/[svn]/linuxsampler/trunk/src/engines/gig/Engine.cpp
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revision 285 by schoenebeck, Thu Oct 14 21:31:26 2004 UTC revision 663 by schoenebeck, Sat Jun 18 21:37:03 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    
32    #if defined(__APPLE__)
33    # include <stdlib.h>
34    #else
35    # include <malloc.h>
36    #endif
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 65  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            ResetScaleTuning();
123      }      }
124    
125        /**
126         * Destructor
127         */
128      Engine::~Engine() {      Engine::~Engine() {
129          if (pDiskThread) {          if (pDiskThread) {
130                dmsg(1,("Stopping disk thread..."));
131              pDiskThread->StopThread();              pDiskThread->StopThread();
132              delete pDiskThread;              delete pDiskThread;
133                dmsg(1,("OK\n"));
134          }          }
         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];  
         }  
         delete[] pSynthesisEvents;  
         if (pEvents)     delete pEvents;  
         if (pCCEvents)   delete pCCEvents;  
135          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
136          if (pEventPool)  delete pEventPool;          if (pEventPool)  delete pEventPool;
137          if (pVoicePool)  delete pVoicePool;          if (pVoicePool) {
138          if (pActiveKeys) delete pActiveKeys;              pVoicePool->clear();
139          if (pSysexBuffer) delete pSysexBuffer;              delete pVoicePool;
140            }
141          if (pEventGenerator) delete pEventGenerator;          if (pEventGenerator) delete pEventGenerator;
142          if (pMainFilterParameters) delete[] pMainFilterParameters;          if (pMainFilterParameters) delete[] pMainFilterParameters;
143          if (pBasicFilterParameters) delete[] pBasicFilterParameters;          if (pBasicFilterParameters) delete[] pBasicFilterParameters;
144          if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);
145          if (pVoiceStealingQueue) delete pVoiceStealingQueue;          if (pVoiceStealingQueue) delete pVoiceStealingQueue;
146            if (pSysexBuffer) delete pSysexBuffer;
147            EngineFactory::Destroy(this);
148      }      }
149    
150      void Engine::Enable() {      void Engine::Enable() {
# Line 127  namespace LinuxSampler { namespace gig { Line 171  namespace LinuxSampler { namespace gig {
171       */       */
172      void Engine::Reset() {      void Engine::Reset() {
173          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();  
   
174          ResetInternal();          ResetInternal();
175            ResetScaleTuning();
         // signal audio thread to continue with rendering  
         //SuspensionRequested = false;  
176          Enable();          Enable();
177      }      }
178    
# Line 153  namespace LinuxSampler { namespace gig { Line 181  namespace LinuxSampler { namespace gig {
181       *  control and status variables. This method is not thread safe!       *  control and status variables. This method is not thread safe!
182       */       */
183      void Engine::ResetInternal() {      void Engine::ResetInternal() {
         Pitch               = 0;  
         SustainPedal        = false;  
184          ActiveVoiceCount    = 0;          ActiveVoiceCount    = 0;
185          ActiveVoiceCountMax = 0;          ActiveVoiceCountMax = 0;
         GlobalVolume        = 1.0;  
186    
187          // reset voice stealing parameters          // reset voice stealing parameters
         itLastStolenVoice = RTList<Voice>::Iterator();  
         iuiLastStolenKey  = RTList<uint>::Iterator();  
188          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
189            itLastStolenVoice          = RTList<Voice>::Iterator();
190          // reset to normal chromatic scale (means equal temper)          itLastStolenVoiceGlobally  = RTList<Voice>::Iterator();
191          memset(&ScaleTuning[0], 0x00, 12);          iuiLastStolenKey           = RTList<uint>::Iterator();
192            iuiLastStolenKeyGlobally   = RTList<uint>::Iterator();
193          // set all MIDI controller values to zero          pLastStolenChannel         = NULL;
         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    
195          // reset all voices          // reset all voices
196          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()) {
# Line 190  namespace LinuxSampler { namespace gig { Line 198  namespace LinuxSampler { namespace gig {
198          }          }
199          pVoicePool->clear();          pVoicePool->clear();
200    
         // free all active keys  
         pActiveKeys->clear();  
   
201          // reset disk thread          // reset disk thread
202          if (pDiskThread) pDiskThread->Reset();          if (pDiskThread) pDiskThread->Reset();
203    
# Line 201  namespace LinuxSampler { namespace gig { Line 206  namespace LinuxSampler { namespace gig {
206      }      }
207    
208      /**      /**
209       *  Load an instrument from a .gig file.       * Reset to normal, chromatic scale (means equal tempered).
      *  
      *  @param FileName   - file name of the Gigasampler instrument file  
      *  @param Instrument - index of the instrument in the .gig file  
      *  @throws LinuxSamplerException  on error  
      *  @returns          detailed description of the method call result  
      */  
     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;  
   
         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.  
210       */       */
211      void Engine::ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg) {      void Engine::ResetScaleTuning() {
212          dmsg(3,("gig::Engine: Received instrument update message.\n"));          memset(&ScaleTuning[0], 0x00, 12);
         DisableAndLock();  
         ResetInternal();  
         this->pInstrument = NULL;  
213      }      }
214    
215      /**      /**
216       * Will be called by the InstrumentResourceManager when the instrument       * Connect this engine instance with the given audio output device.
217       * update process was completed, so we can continue with playback.       * This method will be called when an Engine instance is created.
218         * All of the engine's data structures which are dependant to the used
219         * audio output device / driver will be (re)allocated and / or
220         * adjusted appropriately.
221         *
222         * @param pAudioOut - audio output device to connect to
223       */       */
     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();  
     }  
   
224      void Engine::Connect(AudioOutputDevice* pAudioOut) {      void Engine::Connect(AudioOutputDevice* pAudioOut) {
225          pAudioOutputDevice = pAudioOut;          pAudioOutputDevice = pAudioOut;
226    
# Line 307  namespace LinuxSampler { namespace gig { Line 235  namespace LinuxSampler { namespace gig {
235              throw LinuxSamplerException(msg);              throw LinuxSamplerException(msg);
236          }          }
237    
238          this->AudioDeviceChannelLeft  = 0;          this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle();
239          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();  
240    
241          // FIXME: audio drivers with varying fragment sizes might be a problem here          // FIXME: audio drivers with varying fragment sizes might be a problem here
242          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1;
243          if (MaxFadeOutPos < 0)          if (MaxFadeOutPos < 0)
244              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!");
245    
246          // (re)create disk thread          // (re)create disk thread
247          if (this->pDiskThread) {          if (this->pDiskThread) {
248                dmsg(1,("Stopping disk thread..."));
249              this->pDiskThread->StopThread();              this->pDiskThread->StopThread();
250              delete this->pDiskThread;              delete this->pDiskThread;
251                dmsg(1,("OK\n"));
252          }          }
253          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
254          if (!pDiskThread) {          if (!pDiskThread) {
255              dmsg(0,("gig::Engine  new diskthread = NULL\n"));              dmsg(0,("gig::Engine  new diskthread = NULL\n"));
256              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
# Line 341  namespace LinuxSampler { namespace gig { Line 267  namespace LinuxSampler { namespace gig {
267          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());
268    
269          // (re)allocate synthesis parameter matrix          // (re)allocate synthesis parameter matrix
270          if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];          if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);
271          pSynthesisParameters[0] = new float[Event::destination_count * pAudioOut->MaxSamplesPerCycle()];  
272            #if defined(__APPLE__)
273            pSynthesisParameters[0] = (float *) malloc(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle());
274            #else
275            pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()));
276            #endif
277          for (int dst = 1; dst < Event::destination_count; dst++)          for (int dst = 1; dst < Event::destination_count; dst++)
278              pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle();              pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle();
279    
# Line 364  namespace LinuxSampler { namespace gig { Line 295  namespace LinuxSampler { namespace gig {
295          }          }
296      }      }
297    
298      void Engine::DisconnectAudioOutputDevice() {      /**
299          if (pAudioOutputDevice) { // if clause to prevent disconnect loops       * Clear all engine global event lists.
300              AudioOutputDevice* olddevice = pAudioOutputDevice;       */
301              pAudioOutputDevice = NULL;      void Engine::ClearEventLists() {
302              olddevice->Disconnect(this);          pGlobalEvents->clear();
303              AudioDeviceChannelLeft  = -1;      }
304              AudioDeviceChannelRight = -1;  
305        /**
306         * Copy all events from the engine's global input queue buffer to the
307         * engine's internal event list. This will be done at the beginning of
308         * each audio cycle (that is each RenderAudio() call) to distinguish
309         * all global events which have to be processed in the current audio
310         * cycle. These events are usually just SysEx messages. Every
311         * EngineChannel has it's own input event queue buffer and event list
312         * to handle common events like NoteOn, NoteOff and ControlChange
313         * events.
314         *
315         * @param Samples - number of sample points to be processed in the
316         *                  current audio cycle
317         */
318        void Engine::ImportEvents(uint Samples) {
319            RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
320            Event* pEvent;
321            while (true) {
322                // get next event from input event queue
323                if (!(pEvent = eventQueueReader.pop())) break;
324                // if younger event reached, ignore that and all subsequent ones for now
325                if (pEvent->FragmentPos() >= Samples) {
326                    eventQueueReader--;
327                    dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));
328                    pEvent->ResetFragmentPos();
329                    break;
330                }
331                // copy event to internal event list
332                if (pGlobalEvents->poolIsEmpty()) {
333                    dmsg(1,("Event pool emtpy!\n"));
334                    break;
335                }
336                *pGlobalEvents->allocAppend() = *pEvent;
337          }          }
338            eventQueueReader.free(); // free all copied events from input queue
339      }      }
340    
341      /**      /**
# Line 387  namespace LinuxSampler { namespace gig { Line 351  namespace LinuxSampler { namespace gig {
351      int Engine::RenderAudio(uint Samples) {      int Engine::RenderAudio(uint Samples) {
352          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));
353    
354          // return if no instrument loaded or engine disabled          // return if engine disabled
355          if (EngineDisabled.Pop()) {          if (EngineDisabled.Pop()) {
356              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));
357              return 0;              return 0;
358          }          }
         if (!pInstrument) {  
             dmsg(5,("gig::Engine: no instrument loaded\n"));  
             return 0;  
         }  
359    
360            // update time of start and end of this audio fragment (as events' time stamps relate to this)
361            pEventGenerator->UpdateFragmentTime(Samples);
362    
363          // empty the event lists for the new fragment          // We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned
364          pEvents->clear();          // in each audio fragment. All subsequent request for spawning new
365          pCCEvents->clear();          // voices in the same audio fragment will be ignored.
366          for (uint i = 0; i < Event::destination_count; i++) {          VoiceSpawnsLeft = CONFIG_MAX_VOICES;
367              pSynthesisEvents[i]->clear();  
368          }          // get all events from the engine's global input event queue which belong to the current fragment
369            // (these are usually just SysEx messages)
370            ImportEvents(Samples);
371    
372            // process engine global events (these are currently only MIDI System Exclusive messages)
373          {          {
374              RTList<uint>::Iterator iuiKey = pActiveKeys->first();              RTList<Event>::Iterator itEvent = pGlobalEvents->first();
375              RTList<uint>::Iterator end    = pActiveKeys->end();              RTList<Event>::Iterator end     = pGlobalEvents->end();
376              for(; iuiKey != end; ++iuiKey) {              for (; itEvent != end; ++itEvent) {
377                  pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key                  switch (itEvent->Type) {
378                        case Event::type_sysex:
379                            dmsg(5,("Engine: Sysex received\n"));
380                            ProcessSysex(itEvent);
381                            break;
382                    }
383              }              }
384          }          }
385    
386          // read and copy events from input queue          // reset internal voice counter (just for statistic of active voices)
387          Event event = pEventGenerator->CreateEvent();          ActiveVoiceCountTemp = 0;
388          while (true) {  
389              if (!pEventQueue->pop(&event) || pEvents->poolIsEmpty()) break;          // handle events on all engine channels
390              *pEvents->allocAppend() = event;          for (int i = 0; i < engineChannels.size(); i++) {
391                if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
392                ProcessEvents(engineChannels[i], Samples);
393          }          }
394    
395            // render all 'normal', active voices on all engine channels
396            for (int i = 0; i < engineChannels.size(); i++) {
397                if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
398                RenderActiveVoices(engineChannels[i], Samples);
399            }
400    
401          // update time of start and end of this audio fragment (as events' time stamps relate to this)          // now that all ordinary voices on ALL engine channels are rendered, render new stolen voices
402          pEventGenerator->UpdateFragmentTime(Samples);          RenderStolenVoices(Samples);
403    
404            // handle cleanup on all engine channels for the next audio fragment
405            for (int i = 0; i < engineChannels.size(); i++) {
406                if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
407                PostProcess(engineChannels[i]);
408            }
409    
410    
411            // empty the engine's event list for the next audio fragment
412            ClearEventLists();
413    
414            // reset voice stealing for the next audio fragment
415            pVoiceStealingQueue->clear();
416    
417            // just some statistics about this engine instance
418            ActiveVoiceCount = ActiveVoiceCountTemp;
419            if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
420    
421            FrameTime += Samples;
422    
423            return 0;
424        }
425    
426        /**
427         * Dispatch and handle all events in this audio fragment for the given
428         * engine channel.
429         *
430         * @param pEngineChannel - engine channel on which events should be
431         *                         processed
432         * @param Samples        - amount of sample points to be processed in
433         *                         this audio fragment cycle
434         */
435        void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {
436            // get all events from the engine channels's input event queue which belong to the current fragment
437            // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)
438            pEngineChannel->ImportEvents(Samples);
439    
440          // process events          // process events
441          {          {
442              RTList<Event>::Iterator itEvent = pEvents->first();              RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first();
443              RTList<Event>::Iterator end     = pEvents->end();              RTList<Event>::Iterator end     = pEngineChannel->pEvents->end();
444              for (; itEvent != end; ++itEvent) {              for (; itEvent != end; ++itEvent) {
445                  switch (itEvent->Type) {                  switch (itEvent->Type) {
446                      case Event::type_note_on:                      case Event::type_note_on:
447                          dmsg(5,("Engine: Note on received\n"));                          dmsg(5,("Engine: Note on received\n"));
448                          ProcessNoteOn(itEvent);                          ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent);
449                          break;                          break;
450                      case Event::type_note_off:                      case Event::type_note_off:
451                          dmsg(5,("Engine: Note off received\n"));                          dmsg(5,("Engine: Note off received\n"));
452                          ProcessNoteOff(itEvent);                          ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent);
453                          break;                          break;
454                      case Event::type_control_change:                      case Event::type_control_change:
455                          dmsg(5,("Engine: MIDI CC received\n"));                          dmsg(5,("Engine: MIDI CC received\n"));
456                          ProcessControlChange(itEvent);                          ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent);
457                          break;                          break;
458                      case Event::type_pitchbend:                      case Event::type_pitchbend:
459                          dmsg(5,("Engine: Pitchbend received\n"));                          dmsg(5,("Engine: Pitchbend received\n"));
460                          ProcessPitchbend(itEvent);                          ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent);
                         break;  
                     case Event::type_sysex:  
                         dmsg(5,("Engine: Sysex received\n"));  
                         ProcessSysex(itEvent);  
461                          break;                          break;
462                  }                  }
463              }              }
464          }          }
465    
466            // reset voice stealing for the next engine channel (or next audio fragment)
467            itLastStolenVoice         = RTList<Voice>::Iterator();
468            itLastStolenVoiceGlobally = RTList<Voice>::Iterator();
469            iuiLastStolenKey          = RTList<uint>::Iterator();
470            iuiLastStolenKeyGlobally  = RTList<uint>::Iterator();
471            pLastStolenChannel        = NULL;
472        }
473    
474          int active_voices = 0;      /**
475         * Render all 'normal' voices (that is voices which were not stolen in
476          // render audio from all active voices       * this fragment) on the given engine channel.
477          {       *
478              RTList<uint>::Iterator iuiKey = pActiveKeys->first();       * @param pEngineChannel - engine channel on which audio should be
479              RTList<uint>::Iterator end    = pActiveKeys->end();       *                         rendered
480              while (iuiKey != end) { // iterate through all active keys       * @param Samples        - amount of sample points to be rendered in
481                  midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];       *                         this audio fragment cycle
482                  ++iuiKey;       */
483        void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {
484                  RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
485                  RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
486                  for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key          while (iuiKey != end) { // iterate through all active keys
487                      // now render current voice              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
488                      itVoice->Render(Samples);              ++iuiKey;
489                      if (itVoice->IsActive()) active_voices++; // still active  
490                      else { // voice reached end, is now inactive              RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
491                          FreeVoice(itVoice); // remove voice from the list of active voices              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
492                      }              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
493                  }                  // now render current voice
494              }                  itVoice->Render(Samples);
495          }                  if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active
496                    else { // voice reached end, is now inactive
497                        FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices
         // now render all postponed voices from voice stealing  
         {  
             RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();  
             RTList<Event>::Iterator end               = pVoiceStealingQueue->end();  
             for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {  
                 Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);  
                 if (itNewVoice) {  
                     for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) {  
                         itNewVoice->Render(Samples);  
                         if (itNewVoice->IsActive()) active_voices++; // still active  
                         else { // voice reached end, is now inactive  
                             FreeVoice(itNewVoice); // remove voice from the list of active voices  
                         }  
                     }  
498                  }                  }
                 else dmsg(1,("Ouch, voice stealing didn't work out!\n"));  
499              }              }
500          }          }
         // reset voice stealing for the new fragment  
         pVoiceStealingQueue->clear();  
         itLastStolenVoice = RTList<Voice>::Iterator();  
         iuiLastStolenKey  = RTList<uint>::Iterator();  
   
   
         // write that to the disk thread class so that it can print it  
         // on the console for debugging purposes  
         ActiveVoiceCount = active_voices;  
         if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;  
   
   
         return 0;  
501      }      }
502    
503      /**      /**
504       *  Will be called by the MIDIIn Thread to let the audio thread trigger a new       * Render all stolen voices (only voices which were stolen in this
505       *  voice for the given key.       * fragment) on the given engine channel. Stolen voices are rendered
506         * after all normal voices have been rendered; this is needed to render
507         * audio of those voices which were selected for voice stealing until
508         * the point were the stealing (that is the take over of the voice)
509         * actually happened.
510       *       *
511       *  @param Key      - MIDI key number of the triggered key       * @param pEngineChannel - engine channel on which audio should be
512       *  @param Velocity - MIDI velocity value of the triggered key       *                         rendered
513       */       * @param Samples        - amount of sample points to be rendered in
514      void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {       *                         this audio fragment cycle
515          Event event               = pEventGenerator->CreateEvent();       */
516          event.Type                = Event::type_note_on;      void Engine::RenderStolenVoices(uint Samples) {
517          event.Param.Note.Key      = Key;          RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
518          event.Param.Note.Velocity = Velocity;          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
519          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
520          else dmsg(1,("Engine: Input event queue full!"));              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
521      }              Pool<Voice>::Iterator itNewVoice =
522                    LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);
523                if (itNewVoice) {
524                    itNewVoice->Render(Samples);
525                    if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active
526                    else { // voice reached end, is now inactive
527                        FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices
528                    }
529                }
530                else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
531    
532      /**              // we need to clear the key's event list explicitly here in case key was never active
533       *  Will be called by the MIDIIn Thread to signal the audio thread to release              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key];
534       *  voice(s) on the given key.              pKey->VoiceTheftsQueued--;
535       *              if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear();
536       *  @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!"));  
537      }      }
538    
539      /**      /**
540       *  Will be called by the MIDIIn Thread to signal the audio thread to change       * Free all keys which have turned inactive in this audio fragment, from
541       *  the pitch value for all voices.       * the list of active keys and clear all event lists on that engine
542         * channel.
543       *       *
544       *  @param Pitch - MIDI pitch value (-8192 ... +8191)       * @param pEngineChannel - engine channel to cleanup
545       */       */
546      void Engine::SendPitchbend(int Pitch) {      void Engine::PostProcess(EngineChannel* pEngineChannel) {
547          Event event             = pEventGenerator->CreateEvent();          // free all keys which have no active voices left
548          event.Type              = Event::type_pitchbend;          {
549          event.Param.Pitch.Pitch = Pitch;              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
550          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);              RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
551          else dmsg(1,("Engine: Input event queue full!"));              while (iuiKey != end) { // iterate through all active keys
552      }                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
553                    ++iuiKey;
554                    if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey);
555                    #if CONFIG_DEVMODE
556                    else { // just a sanity check for debugging
557                        RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
558                        RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
559                        for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
560                            if (itVoice->itKillEvent) {
561                                dmsg(1,("gig::Engine: ERROR, killed voice survived !!!\n"));
562                            }
563                        }
564                    }
565                    #endif // CONFIG_DEVMODE
566                }
567            }
568    
569      /**          // empty the engine channel's own event lists
570       *  Will be called by the MIDIIn Thread to signal the audio thread that a          pEngineChannel->ClearEventLists();
      *  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!"));  
571      }      }
572    
573      /**      /**
# Line 585  namespace LinuxSampler { namespace gig { Line 581  namespace LinuxSampler { namespace gig {
581          Event event             = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
582          event.Type              = Event::type_sysex;          event.Type              = Event::type_sysex;
583          event.Param.Sysex.Size  = Size;          event.Param.Sysex.Size  = Size;
584            event.pEngineChannel    = NULL; // as Engine global event
585          if (pEventQueue->write_space() > 0) {          if (pEventQueue->write_space() > 0) {
586              if (pSysexBuffer->write_space() >= Size) {              if (pSysexBuffer->write_space() >= Size) {
587                  // copy sysex data to input buffer                  // copy sysex data to input buffer
# Line 600  namespace LinuxSampler { namespace gig { Line 597  namespace LinuxSampler { namespace gig {
597                  // finally place sysex event into input event queue                  // finally place sysex event into input event queue
598                  pEventQueue->push(&event);                  pEventQueue->push(&event);
599              }              }
600              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));
601          }          }
602          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
603      }      }
# Line 608  namespace LinuxSampler { namespace gig { Line 605  namespace LinuxSampler { namespace gig {
605      /**      /**
606       *  Assigns and triggers a new voice for the respective MIDI key.       *  Assigns and triggers a new voice for the respective MIDI key.
607       *       *
608         *  @param pEngineChannel - engine channel on which this event occured on
609       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
610       */       */
611      void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) {      void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
612          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];  
613            const int key = itNoteOnEvent->Param.Note.Key;
614    
615            // Change key dimension value if key is in keyswitching area
616            {
617                const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument;
618                if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)
619                    pEngineChannel->CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) /
620                        (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);
621            }
622    
623            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];
624    
625          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
626            pKey->Velocity   = itNoteOnEvent->Param.Note.Velocity;
627            pKey->NoteOnTime = FrameTime + itNoteOnEvent->FragmentPos(); // will be used to calculate note length
628    
629          // cancel release process of voices on this key if needed          // cancel release process of voices on this key if needed
630          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
631              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();
632              if (itCancelReleaseEvent) {              if (itCancelReleaseEvent) {
633                  *itCancelReleaseEvent = *itNoteOnEvent;                  // copy event                  *itCancelReleaseEvent = *itNoteOnEvent;                  // copy event
# Line 628  namespace LinuxSampler { namespace gig { Line 639  namespace LinuxSampler { namespace gig {
639          // move note on event to the key's own event list          // move note on event to the key's own event list
640          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
641    
642          // allocate and trigger a new voice for the key          // allocate and trigger new voice(s) for the key
643          LaunchVoice(itNoteOnEventOnKeyList);          {
644                // first, get total amount of required voices (dependant on amount of layers)
645                ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key);
646                if (pRegion) {
647                    int voicesRequired = pRegion->Layers;
648                    // now launch the required amount of voices
649                    for (int i = 0; i < voicesRequired; i++)
650                        LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true);
651                }
652            }
653    
654            // if neither a voice was spawned or postponed then remove note on event from key again
655            if (!pKey->Active && !pKey->VoiceTheftsQueued)
656                pKey->pEvents->free(itNoteOnEventOnKeyList);
657    
658            pKey->RoundRobinIndex++;
659      }      }
660    
661      /**      /**
# Line 638  namespace LinuxSampler { namespace gig { Line 664  namespace LinuxSampler { namespace gig {
664       *  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.
665       *  due to completion of sample playback).       *  due to completion of sample playback).
666       *       *
667         *  @param pEngineChannel - engine channel on which this event occured on
668       *  @param itNoteOffEvent - key, velocity and time stamp of the event       *  @param itNoteOffEvent - key, velocity and time stamp of the event
669       */       */
670      void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) {      void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) {
671          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];
672    
673          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
674    
675          // release voices on this key if needed          // release voices on this key if needed
676          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
677              itNoteOffEvent->Type = Event::type_release; // transform event type              itNoteOffEvent->Type = Event::type_release; // transform event type
         }  
678    
679          // move event to the key's own event list              // move event to the key's own event list
680          RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);              RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);
681    
682          // spawn release triggered voice(s) if needed              // spawn release triggered voice(s) if needed
683          if (pKey->ReleaseTrigger) {              if (pKey->ReleaseTrigger) {
684              LaunchVoice(itNoteOffEventOnKeyList, 0, true);                  // first, get total amount of required voices (dependant on amount of layers)
685              pKey->ReleaseTrigger = false;                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
686                    if (pRegion) {
687                        int voicesRequired = pRegion->Layers;
688    
689                        // MIDI note-on velocity is used instead of note-off velocity
690                        itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity;
691    
692                        // now launch the required amount of voices
693                        for (int i = 0; i < voicesRequired; i++)
694                            LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
695                    }
696                    pKey->ReleaseTrigger = false;
697                }
698    
699                // if neither a voice was spawned or postponed then remove note off event from key again
700                if (!pKey->Active && !pKey->VoiceTheftsQueued)
701                    pKey->pEvents->free(itNoteOffEventOnKeyList);
702          }          }
703      }      }
704    
# Line 664  namespace LinuxSampler { namespace gig { Line 706  namespace LinuxSampler { namespace gig {
706       *  Moves pitchbend event from the general (input) event list to the pitch       *  Moves pitchbend event from the general (input) event list to the pitch
707       *  event list.       *  event list.
708       *       *
709         *  @param pEngineChannel - engine channel on which this event occured on
710       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event
711       */       */
712      void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) {      void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) {
713          this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value          pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value
714          itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]);          itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]);
715      }      }
716    
717      /**      /**
# Line 676  namespace LinuxSampler { namespace gig { Line 719  namespace LinuxSampler { namespace gig {
719       *  called by the ProcessNoteOn() method and by the voices itself       *  called by the ProcessNoteOn() method and by the voices itself
720       *  (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).
721       *       *
722         *  @param pEngineChannel      - engine channel on which this event occured on
723       *  @param itNoteOnEvent       - key, velocity and time stamp of the event       *  @param itNoteOnEvent       - key, velocity and time stamp of the event
724       *  @param iLayer              - layer index for the new voice (optional - only       *  @param iLayer              - layer index for the new voice (optional - only
725       *                               in case of layered sounds of course)       *                               in case of layered sounds of course)
# Line 685  namespace LinuxSampler { namespace gig { Line 729  namespace LinuxSampler { namespace gig {
729       *                               when there is no free voice       *                               when there is no free voice
730       *                               (optional, default = true)       *                               (optional, default = true)
731       *  @returns pointer to new voice or NULL if there was no free voice or       *  @returns pointer to new voice or NULL if there was no free voice or
732       *           if an error occured while trying to trigger the new voice       *           if the voice wasn't triggered (for example when no region is
733         *           defined for the given key).
734       */       */
735      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) {
736          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
737    
738          // allocate a new voice for the key          // allocate a new voice for the key
739          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
740          if (itNewVoice) {          if (itNewVoice) {
741              // launch the new voice              // launch the new voice
742              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice) < 0) {              if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pEngineChannel->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {
743                  dmsg(1,("Triggering new voice failed!\n"));                  dmsg(4,("Voice not triggered\n"));
744                  pKey->pActiveVoices->free(itNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
745              }              }
746              else { // on success              else { // on success
747                    --VoiceSpawnsLeft;
748                  uint** ppKeyGroup = NULL;                  uint** ppKeyGroup = NULL;
749                  if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group                  if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group
750                      ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup];                      ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];
751                      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
752                          midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup];                          midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup];
753                          // kill all voices on the (other) key                          // kill all voices on the (other) key
754                          RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();                          RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
755                          RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();                          RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
756                          for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {                          for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
757                              if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent);                              if (itVoiceToBeKilled->Type != Voice::type_release_trigger) {
758                                    itVoiceToBeKilled->Kill(itNoteOnEvent);
759                                    --VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict
760                                }
761                          }                          }
762                      }                      }
763                  }                  }
764                  if (!pKey->Active) { // mark as active key                  if (!pKey->Active) { // mark as active key
765                      pKey->Active = true;                      pKey->Active = true;
766                      pKey->itSelf = pActiveKeys->allocAppend();                      pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend();
767                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;
768                  }                  }
769                  if (itNewVoice->KeyGroup) {                  if (itNewVoice->KeyGroup) {
# Line 725  namespace LinuxSampler { namespace gig { Line 774  namespace LinuxSampler { namespace gig {
774              }              }
775          }          }
776          else if (VoiceStealing) {          else if (VoiceStealing) {
777              // first, get total amount of required voices (dependant on amount of layers)              // try to steal one voice
778              ::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);              int result = StealVoice(pEngineChannel, itNoteOnEvent);
779              if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed              if (!result) { // voice stolen successfully
780              int voicesRequired = pRegion->Layers;                  // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
781                    RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
782              // now steal the (remaining) amount of voices                  if (itStealEvent) {
783              for (int i = iLayer; i < voicesRequired; i++)                      *itStealEvent = *itNoteOnEvent; // copy event
784                  StealVoice(itNoteOnEvent);                      itStealEvent->Param.Note.Layer = iLayer;
785                        itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
786              // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died                      pKey->VoiceTheftsQueued++;
787              RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();                  }
788              if (itStealEvent) {                  else dmsg(1,("Voice stealing queue full!\n"));
                 *itStealEvent = *itNoteOnEvent; // copy event  
                 itStealEvent->Param.Note.Layer = iLayer;  
                 itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;  
789              }              }
             else dmsg(1,("Voice stealing queue full!\n"));  
790          }          }
791    
792          return Pool<Voice>::Iterator(); // no free voice or error          return Pool<Voice>::Iterator(); // no free voice or error
# Line 753  namespace LinuxSampler { namespace gig { Line 798  namespace LinuxSampler { namespace gig {
798       *  voice stealing and postpone the note-on event until the selected       *  voice stealing and postpone the note-on event until the selected
799       *  voice actually died.       *  voice actually died.
800       *       *
801         *  @param pEngineChannel - engine channel on which this event occured on
802       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
803         *  @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing
804       */       */
805      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) {      int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
806            if (VoiceSpawnsLeft <= 0) {
807                dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n"));
808                return -1;
809            }
810          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
811    
812              RTList<uint>::Iterator  iuiOldestKey;              RTList<Voice>::Iterator itSelectedVoice;
             RTList<Voice>::Iterator itOldestVoice;  
813    
814              // Select one voice for voice stealing              // Select one voice for voice stealing
815              switch (VOICE_STEAL_ALGORITHM) {              switch (CONFIG_VOICE_STEAL_ALGO) {
816    
817                  // try to pick the oldest voice on the key where the new                  // try to pick the oldest voice on the key where the new
818                  // voice should be spawned, if there is no voice on that                  // voice should be spawned, if there is no voice on that
819                  // key, or no voice left to kill there, then procceed with                  // key, or no voice left to kill, then procceed with
820                  // 'oldestkey' algorithm                  // 'oldestkey' algorithm
821                  case voice_steal_algo_keymask: {                  case voice_steal_algo_oldestvoiceonkey: {
822                      midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
823                      if (itLastStolenVoice) {                      itSelectedVoice = pSelectedKey->pActiveVoices->first();
824                          itOldestVoice = itLastStolenVoice;                      // proceed iterating if voice was created in this fragment cycle
825                          ++itOldestVoice;                      while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
826                      }                      // if we haven't found a voice then proceed with algorithm 'oldestkey'
827                      else { // no voice stolen in this audio fragment cycle yet                      if (itSelectedVoice && itSelectedVoice->IsStealable()) break;
                         itOldestVoice = pOldestKey->pActiveVoices->first();  
                     }  
                     if (itOldestVoice) {  
                         iuiOldestKey = pOldestKey->itSelf;  
                         break; // selection succeeded  
                     }  
828                  } // no break - intentional !                  } // no break - intentional !
829    
830                  // try to pick the oldest voice on the oldest active key                  // try to pick the oldest voice on the oldest active key
831                  // (caution: must stay after 'keymask' algorithm !)                  // from the same engine channel
832                    // (caution: must stay after 'oldestvoiceonkey' algorithm !)
833                  case voice_steal_algo_oldestkey: {                  case voice_steal_algo_oldestkey: {
834                      if (itLastStolenVoice) {                      // if we already stole in this fragment, try to proceed on same key
835                          midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey];                      if (this->itLastStolenVoice) {
836                          itOldestVoice = itLastStolenVoice;                          itSelectedVoice = this->itLastStolenVoice;
837                          ++itOldestVoice;                          do {
838                          if (!itOldestVoice) {                              ++itSelectedVoice;
839                              iuiOldestKey = iuiLastStolenKey;                          } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
840                              ++iuiOldestKey;                          // found a "stealable" voice ?
841                              if (iuiOldestKey) {                          if (itSelectedVoice && itSelectedVoice->IsStealable()) {
842                                  midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];                              // remember which voice we stole, so we can simply proceed on next voice stealing
843                                  itOldestVoice = pOldestKey->pActiveVoices->first();                              this->itLastStolenVoice = itSelectedVoice;
844                              }                              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;  
                             }  
845                          }                          }
                         else iuiOldestKey = iuiLastStolenKey;  
846                      }                      }
847                      else { // no voice stolen in this audio fragment cycle yet                      // get (next) oldest key
848                          iuiOldestKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first();
849                          midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];                      while (iuiSelectedKey) {
850                          itOldestVoice = pOldestKey->pActiveVoices->first();                          midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
851                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
852                            // proceed iterating if voice was created in this fragment cycle
853                            while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
854                            // found a "stealable" voice ?
855                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
856                                // remember which voice on which key we stole, so we can simply proceed on next voice stealing
857                                this->iuiLastStolenKey  = iuiSelectedKey;
858                                this->itLastStolenVoice = itSelectedVoice;
859                                break; // selection succeeded
860                            }
861                            ++iuiSelectedKey; // get next oldest key
862                      }                      }
863                      break;                      break;
864                  }                  }
# Line 816  namespace LinuxSampler { namespace gig { Line 867  namespace LinuxSampler { namespace gig {
867                  case voice_steal_algo_none:                  case voice_steal_algo_none:
868                  default: {                  default: {
869                      dmsg(1,("No free voice (voice stealing disabled)!\n"));                      dmsg(1,("No free voice (voice stealing disabled)!\n"));
870                      return;                      return -1;
871                    }
872                }
873    
874                // if we couldn't steal a voice from the same engine channel then
875                // steal oldest voice on the oldest key from any other engine channel
876                // (the smaller engine channel number, the higher priority)
877                if (!itSelectedVoice || !itSelectedVoice->IsStealable()) {
878                    EngineChannel* pSelectedChannel;
879                    int            iChannelIndex;
880                    // select engine channel
881                    if (pLastStolenChannel) {
882                        pSelectedChannel = pLastStolenChannel;
883                        iChannelIndex    = pSelectedChannel->iEngineIndexSelf;
884                    } else { // pick the engine channel followed by this engine channel
885                        iChannelIndex    = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size();
886                        pSelectedChannel = engineChannels[iChannelIndex];
887                    }
888    
889                    // if we already stole in this fragment, try to proceed on same key
890                    if (this->itLastStolenVoiceGlobally) {
891                        itSelectedVoice = this->itLastStolenVoiceGlobally;
892                        do {
893                            ++itSelectedVoice;
894                        } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
895                    }
896    
897                    #if CONFIG_DEVMODE
898                    EngineChannel* pBegin = pSelectedChannel; // to detect endless loop
899                    #endif // CONFIG_DEVMODE
900    
901                    // did we find a 'stealable' voice?
902                    if (itSelectedVoice && itSelectedVoice->IsStealable()) {
903                        // remember which voice we stole, so we can simply proceed on next voice stealing
904                        this->itLastStolenVoiceGlobally = itSelectedVoice;
905                    } else while (true) { // iterate through engine channels
906                        // get (next) oldest key
907                        RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKeyGlobally) ? ++this->iuiLastStolenKeyGlobally : pSelectedChannel->pActiveKeys->first();
908                        this->iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); // to prevent endless loop (see line above)
909                        while (iuiSelectedKey) {
910                            midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];
911                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
912                            // proceed iterating if voice was created in this fragment cycle
913                            while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
914                            // found a "stealable" voice ?
915                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
916                                // remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing
917                                this->iuiLastStolenKeyGlobally  = iuiSelectedKey;
918                                this->itLastStolenVoiceGlobally = itSelectedVoice;
919                                this->pLastStolenChannel        = pSelectedChannel;
920                                break; // selection succeeded
921                            }
922                            ++iuiSelectedKey; // get next key on current engine channel
923                        }
924                        // get next engine channel
925                        iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();
926                        pSelectedChannel = engineChannels[iChannelIndex];
927    
928                        #if CONFIG_DEVMODE
929                        if (pSelectedChannel == pBegin) {
930                            dmsg(1,("FATAL ERROR: voice stealing endless loop!\n"));
931                            dmsg(1,("VoiceSpawnsLeft=%d.\n", VoiceSpawnsLeft));
932                            dmsg(1,("Exiting.\n"));
933                            exit(-1);
934                        }
935                        #endif // CONFIG_DEVMODE
936                  }                  }
937              }              }
938    
939                #if CONFIG_DEVMODE
940                if (!itSelectedVoice->IsActive()) {
941                    dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
942                    return -1;
943                }
944                #endif // CONFIG_DEVMODE
945    
946              // now kill the selected voice              // now kill the selected voice
947              itOldestVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
948              // remember which voice on which key we stole, so we can simply proceed for the next voice stealing  
949              this->itLastStolenVoice = itOldestVoice;              --VoiceSpawnsLeft;
950              this->iuiLastStolenKey = iuiOldestKey;  
951                return 0; // success
952            }
953            else {
954                dmsg(1,("Event pool emtpy!\n"));
955                return -1;
956          }          }
         else dmsg(1,("Event pool emtpy!\n"));  
957      }      }
958    
959      /**      /**
# Line 835  namespace LinuxSampler { namespace gig { Line 962  namespace LinuxSampler { namespace gig {
962       *  it finished to playback its sample, finished its release stage or       *  it finished to playback its sample, finished its release stage or
963       *  just was killed.       *  just was killed.
964       *       *
965         *  @param pEngineChannel - engine channel on which this event occured on
966       *  @param itVoice - points to the voice to be freed       *  @param itVoice - points to the voice to be freed
967       */       */
968      void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) {      void Engine::FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice) {
969          if (itVoice) {          if (itVoice) {
970              midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey];
971    
972              uint keygroup = itVoice->KeyGroup;              uint keygroup = itVoice->KeyGroup;
973    
974              // free the voice object              // free the voice object
975              pVoicePool->free(itVoice);              pVoicePool->free(itVoice);
976    
977              // check if there are no voices left on the MIDI key and update the key info if so              // if no other voices left and member of a key group, remove from key group
978              if (pKey->pActiveVoices->isEmpty()) {              if (pKey->pActiveVoices->isEmpty() && keygroup) {
979                  if (keygroup) { // if voice / key belongs to a key group                  uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup];
980                      uint** ppKeyGroup = &ActiveKeyGroups[keygroup];                  if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group
                     if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group  
                 }  
                 pKey->Active = false;  
                 pActiveKeys->free(pKey->itSelf); // remove key from list of active keys  
                 pKey->itSelf = RTList<uint>::Iterator();  
                 pKey->ReleaseTrigger = false;  
                 pKey->pEvents->clear();  
                 dmsg(3,("Key has no more voices now\n"));  
981              }              }
982          }          }
983          else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush;          else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush;
984      }      }
985    
986      /**      /**
987         *  Called when there's no more voice left on a key, this call will
988         *  update the key info respectively.
989         *
990         *  @param pEngineChannel - engine channel on which this event occured on
991         *  @param pKey - key which is now inactive
992         */
993        void Engine::FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey) {
994            if (pKey->pActiveVoices->isEmpty()) {
995                pKey->Active = false;
996                pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys
997                pKey->itSelf = RTList<uint>::Iterator();
998                pKey->ReleaseTrigger = false;
999                pKey->pEvents->clear();
1000                dmsg(3,("Key has no more voices now\n"));
1001            }
1002            else dmsg(1,("gig::Engine: Oops, tried to free a key which contains voices.\n"));
1003        }
1004    
1005        /**
1006       *  Reacts on supported control change commands (e.g. pitch bend wheel,       *  Reacts on supported control change commands (e.g. pitch bend wheel,
1007       *  modulation wheel, aftertouch).       *  modulation wheel, aftertouch).
1008       *       *
1009         *  @param pEngineChannel - engine channel on which this event occured on
1010       *  @param itControlChangeEvent - controller, value and time stamp of the event       *  @param itControlChangeEvent - controller, value and time stamp of the event
1011       */       */
1012      void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) {      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {
1013          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));
1014    
1015          switch (itControlChangeEvent->Param.CC.Controller) {          // update controller value in the engine channel's controller table
1016              case 64: {          pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
1017                  if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) {  
1018            // move event from the unsorted event list to the control change event list
1019            Pool<Event>::Iterator itControlChangeEventOnCCList = itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents);
1020    
1021            switch (itControlChangeEventOnCCList->Param.CC.Controller) {
1022                case 7: { // volume
1023                    //TODO: not sample accurate yet
1024                    pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f;
1025                    pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag
1026                    break;
1027                }
1028                case 10: { // panpot
1029                    //TODO: not sample accurate yet
1030                    const int pan = (int) itControlChangeEventOnCCList->Param.CC.Value - 64;
1031                    pEngineChannel->GlobalPanLeft  = 1.0f - float(RTMath::Max(pan, 0)) /  63.0f;
1032                    pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f;
1033                    break;
1034                }
1035                case 64: { // sustain
1036                    if (itControlChangeEventOnCCList->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {
1037                      dmsg(4,("PEDAL DOWN\n"));                      dmsg(4,("PEDAL DOWN\n"));
1038                      SustainPedal = true;                      pEngineChannel->SustainPedal = true;
1039    
1040                      // cancel release process of voices if necessary                      // cancel release process of voices if necessary
1041                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1042                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
1043                          itControlChangeEvent->Type = Event::type_cancel_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1044                          while (iuiKey) {                          if (!pKey->KeyPressed) {
1045                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1046                              ++iuiKey;                              if (itNewEvent) {
1047                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
1048                                  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"));  
1049                              }                              }
1050                                else dmsg(1,("Event pool emtpy!\n"));
1051                          }                          }
1052                      }                      }
1053                  }                  }
1054                  if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) {                  if (itControlChangeEventOnCCList->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {
1055                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("PEDAL UP\n"));
1056                      SustainPedal = false;                      pEngineChannel->SustainPedal = false;
1057    
1058                      // release voices if their respective key is not pressed                      // release voices if their respective key is not pressed
1059                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1060                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
1061                          itControlChangeEvent->Type = Event::type_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1062                          while (iuiKey) {                          if (!pKey->KeyPressed) {
1063                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1064                              ++iuiKey;                              if (itNewEvent) {
1065                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list
1066                                  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"));  
1067                              }                              }
1068                                else dmsg(1,("Event pool emtpy!\n"));
1069                          }                          }
1070                      }                      }
1071                  }                  }
1072                  break;                  break;
1073              }              }
         }  
1074    
         // update controller value in the engine's controller table  
         ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;  
1075    
1076          // move event from the unsorted event list to the control change event list              // Channel Mode Messages
1077          itControlChangeEvent.moveToEndOf(pCCEvents);  
1078                case 120: { // all sound off
1079                    KillAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1080                    break;
1081                }
1082                case 121: { // reset all controllers
1083                    pEngineChannel->ResetControllers();
1084                    break;
1085                }
1086                case 123: { // all notes off
1087                    ReleaseAllVoices(pEngineChannel, itControlChangeEventOnCCList);
1088                    break;
1089                }
1090            }
1091      }      }
1092    
1093      /**      /**
# Line 938  namespace LinuxSampler { namespace gig { Line 1105  namespace LinuxSampler { namespace gig {
1105    
1106          switch (id) {          switch (id) {
1107              case 0x41: { // Roland              case 0x41: { // Roland
1108                    dmsg(3,("Roland Sysex\n"));
1109                  uint8_t device_id, model_id, cmd_id;                  uint8_t device_id, model_id, cmd_id;
1110                  if (!reader.pop(&device_id)) goto free_sysex_data;                  if (!reader.pop(&device_id)) goto free_sysex_data;
1111                  if (!reader.pop(&model_id))  goto free_sysex_data;                  if (!reader.pop(&model_id))  goto free_sysex_data;
# Line 950  namespace LinuxSampler { namespace gig { Line 1118  namespace LinuxSampler { namespace gig {
1118                  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
1119                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1120                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1121                        dmsg(3,("\tSystem Parameter\n"));
1122                  }                  }
1123                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1124                        dmsg(3,("\tCommon Parameter\n"));
1125                  }                  }
1126                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)
1127                      switch (addr[3]) {                      dmsg(3,("\tPart Parameter\n"));
1128                        switch (addr[2]) {
1129                          case 0x40: { // scale tuning                          case 0x40: { // scale tuning
1130                                dmsg(3,("\t\tScale Tuning\n"));
1131                              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
1132                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;
1133                              uint8_t checksum;                              uint8_t checksum;
1134                              if (!reader.pop(&checksum))                      goto free_sysex_data;                              if (!reader.pop(&checksum)) goto free_sysex_data;
1135                              if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data;                              #if CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1136                                if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data;
1137                                #endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1138                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;
1139                              AdjustScale((int8_t*) scale_tunes);                              AdjustScale((int8_t*) scale_tunes);
1140                                dmsg(3,("\t\t\tNew scale applied.\n"));
1141                              break;                              break;
1142                          }                          }
1143                      }                      }
# Line 1007  namespace LinuxSampler { namespace gig { Line 1182  namespace LinuxSampler { namespace gig {
1182      }      }
1183    
1184      /**      /**
1185         * Releases all voices on an engine channel. All voices will go into
1186         * the release stage and thus it might take some time (e.g. dependant to
1187         * their envelope release time) until they actually die.
1188         *
1189         * @param pEngineChannel - engine channel on which all voices should be released
1190         * @param itReleaseEvent - event which caused this releasing of all voices
1191         */
1192        void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) {
1193            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1194            while (iuiKey) {
1195                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1196                ++iuiKey;
1197                // append a 'release' event to the key's own event list
1198                RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1199                if (itNewEvent) {
1200                    *itNewEvent = *itReleaseEvent; // copy original event (to the key's event list)
1201                    itNewEvent->Type = Event::type_release; // transform event type
1202                }
1203                else dmsg(1,("Event pool emtpy!\n"));
1204            }
1205        }
1206    
1207        /**
1208         * Kills all voices on an engine channel as soon as possible. Voices
1209         * won't get into release state, their volume level will be ramped down
1210         * as fast as possible.
1211         *
1212         * @param pEngineChannel - engine channel on which all voices should be killed
1213         * @param itKillEvent    - event which caused this killing of all voices
1214         */
1215        void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) {
1216            RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1217            RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
1218            while (iuiKey != end) { // iterate through all active keys
1219                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1220                ++iuiKey;
1221                RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
1222                RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
1223                for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
1224                    itVoice->Kill(itKillEvent);
1225                    --VoiceSpawnsLeft; //FIXME: just a temporary workaround, we should check the cause in StealVoice() instead
1226                }
1227            }
1228        }
1229    
1230        /**
1231       * Initialize the parameter sequence for the modulation destination given by       * Initialize the parameter sequence for the modulation destination given by
1232       * by 'dst' with the constant value given by val.       * by 'dst' with the constant value given by val.
1233       */       */
# Line 1021  namespace LinuxSampler { namespace gig { Line 1242  namespace LinuxSampler { namespace gig {
1242          }          }
1243      }      }
1244    
     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));  
         }  
     }  
   
1245      uint Engine::VoiceCount() {      uint Engine::VoiceCount() {
1246          return ActiveVoiceCount;          return ActiveVoiceCount;
1247      }      }
# Line 1090  namespace LinuxSampler { namespace gig { Line 1271  namespace LinuxSampler { namespace gig {
1271      }      }
1272    
1273      String Engine::EngineName() {      String Engine::EngineName() {
1274          return "GigEngine";          return LS_GIG_ENGINE_NAME;
     }  
   
     String Engine::InstrumentFileName() {  
         return InstrumentFile;  
     }  
   
     int Engine::InstrumentIndex() {  
         return InstrumentIdx;  
     }  
   
     int Engine::InstrumentStatus() {  
         return InstrumentStat;  
1275      }      }
1276    
1277      String Engine::Description() {      String Engine::Description() {
# Line 1110  namespace LinuxSampler { namespace gig { Line 1279  namespace LinuxSampler { namespace gig {
1279      }      }
1280    
1281      String Engine::Version() {      String Engine::Version() {
1282          String s = "$Revision: 1.16 $";          String s = "$Revision: 1.44 $";
1283          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
1284      }      }
1285    
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