engines/sfz/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 - 2015 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"

#define LN_10_DIV_20 0.115129254649702

namespace LinuxSampler { namespace sfz {

    typedef LinuxSampler::VoiceBase<EngineChannel, ::sfz::Region, Sample, DiskThread> SfzVoiceBase;

    Voice::Voice(): SfzVoiceBase(&SignalRack), SignalRack(this) {
        pEngine     = NULL;
        bEqSupport = true;
    }

    Voice::~Voice() {

    }

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

        si.HasLoops       = pRegion->HasLoop();
        si.LoopStart      = pRegion->GetLoopStart();
        si.LoopLength     = pRegion->GetLoopEnd() - pRegion->GetLoopStart();
        si.LoopPlayCount  = pRegion->GetLoopCount();
        si.Unpitched      = pRegion->pitch_keytrack == 0;
        return si;
    }

    Voice::RegionInfo Voice::GetRegionInfo() {
        RegionInfo ri;
        ri.UnityNote = pRegion->pitch_keycenter;
        ri.FineTune  = pRegion->tune + pRegion->transpose * 100;
        ri.Pan       = int(pRegion->pan * 0.63); // convert from -100..100 to -64..63
        ri.SampleStartOffset = pRegion->offset ? *(pRegion->offset) : 0;

        ri.VCFEnabled    = pRegion->cutoff;
        switch (pRegion->fil_type) {
        case ::sfz::LPF_1P:
            ri.VCFType = Filter::vcf_type_1p_lowpass;
            break;
        case ::sfz::LPF_2P:
            ri.VCFType = Filter::vcf_type_2p_lowpass;
            break;
        case ::sfz::LPF_4P:
            ri.VCFType = Filter::vcf_type_4p_lowpass;
            break;
        case ::sfz::LPF_6P:
            ri.VCFType = Filter::vcf_type_6p_lowpass;
            break;
        case ::sfz::HPF_1P:
            ri.VCFType = Filter::vcf_type_1p_highpass;
            break;
        case ::sfz::HPF_2P:
            ri.VCFType = Filter::vcf_type_2p_highpass;
            break;
        case ::sfz::HPF_4P:
            ri.VCFType = Filter::vcf_type_4p_highpass;
            break;
        case ::sfz::HPF_6P:
            ri.VCFType = Filter::vcf_type_6p_highpass;
            break;
        case ::sfz::BPF_1P:
        case ::sfz::BPF_2P:
            ri.VCFType = Filter::vcf_type_2p_bandpass;
            break;
        case ::sfz::BRF_1P:
        case ::sfz::BRF_2P:
            ri.VCFType = Filter::vcf_type_2p_bandreject;
            break;
        case ::sfz::APF_1P:
        case ::sfz::PKF_2P:
        default:
            ri.VCFEnabled = false;
            break;
        }

        ri.VCFResonance  = pRegion->resonance;

        // rt_decay is in dB. Precalculate a suitable value for exp in
        // GetReleaseTriggerAttenuation: -ln(10) / 20 * rt_decay
        ri.ReleaseTriggerDecay = -LN_10_DIV_20 * pRegion->rt_decay;

        return ri;
    }

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

        return ii;
    }

    double Voice::GetSampleAttenuation() {
        return exp(LN_10_DIV_20 * pRegion->volume) * pRegion->amplitude / 100;
    }

    double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
        float offset = -pRegion->amp_veltrack;
        if (offset <= 0) offset += 100;
        return (offset + pRegion->amp_veltrack * pRegion->amp_velcurve[MIDIKeyVelocity]) / 100;
    }

    double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
        return 127.0 / 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)]);
            }
        }*/ // TODO: ^^^
    }

    void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
        //TODO: ...
    }

    void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
        //TODO: ...
    }

    double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
        /*float crossfadeVolume;
        switch (pRegion->AttenuationController.type) {
            case ::gig::attenuation_ctrl_t::type_channelaftertouch:
                crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSfzEngineChannel()->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(GetSfzEngineChannel()->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 = GetSfzEngineChannel()->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 = GetSfzEngineChannel()->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;
    }

    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 = GetSfzEngineChannel()->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 = GetSfzEngineChannel()->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;
    }

    float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
        float cutoff = *pRegion->cutoff;
        cutoff *= RTMath::CentsToFreqRatioUnlimited(
            MIDIKeyVelocity / 127.0f * pRegion->fil_veltrack +
            (MIDIKey() - pRegion->fil_keycenter) * pRegion->fil_keytrack);
        return cutoff;
    }

    float Voice::CalculateFinalCutoff(float cutoffBase) {
        float cutoff = cutoffBase;
        if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate;
        return cutoff;
    }

    float Voice::GetReleaseTriggerAttenuation(float noteLength) {
        // pow(10, -rt_decay * noteLength / 20):
        return expf(RgnInfo.ReleaseTriggerDecay * noteLength);
    }

    release_trigger_t Voice::GetReleaseTriggerFlags() {
        return release_trigger_noteoff;
    }

    void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
        dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
        if (itEvent->Type == Event::type_control_change ||
            (Type & Voice::type_controller_triggered) ||
            itEvent->Param.Note.Key != HostKey()) {
            dmsg(4,("Voice %p - kill", (void*)this));
            if (pRegion->off_mode == ::sfz::OFF_NORMAL) {
                // turn off the voice by entering release envelope stage
                EnterReleaseStage();
            } else {
                // kill the voice fast
                SignalRack.EnterFadeOutStage();
            }
        }
    }

    void Voice::SetSampleStartOffset() {
        AbstractVoice::SetSampleStartOffset();

        if (DiskVoice && Pos > pSample->MaxOffset) {
            // The offset is applied to the RAM buffer
            finalSynthesisParameters.dPos = 0;
            Pos = 0;
        }
    }

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

    int Voice::CalculatePan(uint8_t pan) {
        // the value isn't limited to [0, 127] here, as this is done
        // later in SignalUnit.CalculatePan
        return pan + RgnInfo.Pan;
    }

}} // namespace LinuxSampler::sfz
1	iliev	2012	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5			* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	persson	2055	* Copyright (C) 2005 - 2008 Christian Schoenebeck *
7	persson	2837	* Copyright (C) 2009 - 2015 Christian Schoenebeck and Grigor Iliev *
8	iliev	2012	* *
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	iliev	2015	#include "Voice.h"
26
27	iliev	2012	#include "Engine.h"
28			#include "EngineChannel.h"
29
30	persson	2072	#define LN_10_DIV_20 0.115129254649702
31
32	iliev	2012	namespace LinuxSampler { namespace sfz {
33
34	schoenebeck	3034	typedef LinuxSampler::VoiceBase<EngineChannel, ::sfz::Region, Sample, DiskThread> SfzVoiceBase;
35
36			Voice::Voice(): SfzVoiceBase(&SignalRack), SignalRack(this) {
37	iliev	2012	pEngine = NULL;
38	iliev	2298	bEqSupport = true;
39	iliev	2012	}
40
41			Voice::~Voice() {
42	iliev	2015
43	iliev	2012	}
44
45	iliev	2015	EngineChannel* Voice::GetSfzEngineChannel() {
46			return static_cast<EngineChannel*>(pEngineChannel);
47			}
48
49	iliev	2012	void Voice::SetEngine(LinuxSampler::Engine* pEngine) {
50			Engine* engine = static_cast<Engine*>(pEngine);
51			this->pEngine = engine;
52			this->pDiskThread = engine->pDiskThread;
53			dmsg(6,("Voice::SetEngine()\n"));
54			}
55
56	iliev	2015	Voice::SampleInfo Voice::GetSampleInfo() {
57			SampleInfo si;
58			si.SampleRate = pSample->GetSampleRate();
59			si.ChannelCount = pSample->GetChannelCount();
60			si.FrameSize = pSample->GetFrameSize();
61			si.BitDepth = (pSample->GetFrameSize() / pSample->GetChannelCount()) * 8;
62	schoenebeck	3054	si.TotalFrameCount = (uint)pSample->GetTotalFrameCount();
63	iliev	2012
64	iliev	2021	si.HasLoops = pRegion->HasLoop();
65			si.LoopStart = pRegion->GetLoopStart();
66			si.LoopLength = pRegion->GetLoopEnd() - pRegion->GetLoopStart();
67			si.LoopPlayCount = pRegion->GetLoopCount();
68			si.Unpitched = pRegion->pitch_keytrack == 0;
69	iliev	2015	return si;
70			}
71	iliev	2012
72	iliev	2015	Voice::RegionInfo Voice::GetRegionInfo() {
73			RegionInfo ri;
74	iliev	2018	ri.UnityNote = pRegion->pitch_keycenter;
75	persson	2086	ri.FineTune = pRegion->tune + pRegion->transpose * 100;
76	persson	2045	ri.Pan = int(pRegion->pan * 0.63); // convert from -100..100 to -64..63
77	iliev	2216	ri.SampleStartOffset = pRegion->offset ? *(pRegion->offset) : 0;
78	iliev	2012
79	persson	2175	ri.VCFEnabled = pRegion->cutoff;
80			switch (pRegion->fil_type) {
81			case ::sfz::LPF_1P:
82			ri.VCFType = Filter::vcf_type_1p_lowpass;
83			break;
84			case ::sfz::LPF_2P:
85			ri.VCFType = Filter::vcf_type_2p_lowpass;
86			break;
87			case ::sfz::LPF_4P:
88			ri.VCFType = Filter::vcf_type_4p_lowpass;
89			break;
90			case ::sfz::LPF_6P:
91			ri.VCFType = Filter::vcf_type_6p_lowpass;
92			break;
93			case ::sfz::HPF_1P:
94			ri.VCFType = Filter::vcf_type_1p_highpass;
95			break;
96			case ::sfz::HPF_2P:
97			ri.VCFType = Filter::vcf_type_2p_highpass;
98			break;
99			case ::sfz::HPF_4P:
100			ri.VCFType = Filter::vcf_type_4p_highpass;
101			break;
102			case ::sfz::HPF_6P:
103			ri.VCFType = Filter::vcf_type_6p_highpass;
104			break;
105			case ::sfz::BPF_1P:
106			case ::sfz::BPF_2P:
107			ri.VCFType = Filter::vcf_type_2p_bandpass;
108			break;
109			case ::sfz::BRF_1P:
110			case ::sfz::BRF_2P:
111			ri.VCFType = Filter::vcf_type_2p_bandreject;
112			break;
113			case ::sfz::APF_1P:
114			case ::sfz::PKF_2P:
115			default:
116			ri.VCFEnabled = false;
117			break;
118			}
119	iliev	2012
120	persson	2175	ri.VCFResonance = pRegion->resonance;
121
122	persson	2061	// rt_decay is in dB. Precalculate a suitable value for exp in
123			// GetReleaseTriggerAttenuation: -ln(10) / 20 * rt_decay
124	persson	2072	ri.ReleaseTriggerDecay = -LN_10_DIV_20 * pRegion->rt_decay;
125	iliev	2012
126	iliev	2015	return ri;
127			}
128	iliev	2012
129	iliev	2015	Voice::InstrumentInfo Voice::GetInstrumentInfo() {
130			InstrumentInfo ii;
131			ii.FineTune = 0; // TODO:
132			ii.PitchbendRange = 2; // TODO:
133
134			return ii;
135			}
136
137			double Voice::GetSampleAttenuation() {
138	persson	2403	return exp(LN_10_DIV_20 * pRegion->volume) * pRegion->amplitude / 100;
139	iliev	2015	}
140
141			double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) {
142	persson	2315	float offset = -pRegion->amp_veltrack;
143			if (offset <= 0) offset += 100;
144			return (offset + pRegion->amp_veltrack * pRegion->amp_velcurve[MIDIKeyVelocity]) / 100;
145	iliev	2015	}
146
147			double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) {
148	persson	2176	return 127.0 / MIDIKeyVelocity;
149	iliev	2015	}
150
151			void Voice::ProcessCCEvent(RTList<Event>::Iterator& itEvent) {
152			/*if (itEvent->Type == Event::type_control_change && itEvent->Param.CC.Controller) { // if (valid) MIDI control change event
153			if (pRegion->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange &&
154			itEvent->Param.CC.Controller == pRegion->AttenuationController.controller_number) {
155			CrossfadeSmoother.update(AbstractEngine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]);
156			}
157			}*/ // TODO: ^^^
158			}
159
160	schoenebeck	2559	void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) {
161			//TODO: ...
162			}
163
164			void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) {
165			//TODO: ...
166			}
167
168	iliev	2015	double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) {
169	iliev	2012	/*float crossfadeVolume;
170			switch (pRegion->AttenuationController.type) {
171			case ::gig::attenuation_ctrl_t::type_channelaftertouch:
172	iliev	2015	crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSfzEngineChannel()->ControllerTable[128])];
173	iliev	2012	break;
174			case ::gig::attenuation_ctrl_t::type_velocity:
175	iliev	2015	crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)];
176	iliev	2012	break;
177			case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate
178	iliev	2015	crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSfzEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])];
179	iliev	2012	break;
180			case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined
181			default:
182			crossfadeVolume = 1.0f;
183			}
184
185	iliev	2015	return crossfadeVolume;*/ // TODO: ^^^
186			return 1.0f;
187			}
188	iliev	2012
189	iliev	2015	double Voice::GetEG1ControllerValue(uint8_t MIDIKeyVelocity) {
190			/*double eg1controllervalue = 0;
191			switch (pRegion->EG1Controller.type) {
192			case ::gig::eg1_ctrl_t::type_none: // no controller defined
193			eg1controllervalue = 0;
194			break;
195			case ::gig::eg1_ctrl_t::type_channelaftertouch:
196			eg1controllervalue = GetSfzEngineChannel()->ControllerTable[128];
197			break;
198			case ::gig::eg1_ctrl_t::type_velocity:
199			eg1controllervalue = MIDIKeyVelocity;
200			break;
201			case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller
202			eg1controllervalue = GetSfzEngineChannel()->ControllerTable[pRegion->EG1Controller.controller_number];
203			break;
204	iliev	2012	}
205	iliev	2015	if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue;
206	iliev	2012
207	iliev	2015	return eg1controllervalue;*/ // TODO: ^^^
208			return 0;
209			}
210	iliev	2012
211	iliev	2015	Voice::EGInfo Voice::CalculateEG1ControllerInfluence(double eg1ControllerValue) {
212			/*EGInfo eg;
213			// (eg1attack is different from the others)
214			eg.Attack = (pRegion->EG1ControllerAttackInfluence) ?
215			1 + 0.031 * (double) (pRegion->EG1ControllerAttackInfluence == 1 ?
216			1 : 1 << pRegion->EG1ControllerAttackInfluence) * eg1ControllerValue : 1.0;
217			eg.Decay = (pRegion->EG1ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerDecayInfluence) * eg1ControllerValue : 1.0;
218			eg.Release = (pRegion->EG1ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG1ControllerReleaseInfluence) * eg1ControllerValue : 1.0;
219	iliev	2012
220	iliev	2015	return eg;*/ // TODO: ^^^
221			EGInfo eg;
222			eg.Attack = 1.0;
223			eg.Decay = 1.0;
224			eg.Release = 1.0;
225			return eg;
226			}
227	iliev	2012
228	persson	2176	double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) {
229	iliev	2015	/*double eg2controllervalue = 0;
230			switch (pRegion->EG2Controller.type) {
231			case ::gig::eg2_ctrl_t::type_none: // no controller defined
232			eg2controllervalue = 0;
233			break;
234			case ::gig::eg2_ctrl_t::type_channelaftertouch:
235			eg2controllervalue = GetSfzEngineChannel()->ControllerTable[128];
236			break;
237			case ::gig::eg2_ctrl_t::type_velocity:
238			eg2controllervalue = MIDIKeyVelocity;
239			break;
240			case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller
241			eg2controllervalue = GetSfzEngineChannel()->ControllerTable[pRegion->EG2Controller.controller_number];
242			break;
243	iliev	2012	}
244	iliev	2015	if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue;
245	iliev	2012
246	iliev	2015	return eg2controllervalue;*/ // TODO: ^^^
247			return 0;
248			}
249	iliev	2012
250	iliev	2015	Voice::EGInfo Voice::CalculateEG2ControllerInfluence(double eg2ControllerValue) {
251			/*EGInfo eg;
252			eg.Attack = (pRegion->EG2ControllerAttackInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerAttackInfluence) * eg2ControllerValue : 1.0;
253			eg.Decay = (pRegion->EG2ControllerDecayInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerDecayInfluence) * eg2ControllerValue : 1.0;
254			eg.Release = (pRegion->EG2ControllerReleaseInfluence) ? 1 + 0.00775 * (double) (1 << pRegion->EG2ControllerReleaseInfluence) * eg2ControllerValue : 1.0;
255	iliev	2012
256	iliev	2015	return eg;*/ // TODO: ^^^
257			EGInfo eg;
258			eg.Attack = 1.0;
259			eg.Decay = 1.0;
260			eg.Release = 1.0;
261			return eg;
262			}
263	iliev	2012
264	iliev	2015	float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) {
265	persson	2175	float cutoff = *pRegion->cutoff;
266			cutoff *= RTMath::CentsToFreqRatioUnlimited(
267			MIDIKeyVelocity / 127.0f * pRegion->fil_veltrack +
268	schoenebeck	2879	(MIDIKey() - pRegion->fil_keycenter) * pRegion->fil_keytrack);
269	persson	2175	return cutoff;
270	iliev	2012	}
271
272	iliev	2015	float Voice::CalculateFinalCutoff(float cutoffBase) {
273	iliev	2252	float cutoff = cutoffBase;
274	persson	2175	if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate;
275			return cutoff;
276	iliev	2012	}
277
278	persson	2061	float Voice::GetReleaseTriggerAttenuation(float noteLength) {
279			// pow(10, -rt_decay * noteLength / 20):
280			return expf(RgnInfo.ReleaseTriggerDecay * noteLength);
281			}
282
283	schoenebeck	3444	release_trigger_t Voice::GetReleaseTriggerFlags() {
284			return release_trigger_noteoff;
285			}
286
287	persson	2114	void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) {
288	persson	2837	dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type));
289	persson	2115	if (itEvent->Type == Event::type_control_change \|\|
290			(Type & Voice::type_controller_triggered) \|\|
291	schoenebeck	2879	itEvent->Param.Note.Key != HostKey()) {
292	persson	2837	dmsg(4,("Voice %p - kill", (void*)this));
293	persson	2114	if (pRegion->off_mode == ::sfz::OFF_NORMAL) {
294			// turn off the voice by entering release envelope stage
295			EnterReleaseStage();
296			} else {
297			// kill the voice fast
298	iliev	2218	SignalRack.EnterFadeOutStage();
299	persson	2114	}
300			}
301			}
302	schoenebeck	3251
303	iliev	2216	void Voice::SetSampleStartOffset() {
304	schoenebeck	3251	AbstractVoice::SetSampleStartOffset();
305
306			if (DiskVoice && Pos > pSample->MaxOffset) {
307	iliev	2216	// The offset is applied to the RAM buffer
308			finalSynthesisParameters.dPos = 0;
309			Pos = 0;
310			}
311			}
312	persson	2114
313	persson	2327	void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) {
314			SignalRack.CalculateFadeOutCoeff(FadeOutTime, SampleRate);
315			}
316
317	persson	2382	int Voice::CalculatePan(uint8_t pan) {
318			// the value isn't limited to [0, 127] here, as this is done
319			// later in SignalUnit.CalculatePan
320			return pan + RgnInfo.Pan;
321			}
322
323	iliev	2012	}} // namespace LinuxSampler::sfz