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-rw-r--r--src/engine/Action.hpp5
-rw-r--r--src/engine/Edge.hpp4
-rw-r--r--src/engine/Evolver.cpp67
-rw-r--r--src/engine/Machine.cpp12
-rw-r--r--src/engine/Mutation.cpp16
-rw-r--r--src/engine/Node.cpp18
-rw-r--r--src/engine/Node.hpp8
-rw-r--r--src/engine/Problem.cpp47
-rw-r--r--src/engine/Problem.hpp15
-rw-r--r--src/engine/machina/Evolver.hpp24
-rw-r--r--src/engine/machina/Machine.hpp9
-rw-r--r--src/engine/machina/Mutation.hpp26
-rw-r--r--src/gui/MachinaGUI.cpp16
13 files changed, 162 insertions, 105 deletions
diff --git a/src/engine/Action.hpp b/src/engine/Action.hpp
index 79b7fca..90f8664 100644
--- a/src/engine/Action.hpp
+++ b/src/engine/Action.hpp
@@ -34,7 +34,10 @@ namespace machina {
*/
struct Action
: public Raul::Maid::Manageable
- , public Stateful {
+ , public Stateful
+{
+ bool operator==(const Action& rhs) const { return false; }
+
virtual void execute(MIDISink* sink, Raul::TimeStamp time) = 0;
virtual void write_state(Sord::Model& model) {}
diff --git a/src/engine/Edge.hpp b/src/engine/Edge.hpp
index db91ca7..e2ddb98 100644
--- a/src/engine/Edge.hpp
+++ b/src/engine/Edge.hpp
@@ -18,7 +18,6 @@
#define MACHINA_EDGE_HPP
#include <list>
-#include <boost/utility.hpp>
#include "raul/DoubleBuffer.hpp"
@@ -31,8 +30,7 @@ namespace machina {
class Node;
-class Edge
- : public Stateful
+class Edge : public Stateful
{
public:
Edge(WPtr<Node> tail, SPtr<Node> head, float probability=1.0f)
diff --git a/src/engine/Evolver.cpp b/src/engine/Evolver.cpp
index eb697b6..906e888 100644
--- a/src/engine/Evolver.cpp
+++ b/src/engine/Evolver.cpp
@@ -26,8 +26,7 @@
#include "Problem.hpp"
using namespace std;
-using namespace Eugene;
-using namespace boost;
+using namespace eugene;
namespace machina {
@@ -37,39 +36,51 @@ Evolver::Evolver(TimeUnit unit,
: _problem(new Problem(unit, target_midi, seed))
, _seed_fitness(-FLT_MAX)
{
- SPtr<Eugene::HybridMutation<Machine> > m(new HybridMutation<Machine>());
+ SPtr<eugene::HybridMutation<Machine> > m(new HybridMutation<Machine>());
- m->append_mutation(1 / 6.0f, boost::shared_ptr< Eugene::Mutation<Machine> >(
- new Mutation::Compress()));
- m->append_mutation(1 / 6.0f, boost::shared_ptr< Eugene::Mutation<Machine> >(
- new Mutation::AddNode()));
- //m->append_mutation(1/6.0f, boost::shared_ptr< Eugene::Mutation<Machine> >(
+ m->append_mutation(1 / 6.0f, std::shared_ptr< eugene::Mutation<Machine> >(
+ new Mutation::Compress()));
+ m->append_mutation(1 / 6.0f, std::shared_ptr< eugene::Mutation<Machine> >(
+ new Mutation::AddNode()));
+ //m->append_mutation(1/6.0f, std::shared_ptr< eugene::Mutation<Machine> >(
// new Mutation::RemoveNode()));
- //m->append_mutation(1/6.0f, boost::shared_ptr< Eugene::Mutation<Machine> >(
+ //m->append_mutation(1/6.0f, std::shared_ptr< eugene::Mutation<Machine> >(
// new Mutation::AdjustNode()));
- m->append_mutation(1 / 6.0f, boost::shared_ptr< Eugene::Mutation<Machine> >(
- new Mutation::SwapNodes()));
- m->append_mutation(1 / 6.0f, boost::shared_ptr< Eugene::Mutation<Machine> >(
- new Mutation::AddEdge()));
- m->append_mutation(1 / 6.0f, boost::shared_ptr< Eugene::Mutation<Machine> >(
- new Mutation::RemoveEdge()));
- m->append_mutation(1 / 6.0f, boost::shared_ptr< Eugene::Mutation<Machine> >(
- new Mutation::AdjustEdge()));
-
- boost::shared_ptr< Selection<Machine> > s(new TournamentSelection<Machine>(
- _problem, 3, 0.8));
- boost::shared_ptr< Crossover<Machine> > crossover;
+ m->append_mutation(1 / 6.0f, std::shared_ptr< eugene::Mutation<Machine> >(
+ new Mutation::SwapNodes()));
+ m->append_mutation(1 / 6.0f, std::shared_ptr< eugene::Mutation<Machine> >(
+ new Mutation::AddEdge()));
+ m->append_mutation(1 / 6.0f, std::shared_ptr< eugene::Mutation<Machine> >(
+ new Mutation::RemoveEdge()));
+ m->append_mutation(1 / 6.0f, std::shared_ptr< eugene::Mutation<Machine> >(
+ new Mutation::AdjustEdge()));
+
+ std::shared_ptr< Selection<Machine> > s(
+ new TournamentSelection<Machine>(*_problem.get(), 3, 0.8));
+ std::shared_ptr< Crossover<Machine> > crossover;
+ size_t gene_length = 20; // FIXME
+ Problem::Population pop;
_ga = SPtr<MachinaGA>(
- new MachinaGA(_problem, s, crossover, m, 20, 20, 2, 1.0, 0.0));
+ new MachinaGA(_rng,
+ _problem,
+ s,
+ crossover,
+ m,
+ pop,
+ gene_length,
+ 20,
+ 2,
+ 1.0,
+ 0.0));
}
void
Evolver::seed(SPtr<Machine> parent)
{
/*_best = SPtr<Machine>(new Machine(*parent.get()));
- _best_fitness = _problem->fitness(*_best.get());*/
+ _best_fitness = _problem->fitness(*_best.get());*/
_problem->seed(parent);
- _seed_fitness = _problem->fitness(*parent.get());
+ _seed_fitness = _problem->evaluate(*parent.get());
}
void
@@ -89,10 +100,10 @@ Evolver::_run()
float new_best = _ga->best_fitness();
/*cout << _problem->fitness_less(old_best, *_ga->best().get()) << endl;
- cout << "best: " << _ga->best().get() << endl;
- cout << "best fitness: " << _problem->fitness(*_ga->best().get()) << endl;
- cout << "old best: " << old_best << endl;
- cout << "new best: " << new_best << endl;*/
+ cout << "best: " << _ga->best().get() << endl;
+ cout << "best fitness: " << _problem->fitness(*_ga->best().get()) << endl;
+ cout << "old best: " << old_best << endl;
+ cout << "new best: " << new_best << endl;*/
cout << "generation best: " << new_best << endl;
if (_problem->fitness_less_than(old_best, new_best)) {
diff --git a/src/engine/Machine.cpp b/src/engine/Machine.cpp
index 3cb85c1..155ef86 100644
--- a/src/engine/Machine.cpp
+++ b/src/engine/Machine.cpp
@@ -38,7 +38,8 @@ using namespace Raul;
namespace machina {
Machine::Machine(TimeUnit unit)
- : _initial_node(new Node(TimeStamp(unit, 0, 0), true))
+ : fitness(0.0)
+ , _initial_node(new Node(TimeStamp(unit, 0, 0), true))
, _active_nodes(MAX_ACTIVE_NODES, SPtr<Node>())
, _time(unit, 0, 0)
, _is_finished(false)
@@ -71,6 +72,7 @@ Machine::assign(const Machine& copy)
Machine::Machine(const Machine& copy)
: Stateful() // don't copy RDF ID
+ , fitness(0.0)
, _initial_node(new Node(TimeStamp(copy.time().unit(), 0, 0), true))
, _active_nodes(MAX_ACTIVE_NODES, SPtr<Node>())
, _time(copy.time())
@@ -87,6 +89,8 @@ Machine::operator=(const Machine& copy)
return *this;
}
+ fitness = copy.fitness;
+
_active_nodes = std::vector< SPtr<Node> >(MAX_ACTIVE_NODES, SPtr<Node>());
_is_finished = false;
_time = copy._time;
@@ -99,6 +103,12 @@ Machine::operator=(const Machine& copy)
return *this;
}
+bool
+Machine::operator==(const Machine& rhs) const
+{
+ return false;
+}
+
void
Machine::merge(const Machine& machine)
{
diff --git a/src/engine/Mutation.cpp b/src/engine/Mutation.cpp
index 878205d..776142d 100644
--- a/src/engine/Mutation.cpp
+++ b/src/engine/Mutation.cpp
@@ -30,7 +30,7 @@ namespace machina {
namespace Mutation {
void
-Compress::mutate(Machine& machine)
+Compress::mutate(Random& rng, Machine& machine)
{
//cout << "COMPRESS" << endl;
@@ -49,7 +49,7 @@ Compress::mutate(Machine& machine)
}
void
-AddNode::mutate(Machine& machine)
+AddNode::mutate(Random& rng, Machine& machine)
{
//cout << "ADD NODE" << endl;
@@ -88,7 +88,7 @@ AddNode::mutate(Machine& machine)
}
void
-RemoveNode::mutate(Machine& machine)
+RemoveNode::mutate(Random& rng, Machine& machine)
{
//cout << "REMOVE NODE" << endl;
@@ -99,7 +99,7 @@ RemoveNode::mutate(Machine& machine)
}
void
-AdjustNode::mutate(Machine& machine)
+AdjustNode::mutate(Random& rng, Machine& machine)
{
//cout << "ADJUST NODE" << endl;
@@ -119,7 +119,7 @@ AdjustNode::mutate(Machine& machine)
}
void
-SwapNodes::mutate(Machine& machine)
+SwapNodes::mutate(Random& rng, Machine& machine)
{
//cout << "SWAP NODE" << endl;
@@ -148,7 +148,7 @@ SwapNodes::mutate(Machine& machine)
}
void
-AddEdge::mutate(Machine& machine)
+AddEdge::mutate(Random& rng, Machine& machine)
{
//cout << "ADJUST EDGE" << endl;
@@ -164,7 +164,7 @@ AddEdge::mutate(Machine& machine)
}
void
-RemoveEdge::mutate(Machine& machine)
+RemoveEdge::mutate(Random& rng, Machine& machine)
{
//cout << "REMOVE EDGE" << endl;
@@ -175,7 +175,7 @@ RemoveEdge::mutate(Machine& machine)
}
void
-AdjustEdge::mutate(Machine& machine)
+AdjustEdge::mutate(Random& rng, Machine& machine)
{
//cout << "ADJUST EDGE" << endl;
diff --git a/src/engine/Node.cpp b/src/engine/Node.cpp
index 8ee92e7..cf326a1 100644
--- a/src/engine/Node.cpp
+++ b/src/engine/Node.cpp
@@ -57,6 +57,24 @@ Node::Node(const Node& copy)
}
}
+static inline bool
+action_equals(SPtr<const Action> a, SPtr<const Action> b)
+{
+ return (a == b) || (a && b && *a.get() == *b.get());
+}
+
+bool
+Node::operator==(const Node& rhs) const
+{
+ return _duration == rhs._duration &&
+ _is_initial == rhs._is_initial &&
+ _is_selector == rhs._is_selector &&
+ _is_active == rhs._is_active &&
+ action_equals(_enter_action, rhs.enter_action()) &&
+ action_equals(_exit_action, rhs.exit_action());
+ // TODO: compare edges
+}
+
/** Always returns an edge, unless there are none */
SPtr<Edge>
Node::random_edge()
diff --git a/src/engine/Node.hpp b/src/engine/Node.hpp
index 3b22d81..8a76bf7 100644
--- a/src/engine/Node.hpp
+++ b/src/engine/Node.hpp
@@ -47,11 +47,15 @@ public:
Node(TimeDuration duration, bool initial=false);
Node(const Node& copy);
+ bool operator==(const Node& rhs) const;
+
void set_enter_action(SPtr<Action> action);
void set_exit_action(SPtr<Action> action);
- SPtr<Action> enter_action() { return _enter_action; }
- SPtr<Action> exit_action() { return _exit_action; }
+ SPtr<const Action> enter_action() const { return _enter_action; }
+ SPtr<Action> enter_action() { return _enter_action; }
+ SPtr<const Action> exit_action() const { return _exit_action; }
+ SPtr<Action> exit_action() { return _exit_action; }
void enter(MIDISink* sink, TimeStamp time);
void exit(MIDISink* sink, TimeStamp time);
diff --git a/src/engine/Problem.cpp b/src/engine/Problem.cpp
index cbb360b..3b05fed 100644
--- a/src/engine/Problem.cpp
+++ b/src/engine/Problem.cpp
@@ -17,21 +17,23 @@
#define __STDC_LIMIT_MACROS 1
#include <stdint.h>
+
#include <set>
#include <vector>
#include <iostream>
+#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
+
#include "eugene/Problem.hpp"
-#include "machina/Edge.hpp"
#include "machina/Machine.hpp"
-#include "raul/SMFReader.hpp"
-#include "raul/midi_events.h"
-
-#include "machina_config.h"
#include "ActionFactory.hpp"
+#include "Edge.hpp"
+#include "MidiAction.hpp"
#include "Problem.hpp"
+#include "SMFReader.hpp"
+#include "machina_config.h"
using namespace std;
@@ -74,8 +76,9 @@ Problem::Problem(TimeUnit unit,
}
float
-Problem::fitness(const Machine& const_machine) const
+Problem::evaluate(const Machine& const_machine) const
{
+ #if 0
//cout << "(";
// kluuudge
@@ -89,8 +92,6 @@ Problem::fitness(const Machine& const_machine) const
SPtr<Evaluator> eval(new Evaluator(*this));
//machine.reset();
- machine.deactivate();
- machine.activate();
machine.set_sink(eval);
// FIXME: timing stuff here isn't right at all...
@@ -167,6 +168,8 @@ Problem::fitness(const Machine& const_machine) const
_fitness[&machine] = f;
return f;
+ #endif
+ return 0.0f;
}
void
@@ -174,7 +177,7 @@ Problem::Evaluator::write_event(Raul::TimeStamp time,
size_t ev_size,
const uint8_t* ev) throw (std::logic_error)
{
- if ((ev[0] & 0xF0) == MIDI_CMD_NOTE_ON) {
+ if ((ev[0] & 0xF0) == LV2_MIDI_MSG_NOTE_ON) {
const uint8_t note = ev[1];
@@ -197,9 +200,9 @@ Problem::Evaluator::write_event(Raul::TimeStamp time,
for (size_t i = 0; i < _read.length(); ++i) {
const string pattern = _read.substr(i);
- Patterns::iterator i = _patterns.find(pattern);
- if (i != _patterns.end()) {
- ++(i->second);
+ Patterns::iterator p = _patterns.find(pattern);
+ if (p != _patterns.end()) {
+ ++(p->second);
} else {
_patterns[pattern] = 1;
}
@@ -223,11 +226,12 @@ Problem::Evaluator::compute()
}*/
}
-boost::shared_ptr<Problem::Population>
-Problem::initial_population(size_t gene_size, size_t pop_size) const
+void
+Problem::initial_population(eugene::Random& rng,
+ Population& pop,
+ size_t gene_size,
+ size_t pop_size) const
{
- boost::shared_ptr<Population> ret(new std::vector<Machine>());
-
// FIXME: ignores _seed and builds based on MIDI
// evolution of the visible machine would be nice..
SPtr<Machine> base = SPtr<Machine>(new Machine(_unit));
@@ -247,20 +251,19 @@ Problem::initial_population(size_t gene_size, size_t pop_size) const
Machine m(*base.get());
set< SPtr<Node> > unreachable;
- SPtr<Node> initial;
for (Machine::Nodes::iterator i = m.nodes().begin(); i != m.nodes().end();
++i) {
if (dynamic_ptr_cast<MidiAction>((*i)->enter_action())->event()[1] ==
_target.first_note()) {
- (*i)->set_initial(true);
- initial = *i;
+ m.initial_node()->add_edge(
+ SPtr<Edge>(new Edge(m.initial_node(), *i)));
} else {
unreachable.insert(*i);
}
}
- SPtr<Node> cur = initial;
+ SPtr<Node> cur = m.initial_node();
unreachable.erase(cur);
SPtr<Node> head;
@@ -278,13 +281,11 @@ Problem::initial_population(size_t gene_size, size_t pop_size) const
}
}
- ret->push_back(m);
+ pop.push_back(m);
/*cout << "initial # nodes: " << m.nodes().size();
cout << "initial fitness: " << fitness(m) << endl;*/
}
-
- return ret;
}
/** levenshtein distance (edit distance) */
diff --git a/src/engine/Problem.hpp b/src/engine/Problem.hpp
index ced3675..81e67d7 100644
--- a/src/engine/Problem.hpp
+++ b/src/engine/Problem.hpp
@@ -17,7 +17,10 @@
#ifndef MACHINA_PROBLEM_HPP
#define MACHINA_PROBLEM_HPP
+#include <stdint.h>
+
#include <map>
+#include <stdexcept>
#include "machina/Machine.hpp"
#include "eugene/Problem.hpp"
@@ -26,7 +29,7 @@
namespace machina {
-class Problem : public Eugene::Problem<Machine> {
+class Problem : public eugene::Problem<Machine> {
public:
Problem(TimeUnit unit,
const std::string& target_midi,
@@ -35,14 +38,16 @@ public:
void seed(SPtr<Machine> parent) { _seed = parent; }
- float fitness(const Machine& machine) const;
+ float evaluate(const Machine& machine) const;
bool fitness_less_than(float a, float b) const { return a < b; }
void clear_fitness_cache() { _fitness.clear(); }
- boost::shared_ptr<Population>
- initial_population(size_t gene_size, size_t pop_size) const;
+ void initial_population(eugene::Random& rng,
+ Population& pop,
+ size_t gene_size,
+ size_t pop_size) const;
private:
size_t distance(const std::vector<uint8_t>& source,
@@ -83,7 +88,7 @@ private:
float _counts[128];
};*/
- struct Evaluator : public Raul::MIDISink {
+ struct Evaluator : public MIDISink {
explicit Evaluator(const Problem& problem)
: _problem(problem)
, _order(4)
diff --git a/src/engine/machina/Evolver.hpp b/src/engine/machina/Evolver.hpp
index 17fae05..e14fc4a 100644
--- a/src/engine/machina/Evolver.hpp
+++ b/src/engine/machina/Evolver.hpp
@@ -17,41 +17,41 @@
#ifndef MACHINA_EVOLVER_HPP
#define MACHINA_EVOLVER_HPP
-#include "eugene/GAImpl.hpp"
+#include "eugene/GA.hpp"
+#include "eugene/Random.hpp"
#include "machina/types.hpp"
#include "raul/Thread.hpp"
#include "raul/TimeStamp.hpp"
+#include "Machine.hpp"
#include "Schrodinbit.hpp"
-namespace Eugene {
-template<typename G>
-class HybridMutation;
+namespace eugene {
+template<typename G> class HybridMutation;
}
namespace machina {
-class Machine;
class Problem;
-class Evolver
- : public Raul::Thread
+class Evolver : public Raul::Thread
{
public:
- Evolver(Raul::TimeUnit unit,
- const string& target_midi,
- SPtr<Machine> seed);
+ Evolver(Raul::TimeUnit unit,
+ const std::string& target_midi,
+ SPtr<Machine> seed);
void seed(SPtr<Machine> parent);
bool improvement() { return _improvement; }
- SPtr<const Machine> best() { return _ga->best(); }
+ const Machine& best() { return _ga->best(); }
- typedef Eugene::GAImpl<Machine> MachinaGA;
+ typedef eugene::GA<Machine> MachinaGA;
private:
void _run();
+ eugene::Random _rng;
SPtr<MachinaGA> _ga;
SPtr<Problem> _problem;
float _seed_fitness;
diff --git a/src/engine/machina/Machine.hpp b/src/engine/machina/Machine.hpp
index a4d0262..cd94391 100644
--- a/src/engine/machina/Machine.hpp
+++ b/src/engine/machina/Machine.hpp
@@ -19,7 +19,6 @@
#include <vector>
#include <set>
-#include <boost/utility.hpp>
#include "machina/types.hpp"
#include "raul/Atom.hpp"
@@ -37,8 +36,7 @@ class LearnRequest;
/** A (Finite State) Machine.
*/
-class Machine
- : public Stateful
+class Machine : public Stateful
{
public:
explicit Machine(TimeUnit unit);
@@ -53,6 +51,8 @@ public:
/** Completely replace this machine's contents with a deep copy. */
Machine& operator=(const Machine& copy);
+ bool operator==(const Machine& rhs) const;
+
/** Merge another machine into this machine. */
void merge(const Machine& machine);
@@ -95,6 +95,8 @@ public:
SPtr<Node> random_node();
SPtr<Edge> random_edge();
+ float fitness; // For GA
+
private:
// Audio context
SPtr<Node> earliest_node() const;
@@ -117,6 +119,7 @@ private:
SPtr<LearnRequest> _pending_learn;
Nodes _nodes;
Raul::TimeStamp _time;
+
bool _is_finished;
};
diff --git a/src/engine/machina/Mutation.hpp b/src/engine/machina/Mutation.hpp
index d811a50..69f5ee4 100644
--- a/src/engine/machina/Mutation.hpp
+++ b/src/engine/machina/Mutation.hpp
@@ -21,13 +21,19 @@
#ifdef HAVE_EUGENE
# include "eugene/Mutation.hpp"
-# define SUPER : public Eugene::Mutation <Machine>
+# define SUPER : public eugene::Mutation<Machine>
#else
# define SUPER : public Mutation
#endif
namespace machina {
+#ifdef HAVE_EUGENE
+typedef eugene::Random Random;
+#else
+struct Random {};
+#endif
+
class Machine;
namespace Mutation {
@@ -35,17 +41,17 @@ namespace Mutation {
struct Mutation {
virtual ~Mutation() {}
- virtual void mutate(Machine& machine) = 0;
+ virtual void mutate(Random& rng, Machine& machine) = 0;
};
-struct Compress SUPER { void mutate(Machine& machine); };
-struct AddNode SUPER { void mutate(Machine& machine); };
-struct RemoveNode SUPER { void mutate(Machine& machine); };
-struct AdjustNode SUPER { void mutate(Machine& machine); };
-struct SwapNodes SUPER { void mutate(Machine& machine); };
-struct AddEdge SUPER { void mutate(Machine& machine); };
-struct RemoveEdge SUPER { void mutate(Machine& machine); };
-struct AdjustEdge SUPER { void mutate(Machine& machine); };
+struct Compress SUPER { void mutate(Random& rng, Machine& machine); };
+struct AddNode SUPER { void mutate(Random& rng, Machine& machine); };
+struct RemoveNode SUPER { void mutate(Random& rng, Machine& machine); };
+struct AdjustNode SUPER { void mutate(Random& rng, Machine& machine); };
+struct SwapNodes SUPER { void mutate(Random& rng, Machine& machine); };
+struct AddEdge SUPER { void mutate(Random& rng, Machine& machine); };
+struct RemoveEdge SUPER { void mutate(Random& rng, Machine& machine); };
+struct AdjustEdge SUPER { void mutate(Random& rng, Machine& machine); };
} // namespace Mutation
diff --git a/src/gui/MachinaGUI.cpp b/src/gui/MachinaGUI.cpp
index 5044dcb..4f26c66 100644
--- a/src/gui/MachinaGUI.cpp
+++ b/src/gui/MachinaGUI.cpp
@@ -222,11 +222,10 @@ MachinaGUI::~MachinaGUI()
bool
MachinaGUI::evolve_callback()
{
- if (_evolve) {
- if (_evolver->improvement()) {
- //_engine->driver()->set_machine(_evolver->best());
- _canvas->build(_evolver->best(), _menu_view_labels->get_active());
- }
+ if (_evolve && _evolver->improvement()) {
+ _engine->driver()->set_machine(
+ SPtr<Machine>(new Machine(_evolver->best())));
+ _controller->announce(_engine->machine());
}
return true;
@@ -316,13 +315,12 @@ MachinaGUI::evolve_toggled()
_engine->driver()->set_machine(SPtr<Machine>());
_evolver->start();
} else {
- _evolver->stop();
+ _evolver->join();
_evolve = false;
SPtr<Machine> new_machine = SPtr<Machine>(
- new Machine(*_evolver->best()));
+ new Machine(_evolver->best()));
_engine->driver()->set_machine(new_machine);
- _canvas->build(new_machine, _menu_view_labels->get_active());
- new_machine->activate();
+ _controller->announce(_engine->machine());
_engine->driver()->activate();
}
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-23 17:59:28 +0000