Remove deprecated Om patch loading code (resolve ticket #32).

Om patch loading is better achieved with a script than trying to maintain this functionality in ingen (and the associated dead code maintenance and protocol headaches).


git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@2984 a436a847-0d15-0410-975c-d299462d15a1

12 files changed, 26 insertions, 858 deletions

diff --git a/src/client/DeprecatedLoader.cpp b/src/client/DeprecatedLoader.cpp
deleted file mode 100644
index a1e76314..00000000
--- a/src/client/DeprecatedLoader.cpp
+++ /dev/null
@@ -1,706 +0,0 @@
-/* This file is part of Ingen.
- * Copyright (C) 2007-2009 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 <fstream>
-#include <vector>
-#include <algorithm>
-#include <utility> // for pair, make_pair
-#include <cassert>
-#include <cstring>
-#include <string>
-#include <cstdlib>  // for atof
-#include <cmath>
-#include <libxml/parser.h>
-#include <libxml/tree.h>
-#include <libxml/xpath.h>
-#include <glibmm/miscutils.h>
-#include "raul/log.hpp"
-#include "raul/Path.hpp"
-#include "shared/LV2URIMap.hpp"
-#include "interface/EngineInterface.hpp"
-#include "DeprecatedLoader.hpp"
-
-#define LOG(s) s << "[DeprecatedLoader] "
-
-#define NS_INTERNALS "http://drobilla.net/ns/ingen-internals#"
-
-using namespace std;
-using namespace Raul;
-
-namespace Ingen {
-using namespace Shared;
-namespace Client {
-
-
-/** A single port's control setting (in a preset).
- *
- * \ingroup IngenClient
- */
-class ControlModel
-{
-public:
-	ControlModel(const Path& port_path, float value)
-		: _port_path(port_path)
-		, _value(value)
-	{
-		assert(_port_path.find("//") == string::npos);
-	}
-
-	const Path& port_path() const          { return _port_path; }
-	void              port_path(const string& p) { _port_path = p; }
-	float             value() const              { return _value; }
-	void              value(float v)             { _value = v; }
-
-private:
-	Path _port_path;
-	float      _value;
-};
-
-
-/** Model of a preset (a collection of control settings).
- *
- * \ingroup IngenClient
- */
-class PresetModel
-{
-public:
-	PresetModel(const string& base_path) : _base_path(base_path) {}
-
-	/** Add a control value to this preset.  An empty string for a node_name
-	 * means the port is on the patch itself (not a node in the patch). */
-	void add_control(const string& node_name, string port_name, float value) {
-		if (port_name == "note_number") // FIXME: filthy kludge
-			port_name = "note";
-
-		if (!node_name.empty())
-			_controls.push_back(ControlModel(_base_path + node_name +"/"+ port_name, value));
-		else
-			_controls.push_back(ControlModel(_base_path + port_name, value));
-	}
-
-	const string& name() const          { return _name; }
-	void          name(const string& n) { _name = n; }
-
-	const list<ControlModel>& controls() const { return _controls; }
-
-private:
-	string             _name;
-	string             _base_path;
-	list<ControlModel> _controls;
-};
-
-
-string
-DeprecatedLoader::nameify_if_invalid(const string& name)
-{
-	if (Path::is_valid_name(name)) {
-		return name;
-	} else {
-		const string new_name = Path::nameify(name);
-		assert(Path::is_valid_name(new_name));
-		return new_name;
-	}
-}
-
-
-string
-DeprecatedLoader::translate_load_path(const string& path)
-{
-	std::map<string,string>::iterator t = _load_path_translations.find(path);
-
-	if (t != _load_path_translations.end()) {
-		assert(Path::is_valid((*t).second));
-		return (*t).second;
-	} else {
-		return path;
-	}
-}
-
-
-/** Add a piece of data to a Properties, translating from deprecated unqualified keys
- *
- * Adds a namespace prefix for known keys, and ignores the rest.
- */
-void
-DeprecatedLoader::add_variable(GraphObject::Properties& data, string old_key, string value)
-{
-	string key;
-	if (old_key == "module-x")
-		key = "http://drobilla.net/ns/ingenuity#canvas-x";
-	else if (old_key == "module-y")
-		key = "http://drobilla.net/ns/ingenuity#canvas-y";
-
-	if (!key.empty()) {
-		// FIXME: should this overwrite existing values?
-		if (data.find(key) == data.end()) {
-			// Hack to make module-x and module-y set as floats
-			char* c_val = strdup(value.c_str());
-			char* endptr = NULL;
-
-			// FIXME: locale kludges
-			char* locale = strdup(setlocale(LC_NUMERIC, NULL));
-
-			float fval = strtof(c_val, &endptr);
-
-			setlocale(LC_NUMERIC, locale);
-			free(locale);
-
-			if (endptr != c_val && *endptr == '\0')
-				data.insert(make_pair(key, Atom(fval)));
-			else
-				data.insert(make_pair(key, value));
-
-			free(c_val);
-		}
-	}
-}
-
-
-/** Load a patch in to the engine (and client) from a patch file.
- *
- * The name and poly from the passed PatchModel are used.  If the name is
- * the empty string, the name will be loaded from the file.  If the poly
- * is 0, it will be loaded from file.  Otherwise the given values will
- * be used.
- *
- * @param filename Local name of file to load patch from
- *
- * @param parent_path Patch to load this patch as a child of (empty string to load
- * to the root patch)
- *
- * @param name Name of this patch (loaded/generated if the empty string)
- *
- * @param initial_data will be set last, so values passed there will override
- * any values loaded from the patch file.
- *
- * @param existing If true, the patch will be loaded into a currently
- * existing patch (ie a merging will take place).  Errors will result
- * if Nodes of conflicting names exist.
- *
- * Returns the path of the newly created patch.
- */
-string
-DeprecatedLoader::load_patch(const Glib::ustring&    filename,
-                             bool                    merge,
-                             boost::optional<Path>   parent_path,
-                             boost::optional<Symbol> name,
-                             GraphObject::Properties initial_data,
-                             bool                    existing)
-{
-	LOG(info) << "Loading patch " << filename << " under "
-		<< parent_path << " / " << name << endl;
-
-	Path path("/");
-	if (parent_path)
-		path = *parent_path;
-	if (name)
-		path = path.child(*name);
-
-	size_t poly = 0;
-
-	/* Use parameter overridden polyphony, if given */
-	GraphObject::Properties::iterator poly_param = initial_data.find(_uris->ingen_polyphony);
-	if (poly_param != initial_data.end() && poly_param->second.type() == Atom::INT)
-		poly = poly_param->second.get_int32();
-
-	if (initial_data.find(_uris->ingen_document) == initial_data.end())
-		initial_data.insert(make_pair(_uris->ingen_document, filename));
-
-	xmlDocPtr doc = xmlParseFile(filename.c_str());
-
-	if (!doc) {
-		LOG(error) << "Unable to parse patch file." << endl;
-		return "";
-	}
-
-	xmlNodePtr cur = xmlDocGetRootElement(doc);
-
-	if (!cur) {
-		LOG(error) << "Empty document." << endl;
-		xmlFreeDoc(doc);
-		return "";
-	}
-
-	if (xmlStrcmp(cur->name, (const xmlChar*) "patch")) {
-		LOG(error) << "File is not an Om patch file (root node != <patch>)" << endl;
-		xmlFreeDoc(doc);
-		return "";
-	}
-
-	xmlChar* key = NULL;
-	cur = cur->xmlChildrenNode;
-
-	// Load Patch attributes
-	while (cur != NULL) {
-		key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
-
-		if ((!xmlStrcmp(cur->name, (const xmlChar*)"name"))) {
-			if (!merge && parent_path && !name && key) {
-				if (parent_path)
-					path = Path(parent_path.get()).base() + nameify_if_invalid((char*)key);
-				else
-					path = Path("/");
-			}
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"polyphony"))) {
-			if (poly == 0) {
-				poly = atoi((char*)key);
-			}
-		} else if (xmlStrcmp(cur->name, (const xmlChar*)"connection")
-				&& xmlStrcmp(cur->name, (const xmlChar*)"node")
-				&& xmlStrcmp(cur->name, (const xmlChar*)"subpatch")
-				&& xmlStrcmp(cur->name, (const xmlChar*)"filename")
-				&& xmlStrcmp(cur->name, (const xmlChar*)"preset")) {
-			// Don't know what this tag is, add it as variable without overwriting
-			// (so caller can set arbitrary parameters which will be preserved)
-			if (key)
-				add_variable(initial_data, (const char*)cur->name, (const char*)key);
-		}
-
-		xmlFree(key);
-		key = NULL; // Avoid a (possible?) double free
-
-		cur = cur->next;
-	}
-
-	if (poly == 0)
-		poly = 1;
-
-	// Create it, if we're not merging
-	if (!existing && !path.is_root()) {
-		Resource::Properties props;
-		props.insert(make_pair(_uris->rdf_type,        _uris->ingen_Patch));
-		props.insert(make_pair(_uris->ingen_polyphony, Atom((int32_t)poly)));
-		_engine->put(path, props);
-		for (GraphObject::Properties::const_iterator i = initial_data.begin(); i != initial_data.end(); ++i)
-			_engine->set_property(path, i->first, i->second);
-	}
-
-	// Load nodes
-	cur = xmlDocGetRootElement(doc)->xmlChildrenNode;
-	while (cur != NULL) {
-		if ((!xmlStrcmp(cur->name, (const xmlChar*)"node")))
-			load_node(path, doc, cur);
-
-		cur = cur->next;
-	}
-
-	// Load subpatches
-	cur = xmlDocGetRootElement(doc)->xmlChildrenNode;
-	while (cur != NULL) {
-		if ((!xmlStrcmp(cur->name, (const xmlChar*)"subpatch"))) {
-			load_subpatch(filename.substr(0, filename.find_last_of("/")), path, doc, cur);
-		}
-		cur = cur->next;
-	}
-
-	// Load connections
-	cur = xmlDocGetRootElement(doc)->xmlChildrenNode;
-	while (cur != NULL) {
-		if ((!xmlStrcmp(cur->name, (const xmlChar*)"connection"))) {
-			load_connection(path, doc, cur);
-		}
-		cur = cur->next;
-	}
-
-	// Load presets (control values)
-	cur = xmlDocGetRootElement(doc)->xmlChildrenNode;
-	while (cur != NULL) {
-		// I don't think Om ever wrote any preset other than "default"...
-		if ((!xmlStrcmp(cur->name, (const xmlChar*)"preset"))) {
-			SharedPtr<PresetModel> pm = load_preset(path, doc, cur);
-			assert(pm != NULL);
-			if (pm->name() == "default") {
-				list<ControlModel>::const_iterator i = pm->controls().begin();
-				for ( ; i != pm->controls().end(); ++i) {
-					const float value = i->value();
-					_engine->set_property(translate_load_path(i->port_path().str()),
-							_uris->ingen_value, Atom(value));
-				}
-			} else {
-				LOG(warn) << "Unknown preset `" << pm->name() << "'" << endl;
-			}
-		}
-		cur = cur->next;
-	}
-
-	xmlFreeDoc(doc);
-	xmlCleanupParser();
-
-	// Done above.. late enough?
-	//for (Properties::const_iterator i = data.begin(); i != data.end(); ++i)
-	//	_engine->set_property(subject, i->first, i->second);
-
-	if (!existing)
-		_engine->set_property(path, _uris->ingen_enabled, (bool)true);
-
-	_load_path_translations.clear();
-
-	return path.str();
-}
-
-
-bool
-DeprecatedLoader::load_node(const Path& parent, xmlDocPtr doc, const xmlNodePtr node)
-{
-	xmlChar* key;
-	xmlNodePtr cur = node->xmlChildrenNode;
-
-	string path = "";
-	bool   polyphonic = false;
-
-	string plugin_uri;
-
-	string plugin_type;  // deprecated
-	string library_name; // deprecated
-	string plugin_label; // deprecated
-
-	GraphObject::Properties initial_data;
-
-	while (cur != NULL) {
-		key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
-
-		if ((!xmlStrcmp(cur->name, (const xmlChar*)"name"))) {
-			path = parent.base() + nameify_if_invalid((char*)key);
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"polyphonic"))) {
-			polyphonic = !strcmp((char*)key, "true");
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"type"))) {
-			plugin_type = (const char*)key;
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"library-name"))) {
-			library_name = (char*)key;
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"plugin-label"))) {
-			plugin_label = (char*)key;
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"plugin-uri"))) {
-			plugin_uri = (char*)key;
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"port"))) {
-#if 0
-			xmlNodePtr child = cur->xmlChildrenNode;
-
-			string port_name;
-			float user_min = 0.0;
-			float user_max = 0.0;
-
-			while (child != NULL) {
-				key = xmlNodeListGetString(doc, child->xmlChildrenNode, 1);
-
-				if ((!xmlStrcmp(child->name, (const xmlChar*)"name"))) {
-					port_name = nameify_if_invalid((char*)key);
-				} else if ((!xmlStrcmp(child->name, (const xmlChar*)"user-min"))) {
-					user_min = atof((char*)key);
-				} else if ((!xmlStrcmp(child->name, (const xmlChar*)"user-max"))) {
-					user_max = atof((char*)key);
-				}
-
-				xmlFree(key);
-				key = NULL; // Avoid a (possible?) double free
-
-				child = child->next;
-			}
-
-			assert(path.length() > 0);
-			assert(Path::is_valid(path));
-
-			// FIXME: /nasty/ assumptions
-			SharedPtr<PortModel> pm(new PortModel(Path(path).base() + port_name,
-					PortModel::CONTROL, PortModel::INPUT, PortModel::NONE,
-					0.0, user_min, user_max));
-			//pm->set_parent(nm);
-			nm->add_port(pm);
-#endif
-
-		} else {  // Don't know what this tag is, add it as variable
-			if (key)
-				add_variable(initial_data, (const char*)cur->name, (const char*)key);
-		}
-		xmlFree(key);
-		key = NULL;
-
-		cur = cur->next;
-	}
-
-	if (path.empty()) {
-		LOG(error) << "Malformed patch file (node tag has empty children)" << endl;
-		LOG(error) << "Node ignored." << endl;
-		return false;
-	}
-
-	// Compatibility hacks for old patches that represent patch ports as nodes
-	if (plugin_uri.empty()) {
-		bool is_port = false;
-
-		Resource::Properties props;
-
-		if (plugin_type == "Internal") {
-			is_port = true;
-			if (plugin_label == "audio_input") {
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_AudioPort));
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_InputPort));
-			} else if (plugin_label == "audio_output") {
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_AudioPort));
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_OutputPort));
-			} else if (plugin_label == "control_input") {
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_ControlPort));
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_InputPort));
-			} else if (plugin_label == "control_output" ) {
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_ControlPort));
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_OutputPort));
-			} else if (plugin_label == "midi_input") {
-				props.insert(make_pair(_uris->rdf_type, _uris->ev_EventPort));
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_InputPort));
-			} else if (plugin_label == "midi_output" ) {
-				props.insert(make_pair(_uris->rdf_type, _uris->ev_EventPort));
-				props.insert(make_pair(_uris->rdf_type, _uris->lv2_OutputPort));
-			} else {
-				is_port = false;
-			}
-		}
-
-		if (is_port) {
-			const string old_path = path;
-			const string new_path = (Path::is_valid(old_path) ? old_path : Path::pathify(old_path));
-
-			if (!Path::is_valid(old_path))
-				LOG(warn) << "Translating invalid port path `" << old_path << "' => `"
-					<< new_path << "'" << endl;
-
-			// Set up translations (for connections etc) to alias both the old
-			// module path and the old module/port path to the new port path
-			if (old_path != new_path)
-				_load_path_translations[old_path] = new_path;
-			_load_path_translations[old_path + "/in"] = new_path;
-			_load_path_translations[old_path + "/out"] = new_path;
-
-			path = new_path;
-
-			_engine->put(path, props);
-
-			for (GraphObject::Properties::const_iterator i = initial_data.begin(); i != initial_data.end(); ++i)
-				_engine->set_property(path, i->first, i->second);
-
-			return false;
-
-		} else {
-			if (plugin_label == "note_in") {
-				plugin_uri = NS_INTERNALS "Note";
-				_load_path_translations[path + "/Frequency"] = path + "/frequency";
-				_load_path_translations[path + "/Velocity"] = path + "/velocity";
-				_load_path_translations[path + "/Gate"] = path + "/gate";
-				_load_path_translations[path + "/Trigger"] = path + "/trigger";
-			} else if (plugin_label == "control_input" || plugin_label == "midi_control_in") {
-				plugin_uri = NS_INTERNALS "Controller";
-				_load_path_translations[path + "/Controller_Number"] = path + "/controller";
-				_load_path_translations[path + "/Logarithmic"] = path + "/logarithmic";
-				_load_path_translations[path + "/Min"] = path + "/minimum";
-				_load_path_translations[path + "/Max"] = path + "/maximum";
-				_load_path_translations[path + "/Out"] = path + "/ar_output";
-			} else if (plugin_label == "transport") {
-				plugin_uri = NS_INTERNALS "Transport";
-			} else if (plugin_label == "trigger_in") {
-				plugin_uri = NS_INTERNALS "Trigger";
-				_load_path_translations[path + "/Velocity"] = path + "/velocity";
-				_load_path_translations[path + "/Gate"] = path + "/gate";
-				_load_path_translations[path + "/Trigger"] = path + "/trigger";
-			}
-
-			if (plugin_uri.empty())
-				plugin_uri = "om:" + plugin_type + ":" + library_name + ":" + plugin_label;
-
-			Resource::Properties props;
-			props.insert(make_pair(_uris->rdf_type,       _uris->ingen_Node));
-			props.insert(make_pair(_uris->rdf_instanceOf, Atom(Atom::URI, plugin_uri)));
-			_engine->put(path, props);
-
-			_engine->set_property(path, _uris->ingen_polyphonic, bool(polyphonic));
-
-			for (GraphObject::Properties::const_iterator i = initial_data.begin(); i != initial_data.end(); ++i)
-				_engine->set_property(path, i->first, i->second);
-
-			return true;
-		}
-
-	// Not deprecated
-	} else {
-		Resource::Properties props;
-		props.insert(make_pair(_uris->rdf_type,       _uris->ingen_Node));
-		props.insert(make_pair(_uris->rdf_instanceOf, Atom(Atom::URI, plugin_uri)));
-		_engine->put(path, props);
-		_engine->set_property(path, _uris->ingen_polyphonic, bool(polyphonic));
-		for (GraphObject::Properties::const_iterator i = initial_data.begin(); i != initial_data.end(); ++i)
-			_engine->set_property(path, i->first, i->second);
-		return true;
-	}
-
-	// (shouldn't get here)
-}
-
-
-bool
-DeprecatedLoader::load_subpatch(const string& base_filename, const Path& parent, xmlDocPtr doc, const xmlNodePtr subpatch)
-{
-	xmlChar *key;
-	xmlNodePtr cur = subpatch->xmlChildrenNode;
-
-	string name     = "";
-	string filename = "";
-	size_t poly     = 0;
-
-	GraphObject::Properties initial_data;
-	while (cur != NULL) {
-		key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
-
-		if ((!xmlStrcmp(cur->name, (const xmlChar*)"name"))) {
-			name = (const char*)key;
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"polyphony"))) {
-			initial_data.insert(make_pair(_uris->ingen_polyphony, (int)poly));
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"filename"))) {
-			filename = Glib::build_filename(base_filename, (const char*)key);
-		} else {  // Don't know what this tag is, add it as variable
-			if (key != NULL && strlen((const char*)key) > 0)
-				add_variable(initial_data, (const char*)cur->name, (const char*)key);
-		}
-		xmlFree(key);
-		key = NULL;
-
-		cur = cur->next;
-	}
-
-	LOG(info) << "Loading subpatch " << filename << " under " << parent << endl;
-	// load_patch sets the passed variable last, so values stored in the parent
-	// will override values stored in the child patch file
-	load_patch(filename, false, parent, Symbol(nameify_if_invalid(name)), initial_data, false);
-
-	return false;
-}
-
-
-bool
-DeprecatedLoader::load_connection(const Path& parent, xmlDocPtr doc, const xmlNodePtr node)
-{
-	xmlChar *key;
-	xmlNodePtr cur = node->xmlChildrenNode;
-
-	string source_node, source_port, dest_node, dest_port;
-
-	while (cur != NULL) {
-		key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
-
-		if ((!xmlStrcmp(cur->name, (const xmlChar*)"source-node"))) {
-			source_node = (char*)key;
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"source-port"))) {
-			source_port = (char*)key;
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"destination-node"))) {
-			dest_node = (char*)key;
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"destination-port"))) {
-			dest_port = (char*)key;
-		}
-
-		xmlFree(key);
-		key = NULL; // Avoid a (possible?) double free
-
-		cur = cur->next;
-	}
-
-	if (source_node.empty() || source_port.empty() || dest_node.empty() || dest_port.empty()) {
-		LOG(error) << "Malformed patch file (connection tag has empty children)" << endl;
-		LOG(error) << "Connection ignored." << endl;
-		return false;
-	}
-
-	// Compatibility fixes for old (fundamentally broken) patches
-	source_node = nameify_if_invalid(source_node);
-	source_port = nameify_if_invalid(source_port);
-	dest_node = nameify_if_invalid(dest_node);
-	dest_port = nameify_if_invalid(dest_port);
-
-	_engine->connect(
-		translate_load_path(parent.base() + source_node +"/"+ source_port),
-		translate_load_path(parent.base() + dest_node +"/"+ dest_port));
-
-	return true;
-}
-
-
-/** Build a PresetModel given a pointer to a preset in a patch file. */
-SharedPtr<PresetModel>
-DeprecatedLoader::load_preset(const Path& parent, xmlDocPtr doc, const xmlNodePtr node)
-{
-	xmlNodePtr cur = node->xmlChildrenNode;
-	xmlChar* key;
-
-	SharedPtr<PresetModel> pm(new PresetModel(parent.base()));
-
-	while (cur != NULL) {
-		key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
-
-		if ((!xmlStrcmp(cur->name, (const xmlChar*)"name"))) {
-			assert(key != NULL);
-			pm->name((char*)key);
-		} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"control"))) {
-			xmlNodePtr child = cur->xmlChildrenNode;
-
-			string node_name = "", port_name = "";
-			float val = 0.0;
-
-			while (child != NULL) {
-				key = xmlNodeListGetString(doc, child->xmlChildrenNode, 1);
-
-				if ((!xmlStrcmp(child->name, (const xmlChar*)"node-name"))) {
-					node_name = (char*)key;
-				} else if ((!xmlStrcmp(child->name, (const xmlChar*)"port-name"))) {
-					port_name = (char*)key;
-				} else if ((!xmlStrcmp(child->name, (const xmlChar*)"value"))) {
-					val = atof((char*)key);
-				}
-
-				xmlFree(key);
-				key = NULL; // Avoid a (possible?) double free
-
-				child = child->next;
-			}
-
-			// Compatibility fixes for old patch files
-			if (!node_name.empty())
-				node_name = nameify_if_invalid(node_name);
-			port_name = nameify_if_invalid(port_name);
-
-			if (port_name.empty()) {
-				string msg = "Unable to parse control in patch file ( node = ";
-				msg.append(node_name).append(", port = ").append(port_name).append(")");
-				LOG(error) << msg << endl;
-			} else {
-				// FIXME: temporary compatibility, remove any slashes from port name
-				// remove this soon once patches have migrated
-				string::size_type slash_index;
-				while ((slash_index = port_name.find("/")) != string::npos)
-					port_name[slash_index] = '-';
-
-				pm->add_control(node_name, port_name, val);
-			}
-		}
-		xmlFree(key);
-		key = NULL;
-		cur = cur->next;
-	}
-	if (pm->name().empty()) {
-		LOG(error) << "Preset in patch file has no name." << endl;
-		pm->name("Unnamed");
-	}
-
-	return pm;
-}
-
-} // namespace Client
-} // namespace Ingen
diff --git a/src/client/DeprecatedLoader.hpp b/src/client/DeprecatedLoader.hpp
deleted file mode 100644
index d66233ec..00000000
--- a/src/client/DeprecatedLoader.hpp
+++ /dev/null
@@ -1,90 +0,0 @@
-/* This file is part of Ingen.
- * Copyright (C) 2007-2009 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
- */
-
-#ifndef INGEN_CLIENT_DEPRECATEDLOADER_HPP
-#define INGEN_CLIENT_DEPRECATEDLOADER_HPP
-
-#include <map>
-#include <utility>
-#include <string>
-#include <cassert>
-#include <boost/optional.hpp>
-#include <glibmm/ustring.h>
-#include <libxml/tree.h>
-#include "raul/SharedPtr.hpp"
-#include "interface/EngineInterface.hpp"
-#include "interface/GraphObject.hpp"
-#include "ObjectModel.hpp"
-
-namespace Raul { class Path; }
-
-namespace Ingen {
-
-namespace Shared { class LV2URIMap; }
-
-namespace Client {
-
-class PresetModel; // defined in DeprecatedLoader.cpp
-
-
-/** Loads deprecated (XML) patch files (from the Om days).
- *
- * \ingroup IngenClient
- */
-class DeprecatedLoader
-{
-public:
-	DeprecatedLoader(
-			SharedPtr<Shared::LV2URIMap> uris,
-			SharedPtr<Shared::EngineInterface> engine)
-		: _uris(uris)
-		, _engine(engine)
-	{
-		assert(_engine);
-	}
-
-	std::string load_patch(const Glib::ustring&            filename,
-	                       bool                            merge,
-	                       boost::optional<Raul::Path>     parent_path,
-	                       boost::optional<Raul::Symbol>   name,
-	                       Shared::GraphObject::Properties initial_data,
-	                       bool                            existing = false);
-
-private:
-	void add_variable(Shared::GraphObject::Properties& data, std::string key, std::string value);
-
-	std::string nameify_if_invalid(const std::string& name);
-	std::string translate_load_path(const std::string& path);
-
-	SharedPtr<Shared::LV2URIMap>       _uris;
-	SharedPtr<Shared::EngineInterface> _engine;
-
-	/// Translations of paths from the loading file to actual paths (for deprecated patches)
-	std::map<std::string, std::string> _load_path_translations;
-
-	bool load_node(const Raul::Path& parent, xmlDocPtr doc, const xmlNodePtr cur);
-	bool load_connection(const Raul::Path& parent, xmlDocPtr doc, const xmlNodePtr cur);
-	bool load_subpatch(const std::string& base_filename, const Raul::Path& parent, xmlDocPtr doc, const xmlNodePtr cur);
-
-	SharedPtr<PresetModel> load_preset(const Raul::Path& parent, xmlDocPtr doc, const xmlNodePtr cur);
-};
-
-
-} // namespace Client
-} // namespace Ingen
-
-#endif // INGEN_CLIENT_DEPRECATEDLOADER_HPP
diff --git a/src/client/wscript b/src/client/wscript
index 2ab0be44..0cba8a8e 100644
--- a/src/client/wscript
+++ b/src/client/wscript
@@ -24,9 +24,6 @@ def build(bld):
 			HTTPEngineSender.cpp
 		'''
 
-	if bld.env['HAVE_XML2'] == 1:
-		obj.source += ' DeprecatedLoader.cpp '
-
 	if bld.env['HAVE_LIBLO'] == 1:
 		obj.source += ' OSCClientReceiver.cpp OSCEngineSender.cpp '
 
@@ -36,5 +33,5 @@ def build(bld):
 	obj.target          = 'ingen_client'
 	obj.install_path    = '${LIBDIR}'
 	obj.use             = 'libingen_shared'
-	autowaf.use_lib(bld, obj, 'GLIBMM LV2CORE SLV2 RAUL SORD SOUP XML2 SIGCPP LIBLO SOUP')
+	autowaf.use_lib(bld, obj, 'GLIBMM LV2CORE SLV2 RAUL SORD SOUP SIGCPP LIBLO SOUP')
 
diff --git a/src/gui/LoadPatchWindow.cpp b/src/gui/LoadPatchWindow.cpp
index 882f1368..81066a8c 100644
--- a/src/gui/LoadPatchWindow.cpp
+++ b/src/gui/LoadPatchWindow.cpp
@@ -175,7 +175,7 @@ LoadPatchWindow::ok_clicked()
 			symbol = _patch->symbol();
 		}
 
-		App::instance().loader()->load_patch(true, get_uri(), Path("/"),
+		App::instance().loader()->load_patch(true, get_uri(),
 				parent, symbol, _initial_data);
 
 	} else {
@@ -193,7 +193,7 @@ LoadPatchWindow::ok_clicked()
 
 			symbol = avoid_symbol_clash(symbol);
 
-			App::instance().loader()->load_patch(false, *i, Path("/"),
+			App::instance().loader()->load_patch(false, *i,
 					_patch->path(), symbol, _initial_data);
 		}
 	}
diff --git a/src/gui/LoadRemotePatchWindow.cpp b/src/gui/LoadRemotePatchWindow.cpp
index 0ad4d5b5..f48bd0bc 100644
--- a/src/gui/LoadRemotePatchWindow.cpp
+++ b/src/gui/LoadRemotePatchWindow.cpp
@@ -140,7 +140,7 @@ LoadRemotePatchWindow::open_clicked()
 	if (!_patch->path().is_root())
 		parent = _patch->path().parent();
 
-	App::instance().loader()->load_patch(true, uri, Path("/"),
+	App::instance().loader()->load_patch(true, uri,
 			parent, symbol, _initial_data);
 
 	hide();
diff --git a/src/gui/ThreadedLoader.cpp b/src/gui/ThreadedLoader.cpp
index 2a9646e2..c60d8c4c 100644
--- a/src/gui/ThreadedLoader.cpp
+++ b/src/gui/ThreadedLoader.cpp
@@ -1,5 +1,5 @@
 /* This file is part of Ingen.
- * Copyright (C) 2007-2009 David Robillard <http://drobilla.net>
+ * Copyright (C) 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
@@ -31,10 +31,8 @@ using namespace Raul;
 namespace Ingen {
 namespace GUI {
 
-
 ThreadedLoader::ThreadedLoader(SharedPtr<Shared::LV2URIMap> uris, SharedPtr<EngineInterface> engine)
 	: _engine(engine)
-	, _deprecated_loader(uris, engine)
 {
 	set_name("Loader");
 
@@ -44,7 +42,6 @@ ThreadedLoader::ThreadedLoader(SharedPtr<Shared::LV2URIMap> uris, SharedPtr<Engi
 		warn << "Failed to load ingen_serialisation module, load disabled." << endl;
 }
 
-
 SharedPtr<Parser>
 ThreadedLoader::parser()
 {
@@ -56,7 +53,6 @@ ThreadedLoader::parser()
 	return world->parser();
 }
 
-
 void
 ThreadedLoader::_whipped()
 {
@@ -71,11 +67,10 @@ ThreadedLoader::_whipped()
 }
 
 void
-ThreadedLoader::load_patch(bool                             merge,
-                           const Glib::ustring&             document_uri,
-                           optional<Path>                   data_path,
-                           optional<Path>                   engine_parent,
-                           optional<Symbol>                 engine_symbol,
+ThreadedLoader::load_patch(bool                              merge,
+                           const Glib::ustring&              document_uri,
+                           optional<Path>                    engine_parent,
+                           optional<Symbol>                  engine_symbol,
                            optional<GraphObject::Properties> engine_data)
 {
 	_mutex.lock();
@@ -90,36 +85,22 @@ ThreadedLoader::load_patch(bool                             merge,
 			engine_base = engine_parent.get().base();
 	}
 
-	// Filthy hack to load deprecated patches based on file extension
-	if (document_uri.substr(document_uri.length()-3) == ".om") {
-		_events.push_back(sigc::hide_return(sigc::bind(
-				sigc::mem_fun(_deprecated_loader,
-				              &DeprecatedLoader::load_patch),
-				document_uri,
-				merge,
-				engine_parent,
-				engine_symbol,
-				*engine_data,
-				false)));
-	} else {
-		_events.push_back(sigc::hide_return(sigc::bind(
-				sigc::mem_fun(world->parser().get(),
-				              &Ingen::Serialisation::Parser::parse_file),
-				App::instance().world(),
-				App::instance().world()->engine().get(),
-				document_uri,
-				data_path,
-				engine_parent,
-				engine_symbol,
-				engine_data)));
-	}
+	_events.push_back(
+		sigc::hide_return(
+			sigc::bind(sigc::mem_fun(world->parser().get(),
+			                         &Ingen::Serialisation::Parser::parse_file),
+			           App::instance().world(),
+			           App::instance().world()->engine().get(),
+			           document_uri,
+			           engine_parent,
+			           engine_symbol,
+			           engine_data)));
 
 	whip();
 
 	_mutex.unlock();
 }
 
-
 void
 ThreadedLoader::save_patch(SharedPtr<PatchModel> model, const string& filename)
 {
@@ -134,7 +115,6 @@ ThreadedLoader::save_patch(SharedPtr<PatchModel> model, const string& filename)
 	whip();
 }
 
-
 void
 ThreadedLoader::save_patch_event(SharedPtr<PatchModel> model, const string& filename)
 {
@@ -146,6 +126,5 @@ ThreadedLoader::save_patch_event(SharedPtr<PatchModel> model, const string& file
 	}
 }
 
-
 } // namespace GUI
 } // namespace Ingen
diff --git a/src/gui/ThreadedLoader.hpp b/src/gui/ThreadedLoader.hpp
index a6389df8..96c64af3 100644
--- a/src/gui/ThreadedLoader.hpp
+++ b/src/gui/ThreadedLoader.hpp
@@ -1,5 +1,5 @@
 /* This file is part of Ingen.
- * Copyright (C) 2007-2009 David Robillard <http://drobilla.net>
+ * Copyright (C) 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
@@ -26,7 +26,6 @@
 #include "raul/Slave.hpp"
 #include <glibmm/thread.h>
 #include "interface/EngineInterface.hpp"
-#include "client/DeprecatedLoader.hpp"
 #include "serialisation/Serialiser.hpp"
 #include "serialisation/Parser.hpp"
 using std::string;
@@ -40,7 +39,6 @@ using namespace Serialisation;
 
 namespace GUI {
 
-
 /** Thread for loading patch files.
  *
  * This is a seperate thread so it can send all the loading message without
@@ -55,11 +53,11 @@ namespace GUI {
 class ThreadedLoader : public Raul::Slave
 {
 public:
-	ThreadedLoader(SharedPtr<Shared::LV2URIMap> uris, SharedPtr<EngineInterface> engine);
+	ThreadedLoader(SharedPtr<Shared::LV2URIMap> uris,
+	               SharedPtr<EngineInterface>   engine);
 
 	void load_patch(bool                              merge,
                     const Glib::ustring&              document_uri,
-                    optional<Raul::Path>              data_path,
                     optional<Raul::Path>              engine_parent,
                     optional<Raul::Symbol>            engine_symbol,
                     optional<GraphObject::Properties> engine_data);
@@ -79,12 +77,10 @@ private:
 
 	SharedPtr<EngineInterface> _engine;
 
-	DeprecatedLoader _deprecated_loader;
-	Glib::Mutex      _mutex;
-	list<Closure>    _events;
+	Glib::Mutex   _mutex;
+	list<Closure> _events;
 };
 
-
 } // namespace GUI
 } // namespace Ingen
 
diff --git a/src/gui/wscript b/src/gui/wscript
index 54919362..8e6bf344 100644
--- a/src/gui/wscript
+++ b/src/gui/wscript
@@ -63,7 +63,6 @@ def build(bld):
 		LV2CORE
 		SLV2
 		SOUP
-		XML2
 	''')
 
 	# Glade XML UI definition
diff --git a/src/ingen/main.cpp b/src/ingen/main.cpp
index 0a3129a6..1407dfda 100644
--- a/src/ingen/main.cpp
+++ b/src/ingen/main.cpp
@@ -161,7 +161,6 @@ main(int argc, char** argv)
 
 	// Load a patch
 	if (conf.option("load").is_valid() && engine_interface) {
-		boost::optional<Path>   data_path = Path("/");
 		boost::optional<Path>   parent;
 		boost::optional<Symbol> symbol;
 		const Raul::Atom&       path_option = conf.option("path");
@@ -197,7 +196,7 @@ main(int argc, char** argv)
 		if (conf.option("gui").get_bool())
 			engine_interface->get("ingen:plugins");
 		world->parser()->parse_file(
-			world, engine_interface.get(), uri, data_path, parent, symbol);
+			world, engine_interface.get(), uri, parent, symbol);
 	}
 
 	// Load GUI
diff --git a/src/serialisation/Parser.cpp b/src/serialisation/Parser.cpp
index 1fd67498..4ccb4525 100644
--- a/src/serialisation/Parser.cpp
+++ b/src/serialisation/Parser.cpp
@@ -131,7 +131,6 @@ bool
 Parser::parse_file(Ingen::Shared::World*                    world,
                    Ingen::Shared::CommonInterface*          target,
                    Glib::ustring                            file_uri,
-                   boost::optional<Raul::Path>              data_path,
                    boost::optional<Raul::Path>              parent,
                    boost::optional<Raul::Symbol>            symbol,
                    boost::optional<GraphObject::Properties> data)
@@ -170,15 +169,13 @@ Parser::parse_file(Ingen::Shared::World*                    world,
 	model.load_file(filename);
 
 	LOG(info) << "Parsing " << file_uri << endl;
-	if (data_path)
-		LOG(info) << "Path: " << *data_path << endl;
 	if (parent)
 		LOG(info) << "Parent: " << *parent << endl;
 	if (symbol)
 		LOG(info) << "Symbol: " << *symbol << endl;
 
 	boost::optional<Path> parsed_path
-		= parse(world, target, model, filename, data_path, parent, symbol, data);
+		= parse(world, target, model, filename, Path("/"), parent, symbol, data);
 
 	if (parsed_path) {
 		target->set_property(*parsed_path, "http://drobilla.net/ns/ingen#document",
diff --git a/src/serialisation/Parser.hpp b/src/serialisation/Parser.hpp
index d9b33956..6d1661dd 100644
--- a/src/serialisation/Parser.hpp
+++ b/src/serialisation/Parser.hpp
@@ -47,7 +47,6 @@ public:
 		Ingen::Shared::World*         world,
 		Shared::CommonInterface*      target,
 		Glib::ustring                 document_uri,
-		boost::optional<Raul::Path>   data_path=boost::optional<Raul::Path>(),
 		boost::optional<Raul::Path>   parent=boost::optional<Raul::Path>(),
 		boost::optional<Raul::Symbol> symbol=boost::optional<Raul::Symbol>(),
 		boost::optional<Properties>   data=boost::optional<Properties>());
diff --git a/wscript b/wscript
index 2f9ce164..eb9da81a 100644
--- a/wscript
+++ b/wscript
@@ -55,8 +55,6 @@ def configure(conf):
 			  atleast_version='0.6.2', mandatory=True)
 	autowaf.check_pkg(conf, 'flowcanvas', uselib_store='FLOWCANVAS',
 			  atleast_version='0.7.0', mandatory=False)
-	autowaf.check_pkg(conf, 'libxml-2.0', uselib_store='XML2',
-			  atleast_version='2.6.0', mandatory=False)
 	autowaf.check_pkg(conf, 'libglademm-2.4', uselib_store='GLADEMM',
 			  atleast_version='2.6.0', mandatory=False)
 	autowaf.check_pkg(conf, 'sord', uselib_store='SORD',