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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2011 Grigor Iliev * |
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* * |
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* 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 * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#include "SfzSignalUnitRack.h" |
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#include "Voice.h" |
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|
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namespace LinuxSampler { namespace sfz { |
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SfzSignalUnit::SfzSignalUnit(SfzSignalUnitRack* rack): SignalUnit(rack), pVoice(rack->pVoice) { |
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} |
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double SfzSignalUnit::GetSampleRate() { |
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return pVoice->GetSampleRate() / CONFIG_DEFAULT_SUBFRAGMENT_SIZE; |
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} |
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|
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void EGv1Unit::Trigger() { |
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::sfz::Region* const pRegion = pVoice->pRegion; |
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// the length of the decay and release curves are dependent on the velocity |
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const double velrelease = 1 / pVoice->GetVelocityRelease(pVoice->MIDIVelocity); |
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|
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EG.trigger(uint(pRegion->ampeg_start * 10), |
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std::max(0.0, pRegion->ampeg_attack + pRegion->ampeg_vel2attack * velrelease), |
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std::max(0.0, pRegion->ampeg_hold + pRegion->ampeg_vel2hold * velrelease), |
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std::max(0.0, pRegion->ampeg_decay + pRegion->ampeg_vel2decay * velrelease), |
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uint(std::min(std::max(0.0, 10 * (pRegion->ampeg_sustain + pRegion->ampeg_vel2sustain * velrelease)), 1000.0)), |
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std::max(0.0, pRegion->ampeg_release + pRegion->ampeg_vel2release * velrelease), |
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GetSampleRate()); |
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} |
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|
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void EGv2Unit::Trigger() { |
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EG.trigger(*pEGInfo, GetSampleRate(), pVoice->MIDIVelocity); |
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} |
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|
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EndpointUnit::EndpointUnit(SfzSignalUnitRack* rack): EndpointSignalUnit(rack) { |
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|
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} |
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SfzSignalUnitRack* const EndpointUnit::GetRack() { |
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return static_cast<SfzSignalUnitRack* const>(pRack); |
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} |
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void EndpointUnit::Trigger() { |
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|
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} |
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bool EndpointUnit::Active() { |
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if (GetRack()->suVolEG.Active()) return true; |
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bool b = false; |
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for (int i = 0; i < GetRack()->volEGs.size(); i++) { |
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if (GetRack()->volEGs[i]->Active()) { b = true; break; } |
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} |
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return b; |
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} |
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float EndpointUnit::GetVolume() { |
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float vol = GetRack()->suVolEG.Active() ? GetRack()->suVolEG.GetLevel() : 0; |
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|
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for (int i = 0; i < GetRack()->volEGs.size(); i++) { |
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EGv2Unit* eg = GetRack()->volEGs[i]; |
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if (!eg->Active()) continue; |
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vol += eg->GetLevel() * (eg->pEGInfo->amplitude / 100.0f); |
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} |
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return vol; |
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} |
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|
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float EndpointUnit::GetFilterCutoff() { |
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return 1; |
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} |
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|
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float EndpointUnit::GetPitch() { |
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return 1; |
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} |
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|
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float EndpointUnit::GetResonance() { |
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return 1; |
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} |
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SfzSignalUnitRack::SfzSignalUnitRack(Voice* voice) |
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: SignalUnitRack(MaxUnitCount), pVoice(voice), suEndpoint(this), suVolEG(this), |
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EGs(maxEgCount), volEGs(maxEgCount), pitchEGs(maxEgCount) |
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{ |
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suEndpoint.pVoice = suVolEG.pVoice = voice; |
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|
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for (int i = 0; i < EGs.capacity(); i++) { |
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EGs[i] = new EGv2Unit(this); |
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EGs[i]->pVoice = voice; |
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} |
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} |
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|
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SfzSignalUnitRack::~SfzSignalUnitRack() { |
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for (int i = 0; i < maxEgCount; i++) { |
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delete EGs[i]; EGs[i] = NULL; |
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} |
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} |
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void SfzSignalUnitRack::Trigger() { |
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EGs.clear(); |
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volEGs.clear(); |
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pitchEGs.clear(); |
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::sfz::Region* const pRegion = pVoice->pRegion; |
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for (int i = 0 ; i < pRegion->eg.size() ; i++) { |
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if (pRegion->eg[i].node.size() == 0) continue; |
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|
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if(EGs.size() < EGs.capacity()) { |
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EGv2Unit eg(this); |
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eg.pEGInfo = &(pRegion->eg[i]); |
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EGs.increment()->Copy(eg); |
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} else { std::cerr << "Maximum number of EGs reached!" << std::endl; break; } |
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if (pRegion->eg[i].amplitude > 0) { |
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if(volEGs.size() < volEGs.capacity()) volEGs.add(EGs[EGs.size() - 1]); |
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else std::cerr << "Maximum number of EGs reached!" << std::endl; |
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} |
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} |
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if (pRegion->ampeg_sustain == -1) { |
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if (volEGs.size() > 0) pRegion->ampeg_sustain = 0; |
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else pRegion->ampeg_sustain = 100; |
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} |
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Units.clear(); |
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Units.add(&suVolEG); |
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for (int i = 0 ; i < EGs.size() ; i++) { |
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Units.add(EGs[i]); |
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} |
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Units.add(&suEndpoint); |
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SignalUnitRack::Trigger(); |
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} |
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EndpointSignalUnit* SfzSignalUnitRack::GetEndpointUnit() { |
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return &suEndpoint; |
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} |
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void SfzSignalUnitRack::EnterFadeOutStage() { |
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suVolEG.EG.enterFadeOutStage(); |
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for (int i = 0; i < volEGs.size(); i++) { |
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volEGs[i]->EG.enterFadeOutStage(); |
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} |
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} |
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|
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}} // namespace LinuxSampler::sfz |
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