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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 - 2008 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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#include "../../common/global_private.h" |
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#include "../../Sampler.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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InstrumentChangeCommandReader(InstrumentChangeCommand), |
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virtualMidiDevicesReader_AudioThread(virtualMidiDevices), |
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virtualMidiDevicesReader_MidiThread(virtualMidiDevices) |
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{ |
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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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pEvents = NULL; // we allocate when we retrieve the right Engine object |
pEvents = NULL; // we allocate when we retrieve the right Engine object |
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pCCEvents = NULL; // we allocate when we retrieve the right Engine object |
pEventQueue = new RingBuffer<Event,false>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0); |
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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].VoiceTheftsQueued = 0; |
pMIDIKeyInfo[i].VoiceTheftsQueued = 0; |
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pMIDIKeyInfo[i].RoundRobinIndex = 0; |
pMIDIKeyInfo[i].RoundRobinIndex = 0; |
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} |
} |
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for (uint i = 0; i < Event::destination_count; i++) { |
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pSynthesisEvents[i] = NULL; // we allocate when we retrieve the right Engine object |
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} |
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InstrumentIdx = -1; |
InstrumentIdx = -1; |
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InstrumentStat = -1; |
InstrumentStat = -1; |
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pChannelLeft = NULL; |
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pChannelRight = NULL; |
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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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// reset the instrument change command struct (need to be done |
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// twice, as it is double buffered) |
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{ |
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instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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cmd.pDimRegionsInUse = NULL; |
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cmd.pInstrument = NULL; |
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cmd.bChangeInstrument = false; |
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} |
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{ |
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instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig(); |
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cmd.pDimRegionsInUse = NULL; |
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cmd.pInstrument = NULL; |
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cmd.bChangeInstrument = false; |
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} |
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} |
} |
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EngineChannel::~EngineChannel() { |
EngineChannel::~EngineChannel() { |
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DisconnectAudioOutputDevice(); |
DisconnectAudioOutputDevice(); |
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if (pInstrument) Engine::instruments.HandBack(pInstrument, this); |
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// In case the channel was removed before the instrument was |
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// fully loaded, try to give back instrument again (see bug #113) |
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instrument_change_command_t& cmd = ChangeInstrument(NULL); |
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if (cmd.pInstrument) { |
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Engine::instruments.HandBack(cmd.pInstrument, this); |
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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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RemoveAllFxSends(); |
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} |
} |
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/** |
/** |
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* check if some engine channel parameter has changed since the last |
* check if some engine channel parameter has changed since the last |
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* StatusChanged() call. |
* 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 |
* TODO: This "poll method" is just a lazy solution and might be |
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* replaced in future. |
* 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 |
* @returns true if engine channel status has changed since last |
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* StatusChanged() call |
* StatusChanged() call |
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*/ |
*/ |
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bool EngineChannel::StatusChanged() { |
bool EngineChannel::StatusChanged(bool bNewStatus) { |
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bool b = bStatusChanged; |
bool b = bStatusChanged; |
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bStatusChanged = false; |
bStatusChanged = bNewStatus; |
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return b; |
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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GlobalPanLeft = 1.0f; |
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GlobalPanRight = 1.0f; |
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CurrentKeyDimension = 0; |
CurrentKeyDimension = 0; |
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ResetControllers(); |
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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].itSelf = Pool<uint>::Iterator(); |
pMIDIKeyInfo[i].itSelf = Pool<uint>::Iterator(); |
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pMIDIKeyInfo[i].VoiceTheftsQueued = 0; |
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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* This method will then actually start to load the instrument and block |
* This method will then actually start to load the instrument and block |
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* the calling thread until loading was completed. |
* the calling thread until loading was completed. |
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* |
* |
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* @returns detailed description of the method call result |
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* @see PrepareLoadInstrument() |
* @see PrepareLoadInstrument() |
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*/ |
*/ |
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void EngineChannel::LoadInstrument() { |
void EngineChannel::LoadInstrument() { |
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// make sure we don't trigger any new notes with an old |
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if (pEngine) pEngine->DisableAndLock(); |
// instrument |
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instrument_change_command_t& cmd = ChangeInstrument(0); |
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ResetInternal(); |
if (cmd.pInstrument) { |
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// give old instrument back to instrument manager, but |
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// free old instrument |
// keep the dimension regions and samples that are in use |
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if (pInstrument) { |
Engine::instruments.HandBackInstrument(cmd.pInstrument, this, cmd.pDimRegionsInUse); |
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// give old instrument back to instrument manager |
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Engine::instruments.HandBack(pInstrument, this); |
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} |
} |
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cmd.pDimRegionsInUse->clear(); |
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// delete all key groups |
// delete all key groups |
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ActiveKeyGroups.clear(); |
ActiveKeyGroups.clear(); |
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// request gig instrument from instrument manager |
// request gig instrument from instrument manager |
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::gig::Instrument* newInstrument; |
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try { |
try { |
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instrument_id_t instrid; |
InstrumentManager::instrument_id_t instrid; |
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instrid.FileName = InstrumentFile; |
instrid.FileName = InstrumentFile; |
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instrid.iInstrument = InstrumentIdx; |
instrid.Index = InstrumentIdx; |
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pInstrument = Engine::instruments.Borrow(instrid, this); |
newInstrument = Engine::instruments.Borrow(instrid, this); |
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if (!pInstrument) { |
if (!newInstrument) { |
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InstrumentStat = -1; |
throw InstrumentManagerException("resource was not created"); |
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dmsg(1,("no instrument loaded!!!\n")); |
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exit(EXIT_FAILURE); |
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} |
} |
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} |
} |
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catch (RIFF::Exception e) { |
catch (RIFF::Exception e) { |
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InstrumentStat = -2; |
InstrumentStat = -2; |
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StatusChanged(true); |
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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 (InstrumentManagerException e) { |
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InstrumentStat = -3; |
InstrumentStat = -3; |
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StatusChanged(true); |
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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."); |
StatusChanged(true); |
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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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for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion()) |
for (::gig::Region* pRegion = newInstrument->GetFirstRegion(); pRegion; pRegion = newInstrument->GetNextRegion()) |
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if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL; |
if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL; |
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InstrumentIdxName = pInstrument->pInfo->Name; |
InstrumentIdxName = newInstrument->pInfo->Name; |
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InstrumentStat = 100; |
InstrumentStat = 100; |
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// inform audio driver for the need of two channels |
ChangeInstrument(newInstrument); |
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try { |
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if (pEngine && pEngine->pAudioOutputDevice) |
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pEngine->pAudioOutputDevice->AcquireChannels(2); // gig Engine only stereo |
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} |
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catch (AudioOutputException e) { |
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String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); |
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throw LinuxSamplerException(msg); |
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} |
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if (pEngine) pEngine->Enable(); |
StatusChanged(true); |
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} |
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/** |
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* Changes the instrument for an engine channel. |
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* |
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* @param pInstrument - new instrument |
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* @returns the resulting instrument change command after the |
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* command switch, containing the old instrument and |
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* the dimregions it is using |
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*/ |
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EngineChannel::instrument_change_command_t& EngineChannel::ChangeInstrument(::gig::Instrument* pInstrument) { |
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instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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cmd.pInstrument = pInstrument; |
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cmd.bChangeInstrument = true; |
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return InstrumentChangeCommand.SwitchConfig(); |
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} |
} |
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/** |
/** |
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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); |
pEvents = new RTList<Event>(pEngine->pEventPool); |
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pCCEvents = new RTList<Event>(pEngine->pEventPool); |
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for (uint i = 0; i < Event::destination_count; i++) { |
// reset the instrument change command struct (need to be done |
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pSynthesisEvents[i] = new RTList<Event>(pEngine->pEventPool); |
// twice, as it is double buffered) |
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{ |
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instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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cmd.pDimRegionsInUse = new RTList< ::gig::DimensionRegion*>(pEngine->pDimRegionPool[0]); |
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cmd.pInstrument = 0; |
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cmd.bChangeInstrument = false; |
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} |
} |
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{ |
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instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig(); |
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cmd.pDimRegionsInUse = new RTList< ::gig::DimensionRegion*>(pEngine->pDimRegionPool[1]); |
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cmd.pInstrument = 0; |
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cmd.bChangeInstrument = false; |
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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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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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} |
} |
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AudioDeviceChannelLeft = 0; |
AudioDeviceChannelLeft = 0; |
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AudioDeviceChannelRight = 1; |
AudioDeviceChannelRight = 1; |
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pOutputLeft = pAudioOut->Channel(0)->Buffer(); |
if (fxSends.empty()) { // render directly into the AudioDevice's output buffers |
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pOutputRight = pAudioOut->Channel(1)->Buffer(); |
pChannelLeft = pAudioOut->Channel(AudioDeviceChannelLeft); |
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pChannelRight = pAudioOut->Channel(AudioDeviceChannelRight); |
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} else { // use local buffers for rendering and copy later |
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// ensure the local buffers have the correct size |
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if (pChannelLeft) delete pChannelLeft; |
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if (pChannelRight) delete pChannelRight; |
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pChannelLeft = new AudioChannel(0, pAudioOut->MaxSamplesPerCycle()); |
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pChannelRight = new AudioChannel(1, pAudioOut->MaxSamplesPerCycle()); |
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} |
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if (pEngine->EngineDisabled.GetUnsafe()) pEngine->Enable(); |
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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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// delete the structures used for instrument change |
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RTList< ::gig::DimensionRegion*>* d = InstrumentChangeCommand.GetConfigForUpdate().pDimRegionsInUse; |
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if (d) delete d; |
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EngineChannel::instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig(); |
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d = cmd.pDimRegionsInUse; |
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if (cmd.pInstrument) { |
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// release the currently loaded instrument |
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Engine::instruments.HandBackInstrument(cmd.pInstrument, this, d); |
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} |
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if (d) delete d; |
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// release all active dimension regions to resource |
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// manager |
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RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
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RTList<uint>::Iterator end = pActiveKeys->end(); |
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while (iuiKey != end) { // iterate through all active keys |
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midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
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++iuiKey; |
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RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
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RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
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for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
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Engine::instruments.HandBackDimReg(itVoice->pDimRgn); |
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} |
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} |
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ResetInternal(); |
ResetInternal(); |
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if (pEvents) { |
if (pEvents) { |
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delete pEvents; |
delete pEvents; |
378 |
pEvents = NULL; |
pEvents = NULL; |
379 |
} |
} |
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if (pCCEvents) { |
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delete pCCEvents; |
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pCCEvents = NULL; |
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} |
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for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
381 |
if (pMIDIKeyInfo[i].pActiveVoices) { |
if (pMIDIKeyInfo[i].pActiveVoices) { |
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delete pMIDIKeyInfo[i].pActiveVoices; |
delete pMIDIKeyInfo[i].pActiveVoices; |
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pMIDIKeyInfo[i].pEvents = NULL; |
pMIDIKeyInfo[i].pEvents = NULL; |
388 |
} |
} |
389 |
} |
} |
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for (uint i = 0; i < Event::destination_count; i++) { |
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if (pSynthesisEvents[i]) { |
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delete pSynthesisEvents[i]; |
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pSynthesisEvents[i] = NULL; |
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} |
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} |
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390 |
Engine* oldEngine = pEngine; |
Engine* oldEngine = pEngine; |
391 |
AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice; |
AudioOutputDevice* oldAudioDevice = pEngine->pAudioOutputDevice; |
392 |
pEngine = NULL; |
pEngine = NULL; |
393 |
Engine::FreeEngine(this, oldAudioDevice); |
Engine::FreeEngine(this, oldAudioDevice); |
394 |
AudioDeviceChannelLeft = -1; |
AudioDeviceChannelLeft = -1; |
395 |
AudioDeviceChannelRight = -1; |
AudioDeviceChannelRight = -1; |
396 |
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if (!fxSends.empty()) { // free the local rendering buffers |
397 |
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if (pChannelLeft) delete pChannelLeft; |
398 |
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if (pChannelRight) delete pChannelRight; |
399 |
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} |
400 |
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pChannelLeft = NULL; |
401 |
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pChannelRight = NULL; |
402 |
} |
} |
403 |
} |
} |
404 |
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405 |
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AudioOutputDevice* EngineChannel::GetAudioOutputDevice() { |
406 |
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return (pEngine) ? pEngine->pAudioOutputDevice : NULL; |
407 |
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} |
408 |
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409 |
void EngineChannel::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) { |
void EngineChannel::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) { |
410 |
if (!pEngine || !pEngine->pAudioOutputDevice) throw AudioOutputException("No audio output device connected yet."); |
if (!pEngine || !pEngine->pAudioOutputDevice) throw AudioOutputException("No audio output device connected yet."); |
411 |
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413 |
if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel)); |
if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel)); |
414 |
switch (EngineAudioChannel) { |
switch (EngineAudioChannel) { |
415 |
case 0: // left output channel |
case 0: // left output channel |
416 |
pOutputLeft = pChannel->Buffer(); |
if (fxSends.empty()) pChannelLeft = pChannel; |
417 |
AudioDeviceChannelLeft = AudioDeviceChannel; |
AudioDeviceChannelLeft = AudioDeviceChannel; |
418 |
break; |
break; |
419 |
case 1: // right output channel |
case 1: // right output channel |
420 |
pOutputRight = pChannel->Buffer(); |
if (fxSends.empty()) pChannelRight = pChannel; |
421 |
AudioDeviceChannelRight = AudioDeviceChannel; |
AudioDeviceChannelRight = AudioDeviceChannel; |
422 |
break; |
break; |
423 |
default: |
default: |
424 |
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
425 |
} |
} |
426 |
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427 |
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bStatusChanged = true; |
428 |
} |
} |
429 |
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430 |
int EngineChannel::OutputChannel(uint EngineAudioChannel) { |
int EngineChannel::OutputChannel(uint EngineAudioChannel) { |
438 |
} |
} |
439 |
} |
} |
440 |
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441 |
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void EngineChannel::Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel) { |
442 |
|
if (!pMidiPort || pMidiPort == this->pMidiInputPort) return; |
443 |
|
DisconnectMidiInputPort(); |
444 |
|
this->pMidiInputPort = pMidiPort; |
445 |
|
this->midiChannel = MidiChannel; |
446 |
|
pMidiPort->Connect(this, MidiChannel); |
447 |
|
} |
448 |
|
|
449 |
|
void EngineChannel::DisconnectMidiInputPort() { |
450 |
|
MidiInputPort* pOldPort = this->pMidiInputPort; |
451 |
|
this->pMidiInputPort = NULL; |
452 |
|
if (pOldPort) pOldPort->Disconnect(this); |
453 |
|
} |
454 |
|
|
455 |
|
MidiInputPort* EngineChannel::GetMidiInputPort() { |
456 |
|
return pMidiInputPort; |
457 |
|
} |
458 |
|
|
459 |
|
midi_chan_t EngineChannel::MidiChannel() { |
460 |
|
return midiChannel; |
461 |
|
} |
462 |
|
|
463 |
|
FxSend* EngineChannel::AddFxSend(uint8_t MidiCtrl, String Name) throw (Exception) { |
464 |
|
if (pEngine) pEngine->DisableAndLock(); |
465 |
|
FxSend* pFxSend = new FxSend(this, MidiCtrl, Name); |
466 |
|
if (fxSends.empty()) { |
467 |
|
if (pEngine && pEngine->pAudioOutputDevice) { |
468 |
|
AudioOutputDevice* pDevice = pEngine->pAudioOutputDevice; |
469 |
|
// create local render buffers |
470 |
|
pChannelLeft = new AudioChannel(0, pDevice->MaxSamplesPerCycle()); |
471 |
|
pChannelRight = new AudioChannel(1, pDevice->MaxSamplesPerCycle()); |
472 |
|
} else { |
473 |
|
// postpone local render buffer creation until audio device is assigned |
474 |
|
pChannelLeft = NULL; |
475 |
|
pChannelRight = NULL; |
476 |
|
} |
477 |
|
} |
478 |
|
fxSends.push_back(pFxSend); |
479 |
|
if (pEngine) pEngine->Enable(); |
480 |
|
fireFxSendCountChanged(GetSamplerChannel()->Index(), GetFxSendCount()); |
481 |
|
|
482 |
|
return pFxSend; |
483 |
|
} |
484 |
|
|
485 |
|
FxSend* EngineChannel::GetFxSend(uint FxSendIndex) { |
486 |
|
return (FxSendIndex < fxSends.size()) ? fxSends[FxSendIndex] : NULL; |
487 |
|
} |
488 |
|
|
489 |
|
uint EngineChannel::GetFxSendCount() { |
490 |
|
return fxSends.size(); |
491 |
|
} |
492 |
|
|
493 |
|
void EngineChannel::RemoveFxSend(FxSend* pFxSend) { |
494 |
|
if (pEngine) pEngine->DisableAndLock(); |
495 |
|
for ( |
496 |
|
std::vector<FxSend*>::iterator iter = fxSends.begin(); |
497 |
|
iter != fxSends.end(); iter++ |
498 |
|
) { |
499 |
|
if (*iter == pFxSend) { |
500 |
|
delete pFxSend; |
501 |
|
fxSends.erase(iter); |
502 |
|
if (fxSends.empty()) { |
503 |
|
// destroy local render buffers |
504 |
|
if (pChannelLeft) delete pChannelLeft; |
505 |
|
if (pChannelRight) delete pChannelRight; |
506 |
|
// fallback to render directly into AudioOutputDevice's buffers |
507 |
|
if (pEngine && pEngine->pAudioOutputDevice) { |
508 |
|
pChannelLeft = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelLeft); |
509 |
|
pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight); |
510 |
|
} else { // we update the pointers later |
511 |
|
pChannelLeft = NULL; |
512 |
|
pChannelRight = NULL; |
513 |
|
} |
514 |
|
} |
515 |
|
break; |
516 |
|
} |
517 |
|
} |
518 |
|
if (pEngine) pEngine->Enable(); |
519 |
|
fireFxSendCountChanged(GetSamplerChannel()->Index(), GetFxSendCount()); |
520 |
|
} |
521 |
|
|
522 |
/** |
/** |
523 |
* 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 |
524 |
* voice for the given key. |
* voice for the given key. This method is meant for real time rendering, |
525 |
|
* that is an event will immediately be created with the current system |
526 |
|
* time as time stamp. |
527 |
* |
* |
528 |
* @param Key - MIDI key number of the triggered key |
* @param Key - MIDI key number of the triggered key |
529 |
* @param Velocity - MIDI velocity value of the triggered key |
* @param Velocity - MIDI velocity value of the triggered key |
537 |
event.pEngineChannel = this; |
event.pEngineChannel = this; |
538 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
539 |
else dmsg(1,("EngineChannel: Input event queue full!")); |
else dmsg(1,("EngineChannel: Input event queue full!")); |
540 |
|
// inform connected virtual MIDI devices if any ... |
541 |
|
// (e.g. virtual MIDI keyboard in instrument editor(s)) |
542 |
|
ArrayList<VirtualMidiDevice*>& devices = |
543 |
|
const_cast<ArrayList<VirtualMidiDevice*>&>( |
544 |
|
virtualMidiDevicesReader_MidiThread.Lock() |
545 |
|
); |
546 |
|
for (int i = 0; i < devices.size(); i++) { |
547 |
|
devices[i]->SendNoteOnToDevice(Key, Velocity); |
548 |
|
} |
549 |
|
virtualMidiDevicesReader_MidiThread.Unlock(); |
550 |
|
} |
551 |
|
} |
552 |
|
|
553 |
|
/** |
554 |
|
* Will be called by the MIDIIn Thread to let the audio thread trigger a new |
555 |
|
* voice for the given key. This method is meant for offline rendering |
556 |
|
* and / or for cases where the exact position of the event in the current |
557 |
|
* audio fragment is already known. |
558 |
|
* |
559 |
|
* @param Key - MIDI key number of the triggered key |
560 |
|
* @param Velocity - MIDI velocity value of the triggered key |
561 |
|
* @param FragmentPos - sample point position in the current audio |
562 |
|
* fragment to which this event belongs to |
563 |
|
*/ |
564 |
|
void EngineChannel::SendNoteOn(uint8_t Key, uint8_t Velocity, int32_t FragmentPos) { |
565 |
|
if (FragmentPos < 0) { |
566 |
|
dmsg(1,("EngineChannel::SendNoteOn(): negative FragmentPos! Seems MIDI driver is buggy!")); |
567 |
|
} |
568 |
|
else if (pEngine) { |
569 |
|
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
570 |
|
event.Type = Event::type_note_on; |
571 |
|
event.Param.Note.Key = Key; |
572 |
|
event.Param.Note.Velocity = Velocity; |
573 |
|
event.pEngineChannel = this; |
574 |
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
575 |
|
else dmsg(1,("EngineChannel: Input event queue full!")); |
576 |
|
// inform connected virtual MIDI devices if any ... |
577 |
|
// (e.g. virtual MIDI keyboard in instrument editor(s)) |
578 |
|
ArrayList<VirtualMidiDevice*>& devices = |
579 |
|
const_cast<ArrayList<VirtualMidiDevice*>&>( |
580 |
|
virtualMidiDevicesReader_MidiThread.Lock() |
581 |
|
); |
582 |
|
for (int i = 0; i < devices.size(); i++) { |
583 |
|
devices[i]->SendNoteOnToDevice(Key, Velocity); |
584 |
|
} |
585 |
|
virtualMidiDevicesReader_MidiThread.Unlock(); |
586 |
} |
} |
587 |
} |
} |
588 |
|
|
589 |
/** |
/** |
590 |
* Will be called by the MIDIIn Thread to signal the audio thread to release |
* Will be called by the MIDIIn Thread to signal the audio thread to release |
591 |
* voice(s) on the given key. |
* voice(s) on the given key. This method is meant for real time rendering, |
592 |
|
* that is an event will immediately be created with the current system |
593 |
|
* time as time stamp. |
594 |
* |
* |
595 |
* @param Key - MIDI key number of the released key |
* @param Key - MIDI key number of the released key |
596 |
* @param Velocity - MIDI release velocity value of the released key |
* @param Velocity - MIDI release velocity value of the released key |
604 |
event.pEngineChannel = this; |
event.pEngineChannel = this; |
605 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
606 |
else dmsg(1,("EngineChannel: Input event queue full!")); |
else dmsg(1,("EngineChannel: Input event queue full!")); |
607 |
|
// inform connected virtual MIDI devices if any ... |
608 |
|
// (e.g. virtual MIDI keyboard in instrument editor(s)) |
609 |
|
ArrayList<VirtualMidiDevice*>& devices = |
610 |
|
const_cast<ArrayList<VirtualMidiDevice*>&>( |
611 |
|
virtualMidiDevicesReader_MidiThread.Lock() |
612 |
|
); |
613 |
|
for (int i = 0; i < devices.size(); i++) { |
614 |
|
devices[i]->SendNoteOffToDevice(Key, Velocity); |
615 |
|
} |
616 |
|
virtualMidiDevicesReader_MidiThread.Unlock(); |
617 |
|
} |
618 |
|
} |
619 |
|
|
620 |
|
/** |
621 |
|
* Will be called by the MIDIIn Thread to signal the audio thread to release |
622 |
|
* voice(s) on the given key. This method is meant for offline rendering |
623 |
|
* and / or for cases where the exact position of the event in the current |
624 |
|
* audio fragment is already known. |
625 |
|
* |
626 |
|
* @param Key - MIDI key number of the released key |
627 |
|
* @param Velocity - MIDI release velocity value of the released key |
628 |
|
* @param FragmentPos - sample point position in the current audio |
629 |
|
* fragment to which this event belongs to |
630 |
|
*/ |
631 |
|
void EngineChannel::SendNoteOff(uint8_t Key, uint8_t Velocity, int32_t FragmentPos) { |
632 |
|
if (FragmentPos < 0) { |
633 |
|
dmsg(1,("EngineChannel::SendNoteOff(): negative FragmentPos! Seems MIDI driver is buggy!")); |
634 |
|
} |
635 |
|
else if (pEngine) { |
636 |
|
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
637 |
|
event.Type = Event::type_note_off; |
638 |
|
event.Param.Note.Key = Key; |
639 |
|
event.Param.Note.Velocity = Velocity; |
640 |
|
event.pEngineChannel = this; |
641 |
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
642 |
|
else dmsg(1,("EngineChannel: Input event queue full!")); |
643 |
|
// inform connected virtual MIDI devices if any ... |
644 |
|
// (e.g. virtual MIDI keyboard in instrument editor(s)) |
645 |
|
ArrayList<VirtualMidiDevice*>& devices = |
646 |
|
const_cast<ArrayList<VirtualMidiDevice*>&>( |
647 |
|
virtualMidiDevicesReader_MidiThread.Lock() |
648 |
|
); |
649 |
|
for (int i = 0; i < devices.size(); i++) { |
650 |
|
devices[i]->SendNoteOffToDevice(Key, Velocity); |
651 |
|
} |
652 |
|
virtualMidiDevicesReader_MidiThread.Unlock(); |
653 |
} |
} |
654 |
} |
} |
655 |
|
|
656 |
/** |
/** |
657 |
* Will be called by the MIDIIn Thread to signal the audio thread to change |
* Will be called by the MIDIIn Thread to signal the audio thread to change |
658 |
* the pitch value for all voices. |
* the pitch value for all voices. This method is meant for real time |
659 |
|
* rendering, that is an event will immediately be created with the |
660 |
|
* current system time as time stamp. |
661 |
* |
* |
662 |
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
663 |
*/ |
*/ |
673 |
} |
} |
674 |
|
|
675 |
/** |
/** |
676 |
|
* Will be called by the MIDIIn Thread to signal the audio thread to change |
677 |
|
* the pitch value for all voices. This method is meant for offline |
678 |
|
* rendering and / or for cases where the exact position of the event in |
679 |
|
* the current audio fragment is already known. |
680 |
|
* |
681 |
|
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
682 |
|
* @param FragmentPos - sample point position in the current audio |
683 |
|
* fragment to which this event belongs to |
684 |
|
*/ |
685 |
|
void EngineChannel::SendPitchbend(int Pitch, int32_t FragmentPos) { |
686 |
|
if (FragmentPos < 0) { |
687 |
|
dmsg(1,("EngineChannel::SendPitchBend(): negative FragmentPos! Seems MIDI driver is buggy!")); |
688 |
|
} |
689 |
|
else if (pEngine) { |
690 |
|
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
691 |
|
event.Type = Event::type_pitchbend; |
692 |
|
event.Param.Pitch.Pitch = Pitch; |
693 |
|
event.pEngineChannel = this; |
694 |
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
695 |
|
else dmsg(1,("EngineChannel: Input event queue full!")); |
696 |
|
} |
697 |
|
} |
698 |
|
|
699 |
|
/** |
700 |
* Will be called by the MIDIIn Thread to signal the audio thread that a |
* Will be called by the MIDIIn Thread to signal the audio thread that a |
701 |
* continuous controller value has changed. |
* continuous controller value has changed. This method is meant for real |
702 |
|
* time rendering, that is an event will immediately be created with the |
703 |
|
* current system time as time stamp. |
704 |
* |
* |
705 |
* @param Controller - MIDI controller number of the occured control change |
* @param Controller - MIDI controller number of the occured control change |
706 |
* @param Value - value of the control change |
* @param Value - value of the control change |
717 |
} |
} |
718 |
} |
} |
719 |
|
|
720 |
|
/** |
721 |
|
* Will be called by the MIDIIn Thread to signal the audio thread that a |
722 |
|
* continuous controller value has changed. This method is meant for |
723 |
|
* offline rendering and / or for cases where the exact position of the |
724 |
|
* event in the current audio fragment is already known. |
725 |
|
* |
726 |
|
* @param Controller - MIDI controller number of the occured control change |
727 |
|
* @param Value - value of the control change |
728 |
|
* @param FragmentPos - sample point position in the current audio |
729 |
|
* fragment to which this event belongs to |
730 |
|
*/ |
731 |
|
void EngineChannel::SendControlChange(uint8_t Controller, uint8_t Value, int32_t FragmentPos) { |
732 |
|
if (FragmentPos < 0) { |
733 |
|
dmsg(1,("EngineChannel::SendControlChange(): negative FragmentPos! Seems MIDI driver is buggy!")); |
734 |
|
} |
735 |
|
else if (pEngine) { |
736 |
|
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
737 |
|
event.Type = Event::type_control_change; |
738 |
|
event.Param.CC.Controller = Controller; |
739 |
|
event.Param.CC.Value = Value; |
740 |
|
event.pEngineChannel = this; |
741 |
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
742 |
|
else dmsg(1,("EngineChannel: Input event queue full!")); |
743 |
|
} |
744 |
|
} |
745 |
|
|
746 |
void EngineChannel::ClearEventLists() { |
void EngineChannel::ClearEventLists() { |
747 |
pEvents->clear(); |
pEvents->clear(); |
|
pCCEvents->clear(); |
|
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
pSynthesisEvents[i]->clear(); |
|
|
} |
|
748 |
// empty MIDI key specific event lists |
// empty MIDI key specific event lists |
749 |
{ |
{ |
750 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
756 |
} |
} |
757 |
|
|
758 |
void EngineChannel::ResetControllers() { |
void EngineChannel::ResetControllers() { |
759 |
|
Pitch = 0; |
760 |
|
SustainPedal = false; |
761 |
|
SostenutoPedal = false; |
762 |
|
GlobalVolume = 1.0f; |
763 |
|
MidiVolume = 1.0; |
764 |
|
GlobalPanLeft = 1.0f; |
765 |
|
GlobalPanRight = 1.0f; |
766 |
|
iLastPanRequest = 64; |
767 |
|
GlobalTranspose = 0; |
768 |
// set all MIDI controller values to zero |
// set all MIDI controller values to zero |
769 |
memset(ControllerTable, 0x00, 128); |
memset(ControllerTable, 0x00, 129); |
770 |
|
// reset all FX Send levels |
771 |
|
for ( |
772 |
|
std::vector<FxSend*>::iterator iter = fxSends.begin(); |
773 |
|
iter != fxSends.end(); iter++ |
774 |
|
) { |
775 |
|
(*iter)->Reset(); |
776 |
|
} |
777 |
} |
} |
778 |
|
|
779 |
/** |
/** |
790 |
* current audio cycle |
* current audio cycle |
791 |
*/ |
*/ |
792 |
void EngineChannel::ImportEvents(uint Samples) { |
void EngineChannel::ImportEvents(uint Samples) { |
793 |
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
// import events from pure software MIDI "devices" |
794 |
|
// (e.g. virtual keyboard in instrument editor) |
795 |
|
{ |
796 |
|
const int FragmentPos = 0; // randomly chosen, we don't care about jitter for virtual MIDI devices |
797 |
|
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
798 |
|
VirtualMidiDevice::event_t devEvent; // the event format we get from the virtual MIDI device |
799 |
|
// as we're going to (carefully) write some status to the |
800 |
|
// synchronized struct, we cast away the const |
801 |
|
ArrayList<VirtualMidiDevice*>& devices = |
802 |
|
const_cast<ArrayList<VirtualMidiDevice*>&>(virtualMidiDevicesReader_AudioThread.Lock()); |
803 |
|
// iterate through all virtual MIDI devices |
804 |
|
for (int i = 0; i < devices.size(); i++) { |
805 |
|
VirtualMidiDevice* pDev = devices[i]; |
806 |
|
// I think we can simply flush the whole FIFO(s), the user shouldn't be so fast ;-) |
807 |
|
while (pDev->GetMidiEventFromDevice(devEvent)) { |
808 |
|
event.Type = |
809 |
|
(devEvent.Type == VirtualMidiDevice::EVENT_TYPE_NOTEON) ? |
810 |
|
Event::type_note_on : Event::type_note_off; |
811 |
|
event.Param.Note.Key = devEvent.Key; |
812 |
|
event.Param.Note.Velocity = devEvent.Velocity; |
813 |
|
event.pEngineChannel = this; |
814 |
|
// copy event to internal event list |
815 |
|
if (pEvents->poolIsEmpty()) { |
816 |
|
dmsg(1,("Event pool emtpy!\n")); |
817 |
|
goto exitVirtualDevicesLoop; |
818 |
|
} |
819 |
|
*pEvents->allocAppend() = event; |
820 |
|
} |
821 |
|
} |
822 |
|
} |
823 |
|
exitVirtualDevicesLoop: |
824 |
|
virtualMidiDevicesReader_AudioThread.Unlock(); |
825 |
|
|
826 |
|
// import events from the regular MIDI devices |
827 |
|
RingBuffer<Event,false>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
828 |
Event* pEvent; |
Event* pEvent; |
829 |
while (true) { |
while (true) { |
830 |
// get next event from input event queue |
// get next event from input event queue |
846 |
eventQueueReader.free(); // free all copied events from input queue |
eventQueueReader.free(); // free all copied events from input queue |
847 |
} |
} |
848 |
|
|
849 |
|
void EngineChannel::RemoveAllFxSends() { |
850 |
|
if (pEngine) pEngine->DisableAndLock(); |
851 |
|
if (!fxSends.empty()) { // free local render buffers |
852 |
|
if (pChannelLeft) { |
853 |
|
delete pChannelLeft; |
854 |
|
if (pEngine && pEngine->pAudioOutputDevice) { |
855 |
|
// fallback to render directly to the AudioOutputDevice's buffer |
856 |
|
pChannelLeft = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelLeft); |
857 |
|
} else pChannelLeft = NULL; |
858 |
|
} |
859 |
|
if (pChannelRight) { |
860 |
|
delete pChannelRight; |
861 |
|
if (pEngine && pEngine->pAudioOutputDevice) { |
862 |
|
// fallback to render directly to the AudioOutputDevice's buffer |
863 |
|
pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight); |
864 |
|
} else pChannelRight = NULL; |
865 |
|
} |
866 |
|
} |
867 |
|
for (int i = 0; i < fxSends.size(); i++) delete fxSends[i]; |
868 |
|
fxSends.clear(); |
869 |
|
if (pEngine) pEngine->Enable(); |
870 |
|
} |
871 |
|
|
872 |
|
void EngineChannel::Connect(VirtualMidiDevice* pDevice) { |
873 |
|
// double buffer ... double work ... |
874 |
|
{ |
875 |
|
ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.GetConfigForUpdate(); |
876 |
|
devices.add(pDevice); |
877 |
|
} |
878 |
|
{ |
879 |
|
ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.SwitchConfig(); |
880 |
|
devices.add(pDevice); |
881 |
|
} |
882 |
|
} |
883 |
|
|
884 |
|
void EngineChannel::Disconnect(VirtualMidiDevice* pDevice) { |
885 |
|
// double buffer ... double work ... |
886 |
|
{ |
887 |
|
ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.GetConfigForUpdate(); |
888 |
|
devices.remove(pDevice); |
889 |
|
} |
890 |
|
{ |
891 |
|
ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.SwitchConfig(); |
892 |
|
devices.remove(pDevice); |
893 |
|
} |
894 |
|
} |
895 |
|
|
896 |
float EngineChannel::Volume() { |
float EngineChannel::Volume() { |
897 |
return GlobalVolume; |
return GlobalVolume; |
898 |
} |
} |
902 |
bStatusChanged = true; // status of engine channel has changed, so set notify flag |
bStatusChanged = true; // status of engine channel has changed, so set notify flag |
903 |
} |
} |
904 |
|
|
905 |
|
float EngineChannel::Pan() { |
906 |
|
return float(iLastPanRequest - 64) / 64.0f; |
907 |
|
} |
908 |
|
|
909 |
|
void EngineChannel::Pan(float f) { |
910 |
|
int iMidiPan = int(f * 64.0f) + 64; |
911 |
|
if (iMidiPan > 127) iMidiPan = 127; |
912 |
|
else if (iMidiPan < 0) iMidiPan = 0; |
913 |
|
GlobalPanLeft = Engine::PanCurve[128 - iMidiPan]; |
914 |
|
GlobalPanRight = Engine::PanCurve[iMidiPan]; |
915 |
|
iLastPanRequest = iMidiPan; |
916 |
|
} |
917 |
|
|
918 |
uint EngineChannel::Channels() { |
uint EngineChannel::Channels() { |
919 |
return 2; |
return 2; |
920 |
} |
} |
939 |
return LS_GIG_ENGINE_NAME; |
return LS_GIG_ENGINE_NAME; |
940 |
} |
} |
941 |
|
|
942 |
|
void EngineChannel::ClearDimRegionsInUse() { |
943 |
|
{ |
944 |
|
instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
945 |
|
if(cmd.pDimRegionsInUse != NULL) cmd.pDimRegionsInUse->clear(); |
946 |
|
} |
947 |
|
{ |
948 |
|
instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig(); |
949 |
|
if(cmd.pDimRegionsInUse != NULL) cmd.pDimRegionsInUse->clear(); |
950 |
|
} |
951 |
|
} |
952 |
|
|
953 |
|
void EngineChannel::ResetDimRegionsInUse() { |
954 |
|
{ |
955 |
|
instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
956 |
|
if(cmd.pDimRegionsInUse != NULL) { |
957 |
|
delete cmd.pDimRegionsInUse; |
958 |
|
cmd.pDimRegionsInUse = new RTList< ::gig::DimensionRegion*>(pEngine->pDimRegionPool[0]); |
959 |
|
} |
960 |
|
} |
961 |
|
{ |
962 |
|
instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig(); |
963 |
|
if(cmd.pDimRegionsInUse != NULL) { |
964 |
|
delete cmd.pDimRegionsInUse; |
965 |
|
cmd.pDimRegionsInUse = new RTList< ::gig::DimensionRegion*>(pEngine->pDimRegionPool[1]); |
966 |
|
} |
967 |
|
} |
968 |
|
} |
969 |
|
|
970 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |