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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 * |
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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 "DiskThread.h" |
#include "DiskThread.h" |
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#include "Voice.h" |
#include "Voice.h" |
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#include "EGADSR.h" |
#include "EGADSR.h" |
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#include "../EngineFactory.h" |
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#include "Engine.h" |
#include "Engine.h" |
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#if defined(__APPLE__) |
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# include <stdlib.h> |
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#else |
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# include <malloc.h> |
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#endif |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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InstrumentResourceManager Engine::Instruments; |
InstrumentResourceManager Engine::instruments; |
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std::map<AudioOutputDevice*,Engine*> Engine::engines; |
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/** |
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* Get a gig::Engine object for the given gig::EngineChannel and the |
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* given AudioOutputDevice. All engine channels which are connected to |
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* the same audio output device will use the same engine instance. This |
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* method will be called by a gig::EngineChannel whenever it's |
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* connecting to a audio output device. |
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* |
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* @param pChannel - engine channel which acquires an engine object |
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* @param pDevice - the audio output device \a pChannel is connected to |
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*/ |
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Engine* Engine::AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) { |
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Engine* pEngine = NULL; |
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// check if there's already an engine for the given audio output device |
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if (engines.count(pDevice)) { |
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dmsg(4,("Using existing gig::Engine.\n")); |
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pEngine = engines[pDevice]; |
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} else { // create a new engine (and disk thread) instance for the given audio output device |
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dmsg(4,("Creating new gig::Engine.\n")); |
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pEngine = (Engine*) EngineFactory::Create("gig"); |
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pEngine->Connect(pDevice); |
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engines[pDevice] = pEngine; |
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} |
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// register engine channel to the engine instance |
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pEngine->engineChannels.add(pChannel); |
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// remember index in the ArrayList |
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pChannel->iEngineIndexSelf = pEngine->engineChannels.size() - 1; |
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dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); |
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return pEngine; |
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} |
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/** |
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* Once an engine channel is disconnected from an audio output device, |
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* it wil immediately call this method to unregister itself from the |
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* engine instance and if that engine instance is not used by any other |
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* engine channel anymore, then that engine instance will be destroyed. |
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* |
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* @param pChannel - engine channel which wants to disconnect from it's |
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* engine instance |
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* @param pDevice - audio output device \a pChannel was connected to |
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*/ |
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void Engine::FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) { |
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dmsg(4,("Disconnecting EngineChannel from gig::Engine.\n")); |
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Engine* pEngine = engines[pDevice]; |
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// unregister EngineChannel from the Engine instance |
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pEngine->engineChannels.remove(pChannel); |
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// if the used Engine instance is not used anymore, then destroy it |
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if (pEngine->engineChannels.empty()) { |
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pDevice->Disconnect(pEngine); |
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engines.erase(pDevice); |
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delete pEngine; |
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dmsg(4,("Destroying gig::Engine.\n")); |
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} |
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else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); |
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} |
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/** |
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* Constructor |
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*/ |
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Engine::Engine() { |
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; |
pAudioOutputDevice = NULL; |
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pDiskThread = NULL; |
pDiskThread = NULL; |
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pEventGenerator = NULL; |
pEventGenerator = NULL; |
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pSysexBuffer = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0); |
pSysexBuffer = new RingBuffer<uint8_t,false>(CONFIG_SYSEX_BUFFER_SIZE, 0); |
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pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
pEventQueue = new RingBuffer<Event,false>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0); |
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pEventPool = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT); |
pEventPool = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT); |
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pVoicePool = new Pool<Voice>(MAX_AUDIO_VOICES); |
pVoicePool = new Pool<Voice>(CONFIG_MAX_VOICES); |
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pActiveKeys = new Pool<uint>(128); |
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pVoiceStealingQueue = new RTList<Event>(pEventPool); |
pVoiceStealingQueue = new RTList<Event>(pEventPool); |
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pEvents = new RTList<Event>(pEventPool); |
pGlobalEvents = new RTList<Event>(pEventPool); |
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pCCEvents = new RTList<Event>(pEventPool); |
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for (uint i = 0; i < Event::destination_count; i++) { |
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pSynthesisEvents[i] = new RTList<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 RTList<Voice>(pVoicePool); |
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pMIDIKeyInfo[i].KeyPressed = false; |
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pMIDIKeyInfo[i].Active = false; |
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pMIDIKeyInfo[i].ReleaseTrigger = false; |
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pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEventPool); |
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} |
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for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
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iterVoice->SetEngine(this); |
iterVoice->SetEngine(this); |
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} |
} |
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pVoicePool->clear(); |
pVoicePool->clear(); |
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pSynthesisParameters[0] = NULL; // we allocate when an audio device is connected |
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pBasicFilterParameters = NULL; |
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pMainFilterParameters = NULL; |
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InstrumentIdx = -1; |
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InstrumentStat = -1; |
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AudioDeviceChannelLeft = -1; |
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AudioDeviceChannelRight = -1; |
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ResetInternal(); |
ResetInternal(); |
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ResetScaleTuning(); |
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} |
} |
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/** |
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* Destructor |
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*/ |
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Engine::~Engine() { |
Engine::~Engine() { |
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MidiInputPort::RemoveSysexListener(this); |
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if (pDiskThread) { |
if (pDiskThread) { |
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dmsg(1,("Stopping disk thread...")); |
dmsg(1,("Stopping disk thread...")); |
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pDiskThread->StopThread(); |
pDiskThread->StopThread(); |
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delete pDiskThread; |
delete pDiskThread; |
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dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
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} |
} |
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if (pInstrument) Instruments.HandBack(pInstrument, this); |
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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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if (pEvents) delete pEvents; |
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if (pCCEvents) delete pCCEvents; |
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if (pEventQueue) delete pEventQueue; |
if (pEventQueue) delete pEventQueue; |
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if (pEventPool) delete pEventPool; |
if (pEventPool) delete pEventPool; |
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if (pVoicePool) { |
if (pVoicePool) { |
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pVoicePool->clear(); |
pVoicePool->clear(); |
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delete pVoicePool; |
delete pVoicePool; |
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} |
} |
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if (pActiveKeys) delete pActiveKeys; |
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if (pSysexBuffer) delete pSysexBuffer; |
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if (pEventGenerator) delete pEventGenerator; |
if (pEventGenerator) delete pEventGenerator; |
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if (pMainFilterParameters) delete[] pMainFilterParameters; |
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if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
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if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
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if (pVoiceStealingQueue) delete pVoiceStealingQueue; |
if (pVoiceStealingQueue) delete pVoiceStealingQueue; |
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if (pSysexBuffer) delete pSysexBuffer; |
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EngineFactory::Destroy(this); |
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} |
} |
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void Engine::Enable() { |
void Engine::Enable() { |
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*/ |
*/ |
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void Engine::Reset() { |
void Engine::Reset() { |
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DisableAndLock(); |
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(); |
ResetInternal(); |
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ResetScaleTuning(); |
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// signal audio thread to continue with rendering |
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//SuspensionRequested = false; |
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Enable(); |
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 |
* 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! |
* control and status variables. This method is protected by a mutex. |
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*/ |
*/ |
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void Engine::ResetInternal() { |
void Engine::ResetInternal() { |
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Pitch = 0; |
ResetInternalMutex.Lock(); |
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SustainPedal = false; |
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// make sure that the engine does not get any sysex messages |
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// while it's reseting |
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bool sysexDisabled = MidiInputPort::RemoveSysexListener(this); |
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ActiveVoiceCount = 0; |
ActiveVoiceCount = 0; |
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ActiveVoiceCountMax = 0; |
ActiveVoiceCountMax = 0; |
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GlobalVolume = 1.0; |
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CurrentKeyDimension = 0; |
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// reset voice stealing parameters |
// reset voice stealing parameters |
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itLastStolenVoice = RTList<Voice>::Iterator(); |
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iuiLastStolenKey = RTList<uint>::Iterator(); |
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pVoiceStealingQueue->clear(); |
pVoiceStealingQueue->clear(); |
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itLastStolenVoice = RTList<Voice>::Iterator(); |
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// reset to normal chromatic scale (means equal temper) |
itLastStolenVoiceGlobally = RTList<Voice>::Iterator(); |
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memset(&ScaleTuning[0], 0x00, 12); |
iuiLastStolenKey = RTList<uint>::Iterator(); |
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iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); |
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// set all MIDI controller values to zero |
pLastStolenChannel = NULL; |
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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].ReleaseTrigger = false; |
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pMIDIKeyInfo[i].itSelf = Pool<uint>::Iterator(); |
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} |
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// reset all key groups |
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map<uint,uint*>::iterator iter = ActiveKeyGroups.begin(); |
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for (; iter != ActiveKeyGroups.end(); iter++) iter->second = NULL; |
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// reset all voices |
// reset all voices |
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for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
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} |
} |
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pVoicePool->clear(); |
pVoicePool->clear(); |
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// free all active keys |
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pActiveKeys->clear(); |
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// reset disk thread |
// reset disk thread |
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if (pDiskThread) pDiskThread->Reset(); |
if (pDiskThread) pDiskThread->Reset(); |
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// delete all input events |
// delete all input events |
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pEventQueue->init(); |
pEventQueue->init(); |
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pSysexBuffer->init(); |
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if (sysexDisabled) MidiInputPort::AddSysexListener(this); |
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ResetInternalMutex.Unlock(); |
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} |
} |
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/** |
/** |
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* More or less a workaround to set the instrument name, index and load |
* Reset to normal, chromatic scale (means equal tempered). |
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* status variable to zero percent immediately, that is without blocking |
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* the calling thread. It might be used in future for other preparations |
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* as well though. |
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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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* @see LoadInstrument() |
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*/ |
*/ |
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void Engine::PrepareLoadInstrument(const char* FileName, uint Instrument) { |
void Engine::ResetScaleTuning() { |
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InstrumentFile = FileName; |
memset(&ScaleTuning[0], 0x00, 12); |
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InstrumentIdx = Instrument; |
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InstrumentStat = 0; |
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} |
} |
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/** |
/** |
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* Load an instrument from a .gig file. PrepareLoadInstrument() has to |
* Connect this engine instance with the given audio output device. |
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* be called first to provide the information which instrument to load. |
* This method will be called when an Engine instance is created. |
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* This method will then actually start to load the instrument and block |
* All of the engine's data structures which are dependant to the used |
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* the calling thread until loading was completed. |
* audio output device / driver will be (re)allocated and / or |
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* adjusted appropriately. |
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* |
* |
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* @returns detailed description of the method call result |
* @param pAudioOut - audio output device to connect to |
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* @see PrepareLoadInstrument() |
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*/ |
*/ |
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void Engine::LoadInstrument() { |
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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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// delete all key groups |
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ActiveKeyGroups.clear(); |
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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 = InstrumentFile; |
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instrid.iInstrument = InstrumentIdx; |
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pInstrument = Instruments.Borrow(instrid, this); |
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if (!pInstrument) { |
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InstrumentStat = -1; |
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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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InstrumentStat = -2; |
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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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InstrumentStat = -3; |
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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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InstrumentStat = -4; |
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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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// rebuild ActiveKeyGroups map with key groups of current instrument |
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for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion()) |
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if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL; |
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InstrumentIdxName = pInstrument->pInfo->Name; |
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InstrumentStat = 100; |
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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; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument()) |
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Enable(); |
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} |
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void Engine::Connect(AudioOutputDevice* pAudioOut) { |
void Engine::Connect(AudioOutputDevice* pAudioOut) { |
221 |
pAudioOutputDevice = pAudioOut; |
pAudioOutputDevice = pAudioOut; |
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} |
} |
229 |
catch (AudioOutputException e) { |
catch (AudioOutputException e) { |
230 |
String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); |
String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); |
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throw LinuxSamplerException(msg); |
throw Exception(msg); |
232 |
} |
} |
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this->AudioDeviceChannelLeft = 0; |
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
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this->AudioDeviceChannelRight = 1; |
this->SampleRate = pAudioOutputDevice->SampleRate(); |
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this->pOutputLeft = pAudioOutputDevice->Channel(0)->Buffer(); |
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this->pOutputRight = pAudioOutputDevice->Channel(1)->Buffer(); |
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this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
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this->SampleRate = pAudioOutputDevice->SampleRate(); |
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// FIXME: audio drivers with varying fragment sizes might be a problem here |
// FIXME: audio drivers with varying fragment sizes might be a problem here |
238 |
MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1; |
MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1; |
239 |
if (MaxFadeOutPos < 0) |
if (MaxFadeOutPos < 0) { |
240 |
throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h to big for current audio fragment size / sampling rate!"); |
std::cerr << "gig::Engine: WARNING, CONFIG_EG_MIN_RELEASE_TIME " |
241 |
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<< "too big for current audio fragment size & sampling rate! " |
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<< "May lead to click sounds if voice stealing chimes in!\n" << std::flush; |
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// force volume ramp downs at the beginning of each fragment |
244 |
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MaxFadeOutPos = 0; |
245 |
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// lower minimum release time |
246 |
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const float minReleaseTime = (float) MaxSamplesPerCycle / (float) SampleRate; |
247 |
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for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) { |
248 |
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iterVoice->EG1.CalculateFadeOutCoeff(minReleaseTime, SampleRate); |
249 |
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} |
250 |
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pVoicePool->clear(); |
251 |
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} |
252 |
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253 |
// (re)create disk thread |
// (re)create disk thread |
254 |
if (this->pDiskThread) { |
if (this->pDiskThread) { |
257 |
delete this->pDiskThread; |
delete this->pDiskThread; |
258 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
259 |
} |
} |
260 |
this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
261 |
if (!pDiskThread) { |
if (!pDiskThread) { |
262 |
dmsg(0,("gig::Engine new diskthread = NULL\n")); |
dmsg(0,("gig::Engine new diskthread = NULL\n")); |
263 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
273 |
if (pEventGenerator) delete pEventGenerator; |
if (pEventGenerator) delete pEventGenerator; |
274 |
pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); |
pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); |
275 |
|
|
|
// (re)allocate synthesis parameter matrix |
|
|
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
|
|
|
|
|
#if defined(__APPLE__) |
|
|
pSynthesisParameters[0] = (float *) malloc(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()); |
|
|
#else |
|
|
pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle())); |
|
|
#endif |
|
|
for (int dst = 1; dst < Event::destination_count; dst++) |
|
|
pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
|
|
|
|
|
// (re)allocate biquad filter parameter sequence |
|
|
if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
|
|
if (pMainFilterParameters) delete[] pMainFilterParameters; |
|
|
pBasicFilterParameters = new biquad_param_t[pAudioOut->MaxSamplesPerCycle()]; |
|
|
pMainFilterParameters = new biquad_param_t[pAudioOut->MaxSamplesPerCycle()]; |
|
|
|
|
276 |
dmsg(1,("Starting disk thread...")); |
dmsg(1,("Starting disk thread...")); |
277 |
pDiskThread->StartThread(); |
pDiskThread->StartThread(); |
278 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
285 |
} |
} |
286 |
} |
} |
287 |
|
|
288 |
void Engine::DisconnectAudioOutputDevice() { |
/** |
289 |
if (pAudioOutputDevice) { // if clause to prevent disconnect loops |
* Clear all engine global event lists. |
290 |
AudioOutputDevice* olddevice = pAudioOutputDevice; |
*/ |
291 |
pAudioOutputDevice = NULL; |
void Engine::ClearEventLists() { |
292 |
olddevice->Disconnect(this); |
pGlobalEvents->clear(); |
293 |
AudioDeviceChannelLeft = -1; |
} |
294 |
AudioDeviceChannelRight = -1; |
|
295 |
|
/** |
296 |
|
* Copy all events from the engine's global input queue buffer to the |
297 |
|
* engine's internal event list. This will be done at the beginning of |
298 |
|
* each audio cycle (that is each RenderAudio() call) to distinguish |
299 |
|
* all global events which have to be processed in the current audio |
300 |
|
* cycle. These events are usually just SysEx messages. Every |
301 |
|
* EngineChannel has it's own input event queue buffer and event list |
302 |
|
* to handle common events like NoteOn, NoteOff and ControlChange |
303 |
|
* events. |
304 |
|
* |
305 |
|
* @param Samples - number of sample points to be processed in the |
306 |
|
* current audio cycle |
307 |
|
*/ |
308 |
|
void Engine::ImportEvents(uint Samples) { |
309 |
|
RingBuffer<Event,false>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
310 |
|
Event* pEvent; |
311 |
|
while (true) { |
312 |
|
// get next event from input event queue |
313 |
|
if (!(pEvent = eventQueueReader.pop())) break; |
314 |
|
// if younger event reached, ignore that and all subsequent ones for now |
315 |
|
if (pEvent->FragmentPos() >= Samples) { |
316 |
|
eventQueueReader--; |
317 |
|
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
318 |
|
pEvent->ResetFragmentPos(); |
319 |
|
break; |
320 |
|
} |
321 |
|
// copy event to internal event list |
322 |
|
if (pGlobalEvents->poolIsEmpty()) { |
323 |
|
dmsg(1,("Event pool emtpy!\n")); |
324 |
|
break; |
325 |
|
} |
326 |
|
*pGlobalEvents->allocAppend() = *pEvent; |
327 |
} |
} |
328 |
|
eventQueueReader.free(); // free all copied events from input queue |
329 |
} |
} |
330 |
|
|
331 |
/** |
/** |
332 |
* Let this engine proceed to render the given amount of sample points. The |
* Let this engine proceed to render the given amount of sample points. |
333 |
* calculated audio data of all voices of this engine will be placed into |
* The engine will iterate through all engine channels and render audio |
334 |
* the engine's audio sum buffer which has to be copied and eventually be |
* for each engine channel independently. The calculated audio data of |
335 |
* converted to the appropriate value range by the audio output class (e.g. |
* all voices of each engine channel will be placed into the audio sum |
336 |
* AlsaIO or JackIO) right after. |
* buffers of the respective audio output device, connected to the |
337 |
|
* respective engine channel. |
338 |
* |
* |
339 |
* @param Samples - number of sample points to be rendered |
* @param Samples - number of sample points to be rendered |
340 |
* @returns 0 on success |
* @returns 0 on success |
341 |
*/ |
*/ |
342 |
int Engine::RenderAudio(uint Samples) { |
int Engine::RenderAudio(uint Samples) { |
343 |
dmsg(5,("RenderAudio(Samples=%d)\n", Samples)); |
dmsg(7,("RenderAudio(Samples=%d)\n", Samples)); |
344 |
|
|
345 |
// return if no instrument loaded or engine disabled |
// return if engine disabled |
346 |
if (EngineDisabled.Pop()) { |
if (EngineDisabled.Pop()) { |
347 |
dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); |
dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); |
348 |
return 0; |
return 0; |
349 |
} |
} |
|
if (!pInstrument) { |
|
|
dmsg(5,("gig::Engine: no instrument loaded\n")); |
|
|
return 0; |
|
|
} |
|
|
|
|
350 |
|
|
351 |
// update time of start and end of this audio fragment (as events' time stamps relate to this) |
// update time of start and end of this audio fragment (as events' time stamps relate to this) |
352 |
pEventGenerator->UpdateFragmentTime(Samples); |
pEventGenerator->UpdateFragmentTime(Samples); |
353 |
|
|
354 |
|
// We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned |
355 |
|
// in each audio fragment. All subsequent request for spawning new |
356 |
|
// voices in the same audio fragment will be ignored. |
357 |
|
VoiceSpawnsLeft = CONFIG_MAX_VOICES; |
358 |
|
|
359 |
|
// get all events from the engine's global input event queue which belong to the current fragment |
360 |
|
// (these are usually just SysEx messages) |
361 |
|
ImportEvents(Samples); |
362 |
|
|
363 |
// empty the event lists for the new fragment |
// process engine global events (these are currently only MIDI System Exclusive messages) |
|
pEvents->clear(); |
|
|
pCCEvents->clear(); |
|
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
pSynthesisEvents[i]->clear(); |
|
|
} |
|
364 |
{ |
{ |
365 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<Event>::Iterator itEvent = pGlobalEvents->first(); |
366 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
RTList<Event>::Iterator end = pGlobalEvents->end(); |
367 |
for(; iuiKey != end; ++iuiKey) { |
for (; itEvent != end; ++itEvent) { |
368 |
pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
switch (itEvent->Type) { |
369 |
|
case Event::type_sysex: |
370 |
|
dmsg(5,("Engine: Sysex received\n")); |
371 |
|
ProcessSysex(itEvent); |
372 |
|
break; |
373 |
|
} |
374 |
} |
} |
375 |
} |
} |
376 |
|
|
377 |
|
// reset internal voice counter (just for statistic of active voices) |
378 |
|
ActiveVoiceCountTemp = 0; |
379 |
|
|
380 |
// get all events from the input event queue which belong to the current fragment |
// handle events on all engine channels |
381 |
{ |
for (int i = 0; i < engineChannels.size(); i++) { |
382 |
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
383 |
Event* pEvent; |
ProcessEvents(engineChannels[i], Samples); |
384 |
while (true) { |
} |
385 |
// get next event from input event queue |
|
386 |
if (!(pEvent = eventQueueReader.pop())) break; |
// render all 'normal', active voices on all engine channels |
387 |
// if younger event reached, ignore that and all subsequent ones for now |
for (int i = 0; i < engineChannels.size(); i++) { |
388 |
if (pEvent->FragmentPos() >= Samples) { |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
389 |
eventQueueReader--; |
RenderActiveVoices(engineChannels[i], Samples); |
|
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
|
|
pEvent->ResetFragmentPos(); |
|
|
break; |
|
|
} |
|
|
// copy event to internal event list |
|
|
if (pEvents->poolIsEmpty()) { |
|
|
dmsg(1,("Event pool emtpy!\n")); |
|
|
break; |
|
|
} |
|
|
*pEvents->allocAppend() = *pEvent; |
|
|
} |
|
|
eventQueueReader.free(); // free all copied events from input queue |
|
390 |
} |
} |
391 |
|
|
392 |
|
// now that all ordinary voices on ALL engine channels are rendered, render new stolen voices |
393 |
|
RenderStolenVoices(Samples); |
394 |
|
|
395 |
|
// handle audio routing for engine channels with FX sends |
396 |
|
for (int i = 0; i < engineChannels.size(); i++) { |
397 |
|
if (engineChannels[i]->fxSends.empty()) continue; // ignore if no FX sends |
398 |
|
RouteAudio(engineChannels[i], Samples); |
399 |
|
} |
400 |
|
|
401 |
|
// handle cleanup on all engine channels for the next audio fragment |
402 |
|
for (int i = 0; i < engineChannels.size(); i++) { |
403 |
|
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
404 |
|
PostProcess(engineChannels[i]); |
405 |
|
} |
406 |
|
|
407 |
|
|
408 |
|
// empty the engine's event list for the next audio fragment |
409 |
|
ClearEventLists(); |
410 |
|
|
411 |
|
// reset voice stealing for the next audio fragment |
412 |
|
pVoiceStealingQueue->clear(); |
413 |
|
|
414 |
|
// just some statistics about this engine instance |
415 |
|
ActiveVoiceCount = ActiveVoiceCountTemp; |
416 |
|
if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
417 |
|
|
418 |
|
FrameTime += Samples; |
419 |
|
|
420 |
|
return 0; |
421 |
|
} |
422 |
|
|
423 |
|
/** |
424 |
|
* Dispatch and handle all events in this audio fragment for the given |
425 |
|
* engine channel. |
426 |
|
* |
427 |
|
* @param pEngineChannel - engine channel on which events should be |
428 |
|
* processed |
429 |
|
* @param Samples - amount of sample points to be processed in |
430 |
|
* this audio fragment cycle |
431 |
|
*/ |
432 |
|
void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) { |
433 |
|
// get all events from the engine channels's input event queue which belong to the current fragment |
434 |
|
// (these are the common events like NoteOn, NoteOff, ControlChange, etc.) |
435 |
|
pEngineChannel->ImportEvents(Samples); |
436 |
|
|
437 |
// process events |
// process events |
438 |
{ |
{ |
439 |
RTList<Event>::Iterator itEvent = pEvents->first(); |
RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first(); |
440 |
RTList<Event>::Iterator end = pEvents->end(); |
RTList<Event>::Iterator end = pEngineChannel->pEvents->end(); |
441 |
for (; itEvent != end; ++itEvent) { |
for (; itEvent != end; ++itEvent) { |
442 |
switch (itEvent->Type) { |
switch (itEvent->Type) { |
443 |
case Event::type_note_on: |
case Event::type_note_on: |
444 |
dmsg(5,("Engine: Note on received\n")); |
dmsg(5,("Engine: Note on received\n")); |
445 |
ProcessNoteOn(itEvent); |
ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent); |
446 |
break; |
break; |
447 |
case Event::type_note_off: |
case Event::type_note_off: |
448 |
dmsg(5,("Engine: Note off received\n")); |
dmsg(5,("Engine: Note off received\n")); |
449 |
ProcessNoteOff(itEvent); |
ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent); |
450 |
break; |
break; |
451 |
case Event::type_control_change: |
case Event::type_control_change: |
452 |
dmsg(5,("Engine: MIDI CC received\n")); |
dmsg(5,("Engine: MIDI CC received\n")); |
453 |
ProcessControlChange(itEvent); |
ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent); |
454 |
break; |
break; |
455 |
case Event::type_pitchbend: |
case Event::type_pitchbend: |
456 |
dmsg(5,("Engine: Pitchbend received\n")); |
dmsg(5,("Engine: Pitchbend received\n")); |
457 |
ProcessPitchbend(itEvent); |
ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent); |
|
break; |
|
|
case Event::type_sysex: |
|
|
dmsg(5,("Engine: Sysex received\n")); |
|
|
ProcessSysex(itEvent); |
|
458 |
break; |
break; |
459 |
} |
} |
460 |
} |
} |
461 |
} |
} |
462 |
|
|
463 |
|
// reset voice stealing for the next engine channel (or next audio fragment) |
464 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
465 |
|
itLastStolenVoiceGlobally = RTList<Voice>::Iterator(); |
466 |
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
467 |
|
iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); |
468 |
|
pLastStolenChannel = NULL; |
469 |
|
} |
470 |
|
|
471 |
int active_voices = 0; |
/** |
472 |
|
* Render all 'normal' voices (that is voices which were not stolen in |
473 |
// render audio from all active voices |
* this fragment) on the given engine channel. |
474 |
{ |
* |
475 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
* @param pEngineChannel - engine channel on which audio should be |
476 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
* rendered |
477 |
while (iuiKey != end) { // iterate through all active keys |
* @param Samples - amount of sample points to be rendered in |
478 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
* this audio fragment cycle |
479 |
++iuiKey; |
*/ |
480 |
|
void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) { |
481 |
|
#if !CONFIG_PROCESS_MUTED_CHANNELS |
482 |
|
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
483 |
|
#endif |
484 |
|
|
485 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
486 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
487 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
while (iuiKey != end) { // iterate through all active keys |
488 |
// now render current voice |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
489 |
itVoice->Render(Samples); |
++iuiKey; |
490 |
if (itVoice->IsActive()) active_voices++; // still active |
|
491 |
else { // voice reached end, is now inactive |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
492 |
FreeVoice(itVoice); // remove voice from the list of active voices |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
493 |
} |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
494 |
|
// now render current voice |
495 |
|
itVoice->Render(Samples); |
496 |
|
if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
497 |
|
else { // voice reached end, is now inactive |
498 |
|
FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices |
499 |
} |
} |
500 |
} |
} |
501 |
} |
} |
502 |
|
} |
503 |
|
|
504 |
|
/** |
505 |
|
* Render all stolen voices (only voices which were stolen in this |
506 |
|
* fragment) on the given engine channel. Stolen voices are rendered |
507 |
|
* after all normal voices have been rendered; this is needed to render |
508 |
|
* audio of those voices which were selected for voice stealing until |
509 |
|
* the point were the stealing (that is the take over of the voice) |
510 |
|
* actually happened. |
511 |
|
* |
512 |
|
* @param pEngineChannel - engine channel on which audio should be |
513 |
|
* rendered |
514 |
|
* @param Samples - amount of sample points to be rendered in |
515 |
|
* this audio fragment cycle |
516 |
|
*/ |
517 |
|
void Engine::RenderStolenVoices(uint Samples) { |
518 |
|
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
519 |
|
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
520 |
|
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
521 |
|
EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel; |
522 |
|
Pool<Voice>::Iterator itNewVoice = |
523 |
|
LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false, false); |
524 |
|
if (itNewVoice) { |
525 |
|
itNewVoice->Render(Samples); |
526 |
|
if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
527 |
|
else { // voice reached end, is now inactive |
528 |
|
FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices |
529 |
|
} |
530 |
|
} |
531 |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
532 |
|
|
533 |
|
// we need to clear the key's event list explicitly here in case key was never active |
534 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key]; |
535 |
|
pKey->VoiceTheftsQueued--; |
536 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear(); |
537 |
|
} |
538 |
|
} |
539 |
|
|
540 |
// now render all postponed voices from voice stealing |
/** |
541 |
|
* Will be called in case the respective engine channel sports FX send |
542 |
|
* channels. In this particular case, engine channel local buffers are |
543 |
|
* used to render and mix all voices to. This method is responsible for |
544 |
|
* copying the audio data from those local buffers to the master audio |
545 |
|
* output channels as well as to the FX send audio output channels with |
546 |
|
* their respective FX send levels. |
547 |
|
* |
548 |
|
* @param pEngineChannel - engine channel from which audio should be |
549 |
|
* routed |
550 |
|
* @param Samples - amount of sample points to be routed in |
551 |
|
* this audio fragment cycle |
552 |
|
*/ |
553 |
|
void Engine::RouteAudio(EngineChannel* pEngineChannel, uint Samples) { |
554 |
|
// route master signal |
555 |
{ |
{ |
556 |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
AudioChannel* pDstL = pAudioOutputDevice->Channel(pEngineChannel->AudioDeviceChannelLeft); |
557 |
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
AudioChannel* pDstR = pAudioOutputDevice->Channel(pEngineChannel->AudioDeviceChannelRight); |
558 |
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
pEngineChannel->pChannelLeft->CopyTo(pDstL, Samples); |
559 |
Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
pEngineChannel->pChannelRight->CopyTo(pDstR, Samples); |
560 |
if (itNewVoice) { |
} |
561 |
for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) { |
// route FX send signal |
562 |
itNewVoice->Render(Samples); |
{ |
563 |
if (itNewVoice->IsActive()) active_voices++; // still active |
for (int iFxSend = 0; iFxSend < pEngineChannel->GetFxSendCount(); iFxSend++) { |
564 |
else { // voice reached end, is now inactive |
FxSend* pFxSend = pEngineChannel->GetFxSend(iFxSend); |
565 |
FreeVoice(itNewVoice); // remove voice from the list of active voices |
// left channel |
566 |
} |
const int iDstL = pFxSend->DestinationChannel(0); |
567 |
} |
if (iDstL < 0) { |
568 |
|
dmsg(1,("Engine::RouteAudio() Error: invalid FX send (L) destination channel")); |
569 |
|
} else { |
570 |
|
AudioChannel* pDstL = pAudioOutputDevice->Channel(iDstL); |
571 |
|
if (!pDstL) { |
572 |
|
dmsg(1,("Engine::RouteAudio() Error: invalid FX send (L) destination channel")); |
573 |
|
} else pEngineChannel->pChannelLeft->CopyTo(pDstL, Samples, pFxSend->Level()); |
574 |
|
} |
575 |
|
// right channel |
576 |
|
const int iDstR = pFxSend->DestinationChannel(1); |
577 |
|
if (iDstR < 0) { |
578 |
|
dmsg(1,("Engine::RouteAudio() Error: invalid FX send (R) destination channel")); |
579 |
|
} else { |
580 |
|
AudioChannel* pDstR = pAudioOutputDevice->Channel(iDstR); |
581 |
|
if (!pDstR) { |
582 |
|
dmsg(1,("Engine::RouteAudio() Error: invalid FX send (R) destination channel")); |
583 |
|
} else pEngineChannel->pChannelRight->CopyTo(pDstR, Samples, pFxSend->Level()); |
584 |
} |
} |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
|
585 |
} |
} |
586 |
} |
} |
587 |
// reset voice stealing for the new fragment |
// reset buffers with silence (zero out) for the next audio cycle |
588 |
pVoiceStealingQueue->clear(); |
pEngineChannel->pChannelLeft->Clear(); |
589 |
itLastStolenVoice = RTList<Voice>::Iterator(); |
pEngineChannel->pChannelRight->Clear(); |
590 |
iuiLastStolenKey = RTList<uint>::Iterator(); |
} |
|
|
|
591 |
|
|
592 |
|
/** |
593 |
|
* Free all keys which have turned inactive in this audio fragment, from |
594 |
|
* the list of active keys and clear all event lists on that engine |
595 |
|
* channel. |
596 |
|
* |
597 |
|
* @param pEngineChannel - engine channel to cleanup |
598 |
|
*/ |
599 |
|
void Engine::PostProcess(EngineChannel* pEngineChannel) { |
600 |
// free all keys which have no active voices left |
// free all keys which have no active voices left |
601 |
{ |
{ |
602 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
603 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
604 |
while (iuiKey != end) { // iterate through all active keys |
while (iuiKey != end) { // iterate through all active keys |
605 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
606 |
++iuiKey; |
++iuiKey; |
607 |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey); |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey); |
608 |
#if DEVMODE |
#if CONFIG_DEVMODE |
609 |
else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
else { // just a sanity check for debugging |
610 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
611 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
612 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
615 |
} |
} |
616 |
} |
} |
617 |
} |
} |
618 |
#endif // DEVMODE |
#endif // CONFIG_DEVMODE |
619 |
} |
} |
620 |
} |
} |
621 |
|
|
622 |
|
// empty the engine channel's own event lists |
623 |
// write that to the disk thread class so that it can print it |
pEngineChannel->ClearEventLists(); |
|
// on the console for debugging purposes |
|
|
ActiveVoiceCount = active_voices; |
|
|
if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
|
|
|
|
|
|
|
|
return 0; |
|
|
} |
|
|
|
|
|
/** |
|
|
* Will be called by the MIDIIn Thread to let the audio thread trigger a new |
|
|
* voice for the given key. |
|
|
* |
|
|
* @param Key - MIDI key number of the triggered key |
|
|
* @param Velocity - MIDI velocity value of the triggered key |
|
|
*/ |
|
|
void Engine::SendNoteOn(uint8_t Key, uint8_t Velocity) { |
|
|
Event event = pEventGenerator->CreateEvent(); |
|
|
event.Type = Event::type_note_on; |
|
|
event.Param.Note.Key = Key; |
|
|
event.Param.Note.Velocity = Velocity; |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
|
|
else dmsg(1,("Engine: Input event queue full!")); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Will be called by the MIDIIn Thread to signal the audio thread to release |
|
|
* voice(s) on the given key. |
|
|
* |
|
|
* @param Key - MIDI key number of the released key |
|
|
* @param Velocity - MIDI release velocity value of the released key |
|
|
*/ |
|
|
void Engine::SendNoteOff(uint8_t Key, uint8_t Velocity) { |
|
|
Event event = pEventGenerator->CreateEvent(); |
|
|
event.Type = Event::type_note_off; |
|
|
event.Param.Note.Key = Key; |
|
|
event.Param.Note.Velocity = Velocity; |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
|
|
else dmsg(1,("Engine: Input event queue full!")); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Will be called by the MIDIIn Thread to signal the audio thread to change |
|
|
* the pitch value for all voices. |
|
|
* |
|
|
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
|
|
*/ |
|
|
void Engine::SendPitchbend(int Pitch) { |
|
|
Event event = pEventGenerator->CreateEvent(); |
|
|
event.Type = Event::type_pitchbend; |
|
|
event.Param.Pitch.Pitch = Pitch; |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
|
|
else dmsg(1,("Engine: Input event queue full!")); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Will be called by the MIDIIn Thread to signal the audio thread that a |
|
|
* continuous controller value has changed. |
|
|
* |
|
|
* @param Controller - MIDI controller number of the occured control change |
|
|
* @param Value - value of the control change |
|
|
*/ |
|
|
void Engine::SendControlChange(uint8_t Controller, uint8_t Value) { |
|
|
Event event = pEventGenerator->CreateEvent(); |
|
|
event.Type = Event::type_control_change; |
|
|
event.Param.CC.Controller = Controller; |
|
|
event.Param.CC.Value = Value; |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
|
|
else dmsg(1,("Engine: Input event queue full!")); |
|
624 |
} |
} |
625 |
|
|
626 |
/** |
/** |
634 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
635 |
event.Type = Event::type_sysex; |
event.Type = Event::type_sysex; |
636 |
event.Param.Sysex.Size = Size; |
event.Param.Sysex.Size = Size; |
637 |
|
event.pEngineChannel = NULL; // as Engine global event |
638 |
if (pEventQueue->write_space() > 0) { |
if (pEventQueue->write_space() > 0) { |
639 |
if (pSysexBuffer->write_space() >= Size) { |
if (pSysexBuffer->write_space() >= Size) { |
640 |
// copy sysex data to input buffer |
// copy sysex data to input buffer |
650 |
// finally place sysex event into input event queue |
// finally place sysex event into input event queue |
651 |
pEventQueue->push(&event); |
pEventQueue->push(&event); |
652 |
} |
} |
653 |
else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,SYSEX_BUFFER_SIZE)); |
else dmsg(1,("Engine: Sysex message too large (%d byte) for input buffer (%d byte)!",Size,CONFIG_SYSEX_BUFFER_SIZE)); |
654 |
} |
} |
655 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
656 |
} |
} |
658 |
/** |
/** |
659 |
* Assigns and triggers a new voice for the respective MIDI key. |
* Assigns and triggers a new voice for the respective MIDI key. |
660 |
* |
* |
661 |
|
* @param pEngineChannel - engine channel on which this event occured on |
662 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
663 |
*/ |
*/ |
664 |
void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) { |
void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
665 |
|
#if !CONFIG_PROCESS_MUTED_CHANNELS |
666 |
|
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
667 |
|
#endif |
668 |
|
|
669 |
const int key = itNoteOnEvent->Param.Note.Key; |
const int key = itNoteOnEvent->Param.Note.Key; |
670 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; |
671 |
|
|
672 |
// Change key dimension value if key is in keyswitching area |
// move note on event to the key's own event list |
673 |
if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high) |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
|
CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) / |
|
|
(pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); |
|
674 |
|
|
675 |
midi_key_info_t* pKey = &pMIDIKeyInfo[key]; |
// if Solo Mode then kill all already active voices |
676 |
|
if (pEngineChannel->SoloMode) { |
677 |
|
Pool<uint>::Iterator itYoungestKey = pEngineChannel->pActiveKeys->last(); |
678 |
|
if (itYoungestKey) { |
679 |
|
const int iYoungestKey = *itYoungestKey; |
680 |
|
const midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[iYoungestKey]; |
681 |
|
if (pOtherKey->Active) { |
682 |
|
// get final portamento position of currently active voice |
683 |
|
if (pEngineChannel->PortamentoMode) { |
684 |
|
RTList<Voice>::Iterator itVoice = pOtherKey->pActiveVoices->last(); |
685 |
|
if (itVoice) itVoice->UpdatePortamentoPos(itNoteOnEventOnKeyList); |
686 |
|
} |
687 |
|
// kill all voices on the (other) key |
688 |
|
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
689 |
|
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
690 |
|
for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
691 |
|
if (itVoiceToBeKilled->Type != Voice::type_release_trigger) |
692 |
|
itVoiceToBeKilled->Kill(itNoteOnEventOnKeyList); |
693 |
|
} |
694 |
|
} |
695 |
|
} |
696 |
|
// set this key as 'currently active solo key' |
697 |
|
pEngineChannel->SoloKey = key; |
698 |
|
} |
699 |
|
|
700 |
|
// Change key dimension value if key is in keyswitching area |
701 |
|
{ |
702 |
|
const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument; |
703 |
|
if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high) |
704 |
|
pEngineChannel->CurrentKeyDimension = float(key - pInstrument->DimensionKeyRange.low) / |
705 |
|
(pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); |
706 |
|
} |
707 |
|
|
708 |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
709 |
|
pKey->Velocity = itNoteOnEventOnKeyList->Param.Note.Velocity; |
710 |
|
pKey->NoteOnTime = FrameTime + itNoteOnEventOnKeyList->FragmentPos(); // will be used to calculate note length |
711 |
|
|
712 |
// cancel release process of voices on this key if needed |
// cancel release process of voices on this key if needed |
713 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
714 |
RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); |
RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); |
715 |
if (itCancelReleaseEvent) { |
if (itCancelReleaseEvent) { |
716 |
*itCancelReleaseEvent = *itNoteOnEvent; // copy event |
*itCancelReleaseEvent = *itNoteOnEventOnKeyList; // copy event |
717 |
itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type |
itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type |
718 |
} |
} |
719 |
else dmsg(1,("Event pool emtpy!\n")); |
else dmsg(1,("Event pool emtpy!\n")); |
720 |
} |
} |
721 |
|
|
722 |
// move note on event to the key's own event list |
// allocate and trigger new voice(s) for the key |
723 |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
{ |
724 |
|
// first, get total amount of required voices (dependant on amount of layers) |
725 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key); |
726 |
|
if (pRegion) { |
727 |
|
int voicesRequired = pRegion->Layers; |
728 |
|
// now launch the required amount of voices |
729 |
|
for (int i = 0; i < voicesRequired; i++) |
730 |
|
LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true, true); |
731 |
|
} |
732 |
|
} |
733 |
|
|
734 |
|
// if neither a voice was spawned or postponed then remove note on event from key again |
735 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) |
736 |
|
pKey->pEvents->free(itNoteOnEventOnKeyList); |
737 |
|
|
738 |
// allocate and trigger a new voice for the key |
if (!pEngineChannel->SoloMode || pEngineChannel->PortamentoPos < 0.0f) pEngineChannel->PortamentoPos = (float) key; |
739 |
LaunchVoice(itNoteOnEventOnKeyList, 0, false, true); |
pKey->RoundRobinIndex++; |
740 |
} |
} |
741 |
|
|
742 |
/** |
/** |
745 |
* sustain pedal will be released or voice turned inactive by itself (e.g. |
* sustain pedal will be released or voice turned inactive by itself (e.g. |
746 |
* due to completion of sample playback). |
* due to completion of sample playback). |
747 |
* |
* |
748 |
|
* @param pEngineChannel - engine channel on which this event occured on |
749 |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
750 |
*/ |
*/ |
751 |
void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) { |
void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) { |
752 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
#if !CONFIG_PROCESS_MUTED_CHANNELS |
753 |
|
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
754 |
|
#endif |
755 |
|
|
756 |
|
const int iKey = itNoteOffEvent->Param.Note.Key; |
757 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey]; |
758 |
pKey->KeyPressed = false; // the MIDI key was now released |
pKey->KeyPressed = false; // the MIDI key was now released |
759 |
|
|
|
// release voices on this key if needed |
|
|
if (pKey->Active && !SustainPedal) { |
|
|
itNoteOffEvent->Type = Event::type_release; // transform event type |
|
|
} |
|
|
|
|
760 |
// move event to the key's own event list |
// move event to the key's own event list |
761 |
RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); |
RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); |
762 |
|
|
763 |
// spawn release triggered voice(s) if needed |
bool bShouldRelease = pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEventOnKeyList->Param.Note.Key); |
764 |
if (pKey->ReleaseTrigger) { |
|
765 |
LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
// in case Solo Mode is enabled, kill all voices on this key and respawn a voice on the highest pressed key (if any) |
766 |
pKey->ReleaseTrigger = false; |
if (pEngineChannel->SoloMode) { //TODO: this feels like too much code just for handling solo mode :P |
767 |
|
bool bOtherKeysPressed = false; |
768 |
|
if (iKey == pEngineChannel->SoloKey) { |
769 |
|
pEngineChannel->SoloKey = -1; |
770 |
|
// if there's still a key pressed down, respawn a voice (group) on the highest key |
771 |
|
for (int i = 127; i > 0; i--) { |
772 |
|
midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[i]; |
773 |
|
if (pOtherKey->KeyPressed) { |
774 |
|
bOtherKeysPressed = true; |
775 |
|
// make the other key the new 'currently active solo key' |
776 |
|
pEngineChannel->SoloKey = i; |
777 |
|
// get final portamento position of currently active voice |
778 |
|
if (pEngineChannel->PortamentoMode) { |
779 |
|
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
780 |
|
if (itVoice) itVoice->UpdatePortamentoPos(itNoteOffEventOnKeyList); |
781 |
|
} |
782 |
|
// create a pseudo note on event |
783 |
|
RTList<Event>::Iterator itPseudoNoteOnEvent = pOtherKey->pEvents->allocAppend(); |
784 |
|
if (itPseudoNoteOnEvent) { |
785 |
|
// copy event |
786 |
|
*itPseudoNoteOnEvent = *itNoteOffEventOnKeyList; |
787 |
|
// transform event to a note on event |
788 |
|
itPseudoNoteOnEvent->Type = Event::type_note_on; |
789 |
|
itPseudoNoteOnEvent->Param.Note.Key = i; |
790 |
|
itPseudoNoteOnEvent->Param.Note.Velocity = pOtherKey->Velocity; |
791 |
|
// allocate and trigger new voice(s) for the other key |
792 |
|
{ |
793 |
|
// first, get total amount of required voices (dependant on amount of layers) |
794 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(i); |
795 |
|
if (pRegion) { |
796 |
|
int voicesRequired = pRegion->Layers; |
797 |
|
// now launch the required amount of voices |
798 |
|
for (int iLayer = 0; iLayer < voicesRequired; iLayer++) |
799 |
|
LaunchVoice(pEngineChannel, itPseudoNoteOnEvent, iLayer, false, true, false); |
800 |
|
} |
801 |
|
} |
802 |
|
// if neither a voice was spawned or postponed then remove note on event from key again |
803 |
|
if (!pOtherKey->Active && !pOtherKey->VoiceTheftsQueued) |
804 |
|
pOtherKey->pEvents->free(itPseudoNoteOnEvent); |
805 |
|
|
806 |
|
} else dmsg(1,("Could not respawn voice, no free event left\n")); |
807 |
|
break; // done |
808 |
|
} |
809 |
|
} |
810 |
|
} |
811 |
|
if (bOtherKeysPressed) { |
812 |
|
if (pKey->Active) { // kill all voices on this key |
813 |
|
bShouldRelease = false; // no need to release, as we kill it here |
814 |
|
RTList<Voice>::Iterator itVoiceToBeKilled = pKey->pActiveVoices->first(); |
815 |
|
RTList<Voice>::Iterator end = pKey->pActiveVoices->end(); |
816 |
|
for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
817 |
|
if (itVoiceToBeKilled->Type != Voice::type_release_trigger) |
818 |
|
itVoiceToBeKilled->Kill(itNoteOffEventOnKeyList); |
819 |
|
} |
820 |
|
} |
821 |
|
} else pEngineChannel->PortamentoPos = -1.0f; |
822 |
|
} |
823 |
|
|
824 |
|
// if no solo mode (the usual case) or if solo mode and no other key pressed, then release voices on this key if needed |
825 |
|
if (bShouldRelease) { |
826 |
|
itNoteOffEventOnKeyList->Type = Event::type_release; // transform event type |
827 |
|
|
828 |
|
// spawn release triggered voice(s) if needed |
829 |
|
if (pKey->ReleaseTrigger) { |
830 |
|
// first, get total amount of required voices (dependant on amount of layers) |
831 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key); |
832 |
|
if (pRegion) { |
833 |
|
int voicesRequired = pRegion->Layers; |
834 |
|
|
835 |
|
// MIDI note-on velocity is used instead of note-off velocity |
836 |
|
itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity; |
837 |
|
|
838 |
|
// now launch the required amount of voices |
839 |
|
for (int i = 0; i < voicesRequired; i++) |
840 |
|
LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
841 |
|
} |
842 |
|
pKey->ReleaseTrigger = false; |
843 |
|
} |
844 |
} |
} |
845 |
|
|
846 |
|
// if neither a voice was spawned or postponed on this key then remove note off event from key again |
847 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) |
848 |
|
pKey->pEvents->free(itNoteOffEventOnKeyList); |
849 |
} |
} |
850 |
|
|
851 |
/** |
/** |
852 |
* Moves pitchbend event from the general (input) event list to the pitch |
* Moves pitchbend event from the general (input) event list to the engine |
853 |
* event list. |
* channel's event list. It will actually processed later by the |
854 |
|
* respective voice. |
855 |
* |
* |
856 |
|
* @param pEngineChannel - engine channel on which this event occured on |
857 |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
858 |
*/ |
*/ |
859 |
void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) { |
void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
860 |
this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
|
itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]); |
|
861 |
} |
} |
862 |
|
|
863 |
/** |
/** |
865 |
* called by the ProcessNoteOn() method and by the voices itself |
* called by the ProcessNoteOn() method and by the voices itself |
866 |
* (e.g. to spawn further voices on the same key for layered sounds). |
* (e.g. to spawn further voices on the same key for layered sounds). |
867 |
* |
* |
868 |
|
* @param pEngineChannel - engine channel on which this event occured on |
869 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
870 |
* @param iLayer - layer index for the new voice (optional - only |
* @param iLayer - layer index for the new voice (optional - only |
871 |
* in case of layered sounds of course) |
* in case of layered sounds of course) |
874 |
* @param VoiceStealing - if voice stealing should be performed |
* @param VoiceStealing - if voice stealing should be performed |
875 |
* when there is no free voice |
* when there is no free voice |
876 |
* (optional, default = true) |
* (optional, default = true) |
877 |
|
* @param HandleKeyGroupConflicts - if voices should be killed due to a |
878 |
|
* key group conflict |
879 |
* @returns pointer to new voice or NULL if there was no free voice or |
* @returns pointer to new voice or NULL if there was no free voice or |
880 |
* if the voice wasn't triggered (for example when no region is |
* if the voice wasn't triggered (for example when no region is |
881 |
* defined for the given key). |
* defined for the given key). |
882 |
*/ |
*/ |
883 |
Pool<Voice>::Iterator Engine::LaunchVoice(Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) { |
Pool<Voice>::Iterator Engine::LaunchVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing, bool HandleKeyGroupConflicts) { |
884 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
int MIDIKey = itNoteOnEvent->Param.Note.Key; |
885 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[MIDIKey]; |
886 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(MIDIKey); |
887 |
|
|
888 |
|
// if nothing defined for this key |
889 |
|
if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do |
890 |
|
|
891 |
|
// only mark the first voice of a layered voice (group) to be in a |
892 |
|
// key group, so the layered voices won't kill each other |
893 |
|
int iKeyGroup = (iLayer == 0 && !ReleaseTriggerVoice) ? pRegion->KeyGroup : 0; |
894 |
|
|
895 |
|
// handle key group (a.k.a. exclusive group) conflicts |
896 |
|
if (HandleKeyGroupConflicts) { |
897 |
|
if (iKeyGroup) { // if this voice / key belongs to a key group |
898 |
|
uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[iKeyGroup]; |
899 |
|
if (*ppKeyGroup) { // if there's already an active key in that key group |
900 |
|
midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup]; |
901 |
|
// kill all voices on the (other) key |
902 |
|
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
903 |
|
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
904 |
|
for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
905 |
|
if (itVoiceToBeKilled->Type != Voice::type_release_trigger) { |
906 |
|
itVoiceToBeKilled->Kill(itNoteOnEvent); |
907 |
|
--VoiceSpawnsLeft; //FIXME: just a hack, we should better check in StealVoice() if the voice was killed due to key conflict |
908 |
|
} |
909 |
|
} |
910 |
|
} |
911 |
|
} |
912 |
|
} |
913 |
|
|
914 |
|
Voice::type_t VoiceType = Voice::type_normal; |
915 |
|
|
916 |
|
// get current dimension values to select the right dimension region |
917 |
|
//TODO: for stolen voices this dimension region selection block is processed twice, this should be changed |
918 |
|
//FIXME: controller values for selecting the dimension region here are currently not sample accurate |
919 |
|
uint DimValues[8] = { 0 }; |
920 |
|
for (int i = pRegion->Dimensions - 1; i >= 0; i--) { |
921 |
|
switch (pRegion->pDimensionDefinitions[i].dimension) { |
922 |
|
case ::gig::dimension_samplechannel: |
923 |
|
DimValues[i] = 0; //TODO: we currently ignore this dimension |
924 |
|
break; |
925 |
|
case ::gig::dimension_layer: |
926 |
|
DimValues[i] = iLayer; |
927 |
|
break; |
928 |
|
case ::gig::dimension_velocity: |
929 |
|
DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
930 |
|
break; |
931 |
|
case ::gig::dimension_channelaftertouch: |
932 |
|
DimValues[i] = pEngineChannel->ControllerTable[128]; |
933 |
|
break; |
934 |
|
case ::gig::dimension_releasetrigger: |
935 |
|
VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal; |
936 |
|
DimValues[i] = (uint) ReleaseTriggerVoice; |
937 |
|
break; |
938 |
|
case ::gig::dimension_keyboard: |
939 |
|
DimValues[i] = (uint) (pEngineChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones); |
940 |
|
break; |
941 |
|
case ::gig::dimension_roundrobin: |
942 |
|
DimValues[i] = (uint) pEngineChannel->pMIDIKeyInfo[MIDIKey].RoundRobinIndex; // incremented for each note on |
943 |
|
break; |
944 |
|
case ::gig::dimension_random: |
945 |
|
RandomSeed = RandomSeed * 1103515245 + 12345; // classic pseudo random number generator |
946 |
|
DimValues[i] = (uint) RandomSeed >> (32 - pRegion->pDimensionDefinitions[i].bits); // highest bits are most random |
947 |
|
break; |
948 |
|
case ::gig::dimension_modwheel: |
949 |
|
DimValues[i] = pEngineChannel->ControllerTable[1]; |
950 |
|
break; |
951 |
|
case ::gig::dimension_breath: |
952 |
|
DimValues[i] = pEngineChannel->ControllerTable[2]; |
953 |
|
break; |
954 |
|
case ::gig::dimension_foot: |
955 |
|
DimValues[i] = pEngineChannel->ControllerTable[4]; |
956 |
|
break; |
957 |
|
case ::gig::dimension_portamentotime: |
958 |
|
DimValues[i] = pEngineChannel->ControllerTable[5]; |
959 |
|
break; |
960 |
|
case ::gig::dimension_effect1: |
961 |
|
DimValues[i] = pEngineChannel->ControllerTable[12]; |
962 |
|
break; |
963 |
|
case ::gig::dimension_effect2: |
964 |
|
DimValues[i] = pEngineChannel->ControllerTable[13]; |
965 |
|
break; |
966 |
|
case ::gig::dimension_genpurpose1: |
967 |
|
DimValues[i] = pEngineChannel->ControllerTable[16]; |
968 |
|
break; |
969 |
|
case ::gig::dimension_genpurpose2: |
970 |
|
DimValues[i] = pEngineChannel->ControllerTable[17]; |
971 |
|
break; |
972 |
|
case ::gig::dimension_genpurpose3: |
973 |
|
DimValues[i] = pEngineChannel->ControllerTable[18]; |
974 |
|
break; |
975 |
|
case ::gig::dimension_genpurpose4: |
976 |
|
DimValues[i] = pEngineChannel->ControllerTable[19]; |
977 |
|
break; |
978 |
|
case ::gig::dimension_sustainpedal: |
979 |
|
DimValues[i] = pEngineChannel->ControllerTable[64]; |
980 |
|
break; |
981 |
|
case ::gig::dimension_portamento: |
982 |
|
DimValues[i] = pEngineChannel->ControllerTable[65]; |
983 |
|
break; |
984 |
|
case ::gig::dimension_sostenutopedal: |
985 |
|
DimValues[i] = pEngineChannel->ControllerTable[66]; |
986 |
|
break; |
987 |
|
case ::gig::dimension_softpedal: |
988 |
|
DimValues[i] = pEngineChannel->ControllerTable[67]; |
989 |
|
break; |
990 |
|
case ::gig::dimension_genpurpose5: |
991 |
|
DimValues[i] = pEngineChannel->ControllerTable[80]; |
992 |
|
break; |
993 |
|
case ::gig::dimension_genpurpose6: |
994 |
|
DimValues[i] = pEngineChannel->ControllerTable[81]; |
995 |
|
break; |
996 |
|
case ::gig::dimension_genpurpose7: |
997 |
|
DimValues[i] = pEngineChannel->ControllerTable[82]; |
998 |
|
break; |
999 |
|
case ::gig::dimension_genpurpose8: |
1000 |
|
DimValues[i] = pEngineChannel->ControllerTable[83]; |
1001 |
|
break; |
1002 |
|
case ::gig::dimension_effect1depth: |
1003 |
|
DimValues[i] = pEngineChannel->ControllerTable[91]; |
1004 |
|
break; |
1005 |
|
case ::gig::dimension_effect2depth: |
1006 |
|
DimValues[i] = pEngineChannel->ControllerTable[92]; |
1007 |
|
break; |
1008 |
|
case ::gig::dimension_effect3depth: |
1009 |
|
DimValues[i] = pEngineChannel->ControllerTable[93]; |
1010 |
|
break; |
1011 |
|
case ::gig::dimension_effect4depth: |
1012 |
|
DimValues[i] = pEngineChannel->ControllerTable[94]; |
1013 |
|
break; |
1014 |
|
case ::gig::dimension_effect5depth: |
1015 |
|
DimValues[i] = pEngineChannel->ControllerTable[95]; |
1016 |
|
break; |
1017 |
|
case ::gig::dimension_none: |
1018 |
|
std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush; |
1019 |
|
break; |
1020 |
|
default: |
1021 |
|
std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush; |
1022 |
|
} |
1023 |
|
} |
1024 |
|
::gig::DimensionRegion* pDimRgn = pRegion->GetDimensionRegionByValue(DimValues); |
1025 |
|
|
1026 |
|
// no need to continue if sample is silent |
1027 |
|
if (!pDimRgn->pSample || !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator(); |
1028 |
|
|
1029 |
// allocate a new voice for the key |
// allocate a new voice for the key |
1030 |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
1031 |
if (itNewVoice) { |
if (itNewVoice) { |
1032 |
// launch the new voice |
// launch the new voice |
1033 |
if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) { |
if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pDimRgn, VoiceType, iKeyGroup) < 0) { |
1034 |
dmsg(4,("Voice not triggered\n")); |
dmsg(4,("Voice not triggered\n")); |
1035 |
pKey->pActiveVoices->free(itNewVoice); |
pKey->pActiveVoices->free(itNewVoice); |
1036 |
} |
} |
1037 |
else { // on success |
else { // on success |
1038 |
uint** ppKeyGroup = NULL; |
--VoiceSpawnsLeft; |
|
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
|
|
ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup]; |
|
|
if (*ppKeyGroup) { // if there's already an active key in that key group |
|
|
midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup]; |
|
|
// kill all voices on the (other) key |
|
|
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
|
|
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
|
|
for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { |
|
|
if (itVoiceToBeKilled->Type != Voice::type_release_trigger) itVoiceToBeKilled->Kill(itNoteOnEvent); |
|
|
} |
|
|
} |
|
|
} |
|
1039 |
if (!pKey->Active) { // mark as active key |
if (!pKey->Active) { // mark as active key |
1040 |
pKey->Active = true; |
pKey->Active = true; |
1041 |
pKey->itSelf = pActiveKeys->allocAppend(); |
pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend(); |
1042 |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
1043 |
} |
} |
1044 |
if (itNewVoice->KeyGroup) { |
if (itNewVoice->KeyGroup) { |
1045 |
|
uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; |
1046 |
*ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group |
*ppKeyGroup = &*pKey->itSelf; // put key as the (new) active key to its key group |
1047 |
} |
} |
1048 |
if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s) |
if (itNewVoice->Type == Voice::type_release_trigger_required) pKey->ReleaseTrigger = true; // mark key for the need of release triggered voice(s) |
1050 |
} |
} |
1051 |
} |
} |
1052 |
else if (VoiceStealing) { |
else if (VoiceStealing) { |
1053 |
// first, get total amount of required voices (dependant on amount of layers) |
// try to steal one voice |
1054 |
::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
int result = StealVoice(pEngineChannel, itNoteOnEvent); |
1055 |
if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed |
if (!result) { // voice stolen successfully |
1056 |
int voicesRequired = pRegion->Layers; |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
1057 |
|
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
1058 |
// now steal the (remaining) amount of voices |
if (itStealEvent) { |
1059 |
for (int i = iLayer; i < voicesRequired; i++) |
*itStealEvent = *itNoteOnEvent; // copy event |
1060 |
StealVoice(itNoteOnEvent); |
itStealEvent->Param.Note.Layer = iLayer; |
1061 |
|
itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
1062 |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
pKey->VoiceTheftsQueued++; |
1063 |
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
} |
1064 |
if (itStealEvent) { |
else dmsg(1,("Voice stealing queue full!\n")); |
|
*itStealEvent = *itNoteOnEvent; // copy event |
|
|
itStealEvent->Param.Note.Layer = iLayer; |
|
|
itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
|
1065 |
} |
} |
|
else dmsg(1,("Voice stealing queue full!\n")); |
|
1066 |
} |
} |
1067 |
|
|
1068 |
return Pool<Voice>::Iterator(); // no free voice or error |
return Pool<Voice>::Iterator(); // no free voice or error |
1074 |
* voice stealing and postpone the note-on event until the selected |
* voice stealing and postpone the note-on event until the selected |
1075 |
* voice actually died. |
* voice actually died. |
1076 |
* |
* |
1077 |
|
* @param pEngineChannel - engine channel on which this event occured on |
1078 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
1079 |
|
* @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing |
1080 |
*/ |
*/ |
1081 |
void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) { |
int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
1082 |
|
if (VoiceSpawnsLeft <= 0) { |
1083 |
|
dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n")); |
1084 |
|
return -1; |
1085 |
|
} |
1086 |
if (!pEventPool->poolIsEmpty()) { |
if (!pEventPool->poolIsEmpty()) { |
1087 |
|
|
1088 |
RTList<uint>::Iterator iuiOldestKey; |
RTList<Voice>::Iterator itSelectedVoice; |
|
RTList<Voice>::Iterator itOldestVoice; |
|
1089 |
|
|
1090 |
// Select one voice for voice stealing |
// Select one voice for voice stealing |
1091 |
switch (VOICE_STEAL_ALGORITHM) { |
switch (CONFIG_VOICE_STEAL_ALGO) { |
1092 |
|
|
1093 |
// try to pick the oldest voice on the key where the new |
// try to pick the oldest voice on the key where the new |
1094 |
// voice should be spawned, if there is no voice on that |
// voice should be spawned, if there is no voice on that |
1095 |
// key, or no voice left to kill there, then procceed with |
// key, or no voice left to kill, then procceed with |
1096 |
// 'oldestkey' algorithm |
// 'oldestkey' algorithm |
1097 |
case voice_steal_algo_keymask: { |
case voice_steal_algo_oldestvoiceonkey: { |
1098 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
1099 |
if (itLastStolenVoice) { |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
1100 |
itOldestVoice = itLastStolenVoice; |
// proceed iterating if voice was created in this fragment cycle |
1101 |
++itOldestVoice; |
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
1102 |
} |
// if we haven't found a voice then proceed with algorithm 'oldestkey' |
1103 |
else { // no voice stolen in this audio fragment cycle yet |
if (itSelectedVoice && itSelectedVoice->IsStealable()) break; |
|
itOldestVoice = pOldestKey->pActiveVoices->first(); |
|
|
} |
|
|
if (itOldestVoice) { |
|
|
iuiOldestKey = pOldestKey->itSelf; |
|
|
break; // selection succeeded |
|
|
} |
|
1104 |
} // no break - intentional ! |
} // no break - intentional ! |
1105 |
|
|
1106 |
// try to pick the oldest voice on the oldest active key |
// try to pick the oldest voice on the oldest active key |
1107 |
// (caution: must stay after 'keymask' algorithm !) |
// from the same engine channel |
1108 |
|
// (caution: must stay after 'oldestvoiceonkey' algorithm !) |
1109 |
case voice_steal_algo_oldestkey: { |
case voice_steal_algo_oldestkey: { |
1110 |
if (itLastStolenVoice) { |
// if we already stole in this fragment, try to proceed on same key |
1111 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey]; |
if (this->itLastStolenVoice) { |
1112 |
itOldestVoice = itLastStolenVoice; |
itSelectedVoice = this->itLastStolenVoice; |
1113 |
++itOldestVoice; |
do { |
1114 |
if (!itOldestVoice) { |
++itSelectedVoice; |
1115 |
iuiOldestKey = iuiLastStolenKey; |
} while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle |
1116 |
++iuiOldestKey; |
// found a "stealable" voice ? |
1117 |
if (iuiOldestKey) { |
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
1118 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; |
// remember which voice we stole, so we can simply proceed on next voice stealing |
1119 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
this->itLastStolenVoice = itSelectedVoice; |
1120 |
} |
break; // selection succeeded |
|
else { |
|
|
dmsg(1,("gig::Engine: Warning, too less voices, even for voice stealing! - Better recompile with higher MAX_AUDIO_VOICES.\n")); |
|
|
return; |
|
|
} |
|
1121 |
} |
} |
|
else iuiOldestKey = iuiLastStolenKey; |
|
1122 |
} |
} |
1123 |
else { // no voice stolen in this audio fragment cycle yet |
// get (next) oldest key |
1124 |
iuiOldestKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first(); |
1125 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; |
while (iuiSelectedKey) { |
1126 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
1127 |
|
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
1128 |
|
// proceed iterating if voice was created in this fragment cycle |
1129 |
|
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
1130 |
|
// found a "stealable" voice ? |
1131 |
|
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
1132 |
|
// remember which voice on which key we stole, so we can simply proceed on next voice stealing |
1133 |
|
this->iuiLastStolenKey = iuiSelectedKey; |
1134 |
|
this->itLastStolenVoice = itSelectedVoice; |
1135 |
|
break; // selection succeeded |
1136 |
|
} |
1137 |
|
++iuiSelectedKey; // get next oldest key |
1138 |
} |
} |
1139 |
break; |
break; |
1140 |
} |
} |
1143 |
case voice_steal_algo_none: |
case voice_steal_algo_none: |
1144 |
default: { |
default: { |
1145 |
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
1146 |
return; |
return -1; |
1147 |
} |
} |
1148 |
} |
} |
1149 |
|
|
1150 |
//FIXME: can be removed, just a sanity check for debugging |
// if we couldn't steal a voice from the same engine channel then |
1151 |
if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
// steal oldest voice on the oldest key from any other engine channel |
1152 |
|
// (the smaller engine channel number, the higher priority) |
1153 |
|
if (!itSelectedVoice || !itSelectedVoice->IsStealable()) { |
1154 |
|
EngineChannel* pSelectedChannel; |
1155 |
|
int iChannelIndex; |
1156 |
|
// select engine channel |
1157 |
|
if (pLastStolenChannel) { |
1158 |
|
pSelectedChannel = pLastStolenChannel; |
1159 |
|
iChannelIndex = pSelectedChannel->iEngineIndexSelf; |
1160 |
|
} else { // pick the engine channel followed by this engine channel |
1161 |
|
iChannelIndex = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size(); |
1162 |
|
pSelectedChannel = engineChannels[iChannelIndex]; |
1163 |
|
} |
1164 |
|
|
1165 |
|
// if we already stole in this fragment, try to proceed on same key |
1166 |
|
if (this->itLastStolenVoiceGlobally) { |
1167 |
|
itSelectedVoice = this->itLastStolenVoiceGlobally; |
1168 |
|
do { |
1169 |
|
++itSelectedVoice; |
1170 |
|
} while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle |
1171 |
|
} |
1172 |
|
|
1173 |
|
#if CONFIG_DEVMODE |
1174 |
|
EngineChannel* pBegin = pSelectedChannel; // to detect endless loop |
1175 |
|
#endif // CONFIG_DEVMODE |
1176 |
|
|
1177 |
|
// did we find a 'stealable' voice? |
1178 |
|
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
1179 |
|
// remember which voice we stole, so we can simply proceed on next voice stealing |
1180 |
|
this->itLastStolenVoiceGlobally = itSelectedVoice; |
1181 |
|
} else while (true) { // iterate through engine channels |
1182 |
|
// get (next) oldest key |
1183 |
|
RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKeyGlobally) ? ++this->iuiLastStolenKeyGlobally : pSelectedChannel->pActiveKeys->first(); |
1184 |
|
this->iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); // to prevent endless loop (see line above) |
1185 |
|
while (iuiSelectedKey) { |
1186 |
|
midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
1187 |
|
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
1188 |
|
// proceed iterating if voice was created in this fragment cycle |
1189 |
|
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
1190 |
|
// found a "stealable" voice ? |
1191 |
|
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
1192 |
|
// remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing |
1193 |
|
this->iuiLastStolenKeyGlobally = iuiSelectedKey; |
1194 |
|
this->itLastStolenVoiceGlobally = itSelectedVoice; |
1195 |
|
this->pLastStolenChannel = pSelectedChannel; |
1196 |
|
goto stealable_voice_found; // selection succeeded |
1197 |
|
} |
1198 |
|
++iuiSelectedKey; // get next key on current engine channel |
1199 |
|
} |
1200 |
|
// get next engine channel |
1201 |
|
iChannelIndex = (iChannelIndex + 1) % engineChannels.size(); |
1202 |
|
pSelectedChannel = engineChannels[iChannelIndex]; |
1203 |
|
|
1204 |
|
#if CONFIG_DEVMODE |
1205 |
|
if (pSelectedChannel == pBegin) { |
1206 |
|
dmsg(1,("FATAL ERROR: voice stealing endless loop!\n")); |
1207 |
|
dmsg(1,("VoiceSpawnsLeft=%d.\n", VoiceSpawnsLeft)); |
1208 |
|
dmsg(1,("Exiting.\n")); |
1209 |
|
exit(-1); |
1210 |
|
} |
1211 |
|
#endif // CONFIG_DEVMODE |
1212 |
|
} |
1213 |
|
} |
1214 |
|
|
1215 |
|
// jump point if a 'stealable' voice was found |
1216 |
|
stealable_voice_found: |
1217 |
|
|
1218 |
|
#if CONFIG_DEVMODE |
1219 |
|
if (!itSelectedVoice->IsActive()) { |
1220 |
|
dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
1221 |
|
return -1; |
1222 |
|
} |
1223 |
|
#endif // CONFIG_DEVMODE |
1224 |
|
|
1225 |
// now kill the selected voice |
// now kill the selected voice |
1226 |
itOldestVoice->Kill(itNoteOnEvent); |
itSelectedVoice->Kill(itNoteOnEvent); |
1227 |
// remember which voice on which key we stole, so we can simply proceed for the next voice stealing |
|
1228 |
this->itLastStolenVoice = itOldestVoice; |
--VoiceSpawnsLeft; |
1229 |
this->iuiLastStolenKey = iuiOldestKey; |
|
1230 |
|
return 0; // success |
1231 |
|
} |
1232 |
|
else { |
1233 |
|
dmsg(1,("Event pool emtpy!\n")); |
1234 |
|
return -1; |
1235 |
} |
} |
|
else dmsg(1,("Event pool emtpy!\n")); |
|
1236 |
} |
} |
1237 |
|
|
1238 |
/** |
/** |
1241 |
* it finished to playback its sample, finished its release stage or |
* it finished to playback its sample, finished its release stage or |
1242 |
* just was killed. |
* just was killed. |
1243 |
* |
* |
1244 |
|
* @param pEngineChannel - engine channel on which this event occured on |
1245 |
* @param itVoice - points to the voice to be freed |
* @param itVoice - points to the voice to be freed |
1246 |
*/ |
*/ |
1247 |
void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) { |
void Engine::FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice) { |
1248 |
if (itVoice) { |
if (itVoice) { |
1249 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey]; |
1250 |
|
|
1251 |
uint keygroup = itVoice->KeyGroup; |
uint keygroup = itVoice->KeyGroup; |
1252 |
|
|
1255 |
|
|
1256 |
// if no other voices left and member of a key group, remove from key group |
// if no other voices left and member of a key group, remove from key group |
1257 |
if (pKey->pActiveVoices->isEmpty() && keygroup) { |
if (pKey->pActiveVoices->isEmpty() && keygroup) { |
1258 |
uint** ppKeyGroup = &ActiveKeyGroups[keygroup]; |
uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup]; |
1259 |
if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group |
if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group |
1260 |
} |
} |
1261 |
} |
} |
1266 |
* Called when there's no more voice left on a key, this call will |
* Called when there's no more voice left on a key, this call will |
1267 |
* update the key info respectively. |
* update the key info respectively. |
1268 |
* |
* |
1269 |
|
* @param pEngineChannel - engine channel on which this event occured on |
1270 |
* @param pKey - key which is now inactive |
* @param pKey - key which is now inactive |
1271 |
*/ |
*/ |
1272 |
void Engine::FreeKey(midi_key_info_t* pKey) { |
void Engine::FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey) { |
1273 |
if (pKey->pActiveVoices->isEmpty()) { |
if (pKey->pActiveVoices->isEmpty()) { |
1274 |
pKey->Active = false; |
pKey->Active = false; |
1275 |
pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
1276 |
pKey->itSelf = RTList<uint>::Iterator(); |
pKey->itSelf = RTList<uint>::Iterator(); |
1277 |
pKey->ReleaseTrigger = false; |
pKey->ReleaseTrigger = false; |
1278 |
pKey->pEvents->clear(); |
pKey->pEvents->clear(); |
1285 |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
1286 |
* modulation wheel, aftertouch). |
* modulation wheel, aftertouch). |
1287 |
* |
* |
1288 |
|
* @param pEngineChannel - engine channel on which this event occured on |
1289 |
* @param itControlChangeEvent - controller, value and time stamp of the event |
* @param itControlChangeEvent - controller, value and time stamp of the event |
1290 |
*/ |
*/ |
1291 |
void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) { |
void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) { |
1292 |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); |
dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); |
1293 |
|
|
1294 |
|
// update controller value in the engine channel's controller table |
1295 |
|
pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
1296 |
|
|
1297 |
|
// handle hard coded MIDI controllers |
1298 |
switch (itControlChangeEvent->Param.CC.Controller) { |
switch (itControlChangeEvent->Param.CC.Controller) { |
1299 |
case 64: { |
case 5: { // portamento time |
1300 |
if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) { |
pEngineChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN; |
1301 |
dmsg(4,("PEDAL DOWN\n")); |
break; |
1302 |
SustainPedal = true; |
} |
1303 |
|
case 7: { // volume |
1304 |
|
//TODO: not sample accurate yet |
1305 |
|
pEngineChannel->MidiVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value]; |
1306 |
|
pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag |
1307 |
|
break; |
1308 |
|
} |
1309 |
|
case 10: { // panpot |
1310 |
|
//TODO: not sample accurate yet |
1311 |
|
pEngineChannel->GlobalPanLeft = PanCurve[128 - itControlChangeEvent->Param.CC.Value]; |
1312 |
|
pEngineChannel->GlobalPanRight = PanCurve[itControlChangeEvent->Param.CC.Value]; |
1313 |
|
break; |
1314 |
|
} |
1315 |
|
case 64: { // sustain |
1316 |
|
if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
1317 |
|
dmsg(4,("DAMPER (RIGHT) PEDAL DOWN\n")); |
1318 |
|
pEngineChannel->SustainPedal = true; |
1319 |
|
|
1320 |
|
#if !CONFIG_PROCESS_MUTED_CHANNELS |
1321 |
|
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
1322 |
|
#endif |
1323 |
|
|
1324 |
// cancel release process of voices if necessary |
// cancel release process of voices if necessary |
1325 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1326 |
if (iuiKey) { |
for (; iuiKey; ++iuiKey) { |
1327 |
itControlChangeEvent->Type = Event::type_cancel_release; // transform event type |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1328 |
while (iuiKey) { |
if (!pKey->KeyPressed) { |
1329 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1330 |
++iuiKey; |
if (itNewEvent) { |
1331 |
if (!pKey->KeyPressed) { |
*itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
1332 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
itNewEvent->Type = Event::type_cancel_release; // transform event type |
|
if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
|
|
else dmsg(1,("Event pool emtpy!\n")); |
|
1333 |
} |
} |
1334 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1335 |
} |
} |
1336 |
} |
} |
1337 |
} |
} |
1338 |
if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) { |
if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { |
1339 |
dmsg(4,("PEDAL UP\n")); |
dmsg(4,("DAMPER (RIGHT) PEDAL UP\n")); |
1340 |
SustainPedal = false; |
pEngineChannel->SustainPedal = false; |
1341 |
|
|
1342 |
|
#if !CONFIG_PROCESS_MUTED_CHANNELS |
1343 |
|
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
1344 |
|
#endif |
1345 |
|
|
1346 |
// release voices if their respective key is not pressed |
// release voices if their respective key is not pressed |
1347 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1348 |
if (iuiKey) { |
for (; iuiKey; ++iuiKey) { |
1349 |
itControlChangeEvent->Type = Event::type_release; // transform event type |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1350 |
while (iuiKey) { |
if (!pKey->KeyPressed && ShouldReleaseVoice(pEngineChannel, *iuiKey)) { |
1351 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1352 |
++iuiKey; |
if (itNewEvent) { |
1353 |
if (!pKey->KeyPressed) { |
*itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
1354 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
itNewEvent->Type = Event::type_release; // transform event type |
|
if (itNewEvent) *itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
|
|
else dmsg(1,("Event pool emtpy!\n")); |
|
1355 |
} |
} |
1356 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1357 |
} |
} |
1358 |
} |
} |
1359 |
} |
} |
1360 |
break; |
break; |
1361 |
} |
} |
1362 |
} |
case 65: { // portamento on / off |
1363 |
|
KillAllVoices(pEngineChannel, itControlChangeEvent); |
1364 |
|
pEngineChannel->PortamentoMode = itControlChangeEvent->Param.CC.Value >= 64; |
1365 |
|
break; |
1366 |
|
} |
1367 |
|
case 66: { // sostenuto |
1368 |
|
if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SostenutoPedal) { |
1369 |
|
dmsg(4,("SOSTENUTO (CENTER) PEDAL DOWN\n")); |
1370 |
|
pEngineChannel->SostenutoPedal = true; |
1371 |
|
|
1372 |
|
#if !CONFIG_PROCESS_MUTED_CHANNELS |
1373 |
|
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
1374 |
|
#endif |
1375 |
|
|
1376 |
|
SostenutoKeyCount = 0; |
1377 |
|
// Remeber the pressed keys |
1378 |
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1379 |
|
for (; iuiKey; ++iuiKey) { |
1380 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1381 |
|
if (pKey->KeyPressed && SostenutoKeyCount < 128) SostenutoKeys[SostenutoKeyCount++] = *iuiKey; |
1382 |
|
} |
1383 |
|
} |
1384 |
|
if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SostenutoPedal) { |
1385 |
|
dmsg(4,("SOSTENUTO (CENTER) PEDAL UP\n")); |
1386 |
|
pEngineChannel->SostenutoPedal = false; |
1387 |
|
|
1388 |
|
#if !CONFIG_PROCESS_MUTED_CHANNELS |
1389 |
|
if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted |
1390 |
|
#endif |
1391 |
|
|
1392 |
|
// release voices if the damper pedal is up and their respective key is not pressed |
1393 |
|
for (int i = 0; i < SostenutoKeyCount; i++) { |
1394 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[SostenutoKeys[i]]; |
1395 |
|
if (!pKey->KeyPressed && !pEngineChannel->SustainPedal) { |
1396 |
|
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1397 |
|
if (itNewEvent) { |
1398 |
|
*itNewEvent = *itControlChangeEvent; // copy event to the key's own event list |
1399 |
|
itNewEvent->Type = Event::type_release; // transform event type |
1400 |
|
} |
1401 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1402 |
|
} |
1403 |
|
} |
1404 |
|
} |
1405 |
|
break; |
1406 |
|
} |
1407 |
|
|
1408 |
|
|
1409 |
|
// Channel Mode Messages |
1410 |
|
|
1411 |
// update controller value in the engine's controller table |
case 120: { // all sound off |
1412 |
ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
KillAllVoices(pEngineChannel, itControlChangeEvent); |
1413 |
|
break; |
1414 |
|
} |
1415 |
|
case 121: { // reset all controllers |
1416 |
|
pEngineChannel->ResetControllers(); |
1417 |
|
break; |
1418 |
|
} |
1419 |
|
case 123: { // all notes off |
1420 |
|
#if CONFIG_PROCESS_ALL_NOTES_OFF |
1421 |
|
ReleaseAllVoices(pEngineChannel, itControlChangeEvent); |
1422 |
|
#endif // CONFIG_PROCESS_ALL_NOTES_OFF |
1423 |
|
break; |
1424 |
|
} |
1425 |
|
case 126: { // mono mode on |
1426 |
|
KillAllVoices(pEngineChannel, itControlChangeEvent); |
1427 |
|
pEngineChannel->SoloMode = true; |
1428 |
|
break; |
1429 |
|
} |
1430 |
|
case 127: { // poly mode on |
1431 |
|
KillAllVoices(pEngineChannel, itControlChangeEvent); |
1432 |
|
pEngineChannel->SoloMode = false; |
1433 |
|
break; |
1434 |
|
} |
1435 |
|
} |
1436 |
|
|
1437 |
// move event from the unsorted event list to the control change event list |
// handle FX send controllers |
1438 |
itControlChangeEvent.moveToEndOf(pCCEvents); |
if (!pEngineChannel->fxSends.empty()) { |
1439 |
|
for (int iFxSend = 0; iFxSend < pEngineChannel->GetFxSendCount(); iFxSend++) { |
1440 |
|
FxSend* pFxSend = pEngineChannel->GetFxSend(iFxSend); |
1441 |
|
if (pFxSend->MidiController() == itControlChangeEvent->Param.CC.Controller) |
1442 |
|
pFxSend->SetLevel(itControlChangeEvent->Param.CC.Value); |
1443 |
|
} |
1444 |
|
} |
1445 |
} |
} |
1446 |
|
|
1447 |
/** |
/** |
1450 |
* @param itSysexEvent - sysex data size and time stamp of the sysex event |
* @param itSysexEvent - sysex data size and time stamp of the sysex event |
1451 |
*/ |
*/ |
1452 |
void Engine::ProcessSysex(Pool<Event>::Iterator& itSysexEvent) { |
void Engine::ProcessSysex(Pool<Event>::Iterator& itSysexEvent) { |
1453 |
RingBuffer<uint8_t>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader(); |
RingBuffer<uint8_t,false>::NonVolatileReader reader = pSysexBuffer->get_non_volatile_reader(); |
1454 |
|
|
1455 |
uint8_t exclusive_status, id; |
uint8_t exclusive_status, id; |
1456 |
if (!reader.pop(&exclusive_status)) goto free_sysex_data; |
if (!reader.pop(&exclusive_status)) goto free_sysex_data; |
1459 |
|
|
1460 |
switch (id) { |
switch (id) { |
1461 |
case 0x41: { // Roland |
case 0x41: { // Roland |
1462 |
|
dmsg(3,("Roland Sysex\n")); |
1463 |
uint8_t device_id, model_id, cmd_id; |
uint8_t device_id, model_id, cmd_id; |
1464 |
if (!reader.pop(&device_id)) goto free_sysex_data; |
if (!reader.pop(&device_id)) goto free_sysex_data; |
1465 |
if (!reader.pop(&model_id)) goto free_sysex_data; |
if (!reader.pop(&model_id)) goto free_sysex_data; |
1469 |
|
|
1470 |
// command address |
// command address |
1471 |
uint8_t addr[3]; // 2 byte addr MSB, followed by 1 byte addr LSB) |
uint8_t addr[3]; // 2 byte addr MSB, followed by 1 byte addr LSB) |
1472 |
const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later |
const RingBuffer<uint8_t,false>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later |
1473 |
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
1474 |
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
1475 |
|
dmsg(3,("\tSystem Parameter\n")); |
1476 |
} |
} |
1477 |
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
1478 |
|
dmsg(3,("\tCommon Parameter\n")); |
1479 |
} |
} |
1480 |
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
1481 |
switch (addr[3]) { |
dmsg(3,("\tPart Parameter\n")); |
1482 |
|
switch (addr[2]) { |
1483 |
case 0x40: { // scale tuning |
case 0x40: { // scale tuning |
1484 |
|
dmsg(3,("\t\tScale Tuning\n")); |
1485 |
uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave |
uint8_t scale_tunes[12]; // detuning of all 12 semitones of an octave |
1486 |
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
1487 |
uint8_t checksum; |
uint8_t checksum; |
1488 |
if (!reader.pop(&checksum)) goto free_sysex_data; |
if (!reader.pop(&checksum)) goto free_sysex_data; |
1489 |
if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data; |
#if CONFIG_ASSERT_GS_SYSEX_CHECKSUM |
1490 |
|
if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data; |
1491 |
|
#endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM |
1492 |
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
1493 |
AdjustScale((int8_t*) scale_tunes); |
AdjustScale((int8_t*) scale_tunes); |
1494 |
|
dmsg(3,("\t\t\tNew scale applied.\n")); |
1495 |
break; |
break; |
1496 |
} |
} |
1497 |
} |
} |
1516 |
* question |
* question |
1517 |
* @param DataSize - size of the GS message data (in bytes) |
* @param DataSize - size of the GS message data (in bytes) |
1518 |
*/ |
*/ |
1519 |
uint8_t Engine::GSCheckSum(const RingBuffer<uint8_t>::NonVolatileReader AddrReader, uint DataSize) { |
uint8_t Engine::GSCheckSum(const RingBuffer<uint8_t,false>::NonVolatileReader AddrReader, uint DataSize) { |
1520 |
RingBuffer<uint8_t>::NonVolatileReader reader = AddrReader; |
RingBuffer<uint8_t,false>::NonVolatileReader reader = AddrReader; |
1521 |
uint bytes = 3 /*addr*/ + DataSize; |
uint bytes = 3 /*addr*/ + DataSize; |
1522 |
uint8_t addr_and_data[bytes]; |
uint8_t addr_and_data[bytes]; |
1523 |
reader.read(&addr_and_data[0], bytes); |
reader.read(&addr_and_data[0], bytes); |
1536 |
} |
} |
1537 |
|
|
1538 |
/** |
/** |
1539 |
* Initialize the parameter sequence for the modulation destination given by |
* Releases all voices on an engine channel. All voices will go into |
1540 |
* by 'dst' with the constant value given by val. |
* the release stage and thus it might take some time (e.g. dependant to |
1541 |
|
* their envelope release time) until they actually die. |
1542 |
|
* |
1543 |
|
* @param pEngineChannel - engine channel on which all voices should be released |
1544 |
|
* @param itReleaseEvent - event which caused this releasing of all voices |
1545 |
*/ |
*/ |
1546 |
void Engine::ResetSynthesisParameters(Event::destination_t dst, float val) { |
void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) { |
1547 |
int maxsamples = pAudioOutputDevice->MaxSamplesPerCycle(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1548 |
float* m = &pSynthesisParameters[dst][0]; |
while (iuiKey) { |
1549 |
for (int i = 0; i < maxsamples; i += 4) { |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1550 |
m[i] = val; |
++iuiKey; |
1551 |
m[i+1] = val; |
// append a 'release' event to the key's own event list |
1552 |
m[i+2] = val; |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1553 |
m[i+3] = val; |
if (itNewEvent) { |
1554 |
|
*itNewEvent = *itReleaseEvent; // copy original event (to the key's event list) |
1555 |
|
itNewEvent->Type = Event::type_release; // transform event type |
1556 |
|
} |
1557 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1558 |
} |
} |
1559 |
} |
} |
1560 |
|
|
1561 |
float Engine::Volume() { |
/** |
1562 |
return GlobalVolume; |
* Kills all voices on an engine channel as soon as possible. Voices |
1563 |
} |
* won't get into release state, their volume level will be ramped down |
1564 |
|
* as fast as possible. |
1565 |
void Engine::Volume(float f) { |
* |
1566 |
GlobalVolume = f; |
* @param pEngineChannel - engine channel on which all voices should be killed |
1567 |
} |
* @param itKillEvent - event which caused this killing of all voices |
1568 |
|
*/ |
1569 |
uint Engine::Channels() { |
void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) { |
1570 |
return 2; |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1571 |
} |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
1572 |
|
while (iuiKey != end) { // iterate through all active keys |
1573 |
void Engine::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) { |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1574 |
AudioChannel* pChannel = pAudioOutputDevice->Channel(AudioDeviceChannel); |
++iuiKey; |
1575 |
if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel)); |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
1576 |
switch (EngineAudioChannel) { |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
1577 |
case 0: // left output channel |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
1578 |
pOutputLeft = pChannel->Buffer(); |
itVoice->Kill(itKillEvent); |
1579 |
AudioDeviceChannelLeft = AudioDeviceChannel; |
--VoiceSpawnsLeft; //FIXME: just a temporary workaround, we should check the cause in StealVoice() instead |
1580 |
break; |
} |
|
case 1: // right output channel |
|
|
pOutputRight = pChannel->Buffer(); |
|
|
AudioDeviceChannelRight = AudioDeviceChannel; |
|
|
break; |
|
|
default: |
|
|
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
|
1581 |
} |
} |
1582 |
} |
} |
1583 |
|
|
1584 |
int Engine::OutputChannel(uint EngineAudioChannel) { |
/** |
1585 |
switch (EngineAudioChannel) { |
* Determines whether the specified voice should be released. |
1586 |
case 0: // left channel |
* |
1587 |
return AudioDeviceChannelLeft; |
* @param pEngineChannel - The engine channel on which the voice should be checked |
1588 |
case 1: // right channel |
* @param Key - The key number |
1589 |
return AudioDeviceChannelRight; |
* @returns true if the specified should be released, false otherwise. |
1590 |
default: |
*/ |
1591 |
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
bool Engine::ShouldReleaseVoice(EngineChannel* pEngineChannel, int Key) { |
1592 |
|
if (pEngineChannel->SustainPedal) return false; |
1593 |
|
|
1594 |
|
if (pEngineChannel->SostenutoPedal) { |
1595 |
|
for (int i = 0; i < SostenutoKeyCount; i++) |
1596 |
|
if (Key == SostenutoKeys[i]) return false; |
1597 |
} |
} |
1598 |
|
|
1599 |
|
return true; |
1600 |
} |
} |
1601 |
|
|
1602 |
uint Engine::VoiceCount() { |
uint Engine::VoiceCount() { |
1628 |
} |
} |
1629 |
|
|
1630 |
String Engine::EngineName() { |
String Engine::EngineName() { |
1631 |
return "GigEngine"; |
return LS_GIG_ENGINE_NAME; |
|
} |
|
|
|
|
|
String Engine::InstrumentFileName() { |
|
|
return InstrumentFile; |
|
|
} |
|
|
|
|
|
String Engine::InstrumentName() { |
|
|
return InstrumentIdxName; |
|
|
} |
|
|
|
|
|
int Engine::InstrumentIndex() { |
|
|
return InstrumentIdx; |
|
|
} |
|
|
|
|
|
int Engine::InstrumentStatus() { |
|
|
return InstrumentStat; |
|
1632 |
} |
} |
1633 |
|
|
1634 |
String Engine::Description() { |
String Engine::Description() { |
1636 |
} |
} |
1637 |
|
|
1638 |
String Engine::Version() { |
String Engine::Version() { |
1639 |
String s = "$Revision: 1.25 $"; |
String s = "$Revision: 1.68 $"; |
1640 |
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
1641 |
} |
} |
1642 |
|
|
1643 |
|
InstrumentManager* Engine::GetInstrumentManager() { |
1644 |
|
return &instruments; |
1645 |
|
} |
1646 |
|
|
1647 |
|
// static constant initializers |
1648 |
|
const float* Engine::VolumeCurve(InitVolumeCurve()); |
1649 |
|
const float* Engine::PanCurve(InitPanCurve()); |
1650 |
|
const float* Engine::CrossfadeCurve(InitCrossfadeCurve()); |
1651 |
|
|
1652 |
|
float* Engine::InitVolumeCurve() { |
1653 |
|
// line-segment approximation |
1654 |
|
const float segments[] = { |
1655 |
|
0, 0, 2, 0.0046, 16, 0.016, 31, 0.051, 45, 0.115, 54.5, 0.2, |
1656 |
|
64.5, 0.39, 74, 0.74, 92, 1.03, 114, 1.94, 119.2, 2.2, 127, 2.2 |
1657 |
|
}; |
1658 |
|
return InitCurve(segments); |
1659 |
|
} |
1660 |
|
|
1661 |
|
float* Engine::InitPanCurve() { |
1662 |
|
// line-segment approximation |
1663 |
|
const float segments[] = { |
1664 |
|
0, 0, 1, 0, |
1665 |
|
2, 0.05, 31.5, 0.7, 51, 0.851, 74.5, 1.12, |
1666 |
|
127, 1.41, 128, 1.41 |
1667 |
|
}; |
1668 |
|
return InitCurve(segments, 129); |
1669 |
|
} |
1670 |
|
|
1671 |
|
float* Engine::InitCrossfadeCurve() { |
1672 |
|
// line-segment approximation |
1673 |
|
const float segments[] = { |
1674 |
|
0, 0, 1, 0.03, 10, 0.1, 51, 0.58, 127, 1 |
1675 |
|
}; |
1676 |
|
return InitCurve(segments); |
1677 |
|
} |
1678 |
|
|
1679 |
|
float* Engine::InitCurve(const float* segments, int size) { |
1680 |
|
float* y = new float[size]; |
1681 |
|
for (int x = 0 ; x < size ; x++) { |
1682 |
|
if (x > segments[2]) segments += 2; |
1683 |
|
y[x] = segments[1] + (x - segments[0]) * |
1684 |
|
(segments[3] - segments[1]) / (segments[2] - segments[0]); |
1685 |
|
} |
1686 |
|
return y; |
1687 |
|
} |
1688 |
|
|
1689 |
}} // namespace LinuxSampler::gig |
}} // namespace LinuxSampler::gig |