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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, 2006 Christian Schoenebeck * |
* Copyright (C) 2005 - 2007 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 * |
30 |
pEngine = NULL; |
pEngine = NULL; |
31 |
pInstrument = NULL; |
pInstrument = NULL; |
32 |
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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pEventQueue = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0); |
pEventQueue = new RingBuffer<Event,false>(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++) { |
36 |
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 |
43 |
} |
} |
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InstrumentIdx = -1; |
InstrumentIdx = -1; |
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InstrumentStat = -1; |
InstrumentStat = -1; |
46 |
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pChannelLeft = NULL; |
47 |
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pChannelRight = NULL; |
48 |
AudioDeviceChannelLeft = -1; |
AudioDeviceChannelLeft = -1; |
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AudioDeviceChannelRight = -1; |
AudioDeviceChannelRight = -1; |
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pMidiInputPort = NULL; |
pMidiInputPort = NULL; |
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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; |
64 |
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RemoveAllFxSends(); |
65 |
} |
} |
66 |
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|
67 |
/** |
/** |
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* @see PrepareLoadInstrument() |
* @see PrepareLoadInstrument() |
164 |
*/ |
*/ |
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void EngineChannel::LoadInstrument() { |
void EngineChannel::LoadInstrument() { |
166 |
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::gig::Instrument* oldInstrument = pInstrument; |
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if (pEngine) pEngine->DisableAndLock(); |
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ResetInternal(); |
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// free old instrument |
// free old instrument |
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if (pInstrument) { |
if (oldInstrument) { |
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// give old instrument back to instrument manager |
if (pEngine) { |
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Engine::instruments.HandBack(pInstrument, this); |
// make sure we don't trigger any new notes with the |
172 |
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// old instrument |
173 |
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::gig::DimensionRegion** dimRegionsInUse = pEngine->ChangeInstrument(this, 0); |
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175 |
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// give old instrument back to instrument manager, but |
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// keep the dimension regions and samples that are in |
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// use |
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Engine::instruments.HandBackInstrument(oldInstrument, this, dimRegionsInUse); |
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} else { |
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Engine::instruments.HandBack(oldInstrument, this); |
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} |
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} |
} |
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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 InstrumentResourceManagerException("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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} |
} |
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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 |
if (pEngine) pEngine->ChangeInstrument(this, newInstrument); |
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try { |
else pInstrument = newInstrument; |
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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 Exception(msg); |
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} |
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if (pEngine) pEngine->Enable(); |
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} |
} |
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/** |
/** |
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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 |
276 |
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// ensure the local buffers have the correct size |
277 |
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if (pChannelLeft) delete pChannelLeft; |
278 |
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if (pChannelRight) delete pChannelRight; |
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pChannelLeft = new AudioChannel(0, pAudioOut->MaxSamplesPerCycle()); |
280 |
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pChannelRight = new AudioChannel(1, pAudioOut->MaxSamplesPerCycle()); |
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} |
282 |
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if (pEngine->EngineDisabled.GetUnsafe()) pEngine->Enable(); |
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MidiInputPort::AddSysexListener(pEngine); |
MidiInputPort::AddSysexListener(pEngine); |
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} |
} |
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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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if (!fxSends.empty()) { // free the local rendering buffers |
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if (pChannelLeft) delete pChannelLeft; |
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if (pChannelRight) delete pChannelRight; |
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} |
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pChannelLeft = NULL; |
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pChannelRight = NULL; |
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} |
} |
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} |
} |
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AudioOutputDevice* EngineChannel::GetAudioOutputDevice() { |
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return (pEngine) ? pEngine->pAudioOutputDevice : NULL; |
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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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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) { |
328 |
case 0: // left output channel |
case 0: // left output channel |
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pOutputLeft = pChannel->Buffer(); |
if (fxSends.empty()) pChannelLeft = pChannel; |
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AudioDeviceChannelLeft = AudioDeviceChannel; |
AudioDeviceChannelLeft = AudioDeviceChannel; |
331 |
break; |
break; |
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case 1: // right output channel |
case 1: // right output channel |
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pOutputRight = pChannel->Buffer(); |
if (fxSends.empty()) pChannelRight = pChannel; |
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AudioDeviceChannelRight = AudioDeviceChannel; |
AudioDeviceChannelRight = AudioDeviceChannel; |
335 |
break; |
break; |
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default: |
default: |
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return midiChannel; |
return midiChannel; |
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} |
} |
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FxSend* EngineChannel::AddFxSend(uint8_t MidiCtrl, String Name) throw (Exception) { |
375 |
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if (pEngine) pEngine->DisableAndLock(); |
376 |
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FxSend* pFxSend = new FxSend(this, MidiCtrl, Name); |
377 |
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if (fxSends.empty()) { |
378 |
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if (pEngine && pEngine->pAudioOutputDevice) { |
379 |
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AudioOutputDevice* pDevice = pEngine->pAudioOutputDevice; |
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// create local render buffers |
381 |
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pChannelLeft = new AudioChannel(0, pDevice->MaxSamplesPerCycle()); |
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pChannelRight = new AudioChannel(1, pDevice->MaxSamplesPerCycle()); |
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} else { |
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// postpone local render buffer creation until audio device is assigned |
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pChannelLeft = NULL; |
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pChannelRight = NULL; |
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} |
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} |
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fxSends.push_back(pFxSend); |
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if (pEngine) pEngine->Enable(); |
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return pFxSend; |
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} |
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FxSend* EngineChannel::GetFxSend(uint FxSendIndex) { |
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return (FxSendIndex < fxSends.size()) ? fxSends[FxSendIndex] : NULL; |
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} |
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398 |
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uint EngineChannel::GetFxSendCount() { |
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return fxSends.size(); |
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} |
401 |
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402 |
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void EngineChannel::RemoveFxSend(FxSend* pFxSend) { |
403 |
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if (pEngine) pEngine->DisableAndLock(); |
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for ( |
405 |
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std::vector<FxSend*>::iterator iter = fxSends.begin(); |
406 |
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iter != fxSends.end(); iter++ |
407 |
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) { |
408 |
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if (*iter == pFxSend) { |
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delete pFxSend; |
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fxSends.erase(iter); |
411 |
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if (fxSends.empty()) { |
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// destroy local render buffers |
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if (pChannelLeft) delete pChannelLeft; |
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if (pChannelRight) delete pChannelRight; |
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// fallback to render directly into AudioOutputDevice's buffers |
416 |
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if (pEngine && pEngine->pAudioOutputDevice) { |
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pChannelLeft = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelLeft); |
418 |
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pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight); |
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} else { // we update the pointers later |
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pChannelLeft = NULL; |
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pChannelRight = NULL; |
422 |
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} |
423 |
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} |
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break; |
425 |
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} |
426 |
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} |
427 |
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if (pEngine) pEngine->Enable(); |
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} |
429 |
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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. This method is meant for real time rendering, |
* voice for the given key. This method is meant for real time rendering, |
627 |
Pitch = 0; |
Pitch = 0; |
628 |
SustainPedal = false; |
SustainPedal = false; |
629 |
SostenutoPedal = false; |
SostenutoPedal = false; |
630 |
GlobalVolume = CONFIG_GLOBAL_ATTENUATION; |
GlobalVolume = 1.0f; |
631 |
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MidiVolume = 1.0; |
632 |
GlobalPanLeft = 1.0f; |
GlobalPanLeft = 1.0f; |
633 |
GlobalPanRight = 1.0f; |
GlobalPanRight = 1.0f; |
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// set all MIDI controller values to zero |
// set all MIDI controller values to zero |
635 |
memset(ControllerTable, 0x00, 129); |
memset(ControllerTable, 0x00, 129); |
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// reset all FX Send levels |
637 |
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for ( |
638 |
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std::vector<FxSend*>::iterator iter = fxSends.begin(); |
639 |
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iter != fxSends.end(); iter++ |
640 |
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) { |
641 |
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(*iter)->Reset(); |
642 |
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} |
643 |
} |
} |
644 |
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/** |
/** |
656 |
* current audio cycle |
* current audio cycle |
657 |
*/ |
*/ |
658 |
void EngineChannel::ImportEvents(uint Samples) { |
void EngineChannel::ImportEvents(uint Samples) { |
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RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
RingBuffer<Event,false>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
660 |
Event* pEvent; |
Event* pEvent; |
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while (true) { |
while (true) { |
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// get next event from input event queue |
// get next event from input event queue |
678 |
eventQueueReader.free(); // free all copied events from input queue |
eventQueueReader.free(); // free all copied events from input queue |
679 |
} |
} |
680 |
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681 |
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void EngineChannel::RemoveAllFxSends() { |
682 |
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if (pEngine) pEngine->DisableAndLock(); |
683 |
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if (!fxSends.empty()) { // free local render buffers |
684 |
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if (pChannelLeft) { |
685 |
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delete pChannelLeft; |
686 |
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if (pEngine && pEngine->pAudioOutputDevice) { |
687 |
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// fallback to render directly to the AudioOutputDevice's buffer |
688 |
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pChannelLeft = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelLeft); |
689 |
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} else pChannelLeft = NULL; |
690 |
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} |
691 |
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if (pChannelRight) { |
692 |
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delete pChannelRight; |
693 |
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if (pEngine && pEngine->pAudioOutputDevice) { |
694 |
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// fallback to render directly to the AudioOutputDevice's buffer |
695 |
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pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight); |
696 |
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} else pChannelRight = NULL; |
697 |
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} |
698 |
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} |
699 |
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for (int i = 0; i < fxSends.size(); i++) delete fxSends[i]; |
700 |
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fxSends.clear(); |
701 |
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if (pEngine) pEngine->Enable(); |
702 |
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} |
703 |
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704 |
float EngineChannel::Volume() { |
float EngineChannel::Volume() { |
705 |
return GlobalVolume; |
return GlobalVolume; |
706 |
} |
} |