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-rw-r--r--src/libs/engine/LADSPAPlugin.cpp75
1 files changed, 75 insertions, 0 deletions
diff --git a/src/libs/engine/LADSPAPlugin.cpp b/src/libs/engine/LADSPAPlugin.cpp
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+++ b/src/libs/engine/LADSPAPlugin.cpp
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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
+ */
+
+#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