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rosegarden/src/sound/DSSIPluginFactory.cpp

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/*
Rosegarden
A sequencer and musical notation editor.
This program is Copyright 2000-2008
Guillaume Laurent <glaurent@telegraph-road.org>,
Chris Cannam <cannam@all-day-breakfast.com>,
Richard Bown <bownie@bownie.com>
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 "DSSIPluginFactory.h"
#include <iostream>
#include <cstdlib>
#ifdef HAVE_DSSI
#include <dlfcn.h>
#include "AudioPluginInstance.h"
#include "DSSIPluginInstance.h"
#include "MappedStudio.h"
#include "PluginIdentifier.h"
#ifdef HAVE_LIBLRDF
#include "lrdf.h"
#endif // HAVE_LIBLRDF
namespace Rosegarden
{
DSSIPluginFactory::DSSIPluginFactory() :
LADSPAPluginFactory()
{
// nothing else to do
}
DSSIPluginFactory::~DSSIPluginFactory()
{
// nothing else to do here either
}
void
DSSIPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
{
for (std::vector<TQString>::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(TQString("%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(TQString("%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 |= PluginPort::Control;
} else {
type |= PluginPort::Audio;
}
if (LADSPA_IS_PORT_INPUT(descriptor->PortDescriptors[p])) {
type |= PluginPort::Input;
} else {
type |= PluginPort::Output;
}
list.push_back(TQString("%1").arg(p));
list.push_back(descriptor->PortNames[p]);
list.push_back(TQString("%1").arg(type));
list.push_back(TQString("%1").arg(getPortDisplayHint(descriptor, p)));
list.push_back(TQString("%1").arg(getPortMinimum(descriptor, p)));
list.push_back(TQString("%1").arg(getPortMaximum(descriptor, p)));
list.push_back(TQString("%1").arg(getPortDefault(descriptor, p)));
}
}
unloadUnusedLibraries();
}
void
DSSIPluginFactory::populatePluginSlot(TQString identifier, MappedPluginSlot &slot)
{
const LADSPA_Descriptor *descriptor = getLADSPADescriptor(identifier);
if (!descriptor)
return ;
if (descriptor) {
slot.setProperty(MappedPluginSlot::Label, descriptor->Label);
slot.setProperty(MappedPluginSlot::PluginName, descriptor->Name);
slot.setProperty(MappedPluginSlot::Author, descriptor->Maker);
slot.setProperty(MappedPluginSlot::Copyright, descriptor->Copyright);
slot.setProperty(MappedPluginSlot::PortCount, descriptor->PortCount);
slot.setProperty(MappedPluginSlot::Category, m_taxonomy[descriptor->UniqueID]);
slot.destroyChildren();
for (unsigned long i = 0; i < descriptor->PortCount; i++) {
if (LADSPA_IS_PORT_CONTROL(descriptor->PortDescriptors[i]) &&
LADSPA_IS_PORT_INPUT(descriptor->PortDescriptors[i])) {
MappedStudio *studio = dynamic_cast<MappedStudio *>(slot.getParent());
if (!studio) {
std::cerr << "WARNING: DSSIPluginFactory::populatePluginSlot: can't find studio" << std::endl;
return ;
}
MappedPluginPort *port =
dynamic_cast<MappedPluginPort *>
(studio->createObject(MappedObject::PluginPort));
slot.addChild(port);
port->setParent(&slot);
port->setProperty(MappedPluginPort::PortNumber, i);
port->setProperty(MappedPluginPort::Name,
descriptor->PortNames[i]);
port->setProperty(MappedPluginPort::Maximum,
getPortMaximum(descriptor, i));
port->setProperty(MappedPluginPort::Minimum,
getPortMinimum(descriptor, i));
port->setProperty(MappedPluginPort::Default,
getPortDefault(descriptor, i));
port->setProperty(MappedPluginPort::DisplayHint,
getPortDisplayHint(descriptor, i));
}
}
}
//!!! leak here if the plugin is not instantiated too...?
}
RunnablePluginInstance *
DSSIPluginFactory::instantiatePlugin(TQString 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(TQString identifier)
{
TQString type, soname, label;
PluginIdentifier::parseIdentifier(identifier, type, soname, label);
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.ascii() << std::endl;
return 0;
}
}
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.ascii() << std::endl;
return 0;
}
const DSSI_Descriptor *descriptor = 0;
int index = 0;
while ((descriptor = fn(index))) {
if (descriptor->LADSPA_Plugin->Label == label)
return descriptor;
++index;
}
std::cerr << "WARNING: DSSIPluginFactory::getDSSIDescriptor: No such plugin as " << label.ascii() << " in library " << soname.ascii() << std::endl;
return 0;
}
const LADSPA_Descriptor *
DSSIPluginFactory::getLADSPADescriptor(TQString identifier)
{
const DSSI_Descriptor *dssiDescriptor = getDSSIDescriptor(identifier);
if (dssiDescriptor)
return dssiDescriptor->LADSPA_Plugin;
else
return 0;
}
std::vector<TQString>
DSSIPluginFactory::getPluginPath()
{
std::vector<TQString> 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:" + 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_LIBLRDF
std::vector<TQString>
DSSIPluginFactory::getLRDFPath(TQString &baseUri)
{
std::vector<TQString> pathList = getPluginPath();
std::vector<TQString> 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<TQString>::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(TQString soName)
{
void *libraryHandle = dlopen(soName.ascii(), RTLD_LAZY);
if (!libraryHandle) {
std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins: couldn't dlopen "
<< soName.ascii() << " - " << 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.ascii() << 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.ascii() << std::endl;
++index;
continue;
}
#ifdef HAVE_LIBLRDF
char *def_uri = 0;
lrdf_defaults *defs = 0;
TQString 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;
}
}
// std::cerr << "Plugin id is " << ladspaDescriptor->UniqueID
// << ", category is \"" << (category ? category : TQString("(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_LIBLRDF
TQString identifier = PluginIdentifier::createIdentifier
("dssi", soName, ladspaDescriptor->Label);
m_identifiers.push_back(identifier);
++index;
}
if (dlclose(libraryHandle) != 0) {
std::cerr << "WARNING: DSSIPluginFactory::discoverPlugins - can't unload " << libraryHandle << std::endl;
return ;
}
}
}
#endif // HAVE_DSSI