comparison plugin/RealTimePluginFactory.cpp @ 0:da6937383da8

initial import

+// -*- c-basic-offset: 4 -*-
+
+/*
+    Rosegarden-4
+    A sequencer and musical notation editor.
+
+    This program is Copyright 2000-2005
+        Guillaume Laurent   <[e-mail]>,
+        Chris Cannam        <[e-mail]>,
+        Richard Bown        <[e-mail]>
+
+    The moral right of the authors to claim authorship of this work
+    has been asserted.
+
+    This program 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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#include "RealTimePluginFactory.h"
+#include "PluginIdentifier.h"
+
+#include "LADSPAPluginFactory.h"
+#include "DSSIPluginFactory.h"
+
+#include <iostream>
+
+int RealTimePluginFactory::m_sampleRate = 48000;
+
+static LADSPAPluginFactory *_ladspaInstance = 0;
+static LADSPAPluginFactory *_dssiInstance = 0;
+
+RealTimePluginFactory *
+RealTimePluginFactory::instance(QString pluginType)
+{
+    if (pluginType == "ladspa") {
+	if (!_ladspaInstance) {
+	    std::cerr << "RealTimePluginFactory::instance(" << pluginType.toStdString()
+		      << "): creating new LADSPAPluginFactory" << std::endl;
+	    _ladspaInstance = new LADSPAPluginFactory();
+	    _ladspaInstance->discoverPlugins();
+	}
+	return _ladspaInstance;
+    } else if (pluginType == "dssi") {
+	if (!_dssiInstance) {
+	    std::cerr << "RealTimePluginFactory::instance(" << pluginType.toStdString()
+		      << "): creating new DSSIPluginFactory" << std::endl;
+	    _dssiInstance = new DSSIPluginFactory();
+	    _dssiInstance->discoverPlugins();
+	}
+	return _dssiInstance;
+    }
+	
+    else return 0;
+}
+
+RealTimePluginFactory *
+RealTimePluginFactory::instanceFor(QString identifier)
+{
+    QString type, soName, label;
+    PluginIdentifier::parseIdentifier(identifier, type, soName, label);
+    return instance(type);
+}
+
+std::vector<QString>
+RealTimePluginFactory::getAllPluginIdentifiers()
+{
+    RealTimePluginFactory *factory;
+    std::vector<QString> rv;
+    
+    // Query DSSI plugins before LADSPA ones.
+    // This is to provide for the interesting possibility of plugins
+    // providing either DSSI or LADSPA versions of themselves,
+    // returning both versions if the LADSPA identifiers are queried
+    // first but only the DSSI version if the DSSI identifiers are
+    // queried first.
+
+    factory = instance("dssi");
+    if (factory) {
+	const std::vector<QString> &tmp = factory->getPluginIdentifiers();
+	for (size_t i = 0; i < tmp.size(); ++i) {
+	    rv.push_back(tmp[i]);
+	}
+    }
+
+    factory = instance("ladspa");
+    if (factory) {
+	const std::vector<QString> &tmp = factory->getPluginIdentifiers();
+	for (size_t i = 0; i < tmp.size(); ++i) {
+	    rv.push_back(tmp[i]);
+	}
+    }
+
+    // Plugins can change the locale, revert it to default.
+    setlocale(LC_ALL, "C");
+    return rv;
+}
+
+void
+RealTimePluginFactory::enumerateAllPlugins(std::vector<QString> &list)
+{
+    RealTimePluginFactory *factory;
+
+    // Query DSSI plugins before LADSPA ones.
+    // This is to provide for the interesting possibility of plugins
+    // providing either DSSI or LADSPA versions of themselves,
+    // returning both versions if the LADSPA identifiers are queried
+    // first but only the DSSI version if the DSSI identifiers are
+    // queried first.
+
+    factory = instance("dssi");
+    if (factory) factory->enumeratePlugins(list);
+
+    factory = instance("ladspa");
+    if (factory) factory->enumeratePlugins(list);
+    
+    // Plugins can change the locale, revert it to default.
+    setlocale(LC_ALL, "C");
+}
+