engines/sf2/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 - 2011 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 "Voice.h"

#include "Engine.h"
#include "EngineChannel.h"

namespace LinuxSampler { namespace sf2 {

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

    Voice::~Voice() {

    }

    EngineChannel* Voice::GetSf2EngineChannel() {
        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->SampleRate;
        si.ChannelCount     = pSample->GetChannelCount();
        si.FrameSize        = pSample->GetFrameSize();
        si.BitDepth         = (pSample->GetFrameSize() / pSample->GetChannelCount()) * 8;
        si.TotalFrameCount  = pSample->GetTotalFrameCount();

        si.HasLoops       = pRegion->HasLoop;
        si.LoopStart      = (si.HasLoops) ? pRegion->LoopStart : 0;
        si.LoopLength     = (si.HasLoops) ? ((pRegion->LoopEnd) - pRegion->LoopStart): 0;
        si.LoopPlayCount  = 0; // TODO:
        si.Unpitched      = pSample->IsUnpitched();

        return si;
    }

    Voice::RegionInfo Voice::GetRegionInfo() {
        ::sf2::Region* reg = NULL;
        ::sf2::Preset* preset = GetSf2EngineChannel()->pInstrument;
        for (int i = 0; i < preset->GetRegionCount(); i++) { // TODO: some optimization?
            if (preset->GetRegion(i)->pInstrument == pRegion->GetParentInstrument()) {
                reg = preset->GetRegion(i); // TODO: Can the instrument belongs to more than one preset regions?
                break;
            }
        }
        
        RegionInfo ri;
        ri.UnityNote = pRegion->GetUnityNote();
        ri.FineTune  = pRegion->GetFineTune(reg) + (pRegion->GetCoarseTune(reg) * 100);
        ri.Pan       = pRegion->GetPan(reg);
        ri.SampleStartOffset = pRegion->startAddrsOffset + pRegion->startAddrsCoarseOffset;

        // sample amplitude
        ri.EG1PreAttack        = 1000;
        ri.EG1Attack           = pRegion->GetEG1Attack(reg);
        ri.EG1Hold             = pRegion->GetEG1Hold(reg);
        ri.EG1Decay1           = pRegion->GetEG1Decay(reg);
        ri.EG1Decay2           = pRegion->GetEG1Decay(reg);
        ri.EG1Sustain          = pRegion->GetEG1Sustain(reg);
        ri.EG1InfiniteSustain  = true;
        ri.EG1Release          = pRegion->GetEG1Release(reg);

        // filter cutoff frequency
        ri.EG2PreAttack        = 1000;
        ri.EG2Attack           = pRegion->GetEG2Attack(reg);
        //ri.EG2Hold             = pRegion->EG2Hold; // TODO:
        ri.EG2Decay1           = pRegion->GetEG2Decay(reg);
        ri.EG2Decay2           = pRegion->GetEG2Decay(reg);
        ri.EG2Sustain          = pRegion->GetEG2Sustain(reg);
        ri.EG2InfiniteSustain  = true;
        ri.EG2Release          = pRegion->GetEG2Release(reg);

        // sample pitch
        ri.EG3Attack     = 0; // TODO:
        ri.EG3Depth      = 0; // TODO:
        ri.VCFEnabled    = false; // TODO:
        ri.VCFType       = Filter::vcf_type_2p_lowpass; // TODO:
        ri.VCFResonance  = 0; // TODO:

        ri.ReleaseTriggerDecay = 0; // TODO:

        return ri;
    }

    Voice::InstrumentInfo Voice::GetInstrumentInfo() {
        InstrumentInfo ii;
        ii.FineTune = 0; // TODO: 
        ii.PitchbendRange = 2; // TODO: 

        return ii;
    }

    double Voice::GetSampleAttenuation() {
        return 1.0; // TODO: 
    }

    double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
        return double(MIDIKeyVelocity) / 127.0f; // TODO: 
    }

    double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
        return 0.9; // TODO:
    }

    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)]);
            }
        }*/ // TODO: ^^^
    }

    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;*/ // TODO: ^^^
    }

    double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
        /*float crossfadeVolume;
        switch (pRegion->AttenuationController.type) {
            case ::gig::attenuation_ctrl_t::type_channelaftertouch:
                crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSf2EngineChannel()->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(GetSf2EngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
                break;
            case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
            default:
                crossfadeVolume = 1.0f;
        }

        return crossfadeVolume;*/ // TODO: ^^^
        return 1.0f;
    }

    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 = GetSf2EngineChannel()->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 = GetSf2EngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
                break;
        }
        if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;

        return eg1controllervalue;*/ // TODO: ^^^
        return 0;
    }

    Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
        /*EGInfo eg;
        // (eg1attack is different from the others)
        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;*/ // TODO: ^^^
        EGInfo eg;
        eg.Attack = 1.0;
        eg.Decay = 1.0;
        eg.Release = 1.0;
        return eg;
    }

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

    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 = GetSf2EngineChannel()->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 = GetSf2EngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
                break;
        }
        if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;

        return eg2controllervalue;*/ // TODO: ^^^
        return 0;
    }

    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;*/ // TODO: ^^^
        EGInfo eg;
        eg.Attack = 1.0;
        eg.Decay = 1.0;
        eg.Release = 1.0;
        return eg;
    }

    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::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 ? GetSf2EngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
        }*/ // TODO: ^^^
        bLFO1Enabled = false;
    }

    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 ? GetSf2EngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
        }*/ // TODO: ^^^
         bLFO2Enabled = false;
    }

    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;
                pLFO1->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 ? GetSf2EngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
        }*/ // TODO: ^^^
         bLFO3Enabled = false;
    }

    float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
        /*float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
        if (pRegion->VCFKeyboardTracking) {
            cutoff *= RTMath::CentsToFreqRatioUnlimited((MIDIKey - pRegion->VCFKeyboardTrackingBreakpoint) * 100);
        }
        return cutoff;*/ // TODO: ^^^
        return 1.0f;
    }

    float Voice::CalculateFinalCutoff(float cutoffBase) {
        /*int cvalue;
        if (VCFCutoffCtrl.controller) {
            cvalue = GetSf2EngineChannel()->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;*/ // TODO: ^^^
        return 0.0f;
    }

    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;*/ // TODO: ^^^
        return 0;
    }

    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;*/ // TODO: ^^^
        return 0;
    }

    void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
        if (itEvent->Param.Note.Key != MIDIKey) {
            // kill the voice fast
            pEG1->enterFadeOutStage();
        }
    }

}} // namespace LinuxSampler::sf2
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 - 2011 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 "Voice.h"
26
27	#include "Engine.h"
28	#include "EngineChannel.h"
29
30	namespace LinuxSampler { namespace sf2 {
31
32	Voice::Voice() {
33	pEngine = NULL;
34	pEG1 = &EG1;
35	pEG2 = &EG2;
36	}
37
38	Voice::~Voice() {
39
40	}
41
42	EngineChannel* Voice::GetSf2EngineChannel() {
43	return static_cast<EngineChannel*>(pEngineChannel);
44	}
45
46	void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
47	Engine* engine = static_cast<Engine*>(pEngine);
48	this->pEngine = engine;
49	this->pDiskThread = engine->pDiskThread;
50	dmsg(6,("Voice::SetEngine()\n"));
51	}
52
53	Voice::SampleInfo Voice::GetSampleInfo() {
54	SampleInfo si;
55	si.SampleRate = pSample->SampleRate;
56	si.ChannelCount = pSample->GetChannelCount();
57	si.FrameSize = pSample->GetFrameSize();
58	si.BitDepth = (pSample->GetFrameSize() / pSample->GetChannelCount()) * 8;
59	si.TotalFrameCount = pSample->GetTotalFrameCount();
60
61	si.HasLoops = pRegion->HasLoop;
62	si.LoopStart = (si.HasLoops) ? pRegion->LoopStart : 0;
63	si.LoopLength = (si.HasLoops) ? ((pRegion->LoopEnd) - pRegion->LoopStart): 0;
64	si.LoopPlayCount = 0; // TODO:
65	si.Unpitched = pSample->IsUnpitched();
66
67	return si;
68	}
69
70	Voice::RegionInfo Voice::GetRegionInfo() {
71	::sf2::Region* reg = NULL;
72	::sf2::Preset* preset = GetSf2EngineChannel()->pInstrument;
73	for (int i = 0; i < preset->GetRegionCount(); i++) { // TODO: some optimization?
74	if (preset->GetRegion(i)->pInstrument == pRegion->GetParentInstrument()) {
75	reg = preset->GetRegion(i); // TODO: Can the instrument belongs to more than one preset regions?
76	break;
77	}
78	}
79
80	RegionInfo ri;
81	ri.UnityNote = pRegion->GetUnityNote();
82	ri.FineTune = pRegion->GetFineTune(reg) + (pRegion->GetCoarseTune(reg) * 100);
83	ri.Pan = pRegion->GetPan(reg);
84	ri.SampleStartOffset = pRegion->startAddrsOffset + pRegion->startAddrsCoarseOffset;
85
86	// sample amplitude
87	ri.EG1PreAttack = 1000;
88	ri.EG1Attack = pRegion->GetEG1Attack(reg);
89	ri.EG1Hold = pRegion->GetEG1Hold(reg);
90	ri.EG1Decay1 = pRegion->GetEG1Decay(reg);
91	ri.EG1Decay2 = pRegion->GetEG1Decay(reg);
92	ri.EG1Sustain = pRegion->GetEG1Sustain(reg);
93	ri.EG1InfiniteSustain = true;
94	ri.EG1Release = pRegion->GetEG1Release(reg);
95
96	// filter cutoff frequency
97	ri.EG2PreAttack = 1000;
98	ri.EG2Attack = pRegion->GetEG2Attack(reg);
99	//ri.EG2Hold = pRegion->EG2Hold; // TODO:
100	ri.EG2Decay1 = pRegion->GetEG2Decay(reg);
101	ri.EG2Decay2 = pRegion->GetEG2Decay(reg);
102	ri.EG2Sustain = pRegion->GetEG2Sustain(reg);
103	ri.EG2InfiniteSustain = true;
104	ri.EG2Release = pRegion->GetEG2Release(reg);
105
106	// sample pitch
107	ri.EG3Attack = 0; // TODO:
108	ri.EG3Depth = 0; // TODO:
109	ri.VCFEnabled = false; // TODO:
110	ri.VCFType = Filter::vcf_type_2p_lowpass; // TODO:
111	ri.VCFResonance = 0; // TODO:
112
113	ri.ReleaseTriggerDecay = 0; // TODO:
114
115	return ri;
116	}
117
118	Voice::InstrumentInfo Voice::GetInstrumentInfo() {
119	InstrumentInfo ii;
120	ii.FineTune = 0; // TODO:
121	ii.PitchbendRange = 2; // TODO:
122
123	return ii;
124	}
125
126	double Voice::GetSampleAttenuation() {
127	return 1.0; // TODO:
128	}
129
130	double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
131	return double(MIDIKeyVelocity) / 127.0f; // TODO:
132	}
133
134	double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
135	return 0.9; // TODO:
136	}
137
138	void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
139	/*if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
140	if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
141	itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
142	CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
143	}
144	}*/ // TODO: ^^^
145	}
146
147	void Voice::ProcessCutoffEvent(RTList<Event>::Iterator& itEvent) {
148	/*int ccvalue = itEvent->Param.CC.Value;
149	if (VCFCutoffCtrl.value == ccvalue) return;
150	VCFCutoffCtrl.value == ccvalue;
151	if (pRegion->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue;
152	if (ccvalue < pRegion->VCFVelocityScale) ccvalue = pRegion->VCFVelocityScale;
153	float cutoff = CutoffBase * float(ccvalue);
154	if (cutoff > 127.0f) cutoff = 127.0f;
155
156	VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time
157	fFinalCutoff = cutoff;*/ // TODO: ^^^
158	}
159
160	double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
161	/*float crossfadeVolume;
162	switch (pRegion->AttenuationController.type) {
163	case ::gig::attenuation_ctrl_t::type_channelaftertouch:
164	crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSf2EngineChannel()->ControllerTable[128])];
165	break;
166	case ::gig::attenuation_ctrl_t::type_velocity:
167	crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
168	break;
169	case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
170	crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSf2EngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
171	break;
172	case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
173	default:
174	crossfadeVolume = 1.0f;
175	}
176
177	return crossfadeVolume;*/ // TODO: ^^^
178	return 1.0f;
179	}
180
181	double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
182	/*double eg1controllervalue = 0;
183	switch (pRegion->EG1Controller.type) {
184	case ::gig::eg1_ctrl_t::type_none: // no controller defined
185	eg1controllervalue = 0;
186	break;
187	case ::gig::eg1_ctrl_t::type_channelaftertouch:
188	eg1controllervalue = GetSf2EngineChannel()->ControllerTable[128];
189	break;
190	case ::gig::eg1_ctrl_t::type_velocity:
191	eg1controllervalue = MIDIKeyVelocity;
192	break;
193	case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
194	eg1controllervalue = GetSf2EngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
195	break;
196	}
197	if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
198
199	return eg1controllervalue;*/ // TODO: ^^^
200	return 0;
201	}
202
203	Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
204	/*EGInfo eg;
205	// (eg1attack is different from the others)
206	eg.Attack = (pRegion->EG1ControllerAttackInfluence) ?
207	1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
208	1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
209	eg.Decay = (pRegion->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence) * eg1ControllerValue : 1.0;
210	eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
211
212	return eg;*/ // TODO: ^^^
213	EGInfo eg;
214	eg.Attack = 1.0;
215	eg.Decay = 1.0;
216	eg.Release = 1.0;
217	return eg;
218	}
219
220	void Voice::TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
221	EG1.trigger(uint(RgnInfo.EG1PreAttack),
222	RgnInfo.EG1Attack * egInfo.Attack,
223	RgnInfo.EG1Hold,
224	RgnInfo.EG1Decay1 * egInfo.Decay * velrelease,
225	RgnInfo.EG1Decay2 * egInfo.Decay * velrelease,
226	RgnInfo.EG1InfiniteSustain,
227	uint(RgnInfo.EG1Sustain),
228	RgnInfo.EG1Release * egInfo.Release * velrelease,
229	velocityAttenuation,
230	sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
231	}
232
233	double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
234	/*double eg2controllervalue = 0;
235	switch (pRegion->EG2Controller.type) {
236	case ::gig::eg2_ctrl_t::type_none: // no controller defined
237	eg2controllervalue = 0;
238	break;
239	case ::gig::eg2_ctrl_t::type_channelaftertouch:
240	eg2controllervalue = GetSf2EngineChannel()->ControllerTable[128];
241	break;
242	case ::gig::eg2_ctrl_t::type_velocity:
243	eg2controllervalue = MIDIKeyVelocity;
244	break;
245	case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
246	eg2controllervalue = GetSf2EngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
247	break;
248	}
249	if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
250
251	return eg2controllervalue;*/ // TODO: ^^^
252	return 0;
253	}
254
255	Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
256	/*EGInfo eg;
257	eg.Attack = (pRegion->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence) * eg2ControllerValue : 1.0;
258	eg.Decay = (pRegion->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence) * eg2ControllerValue : 1.0;
259	eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
260
261	return eg;*/ // TODO: ^^^
262	EGInfo eg;
263	eg.Attack = 1.0;
264	eg.Decay = 1.0;
265	eg.Release = 1.0;
266	return eg;
267	}
268
269	void Voice::TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity) {
270	EG2.trigger(uint(RgnInfo.EG2PreAttack),
271	RgnInfo.EG2Attack * egInfo.Attack,
272	false,
273	RgnInfo.EG2Decay1 * egInfo.Decay * velrelease,
274	RgnInfo.EG2Decay2 * egInfo.Decay * velrelease,
275	RgnInfo.EG2InfiniteSustain,
276	uint(RgnInfo.EG2Sustain),
277	RgnInfo.EG2Release * egInfo.Release * velrelease,
278	velocityAttenuation,
279	sampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
280	}
281
282	void Voice::InitLFO1() {
283	/*uint16_t lfo1_internal_depth;
284	switch (pRegion->LFO1Controller) {
285	case ::gig::lfo1_ctrl_internal:
286	lfo1_internal_depth = pRegion->LFO1InternalDepth;
287	pLFO1->ExtController = 0; // no external controller
288	bLFO1Enabled = (lfo1_internal_depth > 0);
289	break;
290	case ::gig::lfo1_ctrl_modwheel:
291	lfo1_internal_depth = 0;
292	pLFO1->ExtController = 1; // MIDI controller 1
293	bLFO1Enabled = (pRegion->LFO1ControlDepth > 0);
294	break;
295	case ::gig::lfo1_ctrl_breath:
296	lfo1_internal_depth = 0;
297	pLFO1->ExtController = 2; // MIDI controller 2
298	bLFO1Enabled = (pRegion->LFO1ControlDepth > 0);
299	break;
300	case ::gig::lfo1_ctrl_internal_modwheel:
301	lfo1_internal_depth = pRegion->LFO1InternalDepth;
302	pLFO1->ExtController = 1; // MIDI controller 1
303	bLFO1Enabled = (lfo1_internal_depth > 0 \|\| pRegion->LFO1ControlDepth > 0);
304	break;
305	case ::gig::lfo1_ctrl_internal_breath:
306	lfo1_internal_depth = pRegion->LFO1InternalDepth;
307	pLFO1->ExtController = 2; // MIDI controller 2
308	bLFO1Enabled = (lfo1_internal_depth > 0 \|\| pRegion->LFO1ControlDepth > 0);
309	break;
310	default:
311	lfo1_internal_depth = 0;
312	pLFO1->ExtController = 0; // no external controller
313	bLFO1Enabled = false;
314	}
315	if (bLFO1Enabled) {
316	pLFO1->trigger(pRegion->LFO1Frequency,
317	start_level_min,
318	lfo1_internal_depth,
319	pRegion->LFO1ControlDepth,
320	pRegion->LFO1FlipPhase,
321	pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
322	pLFO1->update(pLFO1->ExtController ? GetSf2EngineChannel()->ControllerTable[pLFO1->ExtController] : 0);
323	}*/ // TODO: ^^^
324	bLFO1Enabled = false;
325	}
326
327	void Voice::InitLFO2() {
328	/*uint16_t lfo2_internal_depth;
329	switch (pRegion->LFO2Controller) {
330	case ::gig::lfo2_ctrl_internal:
331	lfo2_internal_depth = pRegion->LFO2InternalDepth;
332	pLFO2->ExtController = 0; // no external controller
333	bLFO2Enabled = (lfo2_internal_depth > 0);
334	break;
335	case ::gig::lfo2_ctrl_modwheel:
336	lfo2_internal_depth = 0;
337	pLFO2->ExtController = 1; // MIDI controller 1
338	bLFO2Enabled = (pRegion->LFO2ControlDepth > 0);
339	break;
340	case ::gig::lfo2_ctrl_foot:
341	lfo2_internal_depth = 0;
342	pLFO2->ExtController = 4; // MIDI controller 4
343	bLFO2Enabled = (pRegion->LFO2ControlDepth > 0);
344	break;
345	case ::gig::lfo2_ctrl_internal_modwheel:
346	lfo2_internal_depth = pRegion->LFO2InternalDepth;
347	pLFO2->ExtController = 1; // MIDI controller 1
348	bLFO2Enabled = (lfo2_internal_depth > 0 \|\| pRegion->LFO2ControlDepth > 0);
349	break;
350	case ::gig::lfo2_ctrl_internal_foot:
351	lfo2_internal_depth = pRegion->LFO2InternalDepth;
352	pLFO2->ExtController = 4; // MIDI controller 4
353	bLFO2Enabled = (lfo2_internal_depth > 0 \|\| pRegion->LFO2ControlDepth > 0);
354	break;
355	default:
356	lfo2_internal_depth = 0;
357	pLFO2->ExtController = 0; // no external controller
358	bLFO2Enabled = false;
359	}
360	if (bLFO2Enabled) {
361	pLFO2->trigger(pRegion->LFO2Frequency,
362	start_level_max,
363	lfo2_internal_depth,
364	pRegion->LFO2ControlDepth,
365	pRegion->LFO2FlipPhase,
366	pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
367	pLFO2->update(pLFO2->ExtController ? GetSf2EngineChannel()->ControllerTable[pLFO2->ExtController] : 0);
368	}*/ // TODO: ^^^
369	bLFO2Enabled = false;
370	}
371
372	void Voice::InitLFO3() {
373	/*uint16_t lfo3_internal_depth;
374	switch (pRegion->LFO3Controller) {
375	case ::gig::lfo3_ctrl_internal:
376	lfo3_internal_depth = pRegion->LFO3InternalDepth;
377	pLFO3->ExtController = 0; // no external controller
378	bLFO3Enabled = (lfo3_internal_depth > 0);
379	break;
380	case ::gig::lfo3_ctrl_modwheel:
381	lfo3_internal_depth = 0;
382	pLFO3->ExtController = 1; // MIDI controller 1
383	bLFO3Enabled = (pRegion->LFO3ControlDepth > 0);
384	break;
385	case ::gig::lfo3_ctrl_aftertouch:
386	lfo3_internal_depth = 0;
387	pLFO3->ExtController = 128;
388	bLFO3Enabled = true;
389	break;
390	case ::gig::lfo3_ctrl_internal_modwheel:
391	lfo3_internal_depth = pRegion->LFO3InternalDepth;
392	pLFO3->ExtController = 1; // MIDI controller 1
393	bLFO3Enabled = (lfo3_internal_depth > 0 \|\| pRegion->LFO3ControlDepth > 0);
394	break;
395	case ::gig::lfo3_ctrl_internal_aftertouch:
396	lfo3_internal_depth = pRegion->LFO3InternalDepth;
397	pLFO1->ExtController = 128;
398	bLFO3Enabled = (lfo3_internal_depth > 0 \|\| pRegion->LFO3ControlDepth > 0);
399	break;
400	default:
401	lfo3_internal_depth = 0;
402	pLFO3->ExtController = 0; // no external controller
403	bLFO3Enabled = false;
404	}
405	if (bLFO3Enabled) {
406	pLFO3->trigger(pRegion->LFO3Frequency,
407	start_level_mid,
408	lfo3_internal_depth,
409	pRegion->LFO3ControlDepth,
410	false,
411	pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE);
412	pLFO3->update(pLFO3->ExtController ? GetSf2EngineChannel()->ControllerTable[pLFO3->ExtController] : 0);
413	}*/ // TODO: ^^^
414	bLFO3Enabled = false;
415	}
416
417	float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
418	/*float cutoff = pRegion->GetVelocityCutoff(MIDIKeyVelocity);
419	if (pRegion->VCFKeyboardTracking) {
420	cutoff = RTMath::CentsToFreqRatioUnlimited((MIDIKey - pRegion->VCFKeyboardTrackingBreakpoint) 100);
421	}
422	return cutoff;*/ // TODO: ^^^
423	return 1.0f;
424	}
425
426	float Voice::CalculateFinalCutoff(float cutoffBase) {
427	/*int cvalue;
428	if (VCFCutoffCtrl.controller) {
429	cvalue = GetSf2EngineChannel()->ControllerTable[VCFCutoffCtrl.controller];
430	if (pRegion->VCFCutoffControllerInvert) cvalue = 127 - cvalue;
431	// VCFVelocityScale in this case means Minimum cutoff
432	if (cvalue < pRegion->VCFVelocityScale) cvalue = pRegion->VCFVelocityScale;
433	}
434	else {
435	cvalue = pRegion->VCFCutoff;
436	}
437	float fco = cutoffBase * float(cvalue);
438	if (fco > 127.0f) fco = 127.0f;
439
440	return fco;*/ // TODO: ^^^
441	return 0.0f;
442	}
443
444	uint8_t Voice::GetVCFCutoffCtrl() {
445	/*uint8_t ctrl;
446	switch (pRegion->VCFCutoffController) {
447	case ::gig::vcf_cutoff_ctrl_modwheel:
448	ctrl = 1;
449	break;
450	case ::gig::vcf_cutoff_ctrl_effect1:
451	ctrl = 12;
452	break;
453	case ::gig::vcf_cutoff_ctrl_effect2:
454	ctrl = 13;
455	break;
456	case ::gig::vcf_cutoff_ctrl_breath:
457	ctrl = 2;
458	break;
459	case ::gig::vcf_cutoff_ctrl_foot:
460	ctrl = 4;
461	break;
462	case ::gig::vcf_cutoff_ctrl_sustainpedal:
463	ctrl = 64;
464	break;
465	case ::gig::vcf_cutoff_ctrl_softpedal:
466	ctrl = 67;
467	break;
468	case ::gig::vcf_cutoff_ctrl_genpurpose7:
469	ctrl = 82;
470	break;
471	case ::gig::vcf_cutoff_ctrl_genpurpose8:
472	ctrl = 83;
473	break;
474	case ::gig::vcf_cutoff_ctrl_aftertouch:
475	ctrl = 128;
476	break;
477	case ::gig::vcf_cutoff_ctrl_none:
478	default:
479	ctrl = 0;
480	break;
481	}
482
483	return ctrl;*/ // TODO: ^^^
484	return 0;
485	}
486
487	uint8_t Voice::GetVCFResonanceCtrl() {
488	/*uint8_t ctrl;
489	switch (pRegion->VCFResonanceController) {
490	case ::gig::vcf_res_ctrl_genpurpose3:
491	ctrl = 18;
492	break;
493	case ::gig::vcf_res_ctrl_genpurpose4:
494	ctrl = 19;
495	break;
496	case ::gig::vcf_res_ctrl_genpurpose5:
497	ctrl = 80;
498	break;
499	case ::gig::vcf_res_ctrl_genpurpose6:
500	ctrl = 81;
501	break;
502	case ::gig::vcf_res_ctrl_none:
503	default:
504	ctrl = 0;
505	}
506
507	return ctrl;*/ // TODO: ^^^
508	return 0;
509	}
510
511	void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
512	if (itEvent->Param.Note.Key != MIDIKey) {
513	// kill the voice fast
514	pEG1->enterFadeOutStage();
515	}
516	}
517
518	}} // namespace LinuxSampler::sf2