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 - 2015 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 #define LN_10_DIV_20 0.115129254649702 31 32 namespace LinuxSampler { namespace sfz { 33 34 typedef LinuxSampler::VoiceBase<EngineChannel, ::sfz::Region, Sample, DiskThread> SfzVoiceBase; 35 Voice()36 Voice::Voice(): SfzVoiceBase(&SignalRack), SignalRack(this) { 37 pEngine = NULL; 38 bEqSupport = true; 39 } 40 ~Voice()41 Voice::~Voice() { 42 43 } 44 GetSfzEngineChannel()45 EngineChannel* Voice::GetSfzEngineChannel() { 46 return static_cast<EngineChannel*>(pEngineChannel); 47 } 48 SetEngine(LinuxSampler::Engine * pEngine)49 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 GetSampleInfo()56 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 si.TotalFrameCount = (uint)pSample->GetTotalFrameCount(); 63 64 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 return si; 70 } 71 GetRegionInfo()72 Voice::RegionInfo Voice::GetRegionInfo() { 73 RegionInfo ri; 74 ri.UnityNote = pRegion->pitch_keycenter; 75 ri.FineTune = pRegion->tune + pRegion->transpose * 100; 76 ri.Pan = int(pRegion->pan * 0.63); // convert from -100..100 to -64..63 77 ri.SampleStartOffset = pRegion->offset ? *(pRegion->offset) : 0; 78 79 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 } 119 120 ri.VCFResonance = pRegion->resonance; 121 122 // rt_decay is in dB. Precalculate a suitable value for exp in 123 // GetReleaseTriggerAttenuation: -ln(10) / 20 * rt_decay 124 ri.ReleaseTriggerDecay = -LN_10_DIV_20 * pRegion->rt_decay; 125 126 return ri; 127 } 128 GetInstrumentInfo()129 Voice::InstrumentInfo Voice::GetInstrumentInfo() { 130 InstrumentInfo ii; 131 ii.FineTune = 0; // TODO: 132 ii.PitchbendRange = 2; // TODO: 133 134 return ii; 135 } 136 GetSampleAttenuation()137 double Voice::GetSampleAttenuation() { 138 return exp(LN_10_DIV_20 * pRegion->volume) * pRegion->amplitude / 100; 139 } 140 GetVelocityAttenuation(uint8_t MIDIKeyVelocity)141 double Voice::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) { 142 float offset = -pRegion->amp_veltrack; 143 if (offset <= 0) offset += 100; 144 return (offset + pRegion->amp_veltrack * pRegion->amp_velcurve[MIDIKeyVelocity]) / 100; 145 } 146 GetVelocityRelease(uint8_t MIDIKeyVelocity)147 double Voice::GetVelocityRelease(uint8_t MIDIKeyVelocity) { 148 return 127.0 / MIDIKeyVelocity; 149 } 150 ProcessCCEvent(RTList<Event>::Iterator & itEvent)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 ProcessChannelPressureEvent(RTList<Event>::Iterator & itEvent)160 void Voice::ProcessChannelPressureEvent(RTList<Event>::Iterator& itEvent) { 161 //TODO: ... 162 } 163 ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator & itEvent)164 void Voice::ProcessPolyphonicKeyPressureEvent(RTList<Event>::Iterator& itEvent) { 165 //TODO: ... 166 } 167 CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity)168 double Voice::CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity) { 169 /*float crossfadeVolume; 170 switch (pRegion->AttenuationController.type) { 171 case ::gig::attenuation_ctrl_t::type_channelaftertouch: 172 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSfzEngineChannel()->ControllerTable[128])]; 173 break; 174 case ::gig::attenuation_ctrl_t::type_velocity: 175 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(MIDIKeyVelocity)]; 176 break; 177 case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate 178 crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(GetSfzEngineChannel()->ControllerTable[pRegion->AttenuationController.controller_number])]; 179 break; 180 case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined 181 default: 182 crossfadeVolume = 1.0f; 183 } 184 185 return crossfadeVolume;*/ // TODO: ^^^ 186 return 1.0f; 187 } 188 GetEG1ControllerValue(uint8_t MIDIKeyVelocity)189 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 } 205 if (pRegion->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; 206 207 return eg1controllervalue;*/ // TODO: ^^^ 208 return 0; 209 } 210 CalculateEG1ControllerInfluence(double eg1ControllerValue)211 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; 219 220 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 GetEG2ControllerValue(uint8_t MIDIKeyVelocity)228 double Voice::GetEG2ControllerValue(uint8_t MIDIKeyVelocity) { 229 /*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 } 244 if (pRegion->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; 245 246 return eg2controllervalue;*/ // TODO: ^^^ 247 return 0; 248 } 249 CalculateEG2ControllerInfluence(double eg2ControllerValue)250 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; 255 256 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 CalculateCutoffBase(uint8_t MIDIKeyVelocity)264 float Voice::CalculateCutoffBase(uint8_t MIDIKeyVelocity) { 265 float cutoff = *pRegion->cutoff; 266 cutoff *= RTMath::CentsToFreqRatioUnlimited( 267 MIDIKeyVelocity / 127.0f * pRegion->fil_veltrack + 268 (MIDIKey() - pRegion->fil_keycenter) * pRegion->fil_keytrack); 269 return cutoff; 270 } 271 CalculateFinalCutoff(float cutoffBase)272 float Voice::CalculateFinalCutoff(float cutoffBase) { 273 float cutoff = cutoffBase; 274 if (cutoff > 0.49 * pEngine->SampleRate) cutoff = 0.49 * pEngine->SampleRate; 275 return cutoff; 276 } 277 GetReleaseTriggerAttenuation(float noteLength)278 float Voice::GetReleaseTriggerAttenuation(float noteLength) { 279 // pow(10, -rt_decay * noteLength / 20): 280 return expf(RgnInfo.ReleaseTriggerDecay * noteLength); 281 } 282 GetReleaseTriggerFlags()283 release_trigger_t Voice::GetReleaseTriggerFlags() { 284 return release_trigger_noteoff; 285 } 286 ProcessGroupEvent(RTList<Event>::Iterator & itEvent)287 void Voice::ProcessGroupEvent(RTList<Event>::Iterator& itEvent) { 288 dmsg(4,("Voice %p processGroupEvents event type=%d", (void*)this, itEvent->Type)); 289 if (itEvent->Type == Event::type_control_change || 290 (Type & Voice::type_controller_triggered) || 291 itEvent->Param.Note.Key != HostKey()) { 292 dmsg(4,("Voice %p - kill", (void*)this)); 293 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 SignalRack.EnterFadeOutStage(); 299 } 300 } 301 } 302 SetSampleStartOffset()303 void Voice::SetSampleStartOffset() { 304 AbstractVoice::SetSampleStartOffset(); 305 306 if (DiskVoice && Pos > pSample->MaxOffset) { 307 // The offset is applied to the RAM buffer 308 finalSynthesisParameters.dPos = 0; 309 Pos = 0; 310 } 311 } 312 CalculateFadeOutCoeff(float FadeOutTime,float SampleRate)313 void Voice::CalculateFadeOutCoeff(float FadeOutTime, float SampleRate) { 314 SignalRack.CalculateFadeOutCoeff(FadeOutTime, SampleRate); 315 } 316 CalculatePan(uint8_t pan)317 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 }} // namespace LinuxSampler::sfz 324