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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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// TODO: no support for crossfades yet |
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30 |
const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
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const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask()); |
const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask()); |
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* Initializes and triggers the voice, a disk stream will be launched if |
* Initializes and triggers the voice, a disk stream will be launched if |
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* needed. |
* needed. |
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* |
* |
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* @param pNoteOnEvent - event that caused triggering of this voice |
* @param pNoteOnEvent - event that caused triggering of this voice |
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* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
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* @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data |
* @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data |
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* @param iLayer - layer number this voice refers to (only if this is a layered sound of course) |
* @param iLayer - layer number this voice refers to (only if this is a layered sound of course) |
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* @returns 0 on success, a value < 0 if something failed |
* @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false) |
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* @returns 0 on success, a value < 0 if something failed |
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*/ |
*/ |
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int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer) { |
int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice) { |
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if (!pInstrument) { |
if (!pInstrument) { |
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dmsg(1,("voice::trigger: !pInstrument\n")); |
dmsg(1,("voice::trigger: !pInstrument\n")); |
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exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
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} |
} |
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Type = type_normal; |
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Active = true; |
Active = true; |
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MIDIKey = pNoteOnEvent->Key; |
MIDIKey = pNoteOnEvent->Key; |
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pRegion = pInstrument->GetRegion(MIDIKey); |
pRegion = pInstrument->GetRegion(MIDIKey); |
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// if this is the 1st layer then spawn further voices for all the other layers |
// if this is the 1st layer then spawn further voices for all the other layers |
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if (iLayer == 0) |
if (iLayer == 0) |
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for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
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pEngine->LaunchVoice(pNoteOnEvent, iNewLayer); |
pEngine->LaunchVoice(pNoteOnEvent, iNewLayer, ReleaseTriggerVoice); |
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break; |
break; |
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case ::gig::dimension_velocity: |
case ::gig::dimension_velocity: |
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DimValues[i] = pNoteOnEvent->Velocity; |
DimValues[i] = pNoteOnEvent->Velocity; |
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DimValues[i] = 0; //TODO: we currently ignore this dimension |
DimValues[i] = 0; //TODO: we currently ignore this dimension |
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break; |
break; |
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case ::gig::dimension_releasetrigger: |
case ::gig::dimension_releasetrigger: |
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DimValues[i] = 0; //TODO: we currently ignore this dimension |
Type = (ReleaseTriggerVoice) ? type_release_trigger : (!iLayer) ? type_release_trigger_required : type_normal; |
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DimValues[i] = (uint) ReleaseTriggerVoice; |
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break; |
break; |
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case ::gig::dimension_keyboard: |
case ::gig::dimension_keyboard: |
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DimValues[i] = (uint) pNoteOnEvent->Key; |
DimValues[i] = (uint) pNoteOnEvent->Key; |
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CrossfadeVolume = 1.0f; |
CrossfadeVolume = 1.0f; |
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} |
} |
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PanLeft = float(RTMath::Max(pDimRgn->Pan, 0)) / -64.0f; |
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PanRight = float(RTMath::Min(pDimRgn->Pan, 0)) / 63.0f; |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
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Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
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// calculate initial pitch value |
// calculate initial pitch value |
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{ |
{ |
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double pitchbasecents = pDimRgn->FineTune * 10; |
double pitchbasecents = pDimRgn->FineTune * 10 + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
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if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
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this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
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this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
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case playback_state_ram: { |
case playback_state_ram: { |
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if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
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else Interpolate(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
else InterpolateNoLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
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if (DiskVoice) { |
if (DiskVoice) { |
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// check if we reached the allowed limit of the sample RAM cache |
// check if we reached the allowed limit of the sample RAM cache |
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if (Pos > MaxRAMPos) { |
if (Pos > MaxRAMPos) { |
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} |
} |
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sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
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Interpolate(Samples, ptr, Delay); |
InterpolateNoLoop(Samples, ptr, Delay); |
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DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
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Pos -= RTMath::DoubleToInt(Pos); |
Pos -= RTMath::DoubleToInt(Pos); |
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} |
} |
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#endif // ENABLE_FILTER |
#endif // ENABLE_FILTER |
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/** |
/** |
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* Interpolates the input audio data (no loop). |
* Interpolates the input audio data (without looping). |
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* |
* |
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* @param Samples - number of sample points to be rendered in this audio |
* @param Samples - number of sample points to be rendered in this audio |
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* fragment cycle |
* fragment cycle |
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* @param pSrc - pointer to input sample data |
* @param pSrc - pointer to input sample data |
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* @param Skip - number of sample points to skip in output buffer |
* @param Skip - number of sample points to skip in output buffer |
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*/ |
*/ |
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void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::InterpolateNoLoop(uint Samples, sample_t* pSrc, uint Skip) { |
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int i = Skip; |
int i = Skip; |
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// FIXME: assuming either mono or stereo |
// FIXME: assuming either mono or stereo |
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if (this->pSample->Channels == 2) { // Stereo Sample |
if (this->pSample->Channels == 2) { // Stereo Sample |
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while (i < Samples) { |
while (i < Samples) InterpolateStereo(pSrc, i); |
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InterpolateOneStep_Stereo(pSrc, i, |
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pEngine->pSynthesisParameters[Event::destination_vca][i], |
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pEngine->pSynthesisParameters[Event::destination_vco][i], |
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pEngine->pBasicFilterParameters[i], |
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pEngine->pMainFilterParameters[i]); |
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} |
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964 |
} |
} |
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else { // Mono Sample |
else { // Mono Sample |
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while (i < Samples) { |
while (i < Samples) InterpolateMono(pSrc, i); |
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InterpolateOneStep_Mono(pSrc, i, |
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pEngine->pSynthesisParameters[Event::destination_vca][i], |
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pEngine->pSynthesisParameters[Event::destination_vco][i], |
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pEngine->pBasicFilterParameters[i], |
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pEngine->pMainFilterParameters[i]); |
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} |
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} |
} |
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} |
} |
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if (pSample->LoopPlayCount) { |
if (pSample->LoopPlayCount) { |
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// render loop (loop count limited) |
// render loop (loop count limited) |
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while (i < Samples && LoopCyclesLeft) { |
while (i < Samples && LoopCyclesLeft) { |
986 |
InterpolateOneStep_Stereo(pSrc, i, |
InterpolateStereo(pSrc, i); |
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pEngine->pSynthesisParameters[Event::destination_vca][i], |
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pEngine->pSynthesisParameters[Event::destination_vco][i], |
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pEngine->pBasicFilterParameters[i], |
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pEngine->pMainFilterParameters[i]); |
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if (Pos > pSample->LoopEnd) { |
if (Pos > pSample->LoopEnd) { |
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Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
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LoopCyclesLeft--; |
LoopCyclesLeft--; |
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} |
} |
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} |
} |
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// render on without loop |
// render on without loop |
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while (i < Samples) { |
while (i < Samples) InterpolateStereo(pSrc, i); |
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InterpolateOneStep_Stereo(pSrc, i, |
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pEngine->pSynthesisParameters[Event::destination_vca][i], |
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pEngine->pSynthesisParameters[Event::destination_vco][i], |
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pEngine->pBasicFilterParameters[i], |
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pEngine->pMainFilterParameters[i]); |
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} |
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} |
} |
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else { // render loop (endless loop) |
else { // render loop (endless loop) |
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while (i < Samples) { |
while (i < Samples) { |
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InterpolateOneStep_Stereo(pSrc, i, |
InterpolateStereo(pSrc, i); |
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pEngine->pSynthesisParameters[Event::destination_vca][i], |
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pEngine->pSynthesisParameters[Event::destination_vco][i], |
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pEngine->pBasicFilterParameters[i], |
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pEngine->pMainFilterParameters[i]); |
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if (Pos > pSample->LoopEnd) { |
if (Pos > pSample->LoopEnd) { |
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Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); |
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} |
} |
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if (pSample->LoopPlayCount) { |
if (pSample->LoopPlayCount) { |
1006 |
// render loop (loop count limited) |
// render loop (loop count limited) |
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while (i < Samples && LoopCyclesLeft) { |
while (i < Samples && LoopCyclesLeft) { |
1008 |
InterpolateOneStep_Mono(pSrc, i, |
InterpolateMono(pSrc, i); |
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pEngine->pSynthesisParameters[Event::destination_vca][i], |
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pEngine->pSynthesisParameters[Event::destination_vco][i], |
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pEngine->pBasicFilterParameters[i], |
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pEngine->pMainFilterParameters[i]); |
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if (Pos > pSample->LoopEnd) { |
if (Pos > pSample->LoopEnd) { |
1010 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
1011 |
LoopCyclesLeft--; |
LoopCyclesLeft--; |
1012 |
} |
} |
1013 |
} |
} |
1014 |
// render on without loop |
// render on without loop |
1015 |
while (i < Samples) { |
while (i < Samples) InterpolateMono(pSrc, i); |
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InterpolateOneStep_Mono(pSrc, i, |
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pEngine->pSynthesisParameters[Event::destination_vca][i], |
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pEngine->pSynthesisParameters[Event::destination_vco][i], |
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pEngine->pBasicFilterParameters[i], |
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pEngine->pMainFilterParameters[i]); |
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} |
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} |
} |
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else { // render loop (endless loop) |
else { // render loop (endless loop) |
1018 |
while (i < Samples) { |
while (i < Samples) { |
1019 |
InterpolateOneStep_Mono(pSrc, i, |
InterpolateMono(pSrc, i); |
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pEngine->pSynthesisParameters[Event::destination_vca][i], |
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pEngine->pSynthesisParameters[Event::destination_vco][i], |
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pEngine->pBasicFilterParameters[i], |
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pEngine->pMainFilterParameters[i]); |
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1020 |
if (Pos > pSample->LoopEnd) { |
if (Pos > pSample->LoopEnd) { |
1021 |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
1022 |
} |
} |
1050 |
* @param pKillEvent - event which caused the voice to be killed |
* @param pKillEvent - event which caused the voice to be killed |
1051 |
*/ |
*/ |
1052 |
void Voice::Kill(Event* pKillEvent) { |
void Voice::Kill(Event* pKillEvent) { |
1053 |
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if (pTriggerEvent && pKillEvent->FragmentPos() <= pTriggerEvent->FragmentPos()) return; |
1054 |
this->pKillEvent = pKillEvent; |
this->pKillEvent = pKillEvent; |
1055 |
} |
} |
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