--- linuxsampler/trunk/src/engines/common/InstrumentScriptVMFunctions.cpp 2014/06/06 12:38:54 2598 +++ linuxsampler/trunk/src/engines/common/InstrumentScriptVMFunctions.cpp 2016/07/11 17:10:40 2938 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014 Christian Schoenebeck + * Copyright (c) 2014-2016 Christian Schoenebeck * * http://www.linuxsampler.org * @@ -12,6 +12,8 @@ #include "../AbstractEngineChannel.h" namespace LinuxSampler { + + // play_note() function InstrumentScriptVMFunction_play_note::InstrumentScriptVMFunction_play_note(InstrumentScriptVM* parent) : m_vm(parent) @@ -22,85 +24,769 @@ int note = args->arg(0)->asInt()->evalInt(); int velocity = (args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : 127; int sampleoffset = (args->argsCount() >= 3) ? args->arg(2)->asInt()->evalInt() : 0; - int duration = (args->argsCount() >= 4) ? args->arg(3)->asInt()->evalInt() : 0; //TODO: once -1 is implemented, it might be a better default value instead of 0 + int duration = (args->argsCount() >= 4) ? args->arg(3)->asInt()->evalInt() : 0; //TODO: -1 might be a better default value instead of 0 if (note < 0 || note > 127) { errMsg("play_note(): argument 1 is an invalid note number"); - return errorResult(-1); + return errorResult(0); } if (velocity < 0 || velocity > 127) { errMsg("play_note(): argument 2 is an invalid velocity value"); - return errorResult(-1); + return errorResult(0); } if (sampleoffset < 0) { errMsg("play_note(): argument 3 may not be a negative sample offset"); - return errorResult(-1); + return errorResult(0); } else if (sampleoffset != 0) { wrnMsg("play_note(): argument 3 does not support a sample offset other than 0 yet"); } if (duration < -1) { errMsg("play_note(): argument 4 must be a duration value of at least -1 or higher"); - return errorResult(-1); - } else if (duration == -1) { - wrnMsg("play_note(): argument 4 does not support special value -1 as duration yet"); - } else if (duration != 0) { - wrnMsg("play_note(): argument 4 does not support any other value as 0 as duration yet"); + return errorResult(0); } AbstractEngineChannel* pEngineChannel = static_cast(m_vm->m_event->cause.pEngineChannel); - Event e = m_vm->m_event->cause; - e.Type = Event::type_note_on; + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_play_note; e.Param.Note.Key = note; e.Param.Note.Velocity = velocity; + // make this new note dependent to the life time of the original note + if (duration == -1) { + if (m_vm->currentVMEventHandler()->eventHandlerType() != VM_EVENT_HANDLER_NOTE) { + errMsg("play_note(): -1 for argument 4 may only be used for note event handlers"); + return errorResult(0); + } + e.Param.Note.ParentNoteID = m_vm->m_event->cause.Param.Note.ID; + } + + const note_id_t id = pEngineChannel->ScheduleNoteMicroSec(&e, 0); - int id = pEngineChannel->ScheduleEvent(&e, duration); + // if a duration is supplied (and play-note event was scheduled + // successfully above), then schedule a subsequent stop-note event + if (id && duration > 0) { + e.Type = Event::type_stop_note; + e.Param.Note.ID = id; + e.Param.Note.Velocity = 127; + pEngineChannel->ScheduleEventMicroSec(&e, duration); + } - return successResult(id); + // even if id is null, don't return an errorResult() here, because that + // would abort the script, and under heavy load it may be considerable + // that ScheduleNoteMicroSec() fails above, so simply ignore that + return successResult( ScriptID::fromNoteID(id) ); } + // set_controller() function + + InstrumentScriptVMFunction_set_controller::InstrumentScriptVMFunction_set_controller(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + VMFnResult* InstrumentScriptVMFunction_set_controller::exec(VMFnArgs* args) { + int controller = args->arg(0)->asInt()->evalInt(); + int value = args->arg(1)->asInt()->evalInt(); + + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + if (controller == CTRL_TABLE_IDX_AFTERTOUCH) { + e.Type = Event::type_channel_pressure; + e.Param.ChannelPressure.Value = value & 127; + } else if (controller == CTRL_TABLE_IDX_PITCHBEND) { + e.Type = Event::type_pitchbend; + e.Param.Pitch.Pitch = value; + } else if (controller >= 0 && controller <= 127) { + e.Type = Event::type_control_change; + e.Param.CC.Controller = controller; + e.Param.CC.Value = value; + } else { + errMsg("set_controller(): argument 1 is an invalid controller"); + return errorResult(); + } + + const event_id_t id = pEngineChannel->ScheduleEventMicroSec(&e, 0); + + // even if id is null, don't return an errorResult() here, because that + // would abort the script, and under heavy load it may be considerable + // that ScheduleEventMicroSec() fails above, so simply ignore that + return successResult( ScriptID::fromEventID(id) ); + } + + // ignore_event() function + InstrumentScriptVMFunction_ignore_event::InstrumentScriptVMFunction_ignore_event(InstrumentScriptVM* parent) : m_vm(parent) { } + bool InstrumentScriptVMFunction_ignore_event::acceptsArgType(int iArg, ExprType_t type) const { + return type == INT_EXPR || type == INT_ARR_EXPR; + } + VMFnResult* InstrumentScriptVMFunction_ignore_event::exec(VMFnArgs* args) { - int id = args->arg(0)->asInt()->evalInt(); - if (id < 0) { - wrnMsg("ignore_event(): argument may not be a negative event ID"); + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + if (args->arg(0)->exprType() == INT_EXPR) { + const ScriptID id = args->arg(0)->asInt()->evalInt(); + if (!id) { + wrnMsg("ignore_event(): event ID argument may not be zero"); + // not errorResult(), because that would abort the script, not intentional in this case + return successResult(); + } + pEngineChannel->IgnoreEventByScriptID(id); + } else if (args->arg(0)->exprType() == INT_ARR_EXPR) { + VMIntArrayExpr* ids = args->arg(0)->asIntArray(); + for (int i = 0; i < ids->arraySize(); ++i) { + const ScriptID id = ids->evalIntElement(i); + pEngineChannel->IgnoreEventByScriptID(id); + } + } + + return successResult(); + } + + // ignore_controller() function + + InstrumentScriptVMFunction_ignore_controller::InstrumentScriptVMFunction_ignore_controller(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + VMFnResult* InstrumentScriptVMFunction_ignore_controller::exec(VMFnArgs* args) { + const ScriptID id = (args->argsCount() >= 1) ? args->arg(0)->asInt()->evalInt() : m_vm->m_event->id; + if (!id && args->argsCount() >= 1) { + wrnMsg("ignore_controller(): event ID argument may not be zero"); return successResult(); } AbstractEngineChannel* pEngineChannel = static_cast(m_vm->m_event->cause.pEngineChannel); - pEngineChannel->IgnoreEvent(id); + pEngineChannel->IgnoreEventByScriptID(id); return successResult(); } - InstrumentScriptVMFunction_ignore_controller::InstrumentScriptVMFunction_ignore_controller(InstrumentScriptVM* parent) + // note_off() function + + InstrumentScriptVMFunction_note_off::InstrumentScriptVMFunction_note_off(InstrumentScriptVM* parent) : m_vm(parent) { } - VMFnResult* InstrumentScriptVMFunction_ignore_controller::exec(VMFnArgs* args) { - int id = (args->argsCount() >= 1) ? args->arg(0)->asInt()->evalInt() : m_vm->m_event->id; - if (id < 0) { - wrnMsg("ignore_controller(): argument may not be a negative event ID"); - return successResult(); + bool InstrumentScriptVMFunction_note_off::acceptsArgType(int iArg, ExprType_t type) const { + return type == INT_EXPR || type == INT_ARR_EXPR; + } + + VMFnResult* InstrumentScriptVMFunction_note_off::exec(VMFnArgs* args) { + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + int velocity = (args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : 127; + if (velocity < 0 || velocity > 127) { + errMsg("note_off(): argument 2 is an invalid velocity value"); + return errorResult(); + } + + if (args->arg(0)->exprType() == INT_EXPR) { + const ScriptID id = args->arg(0)->asInt()->evalInt(); + if (!id) { + wrnMsg("note_off(): note ID for argument 1 may not be zero"); + return successResult(); + } + if (!id.isNoteID()) { + wrnMsg("note_off(): argument 1 is not a note ID"); + return successResult(); + } + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) return successResult(); + + Event e = pNote->cause; + e.Init(); // clear IDs + e.CopyTimeFrom(m_vm->m_event->cause); // set fragment time for "now" + e.Type = Event::type_stop_note; + e.Param.Note.ID = id.noteID(); + e.Param.Note.Key = pNote->hostKey; + e.Param.Note.Velocity = velocity; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } else if (args->arg(0)->exprType() == INT_ARR_EXPR) { + VMIntArrayExpr* ids = args->arg(0)->asIntArray(); + for (int i = 0; i < ids->arraySize(); ++i) { + const ScriptID id = ids->evalIntElement(i); + if (!id || !id.isNoteID()) continue; + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) continue; + + Event e = pNote->cause; + e.Init(); // clear IDs + e.CopyTimeFrom(m_vm->m_event->cause); // set fragment time for "now" + e.Type = Event::type_stop_note; + e.Param.Note.ID = id.noteID(); + e.Param.Note.Key = pNote->hostKey; + e.Param.Note.Velocity = velocity; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } + } + + return successResult(); + } + + // set_event_mark() function + + InstrumentScriptVMFunction_set_event_mark::InstrumentScriptVMFunction_set_event_mark(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + VMFnResult* InstrumentScriptVMFunction_set_event_mark::exec(VMFnArgs* args) { + const ScriptID id = args->arg(0)->asInt()->evalInt(); + const int groupID = args->arg(1)->asInt()->evalInt(); + + if (groupID < 0 || groupID >= INSTR_SCRIPT_EVENT_GROUPS) { + errMsg("set_event_mark(): argument 2 is an invalid group id"); + return errorResult(); + } + + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + // check if the event/note still exists + switch (id.type()) { + case ScriptID::EVENT: { + RTList::Iterator itEvent = pEngineChannel->pEngine->EventByID( id.eventID() ); + if (!itEvent) return successResult(); + break; + } + case ScriptID::NOTE: { + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) return successResult(); + break; + } + } + + pEngineChannel->pScript->eventGroups[groupID].insert(id); + + return successResult(); + } + + // delete_event_mark() function + + InstrumentScriptVMFunction_delete_event_mark::InstrumentScriptVMFunction_delete_event_mark(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + VMFnResult* InstrumentScriptVMFunction_delete_event_mark::exec(VMFnArgs* args) { + const ScriptID id = args->arg(0)->asInt()->evalInt(); + const int groupID = args->arg(1)->asInt()->evalInt(); + + if (groupID < 0 || groupID >= INSTR_SCRIPT_EVENT_GROUPS) { + errMsg("delete_event_mark(): argument 2 is an invalid group id"); + return errorResult(); + } + + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + pEngineChannel->pScript->eventGroups[groupID].erase(id); + + return successResult(); + } + + // by_marks() function + + InstrumentScriptVMFunction_by_marks::InstrumentScriptVMFunction_by_marks(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + int InstrumentScriptVMFunction_by_marks::Result::arraySize() const { + return eventGroup->size(); + } + + int InstrumentScriptVMFunction_by_marks::Result::evalIntElement(uint i) { + return (*eventGroup)[i]; + } + + VMFnResult* InstrumentScriptVMFunction_by_marks::errorResult() { + m_result.eventGroup = NULL; + m_result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED); + return &m_result; + } + + VMFnResult* InstrumentScriptVMFunction_by_marks::successResult(EventGroup* eventGroup) { + m_result.eventGroup = eventGroup; + m_result.flags = STMT_SUCCESS; + return &m_result; + } + + VMFnResult* InstrumentScriptVMFunction_by_marks::exec(VMFnArgs* args) { + int groupID = args->arg(0)->asInt()->evalInt(); + + if (groupID < 0 || groupID >= INSTR_SCRIPT_EVENT_GROUPS) { + errMsg("by_marks(): argument is an invalid group id"); + return errorResult(); + } + + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + return successResult( &pEngineChannel->pScript->eventGroups[groupID] ); + } + + // change_vol() function + + InstrumentScriptVMFunction_change_vol::InstrumentScriptVMFunction_change_vol(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + bool InstrumentScriptVMFunction_change_vol::acceptsArgType(int iArg, ExprType_t type) const { + if (iArg == 0) + return type == INT_EXPR || type == INT_ARR_EXPR; + else + return INT_EXPR; + } + + VMFnResult* InstrumentScriptVMFunction_change_vol::exec(VMFnArgs* args) { + int volume = args->arg(1)->asInt()->evalInt(); // volume change in milli dB + bool relative = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : false; + + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + if (args->arg(0)->exprType() == INT_EXPR) { + const ScriptID id = args->arg(0)->asInt()->evalInt(); + if (!id) { + wrnMsg("change_vol(): note ID for argument 1 may not be zero"); + return successResult(); + } + if (!id.isNoteID()) { + wrnMsg("change_vol(): argument 1 is not a note ID"); + return successResult(); + } + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) return successResult(); + + const float fVolumeLin = RTMath::DecibelToLinRatio(float(volume) / 1000.f); + // commented out, performed by EngineBase::ProcessNoteSynthParam() for time accuracy behavior + /*if (relative) + pNote->Override.Volume *= fVolumeLin; + else + pNote->Override.Volume = fVolumeLin;*/ + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_volume; + e.Param.NoteSynthParam.Delta = fVolumeLin; + e.Param.NoteSynthParam.Relative = relative; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } else if (args->arg(0)->exprType() == INT_ARR_EXPR) { + VMIntArrayExpr* ids = args->arg(0)->asIntArray(); + for (int i = 0; i < ids->arraySize(); ++i) { + const ScriptID id = ids->evalIntElement(i); + if (!id || !id.isNoteID()) continue; + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) continue; + + const float fVolumeLin = RTMath::DecibelToLinRatio(float(volume) / 1000.f); + // commented out, performed by EngineBase::ProcessNoteSynthParam() for time accuracy behavior + /*if (relative) + pNote->Override.Volume *= fVolumeLin; + else + pNote->Override.Volume = fVolumeLin;*/ + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_volume; + e.Param.NoteSynthParam.Delta = fVolumeLin; + e.Param.NoteSynthParam.Relative = relative; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } + } + + return successResult(); + } + + // change_tune() function + + InstrumentScriptVMFunction_change_tune::InstrumentScriptVMFunction_change_tune(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + bool InstrumentScriptVMFunction_change_tune::acceptsArgType(int iArg, ExprType_t type) const { + if (iArg == 0) + return type == INT_EXPR || type == INT_ARR_EXPR; + else + return INT_EXPR; + } + + VMFnResult* InstrumentScriptVMFunction_change_tune::exec(VMFnArgs* args) { + int tune = args->arg(1)->asInt()->evalInt(); // tuning change in milli cents + bool relative = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : false; + + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + if (args->arg(0)->exprType() == INT_EXPR) { + const ScriptID id = args->arg(0)->asInt()->evalInt(); + if (!id) { + wrnMsg("change_tune(): note ID for argument 1 may not be zero"); + return successResult(); + } + if (!id.isNoteID()) { + wrnMsg("change_tune(): argument 1 is not a note ID"); + return successResult(); + } + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) return successResult(); + + const float fFreqRatio = RTMath::CentsToFreqRatioUnlimited(float(tune) / 1000.f); + // commented out, performed by EngineBase::ProcessNoteSynthParam() for time accuracy behavior + /*if (relative) + pNote->Override.Pitch *= fFreqRatio; + else + pNote->Override.Pitch = fFreqRatio;*/ + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_pitch; + e.Param.NoteSynthParam.Delta = fFreqRatio; + e.Param.NoteSynthParam.Relative = relative; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } else if (args->arg(0)->exprType() == INT_ARR_EXPR) { + VMIntArrayExpr* ids = args->arg(0)->asIntArray(); + for (int i = 0; i < ids->arraySize(); ++i) { + const ScriptID id = ids->evalIntElement(i); + if (!id || !id.isNoteID()) continue; + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) continue; + + const float fFreqRatio = RTMath::CentsToFreqRatioUnlimited(float(tune) / 1000.f); + // commented out, performed by EngineBase::ProcessNoteSynthParam() for time accuracy behavior + /*if (relative) + pNote->Override.Pitch *= fFreqRatio; + else + pNote->Override.Pitch = fFreqRatio;*/ + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_pitch; + e.Param.NoteSynthParam.Delta = fFreqRatio; + e.Param.NoteSynthParam.Relative = relative; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } + } + + return successResult(); + } + + // change_pan() function + + InstrumentScriptVMFunction_change_pan::InstrumentScriptVMFunction_change_pan(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + bool InstrumentScriptVMFunction_change_pan::acceptsArgType(int iArg, ExprType_t type) const { + if (iArg == 0) + return type == INT_EXPR || type == INT_ARR_EXPR; + else + return INT_EXPR; + } + + VMFnResult* InstrumentScriptVMFunction_change_pan::exec(VMFnArgs* args) { + int pan = args->arg(1)->asInt()->evalInt(); + bool relative = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : false; + + if (pan > 1000) { + wrnMsg("change_pan(): argument 2 may not be larger than 1000"); + pan = 1000; + } else if (pan < -1000) { + wrnMsg("change_pan(): argument 2 may not be smaller than -1000"); + pan = -1000; + } + + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + if (args->arg(0)->exprType() == INT_EXPR) { + const ScriptID id = args->arg(0)->asInt()->evalInt(); + if (!id) { + wrnMsg("change_pan(): note ID for argument 1 may not be zero"); + return successResult(); + } + if (!id.isNoteID()) { + wrnMsg("change_pan(): argument 1 is not a note ID"); + return successResult(); + } + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) return successResult(); + + const float fPan = float(pan) / 1000.f; + // commented out, performed by EngineBase::ProcessNoteSynthParam() for time accuracy behavior + /*if (relative) { + pNote->Override.Pan = RTMath::RelativeSummedAvg(pNote->Override.Pan, fPan, ++pNote->Override.PanSources); + } else { + pNote->Override.Pan = fPan; + pNote->Override.PanSources = 1; // only relevant on subsequent change_pan() calls on same note with 'relative' being set + }*/ + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_pan; + e.Param.NoteSynthParam.Delta = fPan; + e.Param.NoteSynthParam.Relative = relative; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } else if (args->arg(0)->exprType() == INT_ARR_EXPR) { + VMIntArrayExpr* ids = args->arg(0)->asIntArray(); + for (int i = 0; i < ids->arraySize(); ++i) { + const ScriptID id = ids->evalIntElement(i); + if (!id || !id.isNoteID()) continue; + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) continue; + + const float fPan = float(pan) / 1000.f; + // commented out, performed by EngineBase::ProcessNoteSynthParam() for time accuracy behavior + /*if (relative) { + pNote->Override.Pan = RTMath::RelativeSummedAvg(pNote->Override.Pan, fPan, ++pNote->Override.PanSources); + } else { + pNote->Override.Pan = fPan; + pNote->Override.PanSources = 1; // only relevant on subsequent change_pan() calls on same note with 'relative' being set + }*/ + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_pan; + e.Param.NoteSynthParam.Delta = fPan; + e.Param.NoteSynthParam.Relative = relative; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } + } + + return successResult(); + } + + #define VM_FILTER_PAR_MAX_VALUE 1000000 + + // change_cutoff() function + + InstrumentScriptVMFunction_change_cutoff::InstrumentScriptVMFunction_change_cutoff(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + bool InstrumentScriptVMFunction_change_cutoff::acceptsArgType(int iArg, ExprType_t type) const { + if (iArg == 0) + return type == INT_EXPR || type == INT_ARR_EXPR; + else + return INT_EXPR; + } + + VMFnResult* InstrumentScriptVMFunction_change_cutoff::exec(VMFnArgs* args) { + int cutoff = args->arg(1)->asInt()->evalInt(); + if (cutoff > VM_FILTER_PAR_MAX_VALUE) { + wrnMsg("change_cutoff(): argument 2 may not be larger than 1000000"); + cutoff = VM_FILTER_PAR_MAX_VALUE; + } else if (cutoff < 0) { + wrnMsg("change_cutoff(): argument 2 may not be negative"); + cutoff = 0; } AbstractEngineChannel* pEngineChannel = static_cast(m_vm->m_event->cause.pEngineChannel); - pEngineChannel->IgnoreEvent(id); + if (args->arg(0)->exprType() == INT_EXPR) { + const ScriptID id = args->arg(0)->asInt()->evalInt(); + if (!id) { + wrnMsg("change_cutoff(): note ID for argument 1 may not be zero"); + return successResult(); + } + if (!id.isNoteID()) { + wrnMsg("change_cutoff(): argument 1 is not a note ID"); + return successResult(); + } + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) return successResult(); + + const float fCutoff = float(cutoff) / float(VM_FILTER_PAR_MAX_VALUE); + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_cutoff; + e.Param.NoteSynthParam.Delta = fCutoff; + e.Param.NoteSynthParam.Relative = false; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } else if (args->arg(0)->exprType() == INT_ARR_EXPR) { + VMIntArrayExpr* ids = args->arg(0)->asIntArray(); + for (int i = 0; i < ids->arraySize(); ++i) { + const ScriptID id = ids->evalIntElement(i); + if (!id || !id.isNoteID()) continue; + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) continue; + + const float fCutoff = float(cutoff) / float(VM_FILTER_PAR_MAX_VALUE); + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_cutoff; + e.Param.NoteSynthParam.Delta = fCutoff; + e.Param.NoteSynthParam.Relative = false; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } + } return successResult(); } + // change_reso() function + + InstrumentScriptVMFunction_change_reso::InstrumentScriptVMFunction_change_reso(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + bool InstrumentScriptVMFunction_change_reso::acceptsArgType(int iArg, ExprType_t type) const { + if (iArg == 0) + return type == INT_EXPR || type == INT_ARR_EXPR; + else + return INT_EXPR; + } + + VMFnResult* InstrumentScriptVMFunction_change_reso::exec(VMFnArgs* args) { + int resonance = args->arg(1)->asInt()->evalInt(); + if (resonance > VM_FILTER_PAR_MAX_VALUE) { + wrnMsg("change_reso(): argument 2 may not be larger than 1000000"); + resonance = VM_FILTER_PAR_MAX_VALUE; + } else if (resonance < 0) { + wrnMsg("change_reso(): argument 2 may not be negative"); + resonance = 0; + } + + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + if (args->arg(0)->exprType() == INT_EXPR) { + const ScriptID id = args->arg(0)->asInt()->evalInt(); + if (!id) { + wrnMsg("change_reso(): note ID for argument 1 may not be zero"); + return successResult(); + } + if (!id.isNoteID()) { + wrnMsg("change_reso(): argument 1 is not a note ID"); + return successResult(); + } + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) return successResult(); + + const float fResonance = float(resonance) / float(VM_FILTER_PAR_MAX_VALUE); + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_resonance; + e.Param.NoteSynthParam.Delta = fResonance; + e.Param.NoteSynthParam.Relative = false; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } else if (args->arg(0)->exprType() == INT_ARR_EXPR) { + VMIntArrayExpr* ids = args->arg(0)->asIntArray(); + for (int i = 0; i < ids->arraySize(); ++i) { + const ScriptID id = ids->evalIntElement(i); + if (!id || !id.isNoteID()) continue; + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + if (!pNote) continue; + + const float fResonance = float(resonance) / float(VM_FILTER_PAR_MAX_VALUE); + + Event e = m_vm->m_event->cause; // copy to get fragment time for "now" + e.Init(); // clear IDs + e.Type = Event::type_note_synth_param; + e.Param.NoteSynthParam.NoteID = id.noteID(); + e.Param.NoteSynthParam.Type = Event::synth_param_resonance; + e.Param.NoteSynthParam.Delta = fResonance; + e.Param.NoteSynthParam.Relative = false; + + pEngineChannel->ScheduleEventMicroSec(&e, 0); + } + } + + return successResult(); + } + + // event_status() function + + InstrumentScriptVMFunction_event_status::InstrumentScriptVMFunction_event_status(InstrumentScriptVM* parent) + : m_vm(parent) + { + } + + VMFnResult* InstrumentScriptVMFunction_event_status::exec(VMFnArgs* args) { + AbstractEngineChannel* pEngineChannel = + static_cast(m_vm->m_event->cause.pEngineChannel); + + const ScriptID id = args->arg(0)->asInt()->evalInt(); + if (!id) { + wrnMsg("event_status(): note ID for argument 1 may not be zero"); + return successResult(EVENT_STATUS_INACTIVE); + } + if (!id.isNoteID()) { + wrnMsg("event_status(): argument 1 is not a note ID"); + return successResult(EVENT_STATUS_INACTIVE); + } + + NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() ); + return successResult(pNote ? EVENT_STATUS_NOTE_QUEUE : EVENT_STATUS_INACTIVE); + } + } // namespace LinuxSampler