--- linuxsampler/trunk/src/engines/gig/Engine.cpp 2005/03/15 19:27:01 466 +++ linuxsampler/trunk/src/engines/gig/Engine.cpp 2006/01/28 16:55:30 831 @@ -3,7 +3,7 @@ * LinuxSampler - modular, streaming capable sampler * * * * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * - * Copyright (C) 2005 Christian Schoenebeck * + * Copyright (C) 2005, 2006 Christian Schoenebeck * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * @@ -29,12 +29,6 @@ #include "Engine.h" -#if defined(__APPLE__) -# include -#else -# include -#endif - namespace LinuxSampler { namespace gig { InstrumentResourceManager Engine::instruments; @@ -96,14 +90,17 @@ else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); } + /** + * Constructor + */ Engine::Engine() { pAudioOutputDevice = NULL; pDiskThread = NULL; pEventGenerator = NULL; - pSysexBuffer = new RingBuffer(SYSEX_BUFFER_SIZE, 0); - pEventQueue = new RingBuffer(MAX_EVENTS_PER_FRAGMENT, 0); - pEventPool = new Pool(MAX_EVENTS_PER_FRAGMENT); - pVoicePool = new Pool(MAX_AUDIO_VOICES); + pSysexBuffer = new RingBuffer(CONFIG_SYSEX_BUFFER_SIZE, 0); + pEventQueue = new RingBuffer(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0); + pEventPool = new Pool(CONFIG_MAX_EVENTS_PER_FRAGMENT); + pVoicePool = new Pool(CONFIG_MAX_VOICES); pVoiceStealingQueue = new RTList(pEventPool); pGlobalEvents = new RTList(pEventPool); for (RTList::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { @@ -111,13 +108,13 @@ } pVoicePool->clear(); - pSynthesisParameters[0] = NULL; // we allocate when an audio device is connected - pBasicFilterParameters = NULL; - pMainFilterParameters = NULL; - ResetInternal(); + ResetScaleTuning(); } + /** + * Destructor + */ Engine::~Engine() { if (pDiskThread) { dmsg(1,("Stopping disk thread...")); @@ -132,9 +129,6 @@ delete pVoicePool; } if (pEventGenerator) delete pEventGenerator; - if (pMainFilterParameters) delete[] pMainFilterParameters; - if (pBasicFilterParameters) delete[] pBasicFilterParameters; - if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); if (pVoiceStealingQueue) delete pVoiceStealingQueue; if (pSysexBuffer) delete pSysexBuffer; EngineFactory::Destroy(this); @@ -165,6 +159,7 @@ void Engine::Reset() { DisableAndLock(); ResetInternal(); + ResetScaleTuning(); Enable(); } @@ -178,12 +173,11 @@ // reset voice stealing parameters pVoiceStealingQueue->clear(); - itLastStolenVoice = RTList::Iterator(); - iuiLastStolenKey = RTList::Iterator(); - pLastStolenChannel = NULL; - - // reset to normal chromatic scale (means equal temper) - memset(&ScaleTuning[0], 0x00, 12); + itLastStolenVoice = RTList::Iterator(); + itLastStolenVoiceGlobally = RTList::Iterator(); + iuiLastStolenKey = RTList::Iterator(); + iuiLastStolenKeyGlobally = RTList::Iterator(); + pLastStolenChannel = NULL; // reset all voices for (RTList::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { @@ -196,8 +190,25 @@ // delete all input events pEventQueue->init(); + pSysexBuffer->init(); } + /** + * Reset to normal, chromatic scale (means equal tempered). + */ + void Engine::ResetScaleTuning() { + memset(&ScaleTuning[0], 0x00, 12); + } + + /** + * Connect this engine instance with the given audio output device. + * This method will be called when an Engine instance is created. + * All of the engine's data structures which are dependant to the used + * audio output device / driver will be (re)allocated and / or + * adjusted appropriately. + * + * @param pAudioOut - audio output device to connect to + */ void Engine::Connect(AudioOutputDevice* pAudioOut) { pAudioOutputDevice = pAudioOut; @@ -216,9 +227,20 @@ this->SampleRate = pAudioOutputDevice->SampleRate(); // FIXME: audio drivers with varying fragment sizes might be a problem here - MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1; - if (MaxFadeOutPos < 0) - throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h too big for current audio fragment size / sampling rate!"); + MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1; + if (MaxFadeOutPos < 0) { + std::cerr << "gig::Engine: WARNING, CONFIG_EG_MIN_RELEASE_TIME " + << "too big for current audio fragment size & sampling rate! " + << "May lead to click sounds if voice stealing chimes in!\n" << std::flush; + // force volume ramp downs at the beginning of each fragment + MaxFadeOutPos = 0; + // lower minimum release time + const float minReleaseTime = (float) MaxSamplesPerCycle / (float) SampleRate; + for (RTList::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { + iterVoice->EG1.CalculateFadeOutCoeff(minReleaseTime, SampleRate); + } + pVoicePool->clear(); + } // (re)create disk thread if (this->pDiskThread) { @@ -227,7 +249,7 @@ delete this->pDiskThread; dmsg(1,("OK\n")); } - 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 if (!pDiskThread) { dmsg(0,("gig::Engine new diskthread = NULL\n")); exit(EXIT_FAILURE); @@ -243,23 +265,6 @@ if (pEventGenerator) delete pEventGenerator; pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); - // (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()]; - dmsg(1,("Starting disk thread...")); pDiskThread->StartThread(); dmsg(1,("OK\n")); @@ -272,6 +277,9 @@ } } + /** + * Clear all engine global event lists. + */ void Engine::ClearEventLists() { pGlobalEvents->clear(); } @@ -334,6 +342,11 @@ // update time of start and end of this audio fragment (as events' time stamps relate to this) pEventGenerator->UpdateFragmentTime(Samples); + // We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned + // in each audio fragment. All subsequent request for spawning new + // voices in the same audio fragment will be ignored. + VoiceSpawnsLeft = CONFIG_MAX_VOICES; + // get all events from the engine's global input event queue which belong to the current fragment // (these are usually just SysEx messages) ImportEvents(Samples); @@ -352,15 +365,9 @@ } } - // We only allow a maximum of MAX_AUDIO_VOICES voices to be stolen - // in each audio fragment. All subsequent request for spawning new - // voices in the same audio fragment will be ignored. - VoiceTheftsLeft = MAX_AUDIO_VOICES; - // reset internal voice counter (just for statistic of active voices) ActiveVoiceCountTemp = 0; - // handle events on all engine channels for (int i = 0; i < engineChannels.size(); i++) { if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded @@ -388,17 +395,25 @@ // reset voice stealing for the next audio fragment pVoiceStealingQueue->clear(); - itLastStolenVoice = RTList::Iterator(); - iuiLastStolenKey = RTList::Iterator(); - pLastStolenChannel = NULL; // just some statistics about this engine instance ActiveVoiceCount = ActiveVoiceCountTemp; if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; + FrameTime += Samples; + return 0; } + /** + * Dispatch and handle all events in this audio fragment for the given + * engine channel. + * + * @param pEngineChannel - engine channel on which events should be + * processed + * @param Samples - amount of sample points to be processed in + * this audio fragment cycle + */ void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) { // get all events from the engine channels's input event queue which belong to the current fragment // (these are the common events like NoteOn, NoteOff, ControlChange, etc.) @@ -429,9 +444,29 @@ } } } + + // reset voice stealing for the next engine channel (or next audio fragment) + itLastStolenVoice = RTList::Iterator(); + itLastStolenVoiceGlobally = RTList::Iterator(); + iuiLastStolenKey = RTList::Iterator(); + iuiLastStolenKeyGlobally = RTList::Iterator(); + pLastStolenChannel = NULL; } + /** + * Render all 'normal' voices (that is voices which were not stolen in + * this fragment) on the given engine channel. + * + * @param pEngineChannel - engine channel on which audio should be + * rendered + * @param Samples - amount of sample points to be rendered in + * this audio fragment cycle + */ void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) { + #if !CONFIG_PROCESS_MUTED_CHANNELS + if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted + #endif + RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); RTList::Iterator end = pEngineChannel->pActiveKeys->end(); while (iuiKey != end) { // iterate through all active keys @@ -451,13 +486,26 @@ } } + /** + * Render all stolen voices (only voices which were stolen in this + * fragment) on the given engine channel. Stolen voices are rendered + * after all normal voices have been rendered; this is needed to render + * audio of those voices which were selected for voice stealing until + * the point were the stealing (that is the take over of the voice) + * actually happened. + * + * @param pEngineChannel - engine channel on which audio should be + * rendered + * @param Samples - amount of sample points to be rendered in + * this audio fragment cycle + */ void Engine::RenderStolenVoices(uint Samples) { RTList::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); RTList::Iterator end = pVoiceStealingQueue->end(); for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel; Pool::Iterator itNewVoice = - LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); + LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false); if (itNewVoice) { itNewVoice->Render(Samples); if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active @@ -466,9 +514,21 @@ } } else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); + + // we need to clear the key's event list explicitly here in case key was never active + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key]; + pKey->VoiceTheftsQueued--; + if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear(); } } + /** + * Free all keys which have turned inactive in this audio fragment, from + * the list of active keys and clear all event lists on that engine + * channel. + * + * @param pEngineChannel - engine channel to cleanup + */ void Engine::PostProcess(EngineChannel* pEngineChannel) { // free all keys which have no active voices left { @@ -478,8 +538,8 @@ midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; ++iuiKey; if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey); - #if DEVMODE - else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) + #if CONFIG_DEVMODE + else { // just a sanity check for debugging RTList::Iterator itVoice = pKey->pActiveVoices->first(); RTList::Iterator itVoicesEnd = pKey->pActiveVoices->end(); for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key @@ -488,7 +548,7 @@ } } } - #endif // DEVMODE + #endif // CONFIG_DEVMODE } } @@ -523,7 +583,7 @@ // finally place sysex event into input event queue pEventQueue->push(&event); } - 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)); } else dmsg(1,("Engine: Input event queue full!")); } @@ -535,8 +595,40 @@ * @param itNoteOnEvent - key, velocity and time stamp of the event */ void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOnEvent) { + #if !CONFIG_PROCESS_MUTED_CHANNELS + if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted + #endif const int key = itNoteOnEvent->Param.Note.Key; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; + + // move note on event to the key's own event list + RTList::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); + + // if Solo Mode then kill all already active voices + if (pEngineChannel->SoloMode) { + Pool::Iterator itYoungestKey = pEngineChannel->pActiveKeys->last(); + if (itYoungestKey) { + const int iYoungestKey = *itYoungestKey; + const midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[iYoungestKey]; + if (pOtherKey->Active) { + // get final portamento position of currently active voice + if (pEngineChannel->PortamentoMode) { + RTList::Iterator itVoice = pOtherKey->pActiveVoices->last(); + if (itVoice) itVoice->UpdatePortamentoPos(itNoteOnEventOnKeyList); + } + // kill all voices on the (other) key + RTList::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); + RTList::Iterator end = pOtherKey->pActiveVoices->end(); + for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { + if (itVoiceToBeKilled->Type != Voice::type_release_trigger) + itVoiceToBeKilled->Kill(itNoteOnEventOnKeyList); + } + } + } + // set this key as 'currently active solo key' + pEngineChannel->SoloKey = key; + } // Change key dimension value if key is in keyswitching area { @@ -546,23 +638,20 @@ (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); } - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; - pKey->KeyPressed = true; // the MIDI key was now pressed down + pKey->Velocity = itNoteOnEventOnKeyList->Param.Note.Velocity; + pKey->NoteOnTime = FrameTime + itNoteOnEventOnKeyList->FragmentPos(); // will be used to calculate note length // cancel release process of voices on this key if needed if (pKey->Active && !pEngineChannel->SustainPedal) { RTList::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); if (itCancelReleaseEvent) { - *itCancelReleaseEvent = *itNoteOnEvent; // copy event + *itCancelReleaseEvent = *itNoteOnEventOnKeyList; // copy event itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type } else dmsg(1,("Event pool emtpy!\n")); } - // move note on event to the key's own event list - RTList::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); - // allocate and trigger new voice(s) for the key { // first, get total amount of required voices (dependant on amount of layers) @@ -571,10 +660,15 @@ int voicesRequired = pRegion->Layers; // now launch the required amount of voices for (int i = 0; i < voicesRequired; i++) - LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true); + LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true, true); } } + // if neither a voice was spawned or postponed then remove note on event from key again + if (!pKey->Active && !pKey->VoiceTheftsQueued) + pKey->pEvents->free(itNoteOnEventOnKeyList); + + if (!pEngineChannel->SoloMode || pEngineChannel->PortamentoPos < 0.0f) pEngineChannel->PortamentoPos = (float) key; pKey->RoundRobinIndex++; } @@ -588,42 +682,115 @@ * @param itNoteOffEvent - key, velocity and time stamp of the event */ void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOffEvent) { - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; + #if !CONFIG_PROCESS_MUTED_CHANNELS + if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted + #endif + const int iKey = itNoteOffEvent->Param.Note.Key; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey]; pKey->KeyPressed = false; // the MIDI key was now released - // release voices on this key if needed - if (pKey->Active && !pEngineChannel->SustainPedal) { - itNoteOffEvent->Type = Event::type_release; // transform event type - } - // move event to the key's own event list RTList::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); - // spawn release triggered voice(s) if needed - if (pKey->ReleaseTrigger) { - // first, get total amount of required voices (dependant on amount of layers) - ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key); - if (pRegion) { - int voicesRequired = pRegion->Layers; - // now launch the required amount of voices - for (int i = 0; i < voicesRequired; i++) - LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples + bool bShouldRelease = pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEventOnKeyList->Param.Note.Key); + + // in case Solo Mode is enabled, kill all voices on this key and respawn a voice on the highest pressed key (if any) + if (pEngineChannel->SoloMode) { //TODO: this feels like too much code just for handling solo mode :P + bool bOtherKeysPressed = false; + if (iKey == pEngineChannel->SoloKey) { + pEngineChannel->SoloKey = -1; + // if there's still a key pressed down, respawn a voice (group) on the highest key + for (int i = 127; i > 0; i--) { + midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[i]; + if (pOtherKey->KeyPressed) { + bOtherKeysPressed = true; + // make the other key the new 'currently active solo key' + pEngineChannel->SoloKey = i; + // get final portamento position of currently active voice + if (pEngineChannel->PortamentoMode) { + RTList::Iterator itVoice = pKey->pActiveVoices->first(); + if (itVoice) itVoice->UpdatePortamentoPos(itNoteOffEventOnKeyList); + } + // create a pseudo note on event + RTList::Iterator itPseudoNoteOnEvent = pOtherKey->pEvents->allocAppend(); + if (itPseudoNoteOnEvent) { + // copy event + *itPseudoNoteOnEvent = *itNoteOffEventOnKeyList; + // transform event to a note on event + itPseudoNoteOnEvent->Type = Event::type_note_on; + itPseudoNoteOnEvent->Param.Note.Key = i; + itPseudoNoteOnEvent->Param.Note.Velocity = pOtherKey->Velocity; + // allocate and trigger new voice(s) for the other key + { + // first, get total amount of required voices (dependant on amount of layers) + ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(i); + if (pRegion) { + int voicesRequired = pRegion->Layers; + // now launch the required amount of voices + for (int iLayer = 0; iLayer < voicesRequired; iLayer++) + LaunchVoice(pEngineChannel, itPseudoNoteOnEvent, iLayer, false, true, false); + } + } + // if neither a voice was spawned or postponed then remove note on event from key again + if (!pOtherKey->Active && !pOtherKey->VoiceTheftsQueued) + pOtherKey->pEvents->free(itPseudoNoteOnEvent); + + } else dmsg(1,("Could not respawn voice, no free event left\n")); + break; // done + } + } + } + if (bOtherKeysPressed) { + if (pKey->Active) { // kill all voices on this key + bShouldRelease = false; // no need to release, as we kill it here + RTList::Iterator itVoiceToBeKilled = pKey->pActiveVoices->first(); + RTList::Iterator end = pKey->pActiveVoices->end(); + for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { + if (itVoiceToBeKilled->Type != Voice::type_release_trigger) + itVoiceToBeKilled->Kill(itNoteOffEventOnKeyList); + } + } + } else pEngineChannel->PortamentoPos = -1.0f; + } + + // if no solo mode (the usual case) or if solo mode and no other key pressed, then release voices on this key if needed + if (bShouldRelease) { + itNoteOffEventOnKeyList->Type = Event::type_release; // transform event type + + // spawn release triggered voice(s) if needed + if (pKey->ReleaseTrigger) { + // first, get total amount of required voices (dependant on amount of layers) + ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key); + if (pRegion) { + int voicesRequired = pRegion->Layers; + + // MIDI note-on velocity is used instead of note-off velocity + itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity; + + // now launch the required amount of voices + for (int i = 0; i < voicesRequired; i++) + LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples + } + pKey->ReleaseTrigger = false; } - pKey->ReleaseTrigger = false; } + + // if neither a voice was spawned or postponed on this key then remove note off event from key again + if (!pKey->Active && !pKey->VoiceTheftsQueued) + pKey->pEvents->free(itNoteOffEventOnKeyList); } /** - * Moves pitchbend event from the general (input) event list to the pitch - * event list. + * Moves pitchbend event from the general (input) event list to the engine + * channel's event list. It will actually processed later by the + * respective voice. * * @param pEngineChannel - engine channel on which this event occured on * @param itPitchbendEvent - absolute pitch value and time stamp of the event */ void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool::Iterator& itPitchbendEvent) { pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value - itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]); } /** @@ -640,41 +807,175 @@ * @param VoiceStealing - if voice stealing should be performed * when there is no free voice * (optional, default = true) + * @param HandleKeyGroupConflicts - if voices should be killed due to a + * key group conflict * @returns pointer to new voice or NULL if there was no free voice or * if the voice wasn't triggered (for example when no region is * defined for the given key). */ - Pool::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) { - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; + Pool::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing, bool HandleKeyGroupConflicts) { + int MIDIKey = itNoteOnEvent->Param.Note.Key; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[MIDIKey]; + ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(MIDIKey); + + // if nothing defined for this key + if (!pRegion) return Pool::Iterator(); // nothing to do + + // only mark the first voice of a layered voice (group) to be in a + // key group, so the layered voices won't kill each other + int iKeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0; + + // handle key group (a.k.a. exclusive group) conflicts + if (HandleKeyGroupConflicts) { + if (iKeyGroup) { // if this voice / key belongs to a key group + uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[iKeyGroup]; + if (*ppKeyGroup) { // if there's already an active key in that key group + midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup]; + // kill all voices on the (other) key + RTList::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); + RTList::Iterator end = pOtherKey->pActiveVoices->end(); + for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { + if (itVoiceToBeKilled->Type != Voice::type_release_trigger) { + itVoiceToBeKilled->Kill(itNoteOnEvent); + --VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict + } + } + } + } + } + + Voice::type_t VoiceType = Voice::type_normal; + + // get current dimension values to select the right dimension region + //TODO: for stolen voices this dimension region selection block is processed twice, this should be changed + //FIXME: controller values for selecting the dimension region here are currently not sample accurate + uint DimValues[8] = { 0 }; + for (int i = pRegion->Dimensions - 1; i >= 0; i--) { + switch (pRegion->pDimensionDefinitions[i].dimension) { + case ::gig::dimension_samplechannel: + DimValues[i] = 0; //TODO: we currently ignore this dimension + break; + case ::gig::dimension_layer: + DimValues[i] = iLayer; + break; + case ::gig::dimension_velocity: + DimValues[i] = itNoteOnEvent->Param.Note.Velocity; + break; + case ::gig::dimension_channelaftertouch: + DimValues[i] = 0; //TODO: we currently ignore this dimension + break; + case ::gig::dimension_releasetrigger: + VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal; + DimValues[i] = (uint) ReleaseTriggerVoice; + break; + case ::gig::dimension_keyboard: + DimValues[i] = (uint) pEngineChannel->CurrentKeyDimension; + break; + case ::gig::dimension_roundrobin: + DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on + break; + case ::gig::dimension_random: + RandomSeed = RandomSeed * 1103515245 + 12345; // classic pseudo random number generator + DimValues[i] = (uint) RandomSeed >> (32 - pRegion->pDimensionDefinitions[i].bits); // highest bits are most random + break; + case ::gig::dimension_modwheel: + DimValues[i] = pEngineChannel->ControllerTable[1]; + break; + case ::gig::dimension_breath: + DimValues[i] = pEngineChannel->ControllerTable[2]; + break; + case ::gig::dimension_foot: + DimValues[i] = pEngineChannel->ControllerTable[4]; + break; + case ::gig::dimension_portamentotime: + DimValues[i] = pEngineChannel->ControllerTable[5]; + break; + case ::gig::dimension_effect1: + DimValues[i] = pEngineChannel->ControllerTable[12]; + break; + case ::gig::dimension_effect2: + DimValues[i] = pEngineChannel->ControllerTable[13]; + break; + case ::gig::dimension_genpurpose1: + DimValues[i] = pEngineChannel->ControllerTable[16]; + break; + case ::gig::dimension_genpurpose2: + DimValues[i] = pEngineChannel->ControllerTable[17]; + break; + case ::gig::dimension_genpurpose3: + DimValues[i] = pEngineChannel->ControllerTable[18]; + break; + case ::gig::dimension_genpurpose4: + DimValues[i] = pEngineChannel->ControllerTable[19]; + break; + case ::gig::dimension_sustainpedal: + DimValues[i] = pEngineChannel->ControllerTable[64]; + break; + case ::gig::dimension_portamento: + DimValues[i] = pEngineChannel->ControllerTable[65]; + break; + case ::gig::dimension_sostenutopedal: + DimValues[i] = pEngineChannel->ControllerTable[66]; + break; + case ::gig::dimension_softpedal: + DimValues[i] = pEngineChannel->ControllerTable[67]; + break; + case ::gig::dimension_genpurpose5: + DimValues[i] = pEngineChannel->ControllerTable[80]; + break; + case ::gig::dimension_genpurpose6: + DimValues[i] = pEngineChannel->ControllerTable[81]; + break; + case ::gig::dimension_genpurpose7: + DimValues[i] = pEngineChannel->ControllerTable[82]; + break; + case ::gig::dimension_genpurpose8: + DimValues[i] = pEngineChannel->ControllerTable[83]; + break; + case ::gig::dimension_effect1depth: + DimValues[i] = pEngineChannel->ControllerTable[91]; + break; + case ::gig::dimension_effect2depth: + DimValues[i] = pEngineChannel->ControllerTable[92]; + break; + case ::gig::dimension_effect3depth: + DimValues[i] = pEngineChannel->ControllerTable[93]; + break; + case ::gig::dimension_effect4depth: + DimValues[i] = pEngineChannel->ControllerTable[94]; + break; + case ::gig::dimension_effect5depth: + DimValues[i] = pEngineChannel->ControllerTable[95]; + break; + case ::gig::dimension_none: + std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush; + break; + default: + std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush; + } + } + ::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues); + + // no need to continue if sample is silent + if (!pDimRgn->pSample || !pDimRgn->pSample->SamplesTotal) return Pool::Iterator(); // allocate a new voice for the key Pool::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); if (itNewVoice) { // launch the new voice - if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pEngineChannel->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) { + if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pDimRgn, VoiceType, iKeyGroup) < 0) { dmsg(4,("Voice not triggered\n")); pKey->pActiveVoices->free(itNewVoice); } else { // on success - uint** ppKeyGroup = NULL; - if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group - ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; - if (*ppKeyGroup) { // if there's already an active key in that key group - midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup]; - // kill all voices on the (other) key - RTList::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); - RTList::Iterator end = pOtherKey->pActiveVoices->end(); - for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { - if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent); - } - } - } + --VoiceSpawnsLeft; if (!pKey->Active) { // mark as active key pKey->Active = true; pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend(); *pKey->itSelf = itNoteOnEvent->Param.Note.Key; } if (itNewVoice->KeyGroup) { + uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; *ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group } if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s) @@ -682,18 +983,19 @@ } } else if (VoiceStealing) { - // try to steal one voice - StealVoice(pEngineChannel, itNoteOnEvent); - - // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died - RTList::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); - if (itStealEvent) { - *itStealEvent = *itNoteOnEvent; // copy event - itStealEvent->Param.Note.Layer = iLayer; - itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; + int result = StealVoice(pEngineChannel, itNoteOnEvent); + if (!result) { // voice stolen successfully + // put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died + RTList::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); + if (itStealEvent) { + *itStealEvent = *itNoteOnEvent; // copy event + itStealEvent->Param.Note.Layer = iLayer; + itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; + pKey->VoiceTheftsQueued++; + } + else dmsg(1,("Voice stealing queue full!\n")); } - else dmsg(1,("Voice stealing queue full!\n")); } return Pool::Iterator(); // no free voice or error @@ -707,55 +1009,65 @@ * * @param pEngineChannel - engine channel on which this event occured on * @param itNoteOnEvent - key, velocity and time stamp of the event + * @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing */ - void Engine::StealVoice(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOnEvent) { - if (!VoiceTheftsLeft) { - dmsg(1,("Max. voice thefts per audio fragment reached (you may raise MAX_AUDIO_VOICES).\n")); - return; + int Engine::StealVoice(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOnEvent) { + if (VoiceSpawnsLeft <= 0) { + dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n")); + return -1; } if (!pEventPool->poolIsEmpty()) { RTList::Iterator itSelectedVoice; // Select one voice for voice stealing - switch (VOICE_STEAL_ALGORITHM) { + switch (CONFIG_VOICE_STEAL_ALGO) { // try to pick the oldest voice on the key where the new // voice should be spawned, if there is no voice on that - // key, or no voice left to kill there, then procceed with + // key, or no voice left to kill, then procceed with // 'oldestkey' algorithm case voice_steal_algo_oldestvoiceonkey: { - #if 0 // FIXME: broken midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; - if (this->itLastStolenVoice) { - itSelectedVoice = this->itLastStolenVoice; - ++itSelectedVoice; - } - else { // no voice stolen in this audio fragment cycle yet - itSelectedVoice = pSelectedKey->pActiveVoices->first(); - } - if (itSelectedVoice) { - iuiSelectedKey = pSelectedKey->itSelf; - break; // selection succeeded - } - #endif + itSelectedVoice = pSelectedKey->pActiveVoices->first(); + // proceed iterating if voice was created in this fragment cycle + while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; + // if we haven't found a voice then proceed with algorithm 'oldestkey' + if (itSelectedVoice && itSelectedVoice->IsStealable()) break; } // no break - intentional ! // try to pick the oldest voice on the oldest active key + // from the same engine channel // (caution: must stay after 'oldestvoiceonkey' algorithm !) case voice_steal_algo_oldestkey: { + // if we already stole in this fragment, try to proceed on same key if (this->itLastStolenVoice) { itSelectedVoice = this->itLastStolenVoice; - ++itSelectedVoice; - if (itSelectedVoice) break; // selection succeeded - RTList::Iterator iuiSelectedKey = this->iuiLastStolenKey; - ++iuiSelectedKey; - if (iuiSelectedKey) { - this->iuiLastStolenKey = iuiSelectedKey; - midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; - itSelectedVoice = pSelectedKey->pActiveVoices->first(); + do { + ++itSelectedVoice; + } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle + // found a "stealable" voice ? + if (itSelectedVoice && itSelectedVoice->IsStealable()) { + // remember which voice we stole, so we can simply proceed on next voice stealing + this->itLastStolenVoice = itSelectedVoice; + break; // selection succeeded + } + } + // get (next) oldest key + RTList::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first(); + while (iuiSelectedKey) { + midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; + itSelectedVoice = pSelectedKey->pActiveVoices->first(); + // proceed iterating if voice was created in this fragment cycle + while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; + // found a "stealable" voice ? + if (itSelectedVoice && itSelectedVoice->IsStealable()) { + // remember which voice on which key we stole, so we can simply proceed on next voice stealing + this->iuiLastStolenKey = iuiSelectedKey; + this->itLastStolenVoice = itSelectedVoice; break; // selection succeeded } + ++iuiSelectedKey; // get next oldest key } break; } @@ -764,40 +1076,96 @@ case voice_steal_algo_none: default: { dmsg(1,("No free voice (voice stealing disabled)!\n")); - return; + return -1; } } - // steal oldest voice on the oldest key from this or any other engine channel - if (!itSelectedVoice) { - EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel; - int iChannelIndex = pSelectedChannel->iEngineIndexSelf; - while (true) { - RTList::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first(); - if (iuiSelectedKey) { + // if we couldn't steal a voice from the same engine channel then + // steal oldest voice on the oldest key from any other engine channel + // (the smaller engine channel number, the higher priority) + if (!itSelectedVoice || !itSelectedVoice->IsStealable()) { + EngineChannel* pSelectedChannel; + int iChannelIndex; + // select engine channel + if (pLastStolenChannel) { + pSelectedChannel = pLastStolenChannel; + iChannelIndex = pSelectedChannel->iEngineIndexSelf; + } else { // pick the engine channel followed by this engine channel + iChannelIndex = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size(); + pSelectedChannel = engineChannels[iChannelIndex]; + } + + // if we already stole in this fragment, try to proceed on same key + if (this->itLastStolenVoiceGlobally) { + itSelectedVoice = this->itLastStolenVoiceGlobally; + do { + ++itSelectedVoice; + } while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle + } + + #if CONFIG_DEVMODE + EngineChannel* pBegin = pSelectedChannel; // to detect endless loop + #endif // CONFIG_DEVMODE + + // did we find a 'stealable' voice? + if (itSelectedVoice && itSelectedVoice->IsStealable()) { + // remember which voice we stole, so we can simply proceed on next voice stealing + this->itLastStolenVoiceGlobally = itSelectedVoice; + } else while (true) { // iterate through engine channels + // get (next) oldest key + RTList::Iterator iuiSelectedKey = (this->iuiLastStolenKeyGlobally) ? ++this->iuiLastStolenKeyGlobally : pSelectedChannel->pActiveKeys->first(); + this->iuiLastStolenKeyGlobally = RTList::Iterator(); // to prevent endless loop (see line above) + while (iuiSelectedKey) { midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey]; - itSelectedVoice = pSelectedKey->pActiveVoices->first(); - iuiLastStolenKey = iuiSelectedKey; - pLastStolenChannel = pSelectedChannel; - break; // selection succeeded + itSelectedVoice = pSelectedKey->pActiveVoices->first(); + // proceed iterating if voice was created in this fragment cycle + while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; + // found a "stealable" voice ? + if (itSelectedVoice && itSelectedVoice->IsStealable()) { + // remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing + this->iuiLastStolenKeyGlobally = iuiSelectedKey; + this->itLastStolenVoiceGlobally = itSelectedVoice; + this->pLastStolenChannel = pSelectedChannel; + goto stealable_voice_found; // selection succeeded + } + ++iuiSelectedKey; // get next key on current engine channel } + // get next engine channel iChannelIndex = (iChannelIndex + 1) % engineChannels.size(); - pSelectedChannel = engineChannels[iChannelIndex]; + pSelectedChannel = engineChannels[iChannelIndex]; + + #if CONFIG_DEVMODE + if (pSelectedChannel == pBegin) { + dmsg(1,("FATAL ERROR: voice stealing endless loop!\n")); + dmsg(1,("VoiceSpawnsLeft=%d.\n", VoiceSpawnsLeft)); + dmsg(1,("Exiting.\n")); + exit(-1); + } + #endif // CONFIG_DEVMODE } } - //FIXME: can be removed, just a sanity check for debugging - if (!itSelectedVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); + // jump point if a 'stealable' voice was found + stealable_voice_found: + + #if CONFIG_DEVMODE + if (!itSelectedVoice->IsActive()) { + dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); + return -1; + } + #endif // CONFIG_DEVMODE // now kill the selected voice itSelectedVoice->Kill(itNoteOnEvent); - // remember which voice we stole, so we can simply proceed for the next voice stealing - itLastStolenVoice = itSelectedVoice; + --VoiceSpawnsLeft; - --VoiceTheftsLeft; + return 0; // success + } + else { + dmsg(1,("Event pool emtpy!\n")); + return -1; } - else dmsg(1,("Event pool emtpy!\n")); } /** @@ -856,67 +1224,145 @@ void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool::Iterator& itControlChangeEvent) { dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); + // update controller value in the engine channel's controller table + pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; + switch (itControlChangeEvent->Param.CC.Controller) { + case 5: { // portamento time + pEngineChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN; + break; + } case 7: { // volume //TODO: not sample accurate yet - pEngineChannel->GlobalVolume = (float) itControlChangeEvent->Param.CC.Value / 127.0f; + pEngineChannel->GlobalVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value] * CONFIG_GLOBAL_ATTENUATION; + pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag break; } case 10: { // panpot //TODO: not sample accurate yet - const int pan = (int) itControlChangeEvent->Param.CC.Value - 64; - pEngineChannel->GlobalPanLeft = 1.0f - float(RTMath::Max(pan, 0)) / 63.0f; - pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f; + pEngineChannel->GlobalPanLeft = PanCurve[128 - itControlChangeEvent->Param.CC.Value]; + pEngineChannel->GlobalPanRight = PanCurve[itControlChangeEvent->Param.CC.Value]; break; } case 64: { // sustain if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { - dmsg(4,("PEDAL DOWN\n")); + dmsg(4,("DAMPER (RIGHT) PEDAL DOWN\n")); pEngineChannel->SustainPedal = true; + #if !CONFIG_PROCESS_MUTED_CHANNELS + if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted + #endif + // cancel release process of voices if necessary RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); - if (iuiKey) { - itControlChangeEvent->Type = Event::type_cancel_release; // transform event type - while (iuiKey) { - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; - ++iuiKey; - if (!pKey->KeyPressed) { - RTList::Iterator itNewEvent = pKey->pEvents->allocAppend(); - if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list - else dmsg(1,("Event pool emtpy!\n")); + for (; iuiKey; ++iuiKey) { + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; + if (!pKey->KeyPressed) { + RTList::Iterator itNewEvent = pKey->pEvents->allocAppend(); + if (itNewEvent) { + *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list + itNewEvent->Type = Event::type_cancel_release; // transform event type } + else dmsg(1,("Event pool emtpy!\n")); } } } if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { - dmsg(4,("PEDAL UP\n")); + dmsg(4,("DAMPER (RIGHT) PEDAL UP\n")); pEngineChannel->SustainPedal = false; + #if !CONFIG_PROCESS_MUTED_CHANNELS + if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted + #endif + // release voices if their respective key is not pressed RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); - if (iuiKey) { - itControlChangeEvent->Type = Event::type_release; // transform event type - while (iuiKey) { - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; - ++iuiKey; - if (!pKey->KeyPressed) { - RTList::Iterator itNewEvent = pKey->pEvents->allocAppend(); - if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list - else dmsg(1,("Event pool emtpy!\n")); + for (; iuiKey; ++iuiKey) { + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; + if (!pKey->KeyPressed && ShouldReleaseVoice(pEngineChannel, *iuiKey)) { + RTList::Iterator itNewEvent = pKey->pEvents->allocAppend(); + if (itNewEvent) { + *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list + itNewEvent->Type = Event::type_release; // transform event type } + else dmsg(1,("Event pool emtpy!\n")); + } + } + } + break; + } + case 65: { // portamento on / off + KillAllVoices(pEngineChannel, itControlChangeEvent); + pEngineChannel->PortamentoMode = itControlChangeEvent->Param.CC.Value >= 64; + break; + } + case 66: { // sostenuto + if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SostenutoPedal) { + dmsg(4,("SOSTENUTO (CENTER) PEDAL DOWN\n")); + pEngineChannel->SostenutoPedal = true; + + #if !CONFIG_PROCESS_MUTED_CHANNELS + if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted + #endif + + SostenutoKeyCount = 0; + // Remeber the pressed keys + RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); + for (; iuiKey; ++iuiKey) { + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; + if (pKey->KeyPressed && SostenutoKeyCount < 128) SostenutoKeys[SostenutoKeyCount++] = *iuiKey; + } + } + if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SostenutoPedal) { + dmsg(4,("SOSTENUTO (CENTER) PEDAL UP\n")); + pEngineChannel->SostenutoPedal = false; + + #if !CONFIG_PROCESS_MUTED_CHANNELS + if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted + #endif + + // release voices if the damper pedal is up and their respective key is not pressed + for (int i = 0; i < SostenutoKeyCount; i++) { + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[SostenutoKeys[i]]; + if (!pKey->KeyPressed && !pEngineChannel->SustainPedal) { + RTList::Iterator itNewEvent = pKey->pEvents->allocAppend(); + if (itNewEvent) { + *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list + itNewEvent->Type = Event::type_release; // transform event type + } + else dmsg(1,("Event pool emtpy!\n")); } } } break; } - } - // update controller value in the engine's controller table - pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; - // move event from the unsorted event list to the control change event list - itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents); + // Channel Mode Messages + + case 120: { // all sound off + KillAllVoices(pEngineChannel, itControlChangeEvent); + break; + } + case 121: { // reset all controllers + pEngineChannel->ResetControllers(); + break; + } + case 123: { // all notes off + ReleaseAllVoices(pEngineChannel, itControlChangeEvent); + break; + } + case 126: { // mono mode on + KillAllVoices(pEngineChannel, itControlChangeEvent); + pEngineChannel->SoloMode = true; + break; + } + case 127: { // poly mode on + KillAllVoices(pEngineChannel, itControlChangeEvent); + pEngineChannel->SoloMode = false; + break; + } + } } /** @@ -934,6 +1380,7 @@ switch (id) { case 0x41: { // Roland + dmsg(3,("Roland Sysex\n")); uint8_t device_id, model_id, cmd_id; if (!reader.pop(&device_id)) goto free_sysex_data; if (!reader.pop(&model_id)) goto free_sysex_data; @@ -946,19 +1393,26 @@ const RingBuffer::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters + dmsg(3,("\tSystem Parameter\n")); } else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters + dmsg(3,("\tCommon Parameter\n")); } else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) - switch (addr[3]) { + dmsg(3,("\tPart Parameter\n")); + switch (addr[2]) { case 0x40: { // scale tuning + dmsg(3,("\t\tScale Tuning\n")); uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; uint8_t checksum; - if (!reader.pop(&checksum)) goto free_sysex_data; - if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data; + if (!reader.pop(&checksum)) goto free_sysex_data; + #if CONFIG_ASSERT_GS_SYSEX_CHECKSUM + if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data; + #endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; AdjustScale((int8_t*) scale_tunes); + dmsg(3,("\t\t\tNew scale applied.\n")); break; } } @@ -1003,18 +1457,67 @@ } /** - * Initialize the parameter sequence for the modulation destination given by - * by 'dst' with the constant value given by val. + * Releases all voices on an engine channel. All voices will go into + * the release stage and thus it might take some time (e.g. dependant to + * their envelope release time) until they actually die. + * + * @param pEngineChannel - engine channel on which all voices should be released + * @param itReleaseEvent - event which caused this releasing of all voices + */ + void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool::Iterator& itReleaseEvent) { + RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); + while (iuiKey) { + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; + ++iuiKey; + // append a 'release' event to the key's own event list + RTList::Iterator itNewEvent = pKey->pEvents->allocAppend(); + if (itNewEvent) { + *itNewEvent = *itReleaseEvent; // copy original event (to the key's event list) + itNewEvent->Type = Event::type_release; // transform event type + } + else dmsg(1,("Event pool emtpy!\n")); + } + } + + /** + * Kills all voices on an engine channel as soon as possible. Voices + * won't get into release state, their volume level will be ramped down + * as fast as possible. + * + * @param pEngineChannel - engine channel on which all voices should be killed + * @param itKillEvent - event which caused this killing of all voices + */ + void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool::Iterator& itKillEvent) { + RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); + RTList::Iterator end = pEngineChannel->pActiveKeys->end(); + while (iuiKey != end) { // iterate through all active keys + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; + ++iuiKey; + RTList::Iterator itVoice = pKey->pActiveVoices->first(); + RTList::Iterator itVoicesEnd = pKey->pActiveVoices->end(); + for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key + itVoice->Kill(itKillEvent); + --VoiceSpawnsLeft; //FIXME: just a temporary workaround, we should check the cause in StealVoice() instead + } + } + } + + /** + * Determines whether the specified voice should be released. + * + * @param pEngineChannel - The engine channel on which the voice should be checked + * @param Key - The key number + * @returns true if the specified should be released, false otherwise. */ - void Engine::ResetSynthesisParameters(Event::destination_t dst, float val) { - int maxsamples = pAudioOutputDevice->MaxSamplesPerCycle(); - float* m = &pSynthesisParameters[dst][0]; - for (int i = 0; i < maxsamples; i += 4) { - m[i] = val; - m[i+1] = val; - m[i+2] = val; - m[i+3] = val; + bool Engine::ShouldReleaseVoice(EngineChannel* pEngineChannel, int Key) { + if (pEngineChannel->SustainPedal) return false; + + if (pEngineChannel->SostenutoPedal) { + for (int i = 0; i < SostenutoKeyCount; i++) + if (Key == SostenutoKeys[i]) return false; } + + return true; } uint Engine::VoiceCount() { @@ -1046,7 +1549,7 @@ } String Engine::EngineName() { - return "GigEngine"; + return LS_GIG_ENGINE_NAME; } String Engine::Description() { @@ -1054,8 +1557,41 @@ } String Engine::Version() { - String s = "$Revision: 1.32 $"; + String s = "$Revision: 1.58 $"; return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword } + // static constant initializers + const float* Engine::VolumeCurve(InitVolumeCurve()); + const float* Engine::PanCurve(InitPanCurve()); + + float* Engine::InitVolumeCurve() { + // line-segment approximation + const float segments[] = { + 0, 0, 2, 0.0046, 16, 0.016, 31, 0.051, 45, 0.115, 54.5, 0.2, + 64.5, 0.39, 74, 0.74, 92, 1.03, 114, 1.94, 119.2, 2.2, 127, 2.2 + }; + return InitCurve(segments); + } + + float* Engine::InitPanCurve() { + // line-segment approximation + const float segments[] = { + 0, 0, 1, 0, + 2, 0.05, 31.5, 0.7, 51, 0.851, 74.5, 1.12, + 127, 1.41, 128, 1.41 + }; + return InitCurve(segments, 129); + } + + float* Engine::InitCurve(const float* segments, int size) { + float* y = new float[size]; + for (int x = 0 ; x < size ; x++) { + if (x > segments[2]) segments += 2; + y[x] = segments[1] + (x - segments[0]) * + (segments[3] - segments[1]) / (segments[2] - segments[0]); + } + return y; + } + }} // namespace LinuxSampler::gig