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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005-2009 Christian Schoenebeck * |
* Copyright (C) 2005-2008 Christian Schoenebeck * |
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* Copyright (C) 2009 Grigor Iliev * |
* Copyright (C) 2009-2013 Christian Schoenebeck and Grigor Iliev * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
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bool bChangeInstrument; ///< Set to true by the loader when the channel should change instrument. |
bool bChangeInstrument; ///< Set to true by the loader when the channel should change instrument. |
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I* pInstrument; ///< The new instrument. Also used by the loader to read the previously loaded instrument. |
I* pInstrument; ///< The new instrument. Also used by the loader to read the previously loaded instrument. |
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RTList<R*>* pRegionsInUse; ///< List of dimension regions in use by the currently loaded instrument. Continuously updated by the audio thread. |
RTList<R*>* pRegionsInUse; ///< List of dimension regions in use by the currently loaded instrument. Continuously updated by the audio thread. |
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InstrumentScript* pScript; ///< Instrument script to be executed for this instrument, or NULL if instrument does not have a script. |
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}; |
}; |
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template<class R> |
template<class R> |
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typedef typename RTList<R*>::Iterator RTListRegionIterator; |
typedef typename RTList<R*>::Iterator RTListRegionIterator; |
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typedef typename MidiKeyboardManager<V>::MidiKey MidiKey; |
typedef typename MidiKeyboardManager<V>::MidiKey MidiKey; |
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virtual MidiKeyboardManagerBase* GetMidiKeyboardManager() OVERRIDE { |
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return this; |
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} |
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virtual void HandBack(I* Instrument) { |
virtual void HandBack(I* Instrument) { |
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ResourceManager<InstrumentManager::instrument_id_t, I>* mgr = |
ResourceManager<InstrumentManager::instrument_id_t, I>* mgr = |
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dynamic_cast<ResourceManager<InstrumentManager::instrument_id_t, I>*>(pEngine->GetInstrumentManager()); |
dynamic_cast<ResourceManager<InstrumentManager::instrument_id_t, I>*>(pEngine->GetInstrumentManager()); |
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virtual void ClearRegionsInUse() { |
virtual void ClearRegionsInUse() { |
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{ |
{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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if(cmd.pRegionsInUse != NULL) cmd.pRegionsInUse->clear(); |
if (cmd.pRegionsInUse) cmd.pRegionsInUse->clear(); |
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cmd.bChangeInstrument = false; |
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} |
} |
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{ |
{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
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if(cmd.pRegionsInUse != NULL) cmd.pRegionsInUse->clear(); |
if (cmd.pRegionsInUse) cmd.pRegionsInUse->clear(); |
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cmd.bChangeInstrument = false; |
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} |
} |
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} |
} |
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} |
} |
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virtual void DeleteRegionsInUse() { |
virtual void DeleteRegionsInUse() { |
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RTList<R*>* previous = NULL; // prevent double free |
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{ |
{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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if(cmd.pRegionsInUse != NULL) { |
if (cmd.pRegionsInUse) { |
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previous = cmd.pRegionsInUse; |
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delete cmd.pRegionsInUse; |
delete cmd.pRegionsInUse; |
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cmd.pRegionsInUse = NULL; |
cmd.pRegionsInUse = NULL; |
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} |
} |
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cmd.bChangeInstrument = false; |
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} |
} |
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{ |
{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
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if(cmd.pRegionsInUse != NULL) { |
if (cmd.pRegionsInUse) { |
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delete cmd.pRegionsInUse; |
if (cmd.pRegionsInUse != previous) |
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delete cmd.pRegionsInUse; |
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cmd.pRegionsInUse = NULL; |
cmd.pRegionsInUse = NULL; |
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} |
} |
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cmd.bChangeInstrument = false; |
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} |
} |
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} |
} |
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{ |
{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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cmd.pRegionsInUse = new RTList<R*>(pRegionPool[0]); |
cmd.pRegionsInUse = new RTList<R*>(pRegionPool[0]); |
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cmd.bChangeInstrument = false; |
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} |
} |
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{ |
{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
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cmd.pRegionsInUse = new RTList<R*>(pRegionPool[1]); |
cmd.pRegionsInUse = new RTList<R*>(pRegionPool[1]); |
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cmd.bChangeInstrument = false; |
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} |
} |
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} |
} |
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if (pEngine->pAudioOutputDevice == pAudioOut) return; |
if (pEngine->pAudioOutputDevice == pAudioOut) return; |
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DisconnectAudioOutputDevice(); |
DisconnectAudioOutputDevice(); |
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} |
} |
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pEngine = AbstractEngine::AcquireEngine(this, pAudioOut); |
AbstractEngine* newEngine = AbstractEngine::AcquireEngine(this, pAudioOut); |
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{ |
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LockGuard lock(EngineMutex); |
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pEngine = newEngine; |
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} |
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ResetInternal(); |
ResetInternal(); |
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pEvents = new RTList<Event>(pEngine->pEventPool); |
pEvents = new RTList<Event>(pEngine->pEventPool); |
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ResetInternal(); |
ResetInternal(); |
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DeleteRegionsInUse(); |
DeleteRegionsInUse(); |
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UnloadScriptInUse(); |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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if (cmd.pInstrument) { |
if (cmd.pInstrument) { |
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MidiKeyboardManager<V>::DeleteActiveVoices(); |
MidiKeyboardManager<V>::DeleteActiveVoices(); |
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MidiKeyboardManager<V>::DeleteEvents(); |
MidiKeyboardManager<V>::DeleteEvents(); |
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DeleteGroupEventLists(); |
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AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice; |
AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice; |
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pEngine = NULL; |
{ |
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LockGuard lock(EngineMutex); |
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pEngine = NULL; |
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} |
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AbstractEngine::FreeEngine(this, oldAudioDevice); |
AbstractEngine::FreeEngine(this, oldAudioDevice); |
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AudioDeviceChannelLeft = -1; |
AudioDeviceChannelLeft = -1; |
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AudioDeviceChannelRight = -1; |
AudioDeviceChannelRight = -1; |
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pEvents->clear(); |
pEvents->clear(); |
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// empty MIDI key specific event lists |
// empty MIDI key specific event lists |
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ClearEventListsHandler handler; |
ClearEventListsHandler handler; |
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ProcessActiveVoices(&handler); |
this->ProcessActiveVoices(&handler); |
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// empty exclusive group specific event lists |
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// (pInstrument == 0 could mean that LoadInstrument is |
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// building new group event lists, so we must check |
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// for that) |
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if (pInstrument) ClearGroupEventLists(); |
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} |
} |
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// implementation of abstract methods derived from interface class 'InstrumentConsumer' |
// implementation of abstract methods derived from interface class 'InstrumentConsumer' |
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* we are currently using on this EngineChannel is going to be updated, |
* we are currently using on this EngineChannel is going to be updated, |
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* so we can stop playback before that happens. |
* so we can stop playback before that happens. |
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*/ |
*/ |
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virtual void ResourceToBeUpdated(I* pResource, void*& pUpdateArg) { |
virtual void ResourceToBeUpdated(I* pResource, void*& pUpdateArg) OVERRIDE { |
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dmsg(3,("EngineChannelBase: Received instrument update message.\n")); |
dmsg(3,("EngineChannelBase: Received instrument update message.\n")); |
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if (pEngine) pEngine->DisableAndLock(); |
if (pEngine) pEngine->DisableAndLock(); |
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ResetInternal(); |
ResetInternal(); |
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* Will be called by the InstrumentResourceManager when the instrument |
* Will be called by the InstrumentResourceManager when the instrument |
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* update process was completed, so we can continue with playback. |
* update process was completed, so we can continue with playback. |
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*/ |
*/ |
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virtual void ResourceUpdated(I* pOldResource, I* pNewResource, void* pUpdateArg) { |
virtual void ResourceUpdated(I* pOldResource, I* pNewResource, void* pUpdateArg) OVERRIDE { |
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this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument()) |
this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument()) |
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if (pEngine) pEngine->Enable(); |
if (pEngine) pEngine->Enable(); |
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bStatusChanged = true; // status of engine has changed, so set notify flag |
bStatusChanged = true; // status of engine has changed, so set notify flag |
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* |
* |
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* @param fProgress - current progress as value between 0.0 and 1.0 |
* @param fProgress - current progress as value between 0.0 and 1.0 |
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*/ |
*/ |
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virtual void OnResourceProgress(float fProgress) { |
virtual void OnResourceProgress(float fProgress) OVERRIDE { |
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this->InstrumentStat = int(fProgress * 100.0f); |
this->InstrumentStat = int(fProgress * 100.0f); |
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dmsg(7,("EngineChannelBase: progress %d%", InstrumentStat)); |
dmsg(7,("EngineChannelBase: progress %d%", InstrumentStat)); |
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bStatusChanged = true; // status of engine has changed, so set notify flag |
bStatusChanged = true; // status of engine has changed, so set notify flag |
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void RenderActiveVoices(uint Samples) { |
void RenderActiveVoices(uint Samples) { |
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RenderVoicesHandler handler(this, Samples); |
RenderVoicesHandler handler(this, Samples); |
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ProcessActiveVoices(&handler); |
this->ProcessActiveVoices(&handler); |
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SetVoiceCount(handler.VoiceCount); |
SetVoiceCount(handler.VoiceCount); |
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SetDiskStreamCount(handler.StreamCount); |
SetDiskStreamCount(handler.StreamCount); |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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cmd.pRegionsInUse = NULL; |
cmd.pRegionsInUse = NULL; |
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cmd.pInstrument = NULL; |
cmd.pInstrument = NULL; |
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cmd.pScript = new InstrumentScript(this); |
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cmd.bChangeInstrument = false; |
cmd.bChangeInstrument = false; |
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} |
} |
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{ |
{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
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cmd.pRegionsInUse = NULL; |
cmd.pRegionsInUse = NULL; |
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cmd.pInstrument = NULL; |
cmd.pInstrument = NULL; |
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cmd.pScript = new InstrumentScript(this); |
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cmd.bChangeInstrument = false; |
cmd.bChangeInstrument = false; |
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} |
} |
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} |
} |
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virtual ~EngineChannelBase() { } |
virtual ~EngineChannelBase() { |
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InstrumentScript* previous = NULL; // prevent double free |
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{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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if (cmd.pScript) { |
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previous = cmd.pScript; |
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delete cmd.pScript; |
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cmd.pScript = NULL; |
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} |
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} |
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{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
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if (cmd.pScript) { |
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if (previous != cmd.pScript) |
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delete cmd.pScript; |
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cmd.pScript = NULL; |
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} |
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} |
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} |
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typedef typename RTList<V>::Iterator RTListVoiceIterator; |
typedef typename RTList<V>::Iterator RTListVoiceIterator; |
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if ((itVoice->DiskStreamRef).State != Stream::state_unused) StreamCount++; |
if ((itVoice->DiskStreamRef).State != Stream::state_unused) StreamCount++; |
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} |
} |
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} else { // voice reached end, is now inactive |
} else { // voice reached end, is now inactive |
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itVoice->VoiceFreed(); |
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pChannel->FreeVoice(itVoice); // remove voice from the list of active voices |
pChannel->FreeVoice(itVoice); // remove voice from the list of active voices |
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} |
} |
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} |
} |
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} |
} |
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/** |
/** |
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* Unload the currently used and loaded real-time instrument script. |
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* The source code of the script is retained, so that it can still |
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* be reloaded. |
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*/ |
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void UnloadScriptInUse() { |
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{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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if (cmd.pScript) pScript->unload(); |
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} |
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{ |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.SwitchConfig(); |
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if (cmd.pScript) pScript->unload(); |
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} |
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} |
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/** |
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* Load real-time instrument script and all its resources required |
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* for the upcoming instrument change. |
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* |
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* @param text - source code of script |
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*/ |
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void LoadInstrumentScript(const String& text) { |
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InstrumentChangeCmd<R, I>& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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// load the new script |
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cmd.pScript->load(text); |
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} |
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/** |
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* Changes the instrument for an engine channel. |
* Changes the instrument for an engine channel. |
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* |
* |
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* @param pInstrument - new instrument |
* @param pInstrument - new instrument |
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} |
} |
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virtual void ProcessKeySwitchChange(int key) = 0; |
virtual void ProcessKeySwitchChange(int key) = 0; |
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/** |
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* Handle key group (a.k.a. exclusive group) conflicts |
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*/ |
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void HandleKeyGroupConflicts(uint KeyGroup, Pool<Event>::Iterator& itNoteOnEvent, bool UseRelease = false) { |
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if (KeyGroup) { // if this voice / key belongs to a key group |
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uint* pKeyGroup = MidiKeyboardManager<V>::ActiveKeyGroups[KeyGroup]; |
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if (pKeyGroup) { // if there's already an active key in that key group |
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MidiKey* pOtherKey = &MidiKeyboardManager<V>::pMIDIKeyInfo[*pKeyGroup]; |
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if (UseRelease) { |
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// send a note off to the other key |
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if (pOtherKey->KeyPressed && itNoteOnEvent->Param.Note.Key != *pKeyGroup) { |
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RTList<Event>::Iterator itNewEvent = pEngine->pGlobalEvents->allocAppend(); |
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if (itNewEvent) { |
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pOtherKey->ReleaseTrigger = false; |
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*itNewEvent = *itNoteOnEvent; |
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itNewEvent->Type = Event::type_note_off; |
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itNewEvent->Param.Note.Key = *pKeyGroup; |
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pEngine->ProcessNoteOff(this, itNewEvent); |
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} |
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} |
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} else { |
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// kill all voices on the (other) key |
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typename RTList<V>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
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typename RTList<V>::Iterator end = pOtherKey->pActiveVoices->end(); |
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for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
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if (itVoiceToBeKilled->Type != Voice::type_release_trigger) { |
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itVoiceToBeKilled->Kill(itNoteOnEvent); |
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--pEngine->VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict |
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} |
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} |
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} |
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} |
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} |
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} |
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}; |
}; |
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} // namespace LinuxSampler |
} // namespace LinuxSampler |