3 |
* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
4 |
* * |
* * |
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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 * |
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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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#include "EGADSR.h" |
#include "EGADSR.h" |
25 |
#include "Manipulator.h" |
#include "Manipulator.h" |
26 |
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#include "../../common/Features.h" |
27 |
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#include "Synthesizer.h" |
28 |
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|
29 |
#include "Voice.h" |
#include "Voice.h" |
30 |
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59 |
pLFO2 = NULL; |
pLFO2 = NULL; |
60 |
pLFO3 = NULL; |
pLFO3 = NULL; |
61 |
KeyGroup = 0; |
KeyGroup = 0; |
62 |
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SynthesisMode = 0; // set all mode bits to 0 first |
63 |
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// select synthesis implementation (currently either pure C++ or MMX+SSE(1)) |
64 |
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#if ARCH_X86 |
65 |
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SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, Features::supportsMMX() && Features::supportsSSE()); |
66 |
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#else |
67 |
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SYNTHESIS_MODE_SET_IMPLEMENTATION(SynthesisMode, false); |
68 |
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#endif |
69 |
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SYNTHESIS_MODE_SET_PROFILING(SynthesisMode, true); |
70 |
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|
71 |
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FilterLeft.Reset(); |
72 |
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FilterRight.Reset(); |
73 |
} |
} |
74 |
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|
75 |
Voice::~Voice() { |
Voice::~Voice() { |
117 |
* Initializes and triggers the voice, a disk stream will be launched if |
* Initializes and triggers the voice, a disk stream will be launched if |
118 |
* needed. |
* needed. |
119 |
* |
* |
120 |
|
* @param pEngineChannel - engine channel on which this voice was ordered |
121 |
* @param itNoteOnEvent - event that caused triggering of this voice |
* @param itNoteOnEvent - event that caused triggering of this voice |
122 |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
* @param PitchBend - MIDI detune factor (-8192 ... +8191) |
123 |
* @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data |
* @param pInstrument - points to the loaded instrument which provides sample wave(s) and articulation data |
124 |
* @param iLayer - layer number this voice refers to (only if this is a layered sound of course) |
* @param iLayer - layer number this voice refers to (only if this is a layered sound of course) |
125 |
* @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false) |
* @param ReleaseTriggerVoice - if this new voice is a release trigger voice (optional, default = false) |
126 |
* @param VoiceStealing - wether the voice is allowed to steal voices for further subvoices |
* @param VoiceStealing - wether the voice is allowed to steal voices for further subvoices |
127 |
* @returns 0 on success, a value < 0 if something failed |
* @returns 0 on success, a value < 0 if the voice wasn't triggered |
128 |
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* (either due to an error or e.g. because no region is |
129 |
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* defined for the given key) |
130 |
*/ |
*/ |
131 |
int Voice::Trigger(Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) { |
int Voice::Trigger(EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNoteOnEvent, int PitchBend, ::gig::Instrument* pInstrument, int iLayer, bool ReleaseTriggerVoice, bool VoiceStealing) { |
132 |
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this->pEngineChannel = pEngineChannel; |
133 |
if (!pInstrument) { |
if (!pInstrument) { |
134 |
dmsg(1,("voice::trigger: !pInstrument\n")); |
dmsg(1,("voice::trigger: !pInstrument\n")); |
135 |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
136 |
} |
} |
137 |
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if (itNoteOnEvent->FragmentPos() > pEngine->MaxSamplesPerCycle) { // FIXME: should be removed before the final release (purpose: just a sanity check for debugging) |
138 |
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dmsg(1,("Voice::Trigger(): ERROR, TriggerDelay > Totalsamples\n")); |
139 |
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} |
140 |
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141 |
Type = type_normal; |
Type = type_normal; |
142 |
MIDIKey = itNoteOnEvent->Param.Note.Key; |
MIDIKey = itNoteOnEvent->Param.Note.Key; |
148 |
itChildVoice = Pool<Voice>::Iterator(); |
itChildVoice = Pool<Voice>::Iterator(); |
149 |
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|
150 |
if (!pRegion) { |
if (!pRegion) { |
151 |
std::cerr << "gig::Voice: No Region defined for MIDI key " << MIDIKey << std::endl << std::flush; |
dmsg(4, ("gig::Voice: No Region defined for MIDI key %d\n", MIDIKey)); |
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KillImmediately(); |
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152 |
return -1; |
return -1; |
153 |
} |
} |
154 |
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156 |
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157 |
// get current dimension values to select the right dimension region |
// get current dimension values to select the right dimension region |
158 |
//FIXME: controller values for selecting the dimension region here are currently not sample accurate |
//FIXME: controller values for selecting the dimension region here are currently not sample accurate |
159 |
uint DimValues[5] = {0,0,0,0,0}; |
uint DimValues[8] = { 0 }; |
160 |
for (int i = pRegion->Dimensions - 1; i >= 0; i--) { |
for (int i = pRegion->Dimensions - 1; i >= 0; i--) { |
161 |
switch (pRegion->pDimensionDefinitions[i].dimension) { |
switch (pRegion->pDimensionDefinitions[i].dimension) { |
162 |
case ::gig::dimension_samplechannel: |
case ::gig::dimension_samplechannel: |
167 |
// if this is the 1st layer then spawn further voices for all the other layers |
// if this is the 1st layer then spawn further voices for all the other layers |
168 |
if (iLayer == 0) |
if (iLayer == 0) |
169 |
for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
for (int iNewLayer = 1; iNewLayer < pRegion->pDimensionDefinitions[i].zones; iNewLayer++) |
170 |
itChildVoice = pEngine->LaunchVoice(itNoteOnEvent, iNewLayer, ReleaseTriggerVoice, VoiceStealing); |
itChildVoice = pEngine->LaunchVoice(pEngineChannel, itNoteOnEvent, iNewLayer, ReleaseTriggerVoice, VoiceStealing); |
171 |
break; |
break; |
172 |
case ::gig::dimension_velocity: |
case ::gig::dimension_velocity: |
173 |
DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
180 |
DimValues[i] = (uint) ReleaseTriggerVoice; |
DimValues[i] = (uint) ReleaseTriggerVoice; |
181 |
break; |
break; |
182 |
case ::gig::dimension_keyboard: |
case ::gig::dimension_keyboard: |
183 |
DimValues[i] = (uint) itNoteOnEvent->Param.Note.Key; |
DimValues[i] = (uint) pEngineChannel->CurrentKeyDimension; |
184 |
break; |
break; |
185 |
case ::gig::dimension_modwheel: |
case ::gig::dimension_modwheel: |
186 |
DimValues[i] = pEngine->ControllerTable[1]; |
DimValues[i] = pEngineChannel->ControllerTable[1]; |
187 |
break; |
break; |
188 |
case ::gig::dimension_breath: |
case ::gig::dimension_breath: |
189 |
DimValues[i] = pEngine->ControllerTable[2]; |
DimValues[i] = pEngineChannel->ControllerTable[2]; |
190 |
break; |
break; |
191 |
case ::gig::dimension_foot: |
case ::gig::dimension_foot: |
192 |
DimValues[i] = pEngine->ControllerTable[4]; |
DimValues[i] = pEngineChannel->ControllerTable[4]; |
193 |
break; |
break; |
194 |
case ::gig::dimension_portamentotime: |
case ::gig::dimension_portamentotime: |
195 |
DimValues[i] = pEngine->ControllerTable[5]; |
DimValues[i] = pEngineChannel->ControllerTable[5]; |
196 |
break; |
break; |
197 |
case ::gig::dimension_effect1: |
case ::gig::dimension_effect1: |
198 |
DimValues[i] = pEngine->ControllerTable[12]; |
DimValues[i] = pEngineChannel->ControllerTable[12]; |
199 |
break; |
break; |
200 |
case ::gig::dimension_effect2: |
case ::gig::dimension_effect2: |
201 |
DimValues[i] = pEngine->ControllerTable[13]; |
DimValues[i] = pEngineChannel->ControllerTable[13]; |
202 |
break; |
break; |
203 |
case ::gig::dimension_genpurpose1: |
case ::gig::dimension_genpurpose1: |
204 |
DimValues[i] = pEngine->ControllerTable[16]; |
DimValues[i] = pEngineChannel->ControllerTable[16]; |
205 |
break; |
break; |
206 |
case ::gig::dimension_genpurpose2: |
case ::gig::dimension_genpurpose2: |
207 |
DimValues[i] = pEngine->ControllerTable[17]; |
DimValues[i] = pEngineChannel->ControllerTable[17]; |
208 |
break; |
break; |
209 |
case ::gig::dimension_genpurpose3: |
case ::gig::dimension_genpurpose3: |
210 |
DimValues[i] = pEngine->ControllerTable[18]; |
DimValues[i] = pEngineChannel->ControllerTable[18]; |
211 |
break; |
break; |
212 |
case ::gig::dimension_genpurpose4: |
case ::gig::dimension_genpurpose4: |
213 |
DimValues[i] = pEngine->ControllerTable[19]; |
DimValues[i] = pEngineChannel->ControllerTable[19]; |
214 |
break; |
break; |
215 |
case ::gig::dimension_sustainpedal: |
case ::gig::dimension_sustainpedal: |
216 |
DimValues[i] = pEngine->ControllerTable[64]; |
DimValues[i] = pEngineChannel->ControllerTable[64]; |
217 |
break; |
break; |
218 |
case ::gig::dimension_portamento: |
case ::gig::dimension_portamento: |
219 |
DimValues[i] = pEngine->ControllerTable[65]; |
DimValues[i] = pEngineChannel->ControllerTable[65]; |
220 |
break; |
break; |
221 |
case ::gig::dimension_sostenutopedal: |
case ::gig::dimension_sostenutopedal: |
222 |
DimValues[i] = pEngine->ControllerTable[66]; |
DimValues[i] = pEngineChannel->ControllerTable[66]; |
223 |
break; |
break; |
224 |
case ::gig::dimension_softpedal: |
case ::gig::dimension_softpedal: |
225 |
DimValues[i] = pEngine->ControllerTable[67]; |
DimValues[i] = pEngineChannel->ControllerTable[67]; |
226 |
break; |
break; |
227 |
case ::gig::dimension_genpurpose5: |
case ::gig::dimension_genpurpose5: |
228 |
DimValues[i] = pEngine->ControllerTable[80]; |
DimValues[i] = pEngineChannel->ControllerTable[80]; |
229 |
break; |
break; |
230 |
case ::gig::dimension_genpurpose6: |
case ::gig::dimension_genpurpose6: |
231 |
DimValues[i] = pEngine->ControllerTable[81]; |
DimValues[i] = pEngineChannel->ControllerTable[81]; |
232 |
break; |
break; |
233 |
case ::gig::dimension_genpurpose7: |
case ::gig::dimension_genpurpose7: |
234 |
DimValues[i] = pEngine->ControllerTable[82]; |
DimValues[i] = pEngineChannel->ControllerTable[82]; |
235 |
break; |
break; |
236 |
case ::gig::dimension_genpurpose8: |
case ::gig::dimension_genpurpose8: |
237 |
DimValues[i] = pEngine->ControllerTable[83]; |
DimValues[i] = pEngineChannel->ControllerTable[83]; |
238 |
break; |
break; |
239 |
case ::gig::dimension_effect1depth: |
case ::gig::dimension_effect1depth: |
240 |
DimValues[i] = pEngine->ControllerTable[91]; |
DimValues[i] = pEngineChannel->ControllerTable[91]; |
241 |
break; |
break; |
242 |
case ::gig::dimension_effect2depth: |
case ::gig::dimension_effect2depth: |
243 |
DimValues[i] = pEngine->ControllerTable[92]; |
DimValues[i] = pEngineChannel->ControllerTable[92]; |
244 |
break; |
break; |
245 |
case ::gig::dimension_effect3depth: |
case ::gig::dimension_effect3depth: |
246 |
DimValues[i] = pEngine->ControllerTable[93]; |
DimValues[i] = pEngineChannel->ControllerTable[93]; |
247 |
break; |
break; |
248 |
case ::gig::dimension_effect4depth: |
case ::gig::dimension_effect4depth: |
249 |
DimValues[i] = pEngine->ControllerTable[94]; |
DimValues[i] = pEngineChannel->ControllerTable[94]; |
250 |
break; |
break; |
251 |
case ::gig::dimension_effect5depth: |
case ::gig::dimension_effect5depth: |
252 |
DimValues[i] = pEngine->ControllerTable[95]; |
DimValues[i] = pEngineChannel->ControllerTable[95]; |
253 |
break; |
break; |
254 |
case ::gig::dimension_none: |
case ::gig::dimension_none: |
255 |
std::cerr << "gig::Voice::Trigger() Error: dimension=none\n" << std::flush; |
std::cerr << "gig::Voice::Trigger() Error: dimension=none\n" << std::flush; |
258 |
std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush; |
std::cerr << "gig::Voice::Trigger() Error: Unknown dimension\n" << std::flush; |
259 |
} |
} |
260 |
} |
} |
261 |
pDimRgn = pRegion->GetDimensionRegionByValue(DimValues[4],DimValues[3],DimValues[2],DimValues[1],DimValues[0]); |
pDimRgn = pRegion->GetDimensionRegionByValue(DimValues); |
262 |
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263 |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
264 |
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if (!pSample || !pSample->SamplesTotal) return -1; // no need to continue if sample is silent |
265 |
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266 |
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// select channel mode (mono or stereo) |
267 |
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SYNTHESIS_MODE_SET_CHANNELS(SynthesisMode, pSample->Channels == 2); |
268 |
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|
269 |
// get starting crossfade volume level |
// get starting crossfade volume level |
270 |
switch (pDimRgn->AttenuationController.type) { |
switch (pDimRgn->AttenuationController.type) { |
275 |
CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); |
CrossfadeVolume = CrossfadeAttenuation(itNoteOnEvent->Param.Note.Velocity); |
276 |
break; |
break; |
277 |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
case ::gig::attenuation_ctrl_t::type_controlchange: //FIXME: currently not sample accurate |
278 |
CrossfadeVolume = CrossfadeAttenuation(pEngine->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
CrossfadeVolume = CrossfadeAttenuation(pEngineChannel->ControllerTable[pDimRgn->AttenuationController.controller_number]); |
279 |
break; |
break; |
280 |
case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
case ::gig::attenuation_ctrl_t::type_none: // no crossfade defined |
281 |
default: |
default: |
285 |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
PanLeft = 1.0f - float(RTMath::Max(pDimRgn->Pan, 0)) / 63.0f; |
286 |
PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
PanRight = 1.0f - float(RTMath::Min(pDimRgn->Pan, 0)) / -64.0f; |
287 |
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pSample = pDimRgn->pSample; // sample won't change until the voice is finished |
|
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288 |
Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
Pos = pDimRgn->SampleStartOffset; // offset where we should start playback of sample (0 - 2000 sample points) |
289 |
|
|
290 |
// Check if the sample needs disk streaming or is too short for that |
// Check if the sample needs disk streaming or is too short for that |
321 |
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|
322 |
// calculate initial pitch value |
// calculate initial pitch value |
323 |
{ |
{ |
324 |
double pitchbasecents = pDimRgn->FineTune * 10 + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
double pitchbasecents = pDimRgn->FineTune + (int) pEngine->ScaleTuning[MIDIKey % 12]; |
325 |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
if (pDimRgn->PitchTrack) pitchbasecents += (MIDIKey - (int) pDimRgn->UnityNote) * 100; |
326 |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
this->PitchBase = RTMath::CentsToFreqRatio(pitchbasecents) * (double(pSample->SamplesPerSecond) / double(pEngine->pAudioOutputDevice->SampleRate())); |
327 |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
this->PitchBend = RTMath::CentsToFreqRatio(((double) PitchBend / 8192.0) * 200.0); // pitchbend wheel +-2 semitones = 200 cents |
328 |
} |
} |
329 |
|
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330 |
Volume = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) |
Volume = pDimRgn->GetVelocityAttenuation(itNoteOnEvent->Param.Note.Velocity) / 32768.0f; // we downscale by 32768 to convert from int16 value range to DSP value range (which is -1.0..1.0) |
331 |
|
|
332 |
|
Volume *= pDimRgn->SampleAttenuation; |
333 |
|
|
334 |
// setup EG 1 (VCA EG) |
// setup EG 1 (VCA EG) |
335 |
{ |
{ |
346 |
eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; |
eg1controllervalue = itNoteOnEvent->Param.Note.Velocity; |
347 |
break; |
break; |
348 |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg1_ctrl_t::type_controlchange: // MIDI control change controller |
349 |
eg1controllervalue = pEngine->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
eg1controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG1Controller.controller_number]; |
350 |
break; |
break; |
351 |
} |
} |
352 |
if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
if (pDimRgn->EG1ControllerInvert) eg1controllervalue = 127 - eg1controllervalue; |
365 |
pDimRgn->EG1InfiniteSustain, |
pDimRgn->EG1InfiniteSustain, |
366 |
pDimRgn->EG1Sustain, |
pDimRgn->EG1Sustain, |
367 |
pDimRgn->EG1Release + eg1release, |
pDimRgn->EG1Release + eg1release, |
368 |
Delay); |
// the SSE synthesis implementation requires |
369 |
|
// the vca start to be 16 byte aligned |
370 |
|
SYNTHESIS_MODE_GET_IMPLEMENTATION(SynthesisMode) ? |
371 |
|
Delay & 0xfffffffc : Delay); |
372 |
} |
} |
373 |
|
|
374 |
|
|
|
#if ENABLE_FILTER |
|
375 |
// setup EG 2 (VCF Cutoff EG) |
// setup EG 2 (VCF Cutoff EG) |
376 |
{ |
{ |
377 |
// get current value of EG2 controller |
// get current value of EG2 controller |
387 |
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
eg2controllervalue = itNoteOnEvent->Param.Note.Velocity; |
388 |
break; |
break; |
389 |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
case ::gig::eg2_ctrl_t::type_controlchange: // MIDI control change controller |
390 |
eg2controllervalue = pEngine->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
eg2controllervalue = pEngineChannel->ControllerTable[pDimRgn->EG2Controller.controller_number]; |
391 |
break; |
break; |
392 |
} |
} |
393 |
if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
if (pDimRgn->EG2ControllerInvert) eg2controllervalue = 127 - eg2controllervalue; |
408 |
pDimRgn->EG2Release + eg2release, |
pDimRgn->EG2Release + eg2release, |
409 |
Delay); |
Delay); |
410 |
} |
} |
|
#endif // ENABLE_FILTER |
|
411 |
|
|
412 |
|
|
413 |
// setup EG 3 (VCO EG) |
// setup EG 3 (VCO EG) |
448 |
pLFO1->Trigger(pDimRgn->LFO1Frequency, |
pLFO1->Trigger(pDimRgn->LFO1Frequency, |
449 |
lfo1_internal_depth, |
lfo1_internal_depth, |
450 |
pDimRgn->LFO1ControlDepth, |
pDimRgn->LFO1ControlDepth, |
451 |
pEngine->ControllerTable[pLFO1->ExtController], |
pEngineChannel->ControllerTable[pLFO1->ExtController], |
452 |
pDimRgn->LFO1FlipPhase, |
pDimRgn->LFO1FlipPhase, |
453 |
pEngine->SampleRate, |
pEngine->SampleRate, |
454 |
Delay); |
Delay); |
455 |
} |
} |
456 |
|
|
457 |
#if ENABLE_FILTER |
|
458 |
// setup LFO 2 (VCF Cutoff LFO) |
// setup LFO 2 (VCF Cutoff LFO) |
459 |
{ |
{ |
460 |
uint16_t lfo2_internal_depth; |
uint16_t lfo2_internal_depth; |
486 |
pLFO2->Trigger(pDimRgn->LFO2Frequency, |
pLFO2->Trigger(pDimRgn->LFO2Frequency, |
487 |
lfo2_internal_depth, |
lfo2_internal_depth, |
488 |
pDimRgn->LFO2ControlDepth, |
pDimRgn->LFO2ControlDepth, |
489 |
pEngine->ControllerTable[pLFO2->ExtController], |
pEngineChannel->ControllerTable[pLFO2->ExtController], |
490 |
pDimRgn->LFO2FlipPhase, |
pDimRgn->LFO2FlipPhase, |
491 |
pEngine->SampleRate, |
pEngine->SampleRate, |
492 |
Delay); |
Delay); |
493 |
} |
} |
494 |
#endif // ENABLE_FILTER |
|
495 |
|
|
496 |
// setup LFO 3 (VCO LFO) |
// setup LFO 3 (VCO LFO) |
497 |
{ |
{ |
524 |
pLFO3->Trigger(pDimRgn->LFO3Frequency, |
pLFO3->Trigger(pDimRgn->LFO3Frequency, |
525 |
lfo3_internal_depth, |
lfo3_internal_depth, |
526 |
pDimRgn->LFO3ControlDepth, |
pDimRgn->LFO3ControlDepth, |
527 |
pEngine->ControllerTable[pLFO3->ExtController], |
pEngineChannel->ControllerTable[pLFO3->ExtController], |
528 |
false, |
false, |
529 |
pEngine->SampleRate, |
pEngine->SampleRate, |
530 |
Delay); |
Delay); |
531 |
} |
} |
532 |
|
|
533 |
#if ENABLE_FILTER |
|
534 |
#if FORCE_FILTER_USAGE |
#if FORCE_FILTER_USAGE |
535 |
FilterLeft.Enabled = FilterRight.Enabled = true; |
const bool bUseFilter = true; |
536 |
#else // use filter only if instrument file told so |
#else // use filter only if instrument file told so |
537 |
FilterLeft.Enabled = FilterRight.Enabled = pDimRgn->VCFEnabled; |
const bool bUseFilter = pDimRgn->VCFEnabled; |
538 |
#endif // FORCE_FILTER_USAGE |
#endif // FORCE_FILTER_USAGE |
539 |
if (pDimRgn->VCFEnabled) { |
SYNTHESIS_MODE_SET_FILTER(SynthesisMode, bUseFilter); |
540 |
|
if (bUseFilter) { |
541 |
#ifdef OVERRIDE_FILTER_CUTOFF_CTRL |
#ifdef OVERRIDE_FILTER_CUTOFF_CTRL |
542 |
VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL; |
VCFCutoffCtrl.controller = OVERRIDE_FILTER_CUTOFF_CTRL; |
543 |
#else // use the one defined in the instrument file |
#else // use the one defined in the instrument file |
607 |
FilterRight.SetType(OVERRIDE_FILTER_TYPE); |
FilterRight.SetType(OVERRIDE_FILTER_TYPE); |
608 |
#endif // OVERRIDE_FILTER_TYPE |
#endif // OVERRIDE_FILTER_TYPE |
609 |
|
|
610 |
VCFCutoffCtrl.value = pEngine->ControllerTable[VCFCutoffCtrl.controller]; |
VCFCutoffCtrl.value = pEngineChannel->ControllerTable[VCFCutoffCtrl.controller]; |
611 |
VCFResonanceCtrl.value = pEngine->ControllerTable[VCFResonanceCtrl.controller]; |
VCFResonanceCtrl.value = pEngineChannel->ControllerTable[VCFResonanceCtrl.controller]; |
612 |
|
|
613 |
// calculate cutoff frequency |
// calculate cutoff frequency |
614 |
float cutoff = (!VCFCutoffCtrl.controller) |
float cutoff = (!VCFCutoffCtrl.controller) |
625 |
VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; |
VCFCutoffCtrl.fvalue = cutoff - FILTER_CUTOFF_MIN; |
626 |
VCFResonanceCtrl.fvalue = resonance; |
VCFResonanceCtrl.fvalue = resonance; |
627 |
|
|
|
FilterLeft.SetParameters(cutoff, resonance, pEngine->SampleRate); |
|
|
FilterRight.SetParameters(cutoff, resonance, pEngine->SampleRate); |
|
|
|
|
628 |
FilterUpdateCounter = -1; |
FilterUpdateCounter = -1; |
629 |
} |
} |
630 |
else { |
else { |
631 |
VCFCutoffCtrl.controller = 0; |
VCFCutoffCtrl.controller = 0; |
632 |
VCFResonanceCtrl.controller = 0; |
VCFResonanceCtrl.controller = 0; |
633 |
} |
} |
|
#endif // ENABLE_FILTER |
|
634 |
|
|
635 |
return 0; // success |
return 0; // success |
636 |
} |
} |
648 |
*/ |
*/ |
649 |
void Voice::Render(uint Samples) { |
void Voice::Render(uint Samples) { |
650 |
|
|
651 |
|
// select default values for synthesis mode bits |
652 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, (PitchBase * PitchBend) != 1.0f); |
653 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, true); |
654 |
|
SYNTHESIS_MODE_SET_LOOP(SynthesisMode, false); |
655 |
|
|
656 |
// Reset the synthesis parameter matrix |
// Reset the synthesis parameter matrix |
657 |
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngine->GlobalVolume); |
|
658 |
|
pEngine->ResetSynthesisParameters(Event::destination_vca, this->Volume * this->CrossfadeVolume * pEngineChannel->GlobalVolume); |
659 |
pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); |
pEngine->ResetSynthesisParameters(Event::destination_vco, this->PitchBase); |
|
#if ENABLE_FILTER |
|
660 |
pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); |
pEngine->ResetSynthesisParameters(Event::destination_vcfc, VCFCutoffCtrl.fvalue); |
661 |
pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue); |
pEngine->ResetSynthesisParameters(Event::destination_vcfr, VCFResonanceCtrl.fvalue); |
|
#endif // ENABLE_FILTER |
|
|
|
|
662 |
|
|
663 |
// Apply events to the synthesis parameter matrix |
// Apply events to the synthesis parameter matrix |
664 |
ProcessEvents(Samples); |
ProcessEvents(Samples); |
665 |
|
|
|
|
|
666 |
// Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment |
// Let all modulators write their parameter changes to the synthesis parameter matrix for the current audio fragment |
667 |
pEG1->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent); |
pEG1->Process(Samples, pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend, itKillEvent); |
668 |
#if ENABLE_FILTER |
pEG2->Process(Samples, pEngineChannel->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
669 |
pEG2->Process(Samples, pEngine->pMIDIKeyInfo[MIDIKey].pEvents, itTriggerEvent, this->Pos, this->PitchBase * this->PitchBend); |
if (pEG3->Process(Samples)) { // if pitch EG is active |
670 |
#endif // ENABLE_FILTER |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
671 |
pEG3->Process(Samples); |
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
672 |
|
} |
673 |
pLFO1->Process(Samples); |
pLFO1->Process(Samples); |
|
#if ENABLE_FILTER |
|
674 |
pLFO2->Process(Samples); |
pLFO2->Process(Samples); |
675 |
#endif // ENABLE_FILTER |
if (pLFO3->Process(Samples)) { // if pitch LFO modulation is active |
676 |
pLFO3->Process(Samples); |
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
677 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
678 |
|
} |
|
#if ENABLE_FILTER |
|
|
CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters |
|
|
#endif // ENABLE_FILTER |
|
679 |
|
|
680 |
|
if (SYNTHESIS_MODE_GET_FILTER(SynthesisMode)) |
681 |
|
CalculateBiquadParameters(Samples); // calculate the final biquad filter parameters |
682 |
|
|
683 |
switch (this->PlaybackState) { |
switch (this->PlaybackState) { |
684 |
|
|
685 |
case playback_state_ram: { |
case playback_state_ram: { |
686 |
if (RAMLoop) InterpolateAndLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
if (RAMLoop) SYNTHESIS_MODE_SET_LOOP(SynthesisMode, true); // enable looping |
687 |
else InterpolateNoLoop(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
|
688 |
|
// render current fragment |
689 |
|
Synthesize(Samples, (sample_t*) pSample->GetCache().pStart, Delay); |
690 |
|
|
691 |
if (DiskVoice) { |
if (DiskVoice) { |
692 |
// check if we reached the allowed limit of the sample RAM cache |
// check if we reached the allowed limit of the sample RAM cache |
693 |
if (Pos > MaxRAMPos) { |
if (Pos > MaxRAMPos) { |
710 |
KillImmediately(); |
KillImmediately(); |
711 |
return; |
return; |
712 |
} |
} |
713 |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (RTMath::DoubleToInt(Pos) - MaxRAMPos)); |
DiskStreamRef.pStream->IncrementReadPos(pSample->Channels * (int(Pos) - MaxRAMPos)); |
714 |
Pos -= RTMath::DoubleToInt(Pos); |
Pos -= int(Pos); |
715 |
|
RealSampleWordsLeftToRead = -1; // -1 means no silence has been added yet |
716 |
} |
} |
717 |
|
|
718 |
|
const int sampleWordsLeftToRead = DiskStreamRef.pStream->GetReadSpace(); |
719 |
|
|
720 |
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
// add silence sample at the end if we reached the end of the stream (for the interpolator) |
721 |
if (DiskStreamRef.State == Stream::state_end && DiskStreamRef.pStream->GetReadSpace() < (pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels) { |
if (DiskStreamRef.State == Stream::state_end) { |
722 |
DiskStreamRef.pStream->WriteSilence((pEngine->MaxSamplesPerCycle << MAX_PITCH) / pSample->Channels); |
const int maxSampleWordsPerCycle = (pEngine->MaxSamplesPerCycle << MAX_PITCH) * pSample->Channels + 6; // +6 for the interpolator algorithm |
723 |
this->PlaybackState = playback_state_end; |
if (sampleWordsLeftToRead <= maxSampleWordsPerCycle) { |
724 |
|
// remember how many sample words there are before any silence has been added |
725 |
|
if (RealSampleWordsLeftToRead < 0) RealSampleWordsLeftToRead = sampleWordsLeftToRead; |
726 |
|
DiskStreamRef.pStream->WriteSilence(maxSampleWordsPerCycle - sampleWordsLeftToRead); |
727 |
|
} |
728 |
} |
} |
729 |
|
|
730 |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
sample_t* ptr = DiskStreamRef.pStream->GetReadPtr(); // get the current read_ptr within the ringbuffer where we read the samples from |
731 |
InterpolateNoLoop(Samples, ptr, Delay); |
|
732 |
DiskStreamRef.pStream->IncrementReadPos(RTMath::DoubleToInt(Pos) * pSample->Channels); |
// render current audio fragment |
733 |
Pos -= RTMath::DoubleToInt(Pos); |
Synthesize(Samples, ptr, Delay); |
734 |
|
|
735 |
|
const int iPos = (int) Pos; |
736 |
|
const int readSampleWords = iPos * pSample->Channels; // amount of sample words actually been read |
737 |
|
DiskStreamRef.pStream->IncrementReadPos(readSampleWords); |
738 |
|
Pos -= iPos; // just keep fractional part of Pos |
739 |
|
|
740 |
|
// change state of voice to 'end' if we really reached the end of the sample data |
741 |
|
if (RealSampleWordsLeftToRead >= 0) { |
742 |
|
RealSampleWordsLeftToRead -= readSampleWords; |
743 |
|
if (RealSampleWordsLeftToRead <= 0) this->PlaybackState = playback_state_end; |
744 |
|
} |
745 |
} |
} |
746 |
break; |
break; |
747 |
|
|
750 |
break; |
break; |
751 |
} |
} |
752 |
|
|
|
|
|
753 |
// Reset synthesis event lists (except VCO, as VCO events apply channel wide currently) |
// Reset synthesis event lists (except VCO, as VCO events apply channel wide currently) |
754 |
pEngine->pSynthesisEvents[Event::destination_vca]->clear(); |
pEngine->pSynthesisEvents[Event::destination_vca]->clear(); |
|
#if ENABLE_FILTER |
|
755 |
pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); |
pEngine->pSynthesisEvents[Event::destination_vcfc]->clear(); |
756 |
pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); |
pEngine->pSynthesisEvents[Event::destination_vcfr]->clear(); |
|
#endif // ENABLE_FILTER |
|
757 |
|
|
758 |
// Reset delay |
// Reset delay |
759 |
Delay = 0; |
Delay = 0; |
772 |
pLFO1->Reset(); |
pLFO1->Reset(); |
773 |
pLFO2->Reset(); |
pLFO2->Reset(); |
774 |
pLFO3->Reset(); |
pLFO3->Reset(); |
775 |
|
FilterLeft.Reset(); |
776 |
|
FilterRight.Reset(); |
777 |
DiskStreamRef.pStream = NULL; |
DiskStreamRef.pStream = NULL; |
778 |
DiskStreamRef.hStream = 0; |
DiskStreamRef.hStream = 0; |
779 |
DiskStreamRef.State = Stream::state_unused; |
DiskStreamRef.State = Stream::state_unused; |
799 |
} |
} |
800 |
while (itCCEvent) { |
while (itCCEvent) { |
801 |
if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller |
if (itCCEvent->Param.CC.Controller) { // if valid MIDI controller |
|
#if ENABLE_FILTER |
|
802 |
if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
if (itCCEvent->Param.CC.Controller == VCFCutoffCtrl.controller) { |
803 |
*pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent; |
*pEngine->pSynthesisEvents[Event::destination_vcfc]->allocAppend() = *itCCEvent; |
804 |
} |
} |
805 |
if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
if (itCCEvent->Param.CC.Controller == VCFResonanceCtrl.controller) { |
806 |
*pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent; |
*pEngine->pSynthesisEvents[Event::destination_vcfr]->allocAppend() = *itCCEvent; |
807 |
} |
} |
|
#endif // ENABLE_FILTER |
|
808 |
if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) { |
if (itCCEvent->Param.CC.Controller == pLFO1->ExtController) { |
809 |
pLFO1->SendEvent(itCCEvent); |
pLFO1->SendEvent(itCCEvent); |
810 |
} |
} |
|
#if ENABLE_FILTER |
|
811 |
if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) { |
if (itCCEvent->Param.CC.Controller == pLFO2->ExtController) { |
812 |
pLFO2->SendEvent(itCCEvent); |
pLFO2->SendEvent(itCCEvent); |
813 |
} |
} |
|
#endif // ENABLE_FILTER |
|
814 |
if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) { |
if (itCCEvent->Param.CC.Controller == pLFO3->ExtController) { |
815 |
pLFO3->SendEvent(itCCEvent); |
pLFO3->SendEvent(itCCEvent); |
816 |
} |
} |
855 |
|
|
856 |
itVCOEvent = itNextVCOEvent; |
itVCOEvent = itNextVCOEvent; |
857 |
} |
} |
858 |
if (!pVCOEventList->isEmpty()) this->PitchBend = pitch; |
if (!pVCOEventList->isEmpty()) { |
859 |
|
this->PitchBend = pitch; |
860 |
|
SYNTHESIS_MODE_SET_INTERPOLATE(SynthesisMode, true); |
861 |
|
SYNTHESIS_MODE_SET_CONSTPITCH(SynthesisMode, false); |
862 |
|
} |
863 |
} |
} |
864 |
|
|
865 |
// process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !) |
// process volume / attenuation events (TODO: we only handle and _expect_ crossfade events here ATM !) |
879 |
|
|
880 |
crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value); |
crossfadevolume = CrossfadeAttenuation(itVCAEvent->Param.CC.Value); |
881 |
|
|
882 |
float effective_volume = crossfadevolume * this->Volume * pEngine->GlobalVolume; |
float effective_volume = crossfadevolume * this->Volume * pEngineChannel->GlobalVolume; |
883 |
|
|
884 |
// apply volume value to the volume parameter sequence |
// apply volume value to the volume parameter sequence |
885 |
for (uint i = itVCAEvent->FragmentPos(); i < end; i++) { |
for (uint i = itVCAEvent->FragmentPos(); i < end; i++) { |
891 |
if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume; |
if (!pVCAEventList->isEmpty()) this->CrossfadeVolume = crossfadevolume; |
892 |
} |
} |
893 |
|
|
|
#if ENABLE_FILTER |
|
894 |
// process filter cutoff events |
// process filter cutoff events |
895 |
{ |
{ |
896 |
RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
RTList<Event>* pCutoffEventList = pEngine->pSynthesisEvents[Event::destination_vcfc]; |
947 |
} |
} |
948 |
if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time |
if (!pResonanceEventList->isEmpty()) VCFResonanceCtrl.fvalue = pResonanceEventList->last()->Param.CC.Value * 0.00787f; // needed for initialization of parameter matrix next time |
949 |
} |
} |
|
#endif // ENABLE_FILTER |
|
950 |
} |
} |
951 |
|
|
|
#if ENABLE_FILTER |
|
952 |
/** |
/** |
953 |
* Calculate all necessary, final biquad filter parameters. |
* Calculate all necessary, final biquad filter parameters. |
954 |
* |
* |
955 |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
* @param Samples - number of samples to be rendered in this audio fragment cycle |
956 |
*/ |
*/ |
957 |
void Voice::CalculateBiquadParameters(uint Samples) { |
void Voice::CalculateBiquadParameters(uint Samples) { |
|
if (!FilterLeft.Enabled) return; |
|
|
|
|
958 |
biquad_param_t bqbase; |
biquad_param_t bqbase; |
959 |
biquad_param_t bqmain; |
biquad_param_t bqmain; |
960 |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
float prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][0]; |
961 |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
float prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][0]; |
962 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
963 |
|
FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
964 |
pEngine->pBasicFilterParameters[0] = bqbase; |
pEngine->pBasicFilterParameters[0] = bqbase; |
965 |
pEngine->pMainFilterParameters[0] = bqmain; |
pEngine->pMainFilterParameters[0] = bqmain; |
966 |
|
|
967 |
float* bq; |
float* bq; |
968 |
for (int i = 1; i < Samples; i++) { |
for (int i = 1; i < Samples; i++) { |
969 |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
// recalculate biquad parameters if cutoff or resonance differ from previous sample point |
970 |
if (!(i & FILTER_UPDATE_MASK)) if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
if (!(i & FILTER_UPDATE_MASK)) { |
971 |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) { |
if (pEngine->pSynthesisParameters[Event::destination_vcfr][i] != prev_res || |
972 |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
pEngine->pSynthesisParameters[Event::destination_vcfc][i] != prev_cutoff) |
973 |
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
{ |
974 |
FilterLeft.SetParameters(&bqbase, &bqmain, prev_cutoff, prev_res, pEngine->SampleRate); |
prev_cutoff = pEngine->pSynthesisParameters[Event::destination_vcfc][i]; |
975 |
|
prev_res = pEngine->pSynthesisParameters[Event::destination_vcfr][i]; |
976 |
|
FilterLeft.SetParameters( &bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
977 |
|
FilterRight.SetParameters(&bqbase, &bqmain, prev_cutoff + FILTER_CUTOFF_MIN, prev_res, pEngine->SampleRate); |
978 |
|
} |
979 |
} |
} |
980 |
|
|
981 |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
//same as 'pEngine->pBasicFilterParameters[i] = bqbase;' |
982 |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
bq = (float*) &pEngine->pBasicFilterParameters[i]; |
983 |
bq[0] = bqbase.a1; |
bq[0] = bqbase.b0; |
984 |
bq[1] = bqbase.a2; |
bq[1] = bqbase.b1; |
985 |
bq[2] = bqbase.b0; |
bq[2] = bqbase.b2; |
986 |
bq[3] = bqbase.b1; |
bq[3] = bqbase.a1; |
987 |
bq[4] = bqbase.b2; |
bq[4] = bqbase.a2; |
988 |
|
|
989 |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
// same as 'pEngine->pMainFilterParameters[i] = bqmain;' |
990 |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
bq = (float*) &pEngine->pMainFilterParameters[i]; |
991 |
bq[0] = bqmain.a1; |
bq[0] = bqmain.b0; |
992 |
bq[1] = bqmain.a2; |
bq[1] = bqmain.b1; |
993 |
bq[2] = bqmain.b0; |
bq[2] = bqmain.b2; |
994 |
bq[3] = bqmain.b1; |
bq[3] = bqmain.a1; |
995 |
bq[4] = bqmain.b2; |
bq[4] = bqmain.a2; |
|
} |
|
|
} |
|
|
#endif // ENABLE_FILTER |
|
|
|
|
|
/** |
|
|
* Interpolates the input audio data (without looping). |
|
|
* |
|
|
* @param Samples - number of sample points to be rendered in this audio |
|
|
* fragment cycle |
|
|
* @param pSrc - pointer to input sample data |
|
|
* @param Skip - number of sample points to skip in output buffer |
|
|
*/ |
|
|
void Voice::InterpolateNoLoop(uint Samples, sample_t* pSrc, uint Skip) { |
|
|
int i = Skip; |
|
|
|
|
|
// FIXME: assuming either mono or stereo |
|
|
if (this->pSample->Channels == 2) { // Stereo Sample |
|
|
while (i < Samples) InterpolateStereo(pSrc, i); |
|
|
} |
|
|
else { // Mono Sample |
|
|
while (i < Samples) InterpolateMono(pSrc, i); |
|
996 |
} |
} |
997 |
} |
} |
998 |
|
|
999 |
/** |
/** |
1000 |
* Interpolates the input audio data, this method honors looping. |
* Synthesizes the current audio fragment for this voice. |
1001 |
* |
* |
1002 |
* @param Samples - number of sample points to be rendered in this audio |
* @param Samples - number of sample points to be rendered in this audio |
1003 |
* fragment cycle |
* fragment cycle |
1004 |
* @param pSrc - pointer to input sample data |
* @param pSrc - pointer to input sample data |
1005 |
* @param Skip - number of sample points to skip in output buffer |
* @param Skip - number of sample points to skip in output buffer |
1006 |
*/ |
*/ |
1007 |
void Voice::InterpolateAndLoop(uint Samples, sample_t* pSrc, uint Skip) { |
void Voice::Synthesize(uint Samples, sample_t* pSrc, uint Skip) { |
1008 |
int i = Skip; |
RunSynthesisFunction(SynthesisMode, *this, Samples, pSrc, Skip); |
|
|
|
|
// FIXME: assuming either mono or stereo |
|
|
if (pSample->Channels == 2) { // Stereo Sample |
|
|
if (pSample->LoopPlayCount) { |
|
|
// render loop (loop count limited) |
|
|
while (i < Samples && LoopCyclesLeft) { |
|
|
InterpolateStereo(pSrc, i); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
LoopCyclesLeft--; |
|
|
} |
|
|
} |
|
|
// render on without loop |
|
|
while (i < Samples) InterpolateStereo(pSrc, i); |
|
|
} |
|
|
else { // render loop (endless loop) |
|
|
while (i < Samples) { |
|
|
InterpolateStereo(pSrc, i); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize); |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
else { // Mono Sample |
|
|
if (pSample->LoopPlayCount) { |
|
|
// render loop (loop count limited) |
|
|
while (i < Samples && LoopCyclesLeft) { |
|
|
InterpolateMono(pSrc, i); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
LoopCyclesLeft--; |
|
|
} |
|
|
} |
|
|
// render on without loop |
|
|
while (i < Samples) InterpolateMono(pSrc, i); |
|
|
} |
|
|
else { // render loop (endless loop) |
|
|
while (i < Samples) { |
|
|
InterpolateMono(pSrc, i); |
|
|
if (Pos > pSample->LoopEnd) { |
|
|
Pos = pSample->LoopStart + fmod(Pos - pSample->LoopEnd, pSample->LoopSize);; |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
1009 |
} |
} |
1010 |
|
|
1011 |
/** |
/** |