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: #ifndef _DSSIPLUGININSTANCE_H_
Chris@0: #define _DSSIPLUGININSTANCE_H_
Chris@0:
Chris@0: #define DSSI_API_LEVEL 2
Chris@0:
Chris@0: #include <vector>
Chris@0: #include <set>
Chris@0: #include <map>
Chris@0: #include <QString>
Chris@0: #include <QMutex>
Chris@0:
Chris@0: #include "api/dssi.h"
Chris@0:
Chris@0: #include "base/RingBuffer.h"
Chris@109: #include "base/Thread.h"
Chris@0: #include "RealTimePluginInstance.h"
Chris@0: #include "base/Scavenger.h"
Chris@0:
Chris@0: class DSSIPluginInstance : public RealTimePluginInstance
Chris@0: {
Chris@0: public:
Chris@0: virtual ~DSSIPluginInstance();
Chris@0:
Chris@0: virtual bool isOK() const { return m_instanceHandle != 0; }
Chris@0:
Chris@0: int getClientId() const { return m_client; }
Chris@237: virtual QString getPluginIdentifier() const { return m_identifier; }
Chris@0: int getPosition() const { return m_position; }
Chris@0:
Chris@239: virtual std::string getIdentifier() const;
Chris@51: virtual std::string getName() const;
Chris@51: virtual std::string getDescription() const;
Chris@51: virtual std::string getMaker() const;
Chris@51: virtual int getPluginVersion() const;
Chris@51: virtual std::string getCopyright() const;
Chris@51:
Chris@1040: virtual void run(const RealTime &, int count = 0);
Chris@0:
Chris@1038: virtual int getParameterCount() const;
Chris@1038: virtual void setParameterValue(int parameter, float value);
Chris@1038: virtual float getParameterValue(int parameter) const;
Chris@1038: virtual float getParameterDefault(int parameter) const;
Chris@1038: virtual int getParameterDisplayHint(int parameter) const;
Chris@51:
Chris@51: virtual ParameterList getParameterDescriptors() const;
Chris@51: virtual float getParameter(std::string) const;
Chris@51: virtual void setParameter(std::string, float);
Chris@51:
Chris@51: virtual std::string configure(std::string key, std::string value);
Chris@1040: virtual void sendEvent(const RealTime &eventTime,
Chris@0: const void *event);
Chris@10: virtual void clearEvents();
Chris@0:
Chris@1040: virtual int getBufferSize() const { return m_blockSize; }
Chris@1040: virtual int getAudioInputCount() const { return (int)m_audioPortsIn.size(); }
Chris@1040: virtual int getAudioOutputCount() const { return m_idealChannelCount; }
Chris@0: virtual sample_t **getAudioInputBuffers() { return m_inputBuffers; }
Chris@0: virtual sample_t **getAudioOutputBuffers() { return m_outputBuffers; }
Chris@0:
Chris@1040: virtual int getControlOutputCount() const { return (int)m_controlPortsOut.size(); }
Chris@1040: virtual float getControlOutputValue(int n) const;
Chris@60:
Chris@51: virtual ProgramList getPrograms() const;
Chris@51: virtual std::string getCurrentProgram() const;
Chris@51: virtual std::string getProgram(int bank, int program) const;
Chris@1038: virtual int getProgram(std::string name) const;
Chris@51: virtual void selectProgram(std::string program);
Chris@0:
Chris@0: virtual bool isBypassed() const { return m_bypassed; }
Chris@0: virtual void setBypassed(bool bypassed) { m_bypassed = bypassed; }
Chris@0:
Chris@1040: virtual sv_frame_t getLatency();
Chris@0:
Chris@0: virtual void silence();
Chris@0: virtual void discardEvents();
Chris@1040: virtual void setIdealChannelCount(int channels); // may re-instantiate
Chris@0:
Chris@0: virtual bool isInGroup() const { return m_grouped; }
Chris@0: virtual void detachFromGroup();
Chris@0:
Chris@57: virtual std::string getType() const { return "DSSI Real-Time Plugin"; }
Chris@57:
Chris@0: protected:
Chris@0: // To be constructed only by DSSIPluginFactory
Chris@0: friend class DSSIPluginFactory;
Chris@0:
Chris@0: // Constructor that creates the buffers internally
Chris@0: //
Chris@0: DSSIPluginInstance(RealTimePluginFactory *factory,
Chris@0: int client,
Chris@0: QString identifier,
Chris@0: int position,
Chris@1040: sv_samplerate_t sampleRate,
Chris@1040: int blockSize,
Chris@0: int idealChannelCount,
Chris@0: const DSSI_Descriptor* descriptor);
Chris@0:
Chris@0: void init();
Chris@1040: void instantiate(sv_samplerate_t sampleRate);
Chris@0: void cleanup();
Chris@0: void activate();
Chris@0: void deactivate();
Chris@0: void connectPorts();
Chris@0:
Chris@0: bool handleController(snd_seq_event_t *ev);
Chris@1038: void setPortValueFromController(int portNumber, int controlValue);
Chris@51: void selectProgramAux(std::string program, bool backupPortValues);
Chris@0: void checkProgramCache() const;
Chris@0:
Chris@0: void initialiseGroupMembership();
Chris@1040: void runGrouped(const RealTime &);
Chris@0:
Chris@0: // For use in DSSIPluginFactory (set in the DSSI_Host_Descriptor):
Chris@0: static int requestMidiSend(LADSPA_Handle instance,
Chris@0: unsigned char ports,
Chris@0: unsigned char channels);
Chris@0: static void midiSend(LADSPA_Handle instance,
Chris@0: snd_seq_event_t *events,
Chris@0: unsigned long eventCount);
Chris@0: static int requestNonRTThread(LADSPA_Handle instance,
Chris@0: void (*runFunction)(LADSPA_Handle));
Chris@0:
Chris@0: int m_client;
Chris@0: int m_position;
Chris@0: LADSPA_Handle m_instanceHandle;
Chris@0: const DSSI_Descriptor *m_descriptor;
Chris@0:
Chris@1038: std::vector<std::pair<int, LADSPA_Data*> > m_controlPortsIn;
Chris@1038: std::vector<std::pair<int, LADSPA_Data*> > m_controlPortsOut;
Chris@0:
Chris@0: std::vector<LADSPA_Data> m_backupControlPortsIn;
Chris@0:
Chris@0: std::map<int, int> m_controllerMap;
Chris@0:
Chris@0: std::vector<int> m_audioPortsIn;
Chris@0: std::vector<int> m_audioPortsOut;
Chris@0:
Chris@0: struct ProgramControl {
Chris@0: int msb;
Chris@0: int lsb;
Chris@0: int program;
Chris@0: };
Chris@0: ProgramControl m_pending;
Chris@0:
Chris@0: struct ProgramDescriptor {
Chris@0: int bank;
Chris@0: int program;
Chris@51: std::string name;
Chris@0: };
Chris@0: mutable std::vector<ProgramDescriptor> m_cachedPrograms;
Chris@0: mutable bool m_programCacheValid;
Chris@0:
Chris@0: RingBuffer<snd_seq_event_t> m_eventBuffer;
Chris@0:
Chris@1040: int m_blockSize;
Chris@0: sample_t **m_inputBuffers;
Chris@0: sample_t **m_outputBuffers;
Chris@0: bool m_ownBuffers;
Chris@1040: int m_idealChannelCount;
Chris@1040: int m_outputBufferCount;
Chris@1040: sv_samplerate_t m_sampleRate;
Chris@0: float *m_latencyPort;
Chris@0: bool m_run;
Chris@0:
Chris@0: bool m_bypassed;
Chris@51: std::string m_program;
Chris@0: bool m_grouped;
Chris@1040: RealTime m_lastRunTime;
Chris@0:
Chris@1040: RealTime m_lastEventSendTime;
Chris@10: bool m_haveLastEventSendTime;
Chris@10:
Chris@0: QMutex m_processLock;
Chris@0:
Chris@0: typedef std::set<DSSIPluginInstance *> PluginSet;
Chris@0: typedef std::map<QString, PluginSet> GroupMap;
Chris@0: static GroupMap m_groupMap;
Chris@0: static snd_seq_event_t **m_groupLocalEventBuffers;
Chris@0: static size_t m_groupLocalEventBufferCount;
Chris@0:
Chris@0: static Scavenger<ScavengerArrayWrapper<snd_seq_event_t *> > m_bufferScavenger;
Chris@0:
Chris@109: class NonRTPluginThread : public Thread
Chris@0: {
Chris@0: public:
Chris@0: NonRTPluginThread(LADSPA_Handle handle,
Chris@0: void (*runFunction)(LADSPA_Handle)) :
Chris@0: m_handle(handle),
Chris@0: m_runFunction(runFunction),
Chris@0: m_exiting(false) { }
Chris@0:
Chris@0: virtual void run();
Chris@0: void setExiting() { m_exiting = true; }
Chris@0:
Chris@0: protected:
Chris@0: LADSPA_Handle m_handle;
Chris@0: void (*m_runFunction)(LADSPA_Handle);
Chris@0: bool m_exiting;
Chris@0: };
Chris@0: static std::map<LADSPA_Handle, std::set<NonRTPluginThread *> > m_threads;
Chris@0: };
Chris@0:
Chris@0: #endif // _DSSIPLUGININSTANCE_H_
Chris@0: