--- linuxsampler/trunk/src/engines/gig/Engine.cpp 2005/02/26 01:23:55 410 +++ linuxsampler/trunk/src/engines/gig/Engine.cpp 2005/02/26 02:01:14 411 @@ -3,6 +3,7 @@ * LinuxSampler - modular, streaming capable sampler * * * * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * + * Copyright (C) 2005 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 * @@ -35,33 +36,43 @@ namespace LinuxSampler { namespace gig { - InstrumentResourceManager Engine::Instruments; + InstrumentResourceManager Engine::instruments; + + std::map Engine::engines; + + Engine* Engine::AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) { + Engine* pEngine; + if (engines.count(pDevice)) { + pEngine = engines[pDevice]; + } else { + pEngine = new Engine; + pEngine->Connect(pDevice); + } + pEngine->samplerChannels.push_back(pChannel); + return pEngine; + } + + void Engine::FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) { + Engine* pEngine = engines[pDevice]; + pEngine->samplerChannels.remove(pChannel); + if (pEngine->samplerChannels.empty()) delete pEngine; + } Engine::Engine() { - pRIFF = NULL; - pGig = NULL; - pInstrument = NULL; 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); - pActiveKeys = new Pool(128); + pVoicePool = new Pool(MAX_AUDIO_VOICES); pVoiceStealingQueue = new RTList(pEventPool); pEvents = new RTList(pEventPool); pCCEvents = new RTList(pEventPool); + for (uint i = 0; i < Event::destination_count; i++) { pSynthesisEvents[i] = new RTList(pEventPool); } - for (uint i = 0; i < 128; i++) { - pMIDIKeyInfo[i].pActiveVoices = new RTList(pVoicePool); - pMIDIKeyInfo[i].KeyPressed = false; - pMIDIKeyInfo[i].Active = false; - pMIDIKeyInfo[i].ReleaseTrigger = false; - pMIDIKeyInfo[i].pEvents = new RTList(pEventPool); - } for (RTList::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { iterVoice->SetEngine(this); } @@ -71,12 +82,6 @@ pBasicFilterParameters = NULL; pMainFilterParameters = NULL; - InstrumentIdx = -1; - InstrumentStat = -1; - - AudioDeviceChannelLeft = -1; - AudioDeviceChannelRight = -1; - ResetInternal(); } @@ -87,15 +92,6 @@ delete pDiskThread; dmsg(1,("OK\n")); } - - if (pInstrument) Instruments.HandBack(pInstrument, this); - - if (pGig) delete pGig; - if (pRIFF) delete pRIFF; - for (uint i = 0; i < 128; i++) { - if (pMIDIKeyInfo[i].pActiveVoices) delete pMIDIKeyInfo[i].pActiveVoices; - if (pMIDIKeyInfo[i].pEvents) delete pMIDIKeyInfo[i].pEvents; - } for (uint i = 0; i < Event::destination_count; i++) { if (pSynthesisEvents[i]) delete pSynthesisEvents[i]; } @@ -103,17 +99,16 @@ if (pCCEvents) delete pCCEvents; if (pEventQueue) delete pEventQueue; if (pEventPool) delete pEventPool; - if (pVoicePool) { - pVoicePool->clear(); - delete pVoicePool; - } - if (pActiveKeys) delete pActiveKeys; - if (pSysexBuffer) delete pSysexBuffer; + if (pVoicePool) { + pVoicePool->clear(); + 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; } void Engine::Enable() { @@ -140,24 +135,7 @@ */ void Engine::Reset() { DisableAndLock(); - - //if (pAudioOutputDevice->IsPlaying()) { // if already running - /* - // signal audio thread not to enter render part anymore - SuspensionRequested = true; - // sleep until wakened by audio thread - pthread_mutex_lock(&__render_state_mutex); - pthread_cond_wait(&__render_exit_condition, &__render_state_mutex); - pthread_mutex_unlock(&__render_state_mutex); - */ - //} - - //if (wasplaying) pAudioOutputDevice->Stop(); - ResetInternal(); - - // signal audio thread to continue with rendering - //SuspensionRequested = false; Enable(); } @@ -166,12 +144,8 @@ * control and status variables. This method is not thread safe! */ void Engine::ResetInternal() { - Pitch = 0; - SustainPedal = false; ActiveVoiceCount = 0; ActiveVoiceCountMax = 0; - GlobalVolume = 1.0; - CurrentKeyDimension = 0; // reset voice stealing parameters itLastStolenVoice = RTList::Iterator(); @@ -181,32 +155,12 @@ // reset to normal chromatic scale (means equal temper) memset(&ScaleTuning[0], 0x00, 12); - // set all MIDI controller values to zero - memset(ControllerTable, 0x00, 128); - - // reset key info - for (uint i = 0; i < 128; i++) { - pMIDIKeyInfo[i].pActiveVoices->clear(); - pMIDIKeyInfo[i].pEvents->clear(); - pMIDIKeyInfo[i].KeyPressed = false; - pMIDIKeyInfo[i].Active = false; - pMIDIKeyInfo[i].ReleaseTrigger = false; - pMIDIKeyInfo[i].itSelf = Pool::Iterator(); - } - - // reset all key groups - map::iterator iter = ActiveKeyGroups.begin(); - for (; iter != ActiveKeyGroups.end(); iter++) iter->second = NULL; - // reset all voices for (RTList::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { iterVoice->Reset(); } pVoicePool->clear(); - // free all active keys - pActiveKeys->clear(); - // reset disk thread if (pDiskThread) pDiskThread->Reset(); @@ -214,113 +168,6 @@ pEventQueue->init(); } - /** - * More or less a workaround to set the instrument name, index and load - * status variable to zero percent immediately, that is without blocking - * the calling thread. It might be used in future for other preparations - * as well though. - * - * @param FileName - file name of the Gigasampler instrument file - * @param Instrument - index of the instrument in the .gig file - * @see LoadInstrument() - */ - void Engine::PrepareLoadInstrument(const char* FileName, uint Instrument) { - InstrumentFile = FileName; - InstrumentIdx = Instrument; - InstrumentStat = 0; - } - - /** - * Load an instrument from a .gig file. PrepareLoadInstrument() has to - * be called first to provide the information which instrument to load. - * This method will then actually start to load the instrument and block - * the calling thread until loading was completed. - * - * @returns detailed description of the method call result - * @see PrepareLoadInstrument() - */ - void Engine::LoadInstrument() { - - DisableAndLock(); - - ResetInternal(); // reset engine - - // free old instrument - if (pInstrument) { - // give old instrument back to instrument manager - Instruments.HandBack(pInstrument, this); - } - - // delete all key groups - ActiveKeyGroups.clear(); - - // request gig instrument from instrument manager - try { - instrument_id_t instrid; - instrid.FileName = InstrumentFile; - instrid.iInstrument = InstrumentIdx; - pInstrument = Instruments.Borrow(instrid, this); - if (!pInstrument) { - InstrumentStat = -1; - dmsg(1,("no instrument loaded!!!\n")); - exit(EXIT_FAILURE); - } - } - catch (RIFF::Exception e) { - InstrumentStat = -2; - String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message; - throw LinuxSamplerException(msg); - } - catch (InstrumentResourceManagerException e) { - InstrumentStat = -3; - String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message(); - throw LinuxSamplerException(msg); - } - catch (...) { - InstrumentStat = -4; - throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file."); - } - - // rebuild ActiveKeyGroups map with key groups of current instrument - for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion()) - if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL; - - InstrumentIdxName = pInstrument->pInfo->Name; - InstrumentStat = 100; - - // inform audio driver for the need of two channels - try { - if (pAudioOutputDevice) pAudioOutputDevice->AcquireChannels(2); // gig Engine only stereo - } - catch (AudioOutputException e) { - String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); - throw LinuxSamplerException(msg); - } - - Enable(); - } - - /** - * Will be called by the InstrumentResourceManager when the instrument - * we are currently using in this engine is going to be updated, so we - * can stop playback before that happens. - */ - void Engine::ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg) { - dmsg(3,("gig::Engine: Received instrument update message.\n")); - DisableAndLock(); - ResetInternal(); - this->pInstrument = NULL; - } - - /** - * Will be called by the InstrumentResourceManager when the instrument - * update process was completed, so we can continue with playback. - */ - void Engine::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) { - this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument()) - Enable(); - } - void Engine::Connect(AudioOutputDevice* pAudioOut) { pAudioOutputDevice = pAudioOut; @@ -334,18 +181,14 @@ String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); throw LinuxSamplerException(msg); } - - this->AudioDeviceChannelLeft = 0; - this->AudioDeviceChannelRight = 1; - this->pOutputLeft = pAudioOutputDevice->Channel(0)->Buffer(); - this->pOutputRight = pAudioOutputDevice->Channel(1)->Buffer(); + this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); 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 to big for current audio fragment size / sampling rate!"); + throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h too big for current audio fragment size / sampling rate!"); // (re)create disk thread if (this->pDiskThread) { @@ -399,16 +242,6 @@ } } - void Engine::DisconnectAudioOutputDevice() { - if (pAudioOutputDevice) { // if clause to prevent disconnect loops - AudioOutputDevice* olddevice = pAudioOutputDevice; - pAudioOutputDevice = NULL; - olddevice->Disconnect(this); - AudioDeviceChannelLeft = -1; - AudioDeviceChannelRight = -1; - } - } - /** * Let this engine proceed to render the given amount of sample points. The * calculated audio data of all voices of this engine will be placed into @@ -416,10 +249,11 @@ * converted to the appropriate value range by the audio output class (e.g. * AlsaIO or JackIO) right after. * + * @param pEngineChannel - the engine's channel to be rendered * @param Samples - number of sample points to be rendered * @returns 0 on success */ - int Engine::RenderAudio(uint Samples) { + int Engine::RenderAudio(LinuxSampler::gig::EngineChannel* pEngineChannel, uint Samples) { dmsg(5,("RenderAudio(Samples=%d)\n", Samples)); // return if no instrument loaded or engine disabled @@ -427,7 +261,7 @@ dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); return 0; } - if (!pInstrument) { + if (!pEngineChannel->pInstrument) { dmsg(5,("gig::Engine: no instrument loaded\n")); return 0; } @@ -444,10 +278,10 @@ pSynthesisEvents[i]->clear(); } { - RTList::Iterator iuiKey = pActiveKeys->first(); - RTList::Iterator end = pActiveKeys->end(); + RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); + RTList::Iterator end = pEngineChannel->pActiveKeys->end(); for(; iuiKey != end; ++iuiKey) { - pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key + pEngineChannel->pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key } } @@ -485,19 +319,19 @@ switch (itEvent->Type) { case Event::type_note_on: dmsg(5,("Engine: Note on received\n")); - ProcessNoteOn(itEvent); + ProcessNoteOn(pEngineChannel, itEvent); break; case Event::type_note_off: dmsg(5,("Engine: Note off received\n")); - ProcessNoteOff(itEvent); + ProcessNoteOff(pEngineChannel, itEvent); break; case Event::type_control_change: dmsg(5,("Engine: MIDI CC received\n")); - ProcessControlChange(itEvent); + ProcessControlChange(pEngineChannel, itEvent); break; case Event::type_pitchbend: dmsg(5,("Engine: Pitchbend received\n")); - ProcessPitchbend(itEvent); + ProcessPitchbend(pEngineChannel, itEvent); break; case Event::type_sysex: dmsg(5,("Engine: Sysex received\n")); @@ -512,10 +346,10 @@ // render audio from all active voices { - RTList::Iterator iuiKey = pActiveKeys->first(); - RTList::Iterator end = pActiveKeys->end(); + 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 = &pMIDIKeyInfo[*iuiKey]; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; ++iuiKey; RTList::Iterator itVoice = pKey->pActiveVoices->first(); @@ -525,7 +359,7 @@ itVoice->Render(Samples); if (itVoice->IsActive()) active_voices++; // still active else { // voice reached end, is now inactive - FreeVoice(itVoice); // remove voice from the list of active voices + FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices } } } @@ -537,13 +371,14 @@ RTList::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); RTList::Iterator end = pVoiceStealingQueue->end(); for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { - Pool::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); + Pool::Iterator itNewVoice = + LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); if (itNewVoice) { for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) { itNewVoice->Render(Samples); if (itNewVoice->IsActive()) active_voices++; // still active else { // voice reached end, is now inactive - FreeVoice(itNewVoice); // remove voice from the list of active voices + FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices } } } @@ -558,12 +393,12 @@ // free all keys which have no active voices left { - RTList::Iterator iuiKey = pActiveKeys->first(); - RTList::Iterator end = pActiveKeys->end(); + 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 = &pMIDIKeyInfo[*iuiKey]; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; ++iuiKey; - if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey); + 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) RTList::Iterator itVoice = pKey->pActiveVoices->first(); @@ -586,69 +421,7 @@ return 0; - } - - /** - * Will be called by the MIDIIn Thread to let the audio thread trigger a new - * voice for the given key. - * - * @param Key - MIDI key number of the triggered key - * @param Velocity - MIDI velocity value of the triggered key - */ - void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) { - Event event = pEventGenerator->CreateEvent(); - event.Type = Event::type_note_on; - event.Param.Note.Key = Key; - event.Param.Note.Velocity = Velocity; - if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); - else dmsg(1,("Engine: Input event queue full!")); - } - - /** - * Will be called by the MIDIIn Thread to signal the audio thread to release - * voice(s) on the given key. - * - * @param Key - MIDI key number of the released key - * @param Velocity - MIDI release velocity value of the released key - */ - void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) { - Event event = pEventGenerator->CreateEvent(); - event.Type = Event::type_note_off; - event.Param.Note.Key = Key; - event.Param.Note.Velocity = Velocity; - if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); - else dmsg(1,("Engine: Input event queue full!")); - } - - /** - * Will be called by the MIDIIn Thread to signal the audio thread to change - * the pitch value for all voices. - * - * @param Pitch - MIDI pitch value (-8192 ... +8191) - */ - void Engine::SendPitchbend(int Pitch) { - Event event = pEventGenerator->CreateEvent(); - event.Type = Event::type_pitchbend; - event.Param.Pitch.Pitch = Pitch; - if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); - else dmsg(1,("Engine: Input event queue full!")); - } - - /** - * Will be called by the MIDIIn Thread to signal the audio thread that a - * continuous controller value has changed. - * - * @param Controller - MIDI controller number of the occured control change - * @param Value - value of the control change - */ - void Engine::SendControlChange(uint8_t Controller, uint8_t Value) { - Event event = pEventGenerator->CreateEvent(); - event.Type = Event::type_control_change; - event.Param.CC.Controller = Controller; - event.Param.CC.Value = Value; - if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); - else dmsg(1,("Engine: Input event queue full!")); - } + } /** * Will be called by the MIDI input device whenever a MIDI system @@ -684,23 +457,27 @@ /** * Assigns and triggers a new voice for the respective MIDI key. * + * @param pEngineChannel - engine channel on which this event occured on * @param itNoteOnEvent - key, velocity and time stamp of the event */ - void Engine::ProcessNoteOn(Pool::Iterator& itNoteOnEvent) { - + void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOnEvent) { + const int key = itNoteOnEvent->Param.Note.Key; // Change key dimension value if key is in keyswitching area - if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high) - CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) / - (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); + { + const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument; + if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high) + pEngineChannel->CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) / + (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); + } - midi_key_info_t* pKey = &pMIDIKeyInfo[key]; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; pKey->KeyPressed = true; // the MIDI key was now pressed down // cancel release process of voices on this key if needed - if (pKey->Active && !SustainPedal) { + if (pKey->Active && !pEngineChannel->SustainPedal) { RTList::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); if (itCancelReleaseEvent) { *itCancelReleaseEvent = *itNoteOnEvent; // copy event @@ -713,7 +490,7 @@ RTList::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); // allocate and trigger a new voice for the key - LaunchVoice(itNoteOnEventOnKeyList, 0, false, true); + LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, 0, false, true); } /** @@ -722,15 +499,16 @@ * sustain pedal will be released or voice turned inactive by itself (e.g. * due to completion of sample playback). * + * @param pEngineChannel - engine channel on which this event occured on * @param itNoteOffEvent - key, velocity and time stamp of the event */ - void Engine::ProcessNoteOff(Pool::Iterator& itNoteOffEvent) { - midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; + void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOffEvent) { + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; pKey->KeyPressed = false; // the MIDI key was now released // release voices on this key if needed - if (pKey->Active && !SustainPedal) { + if (pKey->Active && !pEngineChannel->SustainPedal) { itNoteOffEvent->Type = Event::type_release; // transform event type } @@ -739,7 +517,7 @@ // spawn release triggered voice(s) if needed if (pKey->ReleaseTrigger) { - LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples + LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples pKey->ReleaseTrigger = false; } } @@ -748,10 +526,11 @@ * Moves pitchbend event from the general (input) event list to the pitch * event list. * + * @param pEngineChannel - engine channel on which this event occured on * @param itPitchbendEvent - absolute pitch value and time stamp of the event */ - void Engine::ProcessPitchbend(Pool::Iterator& itPitchbendEvent) { - this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value + void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool::Iterator& itPitchbendEvent) { + pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]); } @@ -760,6 +539,7 @@ * called by the ProcessNoteOn() method and by the voices itself * (e.g. to spawn further voices on the same key for layered sounds). * + * @param pEngineChannel - engine channel on which this event occured on * @param itNoteOnEvent - key, velocity and time stamp of the event * @param iLayer - layer index for the new voice (optional - only * in case of layered sounds of course) @@ -772,23 +552,23 @@ * if the voice wasn't triggered (for example when no region is * defined for the given key). */ - Pool::Iterator Engine::LaunchVoice(Pool::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) { - midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.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]; // allocate a new voice for the key Pool::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); if (itNewVoice) { // launch the new voice - if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) { + if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pEngineChannel->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 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 = &ActiveKeyGroups[itNewVoice->KeyGroup]; + ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; if (*ppKeyGroup) { // if there's already an active key in that key group - midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup]; + 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(); @@ -799,7 +579,7 @@ } if (!pKey->Active) { // mark as active key pKey->Active = true; - pKey->itSelf = pActiveKeys->allocAppend(); + pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend(); *pKey->itSelf = itNoteOnEvent->Param.Note.Key; } if (itNewVoice->KeyGroup) { @@ -811,13 +591,13 @@ } else if (VoiceStealing) { // first, get total amount of required voices (dependant on amount of layers) - ::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); + ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); if (!pRegion) return Pool::Iterator(); // nothing defined for this MIDI key, so no voice needed int voicesRequired = pRegion->Layers; // now steal the (remaining) amount of voices for (int i = iLayer; i < voicesRequired; i++) - StealVoice(itNoteOnEvent); + 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(); @@ -838,9 +618,10 @@ * voice stealing and postpone the note-on event until the selected * voice actually died. * + * @param pEngineChannel - engine channel on which this event occured on * @param itNoteOnEvent - key, velocity and time stamp of the event */ - void Engine::StealVoice(Pool::Iterator& itNoteOnEvent) { + void Engine::StealVoice(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOnEvent) { if (!pEventPool->poolIsEmpty()) { RTList::Iterator iuiOldestKey; @@ -854,7 +635,7 @@ // key, or no voice left to kill there, then procceed with // 'oldestkey' algorithm case voice_steal_algo_keymask: { - midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; + midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; if (itLastStolenVoice) { itOldestVoice = itLastStolenVoice; ++itOldestVoice; @@ -872,14 +653,14 @@ // (caution: must stay after 'keymask' algorithm !) case voice_steal_algo_oldestkey: { if (itLastStolenVoice) { - midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey]; + midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiLastStolenKey]; itOldestVoice = itLastStolenVoice; ++itOldestVoice; if (!itOldestVoice) { iuiOldestKey = iuiLastStolenKey; ++iuiOldestKey; if (iuiOldestKey) { - midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; + midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiOldestKey]; itOldestVoice = pOldestKey->pActiveVoices->first(); } else { @@ -890,8 +671,8 @@ else iuiOldestKey = iuiLastStolenKey; } else { // no voice stolen in this audio fragment cycle yet - iuiOldestKey = pActiveKeys->first(); - midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; + iuiOldestKey = pEngineChannel->pActiveKeys->first(); + midi_key_info_t* pOldestKey = &pEngineChannel->pMIDIKeyInfo[*iuiOldestKey]; itOldestVoice = pOldestKey->pActiveVoices->first(); } break; @@ -923,11 +704,12 @@ * it finished to playback its sample, finished its release stage or * just was killed. * + * @param pEngineChannel - engine channel on which this event occured on * @param itVoice - points to the voice to be freed */ - void Engine::FreeVoice(Pool::Iterator& itVoice) { + void Engine::FreeVoice(EngineChannel* pEngineChannel, Pool::Iterator& itVoice) { if (itVoice) { - midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey]; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey]; uint keygroup = itVoice->KeyGroup; @@ -936,7 +718,7 @@ // if no other voices left and member of a key group, remove from key group if (pKey->pActiveVoices->isEmpty() && keygroup) { - uint** ppKeyGroup = &ActiveKeyGroups[keygroup]; + uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup]; if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group } } @@ -947,12 +729,13 @@ * Called when there's no more voice left on a key, this call will * update the key info respectively. * + * @param pEngineChannel - engine channel on which this event occured on * @param pKey - key which is now inactive */ - void Engine::FreeKey(midi_key_info_t* pKey) { + void Engine::FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey) { if (pKey->pActiveVoices->isEmpty()) { pKey->Active = false; - pActiveKeys->free(pKey->itSelf); // remove key from list of active keys + pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys pKey->itSelf = RTList::Iterator(); pKey->ReleaseTrigger = false; pKey->pEvents->clear(); @@ -965,23 +748,24 @@ * Reacts on supported control change commands (e.g. pitch bend wheel, * modulation wheel, aftertouch). * + * @param pEngineChannel - engine channel on which this event occured on * @param itControlChangeEvent - controller, value and time stamp of the event */ - void Engine::ProcessControlChange(Pool::Iterator& itControlChangeEvent) { + 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)); switch (itControlChangeEvent->Param.CC.Controller) { case 64: { - if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) { + if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { dmsg(4,("PEDAL DOWN\n")); - SustainPedal = true; + pEngineChannel->SustainPedal = true; // cancel release process of voices if necessary - RTList::Iterator iuiKey = pActiveKeys->first(); + RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); if (iuiKey) { itControlChangeEvent->Type = Event::type_cancel_release; // transform event type while (iuiKey) { - midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; ++iuiKey; if (!pKey->KeyPressed) { RTList::Iterator itNewEvent = pKey->pEvents->allocAppend(); @@ -991,16 +775,16 @@ } } } - if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) { + if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { dmsg(4,("PEDAL UP\n")); - SustainPedal = false; + pEngineChannel->SustainPedal = false; // release voices if their respective key is not pressed - RTList::Iterator iuiKey = pActiveKeys->first(); + RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); if (iuiKey) { itControlChangeEvent->Type = Event::type_release; // transform event type while (iuiKey) { - midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; ++iuiKey; if (!pKey->KeyPressed) { RTList::Iterator itNewEvent = pKey->pEvents->allocAppend(); @@ -1015,7 +799,7 @@ } // update controller value in the engine's controller table - ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; + 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(pCCEvents); @@ -1117,47 +901,7 @@ m[i+2] = val; m[i+3] = val; } - } - - float Engine::Volume() { - return GlobalVolume; - } - - void Engine::Volume(float f) { - GlobalVolume = f; - } - - uint Engine::Channels() { - return 2; - } - - void Engine::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) { - AudioChannel* pChannel = pAudioOutputDevice->Channel(AudioDeviceChannel); - if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel)); - switch (EngineAudioChannel) { - case 0: // left output channel - pOutputLeft = pChannel->Buffer(); - AudioDeviceChannelLeft = AudioDeviceChannel; - break; - case 1: // right output channel - pOutputRight = pChannel->Buffer(); - AudioDeviceChannelRight = AudioDeviceChannel; - break; - default: - throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); - } - } - - int Engine::OutputChannel(uint EngineAudioChannel) { - switch (EngineAudioChannel) { - case 0: // left channel - return AudioDeviceChannelLeft; - case 1: // right channel - return AudioDeviceChannelRight; - default: - throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); - } - } + } uint Engine::VoiceCount() { return ActiveVoiceCount; @@ -1191,28 +935,12 @@ return "GigEngine"; } - String Engine::InstrumentFileName() { - return InstrumentFile; - } - - String Engine::InstrumentName() { - return InstrumentIdxName; - } - - int Engine::InstrumentIndex() { - return InstrumentIdx; - } - - int Engine::InstrumentStatus() { - return InstrumentStat; - } - String Engine::Description() { return "Gigasampler Engine"; } String Engine::Version() { - String s = "$Revision: 1.25 $"; + String s = "$Revision: 1.26 $"; return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword }