Chris@0: /* -*- c-basic-offset: 4 -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@0:     A waveform viewer and audio annotation editor.
Chris@2:     Chris Cannam, Queen Mary University of London, 2005-2006
Chris@0:     
Chris@0:     This is experimental software.  Not for distribution.
Chris@0: */
Chris@0: 
Chris@0: /*
Chris@0:    This is a modified version of a source file from the 
Chris@0:    Rosegarden MIDI and audio sequencer and notation editor.
Chris@0:    This file copyright 2000-2005 Chris Cannam.
Chris@0: */
Chris@0: 
Chris@0: #include "DSSIPluginFactory.h"
Chris@0: #include <iostream>
Chris@0: 
Chris@0: #include <QString>
Chris@0: 
Chris@0: #include "DSSIPluginInstance.h"
Chris@0: #include "PluginIdentifier.h"
Chris@0: 
Chris@0: //!!!
Chris@0: #include "plugins/SamplePlayer.h"
Chris@0: 
Chris@0: #include "base/System.h"
Chris@0: 
Chris@0: #ifdef HAVE_LIBLRDF
Chris@0: #include "lrdf.h"
Chris@0: #endif // HAVE_LIBLRDF
Chris@0: 
Chris@0: 
Chris@0: DSSIPluginFactory::DSSIPluginFactory() :
Chris@0:     LADSPAPluginFactory()
Chris@0: {
Chris@0:     m_hostDescriptor.DSSI_API_Version = 2;
Chris@0:     m_hostDescriptor.request_transport_information = NULL;
Chris@0:     m_hostDescriptor.request_midi_send = DSSIPluginInstance::requestMidiSend;
Chris@0:     m_hostDescriptor.request_non_rt_thread = DSSIPluginInstance::requestNonRTThread;
Chris@0:     m_hostDescriptor.midi_send = DSSIPluginInstance::midiSend;
Chris@0: }
Chris@0: 
Chris@0: DSSIPluginFactory::~DSSIPluginFactory()
Chris@0: {
Chris@0:     // nothing else to do here either
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginFactory::enumeratePlugins(std::vector<QString> &list)
Chris@0: {
Chris@0:     for (std::vector<QString>::iterator i = m_identifiers.begin();
Chris@0: 	 i != m_identifiers.end(); ++i) {
Chris@0: 
Chris@0: 	const DSSI_Descriptor *ddesc = getDSSIDescriptor(*i);
Chris@0: 	if (!ddesc) continue;
Chris@0: 
Chris@0: 	const LADSPA_Descriptor *descriptor = ddesc->LADSPA_Plugin;
Chris@0: 	if (!descriptor) continue;
Chris@0: 	
Chris@0: //	std::cerr << "DSSIPluginFactory::enumeratePlugins: Name " << (descriptor->Name ? descriptor->Name : "NONE" ) << std::endl;
Chris@0: 
Chris@0: 	list.push_back(*i);
Chris@0: 	list.push_back(descriptor->Name);
Chris@0: 	list.push_back(QString("%1").arg(descriptor->UniqueID));
Chris@0: 	list.push_back(descriptor->Label);
Chris@0: 	list.push_back(descriptor->Maker);
Chris@0: 	list.push_back(descriptor->Copyright);
Chris@0: 	list.push_back((ddesc->run_synth || ddesc->run_multiple_synths) ? "true" : "false");
Chris@0: 	list.push_back(ddesc->run_multiple_synths ? "true" : "false");
Chris@0: 	list.push_back(m_taxonomy[descriptor->UniqueID]);
Chris@0: 	list.push_back(QString("%1").arg(descriptor->PortCount));
Chris@0: 
Chris@0: 	for (unsigned long p = 0; p < descriptor->PortCount; ++p) {
Chris@0: 
Chris@0: 	    int type = 0;
Chris@0: 	    if (LADSPA_IS_PORT_CONTROL(descriptor->PortDescriptors[p])) {
Chris@0: 		type |= PortType::Control;
Chris@0: 	    } else {
Chris@0: 		type |= PortType::Audio;
Chris@0: 	    }
Chris@0: 	    if (LADSPA_IS_PORT_INPUT(descriptor->PortDescriptors[p])) {
Chris@0: 		type |= PortType::Input;
Chris@0: 	    } else {
Chris@0: 		type |= PortType::Output;
Chris@0: 	    }
Chris@0: 
Chris@0: 	    list.push_back(QString("%1").arg(p));
Chris@0: 	    list.push_back(descriptor->PortNames[p]);
Chris@0: 	    list.push_back(QString("%1").arg(type));
Chris@0: 	    list.push_back(QString("%1").arg(getPortDisplayHint(descriptor, p)));
Chris@0: 	    list.push_back(QString("%1").arg(getPortMinimum(descriptor, p)));
Chris@0: 	    list.push_back(QString("%1").arg(getPortMaximum(descriptor, p)));
Chris@0: 	    list.push_back(QString("%1").arg(getPortDefault(descriptor, p)));
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     unloadUnusedLibraries();
Chris@0: }
Chris@0: 	
Chris@0: RealTimePluginInstance *
Chris@0: DSSIPluginFactory::instantiatePlugin(QString identifier,
Chris@0: 				     int instrument,
Chris@0: 				     int position,
Chris@0: 				     unsigned int sampleRate,
Chris@0: 				     unsigned int blockSize,
Chris@0: 				     unsigned int channels)
Chris@0: {
Chris@0:     const DSSI_Descriptor *descriptor = getDSSIDescriptor(identifier);
Chris@0: 
Chris@0:     if (descriptor) {
Chris@0: 
Chris@0: 	DSSIPluginInstance *instance =
Chris@0: 	    new DSSIPluginInstance
Chris@0: 	    (this, instrument, identifier, position, sampleRate, blockSize, channels,
Chris@0: 	     descriptor);
Chris@0: 
Chris@0: 	m_instances.insert(instance);
Chris@0: 
Chris@0: 	return instance;
Chris@0:     }
Chris@0: 
Chris@0:     return 0;
Chris@0: }
Chris@0: 
Chris@0: const DSSI_Descriptor *
Chris@0: DSSIPluginFactory::getDSSIDescriptor(QString identifier)
Chris@0: {
Chris@0:     QString type, soname, label;
Chris@0:     PluginIdentifier::parseIdentifier(identifier, type, soname, label);
Chris@0: 
Chris@0:     if (soname == PluginIdentifier::BUILTIN_PLUGIN_SONAME) {
Chris@0: 	if (label == "sample_player") {
Chris@0: 	    const DSSI_Descriptor *descriptor = SamplePlayer::getDescriptor(0);
Chris@0: 	    if (descriptor) {
Chris@0: 		descriptor->receive_host_descriptor(&m_hostDescriptor);
Chris@0: 	    }
Chris@0: 	    return descriptor;
Chris@0: 	} else {
Chris@0: 	    return 0;
Chris@0: 	}
Chris@0:     }
Chris@0:     
Chris@0:     bool firstInLibrary = false;
Chris@0: 
Chris@0:     if (m_libraryHandles.find(soname) == m_libraryHandles.end()) {
Chris@0: 	loadLibrary(soname);
Chris@0: 	if (m_libraryHandles.find(soname) == m_libraryHandles.end()) {
Chris@0: 	    std::cerr << "WARNING: DSSIPluginFactory::getDSSIDescriptor: loadLibrary failed for " << soname.toStdString() << std::endl;
Chris@0: 	    return 0;
Chris@0: 	}
Chris@0: 	firstInLibrary = true;
Chris@0:     }
Chris@0: 
Chris@0:     void *libraryHandle = m_libraryHandles[soname];
Chris@0: 
Chris@0:     DSSI_Descriptor_Function fn = (DSSI_Descriptor_Function)
Chris@0: 	DLSYM(libraryHandle, "dssi_descriptor");
Chris@0: 
Chris@0:     if (!fn) {
Chris@0: 	std::cerr << "WARNING: DSSIPluginFactory::getDSSIDescriptor: No descriptor function in library " << soname.toStdString() << std::endl;
Chris@0: 	return 0;
Chris@0:     }
Chris@0: 
Chris@0:     const DSSI_Descriptor *descriptor = 0;
Chris@0:     
Chris@0:     int index = 0;
Chris@0:     while ((descriptor = fn(index))) {
Chris@0: 	if (descriptor->LADSPA_Plugin->Label == label) {
Chris@0: 	    if (firstInLibrary && (descriptor->DSSI_API_Version >= 2)) {
Chris@0: 		descriptor->receive_host_descriptor(&m_hostDescriptor);
Chris@0: 	    }
Chris@0: 	    return descriptor;
Chris@0: 	}
Chris@0: 	++index;
Chris@0:     }
Chris@0: 
Chris@0:     std::cerr << "WARNING: DSSIPluginFactory::getDSSIDescriptor: No such plugin as " << label.toStdString() << " in library " << soname.toStdString() << std::endl;
Chris@0: 
Chris@0:     return 0;
Chris@0: }
Chris@0: 
Chris@0: const LADSPA_Descriptor *
Chris@0: DSSIPluginFactory::getLADSPADescriptor(QString identifier)
Chris@0: {
Chris@0:     const DSSI_Descriptor *dssiDescriptor = getDSSIDescriptor(identifier);
Chris@0:     if (dssiDescriptor) return dssiDescriptor->LADSPA_Plugin;
Chris@0:     else return 0;
Chris@0: }
Chris@0: 
Chris@0: 
Chris@0: std::vector<QString>
Chris@0: DSSIPluginFactory::getPluginPath()
Chris@0: {
Chris@0:     std::vector<QString> pathList;
Chris@0:     std::string path;
Chris@0: 
Chris@0:     char *cpath = getenv("DSSI_PATH");
Chris@0:     if (cpath) path = cpath;
Chris@0: 
Chris@0:     if (path == "") {
Chris@0: 	path = "/usr/local/lib/dssi:/usr/lib/dssi";
Chris@0: 	char *home = getenv("HOME");
Chris@0: 	if (home) path = std::string(home) + "/.dssi:" + path;
Chris@0:     }
Chris@0: 
Chris@0:     std::string::size_type index = 0, newindex = 0;
Chris@0: 
Chris@0:     while ((newindex = path.find(':', index)) < path.size()) {
Chris@0: 	pathList.push_back(path.substr(index, newindex - index).c_str());
Chris@0: 	index = newindex + 1;
Chris@0:     }
Chris@0:     
Chris@0:     pathList.push_back(path.substr(index).c_str());
Chris@0: 
Chris@0:     return pathList;
Chris@0: }
Chris@0: 
Chris@0: 
Chris@0: #ifdef HAVE_LIBLRDF
Chris@0: std::vector<QString>
Chris@0: DSSIPluginFactory::getLRDFPath(QString &baseUri)
Chris@0: {
Chris@0:     std::vector<QString> pathList = getPluginPath();
Chris@0:     std::vector<QString> lrdfPaths;
Chris@0: 
Chris@0:     lrdfPaths.push_back("/usr/local/share/dssi/rdf");
Chris@0:     lrdfPaths.push_back("/usr/share/dssi/rdf");
Chris@0: 
Chris@0:     lrdfPaths.push_back("/usr/local/share/ladspa/rdf");
Chris@0:     lrdfPaths.push_back("/usr/share/ladspa/rdf");
Chris@0: 
Chris@0:     for (std::vector<QString>::iterator i = pathList.begin();
Chris@0: 	 i != pathList.end(); ++i) {
Chris@0: 	lrdfPaths.push_back(*i + "/rdf");
Chris@0:     }
Chris@0: 
Chris@0: #ifdef DSSI_BASE
Chris@0:     baseUri = DSSI_BASE;
Chris@0: #else
Chris@0:     baseUri = "http://dssi.sourceforge.net/ontology#";
Chris@0: #endif
Chris@0: 
Chris@0:     return lrdfPaths;
Chris@0: }    
Chris@0: #endif
Chris@0: 
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginFactory::discoverPlugins(QString soname)
Chris@0: {
Chris@0:     // Note that soname is expected to be a full path at this point,
Chris@0:     // of a file that is known to exist
Chris@0: 
Chris@0:     void *libraryHandle = DLOPEN(soname, RTLD_LAZY);
Chris@0: 
Chris@0:     if (!libraryHandle) {
Chris@0:         std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins: couldn't load plugin library "
Chris@0:                   << soname.toStdString() << " - " << DLERROR() << std::endl;
Chris@0:         return;
Chris@0:     }
Chris@0: 
Chris@0:     DSSI_Descriptor_Function fn = (DSSI_Descriptor_Function)
Chris@0: 	DLSYM(libraryHandle, "dssi_descriptor");
Chris@0: 
Chris@0:     if (!fn) {
Chris@0: 	std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins: No descriptor function in " << soname.toStdString() << std::endl;
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0:     const DSSI_Descriptor *descriptor = 0;
Chris@0:     
Chris@0:     int index = 0;
Chris@0:     while ((descriptor = fn(index))) {
Chris@0: 
Chris@0: 	const LADSPA_Descriptor *ladspaDescriptor = descriptor->LADSPA_Plugin;
Chris@0: 	if (!ladspaDescriptor) {
Chris@0: 	    std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins: No LADSPA descriptor for plugin " << index << " in " << soname.toStdString() << std::endl;
Chris@0: 	    ++index;
Chris@0: 	    continue;
Chris@0: 	}
Chris@0: 
Chris@0: #ifdef HAVE_LIBLRDF
Chris@0: 	char *def_uri = 0;
Chris@0: 	lrdf_defaults *defs = 0;
Chris@0: 		
Chris@0: 	QString category = m_taxonomy[ladspaDescriptor->UniqueID];
Chris@0: 
Chris@0: 	if (category == "" && ladspaDescriptor->Name != 0) {
Chris@0: 	    std::string name = ladspaDescriptor->Name;
Chris@0: 	    if (name.length() > 4 &&
Chris@0: 		name.substr(name.length() - 4) == " VST") {
Chris@0: 		if (descriptor->run_synth || descriptor->run_multiple_synths) {
Chris@0: 		    category = "VST instruments";
Chris@0: 		} else {
Chris@0: 		    category = "VST effects";
Chris@0: 		}
Chris@0: 		m_taxonomy[ladspaDescriptor->UniqueID] = category;
Chris@0: 	    }
Chris@0: 	}
Chris@0: 	
Chris@0: //	std::cerr << "Plugin id is " << ladspaDescriptor->UniqueID
Chris@0: //		  << ", category is \"" << (category ? category : QString("(none)"))
Chris@0: //		  << "\", name is " << ladspaDescriptor->Name
Chris@0: //		  << ", label is " << ladspaDescriptor->Label
Chris@0: //		  << std::endl;
Chris@0: 	
Chris@0: 	def_uri = lrdf_get_default_uri(ladspaDescriptor->UniqueID);
Chris@0: 	if (def_uri) {
Chris@0: 	    defs = lrdf_get_setting_values(def_uri);
Chris@0: 	}
Chris@0: 	
Chris@0: 	int controlPortNumber = 1;
Chris@0: 	
Chris@0: 	for (unsigned long i = 0; i < ladspaDescriptor->PortCount; i++) {
Chris@0: 	    
Chris@0: 	    if (LADSPA_IS_PORT_CONTROL(ladspaDescriptor->PortDescriptors[i])) {
Chris@0: 		
Chris@0: 		if (def_uri && defs) {
Chris@0: 		    
Chris@0: 		    for (int j = 0; j < defs->count; j++) {
Chris@0: 			if (defs->items[j].pid == controlPortNumber) {
Chris@0: //			    std::cerr << "Default for this port (" << defs->items[j].pid << ", " << defs->items[j].label << ") is " << defs->items[j].value << "; applying this to port number " << i << " with name " << ladspaDescriptor->PortNames[i] << std::endl;
Chris@0: 			    m_portDefaults[ladspaDescriptor->UniqueID][i] =
Chris@0: 				defs->items[j].value;
Chris@0: 			}
Chris@0: 		    }
Chris@0: 		}
Chris@0: 		
Chris@0: 		++controlPortNumber;
Chris@0: 	    }
Chris@0: 	}
Chris@0: #endif // HAVE_LIBLRDF
Chris@0: 
Chris@0: 	QString identifier = PluginIdentifier::createIdentifier
Chris@0: 	    ("dssi", soname, ladspaDescriptor->Label);
Chris@0: 	m_identifiers.push_back(identifier);
Chris@0: 
Chris@0: 	++index;
Chris@0:     }
Chris@0: 
Chris@0:     if (DLCLOSE(libraryHandle) != 0) {
Chris@0:         std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins - can't unload " << libraryHandle << std::endl;
Chris@0:         return;
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0:     
Chris@0: