/[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 865 by persson, Sun May 14 07:15:52 2006 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 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  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
33    
34      InstrumentResourceManager Engine::Instruments;      InstrumentResourceManager Engine::instruments;
35    
36        std::map<AudioOutputDevice*,Engine*> Engine::engines;
37    
38        /**
39         * Get a gig::Engine object for the given gig::EngineChannel and the
40         * given AudioOutputDevice. All engine channels which are connected to
41         * the same audio output device will use the same engine instance. This
42         * method will be called by a gig::EngineChannel whenever it's
43         * connecting to a audio output device.
44         *
45         * @param pChannel - engine channel which acquires an engine object
46         * @param pDevice  - the audio output device \a pChannel is connected to
47         */
48        Engine* Engine::AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) {
49            Engine* pEngine = NULL;
50            // check if there's already an engine for the given audio output device
51            if (engines.count(pDevice)) {
52                dmsg(4,("Using existing gig::Engine.\n"));
53                pEngine = engines[pDevice];
54            } else { // create a new engine (and disk thread) instance for the given audio output device
55                dmsg(4,("Creating new gig::Engine.\n"));
56                pEngine = (Engine*) EngineFactory::Create("gig");
57                pEngine->Connect(pDevice);
58                engines[pDevice] = pEngine;
59            }
60            // register engine channel to the engine instance
61            pEngine->engineChannels.add(pChannel);
62            // remember index in the ArrayList
63            pChannel->iEngineIndexSelf = pEngine->engineChannels.size() - 1;
64            dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size()));
65            return pEngine;
66        }
67    
68        /**
69         * Once an engine channel is disconnected from an audio output device,
70         * it wil immediately call this method to unregister itself from the
71         * engine instance and if that engine instance is not used by any other
72         * engine channel anymore, then that engine instance will be destroyed.
73         *
74         * @param pChannel - engine channel which wants to disconnect from it's
75         *                   engine instance
76         * @param pDevice  - audio output device \a pChannel was connected to
77         */
78        void Engine::FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) {
79            dmsg(4,("Disconnecting EngineChannel from gig::Engine.\n"));
80            Engine* pEngine = engines[pDevice];
81            // unregister EngineChannel from the Engine instance
82            pEngine->engineChannels.remove(pChannel);
83            // if the used Engine instance is not used anymore, then destroy it
84            if (pEngine->engineChannels.empty()) {
85                pDevice->Disconnect(pEngine);
86                engines.erase(pDevice);
87                delete pEngine;
88                dmsg(4,("Destroying gig::Engine.\n"));
89            }
90            else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size()));
91        }
92    
93        /**
94         * Constructor
95         */
96      Engine::Engine() {      Engine::Engine() {
         pRIFF              = NULL;  
         pGig               = NULL;  
         pInstrument        = NULL;  
97          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
98          pDiskThread        = NULL;          pDiskThread        = NULL;
99          pEventGenerator    = NULL;          pEventGenerator    = NULL;
100          pSysexBuffer       = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0);          pSysexBuffer       = new RingBuffer<uint8_t>(CONFIG_SYSEX_BUFFER_SIZE, 0);
101          pEventQueue        = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue        = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);
102          pEventPool         = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);
103          pVoicePool         = new Pool<Voice>(MAX_AUDIO_VOICES);          pVoicePool         = new Pool<Voice>(CONFIG_MAX_VOICES);
         pActiveKeys        = new Pool<uint>(128);  
104          pVoiceStealingQueue = new RTList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
105          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);  
         }  
106          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()) {
107              iterVoice->SetEngine(this);              iterVoice->SetEngine(this);
108          }          }
109          pVoicePool->clear();          pVoicePool->clear();
110    
         pSynthesisParameters[0] = NULL; // we allocate when an audio device is connected  
         pBasicFilterParameters  = NULL;  
         pMainFilterParameters   = NULL;  
   
         InstrumentIdx = -1;  
         InstrumentStat = -1;  
   
         AudioDeviceChannelLeft  = -1;  
         AudioDeviceChannelRight = -1;  
   
111          ResetInternal();          ResetInternal();
112            ResetScaleTuning();
113      }      }
114    
115        /**
116         * Destructor
117         */
118      Engine::~Engine() {      Engine::~Engine() {
119            MidiInputPort::RemoveSysexListener(this);
120          if (pDiskThread) {          if (pDiskThread) {
121                dmsg(1,("Stopping disk thread..."));
122              pDiskThread->StopThread();              pDiskThread->StopThread();
123              delete pDiskThread;              delete pDiskThread;
124                dmsg(1,("OK\n"));
125          }          }
         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;  
126          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
127          if (pEventPool)  delete pEventPool;          if (pEventPool)  delete pEventPool;
128          if (pVoicePool)  delete pVoicePool;          if (pVoicePool) {
129          if (pActiveKeys) delete pActiveKeys;              pVoicePool->clear();
130          if (pSysexBuffer) delete pSysexBuffer;              delete pVoicePool;
131            }
132          if (pEventGenerator) delete pEventGenerator;          if (pEventGenerator) delete pEventGenerator;
         if (pMainFilterParameters) delete[] pMainFilterParameters;  
         if (pBasicFilterParameters) delete[] pBasicFilterParameters;  
         if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];  
133          if (pVoiceStealingQueue) delete pVoiceStealingQueue;          if (pVoiceStealingQueue) delete pVoiceStealingQueue;
134            if (pSysexBuffer) delete pSysexBuffer;
135            EngineFactory::Destroy(this);
136      }      }
137    
138      void Engine::Enable() {      void Engine::Enable() {
# Line 127  namespace LinuxSampler { namespace gig { Line 159  namespace LinuxSampler { namespace gig {
159       */       */
160      void Engine::Reset() {      void Engine::Reset() {
161          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();  
   
162          ResetInternal();          ResetInternal();
163            ResetScaleTuning();
         // signal audio thread to continue with rendering  
         //SuspensionRequested = false;  
164          Enable();          Enable();
165      }      }
166    
167      /**      /**
168       *  Reset all voices and disk thread and clear input event queue and all       *  Reset all voices and disk thread and clear input event queue and all
169       *  control and status variables. This method is not thread safe!       *  control and status variables. This method is protected by a mutex.
170       */       */
171      void Engine::ResetInternal() {      void Engine::ResetInternal() {
172          Pitch               = 0;          ResetInternalMutex.Lock();
173          SustainPedal        = false;  
174            // make sure that the engine does not get any sysex messages
175            // while it's reseting
176            bool sysexDisabled = MidiInputPort::RemoveSysexListener(this);
177          ActiveVoiceCount    = 0;          ActiveVoiceCount    = 0;
178          ActiveVoiceCountMax = 0;          ActiveVoiceCountMax = 0;
         GlobalVolume        = 1.0;  
179    
180          // reset voice stealing parameters          // reset voice stealing parameters
         itLastStolenVoice = RTList<Voice>::Iterator();  
         iuiLastStolenKey  = RTList<uint>::Iterator();  
181          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
182            itLastStolenVoice          = RTList<Voice>::Iterator();
183          // reset to normal chromatic scale (means equal temper)          itLastStolenVoiceGlobally  = RTList<Voice>::Iterator();
184          memset(&ScaleTuning[0], 0x00, 12);          iuiLastStolenKey           = RTList<uint>::Iterator();
185            iuiLastStolenKeyGlobally   = RTList<uint>::Iterator();
186          // 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;  
187    
188          // reset all voices          // reset all voices
189          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 191  namespace LinuxSampler { namespace gig {
191          }          }
192          pVoicePool->clear();          pVoicePool->clear();
193    
         // free all active keys  
         pActiveKeys->clear();  
   
194          // reset disk thread          // reset disk thread
195          if (pDiskThread) pDiskThread->Reset();          if (pDiskThread) pDiskThread->Reset();
196    
197          // delete all input events          // delete all input events
198          pEventQueue->init();          pEventQueue->init();
199            pSysexBuffer->init();
200            if (sysexDisabled) MidiInputPort::AddSysexListener(this);
201            ResetInternalMutex.Unlock();
202      }      }
203    
204      /**      /**
205       *  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  
206       */       */
207      void Engine::LoadInstrument(const char* FileName, uint Instrument) {      void Engine::ResetScaleTuning() {
208            memset(&ScaleTuning[0], 0x00, 12);
         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.  
      */  
     void Engine::ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg) {  
         dmsg(3,("gig::Engine: Received instrument update message.\n"));  
         DisableAndLock();  
         ResetInternal();  
         this->pInstrument = NULL;  
209      }      }
210    
211      /**      /**
212       * Will be called by the InstrumentResourceManager when the instrument       * Connect this engine instance with the given audio output device.
213       * update process was completed, so we can continue with playback.       * This method will be called when an Engine instance is created.
214         * All of the engine's data structures which are dependant to the used
215         * audio output device / driver will be (re)allocated and / or
216         * adjusted appropriately.
217         *
218         * @param pAudioOut - audio output device to connect to
219       */       */
     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();  
     }  
   
220      void Engine::Connect(AudioOutputDevice* pAudioOut) {      void Engine::Connect(AudioOutputDevice* pAudioOut) {
221          pAudioOutputDevice = pAudioOut;          pAudioOutputDevice = pAudioOut;
222    
# Line 307  namespace LinuxSampler { namespace gig { Line 231  namespace LinuxSampler { namespace gig {
231              throw LinuxSamplerException(msg);              throw LinuxSamplerException(msg);
232          }          }
233    
234          this->AudioDeviceChannelLeft  = 0;          this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle();
235          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();  
236    
237          // FIXME: audio drivers with varying fragment sizes might be a problem here          // FIXME: audio drivers with varying fragment sizes might be a problem here
238          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1;          MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1;
239          if (MaxFadeOutPos < 0)          if (MaxFadeOutPos < 0) {
240              throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h to big for current audio fragment size / sampling rate!");              std::cerr << "gig::Engine: WARNING, CONFIG_EG_MIN_RELEASE_TIME "
241                          << "too big for current audio fragment size & sampling rate! "
242                          << "May lead to click sounds if voice stealing chimes in!\n" << std::flush;
243                // force volume ramp downs at the beginning of each fragment
244                MaxFadeOutPos = 0;
245                // lower minimum release time
246                const float minReleaseTime = (float) MaxSamplesPerCycle / (float) SampleRate;
247                for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
248                    iterVoice->EG1.CalculateFadeOutCoeff(minReleaseTime, SampleRate);
249                }
250                pVoicePool->clear();
251            }
252    
253          // (re)create disk thread          // (re)create disk thread
254          if (this->pDiskThread) {          if (this->pDiskThread) {
255                dmsg(1,("Stopping disk thread..."));
256              this->pDiskThread->StopThread();              this->pDiskThread->StopThread();
257              delete this->pDiskThread;              delete this->pDiskThread;
258                dmsg(1,("OK\n"));
259          }          }
260          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
261          if (!pDiskThread) {          if (!pDiskThread) {
262              dmsg(0,("gig::Engine  new diskthread = NULL\n"));              dmsg(0,("gig::Engine  new diskthread = NULL\n"));
263              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
# Line 340  namespace LinuxSampler { namespace gig { Line 273  namespace LinuxSampler { namespace gig {
273          if (pEventGenerator) delete pEventGenerator;          if (pEventGenerator) delete pEventGenerator;
274          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());          pEventGenerator = new EventGenerator(pAudioOut->SampleRate());
275    
         // (re)allocate synthesis parameter matrix  
         if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0];  
         pSynthesisParameters[0] = new float[Event::destination_count * pAudioOut->MaxSamplesPerCycle()];  
         for (int dst = 1; dst < Event::destination_count; dst++)  
             pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle();  
   
         // (re)allocate biquad filter parameter sequence  
         if (pBasicFilterParameters) delete[] pBasicFilterParameters;  
         if (pMainFilterParameters)  delete[] pMainFilterParameters;  
         pBasicFilterParameters = new biquad_param_t[pAudioOut->MaxSamplesPerCycle()];  
         pMainFilterParameters  = new biquad_param_t[pAudioOut->MaxSamplesPerCycle()];  
   
276          dmsg(1,("Starting disk thread..."));          dmsg(1,("Starting disk thread..."));
277          pDiskThread->StartThread();          pDiskThread->StartThread();
278          dmsg(1,("OK\n"));          dmsg(1,("OK\n"));
# Line 364  namespace LinuxSampler { namespace gig { Line 285  namespace LinuxSampler { namespace gig {
285          }          }
286      }      }
287    
288      void Engine::DisconnectAudioOutputDevice() {      /**
289          if (pAudioOutputDevice) { // if clause to prevent disconnect loops       * Clear all engine global event lists.
290              AudioOutputDevice* olddevice = pAudioOutputDevice;       */
291              pAudioOutputDevice = NULL;      void Engine::ClearEventLists() {
292              olddevice->Disconnect(this);          pGlobalEvents->clear();
293              AudioDeviceChannelLeft  = -1;      }
294              AudioDeviceChannelRight = -1;  
295        /**
296         * Copy all events from the engine's global input queue buffer to the
297         * engine's internal event list. This will be done at the beginning of
298         * each audio cycle (that is each RenderAudio() call) to distinguish
299         * all global events which have to be processed in the current audio
300         * cycle. These events are usually just SysEx messages. Every
301         * EngineChannel has it's own input event queue buffer and event list
302         * to handle common events like NoteOn, NoteOff and ControlChange
303         * events.
304         *
305         * @param Samples - number of sample points to be processed in the
306         *                  current audio cycle
307         */
308        void Engine::ImportEvents(uint Samples) {
309            RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
310            Event* pEvent;
311            while (true) {
312                // get next event from input event queue
313                if (!(pEvent = eventQueueReader.pop())) break;
314                // if younger event reached, ignore that and all subsequent ones for now
315                if (pEvent->FragmentPos() >= Samples) {
316                    eventQueueReader--;
317                    dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));
318                    pEvent->ResetFragmentPos();
319                    break;
320                }
321                // copy event to internal event list
322                if (pGlobalEvents->poolIsEmpty()) {
323                    dmsg(1,("Event pool emtpy!\n"));
324                    break;
325                }
326                *pGlobalEvents->allocAppend() = *pEvent;
327          }          }
328            eventQueueReader.free(); // free all copied events from input queue
329      }      }
330    
331      /**      /**
# Line 387  namespace LinuxSampler { namespace gig { Line 341  namespace LinuxSampler { namespace gig {
341      int Engine::RenderAudio(uint Samples) {      int Engine::RenderAudio(uint Samples) {
342          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));
343    
344          // return if no instrument loaded or engine disabled          // return if engine disabled
345          if (EngineDisabled.Pop()) {          if (EngineDisabled.Pop()) {
346              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));
347              return 0;              return 0;
348          }          }
         if (!pInstrument) {  
             dmsg(5,("gig::Engine: no instrument loaded\n"));  
             return 0;  
         }  
349    
350            // update time of start and end of this audio fragment (as events' time stamps relate to this)
351            pEventGenerator->UpdateFragmentTime(Samples);
352    
353          // empty the event lists for the new fragment          // We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned
354          pEvents->clear();          // in each audio fragment. All subsequent request for spawning new
355          pCCEvents->clear();          // voices in the same audio fragment will be ignored.
356          for (uint i = 0; i < Event::destination_count; i++) {          VoiceSpawnsLeft = CONFIG_MAX_VOICES;
357              pSynthesisEvents[i]->clear();  
358          }          // get all events from the engine's global input event queue which belong to the current fragment
359            // (these are usually just SysEx messages)
360            ImportEvents(Samples);
361    
362            // process engine global events (these are currently only MIDI System Exclusive messages)
363          {          {
364              RTList<uint>::Iterator iuiKey = pActiveKeys->first();              RTList<Event>::Iterator itEvent = pGlobalEvents->first();
365              RTList<uint>::Iterator end    = pActiveKeys->end();              RTList<Event>::Iterator end     = pGlobalEvents->end();
366              for(; iuiKey != end; ++iuiKey) {              for (; itEvent != end; ++itEvent) {
367                  pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key                  switch (itEvent->Type) {
368                        case Event::type_sysex:
369                            dmsg(5,("Engine: Sysex received\n"));
370                            ProcessSysex(itEvent);
371                            break;
372                    }
373              }              }
374          }          }
375    
376          // read and copy events from input queue          // reset internal voice counter (just for statistic of active voices)
377          Event event = pEventGenerator->CreateEvent();          ActiveVoiceCountTemp = 0;
378          while (true) {  
379              if (!pEventQueue->pop(&event) || pEvents->poolIsEmpty()) break;          // handle events on all engine channels
380              *pEvents->allocAppend() = event;          for (int i = 0; i < engineChannels.size(); i++) {
381                if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
382                ProcessEvents(engineChannels[i], Samples);
383          }          }
384    
385            // render all 'normal', active voices on all engine channels
386            for (int i = 0; i < engineChannels.size(); i++) {
387                if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
388                RenderActiveVoices(engineChannels[i], Samples);
389            }
390    
391            // now that all ordinary voices on ALL engine channels are rendered, render new stolen voices
392            RenderStolenVoices(Samples);
393    
394            // handle cleanup on all engine channels for the next audio fragment
395            for (int i = 0; i < engineChannels.size(); i++) {
396                if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
397                PostProcess(engineChannels[i]);
398            }
399    
         // update time of start and end of this audio fragment (as events' time stamps relate to this)  
         pEventGenerator->UpdateFragmentTime(Samples);  
400    
401            // empty the engine's event list for the next audio fragment
402            ClearEventLists();
403    
404            // reset voice stealing for the next audio fragment
405            pVoiceStealingQueue->clear();
406    
407            // just some statistics about this engine instance
408            ActiveVoiceCount = ActiveVoiceCountTemp;
409            if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
410    
411            FrameTime += Samples;
412    
413            return 0;
414        }
415    
416        /**
417         * Dispatch and handle all events in this audio fragment for the given
418         * engine channel.
419         *
420         * @param pEngineChannel - engine channel on which events should be
421         *                         processed
422         * @param Samples        - amount of sample points to be processed in
423         *                         this audio fragment cycle
424         */
425        void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {
426            // get all events from the engine channels's input event queue which belong to the current fragment
427            // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)
428            pEngineChannel->ImportEvents(Samples);
429    
430          // process events          // process events
431          {          {
432              RTList<Event>::Iterator itEvent = pEvents->first();              RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first();
433              RTList<Event>::Iterator end     = pEvents->end();              RTList<Event>::Iterator end     = pEngineChannel->pEvents->end();
434              for (; itEvent != end; ++itEvent) {              for (; itEvent != end; ++itEvent) {
435                  switch (itEvent->Type) {                  switch (itEvent->Type) {
436                      case Event::type_note_on:                      case Event::type_note_on:
437                          dmsg(5,("Engine: Note on received\n"));                          dmsg(5,("Engine: Note on received\n"));
438                          ProcessNoteOn(itEvent);                          ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent);
439                          break;                          break;
440                      case Event::type_note_off:                      case Event::type_note_off:
441                          dmsg(5,("Engine: Note off received\n"));                          dmsg(5,("Engine: Note off received\n"));
442                          ProcessNoteOff(itEvent);                          ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent);
443                          break;                          break;
444                      case Event::type_control_change:                      case Event::type_control_change:
445                          dmsg(5,("Engine: MIDI CC received\n"));                          dmsg(5,("Engine: MIDI CC received\n"));
446                          ProcessControlChange(itEvent);                          ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent);
447                          break;                          break;
448                      case Event::type_pitchbend:                      case Event::type_pitchbend:
449                          dmsg(5,("Engine: Pitchbend received\n"));                          dmsg(5,("Engine: Pitchbend received\n"));
450                          ProcessPitchbend(itEvent);                          ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent);
                         break;  
                     case Event::type_sysex:  
                         dmsg(5,("Engine: Sysex received\n"));  
                         ProcessSysex(itEvent);  
451                          break;                          break;
452                  }                  }
453              }              }
454          }          }
455    
456            // reset voice stealing for the next engine channel (or next audio fragment)
457            itLastStolenVoice         = RTList<Voice>::Iterator();
458            itLastStolenVoiceGlobally = RTList<Voice>::Iterator();
459            iuiLastStolenKey          = RTList<uint>::Iterator();
460            iuiLastStolenKeyGlobally  = RTList<uint>::Iterator();
461            pLastStolenChannel        = NULL;
462        }
463    
464          int active_voices = 0;      /**
465         * Render all 'normal' voices (that is voices which were not stolen in
466          // render audio from all active voices       * this fragment) on the given engine channel.
467          {       *
468              RTList<uint>::Iterator iuiKey = pActiveKeys->first();       * @param pEngineChannel - engine channel on which audio should be
469              RTList<uint>::Iterator end    = pActiveKeys->end();       *                         rendered
470              while (iuiKey != end) { // iterate through all active keys       * @param Samples        - amount of sample points to be rendered in
471                  midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];       *                         this audio fragment cycle
472                  ++iuiKey;       */
473        void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {
474                  RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();          #if !CONFIG_PROCESS_MUTED_CHANNELS
475                  RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
476                  for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key          #endif
477                      // now render current voice  
478                      itVoice->Render(Samples);          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
479                      if (itVoice->IsActive()) active_voices++; // still active          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
480                      else { // voice reached end, is now inactive          while (iuiKey != end) { // iterate through all active keys
481                          FreeVoice(itVoice); // remove voice from the list of active voices              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
482                      }              ++iuiKey;
483                  }  
484              }              RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
485          }              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
486                for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
487                    // now render current voice
488          // now render all postponed voices from voice stealing                  itVoice->Render(Samples);
489          {                  if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active
490              RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();                  else { // voice reached end, is now inactive
491              RTList<Event>::Iterator end               = pVoiceStealingQueue->end();                      FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices
             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  
                         }  
                     }  
492                  }                  }
                 else dmsg(1,("Ouch, voice stealing didn't work out!\n"));  
493              }              }
494          }          }
         // 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;  
495      }      }
496    
497      /**      /**
498       *  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
499       *  voice for the given key.       * fragment) on the given engine channel. Stolen voices are rendered
500         * after all normal voices have been rendered; this is needed to render
501         * audio of those voices which were selected for voice stealing until
502         * the point were the stealing (that is the take over of the voice)
503         * actually happened.
504       *       *
505       *  @param Key      - MIDI key number of the triggered key       * @param pEngineChannel - engine channel on which audio should be
506       *  @param Velocity - MIDI velocity value of the triggered key       *                         rendered
507       */       * @param Samples        - amount of sample points to be rendered in
508      void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {       *                         this audio fragment cycle
509          Event event               = pEventGenerator->CreateEvent();       */
510          event.Type                = Event::type_note_on;      void Engine::RenderStolenVoices(uint Samples) {
511          event.Param.Note.Key      = Key;          RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
512          event.Param.Note.Velocity = Velocity;          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
513          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
514          else dmsg(1,("Engine: Input event queue full!"));              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
515      }              Pool<Voice>::Iterator itNewVoice =
516                    LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false);
517                if (itNewVoice) {
518                    itNewVoice->Render(Samples);
519                    if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active
520                    else { // voice reached end, is now inactive
521                        FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices
522                    }
523                }
524                else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
525    
526      /**              // we need to clear the key's event list explicitly here in case key was never active
527       *  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];
528       *  voice(s) on the given key.              pKey->VoiceTheftsQueued--;
529       *              if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear();
530       *  @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!"));  
531      }      }
532    
533      /**      /**
534       *  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
535       *  the pitch value for all voices.       * the list of active keys and clear all event lists on that engine
536         * channel.
537       *       *
538       *  @param Pitch - MIDI pitch value (-8192 ... +8191)       * @param pEngineChannel - engine channel to cleanup
539       */       */
540      void Engine::SendPitchbend(int Pitch) {      void Engine::PostProcess(EngineChannel* pEngineChannel) {
541          Event event             = pEventGenerator->CreateEvent();          // free all keys which have no active voices left
542          event.Type              = Event::type_pitchbend;          {
543          event.Param.Pitch.Pitch = Pitch;              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
544          if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);              RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
545          else dmsg(1,("Engine: Input event queue full!"));              while (iuiKey != end) { // iterate through all active keys
546      }                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
547                    ++iuiKey;
548                    if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey);
549                    #if CONFIG_DEVMODE
550                    else { // just a sanity check for debugging
551                        RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
552                        RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
553                        for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
554                            if (itVoice->itKillEvent) {
555                                dmsg(1,("gig::Engine: ERROR, killed voice survived !!!\n"));
556                            }
557                        }
558                    }
559                    #endif // CONFIG_DEVMODE
560                }
561            }
562    
563      /**          // empty the engine channel's own event lists
564       *  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!"));  
565      }      }
566    
567      /**      /**
# Line 585  namespace LinuxSampler { namespace gig { Line 575  namespace LinuxSampler { namespace gig {
575          Event event             = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
576          event.Type              = Event::type_sysex;          event.Type              = Event::type_sysex;
577          event.Param.Sysex.Size  = Size;          event.Param.Sysex.Size  = Size;
578            event.pEngineChannel    = NULL; // as Engine global event
579          if (pEventQueue->write_space() > 0) {          if (pEventQueue->write_space() > 0) {
580              if (pSysexBuffer->write_space() >= Size) {              if (pSysexBuffer->write_space() >= Size) {
581                  // copy sysex data to input buffer                  // copy sysex data to input buffer
# Line 600  namespace LinuxSampler { namespace gig { Line 591  namespace LinuxSampler { namespace gig {
591                  // finally place sysex event into input event queue                  // finally place sysex event into input event queue
592                  pEventQueue->push(&event);                  pEventQueue->push(&event);
593              }              }
594              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));
595          }          }
596          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
597      }      }
# Line 608  namespace LinuxSampler { namespace gig { Line 599  namespace LinuxSampler { namespace gig {
599      /**      /**
600       *  Assigns and triggers a new voice for the respective MIDI key.       *  Assigns and triggers a new voice for the respective MIDI key.
601       *       *
602         *  @param pEngineChannel - engine channel on which this event occured on
603       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
604       */       */
605      void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) {      void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
606          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];          #if !CONFIG_PROCESS_MUTED_CHANNELS
607            if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
608            #endif
609    
610            const int key = itNoteOnEvent->Param.Note.Key;
611            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];
612    
613            // move note on event to the key's own event list
614            RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
615    
616            // if Solo Mode then kill all already active voices
617            if (pEngineChannel->SoloMode) {
618                Pool<uint>::Iterator itYoungestKey = pEngineChannel->pActiveKeys->last();
619                if (itYoungestKey) {
620                    const int iYoungestKey = *itYoungestKey;
621                    const midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[iYoungestKey];
622                    if (pOtherKey->Active) {
623                        // get final portamento position of currently active voice
624                        if (pEngineChannel->PortamentoMode) {
625                            RTList<Voice>::Iterator itVoice = pOtherKey->pActiveVoices->last();
626                            if (itVoice) itVoice->UpdatePortamentoPos(itNoteOnEventOnKeyList);
627                        }
628                        // kill all voices on the (other) key
629                        RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
630                        RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
631                        for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
632                            if (itVoiceToBeKilled->Type != Voice::type_release_trigger)
633                                itVoiceToBeKilled->Kill(itNoteOnEventOnKeyList);
634                        }
635                    }
636                }
637                // set this key as 'currently active solo key'
638                pEngineChannel->SoloKey = key;
639            }
640    
641            // Change key dimension value if key is in keyswitching area
642            {
643                const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument;
644                if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)
645                    pEngineChannel->CurrentKeyDimension = float(key - pInstrument->DimensionKeyRange.low) /
646                        (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);
647            }
648    
649          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
650            pKey->Velocity   = itNoteOnEventOnKeyList->Param.Note.Velocity;
651            pKey->NoteOnTime = FrameTime + itNoteOnEventOnKeyList->FragmentPos(); // will be used to calculate note length
652    
653          // cancel release process of voices on this key if needed          // cancel release process of voices on this key if needed
654          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
655              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();
656              if (itCancelReleaseEvent) {              if (itCancelReleaseEvent) {
657                  *itCancelReleaseEvent = *itNoteOnEvent;                  // copy event                  *itCancelReleaseEvent = *itNoteOnEventOnKeyList;         // copy event
658                  itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type                  itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type
659              }              }
660              else dmsg(1,("Event pool emtpy!\n"));              else dmsg(1,("Event pool emtpy!\n"));
661          }          }
662    
663          // move note on event to the key's own event list          // allocate and trigger new voice(s) for the key
664          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);          {
665                // first, get total amount of required voices (dependant on amount of layers)
666                ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key);
667                if (pRegion) {
668                    int voicesRequired = pRegion->Layers;
669                    // now launch the required amount of voices
670                    for (int i = 0; i < voicesRequired; i++)
671                        LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true, true);
672                }
673            }
674    
675            // if neither a voice was spawned or postponed then remove note on event from key again
676            if (!pKey->Active && !pKey->VoiceTheftsQueued)
677                pKey->pEvents->free(itNoteOnEventOnKeyList);
678    
679          // allocate and trigger a new voice for the key          if (!pEngineChannel->SoloMode || pEngineChannel->PortamentoPos < 0.0f) pEngineChannel->PortamentoPos = (float) key;
680          LaunchVoice(itNoteOnEventOnKeyList);          pKey->RoundRobinIndex++;
681      }      }
682    
683      /**      /**
# Line 638  namespace LinuxSampler { namespace gig { Line 686  namespace LinuxSampler { namespace gig {
686       *  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.
687       *  due to completion of sample playback).       *  due to completion of sample playback).
688       *       *
689         *  @param pEngineChannel - engine channel on which this event occured on
690       *  @param itNoteOffEvent - key, velocity and time stamp of the event       *  @param itNoteOffEvent - key, velocity and time stamp of the event
691       */       */
692      void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) {      void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) {
693          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];          #if !CONFIG_PROCESS_MUTED_CHANNELS
694            if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
695            #endif
696    
697            const int iKey = itNoteOffEvent->Param.Note.Key;
698            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey];
699          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
700    
         // release voices on this key if needed  
         if (pKey->Active && !SustainPedal) {  
             itNoteOffEvent->Type = Event::type_release; // transform event type  
         }  
   
701          // move event to the key's own event list          // move event to the key's own event list
702          RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);          RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);
703    
704          // spawn release triggered voice(s) if needed          bool bShouldRelease = pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEventOnKeyList->Param.Note.Key);
705          if (pKey->ReleaseTrigger) {  
706              LaunchVoice(itNoteOffEventOnKeyList, 0, true);          // in case Solo Mode is enabled, kill all voices on this key and respawn a voice on the highest pressed key (if any)
707              pKey->ReleaseTrigger = false;          if (pEngineChannel->SoloMode) { //TODO: this feels like too much code just for handling solo mode :P
708                bool bOtherKeysPressed = false;
709                if (iKey == pEngineChannel->SoloKey) {
710                    pEngineChannel->SoloKey = -1;
711                    // if there's still a key pressed down, respawn a voice (group) on the highest key
712                    for (int i = 127; i > 0; i--) {
713                        midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[i];
714                        if (pOtherKey->KeyPressed) {
715                            bOtherKeysPressed = true;
716                            // make the other key the new 'currently active solo key'
717                            pEngineChannel->SoloKey = i;
718                            // get final portamento position of currently active voice
719                            if (pEngineChannel->PortamentoMode) {
720                                RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first();
721                                if (itVoice) itVoice->UpdatePortamentoPos(itNoteOffEventOnKeyList);
722                            }
723                            // create a pseudo note on event
724                            RTList<Event>::Iterator itPseudoNoteOnEvent = pOtherKey->pEvents->allocAppend();
725                            if (itPseudoNoteOnEvent) {
726                                // copy event
727                                *itPseudoNoteOnEvent = *itNoteOffEventOnKeyList;
728                                // transform event to a note on event
729                                itPseudoNoteOnEvent->Type                = Event::type_note_on;
730                                itPseudoNoteOnEvent->Param.Note.Key      = i;
731                                itPseudoNoteOnEvent->Param.Note.Velocity = pOtherKey->Velocity;
732                                // allocate and trigger new voice(s) for the other key
733                                {
734                                    // first, get total amount of required voices (dependant on amount of layers)
735                                    ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(i);
736                                    if (pRegion) {
737                                        int voicesRequired = pRegion->Layers;
738                                        // now launch the required amount of voices
739                                        for (int iLayer = 0; iLayer < voicesRequired; iLayer++)
740                                            LaunchVoice(pEngineChannel, itPseudoNoteOnEvent, iLayer, false, true, false);
741                                    }
742                                }
743                                // if neither a voice was spawned or postponed then remove note on event from key again
744                                if (!pOtherKey->Active && !pOtherKey->VoiceTheftsQueued)
745                                    pOtherKey->pEvents->free(itPseudoNoteOnEvent);
746    
747                            } else dmsg(1,("Could not respawn voice, no free event left\n"));
748                            break; // done
749                        }
750                    }
751                }
752                if (bOtherKeysPressed) {
753                    if (pKey->Active) { // kill all voices on this key
754                        bShouldRelease = false; // no need to release, as we kill it here
755                        RTList<Voice>::Iterator itVoiceToBeKilled = pKey->pActiveVoices->first();
756                        RTList<Voice>::Iterator end               = pKey->pActiveVoices->end();
757                        for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
758                            if (itVoiceToBeKilled->Type != Voice::type_release_trigger)
759                                itVoiceToBeKilled->Kill(itNoteOffEventOnKeyList);
760                        }
761                    }
762                } else pEngineChannel->PortamentoPos = -1.0f;
763            }
764    
765            // if no solo mode (the usual case) or if solo mode and no other key pressed, then release voices on this key if needed
766            if (bShouldRelease) {
767                itNoteOffEventOnKeyList->Type = Event::type_release; // transform event type
768    
769                // spawn release triggered voice(s) if needed
770                if (pKey->ReleaseTrigger) {
771                    // first, get total amount of required voices (dependant on amount of layers)
772                    ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
773                    if (pRegion) {
774                        int voicesRequired = pRegion->Layers;
775    
776                        // MIDI note-on velocity is used instead of note-off velocity
777                        itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity;
778    
779                        // now launch the required amount of voices
780                        for (int i = 0; i < voicesRequired; i++)
781                            LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
782                    }
783                    pKey->ReleaseTrigger = false;
784                }
785          }          }
786    
787            // if neither a voice was spawned or postponed on this key then remove note off event from key again
788            if (!pKey->Active && !pKey->VoiceTheftsQueued)
789                pKey->pEvents->free(itNoteOffEventOnKeyList);
790      }      }
791    
792      /**      /**
793       *  Moves pitchbend event from the general (input) event list to the pitch       *  Moves pitchbend event from the general (input) event list to the engine
794       *  event list.       *  channel's event list. It will actually processed later by the
795         *  respective voice.
796       *       *
797         *  @param pEngineChannel - engine channel on which this event occured on
798       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event
799       */       */
800      void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) {      void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) {
801          this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value          pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value
         itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]);  
802      }      }
803    
804      /**      /**
# Line 676  namespace LinuxSampler { namespace gig { Line 806  namespace LinuxSampler { namespace gig {
806       *  called by the ProcessNoteOn() method and by the voices itself       *  called by the ProcessNoteOn() method and by the voices itself
807       *  (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).
808       *       *
809         *  @param pEngineChannel      - engine channel on which this event occured on
810       *  @param itNoteOnEvent       - key, velocity and time stamp of the event       *  @param itNoteOnEvent       - key, velocity and time stamp of the event
811       *  @param iLayer              - layer index for the new voice (optional - only       *  @param iLayer              - layer index for the new voice (optional - only
812       *                               in case of layered sounds of course)       *                               in case of layered sounds of course)
# Line 684  namespace LinuxSampler { namespace gig { Line 815  namespace LinuxSampler { namespace gig {
815       *  @param VoiceStealing       - if voice stealing should be performed       *  @param VoiceStealing       - if voice stealing should be performed
816       *                               when there is no free voice       *                               when there is no free voice
817       *                               (optional, default = true)       *                               (optional, default = true)
818         *  @param HandleKeyGroupConflicts - if voices should be killed due to a
819         *                                   key group conflict
820       *  @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
821       *           if an error occured while trying to trigger the new voice       *           if the voice wasn't triggered (for example when no region is
822         *           defined for the given key).
823       */       */
824      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, bool HandleKeyGroupConflicts) {
825          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];          int MIDIKey            = itNoteOnEvent->Param.Note.Key;
826            midi_key_info_t* pKey  = &pEngineChannel->pMIDIKeyInfo[MIDIKey];
827            ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(MIDIKey);
828    
829            // if nothing defined for this key
830            if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do
831    
832            // only mark the first voice of a layered voice (group) to be in a
833            // key group, so the layered voices won't kill each other
834            int iKeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0;
835    
836            // handle key group (a.k.a. exclusive group) conflicts
837            if (HandleKeyGroupConflicts) {
838                if (iKeyGroup) { // if this voice / key belongs to a key group
839                    uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[iKeyGroup];
840                    if (*ppKeyGroup) { // if there's already an active key in that key group
841                        midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup];
842                        // kill all voices on the (other) key
843                        RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
844                        RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
845                        for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
846                            if (itVoiceToBeKilled->Type != Voice::type_release_trigger) {
847                                itVoiceToBeKilled->Kill(itNoteOnEvent);
848                                --VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict
849                            }
850                        }
851                    }
852                }
853            }
854    
855            Voice::type_t VoiceType = Voice::type_normal;
856    
857            // get current dimension values to select the right dimension region
858            //TODO: for stolen voices this dimension region selection block is processed twice, this should be changed
859            //FIXME: controller values for selecting the dimension region here are currently not sample accurate
860            uint DimValues[8] = { 0 };
861            for (int i = pRegion->Dimensions - 1; i >= 0; i--) {
862                switch (pRegion->pDimensionDefinitions[i].dimension) {
863                    case ::gig::dimension_samplechannel:
864                        DimValues[i] = 0; //TODO: we currently ignore this dimension
865                        break;
866                    case ::gig::dimension_layer:
867                        DimValues[i] = iLayer;
868                        break;
869                    case ::gig::dimension_velocity:
870                        DimValues[i] = itNoteOnEvent->Param.Note.Velocity;
871                        break;
872                    case ::gig::dimension_channelaftertouch:
873                        DimValues[i] = 0; //TODO: we currently ignore this dimension
874                        break;
875                    case ::gig::dimension_releasetrigger:
876                        VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal;
877                        DimValues[i] = (uint) ReleaseTriggerVoice;
878                        break;
879                    case ::gig::dimension_keyboard:
880                        DimValues[i] = (uint) (pEngineChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones);
881                        break;
882                    case ::gig::dimension_roundrobin:
883                        DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on
884                        break;
885                    case ::gig::dimension_random:
886                        RandomSeed   = RandomSeed * 1103515245 + 12345; // classic pseudo random number generator
887                        DimValues[i] = (uint) RandomSeed >> (32 - pRegion->pDimensionDefinitions[i].bits); // highest bits are most random
888                        break;
889                    case ::gig::dimension_modwheel:
890                        DimValues[i] = pEngineChannel->ControllerTable[1];
891                        break;
892                    case ::gig::dimension_breath:
893                        DimValues[i] = pEngineChannel->ControllerTable[2];
894                        break;
895                    case ::gig::dimension_foot:
896                        DimValues[i] = pEngineChannel->ControllerTable[4];
897                        break;
898                    case ::gig::dimension_portamentotime:
899                        DimValues[i] = pEngineChannel->ControllerTable[5];
900                        break;
901                    case ::gig::dimension_effect1:
902                        DimValues[i] = pEngineChannel->ControllerTable[12];
903                        break;
904                    case ::gig::dimension_effect2:
905                        DimValues[i] = pEngineChannel->ControllerTable[13];
906                        break;
907                    case ::gig::dimension_genpurpose1:
908                        DimValues[i] = pEngineChannel->ControllerTable[16];
909                        break;
910                    case ::gig::dimension_genpurpose2:
911                        DimValues[i] = pEngineChannel->ControllerTable[17];
912                        break;
913                    case ::gig::dimension_genpurpose3:
914                        DimValues[i] = pEngineChannel->ControllerTable[18];
915                        break;
916                    case ::gig::dimension_genpurpose4:
917                        DimValues[i] = pEngineChannel->ControllerTable[19];
918                        break;
919                    case ::gig::dimension_sustainpedal:
920                        DimValues[i] = pEngineChannel->ControllerTable[64];
921                        break;
922                    case ::gig::dimension_portamento:
923                        DimValues[i] = pEngineChannel->ControllerTable[65];
924                        break;
925                    case ::gig::dimension_sostenutopedal:
926                        DimValues[i] = pEngineChannel->ControllerTable[66];
927                        break;
928                    case ::gig::dimension_softpedal:
929                        DimValues[i] = pEngineChannel->ControllerTable[67];
930                        break;
931                    case ::gig::dimension_genpurpose5:
932                        DimValues[i] = pEngineChannel->ControllerTable[80];
933                        break;
934                    case ::gig::dimension_genpurpose6:
935                        DimValues[i] = pEngineChannel->ControllerTable[81];
936                        break;
937                    case ::gig::dimension_genpurpose7:
938                        DimValues[i] = pEngineChannel->ControllerTable[82];
939                        break;
940                    case ::gig::dimension_genpurpose8:
941                        DimValues[i] = pEngineChannel->ControllerTable[83];
942                        break;
943                    case ::gig::dimension_effect1depth:
944                        DimValues[i] = pEngineChannel->ControllerTable[91];
945                        break;
946                    case ::gig::dimension_effect2depth:
947                        DimValues[i] = pEngineChannel->ControllerTable[92];
948                        break;
949                    case ::gig::dimension_effect3depth:
950                        DimValues[i] = pEngineChannel->ControllerTable[93];
951                        break;
952                    case ::gig::dimension_effect4depth:
953                        DimValues[i] = pEngineChannel->ControllerTable[94];
954                        break;
955                    case ::gig::dimension_effect5depth:
956                        DimValues[i] = pEngineChannel->ControllerTable[95];
957                        break;
958                    case ::gig::dimension_none:
959                        std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush;
960                        break;
961                    default:
962                        std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;
963                }
964            }
965            ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
966    
967            // no need to continue if sample is silent
968            if (!pDimRgn->pSample || !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator();
969    
970          // allocate a new voice for the key          // allocate a new voice for the key
971          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
972          if (itNewVoice) {          if (itNewVoice) {
973              // launch the new voice              // launch the new voice
974              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice) < 0) {              if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pDimRgn, VoiceType, iKeyGroup) < 0) {
975                  dmsg(1,("Triggering new voice failed!\n"));                  dmsg(4,("Voice not triggered\n"));
976                  pKey->pActiveVoices->free(itNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
977              }              }
978              else { // on success              else { // on success
979                  uint** ppKeyGroup = NULL;                  --VoiceSpawnsLeft;
                 if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group  
                     ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup];  
                     if (*ppKeyGroup) { // if there's already an active key in that key group  
                         midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup];  
                         // kill all voices on the (other) key  
                         RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();  
                         RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();  
                         for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {  
                             if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent);  
                         }  
                     }  
                 }  
980                  if (!pKey->Active) { // mark as active key                  if (!pKey->Active) { // mark as active key
981                      pKey->Active = true;                      pKey->Active = true;
982                      pKey->itSelf = pActiveKeys->allocAppend();                      pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend();
983                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;
984                  }                  }
985                  if (itNewVoice->KeyGroup) {                  if (itNewVoice->KeyGroup) {
986                        uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];
987                      *ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group                      *ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group
988                  }                  }
989                  if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)                  if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s)
# Line 725  namespace LinuxSampler { namespace gig { Line 991  namespace LinuxSampler { namespace gig {
991              }              }
992          }          }
993          else if (VoiceStealing) {          else if (VoiceStealing) {
994              // first, get total amount of required voices (dependant on amount of layers)              // try to steal one voice
995              ::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);              int result = StealVoice(pEngineChannel, itNoteOnEvent);
996              if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed              if (!result) { // voice stolen successfully
997              int voicesRequired = pRegion->Layers;                  // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
998                    RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
999              // now steal the (remaining) amount of voices                  if (itStealEvent) {
1000              for (int i = iLayer; i < voicesRequired; i++)                      *itStealEvent = *itNoteOnEvent; // copy event
1001                  StealVoice(itNoteOnEvent);                      itStealEvent->Param.Note.Layer = iLayer;
1002                        itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
1003              // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died                      pKey->VoiceTheftsQueued++;
1004              RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();                  }
1005              if (itStealEvent) {                  else dmsg(1,("Voice stealing queue full!\n"));
                 *itStealEvent = *itNoteOnEvent; // copy event  
                 itStealEvent->Param.Note.Layer = iLayer;  
                 itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;  
1006              }              }
             else dmsg(1,("Voice stealing queue full!\n"));  
1007          }          }
1008    
1009          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 1015  namespace LinuxSampler { namespace gig {
1015       *  voice stealing and postpone the note-on event until the selected       *  voice stealing and postpone the note-on event until the selected
1016       *  voice actually died.       *  voice actually died.
1017       *       *
1018         *  @param pEngineChannel - engine channel on which this event occured on
1019       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
1020         *  @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing
1021       */       */
1022      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) {      int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
1023            if (VoiceSpawnsLeft <= 0) {
1024                dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n"));
1025                return -1;
1026            }
1027          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
1028    
1029              RTList<uint>::Iterator  iuiOldestKey;              RTList<Voice>::Iterator itSelectedVoice;
             RTList<Voice>::Iterator itOldestVoice;  
1030    
1031              // Select one voice for voice stealing              // Select one voice for voice stealing
1032              switch (VOICE_STEAL_ALGORITHM) {              switch (CONFIG_VOICE_STEAL_ALGO) {
1033    
1034                  // try to pick the oldest voice on the key where the new                  // try to pick the oldest voice on the key where the new
1035                  // voice should be spawned, if there is no voice on that                  // voice should be spawned, if there is no voice on that
1036                  // key, or no voice left to kill there, then procceed with                  // key, or no voice left to kill, then procceed with
1037                  // 'oldestkey' algorithm                  // 'oldestkey' algorithm
1038                  case voice_steal_algo_keymask: {                  case voice_steal_algo_oldestvoiceonkey: {
1039                      midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
1040                      if (itLastStolenVoice) {                      itSelectedVoice = pSelectedKey->pActiveVoices->first();
1041                          itOldestVoice = itLastStolenVoice;                      // proceed iterating if voice was created in this fragment cycle
1042                          ++itOldestVoice;                      while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
1043                      }                      // if we haven't found a voice then proceed with algorithm 'oldestkey'
1044                      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  
                     }  
1045                  } // no break - intentional !                  } // no break - intentional !
1046    
1047                  // try to pick the oldest voice on the oldest active key                  // try to pick the oldest voice on the oldest active key
1048                  // (caution: must stay after 'keymask' algorithm !)                  // from the same engine channel
1049                    // (caution: must stay after 'oldestvoiceonkey' algorithm !)
1050                  case voice_steal_algo_oldestkey: {                  case voice_steal_algo_oldestkey: {
1051                      if (itLastStolenVoice) {                      // if we already stole in this fragment, try to proceed on same key
1052                          midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey];                      if (this->itLastStolenVoice) {
1053                          itOldestVoice = itLastStolenVoice;                          itSelectedVoice = this->itLastStolenVoice;
1054                          ++itOldestVoice;                          do {
1055                          if (!itOldestVoice) {                              ++itSelectedVoice;
1056                              iuiOldestKey = iuiLastStolenKey;                          } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
1057                              ++iuiOldestKey;                          // found a "stealable" voice ?
1058                              if (iuiOldestKey) {                          if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1059                                  midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];                              // remember which voice we stole, so we can simply proceed on next voice stealing
1060                                  itOldestVoice = pOldestKey->pActiveVoices->first();                              this->itLastStolenVoice = itSelectedVoice;
1061                              }                              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;  
                             }  
1062                          }                          }
                         else iuiOldestKey = iuiLastStolenKey;  
1063                      }                      }
1064                      else { // no voice stolen in this audio fragment cycle yet                      // get (next) oldest key
1065                          iuiOldestKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first();
1066                          midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];                      while (iuiSelectedKey) {
1067                          itOldestVoice = pOldestKey->pActiveVoices->first();                          midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
1068                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
1069                            // proceed iterating if voice was created in this fragment cycle
1070                            while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
1071                            // found a "stealable" voice ?
1072                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1073                                // remember which voice on which key we stole, so we can simply proceed on next voice stealing
1074                                this->iuiLastStolenKey  = iuiSelectedKey;
1075                                this->itLastStolenVoice = itSelectedVoice;
1076                                break; // selection succeeded
1077                            }
1078                            ++iuiSelectedKey; // get next oldest key
1079                      }                      }
1080                      break;                      break;
1081                  }                  }
# Line 816  namespace LinuxSampler { namespace gig { Line 1084  namespace LinuxSampler { namespace gig {
1084                  case voice_steal_algo_none:                  case voice_steal_algo_none:
1085                  default: {                  default: {
1086                      dmsg(1,("No free voice (voice stealing disabled)!\n"));                      dmsg(1,("No free voice (voice stealing disabled)!\n"));
1087                      return;                      return -1;
1088                    }
1089                }
1090    
1091                // if we couldn't steal a voice from the same engine channel then
1092                // steal oldest voice on the oldest key from any other engine channel
1093                // (the smaller engine channel number, the higher priority)
1094                if (!itSelectedVoice || !itSelectedVoice->IsStealable()) {
1095                    EngineChannel* pSelectedChannel;
1096                    int            iChannelIndex;
1097                    // select engine channel
1098                    if (pLastStolenChannel) {
1099                        pSelectedChannel = pLastStolenChannel;
1100                        iChannelIndex    = pSelectedChannel->iEngineIndexSelf;
1101                    } else { // pick the engine channel followed by this engine channel
1102                        iChannelIndex    = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size();
1103                        pSelectedChannel = engineChannels[iChannelIndex];
1104                    }
1105    
1106                    // if we already stole in this fragment, try to proceed on same key
1107                    if (this->itLastStolenVoiceGlobally) {
1108                        itSelectedVoice = this->itLastStolenVoiceGlobally;
1109                        do {
1110                            ++itSelectedVoice;
1111                        } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
1112                    }
1113    
1114                    #if CONFIG_DEVMODE
1115                    EngineChannel* pBegin = pSelectedChannel; // to detect endless loop
1116                    #endif // CONFIG_DEVMODE
1117    
1118                    // did we find a 'stealable' voice?
1119                    if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1120                        // remember which voice we stole, so we can simply proceed on next voice stealing
1121                        this->itLastStolenVoiceGlobally = itSelectedVoice;
1122                    } else while (true) { // iterate through engine channels
1123                        // get (next) oldest key
1124                        RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKeyGlobally) ? ++this->iuiLastStolenKeyGlobally : pSelectedChannel->pActiveKeys->first();
1125                        this->iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); // to prevent endless loop (see line above)
1126                        while (iuiSelectedKey) {
1127                            midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];
1128                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
1129                            // proceed iterating if voice was created in this fragment cycle
1130                            while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
1131                            // found a "stealable" voice ?
1132                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1133                                // remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing
1134                                this->iuiLastStolenKeyGlobally  = iuiSelectedKey;
1135                                this->itLastStolenVoiceGlobally = itSelectedVoice;
1136                                this->pLastStolenChannel        = pSelectedChannel;
1137                                goto stealable_voice_found; // selection succeeded
1138                            }
1139                            ++iuiSelectedKey; // get next key on current engine channel
1140                        }
1141                        // get next engine channel
1142                        iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();
1143                        pSelectedChannel = engineChannels[iChannelIndex];
1144    
1145                        #if CONFIG_DEVMODE
1146                        if (pSelectedChannel == pBegin) {
1147                            dmsg(1,("FATAL ERROR: voice stealing endless loop!\n"));
1148                            dmsg(1,("VoiceSpawnsLeft=%d.\n", VoiceSpawnsLeft));
1149                            dmsg(1,("Exiting.\n"));
1150                            exit(-1);
1151                        }
1152                        #endif // CONFIG_DEVMODE
1153                  }                  }
1154              }              }
1155    
1156                // jump point if a 'stealable' voice was found
1157                stealable_voice_found:
1158    
1159                #if CONFIG_DEVMODE
1160                if (!itSelectedVoice->IsActive()) {
1161                    dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
1162                    return -1;
1163                }
1164                #endif // CONFIG_DEVMODE
1165    
1166              // now kill the selected voice              // now kill the selected voice
1167              itOldestVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
1168              // remember which voice on which key we stole, so we can simply proceed for the next voice stealing  
1169              this->itLastStolenVoice = itOldestVoice;              --VoiceSpawnsLeft;
1170              this->iuiLastStolenKey = iuiOldestKey;  
1171                return 0; // success
1172            }
1173            else {
1174                dmsg(1,("Event pool emtpy!\n"));
1175                return -1;
1176          }          }
         else dmsg(1,("Event pool emtpy!\n"));  
1177      }      }
1178    
1179      /**      /**
# Line 835  namespace LinuxSampler { namespace gig { Line 1182  namespace LinuxSampler { namespace gig {
1182       *  it finished to playback its sample, finished its release stage or       *  it finished to playback its sample, finished its release stage or
1183       *  just was killed.       *  just was killed.
1184       *       *
1185         *  @param pEngineChannel - engine channel on which this event occured on
1186       *  @param itVoice - points to the voice to be freed       *  @param itVoice - points to the voice to be freed
1187       */       */
1188      void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) {      void Engine::FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice) {
1189          if (itVoice) {          if (itVoice) {
1190              midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey];
1191    
1192              uint keygroup = itVoice->KeyGroup;              uint keygroup = itVoice->KeyGroup;
1193    
1194              // free the voice object              // free the voice object
1195              pVoicePool->free(itVoice);              pVoicePool->free(itVoice);
1196    
1197              // 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
1198              if (pKey->pActiveVoices->isEmpty()) {              if (pKey->pActiveVoices->isEmpty() && keygroup) {
1199                  if (keygroup) { // if voice / key belongs to a key group                  uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup];
1200                      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"));  
1201              }              }
1202          }          }
1203          else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush;          else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush;
1204      }      }
1205    
1206      /**      /**
1207         *  Called when there's no more voice left on a key, this call will
1208         *  update the key info respectively.
1209         *
1210         *  @param pEngineChannel - engine channel on which this event occured on
1211         *  @param pKey - key which is now inactive
1212         */
1213        void Engine::FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey) {
1214            if (pKey->pActiveVoices->isEmpty()) {
1215                pKey->Active = false;
1216                pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys
1217                pKey->itSelf = RTList<uint>::Iterator();
1218                pKey->ReleaseTrigger = false;
1219                pKey->pEvents->clear();
1220                dmsg(3,("Key has no more voices now\n"));
1221            }
1222            else dmsg(1,("gig::Engine: Oops, tried to free a key which contains voices.\n"));
1223        }
1224    
1225        /**
1226       *  Reacts on supported control change commands (e.g. pitch bend wheel,       *  Reacts on supported control change commands (e.g. pitch bend wheel,
1227       *  modulation wheel, aftertouch).       *  modulation wheel, aftertouch).
1228       *       *
1229         *  @param pEngineChannel - engine channel on which this event occured on
1230       *  @param itControlChangeEvent - controller, value and time stamp of the event       *  @param itControlChangeEvent - controller, value and time stamp of the event
1231       */       */
1232      void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) {      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {
1233          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));
1234    
1235            // update controller value in the engine channel's controller table
1236            pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
1237    
1238          switch (itControlChangeEvent->Param.CC.Controller) {          switch (itControlChangeEvent->Param.CC.Controller) {
1239              case 64: {              case 5: { // portamento time
1240                  if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) {                  pEngineChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN;
1241                      dmsg(4,("PEDAL DOWN\n"));                  break;
1242                      SustainPedal = true;              }
1243                case 7: { // volume
1244                    //TODO: not sample accurate yet
1245                    pEngineChannel->GlobalVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value] *  CONFIG_GLOBAL_ATTENUATION;
1246                    pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag
1247                    break;
1248                }
1249                case 10: { // panpot
1250                    //TODO: not sample accurate yet
1251                    pEngineChannel->GlobalPanLeft  = PanCurve[128 - itControlChangeEvent->Param.CC.Value];
1252                    pEngineChannel->GlobalPanRight = PanCurve[itControlChangeEvent->Param.CC.Value];
1253                    break;
1254                }
1255                case 64: { // sustain
1256                    if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {
1257                        dmsg(4,("DAMPER (RIGHT) PEDAL DOWN\n"));
1258                        pEngineChannel->SustainPedal = true;
1259    
1260                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1261                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1262                        #endif
1263    
1264                      // cancel release process of voices if necessary                      // cancel release process of voices if necessary
1265                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1266                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
1267                          itControlChangeEvent->Type = Event::type_cancel_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1268                          while (iuiKey) {                          if (!pKey->KeyPressed) {
1269                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1270                              ++iuiKey;                              if (itNewEvent) {
1271                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list
1272                                  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"));  
1273                              }                              }
1274                                else dmsg(1,("Event pool emtpy!\n"));
1275                          }                          }
1276                      }                      }
1277                  }                  }
1278                  if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) {                  if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {
1279                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("DAMPER (RIGHT) PEDAL UP\n"));
1280                      SustainPedal = false;                      pEngineChannel->SustainPedal = false;
1281    
1282                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1283                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1284                        #endif
1285    
1286                      // release voices if their respective key is not pressed                      // release voices if their respective key is not pressed
1287                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1288                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
1289                          itControlChangeEvent->Type = Event::type_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1290                          while (iuiKey) {                          if (!pKey->KeyPressed && ShouldReleaseVoice(pEngineChannel, *iuiKey)) {
1291                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1292                              ++iuiKey;                              if (itNewEvent) {
1293                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list
1294                                  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"));  
1295                              }                              }
1296                                else dmsg(1,("Event pool emtpy!\n"));
1297                            }
1298                        }
1299                    }
1300                    break;
1301                }
1302                case 65: { // portamento on / off
1303                    KillAllVoices(pEngineChannel, itControlChangeEvent);
1304                    pEngineChannel->PortamentoMode = itControlChangeEvent->Param.CC.Value >= 64;
1305                    break;
1306                }
1307                case 66: { // sostenuto
1308                    if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SostenutoPedal) {
1309                        dmsg(4,("SOSTENUTO (CENTER) PEDAL DOWN\n"));
1310                        pEngineChannel->SostenutoPedal = true;
1311    
1312                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1313                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1314                        #endif
1315    
1316                        SostenutoKeyCount = 0;
1317                        // Remeber the pressed keys
1318                        RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1319                        for (; iuiKey; ++iuiKey) {
1320                            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1321                            if (pKey->KeyPressed && SostenutoKeyCount < 128) SostenutoKeys[SostenutoKeyCount++] = *iuiKey;
1322                        }
1323                    }
1324                    if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SostenutoPedal) {
1325                        dmsg(4,("SOSTENUTO (CENTER) PEDAL UP\n"));
1326                        pEngineChannel->SostenutoPedal = false;
1327    
1328                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1329                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1330                        #endif
1331    
1332                        // release voices if the damper pedal is up and their respective key is not pressed
1333                        for (int i = 0; i < SostenutoKeyCount; i++) {
1334                            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[SostenutoKeys[i]];
1335                            if (!pKey->KeyPressed && !pEngineChannel->SustainPedal) {
1336                                RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1337                                if (itNewEvent) {
1338                                    *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list
1339                                    itNewEvent->Type = Event::type_release; // transform event type
1340                                }
1341                                else dmsg(1,("Event pool emtpy!\n"));
1342                          }                          }
1343                      }                      }
1344                  }                  }
1345                  break;                  break;
1346              }              }
         }  
1347    
         // update controller value in the engine's controller table  
         ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;  
1348    
1349          // move event from the unsorted event list to the control change event list              // Channel Mode Messages
1350          itControlChangeEvent.moveToEndOf(pCCEvents);  
1351                case 120: { // all sound off
1352                    KillAllVoices(pEngineChannel, itControlChangeEvent);
1353                    break;
1354                }
1355                case 121: { // reset all controllers
1356                    pEngineChannel->ResetControllers();
1357                    break;
1358                }
1359                case 123: { // all notes off
1360                    #if CONFIG_PROCESS_ALL_NOTES_OFF
1361                    ReleaseAllVoices(pEngineChannel, itControlChangeEvent);
1362                    #endif // CONFIG_PROCESS_ALL_NOTES_OFF
1363                    break;
1364                }
1365                case 126: { // mono mode on
1366                    KillAllVoices(pEngineChannel, itControlChangeEvent);
1367                    pEngineChannel->SoloMode = true;
1368                    break;
1369                }
1370                case 127: { // poly mode on
1371                    KillAllVoices(pEngineChannel, itControlChangeEvent);
1372                    pEngineChannel->SoloMode = false;
1373                    break;
1374                }
1375            }
1376      }      }
1377    
1378      /**      /**
# Line 938  namespace LinuxSampler { namespace gig { Line 1390  namespace LinuxSampler { namespace gig {
1390    
1391          switch (id) {          switch (id) {
1392              case 0x41: { // Roland              case 0x41: { // Roland
1393                    dmsg(3,("Roland Sysex\n"));
1394                  uint8_t device_id, model_id, cmd_id;                  uint8_t device_id, model_id, cmd_id;
1395                  if (!reader.pop(&device_id)) goto free_sysex_data;                  if (!reader.pop(&device_id)) goto free_sysex_data;
1396                  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 1403  namespace LinuxSampler { namespace gig {
1403                  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
1404                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1405                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1406                        dmsg(3,("\tSystem Parameter\n"));
1407                  }                  }
1408                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1409                        dmsg(3,("\tCommon Parameter\n"));
1410                  }                  }
1411                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)
1412                      switch (addr[3]) {                      dmsg(3,("\tPart Parameter\n"));
1413                        switch (addr[2]) {
1414                          case 0x40: { // scale tuning                          case 0x40: { // scale tuning
1415                                dmsg(3,("\t\tScale Tuning\n"));
1416                              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
1417                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;
1418                              uint8_t checksum;                              uint8_t checksum;
1419                              if (!reader.pop(&checksum))                      goto free_sysex_data;                              if (!reader.pop(&checksum)) goto free_sysex_data;
1420                              if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data;                              #if CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1421                                if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data;
1422                                #endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1423                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;
1424                              AdjustScale((int8_t*) scale_tunes);                              AdjustScale((int8_t*) scale_tunes);
1425                                dmsg(3,("\t\t\tNew scale applied.\n"));
1426                              break;                              break;
1427                          }                          }
1428                      }                      }
# Line 1007  namespace LinuxSampler { namespace gig { Line 1467  namespace LinuxSampler { namespace gig {
1467      }      }
1468    
1469      /**      /**
1470       * Initialize the parameter sequence for the modulation destination given by       * Releases all voices on an engine channel. All voices will go into
1471       * by 'dst' with the constant value given by val.       * the release stage and thus it might take some time (e.g. dependant to
1472         * their envelope release time) until they actually die.
1473         *
1474         * @param pEngineChannel - engine channel on which all voices should be released
1475         * @param itReleaseEvent - event which caused this releasing of all voices
1476       */       */
1477      void Engine::ResetSynthesisParameters(Event::destination_t dst, float val) {      void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) {
1478          int maxsamples = pAudioOutputDevice->MaxSamplesPerCycle();          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1479          float* m = &pSynthesisParameters[dst][0];          while (iuiKey) {
1480          for (int i = 0; i < maxsamples; i += 4) {              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1481             m[i]   = val;              ++iuiKey;
1482             m[i+1] = val;              // append a 'release' event to the key's own event list
1483             m[i+2] = val;              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1484             m[i+3] = val;              if (itNewEvent) {
1485                    *itNewEvent = *itReleaseEvent; // copy original event (to the key's event list)
1486                    itNewEvent->Type = Event::type_release; // transform event type
1487                }
1488                else dmsg(1,("Event pool emtpy!\n"));
1489          }          }
1490      }      }
1491    
1492      float Engine::Volume() {      /**
1493          return GlobalVolume;       * Kills all voices on an engine channel as soon as possible. Voices
1494      }       * won't get into release state, their volume level will be ramped down
1495         * as fast as possible.
1496      void Engine::Volume(float f) {       *
1497          GlobalVolume = f;       * @param pEngineChannel - engine channel on which all voices should be killed
1498      }       * @param itKillEvent    - event which caused this killing of all voices
1499         */
1500      uint Engine::Channels() {      void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) {
1501          return 2;          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1502      }          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
1503            while (iuiKey != end) { // iterate through all active keys
1504      void Engine::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) {              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1505          AudioChannel* pChannel = pAudioOutputDevice->Channel(AudioDeviceChannel);              ++iuiKey;
1506          if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel));              RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
1507          switch (EngineAudioChannel) {              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
1508              case 0: // left output channel              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
1509                  pOutputLeft = pChannel->Buffer();                  itVoice->Kill(itKillEvent);
1510                  AudioDeviceChannelLeft = AudioDeviceChannel;                  --VoiceSpawnsLeft; //FIXME: just a temporary workaround, we should check the cause in StealVoice() instead
1511                  break;              }
             case 1: // right output channel  
                 pOutputRight = pChannel->Buffer();  
                 AudioDeviceChannelRight = AudioDeviceChannel;  
                 break;  
             default:  
                 throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));  
1512          }          }
1513      }      }
1514    
1515      int Engine::OutputChannel(uint EngineAudioChannel) {      /**
1516          switch (EngineAudioChannel) {       * Determines whether the specified voice should be released.
1517              case 0: // left channel       *
1518                  return AudioDeviceChannelLeft;       * @param pEngineChannel - The engine channel on which the voice should be checked
1519              case 1: // right channel       * @param Key - The key number
1520                  return AudioDeviceChannelRight;       * @returns true if the specified should be released, false otherwise.
1521              default:       */
1522                  throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));      bool Engine::ShouldReleaseVoice(EngineChannel* pEngineChannel, int Key) {
1523            if (pEngineChannel->SustainPedal) return false;
1524    
1525            if (pEngineChannel->SostenutoPedal) {
1526                for (int i = 0; i < SostenutoKeyCount; i++)
1527                    if (Key == SostenutoKeys[i]) return false;
1528          }          }
1529    
1530            return true;
1531      }      }
1532    
1533      uint Engine::VoiceCount() {      uint Engine::VoiceCount() {
# Line 1090  namespace LinuxSampler { namespace gig { Line 1559  namespace LinuxSampler { namespace gig {
1559      }      }
1560    
1561      String Engine::EngineName() {      String Engine::EngineName() {
1562          return "GigEngine";          return LS_GIG_ENGINE_NAME;
     }  
   
     String Engine::InstrumentFileName() {  
         return InstrumentFile;  
     }  
   
     int Engine::InstrumentIndex() {  
         return InstrumentIdx;  
     }  
   
     int Engine::InstrumentStatus() {  
         return InstrumentStat;  
1563      }      }
1564    
1565      String Engine::Description() {      String Engine::Description() {
# Line 1110  namespace LinuxSampler { namespace gig { Line 1567  namespace LinuxSampler { namespace gig {
1567      }      }
1568    
1569      String Engine::Version() {      String Engine::Version() {
1570          String s = "$Revision: 1.16 $";          String s = "$Revision: 1.62 $";
1571          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
1572      }      }
1573    
1574        // static constant initializers
1575        const float* Engine::VolumeCurve(InitVolumeCurve());
1576        const float* Engine::PanCurve(InitPanCurve());
1577        const float* Engine::CrossfadeCurve(InitCrossfadeCurve());
1578    
1579        float* Engine::InitVolumeCurve() {
1580            // line-segment approximation
1581            const float segments[] = {
1582                0, 0, 2, 0.0046, 16, 0.016, 31, 0.051, 45, 0.115, 54.5, 0.2,
1583                64.5, 0.39, 74, 0.74, 92, 1.03, 114, 1.94, 119.2, 2.2, 127, 2.2
1584            };
1585            return InitCurve(segments);
1586        }
1587    
1588        float* Engine::InitPanCurve() {
1589            // line-segment approximation
1590            const float segments[] = {
1591                0, 0, 1, 0,
1592                2, 0.05, 31.5, 0.7, 51, 0.851, 74.5, 1.12,
1593                127, 1.41, 128, 1.41
1594            };
1595            return InitCurve(segments, 129);
1596        }
1597    
1598        float* Engine::InitCrossfadeCurve() {
1599            // line-segment approximation
1600            const float segments[] = {
1601                0, 0, 1, 0.03, 10, 0.1, 51, 0.58, 127, 1
1602            };
1603            return InitCurve(segments);
1604        }
1605    
1606        float* Engine::InitCurve(const float* segments, int size) {
1607            float* y = new float[size];
1608            for (int x = 0 ; x < size ; x++) {
1609                if (x > segments[2]) segments += 2;
1610                y[x] = segments[1] + (x - segments[0]) *
1611                    (segments[3] - segments[1]) / (segments[2] - segments[0]);
1612            }
1613            return y;
1614        }
1615    
1616  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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