1 files changed, 204 insertions, 0 deletions
diff --git a/src/server/events/Connect.cpp b/src/server/events/Connect.cpp
new file mode 100644
index 00000000..e0f09a3d
--- /dev/null
+++ b/src/server/events/Connect.cpp
@@ -0,0 +1,204 @@
+/* This file is part of Ingen.
+ * Copyright 2007-2011 David Robillard <http://drobilla.net>
+ *
+ * Ingen 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 2 of the License, or (at your option) any later
+ * version.
+ *
+ * Ingen 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 details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string>
+#include <boost/format.hpp>
+#include "raul/Maid.hpp"
+#include "raul/Path.hpp"
+#include "ClientBroadcaster.hpp"
+#include "Connect.hpp"
+#include "ConnectionImpl.hpp"
+#include "DuplexPort.hpp"
+#include "Engine.hpp"
+#include "EngineStore.hpp"
+#include "InputPort.hpp"
+#include "OutputPort.hpp"
+#include "PatchImpl.hpp"
+#include "PortImpl.hpp"
+#include "ProcessContext.hpp"
+#include "Request.hpp"
+#include "types.hpp"
+
+using namespace std;
+using namespace Raul;
+
+namespace Ingen {
+namespace Server {
+namespace Events {
+
+Connect::Connect(Engine& engine, SharedPtr<Request> request, SampleCount timestamp, const Path& src_port_path, const Path& dst_port_path)
+	: QueuedEvent(engine, request, timestamp)
+	, _src_port_path(src_port_path)
+	, _dst_port_path(dst_port_path)
+	, _patch(NULL)
+	, _src_output_port(NULL)
+	, _dst_input_port(NULL)
+	, _compiled_patch(NULL)
+	, _port_listnode(NULL)
+	, _buffers(NULL)
+{
+}
+
+void
+Connect::pre_process()
+{
+	PortImpl* src_port = _engine.engine_store()->find_port(_src_port_path);
+	PortImpl* dst_port = _engine.engine_store()->find_port(_dst_port_path);
+	if (!src_port || !dst_port) {
+		_error = PORT_NOT_FOUND;
+		QueuedEvent::pre_process();
+		return;
+	}
+
+	_dst_input_port = dynamic_cast<InputPort*>(dst_port);
+	_src_output_port = dynamic_cast<OutputPort*>(src_port);
+	if (!_dst_input_port || !_src_output_port) {
+		_error = DIRECTION_MISMATCH;
+		QueuedEvent::pre_process();
+		return;
+	}
+
+	NodeImpl* const src_node = src_port->parent_node();
+	NodeImpl* const dst_node = dst_port->parent_node();
+	if (!src_node || !dst_node) {
+		_error = PARENTS_NOT_FOUND;
+		QueuedEvent::pre_process();
+		return;
+	}
+
+	if (src_node->parent() != dst_node->parent()
+			&& src_node != dst_node->parent()
+			&& src_node->parent() != dst_node) {
+		_error = PARENT_PATCH_DIFFERENT;
+		QueuedEvent::pre_process();
+		return;
+	}
+
+	if (!ConnectionImpl::can_connect(_src_output_port, _dst_input_port)) {
+		_error = TYPE_MISMATCH;
+		QueuedEvent::pre_process();
+		return;
+	}
+
+	// Connection to a patch port from inside the patch
+	if (src_node->parent_patch() != dst_node->parent_patch()) {
+		assert(src_node->parent() == dst_node || dst_node->parent() == src_node);
+		if (src_node->parent() == dst_node)
+			_patch = dynamic_cast<PatchImpl*>(dst_node);
+		else
+			_patch = dynamic_cast<PatchImpl*>(src_node);
+
+	// Connection from a patch input to a patch output (pass through)
+	} else if (src_node == dst_node && dynamic_cast<PatchImpl*>(src_node)) {
+		_patch = dynamic_cast<PatchImpl*>(src_node);
+
+	// Normal connection between nodes with the same parent
+	} else {
+		_patch = src_node->parent_patch();
+	}
+
+	if (_patch->has_connection(_src_output_port, _dst_input_port)) {
+		_error = ALREADY_CONNECTED;
+		QueuedEvent::pre_process();
+		return;
+	}
+
+	_connection = SharedPtr<ConnectionImpl>(
+			new ConnectionImpl(*_engine.buffer_factory(), _src_output_port, _dst_input_port));
+
+	_port_listnode = new InputPort::Connections::Node(_connection);
+
+	// Need to be careful about patch port connections here and adding a node's
+	// parent as a dependant/provider, or adding a patch as it's own provider...
+	if (src_node != dst_node && src_node->parent() == dst_node->parent()) {
+		dst_node->providers()->push_back(new Raul::List<NodeImpl*>::Node(src_node));
+		src_node->dependants()->push_back(new Raul::List<NodeImpl*>::Node(dst_node));
+	}
+
+	_patch->add_connection(_connection);
+	_dst_input_port->increment_num_connections();
+
+	/*if ((_dst_input_port->num_connections() == 1
+				&& (_connection->must_mix() || _connection->must_queue()))
+			|| _dst_input_port->num_connections() == 2) {*/
+		_buffers = new Raul::Array<BufferFactory::Ref>(_dst_input_port->poly());
+		_dst_input_port->get_buffers(*_engine.buffer_factory(),
+				_buffers, _dst_input_port->poly());
+	//}
+
+	if (_patch->enabled())
+		_compiled_patch = _patch->compile();
+
+	QueuedEvent::pre_process();
+}
+
+void
+Connect::execute(ProcessContext& context)
+{
+	QueuedEvent::execute(context);
+
+	if (_error == NO_ERROR) {
+		// This must be inserted here, since they're actually used by the audio thread
+		_dst_input_port->add_connection(_port_listnode);
+		assert(_buffers);
+		//if (_buffers)
+			_engine.maid()->push(_dst_input_port->set_buffers(_buffers));
+		//else
+		//	_dst_input_port->setup_buffers(*_engine.buffer_factory(), _dst_input_port->poly());
+		_dst_input_port->connect_buffers();
+		_engine.maid()->push(_patch->compiled_patch());
+		_patch->compiled_patch(_compiled_patch);
+	}
+}
+
+void
+Connect::post_process()
+{
+	std::ostringstream ss;
+	if (_error == NO_ERROR) {
+		_request->respond_ok();
+		_engine.broadcaster()->connect(_src_port_path, _dst_port_path);
+		return;
+	}
+
+	ss << boost::format("Unable to make connection %1% -> %2% (")
+		% _src_port_path.chop_scheme() % _dst_port_path.chop_scheme();
+
+	switch (_error) {
+	case PARENT_PATCH_DIFFERENT:
+		ss << "Ports have mismatched parents"; break;
+	case PORT_NOT_FOUND:
+		ss << "Port not found"; break;
+	case TYPE_MISMATCH:
+		ss << "Type mismatch"; break;
+	case DIRECTION_MISMATCH:
+		ss << "Direction mismatch"; break;
+	case ALREADY_CONNECTED:
+		ss << "Already connected"; break;
+	case PARENTS_NOT_FOUND:
+		ss << "Parents not found"; break;
+	default:
+		ss << "Unknown error";
+	}
+	ss << ")";
+	_request->respond_error(ss.str());
+}
+
+} // namespace Server
+} // namespace Ingen
+} // namespace Events
+