--- linuxsampler/trunk/src/engines/gig/Engine.cpp 2009/10/23 17:12:01 2011 +++ linuxsampler/trunk/src/engines/gig/Engine.cpp 2009/10/23 17:53:17 2012 @@ -4,6 +4,7 @@ * * * Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck * * Copyright (C) 2005-2009 Christian Schoenebeck * + * Copyright (C) 2009 Grigor Iliev * * * * 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 * @@ -21,1220 +22,149 @@ * MA 02111-1307 USA * ***************************************************************************/ -#include -#include "DiskThread.h" -#include "Voice.h" -#include "EGADSR.h" -#include "../EngineFactory.h" - #include "Engine.h" - -#include "../../common/global_private.h" +#include "EngineChannel.h" namespace LinuxSampler { namespace gig { - - InstrumentResourceManager Engine::instruments; - - std::map Engine::engines; - - /** - * Get a gig::Engine object for the given gig::EngineChannel and the - * given AudioOutputDevice. All engine channels which are connected to - * the same audio output device will use the same engine instance. This - * method will be called by a gig::EngineChannel whenever it's - * connecting to a audio output device. - * - * @param pChannel - engine channel which acquires an engine object - * @param pDevice - the audio output device \a pChannel is connected to - */ - Engine* Engine::AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) { - Engine* pEngine = NULL; - // check if there's already an engine for the given audio output device - if (engines.count(pDevice)) { - dmsg(4,("Using existing gig::Engine.\n")); - pEngine = engines[pDevice]; - - // Disable the engine while the new engine channel is - // added and initialized. The engine will be enabled again - // in EngineChannel::Connect. - pEngine->DisableAndLock(); - } else { // create a new engine (and disk thread) instance for the given audio output device - dmsg(4,("Creating new gig::Engine.\n")); - pEngine = (Engine*) EngineFactory::Create("gig"); - pEngine->Connect(pDevice); - engines[pDevice] = pEngine; - } - // register engine channel to the engine instance - pEngine->engineChannels.add(pChannel); - // remember index in the ArrayList - pChannel->iEngineIndexSelf = pEngine->engineChannels.size() - 1; - dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); - return pEngine; - } - - /** - * Once an engine channel is disconnected from an audio output device, - * it will immediately call this method to unregister itself from the - * engine instance and if that engine instance is not used by any other - * engine channel anymore, then that engine instance will be destroyed. - * - * @param pChannel - engine channel which wants to disconnect from it's - * engine instance - * @param pDevice - audio output device \a pChannel was connected to - */ - void Engine::FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) { - dmsg(4,("Disconnecting EngineChannel from gig::Engine.\n")); - Engine* pEngine = engines[pDevice]; - // unregister EngineChannel from the Engine instance - pEngine->engineChannels.remove(pChannel); - // if the used Engine instance is not used anymore, then destroy it - if (pEngine->engineChannels.empty()) { - pDevice->Disconnect(pEngine); - engines.erase(pDevice); - delete pEngine; - dmsg(4,("Destroying gig::Engine.\n")); - } - else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); - } - - /** - * Constructor - */ - Engine::Engine() : SuspendedRegions(128) { - pAudioOutputDevice = NULL; - pDiskThread = NULL; - pEventGenerator = NULL; - 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(GLOBAL_MAX_VOICES); - pDimRegionPool[0] = new Pool< ::gig::DimensionRegion*>(GLOBAL_MAX_VOICES); - pDimRegionPool[1] = new Pool< ::gig::DimensionRegion*>(GLOBAL_MAX_VOICES); - pVoiceStealingQueue = new RTList(pEventPool); - pGlobalEvents = new RTList(pEventPool); - iMaxDiskStreams = GLOBAL_MAX_STREAMS; - FrameTime = 0; - - for (RTList::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { - iterVoice->SetEngine(this); - } - pVoicePool->clear(); - - ResetInternal(); - ResetScaleTuning(); - ResetSuspendedRegions(); - } - - /** - * Destructor - */ - Engine::~Engine() { - MidiInputPort::RemoveSysexListener(this); - if (pDiskThread) { - dmsg(1,("Stopping disk thread...")); - pDiskThread->StopThread(); - delete pDiskThread; - dmsg(1,("OK\n")); - } - if (pEventQueue) delete pEventQueue; - if (pEventPool) delete pEventPool; - if (pVoicePool) { - pVoicePool->clear(); - delete pVoicePool; - } - if (pEventGenerator) delete pEventGenerator; - if (pVoiceStealingQueue) delete pVoiceStealingQueue; - if (pSysexBuffer) delete pSysexBuffer; - if (pGlobalEvents) delete pGlobalEvents; - if (pDimRegionPool[0]) delete pDimRegionPool[0]; - if (pDimRegionPool[1]) delete pDimRegionPool[1]; - ResetSuspendedRegions(); - Unregister(); - } - - void Engine::Enable() { - dmsg(3,("gig::Engine: enabling\n")); - EngineDisabled.PushAndUnlock(false, 2, 0, true); // set condition object 'EngineDisabled' to false (wait max. 2s) - dmsg(3,("gig::Engine: enabled (val=%d)\n", EngineDisabled.GetUnsafe())); - } - - /** - * Temporarily stop the engine to not do anything. The engine will just be - * frozen during that time, that means after enabling it again it will - * continue where it was, with all its voices and playback state it had at - * the point of disabling. Notice that the engine's (audio) thread will - * continue to run, it just remains in an inactive loop during that time. - * - * If you need to be sure that all voices and disk streams are killed as - * well, use @c SuspendAll() instead. - * - * @see Enable(), SuspendAll() - */ - void Engine::Disable() { - dmsg(3,("gig::Engine: disabling\n")); - bool* pWasDisabled = EngineDisabled.PushAndUnlock(true, 2); // wait max. 2s - if (!pWasDisabled) dmsg(3,("gig::Engine warning: Timeout waiting to disable engine.\n")); - } - - void Engine::DisableAndLock() { - dmsg(3,("gig::Engine: disabling\n")); - bool* pWasDisabled = EngineDisabled.Push(true, 2); // wait max. 2s - if (!pWasDisabled) dmsg(3,("gig::Engine warning: Timeout waiting to disable engine.\n")); - } + Engine::Format Engine::GetEngineFormat() { return GIG; } /** - * Similar to @c Disable() but this method additionally kills all voices - * and disk streams and blocks until all voices and disk streams are actually - * killed / deleted. - * - * @e Note: only the original calling thread is able to re-enable the - * engine afterwards by calling @c ResumeAll() later on! - */ - void Engine::SuspendAll() { - dmsg(2,("gig::Engine: Suspending all ...\n")); - // stop the engine, so we can safely modify the engine's - // data structures from this foreign thread - DisableAndLock(); - // we could also use the respective class member variable here, - // but this is probably safer and cleaner - int iPendingStreamDeletions = 0; - // kill all voices on all engine channels the *die hard* way - for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) { - EngineChannel* pEngineChannel = engineChannels[iChannel]; - RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); - RTList::Iterator end = pEngineChannel->pActiveKeys->end(); - for (; iuiKey != end; ++iuiKey) { // iterate through all active keys - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; - RTList::Iterator itVoice = pKey->pActiveVoices->first(); - RTList::Iterator itVoicesEnd = pKey->pActiveVoices->end(); - for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key - // request a notification from disk thread side for stream deletion - const Stream::Handle hStream = itVoice->KillImmediately(true); - if (hStream != Stream::INVALID_HANDLE) { // voice actually used a stream - iPendingStreamDeletions++; - } - // free the voice to the voice pool and update key info - FreeVoice(pEngineChannel, itVoice); - } - } - } - // wait until all streams were actually deleted by the disk thread - while (iPendingStreamDeletions) { - while ( - iPendingStreamDeletions && - pDiskThread->AskForDeletedStream() != Stream::INVALID_HANDLE - ) iPendingStreamDeletions--; - if (!iPendingStreamDeletions) break; - usleep(10000); // sleep for 10ms - } - dmsg(2,("gig::Engine: Everything suspended.\n")); - } - - /** - * At the moment same as calling @c Enable() directly, but this might - * change in future, so better call this method as counterpart to - * @c SuspendAll() instead of @c Enable() ! - */ - void Engine::ResumeAll() { - Enable(); - } - - /** - * Order the engine to stop rendering audio for the given region. - * Additionally this method will block until all voices and their disk - * streams associated with that region are actually killed / deleted, so - * one can i.e. safely modify the region with an instrument editor after - * returning from this method. - * - * @param pRegion - region the engine shall stop using - */ - void Engine::Suspend(::gig::Region* pRegion) { - dmsg(2,("gig::Engine: Suspending Region %x ...\n",pRegion)); - SuspendedRegionsMutex.Lock(); - SuspensionChangeOngoing.Set(true); - pPendingRegionSuspension = pRegion; - SuspensionChangeOngoing.WaitAndUnlockIf(true); - SuspendedRegionsMutex.Unlock(); - dmsg(2,("gig::Engine: Region %x suspended.",pRegion)); - } - - /** - * Orders the engine to resume playing back the given region, previously - * suspended with @c Suspend() . - * - * @param pRegion - region the engine shall be allowed to use again - */ - void Engine::Resume(::gig::Region* pRegion) { - dmsg(2,("gig::Engine: Resuming Region %x ...\n",pRegion)); - SuspendedRegionsMutex.Lock(); - SuspensionChangeOngoing.Set(true); - pPendingRegionResumption = pRegion; - SuspensionChangeOngoing.WaitAndUnlockIf(true); - SuspendedRegionsMutex.Unlock(); - dmsg(2,("gig::Engine: Region %x resumed.\n",pRegion)); - } - - /** - * Reset all voices and disk thread and clear input event queue and all - * control and status variables. - */ - void Engine::Reset() { - DisableAndLock(); - ResetInternal(); - ResetScaleTuning(); - Enable(); - } - - /** - * Reset all voices and disk thread and clear input event queue and all - * control and status variables. This method is protected by a mutex. - */ - void Engine::ResetInternal() { - ResetInternalMutex.Lock(); - - // make sure that the engine does not get any sysex messages - // while it's reseting - bool sysexDisabled = MidiInputPort::RemoveSysexListener(this); - SetVoiceCount(0); - ActiveVoiceCountMax = 0; - - // reset voice stealing parameters - pVoiceStealingQueue->clear(); - 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()) { - iterVoice->Reset(); - } - pVoicePool->clear(); - - // reset disk thread - if (pDiskThread) pDiskThread->Reset(); - - // delete all input events - pEventQueue->init(); - pSysexBuffer->init(); - if (sysexDisabled) MidiInputPort::AddSysexListener(this); - ResetInternalMutex.Unlock(); - } - - /** - * Reset to normal, chromatic scale (means equal tempered). - */ - void Engine::ResetScaleTuning() { - memset(&ScaleTuning[0], 0x00, 12); - } - - void Engine::ResetSuspendedRegions() { - SuspendedRegions.clear(); - iPendingStreamDeletions = 0; - pPendingRegionSuspension = pPendingRegionResumption = NULL; - SuspensionChangeOngoing.Set(false); - } - - /** - * 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) { - // caution: don't ignore if connecting to the same device here, - // because otherwise SetMaxDiskStreams() implementation won't work anymore! - - pAudioOutputDevice = pAudioOut; - - ResetInternal(); - - // inform audio driver for the need of two channels - try { - 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 Exception(msg); - } - - this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); - this->SampleRate = pAudioOutputDevice->SampleRate(); - - MinFadeOutSamples = int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1; - if (MaxSamplesPerCycle < MinFadeOutSamples) { - 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 - MinFadeOutSamples = MaxSamplesPerCycle; - // 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) { - dmsg(1,("Stopping disk thread...")); - this->pDiskThread->StopThread(); - delete this->pDiskThread; - dmsg(1,("OK\n")); - } - this->pDiskThread = - new DiskThread( - iMaxDiskStreams, - ((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo - &instruments - ); - - if (!pDiskThread) { - dmsg(0,("gig::Engine new diskthread = NULL\n")); - exit(EXIT_FAILURE); - } - - for (RTList::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { - iterVoice->pDiskThread = this->pDiskThread; - dmsg(3,("d")); - } - pVoicePool->clear(); - - // (re)create event generator - if (pEventGenerator) delete pEventGenerator; - pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); - - dmsg(1,("Starting disk thread...")); - pDiskThread->StartThread(); - dmsg(1,("OK\n")); - - for (RTList::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { - if (!iterVoice->pDiskThread) { - dmsg(0,("Engine -> voice::trigger: !pDiskThread\n")); - exit(EXIT_FAILURE); - } - } - pVoicePool->clear(); - } - - /** - * Called by the engine's (audio) thread once per cycle to process requests - * from the outer world to suspend or resume a given @c gig::Region . - */ - void Engine::ProcessSuspensionsChanges() { - // process request for suspending one region - if (pPendingRegionSuspension) { - // kill all voices on all engine channels that use this region - for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) { - EngineChannel* pEngineChannel = engineChannels[iChannel]; - RTList::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); - RTList::Iterator end = pEngineChannel->pActiveKeys->end(); - for (; iuiKey != end; ++iuiKey) { // iterate through all active keys - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; - RTList::Iterator itVoice = pKey->pActiveVoices->first(); - // if current key is not associated with this region, skip this key - if (itVoice->pDimRgn->GetParent() != pPendingRegionSuspension) continue; - RTList::Iterator itVoicesEnd = pKey->pActiveVoices->end(); - for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key - // request a notification from disk thread side for stream deletion - const Stream::Handle hStream = itVoice->KillImmediately(true); - if (hStream != Stream::INVALID_HANDLE) { // voice actually used a stream - iPendingStreamDeletions++; - } - //NOTE: maybe we should call FreeVoice() here, shouldn't cause a harm though I think, since the voices should be freed by RenderActiveVoices() in the render loop, they are probably just freed a bit later than they could/should be - } - } - } - // make sure the region is not yet on the list - bool bAlreadySuspended = false; - RTList< ::gig::Region*>::Iterator iter = SuspendedRegions.first(); - RTList< ::gig::Region*>::Iterator end = SuspendedRegions.end(); - for (; iter != end; ++iter) { // iterate through all suspended regions - if (*iter == pPendingRegionSuspension) { // found - bAlreadySuspended = true; - dmsg(1,("gig::Engine: attempt to suspend an already suspended region !!!\n")); - break; - } - } - if (!bAlreadySuspended) { - // put the region on the list of suspended regions - RTList< ::gig::Region*>::Iterator iter = SuspendedRegions.allocAppend(); - if (iter) { - *iter = pPendingRegionSuspension; - } else std::cerr << "gig::Engine: Could not suspend Region, list is full. This is a bug!!!\n" << std::flush; - } - // free request slot for next caller (and to make sure that - // we're not going to process the same request in the next cycle) - pPendingRegionSuspension = NULL; - // if no disk stream deletions are pending, awaken other side, as - // we're done in this case - if (!iPendingStreamDeletions) SuspensionChangeOngoing.Set(false); - } - - // process request for resuming one region - if (pPendingRegionResumption) { - // remove region from the list of suspended regions - RTList< ::gig::Region*>::Iterator iter = SuspendedRegions.first(); - RTList< ::gig::Region*>::Iterator end = SuspendedRegions.end(); - for (; iter != end; ++iter) { // iterate through all suspended regions - if (*iter == pPendingRegionResumption) { // found - SuspendedRegions.free(iter); - break; // done - } - } - // free request slot for next caller - pPendingRegionResumption = NULL; - // awake other side as we're done - SuspensionChangeOngoing.Set(false); - } - } - - /** - * Called by the engine's (audio) thread once per cycle to check if - * streams of voices that were killed due to suspension request have - * finally really been deleted by the disk thread. - */ - void Engine::ProcessPendingStreamDeletions() { - if (!iPendingStreamDeletions) return; - //TODO: or shall we better store a list with stream handles instead of a scalar amount of streams to be deleted? might be safer - while ( - iPendingStreamDeletions && - pDiskThread->AskForDeletedStream() != Stream::INVALID_HANDLE - ) iPendingStreamDeletions--; - // just for safety ... - while (pDiskThread->AskForDeletedStream() != Stream::INVALID_HANDLE); - // now that all disk streams are deleted, awake other side as - // we're finally done with suspending the requested region - if (!iPendingStreamDeletions) SuspensionChangeOngoing.Set(false); - } - - /** - * Returns @c true if the given region is currently set to be suspended - * from being used, @c false otherwise. - */ - bool Engine::RegionSuspended(::gig::Region* pRegion) { - if (SuspendedRegions.isEmpty()) return false; - //TODO: or shall we use a sorted container instead of the RTList? might be faster ... or trivial ;-) - RTList< ::gig::Region*>::Iterator iter = SuspendedRegions.first(); - RTList< ::gig::Region*>::Iterator end = SuspendedRegions.end(); - for (; iter != end; ++iter) // iterate through all suspended regions - if (*iter == pRegion) return true; - return false; - } - - /** - * Clear all engine global event lists. - */ - void Engine::ClearEventLists() { - pGlobalEvents->clear(); - } - - /** - * Copy all events from the engine's global input queue buffer to the - * engine's internal event list. This will be done at the beginning of - * each audio cycle (that is each RenderAudio() call) to distinguish - * all global events which have to be processed in the current audio - * cycle. These events are usually just SysEx messages. Every - * EngineChannel has it's own input event queue buffer and event list - * to handle common events like NoteOn, NoteOff and ControlChange - * events. - * - * @param Samples - number of sample points to be processed in the - * current audio cycle - */ - void Engine::ImportEvents(uint Samples) { - RingBuffer::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); - Event* pEvent; - while (true) { - // get next event from input event queue - if (!(pEvent = eventQueueReader.pop())) break; - // if younger event reached, ignore that and all subsequent ones for now - if (pEvent->FragmentPos() >= Samples) { - eventQueueReader--; - dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); - pEvent->ResetFragmentPos(); - break; - } - // copy event to internal event list - if (pGlobalEvents->poolIsEmpty()) { - dmsg(1,("Event pool emtpy!\n")); - break; - } - *pGlobalEvents->allocAppend() = *pEvent; - } - eventQueueReader.free(); // free all copied events from input queue - } - - /** - * Let this engine proceed to render the given amount of sample points. - * The engine will iterate through all engine channels and render audio - * for each engine channel independently. The calculated audio data of - * all voices of each engine channel will be placed into the audio sum - * buffers of the respective audio output device, connected to the - * respective engine channel. + * Reacts on supported control change commands (e.g. pitch bend wheel, + * modulation wheel, aftertouch). * - * @param Samples - number of sample points to be rendered - * @returns 0 on success + * @param pEngineChannel - engine channel on which this event occured on + * @param itControlChangeEvent - controller, value and time stamp of the event */ - int Engine::RenderAudio(uint Samples) { - dmsg(8,("RenderAudio(Samples=%d)\n", Samples)); - - // return if engine disabled - if (EngineDisabled.Pop()) { - dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); - EngineDisabled.RttDone(); - return 0; - } - - // process requests for suspending / resuming regions (i.e. to avoid - // crashes while these regions are modified by an instrument editor) - ProcessSuspensionsChanges(); - - // update time of start and end of this audio fragment (as events' time stamps relate to this) - pEventGenerator->UpdateFragmentTime(Samples); - - // We only allow the given maximum number of voices to be spawned - // in each audio fragment. All subsequent request for spawning new - // voices in the same audio fragment will be ignored. - VoiceSpawnsLeft = MaxVoices(); - - // 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); - - // process engine global events (these are currently only MIDI System Exclusive messages) - { - RTList::Iterator itEvent = pGlobalEvents->first(); - RTList::Iterator end = pGlobalEvents->end(); - for (; itEvent != end; ++itEvent) { - switch (itEvent->Type) { - case Event::type_sysex: - dmsg(5,("Engine: Sysex received\n")); - ProcessSysex(itEvent); - break; - } - } - } - - // reset internal voice counter (just for statistic of active voices) - ActiveVoiceCountTemp = 0; - - // handle instrument change commands - bool instrumentChanged = false; - for (int i = 0; i < engineChannels.size(); i++) { - EngineChannel* pEngineChannel = engineChannels[i]; - - // as we're going to (carefully) write some status to the - // synchronized struct, we cast away the const - EngineChannel::instrument_change_command_t& cmd = - const_cast(pEngineChannel->InstrumentChangeCommandReader.Lock()); - - pEngineChannel->pDimRegionsInUse = cmd.pDimRegionsInUse; - pEngineChannel->pDimRegionsInUse->clear(); - - if (cmd.bChangeInstrument) { - // change instrument - dmsg(5,("Engine: instrument change command received\n")); - cmd.bChangeInstrument = false; - pEngineChannel->pInstrument = cmd.pInstrument; - instrumentChanged = true; - - // Iterate through all active voices and mark them as - // "orphans", which means that the dimension regions - // and samples they use should be released to the - // instrument resource manager when the voices die. - int i = 0; - 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->Orphan = true; - } - } - } - } - if (instrumentChanged) { - //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 - ResetSuspendedRegions(); - } - - // handle events on all engine channels - for (int i = 0; i < engineChannels.size(); i++) { - ProcessEvents(engineChannels[i], Samples); - } - - // render all 'normal', active voices on all engine channels - for (int i = 0; i < engineChannels.size(); i++) { - RenderActiveVoices(engineChannels[i], Samples); - } - - // now that all ordinary voices on ALL engine channels are rendered, render new stolen voices - RenderStolenVoices(Samples); - - // handle audio routing for engine channels with FX sends - for (int i = 0; i < engineChannels.size(); i++) { - if (engineChannels[i]->fxSends.empty()) continue; // ignore if no FX sends - RouteAudio(engineChannels[i], Samples); - } - - // handle cleanup on all engine channels for the next audio fragment - for (int i = 0; i < engineChannels.size(); i++) { - PostProcess(engineChannels[i]); - } - - - // empty the engine's event list for the next audio fragment - ClearEventLists(); - - // reset voice stealing for the next audio fragment - pVoiceStealingQueue->clear(); - - // just some statistics about this engine instance - SetVoiceCount(ActiveVoiceCountTemp); - if (VoiceCount() > ActiveVoiceCountMax) ActiveVoiceCountMax = VoiceCount(); - - // in case regions were previously suspended and we killed voices - // with disk streams due to that, check if those streams have finally - // been deleted by the disk thread - if (iPendingStreamDeletions) ProcessPendingStreamDeletions(); - - for (int i = 0; i < engineChannels.size(); i++) { - engineChannels[i]->InstrumentChangeCommandReader.Unlock(); - } - FrameTime += Samples; + void Engine::ProcessControlChange ( + LinuxSampler::EngineChannel* pEngineChannel, + Pool::Iterator& itControlChangeEvent + ) { + dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); - EngineDisabled.RttDone(); - return 0; - } + EngineChannel* pChannel = dynamic_cast(pEngineChannel); + // handle the "control triggered" MIDI rule: a control change + // event can trigger a new note on or note off event + if (pChannel->pInstrument) { - /** - * 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.) - pEngineChannel->ImportEvents(Samples); - - // process events - { - RTList::Iterator itEvent = pEngineChannel->pEvents->first(); - RTList::Iterator end = pEngineChannel->pEvents->end(); - for (; itEvent != end; ++itEvent) { - switch (itEvent->Type) { - case Event::type_note_on: - dmsg(5,("Engine: Note on received\n")); - ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent); - break; - case Event::type_note_off: - dmsg(5,("Engine: Note off received\n")); - ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent); - break; - case Event::type_control_change: - dmsg(5,("Engine: MIDI CC received\n")); - ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent); - break; - case Event::type_pitchbend: - dmsg(5,("Engine: Pitchbend received\n")); - ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent); - break; - } - } - } + ::gig::MidiRule* rule; + for (int i = 0 ; (rule = pChannel->pInstrument->GetMidiRule(i)) ; i++) { - // 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; - } + if (::gig::MidiRuleCtrlTrigger* ctrlTrigger = + dynamic_cast< ::gig::MidiRuleCtrlTrigger*>(rule)) { + if (itControlChangeEvent->Param.CC.Controller == + ctrlTrigger->ControllerNumber) { - /** - * 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 - - uint voiceCount = 0; - uint streamCount = 0; - 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 - // now render current voice - itVoice->Render(Samples); - if (itVoice->IsActive()) { // still active - if (!itVoice->Orphan) { - *(pEngineChannel->pDimRegionsInUse->allocAppend()) = itVoice->pDimRgn; - } - ActiveVoiceCountTemp++; - voiceCount++; + uint8_t oldCCValue = pChannel->ControllerTable[ + itControlChangeEvent->Param.CC.Controller]; + uint8_t newCCValue = itControlChangeEvent->Param.CC.Value; - if (itVoice->PlaybackState == Voice::playback_state_disk) { - if ((itVoice->DiskStreamRef).State != Stream::state_unused) streamCount++; - } - } else { // voice reached end, is now inactive - FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices - } - } - } + for (int i = 0 ; i < ctrlTrigger->Triggers ; i++) { + ::gig::MidiRuleCtrlTrigger::trigger_t* pTrigger = + &ctrlTrigger->pTriggers[i]; - pEngineChannel->SetVoiceCount(voiceCount); - pEngineChannel->SetDiskStreamCount(streamCount); - } + // check if the controller has passed the + // trigger point in the right direction + if ((pTrigger->Descending && + oldCCValue > pTrigger->TriggerPoint && + newCCValue <= pTrigger->TriggerPoint) || + (!pTrigger->Descending && + oldCCValue < pTrigger->TriggerPoint && + newCCValue >= pTrigger->TriggerPoint)) { - /** - * 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; - if (!pEngineChannel->pInstrument) continue; // ignore if no instrument loaded - Pool::Iterator itNewVoice = - LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false); - if (itNewVoice) { - itNewVoice->Render(Samples); - if (itNewVoice->IsActive()) { // still active - *(pEngineChannel->pDimRegionsInUse->allocAppend()) = itNewVoice->pDimRgn; - ActiveVoiceCountTemp++; - pEngineChannel->SetVoiceCount(pEngineChannel->GetVoiceCount() + 1); - - if (itNewVoice->PlaybackState == Voice::playback_state_disk) { - if (itNewVoice->DiskStreamRef.State != Stream::state_unused) { - pEngineChannel->SetDiskStreamCount(pEngineChannel->GetDiskStreamCount() + 1); - } - } - } else { // voice reached end, is now inactive - FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices - } - } - else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); + RTList::Iterator itNewEvent = pGlobalEvents->allocAppend(); + if (itNewEvent) { + *itNewEvent = *itControlChangeEvent; + itNewEvent->Param.Note.Key = pTrigger->Key; - // 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(); - } - } + if (pTrigger->NoteOff || pTrigger->Velocity == 0) { + itNewEvent->Type = Event::type_note_off; + itNewEvent->Param.Note.Velocity = 100; - /** - * Will be called in case the respective engine channel sports FX send - * channels. In this particular case, engine channel local buffers are - * used to render and mix all voices to. This method is responsible for - * copying the audio data from those local buffers to the master audio - * output channels as well as to the FX send audio output channels with - * their respective FX send levels. - * - * @param pEngineChannel - engine channel from which audio should be - * routed - * @param Samples - amount of sample points to be routed in - * this audio fragment cycle - */ - void Engine::RouteAudio(EngineChannel* pEngineChannel, uint Samples) { - // route dry signal - { - AudioChannel* pDstL = pAudioOutputDevice->Channel(pEngineChannel->AudioDeviceChannelLeft); - AudioChannel* pDstR = pAudioOutputDevice->Channel(pEngineChannel->AudioDeviceChannelRight); - pEngineChannel->pChannelLeft->MixTo(pDstL, Samples); - pEngineChannel->pChannelRight->MixTo(pDstR, Samples); - } - // route FX send signal - { - for (int iFxSend = 0; iFxSend < pEngineChannel->GetFxSendCount(); iFxSend++) { - FxSend* pFxSend = pEngineChannel->GetFxSend(iFxSend); - for (int iChan = 0; iChan < 2; ++iChan) { - AudioChannel* pSource = - (iChan) - ? pEngineChannel->pChannelRight - : pEngineChannel->pChannelLeft; - const int iDstChan = pFxSend->DestinationChannel(iChan); - if (iDstChan < 0) { - dmsg(1,("Engine::RouteAudio() Error: invalid FX send (%s) destination channel (%d->%d)", ((iChan) ? "R" : "L"), iChan, iDstChan)); - goto channel_cleanup; - } - AudioChannel* pDstChan = NULL; - if (pFxSend->DestinationMasterEffectChain() >= 0) { // fx send routed to an internal master effect - EffectChain* pEffectChain = - pAudioOutputDevice->MasterEffectChain( - pFxSend->DestinationMasterEffectChain() - ); - if (!pEffectChain) { - dmsg(1,("Engine::RouteAudio() Error: invalid FX send (%s) destination effect chain %d", ((iChan) ? "R" : "L"), pFxSend->DestinationMasterEffectChain())); - goto channel_cleanup; - } - Effect* pEffect = - pEffectChain->GetEffect( - pFxSend->DestinationMasterEffect() - ); - if (!pEffect) { - dmsg(1,("Engine::RouteAudio() Error: invalid FX send (%s) destination effect %d of effect chain %d", ((iChan) ? "R" : "L"), pFxSend->DestinationMasterEffect(), pFxSend->DestinationMasterEffectChain())); - goto channel_cleanup; - } - pDstChan = pEffect->InputChannel(iDstChan); - } else { // FX send routed directly to an audio output channel - pDstChan = pAudioOutputDevice->Channel(iDstChan); - } - if (!pDstChan) { - dmsg(1,("Engine::RouteAudio() Error: invalid FX send (%s) destination channel (%d->%d)", ((iChan) ? "R" : "L"), iChan, iDstChan)); - goto channel_cleanup; - } - pSource->MixTo(pDstChan, Samples, pFxSend->Level()); - } - } - } - channel_cleanup: - // reset buffers with silence (zero out) for the next audio cycle - pEngineChannel->pChannelLeft->Clear(); - pEngineChannel->pChannelRight->Clear(); - } + ProcessNoteOff(pEngineChannel, itNewEvent); + } else { + itNewEvent->Type = Event::type_note_on; + //TODO: if Velocity is 255, the triggered velocity should + // depend on how fast the controller is moving + itNewEvent->Param.Note.Velocity = + pTrigger->Velocity == 255 ? 100 : + pTrigger->Velocity; - /** - * 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 - { - 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; - if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey); - #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 - if (itVoice->itKillEvent) { - dmsg(1,("gig::Engine: ERROR, killed voice survived !!!\n")); + ProcessNoteOn(pEngineChannel, itNewEvent); + } + } + else dmsg(1,("Event pool emtpy!\n")); + } } } } - #endif // CONFIG_DEVMODE } } - // empty the engine channel's own event lists - pEngineChannel->ClearEventLists(); - } + // update controller value in the engine channel's controller table + pChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; - /** - * Will be called by the MIDI input device whenever a MIDI system - * exclusive message has arrived. - * - * @param pData - pointer to sysex data - * @param Size - lenght of sysex data (in bytes) - * @param pSender - the MIDI input port on which the SysEx message was - * received - */ - void Engine::SendSysex(void* pData, uint Size, MidiInputPort* pSender) { - Event event = pEventGenerator->CreateEvent(); - event.Type = Event::type_sysex; - event.Param.Sysex.Size = Size; - event.pEngineChannel = NULL; // as Engine global event - event.pMidiInputPort = pSender; - if (pEventQueue->write_space() > 0) { - if (pSysexBuffer->write_space() >= Size) { - // copy sysex data to input buffer - uint toWrite = Size; - uint8_t* pPos = (uint8_t*) pData; - while (toWrite) { - const uint writeNow = RTMath::Min(toWrite, pSysexBuffer->write_space_to_end()); - pSysexBuffer->write(pPos, writeNow); - toWrite -= writeNow; - pPos += writeNow; + ProcessHardcodedControllers(pEngineChannel, itControlChangeEvent); - } - // 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,CONFIG_SYSEX_BUFFER_SIZE)); - } - else dmsg(1,("Engine: Input event queue full!")); + // handle FX send controllers + ProcessFxSendControllers(pChannel, itControlChangeEvent); } - /** - * 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(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOnEvent) { - #if !CONFIG_PROCESS_MUTED_CHANNELS - if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted - #endif - - if (!pEngineChannel->pInstrument) return; // ignore if no instrument loaded - - //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 - itNoteOnEvent->Param.Note.Key += pEngineChannel->GlobalTranspose; - - 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 - { - const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument; - if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high) - pEngineChannel->CurrentKeyDimension = float(key - pInstrument->DimensionKeyRange.low) / - (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); - } - - 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 = *itNoteOnEventOnKeyList; // copy event - itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type - } - else dmsg(1,("Event pool emtpy!\n")); - } - - // allocate and trigger new voice(s) for the key - { - // first, get total amount of required voices (dependant on amount of layers) - ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key); - if (pRegion && !RegionSuspended(pRegion)) { - int voicesRequired = pRegion->Layers; - // now launch the required amount of voices - for (int i = 0; i < voicesRequired; i++) - LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true, true); - } + DiskThread* Engine::CreateDiskThread() { + return new DiskThread ( + iMaxDiskStreams, + ((pAudioOutputDevice->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo + &instruments + ); + } + + void Engine::TriggerNewVoices ( + LinuxSampler::EngineChannel* pEngineChannel, + RTList::Iterator& itNoteOnEvent, + bool HandleKeyGroupConflicts + ) { + EngineChannel* pChannel = static_cast(pEngineChannel); + // first, get total amount of required voices (dependant on amount of layers) + ::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); + if (pRegion && !RegionSuspended(pRegion)) { + int voicesRequired = pRegion->Layers; + // now launch the required amount of voices + for (int i = 0; i < voicesRequired; i++) + LaunchVoice(pChannel, itNoteOnEvent, i, false, true, HandleKeyGroupConflicts); } - - // 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++; } - /** - * Releases the voices on the given key if sustain pedal is not pressed. - * If sustain is pressed, the release of the note will be postponed until - * 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(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOffEvent) { - #if !CONFIG_PROCESS_MUTED_CHANNELS - if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted - #endif - - //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 - itNoteOffEvent->Param.Note.Key += pEngineChannel->GlobalTranspose; - - const int iKey = itNoteOffEvent->Param.Note.Key; - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey]; - pKey->KeyPressed = false; // the MIDI key was now released - - // move event to the key's own event list - RTList::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); - - 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 && pEngineChannel->pInstrument) { //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; + void Engine::TriggerReleaseVoices ( + LinuxSampler::EngineChannel* pEngineChannel, + RTList::Iterator& itNoteOffEvent + ) { + EngineChannel* pChannel = static_cast(pEngineChannel); + MidiKey* pKey = &pChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; + // first, get total amount of required voices (dependant on amount of layers) + ::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOffEvent->Param.Note.Key); + if (pRegion) { + int voicesRequired = pRegion->Layers; + + // MIDI note-on velocity is used instead of note-off velocity + itNoteOffEvent->Param.Note.Velocity = pKey->Velocity; + + // now launch the required amount of voices + for (int i = 0; i < voicesRequired; i++) + LaunchVoice(pChannel, itNoteOffEvent, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples } - - // 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 && pEngineChannel->pInstrument) { - // 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; - } - } - - // 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 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 - } - - /** - * Allocates and triggers a new voice. This method will usually be - * 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) - * @param ReleaseTriggerVoice - if new voice is a release triggered voice - * (optional, default = false) - * @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, bool HandleKeyGroupConflicts) { - int MIDIKey = itNoteOnEvent->Param.Note.Key; - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[MIDIKey]; - ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(MIDIKey); + Pool::Iterator Engine::LaunchVoice ( + LinuxSampler::EngineChannel* pEngineChannel, + Pool::Iterator& itNoteOnEvent, + int iLayer, + bool ReleaseTriggerVoice, + bool VoiceStealing, + bool HandleKeyGroupConflicts + ) { + EngineChannel* pChannel = static_cast(pEngineChannel); + int MIDIKey = itNoteOnEvent->Param.Note.Key; + EngineChannel::MidiKey* pKey = &pChannel->pMIDIKeyInfo[MIDIKey]; + ::gig::Region* pRegion = pChannel->pInstrument->GetRegion(MIDIKey); // if nothing defined for this key if (!pRegion) return Pool::Iterator(); // nothing to do @@ -1246,9 +176,9 @@ // 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]; + uint** ppKeyGroup = &pChannel->ActiveKeyGroups[iKeyGroup]; if (*ppKeyGroup) { // if there's already an active key in that key group - midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup]; + EngineChannel::MidiKey* pOtherKey = &pChannel->pMIDIKeyInfo[**ppKeyGroup]; // kill all voices on the (other) key RTList::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); RTList::Iterator end = pOtherKey->pActiveVoices->end(); @@ -1280,90 +210,90 @@ DimValues[i] = itNoteOnEvent->Param.Note.Velocity; break; case ::gig::dimension_channelaftertouch: - DimValues[i] = pEngineChannel->ControllerTable[128]; + DimValues[i] = pChannel->ControllerTable[128]; 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 * pRegion->pDimensionDefinitions[i].zones); + DimValues[i] = (uint) (pChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones); break; case ::gig::dimension_roundrobin: - DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on + DimValues[i] = (uint) pChannel->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]; + DimValues[i] = pChannel->ControllerTable[1]; break; case ::gig::dimension_breath: - DimValues[i] = pEngineChannel->ControllerTable[2]; + DimValues[i] = pChannel->ControllerTable[2]; break; case ::gig::dimension_foot: - DimValues[i] = pEngineChannel->ControllerTable[4]; + DimValues[i] = pChannel->ControllerTable[4]; break; case ::gig::dimension_portamentotime: - DimValues[i] = pEngineChannel->ControllerTable[5]; + DimValues[i] = pChannel->ControllerTable[5]; break; case ::gig::dimension_effect1: - DimValues[i] = pEngineChannel->ControllerTable[12]; + DimValues[i] = pChannel->ControllerTable[12]; break; case ::gig::dimension_effect2: - DimValues[i] = pEngineChannel->ControllerTable[13]; + DimValues[i] = pChannel->ControllerTable[13]; break; case ::gig::dimension_genpurpose1: - DimValues[i] = pEngineChannel->ControllerTable[16]; + DimValues[i] = pChannel->ControllerTable[16]; break; case ::gig::dimension_genpurpose2: - DimValues[i] = pEngineChannel->ControllerTable[17]; + DimValues[i] = pChannel->ControllerTable[17]; break; case ::gig::dimension_genpurpose3: - DimValues[i] = pEngineChannel->ControllerTable[18]; + DimValues[i] = pChannel->ControllerTable[18]; break; case ::gig::dimension_genpurpose4: - DimValues[i] = pEngineChannel->ControllerTable[19]; + DimValues[i] = pChannel->ControllerTable[19]; break; case ::gig::dimension_sustainpedal: - DimValues[i] = pEngineChannel->ControllerTable[64]; + DimValues[i] = pChannel->ControllerTable[64]; break; case ::gig::dimension_portamento: - DimValues[i] = pEngineChannel->ControllerTable[65]; + DimValues[i] = pChannel->ControllerTable[65]; break; case ::gig::dimension_sostenutopedal: - DimValues[i] = pEngineChannel->ControllerTable[66]; + DimValues[i] = pChannel->ControllerTable[66]; break; case ::gig::dimension_softpedal: - DimValues[i] = pEngineChannel->ControllerTable[67]; + DimValues[i] = pChannel->ControllerTable[67]; break; case ::gig::dimension_genpurpose5: - DimValues[i] = pEngineChannel->ControllerTable[80]; + DimValues[i] = pChannel->ControllerTable[80]; break; case ::gig::dimension_genpurpose6: - DimValues[i] = pEngineChannel->ControllerTable[81]; + DimValues[i] = pChannel->ControllerTable[81]; break; case ::gig::dimension_genpurpose7: - DimValues[i] = pEngineChannel->ControllerTable[82]; + DimValues[i] = pChannel->ControllerTable[82]; break; case ::gig::dimension_genpurpose8: - DimValues[i] = pEngineChannel->ControllerTable[83]; + DimValues[i] = pChannel->ControllerTable[83]; break; case ::gig::dimension_effect1depth: - DimValues[i] = pEngineChannel->ControllerTable[91]; + DimValues[i] = pChannel->ControllerTable[91]; break; case ::gig::dimension_effect2depth: - DimValues[i] = pEngineChannel->ControllerTable[92]; + DimValues[i] = pChannel->ControllerTable[92]; break; case ::gig::dimension_effect3depth: - DimValues[i] = pEngineChannel->ControllerTable[93]; + DimValues[i] = pChannel->ControllerTable[93]; break; case ::gig::dimension_effect4depth: - DimValues[i] = pEngineChannel->ControllerTable[94]; + DimValues[i] = pChannel->ControllerTable[94]; break; case ::gig::dimension_effect5depth: - DimValues[i] = pEngineChannel->ControllerTable[95]; + DimValues[i] = pChannel->ControllerTable[95]; break; case ::gig::dimension_none: std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush; @@ -1387,7 +317,7 @@ Pool::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); if (itNewVoice) { // launch the new voice - if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pDimRgn, VoiceType, iKeyGroup) < 0) { + if (itNewVoice->Trigger(pChannel, itNoteOnEvent, pChannel->Pitch, pDimRgn, VoiceType, iKeyGroup) < 0) { dmsg(4,("Voice not triggered\n")); pKey->pActiveVoices->free(itNewVoice); } @@ -1395,11 +325,11 @@ --VoiceSpawnsLeft; if (!pKey->Active) { // mark as active key pKey->Active = true; - pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend(); + pKey->itSelf = pChannel->pActiveKeys->allocAppend(); *pKey->itSelf = itNoteOnEvent->Param.Note.Key; } if (itNewVoice->KeyGroup) { - uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; + uint** ppKeyGroup = &pChannel->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) @@ -1408,7 +338,7 @@ } else if (VoiceStealing) { // try to steal one voice - int result = StealVoice(pEngineChannel, itNoteOnEvent); + int result = StealVoice(pChannel, 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(); @@ -1425,852 +355,17 @@ return Pool::Iterator(); // no free voice or error } - /** - * Will be called by LaunchVoice() method in case there are no free - * voices left. This method will select and kill one old voice for - * 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 - * @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing - */ - 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 (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, then procceed with - // 'oldestkey' algorithm - case voice_steal_algo_oldestvoiceonkey: { - midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; - 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; - 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; - } - - // don't steal anything - case voice_steal_algo_none: - default: { - dmsg(1,("No free voice (voice stealing disabled)!\n")); - return -1; - } - } - - // 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(); - // 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]; - - #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 - } - } - - // 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); - - --VoiceSpawnsLeft; - - return 0; // success - } - else { - dmsg(1,("Event pool emtpy!\n")); - return -1; - } - } - - /** - * Removes the given voice from the MIDI key's list of active voices. - * This method will be called when a voice went inactive, e.g. because - * 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(EngineChannel* pEngineChannel, Pool::Iterator& itVoice) { - if (itVoice) { - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey]; - - uint keygroup = itVoice->KeyGroup; - - // if the sample and dimension region belong to an - // instrument that is unloaded, tell the disk thread to - // release them - if (itVoice->Orphan) { - pDiskThread->OrderDeletionOfDimreg(itVoice->pDimRgn); - } - - // free the voice object - pVoicePool->free(itVoice); - - // if no other voices left and member of a key group, remove from key group - if (pKey->pActiveVoices->isEmpty() && keygroup) { - uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup]; - if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group - } - } - else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush; - } - - /** - * 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(EngineChannel* pEngineChannel, midi_key_info_t* pKey) { - if (pKey->pActiveVoices->isEmpty()) { - pKey->Active = false; - pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys - pKey->itSelf = RTList::Iterator(); - pKey->ReleaseTrigger = false; - pKey->pEvents->clear(); - dmsg(3,("Key has no more voices now\n")); - } - else dmsg(1,("gig::Engine: Oops, tried to free a key which contains voices.\n")); - } - - /** - * 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(EngineChannel* pEngineChannel, Pool::Iterator& itControlChangeEvent) { - dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); - - // handle the "control triggered" MIDI rule: a control change - // event can trigger a new note on or note off event - if (pEngineChannel->pInstrument) { - - ::gig::MidiRule* rule; - for (int i = 0 ; (rule = pEngineChannel->pInstrument->GetMidiRule(i)) ; i++) { - - if (::gig::MidiRuleCtrlTrigger* ctrlTrigger = - dynamic_cast< ::gig::MidiRuleCtrlTrigger*>(rule)) { - if (itControlChangeEvent->Param.CC.Controller == - ctrlTrigger->ControllerNumber) { - - uint8_t oldCCValue = pEngineChannel->ControllerTable[ - itControlChangeEvent->Param.CC.Controller]; - uint8_t newCCValue = itControlChangeEvent->Param.CC.Value; - - for (int i = 0 ; i < ctrlTrigger->Triggers ; i++) { - ::gig::MidiRuleCtrlTrigger::trigger_t* pTrigger = - &ctrlTrigger->pTriggers[i]; - - // check if the controller has passed the - // trigger point in the right direction - if ((pTrigger->Descending && - oldCCValue > pTrigger->TriggerPoint && - newCCValue <= pTrigger->TriggerPoint) || - (!pTrigger->Descending && - oldCCValue < pTrigger->TriggerPoint && - newCCValue >= pTrigger->TriggerPoint)) { - - RTList::Iterator itNewEvent = pGlobalEvents->allocAppend(); - if (itNewEvent) { - *itNewEvent = *itControlChangeEvent; - itNewEvent->Param.Note.Key = pTrigger->Key; - - if (pTrigger->NoteOff || pTrigger->Velocity == 0) { - itNewEvent->Type = Event::type_note_off; - itNewEvent->Param.Note.Velocity = 100; - - ProcessNoteOff(pEngineChannel, itNewEvent); - } else { - itNewEvent->Type = Event::type_note_on; - //TODO: if Velocity is 255, the triggered velocity should - // depend on how fast the controller is moving - itNewEvent->Param.Note.Velocity = - pTrigger->Velocity == 255 ? 100 : - pTrigger->Velocity; - - ProcessNoteOn(pEngineChannel, itNewEvent); - } - } - else dmsg(1,("Event pool emtpy!\n")); - } - } - } - } - } - } - - // update controller value in the engine channel's controller table - pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; - - // handle hard coded MIDI controllers - 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 6: { // data entry (currently only used for RPN controllers) - if (pEngineChannel->GetMidiRpnController() == 2) { // coarse tuning in half tones - int transpose = (int) itControlChangeEvent->Param.CC.Value - 64; - // limit to +- two octaves for now - transpose = RTMath::Min(transpose, 24); - transpose = RTMath::Max(transpose, -24); - pEngineChannel->GlobalTranspose = transpose; - // workaround, so we won't have hanging notes - ReleaseAllVoices(pEngineChannel, itControlChangeEvent); - } - // to avoid other MIDI CC #6 messages to be misenterpreted as RPN controller data - pEngineChannel->ResetMidiRpnController(); - break; - } - case 7: { // volume - //TODO: not sample accurate yet - pEngineChannel->MidiVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value]; - pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag - break; - } - case 10: { // panpot - //TODO: not sample accurate yet - pEngineChannel->GlobalPanLeft = PanCurve[128 - itControlChangeEvent->Param.CC.Value]; - pEngineChannel->GlobalPanRight = PanCurve[itControlChangeEvent->Param.CC.Value]; - pEngineChannel->iLastPanRequest = itControlChangeEvent->Param.CC.Value; - break; - } - case 64: { // sustain - if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { - 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(); - 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,("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(); - 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 - const bool bPortamento = itControlChangeEvent->Param.CC.Value >= 64; - if (bPortamento != pEngineChannel->PortamentoMode) - KillAllVoices(pEngineChannel, itControlChangeEvent); - pEngineChannel->PortamentoMode = bPortamento; - 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; - } - case 100: { // RPN controller LSB - pEngineChannel->SetMidiRpnControllerLsb(itControlChangeEvent->Param.CC.Value); - break; - } - case 101: { // RPN controller MSB - pEngineChannel->SetMidiRpnControllerMsb(itControlChangeEvent->Param.CC.Value); - break; - } - - - // 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 - #if CONFIG_PROCESS_ALL_NOTES_OFF - ReleaseAllVoices(pEngineChannel, itControlChangeEvent); - #endif // CONFIG_PROCESS_ALL_NOTES_OFF - break; - } - case 126: { // mono mode on - if (!pEngineChannel->SoloMode) - KillAllVoices(pEngineChannel, itControlChangeEvent); - pEngineChannel->SoloMode = true; - break; - } - case 127: { // poly mode on - if (pEngineChannel->SoloMode) - KillAllVoices(pEngineChannel, itControlChangeEvent); - pEngineChannel->SoloMode = false; - break; - } - } - - // handle FX send controllers - if (!pEngineChannel->fxSends.empty()) { - for (int iFxSend = 0; iFxSend < pEngineChannel->GetFxSendCount(); iFxSend++) { - FxSend* pFxSend = pEngineChannel->GetFxSend(iFxSend); - if (pFxSend->MidiController() == itControlChangeEvent->Param.CC.Controller) { - pFxSend->SetLevel(itControlChangeEvent->Param.CC.Value); - pFxSend->SetInfoChanged(true); - } - } - } - } - - /** - * Reacts on MIDI system exclusive messages. - * - * @param itSysexEvent - sysex data size and time stamp of the sysex event - */ - void Engine::ProcessSysex(Pool::Iterator& itSysexEvent) { - RingBuffer::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader(); - - uint8_t exclusive_status, id; - if (!reader.pop(&exclusive_status)) goto free_sysex_data; - if (!reader.pop(&id)) goto free_sysex_data; - if (exclusive_status != 0xF0) goto free_sysex_data; - - switch (id) { - case 0x7f: { // (Realtime) Universal Sysex (GM Standard) - uint8_t sysex_channel, sub_id1, sub_id2, val_msb, val_lsb;; - if (!reader.pop(&sysex_channel)) goto free_sysex_data; - if (!reader.pop(&sub_id1)) goto free_sysex_data; - if (!reader.pop(&sub_id2)) goto free_sysex_data; - if (!reader.pop(&val_lsb)) goto free_sysex_data; - if (!reader.pop(&val_msb)) goto free_sysex_data; - //TODO: for now we simply ignore the sysex channel, seldom used anyway - switch (sub_id1) { - case 0x04: // Device Control - switch (sub_id2) { - case 0x01: { // Master Volume - const double volume = - double((uint(val_msb)<<7) | uint(val_lsb)) / 16383.0; - #if CONFIG_MASTER_VOLUME_SYSEX_BY_PORT - // apply volume to all sampler channels that - // are connected to the same MIDI input port - // this sysex message arrived on - for (int i = 0; i < engineChannels.size(); ++i) { - EngineChannel* pEngineChannel = engineChannels[i]; - if (pEngineChannel->GetMidiInputPort() == - itSysexEvent->pMidiInputPort) - { - pEngineChannel->Volume(volume); - } - } - #else - // apply volume globally to the whole sampler - GLOBAL_VOLUME = volume; - #endif // CONFIG_MASTER_VOLUME_SYSEX_BY_PORT - break; - } - } - break; - } - break; - } - 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; - if (!reader.pop(&cmd_id)) goto free_sysex_data; - if (model_id != 0x42 /*GS*/) goto free_sysex_data; - if (cmd_id != 0x12 /*DT1*/) goto free_sysex_data; - - // command address - uint8_t addr[3]; // 2 byte addr MSB, followed by 1 byte addr LSB) - 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")); - if (addr[2] == 0x7f) { // GS reset - for (int i = 0; i < engineChannels.size(); ++i) { - EngineChannel* pEngineChannel = engineChannels[i]; - if (pEngineChannel->GetMidiInputPort() == itSysexEvent->pMidiInputPort) { - KillAllVoices(pEngineChannel, itSysexEvent); - pEngineChannel->ResetControllers(); - } - } - } - } - 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) - 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 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; - } - case 0x15: { // chromatic / drumkit mode - dmsg(3,("\t\tMIDI Instrument Map Switch\n")); - uint8_t part = addr[1] & 0x0f; - uint8_t map; - if (!reader.pop(&map)) goto free_sysex_data; - for (int i = 0; i < engineChannels.size(); ++i) { - EngineChannel* pEngineChannel = engineChannels[i]; - if ( - (pEngineChannel->midiChannel == part || - pEngineChannel->midiChannel == midi_chan_all) && - pEngineChannel->GetMidiInputPort() == itSysexEvent->pMidiInputPort - ) { - try { - pEngineChannel->SetMidiInstrumentMap(map); - } catch (Exception e) { - dmsg(2,("\t\t\tCould not apply MIDI instrument map %d to part %d: %s\n", map, part, e.Message().c_str())); - goto free_sysex_data; - } catch (...) { - dmsg(2,("\t\t\tCould not apply MIDI instrument map %d to part %d (unknown exception)\n", map, part)); - goto free_sysex_data; - } - } - } - dmsg(3,("\t\t\tApplied MIDI instrument map %d to part %d.\n", map, part)); - break; - } - } - } - else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x20) { // Part Parameters (2) - } - else if (addr[0] == 0x41) { // Drum Setup Parameters - } - break; - } - } - - free_sysex_data: // finally free sysex data - pSysexBuffer->increment_read_ptr(itSysexEvent->Param.Sysex.Size); - } - - /** - * Calculates the Roland GS sysex check sum. - * - * @param AddrReader - reader which currently points to the first GS - * command address byte of the GS sysex message in - * question - * @param DataSize - size of the GS message data (in bytes) - */ - uint8_t Engine::GSCheckSum(const RingBuffer::NonVolatileReader AddrReader, uint DataSize) { - RingBuffer::NonVolatileReader reader = AddrReader; - uint bytes = 3 /*addr*/ + DataSize; - uint8_t addr_and_data[bytes]; - reader.read(&addr_and_data[0], bytes); - uint8_t sum = 0; - for (uint i = 0; i < bytes; i++) sum += addr_and_data[i]; - return 128 - sum % 128; - } - - /** - * Allows to tune each of the twelve semitones of an octave. - * - * @param ScaleTunes - detuning of all twelve semitones (in cents) - */ - void Engine::AdjustScale(int8_t ScaleTunes[12]) { - memcpy(&this->ScaleTuning[0], &ScaleTunes[0], 12); //TODO: currently not sample accurate - } - - /** - * 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. - */ - 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() { - return atomic_read(&ActiveVoiceCount); - } - - void Engine::SetVoiceCount(uint Count) { - atomic_set(&ActiveVoiceCount, Count); - } - - uint Engine::VoiceCountMax() { - return ActiveVoiceCountMax; - } - - int Engine::MaxVoices() { - return pVoicePool->poolSize(); - } - - void Engine::SetMaxVoices(int iVoices) throw (Exception) { - if (iVoices < 1) - throw Exception("Maximum voices for an engine cannot be set lower than 1"); - - SuspendAll(); - - // NOTE: we need to clear pDimRegionsInUse before deleting pDimRegionPool, - // otherwise memory corruption will occur if there are active voices (see bug #118) - for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) { - engineChannels[iChannel]->ClearDimRegionsInUse(); - } - - if (pDimRegionPool[0]) delete pDimRegionPool[0]; - if (pDimRegionPool[1]) delete pDimRegionPool[1]; - - pDimRegionPool[0] = new Pool< ::gig::DimensionRegion*>(iVoices); - pDimRegionPool[1] = new Pool< ::gig::DimensionRegion*>(iVoices); - - for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) { - engineChannels[iChannel]->ResetDimRegionsInUse(); - } - - try { - pVoicePool->resizePool(iVoices); - } catch (...) { - throw Exception("FATAL: Could not resize voice pool!"); - } - - for (RTList::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { - iterVoice->SetEngine(this); - iterVoice->pDiskThread = this->pDiskThread; - } - pVoicePool->clear(); - - ResumeAll(); - } - bool Engine::DiskStreamSupported() { return true; } - uint Engine::DiskStreamCount() { - return (pDiskThread) ? pDiskThread->GetActiveStreamCount() : 0; - } - - uint Engine::DiskStreamCountMax() { - return (pDiskThread) ? pDiskThread->ActiveStreamCountMax : 0; - } - - int Engine::MaxDiskStreams() { - return iMaxDiskStreams; - } - - void Engine::SetMaxDiskStreams(int iStreams) throw (Exception) { - if (iStreams < 0) - throw Exception("Maximum disk streams for an engine cannot be set lower than 0"); - - SuspendAll(); - - iMaxDiskStreams = iStreams; - - // reconnect to audio output device, because that will automatically - // recreate the disk thread with the required amount of streams - if (pAudioOutputDevice) Connect(pAudioOutputDevice); - - ResumeAll(); - } - - String Engine::DiskStreamBufferFillBytes() { - return pDiskThread->GetBufferFillBytes(); - } - - String Engine::DiskStreamBufferFillPercentage() { - return pDiskThread->GetBufferFillPercentage(); - } - - String Engine::EngineName() { - return LS_GIG_ENGINE_NAME; - } - String Engine::Description() { - return "Gigasampler Format Engine"; + return "GigaSampler Format Engine"; } String Engine::Version() { - String s = "$Revision: 1.104 $"; + String s = "$Revision: 1.105 $"; return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword } - InstrumentManager* Engine::GetInstrumentManager() { - return &instruments; - } - - // static constant initializers - const Engine::FloatTable Engine::VolumeCurve(InitVolumeCurve()); - const Engine::FloatTable Engine::PanCurve(InitPanCurve()); - const Engine::FloatTable Engine::CrossfadeCurve(InitCrossfadeCurve()); - - 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::InitCrossfadeCurve() { - // line-segment approximation - const float segments[] = { - 0, 0, 1, 0.03, 10, 0.1, 51, 0.58, 127, 1 - }; - return InitCurve(segments); - } - - 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