Mercurial > hg > svcore
view plugin/DSSIPluginFactory.cpp @ 76:af2725b5d6fe
* Implement harmonic cursor in spectrogram
* Implement layer export. This doesn't quite do the right thing for the SV
XML layer export yet -- it doesn't include layer display information, so
when imported, it only creates an invisible model. Could also do with
fixing CSV file import so as to work correctly for note and text layers.
author | Chris Cannam |
---|---|
date | Mon, 10 Apr 2006 17:22:59 +0000 |
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; } }