--- linuxsampler/trunk/src/engines/gig/Voice.cpp 2004/05/06 20:06:20 64 +++ linuxsampler/trunk/src/engines/gig/Voice.cpp 2004/10/14 21:31:26 285 @@ -27,18 +27,25 @@ namespace LinuxSampler { namespace gig { - // FIXME: no support for layers (nor crossfades) yet - const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); + const int Voice::FILTER_UPDATE_MASK(CalculateFilterUpdateMask()); + float Voice::CalculateFilterCutoffCoeff() { return log(FILTER_CUTOFF_MIN / FILTER_CUTOFF_MAX); } + int Voice::CalculateFilterUpdateMask() { + if (FILTER_UPDATE_PERIOD <= 0) return 0; + int power_of_two; + for (power_of_two = 0; 1<pOutputLeft = pAudioOutputDevice->Channel(0)->Buffer(); - this->pOutputRight = pAudioOutputDevice->Channel(1)->Buffer(); - this->MaxSamplesPerCycle = pAudioOutputDevice->MaxSamplesPerCycle(); - this->SampleRate = pAudioOutputDevice->SampleRate(); - } - void Voice::SetEngine(Engine* pEngine) { this->pEngine = pEngine; @@ -102,53 +103,171 @@ * Initializes and triggers the voice, a disk stream will be launched if * needed. * - * @param pNoteOnEvent - event that caused triggering of this voice - * @param PitchBend - MIDI detune factor (-8192 ... +8191) - * @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data - * @returns 0 on success, a value < 0 if something failed + * @param itNoteOnEvent - event that caused triggering of this voice + * @param PitchBend - MIDI detune factor (-8192 ... +8191) + * @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data + * @param iLayer - layer number this voice refers to (only if this is a layered sound of course) + * @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false) + * @returns 0 on success, a value < 0 if something failed */ - int Voice::Trigger(Event* pNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument) { + int Voice::Trigger(Pool::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice) { if (!pInstrument) { dmsg(1,("voice::trigger: !pInstrument\n")); exit(EXIT_FAILURE); } - Active = true; - MIDIKey = pNoteOnEvent->Key; + Type = type_normal; + MIDIKey = itNoteOnEvent->Param.Note.Key; pRegion = pInstrument->GetRegion(MIDIKey); PlaybackState = playback_state_ram; // we always start playback from RAM cache and switch then to disk if needed - Pos = 0; - Delay = pNoteOnEvent->FragmentPos(); - pTriggerEvent = pNoteOnEvent; + Delay = itNoteOnEvent->FragmentPos(); + itTriggerEvent = itNoteOnEvent; + itKillEvent = Pool::Iterator(); + itChildVoice = Pool::Iterator(); if (!pRegion) { - std::cerr << "Audio Thread: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush; - Kill(); + std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush; + KillImmediately(); return -1; } - //TODO: current MIDI controller values are not taken into account yet - ::gig::DimensionRegion* pDimRgn = NULL; - for (int i = pRegion->Dimensions - 1; i >= 0; i--) { // Check if instrument has a velocity split - if (pRegion->pDimensionDefinitions[i].dimension == ::gig::dimension_velocity) { - uint DimValues[5] = {0,0,0,0,0}; - DimValues[i] = pNoteOnEvent->Velocity; - pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]); - break; + KeyGroup = pRegion->KeyGroup; + + // get current dimension values to select the right dimension region + //FIXME: controller values for selecting the dimension region here are currently not sample accurate + uint DimValues[5] = {0,0,0,0,0}; + for (int i = pRegion->Dimensions - 1; i >= 0; i--) { + switch (pRegion->pDimensionDefinitions[i].dimension) { + case ::gig::dimension_samplechannel: + DimValues[i] = 0; //TODO: we currently ignore this dimension + break; + case ::gig::dimension_layer: + DimValues[i] = iLayer; + // if this is the 1st layer then spawn further voices for all the other layers + if (iLayer == 0) + for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) + itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice); + break; + case ::gig::dimension_velocity: + DimValues[i] = itNoteOnEvent->Param.Note.Velocity; + break; + case ::gig::dimension_channelaftertouch: + DimValues[i] = 0; //TODO: we currently ignore this dimension + break; + case ::gig::dimension_releasetrigger: + Type = (ReleaseTriggerVoice) ? type_release_trigger : (!iLayer) ? type_release_trigger_required : type_normal; + DimValues[i] = (uint) ReleaseTriggerVoice; + break; + case ::gig::dimension_keyboard: + DimValues[i] = (uint) itNoteOnEvent->Param.Note.Key; + break; + case ::gig::dimension_modwheel: + DimValues[i] = pEngine->ControllerTable[1]; + break; + case ::gig::dimension_breath: + DimValues[i] = pEngine->ControllerTable[2]; + break; + case ::gig::dimension_foot: + DimValues[i] = pEngine->ControllerTable[4]; + break; + case ::gig::dimension_portamentotime: + DimValues[i] = pEngine->ControllerTable[5]; + break; + case ::gig::dimension_effect1: + DimValues[i] = pEngine->ControllerTable[12]; + break; + case ::gig::dimension_effect2: + DimValues[i] = pEngine->ControllerTable[13]; + break; + case ::gig::dimension_genpurpose1: + DimValues[i] = pEngine->ControllerTable[16]; + break; + case ::gig::dimension_genpurpose2: + DimValues[i] = pEngine->ControllerTable[17]; + break; + case ::gig::dimension_genpurpose3: + DimValues[i] = pEngine->ControllerTable[18]; + break; + case ::gig::dimension_genpurpose4: + DimValues[i] = pEngine->ControllerTable[19]; + break; + case ::gig::dimension_sustainpedal: + DimValues[i] = pEngine->ControllerTable[64]; + break; + case ::gig::dimension_portamento: + DimValues[i] = pEngine->ControllerTable[65]; + break; + case ::gig::dimension_sostenutopedal: + DimValues[i] = pEngine->ControllerTable[66]; + break; + case ::gig::dimension_softpedal: + DimValues[i] = pEngine->ControllerTable[67]; + break; + case ::gig::dimension_genpurpose5: + DimValues[i] = pEngine->ControllerTable[80]; + break; + case ::gig::dimension_genpurpose6: + DimValues[i] = pEngine->ControllerTable[81]; + break; + case ::gig::dimension_genpurpose7: + DimValues[i] = pEngine->ControllerTable[82]; + break; + case ::gig::dimension_genpurpose8: + DimValues[i] = pEngine->ControllerTable[83]; + break; + case ::gig::dimension_effect1depth: + DimValues[i] = pEngine->ControllerTable[91]; + break; + case ::gig::dimension_effect2depth: + DimValues[i] = pEngine->ControllerTable[92]; + break; + case ::gig::dimension_effect3depth: + DimValues[i] = pEngine->ControllerTable[93]; + break; + case ::gig::dimension_effect4depth: + DimValues[i] = pEngine->ControllerTable[94]; + break; + case ::gig::dimension_effect5depth: + DimValues[i] = pEngine->ControllerTable[95]; + break; + case ::gig::dimension_none: + std::cerr << "gig::Voice::Trigger() Error: dimension=none\n" << std::flush; + break; + default: + std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush; } } - if (!pDimRgn) { // if there was no velocity split - pDimRgn = pRegion->GetDimensionRegionByValue(0,0,0,0,0); + pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]); + + // get starting crossfade volume level + switch (pDimRgn->AttenuationController.type) { + case ::gig::attenuation_ctrl_t::type_channelaftertouch: + CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet + break; + case ::gig::attenuation_ctrl_t::type_velocity: + CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); + break; + case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate + CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]); + break; + case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined + default: + CrossfadeVolume = 1.0f; } + PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; + PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; + pSample = pDimRgn->pSample; // sample won't change until the voice is finished + Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) + // Check if the sample needs disk streaming or is too short for that long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; DiskVoice = cachedsamples < pSample->SamplesTotal; if (DiskVoice) { // voice to be streamed from disk - MaxRAMPos = cachedsamples - (MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK) + MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK) // check if there's a loop defined which completely fits into the cached (RAM) part of the sample if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) { @@ -159,7 +278,7 @@ if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) { dmsg(1,("Disk stream order failed!\n")); - Kill(); + KillImmediately(); return -1; } dmsg(4,("Disk voice launched (cached samples: %d, total Samples: %d, MaxRAMPos: %d, RAMLooping: %s)\n", cachedsamples, pSample->SamplesTotal, MaxRAMPos, (RAMLoop) ? "yes" : "no")); @@ -177,14 +296,14 @@ // calculate initial pitch value { - double pitchbasecents = pDimRgn->FineTune * 10; + double pitchbasecents = pDimRgn->FineTune * 10 + (int) pEngine->ScaleTuning[MIDIKey % 12]; if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; - this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents); + this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents } - Volume = pDimRgn->GetVelocityAttenuation(pNoteOnEvent->Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) + Volume = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) // setup EG 1 (VCA EG) @@ -199,7 +318,7 @@ eg1controllervalue = 0; // TODO: aftertouch not yet supported break; case ::gig::eg1_ctrl_t::type_velocity: - eg1controllervalue = pNoteOnEvent->Velocity; + eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; break; case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number]; @@ -238,7 +357,7 @@ eg2controllervalue = 0; // TODO: aftertouch not yet supported break; case ::gig::eg2_ctrl_t::type_velocity: - eg2controllervalue = pNoteOnEvent->Velocity; + eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; break; case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number]; @@ -305,7 +424,7 @@ pDimRgn->LFO1ControlDepth, pEngine->ControllerTable[pLFO1->ExtController], pDimRgn->LFO1FlipPhase, - this->SampleRate, + pEngine->SampleRate, Delay); } @@ -343,6 +462,7 @@ pDimRgn->LFO2ControlDepth, pEngine->ControllerTable[pLFO2->ExtController], pDimRgn->LFO2FlipPhase, + pEngine->SampleRate, Delay); } #endif // ENABLE_FILTER @@ -380,7 +500,7 @@ pDimRgn->LFO3ControlDepth, pEngine->ControllerTable[pLFO3->ExtController], false, - this->SampleRate, + pEngine->SampleRate, Delay); } @@ -465,21 +585,21 @@ // calculate cutoff frequency float cutoff = (!VCFCutoffCtrl.controller) - ? exp((float) (127 - pNoteOnEvent->Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX + ? exp((float) (127 - itNoteOnEvent->Param.Note.Velocity) * (float) pDimRgn->VCFVelocityScale * 6.2E-5f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX : exp((float) VCFCutoffCtrl.value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX; // calculate resonance float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 if (pDimRgn->VCFKeyboardTracking) { - resonance += (float) (pNoteOnEvent->Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; + resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; } Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0) VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; VCFResonanceCtrl.fvalue = resonance; - FilterLeft.SetParameters(cutoff, resonance, SampleRate); - FilterRight.SetParameters(cutoff, resonance, SampleRate); + FilterLeft.SetParameters(cutoff, resonance, pEngine->SampleRate); + FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate); FilterUpdateCounter = -1; } @@ -489,10 +609,6 @@ } #endif // ENABLE_FILTER - // ************************************************ - // TODO: ARTICULATION DATA HANDLING IS MISSING HERE - // ************************************************ - return 0; // success } @@ -510,7 +626,7 @@ void Voice::Render(uint Samples) { // Reset the synthesis parameter matrix - pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume); + pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume); pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); #if ENABLE_FILTER pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); @@ -523,9 +639,9 @@ // Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment - pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); + pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent); #if ENABLE_FILTER - pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, pTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); + pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); #endif // ENABLE_FILTER pEG3->Process(Samples); pLFO1->Process(Samples); @@ -535,11 +651,16 @@ pLFO3->Process(Samples); + #if ENABLE_FILTER + CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters + #endif // ENABLE_FILTER + + switch (this->PlaybackState) { case playback_state_ram: { if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); - else Interpolate(Samples, (sample_t*) pSample->GetCache().pStart, Delay); + else InterpolateNoLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); if (DiskVoice) { // check if we reached the allowed limit of the sample RAM cache if (Pos > MaxRAMPos) { @@ -559,7 +680,7 @@ DiskStreamRef.pStream = pDiskThread->AskForCreatedStream(DiskStreamRef.OrderID); if (!DiskStreamRef.pStream) { std::cout << stderr << "Disk stream not available in time!" << std::endl << std::flush; - Kill(); + KillImmediately(); return; } DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos)); @@ -567,26 +688,27 @@ } // add silence sample at the end if we reached the end of the stream (for the interpolator) - if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) { - DiskStreamRef.pStream->WriteSilence((MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels); + if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) { + DiskStreamRef.pStream->WriteSilence((pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels); this->PlaybackState = playback_state_end; } sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from - Interpolate(Samples, ptr, Delay); + InterpolateNoLoop(Samples, ptr, Delay); DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); Pos -= RTMath::DoubleToInt(Pos); } break; case playback_state_end: - Kill(); // free voice + std::cerr << "gig::Voice::Render(): entered with playback_state_end, this is a bug!\n" << std::flush; break; } - #if ENABLE_FILTER // Reset synthesis event lists (except VCO, as VCO events apply channel wide currently) + pEngine->pSynthesisEvents[Event::destination_vca]->clear(); + #if ENABLE_FILTER pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); #endif // ENABLE_FILTER @@ -594,10 +716,10 @@ // Reset delay Delay = 0; - pTriggerEvent = NULL; + itTriggerEvent = Pool::Iterator(); - // If release stage finished, let the voice be killed - if (pEG1->GetStage() == EGADSR::stage_end) this->PlaybackState = playback_state_end; + // If sample stream or release stage finished, kill the voice + if (PlaybackState == playback_state_end || pEG1->GetStage() == EGADSR::stage_end) KillImmediately(); } /** @@ -612,7 +734,9 @@ DiskStreamRef.hStream = 0; DiskStreamRef.State = Stream::state_unused; DiskStreamRef.OrderID = 0; - Active = false; + PlaybackState = playback_state_end; + itTriggerEvent = Pool::Iterator(); + itKillEvent = Pool::Iterator(); } /** @@ -625,158 +749,227 @@ void Voice::ProcessEvents(uint Samples) { // dispatch control change events - Event* pCCEvent = pEngine->pCCEvents->first(); + RTList::Iterator itCCEvent = pEngine->pCCEvents->first(); if (Delay) { // skip events that happened before this voice was triggered - while (pCCEvent && pCCEvent->FragmentPos() <= Delay) pCCEvent = pEngine->pCCEvents->next(); + while (itCCEvent && itCCEvent->FragmentPos() <= Delay) ++itCCEvent; } - while (pCCEvent) { - if (pCCEvent->Controller) { // if valid MIDI controller + while (itCCEvent) { + if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller #if ENABLE_FILTER - if (pCCEvent->Controller == VCFCutoffCtrl.controller) { - pEngine->pSynthesisEvents[Event::destination_vcfc]->alloc_assign(*pCCEvent); + if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { + *pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent; } - if (pCCEvent->Controller == VCFResonanceCtrl.controller) { - pEngine->pSynthesisEvents[Event::destination_vcfr]->alloc_assign(*pCCEvent); + if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { + *pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent; } #endif // ENABLE_FILTER - if (pCCEvent->Controller == pLFO1->ExtController) { - pLFO1->SendEvent(pCCEvent); + if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) { + pLFO1->SendEvent(itCCEvent); } #if ENABLE_FILTER - if (pCCEvent->Controller == pLFO2->ExtController) { - pLFO2->SendEvent(pCCEvent); + if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) { + pLFO2->SendEvent(itCCEvent); } #endif // ENABLE_FILTER - if (pCCEvent->Controller == pLFO3->ExtController) { - pLFO3->SendEvent(pCCEvent); + if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) { + pLFO3->SendEvent(itCCEvent); + } + if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && + itCCEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { // if crossfade event + *pEngine->pSynthesisEvents[Event::destination_vca]->allocAppend() = *itCCEvent; } } - pCCEvent = pEngine->pCCEvents->next(); + ++itCCEvent; } // process pitch events { - RTEList* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco]; - Event* pVCOEvent = pVCOEventList->first(); + RTList* pVCOEventList = pEngine->pSynthesisEvents[Event::destination_vco]; + RTList::Iterator itVCOEvent = pVCOEventList->first(); if (Delay) { // skip events that happened before this voice was triggered - while (pVCOEvent && pVCOEvent->FragmentPos() <= Delay) pVCOEvent = pVCOEventList->next(); + while (itVCOEvent && itVCOEvent->FragmentPos() <= Delay) ++itVCOEvent; } // apply old pitchbend value until first pitch event occurs if (this->PitchBend != 1.0) { - uint end = (pVCOEvent) ? pVCOEvent->FragmentPos() : Samples; + uint end = (itVCOEvent) ? itVCOEvent->FragmentPos() : Samples; for (uint i = Delay; i < end; i++) { pEngine->pSynthesisParameters[Event::destination_vco][i] *= this->PitchBend; } } float pitch; - while (pVCOEvent) { - Event* pNextVCOEvent = pVCOEventList->next(); + while (itVCOEvent) { + RTList::Iterator itNextVCOEvent = itVCOEvent; + ++itNextVCOEvent; // calculate the influence length of this event (in sample points) - uint end = (pNextVCOEvent) ? pNextVCOEvent->FragmentPos() : Samples; + uint end = (itNextVCOEvent) ? itNextVCOEvent->FragmentPos() : Samples; - pitch = RTMath::CentsToFreqRatio(((double) pVCOEvent->Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents + pitch = RTMath::CentsToFreqRatio(((double) itVCOEvent->Param.Pitch.Pitch / 8192.0) * 200.0); // +-two semitones = +-200 cents // apply pitch value to the pitch parameter sequence - for (uint i = pVCOEvent->FragmentPos(); i < end; i++) { + for (uint i = itVCOEvent->FragmentPos(); i < end; i++) { pEngine->pSynthesisParameters[Event::destination_vco][i] *= pitch; } - pVCOEvent = pNextVCOEvent; + itVCOEvent = itNextVCOEvent; } - if (pVCOEventList->last()) this->PitchBend = pitch; + if (!pVCOEventList->isEmpty()) this->PitchBend = pitch; } + // process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !) + { + RTList* pVCAEventList = pEngine->pSynthesisEvents[Event::destination_vca]; + RTList::Iterator itVCAEvent = pVCAEventList->first(); + if (Delay) { // skip events that happened before this voice was triggered + while (itVCAEvent && itVCAEvent->FragmentPos() <= Delay) ++itVCAEvent; + } + float crossfadevolume; + while (itVCAEvent) { + RTList::Iterator itNextVCAEvent = itVCAEvent; + ++itNextVCAEvent; + + // calculate the influence length of this event (in sample points) + uint end = (itNextVCAEvent) ? itNextVCAEvent->FragmentPos() : Samples; + + crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value); + + float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume; + + // apply volume value to the volume parameter sequence + for (uint i = itVCAEvent->FragmentPos(); i < end; i++) { + pEngine->pSynthesisParameters[Event::destination_vca][i] = effective_volume; + } + + itVCAEvent = itNextVCAEvent; + } + if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume; + } #if ENABLE_FILTER // process filter cutoff events { - RTEList* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; - Event* pCutoffEvent = pCutoffEventList->first(); + RTList* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; + RTList::Iterator itCutoffEvent = pCutoffEventList->first(); if (Delay) { // skip events that happened before this voice was triggered - while (pCutoffEvent && pCutoffEvent->FragmentPos() <= Delay) pCutoffEvent = pCutoffEventList->next(); + while (itCutoffEvent && itCutoffEvent->FragmentPos() <= Delay) ++itCutoffEvent; } float cutoff; - while (pCutoffEvent) { - Event* pNextCutoffEvent = pCutoffEventList->next(); + while (itCutoffEvent) { + RTList::Iterator itNextCutoffEvent = itCutoffEvent; + ++itNextCutoffEvent; // calculate the influence length of this event (in sample points) - uint end = (pNextCutoffEvent) ? pNextCutoffEvent->FragmentPos() : Samples; + uint end = (itNextCutoffEvent) ? itNextCutoffEvent->FragmentPos() : Samples; - cutoff = exp((float) pCutoffEvent->Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN; + cutoff = exp((float) itCutoffEvent->Param.CC.Value * 0.00787402f * FILTER_CUTOFF_COEFF) * FILTER_CUTOFF_MAX - FILTER_CUTOFF_MIN; // apply cutoff frequency to the cutoff parameter sequence - for (uint i = pCutoffEvent->FragmentPos(); i < end; i++) { + for (uint i = itCutoffEvent->FragmentPos(); i < end; i++) { pEngine->pSynthesisParameters[Event::destination_vcfc][i] = cutoff; } - pCutoffEvent = pNextCutoffEvent; + itCutoffEvent = itNextCutoffEvent; } - if (pCutoffEventList->last()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time + if (!pCutoffEventList->isEmpty()) VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of parameter matrix next time } // process filter resonance events { - RTEList* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr]; - Event* pResonanceEvent = pResonanceEventList->first(); + RTList* pResonanceEventList = pEngine->pSynthesisEvents[Event::destination_vcfr]; + RTList::Iterator itResonanceEvent = pResonanceEventList->first(); if (Delay) { // skip events that happened before this voice was triggered - while (pResonanceEvent && pResonanceEvent->FragmentPos() <= Delay) pResonanceEvent = pResonanceEventList->next(); + while (itResonanceEvent && itResonanceEvent->FragmentPos() <= Delay) ++itResonanceEvent; } - while (pResonanceEvent) { - Event* pNextResonanceEvent = pResonanceEventList->next(); + while (itResonanceEvent) { + RTList::Iterator itNextResonanceEvent = itResonanceEvent; + ++itNextResonanceEvent; // calculate the influence length of this event (in sample points) - uint end = (pNextResonanceEvent) ? pNextResonanceEvent->FragmentPos() : Samples; + uint end = (itNextResonanceEvent) ? itNextResonanceEvent->FragmentPos() : Samples; // convert absolute controller value to differential - int ctrldelta = pResonanceEvent->Value - VCFResonanceCtrl.value; - VCFResonanceCtrl.value = pResonanceEvent->Value; + int ctrldelta = itResonanceEvent->Param.CC.Value - VCFResonanceCtrl.value; + VCFResonanceCtrl.value = itResonanceEvent->Param.CC.Value; float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 // apply cutoff frequency to the cutoff parameter sequence - for (uint i = pResonanceEvent->FragmentPos(); i < end; i++) { + for (uint i = itResonanceEvent->FragmentPos(); i < end; i++) { pEngine->pSynthesisParameters[Event::destination_vcfr][i] += resonancedelta; } - pResonanceEvent = pNextResonanceEvent; + itResonanceEvent = itNextResonanceEvent; } - if (pResonanceEventList->last()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Value * 0.00787f; // needed for initialization of parameter matrix next time + if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time } #endif // ENABLE_FILTER } + #if ENABLE_FILTER /** - * Interpolates the input audio data (no loop). + * Calculate all necessary, final biquad filter parameters. + * + * @param Samples - number of samples to be rendered in this audio fragment cycle + */ + void Voice::CalculateBiquadParameters(uint Samples) { + if (!FilterLeft.Enabled) return; + + biquad_param_t bqbase; + biquad_param_t bqmain; + float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; + float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; + FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); + pEngine->pBasicFilterParameters[0] = bqbase; + pEngine->pMainFilterParameters[0] = bqmain; + + float* bq; + for (int i = 1; i < Samples; i++) { + // recalculate biquad parameters if cutoff or resonance differ from previous sample point + if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || + pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) { + prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; + prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; + FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); + } + + //same as 'pEngine->pBasicFilterParameters[i] = bqbase;' + bq = (float*) &pEngine->pBasicFilterParameters[i]; + bq[0] = bqbase.a1; + bq[1] = bqbase.a2; + bq[2] = bqbase.b0; + bq[3] = bqbase.b1; + bq[4] = bqbase.b2; + + // same as 'pEngine->pMainFilterParameters[i] = bqmain;' + bq = (float*) &pEngine->pMainFilterParameters[i]; + bq[0] = bqmain.a1; + bq[1] = bqmain.a2; + bq[2] = bqmain.b0; + bq[3] = bqmain.b1; + bq[4] = bqmain.b2; + } + } + #endif // ENABLE_FILTER + + /** + * Interpolates the input audio data (without looping). * * @param Samples - number of sample points to be rendered in this audio * fragment cycle * @param pSrc - pointer to input sample data * @param Skip - number of sample points to skip in output buffer */ - void Voice::Interpolate(uint Samples, sample_t* pSrc, uint Skip) { + void Voice::InterpolateNoLoop(uint Samples, sample_t* pSrc, uint Skip) { int i = Skip; // FIXME: assuming either mono or stereo if (this->pSample->Channels == 2) { // Stereo Sample - while (i < Samples) { - InterpolateOneStep_Stereo(pSrc, i, - pEngine->pSynthesisParameters[Event::destination_vca][i], - pEngine->pSynthesisParameters[Event::destination_vco][i], - pEngine->pSynthesisParameters[Event::destination_vcfc][i], - pEngine->pSynthesisParameters[Event::destination_vcfr][i]); - } + while (i < Samples) InterpolateStereo(pSrc, i); } else { // Mono Sample - while (i < Samples) { - InterpolateOneStep_Mono(pSrc, i, - pEngine->pSynthesisParameters[Event::destination_vca][i], - pEngine->pSynthesisParameters[Event::destination_vco][i], - pEngine->pSynthesisParameters[Event::destination_vcfc][i], - pEngine->pSynthesisParameters[Event::destination_vcfr][i]); - } + while (i < Samples) InterpolateMono(pSrc, i); } } @@ -796,32 +989,18 @@ if (pSample->LoopPlayCount) { // render loop (loop count limited) while (i < Samples && LoopCyclesLeft) { - InterpolateOneStep_Stereo(pSrc, i, - pEngine->pSynthesisParameters[Event::destination_vca][i], - pEngine->pSynthesisParameters[Event::destination_vco][i], - pEngine->pSynthesisParameters[Event::destination_vcfc][i], - pEngine->pSynthesisParameters[Event::destination_vcfr][i]); + InterpolateStereo(pSrc, i); if (Pos > pSample->LoopEnd) { Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; LoopCyclesLeft--; } } // render on without loop - while (i < Samples) { - InterpolateOneStep_Stereo(pSrc, i, - pEngine->pSynthesisParameters[Event::destination_vca][i], - pEngine->pSynthesisParameters[Event::destination_vco][i], - pEngine->pSynthesisParameters[Event::destination_vcfc][i], - pEngine->pSynthesisParameters[Event::destination_vcfr][i]); - } + while (i < Samples) InterpolateStereo(pSrc, i); } else { // render loop (endless loop) while (i < Samples) { - InterpolateOneStep_Stereo(pSrc, i, - pEngine->pSynthesisParameters[Event::destination_vca][i], - pEngine->pSynthesisParameters[Event::destination_vco][i], - pEngine->pSynthesisParameters[Event::destination_vcfc][i], - pEngine->pSynthesisParameters[Event::destination_vcfr][i]); + InterpolateStereo(pSrc, i); if (Pos > pSample->LoopEnd) { Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); } @@ -832,32 +1011,18 @@ if (pSample->LoopPlayCount) { // render loop (loop count limited) while (i < Samples && LoopCyclesLeft) { - InterpolateOneStep_Mono(pSrc, i, - pEngine->pSynthesisParameters[Event::destination_vca][i], - pEngine->pSynthesisParameters[Event::destination_vco][i], - pEngine->pSynthesisParameters[Event::destination_vcfc][i], - pEngine->pSynthesisParameters[Event::destination_vcfr][i]); + InterpolateMono(pSrc, i); if (Pos > pSample->LoopEnd) { Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; LoopCyclesLeft--; } } // render on without loop - while (i < Samples) { - InterpolateOneStep_Mono(pSrc, i, - pEngine->pSynthesisParameters[Event::destination_vca][i], - pEngine->pSynthesisParameters[Event::destination_vco][i], - pEngine->pSynthesisParameters[Event::destination_vcfc][i], - pEngine->pSynthesisParameters[Event::destination_vcfr][i]); - } + while (i < Samples) InterpolateMono(pSrc, i); } else { // render loop (endless loop) while (i < Samples) { - InterpolateOneStep_Mono(pSrc, i, - pEngine->pSynthesisParameters[Event::destination_vca][i], - pEngine->pSynthesisParameters[Event::destination_vco][i], - pEngine->pSynthesisParameters[Event::destination_vcfc][i], - pEngine->pSynthesisParameters[Event::destination_vcfr][i]); + InterpolateMono(pSrc, i); if (Pos > pSample->LoopEnd) { Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; } @@ -867,13 +1032,32 @@ } /** - * Immediately kill the voice. + * Immediately kill the voice. This method should not be used to kill + * a normal, active voice, because it doesn't take care of things like + * fading down the volume level to avoid clicks and regular processing + * until the kill event actually occured! + * + * @see Kill() */ - void Voice::Kill() { + void Voice::KillImmediately() { if (DiskVoice && DiskStreamRef.State != Stream::state_unused) { pDiskThread->OrderDeletionOfStream(&DiskStreamRef); } Reset(); } + /** + * Kill the voice in regular sense. Let the voice render audio until + * the kill event actually occured and then fade down the volume level + * very quickly and let the voice die finally. Unlike a normal release + * of a voice, a kill process cannot be cancalled and is therefore + * usually used for voice stealing and key group conflicts. + * + * @param itKillEvent - event which caused the voice to be killed + */ + void Voice::Kill(Pool::Iterator& itKillEvent) { + if (itTriggerEvent && itKillEvent->FragmentPos() <= itTriggerEvent->FragmentPos()) return; + this->itKillEvent = itKillEvent; + } + }} // namespace LinuxSampler::gig