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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.
*/
#ifndef _DSSIPLUGININSTANCE_H_
#define _DSSIPLUGININSTANCE_H_
#include <vector>
#include <set>
#include <map>
#include <tqstring.h>
#include "Instrument.h"
#ifdef HAVE_DSSI
#include <dssi.h>
#include "RingBuffer.h"
#include "RunnablePluginInstance.h"
#include "Scavenger.h"
#include <pthread.h>
namespace Rosegarden
{
class DSSIPluginInstance : public RunnablePluginInstance
{
public:
virtual ~DSSIPluginInstance();
virtual bool isOK() const { return m_instanceHandle != 0; }
InstrumentId getInstrument() const { return m_instrument; }
virtual TQString getIdentifier() const { return m_identifier; }
int getPosition() const { return m_position; }
virtual void run(const RealTime &);
virtual void setPortValue(unsigned int portNumber, float value);
virtual float getPortValue(unsigned int portNumber);
virtual TQString configure(TQString key, TQString value);
virtual void sendEvent(const RealTime &eventTime,
const void *event);
virtual size_t getBufferSize() { return m_blockSize; }
virtual size_t getAudioInputCount() { return m_audioPortsIn.size(); }
virtual size_t getAudioOutputCount() { return m_idealChannelCount; }
virtual sample_t **getAudioInputBuffers() { return m_inputBuffers; }
virtual sample_t **getAudioOutputBuffers() { return m_outputBuffers; }
virtual TQStringList getPrograms();
virtual TQString getCurrentProgram();
virtual TQString getProgram(int bank, int program);
virtual unsigned long getProgram(TQString name);
virtual void selectProgram(TQString program);
virtual bool isBypassed() const { return m_bypassed; }
virtual void setBypassed(bool bypassed) { m_bypassed = bypassed; }
virtual size_t getLatency();
virtual void silence();
virtual void discardEvents();
virtual void setIdealChannelCount(size_t channels); // may re-instantiate
virtual bool isInGroup() const { return m_grouped; }
virtual void detachFromGroup();
protected:
// To be constructed only by DSSIPluginFactory
friend class DSSIPluginFactory;
// Constructor that creates the buffers internally
//
DSSIPluginInstance(PluginFactory *factory,
InstrumentId instrument,
TQString identifier,
int position,
unsigned long sampleRate,
size_t blockSize,
int idealChannelCount,
const DSSI_Descriptor* descriptor);
// Constructor that uses shared buffers
//
DSSIPluginInstance(PluginFactory *factory,
InstrumentId instrument,
TQString identifier,
int position,
unsigned long sampleRate,
size_t blockSize,
sample_t **inputBuffers,
sample_t **outputBuffers,
const DSSI_Descriptor* descriptor);
void init();
void instantiate(unsigned long sampleRate);
void cleanup();
void activate();
void deactivate();
void connectPorts();
bool handleController(snd_seq_event_t *ev);
void setPortValueFromController(unsigned int portNumber, int controlValue);
void selectProgramAux(TQString program, bool backupPortValues);
void checkProgramCache();
void initialiseGroupMembership();
void runGrouped(const RealTime &);
InstrumentId m_instrument;
int m_position;
LADSPA_Handle m_instanceHandle;
const DSSI_Descriptor *m_descriptor;
std::vector<std::pair<unsigned long, LADSPA_Data*> > m_controlPortsIn;
std::vector<std::pair<unsigned long, LADSPA_Data*> > m_controlPortsOut;
std::vector<LADSPA_Data> m_backupControlPortsIn;
std::vector<bool> m_portChangedSinceProgramChange;
std::map<int, int> m_controllerMap;
std::vector<int> m_audioPortsIn;
std::vector<int> m_audioPortsOut;
struct ProgramControl {
int msb;
int lsb;
int program;
};
ProgramControl m_pending;
struct ProgramDescriptor {
int bank;
int program;
TQString name;
};
std::vector<ProgramDescriptor> m_cachedPrograms;
bool m_programCacheValid;
RingBuffer<snd_seq_event_t> m_eventBuffer;
size_t m_blockSize;
sample_t **m_inputBuffers;
sample_t **m_outputBuffers;
bool m_ownBuffers;
size_t m_idealChannelCount;
size_t m_outputBufferCount;
size_t m_sampleRate;
float *m_latencyPort;
bool m_run;
bool m_runSinceReset;
bool m_bypassed;
TQString m_program;
bool m_grouped;
RealTime m_lastRunTime;
pthread_mutex_t m_processLock;
typedef std::set<DSSIPluginInstance *> PluginSet;
typedef std::map<TQString, PluginSet> GroupMap;
static GroupMap m_groupMap;
static snd_seq_event_t **m_groupLocalEventBuffers;
static size_t m_groupLocalEventBufferCount;
static Scavenger<ScavengerArrayWrapper<snd_seq_event_t *> > m_bufferScavenger;
};
};
#endif // HAVE_DSSI
#endif // _DSSIPLUGININSTANCE_H_
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