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* * |
* * |
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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) 2005-2008 Christian Schoenebeck * |
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* Copyright (C) 2009-2010 Christian Schoenebeck and Grigor Iliev * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
22 |
* MA 02111-1307 USA * |
* MA 02111-1307 USA * |
23 |
***************************************************************************/ |
***************************************************************************/ |
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#include <sstream> |
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#include "DiskThread.h" |
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#include "Voice.h" |
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#include "Engine.h" |
#include "Engine.h" |
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#include "EngineChannel.h" |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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Engine::Format Engine::GetEngineFormat() { return GIG; } |
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InstrumentResourceManager Engine::Instruments; |
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Engine::Engine() { |
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pRIFF = NULL; |
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pGig = NULL; |
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pInstrument = NULL; |
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pAudioOutputDevice = NULL; |
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pDiskThread = NULL; |
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pEventGenerator = NULL; |
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pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT); |
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pEventPool = new RTELMemoryPool<Event>(MAX_EVENTS_PER_FRAGMENT); |
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pVoicePool = new RTELMemoryPool<Voice>(MAX_AUDIO_VOICES); |
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pActiveKeys = new RTELMemoryPool<uint>(128); |
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pEvents = new RTEList<Event>(pEventPool); |
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pCCEvents = new RTEList<Event>(pEventPool); |
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for (uint i = 0; i < Event::destination_count; i++) { |
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pSynthesisEvents[i] = new RTEList<Event>(pEventPool); |
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} |
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for (uint i = 0; i < 128; i++) { |
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pMIDIKeyInfo[i].pActiveVoices = new RTEList<Voice>(pVoicePool); |
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pMIDIKeyInfo[i].KeyPressed = false; |
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pMIDIKeyInfo[i].Active = false; |
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pMIDIKeyInfo[i].pSelf = NULL; |
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pMIDIKeyInfo[i].pEvents = new RTEList<Event>(pEventPool); |
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} |
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for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
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pVoice->SetEngine(this); |
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} |
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pVoicePool->clear(); |
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pSynthesisParameters[0] = NULL; // we allocate when an audio device is connected |
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ResetInternal(); |
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} |
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Engine::~Engine() { |
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if (pDiskThread) { |
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pDiskThread->StopThread(); |
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delete pDiskThread; |
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} |
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if (pGig) delete pGig; |
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if (pRIFF) delete pRIFF; |
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for (uint i = 0; i < 128; i++) { |
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if (pMIDIKeyInfo[i].pActiveVoices) delete pMIDIKeyInfo[i].pActiveVoices; |
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if (pMIDIKeyInfo[i].pEvents) delete pMIDIKeyInfo[i].pEvents; |
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} |
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for (uint i = 0; i < Event::destination_count; i++) { |
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if (pSynthesisEvents[i]) delete pSynthesisEvents[i]; |
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} |
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delete[] pSynthesisEvents; |
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if (pEvents) delete pEvents; |
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if (pCCEvents) delete pCCEvents; |
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if (pEventQueue) delete pEventQueue; |
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if (pEventPool) delete pEventPool; |
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if (pVoicePool) delete pVoicePool; |
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if (pActiveKeys) delete pActiveKeys; |
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if (pEventGenerator) delete pEventGenerator; |
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if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0]; |
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} |
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void Engine::Enable() { |
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dmsg(3,("gig::Engine: enabling\n")); |
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EngineDisabled.PushAndUnlock(false, 2); // set condition object 'EngineDisabled' to false (wait max. 2s) |
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dmsg(3,("gig::Engine: enabled (val=%d)\n", EngineDisabled.GetUnsafe())); |
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} |
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void Engine::Disable() { |
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dmsg(3,("gig::Engine: disabling\n")); |
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bool* pWasDisabled = EngineDisabled.PushAndUnlock(true, 2); // wait max. 2s |
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if (!pWasDisabled) dmsg(3,("gig::Engine warning: Timeout waiting to disable engine.\n")); |
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} |
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void Engine::DisableAndLock() { |
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dmsg(3,("gig::Engine: disabling\n")); |
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bool* pWasDisabled = EngineDisabled.Push(true, 2); // wait max. 2s |
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if (!pWasDisabled) dmsg(3,("gig::Engine warning: Timeout waiting to disable engine.\n")); |
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} |
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/** |
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* Reset all voices and disk thread and clear input event queue and all |
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* control and status variables. |
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*/ |
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void Engine::Reset() { |
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DisableAndLock(); |
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//if (pAudioOutputDevice->IsPlaying()) { // if already running |
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/* |
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// signal audio thread not to enter render part anymore |
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SuspensionRequested = true; |
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// sleep until wakened by audio thread |
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pthread_mutex_lock(&__render_state_mutex); |
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pthread_cond_wait(&__render_exit_condition, &__render_state_mutex); |
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pthread_mutex_unlock(&__render_state_mutex); |
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*/ |
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//} |
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//if (wasplaying) pAudioOutputDevice->Stop(); |
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ResetInternal(); |
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// signal audio thread to continue with rendering |
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//SuspensionRequested = false; |
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Enable(); |
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} |
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/** |
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* Reset all voices and disk thread and clear input event queue and all |
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* control and status variables. This method is not thread safe! |
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*/ |
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void Engine::ResetInternal() { |
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Pitch = 0; |
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SustainPedal = false; |
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ActiveVoiceCount = 0; |
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ActiveVoiceCountMax = 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 key info |
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for (uint i = 0; i < 128; i++) { |
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pMIDIKeyInfo[i].pActiveVoices->clear(); |
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pMIDIKeyInfo[i].pEvents->clear(); |
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pMIDIKeyInfo[i].KeyPressed = false; |
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pMIDIKeyInfo[i].Active = false; |
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pMIDIKeyInfo[i].pSelf = NULL; |
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} |
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// reset all voices |
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for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
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pVoice->Reset(); |
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} |
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pVoicePool->clear(); |
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// free all active keys |
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pActiveKeys->clear(); |
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// reset disk thread |
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if (pDiskThread) pDiskThread->Reset(); |
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// delete all input events |
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pEventQueue->init(); |
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} |
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/** |
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* Load an instrument from a .gig file. |
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* |
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* @param FileName - file name of the Gigasampler instrument file |
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* @param Instrument - index of the instrument in the .gig file |
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* @throws LinuxSamplerException on error |
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* @returns detailed description of the method call result |
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*/ |
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void Engine::LoadInstrument(const char* FileName, uint Instrument) { |
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DisableAndLock(); |
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ResetInternal(); // reset engine |
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// free old instrument |
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if (pInstrument) { |
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// give old instrument back to instrument manager |
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Instruments.HandBack(pInstrument, this); |
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} |
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// request gig instrument from instrument manager |
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try { |
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instrument_id_t instrid; |
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instrid.FileName = FileName; |
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instrid.iInstrument = Instrument; |
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pInstrument = Instruments.Borrow(instrid, this); |
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if (!pInstrument) { |
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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) { |
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String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message; |
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throw LinuxSamplerException(msg); |
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} |
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catch (InstrumentResourceManagerException e) { |
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String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message(); |
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throw LinuxSamplerException(msg); |
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} |
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catch (...) { |
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throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file."); |
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} |
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// inform audio driver for the need of two channels |
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try { |
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if (pAudioOutputDevice) 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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Enable(); |
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} |
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/** |
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* 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 |
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* can stop playback before that happens. |
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*/ |
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void Engine::ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg) { |
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dmsg(3,("gig::Engine: Received instrument update message.\n")); |
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DisableAndLock(); |
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ResetInternal(); |
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this->pInstrument = NULL; |
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} |
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/** |
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* Will be called by the InstrumentResourceManager when the instrument |
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* update process was completed, so we can continue with playback. |
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*/ |
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void Engine::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) { |
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this->pInstrument = pNewResource; |
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Enable(); |
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} |
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void Engine::Connect(AudioOutputDevice* pAudioOut) { |
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pAudioOutputDevice = pAudioOut; |
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ResetInternal(); |
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// inform audio driver for the need of two channels |
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try { |
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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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// (re)create disk thread |
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if (this->pDiskThread) { |
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this->pDiskThread->StopThread(); |
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delete this->pDiskThread; |
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} |
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this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
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if (!pDiskThread) { |
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dmsg(0,("gig::Engine new diskthread = NULL\n")); |
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exit(EXIT_FAILURE); |
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} |
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for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) { |
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pVoice->pDiskThread = this->pDiskThread; |
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pVoice->SetOutput(pAudioOut); |
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dmsg(3,("d")); |
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} |
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pVoicePool->clear(); |
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// (re)create event generator |
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if (pEventGenerator) delete pEventGenerator; |
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pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); |
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// (re)allocate synthesis parameter matrix |
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if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0]; |
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pSynthesisParameters[0] = new float[Event::destination_count * pAudioOut->MaxSamplesPerCycle()]; |
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for (int dst = 1; dst < Event::destination_count; dst++) |
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pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
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dmsg(1,("Starting disk thread...")); |
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pDiskThread->StartThread(); |
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dmsg(1,("OK\n")); |
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for (Voice* pVoice = pVoicePool->first(); pVoice; pVoice = pVoicePool->next()) { |
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if (!pVoice->pDiskThread) { |
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dmsg(0,("Engine -> voice::trigger: !pDiskThread\n")); |
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exit(EXIT_FAILURE); |
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} |
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} |
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} |
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void Engine::DisconnectAudioOutputDevice() { |
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if (pAudioOutputDevice) { // if clause to prevent disconnect loops |
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AudioOutputDevice* olddevice = pAudioOutputDevice; |
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pAudioOutputDevice = NULL; |
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olddevice->Disconnect(this); |
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} |
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} |
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/** |
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* Let this engine proceed to render the given amount of sample points. The |
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* calculated audio data of all voices of this engine will be placed into |
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* the engine's audio sum buffer which has to be copied and eventually be |
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* converted to the appropriate value range by the audio output class (e.g. |
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* AlsaIO or JackIO) right after. |
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* |
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* @param Samples - number of sample points to be rendered |
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* @returns 0 on success |
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*/ |
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int Engine::RenderAudio(uint Samples) { |
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dmsg(5,("RenderAudio(Samples=%d)\n", Samples)); |
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// return if no instrument loaded or engine disabled |
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if (EngineDisabled.Pop()) { |
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dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); |
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return 0; |
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} |
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if (!pInstrument) { |
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dmsg(5,("gig::Engine: no instrument loaded\n")); |
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return 0; |
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} |
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// empty the event lists for the new fragment |
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pEvents->clear(); |
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pCCEvents->clear(); |
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for (uint i = 0; i < Event::destination_count; i++) { |
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pSynthesisEvents[i]->clear(); |
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} |
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// read and copy events from input queue |
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Event event = pEventGenerator->CreateEvent(); |
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while (true) { |
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if (!pEventQueue->pop(&event)) break; |
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pEvents->alloc_assign(event); |
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} |
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// update time of start and end of this audio fragment (as events' time stamps relate to this) |
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pEventGenerator->UpdateFragmentTime(Samples); |
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// process events |
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Event* pNextEvent = pEvents->first(); |
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while (pNextEvent) { |
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Event* pEvent = pNextEvent; |
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pEvents->set_current(pEvent); |
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pNextEvent = pEvents->next(); |
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switch (pEvent->Type) { |
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case Event::type_note_on: |
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dmsg(5,("Audio Thread: Note on received\n")); |
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ProcessNoteOn(pEvent); |
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break; |
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case Event::type_note_off: |
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dmsg(5,("Audio Thread: Note off received\n")); |
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ProcessNoteOff(pEvent); |
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break; |
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case Event::type_control_change: |
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dmsg(5,("Audio Thread: MIDI CC received\n")); |
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ProcessControlChange(pEvent); |
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break; |
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case Event::type_pitchbend: |
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dmsg(5,("Audio Thread: Pitchbend received\n")); |
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ProcessPitchbend(pEvent); |
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break; |
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} |
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} |
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// render audio from all active voices |
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int active_voices = 0; |
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uint* piKey = pActiveKeys->first(); |
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while (piKey) { // iterate through all active keys |
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midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey]; |
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pActiveKeys->set_current(piKey); |
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piKey = pActiveKeys->next(); |
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Voice* pVoiceNext = pKey->pActiveVoices->first(); |
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while (pVoiceNext) { // iterate through all voices on this key |
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// already get next voice on key |
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Voice* pVoice = pVoiceNext; |
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pKey->pActiveVoices->set_current(pVoice); |
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pVoiceNext = pKey->pActiveVoices->next(); |
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// now render current voice |
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pVoice->Render(Samples); |
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if (pVoice->IsActive()) active_voices++; // still active |
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else { // voice reached end, is now inactive |
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KillVoice(pVoice); // remove voice from the list of active voices |
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} |
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} |
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pKey->pEvents->clear(); // free all events on the key |
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} |
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// write that to the disk thread class so that it can print it |
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// on the console for debugging purposes |
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ActiveVoiceCount = active_voices; |
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if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
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return 0; |
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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 |
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* voice for the given key. |
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* |
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* @param Key - MIDI key number of the triggered key |
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* @param Velocity - MIDI velocity value of the triggered key |
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*/ |
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void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) { |
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Event event = pEventGenerator->CreateEvent(); |
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event.Type = Event::type_note_on; |
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event.Key = Key; |
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event.Velocity = Velocity; |
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if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
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else dmsg(1,("Engine: Input event queue full!")); |
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} |
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/** |
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* Will be called by the MIDIIn Thread to signal the audio thread to release |
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* voice(s) on the given key. |
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* |
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* @param Key - MIDI key number of the released key |
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* @param Velocity - MIDI release velocity value of the released key |
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*/ |
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void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) { |
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Event event = pEventGenerator->CreateEvent(); |
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event.Type = Event::type_note_off; |
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event.Key = Key; |
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event.Velocity = Velocity; |
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if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
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else dmsg(1,("Engine: Input event queue full!")); |
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} |
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/** |
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* Will be called by the MIDIIn Thread to signal the audio thread to change |
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* the pitch value for all voices. |
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* |
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* @param Pitch - MIDI pitch value (-8192 ... +8191) |
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*/ |
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void Engine::SendPitchbend(int Pitch) { |
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Event event = pEventGenerator->CreateEvent(); |
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event.Type = Event::type_pitchbend; |
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event.Pitch = Pitch; |
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if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
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else dmsg(1,("Engine: Input event queue full!")); |
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} |
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/** |
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* Will be called by the MIDIIn Thread to signal the audio thread that a |
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* continuous controller value has changed. |
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* |
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* @param Controller - MIDI controller number of the occured control change |
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* @param Value - value of the control change |
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*/ |
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void Engine::SendControlChange(uint8_t Controller, uint8_t Value) { |
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Event event = pEventGenerator->CreateEvent(); |
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event.Type = Event::type_control_change; |
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event.Controller = Controller; |
|
|
event.Value = Value; |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
|
|
else dmsg(1,("Engine: Input event queue full!")); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Assigns and triggers a new voice for the respective MIDI key. |
|
|
* |
|
|
* @param pNoteOnEvent - key, velocity and time stamp of the event |
|
|
*/ |
|
|
void Engine::ProcessNoteOn(Event* pNoteOnEvent) { |
|
|
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key]; |
|
|
|
|
|
pKey->KeyPressed = true; // the MIDI key was now pressed down |
|
|
|
|
|
// cancel release process of voices on this key if needed |
|
|
if (pKey->Active && !SustainPedal) { |
|
|
pNoteOnEvent->Type = Event::type_cancel_release; // transform event type |
|
|
pEvents->move(pNoteOnEvent, pKey->pEvents); // move event to the key's own event list |
|
|
} |
|
|
|
|
|
// allocate a new voice for the key |
|
|
Voice* pNewVoice = pKey->pActiveVoices->alloc(); |
|
|
if (pNewVoice) { |
|
|
// launch the new voice |
|
|
if (pNewVoice->Trigger(pNoteOnEvent, this->Pitch, this->pInstrument) < 0) { |
|
|
dmsg(1,("Triggering new voice failed!\n")); |
|
|
pKey->pActiveVoices->free(pNewVoice); |
|
|
} |
|
|
else if (!pKey->Active) { // mark as active key |
|
|
pKey->Active = true; |
|
|
pKey->pSelf = pActiveKeys->alloc(); |
|
|
*pKey->pSelf = pNoteOnEvent->Key; |
|
|
} |
|
|
} |
|
|
else std::cerr << "No free voice!" << std::endl << std::flush; |
|
|
} |
|
|
|
|
|
/** |
|
|
* Releases the voices on the given key if sustain pedal is not pressed. |
|
|
* If sustain is pressed, the release of the note will be postponed until |
|
|
* sustain pedal will be released or voice turned inactive by itself (e.g. |
|
|
* due to completion of sample playback). |
|
|
* |
|
|
* @param pNoteOffEvent - key, velocity and time stamp of the event |
|
|
*/ |
|
|
void Engine::ProcessNoteOff(Event* pNoteOffEvent) { |
|
|
midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOffEvent->Key]; |
|
|
|
|
|
pKey->KeyPressed = false; // the MIDI key was now released |
|
|
|
|
|
// release voices on this key if needed |
|
|
if (pKey->Active && !SustainPedal) { |
|
|
pNoteOffEvent->Type = Event::type_release; // transform event type |
|
|
pEvents->move(pNoteOffEvent, pKey->pEvents); // move event to the key's own event list |
|
|
} |
|
|
} |
|
|
|
|
|
/** |
|
|
* Moves pitchbend event from the general (input) event list to the pitch |
|
|
* event list. |
|
|
* |
|
|
* @param pPitchbendEvent - absolute pitch value and time stamp of the event |
|
|
*/ |
|
|
void Engine::ProcessPitchbend(Event* pPitchbendEvent) { |
|
|
this->Pitch = pPitchbendEvent->Pitch; // store current pitch value |
|
|
pEvents->move(pPitchbendEvent, pSynthesisEvents[Event::destination_vco]); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Immediately kills the voice given with pVoice (no matter if sustain is |
|
|
* pressed or not) and removes it from the MIDI key's list of active voice. |
|
|
* This method will e.g. be called if a voice went inactive by itself. |
|
|
* |
|
|
* @param pVoice - points to the voice to be killed |
|
|
*/ |
|
|
void Engine::KillVoice(Voice* pVoice) { |
|
|
if (pVoice) { |
|
|
if (pVoice->IsActive()) pVoice->Kill(); |
|
|
|
|
|
midi_key_info_t* pKey = &pMIDIKeyInfo[pVoice->MIDIKey]; |
|
|
|
|
|
// free the voice object |
|
|
pVoicePool->free(pVoice); |
|
|
|
|
|
// check if there are no voices left on the MIDI key and update the key info if so |
|
|
if (pKey->pActiveVoices->is_empty()) { |
|
|
pKey->Active = false; |
|
|
pActiveKeys->free(pKey->pSelf); // remove key from list of active keys |
|
|
pKey->pSelf = NULL; |
|
|
dmsg(3,("Key has no more voices now\n")); |
|
|
} |
|
|
} |
|
|
else std::cerr << "Couldn't release voice! (pVoice == NULL)\n" << std::flush; |
|
|
} |
|
30 |
|
|
31 |
/** |
/** |
32 |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
33 |
* modulation wheel, aftertouch). |
* modulation wheel, aftertouch). |
34 |
* |
* |
35 |
* @param pControlChangeEvent - controller, value and time stamp of the event |
* @param pEngineChannel - engine channel on which this event occured on |
36 |
|
* @param itControlChangeEvent - controller, value and time stamp of the event |
37 |
*/ |
*/ |
38 |
void Engine::ProcessControlChange(Event* pControlChangeEvent) { |
void Engine::ProcessControlChange ( |
39 |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", pControlChangeEvent->Controller, pControlChangeEvent->Value)); |
LinuxSampler::EngineChannel* pEngineChannel, |
40 |
|
Pool<Event>::Iterator& itControlChangeEvent |
41 |
switch (pControlChangeEvent->Controller) { |
) { |
42 |
case 64: { |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); |
43 |
if (pControlChangeEvent->Value >= 64 && !SustainPedal) { |
|
44 |
dmsg(4,("PEDAL DOWN\n")); |
EngineChannel* pChannel = dynamic_cast<EngineChannel*>(pEngineChannel); |
45 |
SustainPedal = true; |
// handle the "control triggered" MIDI rule: a control change |
46 |
|
// event can trigger a new note on or note off event |
47 |
// cancel release process of voices if necessary |
if (pChannel->pInstrument) { |
48 |
uint* piKey = pActiveKeys->first(); |
|
49 |
if (piKey) { |
::gig::MidiRule* rule; |
50 |
pControlChangeEvent->Type = Event::type_cancel_release; // transform event type |
for (int i = 0 ; (rule = pChannel->pInstrument->GetMidiRule(i)) ; i++) { |
51 |
while (piKey) { |
|
52 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey]; |
if (::gig::MidiRuleCtrlTrigger* ctrlTrigger = |
53 |
pActiveKeys->set_current(piKey); |
dynamic_cast< ::gig::MidiRuleCtrlTrigger*>(rule)) { |
54 |
piKey = pActiveKeys->next(); |
if (itControlChangeEvent->Param.CC.Controller == |
55 |
if (!pKey->KeyPressed) { |
ctrlTrigger->ControllerNumber) { |
56 |
Event* pNewEvent = pKey->pEvents->alloc(); |
|
57 |
if (pNewEvent) *pNewEvent = *pControlChangeEvent; // copy event to the key's own event list |
uint8_t oldCCValue = pChannel->ControllerTable[ |
58 |
|
itControlChangeEvent->Param.CC.Controller]; |
59 |
|
uint8_t newCCValue = itControlChangeEvent->Param.CC.Value; |
60 |
|
|
61 |
|
for (int i = 0 ; i < ctrlTrigger->Triggers ; i++) { |
62 |
|
::gig::MidiRuleCtrlTrigger::trigger_t* pTrigger = |
63 |
|
&ctrlTrigger->pTriggers[i]; |
64 |
|
|
65 |
|
// check if the controller has passed the |
66 |
|
// trigger point in the right direction |
67 |
|
if ((pTrigger->Descending && |
68 |
|
oldCCValue > pTrigger->TriggerPoint && |
69 |
|
newCCValue <= pTrigger->TriggerPoint) || |
70 |
|
(!pTrigger->Descending && |
71 |
|
oldCCValue < pTrigger->TriggerPoint && |
72 |
|
newCCValue >= pTrigger->TriggerPoint)) { |
73 |
|
|
74 |
|
RTList<Event>::Iterator itNewEvent = pGlobalEvents->allocAppend(); |
75 |
|
if (itNewEvent) { |
76 |
|
*itNewEvent = *itControlChangeEvent; |
77 |
|
itNewEvent->Param.Note.Key = pTrigger->Key; |
78 |
|
|
79 |
|
if (pTrigger->NoteOff || pTrigger->Velocity == 0) { |
80 |
|
itNewEvent->Type = Event::type_note_off; |
81 |
|
itNewEvent->Param.Note.Velocity = 100; |
82 |
|
|
83 |
|
ProcessNoteOff(pEngineChannel, itNewEvent); |
84 |
|
} else { |
85 |
|
itNewEvent->Type = Event::type_note_on; |
86 |
|
//TODO: if Velocity is 255, the triggered velocity should |
87 |
|
// depend on how fast the controller is moving |
88 |
|
itNewEvent->Param.Note.Velocity = |
89 |
|
pTrigger->Velocity == 255 ? 100 : |
90 |
|
pTrigger->Velocity; |
91 |
|
|
92 |
|
ProcessNoteOn(pEngineChannel, itNewEvent); |
93 |
|
} |
94 |
|
} |
95 |
else dmsg(1,("Event pool emtpy!\n")); |
else dmsg(1,("Event pool emtpy!\n")); |
96 |
} |
} |
97 |
} |
} |
98 |
} |
} |
99 |
} |
} |
|
if (pControlChangeEvent->Value < 64 && SustainPedal) { |
|
|
dmsg(4,("PEDAL UP\n")); |
|
|
SustainPedal = false; |
|
|
|
|
|
// release voices if their respective key is not pressed |
|
|
uint* piKey = pActiveKeys->first(); |
|
|
if (piKey) { |
|
|
pControlChangeEvent->Type = Event::type_release; // transform event type |
|
|
while (piKey) { |
|
|
midi_key_info_t* pKey = &pMIDIKeyInfo[*piKey]; |
|
|
pActiveKeys->set_current(piKey); |
|
|
piKey = pActiveKeys->next(); |
|
|
if (!pKey->KeyPressed) { |
|
|
Event* pNewEvent = pKey->pEvents->alloc(); |
|
|
if (pNewEvent) *pNewEvent = *pControlChangeEvent; // copy event to the key's own event list |
|
|
else dmsg(1,("Event pool emtpy!\n")); |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
break; |
|
100 |
} |
} |
101 |
} |
} |
102 |
|
|
103 |
// update controller value in the engine's controller table |
// update controller value in the engine channel's controller table |
104 |
ControllerTable[pControlChangeEvent->Controller] = pControlChangeEvent->Value; |
pChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
105 |
|
|
106 |
// move event from the unsorted event list to the control change event list |
ProcessHardcodedControllers(pEngineChannel, itControlChangeEvent); |
|
pEvents->move(pControlChangeEvent, pCCEvents); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Initialize the parameter sequence for the modulation destination given by |
|
|
* by 'dst' with the constant value given by val. |
|
|
*/ |
|
|
void Engine::ResetSynthesisParameters(Event::destination_t dst, float val) { |
|
|
int maxsamples = pAudioOutputDevice->MaxSamplesPerCycle(); |
|
|
for (int i = 0; i < maxsamples; i++) pSynthesisParameters[dst][i] = val; |
|
|
} |
|
107 |
|
|
108 |
float Engine::Volume() { |
// handle FX send controllers |
109 |
return GlobalVolume; |
ProcessFxSendControllers(pChannel, itControlChangeEvent); |
110 |
} |
} |
111 |
|
|
112 |
void Engine::Volume(float f) { |
DiskThread* Engine::CreateDiskThread() { |
113 |
GlobalVolume = f; |
return new DiskThread ( |
114 |
} |
iMaxDiskStreams, |
115 |
|
((pAudioOutputDevice->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo |
116 |
|
&instruments |
117 |
|
); |
118 |
|
} |
119 |
|
|
120 |
|
void Engine::TriggerNewVoices ( |
121 |
|
LinuxSampler::EngineChannel* pEngineChannel, |
122 |
|
RTList<Event>::Iterator& itNoteOnEvent, |
123 |
|
bool HandleKeyGroupConflicts |
124 |
|
) { |
125 |
|
EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel); |
126 |
|
// first, get total amount of required voices (dependant on amount of layers) |
127 |
|
::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
128 |
|
if (pRegion && !RegionSuspended(pRegion)) { |
129 |
|
int voicesRequired = pRegion->Layers; |
130 |
|
// now launch the required amount of voices |
131 |
|
for (int i = 0; i < voicesRequired; i++) |
132 |
|
LaunchVoice(pChannel, itNoteOnEvent, i, false, true, HandleKeyGroupConflicts); |
133 |
|
} |
134 |
|
} |
135 |
|
|
136 |
|
void Engine::TriggerReleaseVoices ( |
137 |
|
LinuxSampler::EngineChannel* pEngineChannel, |
138 |
|
RTList<Event>::Iterator& itNoteOffEvent |
139 |
|
) { |
140 |
|
EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel); |
141 |
|
MidiKey* pKey = &pChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
142 |
|
// first, get total amount of required voices (dependant on amount of layers) |
143 |
|
::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOffEvent->Param.Note.Key); |
144 |
|
if (pRegion) { |
145 |
|
int voicesRequired = pRegion->Layers; |
146 |
|
|
147 |
|
// MIDI note-on velocity is used instead of note-off velocity |
148 |
|
itNoteOffEvent->Param.Note.Velocity = pKey->Velocity; |
149 |
|
|
150 |
|
// now launch the required amount of voices |
151 |
|
for (int i = 0; i < voicesRequired; i++) |
152 |
|
LaunchVoice(pChannel, itNoteOffEvent, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
153 |
|
} |
154 |
|
} |
155 |
|
|
156 |
|
Pool<Voice>::Iterator Engine::LaunchVoice ( |
157 |
|
LinuxSampler::EngineChannel* pEngineChannel, |
158 |
|
Pool<Event>::Iterator& itNoteOnEvent, |
159 |
|
int iLayer, |
160 |
|
bool ReleaseTriggerVoice, |
161 |
|
bool VoiceStealing, |
162 |
|
bool HandleKeyGroupConflicts |
163 |
|
) { |
164 |
|
EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel); |
165 |
|
int MIDIKey = itNoteOnEvent->Param.Note.Key; |
166 |
|
EngineChannel::MidiKey* pKey = &pChannel->pMIDIKeyInfo[MIDIKey]; |
167 |
|
::gig::Region* pRegion = pChannel->pInstrument->GetRegion(MIDIKey); |
168 |
|
|
169 |
|
// if nothing defined for this key |
170 |
|
if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do |
171 |
|
|
172 |
|
int iKeyGroup = pRegion->KeyGroup; |
173 |
|
// only need to send a group event from the first voice in a layered region, |
174 |
|
// as all layers in a region always belongs to the same key group |
175 |
|
if (HandleKeyGroupConflicts && iLayer == 0) pChannel->HandleKeyGroupConflicts(iKeyGroup, itNoteOnEvent); |
176 |
|
|
177 |
|
Voice::type_t VoiceType = Voice::type_normal; |
178 |
|
|
179 |
|
// get current dimension values to select the right dimension region |
180 |
|
//TODO: for stolen voices this dimension region selection block is processed twice, this should be changed |
181 |
|
//FIXME: controller values for selecting the dimension region here are currently not sample accurate |
182 |
|
uint DimValues[8] = { 0 }; |
183 |
|
for (int i = pRegion->Dimensions - 1; i >= 0; i--) { |
184 |
|
switch (pRegion->pDimensionDefinitions[i].dimension) { |
185 |
|
case ::gig::dimension_samplechannel: |
186 |
|
DimValues[i] = 0; //TODO: we currently ignore this dimension |
187 |
|
break; |
188 |
|
case ::gig::dimension_layer: |
189 |
|
DimValues[i] = iLayer; |
190 |
|
break; |
191 |
|
case ::gig::dimension_velocity: |
192 |
|
DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
193 |
|
break; |
194 |
|
case ::gig::dimension_channelaftertouch: |
195 |
|
DimValues[i] = pChannel->ControllerTable[128]; |
196 |
|
break; |
197 |
|
case ::gig::dimension_releasetrigger: |
198 |
|
VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal; |
199 |
|
DimValues[i] = (uint) ReleaseTriggerVoice; |
200 |
|
break; |
201 |
|
case ::gig::dimension_keyboard: |
202 |
|
DimValues[i] = (uint) (pChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones); |
203 |
|
break; |
204 |
|
case ::gig::dimension_roundrobin: |
205 |
|
DimValues[i] = uint(*pChannel->pMIDIKeyInfo[MIDIKey].pRoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on in this Region |
206 |
|
break; |
207 |
|
case ::gig::dimension_roundrobinkeyboard: |
208 |
|
DimValues[i] = uint(pChannel->RoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on |
209 |
|
break; |
210 |
|
case ::gig::dimension_random: |
211 |
|
DimValues[i] = uint(Random() * pRegion->pDimensionDefinitions[i].zones); |
212 |
|
break; |
213 |
|
case ::gig::dimension_modwheel: |
214 |
|
DimValues[i] = pChannel->ControllerTable[1]; |
215 |
|
break; |
216 |
|
case ::gig::dimension_breath: |
217 |
|
DimValues[i] = pChannel->ControllerTable[2]; |
218 |
|
break; |
219 |
|
case ::gig::dimension_foot: |
220 |
|
DimValues[i] = pChannel->ControllerTable[4]; |
221 |
|
break; |
222 |
|
case ::gig::dimension_portamentotime: |
223 |
|
DimValues[i] = pChannel->ControllerTable[5]; |
224 |
|
break; |
225 |
|
case ::gig::dimension_effect1: |
226 |
|
DimValues[i] = pChannel->ControllerTable[12]; |
227 |
|
break; |
228 |
|
case ::gig::dimension_effect2: |
229 |
|
DimValues[i] = pChannel->ControllerTable[13]; |
230 |
|
break; |
231 |
|
case ::gig::dimension_genpurpose1: |
232 |
|
DimValues[i] = pChannel->ControllerTable[16]; |
233 |
|
break; |
234 |
|
case ::gig::dimension_genpurpose2: |
235 |
|
DimValues[i] = pChannel->ControllerTable[17]; |
236 |
|
break; |
237 |
|
case ::gig::dimension_genpurpose3: |
238 |
|
DimValues[i] = pChannel->ControllerTable[18]; |
239 |
|
break; |
240 |
|
case ::gig::dimension_genpurpose4: |
241 |
|
DimValues[i] = pChannel->ControllerTable[19]; |
242 |
|
break; |
243 |
|
case ::gig::dimension_sustainpedal: |
244 |
|
DimValues[i] = pChannel->ControllerTable[64]; |
245 |
|
break; |
246 |
|
case ::gig::dimension_portamento: |
247 |
|
DimValues[i] = pChannel->ControllerTable[65]; |
248 |
|
break; |
249 |
|
case ::gig::dimension_sostenutopedal: |
250 |
|
DimValues[i] = pChannel->ControllerTable[66]; |
251 |
|
break; |
252 |
|
case ::gig::dimension_softpedal: |
253 |
|
DimValues[i] = pChannel->ControllerTable[67]; |
254 |
|
break; |
255 |
|
case ::gig::dimension_genpurpose5: |
256 |
|
DimValues[i] = pChannel->ControllerTable[80]; |
257 |
|
break; |
258 |
|
case ::gig::dimension_genpurpose6: |
259 |
|
DimValues[i] = pChannel->ControllerTable[81]; |
260 |
|
break; |
261 |
|
case ::gig::dimension_genpurpose7: |
262 |
|
DimValues[i] = pChannel->ControllerTable[82]; |
263 |
|
break; |
264 |
|
case ::gig::dimension_genpurpose8: |
265 |
|
DimValues[i] = pChannel->ControllerTable[83]; |
266 |
|
break; |
267 |
|
case ::gig::dimension_effect1depth: |
268 |
|
DimValues[i] = pChannel->ControllerTable[91]; |
269 |
|
break; |
270 |
|
case ::gig::dimension_effect2depth: |
271 |
|
DimValues[i] = pChannel->ControllerTable[92]; |
272 |
|
break; |
273 |
|
case ::gig::dimension_effect3depth: |
274 |
|
DimValues[i] = pChannel->ControllerTable[93]; |
275 |
|
break; |
276 |
|
case ::gig::dimension_effect4depth: |
277 |
|
DimValues[i] = pChannel->ControllerTable[94]; |
278 |
|
break; |
279 |
|
case ::gig::dimension_effect5depth: |
280 |
|
DimValues[i] = pChannel->ControllerTable[95]; |
281 |
|
break; |
282 |
|
case ::gig::dimension_none: |
283 |
|
std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush; |
284 |
|
break; |
285 |
|
default: |
286 |
|
std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush; |
287 |
|
} |
288 |
|
} |
289 |
|
|
290 |
uint Engine::VoiceCount() { |
// return if this is a release triggered voice and there is no |
291 |
return ActiveVoiceCount; |
// releasetrigger dimension (could happen if an instrument |
292 |
} |
// change has occured between note on and off) |
293 |
|
if (ReleaseTriggerVoice && VoiceType != Voice::type_release_trigger) return Pool<Voice>::Iterator(); |
294 |
|
|
295 |
uint Engine::VoiceCountMax() { |
::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues); |
|
return ActiveVoiceCountMax; |
|
|
} |
|
296 |
|
|
297 |
bool Engine::DiskStreamSupported() { |
// no need to continue if sample is silent |
298 |
return true; |
if (!pDimRgn->pSample || !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator(); |
|
} |
|
299 |
|
|
300 |
uint Engine::DiskStreamCount() { |
// allocate a new voice for the key |
301 |
return (pDiskThread) ? pDiskThread->ActiveStreamCount : 0; |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
|
} |
|
302 |
|
|
303 |
uint Engine::DiskStreamCountMax() { |
int res = InitNewVoice ( |
304 |
return (pDiskThread) ? pDiskThread->ActiveStreamCountMax : 0; |
pChannel, pDimRgn, itNoteOnEvent, VoiceType, iLayer, |
305 |
} |
iKeyGroup, ReleaseTriggerVoice, VoiceStealing, itNewVoice |
306 |
|
); |
307 |
|
if (!res) return itNewVoice; |
308 |
|
|
309 |
String Engine::DiskStreamBufferFillBytes() { |
return Pool<Voice>::Iterator(); // no free voice or error |
|
return pDiskThread->GetBufferFillBytes(); |
|
310 |
} |
} |
311 |
|
|
312 |
String Engine::DiskStreamBufferFillPercentage() { |
bool Engine::DiskStreamSupported() { |
313 |
return pDiskThread->GetBufferFillPercentage(); |
return true; |
314 |
} |
} |
315 |
|
|
316 |
String Engine::Description() { |
String Engine::Description() { |
317 |
return "Gigasampler Engine"; |
return "GigaSampler Format Engine"; |
318 |
} |
} |
319 |
|
|
320 |
String Engine::Version() { |
String Engine::Version() { |
321 |
return "0.0.1-0cvs20040423"; |
String s = "$Revision: 1.109 $"; |
322 |
|
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
323 |
} |
} |
324 |
|
|
325 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |