engines/gig/Voice.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
 *   Copyright (C) 2009 - 2013 Christian Schoenebeck and Grigor Iliev      *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#include "../../common/Features.h"
#include "Synthesizer.h"
#include "Profiler.h"
#include "Engine.h"
#include "EngineChannel.h"

#include "Voice.h"

namespace LinuxSampler { namespace gig {

    Voice::Voice() {
        pEngine = NULL;
        pEG1 = &EG1;
        pEG2 = &EG2;
    }

    Voice::~Voice() {
    }

    EngineChannel* Voice::GetGigEngineChannel() {
        return static_cast<EngineChannel*>(pEngineChannel);
    }

    void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
        Engine* engine = static_cast<Engine*>(pEngine);
        this->pEngine     = engine;
        this->pDiskThread = engine->pDiskThread;
        dmsg(6,("Voice::SetEngine()\n"));
    }

    Voice::SampleInfo Voice::GetSampleInfo() {
        SampleInfo si;
        si.SampleRate       = pSample->SamplesPerSecond;
        si.ChannelCount     = pSample->Channels;
        si.FrameSize        = pSample->FrameSize;
        si.BitDepth         = pSample->BitDepth;
        si.TotalFrameCount  = pSample->SamplesTotal;

        si.HasLoops       = pRegion->SampleLoops;
        si.LoopStart      = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart  : 0;
        si.LoopLength     = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
        si.LoopPlayCount  = pSample->LoopPlayCount;
        si.Unpitched      = !pRegion->PitchTrack;

        return si;
    }

    Voice::RegionInfo Voice::GetRegionInfo() {
        RegionInfo ri;
        ri.UnityNote = pRegion->UnityNote;
        ri.FineTune  = pRegion->FineTune;
        ri.Pan       = pRegion->Pan;
        ri.SampleStartOffset = pRegion->SampleStartOffset;

        ri.EG2PreAttack        = pRegion->EG2PreAttack;
        ri.EG2Attack           = pRegion->EG2Attack;
        ri.EG2Decay1           = pRegion->EG2Decay1;
        ri.EG2Decay2           = pRegion->EG2Decay2;
        ri.EG2Sustain          = pRegion->EG2Sustain;
        ri.EG2InfiniteSustain  = pRegion->EG2InfiniteSustain;
        ri.EG2Release          = pRegion->EG2Release;

        ri.EG3Attack     = pRegion->EG3Attack;
        ri.EG3Depth      = pRegion->EG3Depth;
        ri.VCFEnabled    = pRegion->VCFEnabled;
        ri.VCFType       = Filter::vcf_type_t(pRegion->VCFType);
        ri.VCFResonance  = pRegion->VCFResonance;

        ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);

        return ri;
    }

    Voice::InstrumentInfo Voice::GetInstrumentInfo() {
        InstrumentInfo ii;
        ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
        ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;

        return ii;
    }

    double Voice::GetSampleAttenuation() {
        return pRegion->SampleAttenuation;
    }

    double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
        return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
    }

    double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
        return pRegion->GetVelocityRelease(MIDIKeyVelocity);
    }

    void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
        if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
            if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
                itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
                CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
            }
        }
    }

    void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
        int ccvalue = itEvent->Param.CC.Value;
        if (VCFCutoffCtrl.value == ccvalue) return;
        VCFCutoffCtrl.value = ccvalue;
        if (pRegion->VCFCutoffControllerInvert)  ccvalue = 127 - ccvalue;
        if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
        float cutoff = CutoffBase * float(ccvalue);
        if (cutoff > 127.0f) cutoff = 127.0f;

        VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
        fFinalCutoff = cutoff;
    }

    double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
        float crossfadeVolume;
        switch (pRegion->AttenuationController.type) {
            case ::gig::attenuation_ctrl_t::type_channelaftertouch:
                crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
                break;
            case ::gig::attenuation_ctrl_t::type_velocity:
                crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
                break;
            case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
                crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
                break;
            case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
            default:
                crossfadeVolume = 1.0f;
        }

        return crossfadeVolume;
    }

    double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
        double eg1controllervalue = 0;
        switch (pRegion->EG1Controller.type) {
            case ::gig::eg1_ctrl_t::type_none: // no controller defined
                eg1controllervalue = 0;
                break;
            case ::gig::eg1_ctrl_t::type_channelaftertouch:
                eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
                break;
            case ::gig::eg1_ctrl_t::type_velocity:
                eg1controllervalue = MIDIKeyVelocity;
                break;
            case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
                eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
                break;
        }
        if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;

        return eg1controllervalue;
    }

    Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
        EGInfo eg;
        // (eg1attack is different from the others)
        if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
            (pRegion->EG1ControllerAttackInfluence == 0 ||
             eg1ControllerValue <= 10)) { // strange GSt special case
            eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
        } else {
            eg.Attack  = (pRegion->EG1ControllerAttackInfluence)  ?
                1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
                                      1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
        }
        eg.Decay   = (pRegion->EG1ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence)   * eg1ControllerValue : 1.0;
        eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;

        return eg;
    }

    double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
        double eg2controllervalue = 0;
        switch (pRegion->EG2Controller.type) {
            case ::gig::eg2_ctrl_t::type_none: // no controller defined
                eg2controllervalue = 0;
                break;
            case ::gig::eg2_ctrl_t::type_channelaftertouch:
                eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
                break;
            case ::gig::eg2_ctrl_t::type_velocity:
                eg2controllervalue = MIDIKeyVelocity;
                break;
            case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
                eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
                break;
        }
        if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;

        return eg2controllervalue;
    }

    Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
        EGInfo eg;
        eg.Attack  = (pRegion->EG2ControllerAttackInfluence)  ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence)  * eg2ControllerValue : 1.0;
        eg.Decay   = (pRegion->EG2ControllerDecayInfluence)   ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence)   * eg2ControllerValue : 1.0;
        eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;

        return eg;
    }

    void Voice::InitLFO1() {
        uint16_t lfo1_internal_depth;
        switch (pRegion->LFO1Controller) {
            case ::gig::lfo1_ctrl_internal:
                lfo1_internal_depth  = pRegion->LFO1InternalDepth;
                pLFO1->ExtController = 0; // no external controller
                bLFO1Enabled         = (lfo1_internal_depth > 0);
                break;
            case ::gig::lfo1_ctrl_modwheel:
                lfo1_internal_depth  = 0;
                pLFO1->ExtController = 1; // MIDI controller 1
                bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
                break;
            case ::gig::lfo1_ctrl_breath:
                lfo1_internal_depth  = 0;
                pLFO1->ExtController = 2; // MIDI controller 2
                bLFO1Enabled         = (pRegion->LFO1ControlDepth > 0);
                break;
            case ::gig::lfo1_ctrl_internal_modwheel:
                lfo1_internal_depth  = pRegion->LFO1InternalDepth;
                pLFO1->ExtController = 1; // MIDI controller 1
                bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
                break;
            case ::gig::lfo1_ctrl_internal_breath:
                lfo1_internal_depth  = pRegion->LFO1InternalDepth;
                pLFO1->ExtController = 2; // MIDI controller 2
                bLFO1Enabled         = (lfo1_internal_depth > 0 || pRegion->LFO1ControlDepth > 0);
                break;
            default:
                lfo1_internal_depth  = 0;
                pLFO1->ExtController = 0; // no external controller
                bLFO1Enabled         = false;
        }
        if (bLFO1Enabled) {
            pLFO1->trigger(pRegion->LFO1Frequency,
                           start_level_min,
                           lfo1_internal_depth,
                           pRegion->LFO1ControlDepth,
                           pRegion->LFO1FlipPhase,
                           pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
            pLFO1->update(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
        }
    }

    void Voice::InitLFO2() {
        uint16_t lfo2_internal_depth;
        switch (pRegion->LFO2Controller) {
            case ::gig::lfo2_ctrl_internal:
                lfo2_internal_depth  = pRegion->LFO2InternalDepth;
                pLFO2->ExtController = 0; // no external controller
                bLFO2Enabled         = (lfo2_internal_depth > 0);
                break;
            case ::gig::lfo2_ctrl_modwheel:
                lfo2_internal_depth  = 0;
                pLFO2->ExtController = 1; // MIDI controller 1
                bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
                break;
            case ::gig::lfo2_ctrl_foot:
                lfo2_internal_depth  = 0;
                pLFO2->ExtController = 4; // MIDI controller 4
                bLFO2Enabled         = (pRegion->LFO2ControlDepth > 0);
                break;
            case ::gig::lfo2_ctrl_internal_modwheel:
                lfo2_internal_depth  = pRegion->LFO2InternalDepth;
                pLFO2->ExtController = 1; // MIDI controller 1
                bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
                break;
            case ::gig::lfo2_ctrl_internal_foot:
                lfo2_internal_depth  = pRegion->LFO2InternalDepth;
                pLFO2->ExtController = 4; // MIDI controller 4
                bLFO2Enabled         = (lfo2_internal_depth > 0 || pRegion->LFO2ControlDepth > 0);
                break;
            default:
                lfo2_internal_depth  = 0;
                pLFO2->ExtController = 0; // no external controller
                bLFO2Enabled         = false;
        }
        if (bLFO2Enabled) {
            pLFO2->trigger(pRegion->LFO2Frequency,
                           start_level_max,
                           lfo2_internal_depth,
                           pRegion->LFO2ControlDepth,
                           pRegion->LFO2FlipPhase,
                           pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
            pLFO2->update(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
        }
    }

    void Voice::InitLFO3() {
        uint16_t lfo3_internal_depth;
        switch (pRegion->LFO3Controller) {
            case ::gig::lfo3_ctrl_internal:
                lfo3_internal_depth  = pRegion->LFO3InternalDepth;
                pLFO3->ExtController = 0; // no external controller
                bLFO3Enabled         = (lfo3_internal_depth > 0);
                break;
            case ::gig::lfo3_ctrl_modwheel:
                lfo3_internal_depth  = 0;
                pLFO3->ExtController = 1; // MIDI controller 1
                bLFO3Enabled         = (pRegion->LFO3ControlDepth > 0);
                break;
            case ::gig::lfo3_ctrl_aftertouch:
                lfo3_internal_depth  = 0;
                pLFO3->ExtController = 128;
                bLFO3Enabled         = true;
                break;
            case ::gig::lfo3_ctrl_internal_modwheel:
                lfo3_internal_depth  = pRegion->LFO3InternalDepth;
                pLFO3->ExtController = 1; // MIDI controller 1
                bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
                break;
            case ::gig::lfo3_ctrl_internal_aftertouch:
                lfo3_internal_depth  = pRegion->LFO3InternalDepth;
                pLFO3->ExtController = 128;
                bLFO3Enabled         = (lfo3_internal_depth > 0 || pRegion->LFO3ControlDepth > 0);
                break;
            default:
                lfo3_internal_depth  = 0;
                pLFO3->ExtController = 0; // no external controller
                bLFO3Enabled         = false;
        }
        if (bLFO3Enabled) {
            pLFO3->trigger(pRegion->LFO3Frequency,
                           start_level_mid,
                           lfo3_internal_depth,
                           pRegion->LFO3ControlDepth,
                           false,
                           pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
            pLFO3->update(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
        }
    }

    float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
        float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
        if (pRegion->VCFKeyboardTracking) {
            cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
        }
        return cutoff;
    }

    float Voice::CalculateFinalCutoff(float cutoffBase) {
        int cvalue;
        if (VCFCutoffCtrl.controller) {
            cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
            if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
            // VCFVelocityScale in this case means Minimum cutoff
            if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
        }
        else {
            cvalue = pRegion->VCFCutoff;
        }
        float fco = cutoffBase * float(cvalue);
        if (fco > 127.0f) fco = 127.0f;

        return fco;
    }

    uint8_t Voice::GetVCFCutoffCtrl() {
        uint8_t ctrl;
        switch (pRegion->VCFCutoffController) {
            case ::gig::vcf_cutoff_ctrl_modwheel:
                ctrl = 1;
                break;
            case ::gig::vcf_cutoff_ctrl_effect1:
                ctrl = 12;
                break;
            case ::gig::vcf_cutoff_ctrl_effect2:
                ctrl = 13;
                break;
            case ::gig::vcf_cutoff_ctrl_breath:
                ctrl = 2;
                break;
            case ::gig::vcf_cutoff_ctrl_foot:
                ctrl = 4;
                break;
            case ::gig::vcf_cutoff_ctrl_sustainpedal:
                ctrl = 64;
                break;
            case ::gig::vcf_cutoff_ctrl_softpedal:
                ctrl = 67;
                break;
            case ::gig::vcf_cutoff_ctrl_genpurpose7:
                ctrl = 82;
                break;
            case ::gig::vcf_cutoff_ctrl_genpurpose8:
                ctrl = 83;
                break;
            case ::gig::vcf_cutoff_ctrl_aftertouch:
                ctrl = 128;
                break;
            case ::gig::vcf_cutoff_ctrl_none:
            default:
                ctrl = 0;
                break;
        }

        return ctrl;
    }

    uint8_t Voice::GetVCFResonanceCtrl() {
        uint8_t ctrl;
        switch (pRegion->VCFResonanceController) {
            case ::gig::vcf_res_ctrl_genpurpose3:
                ctrl = 18;
                break;
            case ::gig::vcf_res_ctrl_genpurpose4:
                ctrl = 19;
                break;
            case ::gig::vcf_res_ctrl_genpurpose5:
                ctrl = 80;
                break;
            case ::gig::vcf_res_ctrl_genpurpose6:
                ctrl = 81;
                break;
            case ::gig::vcf_res_ctrl_none:
            default:
                ctrl = 0;
        }

        return ctrl;
    }

    void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
        EG1.trigger(pRegion->EG1PreAttack,
                    RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
                    pRegion->EG1Hold,
                    pRegion->EG1Decay1 * egInfo.Decay * velrelease,
                    pRegion->EG1Decay2 * egInfo.Decay * velrelease,
                    pRegion->EG1InfiniteSustain,
                    pRegion->EG1Sustain,
                    RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
                    velocityAttenuation,
                    sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
    }

    void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
        EG2.trigger(uint(RgnInfo.EG2PreAttack),
                    RgnInfo.EG2Attack * egInfo.Attack,
                    false,
                    RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
                    RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
                    RgnInfo.EG2InfiniteSustain,
                    uint(RgnInfo.EG2Sustain),
                    RgnInfo.EG2Release * egInfo.Release * velrelease,
                    velocityAttenuation,
                    sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
    }

    void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
        dmsg(4,("Voice %x processGroupEvents event type=%d", this, itEvent->Type));

        // TODO: The SustainPedal condition could be wrong, maybe the
        // check should be if this Voice is in release stage or is a
        // release sample instead. Need to test this in GSt.
        // -- Andreas
        //
        // Commented sustain pedal check out. I don't think voices of the same
        // note should be stopped at all, because it doesn't sound naturally
        // with a drumkit.
        // -- Christian, 2013-01-08
        if (itEvent->Param.Note.Key != MIDIKey /*||
            !GetGigEngineChannel()->SustainPedal*/) {
            dmsg(4,("Voice %x - kill", this));

            // kill the voice fast
            pEG1->enterFadeOutStage();
        }
    }

    void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
        EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
    }

    int Voice::CalculatePan(uint8_t pan) {
        int p;
        // Gst behaviour: -64 and 63 are special cases
        if (RgnInfo.Pan == -64)     p = pan * 2 - 127;
        else if (RgnInfo.Pan == 63) p = pan * 2;
        else                        p = pan + RgnInfo.Pan;

        if (p < 0) return 0;
        if (p > 127) return 127;
        return p;
    }

}} // namespace LinuxSampler::gig
1	/***************************************************************************
2	* *
3	* LinuxSampler - modular, streaming capable sampler *
4	* *
5	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	* Copyright (C) 2005 - 2008 Christian Schoenebeck *
7	* Copyright (C) 2009 - 2013 Christian Schoenebeck and Grigor Iliev *
8	* *
9	* This program is free software; you can redistribute it and/or modify *
10	* it under the terms of the GNU General Public License as published by *
11	* the Free Software Foundation; either version 2 of the License, or *
12	* (at your option) any later version. *
13	* *
14	* This program is distributed in the hope that it will be useful, *
15	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17	* GNU General Public License for more details. *
18	* *
19	* You should have received a copy of the GNU General Public License *
20	* along with this program; if not, write to the Free Software *
21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
22	* MA 02111-1307 USA *
23	***************************************************************************/
24
25	#include "../../common/Features.h"
26	#include "Synthesizer.h"
27	#include "Profiler.h"
28	#include "Engine.h"
29	#include "EngineChannel.h"
30
31	#include "Voice.h"
32
33	namespace LinuxSampler { namespace gig {
34
35	Voice::Voice() {
36	pEngine = NULL;
37	pEG1 = &EG1;
38	pEG2 = &EG2;
39	}
40
41	Voice::~Voice() {
42	}
43
44	EngineChannel* Voice::GetGigEngineChannel() {
45	return static_cast<EngineChannel*>(pEngineChannel);
46	}
47
48	void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
49	Engine* engine = static_cast<Engine*>(pEngine);
50	this->pEngine = engine;
51	this->pDiskThread = engine->pDiskThread;
52	dmsg(6,("Voice::SetEngine()\n"));
53	}
54
55	Voice::SampleInfo Voice::GetSampleInfo() {
56	SampleInfo si;
57	si.SampleRate = pSample->SamplesPerSecond;
58	si.ChannelCount = pSample->Channels;
59	si.FrameSize = pSample->FrameSize;
60	si.BitDepth = pSample->BitDepth;
61	si.TotalFrameCount = pSample->SamplesTotal;
62
63	si.HasLoops = pRegion->SampleLoops;
64	si.LoopStart = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopStart : 0;
65	si.LoopLength = (si.HasLoops) ? pRegion->pSampleLoops[0].LoopLength : 0;
66	si.LoopPlayCount = pSample->LoopPlayCount;
67	si.Unpitched = !pRegion->PitchTrack;
68
69	return si;
70	}
71
72	Voice::RegionInfo Voice::GetRegionInfo() {
73	RegionInfo ri;
74	ri.UnityNote = pRegion->UnityNote;
75	ri.FineTune = pRegion->FineTune;
76	ri.Pan = pRegion->Pan;
77	ri.SampleStartOffset = pRegion->SampleStartOffset;
78
79	ri.EG2PreAttack = pRegion->EG2PreAttack;
80	ri.EG2Attack = pRegion->EG2Attack;
81	ri.EG2Decay1 = pRegion->EG2Decay1;
82	ri.EG2Decay2 = pRegion->EG2Decay2;
83	ri.EG2Sustain = pRegion->EG2Sustain;
84	ri.EG2InfiniteSustain = pRegion->EG2InfiniteSustain;
85	ri.EG2Release = pRegion->EG2Release;
86
87	ri.EG3Attack = pRegion->EG3Attack;
88	ri.EG3Depth = pRegion->EG3Depth;
89	ri.VCFEnabled = pRegion->VCFEnabled;
90	ri.VCFType = Filter::vcf_type_t(pRegion->VCFType);
91	ri.VCFResonance = pRegion->VCFResonance;
92
93	ri.ReleaseTriggerDecay = 0.01053 * (256 >> pRegion->ReleaseTriggerDecay);
94
95	return ri;
96	}
97
98	Voice::InstrumentInfo Voice::GetInstrumentInfo() {
99	InstrumentInfo ii;
100	ii.FineTune = GetGigEngineChannel()->pInstrument->FineTune;
101	ii.PitchbendRange = GetGigEngineChannel()->pInstrument->PitchbendRange;
102
103	return ii;
104	}
105
106	double Voice::GetSampleAttenuation() {
107	return pRegion->SampleAttenuation;
108	}
109
110	double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
111	return pRegion->GetVelocityAttenuation(MIDIKeyVelocity);
112	}
113
114	double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
115	return pRegion->GetVelocityRelease(MIDIKeyVelocity);
116	}
117
118	void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
119	if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
120	if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
121	itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
122	CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
123	}
124	}
125	}
126
127	void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
128	int ccvalue = itEvent->Param.CC.Value;
129	if (VCFCutoffCtrl.value == ccvalue) return;
130	VCFCutoffCtrl.value = ccvalue;
131	if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue;
132	if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
133	float cutoff = CutoffBase * float(ccvalue);
134	if (cutoff > 127.0f) cutoff = 127.0f;
135
136	VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
137	fFinalCutoff = cutoff;
138	}
139
140	double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
141	float crossfadeVolume;
142	switch (pRegion->AttenuationController.type) {
143	case ::gig::attenuation_ctrl_t::type_channelaftertouch:
144	crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[128])];
145	break;
146	case ::gig::attenuation_ctrl_t::type_velocity:
147	crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
148	break;
149	case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
150	crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetGigEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
151	break;
152	case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
153	default:
154	crossfadeVolume = 1.0f;
155	}
156
157	return crossfadeVolume;
158	}
159
160	double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
161	double eg1controllervalue = 0;
162	switch (pRegion->EG1Controller.type) {
163	case ::gig::eg1_ctrl_t::type_none: // no controller defined
164	eg1controllervalue = 0;
165	break;
166	case ::gig::eg1_ctrl_t::type_channelaftertouch:
167	eg1controllervalue = GetGigEngineChannel()->ControllerTable[128];
168	break;
169	case ::gig::eg1_ctrl_t::type_velocity:
170	eg1controllervalue = MIDIKeyVelocity;
171	break;
172	case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
173	eg1controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
174	break;
175	}
176	if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
177
178	return eg1controllervalue;
179	}
180
181	Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
182	EGInfo eg;
183	// (eg1attack is different from the others)
184	if (pRegion->EG1Attack < 1e-8 && // attack in gig == 0
185	(pRegion->EG1ControllerAttackInfluence == 0 \|\|
186	eg1ControllerValue <= 10)) { // strange GSt special case
187	eg.Attack = 0; // this will force the attack to be 0 in the call to EG1.trigger
188	} else {
189	eg.Attack = (pRegion->EG1ControllerAttackInfluence) ?
190	1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
191	1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
192	}
193	eg.Decay = (pRegion->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence) * eg1ControllerValue : 1.0;
194	eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
195
196	return eg;
197	}
198
199	double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
200	double eg2controllervalue = 0;
201	switch (pRegion->EG2Controller.type) {
202	case ::gig::eg2_ctrl_t::type_none: // no controller defined
203	eg2controllervalue = 0;
204	break;
205	case ::gig::eg2_ctrl_t::type_channelaftertouch:
206	eg2controllervalue = GetGigEngineChannel()->ControllerTable[128];
207	break;
208	case ::gig::eg2_ctrl_t::type_velocity:
209	eg2controllervalue = MIDIKeyVelocity;
210	break;
211	case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
212	eg2controllervalue = GetGigEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
213	break;
214	}
215	if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
216
217	return eg2controllervalue;
218	}
219
220	Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
221	EGInfo eg;
222	eg.Attack = (pRegion->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence) * eg2ControllerValue : 1.0;
223	eg.Decay = (pRegion->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence) * eg2ControllerValue : 1.0;
224	eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
225
226	return eg;
227	}
228
229	void Voice::InitLFO1() {
230	uint16_t lfo1_internal_depth;
231	switch (pRegion->LFO1Controller) {
232	case ::gig::lfo1_ctrl_internal:
233	lfo1_internal_depth = pRegion->LFO1InternalDepth;
234	pLFO1->ExtController = 0; // no external controller
235	bLFO1Enabled = (lfo1_internal_depth > 0);
236	break;
237	case ::gig::lfo1_ctrl_modwheel:
238	lfo1_internal_depth = 0;
239	pLFO1->ExtController = 1; // MIDI controller 1
240	bLFO1Enabled = (pRegion->LFO1ControlDepth > 0);
241	break;
242	case ::gig::lfo1_ctrl_breath:
243	lfo1_internal_depth = 0;
244	pLFO1->ExtController = 2; // MIDI controller 2
245	bLFO1Enabled = (pRegion->LFO1ControlDepth > 0);
246	break;
247	case ::gig::lfo1_ctrl_internal_modwheel:
248	lfo1_internal_depth = pRegion->LFO1InternalDepth;
249	pLFO1->ExtController = 1; // MIDI controller 1
250	bLFO1Enabled = (lfo1_internal_depth > 0 \|\| pRegion->LFO1ControlDepth > 0);
251	break;
252	case ::gig::lfo1_ctrl_internal_breath:
253	lfo1_internal_depth = pRegion->LFO1InternalDepth;
254	pLFO1->ExtController = 2; // MIDI controller 2
255	bLFO1Enabled = (lfo1_internal_depth > 0 \|\| pRegion->LFO1ControlDepth > 0);
256	break;
257	default:
258	lfo1_internal_depth = 0;
259	pLFO1->ExtController = 0; // no external controller
260	bLFO1Enabled = false;
261	}
262	if (bLFO1Enabled) {
263	pLFO1->trigger(pRegion->LFO1Frequency,
264	start_level_min,
265	lfo1_internal_depth,
266	pRegion->LFO1ControlDepth,
267	pRegion->LFO1FlipPhase,
268	pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
269	pLFO1->update(pLFO1->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
270	}
271	}
272
273	void Voice::InitLFO2() {
274	uint16_t lfo2_internal_depth;
275	switch (pRegion->LFO2Controller) {
276	case ::gig::lfo2_ctrl_internal:
277	lfo2_internal_depth = pRegion->LFO2InternalDepth;
278	pLFO2->ExtController = 0; // no external controller
279	bLFO2Enabled = (lfo2_internal_depth > 0);
280	break;
281	case ::gig::lfo2_ctrl_modwheel:
282	lfo2_internal_depth = 0;
283	pLFO2->ExtController = 1; // MIDI controller 1
284	bLFO2Enabled = (pRegion->LFO2ControlDepth > 0);
285	break;
286	case ::gig::lfo2_ctrl_foot:
287	lfo2_internal_depth = 0;
288	pLFO2->ExtController = 4; // MIDI controller 4
289	bLFO2Enabled = (pRegion->LFO2ControlDepth > 0);
290	break;
291	case ::gig::lfo2_ctrl_internal_modwheel:
292	lfo2_internal_depth = pRegion->LFO2InternalDepth;
293	pLFO2->ExtController = 1; // MIDI controller 1
294	bLFO2Enabled = (lfo2_internal_depth > 0 \|\| pRegion->LFO2ControlDepth > 0);
295	break;
296	case ::gig::lfo2_ctrl_internal_foot:
297	lfo2_internal_depth = pRegion->LFO2InternalDepth;
298	pLFO2->ExtController = 4; // MIDI controller 4
299	bLFO2Enabled = (lfo2_internal_depth > 0 \|\| pRegion->LFO2ControlDepth > 0);
300	break;
301	default:
302	lfo2_internal_depth = 0;
303	pLFO2->ExtController = 0; // no external controller
304	bLFO2Enabled = false;
305	}
306	if (bLFO2Enabled) {
307	pLFO2->trigger(pRegion->LFO2Frequency,
308	start_level_max,
309	lfo2_internal_depth,
310	pRegion->LFO2ControlDepth,
311	pRegion->LFO2FlipPhase,
312	pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
313	pLFO2->update(pLFO2->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
314	}
315	}
316
317	void Voice::InitLFO3() {
318	uint16_t lfo3_internal_depth;
319	switch (pRegion->LFO3Controller) {
320	case ::gig::lfo3_ctrl_internal:
321	lfo3_internal_depth = pRegion->LFO3InternalDepth;
322	pLFO3->ExtController = 0; // no external controller
323	bLFO3Enabled = (lfo3_internal_depth > 0);
324	break;
325	case ::gig::lfo3_ctrl_modwheel:
326	lfo3_internal_depth = 0;
327	pLFO3->ExtController = 1; // MIDI controller 1
328	bLFO3Enabled = (pRegion->LFO3ControlDepth > 0);
329	break;
330	case ::gig::lfo3_ctrl_aftertouch:
331	lfo3_internal_depth = 0;
332	pLFO3->ExtController = 128;
333	bLFO3Enabled = true;
334	break;
335	case ::gig::lfo3_ctrl_internal_modwheel:
336	lfo3_internal_depth = pRegion->LFO3InternalDepth;
337	pLFO3->ExtController = 1; // MIDI controller 1
338	bLFO3Enabled = (lfo3_internal_depth > 0 \|\| pRegion->LFO3ControlDepth > 0);
339	break;
340	case ::gig::lfo3_ctrl_internal_aftertouch:
341	lfo3_internal_depth = pRegion->LFO3InternalDepth;
342	pLFO3->ExtController = 128;
343	bLFO3Enabled = (lfo3_internal_depth > 0 \|\| pRegion->LFO3ControlDepth > 0);
344	break;
345	default:
346	lfo3_internal_depth = 0;
347	pLFO3->ExtController = 0; // no external controller
348	bLFO3Enabled = false;
349	}
350	if (bLFO3Enabled) {
351	pLFO3->trigger(pRegion->LFO3Frequency,
352	start_level_mid,
353	lfo3_internal_depth,
354	pRegion->LFO3ControlDepth,
355	false,
356	pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
357	pLFO3->update(pLFO3->ExtController ? GetGigEngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
358	}
359	}
360
361	float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
362	float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
363	if (pRegion->VCFKeyboardTracking) {
364	cutoff = RTMath::CentsToFreqRatioUnlimited((MIDIKey - pRegion->VCFKeyboardTrackingBreakpoint) 100);
365	}
366	return cutoff;
367	}
368
369	float Voice::CalculateFinalCutoff(float cutoffBase) {
370	int cvalue;
371	if (VCFCutoffCtrl.controller) {
372	cvalue = GetGigEngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
373	if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
374	// VCFVelocityScale in this case means Minimum cutoff
375	if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
376	}
377	else {
378	cvalue = pRegion->VCFCutoff;
379	}
380	float fco = cutoffBase * float(cvalue);
381	if (fco > 127.0f) fco = 127.0f;
382
383	return fco;
384	}
385
386	uint8_t Voice::GetVCFCutoffCtrl() {
387	uint8_t ctrl;
388	switch (pRegion->VCFCutoffController) {
389	case ::gig::vcf_cutoff_ctrl_modwheel:
390	ctrl = 1;
391	break;
392	case ::gig::vcf_cutoff_ctrl_effect1:
393	ctrl = 12;
394	break;
395	case ::gig::vcf_cutoff_ctrl_effect2:
396	ctrl = 13;
397	break;
398	case ::gig::vcf_cutoff_ctrl_breath:
399	ctrl = 2;
400	break;
401	case ::gig::vcf_cutoff_ctrl_foot:
402	ctrl = 4;
403	break;
404	case ::gig::vcf_cutoff_ctrl_sustainpedal:
405	ctrl = 64;
406	break;
407	case ::gig::vcf_cutoff_ctrl_softpedal:
408	ctrl = 67;
409	break;
410	case ::gig::vcf_cutoff_ctrl_genpurpose7:
411	ctrl = 82;
412	break;
413	case ::gig::vcf_cutoff_ctrl_genpurpose8:
414	ctrl = 83;
415	break;
416	case ::gig::vcf_cutoff_ctrl_aftertouch:
417	ctrl = 128;
418	break;
419	case ::gig::vcf_cutoff_ctrl_none:
420	default:
421	ctrl = 0;
422	break;
423	}
424
425	return ctrl;
426	}
427
428	uint8_t Voice::GetVCFResonanceCtrl() {
429	uint8_t ctrl;
430	switch (pRegion->VCFResonanceController) {
431	case ::gig::vcf_res_ctrl_genpurpose3:
432	ctrl = 18;
433	break;
434	case ::gig::vcf_res_ctrl_genpurpose4:
435	ctrl = 19;
436	break;
437	case ::gig::vcf_res_ctrl_genpurpose5:
438	ctrl = 80;
439	break;
440	case ::gig::vcf_res_ctrl_genpurpose6:
441	ctrl = 81;
442	break;
443	case ::gig::vcf_res_ctrl_none:
444	default:
445	ctrl = 0;
446	}
447
448	return ctrl;
449	}
450
451	void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
452	EG1.trigger(pRegion->EG1PreAttack,
453	RTMath::Max(pRegion->EG1Attack, 0.0316) * egInfo.Attack,
454	pRegion->EG1Hold,
455	pRegion->EG1Decay1 * egInfo.Decay * velrelease,
456	pRegion->EG1Decay2 * egInfo.Decay * velrelease,
457	pRegion->EG1InfiniteSustain,
458	pRegion->EG1Sustain,
459	RTMath::Max(pRegion->EG1Release * velrelease, 0.014) * egInfo.Release,
460	velocityAttenuation,
461	sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
462	}
463
464	void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
465	EG2.trigger(uint(RgnInfo.EG2PreAttack),
466	RgnInfo.EG2Attack * egInfo.Attack,
467	false,
468	RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
469	RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
470	RgnInfo.EG2InfiniteSustain,
471	uint(RgnInfo.EG2Sustain),
472	RgnInfo.EG2Release * egInfo.Release * velrelease,
473	velocityAttenuation,
474	sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
475	}
476
477	void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
478	dmsg(4,("Voice %x processGroupEvents event type=%d", this, itEvent->Type));
479
480	// TODO: The SustainPedal condition could be wrong, maybe the
481	// check should be if this Voice is in release stage or is a
482	// release sample instead. Need to test this in GSt.
483	// -- Andreas
484	//
485	// Commented sustain pedal check out. I don't think voices of the same
486	// note should be stopped at all, because it doesn't sound naturally
487	// with a drumkit.
488	// -- Christian, 2013-01-08
489	if (itEvent->Param.Note.Key != MIDIKey /*\|\|
490	!GetGigEngineChannel()->SustainPedal*/) {
491	dmsg(4,("Voice %x - kill", this));
492
493	// kill the voice fast
494	pEG1->enterFadeOutStage();
495	}
496	}
497
498	void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
499	EG1.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
500	}
501
502	int Voice::CalculatePan(uint8_t pan) {
503	int p;
504	// Gst behaviour: -64 and 63 are special cases
505	if (RgnInfo.Pan == -64) p = pan * 2 - 127;
506	else if (RgnInfo.Pan == 63) p = pan * 2;
507	else p = pan + RgnInfo.Pan;
508
509	if (p < 0) return 0;
510	if (p > 127) return 127;
511	return p;
512	}
513
514	}} // namespace LinuxSampler::gig