/[svn]/linuxsampler/trunk/src/engines/gig/EngineChannel.cpp
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revision 554 by schoenebeck, Thu May 19 19:25:14 2005 UTC revision 846 by persson, Sun Mar 19 16:38:22 2006 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005 Christian Schoenebeck                              *   *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 30  namespace LinuxSampler { namespace gig { Line 30  namespace LinuxSampler { namespace gig {
30          pEngine      = NULL;          pEngine      = NULL;
31          pInstrument  = NULL;          pInstrument  = NULL;
32          pEvents      = NULL; // we allocate when we retrieve the right Engine object          pEvents      = NULL; // we allocate when we retrieve the right Engine object
         pCCEvents    = NULL; // we allocate when we retrieve the right Engine object  
33          pEventQueue  = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue  = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);
34          pActiveKeys  = new Pool<uint>(128);          pActiveKeys  = new Pool<uint>(128);
35          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
# Line 42  namespace LinuxSampler { namespace gig { Line 41  namespace LinuxSampler { namespace gig {
41              pMIDIKeyInfo[i].VoiceTheftsQueued = 0;              pMIDIKeyInfo[i].VoiceTheftsQueued = 0;
42              pMIDIKeyInfo[i].RoundRobinIndex = 0;              pMIDIKeyInfo[i].RoundRobinIndex = 0;
43          }          }
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i] = NULL; // we allocate when we retrieve the right Engine object  
         }  
44          InstrumentIdx  = -1;          InstrumentIdx  = -1;
45          InstrumentStat = -1;          InstrumentStat = -1;
46          AudioDeviceChannelLeft  = -1;          AudioDeviceChannelLeft  = -1;
47          AudioDeviceChannelRight = -1;          AudioDeviceChannelRight = -1;
48            pMidiInputPort = NULL;
49            midiChannel = midi_chan_all;
50            ResetControllers();
51            SoloMode       = false;
52            PortamentoMode = false;
53            PortamentoTime = CONFIG_PORTAMENTO_TIME_DEFAULT;
54      }      }
55    
56      EngineChannel::~EngineChannel() {      EngineChannel::~EngineChannel() {
# Line 60  namespace LinuxSampler { namespace gig { Line 62  namespace LinuxSampler { namespace gig {
62      }      }
63    
64      /**      /**
65         * Implementation of virtual method from abstract EngineChannel interface.
66         * This method will periodically be polled (e.g. by the LSCP server) to
67         * check if some engine channel parameter has changed since the last
68         * StatusChanged() call.
69         *
70         * This method can also be used to mark the engine channel as changed
71         * from outside, e.g. by a MIDI input device. The optional argument
72         * \a nNewStatus can be used for this.
73         *
74         * TODO: This "poll method" is just a lazy solution and might be
75         *       replaced in future.
76         * @param bNewStatus - (optional, default: false) sets the new status flag
77         * @returns true if engine channel status has changed since last
78         *          StatusChanged() call
79         */
80        bool EngineChannel::StatusChanged(bool bNewStatus) {
81            bool b = bStatusChanged;
82            bStatusChanged = bNewStatus;
83            return b;
84        }
85    
86        void EngineChannel::Reset() {
87            if (pEngine) pEngine->DisableAndLock();
88            ResetInternal();
89            ResetControllers();
90            if (pEngine) {
91                pEngine->Enable();
92                pEngine->Reset();
93            }
94        }
95    
96        /**
97       * This method is not thread safe!       * This method is not thread safe!
98       */       */
99      void EngineChannel::ResetInternal() {      void EngineChannel::ResetInternal() {
         Pitch               = 0;  
         SustainPedal        = false;  
         GlobalVolume        = 1.0;  
         GlobalPanLeft       = 1.0f;  
         GlobalPanRight      = 1.0f;  
100          CurrentKeyDimension = 0;          CurrentKeyDimension = 0;
101    
         ResetControllers();  
   
102          // reset key info          // reset key info
103          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
104              if (pMIDIKeyInfo[i].pActiveVoices)              if (pMIDIKeyInfo[i].pActiveVoices)
# Line 84  namespace LinuxSampler { namespace gig { Line 111  namespace LinuxSampler { namespace gig {
111              pMIDIKeyInfo[i].itSelf         = Pool<uint>::Iterator();              pMIDIKeyInfo[i].itSelf         = Pool<uint>::Iterator();
112              pMIDIKeyInfo[i].VoiceTheftsQueued = 0;              pMIDIKeyInfo[i].VoiceTheftsQueued = 0;
113          }          }
114            SoloKey       = -1;    // no solo key active yet
115            PortamentoPos = -1.0f; // no portamento active yet
116    
117          // reset all key groups          // reset all key groups
118          std::map<uint,uint*>::iterator iter = ActiveKeyGroups.begin();          std::map<uint,uint*>::iterator iter = ActiveKeyGroups.begin();
# Line 96  namespace LinuxSampler { namespace gig { Line 125  namespace LinuxSampler { namespace gig {
125          pEventQueue->init();          pEventQueue->init();
126    
127          if (pEngine) pEngine->ResetInternal();          if (pEngine) pEngine->ResetInternal();
128    
129            // status of engine channel has changed, so set notify flag
130            bStatusChanged = true;
131      }      }
132    
133      LinuxSampler::Engine* EngineChannel::GetEngine() {      LinuxSampler::Engine* EngineChannel::GetEngine() {
# Line 208  namespace LinuxSampler { namespace gig { Line 240  namespace LinuxSampler { namespace gig {
240      void EngineChannel::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) {      void EngineChannel::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) {
241          this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument())          this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument())
242          if (pEngine) pEngine->Enable();          if (pEngine) pEngine->Enable();
243            bStatusChanged = true; // status of engine has changed, so set notify flag
244      }      }
245    
246      /**      /**
# Line 219  namespace LinuxSampler { namespace gig { Line 252  namespace LinuxSampler { namespace gig {
252      void EngineChannel::OnResourceProgress(float fProgress) {      void EngineChannel::OnResourceProgress(float fProgress) {
253          this->InstrumentStat = int(fProgress * 100.0f);          this->InstrumentStat = int(fProgress * 100.0f);
254          dmsg(7,("gig::EngineChannel: progress %d%", InstrumentStat));          dmsg(7,("gig::EngineChannel: progress %d%", InstrumentStat));
255            bStatusChanged = true; // status of engine has changed, so set notify flag
256      }      }
257    
258      void EngineChannel::Connect(AudioOutputDevice* pAudioOut) {      void EngineChannel::Connect(AudioOutputDevice* pAudioOut) {
# Line 228  namespace LinuxSampler { namespace gig { Line 262  namespace LinuxSampler { namespace gig {
262          }          }
263          pEngine = Engine::AcquireEngine(this, pAudioOut);          pEngine = Engine::AcquireEngine(this, pAudioOut);
264          ResetInternal();          ResetInternal();
265          pEvents   = new RTList<Event>(pEngine->pEventPool);          pEvents = new RTList<Event>(pEngine->pEventPool);
         pCCEvents = new RTList<Event>(pEngine->pEventPool);  
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i] = new RTList<Event>(pEngine->pEventPool);  
         }  
266          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
267              pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool);              pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool);
268              pMIDIKeyInfo[i].pEvents       = new RTList<Event>(pEngine->pEventPool);              pMIDIKeyInfo[i].pEvents       = new RTList<Event>(pEngine->pEventPool);
# Line 241  namespace LinuxSampler { namespace gig { Line 271  namespace LinuxSampler { namespace gig {
271          AudioDeviceChannelRight = 1;          AudioDeviceChannelRight = 1;
272          pOutputLeft             = pAudioOut->Channel(0)->Buffer();          pOutputLeft             = pAudioOut->Channel(0)->Buffer();
273          pOutputRight            = pAudioOut->Channel(1)->Buffer();          pOutputRight            = pAudioOut->Channel(1)->Buffer();
274            MidiInputPort::AddSysexListener(pEngine);
275      }      }
276    
277      void EngineChannel::DisconnectAudioOutputDevice() {      void EngineChannel::DisconnectAudioOutputDevice() {
# Line 250  namespace LinuxSampler { namespace gig { Line 281  namespace LinuxSampler { namespace gig {
281                  delete pEvents;                  delete pEvents;
282                  pEvents = NULL;                  pEvents = NULL;
283              }              }
             if (pCCEvents) {  
                 delete pCCEvents;  
                 pCCEvents = NULL;  
             }  
284              for (uint i = 0; i < 128; i++) {              for (uint i = 0; i < 128; i++) {
285                  if (pMIDIKeyInfo[i].pActiveVoices) {                  if (pMIDIKeyInfo[i].pActiveVoices) {
286                      delete pMIDIKeyInfo[i].pActiveVoices;                      delete pMIDIKeyInfo[i].pActiveVoices;
# Line 264  namespace LinuxSampler { namespace gig { Line 291  namespace LinuxSampler { namespace gig {
291                      pMIDIKeyInfo[i].pEvents = NULL;                      pMIDIKeyInfo[i].pEvents = NULL;
292                  }                  }
293              }              }
             for (uint i = 0; i < Event::destination_count; i++) {  
                 if (pSynthesisEvents[i]) {  
                     delete pSynthesisEvents[i];  
                     pSynthesisEvents[i] = NULL;  
                 }  
             }  
294              Engine* oldEngine = pEngine;              Engine* oldEngine = pEngine;
295              AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice;              AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice;
296              pEngine = NULL;              pEngine = NULL;
# Line 309  namespace LinuxSampler { namespace gig { Line 330  namespace LinuxSampler { namespace gig {
330          }          }
331      }      }
332    
333        void EngineChannel::Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel) {
334            if (!pMidiPort || pMidiPort == this->pMidiInputPort) return;
335            DisconnectMidiInputPort();
336            this->pMidiInputPort = pMidiPort;
337            this->midiChannel    = MidiChannel;
338            pMidiPort->Connect(this, MidiChannel);
339        }
340    
341        void EngineChannel::DisconnectMidiInputPort() {
342            MidiInputPort* pOldPort = this->pMidiInputPort;
343            this->pMidiInputPort = NULL;
344            if (pOldPort) pOldPort->Disconnect(this);
345        }
346    
347        MidiInputPort* EngineChannel::GetMidiInputPort() {
348            return pMidiInputPort;
349        }
350    
351        midi_chan_t EngineChannel::MidiChannel() {
352            return midiChannel;
353        }
354    
355      /**      /**
356       *  Will be called by the MIDIIn Thread to let the audio thread trigger a new       *  Will be called by the MIDIIn Thread to let the audio thread trigger a new
357       *  voice for the given key.       *  voice for the given key.
# Line 385  namespace LinuxSampler { namespace gig { Line 428  namespace LinuxSampler { namespace gig {
428    
429      void EngineChannel::ClearEventLists() {      void EngineChannel::ClearEventLists() {
430          pEvents->clear();          pEvents->clear();
         pCCEvents->clear();  
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i]->clear();  
         }  
431          // empty MIDI key specific event lists          // empty MIDI key specific event lists
432          {          {
433              RTList<uint>::Iterator iuiKey = pActiveKeys->first();              RTList<uint>::Iterator iuiKey = pActiveKeys->first();
# Line 400  namespace LinuxSampler { namespace gig { Line 439  namespace LinuxSampler { namespace gig {
439      }      }
440    
441      void EngineChannel::ResetControllers() {      void EngineChannel::ResetControllers() {
442            Pitch          = 0;
443            SustainPedal   = false;
444            SostenutoPedal = false;
445            GlobalVolume   = CONFIG_GLOBAL_ATTENUATION;
446            GlobalPanLeft  = 1.0f;
447            GlobalPanRight = 1.0f;
448          // set all MIDI controller values to zero          // set all MIDI controller values to zero
449          memset(ControllerTable, 0x00, 128);          memset(ControllerTable, 0x00, 128);
450      }      }
# Line 446  namespace LinuxSampler { namespace gig { Line 491  namespace LinuxSampler { namespace gig {
491    
492      void EngineChannel::Volume(float f) {      void EngineChannel::Volume(float f) {
493          GlobalVolume = f;          GlobalVolume = f;
494            bStatusChanged = true; // status of engine channel has changed, so set notify flag
495      }      }
496    
497      uint EngineChannel::Channels() {      uint EngineChannel::Channels() {
# Line 471  namespace LinuxSampler { namespace gig { Line 517  namespace LinuxSampler { namespace gig {
517      String EngineChannel::EngineName() {      String EngineChannel::EngineName() {
518          return LS_GIG_ENGINE_NAME;          return LS_GIG_ENGINE_NAME;
519      }      }
520        
521  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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