/[svn]/linuxsampler/trunk/src/engines/gig/Engine.cpp
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revision 376 by senkov, Sat Feb 12 23:48:50 2005 UTC revision 630 by persson, Sat Jun 11 14:51:49 2005 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                              *
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 24  Line 25 
25  #include "DiskThread.h"  #include "DiskThread.h"
26  #include "Voice.h"  #include "Voice.h"
27  #include "EGADSR.h"  #include "EGADSR.h"
28    #include "../EngineFactory.h"
29    
30  #include "Engine.h"  #include "Engine.h"
31    
# Line 35  Line 37 
37    
38  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
39    
40      InstrumentResourceManager Engine::Instruments;      InstrumentResourceManager Engine::instruments;
41    
42        std::map<AudioOutputDevice*,Engine*> Engine::engines;
43    
44        /**
45         * Get a gig::Engine object for the given gig::EngineChannel and the
46         * given AudioOutputDevice. All engine channels which are connected to
47         * the same audio output device will use the same engine instance. This
48         * method will be called by a gig::EngineChannel whenever it's
49         * connecting to a audio output device.
50         *
51         * @param pChannel - engine channel which acquires an engine object
52         * @param pDevice  - the audio output device \a pChannel is connected to
53         */
54        Engine* Engine::AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) {
55            Engine* pEngine = NULL;
56            // check if there's already an engine for the given audio output device
57            if (engines.count(pDevice)) {
58                dmsg(4,("Using existing gig::Engine.\n"));
59                pEngine = engines[pDevice];
60            } else { // create a new engine (and disk thread) instance for the given audio output device
61                dmsg(4,("Creating new gig::Engine.\n"));
62                pEngine = (Engine*) EngineFactory::Create("gig");
63                pEngine->Connect(pDevice);
64                engines[pDevice] = pEngine;
65            }
66            // register engine channel to the engine instance
67            pEngine->engineChannels.add(pChannel);
68            // remember index in the ArrayList
69            pChannel->iEngineIndexSelf = pEngine->engineChannels.size() - 1;
70            dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size()));
71            return pEngine;
72        }
73    
74        /**
75         * Once an engine channel is disconnected from an audio output device,
76         * it wil immediately call this method to unregister itself from the
77         * engine instance and if that engine instance is not used by any other
78         * engine channel anymore, then that engine instance will be destroyed.
79         *
80         * @param pChannel - engine channel which wants to disconnect from it's
81         *                   engine instance
82         * @param pDevice  - audio output device \a pChannel was connected to
83         */
84        void Engine::FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) {
85            dmsg(4,("Disconnecting EngineChannel from gig::Engine.\n"));
86            Engine* pEngine = engines[pDevice];
87            // unregister EngineChannel from the Engine instance
88            pEngine->engineChannels.remove(pChannel);
89            // if the used Engine instance is not used anymore, then destroy it
90            if (pEngine->engineChannels.empty()) {
91                pDevice->Disconnect(pEngine);
92                engines.erase(pDevice);
93                delete pEngine;
94                dmsg(4,("Destroying gig::Engine.\n"));
95            }
96            else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size()));
97        }
98    
99        /**
100         * Constructor
101         */
102      Engine::Engine() {      Engine::Engine() {
         pRIFF              = NULL;  
         pGig               = NULL;  
         pInstrument        = NULL;  
103          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
104          pDiskThread        = NULL;          pDiskThread        = NULL;
105          pEventGenerator    = NULL;          pEventGenerator    = NULL;
106          pSysexBuffer       = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0);          pSysexBuffer       = new RingBuffer<uint8_t>(CONFIG_SYSEX_BUFFER_SIZE, 0);
107          pEventQueue        = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue        = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);
108          pEventPool         = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);
109          pVoicePool         = new Pool<Voice>(MAX_AUDIO_VOICES);          pVoicePool         = new Pool<Voice>(CONFIG_MAX_VOICES);
         pActiveKeys        = new Pool<uint>(128);  
110          pVoiceStealingQueue = new RTList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
111          pEvents            = new RTList<Event>(pEventPool);          pGlobalEvents      = new RTList<Event>(pEventPool);
         pCCEvents          = new RTList<Event>(pEventPool);  
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i] = new RTList<Event>(pEventPool);  
         }  
         for (uint i = 0; i < 128; i++) {  
             pMIDIKeyInfo[i].pActiveVoices  = new RTList<Voice>(pVoicePool);  
             pMIDIKeyInfo[i].KeyPressed     = false;  
             pMIDIKeyInfo[i].Active         = false;  
             pMIDIKeyInfo[i].ReleaseTrigger = false;  
             pMIDIKeyInfo[i].pEvents        = new RTList<Event>(pEventPool);  
         }  
112          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
113              iterVoice->SetEngine(this);              iterVoice->SetEngine(this);
114          }          }
# Line 71  namespace LinuxSampler { namespace gig { Line 118  namespace LinuxSampler { namespace gig {
118          pBasicFilterParameters  = NULL;          pBasicFilterParameters  = NULL;
119          pMainFilterParameters   = NULL;          pMainFilterParameters   = NULL;
120    
         InstrumentIdx = -1;  
         InstrumentStat = -1;  
   
         AudioDeviceChannelLeft  = -1;  
         AudioDeviceChannelRight = -1;  
   
121          ResetInternal();          ResetInternal();
122      }      }
123    
124        /**
125         * Destructor
126         */
127      Engine::~Engine() {      Engine::~Engine() {
128          if (pDiskThread) {          if (pDiskThread) {
129              dmsg(1,("Stopping disk thread..."));              dmsg(1,("Stopping disk thread..."));
# Line 87  namespace LinuxSampler { namespace gig { Line 131  namespace LinuxSampler { namespace gig {
131              delete pDiskThread;              delete pDiskThread;
132              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
133          }          }
   
         if (pInstrument) Instruments.HandBack(pInstrument, this);  
   
         if (pGig)  delete pGig;  
         if (pRIFF) delete pRIFF;  
         for (uint i = 0; i < 128; i++) {  
             if (pMIDIKeyInfo[i].pActiveVoices) delete pMIDIKeyInfo[i].pActiveVoices;  
             if (pMIDIKeyInfo[i].pEvents)       delete pMIDIKeyInfo[i].pEvents;  
         }  
         for (uint i = 0; i < Event::destination_count; i++) {  
             if (pSynthesisEvents[i]) delete pSynthesisEvents[i];  
         }  
         if (pEvents)     delete pEvents;  
         if (pCCEvents)   delete pCCEvents;  
134          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
135          if (pEventPool)  delete pEventPool;          if (pEventPool)  delete pEventPool;
136          if (pVoicePool) {          if (pVoicePool) {
137                  pVoicePool->clear();              pVoicePool->clear();
138                  delete pVoicePool;              delete pVoicePool;
139          }          }
         if (pActiveKeys) delete pActiveKeys;  
         if (pSysexBuffer) delete pSysexBuffer;  
140          if (pEventGenerator) delete pEventGenerator;          if (pEventGenerator) delete pEventGenerator;
141          if (pMainFilterParameters) delete[] pMainFilterParameters;          if (pMainFilterParameters) delete[] pMainFilterParameters;
142          if (pBasicFilterParameters) delete[] pBasicFilterParameters;          if (pBasicFilterParameters) delete[] pBasicFilterParameters;
143          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);
144          if (pVoiceStealingQueue) delete pVoiceStealingQueue;          if (pVoiceStealingQueue) delete pVoiceStealingQueue;
145            if (pSysexBuffer) delete pSysexBuffer;
146            EngineFactory::Destroy(this);
147      }      }
148    
149      void Engine::Enable() {      void Engine::Enable() {
# Line 140  namespace LinuxSampler { namespace gig { Line 170  namespace LinuxSampler { namespace gig {
170       */       */
171      void Engine::Reset() {      void Engine::Reset() {
172          DisableAndLock();          DisableAndLock();
   
         //if (pAudioOutputDevice->IsPlaying()) { // if already running  
             /*  
             // signal audio thread not to enter render part anymore  
             SuspensionRequested = true;  
             // sleep until wakened by audio thread  
             pthread_mutex_lock(&__render_state_mutex);  
             pthread_cond_wait(&__render_exit_condition, &__render_state_mutex);  
             pthread_mutex_unlock(&__render_state_mutex);  
             */  
         //}  
   
         //if (wasplaying) pAudioOutputDevice->Stop();  
   
173          ResetInternal();          ResetInternal();
   
         // signal audio thread to continue with rendering  
         //SuspensionRequested = false;  
174          Enable();          Enable();
175      }      }
176    
# Line 166  namespace LinuxSampler { namespace gig { Line 179  namespace LinuxSampler { namespace gig {
179       *  control and status variables. This method is not thread safe!       *  control and status variables. This method is not thread safe!
180       */       */
181      void Engine::ResetInternal() {      void Engine::ResetInternal() {
         Pitch               = 0;  
         SustainPedal        = false;  
182          ActiveVoiceCount    = 0;          ActiveVoiceCount    = 0;
183          ActiveVoiceCountMax = 0;          ActiveVoiceCountMax = 0;
         GlobalVolume        = 1.0;  
         CurrentKeyDimension = 0;  
184    
185          // reset voice stealing parameters          // reset voice stealing parameters
         itLastStolenVoice = RTList<Voice>::Iterator();  
         iuiLastStolenKey  = RTList<uint>::Iterator();  
186          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
187            itLastStolenVoice  = RTList<Voice>::Iterator();
188            iuiLastStolenKey   = RTList<uint>::Iterator();
189            pLastStolenChannel = NULL;
190    
191          // reset to normal chromatic scale (means equal temper)          // reset to normal chromatic scale (means equal temper)
192          memset(&ScaleTuning[0], 0x00, 12);          memset(&ScaleTuning[0], 0x00, 12);
193    
         // set all MIDI controller values to zero  
         memset(ControllerTable, 0x00, 128);  
   
         // reset key info  
         for (uint i = 0; i < 128; i++) {  
             pMIDIKeyInfo[i].pActiveVoices->clear();  
             pMIDIKeyInfo[i].pEvents->clear();  
             pMIDIKeyInfo[i].KeyPressed     = false;  
             pMIDIKeyInfo[i].Active         = false;  
             pMIDIKeyInfo[i].ReleaseTrigger = false;  
             pMIDIKeyInfo[i].itSelf         = Pool<uint>::Iterator();  
         }  
   
         // reset all key groups  
         map<uint,uint*>::iterator iter = ActiveKeyGroups.begin();  
         for (; iter != ActiveKeyGroups.end(); iter++) iter->second = NULL;  
   
194          // reset all voices          // reset all voices
195          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
196              iterVoice->Reset();              iterVoice->Reset();
197          }          }
198          pVoicePool->clear();          pVoicePool->clear();
199    
         // free all active keys  
         pActiveKeys->clear();  
   
200          // reset disk thread          // reset disk thread
201          if (pDiskThread) pDiskThread->Reset();          if (pDiskThread) pDiskThread->Reset();
202    
# Line 215  namespace LinuxSampler { namespace gig { Line 205  namespace LinuxSampler { namespace gig {
205      }      }
206    
207      /**      /**
208       *  Load an instrument from a .gig file.       * Connect this engine instance with the given audio output device.
209         * This method will be called when an Engine instance is created.
210         * All of the engine's data structures which are dependant to the used
211         * audio output device / driver will be (re)allocated and / or
212         * adjusted appropriately.
213       *       *
214       *  @param FileName   - file name of the Gigasampler instrument file       * @param pAudioOut - audio output device to connect to
      *  @param Instrument - index of the instrument in the .gig file  
      *  @throws LinuxSamplerException  on error  
      *  @returns          detailed description of the method call result  
215       */       */
     void Engine::LoadInstrument(const char* FileName, uint Instrument) {  
   
         DisableAndLock();  
   
         ResetInternal(); // reset engine  
   
         // free old instrument  
         if (pInstrument) {  
             // give old instrument back to instrument manager  
             Instruments.HandBack(pInstrument, this);  
         }  
   
         InstrumentFile = FileName;  
         InstrumentIdx = Instrument;  
         InstrumentStat = 0;  
   
         // delete all key groups  
         ActiveKeyGroups.clear();  
   
         // request gig instrument from instrument manager  
         try {  
             instrument_id_t instrid;  
             instrid.FileName    = FileName;  
             instrid.iInstrument = Instrument;  
             pInstrument = Instruments.Borrow(instrid, this);  
             if (!pInstrument) {  
                 InstrumentStat = -1;  
                 dmsg(1,("no instrument loaded!!!\n"));  
                 exit(EXIT_FAILURE);  
             }  
         }  
         catch (RIFF::Exception e) {  
             InstrumentStat = -2;  
             String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message;  
             throw LinuxSamplerException(msg);  
         }  
         catch (InstrumentResourceManagerException e) {  
             InstrumentStat = -3;  
             String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message();  
             throw LinuxSamplerException(msg);  
         }  
         catch (...) {  
             InstrumentStat = -4;  
             throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file.");  
         }  
   
         // rebuild ActiveKeyGroups map with key groups of current instrument  
         for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion())  
             if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL;  
   
         InstrumentIdxName = pInstrument->pInfo->Name;  
         InstrumentStat = 100;  
   
         // inform audio driver for the need of two channels  
         try {  
             if (pAudioOutputDevice) pAudioOutputDevice->AcquireChannels(2); // gig Engine only stereo  
         }  
         catch (AudioOutputException e) {  
             String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();  
             throw LinuxSamplerException(msg);  
         }  
   
         Enable();  
     }  
   
     /**  
      * Will be called by the InstrumentResourceManager when the instrument  
      * we are currently using in this engine is going to be updated, so we  
      * can stop playback before that happens.  
      */  
     void Engine::ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg) {  
         dmsg(3,("gig::Engine: Received instrument update message.\n"));  
         DisableAndLock();  
         ResetInternal();  
         this->pInstrument = NULL;  
     }  
   
     /**  
      * Will be called by the InstrumentResourceManager when the instrument  
      * update process was completed, so we can continue with playback.  
      */  
     void Engine::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) {  
         this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument())  
         Enable();  
     }  
   
216      void Engine::Connect(AudioOutputDevice* pAudioOut) {      void Engine::Connect(AudioOutputDevice* pAudioOut) {
217          pAudioOutputDevice = pAudioOut;          pAudioOutputDevice = pAudioOut;
218    
# Line 322  namespace LinuxSampler { namespace gig { Line 227  namespace LinuxSampler { namespace gig {
227              throw LinuxSamplerException(msg);              throw LinuxSamplerException(msg);
228          }          }
229    
230          this->AudioDeviceChannelLeft  = 0;          this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle();
231          this->AudioDeviceChannelRight = 1;          this->SampleRate         = pAudioOutputDevice->SampleRate();
         this->pOutputLeft             = pAudioOutputDevice->Channel(0)->Buffer();  
         this->pOutputRight            = pAudioOutputDevice->Channel(1)->Buffer();  
         this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();  
         this->SampleRate              = pAudioOutputDevice->SampleRate();  
232    
233          // FIXME: audio drivers with varying fragment sizes might be a problem here          // FIXME: audio drivers with varying fragment sizes might be a problem here
234          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1;
235          if (MaxFadeOutPos < 0)          if (MaxFadeOutPos < 0)
236              throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h to big for current audio fragment size / sampling rate!");              throw LinuxSamplerException("CONFIG_EG_MIN_RELEASE_TIME too big for current audio fragment size / sampling rate!");
237    
238          // (re)create disk thread          // (re)create disk thread
239          if (this->pDiskThread) {          if (this->pDiskThread) {
# Line 341  namespace LinuxSampler { namespace gig { Line 242  namespace LinuxSampler { namespace gig {
242              delete this->pDiskThread;              delete this->pDiskThread;
243              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
244          }          }
245          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6); //FIXME: assuming stereo
246          if (!pDiskThread) {          if (!pDiskThread) {
247              dmsg(0,("gig::Engine  new diskthread = NULL\n"));              dmsg(0,("gig::Engine  new diskthread = NULL\n"));
248              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
# Line 386  namespace LinuxSampler { namespace gig { Line 287  namespace LinuxSampler { namespace gig {
287          }          }
288      }      }
289    
290      void Engine::DisconnectAudioOutputDevice() {      /**
291          if (pAudioOutputDevice) { // if clause to prevent disconnect loops       * Clear all engine global event lists.
292              AudioOutputDevice* olddevice = pAudioOutputDevice;       */
293              pAudioOutputDevice = NULL;      void Engine::ClearEventLists() {
294              olddevice->Disconnect(this);          pGlobalEvents->clear();
295              AudioDeviceChannelLeft  = -1;      }
296              AudioDeviceChannelRight = -1;  
297        /**
298         * Copy all events from the engine's global input queue buffer to the
299         * engine's internal event list. This will be done at the beginning of
300         * each audio cycle (that is each RenderAudio() call) to distinguish
301         * all global events which have to be processed in the current audio
302         * cycle. These events are usually just SysEx messages. Every
303         * EngineChannel has it's own input event queue buffer and event list
304         * to handle common events like NoteOn, NoteOff and ControlChange
305         * events.
306         *
307         * @param Samples - number of sample points to be processed in the
308         *                  current audio cycle
309         */
310        void Engine::ImportEvents(uint Samples) {
311            RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
312            Event* pEvent;
313            while (true) {
314                // get next event from input event queue
315                if (!(pEvent = eventQueueReader.pop())) break;
316                // if younger event reached, ignore that and all subsequent ones for now
317                if (pEvent->FragmentPos() >= Samples) {
318                    eventQueueReader--;
319                    dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));
320                    pEvent->ResetFragmentPos();
321                    break;
322                }
323                // copy event to internal event list
324                if (pGlobalEvents->poolIsEmpty()) {
325                    dmsg(1,("Event pool emtpy!\n"));
326                    break;
327                }
328                *pGlobalEvents->allocAppend() = *pEvent;
329          }          }
330            eventQueueReader.free(); // free all copied events from input queue
331      }      }
332    
333      /**      /**
# Line 409  namespace LinuxSampler { namespace gig { Line 343  namespace LinuxSampler { namespace gig {
343      int Engine::RenderAudio(uint Samples) {      int Engine::RenderAudio(uint Samples) {
344          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));
345    
346          // return if no instrument loaded or engine disabled          // return if engine disabled
347          if (EngineDisabled.Pop()) {          if (EngineDisabled.Pop()) {
348              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));
349              return 0;              return 0;
350          }          }
         if (!pInstrument) {  
             dmsg(5,("gig::Engine: no instrument loaded\n"));  
             return 0;  
         }  
   
351    
352          // update time of start and end of this audio fragment (as events' time stamps relate to this)          // update time of start and end of this audio fragment (as events' time stamps relate to this)
353          pEventGenerator->UpdateFragmentTime(Samples);          pEventGenerator->UpdateFragmentTime(Samples);
354    
355            // get all events from the engine's global input event queue which belong to the current fragment
356            // (these are usually just SysEx messages)
357            ImportEvents(Samples);
358    
359          // empty the event lists for the new fragment          // process engine global events (these are currently only MIDI System Exclusive messages)
         pEvents->clear();  
         pCCEvents->clear();  
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i]->clear();  
         }  
360          {          {
361              RTList<uint>::Iterator iuiKey = pActiveKeys->first();              RTList<Event>::Iterator itEvent = pGlobalEvents->first();
362              RTList<uint>::Iterator end    = pActiveKeys->end();              RTList<Event>::Iterator end     = pGlobalEvents->end();
363              for(; iuiKey != end; ++iuiKey) {              for (; itEvent != end; ++itEvent) {
364                  pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key                  switch (itEvent->Type) {
365                        case Event::type_sysex:
366                            dmsg(5,("Engine: Sysex received\n"));
367                            ProcessSysex(itEvent);
368                            break;
369                    }
370              }              }
371          }          }
372    
373            // We only allow a maximum of CONFIG_MAX_VOICES voices to be stolen
374            // in each audio fragment. All subsequent request for spawning new
375            // voices in the same audio fragment will be ignored.
376            VoiceTheftsLeft = CONFIG_MAX_VOICES;
377    
378          // get all events from the input event queue which belong to the current fragment          // reset internal voice counter (just for statistic of active voices)
379          {          ActiveVoiceCountTemp = 0;
380              RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();  
381              Event* pEvent;  
382              while (true) {          // handle events on all engine channels
383                  // get next event from input event queue          for (int i = 0; i < engineChannels.size(); i++) {
384                  if (!(pEvent = eventQueueReader.pop())) break;              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
385                  // if younger event reached, ignore that and all subsequent ones for now              ProcessEvents(engineChannels[i], Samples);
386                  if (pEvent->FragmentPos() >= Samples) {          }
387                      eventQueueReader--;  
388                      dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));          // render all 'normal', active voices on all engine channels
389                      pEvent->ResetFragmentPos();          for (int i = 0; i < engineChannels.size(); i++) {
390                      break;              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
391                  }              RenderActiveVoices(engineChannels[i], Samples);
392                  // copy event to internal event list          }
393                  if (pEvents->poolIsEmpty()) {  
394                      dmsg(1,("Event pool emtpy!\n"));          // now that all ordinary voices on ALL engine channels are rendered, render new stolen voices
395                      break;          RenderStolenVoices(Samples);
396                  }  
397                  *pEvents->allocAppend() = *pEvent;          // handle cleanup on all engine channels for the next audio fragment
398              }          for (int i = 0; i < engineChannels.size(); i++) {
399              eventQueueReader.free(); // free all copied events from input queue              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
400                PostProcess(engineChannels[i]);
401          }          }
402    
403    
404            // empty the engine's event list for the next audio fragment
405            ClearEventLists();
406    
407            // reset voice stealing for the next audio fragment
408            pVoiceStealingQueue->clear();
409            itLastStolenVoice  = RTList<Voice>::Iterator();
410            iuiLastStolenKey   = RTList<uint>::Iterator();
411            pLastStolenChannel = NULL;
412    
413            // just some statistics about this engine instance
414            ActiveVoiceCount = ActiveVoiceCountTemp;
415            if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
416    
417            FrameTime += Samples;
418    
419            return 0;
420        }
421    
422        /**
423         * Dispatch and handle all events in this audio fragment for the given
424         * engine channel.
425         *
426         * @param pEngineChannel - engine channel on which events should be
427         *                         processed
428         * @param Samples        - amount of sample points to be processed in
429         *                         this audio fragment cycle
430         */
431        void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {
432            // get all events from the engine channels's input event queue which belong to the current fragment
433            // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)
434            pEngineChannel->ImportEvents(Samples);
435    
436          // process events          // process events
437          {          {
438              RTList<Event>::Iterator itEvent = pEvents->first();              RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first();
439              RTList<Event>::Iterator end     = pEvents->end();              RTList<Event>::Iterator end     = pEngineChannel->pEvents->end();
440              for (; itEvent != end; ++itEvent) {              for (; itEvent != end; ++itEvent) {
441                  switch (itEvent->Type) {                  switch (itEvent->Type) {
442                      case Event::type_note_on:                      case Event::type_note_on:
443                          dmsg(5,("Engine: Note on received\n"));                          dmsg(5,("Engine: Note on received\n"));
444                          ProcessNoteOn(itEvent);                          ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent);
445                          break;                          break;
446                      case Event::type_note_off:                      case Event::type_note_off:
447                          dmsg(5,("Engine: Note off received\n"));                          dmsg(5,("Engine: Note off received\n"));
448                          ProcessNoteOff(itEvent);                          ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent);
449                          break;                          break;
450                      case Event::type_control_change:                      case Event::type_control_change:
451                          dmsg(5,("Engine: MIDI CC received\n"));                          dmsg(5,("Engine: MIDI CC received\n"));
452                          ProcessControlChange(itEvent);                          ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent);
453                          break;                          break;
454                      case Event::type_pitchbend:                      case Event::type_pitchbend:
455                          dmsg(5,("Engine: Pitchbend received\n"));                          dmsg(5,("Engine: Pitchbend received\n"));
456                          ProcessPitchbend(itEvent);                          ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent);
                         break;  
                     case Event::type_sysex:  
                         dmsg(5,("Engine: Sysex received\n"));  
                         ProcessSysex(itEvent);  
457                          break;                          break;
458                  }                  }
459              }              }
460          }          }
461        }
462    
463        /**
464          int active_voices = 0;       * Render all 'normal' voices (that is voices which were not stolen in
465         * this fragment) on the given engine channel.
466          // render audio from all active voices       *
467          {       * @param pEngineChannel - engine channel on which audio should be
468              RTList<uint>::Iterator iuiKey = pActiveKeys->first();       *                         rendered
469              RTList<uint>::Iterator end    = pActiveKeys->end();       * @param Samples        - amount of sample points to be rendered in
470              while (iuiKey != end) { // iterate through all active keys       *                         this audio fragment cycle
471                  midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];       */
472                  ++iuiKey;      void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {
473            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
474                  RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
475                  RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();          while (iuiKey != end) { // iterate through all active keys
476                  for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
477                      // now render current voice              ++iuiKey;
478                      itVoice->Render(Samples);  
479                      if (itVoice->IsActive()) active_voices++; // still active              RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
480                      else { // voice reached end, is now inactive              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
481                          FreeVoice(itVoice); // remove voice from the list of active voices              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
482                      }                  // now render current voice
483                    itVoice->Render(Samples);
484                    if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active
485                    else { // voice reached end, is now inactive
486                        FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices
487                  }                  }
488              }              }
489          }          }
490        }
491    
492        /**
493          // now render all postponed voices from voice stealing       * Render all stolen voices (only voices which were stolen in this
494          {       * fragment) on the given engine channel. Stolen voices are rendered
495              RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();       * after all normal voices have been rendered; this is needed to render
496              RTList<Event>::Iterator end               = pVoiceStealingQueue->end();       * audio of those voices which were selected for voice stealing until
497              for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {       * the point were the stealing (that is the take over of the voice)
498                  Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);       * actually happened.
499                  if (itNewVoice) {       *
500                      for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) {       * @param pEngineChannel - engine channel on which audio should be
501                          itNewVoice->Render(Samples);       *                         rendered
502                          if (itNewVoice->IsActive()) active_voices++; // still active       * @param Samples        - amount of sample points to be rendered in
503                          else { // voice reached end, is now inactive       *                         this audio fragment cycle
504                              FreeVoice(itNewVoice); // remove voice from the list of active voices       */
505                          }      void Engine::RenderStolenVoices(uint Samples) {
506                      }          RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
507            RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
508            for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
509                EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
510                Pool<Voice>::Iterator itNewVoice =
511                    LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);
512                if (itNewVoice) {
513                    itNewVoice->Render(Samples);
514                    if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active
515                    else { // voice reached end, is now inactive
516                        FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices
517                  }                  }
                 else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));  
518              }              }
519          }              else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
         // reset voice stealing for the new fragment  
         pVoiceStealingQueue->clear();  
         itLastStolenVoice = RTList<Voice>::Iterator();  
         iuiLastStolenKey  = RTList<uint>::Iterator();  
520    
521                // we need to clear the key's event list explicitly here in case key was never active
522                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key];
523                pKey->VoiceTheftsQueued--;
524                if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear();
525            }
526        }
527    
528        /**
529         * Free all keys which have turned inactive in this audio fragment, from
530         * the list of active keys and clear all event lists on that engine
531         * channel.
532         *
533         * @param pEngineChannel - engine channel to cleanup
534         */
535        void Engine::PostProcess(EngineChannel* pEngineChannel) {
536          // free all keys which have no active voices left          // free all keys which have no active voices left
537          {          {
538              RTList<uint>::Iterator iuiKey = pActiveKeys->first();              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
539              RTList<uint>::Iterator end    = pActiveKeys->end();              RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
540              while (iuiKey != end) { // iterate through all active keys              while (iuiKey != end) { // iterate through all active keys
541                  midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
542                  ++iuiKey;                  ++iuiKey;
543                  if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey);                  if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey);
544                  #if DEVMODE                  #if CONFIG_DEVMODE
545                  else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)                  else { // just a sanity check for debugging
546                      RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();                      RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
547                      RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();                      RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
548                      for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key                      for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
# Line 561  namespace LinuxSampler { namespace gig { Line 551  namespace LinuxSampler { namespace gig {
551                          }                          }
552                      }                      }
553                  }                  }
554                  #endif // DEVMODE                  #endif // CONFIG_DEVMODE
555              }              }
556          }          }
557    
558            // empty the engine channel's own event lists
559          // write that to the disk thread class so that it can print it          pEngineChannel->ClearEventLists();
         // on the console for debugging purposes  
         ActiveVoiceCount = active_voices;  
         if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;  
   
   
         return 0;  
     }  
   
     /**  
      *  Will be called by the MIDIIn Thread to let the audio thread trigger a new  
      *  voice for the given key.  
      *  
      *  @param Key      - MIDI key number of the triggered key  
      *  @param Velocity - MIDI velocity value of the triggered key  
      */  
     void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {  
         Event event               = pEventGenerator->CreateEvent();  
         event.Type                = Event::type_note_on;  
         event.Param.Note.Key      = Key;  
         event.Param.Note.Velocity = Velocity;  
         if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);  
         else dmsg(1,("Engine: Input event queue full!"));  
     }  
   
     /**  
      *  Will be called by the MIDIIn Thread to signal the audio thread to release  
      *  voice(s) on the given key.  
      *  
      *  @param Key      - MIDI key number of the released key  
      *  @param Velocity - MIDI release velocity value of the released key  
      */  
     void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) {  
         Event event               = pEventGenerator->CreateEvent();  
         event.Type                = Event::type_note_off;  
         event.Param.Note.Key      = Key;  
         event.Param.Note.Velocity = Velocity;  
         if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);  
         else dmsg(1,("Engine: Input event queue full!"));  
     }  
   
     /**  
      *  Will be called by the MIDIIn Thread to signal the audio thread to change  
      *  the pitch value for all voices.  
      *  
      *  @param Pitch - MIDI pitch value (-8192 ... +8191)  
      */  
     void Engine::SendPitchbend(int Pitch) {  
         Event event             = pEventGenerator->CreateEvent();  
         event.Type              = Event::type_pitchbend;  
         event.Param.Pitch.Pitch = Pitch;  
         if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);  
         else dmsg(1,("Engine: Input event queue full!"));  
     }  
   
     /**  
      *  Will be called by the MIDIIn Thread to signal the audio thread that a  
      *  continuous controller value has changed.  
      *  
      *  @param Controller - MIDI controller number of the occured control change  
      *  @param Value      - value of the control change  
      */  
     void Engine::SendControlChange(uint8_t Controller, uint8_t Value) {  
         Event event               = pEventGenerator->CreateEvent();  
         event.Type                = Event::type_control_change;  
         event.Param.CC.Controller = Controller;  
         event.Param.CC.Value      = Value;  
         if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);  
         else dmsg(1,("Engine: Input event queue full!"));  
560      }      }
561    
562      /**      /**
# Line 648  namespace LinuxSampler { namespace gig { Line 570  namespace LinuxSampler { namespace gig {
570          Event event             = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
571          event.Type              = Event::type_sysex;          event.Type              = Event::type_sysex;
572          event.Param.Sysex.Size  = Size;          event.Param.Sysex.Size  = Size;
573            event.pEngineChannel    = NULL; // as Engine global event
574          if (pEventQueue->write_space() > 0) {          if (pEventQueue->write_space() > 0) {
575              if (pSysexBuffer->write_space() >= Size) {              if (pSysexBuffer->write_space() >= Size) {
576                  // copy sysex data to input buffer                  // copy sysex data to input buffer
# Line 663  namespace LinuxSampler { namespace gig { Line 586  namespace LinuxSampler { namespace gig {
586                  // finally place sysex event into input event queue                  // finally place sysex event into input event queue
587                  pEventQueue->push(&event);                  pEventQueue->push(&event);
588              }              }
589              else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,SYSEX_BUFFER_SIZE));              else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,CONFIG_SYSEX_BUFFER_SIZE));
590          }          }
591          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
592      }      }
# Line 671  namespace LinuxSampler { namespace gig { Line 594  namespace LinuxSampler { namespace gig {
594      /**      /**
595       *  Assigns and triggers a new voice for the respective MIDI key.       *  Assigns and triggers a new voice for the respective MIDI key.
596       *       *
597         *  @param pEngineChannel - engine channel on which this event occured on
598       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
599       */       */
600      void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) {      void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
601    
602          const int key = itNoteOnEvent->Param.Note.Key;          const int key = itNoteOnEvent->Param.Note.Key;
603    
604          // Change key dimension value if key is in keyswitching area          // Change key dimension value if key is in keyswitching area
605          if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)          {
606              CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) /              const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument;
607                  (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);              if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)
608                    pEngineChannel->CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) /
609                        (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);
610            }
611    
612          midi_key_info_t* pKey = &pMIDIKeyInfo[key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];
613    
614          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
615            pKey->Velocity   = itNoteOnEvent->Param.Note.Velocity;
616            pKey->NoteOnTime = FrameTime + itNoteOnEvent->FragmentPos(); // will be used to calculate note length
617    
618          // cancel release process of voices on this key if needed          // cancel release process of voices on this key if needed
619          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
620              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();
621              if (itCancelReleaseEvent) {              if (itCancelReleaseEvent) {
622                  *itCancelReleaseEvent = *itNoteOnEvent;                  // copy event                  *itCancelReleaseEvent = *itNoteOnEvent;                  // copy event
# Line 699  namespace LinuxSampler { namespace gig { Line 628  namespace LinuxSampler { namespace gig {
628          // move note on event to the key's own event list          // move note on event to the key's own event list
629          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
630    
631          // allocate and trigger a new voice for the key          // allocate and trigger new voice(s) for the key
632          LaunchVoice(itNoteOnEventOnKeyList, 0, false, true);          {
633                // first, get total amount of required voices (dependant on amount of layers)
634                ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key);
635                if (pRegion) {
636                    int voicesRequired = pRegion->Layers;
637                    // now launch the required amount of voices
638                    for (int i = 0; i < voicesRequired; i++)
639                        LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true);
640                }
641            }
642    
643            // if neither a voice was spawned or postponed then remove note on event from key again
644            if (!pKey->Active && !pKey->VoiceTheftsQueued)
645                pKey->pEvents->free(itNoteOnEventOnKeyList);
646    
647            pKey->RoundRobinIndex++;
648      }      }
649    
650      /**      /**
# Line 709  namespace LinuxSampler { namespace gig { Line 653  namespace LinuxSampler { namespace gig {
653       *  sustain pedal will be released or voice turned inactive by itself (e.g.       *  sustain pedal will be released or voice turned inactive by itself (e.g.
654       *  due to completion of sample playback).       *  due to completion of sample playback).
655       *       *
656         *  @param pEngineChannel - engine channel on which this event occured on
657       *  @param itNoteOffEvent - key, velocity and time stamp of the event       *  @param itNoteOffEvent - key, velocity and time stamp of the event
658       */       */
659      void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) {      void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) {
660          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];
661    
662          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
663    
664          // release voices on this key if needed          // release voices on this key if needed
665          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
666              itNoteOffEvent->Type = Event::type_release; // transform event type              itNoteOffEvent->Type = Event::type_release; // transform event type
         }  
667    
668          // move event to the key's own event list              // move event to the key's own event list
669          RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);              RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);
670    
671          // spawn release triggered voice(s) if needed              // spawn release triggered voice(s) if needed
672          if (pKey->ReleaseTrigger) {              if (pKey->ReleaseTrigger) {
673              LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples                  // first, get total amount of required voices (dependant on amount of layers)
674              pKey->ReleaseTrigger = false;                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
675                    if (pRegion) {
676                        int voicesRequired = pRegion->Layers;
677    
678                        // MIDI note-on velocity is used instead of note-off velocity
679                        itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity;
680    
681                        // now launch the required amount of voices
682                        for (int i = 0; i < voicesRequired; i++)
683                            LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
684                    }
685                    pKey->ReleaseTrigger = false;
686                }
687    
688                // if neither a voice was spawned or postponed then remove note off event from key again
689                if (!pKey->Active && !pKey->VoiceTheftsQueued)
690                    pKey->pEvents->free(itNoteOffEventOnKeyList);
691          }          }
692      }      }
693    
# Line 735  namespace LinuxSampler { namespace gig { Line 695  namespace LinuxSampler { namespace gig {
695       *  Moves pitchbend event from the general (input) event list to the pitch       *  Moves pitchbend event from the general (input) event list to the pitch
696       *  event list.       *  event list.
697       *       *
698         *  @param pEngineChannel - engine channel on which this event occured on
699       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event
700       */       */
701      void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) {      void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) {
702          this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value          pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value
703          itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]);          itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]);
704      }      }
705    
706      /**      /**
# Line 747  namespace LinuxSampler { namespace gig { Line 708  namespace LinuxSampler { namespace gig {
708       *  called by the ProcessNoteOn() method and by the voices itself       *  called by the ProcessNoteOn() method and by the voices itself
709       *  (e.g. to spawn further voices on the same key for layered sounds).       *  (e.g. to spawn further voices on the same key for layered sounds).
710       *       *
711         *  @param pEngineChannel      - engine channel on which this event occured on
712       *  @param itNoteOnEvent       - key, velocity and time stamp of the event       *  @param itNoteOnEvent       - key, velocity and time stamp of the event
713       *  @param iLayer              - layer index for the new voice (optional - only       *  @param iLayer              - layer index for the new voice (optional - only
714       *                               in case of layered sounds of course)       *                               in case of layered sounds of course)
# Line 759  namespace LinuxSampler { namespace gig { Line 721  namespace LinuxSampler { namespace gig {
721       *           if the voice wasn't triggered (for example when no region is       *           if the voice wasn't triggered (for example when no region is
722       *           defined for the given key).       *           defined for the given key).
723       */       */
724      Pool<Voice>::Iterator Engine::LaunchVoice(Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {      Pool<Voice>::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) {
725          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
726    
727          // allocate a new voice for the key          // allocate a new voice for the key
728          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
729          if (itNewVoice) {          if (itNewVoice) {
730              // launch the new voice              // launch the new voice
731              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {              if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pEngineChannel->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {
732                  dmsg(4,("Voice not triggered\n"));                  dmsg(4,("Voice not triggered\n"));
733                  pKey->pActiveVoices->free(itNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
734              }              }
735              else { // on success              else { // on success
736                  uint** ppKeyGroup = NULL;                  uint** ppKeyGroup = NULL;
737                  if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group                  if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group
738                      ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup];                      ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];
739                      if (*ppKeyGroup) { // if there's already an active key in that key group                      if (*ppKeyGroup) { // if there's already an active key in that key group
740                          midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup];                          midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup];
741                          // kill all voices on the (other) key                          // kill all voices on the (other) key
742                          RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();                          RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
743                          RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();                          RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
# Line 786  namespace LinuxSampler { namespace gig { Line 748  namespace LinuxSampler { namespace gig {
748                  }                  }
749                  if (!pKey->Active) { // mark as active key                  if (!pKey->Active) { // mark as active key
750                      pKey->Active = true;                      pKey->Active = true;
751                      pKey->itSelf = pActiveKeys->allocAppend();                      pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend();
752                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;
753                  }                  }
754                  if (itNewVoice->KeyGroup) {                  if (itNewVoice->KeyGroup) {
# Line 797  namespace LinuxSampler { namespace gig { Line 759  namespace LinuxSampler { namespace gig {
759              }              }
760          }          }
761          else if (VoiceStealing) {          else if (VoiceStealing) {
762              // first, get total amount of required voices (dependant on amount of layers)              // try to steal one voice
763              ::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);              int result = StealVoice(pEngineChannel, itNoteOnEvent);
764              if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed              if (!result) { // voice stolen successfully
765              int voicesRequired = pRegion->Layers;                  // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
766                    RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
767              // now steal the (remaining) amount of voices                  if (itStealEvent) {
768              for (int i = iLayer; i < voicesRequired; i++)                      *itStealEvent = *itNoteOnEvent; // copy event
769                  StealVoice(itNoteOnEvent);                      itStealEvent->Param.Note.Layer = iLayer;
770                        itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
771              // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died                      pKey->VoiceTheftsQueued++;
772              RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();                  }
773              if (itStealEvent) {                  else dmsg(1,("Voice stealing queue full!\n"));
                 *itStealEvent = *itNoteOnEvent; // copy event  
                 itStealEvent->Param.Note.Layer = iLayer;  
                 itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;  
774              }              }
             else dmsg(1,("Voice stealing queue full!\n"));  
775          }          }
776    
777          return Pool<Voice>::Iterator(); // no free voice or error          return Pool<Voice>::Iterator(); // no free voice or error
# Line 825  namespace LinuxSampler { namespace gig { Line 783  namespace LinuxSampler { namespace gig {
783       *  voice stealing and postpone the note-on event until the selected       *  voice stealing and postpone the note-on event until the selected
784       *  voice actually died.       *  voice actually died.
785       *       *
786         *  @param pEngineChannel - engine channel on which this event occured on
787       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
788         *  @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing
789       */       */
790      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) {      int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
791            if (!VoiceTheftsLeft) {
792                dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n"));
793                return -1;
794            }
795          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
796    
797              RTList<uint>::Iterator  iuiOldestKey;              RTList<Voice>::Iterator itSelectedVoice;
             RTList<Voice>::Iterator itOldestVoice;  
798    
799              // Select one voice for voice stealing              // Select one voice for voice stealing
800              switch (VOICE_STEAL_ALGORITHM) {              switch (CONFIG_VOICE_STEAL_ALGO) {
801    
802                  // try to pick the oldest voice on the key where the new                  // try to pick the oldest voice on the key where the new
803                  // voice should be spawned, if there is no voice on that                  // voice should be spawned, if there is no voice on that
804                  // key, or no voice left to kill there, then procceed with                  // key, or no voice left to kill, then procceed with
805                  // 'oldestkey' algorithm                  // 'oldestkey' algorithm
806                  case voice_steal_algo_keymask: {                  case voice_steal_algo_oldestvoiceonkey: {
807                      midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
808                      if (itLastStolenVoice) {                      itSelectedVoice = pSelectedKey->pActiveVoices->first();
809                          itOldestVoice = itLastStolenVoice;                      // proceed iterating if voice was created in this fragment cycle
810                          ++itOldestVoice;                      while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice;
811                      }                      // if we haven't found a voice then proceed with algorithm 'oldestkey'
812                      else { // no voice stolen in this audio fragment cycle yet                      if (itSelectedVoice && itSelectedVoice->hasRendered()) break;
                         itOldestVoice = pOldestKey->pActiveVoices->first();  
                     }  
                     if (itOldestVoice) {  
                         iuiOldestKey = pOldestKey->itSelf;  
                         break; // selection succeeded  
                     }  
813                  } // no break - intentional !                  } // no break - intentional !
814    
815                  // try to pick the oldest voice on the oldest active key                  // try to pick the oldest voice on the oldest active key
816                  // (caution: must stay after 'keymask' algorithm !)                  // from the same engine channel
817                    // (caution: must stay after 'oldestvoiceonkey' algorithm !)
818                  case voice_steal_algo_oldestkey: {                  case voice_steal_algo_oldestkey: {
819                      if (itLastStolenVoice) {                      if (this->itLastStolenVoice) {
820                          midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey];                          itSelectedVoice = this->itLastStolenVoice;
821                          itOldestVoice = itLastStolenVoice;                          ++itSelectedVoice;
822                          ++itOldestVoice;                          if (itSelectedVoice) break; // selection succeeded
823                          if (!itOldestVoice) {                          RTList<uint>::Iterator iuiSelectedKey = this->iuiLastStolenKey;
824                              iuiOldestKey = iuiLastStolenKey;                          ++iuiSelectedKey;
825                              ++iuiOldestKey;                          if (iuiSelectedKey) {
826                              if (iuiOldestKey) {                              this->iuiLastStolenKey = iuiSelectedKey;
827                                  midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];                              midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
828                                  itOldestVoice = pOldestKey->pActiveVoices->first();                              itSelectedVoice = pSelectedKey->pActiveVoices->first();
829                              }                              break; // selection succeeded
                             else {  
                                 dmsg(1,("gig::Engine: Warning, too less voices, even for voice stealing! - Better recompile with higher MAX_AUDIO_VOICES.\n"));  
                                 return;  
                             }  
830                          }                          }
                         else iuiOldestKey = iuiLastStolenKey;  
                     }  
                     else { // no voice stolen in this audio fragment cycle yet  
                         iuiOldestKey = pActiveKeys->first();  
                         midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];  
                         itOldestVoice = pOldestKey->pActiveVoices->first();  
831                      }                      }
832                      break;                      break;
833                  }                  }
# Line 888  namespace LinuxSampler { namespace gig { Line 836  namespace LinuxSampler { namespace gig {
836                  case voice_steal_algo_none:                  case voice_steal_algo_none:
837                  default: {                  default: {
838                      dmsg(1,("No free voice (voice stealing disabled)!\n"));                      dmsg(1,("No free voice (voice stealing disabled)!\n"));
839                      return;                      return -1;
840                  }                  }
841              }              }
842    
843              //FIXME: can be removed, just a sanity check for debugging              // if we couldn't steal a voice from the same engine channel then
844              if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));              // steal oldest voice on the oldest key from any other engine channel
845                if (!itSelectedVoice) {
846                    EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel;
847                    int iChannelIndex = pSelectedChannel->iEngineIndexSelf;
848                    while (true) {
849                        RTList<uint>::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first();
850                        if (iuiSelectedKey) {
851                            midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];
852                            itSelectedVoice    = pSelectedKey->pActiveVoices->first();
853                            iuiLastStolenKey   = iuiSelectedKey;
854                            pLastStolenChannel = pSelectedChannel;
855                            break; // selection succeeded
856                        }
857                        iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();
858                        pSelectedChannel =  engineChannels[iChannelIndex];
859                    }
860                }
861    
862                #if CONFIG_DEVMODE
863                if (!itSelectedVoice->IsActive()) {
864                    dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
865                    return -1;
866                }
867                #endif // CONFIG_DEVMODE
868    
869              // now kill the selected voice              // now kill the selected voice
870              itOldestVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
871              // remember which voice on which key we stole, so we can simply proceed for the next voice stealing  
872              this->itLastStolenVoice = itOldestVoice;              // remember which voice we stole, so we can simply proceed for the next voice stealing
873              this->iuiLastStolenKey = iuiOldestKey;              itLastStolenVoice = itSelectedVoice;
874    
875                --VoiceTheftsLeft;
876    
877                return 0; // success
878            }
879            else {
880                dmsg(1,("Event pool emtpy!\n"));
881                return -1;
882          }          }
         else dmsg(1,("Event pool emtpy!\n"));  
883      }      }
884    
885      /**      /**
# Line 910  namespace LinuxSampler { namespace gig { Line 888  namespace LinuxSampler { namespace gig {
888       *  it finished to playback its sample, finished its release stage or       *  it finished to playback its sample, finished its release stage or
889       *  just was killed.       *  just was killed.
890       *       *
891         *  @param pEngineChannel - engine channel on which this event occured on
892       *  @param itVoice - points to the voice to be freed       *  @param itVoice - points to the voice to be freed
893       */       */
894      void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) {      void Engine::FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice) {
895          if (itVoice) {          if (itVoice) {
896              midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey];
897    
898              uint keygroup = itVoice->KeyGroup;              uint keygroup = itVoice->KeyGroup;
899    
# Line 923  namespace LinuxSampler { namespace gig { Line 902  namespace LinuxSampler { namespace gig {
902    
903              // if no other voices left and member of a key group, remove from key group              // if no other voices left and member of a key group, remove from key group
904              if (pKey->pActiveVoices->isEmpty() && keygroup) {              if (pKey->pActiveVoices->isEmpty() && keygroup) {
905                  uint** ppKeyGroup = &ActiveKeyGroups[keygroup];                  uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup];
906                  if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group                  if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group
907              }              }
908          }          }
# Line 934  namespace LinuxSampler { namespace gig { Line 913  namespace LinuxSampler { namespace gig {
913       *  Called when there's no more voice left on a key, this call will       *  Called when there's no more voice left on a key, this call will
914       *  update the key info respectively.       *  update the key info respectively.
915       *       *
916         *  @param pEngineChannel - engine channel on which this event occured on
917       *  @param pKey - key which is now inactive       *  @param pKey - key which is now inactive
918       */       */
919      void Engine::FreeKey(midi_key_info_t* pKey) {      void Engine::FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey) {
920          if (pKey->pActiveVoices->isEmpty()) {          if (pKey->pActiveVoices->isEmpty()) {
921              pKey->Active = false;              pKey->Active = false;
922              pActiveKeys->free(pKey->itSelf); // remove key from list of active keys              pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys
923              pKey->itSelf = RTList<uint>::Iterator();              pKey->itSelf = RTList<uint>::Iterator();
924              pKey->ReleaseTrigger = false;              pKey->ReleaseTrigger = false;
925              pKey->pEvents->clear();              pKey->pEvents->clear();
# Line 952  namespace LinuxSampler { namespace gig { Line 932  namespace LinuxSampler { namespace gig {
932       *  Reacts on supported control change commands (e.g. pitch bend wheel,       *  Reacts on supported control change commands (e.g. pitch bend wheel,
933       *  modulation wheel, aftertouch).       *  modulation wheel, aftertouch).
934       *       *
935         *  @param pEngineChannel - engine channel on which this event occured on
936       *  @param itControlChangeEvent - controller, value and time stamp of the event       *  @param itControlChangeEvent - controller, value and time stamp of the event
937       */       */
938      void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) {      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {
939          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));          dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value));
940    
941          switch (itControlChangeEvent->Param.CC.Controller) {          // update controller value in the engine channel's controller table
942              case 64: {          pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
943                  if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) {  
944            // move event from the unsorted event list to the control change event list
945            Pool<Event>::Iterator itControlChangeEventOnCCList = itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents);
946    
947            switch (itControlChangeEventOnCCList->Param.CC.Controller) {
948                case 7: { // volume
949                    //TODO: not sample accurate yet
950                    pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f;
951                    break;
952                }
953                case 10: { // panpot
954                    //TODO: not sample accurate yet
955                    const int pan = (int) itControlChangeEventOnCCList->Param.CC.Value - 64;
956                    pEngineChannel->GlobalPanLeft  = 1.0f - float(RTMath::Max(pan, 0)) /  63.0f;
957                    pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f;
958                    break;
959                }
960                case 64: { // sustain
961                    if (itControlChangeEventOnCCList->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {
962                      dmsg(4,("PEDAL DOWN\n"));                      dmsg(4,("PEDAL DOWN\n"));
963                      SustainPedal = true;                      pEngineChannel->SustainPedal = true;
964    
965                      // cancel release process of voices if necessary                      // cancel release process of voices if necessary
966                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
967                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
968                          itControlChangeEvent->Type = Event::type_cancel_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
969                          while (iuiKey) {                          if (!pKey->KeyPressed) {
970                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
971                              ++iuiKey;                              if (itNewEvent) {
972                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
973                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();                                  itNewEvent->Type = Event::type_cancel_release; // transform event type
                                 if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list  
                                 else dmsg(1,("Event pool emtpy!\n"));  
974                              }                              }
975                                else dmsg(1,("Event pool emtpy!\n"));
976                          }                          }
977                      }                      }
978                  }                  }
979                  if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) {                  if (itControlChangeEventOnCCList->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {
980                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("PEDAL UP\n"));
981                      SustainPedal = false;                      pEngineChannel->SustainPedal = false;
982    
983                      // release voices if their respective key is not pressed                      // release voices if their respective key is not pressed
984                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
985                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
986                          itControlChangeEvent->Type = Event::type_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
987                          while (iuiKey) {                          if (!pKey->KeyPressed) {
988                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
989                              ++iuiKey;                              if (itNewEvent) {
990                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
991                                  RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();                                  itNewEvent->Type = Event::type_release; // transform event type
                                 if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list  
                                 else dmsg(1,("Event pool emtpy!\n"));  
992                              }                              }
993                                else dmsg(1,("Event pool emtpy!\n"));
994                          }                          }
995                      }                      }
996                  }                  }
997                  break;                  break;
998              }              }
         }  
999    
         // update controller value in the engine's controller table  
         ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;  
1000    
1001          // move event from the unsorted event list to the control change event list              // Channel Mode Messages
1002          itControlChangeEvent.moveToEndOf(pCCEvents);  
1003                case 120: { // all sound off
1004                    KillAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1005                    break;
1006                }
1007                case 121: { // reset all controllers
1008                    pEngineChannel->ResetControllers();
1009                    break;
1010                }
1011                case 123: { // all notes off
1012                    ReleaseAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1013                    break;
1014                }
1015            }
1016      }      }
1017    
1018      /**      /**
# Line 1023  namespace LinuxSampler { namespace gig { Line 1030  namespace LinuxSampler { namespace gig {
1030    
1031          switch (id) {          switch (id) {
1032              case 0x41: { // Roland              case 0x41: { // Roland
1033                    dmsg(3,("Roland Sysex\n"));
1034                  uint8_t device_id, model_id, cmd_id;                  uint8_t device_id, model_id, cmd_id;
1035                  if (!reader.pop(&device_id)) goto free_sysex_data;                  if (!reader.pop(&device_id)) goto free_sysex_data;
1036                  if (!reader.pop(&model_id))  goto free_sysex_data;                  if (!reader.pop(&model_id))  goto free_sysex_data;
# Line 1035  namespace LinuxSampler { namespace gig { Line 1043  namespace LinuxSampler { namespace gig {
1043                  const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later                  const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later
1044                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1045                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1046                        dmsg(3,("\tSystem Parameter\n"));
1047                  }                  }
1048                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1049                        dmsg(3,("\tCommon Parameter\n"));
1050                  }                  }
1051                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)
1052                      switch (addr[3]) {                      dmsg(3,("\tPart Parameter\n"));
1053                        switch (addr[2]) {
1054                          case 0x40: { // scale tuning                          case 0x40: { // scale tuning
1055                                dmsg(3,("\t\tScale Tuning\n"));
1056                              uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave                              uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave
1057                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;
1058                              uint8_t checksum;                              uint8_t checksum;
1059                              if (!reader.pop(&checksum))                      goto free_sysex_data;                              if (!reader.pop(&checksum)) goto free_sysex_data;
1060                              if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data;                              #if CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1061                                if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data;
1062                                #endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1063                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;
1064                              AdjustScale((int8_t*) scale_tunes);                              AdjustScale((int8_t*) scale_tunes);
1065                                dmsg(3,("\t\t\tNew scale applied.\n"));
1066                              break;                              break;
1067                          }                          }
1068                      }                      }
# Line 1092  namespace LinuxSampler { namespace gig { Line 1107  namespace LinuxSampler { namespace gig {
1107      }      }
1108    
1109      /**      /**
1110         * Releases all voices on an engine channel. All voices will go into
1111         * the release stage and thus it might take some time (e.g. dependant to
1112         * their envelope release time) until they actually die.
1113         *
1114         * @param pEngineChannel - engine channel on which all voices should be released
1115         * @param itReleaseEvent - event which caused this releasing of all voices
1116         */
1117        void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) {
1118            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1119            while (iuiKey) {
1120                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1121                ++iuiKey;
1122                // append a 'release' event to the key's own event list
1123                RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1124                if (itNewEvent) {
1125                    *itNewEvent = *itReleaseEvent; // copy original event (to the key's event list)
1126                    itNewEvent->Type = Event::type_release; // transform event type
1127                }
1128                else dmsg(1,("Event pool emtpy!\n"));
1129            }
1130        }
1131    
1132        /**
1133         * Kills all voices on an engine channel as soon as possible. Voices
1134         * won't get into release state, their volume level will be ramped down
1135         * as fast as possible.
1136         *
1137         * @param pEngineChannel - engine channel on which all voices should be killed
1138         * @param itKillEvent    - event which caused this killing of all voices
1139         */
1140        void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) {
1141            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1142            RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
1143            while (iuiKey != end) { // iterate through all active keys
1144                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1145                ++iuiKey;
1146                RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
1147                RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
1148                for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
1149                    itVoice->Kill(itKillEvent);
1150                }
1151            }
1152        }
1153    
1154        /**
1155       * Initialize the parameter sequence for the modulation destination given by       * Initialize the parameter sequence for the modulation destination given by
1156       * by 'dst' with the constant value given by val.       * by 'dst' with the constant value given by val.
1157       */       */
# Line 1106  namespace LinuxSampler { namespace gig { Line 1166  namespace LinuxSampler { namespace gig {
1166          }          }
1167      }      }
1168    
     float Engine::Volume() {  
         return GlobalVolume;  
     }  
   
     void Engine::Volume(float f) {  
         GlobalVolume = f;  
     }  
   
     uint Engine::Channels() {  
         return 2;  
     }  
   
     void Engine::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) {  
         AudioChannel* pChannel = pAudioOutputDevice->Channel(AudioDeviceChannel);  
         if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel));  
         switch (EngineAudioChannel) {  
             case 0: // left output channel  
                 pOutputLeft = pChannel->Buffer();  
                 AudioDeviceChannelLeft = AudioDeviceChannel;  
                 break;  
             case 1: // right output channel  
                 pOutputRight = pChannel->Buffer();  
                 AudioDeviceChannelRight = AudioDeviceChannel;  
                 break;  
             default:  
                 throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));  
         }  
     }  
   
     int Engine::OutputChannel(uint EngineAudioChannel) {  
         switch (EngineAudioChannel) {  
             case 0: // left channel  
                 return AudioDeviceChannelLeft;  
             case 1: // right channel  
                 return AudioDeviceChannelRight;  
             default:  
                 throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));  
         }  
     }  
   
1169      uint Engine::VoiceCount() {      uint Engine::VoiceCount() {
1170          return ActiveVoiceCount;          return ActiveVoiceCount;
1171      }      }
# Line 1175  namespace LinuxSampler { namespace gig { Line 1195  namespace LinuxSampler { namespace gig {
1195      }      }
1196    
1197      String Engine::EngineName() {      String Engine::EngineName() {
1198          return "GigEngine";          return LS_GIG_ENGINE_NAME;
     }  
   
     String Engine::InstrumentFileName() {  
         return InstrumentFile;  
     }  
   
     String Engine::InstrumentName() {  
         return InstrumentIdxName;  
     }  
   
     int Engine::InstrumentIndex() {  
         return InstrumentIdx;  
     }  
   
     int Engine::InstrumentStatus() {  
         return InstrumentStat;  
1199      }      }
1200    
1201      String Engine::Description() {      String Engine::Description() {
# Line 1199  namespace LinuxSampler { namespace gig { Line 1203  namespace LinuxSampler { namespace gig {
1203      }      }
1204    
1205      String Engine::Version() {      String Engine::Version() {
1206          String s = "$Revision: 1.24 $";          String s = "$Revision: 1.40 $";
1207          return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword          return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
1208      }      }
1209    
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