Chris@49: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@52:     Sonic Visualiser
Chris@52:     An audio file viewer and annotation editor.
Chris@52:     Centre for Digital Music, Queen Mary, University of London.
Chris@0:     
Chris@52:     This program is free software; you can redistribute it and/or
Chris@52:     modify it under the terms of the GNU General Public License as
Chris@52:     published by the Free Software Foundation; either version 2 of the
Chris@52:     License, or (at your option) any later version.  See the file
Chris@52:     COPYING included with this distribution for more information.
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@17:    This file copyright 2000-2006 Chris Cannam.
Chris@0: */
Chris@0: 
Chris@0: #include <iostream>
Chris@0: #include <cassert>
Chris@0: 
Chris@0: #include "DSSIPluginInstance.h"
Chris@0: #include "PluginIdentifier.h"
Chris@0: #include "LADSPAPluginFactory.h"
Chris@0: 
Chris@117: //#define DEBUG_DSSI 1
Chris@0: //#define DEBUG_DSSI_PROCESS 1
Chris@0: 
Chris@0: #define EVENT_BUFFER_SIZE 1023
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI
Chris@0: static std::ostream &operator<<(std::ostream& o, const QString &s)
Chris@0: {
Chris@0:     o << s.toLocal8Bit().data();
Chris@0:     return o;
Chris@0: }
Chris@0: #endif
Chris@0: 
Chris@0: DSSIPluginInstance::GroupMap DSSIPluginInstance::m_groupMap;
Chris@0: snd_seq_event_t **DSSIPluginInstance::m_groupLocalEventBuffers = 0;
Chris@0: size_t DSSIPluginInstance::m_groupLocalEventBufferCount = 0;
Chris@0: Scavenger<ScavengerArrayWrapper<snd_seq_event_t *> > DSSIPluginInstance::m_bufferScavenger(2, 10);
Chris@0: std::map<LADSPA_Handle, std::set<DSSIPluginInstance::NonRTPluginThread *> > DSSIPluginInstance::m_threads;
Chris@0: 
Chris@0: 
Chris@0: DSSIPluginInstance::DSSIPluginInstance(RealTimePluginFactory *factory,
Chris@0: 				       int clientId,
Chris@0: 				       QString identifier,
Chris@0: 				       int position,
Chris@0: 				       unsigned long sampleRate,
Chris@0: 				       size_t blockSize,
Chris@0: 				       int idealChannelCount,
Chris@0: 				       const DSSI_Descriptor* descriptor) :
Chris@0:     RealTimePluginInstance(factory, identifier),
Chris@0:     m_client(clientId),
Chris@0:     m_position(position),
Chris@0:     m_descriptor(descriptor),
Chris@0:     m_programCacheValid(false),
Chris@0:     m_eventBuffer(EVENT_BUFFER_SIZE),
Chris@0:     m_blockSize(blockSize),
Chris@0:     m_idealChannelCount(idealChannelCount),
Chris@0:     m_sampleRate(sampleRate),
Chris@0:     m_latencyPort(0),
Chris@0:     m_run(false),
Chris@0:     m_bypassed(false),
Chris@10:     m_grouped(false),
Chris@10:     m_haveLastEventSendTime(false)
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::DSSIPluginInstance(" << identifier << ")"
Chris@0: 	      << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     init();
Chris@0: 
Chris@0:     m_inputBuffers  = new sample_t*[m_audioPortsIn.size()];
Chris@0:     m_outputBuffers = new sample_t*[m_outputBufferCount];
Chris@0: 
Chris@0:     for (size_t i = 0; i < m_audioPortsIn.size(); ++i) {
Chris@0: 	m_inputBuffers[i] = new sample_t[blockSize];
Chris@0:     }
Chris@0:     for (size_t i = 0; i < m_outputBufferCount; ++i) {
Chris@0: 	m_outputBuffers[i] = new sample_t[blockSize];
Chris@0:     }
Chris@0: 
Chris@0:     m_ownBuffers = true;
Chris@0: 
Chris@0:     m_pending.lsb = m_pending.msb = m_pending.program = -1;
Chris@0: 
Chris@0:     instantiate(sampleRate);
Chris@0:     if (isOK()) {
Chris@0: 	connectPorts();
Chris@0: 	activate();
Chris@0: 	initialiseGroupMembership();
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@51: std::string
Chris@239: DSSIPluginInstance::getIdentifier() const
Chris@239: {
Chris@239:     return m_descriptor->LADSPA_Plugin->Label;
Chris@239: }
Chris@239: 
Chris@239: std::string
Chris@51: DSSIPluginInstance::getName() const
Chris@0: {
Chris@239:     return m_descriptor->LADSPA_Plugin->Name;
Chris@0: }
Chris@0: 
Chris@51: std::string 
Chris@51: DSSIPluginInstance::getDescription() const
Chris@51: {
Chris@239:     return "";
Chris@51: }
Chris@51: 
Chris@51: std::string
Chris@51: DSSIPluginInstance::getMaker() const
Chris@51: {
Chris@51:     return m_descriptor->LADSPA_Plugin->Maker;
Chris@51: }
Chris@51: 
Chris@51: int
Chris@51: DSSIPluginInstance::getPluginVersion() const
Chris@51: {
Chris@51:     return 1;
Chris@51: }
Chris@51: 
Chris@51: std::string
Chris@51: DSSIPluginInstance::getCopyright() const
Chris@51: {
Chris@51:     return m_descriptor->LADSPA_Plugin->Copyright;
Chris@51: }
Chris@51: 
Chris@51: DSSIPluginInstance::ParameterList
Chris@51: DSSIPluginInstance::getParameterDescriptors() const
Chris@51: {
Chris@51:     ParameterList list;
Chris@51:     LADSPAPluginFactory *f = dynamic_cast<LADSPAPluginFactory *>(m_factory);
Chris@51:     
Chris@51:     for (unsigned int i = 0; i < m_controlPortsIn.size(); ++i) {
Chris@51:         
Chris@51:         ParameterDescriptor pd;
Chris@51:         unsigned int pn = m_controlPortsIn[i].first;
Chris@51: 
Chris@239:         pd.identifier = m_descriptor->LADSPA_Plugin->PortNames[pn];
Chris@239:         pd.name = pd.identifier;
Chris@239:         pd.description = "";
Chris@51:         pd.minValue = f->getPortMinimum(m_descriptor->LADSPA_Plugin, pn);
Chris@51:         pd.maxValue = f->getPortMaximum(m_descriptor->LADSPA_Plugin, pn);
Chris@51:         pd.defaultValue = f->getPortDefault(m_descriptor->LADSPA_Plugin, pn);
Chris@57: 
Chris@57:         float q = f->getPortQuantization(m_descriptor->LADSPA_Plugin, pn);
Chris@57:         if (q == 0.0) {
Chris@57:             pd.isQuantized = false;
Chris@57:         } else {
Chris@57:             pd.isQuantized = true;
Chris@57:             pd.quantizeStep = q;
Chris@57:         }
Chris@51: 
Chris@51:         list.push_back(pd);
Chris@51:     }
Chris@51: 
Chris@51:     return list;
Chris@51: }
Chris@51: 
Chris@51: float
Chris@239: DSSIPluginInstance::getParameter(std::string id) const
Chris@51: {
Chris@117: #ifdef DEBUG_DSSI
Chris@239:     std::cerr << "DSSIPluginInstance::getParameter(" << id << ")" << std::endl;
Chris@117: #endif
Chris@51:     for (unsigned int i = 0; i < m_controlPortsIn.size(); ++i) {
Chris@239:         if (id == m_descriptor->LADSPA_Plugin->PortNames[m_controlPortsIn[i].first]) {
Chris@117: #ifdef DEBUG_DSSI
Chris@57:             std::cerr << "Matches port " << i << std::endl;
Chris@117: #endif
Chris@57:             float v = getParameterValue(i);
Chris@117: #ifdef DEBUG_DSSI
Chris@57:             std::cerr << "Returning " << v << std::endl;
Chris@117: #endif
Chris@57:             return v;
Chris@51:         }
Chris@51:     }
Chris@51: 
Chris@51:     return 0.0;
Chris@51: }
Chris@51: 
Chris@51: void
Chris@239: DSSIPluginInstance::setParameter(std::string id, float value)
Chris@51: {
Chris@117: #ifdef DEBUG_DSSI
Chris@239:     std::cerr << "DSSIPluginInstance::setParameter(" << id << ", " << value << ")" << std::endl;
Chris@117: #endif
Chris@57: 
Chris@51:     for (unsigned int i = 0; i < m_controlPortsIn.size(); ++i) {
Chris@239:         if (id == m_descriptor->LADSPA_Plugin->PortNames[m_controlPortsIn[i].first]) {
Chris@51:             setParameterValue(i, value);
Chris@51:             break;
Chris@51:         }
Chris@51:     }
Chris@51: }    
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::init()
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::init" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     // Discover ports numbers and identities
Chris@0:     //
Chris@0:     const LADSPA_Descriptor *descriptor = m_descriptor->LADSPA_Plugin;
Chris@0: 
Chris@0:     for (unsigned long i = 0; i < descriptor->PortCount; ++i)
Chris@0:     {
Chris@0:         if (LADSPA_IS_PORT_AUDIO(descriptor->PortDescriptors[i]))
Chris@0:         {
Chris@0:             if (LADSPA_IS_PORT_INPUT(descriptor->PortDescriptors[i])) {
Chris@0:                 m_audioPortsIn.push_back(i);
Chris@0: 	    } else {
Chris@0:                 m_audioPortsOut.push_back(i);
Chris@0: 	    }
Chris@0:         }
Chris@0:         else
Chris@0:         if (LADSPA_IS_PORT_CONTROL(descriptor->PortDescriptors[i]))
Chris@0:         {
Chris@0: 	    if (LADSPA_IS_PORT_INPUT(descriptor->PortDescriptors[i])) {
Chris@0: 
Chris@0: 		LADSPA_Data *data = new LADSPA_Data(0.0);
Chris@0: 
Chris@0: 		m_controlPortsIn.push_back(std::pair<unsigned long, LADSPA_Data*>
Chris@0: 					   (i, data));
Chris@0: 
Chris@0: 		m_backupControlPortsIn.push_back(0.0);
Chris@0: 
Chris@0: 	    } else {
Chris@0: 		LADSPA_Data *data = new LADSPA_Data(0.0);
Chris@0: 		m_controlPortsOut.push_back(
Chris@0:                     std::pair<unsigned long, LADSPA_Data*>(i, data));
Chris@0: 		if (!strcmp(descriptor->PortNames[i], "latency") ||
Chris@0: 		    !strcmp(descriptor->PortNames[i], "_latency")) {
Chris@0: #ifdef DEBUG_DSSI
Chris@0: 		    std::cerr << "Wooo! We have a latency port!" << std::endl;
Chris@0: #endif
Chris@0: 		    m_latencyPort = data;
Chris@0: 		}
Chris@0: 	    }
Chris@0:         }
Chris@0: #ifdef DEBUG_DSSI
Chris@0:         else
Chris@0:             std::cerr << "DSSIPluginInstance::DSSIPluginInstance - "
Chris@0:                       << "unrecognised port type" << std::endl;
Chris@0: #endif
Chris@0:     }
Chris@0: 
Chris@0:     m_outputBufferCount = std::max(m_idealChannelCount, m_audioPortsOut.size());
Chris@0: }
Chris@0: 
Chris@0: size_t
Chris@0: DSSIPluginInstance::getLatency()
Chris@0: {
Chris@0:     size_t latency = 0;
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0:     std::cerr << "DSSIPluginInstance::getLatency(): m_latencyPort " << m_latencyPort << ", m_run " << m_run << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     if (m_latencyPort) {
Chris@66: 	if (!m_run) run(Vamp::RealTime::zeroTime);
Chris@0: 	latency = (size_t)(*m_latencyPort + 0.1);
Chris@0:     }
Chris@0:     
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0:     std::cerr << "DSSIPluginInstance::getLatency(): latency is " << latency << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     return latency;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::silence()
Chris@0: {
Chris@0:     if (m_instanceHandle != 0) {
Chris@0: 	deactivate();
Chris@0: 	activate();
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::discardEvents()
Chris@0: {
Chris@0:     m_eventBuffer.reset();
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::setIdealChannelCount(size_t channels)
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::setIdealChannelCount: channel count "
Chris@0: 	      << channels << " (was " << m_idealChannelCount << ")" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     if (channels == m_idealChannelCount) {
Chris@0: 	silence();
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0:     if (m_instanceHandle != 0) {
Chris@0: 	deactivate();
Chris@0:     }
Chris@0: 
Chris@0:     m_idealChannelCount = channels;
Chris@0: 
Chris@0:     if (channels > m_outputBufferCount) {
Chris@0: 
Chris@0: 	for (size_t i = 0; i < m_outputBufferCount; ++i) {
Chris@0: 	    delete[] m_outputBuffers[i];
Chris@0: 	}
Chris@0: 
Chris@0: 	delete[] m_outputBuffers;
Chris@0: 
Chris@0: 	m_outputBufferCount = channels;
Chris@0: 
Chris@0: 	m_outputBuffers = new sample_t*[m_outputBufferCount];
Chris@0: 
Chris@0: 	for (size_t i = 0; i < m_outputBufferCount; ++i) {
Chris@0: 	    m_outputBuffers[i] = new sample_t[m_blockSize];
Chris@0: 	}
Chris@0: 
Chris@0: 	connectPorts();
Chris@0:     }
Chris@0: 
Chris@0:     if (m_instanceHandle != 0) {
Chris@0: 	activate();
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::detachFromGroup()
Chris@0: {
Chris@0:     if (!m_grouped) return;
Chris@0:     m_groupMap[m_identifier].erase(this);
Chris@0:     m_grouped = false;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::initialiseGroupMembership()
Chris@0: {
Chris@0:     if (!m_descriptor->run_multiple_synths) {
Chris@0: 	m_grouped = false;
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0:     //!!! GroupMap is not actually thread-safe.
Chris@0: 
Chris@0:     size_t pluginsInGroup = m_groupMap[m_identifier].size();
Chris@0: 
Chris@0:     if (++pluginsInGroup > m_groupLocalEventBufferCount) {
Chris@0: 
Chris@0: 	size_t nextBufferCount = pluginsInGroup * 2;
Chris@0: 
Chris@0: 	snd_seq_event_t **eventLocalBuffers = new snd_seq_event_t *[nextBufferCount];
Chris@0: 
Chris@0: 	for (size_t i = 0; i < m_groupLocalEventBufferCount; ++i) {
Chris@0: 	    eventLocalBuffers[i] = m_groupLocalEventBuffers[i];
Chris@0: 	}
Chris@0: 	for (size_t i = m_groupLocalEventBufferCount; i < nextBufferCount; ++i) {
Chris@0: 	    eventLocalBuffers[i] = new snd_seq_event_t[EVENT_BUFFER_SIZE];
Chris@0: 	}
Chris@0: 
Chris@0: 	if (m_groupLocalEventBuffers) {
Chris@0: 	    m_bufferScavenger.claim(new ScavengerArrayWrapper<snd_seq_event_t *>
Chris@0: 				    (m_groupLocalEventBuffers));
Chris@0: 	}
Chris@0: 
Chris@0: 	m_groupLocalEventBuffers = eventLocalBuffers;
Chris@0: 	m_groupLocalEventBufferCount = nextBufferCount;
Chris@0:     }
Chris@0: 
Chris@0:     m_grouped = true;
Chris@0:     m_groupMap[m_identifier].insert(this);
Chris@0: }
Chris@0: 
Chris@0: DSSIPluginInstance::~DSSIPluginInstance()
Chris@0: {
Chris@117: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::~DSSIPluginInstance" << std::endl;
Chris@117: #endif
Chris@0: 
Chris@0:     if (m_threads.find(m_instanceHandle) != m_threads.end()) {
Chris@0: 
Chris@0: 	for (std::set<NonRTPluginThread *>::iterator i =
Chris@0: 		 m_threads[m_instanceHandle].begin();
Chris@0: 	     i != m_threads[m_instanceHandle].end(); ++i) {
Chris@0: 
Chris@0: 	    (*i)->setExiting();
Chris@0: 	    (*i)->wait();
Chris@0: 	    delete *i;
Chris@0: 	}
Chris@0: 
Chris@0: 	m_threads.erase(m_instanceHandle);
Chris@0:     }
Chris@0: 
Chris@0:     detachFromGroup();
Chris@0: 
Chris@0:     if (m_instanceHandle != 0) {
Chris@0: 	deactivate();
Chris@0:     }
Chris@0: 
Chris@0:     cleanup();
Chris@0: 
Chris@0:     for (unsigned int i = 0; i < m_controlPortsIn.size(); ++i)
Chris@0:         delete m_controlPortsIn[i].second;
Chris@0: 
Chris@0:     for (unsigned int i = 0; i < m_controlPortsOut.size(); ++i)
Chris@0:         delete m_controlPortsOut[i].second;
Chris@0: 
Chris@0:     m_controlPortsIn.clear();
Chris@0:     m_controlPortsOut.clear();
Chris@0: 
Chris@0:     if (m_ownBuffers) {
Chris@0: 	for (size_t i = 0; i < m_audioPortsIn.size(); ++i) {
Chris@0: 	    delete[] m_inputBuffers[i];
Chris@0: 	}
Chris@0: 	for (size_t i = 0; i < m_outputBufferCount; ++i) {
Chris@0: 	    delete[] m_outputBuffers[i];
Chris@0: 	}
Chris@0: 
Chris@0: 	delete[] m_inputBuffers;
Chris@0: 	delete[] m_outputBuffers;
Chris@0:     }
Chris@0: 
Chris@0:     m_audioPortsIn.clear();
Chris@0:     m_audioPortsOut.clear();
Chris@0: }
Chris@0: 
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::instantiate(unsigned long sampleRate)
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cout << "DSSIPluginInstance::instantiate - plugin \"unique\" id = "
Chris@0:               << m_descriptor->LADSPA_Plugin->UniqueID << std::endl;
Chris@0: #endif
Chris@0:     if (!m_descriptor) return;
Chris@0: 
Chris@0:     const LADSPA_Descriptor *descriptor = m_descriptor->LADSPA_Plugin;
Chris@0: 
Chris@0:     if (!descriptor->instantiate) {
Chris@0: 	std::cerr << "Bad plugin: plugin id " << descriptor->UniqueID
Chris@0: 		  << ":" << descriptor->Label
Chris@0: 		  << " has no instantiate method!" << std::endl;
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0:     m_instanceHandle = descriptor->instantiate(descriptor, sampleRate);
Chris@0: 
Chris@0:     if (m_instanceHandle) {
Chris@0: 
Chris@0: 	if (m_descriptor->get_midi_controller_for_port) {
Chris@0: 
Chris@0: 	    for (unsigned long i = 0; i < descriptor->PortCount; ++i) {
Chris@0: 
Chris@0: 		if (LADSPA_IS_PORT_CONTROL(descriptor->PortDescriptors[i]) &&
Chris@0: 		    LADSPA_IS_PORT_INPUT(descriptor->PortDescriptors[i])) {
Chris@0: 
Chris@0: 		    int controller = m_descriptor->get_midi_controller_for_port
Chris@0: 			(m_instanceHandle, i);
Chris@0: 
Chris@0: 		    if (controller != 0 && controller != 32 &&
Chris@0: 			DSSI_IS_CC(controller)) {
Chris@0: 
Chris@0: 			m_controllerMap[DSSI_CC_NUMBER(controller)] = i;
Chris@0: 		    }
Chris@0: 		}
Chris@0: 	    }
Chris@0: 	}
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::checkProgramCache() const
Chris@0: {
Chris@0:     if (m_programCacheValid) return;
Chris@0:     m_cachedPrograms.clear();
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::checkProgramCache" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     if (!m_descriptor || !m_descriptor->get_program) {
Chris@0: 	m_programCacheValid = true;
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0:     unsigned long index = 0;
Chris@0:     const DSSI_Program_Descriptor *programDescriptor;
Chris@0:     while ((programDescriptor = m_descriptor->get_program(m_instanceHandle, index))) {
Chris@0: 	++index;
Chris@0: 	ProgramDescriptor d;
Chris@0: 	d.bank = programDescriptor->Bank;
Chris@0: 	d.program = programDescriptor->Program;
Chris@0: 	d.name = programDescriptor->Name;
Chris@0: 	m_cachedPrograms.push_back(d);
Chris@0:     }
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::checkProgramCache: have " << m_cachedPrograms.size() << " programs" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     m_programCacheValid = true;
Chris@0: }
Chris@0: 
Chris@51: DSSIPluginInstance::ProgramList
Chris@0: DSSIPluginInstance::getPrograms() const
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::getPrograms" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@51:     if (!m_descriptor) return ProgramList();
Chris@0: 
Chris@0:     checkProgramCache();
Chris@0: 
Chris@51:     ProgramList programs;
Chris@0: 
Chris@0:     for (std::vector<ProgramDescriptor>::iterator i = m_cachedPrograms.begin();
Chris@0: 	 i != m_cachedPrograms.end(); ++i) {
Chris@0: 	programs.push_back(i->name);
Chris@0:     }
Chris@0: 
Chris@0:     return programs;
Chris@0: }
Chris@0: 
Chris@51: std::string
Chris@0: DSSIPluginInstance::getProgram(int bank, int program) const
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::getProgram(" << bank << "," << program << ")" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@51:     if (!m_descriptor) return std::string();
Chris@0: 
Chris@0:     checkProgramCache();
Chris@0: 
Chris@0:     for (std::vector<ProgramDescriptor>::iterator i = m_cachedPrograms.begin();
Chris@0: 	 i != m_cachedPrograms.end(); ++i) {
Chris@0: 	if (i->bank == bank && i->program == program) return i->name;
Chris@0:     }
Chris@0: 
Chris@51:     return std::string();
Chris@0: }
Chris@0: 
Chris@0: unsigned long
Chris@51: DSSIPluginInstance::getProgram(std::string name) const
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::getProgram(" << name << ")" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     if (!m_descriptor) return 0;
Chris@0: 
Chris@0:     checkProgramCache();
Chris@0: 
Chris@0:     unsigned long rv;
Chris@0: 
Chris@0:     for (std::vector<ProgramDescriptor>::iterator i = m_cachedPrograms.begin();
Chris@0: 	 i != m_cachedPrograms.end(); ++i) {
Chris@0: 	if (i->name == name) {
Chris@0: 	    rv = i->bank;
Chris@0: 	    rv = (rv << 16) + i->program;
Chris@0: 	    return rv;
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     return 0;
Chris@0: }
Chris@0: 
Chris@51: std::string
Chris@0: DSSIPluginInstance::getCurrentProgram() const
Chris@0: {
Chris@0:     return m_program;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@51: DSSIPluginInstance::selectProgram(std::string program)
Chris@0: {
Chris@0:     selectProgramAux(program, true);
Chris@0: }
Chris@0: 
Chris@0: void
Chris@51: DSSIPluginInstance::selectProgramAux(std::string program, bool backupPortValues)
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::selectProgram(" << program << ")" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     if (!m_descriptor) return;
Chris@0: 
Chris@0:     checkProgramCache();
Chris@0: 
Chris@0:     if (!m_descriptor->select_program) return;
Chris@0: 
Chris@0:     bool found = false;
Chris@0:     unsigned long bankNo = 0, programNo = 0;
Chris@0: 
Chris@0:     for (std::vector<ProgramDescriptor>::iterator i = m_cachedPrograms.begin();
Chris@0: 	 i != m_cachedPrograms.end(); ++i) {
Chris@0: 
Chris@0: 	if (i->name == program) {
Chris@0: 
Chris@0: 	    bankNo = i->bank;
Chris@0: 	    programNo = i->program;
Chris@0: 	    found = true;
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI
Chris@0: 	    std::cerr << "DSSIPluginInstance::selectProgram(" << program << "): found at bank " << bankNo << ", program " << programNo << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0: 	    break;
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     if (!found) return;
Chris@0:     m_program = program;
Chris@0: 
Chris@0:     // DSSI select_program is an audio context call
Chris@0:     m_processLock.lock();
Chris@0:     m_descriptor->select_program(m_instanceHandle, bankNo, programNo);
Chris@0:     m_processLock.unlock();
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::selectProgram(" << program << "): made select_program(" << bankNo << "," << programNo << ") call" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     if (backupPortValues) {
Chris@0: 	for (size_t i = 0; i < m_backupControlPortsIn.size(); ++i) {
Chris@0: 	    m_backupControlPortsIn[i] = *m_controlPortsIn[i].second;
Chris@0: 	}
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::activate()
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::activate" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     if (!m_descriptor || !m_descriptor->LADSPA_Plugin->activate) return;
Chris@0:     m_descriptor->LADSPA_Plugin->activate(m_instanceHandle);
Chris@0: 
Chris@51:     if (m_program != "") {
Chris@0: #ifdef DEBUG_DSSI
Chris@0: 	std::cerr << "DSSIPluginInstance::activate: restoring program " << m_program << std::endl;
Chris@0: #endif
Chris@0: 	selectProgramAux(m_program, false);
Chris@0:     }
Chris@0: 
Chris@0:     for (size_t i = 0; i < m_backupControlPortsIn.size(); ++i) {
Chris@0: #ifdef DEBUG_DSSI
Chris@0: 	std::cerr << "DSSIPluginInstance::activate: setting port " << m_controlPortsIn[i].first << " to " << m_backupControlPortsIn[i] << std::endl;
Chris@0: #endif
Chris@0: 	*m_controlPortsIn[i].second = m_backupControlPortsIn[i];
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::connectPorts()
Chris@0: {
Chris@0:     if (!m_descriptor || !m_descriptor->LADSPA_Plugin->connect_port) return;
Chris@117: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::connectPorts: " << m_audioPortsIn.size() 
Chris@0: 	      << " audio ports in, " << m_audioPortsOut.size() << " out, "
Chris@0: 	      << m_outputBufferCount << " output buffers" << std::endl;
Chris@117: #endif
Chris@0: 
Chris@0:     assert(sizeof(LADSPA_Data) == sizeof(float));
Chris@0:     assert(sizeof(sample_t) == sizeof(float));
Chris@57:     
Chris@57:     LADSPAPluginFactory *f = dynamic_cast<LADSPAPluginFactory *>(m_factory);
Chris@0:     int inbuf = 0, outbuf = 0;
Chris@0: 
Chris@0:     for (unsigned int i = 0; i < m_audioPortsIn.size(); ++i) {
Chris@0: 	m_descriptor->LADSPA_Plugin->connect_port
Chris@0: 	    (m_instanceHandle,
Chris@0: 	     m_audioPortsIn[i],
Chris@0: 	     (LADSPA_Data *)m_inputBuffers[inbuf]);
Chris@0: 	++inbuf;
Chris@0:     }
Chris@0: 
Chris@0:     for (unsigned int i = 0; i < m_audioPortsOut.size(); ++i) {
Chris@0: 	m_descriptor->LADSPA_Plugin->connect_port
Chris@0: 	    (m_instanceHandle,
Chris@0: 	     m_audioPortsOut[i],
Chris@0: 	     (LADSPA_Data *)m_outputBuffers[outbuf]);
Chris@0: 	++outbuf;
Chris@0:     }
Chris@0: 
Chris@0:     for (unsigned int i = 0; i < m_controlPortsIn.size(); ++i) {
Chris@0: 	m_descriptor->LADSPA_Plugin->connect_port
Chris@0: 	    (m_instanceHandle,
Chris@0: 	     m_controlPortsIn[i].first,
Chris@0: 	     m_controlPortsIn[i].second);
Chris@57: 
Chris@57:         if (f) {
Chris@57:             float defaultValue = f->getPortDefault
Chris@57:                 (m_descriptor->LADSPA_Plugin, m_controlPortsIn[i].first);
Chris@57:             *m_controlPortsIn[i].second = defaultValue;
Chris@57:             m_backupControlPortsIn[i] = defaultValue;
Chris@117: #ifdef DEBUG_DSSI
Chris@57:             std::cerr << "DSSIPluginInstance::connectPorts: set control port " << i << " to default value " << defaultValue << std::endl;
Chris@117: #endif
Chris@57:         }
Chris@0:     }
Chris@0: 
Chris@0:     for (unsigned int i = 0; i < m_controlPortsOut.size(); ++i) {
Chris@0: 	m_descriptor->LADSPA_Plugin->connect_port
Chris@0: 	    (m_instanceHandle,
Chris@0: 	     m_controlPortsOut[i].first,
Chris@0: 	     m_controlPortsOut[i].second);
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: unsigned int
Chris@0: DSSIPluginInstance::getParameterCount() const
Chris@0: {
Chris@0:     return m_controlPortsIn.size();
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::setParameterValue(unsigned int parameter, float value)
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::setParameterValue(" << parameter << ") to " << value << std::endl;
Chris@0: #endif
Chris@0:     if (parameter >= m_controlPortsIn.size()) return;
Chris@0: 
Chris@0:     unsigned int portNumber = m_controlPortsIn[parameter].first;
Chris@0: 
Chris@0:     LADSPAPluginFactory *f = dynamic_cast<LADSPAPluginFactory *>(m_factory);
Chris@0:     if (f) {
Chris@0: 	if (value < f->getPortMinimum(m_descriptor->LADSPA_Plugin, portNumber)) {
Chris@0: 	    value = f->getPortMinimum(m_descriptor->LADSPA_Plugin, portNumber);
Chris@0: 	}
Chris@0: 	if (value > f->getPortMaximum(m_descriptor->LADSPA_Plugin, portNumber)) {
Chris@0: 	    value = f->getPortMaximum(m_descriptor->LADSPA_Plugin, portNumber);
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     (*m_controlPortsIn[parameter].second) = value;
Chris@0:     m_backupControlPortsIn[parameter] = value;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::setPortValueFromController(unsigned int port, int cv)
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::setPortValueFromController(" << port << ") to " << cv << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     const LADSPA_Descriptor *p = m_descriptor->LADSPA_Plugin;
Chris@0:     LADSPA_PortRangeHintDescriptor d = p->PortRangeHints[port].HintDescriptor;
Chris@0:     LADSPA_Data lb = p->PortRangeHints[port].LowerBound;
Chris@0:     LADSPA_Data ub = p->PortRangeHints[port].UpperBound;
Chris@0: 
Chris@0:     float value = (float)cv;
Chris@0: 
Chris@0:     if (!LADSPA_IS_HINT_BOUNDED_BELOW(d)) {
Chris@0: 	if (!LADSPA_IS_HINT_BOUNDED_ABOVE(d)) {
Chris@0: 	    /* unbounded: might as well leave the value alone. */
Chris@0: 	} else {
Chris@0: 	    /* bounded above only. just shift the range. */
Chris@0: 	    value = ub - 127.0f + value;
Chris@0: 	}
Chris@0:     } else {
Chris@0: 	if (!LADSPA_IS_HINT_BOUNDED_ABOVE(d)) {
Chris@0: 	    /* bounded below only. just shift the range. */
Chris@0: 	    value = lb + value;
Chris@0: 	} else {
Chris@0: 	    /* bounded both ends.  more interesting. */
Chris@0: 	    /* XXX !!! todo: fill in logarithmic, sample rate &c */
Chris@0: 	    value = lb + ((ub - lb) * value / 127.0f);
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     for (unsigned int i = 0; i < m_controlPortsIn.size(); ++i) {
Chris@0: 	if (m_controlPortsIn[i].first == port) {
Chris@0: 	    setParameterValue(i, value);
Chris@0: 	}
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: float
Martin@62: DSSIPluginInstance::getControlOutputValue(size_t output) const
Chris@60: {
Chris@60:     if (output > m_controlPortsOut.size()) return 0.0;
Chris@60:     return (*m_controlPortsOut[output].second);
Chris@60: }
Chris@60: 
Chris@60: float
Chris@0: DSSIPluginInstance::getParameterValue(unsigned int parameter) const
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::getParameterValue(" << parameter << ")" << std::endl;
Chris@0: #endif
Chris@0:     if (parameter >= m_controlPortsIn.size()) return 0.0;
Chris@0:     return (*m_controlPortsIn[parameter].second);
Chris@0: }
Chris@0: 
Chris@0: float
Chris@0: DSSIPluginInstance::getParameterDefault(unsigned int parameter) const
Chris@0: {
Chris@0:     if (parameter >= m_controlPortsIn.size()) return 0.0;
Chris@0: 
Chris@0:     LADSPAPluginFactory *f = dynamic_cast<LADSPAPluginFactory *>(m_factory);
Chris@0:     if (f) {
Chris@0: 	return f->getPortDefault(m_descriptor->LADSPA_Plugin,
Chris@0: 				 m_controlPortsIn[parameter].first);
Chris@0:     } else {
Chris@0: 	return 0.0f;
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@51: std::string
Chris@51: DSSIPluginInstance::configure(std::string key,
Chris@51: 			      std::string value)
Chris@0: {
Chris@51:     if (!m_descriptor || !m_descriptor->configure) return std::string();
Chris@0: 
Chris@51:     if (key == PluginIdentifier::RESERVED_PROJECT_DIRECTORY_KEY.toStdString()) {
Chris@0: #ifdef DSSI_PROJECT_DIRECTORY_KEY
Chris@0: 	key = DSSI_PROJECT_DIRECTORY_KEY;
Chris@0: #else
Chris@51: 	return std::string();
Chris@0: #endif
Chris@0:     }
Chris@0: 	
Chris@0:     
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::configure(" << key << "," << value << ")" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     char *message = m_descriptor->configure(m_instanceHandle,
Chris@51: 					    key.c_str(),
Chris@51: 					    value.c_str());
Chris@0: 
Chris@0:     m_programCacheValid = false;
Chris@0: 
Chris@75:     m_configurationData[key] = value;
Chris@75: 
Chris@51:     std::string qm;
Chris@0: 
Chris@0:     // Ignore return values from reserved key configuration calls such
Chris@0:     // as project directory
Chris@0: #ifdef DSSI_RESERVED_CONFIGURE_PREFIX
Chris@51:     if (QString(key.c_str()).startsWith(DSSI_RESERVED_CONFIGURE_PREFIX)) {
Chris@0: 	return qm;
Chris@0:     }
Chris@0: #endif
Chris@0: 
Chris@0:     if (message) {
Chris@0: 	if (m_descriptor->LADSPA_Plugin && m_descriptor->LADSPA_Plugin->Label) {
Chris@51: 	    qm = std::string(m_descriptor->LADSPA_Plugin->Label) + ": ";
Chris@0: 	}
Chris@0: 	qm = qm + message;
Chris@0: 	free(message);
Chris@83: 
Chris@84:         std::cerr << "DSSIPluginInstance::configure: warning: configure returned message: \"" << qm << "\"" << std::endl;
Chris@0:     }
Chris@0: 
Chris@0:     return qm;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@66: DSSIPluginInstance::sendEvent(const Vamp::RealTime &eventTime,
Chris@0: 			      const void *e)
Chris@0: {
Chris@11: #ifdef DEBUG_DSSI_PROCESS
Chris@11:     std::cerr << "DSSIPluginInstance::sendEvent: last was " << m_lastEventSendTime << " (valid " << m_haveLastEventSendTime << "), this is " << eventTime << std::endl;
Chris@11: #endif
Chris@11: 
Chris@11:     // The process mechanism only works correctly if the events are
Chris@11:     // sorted.  It's the responsibility of the caller to ensure that:
Chris@11:     // we will happily drop events here if we find the timeline going
Chris@11:     // backwards.
Chris@10:     if (m_haveLastEventSendTime &&
Chris@10: 	m_lastEventSendTime > eventTime) {
Chris@11: #ifdef DEBUG_DSSI_PROCESS
Chris@11: 	std::cerr << "... clearing down" << std::endl;
Chris@11: #endif
Chris@11: 	m_haveLastEventSendTime = false;
Chris@10: 	clearEvents();
Chris@10:     }
Chris@10: 
Chris@0:     snd_seq_event_t *event = (snd_seq_event_t *)e;
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0:     std::cerr << "DSSIPluginInstance::sendEvent at " << eventTime << std::endl;
Chris@0: #endif
Chris@0:     snd_seq_event_t ev(*event);
Chris@0: 
Chris@0:     ev.time.time.tv_sec = eventTime.sec;
Chris@0:     ev.time.time.tv_nsec = eventTime.nsec;
Chris@0: 
Chris@0:     // DSSI doesn't use MIDI channels, it uses run_multiple_synths instead.
Chris@0:     ev.data.note.channel = 0;
Chris@0: 
Chris@0:     m_eventBuffer.write(&ev, 1);
Chris@11: 
Chris@11:     m_lastEventSendTime = eventTime;
Chris@11:     m_haveLastEventSendTime = true;
Chris@0: }
Chris@0: 
Chris@10: void
Chris@10: DSSIPluginInstance::clearEvents()
Chris@10: {
Chris@10:     m_haveLastEventSendTime = false;
Chris@10:     m_eventBuffer.reset();
Chris@10: }
Chris@10: 
Chris@0: bool
Chris@0: DSSIPluginInstance::handleController(snd_seq_event_t *ev)
Chris@0: {
Chris@0:     int controller = ev->data.control.param;
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0:     std::cerr << "DSSIPluginInstance::handleController " << controller << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     if (controller == 0) { // bank select MSB
Chris@0: 	
Chris@0: 	m_pending.msb = ev->data.control.value;
Chris@0: 
Chris@0:     } else if (controller == 32) { // bank select LSB
Chris@0: 
Chris@0: 	m_pending.lsb = ev->data.control.value;
Chris@0: 
Chris@0:     } else if (controller > 0 && controller < 128) {
Chris@0: 	
Chris@0: 	if (m_controllerMap.find(controller) != m_controllerMap.end()) {
Chris@0: 	    int port = m_controllerMap[controller];
Chris@0: 	    setPortValueFromController(port, ev->data.control.value);
Chris@0: 	} else {
Chris@0: 	    return true; // pass through to plugin
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     return false;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@66: DSSIPluginInstance::run(const Vamp::RealTime &blockTime)
Chris@0: {
Chris@0:     static snd_seq_event_t localEventBuffer[EVENT_BUFFER_SIZE];
Chris@0:     int evCount = 0;
Chris@0: 
Chris@0:     bool needLock = false;
Chris@0:     if (m_descriptor->select_program) needLock = true;
Chris@0: 
Chris@0:     if (needLock) {
Chris@0: 	if (!m_processLock.tryLock()) {
Chris@0: 	    for (size_t ch = 0; ch < m_audioPortsOut.size(); ++ch) {
Chris@0: 		memset(m_outputBuffers[ch], 0, m_blockSize * sizeof(sample_t));
Chris@0: 	    }
Chris@0: 	    return;
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     if (m_grouped) {
Chris@0: 	runGrouped(blockTime);
Chris@0: 	goto done;
Chris@0:     }
Chris@0: 
Chris@0:     if (!m_descriptor || !m_descriptor->run_synth) {
Chris@0: 	m_eventBuffer.skip(m_eventBuffer.getReadSpace());
Chris@10: 	m_haveLastEventSendTime = false;
Chris@0: 	if (m_descriptor->LADSPA_Plugin->run) {
Chris@0: 	    m_descriptor->LADSPA_Plugin->run(m_instanceHandle, m_blockSize);
Chris@0: 	} else {
Chris@0: 	    for (size_t ch = 0; ch < m_audioPortsOut.size(); ++ch) {
Chris@0: 		memset(m_outputBuffers[ch], 0, m_blockSize * sizeof(sample_t));
Chris@0: 	    }
Chris@0: 	}
Chris@0: 	m_run = true;
Chris@0: 	if (needLock) m_processLock.unlock();
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0:     std::cerr << "DSSIPluginInstance::run(" << blockTime << ")" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0:     if (m_eventBuffer.getReadSpace() > 0) {
Chris@0: 	std::cerr << "DSSIPluginInstance::run: event buffer has "
Chris@0: 		  << m_eventBuffer.getReadSpace() << " event(s) in it" << std::endl;
Chris@0:     }
Chris@0: #endif
Chris@0: 
Chris@0:     while (m_eventBuffer.getReadSpace() > 0) {
Chris@0: 
Chris@0: 	snd_seq_event_t *ev = localEventBuffer + evCount;
Chris@0: 	*ev = m_eventBuffer.peekOne();
Chris@0: 	bool accept = true;
Chris@0: 
Chris@66: 	Vamp::RealTime evTime(ev->time.time.tv_sec, ev->time.time.tv_nsec);
Chris@0: 
Chris@0: 	int frameOffset = 0;
Chris@0: 	if (evTime > blockTime) {
Chris@66: 	    frameOffset = Vamp::RealTime::realTime2Frame(evTime - blockTime, m_sampleRate);
Chris@0: 	}
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0: 	std::cerr << "DSSIPluginInstance::run: evTime " << evTime << ", blockTime " << blockTime << ", frameOffset " << frameOffset
Chris@0: 		  << ", blockSize " << m_blockSize << std::endl;
Chris@0: 	std::cerr << "Type: " << int(ev->type) << ", pitch: " << int(ev->data.note.note) << ", velocity: " << int(ev->data.note.velocity) << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0: 	if (frameOffset >= int(m_blockSize)) break;
Chris@10: 	if (frameOffset < 0) {
Chris@10: 	    frameOffset = 0;
Chris@10: 	    if (ev->type == SND_SEQ_EVENT_NOTEON) {
Chris@10: 		m_eventBuffer.skip(1);
Chris@10: 		continue;
Chris@10: 	    }
Chris@10: 	}
Chris@0: 
Chris@0: 	ev->time.tick = frameOffset;
Chris@0: 	m_eventBuffer.skip(1);
Chris@0: 
Chris@0: 	if (ev->type == SND_SEQ_EVENT_CONTROLLER) {
Chris@0: 	    accept = handleController(ev);
Chris@0: 	} else if (ev->type == SND_SEQ_EVENT_PGMCHANGE) {
Chris@0: 	    m_pending.program = ev->data.control.value;
Chris@0: 	    accept = false;
Chris@0: 	}
Chris@0: 
Chris@0: 	if (accept) {
Chris@0: 	    if (++evCount >= EVENT_BUFFER_SIZE) break;
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     if (m_pending.program >= 0 && m_descriptor->select_program) {
Chris@0: 
Chris@0: 	int program = m_pending.program;
Chris@0: 	int bank = m_pending.lsb + 128 * m_pending.msb;
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::run: making select_program(" << bank << "," << program << ") call" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0: 	m_pending.lsb = m_pending.msb = m_pending.program = -1;
Chris@0: 	m_descriptor->select_program(m_instanceHandle, bank, program);
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::run: made select_program(" << bank << "," << program << ") call" << std::endl;
Chris@0: #endif
Chris@0:     }
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0:     std::cerr << "DSSIPluginInstance::run: running with " << evCount << " events"
Chris@0: 	      << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     m_descriptor->run_synth(m_instanceHandle, m_blockSize,
Chris@0: 			    localEventBuffer, evCount);
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0: //    for (int i = 0; i < m_blockSize; ++i) {
Chris@0: //	std::cout << m_outputBuffers[0][i] << " ";
Chris@0: //	if (i % 8 == 0) std::cout << std::endl;
Chris@0: //    }
Chris@0: #endif
Chris@0: 
Chris@0:  done:
Chris@0:     if (needLock) m_processLock.unlock();
Chris@0: 
Chris@0:     if (m_audioPortsOut.size() == 0) {
Chris@0: 	// copy inputs to outputs
Chris@0: 	for (size_t ch = 0; ch < m_idealChannelCount; ++ch) {
Chris@0: 	    size_t sch = ch % m_audioPortsIn.size();
Chris@0: 	    for (size_t i = 0; i < m_blockSize; ++i) {
Chris@0: 		m_outputBuffers[ch][i] = m_inputBuffers[sch][i];
Chris@0: 	    }
Chris@0: 	}
Chris@0:     } else if (m_idealChannelCount < m_audioPortsOut.size()) {
Chris@0: 	if (m_idealChannelCount == 1) {
Chris@0: 	    // mix down to mono
Chris@0: 	    for (size_t ch = 1; ch < m_audioPortsOut.size(); ++ch) {
Chris@0: 		for (size_t i = 0; i < m_blockSize; ++i) {
Chris@0: 		    m_outputBuffers[0][i] += m_outputBuffers[ch][i];
Chris@0: 		}
Chris@0: 	    }
Chris@0: 	}
Chris@0:     } else if (m_idealChannelCount > m_audioPortsOut.size()) {
Chris@0: 	// duplicate
Chris@0: 	for (size_t ch = m_audioPortsOut.size(); ch < m_idealChannelCount; ++ch) {
Chris@0: 	    size_t sch = (ch - m_audioPortsOut.size()) % m_audioPortsOut.size();
Chris@0: 	    for (size_t i = 0; i < m_blockSize; ++i) {
Chris@0: 		m_outputBuffers[ch][i] = m_outputBuffers[sch][i];
Chris@0: 	    }
Chris@0: 	}
Chris@0:     }	
Chris@0: 
Chris@0:     m_lastRunTime = blockTime;
Chris@0:     m_run = true;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@66: DSSIPluginInstance::runGrouped(const Vamp::RealTime &blockTime)
Chris@0: {
Chris@0:     // If something else in our group has just been called for this
Chris@0:     // block time (but we haven't) then we should just write out the
Chris@0:     // results and return; if we have just been called for this block
Chris@0:     // time or nothing else in the group has been, we should run the
Chris@0:     // whole group.
Chris@0: 
Chris@0:     bool needRun = true;
Chris@0: 
Chris@0:     PluginSet &s = m_groupMap[m_identifier];
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0:     std::cerr << "DSSIPluginInstance::runGrouped(" << blockTime << "): this is " << this << "; " << s.size() << " elements in m_groupMap[" << m_identifier << "]" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     if (m_lastRunTime != blockTime) {
Chris@0: 	for (PluginSet::iterator i = s.begin(); i != s.end(); ++i) {
Chris@0: 	    DSSIPluginInstance *instance = *i;
Chris@0: 	    if (instance != this && instance->m_lastRunTime == blockTime) {
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0: 		std::cerr << "DSSIPluginInstance::runGrouped(" << blockTime << "): plugin " << instance << " has already been run" << std::endl;
Chris@0: #endif
Chris@0: 		needRun = false;
Chris@0: 	    }
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     if (!needRun) {
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0: 	std::cerr << "DSSIPluginInstance::runGrouped(" << blockTime << "): already run, returning" << std::endl;
Chris@0: #endif
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0:     std::cerr << "DSSIPluginInstance::runGrouped(" << blockTime << "): I'm the first, running" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     size_t index = 0;
Chris@0:     unsigned long *counts = (unsigned long *)
Chris@0: 	alloca(m_groupLocalEventBufferCount * sizeof(unsigned long));
Chris@0:     LADSPA_Handle *instances = (LADSPA_Handle *)
Chris@0: 	alloca(m_groupLocalEventBufferCount * sizeof(LADSPA_Handle));
Chris@0: 
Chris@0:     for (PluginSet::iterator i = s.begin(); i != s.end(); ++i) {
Chris@0: 
Chris@0: 	if (index >= m_groupLocalEventBufferCount) break;
Chris@0: 
Chris@0: 	DSSIPluginInstance *instance = *i;
Chris@0: 	counts[index] = 0;
Chris@0: 	instances[index] = instance->m_instanceHandle;
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0: 	std::cerr << "DSSIPluginInstance::runGrouped(" << blockTime << "): running " << instance << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0: 	if (instance->m_pending.program >= 0 &&
Chris@0: 	    instance->m_descriptor->select_program) {
Chris@0: 	    int program = instance->m_pending.program;
Chris@0: 	    int bank = instance->m_pending.lsb + 128 * instance->m_pending.msb;
Chris@0: 	    instance->m_pending.lsb = instance->m_pending.msb = instance->m_pending.program = -1;
Chris@0: 	    instance->m_descriptor->select_program
Chris@0: 		(instance->m_instanceHandle, bank, program);
Chris@0: 	}
Chris@0: 
Chris@0: 	while (instance->m_eventBuffer.getReadSpace() > 0) {
Chris@0: 
Chris@0: 	    snd_seq_event_t *ev = m_groupLocalEventBuffers[index] + counts[index];
Chris@0: 	    *ev = instance->m_eventBuffer.peekOne();
Chris@0: 	    bool accept = true;
Chris@0: 
Chris@66: 	    Vamp::RealTime evTime(ev->time.time.tv_sec, ev->time.time.tv_nsec);
Chris@0: 
Chris@0: 	    int frameOffset = 0;
Chris@0: 	    if (evTime > blockTime) {
Chris@66: 		frameOffset = Vamp::RealTime::realTime2Frame(evTime - blockTime, m_sampleRate);
Chris@0: 	    }
Chris@0: 
Chris@0: #ifdef DEBUG_DSSI_PROCESS
Chris@0: 	    std::cerr << "DSSIPluginInstance::runGrouped: evTime " << evTime << ", frameOffset " << frameOffset
Chris@0: 		      << ", block size " << m_blockSize << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0: 	    if (frameOffset >= int(m_blockSize)) break;
Chris@0: 	    if (frameOffset < 0) frameOffset = 0;
Chris@0: 
Chris@0: 	    ev->time.tick = frameOffset;
Chris@0: 	    instance->m_eventBuffer.skip(1);
Chris@0: 
Chris@0: 	    if (ev->type == SND_SEQ_EVENT_CONTROLLER) {
Chris@0: 		accept = instance->handleController(ev);
Chris@0: 	    } else if (ev->type == SND_SEQ_EVENT_PGMCHANGE) {
Chris@0: 		instance->m_pending.program = ev->data.control.value;
Chris@0: 		accept = false;
Chris@0: 	    }
Chris@0: 
Chris@0: 	    if (accept) {
Chris@0: 		if (++counts[index] >= EVENT_BUFFER_SIZE) break;
Chris@0: 	    }
Chris@0: 	}
Chris@0: 
Chris@0: 	++index;
Chris@0:     }
Chris@0: 
Chris@0:     m_descriptor->run_multiple_synths(index,
Chris@0: 				      instances,
Chris@0: 				      m_blockSize,
Chris@0: 				      m_groupLocalEventBuffers,
Chris@0: 				      counts);
Chris@0: }
Chris@0: 
Chris@0: int
Chris@0: DSSIPluginInstance::requestMidiSend(LADSPA_Handle instance,
Chris@0: 				    unsigned char ports,
Chris@0: 				    unsigned char channels)
Chris@0: {
Chris@0:     // This is called from a non-RT context (during instantiate)
Chris@0: 
Chris@0:     std::cerr << "DSSIPluginInstance::requestMidiSend" << std::endl;
Chris@0:     return 1;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::midiSend(LADSPA_Handle instance,
Chris@0: 			     snd_seq_event_t *events,
Chris@0: 			     unsigned long eventCount)
Chris@0: {
Chris@0:     // This is likely to be called from an RT context
Chris@0: 
Chris@0:     std::cerr << "DSSIPluginInstance::midiSend" << std::endl;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::NonRTPluginThread::run()
Chris@0: {
Chris@0:     while (!m_exiting) {
Chris@0: 	m_runFunction(m_handle);
Chris@0: 	usleep(100000);
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: int
Chris@0: DSSIPluginInstance::requestNonRTThread(LADSPA_Handle instance,
Chris@0: 				       void (*runFunction)(LADSPA_Handle))
Chris@0: {
Chris@0:     NonRTPluginThread *thread = new NonRTPluginThread(instance, runFunction);
Chris@0:     m_threads[instance].insert(thread);
Chris@0:     thread->start();
Chris@0:     return 0;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::deactivate()
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::deactivate " << m_identifier << std::endl;
Chris@0: #endif
Chris@0:     if (!m_descriptor || !m_descriptor->LADSPA_Plugin->deactivate) return;
Chris@0: 
Chris@0:     for (size_t i = 0; i < m_backupControlPortsIn.size(); ++i) {
Chris@0: 	m_backupControlPortsIn[i] = *m_controlPortsIn[i].second;
Chris@0:     }
Chris@0: 
Chris@0:     m_descriptor->LADSPA_Plugin->deactivate(m_instanceHandle);
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::deactivate " << m_identifier << " done" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0:     m_bufferScavenger.scavenge();
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: DSSIPluginInstance::cleanup()
Chris@0: {
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::cleanup " << m_identifier << std::endl;
Chris@0: #endif
Chris@0:     if (!m_descriptor) return;
Chris@0: 
Chris@0:     if (!m_descriptor->LADSPA_Plugin->cleanup) {
Chris@0: 	std::cerr << "Bad plugin: plugin id "
Chris@0: 		  << m_descriptor->LADSPA_Plugin->UniqueID
Chris@0: 		  << ":" << m_descriptor->LADSPA_Plugin->Label
Chris@0: 		  << " has no cleanup method!" << std::endl;
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0:     m_descriptor->LADSPA_Plugin->cleanup(m_instanceHandle);
Chris@0:     m_instanceHandle = 0;
Chris@0: #ifdef DEBUG_DSSI
Chris@0:     std::cerr << "DSSIPluginInstance::cleanup " << m_identifier << " done" << std::endl;
Chris@0: #endif
Chris@0: }
Chris@0: