29 |
pCommandQueue = new RingBuffer<command_t>(1024); |
pCommandQueue = new RingBuffer<command_t>(1024); |
30 |
pVoices = new Voice*[MAX_AUDIO_VOICES]; |
pVoices = new Voice*[MAX_AUDIO_VOICES]; |
31 |
// allocate the ActiveVoicePool (for each midi key there is a variable size linked list |
// allocate the ActiveVoicePool (for each midi key there is a variable size linked list |
32 |
// of pointers to Voice classes) |
// of pointers to Voice objects) |
33 |
ActiveVoicePool=new RTELMemoryPool<Voice *>(MAX_AUDIO_VOICES); |
ActiveVoicePool = new RTELMemoryPool<Voice*>(MAX_AUDIO_VOICES); |
34 |
for (uint i = 0; i < MAX_AUDIO_VOICES; i++) { |
for (uint i = 0; i < MAX_AUDIO_VOICES; i++) { |
35 |
pVoices[i] = new Voice(pDiskThread); |
pVoices[i] = new Voice(pDiskThread); |
36 |
} |
} |
37 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
38 |
pActiveVoices[i] = new RTEList<Voice *>; |
pActiveVoices[i] = new RTEList<Voice*>; |
39 |
} |
} |
40 |
|
SustainedKeyPool = new RTELMemoryPool<sustained_key_t>(200); |
|
SustainedKeyPool=new RTELMemoryPool<sustained_key_t>(200); |
|
|
|
|
|
|
|
41 |
|
|
42 |
pAudioSumBuffer = new float[pAudioIO->FragmentSize * pAudioIO->Channels]; |
pAudioSumBuffer = new float[pAudioIO->FragmentSize * pAudioIO->Channels]; |
43 |
|
|
47 |
} |
} |
48 |
|
|
49 |
// cache initial samples points (for actually needed samples) |
// cache initial samples points (for actually needed samples) |
50 |
dmsg(("Caching initial samples...")); |
dmsg(1,("Caching initial samples...")); |
51 |
gig::Region* pRgn = this->pInstrument->GetFirstRegion(); |
gig::Region* pRgn = this->pInstrument->GetFirstRegion(); |
52 |
while (pRgn) { |
while (pRgn) { |
53 |
if (!pRgn->GetSample()->GetCache().Size) { |
if (!pRgn->GetSample()->GetCache().Size) { |
54 |
//printf("C"); |
dmsg(2,("C")); |
55 |
CacheInitialSamples(pRgn->GetSample()); |
CacheInitialSamples(pRgn->GetSample()); |
56 |
} |
} |
57 |
for (uint i = 0; i < pRgn->DimensionRegions; i++) { |
for (uint i = 0; i < pRgn->DimensionRegions; i++) { |
62 |
} |
} |
63 |
|
|
64 |
// sustain pedal value |
// sustain pedal value |
65 |
PrevHoldCCValue=0; |
PrevHoldCCValue = 0; |
66 |
SustainPedal=0; |
SustainPedal = 0; |
67 |
|
|
68 |
dmsg(("OK\n")); |
dmsg(1,("OK\n")); |
69 |
} |
} |
70 |
|
|
71 |
AudioThread::~AudioThread() { |
AudioThread::~AudioThread() { |
79 |
} |
} |
80 |
|
|
81 |
int AudioThread::Main() { |
int AudioThread::Main() { |
82 |
dmsg(("Audio thread running\n")); |
dmsg(2,("Audio thread running\n")); |
|
//int fifofd=open("/tmp/fifo1",O_WRONLY); |
|
83 |
|
|
84 |
while (true) { |
while (true) { |
85 |
|
|
90 |
|
|
91 |
switch (command.type) { |
switch (command.type) { |
92 |
case command_type_note_on: |
case command_type_note_on: |
93 |
dmsg(("Audio Thread: Note on received\n")); |
dmsg(5,("Audio Thread: Note on received\n")); |
94 |
ActivateVoice(command.pitch, command.velocity); |
ActivateVoice(command.pitch, command.velocity); |
95 |
break; |
break; |
96 |
case command_type_note_off: |
case command_type_note_off: |
97 |
dmsg(("Audio Thread: Note off received\n")); |
dmsg(5,("Audio Thread: Note off received\n")); |
98 |
ReleaseVoice(command.pitch, command.velocity); |
ReleaseVoice(command.pitch, command.velocity); |
99 |
break; |
break; |
100 |
case command_type_continuous_controller: |
case command_type_continuous_controller: |
101 |
dmsg(("Audio Thread: MIDI CC received\n")); |
dmsg(5,("Audio Thread: MIDI CC received\n")); |
102 |
ContinuousController(command.channel, command.number, command.value); |
ContinuousController(command.channel, command.number, command.value); |
103 |
break; |
break; |
104 |
} |
} |
112 |
|
|
113 |
|
|
114 |
// render audio from all active voices |
// render audio from all active voices |
115 |
int act_voices=0; |
int active_voices = 0; |
116 |
for (uint i = 0; i < MAX_AUDIO_VOICES; i++) { |
for (uint i = 0; i < MAX_AUDIO_VOICES; i++) { |
117 |
if (pVoices[i]->IsActive()) { |
if (pVoices[i]->IsActive()) { |
118 |
pVoices[i]->RenderAudio(); |
pVoices[i]->RenderAudio(); |
119 |
act_voices++; |
if (pVoices[i]->IsActive()) active_voices++; // still active |
120 |
|
else { // voice reached end, is now inactive |
121 |
|
ReleaseVoice(pVoices[i]); // remove voice from the list of active voices |
122 |
|
} |
123 |
} |
} |
124 |
} |
} |
125 |
// write that to the disk thread class so that it can print it |
// write that to the disk thread class so that it can print it |
126 |
// on the console for debugging purposes |
// on the console for debugging purposes |
127 |
ActiveVoiceCount=act_voices; |
ActiveVoiceCount = active_voices; |
128 |
|
|
129 |
|
|
130 |
// check clipping in the audio sum, convert to sample_type |
// check clipping in the audio sum, convert to sample_type |
141 |
// call audio driver to output sound |
// call audio driver to output sound |
142 |
int res = this->pAudioIO->Output(); |
int res = this->pAudioIO->Output(); |
143 |
if (res < 0) exit(EXIT_FAILURE); |
if (res < 0) exit(EXIT_FAILURE); |
|
|
|
|
// FIXME remove because we use it only to write to a fifo to save the audio |
|
|
//write(fifofd, pAudioIO->pOutputBuffer, pAudioIO->FragmentSize * pAudioIO->Channels * sizeof(short)); |
|
|
|
|
144 |
} |
} |
145 |
} |
} |
146 |
|
|
172 |
this->pCommandQueue->write(&cmd, 1); |
this->pCommandQueue->write(&cmd, 1); |
173 |
} |
} |
174 |
|
|
|
|
|
175 |
void AudioThread::ActivateVoice(uint8_t MIDIKey, uint8_t Velocity) { |
void AudioThread::ActivateVoice(uint8_t MIDIKey, uint8_t Velocity) { |
176 |
for (int i = 0; i < MAX_AUDIO_VOICES; i++) { |
for (int i = 0; i < MAX_AUDIO_VOICES; i++) { |
177 |
if (pVoices[i]->IsActive()) continue; |
if (pVoices[i]->IsActive()) continue; |
178 |
pVoices[i]->Trigger(MIDIKey, Velocity, this->pInstrument); |
pVoices[i]->Trigger(MIDIKey, Velocity, this->pInstrument); |
179 |
// add (append) a new voice to the corresponding MIDIKey active voices list |
// add (append) a new voice to the corresponding MIDIKey active voices list |
180 |
Voice **new_voice_ptr=ActiveVoicePool->alloc_append(pActiveVoices[MIDIKey]); |
Voice** new_voice_ptr = ActiveVoicePool->alloc_append(pActiveVoices[MIDIKey]); |
181 |
*new_voice_ptr=pVoices[i]; |
*new_voice_ptr = pVoices[i]; |
182 |
|
pVoices[i]->pSelfPtr = new_voice_ptr; // FIXME: hack to allow fast deallocation |
183 |
return; |
return; |
184 |
} |
} |
185 |
std::cerr << "No free voice!" << std::endl << std::flush; |
std::cerr << "No free voice!" << std::endl << std::flush; |
186 |
} |
} |
187 |
|
|
188 |
void AudioThread::ReleaseVoice(uint8_t MIDIKey, uint8_t Velocity) { |
void AudioThread::ReleaseVoice(uint8_t MIDIKey, uint8_t Velocity) { |
189 |
|
// if sustain pedal is pressed postpone the Note-Off |
190 |
|
if (SustainPedal) { |
191 |
|
// alloc an element in the SustainedKeyPool and add the current midikey to it |
192 |
|
sustained_key_t* key = SustainedKeyPool->alloc(); |
193 |
|
if (key == NULL) printf("ERROR: SustainedKeyPool FULL ! exiting\n"); // FIXME |
194 |
|
key->midikey = MIDIKey; |
195 |
|
key->velocity = Velocity; |
196 |
|
} |
197 |
|
else { |
198 |
|
// get the first voice in the list of active voices on the MIDI Key |
199 |
|
Voice** pVoicePtr = pActiveVoices[MIDIKey]->first(); |
200 |
|
if (pVoicePtr) ReleaseVoice(*pVoicePtr); |
201 |
|
else std::cerr << "Couldn't find active voice for note off command!" << std::endl << std::flush; |
202 |
|
} |
203 |
|
} |
204 |
|
|
205 |
|
void AudioThread::ReleaseVoice(Voice* pVoice) { |
|
// get the first voice in the list of active voices on the MIDI Key |
|
|
Voice** pVoicePtr = pActiveVoices[MIDIKey]->first(); |
|
|
Voice *pVoice=*pVoicePtr; |
|
|
|
|
206 |
if (pVoice) { |
if (pVoice) { |
207 |
|
if (pVoice->IsActive()) pVoice->Kill(); //TODO: for now we're rude and just kill the poor, poor voice immediately :), later we add a Release() method to the Voice class and call it here to let the voice go through it's release phase |
|
// if sustain pedal is pressed postpone the Note-Off |
|
|
if(SustainPedal) { |
|
|
// alloc an element in the SustainedKeyPool and add the current midikey to it |
|
|
sustained_key_t *key=SustainedKeyPool->alloc(); |
|
|
if(key == NULL) { /* FIXME */ printf("ERROR: SustainedKeyPool FULL ! exiting\n"); exit(0); } |
|
|
key->midikey=MIDIKey; |
|
|
key->velocity=Velocity; |
|
|
return; |
|
|
} |
|
|
|
|
|
pVoice->Kill(); //TODO: for now we're rude and just kill the poor, poor voice immediately :), later we add a Release() method to the Voice class and call it here to let the voice go through it's release phase |
|
208 |
|
|
209 |
// remove the voice from the list associated to this MIDI key |
// remove the voice from the list associated to this MIDI key |
210 |
ActiveVoicePool->free(pVoicePtr); |
ActiveVoicePool->free(pVoice->pSelfPtr); |
211 |
} |
} |
212 |
else std::cerr << "Couldn't find active voice for note off command!" << std::endl << std::flush; |
else std::cerr << "Couldn't find active voice to release!" << std::endl << std::flush; |
213 |
} |
} |
214 |
|
|
215 |
void AudioThread::ContinuousController(uint8_t Channel, uint8_t Number, uint8_t Value) { |
void AudioThread::ContinuousController(uint8_t Channel, uint8_t Number, uint8_t Value) { |
216 |
//printf("AudioThread::ContinuousController c=%d n=%d v=%d\n",Channel, Number, Value); |
dmsg(4,("AudioThread::ContinuousController c=%d n=%d v=%d\n", Channel, Number, Value)); |
217 |
if(Number == 64) { |
if (Number == 64) { |
218 |
if(Value >=64 && PrevHoldCCValue < 64) { |
if (Value >= 64 && PrevHoldCCValue < 64) { |
219 |
//printf("PEDAL DOWN\n"); |
dmsg(4,("PEDAL DOWN\n")); |
220 |
SustainPedal=1; |
SustainPedal = true; |
221 |
} |
} |
222 |
if(Value < 64 && PrevHoldCCValue >=64) { |
if (Value < 64 && PrevHoldCCValue >= 64) { |
223 |
//printf("PEDAL UP\n"); |
dmsg(4,("PEDAL UP\n")); |
224 |
SustainPedal=0; |
SustainPedal = false; |
225 |
sustained_key_t *key; |
for (sustained_key_t* key = SustainedKeyPool->first(); key; key = SustainedKeyPool->next()) { |
226 |
for(key = SustainedKeyPool->first(); key ; key=SustainedKeyPool->next() ) { |
ReleaseVoice(key->midikey, key->velocity); |
227 |
ReleaseVoice(key->midikey, key->velocity); |
} |
228 |
} |
// empty the SustainedKeyPool (free all the elements) |
229 |
// empty the SustainedKeyPool (free all the elements) |
SustainedKeyPool->empty(); |
230 |
SustainedKeyPool->empty(); |
} |
231 |
|
PrevHoldCCValue = Value; |
|
|
|
232 |
} |
} |
|
PrevHoldCCValue=Value; |
|
|
} |
|
|
|
|
233 |
} |
} |
234 |
|
|
|
|
|
235 |
void AudioThread::CacheInitialSamples(gig::Sample* pSample) { |
void AudioThread::CacheInitialSamples(gig::Sample* pSample) { |
236 |
if (!pSample || pSample->GetCache().Size) return; |
if (!pSample || pSample->GetCache().Size) return; |
237 |
if (pSample->SamplesTotal <= NUM_RAM_PRELOAD_SAMPLES) { |
if (pSample->SamplesTotal <= NUM_RAM_PRELOAD_SAMPLES) { |
241 |
// border, to allow the interpolator do it's work even at the end of |
// border, to allow the interpolator do it's work even at the end of |
242 |
// the sample. |
// the sample. |
243 |
gig::buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(pAudioIO->FragmentSize << MAX_PITCH); |
gig::buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(pAudioIO->FragmentSize << MAX_PITCH); |
244 |
dmsg(("Cached %d Bytes, %d silence bytes.\n", buf.Size, buf.NullExtensionSize)); |
dmsg(4,("Cached %d Bytes, %d silence bytes.\n", buf.Size, buf.NullExtensionSize)); |
245 |
} |
} |
246 |
else { // we only cache NUM_RAM_PRELOAD_SAMPLES and stream the other sample points from disk |
else { // we only cache NUM_RAM_PRELOAD_SAMPLES and stream the other sample points from disk |
247 |
pSample->LoadSampleData(NUM_RAM_PRELOAD_SAMPLES); |
pSample->LoadSampleData(NUM_RAM_PRELOAD_SAMPLES); |