3 |
* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
4 |
* * |
* * |
5 |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
6 |
|
* Copyright (C) 2005 Christian Schoenebeck * |
7 |
* * |
* * |
8 |
* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
9 |
* 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 * |
25 |
#include "DiskThread.h" |
#include "DiskThread.h" |
26 |
#include "Voice.h" |
#include "Voice.h" |
27 |
#include "EGADSR.h" |
#include "EGADSR.h" |
28 |
|
#include "../EngineFactory.h" |
29 |
|
|
30 |
#include "Engine.h" |
#include "Engine.h" |
31 |
#include <malloc.h> |
|
32 |
|
#if defined(__APPLE__) |
33 |
|
# include <stdlib.h> |
34 |
|
#else |
35 |
|
# include <malloc.h> |
36 |
|
#endif |
37 |
|
|
38 |
namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
39 |
|
|
40 |
InstrumentResourceManager Engine::Instruments; |
InstrumentResourceManager Engine::instruments; |
41 |
|
|
42 |
|
std::map<AudioOutputDevice*,Engine*> Engine::engines; |
43 |
|
|
44 |
|
/** |
45 |
|
* Get a gig::Engine object for the given gig::EngineChannel and the |
46 |
|
* given AudioOutputDevice. All engine channels which are connected to |
47 |
|
* the same audio output device will use the same engine instance. This |
48 |
|
* method will be called by a gig::EngineChannel whenever it's |
49 |
|
* connecting to a audio output device. |
50 |
|
* |
51 |
|
* @param pChannel - engine channel which acquires an engine object |
52 |
|
* @param pDevice - the audio output device \a pChannel is connected to |
53 |
|
*/ |
54 |
|
Engine* Engine::AcquireEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) { |
55 |
|
Engine* pEngine = NULL; |
56 |
|
// check if there's already an engine for the given audio output device |
57 |
|
if (engines.count(pDevice)) { |
58 |
|
dmsg(4,("Using existing gig::Engine.\n")); |
59 |
|
pEngine = engines[pDevice]; |
60 |
|
} else { // create a new engine (and disk thread) instance for the given audio output device |
61 |
|
dmsg(4,("Creating new gig::Engine.\n")); |
62 |
|
pEngine = (Engine*) EngineFactory::Create("gig"); |
63 |
|
pEngine->Connect(pDevice); |
64 |
|
engines[pDevice] = pEngine; |
65 |
|
} |
66 |
|
// register engine channel to the engine instance |
67 |
|
pEngine->engineChannels.add(pChannel); |
68 |
|
// remember index in the ArrayList |
69 |
|
pChannel->iEngineIndexSelf = pEngine->engineChannels.size() - 1; |
70 |
|
dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); |
71 |
|
return pEngine; |
72 |
|
} |
73 |
|
|
74 |
|
/** |
75 |
|
* Once an engine channel is disconnected from an audio output device, |
76 |
|
* it wil immediately call this method to unregister itself from the |
77 |
|
* engine instance and if that engine instance is not used by any other |
78 |
|
* engine channel anymore, then that engine instance will be destroyed. |
79 |
|
* |
80 |
|
* @param pChannel - engine channel which wants to disconnect from it's |
81 |
|
* engine instance |
82 |
|
* @param pDevice - audio output device \a pChannel was connected to |
83 |
|
*/ |
84 |
|
void Engine::FreeEngine(LinuxSampler::gig::EngineChannel* pChannel, AudioOutputDevice* pDevice) { |
85 |
|
dmsg(4,("Disconnecting EngineChannel from gig::Engine.\n")); |
86 |
|
Engine* pEngine = engines[pDevice]; |
87 |
|
// unregister EngineChannel from the Engine instance |
88 |
|
pEngine->engineChannels.remove(pChannel); |
89 |
|
// if the used Engine instance is not used anymore, then destroy it |
90 |
|
if (pEngine->engineChannels.empty()) { |
91 |
|
pDevice->Disconnect(pEngine); |
92 |
|
engines.erase(pDevice); |
93 |
|
delete pEngine; |
94 |
|
dmsg(4,("Destroying gig::Engine.\n")); |
95 |
|
} |
96 |
|
else dmsg(4,("This gig::Engine has now %d EngineChannels.\n",pEngine->engineChannels.size())); |
97 |
|
} |
98 |
|
|
99 |
|
/** |
100 |
|
* Constructor |
101 |
|
*/ |
102 |
Engine::Engine() { |
Engine::Engine() { |
|
pRIFF = NULL; |
|
|
pGig = NULL; |
|
|
pInstrument = NULL; |
|
103 |
pAudioOutputDevice = NULL; |
pAudioOutputDevice = NULL; |
104 |
pDiskThread = NULL; |
pDiskThread = NULL; |
105 |
pEventGenerator = NULL; |
pEventGenerator = NULL; |
106 |
pSysexBuffer = new RingBuffer<uint8_t>(SYSEX_BUFFER_SIZE, 0); |
pSysexBuffer = new RingBuffer<uint8_t>(CONFIG_SYSEX_BUFFER_SIZE, 0); |
107 |
pEventQueue = new RingBuffer<Event>(MAX_EVENTS_PER_FRAGMENT, 0); |
pEventQueue = new RingBuffer<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0); |
108 |
pEventPool = new Pool<Event>(MAX_EVENTS_PER_FRAGMENT); |
pEventPool = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT); |
109 |
pVoicePool = new Pool<Voice>(MAX_AUDIO_VOICES); |
pVoicePool = new Pool<Voice>(CONFIG_MAX_VOICES); |
|
pActiveKeys = new Pool<uint>(128); |
|
110 |
pVoiceStealingQueue = new RTList<Event>(pEventPool); |
pVoiceStealingQueue = new RTList<Event>(pEventPool); |
111 |
pEvents = new RTList<Event>(pEventPool); |
pGlobalEvents = new RTList<Event>(pEventPool); |
|
pCCEvents = new RTList<Event>(pEventPool); |
|
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
pSynthesisEvents[i] = new RTList<Event>(pEventPool); |
|
|
} |
|
|
for (uint i = 0; i < 128; i++) { |
|
|
pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pVoicePool); |
|
|
pMIDIKeyInfo[i].KeyPressed = false; |
|
|
pMIDIKeyInfo[i].Active = false; |
|
|
pMIDIKeyInfo[i].ReleaseTrigger = false; |
|
|
pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEventPool); |
|
|
} |
|
112 |
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()) { |
113 |
iterVoice->SetEngine(this); |
iterVoice->SetEngine(this); |
114 |
} |
} |
118 |
pBasicFilterParameters = NULL; |
pBasicFilterParameters = NULL; |
119 |
pMainFilterParameters = NULL; |
pMainFilterParameters = NULL; |
120 |
|
|
|
InstrumentIdx = -1; |
|
|
InstrumentStat = -1; |
|
|
|
|
|
AudioDeviceChannelLeft = -1; |
|
|
AudioDeviceChannelRight = -1; |
|
|
|
|
121 |
ResetInternal(); |
ResetInternal(); |
122 |
|
ResetScaleTuning(); |
123 |
} |
} |
124 |
|
|
125 |
|
/** |
126 |
|
* Destructor |
127 |
|
*/ |
128 |
Engine::~Engine() { |
Engine::~Engine() { |
129 |
if (pDiskThread) { |
if (pDiskThread) { |
130 |
dmsg(1,("Stopping disk thread...")); |
dmsg(1,("Stopping disk thread...")); |
132 |
delete pDiskThread; |
delete pDiskThread; |
133 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
134 |
} |
} |
|
if (pGig) delete pGig; |
|
|
if (pRIFF) delete pRIFF; |
|
|
for (uint i = 0; i < 128; i++) { |
|
|
if (pMIDIKeyInfo[i].pActiveVoices) delete pMIDIKeyInfo[i].pActiveVoices; |
|
|
if (pMIDIKeyInfo[i].pEvents) delete pMIDIKeyInfo[i].pEvents; |
|
|
} |
|
|
for (uint i = 0; i < Event::destination_count; i++) { |
|
|
if (pSynthesisEvents[i]) delete pSynthesisEvents[i]; |
|
|
} |
|
|
if (pEvents) delete pEvents; |
|
|
if (pCCEvents) delete pCCEvents; |
|
135 |
if (pEventQueue) delete pEventQueue; |
if (pEventQueue) delete pEventQueue; |
136 |
if (pEventPool) delete pEventPool; |
if (pEventPool) delete pEventPool; |
137 |
if (pVoicePool) { |
if (pVoicePool) { |
138 |
pVoicePool->clear(); |
pVoicePool->clear(); |
139 |
delete pVoicePool; |
delete pVoicePool; |
140 |
} |
} |
|
if (pActiveKeys) delete pActiveKeys; |
|
|
if (pSysexBuffer) delete pSysexBuffer; |
|
141 |
if (pEventGenerator) delete pEventGenerator; |
if (pEventGenerator) delete pEventGenerator; |
142 |
if (pMainFilterParameters) delete[] pMainFilterParameters; |
if (pMainFilterParameters) delete[] pMainFilterParameters; |
143 |
if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
if (pBasicFilterParameters) delete[] pBasicFilterParameters; |
144 |
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
145 |
if (pVoiceStealingQueue) delete pVoiceStealingQueue; |
if (pVoiceStealingQueue) delete pVoiceStealingQueue; |
146 |
|
if (pSysexBuffer) delete pSysexBuffer; |
147 |
|
EngineFactory::Destroy(this); |
148 |
} |
} |
149 |
|
|
150 |
void Engine::Enable() { |
void Engine::Enable() { |
171 |
*/ |
*/ |
172 |
void Engine::Reset() { |
void Engine::Reset() { |
173 |
DisableAndLock(); |
DisableAndLock(); |
|
|
|
|
//if (pAudioOutputDevice->IsPlaying()) { // if already running |
|
|
/* |
|
|
// signal audio thread not to enter render part anymore |
|
|
SuspensionRequested = true; |
|
|
// sleep until wakened by audio thread |
|
|
pthread_mutex_lock(&__render_state_mutex); |
|
|
pthread_cond_wait(&__render_exit_condition, &__render_state_mutex); |
|
|
pthread_mutex_unlock(&__render_state_mutex); |
|
|
*/ |
|
|
//} |
|
|
|
|
|
//if (wasplaying) pAudioOutputDevice->Stop(); |
|
|
|
|
174 |
ResetInternal(); |
ResetInternal(); |
175 |
|
ResetScaleTuning(); |
|
// signal audio thread to continue with rendering |
|
|
//SuspensionRequested = false; |
|
176 |
Enable(); |
Enable(); |
177 |
} |
} |
178 |
|
|
181 |
* control and status variables. This method is not thread safe! |
* control and status variables. This method is not thread safe! |
182 |
*/ |
*/ |
183 |
void Engine::ResetInternal() { |
void Engine::ResetInternal() { |
|
Pitch = 0; |
|
|
SustainPedal = false; |
|
184 |
ActiveVoiceCount = 0; |
ActiveVoiceCount = 0; |
185 |
ActiveVoiceCountMax = 0; |
ActiveVoiceCountMax = 0; |
|
GlobalVolume = 1.0; |
|
186 |
|
|
187 |
// reset voice stealing parameters |
// reset voice stealing parameters |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
|
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
|
188 |
pVoiceStealingQueue->clear(); |
pVoiceStealingQueue->clear(); |
189 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
190 |
// reset to normal chromatic scale (means equal temper) |
itLastStolenVoiceGlobally = RTList<Voice>::Iterator(); |
191 |
memset(&ScaleTuning[0], 0x00, 12); |
iuiLastStolenKey = RTList<uint>::Iterator(); |
192 |
|
iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); |
193 |
// set all MIDI controller values to zero |
pLastStolenChannel = NULL; |
|
memset(ControllerTable, 0x00, 128); |
|
|
|
|
|
// reset key info |
|
|
for (uint i = 0; i < 128; i++) { |
|
|
pMIDIKeyInfo[i].pActiveVoices->clear(); |
|
|
pMIDIKeyInfo[i].pEvents->clear(); |
|
|
pMIDIKeyInfo[i].KeyPressed = false; |
|
|
pMIDIKeyInfo[i].Active = false; |
|
|
pMIDIKeyInfo[i].ReleaseTrigger = false; |
|
|
pMIDIKeyInfo[i].itSelf = Pool<uint>::Iterator(); |
|
|
} |
|
|
|
|
|
// reset all key groups |
|
|
map<uint,uint*>::iterator iter = ActiveKeyGroups.begin(); |
|
|
for (; iter != ActiveKeyGroups.end(); iter++) iter->second = NULL; |
|
194 |
|
|
195 |
// reset all voices |
// reset all voices |
196 |
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()) { |
198 |
} |
} |
199 |
pVoicePool->clear(); |
pVoicePool->clear(); |
200 |
|
|
|
// free all active keys |
|
|
pActiveKeys->clear(); |
|
|
|
|
201 |
// reset disk thread |
// reset disk thread |
202 |
if (pDiskThread) pDiskThread->Reset(); |
if (pDiskThread) pDiskThread->Reset(); |
203 |
|
|
206 |
} |
} |
207 |
|
|
208 |
/** |
/** |
209 |
* Load an instrument from a .gig file. |
* Reset to normal, chromatic scale (means equal tempered). |
|
* |
|
|
* @param FileName - file name of the Gigasampler instrument file |
|
|
* @param Instrument - index of the instrument in the .gig file |
|
|
* @throws LinuxSamplerException on error |
|
|
* @returns detailed description of the method call result |
|
|
*/ |
|
|
void Engine::LoadInstrument(const char* FileName, uint Instrument) { |
|
|
|
|
|
DisableAndLock(); |
|
|
|
|
|
ResetInternal(); // reset engine |
|
|
|
|
|
// free old instrument |
|
|
if (pInstrument) { |
|
|
// give old instrument back to instrument manager |
|
|
Instruments.HandBack(pInstrument, this); |
|
|
} |
|
|
|
|
|
InstrumentFile = FileName; |
|
|
InstrumentIdx = Instrument; |
|
|
InstrumentStat = 0; |
|
|
|
|
|
// delete all key groups |
|
|
ActiveKeyGroups.clear(); |
|
|
|
|
|
// request gig instrument from instrument manager |
|
|
try { |
|
|
instrument_id_t instrid; |
|
|
instrid.FileName = FileName; |
|
|
instrid.iInstrument = Instrument; |
|
|
pInstrument = Instruments.Borrow(instrid, this); |
|
|
if (!pInstrument) { |
|
|
InstrumentStat = -1; |
|
|
dmsg(1,("no instrument loaded!!!\n")); |
|
|
exit(EXIT_FAILURE); |
|
|
} |
|
|
} |
|
|
catch (RIFF::Exception e) { |
|
|
InstrumentStat = -2; |
|
|
String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message; |
|
|
throw LinuxSamplerException(msg); |
|
|
} |
|
|
catch (InstrumentResourceManagerException e) { |
|
|
InstrumentStat = -3; |
|
|
String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message(); |
|
|
throw LinuxSamplerException(msg); |
|
|
} |
|
|
catch (...) { |
|
|
InstrumentStat = -4; |
|
|
throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file."); |
|
|
} |
|
|
|
|
|
// rebuild ActiveKeyGroups map with key groups of current instrument |
|
|
for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion()) |
|
|
if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL; |
|
|
|
|
|
InstrumentStat = 100; |
|
|
|
|
|
// inform audio driver for the need of two channels |
|
|
try { |
|
|
if (pAudioOutputDevice) pAudioOutputDevice->AcquireChannels(2); // gig Engine only stereo |
|
|
} |
|
|
catch (AudioOutputException e) { |
|
|
String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message(); |
|
|
throw LinuxSamplerException(msg); |
|
|
} |
|
|
|
|
|
Enable(); |
|
|
} |
|
|
|
|
|
/** |
|
|
* Will be called by the InstrumentResourceManager when the instrument |
|
|
* we are currently using in this engine is going to be updated, so we |
|
|
* can stop playback before that happens. |
|
210 |
*/ |
*/ |
211 |
void Engine::ResourceToBeUpdated(::gig::Instrument* pResource, void*& pUpdateArg) { |
void Engine::ResetScaleTuning() { |
212 |
dmsg(3,("gig::Engine: Received instrument update message.\n")); |
memset(&ScaleTuning[0], 0x00, 12); |
|
DisableAndLock(); |
|
|
ResetInternal(); |
|
|
this->pInstrument = NULL; |
|
213 |
} |
} |
214 |
|
|
215 |
/** |
/** |
216 |
* Will be called by the InstrumentResourceManager when the instrument |
* Connect this engine instance with the given audio output device. |
217 |
* update process was completed, so we can continue with playback. |
* This method will be called when an Engine instance is created. |
218 |
|
* All of the engine's data structures which are dependant to the used |
219 |
|
* audio output device / driver will be (re)allocated and / or |
220 |
|
* adjusted appropriately. |
221 |
|
* |
222 |
|
* @param pAudioOut - audio output device to connect to |
223 |
*/ |
*/ |
|
void Engine::ResourceUpdated(::gig::Instrument* pOldResource, ::gig::Instrument* pNewResource, void* pUpdateArg) { |
|
|
this->pInstrument = pNewResource; //TODO: there are couple of engine parameters we should update here as well if the instrument was updated (see LoadInstrument()) |
|
|
Enable(); |
|
|
} |
|
|
|
|
224 |
void Engine::Connect(AudioOutputDevice* pAudioOut) { |
void Engine::Connect(AudioOutputDevice* pAudioOut) { |
225 |
pAudioOutputDevice = pAudioOut; |
pAudioOutputDevice = pAudioOut; |
226 |
|
|
235 |
throw LinuxSamplerException(msg); |
throw LinuxSamplerException(msg); |
236 |
} |
} |
237 |
|
|
238 |
this->AudioDeviceChannelLeft = 0; |
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
239 |
this->AudioDeviceChannelRight = 1; |
this->SampleRate = pAudioOutputDevice->SampleRate(); |
|
this->pOutputLeft = pAudioOutputDevice->Channel(0)->Buffer(); |
|
|
this->pOutputRight = pAudioOutputDevice->Channel(1)->Buffer(); |
|
|
this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); |
|
|
this->SampleRate = pAudioOutputDevice->SampleRate(); |
|
240 |
|
|
241 |
// FIXME: audio drivers with varying fragment sizes might be a problem here |
// FIXME: audio drivers with varying fragment sizes might be a problem here |
242 |
MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * EG_MIN_RELEASE_TIME) - 1; |
MaxFadeOutPos = MaxSamplesPerCycle - int(double(SampleRate) * CONFIG_EG_MIN_RELEASE_TIME) - 1; |
243 |
if (MaxFadeOutPos < 0) |
if (MaxFadeOutPos < 0) |
244 |
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!"); |
245 |
|
|
246 |
// (re)create disk thread |
// (re)create disk thread |
247 |
if (this->pDiskThread) { |
if (this->pDiskThread) { |
250 |
delete this->pDiskThread; |
delete this->pDiskThread; |
251 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
252 |
} |
} |
253 |
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 |
254 |
if (!pDiskThread) { |
if (!pDiskThread) { |
255 |
dmsg(0,("gig::Engine new diskthread = NULL\n")); |
dmsg(0,("gig::Engine new diskthread = NULL\n")); |
256 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
268 |
|
|
269 |
// (re)allocate synthesis parameter matrix |
// (re)allocate synthesis parameter matrix |
270 |
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
if (pSynthesisParameters[0]) free(pSynthesisParameters[0]); |
271 |
|
|
272 |
|
#if defined(__APPLE__) |
273 |
|
pSynthesisParameters[0] = (float *) malloc(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle()); |
274 |
|
#else |
275 |
pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle())); |
pSynthesisParameters[0] = (float *) memalign(16,(Event::destination_count * sizeof(float) * pAudioOut->MaxSamplesPerCycle())); |
276 |
|
#endif |
277 |
for (int dst = 1; dst < Event::destination_count; dst++) |
for (int dst = 1; dst < Event::destination_count; dst++) |
278 |
pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
pSynthesisParameters[dst] = pSynthesisParameters[dst - 1] + pAudioOut->MaxSamplesPerCycle(); |
279 |
|
|
295 |
} |
} |
296 |
} |
} |
297 |
|
|
298 |
void Engine::DisconnectAudioOutputDevice() { |
/** |
299 |
if (pAudioOutputDevice) { // if clause to prevent disconnect loops |
* Clear all engine global event lists. |
300 |
AudioOutputDevice* olddevice = pAudioOutputDevice; |
*/ |
301 |
pAudioOutputDevice = NULL; |
void Engine::ClearEventLists() { |
302 |
olddevice->Disconnect(this); |
pGlobalEvents->clear(); |
303 |
AudioDeviceChannelLeft = -1; |
} |
304 |
AudioDeviceChannelRight = -1; |
|
305 |
|
/** |
306 |
|
* Copy all events from the engine's global input queue buffer to the |
307 |
|
* engine's internal event list. This will be done at the beginning of |
308 |
|
* each audio cycle (that is each RenderAudio() call) to distinguish |
309 |
|
* all global events which have to be processed in the current audio |
310 |
|
* cycle. These events are usually just SysEx messages. Every |
311 |
|
* EngineChannel has it's own input event queue buffer and event list |
312 |
|
* to handle common events like NoteOn, NoteOff and ControlChange |
313 |
|
* events. |
314 |
|
* |
315 |
|
* @param Samples - number of sample points to be processed in the |
316 |
|
* current audio cycle |
317 |
|
*/ |
318 |
|
void Engine::ImportEvents(uint Samples) { |
319 |
|
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
320 |
|
Event* pEvent; |
321 |
|
while (true) { |
322 |
|
// get next event from input event queue |
323 |
|
if (!(pEvent = eventQueueReader.pop())) break; |
324 |
|
// if younger event reached, ignore that and all subsequent ones for now |
325 |
|
if (pEvent->FragmentPos() >= Samples) { |
326 |
|
eventQueueReader--; |
327 |
|
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
328 |
|
pEvent->ResetFragmentPos(); |
329 |
|
break; |
330 |
|
} |
331 |
|
// copy event to internal event list |
332 |
|
if (pGlobalEvents->poolIsEmpty()) { |
333 |
|
dmsg(1,("Event pool emtpy!\n")); |
334 |
|
break; |
335 |
|
} |
336 |
|
*pGlobalEvents->allocAppend() = *pEvent; |
337 |
} |
} |
338 |
|
eventQueueReader.free(); // free all copied events from input queue |
339 |
} |
} |
340 |
|
|
341 |
/** |
/** |
351 |
int Engine::RenderAudio(uint Samples) { |
int Engine::RenderAudio(uint Samples) { |
352 |
dmsg(5,("RenderAudio(Samples=%d)\n", Samples)); |
dmsg(5,("RenderAudio(Samples=%d)\n", Samples)); |
353 |
|
|
354 |
// return if no instrument loaded or engine disabled |
// return if engine disabled |
355 |
if (EngineDisabled.Pop()) { |
if (EngineDisabled.Pop()) { |
356 |
dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); |
dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe())); |
357 |
return 0; |
return 0; |
358 |
} |
} |
|
if (!pInstrument) { |
|
|
dmsg(5,("gig::Engine: no instrument loaded\n")); |
|
|
return 0; |
|
|
} |
|
|
|
|
359 |
|
|
360 |
// 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) |
361 |
pEventGenerator->UpdateFragmentTime(Samples); |
pEventGenerator->UpdateFragmentTime(Samples); |
362 |
|
|
363 |
|
// get all events from the engine's global input event queue which belong to the current fragment |
364 |
|
// (these are usually just SysEx messages) |
365 |
|
ImportEvents(Samples); |
366 |
|
|
367 |
// 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(); |
|
|
} |
|
368 |
{ |
{ |
369 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<Event>::Iterator itEvent = pGlobalEvents->first(); |
370 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
RTList<Event>::Iterator end = pGlobalEvents->end(); |
371 |
for(; iuiKey != end; ++iuiKey) { |
for (; itEvent != end; ++itEvent) { |
372 |
pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
switch (itEvent->Type) { |
373 |
|
case Event::type_sysex: |
374 |
|
dmsg(5,("Engine: Sysex received\n")); |
375 |
|
ProcessSysex(itEvent); |
376 |
|
break; |
377 |
|
} |
378 |
} |
} |
379 |
} |
} |
380 |
|
|
381 |
|
// We only allow a maximum of CONFIG_MAX_VOICES voices to be stolen |
382 |
|
// in each audio fragment. All subsequent request for spawning new |
383 |
|
// voices in the same audio fragment will be ignored. |
384 |
|
VoiceTheftsLeft = CONFIG_MAX_VOICES; |
385 |
|
|
386 |
// get all events from the input event queue which belong to the current fragment |
// reset internal voice counter (just for statistic of active voices) |
387 |
{ |
ActiveVoiceCountTemp = 0; |
388 |
RingBuffer<Event>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
|
389 |
Event* pEvent; |
|
390 |
while (true) { |
// handle events on all engine channels |
391 |
// get next event from input event queue |
for (int i = 0; i < engineChannels.size(); i++) { |
392 |
if (!(pEvent = eventQueueReader.pop())) break; |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
393 |
// if younger event reached, ignore that and all subsequent ones for now |
ProcessEvents(engineChannels[i], Samples); |
394 |
if (pEvent->FragmentPos() >= Samples) { |
} |
395 |
eventQueueReader--; |
|
396 |
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
// render all 'normal', active voices on all engine channels |
397 |
pEvent->ResetFragmentPos(); |
for (int i = 0; i < engineChannels.size(); i++) { |
398 |
break; |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
399 |
} |
RenderActiveVoices(engineChannels[i], Samples); |
400 |
// copy event to internal event list |
} |
401 |
if (pEvents->poolIsEmpty()) { |
|
402 |
dmsg(1,("Event pool emtpy!\n")); |
// now that all ordinary voices on ALL engine channels are rendered, render new stolen voices |
403 |
break; |
RenderStolenVoices(Samples); |
404 |
} |
|
405 |
*pEvents->allocAppend() = *pEvent; |
// handle cleanup on all engine channels for the next audio fragment |
406 |
} |
for (int i = 0; i < engineChannels.size(); i++) { |
407 |
eventQueueReader.free(); // free all copied events from input queue |
if (!engineChannels[i]->pInstrument) continue; // ignore if no instrument loaded |
408 |
|
PostProcess(engineChannels[i]); |
409 |
} |
} |
410 |
|
|
411 |
|
|
412 |
|
// empty the engine's event list for the next audio fragment |
413 |
|
ClearEventLists(); |
414 |
|
|
415 |
|
// reset voice stealing for the next audio fragment |
416 |
|
pVoiceStealingQueue->clear(); |
417 |
|
|
418 |
|
// just some statistics about this engine instance |
419 |
|
ActiveVoiceCount = ActiveVoiceCountTemp; |
420 |
|
if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount; |
421 |
|
|
422 |
|
FrameTime += Samples; |
423 |
|
|
424 |
|
return 0; |
425 |
|
} |
426 |
|
|
427 |
|
/** |
428 |
|
* Dispatch and handle all events in this audio fragment for the given |
429 |
|
* engine channel. |
430 |
|
* |
431 |
|
* @param pEngineChannel - engine channel on which events should be |
432 |
|
* processed |
433 |
|
* @param Samples - amount of sample points to be processed in |
434 |
|
* this audio fragment cycle |
435 |
|
*/ |
436 |
|
void Engine::ProcessEvents(EngineChannel* pEngineChannel, uint Samples) { |
437 |
|
// get all events from the engine channels's input event queue which belong to the current fragment |
438 |
|
// (these are the common events like NoteOn, NoteOff, ControlChange, etc.) |
439 |
|
pEngineChannel->ImportEvents(Samples); |
440 |
|
|
441 |
// process events |
// process events |
442 |
{ |
{ |
443 |
RTList<Event>::Iterator itEvent = pEvents->first(); |
RTList<Event>::Iterator itEvent = pEngineChannel->pEvents->first(); |
444 |
RTList<Event>::Iterator end = pEvents->end(); |
RTList<Event>::Iterator end = pEngineChannel->pEvents->end(); |
445 |
for (; itEvent != end; ++itEvent) { |
for (; itEvent != end; ++itEvent) { |
446 |
switch (itEvent->Type) { |
switch (itEvent->Type) { |
447 |
case Event::type_note_on: |
case Event::type_note_on: |
448 |
dmsg(5,("Engine: Note on received\n")); |
dmsg(5,("Engine: Note on received\n")); |
449 |
ProcessNoteOn(itEvent); |
ProcessNoteOn((EngineChannel*)itEvent->pEngineChannel, itEvent); |
450 |
break; |
break; |
451 |
case Event::type_note_off: |
case Event::type_note_off: |
452 |
dmsg(5,("Engine: Note off received\n")); |
dmsg(5,("Engine: Note off received\n")); |
453 |
ProcessNoteOff(itEvent); |
ProcessNoteOff((EngineChannel*)itEvent->pEngineChannel, itEvent); |
454 |
break; |
break; |
455 |
case Event::type_control_change: |
case Event::type_control_change: |
456 |
dmsg(5,("Engine: MIDI CC received\n")); |
dmsg(5,("Engine: MIDI CC received\n")); |
457 |
ProcessControlChange(itEvent); |
ProcessControlChange((EngineChannel*)itEvent->pEngineChannel, itEvent); |
458 |
break; |
break; |
459 |
case Event::type_pitchbend: |
case Event::type_pitchbend: |
460 |
dmsg(5,("Engine: Pitchbend received\n")); |
dmsg(5,("Engine: Pitchbend received\n")); |
461 |
ProcessPitchbend(itEvent); |
ProcessPitchbend((EngineChannel*)itEvent->pEngineChannel, itEvent); |
|
break; |
|
|
case Event::type_sysex: |
|
|
dmsg(5,("Engine: Sysex received\n")); |
|
|
ProcessSysex(itEvent); |
|
462 |
break; |
break; |
463 |
} |
} |
464 |
} |
} |
465 |
} |
} |
466 |
|
|
467 |
|
// reset voice stealing for the next engine channel (or next audio fragment) |
468 |
|
itLastStolenVoice = RTList<Voice>::Iterator(); |
469 |
|
itLastStolenVoiceGlobally = RTList<Voice>::Iterator(); |
470 |
|
iuiLastStolenKey = RTList<uint>::Iterator(); |
471 |
|
iuiLastStolenKeyGlobally = RTList<uint>::Iterator(); |
472 |
|
pLastStolenChannel = NULL; |
473 |
|
} |
474 |
|
|
475 |
int active_voices = 0; |
/** |
476 |
|
* Render all 'normal' voices (that is voices which were not stolen in |
477 |
// render audio from all active voices |
* this fragment) on the given engine channel. |
478 |
{ |
* |
479 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
* @param pEngineChannel - engine channel on which audio should be |
480 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
* rendered |
481 |
while (iuiKey != end) { // iterate through all active keys |
* @param Samples - amount of sample points to be rendered in |
482 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
* this audio fragment cycle |
483 |
++iuiKey; |
*/ |
484 |
|
void Engine::RenderActiveVoices(EngineChannel* pEngineChannel, uint Samples) { |
485 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
486 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
487 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
while (iuiKey != end) { // iterate through all active keys |
488 |
// now render current voice |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
489 |
itVoice->Render(Samples); |
++iuiKey; |
490 |
if (itVoice->IsActive()) active_voices++; // still active |
|
491 |
else { // voice reached end, is now inactive |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
492 |
FreeVoice(itVoice); // remove voice from the list of active voices |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
493 |
} |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
494 |
|
// now render current voice |
495 |
|
itVoice->Render(Samples); |
496 |
|
if (itVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
497 |
|
else { // voice reached end, is now inactive |
498 |
|
FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices |
499 |
} |
} |
500 |
} |
} |
501 |
} |
} |
502 |
|
} |
503 |
|
|
504 |
|
/** |
505 |
// now render all postponed voices from voice stealing |
* Render all stolen voices (only voices which were stolen in this |
506 |
{ |
* fragment) on the given engine channel. Stolen voices are rendered |
507 |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
* after all normal voices have been rendered; this is needed to render |
508 |
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
* audio of those voices which were selected for voice stealing until |
509 |
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
* the point were the stealing (that is the take over of the voice) |
510 |
Pool<Voice>::Iterator itNewVoice = LaunchVoice(itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
* actually happened. |
511 |
if (itNewVoice) { |
* |
512 |
for (; itNewVoice; itNewVoice = itNewVoice->itChildVoice) { |
* @param pEngineChannel - engine channel on which audio should be |
513 |
itNewVoice->Render(Samples); |
* rendered |
514 |
if (itNewVoice->IsActive()) active_voices++; // still active |
* @param Samples - amount of sample points to be rendered in |
515 |
else { // voice reached end, is now inactive |
* this audio fragment cycle |
516 |
FreeVoice(itNewVoice); // remove voice from the list of active voices |
*/ |
517 |
} |
void Engine::RenderStolenVoices(uint Samples) { |
518 |
} |
RTList<Event>::Iterator itVoiceStealEvent = pVoiceStealingQueue->first(); |
519 |
|
RTList<Event>::Iterator end = pVoiceStealingQueue->end(); |
520 |
|
for (; itVoiceStealEvent != end; ++itVoiceStealEvent) { |
521 |
|
EngineChannel* pEngineChannel = (EngineChannel*) itVoiceStealEvent->pEngineChannel; |
522 |
|
Pool<Voice>::Iterator itNewVoice = |
523 |
|
LaunchVoice(pEngineChannel, itVoiceStealEvent, itVoiceStealEvent->Param.Note.Layer, itVoiceStealEvent->Param.Note.ReleaseTrigger, false); |
524 |
|
if (itNewVoice) { |
525 |
|
itNewVoice->Render(Samples); |
526 |
|
if (itNewVoice->IsActive()) ActiveVoiceCountTemp++; // still active |
527 |
|
else { // voice reached end, is now inactive |
528 |
|
FreeVoice(pEngineChannel, itNewVoice); // remove voice from the list of active voices |
529 |
} |
} |
|
else dmsg(1,("gig::Engine: ERROR, voice stealing didn't work out!\n")); |
|
530 |
} |
} |
531 |
} |
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(); |
|
532 |
|
|
533 |
|
// we need to clear the key's event list explicitly here in case key was never active |
534 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoiceStealEvent->Param.Note.Key]; |
535 |
|
pKey->VoiceTheftsQueued--; |
536 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->clear(); |
537 |
|
} |
538 |
|
} |
539 |
|
|
540 |
|
/** |
541 |
|
* Free all keys which have turned inactive in this audio fragment, from |
542 |
|
* the list of active keys and clear all event lists on that engine |
543 |
|
* channel. |
544 |
|
* |
545 |
|
* @param pEngineChannel - engine channel to cleanup |
546 |
|
*/ |
547 |
|
void Engine::PostProcess(EngineChannel* pEngineChannel) { |
548 |
// free all keys which have no active voices left |
// free all keys which have no active voices left |
549 |
{ |
{ |
550 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
551 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
552 |
while (iuiKey != end) { // iterate through all active keys |
while (iuiKey != end) { // iterate through all active keys |
553 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
554 |
++iuiKey; |
++iuiKey; |
555 |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey); |
if (pKey->pActiveVoices->isEmpty()) FreeKey(pEngineChannel, pKey); |
556 |
#if DEVMODE |
#if CONFIG_DEVMODE |
557 |
else { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
else { // just a sanity check for debugging |
558 |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
559 |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
560 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
563 |
} |
} |
564 |
} |
} |
565 |
} |
} |
566 |
#endif // DEVMODE |
#endif // CONFIG_DEVMODE |
567 |
} |
} |
568 |
} |
} |
569 |
|
|
570 |
|
// empty the engine channel's own event lists |
571 |
// 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!")); |
|
572 |
} |
} |
573 |
|
|
574 |
/** |
/** |
582 |
Event event = pEventGenerator->CreateEvent(); |
Event event = pEventGenerator->CreateEvent(); |
583 |
event.Type = Event::type_sysex; |
event.Type = Event::type_sysex; |
584 |
event.Param.Sysex.Size = Size; |
event.Param.Sysex.Size = Size; |
585 |
|
event.pEngineChannel = NULL; // as Engine global event |
586 |
if (pEventQueue->write_space() > 0) { |
if (pEventQueue->write_space() > 0) { |
587 |
if (pSysexBuffer->write_space() >= Size) { |
if (pSysexBuffer->write_space() >= Size) { |
588 |
// copy sysex data to input buffer |
// copy sysex data to input buffer |
598 |
// finally place sysex event into input event queue |
// finally place sysex event into input event queue |
599 |
pEventQueue->push(&event); |
pEventQueue->push(&event); |
600 |
} |
} |
601 |
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)); |
602 |
} |
} |
603 |
else dmsg(1,("Engine: Input event queue full!")); |
else dmsg(1,("Engine: Input event queue full!")); |
604 |
} |
} |
606 |
/** |
/** |
607 |
* Assigns and triggers a new voice for the respective MIDI key. |
* Assigns and triggers a new voice for the respective MIDI key. |
608 |
* |
* |
609 |
|
* @param pEngineChannel - engine channel on which this event occured on |
610 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
611 |
*/ |
*/ |
612 |
void Engine::ProcessNoteOn(Pool<Event>::Iterator& itNoteOnEvent) { |
void Engine::ProcessNoteOn(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
613 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
|
614 |
|
const int key = itNoteOnEvent->Param.Note.Key; |
615 |
|
|
616 |
|
// Change key dimension value if key is in keyswitching area |
617 |
|
{ |
618 |
|
const ::gig::Instrument* pInstrument = pEngineChannel->pInstrument; |
619 |
|
if (key >= pInstrument->DimensionKeyRange.low && key <= pInstrument->DimensionKeyRange.high) |
620 |
|
pEngineChannel->CurrentKeyDimension = ((key - pInstrument->DimensionKeyRange.low) * 128) / |
621 |
|
(pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); |
622 |
|
} |
623 |
|
|
624 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; |
625 |
|
|
626 |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
pKey->KeyPressed = true; // the MIDI key was now pressed down |
627 |
|
pKey->Velocity = itNoteOnEvent->Param.Note.Velocity; |
628 |
|
pKey->NoteOnTime = FrameTime + itNoteOnEvent->FragmentPos(); // will be used to calculate note length |
629 |
|
|
630 |
// cancel release process of voices on this key if needed |
// cancel release process of voices on this key if needed |
631 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
632 |
RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); |
RTList<Event>::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); |
633 |
if (itCancelReleaseEvent) { |
if (itCancelReleaseEvent) { |
634 |
*itCancelReleaseEvent = *itNoteOnEvent; // copy event |
*itCancelReleaseEvent = *itNoteOnEvent; // copy event |
640 |
// move note on event to the key's own event list |
// move note on event to the key's own event list |
641 |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
RTList<Event>::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); |
642 |
|
|
643 |
// allocate and trigger a new voice for the key |
// allocate and trigger new voice(s) for the key |
644 |
LaunchVoice(itNoteOnEventOnKeyList, 0, false, true); |
{ |
645 |
|
// first, get total amount of required voices (dependant on amount of layers) |
646 |
|
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOnEventOnKeyList->Param.Note.Key); |
647 |
|
if (pRegion) { |
648 |
|
int voicesRequired = pRegion->Layers; |
649 |
|
// now launch the required amount of voices |
650 |
|
for (int i = 0; i < voicesRequired; i++) |
651 |
|
LaunchVoice(pEngineChannel, itNoteOnEventOnKeyList, i, false, true); |
652 |
|
} |
653 |
|
} |
654 |
|
|
655 |
|
// if neither a voice was spawned or postponed then remove note on event from key again |
656 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) |
657 |
|
pKey->pEvents->free(itNoteOnEventOnKeyList); |
658 |
|
|
659 |
|
pKey->RoundRobinIndex++; |
660 |
} |
} |
661 |
|
|
662 |
/** |
/** |
665 |
* 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. |
666 |
* due to completion of sample playback). |
* due to completion of sample playback). |
667 |
* |
* |
668 |
|
* @param pEngineChannel - engine channel on which this event occured on |
669 |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
* @param itNoteOffEvent - key, velocity and time stamp of the event |
670 |
*/ |
*/ |
671 |
void Engine::ProcessNoteOff(Pool<Event>::Iterator& itNoteOffEvent) { |
void Engine::ProcessNoteOff(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOffEvent) { |
672 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
673 |
|
|
674 |
pKey->KeyPressed = false; // the MIDI key was now released |
pKey->KeyPressed = false; // the MIDI key was now released |
675 |
|
|
676 |
// release voices on this key if needed |
// release voices on this key if needed |
677 |
if (pKey->Active && !SustainPedal) { |
if (pKey->Active && !pEngineChannel->SustainPedal) { |
678 |
itNoteOffEvent->Type = Event::type_release; // transform event type |
itNoteOffEvent->Type = Event::type_release; // transform event type |
|
} |
|
679 |
|
|
680 |
// move event to the key's own event list |
// move event to the key's own event list |
681 |
RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); |
RTList<Event>::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); |
682 |
|
|
683 |
// spawn release triggered voice(s) if needed |
// spawn release triggered voice(s) if needed |
684 |
if (pKey->ReleaseTrigger) { |
if (pKey->ReleaseTrigger) { |
685 |
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) |
686 |
pKey->ReleaseTrigger = false; |
::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(itNoteOffEventOnKeyList->Param.Note.Key); |
687 |
|
if (pRegion) { |
688 |
|
int voicesRequired = pRegion->Layers; |
689 |
|
|
690 |
|
// MIDI note-on velocity is used instead of note-off velocity |
691 |
|
itNoteOffEventOnKeyList->Param.Note.Velocity = pKey->Velocity; |
692 |
|
|
693 |
|
// now launch the required amount of voices |
694 |
|
for (int i = 0; i < voicesRequired; i++) |
695 |
|
LaunchVoice(pEngineChannel, itNoteOffEventOnKeyList, i, true, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
696 |
|
} |
697 |
|
pKey->ReleaseTrigger = false; |
698 |
|
} |
699 |
|
|
700 |
|
// if neither a voice was spawned or postponed then remove note off event from key again |
701 |
|
if (!pKey->Active && !pKey->VoiceTheftsQueued) |
702 |
|
pKey->pEvents->free(itNoteOffEventOnKeyList); |
703 |
} |
} |
704 |
} |
} |
705 |
|
|
707 |
* Moves pitchbend event from the general (input) event list to the pitch |
* Moves pitchbend event from the general (input) event list to the pitch |
708 |
* event list. |
* event list. |
709 |
* |
* |
710 |
|
* @param pEngineChannel - engine channel on which this event occured on |
711 |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
* @param itPitchbendEvent - absolute pitch value and time stamp of the event |
712 |
*/ |
*/ |
713 |
void Engine::ProcessPitchbend(Pool<Event>::Iterator& itPitchbendEvent) { |
void Engine::ProcessPitchbend(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itPitchbendEvent) { |
714 |
this->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
pEngineChannel->Pitch = itPitchbendEvent->Param.Pitch.Pitch; // store current pitch value |
715 |
itPitchbendEvent.moveToEndOf(pSynthesisEvents[Event::destination_vco]); |
itPitchbendEvent.moveToEndOf(pEngineChannel->pSynthesisEvents[Event::destination_vco]); |
716 |
} |
} |
717 |
|
|
718 |
/** |
/** |
720 |
* called by the ProcessNoteOn() method and by the voices itself |
* called by the ProcessNoteOn() method and by the voices itself |
721 |
* (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). |
722 |
* |
* |
723 |
|
* @param pEngineChannel - engine channel on which this event occured on |
724 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
725 |
* @param iLayer - layer index for the new voice (optional - only |
* @param iLayer - layer index for the new voice (optional - only |
726 |
* in case of layered sounds of course) |
* in case of layered sounds of course) |
730 |
* when there is no free voice |
* when there is no free voice |
731 |
* (optional, default = true) |
* (optional, default = true) |
732 |
* @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 |
733 |
* if an error occured while trying to trigger the new voice |
* if the voice wasn't triggered (for example when no region is |
734 |
|
* defined for the given key). |
735 |
*/ |
*/ |
736 |
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) { |
737 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
738 |
|
|
739 |
// allocate a new voice for the key |
// allocate a new voice for the key |
740 |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
Pool<Voice>::Iterator itNewVoice = pKey->pActiveVoices->allocAppend(); |
741 |
if (itNewVoice) { |
if (itNewVoice) { |
742 |
// launch the new voice |
// launch the new voice |
743 |
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) { |
744 |
dmsg(1,("Triggering new voice failed!\n")); |
dmsg(4,("Voice not triggered\n")); |
745 |
pKey->pActiveVoices->free(itNewVoice); |
pKey->pActiveVoices->free(itNewVoice); |
746 |
} |
} |
747 |
else { // on success |
else { // on success |
748 |
uint** ppKeyGroup = NULL; |
uint** ppKeyGroup = NULL; |
749 |
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
if (itNewVoice->KeyGroup) { // if this voice / key belongs to a key group |
750 |
ppKeyGroup = &ActiveKeyGroups[itNewVoice->KeyGroup]; |
ppKeyGroup = &pEngineChannel->ActiveKeyGroups[itNewVoice->KeyGroup]; |
751 |
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 |
752 |
midi_key_info_t* pOtherKey = &pMIDIKeyInfo[**ppKeyGroup]; |
midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[**ppKeyGroup]; |
753 |
// kill all voices on the (other) key |
// kill all voices on the (other) key |
754 |
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
RTList<Voice>::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); |
755 |
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
RTList<Voice>::Iterator end = pOtherKey->pActiveVoices->end(); |
760 |
} |
} |
761 |
if (!pKey->Active) { // mark as active key |
if (!pKey->Active) { // mark as active key |
762 |
pKey->Active = true; |
pKey->Active = true; |
763 |
pKey->itSelf = pActiveKeys->allocAppend(); |
pKey->itSelf = pEngineChannel->pActiveKeys->allocAppend(); |
764 |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
*pKey->itSelf = itNoteOnEvent->Param.Note.Key; |
765 |
} |
} |
766 |
if (itNewVoice->KeyGroup) { |
if (itNewVoice->KeyGroup) { |
771 |
} |
} |
772 |
} |
} |
773 |
else if (VoiceStealing) { |
else if (VoiceStealing) { |
774 |
// first, get total amount of required voices (dependant on amount of layers) |
// try to steal one voice |
775 |
::gig::Region* pRegion = pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
int result = StealVoice(pEngineChannel, itNoteOnEvent); |
776 |
if (!pRegion) return Pool<Voice>::Iterator(); // nothing defined for this MIDI key, so no voice needed |
if (!result) { // voice stolen successfully |
777 |
int voicesRequired = pRegion->Layers; |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
778 |
|
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
779 |
// now steal the (remaining) amount of voices |
if (itStealEvent) { |
780 |
for (int i = iLayer; i < voicesRequired; i++) |
*itStealEvent = *itNoteOnEvent; // copy event |
781 |
StealVoice(itNoteOnEvent); |
itStealEvent->Param.Note.Layer = iLayer; |
782 |
|
itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
783 |
// put note-on event into voice-stealing queue, so it will be reprocessed after killed voice died |
pKey->VoiceTheftsQueued++; |
784 |
RTList<Event>::Iterator itStealEvent = pVoiceStealingQueue->allocAppend(); |
} |
785 |
if (itStealEvent) { |
else dmsg(1,("Voice stealing queue full!\n")); |
|
*itStealEvent = *itNoteOnEvent; // copy event |
|
|
itStealEvent->Param.Note.Layer = iLayer; |
|
|
itStealEvent->Param.Note.ReleaseTrigger = ReleaseTriggerVoice; |
|
786 |
} |
} |
|
else dmsg(1,("Voice stealing queue full!\n")); |
|
787 |
} |
} |
788 |
|
|
789 |
return Pool<Voice>::Iterator(); // no free voice or error |
return Pool<Voice>::Iterator(); // no free voice or error |
795 |
* voice stealing and postpone the note-on event until the selected |
* voice stealing and postpone the note-on event until the selected |
796 |
* voice actually died. |
* voice actually died. |
797 |
* |
* |
798 |
|
* @param pEngineChannel - engine channel on which this event occured on |
799 |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
* @param itNoteOnEvent - key, velocity and time stamp of the event |
800 |
|
* @returns 0 on success, a value < 0 if no active voice could be picked for voice stealing |
801 |
*/ |
*/ |
802 |
void Engine::StealVoice(Pool<Event>::Iterator& itNoteOnEvent) { |
int Engine::StealVoice(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent) { |
803 |
|
if (!VoiceTheftsLeft) { |
804 |
|
dmsg(1,("Max. voice thefts per audio fragment reached (you may raise CONFIG_MAX_VOICES).\n")); |
805 |
|
return -1; |
806 |
|
} |
807 |
if (!pEventPool->poolIsEmpty()) { |
if (!pEventPool->poolIsEmpty()) { |
808 |
|
|
809 |
RTList<uint>::Iterator iuiOldestKey; |
RTList<Voice>::Iterator itSelectedVoice; |
|
RTList<Voice>::Iterator itOldestVoice; |
|
810 |
|
|
811 |
// Select one voice for voice stealing |
// Select one voice for voice stealing |
812 |
switch (VOICE_STEAL_ALGORITHM) { |
switch (CONFIG_VOICE_STEAL_ALGO) { |
813 |
|
|
814 |
// try to pick the oldest voice on the key where the new |
// try to pick the oldest voice on the key where the new |
815 |
// voice should be spawned, if there is no voice on that |
// voice should be spawned, if there is no voice on that |
816 |
// key, or no voice left to kill there, then procceed with |
// key, or no voice left to kill, then procceed with |
817 |
// 'oldestkey' algorithm |
// 'oldestkey' algorithm |
818 |
case voice_steal_algo_keymask: { |
case voice_steal_algo_oldestvoiceonkey: { |
819 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
820 |
if (itLastStolenVoice) { |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
821 |
itOldestVoice = itLastStolenVoice; |
// proceed iterating if voice was created in this fragment cycle |
822 |
++itOldestVoice; |
while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice; |
823 |
} |
// if we haven't found a voice then proceed with algorithm 'oldestkey' |
824 |
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 |
|
|
} |
|
825 |
} // no break - intentional ! |
} // no break - intentional ! |
826 |
|
|
827 |
// try to pick the oldest voice on the oldest active key |
// try to pick the oldest voice on the oldest active key |
828 |
// (caution: must stay after 'keymask' algorithm !) |
// from the same engine channel |
829 |
|
// (caution: must stay after 'oldestvoiceonkey' algorithm !) |
830 |
case voice_steal_algo_oldestkey: { |
case voice_steal_algo_oldestkey: { |
831 |
if (itLastStolenVoice) { |
// if we already stole in this fragment, try to proceed on same key |
832 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiLastStolenKey]; |
if (this->itLastStolenVoice) { |
833 |
itOldestVoice = itLastStolenVoice; |
itSelectedVoice = this->itLastStolenVoice; |
834 |
++itOldestVoice; |
do { |
835 |
if (!itOldestVoice) { |
++itSelectedVoice; |
836 |
iuiOldestKey = iuiLastStolenKey; |
} while (itSelectedVoice && !itSelectedVoice->hasRendered()); // proceed iterating if voice was created in this fragment cycle |
837 |
++iuiOldestKey; |
// found a "stealable" voice ? |
838 |
if (iuiOldestKey) { |
if (itSelectedVoice && itSelectedVoice->hasRendered()) { |
839 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; |
// remember which voice we stole, so we can simply proceed on next voice stealing |
840 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
this->itLastStolenVoice = itSelectedVoice; |
841 |
} |
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; |
|
|
} |
|
842 |
} |
} |
|
else iuiOldestKey = iuiLastStolenKey; |
|
843 |
} |
} |
844 |
else { // no voice stolen in this audio fragment cycle yet |
// get (next) oldest key |
845 |
iuiOldestKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pEngineChannel->pActiveKeys->first(); |
846 |
midi_key_info_t* pOldestKey = &pMIDIKeyInfo[*iuiOldestKey]; |
while (iuiSelectedKey) { |
847 |
itOldestVoice = pOldestKey->pActiveVoices->first(); |
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
848 |
|
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
849 |
|
// proceed iterating if voice was created in this fragment cycle |
850 |
|
while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice; |
851 |
|
// found a "stealable" voice ? |
852 |
|
if (itSelectedVoice && itSelectedVoice->hasRendered()) { |
853 |
|
// remember which voice on which key we stole, so we can simply proceed on next voice stealing |
854 |
|
this->iuiLastStolenKey = iuiSelectedKey; |
855 |
|
this->itLastStolenVoice = itSelectedVoice; |
856 |
|
break; // selection succeeded |
857 |
|
} |
858 |
|
++iuiSelectedKey; // get next oldest key |
859 |
} |
} |
860 |
break; |
break; |
861 |
} |
} |
864 |
case voice_steal_algo_none: |
case voice_steal_algo_none: |
865 |
default: { |
default: { |
866 |
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
867 |
return; |
return -1; |
868 |
} |
} |
869 |
} |
} |
870 |
|
|
871 |
//FIXME: can be removed, just a sanity check for debugging |
// if we couldn't steal a voice from the same engine channel then |
872 |
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 |
873 |
|
// (the smaller engine channel number, the higher priority) |
874 |
|
if (!itSelectedVoice || !itSelectedVoice->hasRendered()) { |
875 |
|
EngineChannel* pSelectedChannel; |
876 |
|
int iChannelIndex; |
877 |
|
// select engine channel |
878 |
|
if (pLastStolenChannel) { |
879 |
|
pSelectedChannel = pLastStolenChannel; |
880 |
|
iChannelIndex = pSelectedChannel->iEngineIndexSelf; |
881 |
|
} else { // pick the engine channel followed by this engine channel |
882 |
|
iChannelIndex = (pEngineChannel->iEngineIndexSelf + 1) % engineChannels.size(); |
883 |
|
pSelectedChannel = engineChannels[iChannelIndex]; |
884 |
|
} |
885 |
|
// iterate through engine channels |
886 |
|
while (true) { |
887 |
|
// if we already stole in this fragment, try to proceed on same key |
888 |
|
if (this->itLastStolenVoiceGlobally) { |
889 |
|
itSelectedVoice = this->itLastStolenVoiceGlobally; |
890 |
|
do { |
891 |
|
++itSelectedVoice; |
892 |
|
} while (itSelectedVoice && !itSelectedVoice->hasRendered()); // proceed iterating if voice was created in this fragment cycle |
893 |
|
// break if selection succeeded |
894 |
|
if (itSelectedVoice && itSelectedVoice->hasRendered()) { |
895 |
|
// remember which voice we stole, so we can simply proceed on next voice stealing |
896 |
|
this->itLastStolenVoiceGlobally = itSelectedVoice; |
897 |
|
break; // selection succeeded |
898 |
|
} |
899 |
|
} |
900 |
|
// get (next) oldest key |
901 |
|
RTList<uint>::Iterator iuiSelectedKey = (this->iuiLastStolenKey) ? ++this->iuiLastStolenKey : pSelectedChannel->pActiveKeys->first(); |
902 |
|
while (iuiSelectedKey) { |
903 |
|
midi_key_info_t* pSelectedKey = &pEngineChannel->pMIDIKeyInfo[*iuiSelectedKey]; |
904 |
|
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
905 |
|
// proceed iterating if voice was created in this fragment cycle |
906 |
|
while (itSelectedVoice && !itSelectedVoice->hasRendered()) ++itSelectedVoice; |
907 |
|
// found a "stealable" voice ? |
908 |
|
if (itSelectedVoice && itSelectedVoice->hasRendered()) { |
909 |
|
// remember which voice on which key on which engine channel we stole, so we can simply proceed on next voice stealing |
910 |
|
this->iuiLastStolenKeyGlobally = iuiSelectedKey; |
911 |
|
this->itLastStolenVoiceGlobally = itSelectedVoice; |
912 |
|
this->pLastStolenChannel = pSelectedChannel; |
913 |
|
break; // selection succeeded |
914 |
|
} |
915 |
|
++iuiSelectedKey; // get next key on current engine channel |
916 |
|
} |
917 |
|
// get next engine channel |
918 |
|
iChannelIndex = (iChannelIndex + 1) % engineChannels.size(); |
919 |
|
pSelectedChannel = engineChannels[iChannelIndex]; |
920 |
|
} |
921 |
|
} |
922 |
|
|
923 |
|
#if CONFIG_DEVMODE |
924 |
|
if (!itSelectedVoice->IsActive()) { |
925 |
|
dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
926 |
|
return -1; |
927 |
|
} |
928 |
|
#endif // CONFIG_DEVMODE |
929 |
|
|
930 |
// now kill the selected voice |
// now kill the selected voice |
931 |
itOldestVoice->Kill(itNoteOnEvent); |
itSelectedVoice->Kill(itNoteOnEvent); |
932 |
// remember which voice on which key we stole, so we can simply proceed for the next voice stealing |
|
933 |
this->itLastStolenVoice = itOldestVoice; |
--VoiceTheftsLeft; |
934 |
this->iuiLastStolenKey = iuiOldestKey; |
|
935 |
|
return 0; // success |
936 |
|
} |
937 |
|
else { |
938 |
|
dmsg(1,("Event pool emtpy!\n")); |
939 |
|
return -1; |
940 |
} |
} |
|
else dmsg(1,("Event pool emtpy!\n")); |
|
941 |
} |
} |
942 |
|
|
943 |
/** |
/** |
946 |
* it finished to playback its sample, finished its release stage or |
* it finished to playback its sample, finished its release stage or |
947 |
* just was killed. |
* just was killed. |
948 |
* |
* |
949 |
|
* @param pEngineChannel - engine channel on which this event occured on |
950 |
* @param itVoice - points to the voice to be freed |
* @param itVoice - points to the voice to be freed |
951 |
*/ |
*/ |
952 |
void Engine::FreeVoice(Pool<Voice>::Iterator& itVoice) { |
void Engine::FreeVoice(EngineChannel* pEngineChannel, Pool<Voice>::Iterator& itVoice) { |
953 |
if (itVoice) { |
if (itVoice) { |
954 |
midi_key_info_t* pKey = &pMIDIKeyInfo[itVoice->MIDIKey]; |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itVoice->MIDIKey]; |
955 |
|
|
956 |
uint keygroup = itVoice->KeyGroup; |
uint keygroup = itVoice->KeyGroup; |
957 |
|
|
960 |
|
|
961 |
// 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 |
962 |
if (pKey->pActiveVoices->isEmpty() && keygroup) { |
if (pKey->pActiveVoices->isEmpty() && keygroup) { |
963 |
uint** ppKeyGroup = &ActiveKeyGroups[keygroup]; |
uint** ppKeyGroup = &pEngineChannel->ActiveKeyGroups[keygroup]; |
964 |
if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group |
if (*ppKeyGroup == &*pKey->itSelf) *ppKeyGroup = NULL; // remove key from key group |
965 |
} |
} |
966 |
} |
} |
971 |
* 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 |
972 |
* update the key info respectively. |
* update the key info respectively. |
973 |
* |
* |
974 |
|
* @param pEngineChannel - engine channel on which this event occured on |
975 |
* @param pKey - key which is now inactive |
* @param pKey - key which is now inactive |
976 |
*/ |
*/ |
977 |
void Engine::FreeKey(midi_key_info_t* pKey) { |
void Engine::FreeKey(EngineChannel* pEngineChannel, midi_key_info_t* pKey) { |
978 |
if (pKey->pActiveVoices->isEmpty()) { |
if (pKey->pActiveVoices->isEmpty()) { |
979 |
pKey->Active = false; |
pKey->Active = false; |
980 |
pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
pEngineChannel->pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
981 |
pKey->itSelf = RTList<uint>::Iterator(); |
pKey->itSelf = RTList<uint>::Iterator(); |
982 |
pKey->ReleaseTrigger = false; |
pKey->ReleaseTrigger = false; |
983 |
pKey->pEvents->clear(); |
pKey->pEvents->clear(); |
990 |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
* Reacts on supported control change commands (e.g. pitch bend wheel, |
991 |
* modulation wheel, aftertouch). |
* modulation wheel, aftertouch). |
992 |
* |
* |
993 |
|
* @param pEngineChannel - engine channel on which this event occured on |
994 |
* @param itControlChangeEvent - controller, value and time stamp of the event |
* @param itControlChangeEvent - controller, value and time stamp of the event |
995 |
*/ |
*/ |
996 |
void Engine::ProcessControlChange(Pool<Event>::Iterator& itControlChangeEvent) { |
void Engine::ProcessControlChange(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itControlChangeEvent) { |
997 |
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)); |
998 |
|
|
999 |
switch (itControlChangeEvent->Param.CC.Controller) { |
// update controller value in the engine channel's controller table |
1000 |
case 64: { |
pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
1001 |
if (itControlChangeEvent->Param.CC.Value >= 64 && !SustainPedal) { |
|
1002 |
|
// move event from the unsorted event list to the control change event list |
1003 |
|
Pool<Event>::Iterator itControlChangeEventOnCCList = itControlChangeEvent.moveToEndOf(pEngineChannel->pCCEvents); |
1004 |
|
|
1005 |
|
switch (itControlChangeEventOnCCList->Param.CC.Controller) { |
1006 |
|
case 7: { // volume |
1007 |
|
//TODO: not sample accurate yet |
1008 |
|
pEngineChannel->GlobalVolume = (float) itControlChangeEventOnCCList->Param.CC.Value / 127.0f; |
1009 |
|
pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag |
1010 |
|
break; |
1011 |
|
} |
1012 |
|
case 10: { // panpot |
1013 |
|
//TODO: not sample accurate yet |
1014 |
|
const int pan = (int) itControlChangeEventOnCCList->Param.CC.Value - 64; |
1015 |
|
pEngineChannel->GlobalPanLeft = 1.0f - float(RTMath::Max(pan, 0)) / 63.0f; |
1016 |
|
pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f; |
1017 |
|
break; |
1018 |
|
} |
1019 |
|
case 64: { // sustain |
1020 |
|
if (itControlChangeEventOnCCList->Param.CC.Value >= 64 && !pEngineChannel->SustainPedal) { |
1021 |
dmsg(4,("PEDAL DOWN\n")); |
dmsg(4,("PEDAL DOWN\n")); |
1022 |
SustainPedal = true; |
pEngineChannel->SustainPedal = true; |
1023 |
|
|
1024 |
// cancel release process of voices if necessary |
// cancel release process of voices if necessary |
1025 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1026 |
if (iuiKey) { |
for (; iuiKey; ++iuiKey) { |
1027 |
itControlChangeEvent->Type = Event::type_cancel_release; // transform event type |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1028 |
while (iuiKey) { |
if (!pKey->KeyPressed) { |
1029 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1030 |
++iuiKey; |
if (itNewEvent) { |
1031 |
if (!pKey->KeyPressed) { |
*itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list |
1032 |
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")); |
|
1033 |
} |
} |
1034 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1035 |
} |
} |
1036 |
} |
} |
1037 |
} |
} |
1038 |
if (itControlChangeEvent->Param.CC.Value < 64 && SustainPedal) { |
if (itControlChangeEventOnCCList->Param.CC.Value < 64 && pEngineChannel->SustainPedal) { |
1039 |
dmsg(4,("PEDAL UP\n")); |
dmsg(4,("PEDAL UP\n")); |
1040 |
SustainPedal = false; |
pEngineChannel->SustainPedal = false; |
1041 |
|
|
1042 |
// release voices if their respective key is not pressed |
// release voices if their respective key is not pressed |
1043 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1044 |
if (iuiKey) { |
for (; iuiKey; ++iuiKey) { |
1045 |
itControlChangeEvent->Type = Event::type_release; // transform event type |
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1046 |
while (iuiKey) { |
if (!pKey->KeyPressed) { |
1047 |
midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1048 |
++iuiKey; |
if (itNewEvent) { |
1049 |
if (!pKey->KeyPressed) { |
*itNewEvent = *itControlChangeEventOnCCList; // copy event to the key's own event list |
1050 |
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")); |
|
1051 |
} |
} |
1052 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1053 |
} |
} |
1054 |
} |
} |
1055 |
} |
} |
1056 |
break; |
break; |
1057 |
} |
} |
|
} |
|
1058 |
|
|
|
// update controller value in the engine's controller table |
|
|
ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
|
1059 |
|
|
1060 |
// move event from the unsorted event list to the control change event list |
// Channel Mode Messages |
1061 |
itControlChangeEvent.moveToEndOf(pCCEvents); |
|
1062 |
|
case 120: { // all sound off |
1063 |
|
KillAllVoices(pEngineChannel, itControlChangeEventOnCCList); |
1064 |
|
break; |
1065 |
|
} |
1066 |
|
case 121: { // reset all controllers |
1067 |
|
pEngineChannel->ResetControllers(); |
1068 |
|
break; |
1069 |
|
} |
1070 |
|
case 123: { // all notes off |
1071 |
|
ReleaseAllVoices(pEngineChannel, itControlChangeEventOnCCList); |
1072 |
|
break; |
1073 |
|
} |
1074 |
|
} |
1075 |
} |
} |
1076 |
|
|
1077 |
/** |
/** |
1089 |
|
|
1090 |
switch (id) { |
switch (id) { |
1091 |
case 0x41: { // Roland |
case 0x41: { // Roland |
1092 |
|
dmsg(3,("Roland Sysex\n")); |
1093 |
uint8_t device_id, model_id, cmd_id; |
uint8_t device_id, model_id, cmd_id; |
1094 |
if (!reader.pop(&device_id)) goto free_sysex_data; |
if (!reader.pop(&device_id)) goto free_sysex_data; |
1095 |
if (!reader.pop(&model_id)) goto free_sysex_data; |
if (!reader.pop(&model_id)) goto free_sysex_data; |
1102 |
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 |
1103 |
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
if (reader.read(&addr[0], 3) != 3) goto free_sysex_data; |
1104 |
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters |
1105 |
|
dmsg(3,("\tSystem Parameter\n")); |
1106 |
} |
} |
1107 |
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters |
1108 |
|
dmsg(3,("\tCommon Parameter\n")); |
1109 |
} |
} |
1110 |
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x10) { // Part Parameters (1) |
1111 |
switch (addr[3]) { |
dmsg(3,("\tPart Parameter\n")); |
1112 |
|
switch (addr[2]) { |
1113 |
case 0x40: { // scale tuning |
case 0x40: { // scale tuning |
1114 |
|
dmsg(3,("\t\tScale Tuning\n")); |
1115 |
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 |
1116 |
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
if (reader.read(&scale_tunes[0], 12) != 12) goto free_sysex_data; |
1117 |
uint8_t checksum; |
uint8_t checksum; |
1118 |
if (!reader.pop(&checksum)) goto free_sysex_data; |
if (!reader.pop(&checksum)) goto free_sysex_data; |
1119 |
if (GSCheckSum(checksum_reader, 12) != checksum) goto free_sysex_data; |
#if CONFIG_ASSERT_GS_SYSEX_CHECKSUM |
1120 |
|
if (GSCheckSum(checksum_reader, 12)) goto free_sysex_data; |
1121 |
|
#endif // CONFIG_ASSERT_GS_SYSEX_CHECKSUM |
1122 |
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
for (int i = 0; i < 12; i++) scale_tunes[i] -= 64; |
1123 |
AdjustScale((int8_t*) scale_tunes); |
AdjustScale((int8_t*) scale_tunes); |
1124 |
|
dmsg(3,("\t\t\tNew scale applied.\n")); |
1125 |
break; |
break; |
1126 |
} |
} |
1127 |
} |
} |
1166 |
} |
} |
1167 |
|
|
1168 |
/** |
/** |
1169 |
|
* Releases all voices on an engine channel. All voices will go into |
1170 |
|
* the release stage and thus it might take some time (e.g. dependant to |
1171 |
|
* their envelope release time) until they actually die. |
1172 |
|
* |
1173 |
|
* @param pEngineChannel - engine channel on which all voices should be released |
1174 |
|
* @param itReleaseEvent - event which caused this releasing of all voices |
1175 |
|
*/ |
1176 |
|
void Engine::ReleaseAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itReleaseEvent) { |
1177 |
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1178 |
|
while (iuiKey) { |
1179 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1180 |
|
++iuiKey; |
1181 |
|
// append a 'release' event to the key's own event list |
1182 |
|
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
1183 |
|
if (itNewEvent) { |
1184 |
|
*itNewEvent = *itReleaseEvent; // copy original event (to the key's event list) |
1185 |
|
itNewEvent->Type = Event::type_release; // transform event type |
1186 |
|
} |
1187 |
|
else dmsg(1,("Event pool emtpy!\n")); |
1188 |
|
} |
1189 |
|
} |
1190 |
|
|
1191 |
|
/** |
1192 |
|
* Kills all voices on an engine channel as soon as possible. Voices |
1193 |
|
* won't get into release state, their volume level will be ramped down |
1194 |
|
* as fast as possible. |
1195 |
|
* |
1196 |
|
* @param pEngineChannel - engine channel on which all voices should be killed |
1197 |
|
* @param itKillEvent - event which caused this killing of all voices |
1198 |
|
*/ |
1199 |
|
void Engine::KillAllVoices(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itKillEvent) { |
1200 |
|
RTList<uint>::Iterator iuiKey = pEngineChannel->pActiveKeys->first(); |
1201 |
|
RTList<uint>::Iterator end = pEngineChannel->pActiveKeys->end(); |
1202 |
|
while (iuiKey != end) { // iterate through all active keys |
1203 |
|
midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[*iuiKey]; |
1204 |
|
++iuiKey; |
1205 |
|
RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
1206 |
|
RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
1207 |
|
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
1208 |
|
itVoice->Kill(itKillEvent); |
1209 |
|
} |
1210 |
|
} |
1211 |
|
} |
1212 |
|
|
1213 |
|
/** |
1214 |
* Initialize the parameter sequence for the modulation destination given by |
* Initialize the parameter sequence for the modulation destination given by |
1215 |
* by 'dst' with the constant value given by val. |
* by 'dst' with the constant value given by val. |
1216 |
*/ |
*/ |
1225 |
} |
} |
1226 |
} |
} |
1227 |
|
|
|
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)); |
|
|
} |
|
|
} |
|
|
|
|
1228 |
uint Engine::VoiceCount() { |
uint Engine::VoiceCount() { |
1229 |
return ActiveVoiceCount; |
return ActiveVoiceCount; |
1230 |
} |
} |
1254 |
} |
} |
1255 |
|
|
1256 |
String Engine::EngineName() { |
String Engine::EngineName() { |
1257 |
return "GigEngine"; |
return LS_GIG_ENGINE_NAME; |
|
} |
|
|
|
|
|
String Engine::InstrumentFileName() { |
|
|
return InstrumentFile; |
|
|
} |
|
|
|
|
|
int Engine::InstrumentIndex() { |
|
|
return InstrumentIdx; |
|
|
} |
|
|
|
|
|
int Engine::InstrumentStatus() { |
|
|
return InstrumentStat; |
|
1258 |
} |
} |
1259 |
|
|
1260 |
String Engine::Description() { |
String Engine::Description() { |
1262 |
} |
} |
1263 |
|
|
1264 |
String Engine::Version() { |
String Engine::Version() { |
1265 |
String s = "$Revision: 1.20 $"; |
String s = "$Revision: 1.43 $"; |
1266 |
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 |
1267 |
} |
} |
1268 |
|
|