/[svn]/linuxsampler/trunk/src/engines/gig/Engine.cpp
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revision 361 by schoenebeck, Wed Feb 9 01:22:18 2005 UTC revision 1037 by schoenebeck, Tue Jan 23 20:03:22 2007 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
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) 2005-2007 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    
 #if defined(__APPLE__)  
 # include <stdlib.h>  
 #else  
 # include <malloc.h>  
 #endif  
   
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,false>(CONFIG_SYSEX_BUFFER_SIZE, 0);
101          pEventQueue        = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue        = new RingBuffer<Event,false>(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..."));              dmsg(1,("Stopping disk thread..."));
122              pDiskThread->StopThread();              pDiskThread->StopThread();
123              delete pDiskThread;              delete pDiskThread;
124              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
125          }          }
   
         if (pInstrument) Instruments.HandBack(pInstrument, this);  
   
         if (pGig)  delete pGig;  
         if (pRIFF) delete pRIFF;  
         for (uint i = 0; i < 128; i++) {  
             if (pMIDIKeyInfo[i].pActiveVoices) delete pMIDIKeyInfo[i].pActiveVoices;  
             if (pMIDIKeyInfo[i].pEvents)       delete pMIDIKeyInfo[i].pEvents;  
         }  
         for (uint i = 0; i < Event::destination_count; i++) {  
             if (pSynthesisEvents[i]) delete pSynthesisEvents[i];  
         }  
         if (pEvents)     delete pEvents;  
         if (pCCEvents)   delete pCCEvents;  
126          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
127          if (pEventPool)  delete pEventPool;          if (pEventPool)  delete pEventPool;
128          if (pVoicePool) {          if (pVoicePool) {
129                  pVoicePool->clear();              pVoicePool->clear();
130                  delete pVoicePool;              delete pVoicePool;
131          }          }
         if (pActiveKeys) delete pActiveKeys;  
         if (pSysexBuffer) delete pSysexBuffer;  
132          if (pEventGenerator) delete pEventGenerator;          if (pEventGenerator) delete pEventGenerator;
         if (pMainFilterParameters) delete[] pMainFilterParameters;  
         if (pBasicFilterParameters) delete[] pBasicFilterParameters;  
         if (pSynthesisParameters[0]) free(pSynthesisParameters[0]);  
133          if (pVoiceStealingQueue) delete pVoiceStealingQueue;          if (pVoiceStealingQueue) delete pVoiceStealingQueue;
134            if (pSysexBuffer) delete pSysexBuffer;
135            Unregister();
136      }      }
137    
138      void Engine::Enable() {      void Engine::Enable() {
# Line 140  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;  
         CurrentKeyDimension = 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 204  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  
      */  
     void Engine::LoadInstrument(const char* FileName, uint Instrument) {  
   
         DisableAndLock();  
   
         ResetInternal(); // reset engine  
   
         // free old instrument  
         if (pInstrument) {  
             // give old instrument back to instrument manager  
             Instruments.HandBack(pInstrument, this);  
         }  
   
         InstrumentFile = FileName;  
         InstrumentIdx = Instrument;  
         InstrumentStat = 0;  
   
         // delete all key groups  
         ActiveKeyGroups.clear();  
   
         // request gig instrument from instrument manager  
         try {  
             instrument_id_t instrid;  
             instrid.FileName    = FileName;  
             instrid.iInstrument = Instrument;  
             pInstrument = Instruments.Borrow(instrid, this);  
             if (!pInstrument) {  
                 InstrumentStat = -1;  
                 dmsg(1,("no instrument loaded!!!\n"));  
                 exit(EXIT_FAILURE);  
             }  
         }  
         catch (RIFF::Exception e) {  
             InstrumentStat = -2;  
             String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message;  
             throw LinuxSamplerException(msg);  
         }  
         catch (InstrumentResourceManagerException e) {  
             InstrumentStat = -3;  
             String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message();  
             throw LinuxSamplerException(msg);  
         }  
         catch (...) {  
             InstrumentStat = -4;  
             throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file.");  
         }  
   
         // rebuild ActiveKeyGroups map with key groups of current instrument  
         for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion())  
             if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL;  
   
         InstrumentStat = 100;  
   
         // inform audio driver for the need of two channels  
         try {  
             if (pAudioOutputDevice) pAudioOutputDevice->AcquireChannels(2); // gig Engine only stereo  
         }  
         catch (AudioOutputException e) {  
             String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();  
             throw LinuxSamplerException(msg);  
         }  
   
         Enable();  
     }  
   
     /**  
      * Will be called by the InstrumentResourceManager when the instrument  
      * we are currently using in this engine is going to be updated, so we  
      * can stop playback before that happens.  
206       */       */
207      void Engine::ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg) {      void Engine::ResetScaleTuning() {
208          dmsg(3,("gig::Engine: Received instrument update message.\n"));          memset(&ScaleTuning[0], 0x00, 12);
         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 318  namespace LinuxSampler { namespace gig { Line 228  namespace LinuxSampler { namespace gig {
228          }          }
229          catch (AudioOutputException e) {          catch (AudioOutputException e) {
230              String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();              String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();
231              throw LinuxSamplerException(msg);              throw Exception(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) {
# Line 340  namespace LinuxSampler { namespace gig { Line 257  namespace LinuxSampler { namespace gig {
257              delete this->pDiskThread;              delete this->pDiskThread;
258              dmsg(1,("OK\n"));              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 356  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]) free(pSynthesisParameters[0]);  
   
         #if defined(__APPLE__)  
         pSynthesisParameters[0] = (float *) malloc(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle());  
         #else  
         pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()));  
         #endif  
         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 385  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,false>::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      /**      /**
332       *  Let this engine proceed to render the given amount of sample points. The       * Let this engine proceed to render the given amount of sample points.
333       *  calculated audio data of all voices of this engine will be placed into       * The engine will iterate through all engine channels and render audio
334       *  the engine's audio sum buffer which has to be copied and eventually be       * for each engine channel independently. The calculated audio data of
335       *  converted to the appropriate value range by the audio output class (e.g.       * all voices of each engine channel will be placed into the audio sum
336       *  AlsaIO or JackIO) right after.       * buffers of the respective audio output device, connected to the
337         * respective engine channel.
338       *       *
339       *  @param Samples - number of sample points to be rendered       *  @param Samples - number of sample points to be rendered
340       *  @returns       0 on success       *  @returns       0 on success
341       */       */
342      int Engine::RenderAudio(uint Samples) {      int Engine::RenderAudio(uint Samples) {
343          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));          dmsg(7,("RenderAudio(Samples=%d)\n", Samples));
344    
345          // return if no instrument loaded or engine disabled          // return if engine disabled
346          if (EngineDisabled.Pop()) {          if (EngineDisabled.Pop()) {
347              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));
348              return 0;              return 0;
349          }          }
         if (!pInstrument) {  
             dmsg(5,("gig::Engine: no instrument loaded\n"));  
             return 0;  
         }  
   
350    
351          // update time of start and end of this audio fragment (as events' time stamps relate to this)          // update time of start and end of this audio fragment (as events' time stamps relate to this)
352          pEventGenerator->UpdateFragmentTime(Samples);          pEventGenerator->UpdateFragmentTime(Samples);
353    
354            // We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned
355            // in each audio fragment. All subsequent request for spawning new
356            // voices in the same audio fragment will be ignored.
357            VoiceSpawnsLeft = CONFIG_MAX_VOICES;
358    
359            // get all events from the engine's global input event queue which belong to the current fragment
360            // (these are usually just SysEx messages)
361            ImportEvents(Samples);
362    
363          // empty the event lists for the new fragment          // process engine global events (these are currently only MIDI System Exclusive messages)
         pEvents->clear();  
         pCCEvents->clear();  
         for (uint i = 0; i < Event::destination_count; i++) {  
             pSynthesisEvents[i]->clear();  
         }  
364          {          {
365              RTList<uint>::Iterator iuiKey = pActiveKeys->first();              RTList<Event>::Iterator itEvent = pGlobalEvents->first();
366              RTList<uint>::Iterator end    = pActiveKeys->end();              RTList<Event>::Iterator end     = pGlobalEvents->end();
367              for(; iuiKey != end; ++iuiKey) {              for (; itEvent != end; ++itEvent) {
368                  pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key                  switch (itEvent->Type) {
369                        case Event::type_sysex:
370                            dmsg(5,("Engine: Sysex received\n"));
371                            ProcessSysex(itEvent);
372                            break;
373                    }
374              }              }
375          }          }
376    
377            // reset internal voice counter (just for statistic of active voices)
378            ActiveVoiceCountTemp = 0;
379    
380          // get all events from the input event queue which belong to the current fragment          // handle events on all engine channels
381          {          for (int i = 0; i < engineChannels.size(); i++) {
382              RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
383              Event* pEvent;              ProcessEvents(engineChannels[i], Samples);
384              while (true) {          }
385                  // get next event from input event queue  
386                  if (!(pEvent = eventQueueReader.pop())) break;          // render all 'normal', active voices on all engine channels
387                  // if younger event reached, ignore that and all subsequent ones for now          for (int i = 0; i < engineChannels.size(); i++) {
388                  if (pEvent->FragmentPos() >= Samples) {              if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
389                      eventQueueReader--;              RenderActiveVoices(engineChannels[i], Samples);
390                      dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples));          }
391                      pEvent->ResetFragmentPos();  
392                      break;          // now that all ordinary voices on ALL engine channels are rendered, render new stolen voices
393                  }          RenderStolenVoices(Samples);
394                  // copy event to internal event list  
395                  if (pEvents->poolIsEmpty()) {          // handle audio routing for engine channels with FX sends
396                      dmsg(1,("Event pool emtpy!\n"));          for (int i = 0; i < engineChannels.size(); i++) {
397                      break;              if (engineChannels[i]->fxSends.empty()) continue; // ignore if no FX sends
398                  }              RouteAudio(engineChannels[i], Samples);
                 *pEvents->allocAppend() = *pEvent;  
             }  
             eventQueueReader.free(); // free all copied events from input queue  
399          }          }
400    
401            // handle cleanup on all engine channels for the next audio fragment
402            for (int i = 0; i < engineChannels.size(); i++) {
403                if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded
404                PostProcess(engineChannels[i]);
405            }
406    
407    
408            // empty the engine's event list for the next audio fragment
409            ClearEventLists();
410    
411            // reset voice stealing for the next audio fragment
412            pVoiceStealingQueue->clear();
413    
414            // just some statistics about this engine instance
415            ActiveVoiceCount = ActiveVoiceCountTemp;
416            if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
417    
418            FrameTime += Samples;
419    
420            return 0;
421        }
422    
423        /**
424         * Dispatch and handle all events in this audio fragment for the given
425         * engine channel.
426         *
427         * @param pEngineChannel - engine channel on which events should be
428         *                         processed
429         * @param Samples        - amount of sample points to be processed in
430         *                         this audio fragment cycle
431         */
432        void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) {
433            // get all events from the engine channels's input event queue which belong to the current fragment
434            // (these are the common events like NoteOn, NoteOff, ControlChange, etc.)
435            pEngineChannel->ImportEvents(Samples);
436    
437          // process events          // process events
438          {          {
439              RTList<Event>::Iterator itEvent = pEvents->first();              RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first();
440              RTList<Event>::Iterator end     = pEvents->end();              RTList<Event>::Iterator end     = pEngineChannel->pEvents->end();
441              for (; itEvent != end; ++itEvent) {              for (; itEvent != end; ++itEvent) {
442                  switch (itEvent->Type) {                  switch (itEvent->Type) {
443                      case Event::type_note_on:                      case Event::type_note_on:
444                          dmsg(5,("Engine: Note on received\n"));                          dmsg(5,("Engine: Note on received\n"));
445                          ProcessNoteOn(itEvent);                          ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent);
446                          break;                          break;
447                      case Event::type_note_off:                      case Event::type_note_off:
448                          dmsg(5,("Engine: Note off received\n"));                          dmsg(5,("Engine: Note off received\n"));
449                          ProcessNoteOff(itEvent);                          ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent);
450                          break;                          break;
451                      case Event::type_control_change:                      case Event::type_control_change:
452                          dmsg(5,("Engine: MIDI CC received\n"));                          dmsg(5,("Engine: MIDI CC received\n"));
453                          ProcessControlChange(itEvent);                          ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent);
454                          break;                          break;
455                      case Event::type_pitchbend:                      case Event::type_pitchbend:
456                          dmsg(5,("Engine: Pitchbend received\n"));                          dmsg(5,("Engine: Pitchbend received\n"));
457                          ProcessPitchbend(itEvent);                          ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent);
                         break;  
                     case Event::type_sysex:  
                         dmsg(5,("Engine: Sysex received\n"));  
                         ProcessSysex(itEvent);  
458                          break;                          break;
459                  }                  }
460              }              }
461          }          }
462    
463            // reset voice stealing for the next engine channel (or next audio fragment)
464            itLastStolenVoice         = RTList<Voice>::Iterator();
465            itLastStolenVoiceGlobally = RTList<Voice>::Iterator();
466            iuiLastStolenKey          = RTList<uint>::Iterator();
467            iuiLastStolenKeyGlobally  = RTList<uint>::Iterator();
468            pLastStolenChannel        = NULL;
469        }
470    
471          int active_voices = 0;      /**
472         * Render all 'normal' voices (that is voices which were not stolen in
473          // render audio from all active voices       * this fragment) on the given engine channel.
474          {       *
475              RTList<uint>::Iterator iuiKey = pActiveKeys->first();       * @param pEngineChannel - engine channel on which audio should be
476              RTList<uint>::Iterator end    = pActiveKeys->end();       *                         rendered
477              while (iuiKey != end) { // iterate through all active keys       * @param Samples        - amount of sample points to be rendered in
478                  midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];       *                         this audio fragment cycle
479                  ++iuiKey;       */
480        void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) {
481            #if !CONFIG_PROCESS_MUTED_CHANNELS
482            if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
483            #endif
484    
485                  RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
486                  RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
487                  for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key          while (iuiKey != end) { // iterate through all active keys
488                      // now render current voice              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
489                      itVoice->Render(Samples);              ++iuiKey;
490                      if (itVoice->IsActive()) active_voices++; // still active  
491                      else { // voice reached end, is now inactive              RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
492                          FreeVoice(itVoice); // remove voice from the list of active voices              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
493                      }              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
494                    // now render current voice
495                    itVoice->Render(Samples);
496                    if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active
497                    else { // voice reached end, is now inactive
498                        FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices
499                  }                  }
500              }              }
501          }          }
502        }
503    
504        /**
505         * Render all stolen voices (only voices which were stolen in this
506         * fragment) on the given engine channel. Stolen voices are rendered
507         * after all normal voices have been rendered; this is needed to render
508         * audio of those voices which were selected for voice stealing until
509         * the point were the stealing (that is the take over of the voice)
510         * actually happened.
511         *
512         * @param pEngineChannel - engine channel on which audio should be
513         *                         rendered
514         * @param Samples        - amount of sample points to be rendered in
515         *                         this audio fragment cycle
516         */
517        void Engine::RenderStolenVoices(uint Samples) {
518            RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();
519            RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
520            for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
521                EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
522                Pool<Voice>::Iterator itNewVoice =
523                    LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false);
524                if (itNewVoice) {
525                    itNewVoice->Render(Samples);
526                    if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active
527                    else { // voice reached end, is now inactive
528                        FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices
529                    }
530                }
531                else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));
532    
533          // now render all postponed voices from voice stealing              // we need to clear the key's event list explicitly here in case key was never active
534                midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key];
535                pKey->VoiceTheftsQueued--;
536                if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear();
537            }
538        }
539    
540        /**
541         * Will be called in case the respective engine channel sports FX send
542         * channels. In this particular case, engine channel local buffers are
543         * used to render and mix all voices to. This method is responsible for
544         * copying the audio data from those local buffers to the master audio
545         * output channels as well as to the FX send audio output channels with
546         * their respective FX send levels.
547         *
548         * @param pEngineChannel - engine channel from which audio should be
549         *                         routed
550         * @param Samples        - amount of sample points to be routed in
551         *                         this audio fragment cycle
552         */
553        void Engine::RouteAudio(EngineChannel* pEngineChannel, uint Samples) {
554            // route master signal
555          {          {
556              RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first();              AudioChannel* pDstL = pAudioOutputDevice->Channel(pEngineChannel->AudioDeviceChannelLeft);
557              RTList<Event>::Iterator end               = pVoiceStealingQueue->end();              AudioChannel* pDstR = pAudioOutputDevice->Channel(pEngineChannel->AudioDeviceChannelRight);
558              for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {              pEngineChannel->pChannelLeft->MixTo(pDstL, Samples);
559                  Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false);              pEngineChannel->pChannelRight->MixTo(pDstR, Samples);
560                  if (itNewVoice) {          }
561                      for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) {          // route FX send signal
562                          itNewVoice->Render(Samples);          {
563                          if (itNewVoice->IsActive()) active_voices++; // still active              for (int iFxSend = 0; iFxSend < pEngineChannel->GetFxSendCount(); iFxSend++) {
564                          else { // voice reached end, is now inactive                  FxSend* pFxSend = pEngineChannel->GetFxSend(iFxSend);
565                              FreeVoice(itNewVoice); // remove voice from the list of active voices                  // left channel
566                          }                  const int iDstL = pFxSend->DestinationChannel(0);
567                      }                  if (iDstL < 0) {
568                        dmsg(1,("Engine::RouteAudio() Error: invalid FX send (L) destination channel"));
569                    } else {
570                        AudioChannel* pDstL = pAudioOutputDevice->Channel(iDstL);
571                        if (!pDstL) {
572                            dmsg(1,("Engine::RouteAudio() Error: invalid FX send (L) destination channel"));
573                        } else pEngineChannel->pChannelLeft->MixTo(pDstL, Samples, pFxSend->Level());
574                    }
575                    // right channel
576                    const int iDstR = pFxSend->DestinationChannel(1);
577                    if (iDstR < 0) {
578                        dmsg(1,("Engine::RouteAudio() Error: invalid FX send (R) destination channel"));
579                    } else {
580                        AudioChannel* pDstR = pAudioOutputDevice->Channel(iDstR);
581                        if (!pDstR) {
582                            dmsg(1,("Engine::RouteAudio() Error: invalid FX send (R) destination channel"));
583                        } else pEngineChannel->pChannelRight->MixTo(pDstR, Samples, pFxSend->Level());
584                  }                  }
                 else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n"));  
585              }              }
586          }          }
587          // reset voice stealing for the new fragment          // reset buffers with silence (zero out) for the next audio cycle
588          pVoiceStealingQueue->clear();          pEngineChannel->pChannelLeft->Clear();
589          itLastStolenVoice = RTList<Voice>::Iterator();          pEngineChannel->pChannelRight->Clear();
590          iuiLastStolenKey  = RTList<uint>::Iterator();      }
   
591    
592        /**
593         * Free all keys which have turned inactive in this audio fragment, from
594         * the list of active keys and clear all event lists on that engine
595         * channel.
596         *
597         * @param pEngineChannel - engine channel to cleanup
598         */
599        void Engine::PostProcess(EngineChannel* pEngineChannel) {
600          // free all keys which have no active voices left          // free all keys which have no active voices left
601          {          {
602              RTList<uint>::Iterator iuiKey = pActiveKeys->first();              RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
603              RTList<uint>::Iterator end    = pActiveKeys->end();              RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
604              while (iuiKey != end) { // iterate through all active keys              while (iuiKey != end) { // iterate through all active keys
605                  midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                  midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
606                  ++iuiKey;                  ++iuiKey;
607                  if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey);                  if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey);
608                  #if DEVMODE                  #if CONFIG_DEVMODE
609                  else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging)                  else { // just a sanity check for debugging
610                      RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();                      RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
611                      RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();                      RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
612                      for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key                      for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
# Line 560  namespace LinuxSampler { namespace gig { Line 615  namespace LinuxSampler { namespace gig {
615                          }                          }
616                      }                      }
617                  }                  }
618                  #endif // DEVMODE                  #endif // CONFIG_DEVMODE
619              }              }
620          }          }
621    
622            // empty the engine channel's own event lists
623          // write that to the disk thread class so that it can print it          pEngineChannel->ClearEventLists();
         // on the console for debugging purposes  
         ActiveVoiceCount = active_voices;  
         if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;  
   
   
         return 0;  
     }  
   
     /**  
      *  Will be called by the MIDIIn Thread to let the audio thread trigger a new  
      *  voice for the given key.  
      *  
      *  @param Key      - MIDI key number of the triggered key  
      *  @param Velocity - MIDI velocity value of the triggered key  
      */  
     void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) {  
         Event event               = pEventGenerator->CreateEvent();  
         event.Type                = Event::type_note_on;  
         event.Param.Note.Key      = Key;  
         event.Param.Note.Velocity = Velocity;  
         if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);  
         else dmsg(1,("Engine: Input event queue full!"));  
     }  
   
     /**  
      *  Will be called by the MIDIIn Thread to signal the audio thread to release  
      *  voice(s) on the given key.  
      *  
      *  @param Key      - MIDI key number of the released key  
      *  @param Velocity - MIDI release velocity value of the released key  
      */  
     void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) {  
         Event event               = pEventGenerator->CreateEvent();  
         event.Type                = Event::type_note_off;  
         event.Param.Note.Key      = Key;  
         event.Param.Note.Velocity = Velocity;  
         if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);  
         else dmsg(1,("Engine: Input event queue full!"));  
     }  
   
     /**  
      *  Will be called by the MIDIIn Thread to signal the audio thread to change  
      *  the pitch value for all voices.  
      *  
      *  @param Pitch - MIDI pitch value (-8192 ... +8191)  
      */  
     void Engine::SendPitchbend(int Pitch) {  
         Event event             = pEventGenerator->CreateEvent();  
         event.Type              = Event::type_pitchbend;  
         event.Param.Pitch.Pitch = Pitch;  
         if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);  
         else dmsg(1,("Engine: Input event queue full!"));  
     }  
   
     /**  
      *  Will be called by the MIDIIn Thread to signal the audio thread that a  
      *  continuous controller value has changed.  
      *  
      *  @param Controller - MIDI controller number of the occured control change  
      *  @param Value      - value of the control change  
      */  
     void Engine::SendControlChange(uint8_t Controller, uint8_t Value) {  
         Event event               = pEventGenerator->CreateEvent();  
         event.Type                = Event::type_control_change;  
         event.Param.CC.Controller = Controller;  
         event.Param.CC.Value      = Value;  
         if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event);  
         else dmsg(1,("Engine: Input event queue full!"));  
624      }      }
625    
626      /**      /**
# Line 647  namespace LinuxSampler { namespace gig { Line 634  namespace LinuxSampler { namespace gig {
634          Event event             = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
635          event.Type              = Event::type_sysex;          event.Type              = Event::type_sysex;
636          event.Param.Sysex.Size  = Size;          event.Param.Sysex.Size  = Size;
637            event.pEngineChannel    = NULL; // as Engine global event
638          if (pEventQueue->write_space() > 0) {          if (pEventQueue->write_space() > 0) {
639              if (pSysexBuffer->write_space() >= Size) {              if (pSysexBuffer->write_space() >= Size) {
640                  // copy sysex data to input buffer                  // copy sysex data to input buffer
# Line 662  namespace LinuxSampler { namespace gig { Line 650  namespace LinuxSampler { namespace gig {
650                  // finally place sysex event into input event queue                  // finally place sysex event into input event queue
651                  pEventQueue->push(&event);                  pEventQueue->push(&event);
652              }              }
653              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));
654          }          }
655          else dmsg(1,("Engine: Input event queue full!"));          else dmsg(1,("Engine: Input event queue full!"));
656      }      }
# Line 670  namespace LinuxSampler { namespace gig { Line 658  namespace LinuxSampler { namespace gig {
658      /**      /**
659       *  Assigns and triggers a new voice for the respective MIDI key.       *  Assigns and triggers a new voice for the respective MIDI key.
660       *       *
661         *  @param pEngineChannel - engine channel on which this event occured on
662       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
663       */       */
664      void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) {      void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
665            #if !CONFIG_PROCESS_MUTED_CHANNELS
666            if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
667            #endif
668    
669          const int key = itNoteOnEvent->Param.Note.Key;          const int key = itNoteOnEvent->Param.Note.Key;
670            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];
671    
672          // Change key dimension value if key is in keyswitching area          // move note on event to the key's own event list
673          if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);
             CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) /  
                 (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);  
674    
675          midi_key_info_t* pKey = &pMIDIKeyInfo[key];          // if Solo Mode then kill all already active voices
676            if (pEngineChannel->SoloMode) {
677                Pool<uint>::Iterator itYoungestKey = pEngineChannel->pActiveKeys->last();
678                if (itYoungestKey) {
679                    const int iYoungestKey = *itYoungestKey;
680                    const midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[iYoungestKey];
681                    if (pOtherKey->Active) {
682                        // get final portamento position of currently active voice
683                        if (pEngineChannel->PortamentoMode) {
684                            RTList<Voice>::Iterator itVoice = pOtherKey->pActiveVoices->last();
685                            if (itVoice) itVoice->UpdatePortamentoPos(itNoteOnEventOnKeyList);
686                        }
687                        // kill all voices on the (other) key
688                        RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
689                        RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
690                        for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
691                            if (itVoiceToBeKilled->Type != Voice::type_release_trigger)
692                                itVoiceToBeKilled->Kill(itNoteOnEventOnKeyList);
693                        }
694                    }
695                }
696                // set this key as 'currently active solo key'
697                pEngineChannel->SoloKey = key;
698            }
699    
700            // Change key dimension value if key is in keyswitching area
701            {
702                const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument;
703                if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high)
704                    pEngineChannel->CurrentKeyDimension = float(key - pInstrument->DimensionKeyRange.low) /
705                        (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1);
706            }
707    
708          pKey->KeyPressed = true; // the MIDI key was now pressed down          pKey->KeyPressed = true; // the MIDI key was now pressed down
709            pKey->Velocity   = itNoteOnEventOnKeyList->Param.Note.Velocity;
710            pKey->NoteOnTime = FrameTime + itNoteOnEventOnKeyList->FragmentPos(); // will be used to calculate note length
711    
712          // cancel release process of voices on this key if needed          // cancel release process of voices on this key if needed
713          if (pKey->Active && !SustainPedal) {          if (pKey->Active && !pEngineChannel->SustainPedal) {
714              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();              RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend();
715              if (itCancelReleaseEvent) {              if (itCancelReleaseEvent) {
716                  *itCancelReleaseEvent = *itNoteOnEvent;                  // copy event                  *itCancelReleaseEvent = *itNoteOnEventOnKeyList;         // copy event
717                  itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type                  itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type
718              }              }
719              else dmsg(1,("Event pool emtpy!\n"));              else dmsg(1,("Event pool emtpy!\n"));
720          }          }
721    
722          // move note on event to the key's own event list          // allocate and trigger new voice(s) for the key
723          RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents);          {
724                // first, get total amount of required voices (dependant on amount of layers)
725                ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key);
726                if (pRegion) {
727                    int voicesRequired = pRegion->Layers;
728                    // now launch the required amount of voices
729                    for (int i = 0; i < voicesRequired; i++)
730                        LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true, true);
731                }
732            }
733    
734            // if neither a voice was spawned or postponed then remove note on event from key again
735            if (!pKey->Active && !pKey->VoiceTheftsQueued)
736                pKey->pEvents->free(itNoteOnEventOnKeyList);
737    
738          // allocate and trigger a new voice for the key          if (!pEngineChannel->SoloMode || pEngineChannel->PortamentoPos < 0.0f) pEngineChannel->PortamentoPos = (float) key;
739          LaunchVoice(itNoteOnEventOnKeyList, 0, false, true);          pKey->RoundRobinIndex++;
740      }      }
741    
742      /**      /**
# Line 708  namespace LinuxSampler { namespace gig { Line 745  namespace LinuxSampler { namespace gig {
745       *  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.
746       *  due to completion of sample playback).       *  due to completion of sample playback).
747       *       *
748         *  @param pEngineChannel - engine channel on which this event occured on
749       *  @param itNoteOffEvent - key, velocity and time stamp of the event       *  @param itNoteOffEvent - key, velocity and time stamp of the event
750       */       */
751      void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) {      void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) {
752          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key];          #if !CONFIG_PROCESS_MUTED_CHANNELS
753            if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
754            #endif
755    
756            const int iKey = itNoteOffEvent->Param.Note.Key;
757            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey];
758          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
759    
         // release voices on this key if needed  
         if (pKey->Active && !SustainPedal) {  
             itNoteOffEvent->Type = Event::type_release; // transform event type  
         }  
   
760          // move event to the key's own event list          // move event to the key's own event list
761          RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);          RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents);
762    
763          // spawn release triggered voice(s) if needed          bool bShouldRelease = pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEventOnKeyList->Param.Note.Key);
764          if (pKey->ReleaseTrigger) {  
765              LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples          // in case Solo Mode is enabled, kill all voices on this key and respawn a voice on the highest pressed key (if any)
766              pKey->ReleaseTrigger = false;          if (pEngineChannel->SoloMode) { //TODO: this feels like too much code just for handling solo mode :P
767                bool bOtherKeysPressed = false;
768                if (iKey == pEngineChannel->SoloKey) {
769                    pEngineChannel->SoloKey = -1;
770                    // if there's still a key pressed down, respawn a voice (group) on the highest key
771                    for (int i = 127; i > 0; i--) {
772                        midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[i];
773                        if (pOtherKey->KeyPressed) {
774                            bOtherKeysPressed = true;
775                            // make the other key the new 'currently active solo key'
776                            pEngineChannel->SoloKey = i;
777                            // get final portamento position of currently active voice
778                            if (pEngineChannel->PortamentoMode) {
779                                RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first();
780                                if (itVoice) itVoice->UpdatePortamentoPos(itNoteOffEventOnKeyList);
781                            }
782                            // create a pseudo note on event
783                            RTList<Event>::Iterator itPseudoNoteOnEvent = pOtherKey->pEvents->allocAppend();
784                            if (itPseudoNoteOnEvent) {
785                                // copy event
786                                *itPseudoNoteOnEvent = *itNoteOffEventOnKeyList;
787                                // transform event to a note on event
788                                itPseudoNoteOnEvent->Type                = Event::type_note_on;
789                                itPseudoNoteOnEvent->Param.Note.Key      = i;
790                                itPseudoNoteOnEvent->Param.Note.Velocity = pOtherKey->Velocity;
791                                // allocate and trigger new voice(s) for the other key
792                                {
793                                    // first, get total amount of required voices (dependant on amount of layers)
794                                    ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(i);
795                                    if (pRegion) {
796                                        int voicesRequired = pRegion->Layers;
797                                        // now launch the required amount of voices
798                                        for (int iLayer = 0; iLayer < voicesRequired; iLayer++)
799                                            LaunchVoice(pEngineChannel, itPseudoNoteOnEvent, iLayer, false, true, false);
800                                    }
801                                }
802                                // if neither a voice was spawned or postponed then remove note on event from key again
803                                if (!pOtherKey->Active && !pOtherKey->VoiceTheftsQueued)
804                                    pOtherKey->pEvents->free(itPseudoNoteOnEvent);
805    
806                            } else dmsg(1,("Could not respawn voice, no free event left\n"));
807                            break; // done
808                        }
809                    }
810                }
811                if (bOtherKeysPressed) {
812                    if (pKey->Active) { // kill all voices on this key
813                        bShouldRelease = false; // no need to release, as we kill it here
814                        RTList<Voice>::Iterator itVoiceToBeKilled = pKey->pActiveVoices->first();
815                        RTList<Voice>::Iterator end               = pKey->pActiveVoices->end();
816                        for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
817                            if (itVoiceToBeKilled->Type != Voice::type_release_trigger)
818                                itVoiceToBeKilled->Kill(itNoteOffEventOnKeyList);
819                        }
820                    }
821                } else pEngineChannel->PortamentoPos = -1.0f;
822            }
823    
824            // if no solo mode (the usual case) or if solo mode and no other key pressed, then release voices on this key if needed
825            if (bShouldRelease) {
826                itNoteOffEventOnKeyList->Type = Event::type_release; // transform event type
827    
828                // spawn release triggered voice(s) if needed
829                if (pKey->ReleaseTrigger) {
830                    // first, get total amount of required voices (dependant on amount of layers)
831                    ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
832                    if (pRegion) {
833                        int voicesRequired = pRegion->Layers;
834    
835                        // MIDI note-on velocity is used instead of note-off velocity
836                        itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity;
837    
838                        // now launch the required amount of voices
839                        for (int i = 0; i < voicesRequired; i++)
840                            LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples
841                    }
842                    pKey->ReleaseTrigger = false;
843                }
844          }          }
845    
846            // if neither a voice was spawned or postponed on this key then remove note off event from key again
847            if (!pKey->Active && !pKey->VoiceTheftsQueued)
848                pKey->pEvents->free(itNoteOffEventOnKeyList);
849      }      }
850    
851      /**      /**
852       *  Moves pitchbend event from the general (input) event list to the pitch       *  Moves pitchbend event from the general (input) event list to the engine
853       *  event list.       *  channel's event list. It will actually processed later by the
854         *  respective voice.
855       *       *
856         *  @param pEngineChannel - engine channel on which this event occured on
857       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event       *  @param itPitchbendEvent - absolute pitch value and time stamp of the event
858       */       */
859      void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) {      void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) {
860          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]);  
861      }      }
862    
863      /**      /**
# Line 746  namespace LinuxSampler { namespace gig { Line 865  namespace LinuxSampler { namespace gig {
865       *  called by the ProcessNoteOn() method and by the voices itself       *  called by the ProcessNoteOn() method and by the voices itself
866       *  (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).
867       *       *
868         *  @param pEngineChannel      - engine channel on which this event occured on
869       *  @param itNoteOnEvent       - key, velocity and time stamp of the event       *  @param itNoteOnEvent       - key, velocity and time stamp of the event
870       *  @param iLayer              - layer index for the new voice (optional - only       *  @param iLayer              - layer index for the new voice (optional - only
871       *                               in case of layered sounds of course)       *                               in case of layered sounds of course)
# Line 754  namespace LinuxSampler { namespace gig { Line 874  namespace LinuxSampler { namespace gig {
874       *  @param VoiceStealing       - if voice stealing should be performed       *  @param VoiceStealing       - if voice stealing should be performed
875       *                               when there is no free voice       *                               when there is no free voice
876       *                               (optional, default = true)       *                               (optional, default = true)
877         *  @param HandleKeyGroupConflicts - if voices should be killed due to a
878         *                                   key group conflict
879       *  @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
880       *           if the voice wasn't triggered (for example when no region is       *           if the voice wasn't triggered (for example when no region is
881       *           defined for the given key).       *           defined for the given key).
882       */       */
883      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) {
884          midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];          int MIDIKey            = itNoteOnEvent->Param.Note.Key;
885            midi_key_info_t* pKey  = &pEngineChannel->pMIDIKeyInfo[MIDIKey];
886            ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(MIDIKey);
887    
888            // if nothing defined for this key
889            if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do
890    
891            // only mark the first voice of a layered voice (group) to be in a
892            // key group, so the layered voices won't kill each other
893            int iKeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0;
894    
895            // handle key group (a.k.a. exclusive group) conflicts
896            if (HandleKeyGroupConflicts) {
897                if (iKeyGroup) { // if this voice / key belongs to a key group
898                    uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[iKeyGroup];
899                    if (*ppKeyGroup) { // if there's already an active key in that key group
900                        midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup];
901                        // kill all voices on the (other) key
902                        RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first();
903                        RTList<Voice>::Iterator end               = pOtherKey->pActiveVoices->end();
904                        for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) {
905                            if (itVoiceToBeKilled->Type != Voice::type_release_trigger) {
906                                itVoiceToBeKilled->Kill(itNoteOnEvent);
907                                --VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict
908                            }
909                        }
910                    }
911                }
912            }
913    
914            Voice::type_t VoiceType = Voice::type_normal;
915    
916            // get current dimension values to select the right dimension region
917            //TODO: for stolen voices this dimension region selection block is processed twice, this should be changed
918            //FIXME: controller values for selecting the dimension region here are currently not sample accurate
919            uint DimValues[8] = { 0 };
920            for (int i = pRegion->Dimensions - 1; i >= 0; i--) {
921                switch (pRegion->pDimensionDefinitions[i].dimension) {
922                    case ::gig::dimension_samplechannel:
923                        DimValues[i] = 0; //TODO: we currently ignore this dimension
924                        break;
925                    case ::gig::dimension_layer:
926                        DimValues[i] = iLayer;
927                        break;
928                    case ::gig::dimension_velocity:
929                        DimValues[i] = itNoteOnEvent->Param.Note.Velocity;
930                        break;
931                    case ::gig::dimension_channelaftertouch:
932                        DimValues[i] = pEngineChannel->ControllerTable[128];
933                        break;
934                    case ::gig::dimension_releasetrigger:
935                        VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal;
936                        DimValues[i] = (uint) ReleaseTriggerVoice;
937                        break;
938                    case ::gig::dimension_keyboard:
939                        DimValues[i] = (uint) (pEngineChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones);
940                        break;
941                    case ::gig::dimension_roundrobin:
942                        DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on
943                        break;
944                    case ::gig::dimension_random:
945                        RandomSeed   = RandomSeed * 1103515245 + 12345; // classic pseudo random number generator
946                        DimValues[i] = (uint) RandomSeed >> (32 - pRegion->pDimensionDefinitions[i].bits); // highest bits are most random
947                        break;
948                    case ::gig::dimension_modwheel:
949                        DimValues[i] = pEngineChannel->ControllerTable[1];
950                        break;
951                    case ::gig::dimension_breath:
952                        DimValues[i] = pEngineChannel->ControllerTable[2];
953                        break;
954                    case ::gig::dimension_foot:
955                        DimValues[i] = pEngineChannel->ControllerTable[4];
956                        break;
957                    case ::gig::dimension_portamentotime:
958                        DimValues[i] = pEngineChannel->ControllerTable[5];
959                        break;
960                    case ::gig::dimension_effect1:
961                        DimValues[i] = pEngineChannel->ControllerTable[12];
962                        break;
963                    case ::gig::dimension_effect2:
964                        DimValues[i] = pEngineChannel->ControllerTable[13];
965                        break;
966                    case ::gig::dimension_genpurpose1:
967                        DimValues[i] = pEngineChannel->ControllerTable[16];
968                        break;
969                    case ::gig::dimension_genpurpose2:
970                        DimValues[i] = pEngineChannel->ControllerTable[17];
971                        break;
972                    case ::gig::dimension_genpurpose3:
973                        DimValues[i] = pEngineChannel->ControllerTable[18];
974                        break;
975                    case ::gig::dimension_genpurpose4:
976                        DimValues[i] = pEngineChannel->ControllerTable[19];
977                        break;
978                    case ::gig::dimension_sustainpedal:
979                        DimValues[i] = pEngineChannel->ControllerTable[64];
980                        break;
981                    case ::gig::dimension_portamento:
982                        DimValues[i] = pEngineChannel->ControllerTable[65];
983                        break;
984                    case ::gig::dimension_sostenutopedal:
985                        DimValues[i] = pEngineChannel->ControllerTable[66];
986                        break;
987                    case ::gig::dimension_softpedal:
988                        DimValues[i] = pEngineChannel->ControllerTable[67];
989                        break;
990                    case ::gig::dimension_genpurpose5:
991                        DimValues[i] = pEngineChannel->ControllerTable[80];
992                        break;
993                    case ::gig::dimension_genpurpose6:
994                        DimValues[i] = pEngineChannel->ControllerTable[81];
995                        break;
996                    case ::gig::dimension_genpurpose7:
997                        DimValues[i] = pEngineChannel->ControllerTable[82];
998                        break;
999                    case ::gig::dimension_genpurpose8:
1000                        DimValues[i] = pEngineChannel->ControllerTable[83];
1001                        break;
1002                    case ::gig::dimension_effect1depth:
1003                        DimValues[i] = pEngineChannel->ControllerTable[91];
1004                        break;
1005                    case ::gig::dimension_effect2depth:
1006                        DimValues[i] = pEngineChannel->ControllerTable[92];
1007                        break;
1008                    case ::gig::dimension_effect3depth:
1009                        DimValues[i] = pEngineChannel->ControllerTable[93];
1010                        break;
1011                    case ::gig::dimension_effect4depth:
1012                        DimValues[i] = pEngineChannel->ControllerTable[94];
1013                        break;
1014                    case ::gig::dimension_effect5depth:
1015                        DimValues[i] = pEngineChannel->ControllerTable[95];
1016                        break;
1017                    case ::gig::dimension_none:
1018                        std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush;
1019                        break;
1020                    default:
1021                        std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;
1022                }
1023            }
1024            ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
1025    
1026            // no need to continue if sample is silent
1027            if (!pDimRgn->pSample || !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator();
1028    
1029          // allocate a new voice for the key          // allocate a new voice for the key
1030          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();          Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend();
1031          if (itNewVoice) {          if (itNewVoice) {
1032              // launch the new voice              // launch the new voice
1033              if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) {              if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pDimRgn, VoiceType, iKeyGroup) < 0) {
1034                  dmsg(4,("Voice not triggered\n"));                  dmsg(4,("Voice not triggered\n"));
1035                  pKey->pActiveVoices->free(itNewVoice);                  pKey->pActiveVoices->free(itNewVoice);
1036              }              }
1037              else { // on success              else { // on success
1038                  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);  
                         }  
                     }  
                 }  
1039                  if (!pKey->Active) { // mark as active key                  if (!pKey->Active) { // mark as active key
1040                      pKey->Active = true;                      pKey->Active = true;
1041                      pKey->itSelf = pActiveKeys->allocAppend();                      pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend();
1042                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;                      *pKey->itSelf = itNoteOnEvent->Param.Note.Key;
1043                  }                  }
1044                  if (itNewVoice->KeyGroup) {                  if (itNewVoice->KeyGroup) {
1045                        uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup];
1046                      *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
1047                  }                  }
1048                  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 796  namespace LinuxSampler { namespace gig { Line 1050  namespace LinuxSampler { namespace gig {
1050              }              }
1051          }          }
1052          else if (VoiceStealing) {          else if (VoiceStealing) {
1053              // first, get total amount of required voices (dependant on amount of layers)              // try to steal one voice
1054              ::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key);              int result = StealVoice(pEngineChannel, itNoteOnEvent);
1055              if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed              if (!result) { // voice stolen successfully
1056              int voicesRequired = pRegion->Layers;                  // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died
1057                    RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();
1058              // now steal the (remaining) amount of voices                  if (itStealEvent) {
1059              for (int i = iLayer; i < voicesRequired; i++)                      *itStealEvent = *itNoteOnEvent; // copy event
1060                  StealVoice(itNoteOnEvent);                      itStealEvent->Param.Note.Layer = iLayer;
1061                        itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;
1062              // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died                      pKey->VoiceTheftsQueued++;
1063              RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend();                  }
1064              if (itStealEvent) {                  else dmsg(1,("Voice stealing queue full!\n"));
                 *itStealEvent = *itNoteOnEvent; // copy event  
                 itStealEvent->Param.Note.Layer = iLayer;  
                 itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice;  
1065              }              }
             else dmsg(1,("Voice stealing queue full!\n"));  
1066          }          }
1067    
1068          return Pool<Voice>::Iterator(); // no free voice or error          return Pool<Voice>::Iterator(); // no free voice or error
# Line 824  namespace LinuxSampler { namespace gig { Line 1074  namespace LinuxSampler { namespace gig {
1074       *  voice stealing and postpone the note-on event until the selected       *  voice stealing and postpone the note-on event until the selected
1075       *  voice actually died.       *  voice actually died.
1076       *       *
1077         *  @param pEngineChannel - engine channel on which this event occured on
1078       *  @param itNoteOnEvent - key, velocity and time stamp of the event       *  @param itNoteOnEvent - key, velocity and time stamp of the event
1079         *  @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing
1080       */       */
1081      void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) {      int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) {
1082            if (VoiceSpawnsLeft <= 0) {
1083                dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n"));
1084                return -1;
1085            }
1086          if (!pEventPool->poolIsEmpty()) {          if (!pEventPool->poolIsEmpty()) {
1087    
1088              RTList<uint>::Iterator  iuiOldestKey;              RTList<Voice>::Iterator itSelectedVoice;
             RTList<Voice>::Iterator itOldestVoice;  
1089    
1090              // Select one voice for voice stealing              // Select one voice for voice stealing
1091              switch (VOICE_STEAL_ALGORITHM) {              switch (CONFIG_VOICE_STEAL_ALGO) {
1092    
1093                  // try to pick the oldest voice on the key where the new                  // try to pick the oldest voice on the key where the new
1094                  // voice should be spawned, if there is no voice on that                  // voice should be spawned, if there is no voice on that
1095                  // key, or no voice left to kill there, then procceed with                  // key, or no voice left to kill, then procceed with
1096                  // 'oldestkey' algorithm                  // 'oldestkey' algorithm
1097                  case voice_steal_algo_keymask: {                  case voice_steal_algo_oldestvoiceonkey: {
1098                      midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];                      midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key];
1099                      if (itLastStolenVoice) {                      itSelectedVoice = pSelectedKey->pActiveVoices->first();
1100                          itOldestVoice = itLastStolenVoice;                      // proceed iterating if voice was created in this fragment cycle
1101                          ++itOldestVoice;                      while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
1102                      }                      // if we haven't found a voice then proceed with algorithm 'oldestkey'
1103                      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  
                     }  
1104                  } // no break - intentional !                  } // no break - intentional !
1105    
1106                  // try to pick the oldest voice on the oldest active key                  // try to pick the oldest voice on the oldest active key
1107                  // (caution: must stay after 'keymask' algorithm !)                  // from the same engine channel
1108                    // (caution: must stay after 'oldestvoiceonkey' algorithm !)
1109                  case voice_steal_algo_oldestkey: {                  case voice_steal_algo_oldestkey: {
1110                      if (itLastStolenVoice) {                      // if we already stole in this fragment, try to proceed on same key
1111                          midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey];                      if (this->itLastStolenVoice) {
1112                          itOldestVoice = itLastStolenVoice;                          itSelectedVoice = this->itLastStolenVoice;
1113                          ++itOldestVoice;                          do {
1114                          if (!itOldestVoice) {                              ++itSelectedVoice;
1115                              iuiOldestKey = iuiLastStolenKey;                          } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
1116                              ++iuiOldestKey;                          // found a "stealable" voice ?
1117                              if (iuiOldestKey) {                          if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1118                                  midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];                              // remember which voice we stole, so we can simply proceed on next voice stealing
1119                                  itOldestVoice = pOldestKey->pActiveVoices->first();                              this->itLastStolenVoice = itSelectedVoice;
1120                              }                              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;  
                             }  
1121                          }                          }
                         else iuiOldestKey = iuiLastStolenKey;  
1122                      }                      }
1123                      else { // no voice stolen in this audio fragment cycle yet                      // get (next) oldest key
1124                          iuiOldestKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first();
1125                          midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey];                      while (iuiSelectedKey) {
1126                          itOldestVoice = pOldestKey->pActiveVoices->first();                          midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey];
1127                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
1128                            // proceed iterating if voice was created in this fragment cycle
1129                            while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
1130                            // found a "stealable" voice ?
1131                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1132                                // remember which voice on which key we stole, so we can simply proceed on next voice stealing
1133                                this->iuiLastStolenKey  = iuiSelectedKey;
1134                                this->itLastStolenVoice = itSelectedVoice;
1135                                break; // selection succeeded
1136                            }
1137                            ++iuiSelectedKey; // get next oldest key
1138                      }                      }
1139                      break;                      break;
1140                  }                  }
# Line 887  namespace LinuxSampler { namespace gig { Line 1143  namespace LinuxSampler { namespace gig {
1143                  case voice_steal_algo_none:                  case voice_steal_algo_none:
1144                  default: {                  default: {
1145                      dmsg(1,("No free voice (voice stealing disabled)!\n"));                      dmsg(1,("No free voice (voice stealing disabled)!\n"));
1146                      return;                      return -1;
1147                  }                  }
1148              }              }
1149    
1150              //FIXME: can be removed, just a sanity check for debugging              // if we couldn't steal a voice from the same engine channel then
1151              if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));              // steal oldest voice on the oldest key from any other engine channel
1152                // (the smaller engine channel number, the higher priority)
1153                if (!itSelectedVoice || !itSelectedVoice->IsStealable()) {
1154                    EngineChannel* pSelectedChannel;
1155                    int            iChannelIndex;
1156                    // select engine channel
1157                    if (pLastStolenChannel) {
1158                        pSelectedChannel = pLastStolenChannel;
1159                        iChannelIndex    = pSelectedChannel->iEngineIndexSelf;
1160                    } else { // pick the engine channel followed by this engine channel
1161                        iChannelIndex    = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size();
1162                        pSelectedChannel = engineChannels[iChannelIndex];
1163                    }
1164    
1165                    // if we already stole in this fragment, try to proceed on same key
1166                    if (this->itLastStolenVoiceGlobally) {
1167                        itSelectedVoice = this->itLastStolenVoiceGlobally;
1168                        do {
1169                            ++itSelectedVoice;
1170                        } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle
1171                    }
1172    
1173                    #if CONFIG_DEVMODE
1174                    EngineChannel* pBegin = pSelectedChannel; // to detect endless loop
1175                    #endif // CONFIG_DEVMODE
1176    
1177                    // did we find a 'stealable' voice?
1178                    if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1179                        // remember which voice we stole, so we can simply proceed on next voice stealing
1180                        this->itLastStolenVoiceGlobally = itSelectedVoice;
1181                    } else while (true) { // iterate through engine channels
1182                        // get (next) oldest key
1183                        RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKeyGlobally) ? ++this->iuiLastStolenKeyGlobally : pSelectedChannel->pActiveKeys->first();
1184                        this->iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); // to prevent endless loop (see line above)
1185                        while (iuiSelectedKey) {
1186                            midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey];
1187                            itSelectedVoice = pSelectedKey->pActiveVoices->first();
1188                            // proceed iterating if voice was created in this fragment cycle
1189                            while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice;
1190                            // found a "stealable" voice ?
1191                            if (itSelectedVoice && itSelectedVoice->IsStealable()) {
1192                                // remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing
1193                                this->iuiLastStolenKeyGlobally  = iuiSelectedKey;
1194                                this->itLastStolenVoiceGlobally = itSelectedVoice;
1195                                this->pLastStolenChannel        = pSelectedChannel;
1196                                goto stealable_voice_found; // selection succeeded
1197                            }
1198                            ++iuiSelectedKey; // get next key on current engine channel
1199                        }
1200                        // get next engine channel
1201                        iChannelIndex    = (iChannelIndex + 1) % engineChannels.size();
1202                        pSelectedChannel = engineChannels[iChannelIndex];
1203    
1204                        #if CONFIG_DEVMODE
1205                        if (pSelectedChannel == pBegin) {
1206                            dmsg(1,("FATAL ERROR: voice stealing endless loop!\n"));
1207                            dmsg(1,("VoiceSpawnsLeft=%d.\n", VoiceSpawnsLeft));
1208                            dmsg(1,("Exiting.\n"));
1209                            exit(-1);
1210                        }
1211                        #endif // CONFIG_DEVMODE
1212                    }
1213                }
1214    
1215                // jump point if a 'stealable' voice was found
1216                stealable_voice_found:
1217    
1218                #if CONFIG_DEVMODE
1219                if (!itSelectedVoice->IsActive()) {
1220                    dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n"));
1221                    return -1;
1222                }
1223                #endif // CONFIG_DEVMODE
1224    
1225              // now kill the selected voice              // now kill the selected voice
1226              itOldestVoice->Kill(itNoteOnEvent);              itSelectedVoice->Kill(itNoteOnEvent);
1227              // remember which voice on which key we stole, so we can simply proceed for the next voice stealing  
1228              this->itLastStolenVoice = itOldestVoice;              --VoiceSpawnsLeft;
1229              this->iuiLastStolenKey = iuiOldestKey;  
1230                return 0; // success
1231            }
1232            else {
1233                dmsg(1,("Event pool emtpy!\n"));
1234                return -1;
1235          }          }
         else dmsg(1,("Event pool emtpy!\n"));  
1236      }      }
1237    
1238      /**      /**
# Line 909  namespace LinuxSampler { namespace gig { Line 1241  namespace LinuxSampler { namespace gig {
1241       *  it finished to playback its sample, finished its release stage or       *  it finished to playback its sample, finished its release stage or
1242       *  just was killed.       *  just was killed.
1243       *       *
1244         *  @param pEngineChannel - engine channel on which this event occured on
1245       *  @param itVoice - points to the voice to be freed       *  @param itVoice - points to the voice to be freed
1246       */       */
1247      void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) {      void Engine::FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice) {
1248          if (itVoice) {          if (itVoice) {
1249              midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey];              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey];
1250    
1251              uint keygroup = itVoice->KeyGroup;              uint keygroup = itVoice->KeyGroup;
1252    
# Line 922  namespace LinuxSampler { namespace gig { Line 1255  namespace LinuxSampler { namespace gig {
1255    
1256              // if no other voices left and member of a key group, remove from key group              // if no other voices left and member of a key group, remove from key group
1257              if (pKey->pActiveVoices->isEmpty() && keygroup) {              if (pKey->pActiveVoices->isEmpty() && keygroup) {
1258                  uint** ppKeyGroup = &ActiveKeyGroups[keygroup];                  uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup];
1259                  if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group                  if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group
1260              }              }
1261          }          }
# Line 933  namespace LinuxSampler { namespace gig { Line 1266  namespace LinuxSampler { namespace gig {
1266       *  Called when there's no more voice left on a key, this call will       *  Called when there's no more voice left on a key, this call will
1267       *  update the key info respectively.       *  update the key info respectively.
1268       *       *
1269         *  @param pEngineChannel - engine channel on which this event occured on
1270       *  @param pKey - key which is now inactive       *  @param pKey - key which is now inactive
1271       */       */
1272      void Engine::FreeKey(midi_key_info_t* pKey) {      void Engine::FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey) {
1273          if (pKey->pActiveVoices->isEmpty()) {          if (pKey->pActiveVoices->isEmpty()) {
1274              pKey->Active = false;              pKey->Active = false;
1275              pActiveKeys->free(pKey->itSelf); // remove key from list of active keys              pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys
1276              pKey->itSelf = RTList<uint>::Iterator();              pKey->itSelf = RTList<uint>::Iterator();
1277              pKey->ReleaseTrigger = false;              pKey->ReleaseTrigger = false;
1278              pKey->pEvents->clear();              pKey->pEvents->clear();
# Line 951  namespace LinuxSampler { namespace gig { Line 1285  namespace LinuxSampler { namespace gig {
1285       *  Reacts on supported control change commands (e.g. pitch bend wheel,       *  Reacts on supported control change commands (e.g. pitch bend wheel,
1286       *  modulation wheel, aftertouch).       *  modulation wheel, aftertouch).
1287       *       *
1288         *  @param pEngineChannel - engine channel on which this event occured on
1289       *  @param itControlChangeEvent - controller, value and time stamp of the event       *  @param itControlChangeEvent - controller, value and time stamp of the event
1290       */       */
1291      void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) {      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {
1292          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));
1293    
1294            // update controller value in the engine channel's controller table
1295            pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
1296    
1297            // handle hard coded MIDI controllers
1298          switch (itControlChangeEvent->Param.CC.Controller) {          switch (itControlChangeEvent->Param.CC.Controller) {
1299              case 64: {              case 5: { // portamento time
1300                  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;
1301                      dmsg(4,("PEDAL DOWN\n"));                  break;
1302                      SustainPedal = true;              }
1303                case 7: { // volume
1304                    //TODO: not sample accurate yet
1305                    pEngineChannel->MidiVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value];
1306                    pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag
1307                    break;
1308                }
1309                case 10: { // panpot
1310                    //TODO: not sample accurate yet
1311                    pEngineChannel->GlobalPanLeft  = PanCurve[128 - itControlChangeEvent->Param.CC.Value];
1312                    pEngineChannel->GlobalPanRight = PanCurve[itControlChangeEvent->Param.CC.Value];
1313                    break;
1314                }
1315                case 64: { // sustain
1316                    if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) {
1317                        dmsg(4,("DAMPER (RIGHT) PEDAL DOWN\n"));
1318                        pEngineChannel->SustainPedal = true;
1319    
1320                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1321                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1322                        #endif
1323    
1324                      // cancel release process of voices if necessary                      // cancel release process of voices if necessary
1325                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1326                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
1327                          itControlChangeEvent->Type = Event::type_cancel_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1328                          while (iuiKey) {                          if (!pKey->KeyPressed) {
1329                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1330                              ++iuiKey;                              if (itNewEvent) {
1331                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list
1332                                  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"));  
1333                              }                              }
1334                                else dmsg(1,("Event pool emtpy!\n"));
1335                          }                          }
1336                      }                      }
1337                  }                  }
1338                  if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) {                  if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) {
1339                      dmsg(4,("PEDAL UP\n"));                      dmsg(4,("DAMPER (RIGHT) PEDAL UP\n"));
1340                      SustainPedal = false;                      pEngineChannel->SustainPedal = false;
1341    
1342                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1343                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1344                        #endif
1345    
1346                      // release voices if their respective key is not pressed                      // release voices if their respective key is not pressed
1347                      RTList<uint>::Iterator iuiKey = pActiveKeys->first();                      RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1348                      if (iuiKey) {                      for (; iuiKey; ++iuiKey) {
1349                          itControlChangeEvent->Type = Event::type_release; // transform event type                          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1350                          while (iuiKey) {                          if (!pKey->KeyPressed && ShouldReleaseVoice(pEngineChannel, *iuiKey)) {
1351                              midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];                              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1352                              ++iuiKey;                              if (itNewEvent) {
1353                              if (!pKey->KeyPressed) {                                  *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list
1354                                  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"));  
1355                              }                              }
1356                                else dmsg(1,("Event pool emtpy!\n"));
1357                          }                          }
1358                      }                      }
1359                  }                  }
1360                  break;                  break;
1361              }              }
1362          }              case 65: { // portamento on / off
1363                    KillAllVoices(pEngineChannel, itControlChangeEvent);
1364                    pEngineChannel->PortamentoMode = itControlChangeEvent->Param.CC.Value >= 64;
1365                    break;
1366                }
1367                case 66: { // sostenuto
1368                    if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SostenutoPedal) {
1369                        dmsg(4,("SOSTENUTO (CENTER) PEDAL DOWN\n"));
1370                        pEngineChannel->SostenutoPedal = true;
1371    
1372                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1373                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1374                        #endif
1375    
1376                        SostenutoKeyCount = 0;
1377                        // Remeber the pressed keys
1378                        RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1379                        for (; iuiKey; ++iuiKey) {
1380                            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1381                            if (pKey->KeyPressed && SostenutoKeyCount < 128) SostenutoKeys[SostenutoKeyCount++] = *iuiKey;
1382                        }
1383                    }
1384                    if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SostenutoPedal) {
1385                        dmsg(4,("SOSTENUTO (CENTER) PEDAL UP\n"));
1386                        pEngineChannel->SostenutoPedal = false;
1387    
1388                        #if !CONFIG_PROCESS_MUTED_CHANNELS
1389                        if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1390                        #endif
1391    
1392                        // release voices if the damper pedal is up and their respective key is not pressed
1393                        for (int i = 0; i < SostenutoKeyCount; i++) {
1394                            midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[SostenutoKeys[i]];
1395                            if (!pKey->KeyPressed && !pEngineChannel->SustainPedal) {
1396                                RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1397                                if (itNewEvent) {
1398                                    *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list
1399                                    itNewEvent->Type = Event::type_release; // transform event type
1400                                }
1401                                else dmsg(1,("Event pool emtpy!\n"));
1402                            }
1403                        }
1404                    }
1405                    break;
1406                }
1407    
1408    
1409          // update controller value in the engine's controller table              // Channel Mode Messages
         ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;  
1410    
1411          // move event from the unsorted event list to the control change event list              case 120: { // all sound off
1412          itControlChangeEvent.moveToEndOf(pCCEvents);                  KillAllVoices(pEngineChannel, itControlChangeEvent);
1413                    break;
1414                }
1415                case 121: { // reset all controllers
1416                    pEngineChannel->ResetControllers();
1417                    break;
1418                }
1419                case 123: { // all notes off
1420                    #if CONFIG_PROCESS_ALL_NOTES_OFF
1421                    ReleaseAllVoices(pEngineChannel, itControlChangeEvent);
1422                    #endif // CONFIG_PROCESS_ALL_NOTES_OFF
1423                    break;
1424                }
1425                case 126: { // mono mode on
1426                    KillAllVoices(pEngineChannel, itControlChangeEvent);
1427                    pEngineChannel->SoloMode = true;
1428                    break;
1429                }
1430                case 127: { // poly mode on
1431                    KillAllVoices(pEngineChannel, itControlChangeEvent);
1432                    pEngineChannel->SoloMode = false;
1433                    break;
1434                }
1435            }
1436    
1437            // handle FX send controllers
1438            if (!pEngineChannel->fxSends.empty()) {
1439                for (int iFxSend = 0; iFxSend < pEngineChannel->GetFxSendCount(); iFxSend++) {
1440                    FxSend* pFxSend = pEngineChannel->GetFxSend(iFxSend);
1441                    if (pFxSend->MidiController() == itControlChangeEvent->Param.CC.Controller)
1442                        pFxSend->SetLevel(itControlChangeEvent->Param.CC.Value);
1443                }
1444            }
1445      }      }
1446    
1447      /**      /**
# Line 1013  namespace LinuxSampler { namespace gig { Line 1450  namespace LinuxSampler { namespace gig {
1450       *  @param itSysexEvent - sysex data size and time stamp of the sysex event       *  @param itSysexEvent - sysex data size and time stamp of the sysex event
1451       */       */
1452      void Engine::ProcessSysex(Pool<Event>::Iterator& itSysexEvent) {      void Engine::ProcessSysex(Pool<Event>::Iterator& itSysexEvent) {
1453          RingBuffer<uint8_t>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader();          RingBuffer<uint8_t,false>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader();
1454    
1455          uint8_t exclusive_status, id;          uint8_t exclusive_status, id;
1456          if (!reader.pop(&exclusive_status)) goto free_sysex_data;          if (!reader.pop(&exclusive_status)) goto free_sysex_data;
# Line 1022  namespace LinuxSampler { namespace gig { Line 1459  namespace LinuxSampler { namespace gig {
1459    
1460          switch (id) {          switch (id) {
1461              case 0x41: { // Roland              case 0x41: { // Roland
1462                    dmsg(3,("Roland Sysex\n"));
1463                  uint8_t device_id, model_id, cmd_id;                  uint8_t device_id, model_id, cmd_id;
1464                  if (!reader.pop(&device_id)) goto free_sysex_data;                  if (!reader.pop(&device_id)) goto free_sysex_data;
1465                  if (!reader.pop(&model_id))  goto free_sysex_data;                  if (!reader.pop(&model_id))  goto free_sysex_data;
# Line 1031  namespace LinuxSampler { namespace gig { Line 1469  namespace LinuxSampler { namespace gig {
1469    
1470                  // command address                  // command address
1471                  uint8_t addr[3]; // 2 byte addr MSB, followed by 1 byte addr LSB)                  uint8_t addr[3]; // 2 byte addr MSB, followed by 1 byte addr LSB)
1472                  const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later                  const RingBuffer<uint8_t,false>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later
1473                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1474                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1475                        dmsg(3,("\tSystem Parameter\n"));
1476                  }                  }
1477                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1478                        dmsg(3,("\tCommon Parameter\n"));
1479                  }                  }
1480                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1)
1481                      switch (addr[3]) {                      dmsg(3,("\tPart Parameter\n"));
1482                        switch (addr[2]) {
1483                          case 0x40: { // scale tuning                          case 0x40: { // scale tuning
1484                                dmsg(3,("\t\tScale Tuning\n"));
1485                              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
1486                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;                              if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data;
1487                              uint8_t checksum;                              uint8_t checksum;
1488                              if (!reader.pop(&checksum))                      goto free_sysex_data;                              if (!reader.pop(&checksum)) goto free_sysex_data;
1489                              if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data;                              #if CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1490                                if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data;
1491                                #endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM
1492                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;                              for (int i = 0; i < 12; i++) scale_tunes[i] -= 64;
1493                              AdjustScale((int8_t*) scale_tunes);                              AdjustScale((int8_t*) scale_tunes);
1494                                dmsg(3,("\t\t\tNew scale applied.\n"));
1495                              break;                              break;
1496                          }                          }
1497                      }                      }
# Line 1071  namespace LinuxSampler { namespace gig { Line 1516  namespace LinuxSampler { namespace gig {
1516       *                     question       *                     question
1517       * @param DataSize   - size of the GS message data (in bytes)       * @param DataSize   - size of the GS message data (in bytes)
1518       */       */
1519      uint8_t Engine::GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize) {      uint8_t Engine::GSCheckSum(const RingBuffer<uint8_t,false>::NonVolatileReader AddrReader, uint DataSize) {
1520          RingBuffer<uint8_t>::NonVolatileReader reader = AddrReader;          RingBuffer<uint8_t,false>::NonVolatileReader reader = AddrReader;
1521          uint bytes = 3 /*addr*/ + DataSize;          uint bytes = 3 /*addr*/ + DataSize;
1522          uint8_t addr_and_data[bytes];          uint8_t addr_and_data[bytes];
1523          reader.read(&addr_and_data[0], bytes);          reader.read(&addr_and_data[0], bytes);
# Line 1091  namespace LinuxSampler { namespace gig { Line 1536  namespace LinuxSampler { namespace gig {
1536      }      }
1537    
1538      /**      /**
1539       * Initialize the parameter sequence for the modulation destination given by       * Releases all voices on an engine channel. All voices will go into
1540       * by 'dst' with the constant value given by val.       * the release stage and thus it might take some time (e.g. dependant to
1541         * their envelope release time) until they actually die.
1542         *
1543         * @param pEngineChannel - engine channel on which all voices should be released
1544         * @param itReleaseEvent - event which caused this releasing of all voices
1545       */       */
1546      void Engine::ResetSynthesisParameters(Event::destination_t dst, float val) {      void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) {
1547          int maxsamples = pAudioOutputDevice->MaxSamplesPerCycle();          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1548          float* m = &pSynthesisParameters[dst][0];          while (iuiKey) {
1549          for (int i = 0; i < maxsamples; i += 4) {              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1550             m[i]   = val;              ++iuiKey;
1551             m[i+1] = val;              // append a 'release' event to the key's own event list
1552             m[i+2] = val;              RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend();
1553             m[i+3] = val;              if (itNewEvent) {
1554                    *itNewEvent = *itReleaseEvent; // copy original event (to the key's event list)
1555                    itNewEvent->Type = Event::type_release; // transform event type
1556                }
1557                else dmsg(1,("Event pool emtpy!\n"));
1558          }          }
1559      }      }
1560    
1561      float Engine::Volume() {      /**
1562          return GlobalVolume;       * Kills all voices on an engine channel as soon as possible. Voices
1563      }       * won't get into release state, their volume level will be ramped down
1564         * as fast as possible.
1565      void Engine::Volume(float f) {       *
1566          GlobalVolume = f;       * @param pEngineChannel - engine channel on which all voices should be killed
1567      }       * @param itKillEvent    - event which caused this killing of all voices
1568         */
1569      uint Engine::Channels() {      void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) {
1570          return 2;          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
1571      }          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
1572            while (iuiKey != end) { // iterate through all active keys
1573      void Engine::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) {              midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
1574          AudioChannel* pChannel = pAudioOutputDevice->Channel(AudioDeviceChannel);              ++iuiKey;
1575          if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel));              RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
1576          switch (EngineAudioChannel) {              RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
1577              case 0: // left output channel              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
1578                  pOutputLeft = pChannel->Buffer();                  itVoice->Kill(itKillEvent);
1579                  AudioDeviceChannelLeft = AudioDeviceChannel;                  --VoiceSpawnsLeft; //FIXME: just a temporary workaround, we should check the cause in StealVoice() instead
1580                  break;              }
             case 1: // right output channel  
                 pOutputRight = pChannel->Buffer();  
                 AudioDeviceChannelRight = AudioDeviceChannel;  
                 break;  
             default:  
                 throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));  
1581          }          }
1582      }      }
1583    
1584      int Engine::OutputChannel(uint EngineAudioChannel) {      /**
1585          switch (EngineAudioChannel) {       * Determines whether the specified voice should be released.
1586              case 0: // left channel       *
1587                  return AudioDeviceChannelLeft;       * @param pEngineChannel - The engine channel on which the voice should be checked
1588              case 1: // right channel       * @param Key - The key number
1589                  return AudioDeviceChannelRight;       * @returns true if the specified should be released, false otherwise.
1590              default:       */
1591                  throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));      bool Engine::ShouldReleaseVoice(EngineChannel* pEngineChannel, int Key) {
1592            if (pEngineChannel->SustainPedal) return false;
1593    
1594            if (pEngineChannel->SostenutoPedal) {
1595                for (int i = 0; i < SostenutoKeyCount; i++)
1596                    if (Key == SostenutoKeys[i]) return false;
1597          }          }
1598    
1599            return true;
1600      }      }
1601    
1602      uint Engine::VoiceCount() {      uint Engine::VoiceCount() {
# Line 1174  namespace LinuxSampler { namespace gig { Line 1628  namespace LinuxSampler { namespace gig {
1628      }      }
1629    
1630      String Engine::EngineName() {      String Engine::EngineName() {
1631          return "GigEngine";          return LS_GIG_ENGINE_NAME;
     }  
   
     String Engine::InstrumentFileName() {  
         return InstrumentFile;  
     }  
   
     int Engine::InstrumentIndex() {  
         return InstrumentIdx;  
     }  
   
     int Engine::InstrumentStatus() {  
         return InstrumentStat;  
1632      }      }
1633    
1634      String Engine::Description() {      String Engine::Description() {
# Line 1194  namespace LinuxSampler { namespace gig { Line 1636  namespace LinuxSampler { namespace gig {
1636      }      }
1637    
1638      String Engine::Version() {      String Engine::Version() {
1639          String s = "$Revision: 1.23 $";          String s = "$Revision: 1.70 $";
1640          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
1641      }      }
1642    
1643        InstrumentManager* Engine::GetInstrumentManager() {
1644            return &instruments;
1645        }
1646    
1647        // static constant initializers
1648        const float* Engine::VolumeCurve(InitVolumeCurve());
1649        const float* Engine::PanCurve(InitPanCurve());
1650        const float* Engine::CrossfadeCurve(InitCrossfadeCurve());
1651    
1652        float* Engine::InitVolumeCurve() {
1653            // line-segment approximation
1654            const float segments[] = {
1655                0, 0, 2, 0.0046, 16, 0.016, 31, 0.051, 45, 0.115, 54.5, 0.2,
1656                64.5, 0.39, 74, 0.74, 92, 1.03, 114, 1.94, 119.2, 2.2, 127, 2.2
1657            };
1658            return InitCurve(segments);
1659        }
1660    
1661        float* Engine::InitPanCurve() {
1662            // line-segment approximation
1663            const float segments[] = {
1664                0, 0, 1, 0,
1665                2, 0.05, 31.5, 0.7, 51, 0.851, 74.5, 1.12,
1666                127, 1.41, 128, 1.41
1667            };
1668            return InitCurve(segments, 129);
1669        }
1670    
1671        float* Engine::InitCrossfadeCurve() {
1672            // line-segment approximation
1673            const float segments[] = {
1674                0, 0, 1, 0.03, 10, 0.1, 51, 0.58, 127, 1
1675            };
1676            return InitCurve(segments);
1677        }
1678    
1679        float* Engine::InitCurve(const float* segments, int size) {
1680            float* y = new float[size];
1681            for (int x = 0 ; x < size ; x++) {
1682                if (x > segments[2]) segments += 2;
1683                y[x] = segments[1] + (x - segments[0]) *
1684                    (segments[3] - segments[1]) / (segments[2] - segments[0]);
1685            }
1686            return y;
1687        }
1688    
1689  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig

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