1 files changed, 75 insertions, 0 deletions
diff --git a/src/libs/engine/LADSPAPlugin.cpp b/src/libs/engine/LADSPAPlugin.cpp
new file mode 100644
index 00000000..a43baa9a
--- /dev/null
+++ b/src/libs/engine/LADSPAPlugin.cpp
@@ -0,0 +1,75 @@
+/* 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
+ */
+
+#include <cassert>
+#include <ladspa.h>
+#include <iostream>
+#include "LADSPAPlugin.hpp"
+#include "LADSPANode.hpp"
+#include "NodeImpl.hpp"
+
+using namespace std;
+
+namespace Ingen {
+
+
+NodeImpl*
+LADSPAPlugin::instantiate(const string&     name,
+                          bool              polyphonic,
+                          Ingen::PatchImpl* parent,
+                          SampleRate        srate,
+                          size_t            buffer_size)
+{
+	assert(_id != 0);
+	
+	LADSPA_Descriptor_Function df = NULL;
+	LADSPANode* n = NULL;
+
+	load(); // FIXME: unload at some point
+	assert(_module);
+	assert(*_module);
+	
+	if (!_module->get_symbol("ladspa_descriptor", (void*&)df)) {
+		cerr << "Looks like this isn't a LADSPA plugin." << endl;
+		return NULL;
+	}
+
+	// Attempt to find the plugin in library
+	LADSPA_Descriptor* descriptor = NULL;
+	for (unsigned long i=0; (descriptor = (LADSPA_Descriptor*)df(i)) != NULL; ++i) {
+		if (descriptor->UniqueID == _id) {
+			break;
+		}
+	}
+	
+	if (descriptor != NULL) {
+		n = new LADSPANode(this, name, polyphonic, parent, descriptor, srate, buffer_size);
+
+		if ( ! n->instantiate() ) {
+			delete n;
+			n = NULL;
+		}
+
+	} else {
+		cerr << "Could not find plugin \"" << _id << "\" in " << _library_path << endl;
+	}
+
+	return n;
+}
+
+
+} // namespace Ingen