/[svn]/linuxsampler/trunk/src/engines/gig/Engine.cpp
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revision 924 by schoenebeck, Sat Oct 21 14:13:09 2006 UTC revision 1722 by schoenebeck, Thu Apr 10 17:41:32 2008 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, 2006 Christian Schoenebeck                        *   *   Copyright (C) 2005-2008 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 29  Line 29 
29    
30  #include "Engine.h"  #include "Engine.h"
31    
32    #include "../../common/global_private.h"
33    
34  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
35    
36      InstrumentResourceManager Engine::instruments;      InstrumentResourceManager Engine::instruments;
# Line 51  namespace LinuxSampler { namespace gig { Line 53  namespace LinuxSampler { namespace gig {
53          if (engines.count(pDevice)) {          if (engines.count(pDevice)) {
54              dmsg(4,("Using existing gig::Engine.\n"));              dmsg(4,("Using existing gig::Engine.\n"));
55              pEngine = engines[pDevice];              pEngine = engines[pDevice];
56    
57                // Disable the engine while the new engine channel is
58                // added and initialized. The engine will be enabled again
59                // in EngineChannel::Connect.
60                pEngine->DisableAndLock();
61          } else { // create a new engine (and disk thread) instance for the given audio output device          } else { // create a new engine (and disk thread) instance for the given audio output device
62              dmsg(4,("Creating new gig::Engine.\n"));              dmsg(4,("Creating new gig::Engine.\n"));
63              pEngine = (Engine*) EngineFactory::Create("gig");              pEngine = (Engine*) EngineFactory::Create("gig");
# Line 67  namespace LinuxSampler { namespace gig { Line 74  namespace LinuxSampler { namespace gig {
74    
75      /**      /**
76       * Once an engine channel is disconnected from an audio output device,       * Once an engine channel is disconnected from an audio output device,
77       * it wil immediately call this method to unregister itself from the       * it will immediately call this method to unregister itself from the
78       * engine instance and if that engine instance is not used by any other       * engine instance and if that engine instance is not used by any other
79       * engine channel anymore, then that engine instance will be destroyed.       * engine channel anymore, then that engine instance will be destroyed.
80       *       *
# Line 93  namespace LinuxSampler { namespace gig { Line 100  namespace LinuxSampler { namespace gig {
100      /**      /**
101       * Constructor       * Constructor
102       */       */
103      Engine::Engine() {      Engine::Engine() : SuspendedRegions(128) {
104          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
105          pDiskThread        = NULL;          pDiskThread        = NULL;
106          pEventGenerator    = NULL;          pEventGenerator    = NULL;
107          pSysexBuffer       = new RingBuffer<uint8_t>(CONFIG_SYSEX_BUFFER_SIZE, 0);          pSysexBuffer       = new RingBuffer<uint8_t,false>(CONFIG_SYSEX_BUFFER_SIZE, 0);
108          pEventQueue        = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue        = new RingBuffer<Event,false>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);
109          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);
110          pVoicePool         = new Pool<Voice>(CONFIG_MAX_VOICES);          pVoicePool         = new Pool<Voice>(CONFIG_MAX_VOICES);
111            pDimRegionPool[0]  = new Pool< ::gig::DimensionRegion*>(CONFIG_MAX_VOICES);
112            pDimRegionPool[1]  = new Pool< ::gig::DimensionRegion*>(CONFIG_MAX_VOICES);
113          pVoiceStealingQueue = new RTList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
114          pGlobalEvents      = new RTList<Event>(pEventPool);          pGlobalEvents      = new RTList<Event>(pEventPool);
115    
116          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()) {
117              iterVoice->SetEngine(this);              iterVoice->SetEngine(this);
118          }          }
# Line 110  namespace LinuxSampler { namespace gig { Line 120  namespace LinuxSampler { namespace gig {
120    
121          ResetInternal();          ResetInternal();
122          ResetScaleTuning();          ResetScaleTuning();
123            ResetSuspendedRegions();
124      }      }
125    
126      /**      /**
# Line 132  namespace LinuxSampler { namespace gig { Line 143  namespace LinuxSampler { namespace gig {
143          if (pEventGenerator) delete pEventGenerator;          if (pEventGenerator) delete pEventGenerator;
144          if (pVoiceStealingQueue) delete pVoiceStealingQueue;          if (pVoiceStealingQueue) delete pVoiceStealingQueue;
145          if (pSysexBuffer) delete pSysexBuffer;          if (pSysexBuffer) delete pSysexBuffer;
146          EngineFactory::Destroy(this);          if (pGlobalEvents) delete pGlobalEvents;
147            if (pDimRegionPool[0]) delete pDimRegionPool[0];
148            if (pDimRegionPool[1]) delete pDimRegionPool[1];
149            ResetSuspendedRegions();
150            Unregister();
151      }      }
152    
153      void Engine::Enable() {      void Engine::Enable() {
# Line 141  namespace LinuxSampler { namespace gig { Line 156  namespace LinuxSampler { namespace gig {
156          dmsg(3,("gig::Engine: enabled (val=%d)\n", EngineDisabled.GetUnsafe()));          dmsg(3,("gig::Engine: enabled (val=%d)\n", EngineDisabled.GetUnsafe()));
157      }      }
158    
159        /**
160         * Temporarily stop the engine to not do anything. The engine will just be
161         * frozen during that time, that means after enabling it again it will
162         * continue where it was, with all its voices and playback state it had at
163         * the point of disabling. Notice that the engine's (audio) thread will
164         * continue to run, it just remains in an inactive loop during that time.
165         *
166         * If you need to be sure that all voices and disk streams are killed as
167         * well, use @c SuspendAll() instead.
168         *
169         * @see Enable(), SuspendAll()
170         */
171      void Engine::Disable() {      void Engine::Disable() {
172          dmsg(3,("gig::Engine: disabling\n"));          dmsg(3,("gig::Engine: disabling\n"));
173          bool* pWasDisabled = EngineDisabled.PushAndUnlock(true, 2); // wait max. 2s          bool* pWasDisabled = EngineDisabled.PushAndUnlock(true, 2); // wait max. 2s
# Line 154  namespace LinuxSampler { namespace gig { Line 181  namespace LinuxSampler { namespace gig {
181      }      }
182    
183      /**      /**
184         * Similar to @c Disable() but this method additionally kills all voices
185         * and disk streams and blocks until all voices and disk streams are actually
186         * killed / deleted.
187         *
188         * @e Note: only the original calling thread is able to re-enable the
189         * engine afterwards by calling @c ResumeAll() later on!
190         */
191        void Engine::SuspendAll() {
192            dmsg(2,("gig::Engine: Suspending all ...\n"));
193            // stop the engine, so we can safely modify the engine's
194            // data structures from this foreign thread
195            DisableAndLock();
196            // we could also use the respective class member variable here,
197            // but this is probably safer and cleaner
198            int iPendingStreamDeletions = 0;
199            // kill all voices on all engine channels the *die hard* way
200            for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) {
201                EngineChannel* pEngineChannel = engineChannels[iChannel];
202                RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
203                RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
204                for (; iuiKey != end; ++iuiKey) { // iterate through all active keys
205                    midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
206                    RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first();
207                    RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
208                    for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
209                        // request a notification from disk thread side for stream deletion
210                        const Stream::Handle hStream = itVoice->KillImmediately(true);
211                        if (hStream != Stream::INVALID_HANDLE) { // voice actually used a stream
212                            iPendingStreamDeletions++;
213                        }
214                    }
215                }
216            }
217            // wait until all streams were actually deleted by the disk thread
218            while (iPendingStreamDeletions) {
219                while (
220                    iPendingStreamDeletions &&
221                    pDiskThread->AskForDeletedStream() != Stream::INVALID_HANDLE
222                ) iPendingStreamDeletions--;
223                if (!iPendingStreamDeletions) break;
224                usleep(10000); // sleep for 10ms
225            }
226            dmsg(2,("gig::Engine: Everything suspended.\n"));
227        }
228    
229        /**
230         * At the moment same as calling @c Enable() directly, but this might
231         * change in future, so better call this method as counterpart to
232         * @c SuspendAll() instead of @c Enable() !
233         */
234        void Engine::ResumeAll() {
235            Enable();
236        }
237    
238        /**
239         * Order the engine to stop rendering audio for the given region.
240         * Additionally this method will block until all voices and their disk
241         * streams associated with that region are actually killed / deleted, so
242         * one can i.e. safely modify the region with an instrument editor after
243         * returning from this method.
244         *
245         * @param pRegion - region the engine shall stop using
246         */
247        void Engine::Suspend(::gig::Region* pRegion) {
248            dmsg(2,("gig::Engine: Suspending Region %x ...\n",pRegion));
249            SuspendedRegionsMutex.Lock();
250            SuspensionChangeOngoing.Set(true);
251            pPendingRegionSuspension = pRegion;
252            SuspensionChangeOngoing.WaitAndUnlockIf(true);
253            SuspendedRegionsMutex.Unlock();
254            dmsg(2,("gig::Engine: Region %x suspended.",pRegion));
255        }
256    
257        /**
258         * Orders the engine to resume playing back the given region, previously
259         * suspended with @c Suspend() .
260         *
261         * @param pRegion - region the engine shall be allowed to use again
262         */
263        void Engine::Resume(::gig::Region* pRegion) {
264            dmsg(2,("gig::Engine: Resuming Region %x ...\n",pRegion));
265            SuspendedRegionsMutex.Lock();
266            SuspensionChangeOngoing.Set(true);
267            pPendingRegionResumption = pRegion;
268            SuspensionChangeOngoing.WaitAndUnlockIf(true);
269            SuspendedRegionsMutex.Unlock();
270            dmsg(2,("gig::Engine: Region %x resumed.\n",pRegion));
271        }
272    
273        /**
274       *  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
275       *  control and status variables.       *  control and status variables.
276       */       */
# Line 208  namespace LinuxSampler { namespace gig { Line 325  namespace LinuxSampler { namespace gig {
325          memset(&ScaleTuning[0], 0x00, 12);          memset(&ScaleTuning[0], 0x00, 12);
326      }      }
327    
328        void Engine::ResetSuspendedRegions() {
329            SuspendedRegions.clear();
330            iPendingStreamDeletions = 0;
331            pPendingRegionSuspension = pPendingRegionResumption = NULL;
332            SuspensionChangeOngoing.Set(false);
333        }
334    
335      /**      /**
336       * Connect this engine instance with the given audio output device.       * Connect this engine instance with the given audio output device.
337       * This method will be called when an Engine instance is created.       * This method will be called when an Engine instance is created.
# Line 257  namespace LinuxSampler { namespace gig { Line 381  namespace LinuxSampler { namespace gig {
381              delete this->pDiskThread;              delete this->pDiskThread;
382              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
383          }          }
384          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6); //FIXME: assuming stereo          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo
385                                               &instruments);
386          if (!pDiskThread) {          if (!pDiskThread) {
387              dmsg(0,("gig::Engine  new diskthread = NULL\n"));              dmsg(0,("gig::Engine  new diskthread = NULL\n"));
388              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
# Line 286  namespace LinuxSampler { namespace gig { Line 411  namespace LinuxSampler { namespace gig {
411      }      }
412    
413      /**      /**
414         * Called by the engine's (audio) thread once per cycle to process requests
415         * from the outer world to suspend or resume a given @c gig::Region .
416         */
417        void Engine::ProcessSuspensionsChanges() {
418            // process request for suspending one region
419            if (pPendingRegionSuspension) {
420                // kill all voices on all engine channels that use this region
421                for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) {
422                    EngineChannel* pEngineChannel = engineChannels[iChannel];
423                    RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
424                    RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
425                    for (; iuiKey != end; ++iuiKey) { // iterate through all active keys
426                        midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
427                        RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first();
428                        // if current key is not associated with this region, skip this key
429                        if (itVoice->pDimRgn->GetParent() != pPendingRegionSuspension) continue;
430                        RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
431                        for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
432                            // request a notification from disk thread side for stream deletion
433                            const Stream::Handle hStream = itVoice->KillImmediately(true);
434                            if (hStream != Stream::INVALID_HANDLE) { // voice actually used a stream
435                                iPendingStreamDeletions++;
436                            }
437                        }
438                    }
439                }
440                // make sure the region is not yet on the list
441                bool bAlreadySuspended = false;
442                RTList< ::gig::Region*>::Iterator iter = SuspendedRegions.first();
443                RTList< ::gig::Region*>::Iterator end  = SuspendedRegions.end();
444                for (; iter != end; ++iter) { // iterate through all suspended regions
445                    if (*iter == pPendingRegionSuspension) { // found
446                        bAlreadySuspended = true;
447                        dmsg(1,("gig::Engine: attempt to suspend an already suspended region !!!\n"));
448                        break;
449                    }
450                }
451                if (!bAlreadySuspended) {
452                    // put the region on the list of suspended regions
453                    RTList< ::gig::Region*>::Iterator iter = SuspendedRegions.allocAppend();
454                    if (iter) {
455                        *iter = pPendingRegionSuspension;
456                    } else std::cerr << "gig::Engine: Could not suspend Region, list is full. This is a bug!!!\n" << std::flush;
457                }
458                // free request slot for next caller (and to make sure that
459                // we're not going to process the same request in the next cycle)
460                pPendingRegionSuspension = NULL;
461                // if no disk stream deletions are pending, awaken other side, as
462                // we're done in this case
463                if (!iPendingStreamDeletions) SuspensionChangeOngoing.Set(false);
464            }
465    
466            // process request for resuming one region
467            if (pPendingRegionResumption) {
468                // remove region from the list of suspended regions
469                RTList< ::gig::Region*>::Iterator iter = SuspendedRegions.first();
470                RTList< ::gig::Region*>::Iterator end  = SuspendedRegions.end();
471                for (; iter != end; ++iter) { // iterate through all suspended regions
472                    if (*iter == pPendingRegionResumption) { // found
473                        SuspendedRegions.free(iter);
474                        break; // done
475                    }
476                }
477                // free request slot for next caller
478                pPendingRegionResumption = NULL;
479                // awake other side as we're done
480                SuspensionChangeOngoing.Set(false);
481            }
482        }
483    
484        /**
485         * Called by the engine's (audio) thread once per cycle to check if
486         * streams of voices that were killed due to suspension request have
487         * finally really been deleted by the disk thread.
488         */
489        void Engine::ProcessPendingStreamDeletions() {
490            if (!iPendingStreamDeletions) return;
491            //TODO: or shall we better store a list with stream handles instead of a scalar amount of streams to be deleted? might be safer
492            while (
493                iPendingStreamDeletions &&
494                pDiskThread->AskForDeletedStream() != Stream::INVALID_HANDLE
495            ) iPendingStreamDeletions--;
496            // just for safety ...
497            while (pDiskThread->AskForDeletedStream() != Stream::INVALID_HANDLE);
498            // now that all disk streams are deleted, awake other side as
499            // we're finally done with suspending the requested region
500            if (!iPendingStreamDeletions) SuspensionChangeOngoing.Set(false);
501        }
502    
503        /**
504         * Returns @c true if the given region is currently set to be suspended
505         * from being used, @c false otherwise.
506         */
507        bool Engine::RegionSuspended(::gig::Region* pRegion) {
508            if (SuspendedRegions.isEmpty()) return false;
509            //TODO: or shall we use a sorted container instead of the RTList? might be faster ... or trivial ;-)
510            RTList< ::gig::Region*>::Iterator iter = SuspendedRegions.first();
511            RTList< ::gig::Region*>::Iterator end  = SuspendedRegions.end();
512            for (; iter != end; ++iter)  // iterate through all suspended regions
513                if (*iter == pRegion) return true;
514            return false;
515        }
516    
517        /**
518       * Clear all engine global event lists.       * Clear all engine global event lists.
519       */       */
520      void Engine::ClearEventLists() {      void Engine::ClearEventLists() {
# Line 306  namespace LinuxSampler { namespace gig { Line 535  namespace LinuxSampler { namespace gig {
535       *                  current audio cycle       *                  current audio cycle
536       */       */
537      void Engine::ImportEvents(uint Samples) {      void Engine::ImportEvents(uint Samples) {
538          RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();          RingBuffer<Event,false>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader();
539          Event* pEvent;          Event* pEvent;
540          while (true) {          while (true) {
541              // get next event from input event queue              // get next event from input event queue
# Line 340  namespace LinuxSampler { namespace gig { Line 569  namespace LinuxSampler { namespace gig {
569       *  @returns       0 on success       *  @returns       0 on success
570       */       */
571      int Engine::RenderAudio(uint Samples) {      int Engine::RenderAudio(uint Samples) {
572          dmsg(5,("RenderAudio(Samples=%d)\n", Samples));          dmsg(8,("RenderAudio(Samples=%d)\n", Samples));
573    
574          // return if engine disabled          // return if engine disabled
575          if (EngineDisabled.Pop()) {          if (EngineDisabled.Pop()) {
# Line 348  namespace LinuxSampler { namespace gig { Line 577  namespace LinuxSampler { namespace gig {
577              return 0;              return 0;
578          }          }
579    
580            // process requests for suspending / resuming regions (i.e. to avoid
581            // crashes while these regions are modified by an instrument editor)
582            ProcessSuspensionsChanges();
583    
584          // 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)
585          pEventGenerator->UpdateFragmentTime(Samples);          pEventGenerator->UpdateFragmentTime(Samples);
586    
# Line 377  namespace LinuxSampler { namespace gig { Line 610  namespace LinuxSampler { namespace gig {
610          // reset internal voice counter (just for statistic of active voices)          // reset internal voice counter (just for statistic of active voices)
611          ActiveVoiceCountTemp = 0;          ActiveVoiceCountTemp = 0;
612    
613            // handle instrument change commands
614            bool instrumentChanged = false;
615            for (int i = 0; i < engineChannels.size(); i++) {
616                EngineChannel* pEngineChannel = engineChannels[i];
617    
618                // as we're going to (carefully) write some status to the
619                // synchronized struct, we cast away the const
620                EngineChannel::instrument_change_command_t& cmd =
621                    const_cast<EngineChannel::instrument_change_command_t&>(pEngineChannel->InstrumentChangeCommandReader.Lock());
622    
623                pEngineChannel->pDimRegionsInUse = cmd.pDimRegionsInUse;
624                pEngineChannel->pDimRegionsInUse->clear();
625    
626                if (cmd.bChangeInstrument) {
627                    // change instrument
628                    dmsg(5,("Engine: instrument change command received\n"));
629                    cmd.bChangeInstrument = false;
630                    pEngineChannel->pInstrument = cmd.pInstrument;
631                    instrumentChanged = true;
632    
633                    // Iterate through all active voices and mark them as
634                    // "orphans", which means that the dimension regions
635                    // and samples they use should be released to the
636                    // instrument resource manager when the voices die.
637                    int i = 0;
638                    RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
639                    RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
640                    while (iuiKey != end) { // iterate through all active keys
641                        midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey];
642                        ++iuiKey;
643    
644                        RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
645                        RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
646                        for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
647                            itVoice->Orphan = true;
648                        }
649                    }
650                }
651            }
652            if (instrumentChanged) {
653                //TODO: this is a lazy solution ATM and not safe in case somebody is currently editing the instrument we're currently switching to (we should store all suspended regions on instrument manager side and when switching to another instrument copy that list to the engine's local list of suspensions
654                ResetSuspendedRegions();
655            }
656    
657          // handle events on all engine channels          // handle events on all engine channels
658          for (int i = 0; i < engineChannels.size(); i++) {          for (int i = 0; i < engineChannels.size(); i++) {
             if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded  
659              ProcessEvents(engineChannels[i], Samples);              ProcessEvents(engineChannels[i], Samples);
660          }          }
661    
662          // render all 'normal', active voices on all engine channels          // render all 'normal', active voices on all engine channels
663          for (int i = 0; i < engineChannels.size(); i++) {          for (int i = 0; i < engineChannels.size(); i++) {
             if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded  
664              RenderActiveVoices(engineChannels[i], Samples);              RenderActiveVoices(engineChannels[i], Samples);
665          }          }
666    
667          // now that all ordinary voices on ALL engine channels are rendered, render new stolen voices          // now that all ordinary voices on ALL engine channels are rendered, render new stolen voices
668          RenderStolenVoices(Samples);          RenderStolenVoices(Samples);
669    
670            // handle audio routing for engine channels with FX sends
671            for (int i = 0; i < engineChannels.size(); i++) {
672                if (engineChannels[i]->fxSends.empty()) continue; // ignore if no FX sends
673                RouteAudio(engineChannels[i], Samples);
674            }
675    
676          // handle cleanup on all engine channels for the next audio fragment          // handle cleanup on all engine channels for the next audio fragment
677          for (int i = 0; i < engineChannels.size(); i++) {          for (int i = 0; i < engineChannels.size(); i++) {
             if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded  
678              PostProcess(engineChannels[i]);              PostProcess(engineChannels[i]);
679          }          }
680    
# Line 409  namespace LinuxSampler { namespace gig { Line 689  namespace LinuxSampler { namespace gig {
689          ActiveVoiceCount = ActiveVoiceCountTemp;          ActiveVoiceCount = ActiveVoiceCountTemp;
690          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;
691    
692            // in case regions were previously suspended and we killed voices
693            // with disk streams due to that, check if those streams have finally
694            // been deleted by the disk thread
695            if (iPendingStreamDeletions) ProcessPendingStreamDeletions();
696    
697            for (int i = 0; i < engineChannels.size(); i++) {
698                engineChannels[i]->InstrumentChangeCommandReader.Unlock();
699            }
700          FrameTime += Samples;          FrameTime += Samples;
701    
702          return 0;          return 0;
# Line 476  namespace LinuxSampler { namespace gig { Line 764  namespace LinuxSampler { namespace gig {
764          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
765          #endif          #endif
766    
767            uint voiceCount = 0;
768            uint streamCount = 0;
769          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();          RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first();
770          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();          RTList<uint>::Iterator end    = pEngineChannel->pActiveKeys->end();
771          while (iuiKey != end) { // iterate through all active keys          while (iuiKey != end) { // iterate through all active keys
# Line 487  namespace LinuxSampler { namespace gig { Line 777  namespace LinuxSampler { namespace gig {
777              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key              for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
778                  // now render current voice                  // now render current voice
779                  itVoice->Render(Samples);                  itVoice->Render(Samples);
780                  if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active                  if (itVoice->IsActive()) { // still active
781                  else { // voice reached end, is now inactive                      if (!itVoice->Orphan) {
782                            *(pEngineChannel->pDimRegionsInUse->allocAppend()) = itVoice->pDimRgn;
783                        }
784                        ActiveVoiceCountTemp++;
785                        voiceCount++;
786    
787                        if (itVoice->PlaybackState == Voice::playback_state_disk) {
788                            if ((itVoice->DiskStreamRef).State == Stream::state_active) streamCount++;
789                        }
790                    }  else { // voice reached end, is now inactive
791                      FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices                      FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices
792                  }                  }
793              }              }
794          }          }
795    
796            pEngineChannel->SetVoiceCount(voiceCount);
797            pEngineChannel->SetDiskStreamCount(streamCount);
798      }      }
799    
800      /**      /**
# Line 513  namespace LinuxSampler { namespace gig { Line 815  namespace LinuxSampler { namespace gig {
815          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();          RTList<Event>::Iterator end               = pVoiceStealingQueue->end();
816          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {          for (; itVoiceStealEvent != end; ++itVoiceStealEvent) {
817              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;              EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel;
818                if (!pEngineChannel->pInstrument) continue; // ignore if no instrument loaded
819              Pool<Voice>::Iterator itNewVoice =              Pool<Voice>::Iterator itNewVoice =
820                  LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false);                  LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false);
821              if (itNewVoice) {              if (itNewVoice) {
822                  itNewVoice->Render(Samples);                  itNewVoice->Render(Samples);
823                  if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active                  if (itNewVoice->IsActive()) { // still active
824                  else { // voice reached end, is now inactive                      *(pEngineChannel->pDimRegionsInUse->allocAppend()) = itNewVoice->pDimRgn;
825                        ActiveVoiceCountTemp++;
826                        pEngineChannel->SetVoiceCount(pEngineChannel->GetVoiceCount() + 1);
827    
828                        if (itNewVoice->PlaybackState == Voice::playback_state_disk) {
829                            if (itNewVoice->DiskStreamRef.State == Stream::state_active) {
830                                pEngineChannel->SetDiskStreamCount(pEngineChannel->GetDiskStreamCount() + 1);
831                            }
832                        }
833                    } else { // voice reached end, is now inactive
834                      FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices                      FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices
835                  }                  }
836              }              }
# Line 532  namespace LinuxSampler { namespace gig { Line 844  namespace LinuxSampler { namespace gig {
844      }      }
845    
846      /**      /**
847         * Will be called in case the respective engine channel sports FX send
848         * channels. In this particular case, engine channel local buffers are
849         * used to render and mix all voices to. This method is responsible for
850         * copying the audio data from those local buffers to the master audio
851         * output channels as well as to the FX send audio output channels with
852         * their respective FX send levels.
853         *
854         * @param pEngineChannel - engine channel from which audio should be
855         *                         routed
856         * @param Samples        - amount of sample points to be routed in
857         *                         this audio fragment cycle
858         */
859        void Engine::RouteAudio(EngineChannel* pEngineChannel, uint Samples) {
860            // route dry signal
861            {
862                AudioChannel* pDstL = pAudioOutputDevice->Channel(pEngineChannel->AudioDeviceChannelLeft);
863                AudioChannel* pDstR = pAudioOutputDevice->Channel(pEngineChannel->AudioDeviceChannelRight);
864                pEngineChannel->pChannelLeft->MixTo(pDstL, Samples);
865                pEngineChannel->pChannelRight->MixTo(pDstR, Samples);
866            }
867            // route FX send signal
868            {
869                for (int iFxSend = 0; iFxSend < pEngineChannel->GetFxSendCount(); iFxSend++) {
870                    FxSend* pFxSend = pEngineChannel->GetFxSend(iFxSend);
871                    for (int iChan = 0; iChan < 2; ++iChan) {
872                        AudioChannel* pSource =
873                            (iChan)
874                                ? pEngineChannel->pChannelRight
875                                : pEngineChannel->pChannelLeft;
876                        const int iDstChan = pFxSend->DestinationChannel(iChan);
877                        if (iDstChan < 0) {
878                            dmsg(1,("Engine::RouteAudio() Error: invalid FX send (%s) destination channel (%d->%d)", ((iChan) ? "R" : "L"), iChan, iDstChan));
879                            goto channel_cleanup;
880                        }
881                        AudioChannel* pDstChan = NULL;
882                        if (pFxSend->DestinationMasterEffectChain() >= 0) { // fx send routed to an internal master effect
883                            EffectChain* pEffectChain =
884                                pAudioOutputDevice->MasterEffectChain(
885                                    pFxSend->DestinationMasterEffectChain()
886                                );
887                            if (!pEffectChain) {
888                                dmsg(1,("Engine::RouteAudio() Error: invalid FX send (%s) destination effect chain %d", ((iChan) ? "R" : "L"), pFxSend->DestinationMasterEffectChain()));
889                                goto channel_cleanup;
890                            }
891                            Effect* pEffect =
892                                pEffectChain->GetEffect(
893                                    pFxSend->DestinationMasterEffect()
894                                );
895                            if (!pEffect) {
896                                dmsg(1,("Engine::RouteAudio() Error: invalid FX send (%s) destination effect %d of effect chain %d", ((iChan) ? "R" : "L"), pFxSend->DestinationMasterEffect(), pFxSend->DestinationMasterEffectChain()));
897                                goto channel_cleanup;
898                            }
899                            pDstChan = pEffect->InputChannel(iDstChan);
900                        } else { // FX send routed directly to an audio output channel
901                            pDstChan = pAudioOutputDevice->Channel(iDstChan);
902                        }
903                        if (!pDstChan) {
904                            dmsg(1,("Engine::RouteAudio() Error: invalid FX send (%s) destination channel (%d->%d)", ((iChan) ? "R" : "L"), iChan, iDstChan));
905                            goto channel_cleanup;
906                        }
907                        pSource->MixTo(pDstChan, Samples, pFxSend->Level());
908                    }
909                }
910            }
911            channel_cleanup:
912            // reset buffers with silence (zero out) for the next audio cycle
913            pEngineChannel->pChannelLeft->Clear();
914            pEngineChannel->pChannelRight->Clear();
915        }
916    
917        /**
918       * Free all keys which have turned inactive in this audio fragment, from       * Free all keys which have turned inactive in this audio fragment, from
919       * the list of active keys and clear all event lists on that engine       * the list of active keys and clear all event lists on that engine
920       * channel.       * channel.
# Line 608  namespace LinuxSampler { namespace gig { Line 991  namespace LinuxSampler { namespace gig {
991          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
992          #endif          #endif
993    
994            if (!pEngineChannel->pInstrument) return; // ignore if no instrument loaded
995    
996            //HACK: we should better add the transpose value only to the most mandatory places (like for retrieving the region and calculating the tuning), because otherwise voices will unintendedly survive when changing transpose while playing
997            itNoteOnEvent->Param.Note.Key += pEngineChannel->GlobalTranspose;
998    
999          const int key = itNoteOnEvent->Param.Note.Key;          const int key = itNoteOnEvent->Param.Note.Key;
1000          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key];
1001    
# Line 665  namespace LinuxSampler { namespace gig { Line 1053  namespace LinuxSampler { namespace gig {
1053          {          {
1054              // first, get total amount of required voices (dependant on amount of layers)              // first, get total amount of required voices (dependant on amount of layers)
1055              ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key);              ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key);
1056              if (pRegion) {              if (pRegion && !RegionSuspended(pRegion)) {
1057                  int voicesRequired = pRegion->Layers;                  int voicesRequired = pRegion->Layers;
1058                  // now launch the required amount of voices                  // now launch the required amount of voices
1059                  for (int i = 0; i < voicesRequired; i++)                  for (int i = 0; i < voicesRequired; i++)
# Line 695  namespace LinuxSampler { namespace gig { Line 1083  namespace LinuxSampler { namespace gig {
1083          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted          if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted
1084          #endif          #endif
1085    
1086            //HACK: we should better add the transpose value only to the most mandatory places (like for retrieving the region and calculating the tuning), because otherwise voices will unintendedly survive when changing transpose while playing
1087            itNoteOffEvent->Param.Note.Key += pEngineChannel->GlobalTranspose;
1088    
1089          const int iKey = itNoteOffEvent->Param.Note.Key;          const int iKey = itNoteOffEvent->Param.Note.Key;
1090          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey];          midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey];
1091          pKey->KeyPressed = false; // the MIDI key was now released          pKey->KeyPressed = false; // the MIDI key was now released
# Line 705  namespace LinuxSampler { namespace gig { Line 1096  namespace LinuxSampler { namespace gig {
1096          bool bShouldRelease = pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEventOnKeyList->Param.Note.Key);          bool bShouldRelease = pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEventOnKeyList->Param.Note.Key);
1097    
1098          // in case Solo Mode is enabled, kill all voices on this key and respawn a voice on the highest pressed key (if any)          // in case Solo Mode is enabled, kill all voices on this key and respawn a voice on the highest pressed key (if any)
1099          if (pEngineChannel->SoloMode) { //TODO: this feels like too much code just for handling solo mode :P          if (pEngineChannel->SoloMode && pEngineChannel->pInstrument) { //TODO: this feels like too much code just for handling solo mode :P
1100              bool bOtherKeysPressed = false;              bool bOtherKeysPressed = false;
1101              if (iKey == pEngineChannel->SoloKey) {              if (iKey == pEngineChannel->SoloKey) {
1102                  pEngineChannel->SoloKey = -1;                  pEngineChannel->SoloKey = -1;
# Line 768  namespace LinuxSampler { namespace gig { Line 1159  namespace LinuxSampler { namespace gig {
1159              itNoteOffEventOnKeyList->Type = Event::type_release; // transform event type              itNoteOffEventOnKeyList->Type = Event::type_release; // transform event type
1160    
1161              // spawn release triggered voice(s) if needed              // spawn release triggered voice(s) if needed
1162              if (pKey->ReleaseTrigger) {              if (pKey->ReleaseTrigger && pEngineChannel->pInstrument) {
1163                  // first, get total amount of required voices (dependant on amount of layers)                  // first, get total amount of required voices (dependant on amount of layers)
1164                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);                  ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key);
1165                  if (pRegion) {                  if (pRegion) {
# Line 963  namespace LinuxSampler { namespace gig { Line 1354  namespace LinuxSampler { namespace gig {
1354                      std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;                      std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush;
1355              }              }
1356          }          }
1357    
1358            // return if this is a release triggered voice and there is no
1359            // releasetrigger dimension (could happen if an instrument
1360            // change has occured between note on and off)
1361            if (ReleaseTriggerVoice && VoiceType != Voice::type_release_trigger) return Pool<Voice>::Iterator();
1362    
1363          ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);          ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues);
1364    
1365          // no need to continue if sample is silent          // no need to continue if sample is silent
# Line 1192  namespace LinuxSampler { namespace gig { Line 1589  namespace LinuxSampler { namespace gig {
1589    
1590              uint keygroup = itVoice->KeyGroup;              uint keygroup = itVoice->KeyGroup;
1591    
1592                // if the sample and dimension region belong to an
1593                // instrument that is unloaded, tell the disk thread to
1594                // release them
1595                if (itVoice->Orphan) {
1596                    pDiskThread->OrderDeletionOfDimreg(itVoice->pDimRgn);
1597                }
1598    
1599              // free the voice object              // free the voice object
1600              pVoicePool->free(itVoice);              pVoicePool->free(itVoice);
1601    
# Line 1233  namespace LinuxSampler { namespace gig { Line 1637  namespace LinuxSampler { namespace gig {
1637      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {      void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) {
1638          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));
1639    
1640            // handle the "control triggered" MIDI rule: a control change
1641            // event can trigger a new note on or note off event
1642            if (pEngineChannel->pInstrument) {
1643    
1644                ::gig::MidiRule* rule;
1645                for (int i = 0 ; (rule = pEngineChannel->pInstrument->GetMidiRule(i)) ; i++) {
1646    
1647                    if (::gig::MidiRuleCtrlTrigger* ctrlTrigger =
1648                        dynamic_cast< ::gig::MidiRuleCtrlTrigger*>(rule)) {
1649                        if (itControlChangeEvent->Param.CC.Controller ==
1650                            ctrlTrigger->ControllerNumber) {
1651    
1652                            uint8_t oldCCValue = pEngineChannel->ControllerTable[
1653                                itControlChangeEvent->Param.CC.Controller];
1654                            uint8_t newCCValue = itControlChangeEvent->Param.CC.Value;
1655    
1656                            for (int i = 0 ; i < ctrlTrigger->Triggers ; i++) {
1657                                ::gig::MidiRuleCtrlTrigger::trigger_t* pTrigger =
1658                                      &ctrlTrigger->pTriggers[i];
1659    
1660                                // check if the controller has passed the
1661                                // trigger point in the right direction
1662                                if ((pTrigger->Descending &&
1663                                     oldCCValue > pTrigger->TriggerPoint &&
1664                                     newCCValue <= pTrigger->TriggerPoint) ||
1665                                    (!pTrigger->Descending &&
1666                                     oldCCValue < pTrigger->TriggerPoint &&
1667                                     newCCValue >= pTrigger->TriggerPoint)) {
1668    
1669                                    RTList<Event>::Iterator itNewEvent = pGlobalEvents->allocAppend();
1670                                    if (itNewEvent) {
1671                                        *itNewEvent = *itControlChangeEvent;
1672                                        itNewEvent->Param.Note.Key = pTrigger->Key;
1673    
1674                                        if (pTrigger->NoteOff || pTrigger->Velocity == 0) {
1675                                            itNewEvent->Type = Event::type_note_off;
1676                                            itNewEvent->Param.Note.Velocity = 100;
1677    
1678                                            ProcessNoteOff(pEngineChannel, itNewEvent);
1679                                        } else {
1680                                            itNewEvent->Type = Event::type_note_on;
1681                                            //TODO: if Velocity is 255, the triggered velocity should
1682                                            // depend on how fast the controller is moving
1683                                            itNewEvent->Param.Note.Velocity =
1684                                                pTrigger->Velocity == 255 ? 100 :
1685                                                pTrigger->Velocity;
1686    
1687                                            ProcessNoteOn(pEngineChannel, itNewEvent);
1688                                        }
1689                                    }
1690                                    else dmsg(1,("Event pool emtpy!\n"));
1691                                }
1692                            }
1693                        }
1694                    }
1695                }
1696            }
1697    
1698          // update controller value in the engine channel's controller table          // update controller value in the engine channel's controller table
1699          pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;          pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value;
1700    
1701            // handle hard coded MIDI controllers
1702          switch (itControlChangeEvent->Param.CC.Controller) {          switch (itControlChangeEvent->Param.CC.Controller) {
1703              case 5: { // portamento time              case 5: { // portamento time
1704                  pEngineChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN;                  pEngineChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN;
1705                  break;                  break;
1706              }              }
1707                case 6: { // data entry (currently only used for RPN controllers)
1708                    if (pEngineChannel->GetMidiRpnController() == 2) { // coarse tuning in half tones
1709                        int transpose = (int) itControlChangeEvent->Param.CC.Value - 64;
1710                        // limit to +- two octaves for now
1711                        transpose = RTMath::Min(transpose,  24);
1712                        transpose = RTMath::Max(transpose, -24);
1713                        pEngineChannel->GlobalTranspose = transpose;
1714                        // workaround, so we won't have hanging notes
1715                        ReleaseAllVoices(pEngineChannel, itControlChangeEvent);
1716                    }
1717                    // to avoid other MIDI CC #6 messages to be misenterpreted as RPN controller data
1718                    pEngineChannel->ResetMidiRpnController();
1719                    break;
1720                }
1721              case 7: { // volume              case 7: { // volume
1722                  //TODO: not sample accurate yet                  //TODO: not sample accurate yet
1723                  pEngineChannel->GlobalVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value] *  CONFIG_GLOBAL_ATTENUATION;                  pEngineChannel->MidiVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value];
1724                  pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag                  pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag
1725                  break;                  break;
1726              }              }
# Line 1301  namespace LinuxSampler { namespace gig { Line 1778  namespace LinuxSampler { namespace gig {
1778                  break;                  break;
1779              }              }
1780              case 65: { // portamento on / off              case 65: { // portamento on / off
1781                  KillAllVoices(pEngineChannel, itControlChangeEvent);                  const bool bPortamento = itControlChangeEvent->Param.CC.Value >= 64;
1782                  pEngineChannel->PortamentoMode = itControlChangeEvent->Param.CC.Value >= 64;                  if (bPortamento != pEngineChannel->PortamentoMode)
1783                        KillAllVoices(pEngineChannel, itControlChangeEvent);
1784                    pEngineChannel->PortamentoMode = bPortamento;
1785                  break;                  break;
1786              }              }
1787              case 66: { // sostenuto              case 66: { // sostenuto
# Line 1345  namespace LinuxSampler { namespace gig { Line 1824  namespace LinuxSampler { namespace gig {
1824                  }                  }
1825                  break;                  break;
1826              }              }
1827                case 100: { // RPN controller LSB
1828                    pEngineChannel->SetMidiRpnControllerLsb(itControlChangeEvent->Param.CC.Value);
1829                    break;
1830                }
1831                case 101: { // RPN controller MSB
1832                    pEngineChannel->SetMidiRpnControllerMsb(itControlChangeEvent->Param.CC.Value);
1833                    break;
1834                }
1835    
1836    
1837              // Channel Mode Messages              // Channel Mode Messages
# Line 1364  namespace LinuxSampler { namespace gig { Line 1851  namespace LinuxSampler { namespace gig {
1851                  break;                  break;
1852              }              }
1853              case 126: { // mono mode on              case 126: { // mono mode on
1854                  KillAllVoices(pEngineChannel, itControlChangeEvent);                  if (!pEngineChannel->SoloMode)
1855                        KillAllVoices(pEngineChannel, itControlChangeEvent);
1856                  pEngineChannel->SoloMode = true;                  pEngineChannel->SoloMode = true;
1857                  break;                  break;
1858              }              }
1859              case 127: { // poly mode on              case 127: { // poly mode on
1860                  KillAllVoices(pEngineChannel, itControlChangeEvent);                  if (pEngineChannel->SoloMode)
1861                        KillAllVoices(pEngineChannel, itControlChangeEvent);
1862                  pEngineChannel->SoloMode = false;                  pEngineChannel->SoloMode = false;
1863                  break;                  break;
1864              }              }
1865          }          }
1866    
1867            // handle FX send controllers
1868            if (!pEngineChannel->fxSends.empty()) {
1869                for (int iFxSend = 0; iFxSend < pEngineChannel->GetFxSendCount(); iFxSend++) {
1870                    FxSend* pFxSend = pEngineChannel->GetFxSend(iFxSend);
1871                    if (pFxSend->MidiController() == itControlChangeEvent->Param.CC.Controller) {
1872                        pFxSend->SetLevel(itControlChangeEvent->Param.CC.Value);
1873                        pFxSend->SetInfoChanged(true);
1874                    }
1875                }
1876            }
1877      }      }
1878    
1879      /**      /**
# Line 1382  namespace LinuxSampler { namespace gig { Line 1882  namespace LinuxSampler { namespace gig {
1882       *  @param itSysexEvent - sysex data size and time stamp of the sysex event       *  @param itSysexEvent - sysex data size and time stamp of the sysex event
1883       */       */
1884      void Engine::ProcessSysex(Pool<Event>::Iterator& itSysexEvent) {      void Engine::ProcessSysex(Pool<Event>::Iterator& itSysexEvent) {
1885          RingBuffer<uint8_t>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader();          RingBuffer<uint8_t,false>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader();
1886    
1887          uint8_t exclusive_status, id;          uint8_t exclusive_status, id;
1888          if (!reader.pop(&exclusive_status)) goto free_sysex_data;          if (!reader.pop(&exclusive_status)) goto free_sysex_data;
# Line 1401  namespace LinuxSampler { namespace gig { Line 1901  namespace LinuxSampler { namespace gig {
1901    
1902                  // command address                  // command address
1903                  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)
1904                  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
1905                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1906                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1907                      dmsg(3,("\tSystem Parameter\n"));                      dmsg(3,("\tSystem Parameter\n"));
# Line 1448  namespace LinuxSampler { namespace gig { Line 1948  namespace LinuxSampler { namespace gig {
1948       *                     question       *                     question
1949       * @param DataSize   - size of the GS message data (in bytes)       * @param DataSize   - size of the GS message data (in bytes)
1950       */       */
1951      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) {
1952          RingBuffer<uint8_t>::NonVolatileReader reader = AddrReader;          RingBuffer<uint8_t,false>::NonVolatileReader reader = AddrReader;
1953          uint bytes = 3 /*addr*/ + DataSize;          uint bytes = 3 /*addr*/ + DataSize;
1954          uint8_t addr_and_data[bytes];          uint8_t addr_and_data[bytes];
1955          reader.read(&addr_and_data[0], bytes);          reader.read(&addr_and_data[0], bytes);
# Line 1564  namespace LinuxSampler { namespace gig { Line 2064  namespace LinuxSampler { namespace gig {
2064      }      }
2065    
2066      String Engine::Description() {      String Engine::Description() {
2067          return "Gigasampler Engine";          return "Gigasampler Format Engine";
2068      }      }
2069    
2070      String Engine::Version() {      String Engine::Version() {
2071          String s = "$Revision: 1.65 $";          String s = "$Revision: 1.90 $";
2072          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
2073      }      }
2074    
2075        InstrumentManager* Engine::GetInstrumentManager() {
2076            return &instruments;
2077        }
2078    
2079      // static constant initializers      // static constant initializers
2080      const float* Engine::VolumeCurve(InitVolumeCurve());      const Engine::FloatTable Engine::VolumeCurve(InitVolumeCurve());
2081      const float* Engine::PanCurve(InitPanCurve());      const Engine::FloatTable Engine::PanCurve(InitPanCurve());
2082      const float* Engine::CrossfadeCurve(InitCrossfadeCurve());      const Engine::FloatTable Engine::CrossfadeCurve(InitCrossfadeCurve());
2083    
2084      float* Engine::InitVolumeCurve() {      float* Engine::InitVolumeCurve() {
2085          // line-segment approximation          // line-segment approximation
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