Mercurial > hg > svcore
view plugin/DSSIPluginFactory.cpp @ 106:45175d8c5dc5
* Fix failure to locate plugins by base name of .so file
author | Chris Cannam |
---|---|
date | Fri, 05 May 2006 14:04:43 +0000 (2006-05-05) |
parents | 7afcfe666910 |
children | 4b2ea82fd0ed |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. 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. */ /* This is a modified version of a source file from the Rosegarden MIDI and audio sequencer and notation editor. This file copyright 2000-2006 Chris Cannam. */ #include "DSSIPluginFactory.h" #include <iostream> #include <QString> #include "DSSIPluginInstance.h" #include "PluginIdentifier.h" //!!! #include "plugins/SamplePlayer.h" #include "base/System.h" #ifdef HAVE_LRDF #include "lrdf.h" #endif // HAVE_LRDF DSSIPluginFactory::DSSIPluginFactory() : LADSPAPluginFactory() { m_hostDescriptor.DSSI_API_Version = 2; m_hostDescriptor.request_transport_information = NULL; m_hostDescriptor.request_midi_send = DSSIPluginInstance::requestMidiSend; m_hostDescriptor.request_non_rt_thread = DSSIPluginInstance::requestNonRTThread; m_hostDescriptor.midi_send = DSSIPluginInstance::midiSend; } DSSIPluginFactory::~DSSIPluginFactory() { // nothing else to do here either } void DSSIPluginFactory::enumeratePlugins(std::vector<QString> &list) { for (std::vector<QString>::iterator i = m_identifiers.begin(); i != m_identifiers.end(); ++i) { const DSSI_Descriptor *ddesc = getDSSIDescriptor(*i); if (!ddesc) continue; const LADSPA_Descriptor *descriptor = ddesc->LADSPA_Plugin; if (!descriptor) continue; // std::cerr << "DSSIPluginFactory::enumeratePlugins: Name " << (descriptor->Name ? descriptor->Name : "NONE" ) << std::endl; list.push_back(*i); list.push_back(descriptor->Name); list.push_back(QString("%1").arg(descriptor->UniqueID)); list.push_back(descriptor->Label); list.push_back(descriptor->Maker); list.push_back(descriptor->Copyright); list.push_back((ddesc->run_synth || ddesc->run_multiple_synths) ? "true" : "false"); list.push_back(ddesc->run_multiple_synths ? "true" : "false"); list.push_back(m_taxonomy[descriptor->UniqueID]); list.push_back(QString("%1").arg(descriptor->PortCount)); for (unsigned long p = 0; p < descriptor->PortCount; ++p) { int type = 0; if (LADSPA_IS_PORT_CONTROL(descriptor->PortDescriptors[p])) { type |= PortType::Control; } else { type |= PortType::Audio; } if (LADSPA_IS_PORT_INPUT(descriptor->PortDescriptors[p])) { type |= PortType::Input; } else { type |= PortType::Output; } list.push_back(QString("%1").arg(p)); list.push_back(descriptor->PortNames[p]); list.push_back(QString("%1").arg(type)); list.push_back(QString("%1").arg(getPortDisplayHint(descriptor, p))); list.push_back(QString("%1").arg(getPortMinimum(descriptor, p))); list.push_back(QString("%1").arg(getPortMaximum(descriptor, p))); list.push_back(QString("%1").arg(getPortDefault(descriptor, p))); } } unloadUnusedLibraries(); } RealTimePluginInstance * DSSIPluginFactory::instantiatePlugin(QString identifier, int instrument, int position, unsigned int sampleRate, unsigned int blockSize, unsigned int channels) { const DSSI_Descriptor *descriptor = getDSSIDescriptor(identifier); if (descriptor) { DSSIPluginInstance *instance = new DSSIPluginInstance (this, instrument, identifier, position, sampleRate, blockSize, channels, descriptor); m_instances.insert(instance); return instance; } return 0; } const DSSI_Descriptor * DSSIPluginFactory::getDSSIDescriptor(QString identifier) { QString type, soname, label; PluginIdentifier::parseIdentifier(identifier, type, soname, label); if (soname == PluginIdentifier::BUILTIN_PLUGIN_SONAME) { if (label == "sample_player") { const DSSI_Descriptor *descriptor = SamplePlayer::getDescriptor(0); if (descriptor) { descriptor->receive_host_descriptor(&m_hostDescriptor); } return descriptor; } else { return 0; } } bool firstInLibrary = false; if (m_libraryHandles.find(soname) == m_libraryHandles.end()) { loadLibrary(soname); if (m_libraryHandles.find(soname) == m_libraryHandles.end()) { std::cerr << "WARNING: DSSIPluginFactory::getDSSIDescriptor: loadLibrary failed for " << soname.toStdString() << std::endl; return 0; } firstInLibrary = true; } void *libraryHandle = m_libraryHandles[soname]; DSSI_Descriptor_Function fn = (DSSI_Descriptor_Function) DLSYM(libraryHandle, "dssi_descriptor"); if (!fn) { std::cerr << "WARNING: DSSIPluginFactory::getDSSIDescriptor: No descriptor function in library " << soname.toStdString() << std::endl; return 0; } const DSSI_Descriptor *descriptor = 0; int index = 0; while ((descriptor = fn(index))) { if (descriptor->LADSPA_Plugin->Label == label) { if (firstInLibrary && (descriptor->DSSI_API_Version >= 2)) { descriptor->receive_host_descriptor(&m_hostDescriptor); } return descriptor; } ++index; } std::cerr << "WARNING: DSSIPluginFactory::getDSSIDescriptor: No such plugin as " << label.toStdString() << " in library " << soname.toStdString() << std::endl; return 0; } const LADSPA_Descriptor * DSSIPluginFactory::getLADSPADescriptor(QString identifier) { const DSSI_Descriptor *dssiDescriptor = getDSSIDescriptor(identifier); if (dssiDescriptor) return dssiDescriptor->LADSPA_Plugin; else return 0; } std::vector<QString> DSSIPluginFactory::getPluginPath() { std::vector<QString> pathList; std::string path; char *cpath = getenv("DSSI_PATH"); if (cpath) path = cpath; if (path == "") { path = "/usr/local/lib/dssi:/usr/lib/dssi"; char *home = getenv("HOME"); if (home) { path = std::string(home) + "/dssi:" + std::string(home) + "/.dssi:" + path; } } std::string::size_type index = 0, newindex = 0; while ((newindex = path.find(':', index)) < path.size()) { pathList.push_back(path.substr(index, newindex - index).c_str()); index = newindex + 1; } pathList.push_back(path.substr(index).c_str()); return pathList; } #ifdef HAVE_LRDF std::vector<QString> DSSIPluginFactory::getLRDFPath(QString &baseUri) { std::vector<QString> pathList = getPluginPath(); std::vector<QString> lrdfPaths; lrdfPaths.push_back("/usr/local/share/dssi/rdf"); lrdfPaths.push_back("/usr/share/dssi/rdf"); lrdfPaths.push_back("/usr/local/share/ladspa/rdf"); lrdfPaths.push_back("/usr/share/ladspa/rdf"); for (std::vector<QString>::iterator i = pathList.begin(); i != pathList.end(); ++i) { lrdfPaths.push_back(*i + "/rdf"); } #ifdef DSSI_BASE baseUri = DSSI_BASE; #else baseUri = "http://dssi.sourceforge.net/ontology#"; #endif return lrdfPaths; } #endif void DSSIPluginFactory::discoverPlugins(QString soname) { // Note that soname is expected to be a full path at this point, // of a file that is known to exist void *libraryHandle = DLOPEN(soname, RTLD_LAZY); if (!libraryHandle) { std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins: couldn't load plugin library " << soname.toStdString() << " - " << DLERROR() << std::endl; return; } DSSI_Descriptor_Function fn = (DSSI_Descriptor_Function) DLSYM(libraryHandle, "dssi_descriptor"); if (!fn) { std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins: No descriptor function in " << soname.toStdString() << std::endl; return; } const DSSI_Descriptor *descriptor = 0; int index = 0; while ((descriptor = fn(index))) { const LADSPA_Descriptor *ladspaDescriptor = descriptor->LADSPA_Plugin; if (!ladspaDescriptor) { std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins: No LADSPA descriptor for plugin " << index << " in " << soname.toStdString() << std::endl; ++index; continue; } RealTimePluginDescriptor *rtd = new RealTimePluginDescriptor; rtd->name = ladspaDescriptor->Name; rtd->label = ladspaDescriptor->Label; rtd->maker = ladspaDescriptor->Maker; rtd->copyright = ladspaDescriptor->Copyright; rtd->category = ""; rtd->isSynth = (descriptor->run_synth || descriptor->run_multiple_synths); rtd->parameterCount = 0; rtd->audioInputPortCount = 0; rtd->controlOutputPortCount = 0; #ifdef HAVE_LRDF char *def_uri = 0; lrdf_defaults *defs = 0; QString category = m_taxonomy[ladspaDescriptor->UniqueID]; if (category == "" && ladspaDescriptor->Name != 0) { std::string name = ladspaDescriptor->Name; if (name.length() > 4 && name.substr(name.length() - 4) == " VST") { if (descriptor->run_synth || descriptor->run_multiple_synths) { category = "VST instruments"; } else { category = "VST effects"; } m_taxonomy[ladspaDescriptor->UniqueID] = category; } } rtd->category = category.toStdString(); // std::cerr << "Plugin id is " << ladspaDescriptor->UniqueID // << ", category is \"" << (category ? category : QString("(none)")) // << "\", name is " << ladspaDescriptor->Name // << ", label is " << ladspaDescriptor->Label // << std::endl; def_uri = lrdf_get_default_uri(ladspaDescriptor->UniqueID); if (def_uri) { defs = lrdf_get_setting_values(def_uri); } int controlPortNumber = 1; for (unsigned long i = 0; i < ladspaDescriptor->PortCount; i++) { if (LADSPA_IS_PORT_CONTROL(ladspaDescriptor->PortDescriptors[i])) { if (def_uri && defs) { for (int j = 0; j < defs->count; j++) { if (defs->items[j].pid == controlPortNumber) { // 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; m_portDefaults[ladspaDescriptor->UniqueID][i] = defs->items[j].value; } } } ++controlPortNumber; } } #endif // HAVE_LRDF for (unsigned long i = 0; i < ladspaDescriptor->PortCount; i++) { if (LADSPA_IS_PORT_CONTROL(ladspaDescriptor->PortDescriptors[i])) { if (LADSPA_IS_PORT_INPUT(ladspaDescriptor->PortDescriptors[i])) { ++rtd->parameterCount; } else { if (strcmp(ladspaDescriptor->PortNames[i], "latency") && strcmp(ladspaDescriptor->PortNames[i], "_latency")) { ++rtd->controlOutputPortCount; rtd->controlOutputPortNames.push_back (ladspaDescriptor->PortNames[i]); } } } else { if (LADSPA_IS_PORT_INPUT(ladspaDescriptor->PortDescriptors[i])) { ++rtd->audioInputPortCount; } } } QString identifier = PluginIdentifier::createIdentifier ("dssi", soname, ladspaDescriptor->Label); m_identifiers.push_back(identifier); m_rtDescriptors[identifier] = rtd; ++index; } if (DLCLOSE(libraryHandle) != 0) { std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins - can't unload " << libraryHandle << std::endl; return; } }