8 files changed, 59 insertions, 19 deletions

diff --git a/src/libs/engine/ConnectionImpl.cpp b/src/libs/engine/ConnectionImpl.cpp
index a6f573a8..d226b4dd 100644
--- a/src/libs/engine/ConnectionImpl.cpp
+++ b/src/libs/engine/ConnectionImpl.cpp
@@ -92,6 +92,8 @@ ConnectionImpl::set_buffer_size(size_t size)
 void
 ConnectionImpl::prepare_poly(uint32_t poly)
 {
+	_src_port->prepare_poly(poly);
+
 	if (type() == DataType::CONTROL || type() == DataType::AUDIO)
 		_must_mix = (poly > 1) && (
 				   (_src_port->poly() != _dst_port->poly())
@@ -110,6 +112,7 @@ ConnectionImpl::prepare_poly(uint32_t poly)
 void
 ConnectionImpl::apply_poly(Raul::Maid& maid, uint32_t poly)
 {
+	_src_port->apply_poly(maid, poly);
 	if (poly == 1 && _local_buffer && !_must_mix) {
 		maid.push(_local_buffer);
 		_local_buffer = NULL;
diff --git a/src/libs/engine/InputPort.cpp b/src/libs/engine/InputPort.cpp
index b778579d..cf5501ca 100644
--- a/src/libs/engine/InputPort.cpp
+++ b/src/libs/engine/InputPort.cpp
@@ -57,6 +57,19 @@ InputPort::set_buffer_size(size_t size)
 
 	
 bool
+InputPort::prepare_poly(uint32_t poly)
+{
+	PortImpl::prepare_poly(poly);
+
+	for (Connections::iterator c = _connections.begin(); c != _connections.end(); ++c)
+		((ConnectionImpl*)c->get())->prepare_poly(poly);
+
+	connect_buffers();
+	return true;
+}
+	
+
+bool
 InputPort::apply_poly(Raul::Maid& maid, uint32_t poly)
 {
 	if (!_polyphonic || !_parent->polyphonic())
@@ -65,7 +78,18 @@ InputPort::apply_poly(Raul::Maid& maid, uint32_t poly)
 	for (Connections::iterator c = _connections.begin(); c != _connections.end(); ++c)
 		((ConnectionImpl*)c->get())->apply_poly(maid, poly);
 
-	return PortImpl::apply_poly(maid, poly);
+	PortImpl::apply_poly(maid, poly);
+	assert(this->poly() == poly);
+		
+	if (_connections.size() == 1) {
+		ConnectionImpl* c = _connections.begin()->get();
+		for (uint32_t i=0; i < _poly; ++i)
+			_buffers->at(i)->join(c->buffer(i));
+	}
+		
+	connect_buffers();
+
+	return true;
 }
 
 
diff --git a/src/libs/engine/InputPort.hpp b/src/libs/engine/InputPort.hpp
index ffba2a30..2617882f 100644
--- a/src/libs/engine/InputPort.hpp
+++ b/src/libs/engine/InputPort.hpp
@@ -64,6 +64,7 @@ public:
 
 	const Connections& connections() { return _connections; }
 	
+	bool prepare_poly(uint32_t poly);
 	bool apply_poly(Raul::Maid& maid, uint32_t poly);
 
 	void pre_process(ProcessContext& context);
diff --git a/src/libs/engine/LADSPANode.cpp b/src/libs/engine/LADSPANode.cpp
index e922de7c..83c3d6af 100644
--- a/src/libs/engine/LADSPANode.cpp
+++ b/src/libs/engine/LADSPANode.cpp
@@ -99,9 +99,7 @@ LADSPANode::apply_poly(Raul::Maid& maid, uint32_t poly)
 	assert(poly <= _instances->size());
 	_polyphony = poly;
 	
-	NodeBase::apply_poly(maid, poly);
-
-	return true;
+	return NodeBase::apply_poly(maid, poly);
 }
 
 	
@@ -272,7 +270,7 @@ void
 LADSPANode::process(ProcessContext& context)
 {
 	NodeBase::pre_process(context);
-
+	
 	for (uint32_t i=0; i < _polyphony; ++i) 
 		_descriptor->run((*_instances)[i], context.nframes());
 	
diff --git a/src/libs/engine/LV2Node.cpp b/src/libs/engine/LV2Node.cpp
index 59d30c7e..974c5858 100644
--- a/src/libs/engine/LV2Node.cpp
+++ b/src/libs/engine/LV2Node.cpp
@@ -108,9 +108,7 @@ LV2Node::apply_poly(Raul::Maid& maid, uint32_t poly)
 	assert(poly <= _instances->size());
 	_polyphony = poly;
 	
-	NodeBase::apply_poly(maid, poly);
-
-	return true;
+	return NodeBase::apply_poly(maid, poly);
 }
 
 
diff --git a/src/libs/engine/NodeBase.cpp b/src/libs/engine/NodeBase.cpp
index a6bfa9ce..f8891f68 100644
--- a/src/libs/engine/NodeBase.cpp
+++ b/src/libs/engine/NodeBase.cpp
@@ -122,9 +122,14 @@ NodeBase::apply_poly(Raul::Maid& maid, uint32_t poly)
 	if (!_polyphonic)
 		return true;
 
-	if (_ports)
-		for (size_t i=0; i < _ports->size(); ++i)
-			_ports->at(i)->apply_poly(maid, poly);
+	for (size_t i=0; i < num_ports(); ++i) {
+		_ports->at(i)->apply_poly(maid, poly);
+		assert(_ports->at(i)->poly() == poly);
+	}
+	
+	for (uint32_t i=0; i < num_ports(); ++i)
+		for (uint32_t j=0; j < _polyphony; ++j)
+			set_port_buffer(j, i, _ports->at(i)->buffer(j));
 		
 	return true;
 }
@@ -202,9 +207,21 @@ NodeBase::pre_process(ProcessContext& context)
 	assert(ThreadManager::current_thread_id() == THREAD_PROCESS);
 
 	// Mix down any ports with multiple inputs
-	if (_ports)
-		for (size_t i=0; i < _ports->size(); ++i)
-			_ports->at(i)->pre_process(context);
+	for (size_t i=0; i < num_ports(); ++i)
+		_ports->at(i)->pre_process(context);
+	
+	// Connect port buffers (FIXME: NOT NECESSARY!)
+	if (polyphonic()) {
+		for (uint32_t i=0; i < _polyphony; ++i) {
+			for (uint32_t j=0; j < num_ports(); ++j) {
+				assert(_ports->at(j)->poly() == _polyphony);
+				set_port_buffer(i, j, _ports->at(j)->buffer(i));
+			}
+		}
+	} else {
+		for (uint32_t j=0; j < num_ports(); ++j)
+			set_port_buffer(0, j, _ports->at(j)->buffer(0));
+	}
 }
 
 
diff --git a/src/libs/engine/PatchImpl.cpp b/src/libs/engine/PatchImpl.cpp
index 2d33dd0d..aedaacbf 100644
--- a/src/libs/engine/PatchImpl.cpp
+++ b/src/libs/engine/PatchImpl.cpp
@@ -123,9 +123,6 @@ PatchImpl::apply_internal_poly(Raul::Maid& maid, uint32_t poly)
 	for (List<NodeImpl*>::iterator i = _nodes.begin(); i != _nodes.end(); ++i)
 		(*i)->apply_poly(maid, poly);
 	
-	for (Connections::iterator i = _connections.begin(); i != _connections.end(); ++i)
-		PtrCast<ConnectionImpl>(*i)->apply_poly(maid, poly);
-
 	_internal_poly = poly;
 	
 	return true;
diff --git a/src/libs/engine/PortImpl.cpp b/src/libs/engine/PortImpl.cpp
index 9061ffc5..9b609323 100644
--- a/src/libs/engine/PortImpl.cpp
+++ b/src/libs/engine/PortImpl.cpp
@@ -58,6 +58,8 @@ PortImpl::PortImpl(NodeImpl* const node,
 
 	if (node->parent() == NULL)
 		_polyphonic = false;
+	else
+		_polyphonic = true;
 	
 	if (type == DataType::EVENT)
 		_broadcast = true; // send activity blips
@@ -117,8 +119,8 @@ PortImpl::apply_poly(Raul::Maid& maid, uint32_t poly)
 	}
 
 	_poly = poly;
-
-	connect_buffers();
+	assert(_buffers->size() >= poly);
+	assert(this->poly() == poly);
 
 	return true;
 }