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diff --git a/src/libs/engine/DSSINode.hpp b/src/libs/engine/DSSINode.hpp
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+++ b/src/libs/engine/DSSINode.hpp
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+/* This file is part of Ingen.
+ * Copyright (C) 2007 Dave 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
+ */
+
+#ifndef DSSINODE_H
+#define DSSINODE_H
+
+#include <alsa/asoundlib.h>
+#include <dssi.h>
+#include <lo/lo.h>
+#include "LADSPANode.hpp"
+#include "MidiBuffer.hpp"
+
+namespace Ingen {
+
+class InputPort;
+namespace Shared {
+	class ClientInterface;
+} using Shared::ClientInterface;
+
+
+/** An instance of a DSSI plugin.
+ */
+class DSSINode : public LADSPANode
+{
+public:
+
+	typedef std::map<int, string> Bank;
+	
+	DSSINode(const Plugin* plugin, const string& name, size_t poly, Patch* parent, DSSI_Descriptor* descriptor, SampleRate srate, size_t buffer_size);
+	~DSSINode();
+	
+	bool instantiate();
+
+	void activate();
+
+	void set_ui_url(const string& url);
+	void send_update();
+
+	void set_control(size_t port_num, Sample val);
+	void configure(const string& key, const string& val);
+	void program(int bank, int program);
+
+	void process(SampleCount nframes, FrameTime start, FrameTime end);
+	
+	void set_port_buffer(size_t voice, size_t port_num, Buffer* buf);
+	
+	bool update_programs(bool send_events);
+	void set_default_program();
+	const std::map<int, Bank>& get_programs() const;
+
+	const Plugin* plugin() const        { return _plugin; }
+	void plugin(const Plugin* const pi) { _plugin = pi; }
+
+private:
+	bool has_midi_input() const;
+	
+	// DSSI GUI messages
+	void send_control(int port_num, float value);
+	void send_program(int bank, int value);
+	void send_configure(const std::string& key, const std::string& val);
+	void send_show();
+	void send_hide();
+	void send_quit();
+	
+	// Conversion to ALSA MIDI events
+	void convert_events(SampleCount nframes);
+	
+	
+	DSSI_Descriptor* _dssi_descriptor;
+	
+	std::string _ui_url;
+	std::string _ui_base_path;
+	lo_address  _ui_addr;
+
+	// Current values
+	int                                _bank;
+	int                                _program;
+	std::map<std::string, std::string> _configures;
+	std::map<int, Bank>                _banks;
+
+	InputPort*        _midi_in_port;
+	MidiBuffer*       _midi_in_buffer;
+ 	snd_seq_event_t*  _alsa_events;
+ 	unsigned long     _encoded_events;
+ 	snd_midi_event_t* _alsa_encoder;
+};
+
+
+} // namespace Ingen
+
+
+#endif // DSSINODE_H
+