required by it
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| our $have_threads;
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| BEGIN {
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|     # Test, whether the perl was compiled with ithreads support and ithreads actually work.
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|     use Config;
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|     $have_threads = $Config{useithreads} && eval "use threads; use threads::shared; use Thread::Queue; 1";
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|     warn "threads.pm >= 1.96 is required, please update\n" if $have_threads && $threads::VERSION < 1.96;
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|     
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|     ### temporarily disable threads if using the broken Moo version
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|     use Moo;
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|     $have_threads = 0 if $Moo::VERSION == 1.003000;
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| 
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|     # Disable multi threading completely by an environment value.
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|     # This is useful for debugging as the Perl debugger does not work
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|     # in multi-threaded context at all.
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|     # A good interactive perl debugger is the ActiveState Komodo IDE
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|     # or the EPIC http://www.epic-ide.org/
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|     $have_threads = 0 if (defined($ENV{'SLIC3R_SINGLETHREADED'}) && $ENV{'SLIC3R_SINGLETHREADED'} == 1);
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|     print "Threading disabled\n" if !$have_threads;
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| 
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|     $debug = 1 if (defined($ENV{'SLIC3R_DEBUGOUT'}) && $ENV{'SLIC3R_DEBUGOUT'} == 1);
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|     print "Debugging output enabled\n" if $debug;
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| }
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| 
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| warn "Running Slic3r under Perl 5.16 is neither supported nor recommended\n"
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|     if $^V == v5.16;
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| 
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| use FindBin;
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| # Path to the images.
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| our $var = sub { decode_path($FindBin::Bin) . "/var/" . $_[0] };
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| 
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| use Moo 1.003001;
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| 
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| use Slic3r::XS;   # import all symbols (constants etc.) before they get parsed
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| use Slic3r::Config;
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| use Slic3r::ExPolygon;
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| use Slic3r::ExtrusionLoop;
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| use Slic3r::ExtrusionPath;
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| use Slic3r::Flow;
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| use Slic3r::GCode::Reader;
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| use Slic3r::Geometry qw(PI);
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| use Slic3r::Geometry::Clipper;
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| use Slic3r::Layer;
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| use Slic3r::Line;
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| use Slic3r::Model;
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| use Slic3r::Point;
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| use Slic3r::Polygon;
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| use Slic3r::Polyline;
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| use Slic3r::Print;
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| use Slic3r::Print::Object;
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| use Slic3r::Print::Simple;
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| use Slic3r::Surface;
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| our $build = eval "use Slic3r::Build; 1";
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| use Thread::Semaphore;
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| use Encode::Locale 1.05;
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| use Encode;
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| use Unicode::Normalize;
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| 
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| # Scaling between the float and integer coordinates.
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| # Floats are in mm.
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| use constant SCALING_FACTOR         => 0.000001;
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| use constant LOOP_CLIPPING_LENGTH_OVER_NOZZLE_DIAMETER => 0.15;
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| 
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| # Following constants are used by the infill algorithms and integration tests.
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| # Resolution to simplify perimeters to. These constants are now used in C++ code only. Better to publish them to Perl from the C++ code.
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| # use constant RESOLUTION             => 0.0125;
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| # use constant SCALED_RESOLUTION      => RESOLUTION / SCALING_FACTOR;
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| use constant INFILL_OVERLAP_OVER_SPACING  => 0.3;
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| 
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| # Keep track of threads we created. Perl worker threads shall not create further threads.
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| my @threads = ();
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| my $pause_sema = Thread::Semaphore->new;
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| my $paused = 0;
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| 
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| # Set the logging level at the Slic3r XS module.
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| $Slic3r::loglevel = (defined($ENV{'SLIC3R_LOGLEVEL'}) && $ENV{'SLIC3R_LOGLEVEL'} =~ /^[1-9]/) ? $ENV{'SLIC3R_LOGLEVEL'} : 0;
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| set_logging_level($Slic3r::loglevel);
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| 
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| sub spawn_thread {
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|     my ($cb) = @_;
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|     @_ = ();
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|     my $thread = threads->create(sub {
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|         Slic3r::debugf "Starting thread %d...\n", threads->tid;
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|         local $SIG{'KILL'} = sub {
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|             Slic3r::debugf "Exiting thread %d...\n", threads->tid;
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|             Slic3r::thread_cleanup();
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|             threads->exit();
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|         };
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|         local $SIG{'STOP'} = sub {
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|             $pause_sema->down;
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|             $pause_sema->up;
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|         };
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|         $cb->();
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|     });
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|     push @threads, $thread->tid;
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|     return $thread;
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| }
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| 
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| # call this at the very end of each thread (except the main one)
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| # so that it does not try to free existing objects.
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| # at that stage, existing objects are only those that we 
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| # inherited at the thread creation (thus shared) and those 
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| # that we are returning: destruction will be handled by the
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| # main thread in both cases.
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| # reminder: do not destroy inherited objects in other threads,
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| # as the main thread will still try to destroy them when they
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| # go out of scope; in other words, if you're undef()'ing an 
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| # object in a thread, make sure the main thread still holds a
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| # reference so that it won't be destroyed in thread.
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| sub thread_cleanup {
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|     # prevent destruction of shared objects
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|     no warnings 'redefine';
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|     *Slic3r::BridgeDetector::DESTROY        = sub {};
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|     *Slic3r::Config::DESTROY                = sub {};
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|     *Slic3r::Config::Full::DESTROY          = sub {};
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|     *Slic3r::Config::GCode::DESTROY         = sub {};
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|     *Slic3r::Config::Print::DESTROY         = sub {};
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|     *Slic3r::Config::PrintObject::DESTROY   = sub {};
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|     *Slic3r::Config::PrintRegion::DESTROY   = sub {};
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|     *Slic3r::Config::Static::DESTROY        = sub {};
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|     *Slic3r::ExPolygon::DESTROY             = sub {};
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|     *Slic3r::ExPolygon::Collection::DESTROY = sub {};
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|     *Slic3r::Extruder::DESTROY              = sub {};
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|     *Slic3r::ExtrusionLoop::DESTROY         = sub {};
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|     *Slic3r::ExtrusionMultiPath::DESTROY    = sub {};
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|     *Slic3r::ExtrusionPath::DESTROY         = sub {};
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|     *Slic3r::ExtrusionPath::Collection::DESTROY = sub {};
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|     *Slic3r::ExtrusionSimulator::DESTROY    = sub {};
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|     *Slic3r::Flow::DESTROY                  = sub {};
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|     *Slic3r::GCode::DESTROY                 = sub {};
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|     *Slic3r::GCode::PlaceholderParser::DESTROY = sub {};
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|     *Slic3r::GCode::Sender::DESTROY         = sub {};
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|     *Slic3r::GCode::Writer::DESTROY         = sub {};
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|     *Slic3r::Geometry::BoundingBox::DESTROY = sub {};
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|     *Slic3r::Geometry::BoundingBoxf::DESTROY = sub {};
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|     *Slic3r::Geometry::BoundingBoxf3::DESTROY = sub {};
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|     *Slic3r::Layer::PerimeterGenerator::DESTROY = sub {};
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|     *Slic3r::Line::DESTROY                  = sub {};
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|     *Slic3r::Linef3::DESTROY                = sub {};
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|     *Slic3r::Model::DESTROY                 = sub {};
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|     *Slic3r::Model::Object::DESTROY         = sub {};
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|     *Slic3r::Point::DESTROY                 = sub {};
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|     *Slic3r::Pointf::DESTROY                = sub {};
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|     *Slic3r::Pointf3::DESTROY               = sub {};
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|     *Slic3r::Polygon::DESTROY               = sub {};
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|     *Slic3r::Polyline::DESTROY              = sub {};
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|     *Slic3r::Polyline::Collection::DESTROY  = sub {};
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|     *Slic3r::Print::DESTROY                 = sub {};
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|     *Slic3r::Print::Object::DESTROY         = sub {};
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|     *Slic3r::Print::Region::DESTROY         = sub {};
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|     *Slic3r::Surface::DESTROY               = sub {};
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|     *Slic3r::Surface::Collection::DESTROY   = sub {};
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|     *Slic3r::Print::SupportMaterial2::DESTROY = sub {};
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|     *Slic3r::TriangleMesh::DESTROY          = sub {};
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|     return undef;  # this prevents a "Scalars leaked" warning
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| }
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| 
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| sub _get_running_threads {
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|     return grep defined($_), map threads->object($_), @threads;
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| }
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| 
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| sub kill_all_threads {
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|     # Send SIGKILL to all the running threads to let them die.
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|     foreach my $thread (_get_running_threads) {
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|         Slic3r::debugf "Thread %d killing %d...\n", threads->tid, $thread->tid;
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|         $thread->kill('KILL');
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|     }
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|     # unlock semaphore before we block on wait
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|     # otherwise we'd get a deadlock if threads were paused
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|     resume_all_threads();
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|     # in any thread we wait for our children
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|     foreach my $thread (_get_running_threads) {
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|         Slic3r::debugf "  Thread %d waiting for %d...\n", threads->tid, $thread->tid;
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|         $thread->join;  # block until threads are killed
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|         Slic3r::debugf "    Thread %d finished waiting for %d...\n", threads->tid, $thread->tid;
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|     }
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|     @threads = ();
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| }
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| 
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| sub pause_all_threads {
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|     return if $paused;
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|     $paused = 1;
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|     $pause_sema->down;
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|     $_->kill('STOP') for _get_running_threads;
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| }
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| 
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| sub resume_all_threads {
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|     return unless $paused;
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|     $paused = 0;
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|     $pause_sema->up;
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| }
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| 
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| # Convert a Unicode path to a file system locale.
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| # The encoding is (from Encode::Locale POD):
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| # Alias       | Windows | Mac OS X     | POSIX
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| # locale_fs   | ANSI    | UTF-8        | nl_langinfo
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| # where nl_langinfo is en-US.UTF-8 on a modern Linux as well.
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| # So this conversion seems to make the most sense on Windows.
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| sub encode_path {
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|     my ($path) = @_;
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| 
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|     # UTF8 encoding is not unique. Normalize the UTF8 string to make the file names unique.
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|     # Unicode::Normalize::NFC() returns the Normalization Form C (formed by canonical decomposition followed by canonical composition).
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|     $path = Unicode::Normalize::NFC($path);
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|     $path = Encode::encode(locale_fs => $path);
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|     
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|     return $path;
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| }
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| 
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| # Convert a path coded by a file system locale to Unicode.
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| sub decode_path {
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|     my ($path) = @_;
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|     
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|     $path = Encode::decode(locale_fs => $path)
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|         unless utf8::is_utf8($path);
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|     
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|     # The filesystem might force a normalization form (like HFS+ does) so 
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|     # if we rely on the filename being comparable after the open() + readdir()
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|     # roundtrip (like when creating and then selecting a preset), we need to 
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|     # restore our normalization form.
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|     $path = Unicode::Normalize::NFC($path);
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|     
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|     return $path;
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| }
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| 
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| # Open a file by converting $filename to local file system locales.
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| sub open {
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|     my ($fh, $mode, $filename) = @_;
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|     return CORE::open $$fh, $mode, encode_path($filename);
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| }
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| 
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| sub tags {
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|     my ($format) = @_;
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|     $format //= '';
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|     my %tags;
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|     # End of line
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|     $tags{eol}     = ($format eq 'html') ? '<br>'   : "\n";
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|     # Heading
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|     $tags{h2start} = ($format eq 'html') ? '<b>'   : '';
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|     $tags{h2end}   = ($format eq 'html') ? '</b>'  : '';
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|     # Bold font
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|     $tags{bstart}  = ($format eq 'html') ? '<b>'    : '';
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|     $tags{bend}    = ($format eq 'html') ? '</b>'   : '';
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|     # Verbatim
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|     $tags{vstart}  = ($format eq 'html') ? '<pre>'  : '';
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|     $tags{vend}    = ($format eq 'html') ? '</pre>' : '';
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|     return %tags;
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| }
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| 
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| sub slic3r_info
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| {
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|     my (%params) = @_;
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|     my %tag = Slic3r::tags($params{format});
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|     my $out = '';
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|     $out .= "$tag{bstart}$Slic3r::FORK_NAME$tag{bend}$tag{eol}";
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|     $out .= "$tag{bstart}Version: $tag{bend}$Slic3r::VERSION$tag{eol}";
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|     $out .= "$tag{bstart}Build:   $tag{bend}$Slic3r::BUILD$tag{eol}";
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|     return $out;
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| }
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| 
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| sub copyright_info
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| {
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|     my (%params) = @_;
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|     my %tag = Slic3r::tags($params{format});
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|     my $out =
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|         'Copyright © 2016 Vojtech Bubnik, Prusa Research. <br />' .
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|         'Copyright © 2011-2016 Alessandro Ranellucci. <br />' .
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|         '<a href="http://slic3r.org/">Slic3r</a> is licensed under the ' .
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|         '<a href="http://www.gnu.org/licenses/agpl-3.0.html">GNU Affero General Public License, version 3</a>.' .
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|         '<br /><br /><br />' .
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|         'Contributions by Henrik Brix Andersen, Nicolas Dandrimont, Mark Hindess, Petr Ledvina, Y. Sapir, Mike Sheldrake and numerous others. ' .
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|         'Manual by Gary Hodgson. Inspired by the RepRap community. <br />' .
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|         'Slic3r logo designed by Corey Daniels, <a href="http://www.famfamfam.com/lab/icons/silk/">Silk Icon Set</a> designed by Mark James. ';
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|     return $out;
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| }
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| 
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| sub system_info
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| {
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|     my (%params) = @_;
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|     my %tag = Slic3r::tags($params{format});
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| 
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|     my $out = '';
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|     $out .= "$tag{bstart}Operating System:    $tag{bend}$Config{osname}$tag{eol}";
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|     $out .= "$tag{bstart}System Architecture: $tag{bend}$Config{archname}$tag{eol}";        
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|     if ($^O eq 'MSWin32') {
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|         $out .= "$tag{bstart}Windows Version: $tag{bend}" . `ver` . $tag{eol};
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|     } else {
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|         # Hopefully some kind of unix / linux.
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|         $out .= "$tag{bstart}System Version: $tag{bend}" . `uname -a` . $tag{eol};
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|     }
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|     $out .= $tag{vstart} . Config::myconfig . $tag{vend};
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|     $out .= "  $tag{bstart}\@INC:$tag{bend}$tag{eol}$tag{vstart}";
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|     foreach my $i (@INC) {
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|         $out .= "    $i\n";
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|     }
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|     $out .= "$tag{vend}";
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|     return $out;
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| }
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| 
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| # this package declaration prevents an ugly fatal warning to be emitted when
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| # spawning a new thread
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| package GLUquadricObjPtr;
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| 
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| 1;
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