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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 Christian Schoenebeck * |
* Copyright (C) 2005, 2006 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
31 |
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const float Voice::FILTER_CUTOFF_COEFF(CalculateFilterCutoffCoeff()); |
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float Voice::CalculateFilterCutoffCoeff() { |
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return log(CONFIG_FILTER_CUTOFF_MAX / CONFIG_FILTER_CUTOFF_MIN); |
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} |
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32 |
Voice::Voice() { |
Voice::Voice() { |
33 |
pEngine = NULL; |
pEngine = NULL; |
34 |
pDiskThread = NULL; |
pDiskThread = NULL; |
79 |
int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) { |
int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::DimensionRegion* pDimRgn, type_t VoiceType, int iKeyGroup) { |
80 |
this->pEngineChannel = pEngineChannel; |
this->pEngineChannel = pEngineChannel; |
81 |
this->pDimRgn = pDimRgn; |
this->pDimRgn = pDimRgn; |
82 |
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Orphan = false; |
83 |
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84 |
#if CONFIG_DEVMODE |
#if CONFIG_DEVMODE |
85 |
if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging |
if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // just a sanity check for debugging |
99 |
// calculate volume |
// calculate volume |
100 |
const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity); |
const double velocityAttenuation = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity); |
101 |
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102 |
Volume = velocityAttenuation / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) |
// For 16 bit samples, we downscale by 32768 to convert from |
103 |
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// int16 value range to DSP value range (which is |
104 |
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// -1.0..1.0). For 24 bit, we downscale from int32. |
105 |
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float volume = velocityAttenuation / (pSample->BitDepth == 16 ? 32768.0f : 32768.0f * 65536.0f); |
106 |
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107 |
Volume *= pDimRgn->SampleAttenuation; |
volume *= pDimRgn->SampleAttenuation * pEngineChannel->GlobalVolume * GLOBAL_VOLUME; |
108 |
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109 |
// the volume of release triggered samples depends on note length |
// the volume of release triggered samples depends on note length |
110 |
if (Type == type_release_trigger) { |
if (Type == type_release_trigger) { |
112 |
pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate; |
pEngineChannel->pMIDIKeyInfo[MIDIKey].NoteOnTime) / pEngine->SampleRate; |
113 |
float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength; |
float attenuation = 1 - 0.01053 * (256 >> pDimRgn->ReleaseTriggerDecay) * noteLength; |
114 |
if (attenuation <= 0) return -1; |
if (attenuation <= 0) return -1; |
115 |
Volume *= attenuation; |
volume *= attenuation; |
116 |
} |
} |
117 |
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118 |
// select channel mode (mono or stereo) |
// select channel mode (mono or stereo) |
119 |
SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2); |
SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2); |
120 |
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// select bit depth (16 or 24) |
121 |
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SYNTHESIS_MODE_SET_BITDEPTH24(SynthesisMode, pSample->BitDepth == 24); |
122 |
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123 |
// get starting crossfade volume level |
// get starting crossfade volume level |
124 |
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float crossfadeVolume; |
125 |
switch (pDimRgn->AttenuationController.type) { |
switch (pDimRgn->AttenuationController.type) { |
126 |
case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
case ::gig::attenuation_ctrl_t::type_channelaftertouch: |
127 |
CrossfadeVolume = 1.0f; //TODO: aftertouch not supported yet |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[128])]; |
128 |
break; |
break; |
129 |
case ::gig::attenuation_ctrl_t::type_velocity: |
case ::gig::attenuation_ctrl_t::type_velocity: |
130 |
CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity)]; |
131 |
break; |
break; |
132 |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
133 |
CrossfadeVolume = CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
crossfadeVolume = Engine::CrossfadeCurve[CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number])]; |
134 |
break; |
break; |
135 |
case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
136 |
default: |
default: |
137 |
CrossfadeVolume = 1.0f; |
crossfadeVolume = 1.0f; |
138 |
} |
} |
139 |
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140 |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
VolumeLeft = volume * Engine::PanCurve[64 - pDimRgn->Pan]; |
141 |
PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
VolumeRight = volume * Engine::PanCurve[64 + pDimRgn->Pan]; |
142 |
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143 |
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float subfragmentRate = pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE; |
144 |
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CrossfadeSmoother.trigger(crossfadeVolume, subfragmentRate); |
145 |
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VolumeSmoother.trigger(pEngineChannel->MidiVolume, subfragmentRate); |
146 |
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PanLeftSmoother.trigger(pEngineChannel->GlobalPanLeft, subfragmentRate); |
147 |
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PanRightSmoother.trigger(pEngineChannel->GlobalPanRight, subfragmentRate); |
148 |
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149 |
finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
finalSynthesisParameters.dPos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
150 |
Pos = pDimRgn->SampleStartOffset; |
Pos = pDimRgn->SampleStartOffset; |
153 |
long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; |
long cachedsamples = pSample->GetCache().Size / pSample->FrameSize; |
154 |
DiskVoice = cachedsamples < pSample->SamplesTotal; |
DiskVoice = cachedsamples < pSample->SamplesTotal; |
155 |
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156 |
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const DLS::sample_loop_t& loopinfo = pDimRgn->pSampleLoops[0]; |
157 |
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158 |
if (DiskVoice) { // voice to be streamed from disk |
if (DiskVoice) { // voice to be streamed from disk |
159 |
MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK) |
MaxRAMPos = cachedsamples - (pEngine->MaxSamplesPerCycle << CONFIG_MAX_PITCH) / pSample->Channels; //TODO: this calculation is too pessimistic and may better be moved to Render() method, so it calculates MaxRAMPos dependent to the current demand of sample points to be rendered (e.g. in case of JACK) |
160 |
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161 |
// check if there's a loop defined which completely fits into the cached (RAM) part of the sample |
// check if there's a loop defined which completely fits into the cached (RAM) part of the sample |
162 |
if (pSample->Loops && pSample->LoopEnd <= MaxRAMPos) { |
RAMLoop = (pDimRgn->SampleLoops && (loopinfo.LoopStart + loopinfo.LoopLength) <= MaxRAMPos); |
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RAMLoop = true; |
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loop.uiTotalCycles = pSample->LoopPlayCount; |
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loop.uiCyclesLeft = pSample->LoopPlayCount; |
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loop.uiStart = pSample->LoopStart; |
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loop.uiEnd = pSample->LoopEnd; |
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loop.uiSize = pSample->LoopSize; |
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} |
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else RAMLoop = false; |
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164 |
if (pDiskThread->OrderNewStream(&DiskStreamRef, pSample, MaxRAMPos, !RAMLoop) < 0) { |
if (pDiskThread->OrderNewStream(&DiskStreamRef, pDimRgn, MaxRAMPos, !RAMLoop) < 0) { |
165 |
dmsg(1,("Disk stream order failed!\n")); |
dmsg(1,("Disk stream order failed!\n")); |
166 |
KillImmediately(); |
KillImmediately(); |
167 |
return -1; |
return -1; |
170 |
} |
} |
171 |
else { // RAM only voice |
else { // RAM only voice |
172 |
MaxRAMPos = cachedsamples; |
MaxRAMPos = cachedsamples; |
173 |
if (pSample->Loops) { |
RAMLoop = (pDimRgn->SampleLoops != 0); |
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RAMLoop = true; |
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loop.uiCyclesLeft = pSample->LoopPlayCount; |
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} |
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else RAMLoop = false; |
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174 |
dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no")); |
dmsg(4,("RAM only voice launched (Looping: %s)\n", (RAMLoop) ? "yes" : "no")); |
175 |
} |
} |
176 |
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if (RAMLoop) { |
177 |
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loop.uiTotalCycles = pSample->LoopPlayCount; |
178 |
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loop.uiCyclesLeft = pSample->LoopPlayCount; |
179 |
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loop.uiStart = loopinfo.LoopStart; |
180 |
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loop.uiEnd = loopinfo.LoopStart + loopinfo.LoopLength; |
181 |
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loop.uiSize = loopinfo.LoopLength; |
182 |
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} |
183 |
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184 |
// calculate initial pitch value |
// calculate initial pitch value |
185 |
{ |
{ |
201 |
eg1controllervalue = 0; |
eg1controllervalue = 0; |
202 |
break; |
break; |
203 |
case ::gig::eg1_ctrl_t::type_channelaftertouch: |
case ::gig::eg1_ctrl_t::type_channelaftertouch: |
204 |
eg1controllervalue = 0; // TODO: aftertouch not yet supported |
eg1controllervalue = pEngineChannel->ControllerTable[128]; |
205 |
break; |
break; |
206 |
case ::gig::eg1_ctrl_t::type_velocity: |
case ::gig::eg1_ctrl_t::type_velocity: |
207 |
eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; |
eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; |
232 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
233 |
} |
} |
234 |
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235 |
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#ifdef CONFIG_INTERPOLATE_VOLUME |
236 |
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// setup initial volume in synthesis parameters |
237 |
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#ifdef CONFIG_PROCESS_MUTED_CHANNELS |
238 |
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if (pEngineChannel->GetMute()) { |
239 |
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finalSynthesisParameters.fFinalVolumeLeft = 0; |
240 |
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finalSynthesisParameters.fFinalVolumeRight = 0; |
241 |
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} |
242 |
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else |
243 |
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#else |
244 |
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{ |
245 |
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float finalVolume = pEngineChannel->MidiVolume * crossfadeVolume * EG1.getLevel(); |
246 |
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247 |
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finalSynthesisParameters.fFinalVolumeLeft = finalVolume * VolumeLeft * pEngineChannel->GlobalPanLeft; |
248 |
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finalSynthesisParameters.fFinalVolumeRight = finalVolume * VolumeRight * pEngineChannel->GlobalPanRight; |
249 |
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} |
250 |
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#endif |
251 |
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#endif |
252 |
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// setup EG 2 (VCF Cutoff EG) |
// setup EG 2 (VCF Cutoff EG) |
254 |
{ |
{ |
259 |
eg2controllervalue = 0; |
eg2controllervalue = 0; |
260 |
break; |
break; |
261 |
case ::gig::eg2_ctrl_t::type_channelaftertouch: |
case ::gig::eg2_ctrl_t::type_channelaftertouch: |
262 |
eg2controllervalue = 0; // TODO: aftertouch not yet supported |
eg2controllervalue = pEngineChannel->ControllerTable[128]; |
263 |
break; |
break; |
264 |
case ::gig::eg2_ctrl_t::type_velocity: |
case ::gig::eg2_ctrl_t::type_velocity: |
265 |
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
290 |
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291 |
// setup EG 3 (VCO EG) |
// setup EG 3 (VCO EG) |
292 |
{ |
{ |
293 |
double eg3depth = RTMath::CentsToFreqRatio(pDimRgn->EG3Depth); |
// if portamento mode is on, we dedicate EG3 purely for portamento, otherwise if portamento is off we do as told by the patch |
294 |
EG3.trigger(eg3depth, pDimRgn->EG3Attack, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
bool bPortamento = pEngineChannel->PortamentoMode && pEngineChannel->PortamentoPos >= 0.0f; |
295 |
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float eg3depth = (bPortamento) |
296 |
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? RTMath::CentsToFreqRatio((pEngineChannel->PortamentoPos - (float) MIDIKey) * 100) |
297 |
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: RTMath::CentsToFreqRatio(pDimRgn->EG3Depth); |
298 |
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float eg3time = (bPortamento) |
299 |
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? pEngineChannel->PortamentoTime |
300 |
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: pDimRgn->EG3Attack; |
301 |
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EG3.trigger(eg3depth, eg3time, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
302 |
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dmsg(5,("PortamentoPos=%f, depth=%f, time=%f\n", pEngineChannel->PortamentoPos, eg3depth, eg3time)); |
303 |
} |
} |
304 |
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305 |
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337 |
pLFO1->ExtController = 0; // no external controller |
pLFO1->ExtController = 0; // no external controller |
338 |
bLFO1Enabled = false; |
bLFO1Enabled = false; |
339 |
} |
} |
340 |
if (bLFO1Enabled) pLFO1->trigger(pDimRgn->LFO1Frequency, |
if (bLFO1Enabled) { |
341 |
start_level_max, |
pLFO1->trigger(pDimRgn->LFO1Frequency, |
342 |
lfo1_internal_depth, |
start_level_min, |
343 |
pDimRgn->LFO1ControlDepth, |
lfo1_internal_depth, |
344 |
pDimRgn->LFO1FlipPhase, |
pDimRgn->LFO1ControlDepth, |
345 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
pDimRgn->LFO1FlipPhase, |
346 |
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pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
347 |
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pLFO1->update(pLFO1->ExtController ? pEngineChannel->ControllerTable[pLFO1->ExtController] : 0); |
348 |
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} |
349 |
} |
} |
350 |
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351 |
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383 |
pLFO2->ExtController = 0; // no external controller |
pLFO2->ExtController = 0; // no external controller |
384 |
bLFO2Enabled = false; |
bLFO2Enabled = false; |
385 |
} |
} |
386 |
if (bLFO2Enabled) pLFO2->trigger(pDimRgn->LFO2Frequency, |
if (bLFO2Enabled) { |
387 |
start_level_max, |
pLFO2->trigger(pDimRgn->LFO2Frequency, |
388 |
lfo2_internal_depth, |
start_level_max, |
389 |
pDimRgn->LFO2ControlDepth, |
lfo2_internal_depth, |
390 |
pDimRgn->LFO2FlipPhase, |
pDimRgn->LFO2ControlDepth, |
391 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
pDimRgn->LFO2FlipPhase, |
392 |
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pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
393 |
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pLFO2->update(pLFO2->ExtController ? pEngineChannel->ControllerTable[pLFO2->ExtController] : 0); |
394 |
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} |
395 |
} |
} |
396 |
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397 |
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411 |
break; |
break; |
412 |
case ::gig::lfo3_ctrl_aftertouch: |
case ::gig::lfo3_ctrl_aftertouch: |
413 |
lfo3_internal_depth = 0; |
lfo3_internal_depth = 0; |
414 |
pLFO3->ExtController = 0; // TODO: aftertouch not implemented yet |
pLFO3->ExtController = 128; |
415 |
bLFO3Enabled = false; // see TODO comment in line above |
bLFO3Enabled = true; |
416 |
break; |
break; |
417 |
case ::gig::lfo3_ctrl_internal_modwheel: |
case ::gig::lfo3_ctrl_internal_modwheel: |
418 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
421 |
break; |
break; |
422 |
case ::gig::lfo3_ctrl_internal_aftertouch: |
case ::gig::lfo3_ctrl_internal_aftertouch: |
423 |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
lfo3_internal_depth = pDimRgn->LFO3InternalDepth; |
424 |
pLFO1->ExtController = 0; // TODO: aftertouch not implemented yet |
pLFO1->ExtController = 128; |
425 |
bLFO3Enabled = (lfo3_internal_depth > 0 /*|| pDimRgn->LFO3ControlDepth > 0*/); // see TODO comment in line above |
bLFO3Enabled = (lfo3_internal_depth > 0 || pDimRgn->LFO3ControlDepth > 0); |
426 |
break; |
break; |
427 |
default: |
default: |
428 |
lfo3_internal_depth = 0; |
lfo3_internal_depth = 0; |
429 |
pLFO3->ExtController = 0; // no external controller |
pLFO3->ExtController = 0; // no external controller |
430 |
bLFO3Enabled = false; |
bLFO3Enabled = false; |
431 |
} |
} |
432 |
if (bLFO3Enabled) pLFO3->trigger(pDimRgn->LFO3Frequency, |
if (bLFO3Enabled) { |
433 |
start_level_mid, |
pLFO3->trigger(pDimRgn->LFO3Frequency, |
434 |
lfo3_internal_depth, |
start_level_mid, |
435 |
pDimRgn->LFO3ControlDepth, |
lfo3_internal_depth, |
436 |
false, |
pDimRgn->LFO3ControlDepth, |
437 |
pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
false, |
438 |
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pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
439 |
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pLFO3->update(pLFO3->ExtController ? pEngineChannel->ControllerTable[pLFO3->ExtController] : 0); |
440 |
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} |
441 |
} |
} |
442 |
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443 |
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479 |
case ::gig::vcf_cutoff_ctrl_genpurpose8: |
case ::gig::vcf_cutoff_ctrl_genpurpose8: |
480 |
VCFCutoffCtrl.controller = 83; |
VCFCutoffCtrl.controller = 83; |
481 |
break; |
break; |
482 |
case ::gig::vcf_cutoff_ctrl_aftertouch: //TODO: not implemented yet |
case ::gig::vcf_cutoff_ctrl_aftertouch: |
483 |
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VCFCutoffCtrl.controller = 128; |
484 |
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break; |
485 |
case ::gig::vcf_cutoff_ctrl_none: |
case ::gig::vcf_cutoff_ctrl_none: |
486 |
default: |
default: |
487 |
VCFCutoffCtrl.controller = 0; |
VCFCutoffCtrl.controller = 0; |
533 |
if (VCFCutoffCtrl.controller) { |
if (VCFCutoffCtrl.controller) { |
534 |
cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
cvalue = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
535 |
if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
if (pDimRgn->VCFCutoffControllerInvert) cvalue = 127 - cvalue; |
536 |
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// VCFVelocityScale in this case means Minimum cutoff |
537 |
if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale; |
if (cvalue < pDimRgn->VCFVelocityScale) cvalue = pDimRgn->VCFVelocityScale; |
538 |
} |
} |
539 |
else { |
else { |
540 |
cvalue = pDimRgn->VCFCutoff; |
cvalue = pDimRgn->VCFCutoff; |
541 |
} |
} |
542 |
cutoff *= float(cvalue) * 0.00787402f; // (1 / 127) |
cutoff *= float(cvalue); |
543 |
if (cutoff > 1.0) cutoff = 1.0; |
if (cutoff > 127.0f) cutoff = 127.0f; |
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cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN; |
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544 |
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545 |
// calculate resonance |
// calculate resonance |
546 |
float resonance = (float) VCFResonanceCtrl.value * 0.00787f; // 0.0..1.0 |
float resonance = (float) (VCFResonanceCtrl.controller ? VCFResonanceCtrl.value : pDimRgn->VCFResonance); |
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if (pDimRgn->VCFKeyboardTracking) { |
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resonance += (float) (itNoteOnEvent->Param.Note.Key - pDimRgn->VCFKeyboardTrackingBreakpoint) * 0.00787f; |
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} |
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Constrain(resonance, 0.0, 1.0); // correct resonance if outside allowed value range (0.0..1.0) |
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547 |
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548 |
VCFCutoffCtrl.fvalue = cutoff - CONFIG_FILTER_CUTOFF_MIN; |
VCFCutoffCtrl.fvalue = cutoff; |
549 |
VCFResonanceCtrl.fvalue = resonance; |
VCFResonanceCtrl.fvalue = resonance; |
550 |
} |
} |
551 |
else { |
else { |
622 |
} |
} |
623 |
} |
} |
624 |
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625 |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
sample_t* ptr = (sample_t*)DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
626 |
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627 |
// render current audio fragment |
// render current audio fragment |
628 |
Synthesize(Samples, ptr, Delay); |
Synthesize(Samples, ptr, Delay); |
675 |
* for the given time. |
* for the given time. |
676 |
* |
* |
677 |
* @param itEvent - iterator pointing to the next event to be processed |
* @param itEvent - iterator pointing to the next event to be processed |
678 |
* @param End - youngest time stamp where processing should be stopped |
* @param End - youngest time stamp where processing should be stopped |
679 |
*/ |
*/ |
680 |
void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) { |
void Voice::processTransitionEvents(RTList<Event>::Iterator& itEvent, uint End) { |
681 |
for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) { |
for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) { |
694 |
* the given time. |
* the given time. |
695 |
* |
* |
696 |
* @param itEvent - iterator pointing to the next event to be processed |
* @param itEvent - iterator pointing to the next event to be processed |
697 |
* @param End - youngest time stamp where processing should be stopped |
* @param End - youngest time stamp where processing should be stopped |
698 |
*/ |
*/ |
699 |
void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) { |
void Voice::processCCEvents(RTList<Event>::Iterator& itEvent, uint End) { |
700 |
for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) { |
for (; itEvent && itEvent->FragmentPos() <= End; ++itEvent) { |
717 |
} |
} |
718 |
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
if (pDimRgn->AttenuationController.type == ::gig::attenuation_ctrl_t::type_controlchange && |
719 |
itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { |
itEvent->Param.CC.Controller == pDimRgn->AttenuationController.controller_number) { |
720 |
processCrossFadeEvent(itEvent); |
CrossfadeSmoother.update(Engine::CrossfadeCurve[CrossfadeAttenuation(itEvent->Param.CC.Value)]); |
721 |
|
} |
722 |
|
if (itEvent->Param.CC.Controller == 7) { // volume |
723 |
|
VolumeSmoother.update(Engine::VolumeCurve[itEvent->Param.CC.Value]); |
724 |
|
} else if (itEvent->Param.CC.Controller == 10) { // panpot |
725 |
|
PanLeftSmoother.update(Engine::PanCurve[128 - itEvent->Param.CC.Value]); |
726 |
|
PanRightSmoother.update(Engine::PanCurve[itEvent->Param.CC.Value]); |
727 |
} |
} |
728 |
} else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event |
} else if (itEvent->Type == Event::type_pitchbend) { // if pitch bend event |
729 |
processPitchEvent(itEvent); |
processPitchEvent(itEvent); |
737 |
PitchBend = pitch; |
PitchBend = pitch; |
738 |
} |
} |
739 |
|
|
|
void Voice::processCrossFadeEvent(RTList<Event>::Iterator& itEvent) { |
|
|
CrossfadeVolume = CrossfadeAttenuation(itEvent->Param.CC.Value); |
|
|
#if CONFIG_PROCESS_MUTED_CHANNELS |
|
|
const float effectiveVolume = CrossfadeVolume * Volume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume); |
|
|
#else |
|
|
const float effectiveVolume = CrossfadeVolume * Volume * pEngineChannel->GlobalVolume; |
|
|
#endif |
|
|
fFinalVolume = effectiveVolume; |
|
|
} |
|
|
|
|
740 |
void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) { |
void Voice::processCutoffEvent(RTList<Event>::Iterator& itEvent) { |
741 |
int ccvalue = itEvent->Param.CC.Value; |
int ccvalue = itEvent->Param.CC.Value; |
742 |
if (VCFCutoffCtrl.value == ccvalue) return; |
if (VCFCutoffCtrl.value == ccvalue) return; |
743 |
VCFCutoffCtrl.value == ccvalue; |
VCFCutoffCtrl.value == ccvalue; |
744 |
if (pDimRgn->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue; |
if (pDimRgn->VCFCutoffControllerInvert) ccvalue = 127 - ccvalue; |
745 |
if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale; |
if (ccvalue < pDimRgn->VCFVelocityScale) ccvalue = pDimRgn->VCFVelocityScale; |
746 |
float cutoff = CutoffBase * float(ccvalue) * 0.00787402f; // (1 / 127) |
float cutoff = CutoffBase * float(ccvalue); |
747 |
if (cutoff > 1.0) cutoff = 1.0; |
if (cutoff > 127.0f) cutoff = 127.0f; |
748 |
cutoff = exp(cutoff * FILTER_CUTOFF_COEFF) * CONFIG_FILTER_CUTOFF_MIN - CONFIG_FILTER_CUTOFF_MIN; |
|
749 |
VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time |
VCFCutoffCtrl.fvalue = cutoff; // needed for initialization of fFinalCutoff next time |
750 |
fFinalCutoff = cutoff; |
fFinalCutoff = cutoff; |
751 |
} |
} |
754 |
// convert absolute controller value to differential |
// convert absolute controller value to differential |
755 |
const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value; |
const int ctrldelta = itEvent->Param.CC.Value - VCFResonanceCtrl.value; |
756 |
VCFResonanceCtrl.value = itEvent->Param.CC.Value; |
VCFResonanceCtrl.value = itEvent->Param.CC.Value; |
757 |
const float resonancedelta = (float) ctrldelta * 0.00787f; // 0.0..1.0 |
const float resonancedelta = (float) ctrldelta; |
758 |
fFinalResonance += resonancedelta; |
fFinalResonance += resonancedelta; |
759 |
// needed for initialization of parameter |
// needed for initialization of parameter |
760 |
VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value * 0.00787f; |
VCFResonanceCtrl.fvalue = itEvent->Param.CC.Value; |
761 |
} |
} |
762 |
|
|
763 |
/** |
/** |
769 |
* @param Skip - number of sample points to skip in output buffer |
* @param Skip - number of sample points to skip in output buffer |
770 |
*/ |
*/ |
771 |
void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) { |
772 |
finalSynthesisParameters.pOutLeft = &pEngineChannel->pOutputLeft[Skip]; |
finalSynthesisParameters.pOutLeft = &pEngineChannel->pChannelLeft->Buffer()[Skip]; |
773 |
finalSynthesisParameters.pOutRight = &pEngineChannel->pOutputRight[Skip]; |
finalSynthesisParameters.pOutRight = &pEngineChannel->pChannelRight->Buffer()[Skip]; |
774 |
finalSynthesisParameters.pSrc = pSrc; |
finalSynthesisParameters.pSrc = pSrc; |
775 |
|
|
776 |
RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first(); |
RTList<Event>::Iterator itCCEvent = pEngineChannel->pEvents->first(); |
781 |
while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent; |
while (itNoteEvent && itNoteEvent->FragmentPos() <= Skip) ++itNoteEvent; |
782 |
} |
} |
783 |
|
|
784 |
|
uint killPos; |
785 |
|
if (itKillEvent) killPos = RTMath::Min(itKillEvent->FragmentPos(), pEngine->MaxFadeOutPos); |
786 |
|
|
787 |
uint i = Skip; |
uint i = Skip; |
788 |
while (i < Samples) { |
while (i < Samples) { |
789 |
int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples); |
int iSubFragmentEnd = RTMath::Min(i + CONFIG_DEFAULT_SUBFRAGMENT_SIZE, Samples); |
790 |
|
|
791 |
// initialize all final synthesis parameters |
// initialize all final synthesis parameters |
792 |
finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend; |
finalSynthesisParameters.fFinalPitch = PitchBase * PitchBend; |
|
#if CONFIG_PROCESS_MUTED_CHANNELS |
|
|
fFinalVolume = this->Volume * this->CrossfadeVolume * (pEngineChannel->GetMute() ? 0 : pEngineChannel->GlobalVolume); |
|
|
#else |
|
|
fFinalVolume = this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume; |
|
|
#endif |
|
793 |
fFinalCutoff = VCFCutoffCtrl.fvalue; |
fFinalCutoff = VCFCutoffCtrl.fvalue; |
794 |
fFinalResonance = VCFResonanceCtrl.fvalue; |
fFinalResonance = VCFResonanceCtrl.fvalue; |
795 |
|
|
796 |
// process MIDI control change and pitchbend events for this subfragment |
// process MIDI control change and pitchbend events for this subfragment |
797 |
processCCEvents(itCCEvent, iSubFragmentEnd); |
processCCEvents(itCCEvent, iSubFragmentEnd); |
798 |
|
|
799 |
|
float fFinalVolume = VolumeSmoother.render() * CrossfadeSmoother.render(); |
800 |
|
#ifdef CONFIG_PROCESS_MUTED_CHANNELS |
801 |
|
if (pEngineChannel->GetMute()) fFinalVolume = 0; |
802 |
|
#endif |
803 |
|
|
804 |
// process transition events (note on, note off & sustain pedal) |
// process transition events (note on, note off & sustain pedal) |
805 |
processTransitionEvents(itNoteEvent, iSubFragmentEnd); |
processTransitionEvents(itNoteEvent, iSubFragmentEnd); |
806 |
|
|
807 |
|
// if the voice was killed in this subfragment, or if the |
808 |
|
// filter EG is finished, switch EG1 to fade out stage |
809 |
|
if ((itKillEvent && killPos <= iSubFragmentEnd) || |
810 |
|
(SYNTHESIS_MODE_GET_FILTER(SynthesisMode) && |
811 |
|
EG2.getSegmentType() == EGADSR::segment_end)) { |
812 |
|
EG1.enterFadeOutStage(); |
813 |
|
itKillEvent = Pool<Event>::Iterator(); |
814 |
|
} |
815 |
|
|
816 |
// process envelope generators |
// process envelope generators |
817 |
switch (EG1.getSegmentType()) { |
switch (EG1.getSegmentType()) { |
818 |
case EGADSR::segment_lin: |
case EGADSR::segment_lin: |
836 |
fFinalCutoff *= EG2.getLevel(); |
fFinalCutoff *= EG2.getLevel(); |
837 |
break; // noop |
break; // noop |
838 |
} |
} |
839 |
if (EG3.active()) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(EG3.render()); |
if (EG3.active()) finalSynthesisParameters.fFinalPitch *= EG3.render(); |
840 |
|
|
841 |
// process low frequency oscillators |
// process low frequency oscillators |
842 |
if (bLFO1Enabled) fFinalVolume *= pLFO1->render(); |
if (bLFO1Enabled) fFinalVolume *= (1.0f - pLFO1->render()); |
843 |
if (bLFO2Enabled) fFinalCutoff *= pLFO2->render(); |
if (bLFO2Enabled) fFinalCutoff *= pLFO2->render(); |
844 |
if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render()); |
if (bLFO3Enabled) finalSynthesisParameters.fFinalPitch *= RTMath::CentsToFreqRatio(pLFO3->render()); |
845 |
|
|
857 |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired); |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, bResamplingRequired); |
858 |
|
|
859 |
// prepare final synthesis parameters structure |
// prepare final synthesis parameters structure |
|
finalSynthesisParameters.fFinalVolumeLeft = fFinalVolume * PanLeft; |
|
|
finalSynthesisParameters.fFinalVolumeRight = fFinalVolume * PanRight; |
|
860 |
finalSynthesisParameters.uiToGo = iSubFragmentEnd - i; |
finalSynthesisParameters.uiToGo = iSubFragmentEnd - i; |
861 |
|
#ifdef CONFIG_INTERPOLATE_VOLUME |
862 |
|
finalSynthesisParameters.fFinalVolumeDeltaLeft = |
863 |
|
(fFinalVolume * VolumeLeft * PanLeftSmoother.render() - |
864 |
|
finalSynthesisParameters.fFinalVolumeLeft) / finalSynthesisParameters.uiToGo; |
865 |
|
finalSynthesisParameters.fFinalVolumeDeltaRight = |
866 |
|
(fFinalVolume * VolumeRight * PanRightSmoother.render() - |
867 |
|
finalSynthesisParameters.fFinalVolumeRight) / finalSynthesisParameters.uiToGo; |
868 |
|
#else |
869 |
|
finalSynthesisParameters.fFinalVolumeLeft = |
870 |
|
fFinalVolume * VolumeLeft * PanLeftSmoother.render(); |
871 |
|
finalSynthesisParameters.fFinalVolumeRight = |
872 |
|
fFinalVolume * VolumeRight * PanRightSmoother.render(); |
873 |
|
#endif |
874 |
// render audio for one subfragment |
// render audio for one subfragment |
875 |
RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop); |
RunSynthesisFunction(SynthesisMode, &finalSynthesisParameters, &loop); |
876 |
|
|
877 |
|
// stop the rendering if volume EG is finished |
878 |
|
if (EG1.getSegmentType() == EGADSR::segment_end) break; |
879 |
|
|
880 |
const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch; |
const double newPos = Pos + (iSubFragmentEnd - i) * finalSynthesisParameters.fFinalPitch; |
881 |
|
|
882 |
// increment envelopes' positions |
// increment envelopes' positions |
883 |
if (EG1.active()) { |
if (EG1.active()) { |
884 |
|
|
885 |
// if sample has a loop and loop start has been reached in this subfragment, send a special event to EG1 to let it finish the attack hold stage |
// if sample has a loop and loop start has been reached in this subfragment, send a special event to EG1 to let it finish the attack hold stage |
886 |
if (pSample->Loops && Pos <= pSample->LoopStart && pSample->LoopStart < newPos) { |
if (pDimRgn->SampleLoops && Pos <= pDimRgn->pSampleLoops[0].LoopStart && pDimRgn->pSampleLoops[0].LoopStart < newPos) { |
887 |
EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
EG1.update(EGADSR::event_hold_end, pEngine->SampleRate / CONFIG_DEFAULT_SUBFRAGMENT_SIZE); |
888 |
} |
} |
889 |
|
|
902 |
} |
} |
903 |
} |
} |
904 |
|
|
905 |
|
/** @brief Update current portamento position. |
906 |
|
* |
907 |
|
* Will be called when portamento mode is enabled to get the final |
908 |
|
* portamento position of this active voice from where the next voice(s) |
909 |
|
* might continue to slide on. |
910 |
|
* |
911 |
|
* @param itNoteOffEvent - event which causes this voice to die soon |
912 |
|
*/ |
913 |
|
void Voice::UpdatePortamentoPos(Pool<Event>::Iterator& itNoteOffEvent) { |
914 |
|
const float fFinalEG3Level = EG3.level(itNoteOffEvent->FragmentPos()); |
915 |
|
pEngineChannel->PortamentoPos = (float) MIDIKey + RTMath::FreqRatioToCents(fFinalEG3Level) * 0.01f; |
916 |
|
} |
917 |
|
|
918 |
/** |
/** |
919 |
* Immediately kill the voice. This method should not be used to kill |
* Immediately kill the voice. This method should not be used to kill |
920 |
* a normal, active voice, because it doesn't take care of things like |
* a normal, active voice, because it doesn't take care of things like |