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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 Christian Schoenebeck * |
* Copyright (C) 2005, 2006 Christian Schoenebeck * |
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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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#include "EngineChannel.h" |
#include "EngineChannel.h" |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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EngineChannel::EngineChannel() { |
EngineChannel::EngineChannel() { |
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pMIDIKeyInfo = new midi_key_info_t[128]; |
pMIDIKeyInfo = new midi_key_info_t[128]; |
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pEngine = NULL; |
pEngine = NULL; |
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pInstrument = NULL; |
pInstrument = NULL; |
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pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
pEvents = NULL; // we allocate when we retrieve the right Engine object |
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pEventQueue = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0); |
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pActiveKeys = new Pool<uint>(128); |
pActiveKeys = new Pool<uint>(128); |
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for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
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pMIDIKeyInfo[i].pActiveVoices = NULL; // we allocate when we retrieve the right Engine object |
pMIDIKeyInfo[i].pActiveVoices = NULL; // we allocate when we retrieve the right Engine object |
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pMIDIKeyInfo[i].Active = false; |
pMIDIKeyInfo[i].Active = false; |
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pMIDIKeyInfo[i].ReleaseTrigger = false; |
pMIDIKeyInfo[i].ReleaseTrigger = false; |
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pMIDIKeyInfo[i].pEvents = NULL; // we allocate when we retrieve the right Engine object |
pMIDIKeyInfo[i].pEvents = NULL; // we allocate when we retrieve the right Engine object |
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pMIDIKeyInfo[i].VoiceTheftsQueued = 0; |
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pMIDIKeyInfo[i].RoundRobinIndex = 0; |
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} |
} |
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InstrumentIdx = -1; |
InstrumentIdx = -1; |
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InstrumentStat = -1; |
InstrumentStat = -1; |
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AudioDeviceChannelLeft = -1; |
AudioDeviceChannelLeft = -1; |
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AudioDeviceChannelRight = -1; |
AudioDeviceChannelRight = -1; |
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pMidiInputPort = NULL; |
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midiChannel = midi_chan_all; |
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ResetControllers(); |
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SoloMode = false; |
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PortamentoMode = false; |
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PortamentoTime = CONFIG_PORTAMENTO_TIME_DEFAULT; |
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} |
} |
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EngineChannel::~EngineChannel() { |
EngineChannel::~EngineChannel() { |
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DisconnectAudioOutputDevice(); |
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if (pInstrument) Engine::instruments.HandBack(pInstrument, this); |
if (pInstrument) Engine::instruments.HandBack(pInstrument, this); |
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for (uint i = 0; i < 128; i++) { |
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if (pMIDIKeyInfo[i].pActiveVoices) { |
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pMIDIKeyInfo[i].pActiveVoices->clear(); |
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delete pMIDIKeyInfo[i].pActiveVoices; |
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} |
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if (pMIDIKeyInfo[i].pEvents) { |
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pMIDIKeyInfo[i].pEvents->clear(); |
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delete pMIDIKeyInfo[i].pEvents; |
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} |
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} |
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if (pEventQueue) delete pEventQueue; |
if (pEventQueue) delete pEventQueue; |
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if (pActiveKeys) delete pActiveKeys; |
if (pActiveKeys) delete pActiveKeys; |
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if (pMIDIKeyInfo) delete[] pMIDIKeyInfo; |
if (pMIDIKeyInfo) delete[] pMIDIKeyInfo; |
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} |
} |
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/** |
/** |
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* Implementation of virtual method from abstract EngineChannel interface. |
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* This method will periodically be polled (e.g. by the LSCP server) to |
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* check if some engine channel parameter has changed since the last |
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* StatusChanged() call. |
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* |
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* This method can also be used to mark the engine channel as changed |
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* from outside, e.g. by a MIDI input device. The optional argument |
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* \a nNewStatus can be used for this. |
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* |
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* TODO: This "poll method" is just a lazy solution and might be |
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* replaced in future. |
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* @param bNewStatus - (optional, default: false) sets the new status flag |
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* @returns true if engine channel status has changed since last |
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* StatusChanged() call |
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*/ |
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bool EngineChannel::StatusChanged(bool bNewStatus) { |
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bool b = bStatusChanged; |
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bStatusChanged = bNewStatus; |
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return b; |
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} |
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void EngineChannel::Reset() { |
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if (pEngine) pEngine->DisableAndLock(); |
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ResetInternal(); |
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ResetControllers(); |
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if (pEngine) { |
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pEngine->Enable(); |
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pEngine->Reset(); |
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} |
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} |
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/** |
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* This method is not thread safe! |
* This method is not thread safe! |
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*/ |
*/ |
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void EngineChannel::ResetInternal() { |
void EngineChannel::ResetInternal() { |
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Pitch = 0; |
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SustainPedal = false; |
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GlobalVolume = 1.0; |
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CurrentKeyDimension = 0; |
CurrentKeyDimension = 0; |
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// set all MIDI controller values to zero |
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memset(ControllerTable, 0x00, 128); |
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// reset voice stealing parameters |
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itLastStolenVoice = RTList<Voice>::Iterator(); |
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iuiLastStolenKey = RTList<uint>::Iterator(); |
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// reset key info |
// reset key info |
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for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
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if (pMIDIKeyInfo[i].pActiveVoices) |
if (pMIDIKeyInfo[i].pActiveVoices) |
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pMIDIKeyInfo[i].Active = false; |
pMIDIKeyInfo[i].Active = false; |
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pMIDIKeyInfo[i].ReleaseTrigger = false; |
pMIDIKeyInfo[i].ReleaseTrigger = false; |
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pMIDIKeyInfo[i].itSelf = Pool<uint>::Iterator(); |
pMIDIKeyInfo[i].itSelf = Pool<uint>::Iterator(); |
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pMIDIKeyInfo[i].VoiceTheftsQueued = 0; |
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} |
} |
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SoloKey = -1; // no solo key active yet |
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PortamentoPos = -1.0f; // no portamento active yet |
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// reset all key groups |
// reset all key groups |
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std::map<uint,uint*>::iterator iter = ActiveKeyGroups.begin(); |
std::map<uint,uint*>::iterator iter = ActiveKeyGroups.begin(); |
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pEventQueue->init(); |
pEventQueue->init(); |
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if (pEngine) pEngine->ResetInternal(); |
if (pEngine) pEngine->ResetInternal(); |
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// status of engine channel has changed, so set notify flag |
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bStatusChanged = true; |
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} |
} |
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LinuxSampler::Engine* EngineChannel::GetEngine() { |
LinuxSampler::Engine* EngineChannel::GetEngine() { |
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void EngineChannel::LoadInstrument() { |
void EngineChannel::LoadInstrument() { |
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if (pEngine) pEngine->DisableAndLock(); |
if (pEngine) pEngine->DisableAndLock(); |
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ResetInternal(); |
ResetInternal(); |
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// free old instrument |
// free old instrument |
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if (pInstrument) { |
if (pInstrument) { |
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// give old instrument back to instrument manager |
// give old instrument back to instrument manager |
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catch (RIFF::Exception e) { |
catch (RIFF::Exception e) { |
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InstrumentStat = -2; |
InstrumentStat = -2; |
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String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message; |
String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message; |
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throw LinuxSamplerException(msg); |
throw Exception(msg); |
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} |
} |
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catch (InstrumentResourceManagerException e) { |
catch (InstrumentResourceManagerException e) { |
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InstrumentStat = -3; |
InstrumentStat = -3; |
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String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message(); |
String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message(); |
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throw LinuxSamplerException(msg); |
throw Exception(msg); |
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} |
} |
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catch (...) { |
catch (...) { |
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InstrumentStat = -4; |
InstrumentStat = -4; |
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throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file."); |
throw Exception("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file."); |
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} |
} |
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// rebuild ActiveKeyGroups map with key groups of current instrument |
// rebuild ActiveKeyGroups map with key groups of current instrument |
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} |
} |
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catch (AudioOutputException e) { |
catch (AudioOutputException e) { |
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String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); |
String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); |
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throw LinuxSamplerException(msg); |
throw Exception(msg); |
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} |
} |
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if (pEngine) pEngine->Enable(); |
if (pEngine) pEngine->Enable(); |
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/** |
/** |
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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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* we are currently using in this engine is going to be updated, so we |
* we are currently using on this EngineChannel is going to be updated, |
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* can stop playback before that happens. |
* so we can stop playback before that happens. |
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*/ |
*/ |
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void EngineChannel::ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg) { |
void EngineChannel::ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg) { |
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dmsg(3,("gig::Engine: Received instrument update message.\n")); |
dmsg(3,("gig::Engine: Received instrument update message.\n")); |
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void EngineChannel::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) { |
void EngineChannel::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) { |
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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 |
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} |
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/** |
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* Will be called by the InstrumentResourceManager on progress changes |
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* while loading or realoading an instrument for this EngineChannel. |
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* |
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* @param fProgress - current progress as value between 0.0 and 1.0 |
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*/ |
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void EngineChannel::OnResourceProgress(float fProgress) { |
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this->InstrumentStat = int(fProgress * 100.0f); |
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dmsg(7,("gig::EngineChannel: progress %d%", InstrumentStat)); |
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bStatusChanged = true; // status of engine has changed, so set notify flag |
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} |
} |
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void EngineChannel::Connect(AudioOutputDevice* pAudioOut) { |
void EngineChannel::Connect(AudioOutputDevice* pAudioOut) { |
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if (pEngine && pEngine->pAudioOutputDevice != pAudioOut) { |
if (pEngine) { |
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if (pEngine->pAudioOutputDevice == pAudioOut) return; |
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DisconnectAudioOutputDevice(); |
DisconnectAudioOutputDevice(); |
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} |
} |
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pEngine = Engine::AcquireEngine(this, pAudioOut); |
pEngine = Engine::AcquireEngine(this, pAudioOut); |
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ResetInternal(); |
ResetInternal(); |
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pEvents = new RTList<Event>(pEngine->pEventPool); |
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for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
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pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool); |
pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool); |
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pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEngine->pEventPool); |
pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEngine->pEventPool); |
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AudioDeviceChannelRight = 1; |
AudioDeviceChannelRight = 1; |
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pOutputLeft = pAudioOut->Channel(0)->Buffer(); |
pOutputLeft = pAudioOut->Channel(0)->Buffer(); |
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pOutputRight = pAudioOut->Channel(1)->Buffer(); |
pOutputRight = pAudioOut->Channel(1)->Buffer(); |
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MidiInputPort::AddSysexListener(pEngine); |
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} |
} |
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void EngineChannel::DisconnectAudioOutputDevice() { |
void EngineChannel::DisconnectAudioOutputDevice() { |
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if (pEngine) { // if clause to prevent disconnect loops |
if (pEngine) { // if clause to prevent disconnect loops |
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ResetInternal(); |
ResetInternal(); |
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if (pEvents) { |
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delete pEvents; |
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pEvents = NULL; |
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} |
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for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
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if (pMIDIKeyInfo[i].pActiveVoices) delete pMIDIKeyInfo[i].pActiveVoices; |
if (pMIDIKeyInfo[i].pActiveVoices) { |
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if (pMIDIKeyInfo[i].pEvents) delete pMIDIKeyInfo[i].pEvents; |
delete pMIDIKeyInfo[i].pActiveVoices; |
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pMIDIKeyInfo[i].pActiveVoices = NULL; |
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} |
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if (pMIDIKeyInfo[i].pEvents) { |
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delete pMIDIKeyInfo[i].pEvents; |
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pMIDIKeyInfo[i].pEvents = NULL; |
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} |
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} |
} |
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Engine* oldEngine = pEngine; |
Engine* oldEngine = pEngine; |
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AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice; |
AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice; |
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pEngine = NULL; |
pEngine = NULL; |
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Engine::FreeEngine(this, oldAudioDevice); |
Engine::FreeEngine(this, oldAudioDevice); |
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AudioDeviceChannelLeft = -1; |
AudioDeviceChannelLeft = -1; |
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AudioDeviceChannelRight = -1; |
AudioDeviceChannelRight = -1; |
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} |
} |
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} |
} |
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void EngineChannel::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) { |
void EngineChannel::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) { |
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if (!pEngine || !pEngine->pAudioOutputDevice) throw AudioOutputException("No audio output device connected yet."); |
if (!pEngine || !pEngine->pAudioOutputDevice) throw AudioOutputException("No audio output device connected yet."); |
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AudioChannel* pChannel = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannel); |
AudioChannel* pChannel = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannel); |
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if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel)); |
if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel)); |
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switch (EngineAudioChannel) { |
switch (EngineAudioChannel) { |
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} |
} |
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} |
} |
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void EngineChannel::Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel) { |
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if (!pMidiPort || pMidiPort == this->pMidiInputPort) return; |
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DisconnectMidiInputPort(); |
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this->pMidiInputPort = pMidiPort; |
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this->midiChannel = MidiChannel; |
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pMidiPort->Connect(this, MidiChannel); |
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} |
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void EngineChannel::DisconnectMidiInputPort() { |
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MidiInputPort* pOldPort = this->pMidiInputPort; |
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this->pMidiInputPort = NULL; |
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if (pOldPort) pOldPort->Disconnect(this); |
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} |
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MidiInputPort* EngineChannel::GetMidiInputPort() { |
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return pMidiInputPort; |
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} |
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midi_chan_t EngineChannel::MidiChannel() { |
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return midiChannel; |
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} |
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/** |
/** |
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* Will be called by the MIDIIn Thread to let the audio thread trigger a new |
* Will be called by the MIDIIn Thread to let the audio thread trigger a new |
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* voice for the given key. |
* voice for the given key. |
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event.Type = Event::type_note_on; |
event.Type = Event::type_note_on; |
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event.Param.Note.Key = Key; |
event.Param.Note.Key = Key; |
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event.Param.Note.Velocity = Velocity; |
event.Param.Note.Velocity = Velocity; |
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event.pEngineChannel = this; |
event.pEngineChannel = this; |
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if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
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else dmsg(1,("EngineChannel: Input event queue full!")); |
else dmsg(1,("EngineChannel: Input event queue full!")); |
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} |
} |
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* @param Pitch - MIDI pitch value (-8192 ... +8191) |
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
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*/ |
*/ |
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void EngineChannel::SendPitchbend(int Pitch) { |
void EngineChannel::SendPitchbend(int Pitch) { |
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if (pEngine) { |
if (pEngine) { |
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Event event = pEngine->pEventGenerator->CreateEvent(); |
Event event = pEngine->pEventGenerator->CreateEvent(); |
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event.Type = Event::type_pitchbend; |
event.Type = Event::type_pitchbend; |
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event.Param.Pitch.Pitch = Pitch; |
event.Param.Pitch.Pitch = Pitch; |
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} |
} |
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} |
} |
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void EngineChannel::ClearEventLists() { |
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pEvents->clear(); |
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// empty MIDI key specific event lists |
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{ |
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RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
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RTList<uint>::Iterator end = pActiveKeys->end(); |
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for(; iuiKey != end; ++iuiKey) { |
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pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
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} |
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} |
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} |
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void EngineChannel::ResetControllers() { |
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Pitch = 0; |
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SustainPedal = false; |
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SostenutoPedal = false; |
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GlobalVolume = CONFIG_GLOBAL_ATTENUATION; |
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GlobalPanLeft = 1.0f; |
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GlobalPanRight = 1.0f; |
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// set all MIDI controller values to zero |
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memset(ControllerTable, 0x00, 129); |
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} |
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/** |
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* Copy all events from the engine channel's input event queue buffer to |
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* the internal event list. This will be done at the beginning of each |
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* audio cycle (that is each RenderAudio() call) to distinguish all |
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* events which have to be processed in the current audio cycle. Each |
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* EngineChannel has it's own input event queue for the common channel |
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* specific events (like NoteOn, NoteOff and ControlChange events). |
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* Beside that, the engine also has a input event queue for global |
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* events (usually SysEx messages). |
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* |
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* @param Samples - number of sample points to be processed in the |
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* current audio cycle |
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*/ |
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void EngineChannel::ImportEvents(uint Samples) { |
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RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
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Event* pEvent; |
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while (true) { |
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// get next event from input event queue |
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if (!(pEvent = eventQueueReader.pop())) break; |
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// if younger event reached, ignore that and all subsequent ones for now |
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if (pEvent->FragmentPos() >= Samples) { |
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eventQueueReader--; |
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dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
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pEvent->ResetFragmentPos(); |
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break; |
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} |
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// copy event to internal event list |
479 |
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if (pEvents->poolIsEmpty()) { |
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dmsg(1,("Event pool emtpy!\n")); |
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break; |
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} |
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*pEvents->allocAppend() = *pEvent; |
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} |
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eventQueueReader.free(); // free all copied events from input queue |
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} |
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float EngineChannel::Volume() { |
float EngineChannel::Volume() { |
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return GlobalVolume; |
return GlobalVolume; |
490 |
} |
} |
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void EngineChannel::Volume(float f) { |
void EngineChannel::Volume(float f) { |
493 |
GlobalVolume = f; |
GlobalVolume = f; |
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bStatusChanged = true; // status of engine channel has changed, so set notify flag |
495 |
} |
} |
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uint EngineChannel::Channels() { |
uint EngineChannel::Channels() { |
512 |
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513 |
int EngineChannel::InstrumentStatus() { |
int EngineChannel::InstrumentStatus() { |
514 |
return InstrumentStat; |
return InstrumentStat; |
515 |
} |
} |
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517 |
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String EngineChannel::EngineName() { |
518 |
|
return LS_GIG_ENGINE_NAME; |
519 |
|
} |
520 |
|
|
521 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |