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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) 2003,2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005-2008 Christian Schoenebeck * |
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* Copyright (C) 2009-2010 Christian Schoenebeck and 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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|
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#include "Engine.h" |
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#include "EngineChannel.h" |
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#include "InstrumentScriptVM.h" |
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|
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namespace LinuxSampler { namespace gig { |
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Engine::Format Engine::GetEngineFormat() { return GIG; } |
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|
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void Engine::CreateInstrumentScriptVM() { |
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dmsg(2,("gig::Engine created Giga format scriptvm\n")); |
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if (pScriptVM) return; |
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pScriptVM = new InstrumentScriptVM; // gig format specific extended script runner |
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} |
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|
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/** |
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* Reacts on supported control change commands (e.g. pitch bend wheel, |
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* modulation wheel, aftertouch). |
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* |
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* @param pEngineChannel - engine channel on which this event occured on |
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* @param itControlChangeEvent - controller, value and time stamp of the event |
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*/ |
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void Engine::ProcessControlChange ( |
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LinuxSampler::EngineChannel* pEngineChannel, |
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Pool<Event>::Iterator& itControlChangeEvent |
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) { |
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dmsg(4,("Engine::ContinuousController cc=%d v=%d\n", itControlChangeEvent->Param.CC.Controller, itControlChangeEvent->Param.CC.Value)); |
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|
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EngineChannel* pChannel = dynamic_cast<EngineChannel*>(pEngineChannel); |
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// handle the "control triggered" MIDI rule: a control change |
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// event can trigger a new note on or note off event |
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if (pChannel->pInstrument) { |
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|
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::gig::MidiRule* rule; |
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for (int i = 0 ; (rule = pChannel->pInstrument->GetMidiRule(i)) ; i++) { |
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|
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if (::gig::MidiRuleCtrlTrigger* ctrlTrigger = |
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dynamic_cast< ::gig::MidiRuleCtrlTrigger*>(rule)) { |
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if (itControlChangeEvent->Param.CC.Controller == |
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ctrlTrigger->ControllerNumber) { |
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|
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uint8_t oldCCValue = pChannel->ControllerTable[ |
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itControlChangeEvent->Param.CC.Controller]; |
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uint8_t newCCValue = itControlChangeEvent->Param.CC.Value; |
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|
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for (int i = 0 ; i < ctrlTrigger->Triggers ; i++) { |
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::gig::MidiRuleCtrlTrigger::trigger_t* pTrigger = |
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&ctrlTrigger->pTriggers[i]; |
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|
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// check if the controller has passed the |
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// trigger point in the right direction |
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if ((pTrigger->Descending && |
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oldCCValue > pTrigger->TriggerPoint && |
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newCCValue <= pTrigger->TriggerPoint) || |
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(!pTrigger->Descending && |
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oldCCValue < pTrigger->TriggerPoint && |
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newCCValue >= pTrigger->TriggerPoint)) { |
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|
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RTList<Event>::Iterator itNewEvent = pGlobalEvents->allocAppend(); |
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if (itNewEvent) { |
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*itNewEvent = *itControlChangeEvent; |
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itNewEvent->Param.Note.Key = pTrigger->Key; |
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|
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if (pTrigger->NoteOff || pTrigger->Velocity == 0) { |
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itNewEvent->Type = Event::type_note_off; |
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itNewEvent->Param.Note.Velocity = 100; |
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|
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ProcessNoteOff(pEngineChannel, itNewEvent); |
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} else { |
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itNewEvent->Type = Event::type_note_on; |
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//TODO: if Velocity is 255, the triggered velocity should |
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// depend on how fast the controller is moving |
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itNewEvent->Param.Note.Velocity = |
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pTrigger->Velocity == 255 ? 100 : |
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pTrigger->Velocity; |
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|
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ProcessNoteOn(pEngineChannel, itNewEvent); |
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} |
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} |
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else dmsg(1,("Event pool emtpy!\n")); |
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} |
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} |
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} |
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} |
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} |
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} |
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|
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// update controller value in the engine channel's controller table |
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pChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; |
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|
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ProcessHardcodedControllers(pEngineChannel, itControlChangeEvent); |
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|
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// handle FX send controllers |
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ProcessFxSendControllers(pChannel, itControlChangeEvent); |
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} |
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|
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void Engine::ProcessChannelPressure(LinuxSampler::EngineChannel* pEngineChannel, Pool<Event>::Iterator& itChannelPressureEvent) { |
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// if required: engine global aftertouch handling (apart from the per voice handling) |
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} |
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|
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void Engine::ProcessPolyphonicKeyPressure(LinuxSampler::EngineChannel* pEngineChannel, Pool<Event>::Iterator& itNotePressureEvent) { |
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// if required: engine global aftertouch handling (apart from the per voice handling) |
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} |
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|
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DiskThread* Engine::CreateDiskThread() { |
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return new DiskThread ( |
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iMaxDiskStreams, |
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((pAudioOutputDevice->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo |
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&instruments |
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); |
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} |
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|
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void Engine::TriggerNewVoices ( |
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LinuxSampler::EngineChannel* pEngineChannel, |
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RTList<Event>::Iterator& itNoteOnEvent, |
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bool HandleKeyGroupConflicts |
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) { |
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EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel); |
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// first, get total amount of required voices (dependant on amount of layers) |
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::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOnEvent->Param.Note.Key); |
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if (!pRegion || RegionSuspended(pRegion)) |
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return; |
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const int voicesRequired = pRegion->Layers; |
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if (voicesRequired <= 0) |
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return; |
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|
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NoteIterator itNote = GetNotePool()->fromID(itNoteOnEvent->Param.Note.ID); |
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if (!itNote) { |
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dmsg(1,("gig::Engine: No Note object for triggering new voices!\n")); |
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return; |
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} |
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|
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// now launch the required amount of voices |
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for (int i = 0; i < voicesRequired; i++) { |
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VoiceIterator itNewVoice = |
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LaunchVoice(pChannel, itNoteOnEvent, i, false, true, HandleKeyGroupConflicts); |
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if (!itNewVoice) continue; |
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itNewVoice.moveToEndOf(itNote->pActiveVoices); |
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} |
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} |
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|
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void Engine::TriggerReleaseVoices ( |
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LinuxSampler::EngineChannel* pEngineChannel, |
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RTList<Event>::Iterator& itNoteOffEvent |
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) { |
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EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel); |
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MidiKey* pKey = &pChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; |
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// first, get total amount of required voices (dependant on amount of layers) |
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::gig::Region* pRegion = pChannel->pInstrument->GetRegion(itNoteOffEvent->Param.Note.Key); |
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if (!pRegion) |
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return; |
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const int voicesRequired = pRegion->Layers; |
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if (voicesRequired <= 0) |
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return; |
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|
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NoteIterator itNote = GetNotePool()->fromID(itNoteOffEvent->Param.Note.ID); |
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if (!itNote) { |
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dmsg(1,("gig::Engine: No Note object for triggering new release voices!\n")); |
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return; |
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} |
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|
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// MIDI note-on velocity is used instead of note-off velocity |
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itNoteOffEvent->Param.Note.Velocity = pKey->Velocity; |
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|
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// now launch the required amount of voices |
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for (int i = 0; i < voicesRequired; i++) { |
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VoiceIterator itNewVoice = |
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LaunchVoice(pChannel, itNoteOffEvent, i, true, false, false); //FIXME: for the moment we don't perform voice stealing for release triggered samples |
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if (!itNewVoice) continue; |
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itNewVoice.moveToEndOf(itNote->pActiveVoices); |
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} |
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} |
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|
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Pool<Voice>::Iterator Engine::LaunchVoice ( |
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LinuxSampler::EngineChannel* pEngineChannel, |
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Pool<Event>::Iterator& itNoteOnEvent, |
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int iLayer, |
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bool ReleaseTriggerVoice, |
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bool VoiceStealing, |
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bool HandleKeyGroupConflicts |
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) { |
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EngineChannel* pChannel = static_cast<EngineChannel*>(pEngineChannel); |
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int MIDIKey = itNoteOnEvent->Param.Note.Key; |
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//EngineChannel::MidiKey* pKey = &pChannel->pMIDIKeyInfo[MIDIKey]; |
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::gig::Region* pRegion = pChannel->pInstrument->GetRegion(MIDIKey); |
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|
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// if nothing defined for this key |
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if (!pRegion) return Pool<Voice>::Iterator(); // nothing to do |
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|
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int iKeyGroup = pRegion->KeyGroup; |
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// only need to send a group event from the first voice in a layered region, |
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// as all layers in a region always belongs to the same key group |
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if (HandleKeyGroupConflicts && iLayer == 0) pChannel->HandleKeyGroupConflicts(iKeyGroup, itNoteOnEvent); |
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|
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Voice::type_t VoiceType = Voice::type_normal; |
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|
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// get current dimension values to select the right dimension region |
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//TODO: for stolen voices this dimension region selection block is processed twice, this should be changed |
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//FIXME: controller values for selecting the dimension region here are currently not sample accurate |
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uint DimValues[8] = { 0 }; |
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for (int i = pRegion->Dimensions - 1; i >= 0; i--) { |
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switch (pRegion->pDimensionDefinitions[i].dimension) { |
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case ::gig::dimension_samplechannel: |
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DimValues[i] = 0; //TODO: we currently ignore this dimension |
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break; |
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case ::gig::dimension_layer: |
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DimValues[i] = iLayer; |
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break; |
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case ::gig::dimension_velocity: |
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DimValues[i] = itNoteOnEvent->Param.Note.Velocity; |
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break; |
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case ::gig::dimension_channelaftertouch: |
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DimValues[i] = pChannel->ControllerTable[128]; |
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break; |
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case ::gig::dimension_releasetrigger: |
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VoiceType = (ReleaseTriggerVoice) ? Voice::type_release_trigger : (!iLayer) ? Voice::type_release_trigger_required : Voice::type_normal; |
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DimValues[i] = (uint) ReleaseTriggerVoice; |
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break; |
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case ::gig::dimension_keyboard: |
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DimValues[i] = (uint) (pChannel->CurrentKeyDimension * pRegion->pDimensionDefinitions[i].zones); |
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break; |
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case ::gig::dimension_roundrobin: |
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DimValues[i] = uint(*pChannel->pMIDIKeyInfo[MIDIKey].pRoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on in this Region |
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break; |
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case ::gig::dimension_roundrobinkeyboard: |
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DimValues[i] = uint(pChannel->RoundRobinIndex % pRegion->pDimensionDefinitions[i].zones); // RoundRobinIndex is incremented for each note on |
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break; |
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case ::gig::dimension_random: |
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DimValues[i] = uint(Random() * pRegion->pDimensionDefinitions[i].zones); |
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break; |
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case ::gig::dimension_smartmidi: |
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DimValues[i] = 0; |
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break; |
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case ::gig::dimension_modwheel: |
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DimValues[i] = pChannel->ControllerTable[1]; |
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break; |
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case ::gig::dimension_breath: |
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DimValues[i] = pChannel->ControllerTable[2]; |
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break; |
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case ::gig::dimension_foot: |
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DimValues[i] = pChannel->ControllerTable[4]; |
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break; |
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case ::gig::dimension_portamentotime: |
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DimValues[i] = pChannel->ControllerTable[5]; |
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break; |
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case ::gig::dimension_effect1: |
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DimValues[i] = pChannel->ControllerTable[12]; |
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break; |
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case ::gig::dimension_effect2: |
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DimValues[i] = pChannel->ControllerTable[13]; |
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break; |
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case ::gig::dimension_genpurpose1: |
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DimValues[i] = pChannel->ControllerTable[16]; |
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break; |
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case ::gig::dimension_genpurpose2: |
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DimValues[i] = pChannel->ControllerTable[17]; |
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break; |
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case ::gig::dimension_genpurpose3: |
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DimValues[i] = pChannel->ControllerTable[18]; |
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break; |
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case ::gig::dimension_genpurpose4: |
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DimValues[i] = pChannel->ControllerTable[19]; |
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break; |
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case ::gig::dimension_sustainpedal: |
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DimValues[i] = pChannel->ControllerTable[64]; |
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break; |
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case ::gig::dimension_portamento: |
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DimValues[i] = pChannel->ControllerTable[65]; |
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break; |
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case ::gig::dimension_sostenutopedal: |
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DimValues[i] = pChannel->ControllerTable[66]; |
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break; |
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case ::gig::dimension_softpedal: |
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DimValues[i] = pChannel->ControllerTable[67]; |
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break; |
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case ::gig::dimension_genpurpose5: |
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DimValues[i] = pChannel->ControllerTable[80]; |
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break; |
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case ::gig::dimension_genpurpose6: |
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DimValues[i] = pChannel->ControllerTable[81]; |
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break; |
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case ::gig::dimension_genpurpose7: |
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DimValues[i] = pChannel->ControllerTable[82]; |
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break; |
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case ::gig::dimension_genpurpose8: |
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DimValues[i] = pChannel->ControllerTable[83]; |
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break; |
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case ::gig::dimension_effect1depth: |
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DimValues[i] = pChannel->ControllerTable[91]; |
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break; |
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case ::gig::dimension_effect2depth: |
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DimValues[i] = pChannel->ControllerTable[92]; |
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break; |
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case ::gig::dimension_effect3depth: |
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DimValues[i] = pChannel->ControllerTable[93]; |
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break; |
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case ::gig::dimension_effect4depth: |
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DimValues[i] = pChannel->ControllerTable[94]; |
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break; |
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case ::gig::dimension_effect5depth: |
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DimValues[i] = pChannel->ControllerTable[95]; |
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break; |
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case ::gig::dimension_none: |
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std::cerr << "gig::Engine::LaunchVoice() Error: dimension=none\n" << std::flush; |
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break; |
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default: |
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std::cerr << "gig::Engine::LaunchVoice() Error: Unknown dimension\n" << std::flush; |
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} |
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} |
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|
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// return if this is a release triggered voice and there is no |
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// releasetrigger dimension (could happen if an instrument |
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// change has occured between note on and off) |
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if (ReleaseTriggerVoice && !(VoiceType & Voice::type_release_trigger)) return Pool<Voice>::Iterator(); |
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|
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NoteIterator itNote = GetNotePool()->fromID(itNoteOnEvent->Param.Note.ID); |
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|
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::gig::DimensionRegion* pDimRgn; |
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if (!itNote->Format.Gig.DimMask) { // normal case ... |
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pDimRgn = pRegion->GetDimensionRegionByValue(DimValues); |
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} else { // some dimension zones were overridden (i.e. by instrument script) ... |
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dmsg(3,("trigger with dim mask=%d val=%d\n", itNote->Format.Gig.DimMask, itNote->Format.Gig.DimBits)); |
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int index = pRegion->GetDimensionRegionIndexByValue(DimValues); |
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index &= ~itNote->Format.Gig.DimMask; |
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index |= itNote->Format.Gig.DimBits & itNote->Format.Gig.DimMask; |
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pDimRgn = pRegion->pDimensionRegions[index & 255]; |
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} |
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if (!pDimRgn) return Pool<Voice>::Iterator(); // error (could not resolve dimension region) |
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|
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// no need to continue if sample is silent |
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if (!pDimRgn->pSample || !pDimRgn->pSample->SamplesTotal) return Pool<Voice>::Iterator(); |
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|
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// allocate a new voice for the key |
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Pool<Voice>::Iterator itNewVoice = GetVoicePool()->allocAppend(); |
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|
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int res = InitNewVoice ( |
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pChannel, pDimRgn, itNoteOnEvent, VoiceType, iLayer, |
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iKeyGroup, ReleaseTriggerVoice, VoiceStealing, itNewVoice |
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); |
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if (!res) return itNewVoice; |
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|
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return Pool<Voice>::Iterator(); // no free voice or error |
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} |
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|
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bool Engine::DiskStreamSupported() { |
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return true; |
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} |
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|
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String Engine::Description() { |
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return "GigaSampler Format Engine"; |
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} |
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|
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String Engine::Version() { |
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String s = "$Revision$"; |
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return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
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} |
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|
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}} // namespace LinuxSampler::gig |
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