--- linuxsampler/trunk/src/engines/gig/Engine.cpp 2005/09/21 19:05:41 776 +++ linuxsampler/trunk/src/engines/gig/Engine.cpp 2006/01/28 16:55:30 831 @@ -3,7 +3,7 @@ * LinuxSampler - modular, streaming capable sampler * * * * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * - * Copyright (C) 2005 Christian Schoenebeck * + * Copyright (C) 2005, 2006 Christian Schoenebeck * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * @@ -600,6 +600,35 @@ #endif const int key = itNoteOnEvent->Param.Note.Key; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; + + // move note on event to the key's own event list + RTList::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); + + // if Solo Mode then kill all already active voices + if (pEngineChannel->SoloMode) { + Pool::Iterator itYoungestKey = pEngineChannel->pActiveKeys->last(); + if (itYoungestKey) { + const int iYoungestKey = *itYoungestKey; + const midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[iYoungestKey]; + if (pOtherKey->Active) { + // get final portamento position of currently active voice + if (pEngineChannel->PortamentoMode) { + RTList::Iterator itVoice = pOtherKey->pActiveVoices->last(); + if (itVoice) itVoice->UpdatePortamentoPos(itNoteOnEventOnKeyList); + } + // kill all voices on the (other) key + RTList::Iterator itVoiceToBeKilled = pOtherKey->pActiveVoices->first(); + RTList::Iterator end = pOtherKey->pActiveVoices->end(); + for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { + if (itVoiceToBeKilled->Type != Voice::type_release_trigger) + itVoiceToBeKilled->Kill(itNoteOnEventOnKeyList); + } + } + } + // set this key as 'currently active solo key' + pEngineChannel->SoloKey = key; + } // Change key dimension value if key is in keyswitching area { @@ -609,25 +638,20 @@ (pInstrument->DimensionKeyRange.high - pInstrument->DimensionKeyRange.low + 1); } - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[key]; - pKey->KeyPressed = true; // the MIDI key was now pressed down - pKey->Velocity = itNoteOnEvent->Param.Note.Velocity; - pKey->NoteOnTime = FrameTime + itNoteOnEvent->FragmentPos(); // will be used to calculate note length + pKey->Velocity = itNoteOnEventOnKeyList->Param.Note.Velocity; + pKey->NoteOnTime = FrameTime + itNoteOnEventOnKeyList->FragmentPos(); // will be used to calculate note length // cancel release process of voices on this key if needed if (pKey->Active && !pEngineChannel->SustainPedal) { RTList::Iterator itCancelReleaseEvent = pKey->pEvents->allocAppend(); if (itCancelReleaseEvent) { - *itCancelReleaseEvent = *itNoteOnEvent; // copy event + *itCancelReleaseEvent = *itNoteOnEventOnKeyList; // copy event itCancelReleaseEvent->Type = Event::type_cancel_release; // transform event type } else dmsg(1,("Event pool emtpy!\n")); } - // move note on event to the key's own event list - RTList::Iterator itNoteOnEventOnKeyList = itNoteOnEvent.moveToEndOf(pKey->pEvents); - // allocate and trigger new voice(s) for the key { // first, get total amount of required voices (dependant on amount of layers) @@ -644,6 +668,7 @@ if (!pKey->Active && !pKey->VoiceTheftsQueued) pKey->pEvents->free(itNoteOnEventOnKeyList); + if (!pEngineChannel->SoloMode || pEngineChannel->PortamentoPos < 0.0f) pEngineChannel->PortamentoPos = (float) key; pKey->RoundRobinIndex++; } @@ -661,15 +686,77 @@ if (pEngineChannel->GetMute()) return; // skip if sampler channel is muted #endif - midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[itNoteOffEvent->Param.Note.Key]; + const int iKey = itNoteOffEvent->Param.Note.Key; + midi_key_info_t* pKey = &pEngineChannel->pMIDIKeyInfo[iKey]; pKey->KeyPressed = false; // the MIDI key was now released - // release voices on this key if needed - if (pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEvent->Param.Note.Key)) { - itNoteOffEvent->Type = Event::type_release; // transform event type + // move event to the key's own event list + RTList::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); + + bool bShouldRelease = pKey->Active && ShouldReleaseVoice(pEngineChannel, itNoteOffEventOnKeyList->Param.Note.Key); + + // in case Solo Mode is enabled, kill all voices on this key and respawn a voice on the highest pressed key (if any) + if (pEngineChannel->SoloMode) { //TODO: this feels like too much code just for handling solo mode :P + bool bOtherKeysPressed = false; + if (iKey == pEngineChannel->SoloKey) { + pEngineChannel->SoloKey = -1; + // if there's still a key pressed down, respawn a voice (group) on the highest key + for (int i = 127; i > 0; i--) { + midi_key_info_t* pOtherKey = &pEngineChannel->pMIDIKeyInfo[i]; + if (pOtherKey->KeyPressed) { + bOtherKeysPressed = true; + // make the other key the new 'currently active solo key' + pEngineChannel->SoloKey = i; + // get final portamento position of currently active voice + if (pEngineChannel->PortamentoMode) { + RTList::Iterator itVoice = pKey->pActiveVoices->first(); + if (itVoice) itVoice->UpdatePortamentoPos(itNoteOffEventOnKeyList); + } + // create a pseudo note on event + RTList::Iterator itPseudoNoteOnEvent = pOtherKey->pEvents->allocAppend(); + if (itPseudoNoteOnEvent) { + // copy event + *itPseudoNoteOnEvent = *itNoteOffEventOnKeyList; + // transform event to a note on event + itPseudoNoteOnEvent->Type = Event::type_note_on; + itPseudoNoteOnEvent->Param.Note.Key = i; + itPseudoNoteOnEvent->Param.Note.Velocity = pOtherKey->Velocity; + // allocate and trigger new voice(s) for the other key + { + // first, get total amount of required voices (dependant on amount of layers) + ::gig::Region* pRegion = pEngineChannel->pInstrument->GetRegion(i); + if (pRegion) { + int voicesRequired = pRegion->Layers; + // now launch the required amount of voices + for (int iLayer = 0; iLayer < voicesRequired; iLayer++) + LaunchVoice(pEngineChannel, itPseudoNoteOnEvent, iLayer, false, true, false); + } + } + // if neither a voice was spawned or postponed then remove note on event from key again + if (!pOtherKey->Active && !pOtherKey->VoiceTheftsQueued) + pOtherKey->pEvents->free(itPseudoNoteOnEvent); + + } else dmsg(1,("Could not respawn voice, no free event left\n")); + break; // done + } + } + } + if (bOtherKeysPressed) { + if (pKey->Active) { // kill all voices on this key + bShouldRelease = false; // no need to release, as we kill it here + RTList::Iterator itVoiceToBeKilled = pKey->pActiveVoices->first(); + RTList::Iterator end = pKey->pActiveVoices->end(); + for (; itVoiceToBeKilled != end; ++itVoiceToBeKilled) { + if (itVoiceToBeKilled->Type != Voice::type_release_trigger) + itVoiceToBeKilled->Kill(itNoteOffEventOnKeyList); + } + } + } else pEngineChannel->PortamentoPos = -1.0f; + } - // move event to the key's own event list - RTList::Iterator itNoteOffEventOnKeyList = itNoteOffEvent.moveToEndOf(pKey->pEvents); + // if no solo mode (the usual case) or if solo mode and no other key pressed, then release voices on this key if needed + if (bShouldRelease) { + itNoteOffEventOnKeyList->Type = Event::type_release; // transform event type // spawn release triggered voice(s) if needed if (pKey->ReleaseTrigger) { @@ -687,11 +774,11 @@ } pKey->ReleaseTrigger = false; } - - // if neither a voice was spawned or postponed then remove note off event from key again - if (!pKey->Active && !pKey->VoiceTheftsQueued) - pKey->pEvents->free(itNoteOffEventOnKeyList); } + + // if neither a voice was spawned or postponed on this key then remove note off event from key again + if (!pKey->Active && !pKey->VoiceTheftsQueued) + pKey->pEvents->free(itNoteOffEventOnKeyList); } /** @@ -1141,17 +1228,20 @@ pEngineChannel->ControllerTable[itControlChangeEvent->Param.CC.Controller] = itControlChangeEvent->Param.CC.Value; switch (itControlChangeEvent->Param.CC.Controller) { + case 5: { // portamento time + pEngineChannel->PortamentoTime = (float) itControlChangeEvent->Param.CC.Value / 127.0f * (float) CONFIG_PORTAMENTO_TIME_MAX + (float) CONFIG_PORTAMENTO_TIME_MIN; + break; + } case 7: { // volume //TODO: not sample accurate yet - pEngineChannel->GlobalVolume = (float) itControlChangeEvent->Param.CC.Value / 127.0f; + pEngineChannel->GlobalVolume = VolumeCurve[itControlChangeEvent->Param.CC.Value] * CONFIG_GLOBAL_ATTENUATION; pEngineChannel->bStatusChanged = true; // engine channel status has changed, so set notify flag break; } case 10: { // panpot //TODO: not sample accurate yet - const int pan = (int) itControlChangeEvent->Param.CC.Value - 64; - pEngineChannel->GlobalPanLeft = 1.0f - float(RTMath::Max(pan, 0)) / 63.0f; - pEngineChannel->GlobalPanRight = 1.0f - float(RTMath::Min(pan, 0)) / -64.0f; + pEngineChannel->GlobalPanLeft = PanCurve[128 - itControlChangeEvent->Param.CC.Value]; + pEngineChannel->GlobalPanRight = PanCurve[itControlChangeEvent->Param.CC.Value]; break; } case 64: { // sustain @@ -1201,6 +1291,11 @@ } break; } + case 65: { // portamento on / off + KillAllVoices(pEngineChannel, itControlChangeEvent); + pEngineChannel->PortamentoMode = itControlChangeEvent->Param.CC.Value >= 64; + break; + } case 66: { // sostenuto if (itControlChangeEvent->Param.CC.Value >= 64 && !pEngineChannel->SostenutoPedal) { dmsg(4,("SOSTENUTO (CENTER) PEDAL DOWN\n")); @@ -1257,6 +1352,16 @@ ReleaseAllVoices(pEngineChannel, itControlChangeEvent); break; } + case 126: { // mono mode on + KillAllVoices(pEngineChannel, itControlChangeEvent); + pEngineChannel->SoloMode = true; + break; + } + case 127: { // poly mode on + KillAllVoices(pEngineChannel, itControlChangeEvent); + pEngineChannel->SoloMode = false; + break; + } } } @@ -1452,8 +1557,41 @@ } String Engine::Version() { - String s = "$Revision: 1.55 $"; + String s = "$Revision: 1.58 $"; return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword } + // static constant initializers + const float* Engine::VolumeCurve(InitVolumeCurve()); + const float* Engine::PanCurve(InitPanCurve()); + + float* Engine::InitVolumeCurve() { + // line-segment approximation + const float segments[] = { + 0, 0, 2, 0.0046, 16, 0.016, 31, 0.051, 45, 0.115, 54.5, 0.2, + 64.5, 0.39, 74, 0.74, 92, 1.03, 114, 1.94, 119.2, 2.2, 127, 2.2 + }; + return InitCurve(segments); + } + + float* Engine::InitPanCurve() { + // line-segment approximation + const float segments[] = { + 0, 0, 1, 0, + 2, 0.05, 31.5, 0.7, 51, 0.851, 74.5, 1.12, + 127, 1.41, 128, 1.41 + }; + return InitCurve(segments, 129); + } + + float* Engine::InitCurve(const float* segments, int size) { + float* y = new float[size]; + for (int x = 0 ; x < size ; x++) { + if (x > segments[2]) segments += 2; + y[x] = segments[1] + (x - segments[0]) * + (segments[3] - segments[1]) / (segments[2] - segments[0]); + } + return y; + } + }} // namespace LinuxSampler::gig