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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 Christian Schoenebeck * |
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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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#include <malloc.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>(CONFIG_SYSEX_BUFFER_SIZE, 0); |
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pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
pEventQueue = new RingBuffer<Event>(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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pBasicFilterParameters = NULL; |
pBasicFilterParameters = NULL; |
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pMainFilterParameters = NULL; |
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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} |
} |
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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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if (pDiskThread) { |
if (pDiskThread) { |
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dmsg(1,("Stopping disk thread...")); |
dmsg(1,("Stopping disk thread...")); |
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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; |
if (pMainFilterParameters) delete[] pMainFilterParameters; |
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if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
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if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
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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// 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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* control and status variables. This method is not thread safe! |
* control and status variables. This method is not thread safe! |
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*/ |
*/ |
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void Engine::ResetInternal() { |
void Engine::ResetInternal() { |
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Pitch = 0; |
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SustainPedal = false; |
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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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// 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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iuiLastStolenKey = RTList<uint>::Iterator(); |
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pLastStolenChannel = NULL; |
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// reset to normal chromatic scale (means equal temper) |
// reset to normal chromatic scale (means equal temper) |
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memset(&ScaleTuning[0], 0x00, 12); |
memset(&ScaleTuning[0], 0x00, 12); |
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// set all MIDI controller values to zero |
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memset(ControllerTable, 0x00, 128); |
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// reset key info |
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for (uint i = 0; i < 128; i++) { |
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pMIDIKeyInfo[i].pActiveVoices->clear(); |
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pMIDIKeyInfo[i].pEvents->clear(); |
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pMIDIKeyInfo[i].KeyPressed = false; |
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pMIDIKeyInfo[i].Active = false; |
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pMIDIKeyInfo[i].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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iterVoice->Reset(); |
iterVoice->Reset(); |
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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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} |
} |
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/** |
/** |
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* Load an instrument from a .gig file. |
* Connect this engine instance with the given audio output device. |
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* This method will be called when an Engine instance is created. |
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* All of the engine's data structures which are dependant to the used |
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* audio output device / driver will be (re)allocated and / or |
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* adjusted appropriately. |
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* |
* |
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* @param FileName - file name of the Gigasampler instrument file |
* @param pAudioOut - audio output device to connect to |
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* @param Instrument - index of the instrument in the .gig file |
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* @throws LinuxSamplerException on error |
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* @returns detailed description of the method call result |
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*/ |
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void Engine::LoadInstrument(const char* FileName, uint Instrument) { |
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DisableAndLock(); |
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ResetInternal(); // reset engine |
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// free old instrument |
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if (pInstrument) { |
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// give old instrument back to instrument manager |
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Instruments.HandBack(pInstrument, this); |
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} |
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InstrumentFile = FileName; |
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InstrumentIdx = Instrument; |
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InstrumentStat = 0; |
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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 = FileName; |
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instrid.iInstrument = Instrument; |
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pInstrument = Instruments.Borrow(instrid, this); |
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if (!pInstrument) { |
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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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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) { |
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pAudioOutputDevice = pAudioOut; |
pAudioOutputDevice = pAudioOut; |
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throw LinuxSamplerException(msg); |
throw LinuxSamplerException(msg); |
228 |
} |
} |
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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 |
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MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1; |
MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1; |
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if (MaxFadeOutPos < 0) |
if (MaxFadeOutPos < 0) |
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throw LinuxSamplerException("EG_MIN_RELEASE_TIME in EGADSR.h to big for current audio fragment size / sampling rate!"); |
throw LinuxSamplerException("CONFIG_EG_MIN_RELEASE_TIME too big for current audio fragment size / sampling rate!"); |
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// (re)create disk thread |
// (re)create disk thread |
239 |
if (this->pDiskThread) { |
if (this->pDiskThread) { |
242 |
delete this->pDiskThread; |
delete this->pDiskThread; |
243 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
244 |
} |
} |
245 |
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 |
246 |
if (!pDiskThread) { |
if (!pDiskThread) { |
247 |
dmsg(0,("gig::Engine new diskthread = NULL\n")); |
dmsg(0,("gig::Engine new diskthread = NULL\n")); |
248 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
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// (re)allocate synthesis parameter matrix |
// (re)allocate synthesis parameter matrix |
262 |
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
263 |
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264 |
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#if defined(__APPLE__) |
265 |
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pSynthesisParameters[0] = (float *) malloc(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()); |
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#else |
267 |
pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle())); |
pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle())); |
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#endif |
269 |
for (int dst = 1; dst < Event::destination_count; dst++) |
for (int dst = 1; dst < Event::destination_count; dst++) |
270 |
pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
271 |
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287 |
} |
} |
288 |
} |
} |
289 |
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void Engine::DisconnectAudioOutputDevice() { |
/** |
291 |
if (pAudioOutputDevice) { // if clause to prevent disconnect loops |
* Clear all engine global event lists. |
292 |
AudioOutputDevice* olddevice = pAudioOutputDevice; |
*/ |
293 |
pAudioOutputDevice = NULL; |
void Engine::ClearEventLists() { |
294 |
olddevice->Disconnect(this); |
pGlobalEvents->clear(); |
295 |
AudioDeviceChannelLeft = -1; |
} |
296 |
AudioDeviceChannelRight = -1; |
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297 |
|
/** |
298 |
|
* Copy all events from the engine's global input queue buffer to the |
299 |
|
* engine's internal event list. This will be done at the beginning of |
300 |
|
* each audio cycle (that is each RenderAudio() call) to distinguish |
301 |
|
* all global events which have to be processed in the current audio |
302 |
|
* cycle. These events are usually just SysEx messages. Every |
303 |
|
* EngineChannel has it's own input event queue buffer and event list |
304 |
|
* to handle common events like NoteOn, NoteOff and ControlChange |
305 |
|
* events. |
306 |
|
* |
307 |
|
* @param Samples - number of sample points to be processed in the |
308 |
|
* current audio cycle |
309 |
|
*/ |
310 |
|
void Engine::ImportEvents(uint Samples) { |
311 |
|
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
312 |
|
Event* pEvent; |
313 |
|
while (true) { |
314 |
|
// get next event from input event queue |
315 |
|
if (!(pEvent = eventQueueReader.pop())) break; |
316 |
|
// if younger event reached, ignore that and all subsequent ones for now |
317 |
|
if (pEvent->FragmentPos() >= Samples) { |
318 |
|
eventQueueReader--; |
319 |
|
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
320 |
|
pEvent->ResetFragmentPos(); |
321 |
|
break; |
322 |
|
} |
323 |
|
// copy event to internal event list |
324 |
|
if (pGlobalEvents->poolIsEmpty()) { |
325 |
|
dmsg(1,("Event pool emtpy!\n")); |
326 |
|
break; |
327 |
|
} |
328 |
|
*pGlobalEvents->allocAppend() = *pEvent; |
329 |
} |
} |
330 |
|
eventQueueReader.free(); // free all copied events from input queue |
331 |
} |
} |
332 |
|
|
333 |
/** |
/** |
343 |
int Engine::RenderAudio(uint Samples) { |
int Engine::RenderAudio(uint Samples) { |
344 |
dmsg(5,("RenderAudio(Samples=%d)\n", Samples)); |
dmsg(5,("RenderAudio(Samples=%d)\n", Samples)); |
345 |
|
|
346 |
// return if no instrument loaded or engine disabled |
// return if engine disabled |
347 |
if (EngineDisabled.Pop()) { |
if (EngineDisabled.Pop()) { |
348 |
dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); |
dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); |
349 |
return 0; |
return 0; |
350 |
} |
} |
|
if (!pInstrument) { |
|
|
dmsg(5,("gig::Engine: no instrument loaded\n")); |
|
|
return 0; |
|
|
} |
|
|
|
|
351 |
|
|
352 |
// 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) |
353 |
pEventGenerator->UpdateFragmentTime(Samples); |
pEventGenerator->UpdateFragmentTime(Samples); |
354 |
|
|
355 |
|
// get all events from the engine's global input event queue which belong to the current fragment |
356 |
|
// (these are usually just SysEx messages) |
357 |
|
ImportEvents(Samples); |
358 |
|
|
359 |
// 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(); |
|
|
} |
|
360 |
{ |
{ |
361 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<Event>::Iterator itEvent = pGlobalEvents->first(); |
362 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
RTList<Event>::Iterator end = pGlobalEvents->end(); |
363 |
for(; iuiKey != end; ++iuiKey) { |
for (; itEvent != end; ++itEvent) { |
364 |
pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
switch (itEvent->Type) { |
365 |
|
case Event::type_sysex: |
366 |
|
dmsg(5,("Engine: Sysex received\n")); |
367 |
|
ProcessSysex(itEvent); |
368 |
|
break; |
369 |
|
} |
370 |
} |
} |
371 |
} |
} |
372 |
|
|
373 |
|
// We only allow a maximum of CONFIG_MAX_VOICES voices to be stolen |
374 |
|
// in each audio fragment. All subsequent request for spawning new |
375 |
|
// voices in the same audio fragment will be ignored. |
376 |
|
VoiceTheftsLeft = CONFIG_MAX_VOICES; |
377 |
|
|
378 |
// get all events from the input event queue which belong to the current fragment |
// reset internal voice counter (just for statistic of active voices) |
379 |
{ |
ActiveVoiceCountTemp = 0; |
380 |
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
|
381 |
Event* pEvent; |
|
382 |
while (true) { |
// handle events on all engine channels |
383 |
// get next event from input event queue |
for (int i = 0; i < engineChannels.size(); i++) { |
384 |
if (!(pEvent = eventQueueReader.pop())) break; |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
385 |
// if younger event reached, ignore that and all subsequent ones for now |
ProcessEvents(engineChannels[i], Samples); |
|
if (pEvent->FragmentPos() >= Samples) { |
|
|
eventQueueReader--; |
|
|
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 |
|
386 |
} |
} |
387 |
|
|
388 |
|
// render all 'normal', active voices on all engine channels |
389 |
|
for (int i = 0; i < engineChannels.size(); i++) { |
390 |
|
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
391 |
|
RenderActiveVoices(engineChannels[i], Samples); |
392 |
|
} |
393 |
|
|
394 |
|
// now that all ordinary voices on ALL engine channels are rendered, render new stolen voices |
395 |
|
RenderStolenVoices(Samples); |
396 |
|
|
397 |
|
// handle cleanup on all engine channels for the next audio fragment |
398 |
|
for (int i = 0; i < engineChannels.size(); i++) { |
399 |
|
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
400 |
|
PostProcess(engineChannels[i]); |
401 |
|
} |
402 |
|
|
403 |
|
|
404 |
|
// empty the engine's event list for the next audio fragment |
405 |
|
ClearEventLists(); |
406 |
|
|
407 |
|
// reset voice stealing for the next audio fragment |
408 |
|
pVoiceStealingQueue->clear(); |
409 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
410 |
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
411 |
|
pLastStolenChannel = NULL; |
412 |
|
|
413 |
|
// just some statistics about this engine instance |
414 |
|
ActiveVoiceCount = ActiveVoiceCountTemp; |
415 |
|
if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
416 |
|
|
417 |
|
return 0; |
418 |
|
} |
419 |
|
|
420 |
|
/** |
421 |
|
* Dispatch and handle all events in this audio fragment for the given |
422 |
|
* engine channel. |
423 |
|
* |
424 |
|
* @param pEngineChannel - engine channel on which events should be |
425 |
|
* processed |
426 |
|
* @param Samples - amount of sample points to be processed in |
427 |
|
* this audio fragment cycle |
428 |
|
*/ |
429 |
|
void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) { |
430 |
|
// get all events from the engine channels's input event queue which belong to the current fragment |
431 |
|
// (these are the common events like NoteOn, NoteOff, ControlChange, etc.) |
432 |
|
pEngineChannel->ImportEvents(Samples); |
433 |
|
|
434 |
// process events |
// process events |
435 |
{ |
{ |
436 |
RTList<Event>::Iterator itEvent = pEvents->first(); |
RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first(); |
437 |
RTList<Event>::Iterator end = pEvents->end(); |
RTList<Event>::Iterator end = pEngineChannel->pEvents->end(); |
438 |
for (; itEvent != end; ++itEvent) { |
for (; itEvent != end; ++itEvent) { |
439 |
switch (itEvent->Type) { |
switch (itEvent->Type) { |
440 |
case Event::type_note_on: |
case Event::type_note_on: |
441 |
dmsg(5,("Engine: Note on received\n")); |
dmsg(5,("Engine: Note on received\n")); |
442 |
ProcessNoteOn(itEvent); |
ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent); |
443 |
break; |
break; |
444 |
case Event::type_note_off: |
case Event::type_note_off: |
445 |
dmsg(5,("Engine: Note off received\n")); |
dmsg(5,("Engine: Note off received\n")); |
446 |
ProcessNoteOff(itEvent); |
ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent); |
447 |
break; |
break; |
448 |
case Event::type_control_change: |
case Event::type_control_change: |
449 |
dmsg(5,("Engine: MIDI CC received\n")); |
dmsg(5,("Engine: MIDI CC received\n")); |
450 |
ProcessControlChange(itEvent); |
ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent); |
451 |
break; |
break; |
452 |
case Event::type_pitchbend: |
case Event::type_pitchbend: |
453 |
dmsg(5,("Engine: Pitchbend received\n")); |
dmsg(5,("Engine: Pitchbend received\n")); |
454 |
ProcessPitchbend(itEvent); |
ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent); |
|
break; |
|
|
case Event::type_sysex: |
|
|
dmsg(5,("Engine: Sysex received\n")); |
|
|
ProcessSysex(itEvent); |
|
455 |
break; |
break; |
456 |
} |
} |
457 |
} |
} |
458 |
} |
} |
459 |
|
} |
460 |
|
|
461 |
|
/** |
462 |
int active_voices = 0; |
* Render all 'normal' voices (that is voices which were not stolen in |
463 |
|
* this fragment) on the given engine channel. |
464 |
// render audio from all active voices |
* |
465 |
{ |
* @param pEngineChannel - engine channel on which audio should be |
466 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
* rendered |
467 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
* @param Samples - amount of sample points to be rendered in |
468 |
while (iuiKey != end) { // iterate through all active keys |
* this audio fragment cycle |
469 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
*/ |
470 |
++iuiKey; |
void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) { |
471 |
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
472 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
473 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
while (iuiKey != end) { // iterate through all active keys |
474 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
475 |
// now render current voice |
++iuiKey; |
476 |
itVoice->Render(Samples); |
|
477 |
if (itVoice->IsActive()) active_voices++; // still active |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
478 |
else { // voice reached end, is now inactive |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
479 |
FreeVoice(itVoice); // remove voice from the list of active voices |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
480 |
} |
// now render current voice |
481 |
|
itVoice->Render(Samples); |
482 |
|
if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
483 |
|
else { // voice reached end, is now inactive |
484 |
|
FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices |
485 |
} |
} |
486 |
} |
} |
487 |
} |
} |
488 |
|
} |
489 |
|
|
490 |
|
/** |
491 |
// now render all postponed voices from voice stealing |
* Render all stolen voices (only voices which were stolen in this |
492 |
{ |
* fragment) on the given engine channel. Stolen voices are rendered |
493 |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
* after all normal voices have been rendered; this is needed to render |
494 |
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
* audio of those voices which were selected for voice stealing until |
495 |
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
* the point were the stealing (that is the take over of the voice) |
496 |
Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
* actually happened. |
497 |
if (itNewVoice) { |
* |
498 |
for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) { |
* @param pEngineChannel - engine channel on which audio should be |
499 |
itNewVoice->Render(Samples); |
* rendered |
500 |
if (itNewVoice->IsActive()) active_voices++; // still active |
* @param Samples - amount of sample points to be rendered in |
501 |
else { // voice reached end, is now inactive |
* this audio fragment cycle |
502 |
FreeVoice(itNewVoice); // remove voice from the list of active voices |
*/ |
503 |
} |
void Engine::RenderStolenVoices(uint Samples) { |
504 |
} |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
505 |
|
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
506 |
|
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
507 |
|
EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel; |
508 |
|
Pool<Voice>::Iterator itNewVoice = |
509 |
|
LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
510 |
|
if (itNewVoice) { |
511 |
|
itNewVoice->Render(Samples); |
512 |
|
if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
513 |
|
else { // voice reached end, is now inactive |
514 |
|
FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices |
515 |
} |
} |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
|
516 |
} |
} |
517 |
} |
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
|
// reset voice stealing for the new fragment |
|
|
pVoiceStealingQueue->clear(); |
|
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
|
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
|
518 |
|
|
519 |
|
// we need to clear the key's event list explicitly here in case key was never active |
520 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key]; |
521 |
|
pKey->VoiceTheftsQueued--; |
522 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear(); |
523 |
|
} |
524 |
|
} |
525 |
|
|
526 |
|
/** |
527 |
|
* Free all keys which have turned inactive in this audio fragment, from |
528 |
|
* the list of active keys and clear all event lists on that engine |
529 |
|
* channel. |
530 |
|
* |
531 |
|
* @param pEngineChannel - engine channel to cleanup |
532 |
|
*/ |
533 |
|
void Engine::PostProcess(EngineChannel* pEngineChannel) { |
534 |
// free all keys which have no active voices left |
// free all keys which have no active voices left |
535 |
{ |
{ |
536 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
537 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
538 |
while (iuiKey != end) { // iterate through all active keys |
while (iuiKey != end) { // iterate through all active keys |
539 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
540 |
++iuiKey; |
++iuiKey; |
541 |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey); |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey); |
542 |
#if DEVMODE |
#if CONFIG_DEVMODE |
543 |
else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
else { // just a sanity check for debugging |
544 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
545 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
546 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
549 |
} |
} |
550 |
} |
} |
551 |
} |
} |
552 |
#endif // DEVMODE |
#endif // CONFIG_DEVMODE |
553 |
} |
} |
554 |
} |
} |
555 |
|
|
556 |
|
// empty the engine channel's own event lists |
557 |
// 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!")); |
|
558 |
} |
} |
559 |
|
|
560 |
/** |
/** |
568 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
569 |
event.Type = Event::type_sysex; |
event.Type = Event::type_sysex; |
570 |
event.Param.Sysex.Size = Size; |
event.Param.Sysex.Size = Size; |
571 |
|
event.pEngineChannel = NULL; // as Engine global event |
572 |
if (pEventQueue->write_space() > 0) { |
if (pEventQueue->write_space() > 0) { |
573 |
if (pSysexBuffer->write_space() >= Size) { |
if (pSysexBuffer->write_space() >= Size) { |
574 |
// copy sysex data to input buffer |
// copy sysex data to input buffer |
584 |
// finally place sysex event into input event queue |
// finally place sysex event into input event queue |
585 |
pEventQueue->push(&event); |
pEventQueue->push(&event); |
586 |
} |
} |
587 |
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)); |
588 |
} |
} |
589 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
590 |
} |
} |
592 |
/** |
/** |
593 |
* Assigns and triggers a new voice for the respective MIDI key. |
* Assigns and triggers a new voice for the respective MIDI key. |
594 |
* |
* |
595 |
|
* @param pEngineChannel - engine channel on which this event occured on |
596 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
597 |
*/ |
*/ |
598 |
void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) { |
void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
599 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
|
600 |
|
const int key = itNoteOnEvent->Param.Note.Key; |
601 |
|
|
602 |
|
// Change key dimension value if key is in keyswitching area |
603 |
|
{ |
604 |
|
const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument; |
605 |
|
if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high) |
606 |
|
pEngineChannel->CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) / |
607 |
|
(pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); |
608 |
|
} |
609 |
|
|
610 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; |
611 |
|
|
612 |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
613 |
|
|
614 |
// cancel release process of voices on this key if needed |
// cancel release process of voices on this key if needed |
615 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
616 |
RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); |
RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); |
617 |
if (itCancelReleaseEvent) { |
if (itCancelReleaseEvent) { |
618 |
*itCancelReleaseEvent = *itNoteOnEvent; // copy event |
*itCancelReleaseEvent = *itNoteOnEvent; // copy event |
624 |
// move note on event to the key's own event list |
// move note on event to the key's own event list |
625 |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
626 |
|
|
627 |
// allocate and trigger a new voice for the key |
// allocate and trigger new voice(s) for the key |
628 |
LaunchVoice(itNoteOnEventOnKeyList, 0, false, true); |
{ |
629 |
|
// first, get total amount of required voices (dependant on amount of layers) |
630 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key); |
631 |
|
if (pRegion) { |
632 |
|
int voicesRequired = pRegion->Layers; |
633 |
|
// now launch the required amount of voices |
634 |
|
for (int i = 0; i < voicesRequired; i++) |
635 |
|
LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true); |
636 |
|
} |
637 |
|
} |
638 |
|
|
639 |
|
// if neither a voice was spawned or postponed then remove note on event from key again |
640 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) |
641 |
|
pKey->pEvents->free(itNoteOnEventOnKeyList); |
642 |
|
|
643 |
|
pKey->RoundRobinIndex++; |
644 |
} |
} |
645 |
|
|
646 |
/** |
/** |
649 |
* 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. |
650 |
* due to completion of sample playback). |
* due to completion of sample playback). |
651 |
* |
* |
652 |
|
* @param pEngineChannel - engine channel on which this event occured on |
653 |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
654 |
*/ |
*/ |
655 |
void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) { |
void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) { |
656 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
657 |
|
|
658 |
pKey->KeyPressed = false; // the MIDI key was now released |
pKey->KeyPressed = false; // the MIDI key was now released |
659 |
|
|
660 |
// release voices on this key if needed |
// release voices on this key if needed |
661 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
662 |
itNoteOffEvent->Type = Event::type_release; // transform event type |
itNoteOffEvent->Type = Event::type_release; // transform event type |
|
} |
|
663 |
|
|
664 |
// move event to the key's own event list |
// move event to the key's own event list |
665 |
RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); |
RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); |
666 |
|
|
667 |
// spawn release triggered voice(s) if needed |
// spawn release triggered voice(s) if needed |
668 |
if (pKey->ReleaseTrigger) { |
if (pKey->ReleaseTrigger) { |
669 |
LaunchVoice(itNoteOffEventOnKeyList, 0, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
// first, get total amount of required voices (dependant on amount of layers) |
670 |
pKey->ReleaseTrigger = false; |
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key); |
671 |
|
if (pRegion) { |
672 |
|
int voicesRequired = pRegion->Layers; |
673 |
|
// now launch the required amount of voices |
674 |
|
for (int i = 0; i < voicesRequired; i++) |
675 |
|
LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
676 |
|
} |
677 |
|
pKey->ReleaseTrigger = false; |
678 |
|
} |
679 |
|
|
680 |
|
// if neither a voice was spawned or postponed then remove note off event from key again |
681 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) |
682 |
|
pKey->pEvents->free(itNoteOffEventOnKeyList); |
683 |
} |
} |
684 |
} |
} |
685 |
|
|
687 |
* Moves pitchbend event from the general (input) event list to the pitch |
* Moves pitchbend event from the general (input) event list to the pitch |
688 |
* event list. |
* event list. |
689 |
* |
* |
690 |
|
* @param pEngineChannel - engine channel on which this event occured on |
691 |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
692 |
*/ |
*/ |
693 |
void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) { |
void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
694 |
this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
695 |
itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]); |
itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]); |
696 |
} |
} |
697 |
|
|
698 |
/** |
/** |
700 |
* called by the ProcessNoteOn() method and by the voices itself |
* called by the ProcessNoteOn() method and by the voices itself |
701 |
* (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). |
702 |
* |
* |
703 |
|
* @param pEngineChannel - engine channel on which this event occured on |
704 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
705 |
* @param iLayer - layer index for the new voice (optional - only |
* @param iLayer - layer index for the new voice (optional - only |
706 |
* in case of layered sounds of course) |
* in case of layered sounds of course) |
710 |
* when there is no free voice |
* when there is no free voice |
711 |
* (optional, default = true) |
* (optional, default = true) |
712 |
* @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 |
713 |
* if an error occured while trying to trigger the new voice |
* if the voice wasn't triggered (for example when no region is |
714 |
|
* defined for the given key). |
715 |
*/ |
*/ |
716 |
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) { |
717 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
718 |
|
|
719 |
// allocate a new voice for the key |
// allocate a new voice for the key |
720 |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
721 |
if (itNewVoice) { |
if (itNewVoice) { |
722 |
// launch the new voice |
// launch the new voice |
723 |
if (itNewVoice->Trigger(itNoteOnEvent, this->Pitch, this->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) { |
if (itNewVoice->Trigger(pEngineChannel, itNoteOnEvent, pEngineChannel->Pitch, pEngineChannel->pInstrument, iLayer, ReleaseTriggerVoice, VoiceStealing) < 0) { |
724 |
dmsg(1,("Triggering new voice failed!\n")); |
dmsg(4,("Voice not triggered\n")); |
725 |
pKey->pActiveVoices->free(itNewVoice); |
pKey->pActiveVoices->free(itNewVoice); |
726 |
} |
} |
727 |
else { // on success |
else { // on success |
728 |
uint** ppKeyGroup = NULL; |
uint** ppKeyGroup = NULL; |
729 |
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
730 |
ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup]; |
ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; |
731 |
if (*ppKeyGroup) { // if there's already an active key in that key group |
if (*ppKeyGroup) { // if there's already an active key in that key group |
732 |
midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup]; |
midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup]; |
733 |
// kill all voices on the (other) key |
// kill all voices on the (other) key |
734 |
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
735 |
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
740 |
} |
} |
741 |
if (!pKey->Active) { // mark as active key |
if (!pKey->Active) { // mark as active key |
742 |
pKey->Active = true; |
pKey->Active = true; |
743 |
pKey->itSelf = pActiveKeys->allocAppend(); |
pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend(); |
744 |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
745 |
} |
} |
746 |
if (itNewVoice->KeyGroup) { |
if (itNewVoice->KeyGroup) { |
751 |
} |
} |
752 |
} |
} |
753 |
else if (VoiceStealing) { |
else if (VoiceStealing) { |
754 |
// first, get total amount of required voices (dependant on amount of layers) |
// try to steal one voice |
755 |
::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
int result = StealVoice(pEngineChannel, itNoteOnEvent); |
756 |
if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed |
if (!result) { // voice stolen successfully |
757 |
int voicesRequired = pRegion->Layers; |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
758 |
|
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
759 |
// now steal the (remaining) amount of voices |
if (itStealEvent) { |
760 |
for (int i = iLayer; i < voicesRequired; i++) |
*itStealEvent = *itNoteOnEvent; // copy event |
761 |
StealVoice(itNoteOnEvent); |
itStealEvent->Param.Note.Layer = iLayer; |
762 |
|
itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
763 |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
pKey->VoiceTheftsQueued++; |
764 |
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
} |
765 |
if (itStealEvent) { |
else dmsg(1,("Voice stealing queue full!\n")); |
|
*itStealEvent = *itNoteOnEvent; // copy event |
|
|
itStealEvent->Param.Note.Layer = iLayer; |
|
|
itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
|
766 |
} |
} |
|
else dmsg(1,("Voice stealing queue full!\n")); |
|
767 |
} |
} |
768 |
|
|
769 |
return Pool<Voice>::Iterator(); // no free voice or error |
return Pool<Voice>::Iterator(); // no free voice or error |
775 |
* voice stealing and postpone the note-on event until the selected |
* voice stealing and postpone the note-on event until the selected |
776 |
* voice actually died. |
* voice actually died. |
777 |
* |
* |
778 |
|
* @param pEngineChannel - engine channel on which this event occured on |
779 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
780 |
|
* @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing |
781 |
*/ |
*/ |
782 |
void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) { |
int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
783 |
|
if (!VoiceTheftsLeft) { |
784 |
|
dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n")); |
785 |
|
return -1; |
786 |
|
} |
787 |
if (!pEventPool->poolIsEmpty()) { |
if (!pEventPool->poolIsEmpty()) { |
788 |
|
|
789 |
RTList<uint>::Iterator iuiOldestKey; |
RTList<Voice>::Iterator itSelectedVoice; |
|
RTList<Voice>::Iterator itOldestVoice; |
|
790 |
|
|
791 |
// Select one voice for voice stealing |
// Select one voice for voice stealing |
792 |
switch (VOICE_STEAL_ALGORITHM) { |
switch (CONFIG_VOICE_STEAL_ALGO) { |
793 |
|
|
794 |
// try to pick the oldest voice on the key where the new |
// try to pick the oldest voice on the key where the new |
795 |
// voice should be spawned, if there is no voice on that |
// voice should be spawned, if there is no voice on that |
796 |
// key, or no voice left to kill there, then procceed with |
// key, or no voice left to kill, then procceed with |
797 |
// 'oldestkey' algorithm |
// 'oldestkey' algorithm |
798 |
case voice_steal_algo_keymask: { |
case voice_steal_algo_oldestvoiceonkey: { |
799 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
800 |
if (itLastStolenVoice) { |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
801 |
itOldestVoice = itLastStolenVoice; |
// proceed iterating if voice was created in this fragment cycle |
802 |
++itOldestVoice; |
while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice; |
803 |
} |
// if we haven't found a voice then proceed with algorithm 'oldestkey' |
804 |
else { // no voice stolen in this audio fragment cycle yet |
if (itSelectedVoice && itSelectedVoice->hasRendered()) break; |
|
itOldestVoice = pOldestKey->pActiveVoices->first(); |
|
|
} |
|
|
if (itOldestVoice) { |
|
|
iuiOldestKey = pOldestKey->itSelf; |
|
|
break; // selection succeeded |
|
|
} |
|
805 |
} // no break - intentional ! |
} // no break - intentional ! |
806 |
|
|
807 |
// try to pick the oldest voice on the oldest active key |
// try to pick the oldest voice on the oldest active key |
808 |
// (caution: must stay after 'keymask' algorithm !) |
// from the same engine channel |
809 |
|
// (caution: must stay after 'oldestvoiceonkey' algorithm !) |
810 |
case voice_steal_algo_oldestkey: { |
case voice_steal_algo_oldestkey: { |
811 |
if (itLastStolenVoice) { |
if (this->itLastStolenVoice) { |
812 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey]; |
itSelectedVoice = this->itLastStolenVoice; |
813 |
itOldestVoice = itLastStolenVoice; |
++itSelectedVoice; |
814 |
++itOldestVoice; |
if (itSelectedVoice) break; // selection succeeded |
815 |
if (!itOldestVoice) { |
RTList<uint>::Iterator iuiSelectedKey = this->iuiLastStolenKey; |
816 |
iuiOldestKey = iuiLastStolenKey; |
++iuiSelectedKey; |
817 |
++iuiOldestKey; |
if (iuiSelectedKey) { |
818 |
if (iuiOldestKey) { |
this->iuiLastStolenKey = iuiSelectedKey; |
819 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
820 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
821 |
} |
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; |
|
|
} |
|
822 |
} |
} |
|
else iuiOldestKey = iuiLastStolenKey; |
|
|
} |
|
|
else { // no voice stolen in this audio fragment cycle yet |
|
|
iuiOldestKey = pActiveKeys->first(); |
|
|
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; |
|
|
itOldestVoice = pOldestKey->pActiveVoices->first(); |
|
823 |
} |
} |
824 |
break; |
break; |
825 |
} |
} |
828 |
case voice_steal_algo_none: |
case voice_steal_algo_none: |
829 |
default: { |
default: { |
830 |
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
831 |
return; |
return -1; |
832 |
} |
} |
833 |
} |
} |
834 |
|
|
835 |
//FIXME: can be removed, just a sanity check for debugging |
// if we couldn't steal a voice from the same engine channel then |
836 |
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 |
837 |
|
if (!itSelectedVoice) { |
838 |
|
EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel; |
839 |
|
int iChannelIndex = pSelectedChannel->iEngineIndexSelf; |
840 |
|
while (true) { |
841 |
|
RTList<uint>::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first(); |
842 |
|
if (iuiSelectedKey) { |
843 |
|
midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
844 |
|
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
845 |
|
iuiLastStolenKey = iuiSelectedKey; |
846 |
|
pLastStolenChannel = pSelectedChannel; |
847 |
|
break; // selection succeeded |
848 |
|
} |
849 |
|
iChannelIndex = (iChannelIndex + 1) % engineChannels.size(); |
850 |
|
pSelectedChannel = engineChannels[iChannelIndex]; |
851 |
|
} |
852 |
|
} |
853 |
|
|
854 |
|
#if CONFIG_DEVMODE |
855 |
|
if (!itSelectedVoice->IsActive()) { |
856 |
|
dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
857 |
|
return -1; |
858 |
|
} |
859 |
|
#endif // CONFIG_DEVMODE |
860 |
|
|
861 |
// now kill the selected voice |
// now kill the selected voice |
862 |
itOldestVoice->Kill(itNoteOnEvent); |
itSelectedVoice->Kill(itNoteOnEvent); |
863 |
// remember which voice on which key we stole, so we can simply proceed for the next voice stealing |
|
864 |
this->itLastStolenVoice = itOldestVoice; |
// remember which voice we stole, so we can simply proceed for the next voice stealing |
865 |
this->iuiLastStolenKey = iuiOldestKey; |
itLastStolenVoice = itSelectedVoice; |
866 |
|
|
867 |
|
--VoiceTheftsLeft; |
868 |
|
|
869 |
|
return 0; // success |
870 |
|
} |
871 |
|
else { |
872 |
|
dmsg(1,("Event pool emtpy!\n")); |
873 |
|
return -1; |
874 |
} |
} |
|
else dmsg(1,("Event pool emtpy!\n")); |
|
875 |
} |
} |
876 |
|
|
877 |
/** |
/** |
880 |
* it finished to playback its sample, finished its release stage or |
* it finished to playback its sample, finished its release stage or |
881 |
* just was killed. |
* just was killed. |
882 |
* |
* |
883 |
|
* @param pEngineChannel - engine channel on which this event occured on |
884 |
* @param itVoice - points to the voice to be freed |
* @param itVoice - points to the voice to be freed |
885 |
*/ |
*/ |
886 |
void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) { |
void Engine::FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice) { |
887 |
if (itVoice) { |
if (itVoice) { |
888 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey]; |
889 |
|
|
890 |
uint keygroup = itVoice->KeyGroup; |
uint keygroup = itVoice->KeyGroup; |
891 |
|
|
894 |
|
|
895 |
// 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 |
896 |
if (pKey->pActiveVoices->isEmpty() && keygroup) { |
if (pKey->pActiveVoices->isEmpty() && keygroup) { |
897 |
uint** ppKeyGroup = &ActiveKeyGroups[keygroup]; |
uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup]; |
898 |
if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group |
if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group |
899 |
} |
} |
900 |
} |
} |
905 |
* 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 |
906 |
* update the key info respectively. |
* update the key info respectively. |
907 |
* |
* |
908 |
|
* @param pEngineChannel - engine channel on which this event occured on |
909 |
* @param pKey - key which is now inactive |
* @param pKey - key which is now inactive |
910 |
*/ |
*/ |
911 |
void Engine::FreeKey(midi_key_info_t* pKey) { |
void Engine::FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey) { |
912 |
if (pKey->pActiveVoices->isEmpty()) { |
if (pKey->pActiveVoices->isEmpty()) { |
913 |
pKey->Active = false; |
pKey->Active = false; |
914 |
pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
915 |
pKey->itSelf = RTList<uint>::Iterator(); |
pKey->itSelf = RTList<uint>::Iterator(); |
916 |
pKey->ReleaseTrigger = false; |
pKey->ReleaseTrigger = false; |
917 |
pKey->pEvents->clear(); |
pKey->pEvents->clear(); |
924 |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
925 |
* modulation wheel, aftertouch). |
* modulation wheel, aftertouch). |
926 |
* |
* |
927 |
|
* @param pEngineChannel - engine channel on which this event occured on |
928 |
* @param itControlChangeEvent - controller, value and time stamp of the event |
* @param itControlChangeEvent - controller, value and time stamp of the event |
929 |
*/ |
*/ |
930 |
void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) { |
void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) { |
931 |
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)); |
932 |
|
|
933 |
switch (itControlChangeEvent->Param.CC.Controller) { |
// update controller value in the engine channel's controller table |
934 |
case 64: { |
pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
935 |
if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) { |
|
936 |
|
// move event from the unsorted event list to the control change event list |
937 |
|
Pool<Event>::Iterator itControlChangeEventOnCCList = itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents); |
938 |
|
|
939 |
|
switch (itControlChangeEventOnCCList->Param.CC.Controller) { |
940 |
|
case 7: { // volume |
941 |
|
//TODO: not sample accurate yet |
942 |
|
pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f; |
943 |
|
break; |
944 |
|
} |
945 |
|
case 10: { // panpot |
946 |
|
//TODO: not sample accurate yet |
947 |
|
const int pan = (int) itControlChangeEventOnCCList->Param.CC.Value - 64; |
948 |
|
pEngineChannel->GlobalPanLeft = 1.0f - float(RTMath::Max(pan, 0)) / 63.0f; |
949 |
|
pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f; |
950 |
|
break; |
951 |
|
} |
952 |
|
case 64: { // sustain |
953 |
|
if (itControlChangeEventOnCCList->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
954 |
dmsg(4,("PEDAL DOWN\n")); |
dmsg(4,("PEDAL DOWN\n")); |
955 |
SustainPedal = true; |
pEngineChannel->SustainPedal = true; |
956 |
|
|
957 |
// cancel release process of voices if necessary |
// cancel release process of voices if necessary |
958 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
959 |
if (iuiKey) { |
for (; iuiKey; ++iuiKey) { |
960 |
itControlChangeEvent->Type = Event::type_cancel_release; // transform event type |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
961 |
while (iuiKey) { |
if (!pKey->KeyPressed) { |
962 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
963 |
++iuiKey; |
if (itNewEvent) { |
964 |
if (!pKey->KeyPressed) { |
*itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list |
965 |
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")); |
|
966 |
} |
} |
967 |
|
else dmsg(1,("Event pool emtpy!\n")); |
968 |
} |
} |
969 |
} |
} |
970 |
} |
} |
971 |
if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) { |
if (itControlChangeEventOnCCList->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { |
972 |
dmsg(4,("PEDAL UP\n")); |
dmsg(4,("PEDAL UP\n")); |
973 |
SustainPedal = false; |
pEngineChannel->SustainPedal = false; |
974 |
|
|
975 |
// release voices if their respective key is not pressed |
// release voices if their respective key is not pressed |
976 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
977 |
if (iuiKey) { |
for (; iuiKey; ++iuiKey) { |
978 |
itControlChangeEvent->Type = Event::type_release; // transform event type |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
979 |
while (iuiKey) { |
if (!pKey->KeyPressed) { |
980 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
981 |
++iuiKey; |
if (itNewEvent) { |
982 |
if (!pKey->KeyPressed) { |
*itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list |
983 |
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")); |
|
984 |
} |
} |
985 |
|
else dmsg(1,("Event pool emtpy!\n")); |
986 |
} |
} |
987 |
} |
} |
988 |
} |
} |
989 |
break; |
break; |
990 |
} |
} |
|
} |
|
991 |
|
|
|
// update controller value in the engine's controller table |
|
|
ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
|
992 |
|
|
993 |
// move event from the unsorted event list to the control change event list |
// Channel Mode Messages |
994 |
itControlChangeEvent.moveToEndOf(pCCEvents); |
|
995 |
|
case 120: { // all sound off |
996 |
|
KillAllVoices(pEngineChannel, itControlChangeEventOnCCList); |
997 |
|
break; |
998 |
|
} |
999 |
|
case 121: { // reset all controllers |
1000 |
|
pEngineChannel->ResetControllers(); |
1001 |
|
break; |
1002 |
|
} |
1003 |
|
case 123: { // all notes off |
1004 |
|
ReleaseAllVoices(pEngineChannel, itControlChangeEventOnCCList); |
1005 |
|
break; |
1006 |
|
} |
1007 |
|
} |
1008 |
} |
} |
1009 |
|
|
1010 |
/** |
/** |
1022 |
|
|
1023 |
switch (id) { |
switch (id) { |
1024 |
case 0x41: { // Roland |
case 0x41: { // Roland |
1025 |
|
dmsg(3,("Roland Sysex\n")); |
1026 |
uint8_t device_id, model_id, cmd_id; |
uint8_t device_id, model_id, cmd_id; |
1027 |
if (!reader.pop(&device_id)) goto free_sysex_data; |
if (!reader.pop(&device_id)) goto free_sysex_data; |
1028 |
if (!reader.pop(&model_id)) goto free_sysex_data; |
if (!reader.pop(&model_id)) goto free_sysex_data; |
1035 |
const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later |
const RingBuffer<uint8_t>::NonVolatileReader checksum_reader = reader; // so we can calculate the check sum later |
1036 |
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
1037 |
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
1038 |
|
dmsg(3,("\tSystem Parameter\n")); |
1039 |
} |
} |
1040 |
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
1041 |
|
dmsg(3,("\tCommon Parameter\n")); |
1042 |
} |
} |
1043 |
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
1044 |
switch (addr[3]) { |
dmsg(3,("\tPart Parameter\n")); |
1045 |
|
switch (addr[2]) { |
1046 |
case 0x40: { // scale tuning |
case 0x40: { // scale tuning |
1047 |
|
dmsg(3,("\t\tScale Tuning\n")); |
1048 |
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 |
1049 |
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
1050 |
uint8_t checksum; |
uint8_t checksum; |
1051 |
if (!reader.pop(&checksum)) goto free_sysex_data; |
if (!reader.pop(&checksum)) goto free_sysex_data; |
1052 |
if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data; |
#if CONFIG_ASSERT_GS_SYSEX_CHECKSUM |
1053 |
|
if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data; |
1054 |
|
#endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM |
1055 |
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
1056 |
AdjustScale((int8_t*) scale_tunes); |
AdjustScale((int8_t*) scale_tunes); |
1057 |
|
dmsg(3,("\t\t\tNew scale applied.\n")); |
1058 |
break; |
break; |
1059 |
} |
} |
1060 |
} |
} |
1099 |
} |
} |
1100 |
|
|
1101 |
/** |
/** |
1102 |
|
* Releases all voices on an engine channel. All voices will go into |
1103 |
|
* the release stage and thus it might take some time (e.g. dependant to |
1104 |
|
* their envelope release time) until they actually die. |
1105 |
|
* |
1106 |
|
* @param pEngineChannel - engine channel on which all voices should be released |
1107 |
|
* @param itReleaseEvent - event which caused this releasing of all voices |
1108 |
|
*/ |
1109 |
|
void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) { |
1110 |
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1111 |
|
while (iuiKey) { |
1112 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1113 |
|
++iuiKey; |
1114 |
|
// append a 'release' event to the key's own event list |
1115 |
|
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1116 |
|
if (itNewEvent) { |
1117 |
|
*itNewEvent = *itReleaseEvent; // copy original event (to the key's event list) |
1118 |
|
itNewEvent->Type = Event::type_release; // transform event type |
1119 |
|
} |
1120 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1121 |
|
} |
1122 |
|
} |
1123 |
|
|
1124 |
|
/** |
1125 |
|
* Kills all voices on an engine channel as soon as possible. Voices |
1126 |
|
* won't get into release state, their volume level will be ramped down |
1127 |
|
* as fast as possible. |
1128 |
|
* |
1129 |
|
* @param pEngineChannel - engine channel on which all voices should be killed |
1130 |
|
* @param itKillEvent - event which caused this killing of all voices |
1131 |
|
*/ |
1132 |
|
void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) { |
1133 |
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1134 |
|
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
1135 |
|
while (iuiKey != end) { // iterate through all active keys |
1136 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1137 |
|
++iuiKey; |
1138 |
|
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
1139 |
|
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
1140 |
|
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
1141 |
|
itVoice->Kill(itKillEvent); |
1142 |
|
} |
1143 |
|
} |
1144 |
|
} |
1145 |
|
|
1146 |
|
/** |
1147 |
* Initialize the parameter sequence for the modulation destination given by |
* Initialize the parameter sequence for the modulation destination given by |
1148 |
* by 'dst' with the constant value given by val. |
* by 'dst' with the constant value given by val. |
1149 |
*/ |
*/ |
1158 |
} |
} |
1159 |
} |
} |
1160 |
|
|
|
float Engine::Volume() { |
|
|
return GlobalVolume; |
|
|
} |
|
|
|
|
|
void Engine::Volume(float f) { |
|
|
GlobalVolume = f; |
|
|
} |
|
|
|
|
|
uint Engine::Channels() { |
|
|
return 2; |
|
|
} |
|
|
|
|
|
void Engine::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) { |
|
|
AudioChannel* pChannel = pAudioOutputDevice->Channel(AudioDeviceChannel); |
|
|
if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel)); |
|
|
switch (EngineAudioChannel) { |
|
|
case 0: // left output channel |
|
|
pOutputLeft = pChannel->Buffer(); |
|
|
AudioDeviceChannelLeft = AudioDeviceChannel; |
|
|
break; |
|
|
case 1: // right output channel |
|
|
pOutputRight = pChannel->Buffer(); |
|
|
AudioDeviceChannelRight = AudioDeviceChannel; |
|
|
break; |
|
|
default: |
|
|
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
|
|
} |
|
|
} |
|
|
|
|
|
int Engine::OutputChannel(uint EngineAudioChannel) { |
|
|
switch (EngineAudioChannel) { |
|
|
case 0: // left channel |
|
|
return AudioDeviceChannelLeft; |
|
|
case 1: // right channel |
|
|
return AudioDeviceChannelRight; |
|
|
default: |
|
|
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
|
|
} |
|
|
} |
|
|
|
|
1161 |
uint Engine::VoiceCount() { |
uint Engine::VoiceCount() { |
1162 |
return ActiveVoiceCount; |
return ActiveVoiceCount; |
1163 |
} |
} |
1187 |
} |
} |
1188 |
|
|
1189 |
String Engine::EngineName() { |
String Engine::EngineName() { |
1190 |
return "GigEngine"; |
return LS_GIG_ENGINE_NAME; |
|
} |
|
|
|
|
|
String Engine::InstrumentFileName() { |
|
|
return InstrumentFile; |
|
|
} |
|
|
|
|
|
int Engine::InstrumentIndex() { |
|
|
return InstrumentIdx; |
|
|
} |
|
|
|
|
|
int Engine::InstrumentStatus() { |
|
|
return InstrumentStat; |
|
1191 |
} |
} |
1192 |
|
|
1193 |
String Engine::Description() { |
String Engine::Description() { |
1195 |
} |
} |
1196 |
|
|
1197 |
String Engine::Version() { |
String Engine::Version() { |
1198 |
String s = "$Revision: 1.21 $"; |
String s = "$Revision: 1.38 $"; |
1199 |
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 |
1200 |
} |
} |
1201 |
|
|