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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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#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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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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pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
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pEventPool = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT); |
pEventPool = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT); |
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pVoicePool = new Pool<Voice>(MAX_AUDIO_VOICES); |
pVoicePool = new Pool<Voice>(MAX_AUDIO_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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Engine::~Engine() { |
Engine::~Engine() { |
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if (pDiskThread) { |
if (pDiskThread) { |
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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")); |
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} |
} |
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if (pGig) delete pGig; |
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if (pRIFF) delete pRIFF; |
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for (uint i = 0; i < 128; i++) { |
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if (pMIDIKeyInfo[i].pActiveVoices) delete pMIDIKeyInfo[i].pActiveVoices; |
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if (pMIDIKeyInfo[i].pEvents) delete pMIDIKeyInfo[i].pEvents; |
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} |
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for (uint i = 0; i < Event::destination_count; i++) { |
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if (pSynthesisEvents[i]) delete pSynthesisEvents[i]; |
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} |
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delete[] pSynthesisEvents; |
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if (pEvents) delete pEvents; |
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if (pCCEvents) delete pCCEvents; |
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if (pEventQueue) delete pEventQueue; |
if (pEventQueue) delete pEventQueue; |
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if (pEventPool) delete pEventPool; |
if (pEventPool) delete pEventPool; |
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if (pVoicePool) delete pVoicePool; |
if (pVoicePool) { |
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if (pActiveKeys) delete pActiveKeys; |
pVoicePool->clear(); |
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if (pSysexBuffer) delete pSysexBuffer; |
delete pVoicePool; |
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} |
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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]) delete[] 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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pEventQueue->init(); |
pEventQueue->init(); |
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} |
} |
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/** |
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* Load an instrument from a .gig file. |
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* |
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* @param FileName - file name of the Gigasampler instrument file |
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* @param Instrument - index of the instrument in the .gig file |
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* @throws LinuxSamplerException on error |
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* @returns detailed description of the method call result |
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*/ |
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void Engine::LoadInstrument(const char* FileName, uint Instrument) { |
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DisableAndLock(); |
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ResetInternal(); // reset engine |
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// free old instrument |
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if (pInstrument) { |
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// give old instrument back to instrument manager |
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Instruments.HandBack(pInstrument, this); |
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} |
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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); |
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} |
} |
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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) * 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("EG_MIN_RELEASE_TIME in EGADSR.h too big for current audio fragment size / sampling rate!"); |
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// (re)create disk thread |
// (re)create disk thread |
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if (this->pDiskThread) { |
if (this->pDiskThread) { |
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dmsg(1,("Stopping disk thread...")); |
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this->pDiskThread->StopThread(); |
this->pDiskThread->StopThread(); |
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delete this->pDiskThread; |
delete this->pDiskThread; |
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dmsg(1,("OK\n")); |
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} |
} |
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this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
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if (!pDiskThread) { |
if (!pDiskThread) { |
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pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); |
pEventGenerator = new EventGenerator(pAudioOut->SampleRate()); |
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// (re)allocate synthesis parameter matrix |
// (re)allocate synthesis parameter matrix |
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if (pSynthesisParameters[0]) delete[] pSynthesisParameters[0]; |
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
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pSynthesisParameters[0] = new float[Event::destination_count * pAudioOut->MaxSamplesPerCycle()]; |
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#if defined(__APPLE__) |
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pSynthesisParameters[0] = (float *) malloc(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()); |
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#else |
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pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle())); |
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#endif |
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for (int dst = 1; dst < Event::destination_count; dst++) |
for (int dst = 1; dst < Event::destination_count; dst++) |
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pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
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} |
} |
273 |
} |
} |
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void Engine::DisconnectAudioOutputDevice() { |
void Engine::ClearEventLists() { |
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if (pAudioOutputDevice) { // if clause to prevent disconnect loops |
pGlobalEvents->clear(); |
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AudioOutputDevice* olddevice = pAudioOutputDevice; |
} |
278 |
pAudioOutputDevice = NULL; |
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olddevice->Disconnect(this); |
/** |
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AudioDeviceChannelLeft = -1; |
* Copy all events from the engine's global input queue buffer to the |
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AudioDeviceChannelRight = -1; |
* engine's internal event list. This will be done at the beginning of |
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* each audio cycle (that is each RenderAudio() call) to distinguish |
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* all global events which have to be processed in the current audio |
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* cycle. These events are usually just SysEx messages. Every |
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* EngineChannel has it's own input event queue buffer and event list |
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* to handle common events like NoteOn, NoteOff and ControlChange |
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* events. |
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* |
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* @param Samples - number of sample points to be processed in the |
290 |
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* current audio cycle |
291 |
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*/ |
292 |
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void Engine::ImportEvents(uint Samples) { |
293 |
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RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
294 |
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Event* pEvent; |
295 |
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while (true) { |
296 |
|
// get next event from input event queue |
297 |
|
if (!(pEvent = eventQueueReader.pop())) break; |
298 |
|
// if younger event reached, ignore that and all subsequent ones for now |
299 |
|
if (pEvent->FragmentPos() >= Samples) { |
300 |
|
eventQueueReader--; |
301 |
|
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
302 |
|
pEvent->ResetFragmentPos(); |
303 |
|
break; |
304 |
|
} |
305 |
|
// copy event to internal event list |
306 |
|
if (pGlobalEvents->poolIsEmpty()) { |
307 |
|
dmsg(1,("Event pool emtpy!\n")); |
308 |
|
break; |
309 |
|
} |
310 |
|
*pGlobalEvents->allocAppend() = *pEvent; |
311 |
} |
} |
312 |
|
eventQueueReader.free(); // free all copied events from input queue |
313 |
} |
} |
314 |
|
|
315 |
/** |
/** |
325 |
int Engine::RenderAudio(uint Samples) { |
int Engine::RenderAudio(uint Samples) { |
326 |
dmsg(5,("RenderAudio(Samples=%d)\n", Samples)); |
dmsg(5,("RenderAudio(Samples=%d)\n", Samples)); |
327 |
|
|
328 |
// return if no instrument loaded or engine disabled |
// return if engine disabled |
329 |
if (EngineDisabled.Pop()) { |
if (EngineDisabled.Pop()) { |
330 |
dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); |
dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); |
331 |
return 0; |
return 0; |
332 |
} |
} |
|
if (!pInstrument) { |
|
|
dmsg(5,("gig::Engine: no instrument loaded\n")); |
|
|
return 0; |
|
|
} |
|
|
|
|
333 |
|
|
334 |
// 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) |
335 |
pEventGenerator->UpdateFragmentTime(Samples); |
pEventGenerator->UpdateFragmentTime(Samples); |
336 |
|
|
337 |
|
// get all events from the engine's global input event queue which belong to the current fragment |
338 |
|
// (these are usually just SysEx messages) |
339 |
|
ImportEvents(Samples); |
340 |
|
|
341 |
// 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(); |
|
|
} |
|
342 |
{ |
{ |
343 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<Event>::Iterator itEvent = pGlobalEvents->first(); |
344 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
RTList<Event>::Iterator end = pGlobalEvents->end(); |
345 |
for(; iuiKey != end; ++iuiKey) { |
for (; itEvent != end; ++itEvent) { |
346 |
pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
switch (itEvent->Type) { |
347 |
|
case Event::type_sysex: |
348 |
|
dmsg(5,("Engine: Sysex received\n")); |
349 |
|
ProcessSysex(itEvent); |
350 |
|
break; |
351 |
|
} |
352 |
} |
} |
353 |
} |
} |
354 |
|
|
355 |
|
// We only allow a maximum of MAX_AUDIO_VOICES voices to be stolen |
356 |
|
// in each audio fragment. All subsequent request for spawning new |
357 |
|
// voices in the same audio fragment will be ignored. |
358 |
|
VoiceTheftsLeft = MAX_AUDIO_VOICES; |
359 |
|
|
360 |
// get all events from the input event queue which belong to the current fragment |
// reset internal voice counter (just for statistic of active voices) |
361 |
{ |
ActiveVoiceCountTemp = 0; |
362 |
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
|
363 |
Event* pEvent; |
|
364 |
while (true) { |
// render audio on all engine channels |
365 |
// get next event from input event queue |
for (int i = 0; i < engineChannels.size(); i++) { |
366 |
if (!(pEvent = eventQueueReader.pop())) break; |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
367 |
// if younger event reached, ignore that and all subsequent ones for now |
// handle events on that engine channel |
368 |
if (pEvent->FragmentPos() >= Samples) { |
ProcessEvents(engineChannels[i], Samples); |
369 |
eventQueueReader--; |
// render all 'normal', active voices |
370 |
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
RenderActiveVoices(engineChannels[i], 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 |
|
371 |
} |
} |
372 |
|
|
373 |
|
// now that all ordinary voices on ALL engine channels are rendered, render new stolen voices |
374 |
|
RenderStolenVoices(Samples); |
375 |
|
|
376 |
|
// handle cleanup on all engine channels for the next audio fragment |
377 |
|
for (int i = 0; i < engineChannels.size(); i++) { |
378 |
|
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
379 |
|
PostProcess(engineChannels[i]); |
380 |
|
} |
381 |
|
|
382 |
|
|
383 |
|
// empty the engine's event list for the next audio fragment |
384 |
|
ClearEventLists(); |
385 |
|
|
386 |
|
// reset voice stealing for the next audio fragment |
387 |
|
pVoiceStealingQueue->clear(); |
388 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
389 |
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
390 |
|
pLastStolenChannel = NULL; |
391 |
|
|
392 |
|
// just some statistics about this engine instance |
393 |
|
ActiveVoiceCount = ActiveVoiceCountTemp; |
394 |
|
if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
395 |
|
|
396 |
|
return 0; |
397 |
|
} |
398 |
|
|
399 |
|
void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) { |
400 |
|
// get all events from the engine channels's input event queue which belong to the current fragment |
401 |
|
// (these are the common events like NoteOn, NoteOff, ControlChange, etc.) |
402 |
|
pEngineChannel->ImportEvents(Samples); |
403 |
|
|
404 |
// process events |
// process events |
405 |
{ |
{ |
406 |
RTList<Event>::Iterator itEvent = pEvents->first(); |
RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first(); |
407 |
RTList<Event>::Iterator end = pEvents->end(); |
RTList<Event>::Iterator end = pEngineChannel->pEvents->end(); |
408 |
for (; itEvent != end; ++itEvent) { |
for (; itEvent != end; ++itEvent) { |
409 |
switch (itEvent->Type) { |
switch (itEvent->Type) { |
410 |
case Event::type_note_on: |
case Event::type_note_on: |
411 |
dmsg(5,("Engine: Note on received\n")); |
dmsg(5,("Engine: Note on received\n")); |
412 |
ProcessNoteOn(itEvent); |
ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent); |
413 |
break; |
break; |
414 |
case Event::type_note_off: |
case Event::type_note_off: |
415 |
dmsg(5,("Engine: Note off received\n")); |
dmsg(5,("Engine: Note off received\n")); |
416 |
ProcessNoteOff(itEvent); |
ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent); |
417 |
break; |
break; |
418 |
case Event::type_control_change: |
case Event::type_control_change: |
419 |
dmsg(5,("Engine: MIDI CC received\n")); |
dmsg(5,("Engine: MIDI CC received\n")); |
420 |
ProcessControlChange(itEvent); |
ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent); |
421 |
break; |
break; |
422 |
case Event::type_pitchbend: |
case Event::type_pitchbend: |
423 |
dmsg(5,("Engine: Pitchbend received\n")); |
dmsg(5,("Engine: Pitchbend received\n")); |
424 |
ProcessPitchbend(itEvent); |
ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent); |
|
break; |
|
|
case Event::type_sysex: |
|
|
dmsg(5,("Engine: Sysex received\n")); |
|
|
ProcessSysex(itEvent); |
|
425 |
break; |
break; |
426 |
} |
} |
427 |
} |
} |
428 |
} |
} |
429 |
|
} |
430 |
|
|
431 |
|
void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) { |
432 |
int active_voices = 0; |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
433 |
|
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
434 |
// render audio from all active voices |
while (iuiKey != end) { // iterate through all active keys |
435 |
{ |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
436 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
++iuiKey; |
437 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
|
438 |
while (iuiKey != end) { // iterate through all active keys |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
439 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
440 |
++iuiKey; |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
441 |
|
// now render current voice |
442 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
itVoice->Render(Samples); |
443 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
444 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
else { // voice reached end, is now inactive |
445 |
// now render current voice |
FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices |
|
itVoice->Render(Samples); |
|
|
if (itVoice->IsActive()) active_voices++; // still active |
|
|
else { // voice reached end, is now inactive |
|
|
FreeVoice(itVoice); // remove voice from the list of active voices |
|
|
} |
|
446 |
} |
} |
447 |
} |
} |
448 |
} |
} |
449 |
|
} |
450 |
|
|
451 |
|
void Engine::RenderStolenVoices(uint Samples) { |
452 |
// now render all postponed voices from voice stealing |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
453 |
{ |
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
454 |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
455 |
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel; |
456 |
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
Pool<Voice>::Iterator itNewVoice = |
457 |
Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
458 |
if (itNewVoice) { |
if (itNewVoice) { |
459 |
for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) { |
itNewVoice->Render(Samples); |
460 |
itNewVoice->Render(Samples); |
if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
461 |
if (itNewVoice->IsActive()) active_voices++; // still active |
else { // voice reached end, is now inactive |
462 |
else { // voice reached end, is now inactive |
FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices |
|
FreeVoice(itNewVoice); // remove voice from the list of active voices |
|
|
} |
|
|
} |
|
463 |
} |
} |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
|
464 |
} |
} |
465 |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
466 |
} |
} |
467 |
// reset voice stealing for the new fragment |
} |
|
pVoiceStealingQueue->clear(); |
|
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
|
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
|
|
|
|
468 |
|
|
469 |
|
void Engine::PostProcess(EngineChannel* pEngineChannel) { |
470 |
// free all keys which have no active voices left |
// free all keys which have no active voices left |
471 |
{ |
{ |
472 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
473 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
474 |
while (iuiKey != end) { // iterate through all active keys |
while (iuiKey != end) { // iterate through all active keys |
475 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
476 |
++iuiKey; |
++iuiKey; |
477 |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey); |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey); |
478 |
#if DEVMODE |
#if DEVMODE |
479 |
else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
480 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
489 |
} |
} |
490 |
} |
} |
491 |
|
|
492 |
|
// empty the engine channel's own event lists |
493 |
// 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!")); |
|
494 |
} |
} |
495 |
|
|
496 |
/** |
/** |
504 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
505 |
event.Type = Event::type_sysex; |
event.Type = Event::type_sysex; |
506 |
event.Param.Sysex.Size = Size; |
event.Param.Sysex.Size = Size; |
507 |
|
event.pEngineChannel = NULL; // as Engine global event |
508 |
if (pEventQueue->write_space() > 0) { |
if (pEventQueue->write_space() > 0) { |
509 |
if (pSysexBuffer->write_space() >= Size) { |
if (pSysexBuffer->write_space() >= Size) { |
510 |
// copy sysex data to input buffer |
// copy sysex data to input buffer |
528 |
/** |
/** |
529 |
* Assigns and triggers a new voice for the respective MIDI key. |
* Assigns and triggers a new voice for the respective MIDI key. |
530 |
* |
* |
531 |
|
* @param pEngineChannel - engine channel on which this event occured on |
532 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
533 |
*/ |
*/ |
534 |
void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) { |
void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
535 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
|
536 |
|
const int key = itNoteOnEvent->Param.Note.Key; |
537 |
|
|
538 |
|
// Change key dimension value if key is in keyswitching area |
539 |
|
{ |
540 |
|
const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument; |
541 |
|
if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high) |
542 |
|
pEngineChannel->CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) / |
543 |
|
(pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); |
544 |
|
} |
545 |
|
|
546 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; |
547 |
|
|
548 |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
549 |
|
|
550 |
// cancel release process of voices on this key if needed |
// cancel release process of voices on this key if needed |
551 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
552 |
RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); |
RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); |
553 |
if (itCancelReleaseEvent) { |
if (itCancelReleaseEvent) { |
554 |
*itCancelReleaseEvent = *itNoteOnEvent; // copy event |
*itCancelReleaseEvent = *itNoteOnEvent; // copy event |
560 |
// move note on event to the key's own event list |
// move note on event to the key's own event list |
561 |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
562 |
|
|
563 |
// allocate and trigger a new voice for the key |
// allocate and trigger new voice(s) for the key |
564 |
LaunchVoice(itNoteOnEventOnKeyList, 0, false, true); |
{ |
565 |
|
// first, get total amount of required voices (dependant on amount of layers) |
566 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key); |
567 |
|
if (pRegion) { |
568 |
|
int voicesRequired = pRegion->Layers; |
569 |
|
// now launch the required amount of voices |
570 |
|
for (int i = 0; i < voicesRequired; i++) |
571 |
|
LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true); |
572 |
|
} |
573 |
|
} |
574 |
|
|
575 |
|
pKey->RoundRobinIndex++; |
576 |
} |
} |
577 |
|
|
578 |
/** |
/** |
581 |
* 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. |
582 |
* due to completion of sample playback). |
* due to completion of sample playback). |
583 |
* |
* |
584 |
|
* @param pEngineChannel - engine channel on which this event occured on |
585 |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
586 |
*/ |
*/ |
587 |
void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) { |
void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) { |
588 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
589 |
|
|
590 |
pKey->KeyPressed = false; // the MIDI key was now released |
pKey->KeyPressed = false; // the MIDI key was now released |
591 |
|
|
592 |
// release voices on this key if needed |
// release voices on this key if needed |
593 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
594 |
itNoteOffEvent->Type = Event::type_release; // transform event type |
itNoteOffEvent->Type = Event::type_release; // transform event type |
595 |
} |
} |
596 |
|
|
599 |
|
|
600 |
// spawn release triggered voice(s) if needed |
// spawn release triggered voice(s) if needed |
601 |
if (pKey->ReleaseTrigger) { |
if (pKey->ReleaseTrigger) { |
602 |
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) |
603 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key); |
604 |
|
if (pRegion) { |
605 |
|
int voicesRequired = pRegion->Layers; |
606 |
|
// now launch the required amount of voices |
607 |
|
for (int i = 0; i < voicesRequired; i++) |
608 |
|
LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
609 |
|
} |
610 |
pKey->ReleaseTrigger = false; |
pKey->ReleaseTrigger = false; |
611 |
} |
} |
612 |
} |
} |
615 |
* Moves pitchbend event from the general (input) event list to the pitch |
* Moves pitchbend event from the general (input) event list to the pitch |
616 |
* event list. |
* event list. |
617 |
* |
* |
618 |
|
* @param pEngineChannel - engine channel on which this event occured on |
619 |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
620 |
*/ |
*/ |
621 |
void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) { |
void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
622 |
this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
623 |
itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]); |
itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]); |
624 |
} |
} |
625 |
|
|
626 |
/** |
/** |
628 |
* called by the ProcessNoteOn() method and by the voices itself |
* called by the ProcessNoteOn() method and by the voices itself |
629 |
* (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). |
630 |
* |
* |
631 |
|
* @param pEngineChannel - engine channel on which this event occured on |
632 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
633 |
* @param iLayer - layer index for the new voice (optional - only |
* @param iLayer - layer index for the new voice (optional - only |
634 |
* in case of layered sounds of course) |
* in case of layered sounds of course) |
638 |
* when there is no free voice |
* when there is no free voice |
639 |
* (optional, default = true) |
* (optional, default = true) |
640 |
* @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 |
641 |
* if an error occured while trying to trigger the new voice |
* if the voice wasn't triggered (for example when no region is |
642 |
|
* defined for the given key). |
643 |
*/ |
*/ |
644 |
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) { |
645 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
646 |
|
|
647 |
// allocate a new voice for the key |
// allocate a new voice for the key |
648 |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
649 |
if (itNewVoice) { |
if (itNewVoice) { |
650 |
// launch the new voice |
// launch the new voice |
651 |
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) { |
652 |
dmsg(1,("Triggering new voice failed!\n")); |
dmsg(4,("Voice not triggered\n")); |
653 |
pKey->pActiveVoices->free(itNewVoice); |
pKey->pActiveVoices->free(itNewVoice); |
654 |
} |
} |
655 |
else { // on success |
else { // on success |
656 |
uint** ppKeyGroup = NULL; |
uint** ppKeyGroup = NULL; |
657 |
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
658 |
ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup]; |
ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; |
659 |
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 |
660 |
midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup]; |
midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup]; |
661 |
// kill all voices on the (other) key |
// kill all voices on the (other) key |
662 |
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
663 |
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
668 |
} |
} |
669 |
if (!pKey->Active) { // mark as active key |
if (!pKey->Active) { // mark as active key |
670 |
pKey->Active = true; |
pKey->Active = true; |
671 |
pKey->itSelf = pActiveKeys->allocAppend(); |
pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend(); |
672 |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
673 |
} |
} |
674 |
if (itNewVoice->KeyGroup) { |
if (itNewVoice->KeyGroup) { |
679 |
} |
} |
680 |
} |
} |
681 |
else if (VoiceStealing) { |
else if (VoiceStealing) { |
682 |
// first, get total amount of required voices (dependant on amount of layers) |
|
683 |
::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
// try to steal one voice |
684 |
if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed |
StealVoice(pEngineChannel, itNoteOnEvent); |
|
int voicesRequired = pRegion->Layers; |
|
|
|
|
|
// now steal the (remaining) amount of voices |
|
|
for (int i = iLayer; i < voicesRequired; i++) |
|
|
StealVoice(itNoteOnEvent); |
|
685 |
|
|
686 |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
687 |
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
702 |
* voice stealing and postpone the note-on event until the selected |
* voice stealing and postpone the note-on event until the selected |
703 |
* voice actually died. |
* voice actually died. |
704 |
* |
* |
705 |
|
* @param pEngineChannel - engine channel on which this event occured on |
706 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
707 |
*/ |
*/ |
708 |
void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) { |
void Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
709 |
|
if (!VoiceTheftsLeft) { |
710 |
|
dmsg(1,("Max. voice thefts per audio fragment reached (you may raise MAX_AUDIO_VOICES).\n")); |
711 |
|
return; |
712 |
|
} |
713 |
if (!pEventPool->poolIsEmpty()) { |
if (!pEventPool->poolIsEmpty()) { |
714 |
|
|
715 |
RTList<uint>::Iterator iuiOldestKey; |
RTList<Voice>::Iterator itSelectedVoice; |
|
RTList<Voice>::Iterator itOldestVoice; |
|
716 |
|
|
717 |
// Select one voice for voice stealing |
// Select one voice for voice stealing |
718 |
switch (VOICE_STEAL_ALGORITHM) { |
switch (VOICE_STEAL_ALGORITHM) { |
721 |
// voice should be spawned, if there is no voice on that |
// voice should be spawned, if there is no voice on that |
722 |
// key, or no voice left to kill there, then procceed with |
// key, or no voice left to kill there, then procceed with |
723 |
// 'oldestkey' algorithm |
// 'oldestkey' algorithm |
724 |
case voice_steal_algo_keymask: { |
case voice_steal_algo_oldestvoiceonkey: { |
725 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
#if 0 // FIXME: broken |
726 |
if (itLastStolenVoice) { |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
727 |
itOldestVoice = itLastStolenVoice; |
if (this->itLastStolenVoice) { |
728 |
++itOldestVoice; |
itSelectedVoice = this->itLastStolenVoice; |
729 |
|
++itSelectedVoice; |
730 |
} |
} |
731 |
else { // no voice stolen in this audio fragment cycle yet |
else { // no voice stolen in this audio fragment cycle yet |
732 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
733 |
} |
} |
734 |
if (itOldestVoice) { |
if (itSelectedVoice) { |
735 |
iuiOldestKey = pOldestKey->itSelf; |
iuiSelectedKey = pSelectedKey->itSelf; |
736 |
break; // selection succeeded |
break; // selection succeeded |
737 |
} |
} |
738 |
|
#endif |
739 |
} // no break - intentional ! |
} // no break - intentional ! |
740 |
|
|
741 |
// try to pick the oldest voice on the oldest active key |
// try to pick the oldest voice on the oldest active key |
742 |
// (caution: must stay after 'keymask' algorithm !) |
// (caution: must stay after 'oldestvoiceonkey' algorithm !) |
743 |
case voice_steal_algo_oldestkey: { |
case voice_steal_algo_oldestkey: { |
744 |
if (itLastStolenVoice) { |
if (this->itLastStolenVoice) { |
745 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey]; |
itSelectedVoice = this->itLastStolenVoice; |
746 |
itOldestVoice = itLastStolenVoice; |
++itSelectedVoice; |
747 |
++itOldestVoice; |
if (itSelectedVoice) break; // selection succeeded |
748 |
if (!itOldestVoice) { |
RTList<uint>::Iterator iuiSelectedKey = this->iuiLastStolenKey; |
749 |
iuiOldestKey = iuiLastStolenKey; |
++iuiSelectedKey; |
750 |
++iuiOldestKey; |
if (iuiSelectedKey) { |
751 |
if (iuiOldestKey) { |
this->iuiLastStolenKey = iuiSelectedKey; |
752 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
753 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
754 |
} |
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; |
|
|
} |
|
755 |
} |
} |
|
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(); |
|
756 |
} |
} |
757 |
break; |
break; |
758 |
} |
} |
765 |
} |
} |
766 |
} |
} |
767 |
|
|
768 |
|
// steal oldest voice on the oldest key from this or any other engine channel |
769 |
|
if (!itSelectedVoice) { |
770 |
|
EngineChannel* pSelectedChannel = (pLastStolenChannel) ? pLastStolenChannel : pEngineChannel; |
771 |
|
int iChannelIndex = pSelectedChannel->iEngineIndexSelf; |
772 |
|
while (true) { |
773 |
|
RTList<uint>::Iterator iuiSelectedKey = pSelectedChannel->pActiveKeys->first(); |
774 |
|
if (iuiSelectedKey) { |
775 |
|
midi_key_info_t* pSelectedKey = &pSelectedChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
776 |
|
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
777 |
|
iuiLastStolenKey = iuiSelectedKey; |
778 |
|
pLastStolenChannel = pSelectedChannel; |
779 |
|
break; // selection succeeded |
780 |
|
} |
781 |
|
iChannelIndex = (iChannelIndex + 1) % engineChannels.size(); |
782 |
|
pSelectedChannel = engineChannels[iChannelIndex]; |
783 |
|
} |
784 |
|
} |
785 |
|
|
786 |
//FIXME: can be removed, just a sanity check for debugging |
//FIXME: can be removed, just a sanity check for debugging |
787 |
if (!itOldestVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
if (!itSelectedVoice->IsActive()) dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
788 |
|
|
789 |
// now kill the selected voice |
// now kill the selected voice |
790 |
itOldestVoice->Kill(itNoteOnEvent); |
itSelectedVoice->Kill(itNoteOnEvent); |
791 |
// remember which voice on which key we stole, so we can simply proceed for the next voice stealing |
|
792 |
this->itLastStolenVoice = itOldestVoice; |
// remember which voice we stole, so we can simply proceed for the next voice stealing |
793 |
this->iuiLastStolenKey = iuiOldestKey; |
itLastStolenVoice = itSelectedVoice; |
794 |
|
|
795 |
|
--VoiceTheftsLeft; |
796 |
} |
} |
797 |
else dmsg(1,("Event pool emtpy!\n")); |
else dmsg(1,("Event pool emtpy!\n")); |
798 |
} |
} |
803 |
* it finished to playback its sample, finished its release stage or |
* it finished to playback its sample, finished its release stage or |
804 |
* just was killed. |
* just was killed. |
805 |
* |
* |
806 |
|
* @param pEngineChannel - engine channel on which this event occured on |
807 |
* @param itVoice - points to the voice to be freed |
* @param itVoice - points to the voice to be freed |
808 |
*/ |
*/ |
809 |
void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) { |
void Engine::FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice) { |
810 |
if (itVoice) { |
if (itVoice) { |
811 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey]; |
812 |
|
|
813 |
uint keygroup = itVoice->KeyGroup; |
uint keygroup = itVoice->KeyGroup; |
814 |
|
|
817 |
|
|
818 |
// 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 |
819 |
if (pKey->pActiveVoices->isEmpty() && keygroup) { |
if (pKey->pActiveVoices->isEmpty() && keygroup) { |
820 |
uint** ppKeyGroup = &ActiveKeyGroups[keygroup]; |
uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup]; |
821 |
if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group |
if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group |
822 |
} |
} |
823 |
} |
} |
828 |
* 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 |
829 |
* update the key info respectively. |
* update the key info respectively. |
830 |
* |
* |
831 |
|
* @param pEngineChannel - engine channel on which this event occured on |
832 |
* @param pKey - key which is now inactive |
* @param pKey - key which is now inactive |
833 |
*/ |
*/ |
834 |
void Engine::FreeKey(midi_key_info_t* pKey) { |
void Engine::FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey) { |
835 |
if (pKey->pActiveVoices->isEmpty()) { |
if (pKey->pActiveVoices->isEmpty()) { |
836 |
pKey->Active = false; |
pKey->Active = false; |
837 |
pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
838 |
pKey->itSelf = RTList<uint>::Iterator(); |
pKey->itSelf = RTList<uint>::Iterator(); |
839 |
pKey->ReleaseTrigger = false; |
pKey->ReleaseTrigger = false; |
840 |
pKey->pEvents->clear(); |
pKey->pEvents->clear(); |
847 |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
848 |
* modulation wheel, aftertouch). |
* modulation wheel, aftertouch). |
849 |
* |
* |
850 |
|
* @param pEngineChannel - engine channel on which this event occured on |
851 |
* @param itControlChangeEvent - controller, value and time stamp of the event |
* @param itControlChangeEvent - controller, value and time stamp of the event |
852 |
*/ |
*/ |
853 |
void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) { |
void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) { |
854 |
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)); |
855 |
|
|
856 |
switch (itControlChangeEvent->Param.CC.Controller) { |
switch (itControlChangeEvent->Param.CC.Controller) { |
857 |
case 64: { |
case 7: { // volume |
858 |
if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) { |
//TODO: not sample accurate yet |
859 |
|
pEngineChannel->GlobalVolume = (float) itControlChangeEvent->Param.CC.Value / 127.0f; |
860 |
|
break; |
861 |
|
} |
862 |
|
case 10: { // panpot |
863 |
|
//TODO: not sample accurate yet |
864 |
|
const int pan = (int) itControlChangeEvent->Param.CC.Value - 64; |
865 |
|
pEngineChannel->GlobalPanLeft = 1.0f - float(RTMath::Max(pan, 0)) / 63.0f; |
866 |
|
pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f; |
867 |
|
break; |
868 |
|
} |
869 |
|
case 64: { // sustain |
870 |
|
if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
871 |
dmsg(4,("PEDAL DOWN\n")); |
dmsg(4,("PEDAL DOWN\n")); |
872 |
SustainPedal = true; |
pEngineChannel->SustainPedal = true; |
873 |
|
|
874 |
// cancel release process of voices if necessary |
// cancel release process of voices if necessary |
875 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
876 |
if (iuiKey) { |
if (iuiKey) { |
877 |
itControlChangeEvent->Type = Event::type_cancel_release; // transform event type |
itControlChangeEvent->Type = Event::type_cancel_release; // transform event type |
878 |
while (iuiKey) { |
while (iuiKey) { |
879 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
880 |
++iuiKey; |
++iuiKey; |
881 |
if (!pKey->KeyPressed) { |
if (!pKey->KeyPressed) { |
882 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
886 |
} |
} |
887 |
} |
} |
888 |
} |
} |
889 |
if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) { |
if (itControlChangeEvent->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { |
890 |
dmsg(4,("PEDAL UP\n")); |
dmsg(4,("PEDAL UP\n")); |
891 |
SustainPedal = false; |
pEngineChannel->SustainPedal = false; |
892 |
|
|
893 |
// release voices if their respective key is not pressed |
// release voices if their respective key is not pressed |
894 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
895 |
if (iuiKey) { |
if (iuiKey) { |
896 |
itControlChangeEvent->Type = Event::type_release; // transform event type |
itControlChangeEvent->Type = Event::type_release; // transform event type |
897 |
while (iuiKey) { |
while (iuiKey) { |
898 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
899 |
++iuiKey; |
++iuiKey; |
900 |
if (!pKey->KeyPressed) { |
if (!pKey->KeyPressed) { |
901 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
910 |
} |
} |
911 |
|
|
912 |
// update controller value in the engine's controller table |
// update controller value in the engine's controller table |
913 |
ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
914 |
|
|
915 |
// move event from the unsorted event list to the control change event list |
// move event from the unsorted event list to the control change event list |
916 |
itControlChangeEvent.moveToEndOf(pCCEvents); |
itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents); |
917 |
} |
} |
918 |
|
|
919 |
/** |
/** |
1014 |
} |
} |
1015 |
} |
} |
1016 |
|
|
|
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)); |
|
|
} |
|
|
} |
|
|
|
|
1017 |
uint Engine::VoiceCount() { |
uint Engine::VoiceCount() { |
1018 |
return ActiveVoiceCount; |
return ActiveVoiceCount; |
1019 |
} |
} |
1046 |
return "GigEngine"; |
return "GigEngine"; |
1047 |
} |
} |
1048 |
|
|
|
String Engine::InstrumentFileName() { |
|
|
return InstrumentFile; |
|
|
} |
|
|
|
|
|
int Engine::InstrumentIndex() { |
|
|
return InstrumentIdx; |
|
|
} |
|
|
|
|
|
int Engine::InstrumentStatus() { |
|
|
return InstrumentStat; |
|
|
} |
|
|
|
|
1049 |
String Engine::Description() { |
String Engine::Description() { |
1050 |
return "Gigasampler Engine"; |
return "Gigasampler Engine"; |
1051 |
} |
} |
1052 |
|
|
1053 |
String Engine::Version() { |
String Engine::Version() { |
1054 |
String s = "$Revision: 1.18 $"; |
String s = "$Revision: 1.31 $"; |
1055 |
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 |
1056 |
} |
} |
1057 |
|
|