Added common abstract interface for Plugins.

git-svn-id: http://svn.drobilla.net/lad/ingen@837 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 144 insertions, 0 deletions

diff --git a/src/libs/engine/PluginImpl.hpp b/src/libs/engine/PluginImpl.hpp
new file mode 100644
index 00000000..e2aa4374
--- /dev/null
+++ b/src/libs/engine/PluginImpl.hpp
@@ -0,0 +1,144 @@
+/* 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 PLUGINIMPL_H
+#define PLUGINIMPL_H
+
+#include CONFIG_H_PATH
+
+#include <cstdlib>
+#include <glibmm/module.h>
+#include <boost/utility.hpp>
+#include <dlfcn.h>
+#include <string>
+#include <iostream>
+#ifdef HAVE_SLV2
+#include <slv2/slv2.h>
+#endif
+#include "types.hpp"
+#include "interface/Plugin.hpp"
+using std::string;
+using Ingen::Shared::Plugin;
+
+namespace Ingen {
+
+class Patch;
+class NodeImpl;
+
+
+/** Representation of a plugin (of various types).
+ *
+ * A Node is an instance of this, conceptually.
+ * FIXME: This whole thing is a filthy mess and needs a rewrite.  Probably
+ * with derived classes for each plugin type.
+ */
+class PluginImpl : public Ingen::Shared::Plugin, public boost::noncopyable
+{
+public:
+	PluginImpl(Type type, const string& uri)
+	: _type(type)
+	, _uri(uri)
+	, _id(0)
+	, _module(NULL)
+#ifdef HAVE_SLV2
+	, _slv2_plugin(NULL)
+#endif
+	{}
+
+	PluginImpl(const PluginImpl* const copy) {
+		// Copying only allowed for Internal plugins.  Bit of a hack, but
+		// allows the PluginInfo to be defined in the Node class which keeps
+		// things localized and convenient (FIXME?)
+		if (copy->_type != Internal)
+			exit(EXIT_FAILURE);
+		_type = copy->_type;
+		_uri = copy->_uri;
+		_lib_path = copy->_lib_path;
+		_lib_name = copy->_lib_name;
+		_plug_label = copy->_plug_label;
+		_name = copy->_name;
+		_id = _id;
+		_module = copy->_module;
+	}
+	
+	Plugin::Type  type() const                 { return _type; }
+	void          type(Plugin::Type t)         { _type = t; }
+	const string& lib_path() const             { return _lib_path; }
+	void          lib_path(const string& s)    { _lib_path = s; _lib_name = _lib_path.substr(_lib_path.find_last_of("/")+1); }
+	string        lib_name() const             { return _lib_name; }
+	void          lib_name(const string& s)    { _lib_name = s; }
+	const string& plug_label() const           { return _plug_label; }
+	void          plug_label(const string& s)  { _plug_label = s; }
+	const string& name() const                 { return _name; }
+	void          name(const string& s)        { _name = s; }
+	unsigned long id() const                   { return _id; }
+	void          id(unsigned long i)          { _id = i; }
+	const string& uri() const                  { return _uri; }
+	void          uri(const string& s)         { _uri = s; }
+	Glib::Module* module() const               { return _module; }
+	void          module(Glib::Module* module) { _module = module; }
+	
+	const char* type_string() const {
+		if (_type == LADSPA) return "LADSPA";
+		else if (_type == LV2) return "LV2";
+		else if (_type == DSSI) return "DSSI";
+		else if (_type == Internal) return "Internal";
+		else if (_type == Patch) return "Patch";
+		else return "";
+	}
+	
+	string type_uri() const {
+		return string("ingen:") + type_string();
+	}
+
+	void set_type(const string& type_string) {
+		if (type_string == "LADSPA") _type = LADSPA;
+		else if (type_string == "LV2") _type = LV2;
+		else if (type_string == "DSSI") _type = DSSI;
+		else if (type_string == "Internal") _type = Internal;
+		else if (type_string == "Patch") _type = Patch;
+	}
+	
+	// FIXME: ew
+#ifdef HAVE_SLV2
+	SLV2Plugin slv2_plugin() const       { return _slv2_plugin; }
+	void       slv2_plugin(SLV2Plugin p) { _slv2_plugin = p; }	
+#endif
+
+	NodeImpl* instantiate(const string& name, bool polyphonic, Ingen::Patch* parent, SampleRate srate, size_t buffer_size);
+
+private:
+	Plugin::Type  _type;
+	string        _uri;        ///< LV2 only
+	string        _lib_path;   ///< LADSPA/DSSI only
+	string        _lib_name;   ///< LADSPA/DSSI only
+	string        _plug_label; ///< LADSPA/DSSI only
+	string        _name;       ///< LADSPA/DSSI only
+	unsigned long _id;  ///< LADSPA/DSSI only
+	
+	Glib::Module* _module;
+
+#ifdef HAVE_SLV2
+	SLV2Plugin _slv2_plugin;
+#endif
+};
+
+
+} // namespace Ingen
+
+#endif // PLUGINIMPL_H
+