/[svn]/linuxsampler/trunk/src/engines/common/InstrumentScriptVMFunctions.cpp
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revision 3118 by schoenebeck, Fri Apr 21 13:33:03 2017 UTC revision 3557 by schoenebeck, Sun Aug 18 00:06:04 2019 UTC
# Line 1  Line 1 
1  /*  /*
2   * Copyright (c) 2014-2017 Christian Schoenebeck   * Copyright (c) 2014-2019 Christian Schoenebeck
3   *   *
4   * http://www.linuxsampler.org   * http://www.linuxsampler.org
5   *   *
# Line 21  namespace LinuxSampler { Line 21  namespace LinuxSampler {
21      }      }
22    
23      VMFnResult* InstrumentScriptVMFunction_play_note::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_play_note::exec(VMFnArgs* args) {
24          int note = args->arg(0)->asInt()->evalInt();          vmint note = args->arg(0)->asInt()->evalInt();
25          int velocity = (args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : 127;          vmint velocity = (args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : 127;
26          int sampleoffset = (args->argsCount() >= 3) ? args->arg(2)->asInt()->evalInt() : 0;          vmint duration = (args->argsCount() >= 4) ? args->arg(3)->asInt()->evalInt() : 0; //TODO: -1 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  
27    
28          if (note < 0 || note > 127) {          if (note < 0 || note > 127) {
29              errMsg("play_note(): argument 1 is an invalid note number");              errMsg("play_note(): argument 1 is an invalid note number");
# Line 36  namespace LinuxSampler { Line 35  namespace LinuxSampler {
35              return errorResult(0);              return errorResult(0);
36          }          }
37    
38          if (sampleoffset < 0) {          if (duration < -2) {
39              errMsg("play_note(): argument 3 may not be a negative sample offset");              errMsg("play_note(): argument 4 must be a duration value of at least -2 or higher");
             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");  
40              return errorResult(0);              return errorResult(0);
41          }          }
42    
# Line 63  namespace LinuxSampler { Line 55  namespace LinuxSampler {
55                  return errorResult(0);                  return errorResult(0);
56              }              }
57              e.Param.Note.ParentNoteID = m_vm->m_event->cause.Param.Note.ID;              e.Param.Note.ParentNoteID = m_vm->m_event->cause.Param.Note.ID;
58                // check if that requested parent note is actually still alive
59                NoteBase* pParentNote =
60                    pEngineChannel->pEngine->NoteByID( e.Param.Note.ParentNoteID );
61                // if parent note is already gone then this new note is not required anymore
62                if (!pParentNote)
63                    return successResult(0);
64          }          }
65    
66          const note_id_t id = pEngineChannel->ScheduleNoteMicroSec(&e, 0);          const note_id_t id = pEngineChannel->ScheduleNoteMicroSec(&e, 0);
67    
68            // if a sample offset is supplied, assign the offset as override
69            // to the previously created Note object
70            if (args->argsCount() >= 3) {
71                vmint sampleoffset = args->arg(2)->asInt()->evalInt();
72                if (sampleoffset >= 0) {
73                    NoteBase* pNote = pEngineChannel->pEngine->NoteByID(id);
74                    if (pNote) {
75                        pNote->Override.SampleOffset =
76                            (decltype(pNote->Override.SampleOffset)) sampleoffset;
77                    }
78                } else if (sampleoffset < -1) {
79                    errMsg("play_note(): sample offset of argument 3 may not be less than -1");
80                }
81            }
82    
83          // if a duration is supplied (and play-note event was scheduled          // if a duration is supplied (and play-note event was scheduled
84          // successfully above), then schedule a subsequent stop-note event          // successfully above), then schedule a subsequent stop-note event
85          if (id && duration > 0) {          if (id && duration > 0) {
# Line 90  namespace LinuxSampler { Line 103  namespace LinuxSampler {
103      }      }
104    
105      VMFnResult* InstrumentScriptVMFunction_set_controller::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_set_controller::exec(VMFnArgs* args) {
106          int controller = args->arg(0)->asInt()->evalInt();          vmint controller = args->arg(0)->asInt()->evalInt();
107          int value      = args->arg(1)->asInt()->evalInt();          vmint value      = args->arg(1)->asInt()->evalInt();
108    
109          AbstractEngineChannel* pEngineChannel =          AbstractEngineChannel* pEngineChannel =
110              static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);              static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
# Line 128  namespace LinuxSampler { Line 141  namespace LinuxSampler {
141      {      {
142      }      }
143    
144      bool InstrumentScriptVMFunction_ignore_event::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_ignore_event::acceptsArgType(vmint iArg, ExprType_t type) const {
145          return type == INT_EXPR || type == INT_ARR_EXPR;          return type == INT_EXPR || type == INT_ARR_EXPR;
146      }      }
147    
# Line 136  namespace LinuxSampler { Line 149  namespace LinuxSampler {
149          AbstractEngineChannel* pEngineChannel =          AbstractEngineChannel* pEngineChannel =
150                  static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);                  static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
151    
152          if (args->arg(0)->exprType() == INT_EXPR) {          if (args->argsCount() == 0 || args->arg(0)->exprType() == INT_EXPR) {
153              const ScriptID id = args->arg(0)->asInt()->evalInt();              const ScriptID id = (args->argsCount() >= 1) ? args->arg(0)->asInt()->evalInt() : m_vm->m_event->id;
154              if (!id) {              if (!id && args->argsCount() >= 1) {
155                  wrnMsg("ignore_event(): event ID argument may not be zero");                  wrnMsg("ignore_event(): event ID argument may not be zero");
156                  // not errorResult(), because that would abort the script, not intentional in this case                  // not errorResult(), because that would abort the script, not intentional in this case
157                  return successResult();                  return successResult();
# Line 184  namespace LinuxSampler { Line 197  namespace LinuxSampler {
197      {      {
198      }      }
199    
200      bool InstrumentScriptVMFunction_note_off::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_note_off::acceptsArgType(vmint iArg, ExprType_t type) const {
201          return type == INT_EXPR || type == INT_ARR_EXPR;          return type == INT_EXPR || type == INT_ARR_EXPR;
202      }      }
203    
# Line 192  namespace LinuxSampler { Line 205  namespace LinuxSampler {
205          AbstractEngineChannel* pEngineChannel =          AbstractEngineChannel* pEngineChannel =
206              static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);              static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
207    
208          int velocity = (args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : 127;          vmint velocity = (args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : 127;
209          if (velocity < 0 || velocity > 127) {          if (velocity < 0 || velocity > 127) {
210              errMsg("note_off(): argument 2 is an invalid velocity value");              errMsg("note_off(): argument 2 is an invalid velocity value");
211              return errorResult();              return errorResult();
# Line 223  namespace LinuxSampler { Line 236  namespace LinuxSampler {
236              pEngineChannel->ScheduleEventMicroSec(&e, 0);              pEngineChannel->ScheduleEventMicroSec(&e, 0);
237          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
238              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
239              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
240                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
241                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
242    
# Line 254  namespace LinuxSampler { Line 267  namespace LinuxSampler {
267    
268      VMFnResult* InstrumentScriptVMFunction_set_event_mark::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_set_event_mark::exec(VMFnArgs* args) {
269          const ScriptID id = args->arg(0)->asInt()->evalInt();          const ScriptID id = args->arg(0)->asInt()->evalInt();
270          const int groupID = args->arg(1)->asInt()->evalInt();          const vmint groupID = args->arg(1)->asInt()->evalInt();
271    
272          if (groupID < 0 || groupID >= INSTR_SCRIPT_EVENT_GROUPS) {          if (groupID < 0 || groupID >= INSTR_SCRIPT_EVENT_GROUPS) {
273              errMsg("set_event_mark(): argument 2 is an invalid group id");              errMsg("set_event_mark(): argument 2 is an invalid group id");
# Line 292  namespace LinuxSampler { Line 305  namespace LinuxSampler {
305    
306      VMFnResult* InstrumentScriptVMFunction_delete_event_mark::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_delete_event_mark::exec(VMFnArgs* args) {
307          const ScriptID id = args->arg(0)->asInt()->evalInt();          const ScriptID id = args->arg(0)->asInt()->evalInt();
308          const int groupID = args->arg(1)->asInt()->evalInt();          const vmint groupID = args->arg(1)->asInt()->evalInt();
309    
310          if (groupID < 0 || groupID >= INSTR_SCRIPT_EVENT_GROUPS) {          if (groupID < 0 || groupID >= INSTR_SCRIPT_EVENT_GROUPS) {
311              errMsg("delete_event_mark(): argument 2 is an invalid group id");              errMsg("delete_event_mark(): argument 2 is an invalid group id");
# Line 314  namespace LinuxSampler { Line 327  namespace LinuxSampler {
327      {      {
328      }      }
329    
330      int InstrumentScriptVMFunction_by_marks::Result::arraySize() const {      vmint InstrumentScriptVMFunction_by_marks::Result::arraySize() const {
331          return eventGroup->size();          return eventGroup->size();
332      }      }
333    
334      int InstrumentScriptVMFunction_by_marks::Result::evalIntElement(uint i) {      vmint InstrumentScriptVMFunction_by_marks::Result::evalIntElement(vmuint i) {
335          return (*eventGroup)[i];          return (*eventGroup)[i];
336      }      }
337    
# Line 335  namespace LinuxSampler { Line 348  namespace LinuxSampler {
348      }      }
349    
350      VMFnResult* InstrumentScriptVMFunction_by_marks::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_by_marks::exec(VMFnArgs* args) {
351          int groupID = args->arg(0)->asInt()->evalInt();          vmint groupID = args->arg(0)->asInt()->evalInt();
352    
353          if (groupID < 0 || groupID >= INSTR_SCRIPT_EVENT_GROUPS) {          if (groupID < 0 || groupID >= INSTR_SCRIPT_EVENT_GROUPS) {
354              errMsg("by_marks(): argument is an invalid group id");              errMsg("by_marks(): argument is an invalid group id");
# Line 355  namespace LinuxSampler { Line 368  namespace LinuxSampler {
368      {      {
369      }      }
370    
371      bool InstrumentScriptVMFunction_change_vol::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_change_vol::acceptsArgType(vmint iArg, ExprType_t type) const {
372          if (iArg == 0)          if (iArg == 0)
373              return type == INT_EXPR || type == INT_ARR_EXPR;              return type == INT_EXPR || type == INT_ARR_EXPR;
374          else          else
375              return INT_EXPR;              return type == INT_EXPR;
376      }      }
377    
378      VMFnResult* InstrumentScriptVMFunction_change_vol::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_vol::exec(VMFnArgs* args) {
379          int volume = args->arg(1)->asInt()->evalInt(); // volume change in milli dB          vmint volume = args->arg(1)->asInt()->evalInt(); // volume change in milli dB
380          bool relative = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : false;          bool relative = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : false;
381          const float fVolumeLin = RTMath::DecibelToLinRatio(float(volume) / 1000.f);          const float fVolumeLin = RTMath::DecibelToLinRatio(float(volume) / 1000.f);
382    
# Line 385  namespace LinuxSampler { Line 398  namespace LinuxSampler {
398              if (!pNote) return successResult();              if (!pNote) return successResult();
399    
400              // if change_vol() was called immediately after note was triggered              // if change_vol() was called immediately after note was triggered
401              // then immediately apply the volume to note object              // then immediately apply the volume to note object, but only if
402              if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {              // change_vol_time() has not been called before
403                if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime &&
404                    pNote->Override.VolumeTime <= DEFAULT_NOTE_VOLUME_TIME_S)
405                {
406                  if (relative)                  if (relative)
407                      pNote->Override.Volume *= fVolumeLin;                      pNote->Override.Volume *= fVolumeLin;
408                  else                  else
# Line 404  namespace LinuxSampler { Line 420  namespace LinuxSampler {
420              }              }
421          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
422              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
423              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
424                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
425                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
426    
# Line 412  namespace LinuxSampler { Line 428  namespace LinuxSampler {
428                  if (!pNote) continue;                  if (!pNote) continue;
429    
430                  // if change_vol() was called immediately after note was triggered                  // if change_vol() was called immediately after note was triggered
431                  // then immediately apply the volume to Note object                  // then immediately apply the volume to Note object, but only if
432                  if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {                  // change_vol_time() has not been called before
433                    if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime &&
434                        pNote->Override.VolumeTime <= DEFAULT_NOTE_VOLUME_TIME_S)
435                    {
436                      if (relative)                      if (relative)
437                          pNote->Override.Volume *= fVolumeLin;                          pNote->Override.Volume *= fVolumeLin;
438                      else                      else
# Line 442  namespace LinuxSampler { Line 461  namespace LinuxSampler {
461      {      {
462      }      }
463    
464      bool InstrumentScriptVMFunction_change_tune::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_change_tune::acceptsArgType(vmint iArg, ExprType_t type) const {
465          if (iArg == 0)          if (iArg == 0)
466              return type == INT_EXPR || type == INT_ARR_EXPR;              return type == INT_EXPR || type == INT_ARR_EXPR;
467          else          else
468              return INT_EXPR;              return type == INT_EXPR;
469      }      }
470    
471      VMFnResult* InstrumentScriptVMFunction_change_tune::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_tune::exec(VMFnArgs* args) {
472          int tune = args->arg(1)->asInt()->evalInt(); // tuning change in milli cents          vmint tune = args->arg(1)->asInt()->evalInt(); // tuning change in milli cents
473          bool relative = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : false;          bool relative = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : false;
474          const float fFreqRatio = RTMath::CentsToFreqRatioUnlimited(float(tune) / 1000.f);          const float fFreqRatio = RTMath::CentsToFreqRatioUnlimited(float(tune) / 1000.f);
475    
# Line 472  namespace LinuxSampler { Line 491  namespace LinuxSampler {
491              if (!pNote) return successResult();              if (!pNote) return successResult();
492    
493              // if change_tune() was called immediately after note was triggered              // if change_tune() was called immediately after note was triggered
494              // then immediately apply the tuning to Note object              // then immediately apply the tuning to Note object, but only if
495              if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {              // change_tune_time() has not been called before
496                if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime &&
497                    pNote->Override.PitchTime <= DEFAULT_NOTE_PITCH_TIME_S)
498                {
499                  if (relative)                  if (relative)
500                      pNote->Override.Pitch *= fFreqRatio;                      pNote->Override.Pitch *= fFreqRatio;
501                  else                  else
# Line 491  namespace LinuxSampler { Line 513  namespace LinuxSampler {
513              }              }
514          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
515              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
516              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
517                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
518                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
519    
# Line 499  namespace LinuxSampler { Line 521  namespace LinuxSampler {
521                  if (!pNote) continue;                  if (!pNote) continue;
522    
523                  // if change_tune() was called immediately after note was triggered                  // if change_tune() was called immediately after note was triggered
524                  // then immediately apply the tuning to Note object                  // then immediately apply the tuning to Note object, but only if
525                  if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {                  // change_tune_time() has not been called before
526                    if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime &&
527                        pNote->Override.PitchTime <= DEFAULT_NOTE_PITCH_TIME_S)
528                    {
529                      if (relative)                      if (relative)
530                          pNote->Override.Pitch *= fFreqRatio;                          pNote->Override.Pitch *= fFreqRatio;
531                      else                      else
# Line 529  namespace LinuxSampler { Line 554  namespace LinuxSampler {
554      {      {
555      }      }
556    
557      bool InstrumentScriptVMFunction_change_pan::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_change_pan::acceptsArgType(vmint iArg, ExprType_t type) const {
558          if (iArg == 0)          if (iArg == 0)
559              return type == INT_EXPR || type == INT_ARR_EXPR;              return type == INT_EXPR || type == INT_ARR_EXPR;
560          else          else
561              return INT_EXPR;              return type == INT_EXPR;
562      }      }
563    
564      VMFnResult* InstrumentScriptVMFunction_change_pan::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_pan::exec(VMFnArgs* args) {
565          int pan = args->arg(1)->asInt()->evalInt();          vmint pan = args->arg(1)->asInt()->evalInt();
566          bool relative = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : false;          bool relative = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : false;
567    
568          if (pan > 1000) {          if (pan > 1000) {
# Line 568  namespace LinuxSampler { Line 593  namespace LinuxSampler {
593    
594              // if change_pan() was called immediately after note was triggered              // if change_pan() was called immediately after note was triggered
595              // then immediately apply the panning to Note object              // then immediately apply the panning to Note object
596              if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {              if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
597                  if (relative) {                  if (relative) {
598                      pNote->Override.Pan = RTMath::RelativeSummedAvg(pNote->Override.Pan, fPan, ++pNote->Override.PanSources);                      pNote->Override.Pan = RTMath::RelativeSummedAvg(pNote->Override.Pan, fPan, ++pNote->Override.PanSources);
599                  } else {                  } else {
# Line 588  namespace LinuxSampler { Line 613  namespace LinuxSampler {
613              }              }
614          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
615              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
616              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
617                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
618                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
619    
# Line 597  namespace LinuxSampler { Line 622  namespace LinuxSampler {
622    
623                  // if change_pan() was called immediately after note was triggered                  // if change_pan() was called immediately after note was triggered
624                  // then immediately apply the panning to Note object                  // then immediately apply the panning to Note object
625                  if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {                  if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
626                      if (relative) {                      if (relative) {
627                          pNote->Override.Pan = RTMath::RelativeSummedAvg(pNote->Override.Pan, fPan, ++pNote->Override.PanSources);                          pNote->Override.Pan = RTMath::RelativeSummedAvg(pNote->Override.Pan, fPan, ++pNote->Override.PanSources);
628                      } else {                      } else {
# Line 631  namespace LinuxSampler { Line 656  namespace LinuxSampler {
656      {      {
657      }      }
658    
659      bool InstrumentScriptVMFunction_change_cutoff::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_change_cutoff::acceptsArgType(vmint iArg, ExprType_t type) const {
660          if (iArg == 0)          if (iArg == 0)
661              return type == INT_EXPR || type == INT_ARR_EXPR;              return type == INT_EXPR || type == INT_ARR_EXPR;
662          else          else
663              return INT_EXPR;              return type == INT_EXPR;
664      }      }
665    
666      VMFnResult* InstrumentScriptVMFunction_change_cutoff::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_cutoff::exec(VMFnArgs* args) {
667          int cutoff = args->arg(1)->asInt()->evalInt();          vmint cutoff = args->arg(1)->asInt()->evalInt();
668          if (cutoff > VM_FILTER_PAR_MAX_VALUE) {          if (cutoff > VM_FILTER_PAR_MAX_VALUE) {
669              wrnMsg("change_cutoff(): argument 2 may not be larger than 1000000");              wrnMsg("change_cutoff(): argument 2 may not be larger than 1000000");
670              cutoff = VM_FILTER_PAR_MAX_VALUE;              cutoff = VM_FILTER_PAR_MAX_VALUE;
# Line 668  namespace LinuxSampler { Line 693  namespace LinuxSampler {
693    
694              // if change_cutoff() was called immediately after note was triggered              // if change_cutoff() was called immediately after note was triggered
695              // then immediately apply cutoff to Note object              // then immediately apply cutoff to Note object
696              if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {              if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
697                  pNote->Override.Cutoff = fCutoff;                  pNote->Override.Cutoff = fCutoff;
698              } else { // otherwise schedule cutoff change ...              } else { // otherwise schedule cutoff change ...
699                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 683  namespace LinuxSampler { Line 708  namespace LinuxSampler {
708              }              }
709          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
710              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
711              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
712                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
713                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
714    
# Line 692  namespace LinuxSampler { Line 717  namespace LinuxSampler {
717    
718                  // if change_cutoff() was called immediately after note was triggered                  // if change_cutoff() was called immediately after note was triggered
719                  // then immediately apply cutoff to Note object                  // then immediately apply cutoff to Note object
720                  if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {                  if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
721                      pNote->Override.Cutoff = fCutoff;                      pNote->Override.Cutoff = fCutoff;
722                  } else { // otherwise schedule cutoff change ...                  } else { // otherwise schedule cutoff change ...
723                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 718  namespace LinuxSampler { Line 743  namespace LinuxSampler {
743      {      {
744      }      }
745    
746      bool InstrumentScriptVMFunction_change_reso::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_change_reso::acceptsArgType(vmint iArg, ExprType_t type) const {
747          if (iArg == 0)          if (iArg == 0)
748              return type == INT_EXPR || type == INT_ARR_EXPR;              return type == INT_EXPR || type == INT_ARR_EXPR;
749          else          else
750              return INT_EXPR;              return type == INT_EXPR;
751      }      }
752    
753      VMFnResult* InstrumentScriptVMFunction_change_reso::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_reso::exec(VMFnArgs* args) {
754          int resonance = args->arg(1)->asInt()->evalInt();          vmint resonance = args->arg(1)->asInt()->evalInt();
755          if (resonance > VM_FILTER_PAR_MAX_VALUE) {          if (resonance > VM_FILTER_PAR_MAX_VALUE) {
756              wrnMsg("change_reso(): argument 2 may not be larger than 1000000");              wrnMsg("change_reso(): argument 2 may not be larger than 1000000");
757              resonance = VM_FILTER_PAR_MAX_VALUE;              resonance = VM_FILTER_PAR_MAX_VALUE;
# Line 755  namespace LinuxSampler { Line 780  namespace LinuxSampler {
780    
781              // if change_reso() was called immediately after note was triggered              // if change_reso() was called immediately after note was triggered
782              // then immediately apply resonance to Note object              // then immediately apply resonance to Note object
783              if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {              if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
784                  pNote->Override.Resonance = fResonance;                  pNote->Override.Resonance = fResonance;
785              } else { // otherwise schedule resonance change ...              } else { // otherwise schedule resonance change ...
786                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 770  namespace LinuxSampler { Line 795  namespace LinuxSampler {
795              }              }
796          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
797              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
798              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
799                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
800                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
801    
# Line 779  namespace LinuxSampler { Line 804  namespace LinuxSampler {
804    
805                  // if change_reso() was called immediately after note was triggered                  // if change_reso() was called immediately after note was triggered
806                  // then immediately apply resonance to Note object                  // then immediately apply resonance to Note object
807                  if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {                  if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
808                      pNote->Override.Resonance = fResonance;                      pNote->Override.Resonance = fResonance;
809                  } else { // otherwise schedule resonance change ...                  } else { // otherwise schedule resonance change ...
810                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 805  namespace LinuxSampler { Line 830  namespace LinuxSampler {
830      {      {
831      }      }
832    
833      bool InstrumentScriptVMFunction_change_attack::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_change_attack::acceptsArgType(vmint iArg, ExprType_t type) const {
834          if (iArg == 0)          if (iArg == 0)
835              return type == INT_EXPR || type == INT_ARR_EXPR;              return type == INT_EXPR || type == INT_ARR_EXPR;
836          else          else
837              return INT_EXPR;              return type == INT_EXPR;
838      }      }
839    
840      VMFnResult* InstrumentScriptVMFunction_change_attack::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_attack::exec(VMFnArgs* args) {
841          int attack = args->arg(1)->asInt()->evalInt();          vmint attack = args->arg(1)->asInt()->evalInt();
842          if (attack > VM_EG_PAR_MAX_VALUE) {          // note: intentionally not checking against a max. value here!
843              wrnMsg("change_attack(): argument 2 may not be larger than 1000000");          // (to allow i.e. passing 2000000 for doubling the attack time)
844              attack = VM_EG_PAR_MAX_VALUE;          if (attack < 0) {
         } else if (attack < 0) {  
845              wrnMsg("change_attack(): argument 2 may not be negative");              wrnMsg("change_attack(): argument 2 may not be negative");
846              attack = 0;              attack = 0;
847          }          }
# Line 842  namespace LinuxSampler { Line 866  namespace LinuxSampler {
866    
867              // if change_attack() was called immediately after note was triggered              // if change_attack() was called immediately after note was triggered
868              // then immediately apply attack to Note object              // then immediately apply attack to Note object
869              if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {              if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
870                  pNote->Override.Attack = fAttack;                  pNote->Override.Attack = fAttack;
871              } else { // otherwise schedule attack change ...              } else { // otherwise schedule attack change ...
872                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 857  namespace LinuxSampler { Line 881  namespace LinuxSampler {
881              }              }
882          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
883              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
884              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
885                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
886                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
887    
# Line 866  namespace LinuxSampler { Line 890  namespace LinuxSampler {
890    
891                  // if change_attack() was called immediately after note was triggered                  // if change_attack() was called immediately after note was triggered
892                  // then immediately apply attack to Note object                  // then immediately apply attack to Note object
893                  if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {                  if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
894                      pNote->Override.Attack = fAttack;                      pNote->Override.Attack = fAttack;
895                  } else { // otherwise schedule attack change ...                  } else { // otherwise schedule attack change ...
896                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 892  namespace LinuxSampler { Line 916  namespace LinuxSampler {
916      {      {
917      }      }
918    
919      bool InstrumentScriptVMFunction_change_decay::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_change_decay::acceptsArgType(vmint iArg, ExprType_t type) const {
920          if (iArg == 0)          if (iArg == 0)
921              return type == INT_EXPR || type == INT_ARR_EXPR;              return type == INT_EXPR || type == INT_ARR_EXPR;
922          else          else
923              return INT_EXPR;              return type == INT_EXPR;
924      }      }
925    
926      VMFnResult* InstrumentScriptVMFunction_change_decay::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_decay::exec(VMFnArgs* args) {
927          int decay = args->arg(1)->asInt()->evalInt();          vmint decay = args->arg(1)->asInt()->evalInt();
928          if (decay > VM_EG_PAR_MAX_VALUE) {          // note: intentionally not checking against a max. value here!
929              wrnMsg("change_decay(): argument 2 may not be larger than 1000000");          // (to allow i.e. passing 2000000 for doubling the decay time)
930              decay = VM_EG_PAR_MAX_VALUE;          if (decay < 0) {
         } else if (decay < 0) {  
931              wrnMsg("change_decay(): argument 2 may not be negative");              wrnMsg("change_decay(): argument 2 may not be negative");
932              decay = 0;              decay = 0;
933          }          }
# Line 929  namespace LinuxSampler { Line 952  namespace LinuxSampler {
952    
953              // if change_decay() was called immediately after note was triggered              // if change_decay() was called immediately after note was triggered
954              // then immediately apply decay to Note object              // then immediately apply decay to Note object
955              if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {              if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
956                  pNote->Override.Decay = fDecay;                  pNote->Override.Decay = fDecay;
957              } else { // otherwise schedule decay change ...              } else { // otherwise schedule decay change ...
958                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 944  namespace LinuxSampler { Line 967  namespace LinuxSampler {
967              }              }
968          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
969              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
970              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
971                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
972                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
973    
# Line 953  namespace LinuxSampler { Line 976  namespace LinuxSampler {
976    
977                  // if change_decay() was called immediately after note was triggered                  // if change_decay() was called immediately after note was triggered
978                  // then immediately apply decay to Note object                  // then immediately apply decay to Note object
979                  if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {                  if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
980                      pNote->Override.Decay = fDecay;                      pNote->Override.Decay = fDecay;
981                  } else { // otherwise schedule decay change ...                  } else { // otherwise schedule decay change ...
982                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 979  namespace LinuxSampler { Line 1002  namespace LinuxSampler {
1002      {      {
1003      }      }
1004    
1005      bool InstrumentScriptVMFunction_change_release::acceptsArgType(int iArg, ExprType_t type) const {      bool InstrumentScriptVMFunction_change_release::acceptsArgType(vmint iArg, ExprType_t type) const {
1006          if (iArg == 0)          if (iArg == 0)
1007              return type == INT_EXPR || type == INT_ARR_EXPR;              return type == INT_EXPR || type == INT_ARR_EXPR;
1008          else          else
1009              return INT_EXPR;              return type == INT_EXPR;
1010      }      }
1011    
1012      VMFnResult* InstrumentScriptVMFunction_change_release::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_release::exec(VMFnArgs* args) {
1013          int release = args->arg(1)->asInt()->evalInt();          vmint release = args->arg(1)->asInt()->evalInt();
1014          if (release > VM_EG_PAR_MAX_VALUE) {          // note: intentionally not checking against a max. value here!
1015              wrnMsg("change_release(): argument 2 may not be larger than 1000000");          // (to allow i.e. passing 2000000 for doubling the release time)
1016              release = VM_EG_PAR_MAX_VALUE;          if (release < 0) {
         } else if (release < 0) {  
1017              wrnMsg("change_release(): argument 2 may not be negative");              wrnMsg("change_release(): argument 2 may not be negative");
1018              release = 0;              release = 0;
1019          }          }
# Line 1016  namespace LinuxSampler { Line 1038  namespace LinuxSampler {
1038    
1039              // if change_release() was called immediately after note was triggered              // if change_release() was called immediately after note was triggered
1040              // then immediately apply relase to Note object              // then immediately apply relase to Note object
1041              if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {              if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1042                  pNote->Override.Release = fRelease;                  pNote->Override.Release = fRelease;
1043              } else { // otherwise schedule release change ...              } else { // otherwise schedule release change ...
1044                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 1031  namespace LinuxSampler { Line 1053  namespace LinuxSampler {
1053              }              }
1054          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
1055              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
1056              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
1057                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
1058                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
1059    
# Line 1040  namespace LinuxSampler { Line 1062  namespace LinuxSampler {
1062    
1063                  // if change_release() was called immediately after note was triggered                  // if change_release() was called immediately after note was triggered
1064                  // then immediately apply relase to Note object                  // then immediately apply relase to Note object
1065                  if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {                  if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1066                      pNote->Override.Release = fRelease;                      pNote->Override.Release = fRelease;
1067                  } else { // otherwise schedule release change ...                  } else { // otherwise schedule release change ...
1068                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 1059  namespace LinuxSampler { Line 1081  namespace LinuxSampler {
1081          return successResult();          return successResult();
1082      }      }
1083    
1084      #define VM_GENERAL_CHANGE_SYNTH_PAR_MAX_VALUE 1000000      // template for change_*() functions
1085    
1086      bool VMChangeSynthParamFunction::acceptsArgType(int iArg, ExprType_t type) const {      bool VMChangeSynthParamFunction::acceptsArgType(vmint iArg, ExprType_t type) const {
1087          if (iArg == 0)          if (iArg == 0)
1088              return type == INT_EXPR || type == INT_ARR_EXPR;              return type == INT_EXPR || type == INT_ARR_EXPR;
1089          else          else
1090              return INT_EXPR;              return type == INT_EXPR;
1091      }      }
1092    
1093      template<float NoteBase::_Override::*T_noteParam, int T_synthParam>      // Arbitrarily chosen constant value symbolizing "no limit".
1094        #define NO_LIMIT 1315916909
1095    
1096        template<float NoteBase::_Override::*T_noteParam, vmint T_synthParam,
1097                 bool T_isNormalizedParam, vmint T_maxValue, vmint T_minValue>
1098      VMFnResult* VMChangeSynthParamFunction::execTemplate(VMFnArgs* args, const char* functionName) {      VMFnResult* VMChangeSynthParamFunction::execTemplate(VMFnArgs* args, const char* functionName) {
1099          int value = args->arg(1)->asInt()->evalInt();          vmint value = args->arg(1)->asInt()->evalInt();
1100          if (value > VM_GENERAL_CHANGE_SYNTH_PAR_MAX_VALUE) {          if (T_maxValue != NO_LIMIT && value > T_maxValue) {
1101              wrnMsg(String(functionName) + "(): argument 2 may not be larger than 1000000");              wrnMsg(String(functionName) + "(): argument 2 may not be larger than " + ToString(T_maxValue));
1102              value = VM_GENERAL_CHANGE_SYNTH_PAR_MAX_VALUE;              value = T_maxValue;
1103          } else if (value < 0) {          } else if (T_minValue != NO_LIMIT && value < T_minValue) {
1104              wrnMsg(String(functionName) + "(): argument 2 may not be negative");              if (T_minValue == 0)
1105              value = 0;                  wrnMsg(String(functionName) + "(): argument 2 may not be negative");
1106          }              else
1107          const float fValue = float(value) / float(VM_GENERAL_CHANGE_SYNTH_PAR_MAX_VALUE);                  wrnMsg(String(functionName) + "(): argument 2 may not be smaller than " + ToString(T_minValue));
1108                value = T_minValue;
1109            }
1110            const float fValue = (T_isNormalizedParam) ?
1111                float(value) / float(T_maxValue) : // convert to 0.0 .. 1.0 value range
1112                float(value) / 1000000.f; // assuming microseconds here, convert to seconds
1113    
1114          AbstractEngineChannel* pEngineChannel =          AbstractEngineChannel* pEngineChannel =
1115              static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);              static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
# Line 1100  namespace LinuxSampler { Line 1131  namespace LinuxSampler {
1131              // if this change_*() script function was called immediately after              // if this change_*() script function was called immediately after
1132              // note was triggered then immediately apply the synth parameter              // note was triggered then immediately apply the synth parameter
1133              // change to Note object              // change to Note object
1134              if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {              if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1135                  pNote->Override.*T_noteParam = fValue;                  pNote->Override.*T_noteParam = fValue;
1136              } else { // otherwise schedule this synth parameter change ...              } else { // otherwise schedule this synth parameter change ...
1137                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                  Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 1115  namespace LinuxSampler { Line 1146  namespace LinuxSampler {
1146              }              }
1147          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {          } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
1148              VMIntArrayExpr* ids = args->arg(0)->asIntArray();              VMIntArrayExpr* ids = args->arg(0)->asIntArray();
1149              for (int i = 0; i < ids->arraySize(); ++i) {              for (vmint i = 0; i < ids->arraySize(); ++i) {
1150                  const ScriptID id = ids->evalIntElement(i);                  const ScriptID id = ids->evalIntElement(i);
1151                  if (!id || !id.isNoteID()) continue;                  if (!id || !id.isNoteID()) continue;
1152    
# Line 1125  namespace LinuxSampler { Line 1156  namespace LinuxSampler {
1156                  // if this change_*() script function was called immediately after                  // if this change_*() script function was called immediately after
1157                  // note was triggered then immediately apply the synth parameter                  // note was triggered then immediately apply the synth parameter
1158                  // change to Note object                  // change to Note object
1159                  if (m_vm->m_event->cause.SchedTime() == pNote->triggerSchedTime) {                  if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1160                      pNote->Override.*T_noteParam = fValue;                      pNote->Override.*T_noteParam = fValue;
1161                  } else { // otherwise schedule this synth parameter change ...                  } else { // otherwise schedule this synth parameter change ...
1162                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"                      Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
# Line 1144  namespace LinuxSampler { Line 1175  namespace LinuxSampler {
1175          return successResult();          return successResult();
1176      }      }
1177    
1178        // change_sustain() function
1179    
1180        VMFnResult* InstrumentScriptVMFunction_change_sustain::exec(VMFnArgs* args) {
1181            return VMChangeSynthParamFunction::execTemplate<
1182                        &NoteBase::_Override::Sustain,
1183                        Event::synth_param_sustain,
1184                        false, NO_LIMIT, 0>( args, "change_sustain" );
1185        }
1186    
1187        // change_cutoff_attack() function
1188    
1189        VMFnResult* InstrumentScriptVMFunction_change_cutoff_attack::exec(VMFnArgs* args) {
1190            return VMChangeSynthParamFunction::execTemplate<
1191                        &NoteBase::_Override::CutoffAttack,
1192                        Event::synth_param_cutoff_attack,
1193                        false, NO_LIMIT, 0>( args, "change_cutoff_attack" );
1194        }
1195    
1196        // change_cutoff_decay() function
1197    
1198        VMFnResult* InstrumentScriptVMFunction_change_cutoff_decay::exec(VMFnArgs* args) {
1199            return VMChangeSynthParamFunction::execTemplate<
1200                        &NoteBase::_Override::CutoffDecay,
1201                        Event::synth_param_cutoff_decay,
1202                        false, NO_LIMIT, 0>( args, "change_cutoff_decay" );
1203        }
1204    
1205        // change_cutoff_sustain() function
1206    
1207        VMFnResult* InstrumentScriptVMFunction_change_cutoff_sustain::exec(VMFnArgs* args) {
1208            return VMChangeSynthParamFunction::execTemplate<
1209                        &NoteBase::_Override::CutoffSustain,
1210                        Event::synth_param_cutoff_sustain,
1211                        false, NO_LIMIT, 0>( args, "change_cutoff_sustain" );
1212        }
1213    
1214        // change_cutoff_release() function
1215    
1216        VMFnResult* InstrumentScriptVMFunction_change_cutoff_release::exec(VMFnArgs* args) {
1217            return VMChangeSynthParamFunction::execTemplate<
1218                        &NoteBase::_Override::CutoffRelease,
1219                        Event::synth_param_cutoff_release,
1220                        false, NO_LIMIT, 0>( args, "change_cutoff_release" );
1221        }
1222    
1223      // change_amp_lfo_depth() function      // change_amp_lfo_depth() function
1224    
1225      VMFnResult* InstrumentScriptVMFunction_change_amp_lfo_depth::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_amp_lfo_depth::exec(VMFnArgs* args) {
1226          return VMChangeSynthParamFunction::execTemplate< &NoteBase::_Override::AmpLFODepth, Event::synth_param_amp_lfo_depth >(args, "change_amp_lfo_depth");          return VMChangeSynthParamFunction::execTemplate<
1227                        &NoteBase::_Override::AmpLFODepth,
1228                        Event::synth_param_amp_lfo_depth,
1229                        true, 1000000, 0>( args, "change_amp_lfo_depth" );
1230      }      }
1231    
1232      // change_amp_lfo_freq() function      // change_amp_lfo_freq() function
1233    
1234      VMFnResult* InstrumentScriptVMFunction_change_amp_lfo_freq::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_amp_lfo_freq::exec(VMFnArgs* args) {
1235          return VMChangeSynthParamFunction::execTemplate< &NoteBase::_Override::AmpLFOFreq, Event::synth_param_amp_lfo_freq >(args, "change_amp_lfo_freq");          return VMChangeSynthParamFunction::execTemplate<
1236                        &NoteBase::_Override::AmpLFOFreq,
1237                        Event::synth_param_amp_lfo_freq,
1238                        true, 1000000, 0>( args, "change_amp_lfo_freq" );
1239        }
1240    
1241        // change_cutoff_lfo_depth() function
1242    
1243        VMFnResult* InstrumentScriptVMFunction_change_cutoff_lfo_depth::exec(VMFnArgs* args) {
1244            return VMChangeSynthParamFunction::execTemplate<
1245                        &NoteBase::_Override::CutoffLFODepth,
1246                        Event::synth_param_cutoff_lfo_depth,
1247                        true, 1000000, 0>( args, "change_cutoff_lfo_depth" );
1248        }
1249    
1250        // change_cutoff_lfo_freq() function
1251    
1252        VMFnResult* InstrumentScriptVMFunction_change_cutoff_lfo_freq::exec(VMFnArgs* args) {
1253            return VMChangeSynthParamFunction::execTemplate<
1254                        &NoteBase::_Override::CutoffLFOFreq,
1255                        Event::synth_param_cutoff_lfo_freq,
1256                        true, 1000000, 0>( args, "change_cutoff_lfo_freq" );
1257      }      }
1258    
1259      // change_pitch_lfo_depth() function      // change_pitch_lfo_depth() function
1260    
1261      VMFnResult* InstrumentScriptVMFunction_change_pitch_lfo_depth::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_pitch_lfo_depth::exec(VMFnArgs* args) {
1262          return VMChangeSynthParamFunction::execTemplate< &NoteBase::_Override::PitchLFODepth, Event::synth_param_pitch_lfo_depth >(args, "change_pitch_lfo_depth");          return VMChangeSynthParamFunction::execTemplate<
1263                        &NoteBase::_Override::PitchLFODepth,
1264                        Event::synth_param_pitch_lfo_depth,
1265                        true, 1000000, 0>( args, "change_pitch_lfo_depth" );
1266      }      }
1267    
1268      // change_pitch_lfo_freq() function      // change_pitch_lfo_freq() function
1269    
1270      VMFnResult* InstrumentScriptVMFunction_change_pitch_lfo_freq::exec(VMFnArgs* args) {      VMFnResult* InstrumentScriptVMFunction_change_pitch_lfo_freq::exec(VMFnArgs* args) {
1271          return VMChangeSynthParamFunction::execTemplate< &NoteBase::_Override::PitchLFOFreq, Event::synth_param_pitch_lfo_freq >(args, "change_pitch_lfo_freq");          return VMChangeSynthParamFunction::execTemplate<
1272                        &NoteBase::_Override::PitchLFOFreq,
1273                        Event::synth_param_pitch_lfo_freq,
1274                        true, 1000000, 0>( args, "change_pitch_lfo_freq" );
1275        }
1276    
1277        // change_vol_time() function
1278    
1279        VMFnResult* InstrumentScriptVMFunction_change_vol_time::exec(VMFnArgs* args) {
1280            return VMChangeSynthParamFunction::execTemplate<
1281                        &NoteBase::_Override::VolumeTime,
1282                        Event::synth_param_volume_time,
1283                        false, NO_LIMIT, 0>( args, "change_vol_time" );
1284        }
1285    
1286        // change_tune_time() function
1287    
1288        VMFnResult* InstrumentScriptVMFunction_change_tune_time::exec(VMFnArgs* args) {
1289            return VMChangeSynthParamFunction::execTemplate<
1290                        &NoteBase::_Override::PitchTime,
1291                        Event::synth_param_pitch_time,
1292                        false, NO_LIMIT, 0>( args, "change_tune_time" );
1293        }
1294    
1295        // change_pan_time() function
1296    
1297        VMFnResult* InstrumentScriptVMFunction_change_pan_time::exec(VMFnArgs* args) {
1298            return VMChangeSynthParamFunction::execTemplate<
1299            &NoteBase::_Override::PanTime,
1300            Event::synth_param_pan_time,
1301            false, NO_LIMIT, 0>( args, "change_pan_time" );
1302        }
1303    
1304        // template for change_*_curve() functions
1305    
1306        bool VMChangeFadeCurveFunction::acceptsArgType(vmint iArg, ExprType_t type) const {
1307            if (iArg == 0)
1308                return type == INT_EXPR || type == INT_ARR_EXPR;
1309            else
1310                return type == INT_EXPR;
1311        }
1312    
1313        template<fade_curve_t NoteBase::_Override::*T_noteParam, vmint T_synthParam>
1314        VMFnResult* VMChangeFadeCurveFunction::execTemplate(VMFnArgs* args, const char* functionName) {
1315            vmint value = args->arg(1)->asInt()->evalInt();
1316            switch (value) {
1317                case FADE_CURVE_LINEAR:
1318                case FADE_CURVE_EASE_IN_EASE_OUT:
1319                    break;
1320                default:
1321                    wrnMsg(String(functionName) + "(): invalid curve type passed as argument 2");
1322                    return successResult();
1323            }
1324    
1325            AbstractEngineChannel* pEngineChannel =
1326                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
1327    
1328            if (args->arg(0)->exprType() == INT_EXPR) {
1329                const ScriptID id = args->arg(0)->asInt()->evalInt();
1330                if (!id) {
1331                    wrnMsg(String(functionName) + "(): note ID for argument 1 may not be zero");
1332                    return successResult();
1333                }
1334                if (!id.isNoteID()) {
1335                    wrnMsg(String(functionName) + "(): argument 1 is not a note ID");
1336                    return successResult();
1337                }
1338    
1339                NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1340                if (!pNote) return successResult();
1341    
1342                // if this change_*_curve() script function was called immediately after
1343                // note was triggered then immediately apply the synth parameter
1344                // change to Note object
1345                if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1346                    pNote->Override.*T_noteParam = (fade_curve_t) value;
1347                } else { // otherwise schedule this synth parameter change ...
1348                    Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1349                    e.Init(); // clear IDs
1350                    e.Type = Event::type_note_synth_param;
1351                    e.Param.NoteSynthParam.NoteID   = id.noteID();
1352                    e.Param.NoteSynthParam.Type     = (Event::synth_param_t) T_synthParam;
1353                    e.Param.NoteSynthParam.Delta    = value;
1354                    e.Param.NoteSynthParam.Relative = false;
1355    
1356                    pEngineChannel->ScheduleEventMicroSec(&e, 0);
1357                }
1358            } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
1359                VMIntArrayExpr* ids = args->arg(0)->asIntArray();
1360                for (vmint i = 0; i < ids->arraySize(); ++i) {
1361                    const ScriptID id = ids->evalIntElement(i);
1362                    if (!id || !id.isNoteID()) continue;
1363    
1364                    NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1365                    if (!pNote) continue;
1366    
1367                    // if this change_*_curve() script function was called immediately after
1368                    // note was triggered then immediately apply the synth parameter
1369                    // change to Note object
1370                    if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1371                        pNote->Override.*T_noteParam = (fade_curve_t) value;
1372                    } else { // otherwise schedule this synth parameter change ...
1373                        Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1374                        e.Init(); // clear IDs
1375                        e.Type = Event::type_note_synth_param;
1376                        e.Param.NoteSynthParam.NoteID   = id.noteID();
1377                        e.Param.NoteSynthParam.Type     = (Event::synth_param_t) T_synthParam;
1378                        e.Param.NoteSynthParam.Delta    = value;
1379                        e.Param.NoteSynthParam.Relative = false;
1380    
1381                        pEngineChannel->ScheduleEventMicroSec(&e, 0);
1382                    }
1383                }
1384            }
1385    
1386            return successResult();
1387        }
1388    
1389        // change_vol_curve() function
1390    
1391        VMFnResult* InstrumentScriptVMFunction_change_vol_curve::exec(VMFnArgs* args) {
1392            return VMChangeFadeCurveFunction::execTemplate<
1393                        &NoteBase::_Override::VolumeCurve,
1394                        Event::synth_param_volume_curve>( args, "change_vol_curve" );
1395        }
1396    
1397        // change_tune_curve() function
1398    
1399        VMFnResult* InstrumentScriptVMFunction_change_tune_curve::exec(VMFnArgs* args) {
1400            return VMChangeFadeCurveFunction::execTemplate<
1401                        &NoteBase::_Override::PitchCurve,
1402                        Event::synth_param_pitch_curve>( args, "change_tune_curve" );
1403        }
1404    
1405        // change_pan_curve() function
1406    
1407        VMFnResult* InstrumentScriptVMFunction_change_pan_curve::exec(VMFnArgs* args) {
1408            return VMChangeFadeCurveFunction::execTemplate<
1409            &NoteBase::_Override::PanCurve,
1410            Event::synth_param_pan_curve>( args, "change_pan_curve" );
1411        }
1412    
1413        // fade_in() function
1414    
1415        InstrumentScriptVMFunction_fade_in::InstrumentScriptVMFunction_fade_in(InstrumentScriptVM* parent)
1416            : m_vm(parent)
1417        {
1418        }
1419    
1420        bool InstrumentScriptVMFunction_fade_in::acceptsArgType(vmint iArg, ExprType_t type) const {
1421            if (iArg == 0)
1422                return type == INT_EXPR || type == INT_ARR_EXPR;
1423            else
1424                return type == INT_EXPR;
1425        }
1426    
1427        VMFnResult* InstrumentScriptVMFunction_fade_in::exec(VMFnArgs* args) {
1428            vmint duration = args->arg(1)->asInt()->evalInt();
1429            if (duration < 0) {
1430                wrnMsg("fade_in(): argument 2 may not be negative");
1431                duration = 0;
1432            }
1433            const float fDuration = float(duration) / 1000000.f; // convert microseconds to seconds
1434    
1435            AbstractEngineChannel* pEngineChannel =
1436                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
1437    
1438            if (args->arg(0)->exprType() == INT_EXPR) {
1439                const ScriptID id = args->arg(0)->asInt()->evalInt();
1440                if (!id) {
1441                    wrnMsg("fade_in(): note ID for argument 1 may not be zero");
1442                    return successResult();
1443                }
1444                if (!id.isNoteID()) {
1445                    wrnMsg("fade_in(): argument 1 is not a note ID");
1446                    return successResult();
1447                }
1448    
1449                NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1450                if (!pNote) return successResult();
1451    
1452                // if fade_in() was called immediately after note was triggered
1453                // then immediately apply a start volume of zero to Note object,
1454                // as well as the fade in duration
1455                if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1456                    pNote->Override.Volume = 0.f;
1457                    pNote->Override.VolumeTime = fDuration;
1458                } else { // otherwise schedule a "volume time" change with the requested fade in duration ...
1459                    Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1460                    e.Init(); // clear IDs
1461                    e.Type = Event::type_note_synth_param;
1462                    e.Param.NoteSynthParam.NoteID   = id.noteID();
1463                    e.Param.NoteSynthParam.Type     = Event::synth_param_volume_time;
1464                    e.Param.NoteSynthParam.Delta    = fDuration;
1465                    e.Param.NoteSynthParam.Relative = false;
1466    
1467                    pEngineChannel->ScheduleEventMicroSec(&e, 0);
1468                }
1469                // and finally schedule a "volume" change, simply one time slice
1470                // ahead, with the final fade in volume (1.0)
1471                {
1472                    Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1473                    e.Init(); // clear IDs
1474                    e.Type = Event::type_note_synth_param;
1475                    e.Param.NoteSynthParam.NoteID   = id.noteID();
1476                    e.Param.NoteSynthParam.Type     = Event::synth_param_volume;
1477                    e.Param.NoteSynthParam.Delta    = 1.f;
1478                    e.Param.NoteSynthParam.Relative = false;
1479    
1480                    // scheduling with 0 delay would also work here, but +1 is more
1481                    // safe regarding potential future implementation changes of the
1482                    // scheduler (see API comments of RTAVLTree::insert())
1483                    pEngineChannel->ScheduleEventMicroSec(&e, 1);
1484                }
1485            } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
1486                VMIntArrayExpr* ids = args->arg(0)->asIntArray();
1487                for (vmint i = 0; i < ids->arraySize(); ++i) {
1488                    const ScriptID id = ids->evalIntElement(i);
1489                    if (!id || !id.isNoteID()) continue;
1490    
1491                    NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1492                    if (!pNote) continue;
1493    
1494                    // if fade_in() was called immediately after note was triggered
1495                    // then immediately apply a start volume of zero to Note object,
1496                    // as well as the fade in duration
1497                    if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1498                        pNote->Override.Volume = 0.f;
1499                        pNote->Override.VolumeTime = fDuration;
1500                    } else { // otherwise schedule a "volume time" change with the requested fade in duration ...
1501                        Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1502                        e.Init(); // clear IDs
1503                        e.Type = Event::type_note_synth_param;
1504                        e.Param.NoteSynthParam.NoteID   = id.noteID();
1505                        e.Param.NoteSynthParam.Type     = Event::synth_param_volume_time;
1506                        e.Param.NoteSynthParam.Delta    = fDuration;
1507                        e.Param.NoteSynthParam.Relative = false;
1508    
1509                        pEngineChannel->ScheduleEventMicroSec(&e, 0);
1510                    }
1511                    // and finally schedule a "volume" change, simply one time slice
1512                    // ahead, with the final fade in volume (1.0)
1513                    {
1514                        Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1515                        e.Init(); // clear IDs
1516                        e.Type = Event::type_note_synth_param;
1517                        e.Param.NoteSynthParam.NoteID   = id.noteID();
1518                        e.Param.NoteSynthParam.Type     = Event::synth_param_volume;
1519                        e.Param.NoteSynthParam.Delta    = 1.f;
1520                        e.Param.NoteSynthParam.Relative = false;
1521    
1522                        // scheduling with 0 delay would also work here, but +1 is more
1523                        // safe regarding potential future implementation changes of the
1524                        // scheduler (see API comments of RTAVLTree::insert())
1525                        pEngineChannel->ScheduleEventMicroSec(&e, 1);
1526                    }
1527                }
1528            }
1529    
1530            return successResult();
1531        }
1532    
1533        // fade_out() function
1534    
1535        InstrumentScriptVMFunction_fade_out::InstrumentScriptVMFunction_fade_out(InstrumentScriptVM* parent)
1536            : m_vm(parent)
1537        {
1538        }
1539    
1540        bool InstrumentScriptVMFunction_fade_out::acceptsArgType(vmint iArg, ExprType_t type) const {
1541            if (iArg == 0)
1542                return type == INT_EXPR || type == INT_ARR_EXPR;
1543            else
1544                return type == INT_EXPR;
1545        }
1546    
1547        VMFnResult* InstrumentScriptVMFunction_fade_out::exec(VMFnArgs* args) {
1548            vmint duration = args->arg(1)->asInt()->evalInt();
1549            if (duration < 0) {
1550                wrnMsg("fade_out(): argument 2 may not be negative");
1551                duration = 0;
1552            }
1553            const float fDuration = float(duration) / 1000000.f; // convert microseconds to seconds
1554    
1555            bool stop = (args->argsCount() >= 3) ? (args->arg(2)->asInt()->evalInt() & 1) : true;
1556    
1557            AbstractEngineChannel* pEngineChannel =
1558                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
1559    
1560            if (args->arg(0)->exprType() == INT_EXPR) {
1561                const ScriptID id = args->arg(0)->asInt()->evalInt();
1562                if (!id) {
1563                    wrnMsg("fade_out(): note ID for argument 1 may not be zero");
1564                    return successResult();
1565                }
1566                if (!id.isNoteID()) {
1567                    wrnMsg("fade_out(): argument 1 is not a note ID");
1568                    return successResult();
1569                }
1570    
1571                NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1572                if (!pNote) return successResult();
1573    
1574                // if fade_out() was called immediately after note was triggered
1575                // then immediately apply fade out duration to Note object
1576                if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1577                    pNote->Override.VolumeTime = fDuration;
1578                } else { // otherwise schedule a "volume time" change with the requested fade out duration ...
1579                    Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1580                    e.Init(); // clear IDs
1581                    e.Type = Event::type_note_synth_param;
1582                    e.Param.NoteSynthParam.NoteID   = id.noteID();
1583                    e.Param.NoteSynthParam.Type     = Event::synth_param_volume_time;
1584                    e.Param.NoteSynthParam.Delta    = fDuration;
1585                    e.Param.NoteSynthParam.Relative = false;
1586    
1587                    pEngineChannel->ScheduleEventMicroSec(&e, 0);
1588                }
1589                // now schedule a "volume" change, simply one time slice ahead, with
1590                // the final fade out volume (0.0)
1591                {
1592                    Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1593                    e.Init(); // clear IDs
1594                    e.Type = Event::type_note_synth_param;
1595                    e.Param.NoteSynthParam.NoteID   = id.noteID();
1596                    e.Param.NoteSynthParam.Type     = Event::synth_param_volume;
1597                    e.Param.NoteSynthParam.Delta    = 0.f;
1598                    e.Param.NoteSynthParam.Relative = false;
1599    
1600                    // scheduling with 0 delay would also work here, but +1 is more
1601                    // safe regarding potential future implementation changes of the
1602                    // scheduler (see API comments of RTAVLTree::insert())
1603                    pEngineChannel->ScheduleEventMicroSec(&e, 1);
1604                }
1605                // and finally if stopping the note was requested after the fade out
1606                // completed, then schedule to kill the voice after the requested
1607                // duration
1608                if (stop) {
1609                    Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1610                    e.Init(); // clear IDs
1611                    e.Type = Event::type_kill_note;
1612                    e.Param.Note.ID = id.noteID();
1613                    e.Param.Note.Key = pNote->hostKey;
1614    
1615                    pEngineChannel->ScheduleEventMicroSec(&e, duration + 1);
1616                }
1617            } else if (args->arg(0)->exprType() == INT_ARR_EXPR) {
1618                VMIntArrayExpr* ids = args->arg(0)->asIntArray();
1619                for (vmint i = 0; i < ids->arraySize(); ++i) {
1620                    const ScriptID id = ids->evalIntElement(i);
1621                    if (!id || !id.isNoteID()) continue;
1622    
1623                    NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1624                    if (!pNote) continue;
1625    
1626                    // if fade_out() was called immediately after note was triggered
1627                    // then immediately apply fade out duration to Note object
1628                    if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1629                        pNote->Override.VolumeTime = fDuration;
1630                    } else { // otherwise schedule a "volume time" change with the requested fade out duration ...
1631                        Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1632                        e.Init(); // clear IDs
1633                        e.Type = Event::type_note_synth_param;
1634                        e.Param.NoteSynthParam.NoteID   = id.noteID();
1635                        e.Param.NoteSynthParam.Type     = Event::synth_param_volume_time;
1636                        e.Param.NoteSynthParam.Delta    = fDuration;
1637                        e.Param.NoteSynthParam.Relative = false;
1638    
1639                        pEngineChannel->ScheduleEventMicroSec(&e, 0);
1640                    }
1641                    // now schedule a "volume" change, simply one time slice ahead, with
1642                    // the final fade out volume (0.0)
1643                    {
1644                        Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1645                        e.Init(); // clear IDs
1646                        e.Type = Event::type_note_synth_param;
1647                        e.Param.NoteSynthParam.NoteID   = id.noteID();
1648                        e.Param.NoteSynthParam.Type     = Event::synth_param_volume;
1649                        e.Param.NoteSynthParam.Delta    = 0.f;
1650                        e.Param.NoteSynthParam.Relative = false;
1651    
1652                        // scheduling with 0 delay would also work here, but +1 is more
1653                        // safe regarding potential future implementation changes of the
1654                        // scheduler (see API comments of RTAVLTree::insert())
1655                        pEngineChannel->ScheduleEventMicroSec(&e, 1);
1656                    }
1657                    // and finally if stopping the note was requested after the fade out
1658                    // completed, then schedule to kill the voice after the requested
1659                    // duration
1660                    if (stop) {
1661                        Event e = m_vm->m_event->cause; // copy to get fragment time for "now"
1662                        e.Init(); // clear IDs
1663                        e.Type = Event::type_kill_note;
1664                        e.Param.Note.ID = id.noteID();
1665                        e.Param.Note.Key = pNote->hostKey;
1666                        
1667                        pEngineChannel->ScheduleEventMicroSec(&e, duration + 1);
1668                    }
1669                }
1670            }
1671    
1672            return successResult();
1673        }
1674    
1675        // get_event_par() function
1676    
1677        InstrumentScriptVMFunction_get_event_par::InstrumentScriptVMFunction_get_event_par(InstrumentScriptVM* parent)
1678            : m_vm(parent)
1679        {
1680        }
1681    
1682        VMFnResult* InstrumentScriptVMFunction_get_event_par::exec(VMFnArgs* args) {
1683            AbstractEngineChannel* pEngineChannel =
1684                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
1685    
1686            const ScriptID id = args->arg(0)->asInt()->evalInt();
1687            if (!id) {
1688                wrnMsg("get_event_par(): note ID for argument 1 may not be zero");
1689                return successResult(0);
1690            }
1691            if (!id.isNoteID()) {
1692                wrnMsg("get_event_par(): argument 1 is not a note ID");
1693                return successResult(0);
1694            }
1695    
1696            NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1697            if (!pNote) {
1698                wrnMsg("get_event_par(): no note alive with that note ID of argument 1");
1699                return successResult(0);
1700            }
1701    
1702            const vmint parameter = args->arg(1)->asInt()->evalInt();
1703            switch (parameter) {
1704                case EVENT_PAR_NOTE:
1705                    return successResult(pNote->cause.Param.Note.Key);
1706                case EVENT_PAR_VELOCITY:
1707                    return successResult(pNote->cause.Param.Note.Velocity);
1708                case EVENT_PAR_VOLUME:
1709                    return successResult(
1710                        RTMath::LinRatioToDecibel(pNote->Override.Volume) * 1000.f
1711                    );
1712                case EVENT_PAR_TUNE:
1713                    return successResult(
1714                         RTMath::FreqRatioToCents(pNote->Override.Pitch) * 1000.f
1715                    );
1716                case EVENT_PAR_0:
1717                    return successResult(pNote->userPar[0]);
1718                case EVENT_PAR_1:
1719                    return successResult(pNote->userPar[1]);
1720                case EVENT_PAR_2:
1721                    return successResult(pNote->userPar[2]);
1722                case EVENT_PAR_3:
1723                    return successResult(pNote->userPar[3]);
1724            }
1725    
1726            wrnMsg("get_event_par(): argument 2 is an invalid event parameter");
1727            return successResult(0);
1728        }
1729    
1730        // set_event_par() function
1731    
1732        InstrumentScriptVMFunction_set_event_par::InstrumentScriptVMFunction_set_event_par(InstrumentScriptVM* parent)
1733            : m_vm(parent)
1734        {
1735        }
1736    
1737        VMFnResult* InstrumentScriptVMFunction_set_event_par::exec(VMFnArgs* args) {
1738            AbstractEngineChannel* pEngineChannel =
1739                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
1740    
1741            const ScriptID id = args->arg(0)->asInt()->evalInt();
1742            if (!id) {
1743                wrnMsg("set_event_par(): note ID for argument 1 may not be zero");
1744                return successResult();
1745            }
1746            if (!id.isNoteID()) {
1747                wrnMsg("set_event_par(): argument 1 is not a note ID");
1748                return successResult();
1749            }
1750    
1751            NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1752            if (!pNote) return successResult();
1753    
1754            const vmint parameter = args->arg(1)->asInt()->evalInt();
1755            const vmint value     = args->arg(2)->asInt()->evalInt();
1756    
1757            switch (parameter) {
1758                case EVENT_PAR_NOTE:
1759                    if (value < 0 || value > 127) {
1760                        wrnMsg("set_event_par(): note number of argument 3 is out of range");
1761                        return successResult();
1762                    }
1763                    if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1764                        pNote->cause.Param.Note.Key = value;
1765                        m_vm->m_event->cause.Param.Note.Key = value;
1766                    } else {
1767                        wrnMsg("set_event_par(): note number can only be changed when note is new");
1768                    }
1769                    return successResult();
1770                case EVENT_PAR_VELOCITY:
1771                    if (value < 0 || value > 127) {
1772                        wrnMsg("set_event_par(): velocity of argument 3 is out of range");
1773                        return successResult();
1774                    }
1775                    if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1776                        pNote->cause.Param.Note.Velocity = value;
1777                        m_vm->m_event->cause.Param.Note.Velocity = value;
1778                    } else {
1779                        wrnMsg("set_event_par(): velocity can only be changed when note is new");
1780                    }
1781                    return successResult();
1782                case EVENT_PAR_VOLUME:
1783                    wrnMsg("set_event_par(): changing volume by this function is currently not supported, use change_vol() instead");
1784                    return successResult();
1785                case EVENT_PAR_TUNE:
1786                    wrnMsg("set_event_par(): changing tune by this function is currently not supported, use change_tune() instead");
1787                    return successResult();
1788                case EVENT_PAR_0:
1789                    pNote->userPar[0] = value;
1790                    return successResult();
1791                case EVENT_PAR_1:
1792                    pNote->userPar[1] = value;
1793                    return successResult();
1794                case EVENT_PAR_2:
1795                    pNote->userPar[2] = value;
1796                    return successResult();
1797                case EVENT_PAR_3:
1798                    pNote->userPar[3] = value;
1799                    return successResult();
1800            }
1801    
1802            wrnMsg("set_event_par(): argument 2 is an invalid event parameter");
1803            return successResult();
1804        }
1805    
1806        // change_note() function
1807    
1808        InstrumentScriptVMFunction_change_note::InstrumentScriptVMFunction_change_note(InstrumentScriptVM* parent)
1809        : m_vm(parent)
1810        {
1811        }
1812    
1813        VMFnResult* InstrumentScriptVMFunction_change_note::exec(VMFnArgs* args) {
1814            AbstractEngineChannel* pEngineChannel =
1815                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
1816    
1817            const ScriptID id = args->arg(0)->asInt()->evalInt();
1818            if (!id) {
1819                wrnMsg("change_note(): note ID for argument 1 may not be zero");
1820                return successResult();
1821            }
1822            if (!id.isNoteID()) {
1823                wrnMsg("change_note(): argument 1 is not a note ID");
1824                return successResult();
1825            }
1826    
1827            NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1828            if (!pNote) return successResult();
1829    
1830            const vmint value = args->arg(1)->asInt()->evalInt();
1831            if (value < 0 || value > 127) {
1832                wrnMsg("change_note(): note number of argument 2 is out of range");
1833                return successResult();
1834            }
1835    
1836            if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1837                pNote->cause.Param.Note.Key = value;
1838                m_vm->m_event->cause.Param.Note.Key = value;
1839            } else {
1840                wrnMsg("change_note(): note number can only be changed when note is new");
1841            }
1842    
1843            return successResult();
1844        }
1845    
1846        // change_velo() function
1847    
1848        InstrumentScriptVMFunction_change_velo::InstrumentScriptVMFunction_change_velo(InstrumentScriptVM* parent)
1849        : m_vm(parent)
1850        {
1851        }
1852    
1853        VMFnResult* InstrumentScriptVMFunction_change_velo::exec(VMFnArgs* args) {
1854            AbstractEngineChannel* pEngineChannel =
1855                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
1856    
1857            const ScriptID id = args->arg(0)->asInt()->evalInt();
1858            if (!id) {
1859                wrnMsg("change_velo(): note ID for argument 1 may not be zero");
1860                return successResult();
1861            }
1862            if (!id.isNoteID()) {
1863                wrnMsg("change_velo(): argument 1 is not a note ID");
1864                return successResult();
1865            }
1866    
1867            NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1868            if (!pNote) return successResult();
1869    
1870            const vmint value = args->arg(1)->asInt()->evalInt();
1871            if (value < 0 || value > 127) {
1872                wrnMsg("change_velo(): velocity of argument 2 is out of range");
1873                return successResult();
1874            }
1875    
1876            if (m_vm->m_event->scheduleTime == pNote->triggerSchedTime) {
1877                pNote->cause.Param.Note.Velocity = value;
1878                m_vm->m_event->cause.Param.Note.Velocity = value;
1879            } else {
1880                wrnMsg("change_velo(): velocity can only be changed when note is new");
1881            }
1882    
1883            return successResult();
1884        }
1885    
1886        // change_play_pos() function
1887    
1888        InstrumentScriptVMFunction_change_play_pos::InstrumentScriptVMFunction_change_play_pos(InstrumentScriptVM* parent)
1889        : m_vm(parent)
1890        {
1891        }
1892    
1893        VMFnResult* InstrumentScriptVMFunction_change_play_pos::exec(VMFnArgs* args) {
1894            const ScriptID id = args->arg(0)->asInt()->evalInt();
1895            if (!id) {
1896                wrnMsg("change_play_pos(): note ID for argument 1 may not be zero");
1897                return successResult();
1898            }
1899            if (!id.isNoteID()) {
1900                wrnMsg("change_play_pos(): argument 1 is not a note ID");
1901                return successResult();
1902            }
1903    
1904            const vmint pos = args->arg(1)->asInt()->evalInt();
1905            if (pos < 0) {
1906                wrnMsg("change_play_pos(): playback position of argument 2 may not be negative");
1907                return successResult();
1908            }
1909    
1910            AbstractEngineChannel* pEngineChannel =
1911                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
1912    
1913            NoteBase* pNote = pEngineChannel->pEngine->NoteByID( id.noteID() );
1914            if (!pNote) return successResult();
1915    
1916            pNote->Override.SampleOffset =
1917                (decltype(pNote->Override.SampleOffset)) pos;
1918    
1919            return successResult();
1920      }      }
1921    
1922      // event_status() function      // event_status() function
# Line 1193  namespace LinuxSampler { Line 1944  namespace LinuxSampler {
1944          return successResult(pNote ? EVENT_STATUS_NOTE_QUEUE : EVENT_STATUS_INACTIVE);          return successResult(pNote ? EVENT_STATUS_NOTE_QUEUE : EVENT_STATUS_INACTIVE);
1945      }      }
1946    
1947        // callback_status() function
1948    
1949        InstrumentScriptVMFunction_callback_status::InstrumentScriptVMFunction_callback_status(InstrumentScriptVM* parent)
1950            : m_vm(parent)
1951        {
1952        }
1953    
1954        VMFnResult* InstrumentScriptVMFunction_callback_status::exec(VMFnArgs* args) {
1955            const script_callback_id_t id = args->arg(0)->asInt()->evalInt();
1956            if (!id) {
1957                wrnMsg("callback_status(): callback ID for argument 1 may not be zero");
1958                return successResult();
1959            }
1960    
1961            AbstractEngineChannel* pEngineChannel =
1962                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
1963    
1964            RTList<ScriptEvent>::Iterator itCallback = pEngineChannel->ScriptCallbackByID(id);
1965            if (!itCallback)
1966                return successResult(CALLBACK_STATUS_TERMINATED);
1967    
1968            return successResult(
1969                (m_vm->m_event->execCtx == itCallback->execCtx) ?
1970                    CALLBACK_STATUS_RUNNING : CALLBACK_STATUS_QUEUE
1971            );
1972        }
1973    
1974      // wait() function (overrides core wait() implementation)      // wait() function (overrides core wait() implementation)
1975    
1976      InstrumentScriptVMFunction_wait::InstrumentScriptVMFunction_wait(InstrumentScriptVM* parent)      InstrumentScriptVMFunction_wait::InstrumentScriptVMFunction_wait(InstrumentScriptVM* parent)
# Line 1233  namespace LinuxSampler { Line 2011  namespace LinuxSampler {
2011              (args->argsCount() >= 2) ? (args->arg(1)->asInt()->evalInt() == 1) : false;              (args->argsCount() >= 2) ? (args->arg(1)->asInt()->evalInt() == 1) : false;
2012    
2013          pEngineChannel->ScheduleResumeOfScriptCallback(          pEngineChannel->ScheduleResumeOfScriptCallback(
2014              itCallback, m_vm->m_event->cause.SchedTime(), disableWaitForever              itCallback, m_vm->m_event->scheduleTime, disableWaitForever
2015          );          );
2016    
2017          return successResult();          return successResult();
2018      }      }
2019    
2020        // abort() function
2021    
2022        InstrumentScriptVMFunction_abort::InstrumentScriptVMFunction_abort(InstrumentScriptVM* parent)
2023            : m_vm(parent)
2024        {
2025        }
2026    
2027        VMFnResult* InstrumentScriptVMFunction_abort::exec(VMFnArgs* args) {
2028            const script_callback_id_t id = args->arg(0)->asInt()->evalInt();
2029            if (!id) {
2030                wrnMsg("abort(): callback ID for argument 1 may not be zero");
2031                return successResult();
2032            }
2033    
2034            AbstractEngineChannel* pEngineChannel =
2035                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
2036    
2037            RTList<ScriptEvent>::Iterator itCallback = pEngineChannel->ScriptCallbackByID(id);
2038            if (!itCallback) return successResult(); // ignore if callback is i.e. not alive anymore
2039    
2040            itCallback->execCtx->signalAbort();
2041    
2042            return successResult();
2043        }
2044    
2045        // fork() function
2046    
2047        InstrumentScriptVMFunction_fork::InstrumentScriptVMFunction_fork(InstrumentScriptVM* parent)
2048            : m_vm(parent)
2049        {
2050        }
2051    
2052        VMFnResult* InstrumentScriptVMFunction_fork::exec(VMFnArgs* args) {
2053            // check if this is actually the parent going to fork, or rather one of
2054            // the children which is already forked
2055            if (m_vm->m_event->forkIndex != 0) { // this is the entry point for a child ...
2056                int forkResult = m_vm->m_event->forkIndex;
2057                // reset so that this child may i.e. also call fork() later on
2058                m_vm->m_event->forkIndex = 0;
2059                return successResult(forkResult);
2060            }
2061    
2062            // if we are here, then this is the parent, so we must fork this parent
2063    
2064            const vmint n =
2065                (args->argsCount() >= 1) ? args->arg(0)->asInt()->evalInt() : 1;
2066            const bool bAutoAbort =
2067                (args->argsCount() >= 2) ? args->arg(1)->asInt()->evalInt() : true;
2068    
2069            if (m_vm->m_event->countChildHandlers() + n > MAX_FORK_PER_SCRIPT_HANDLER) {
2070                wrnMsg("fork(): requested amount would exceed allowed limit per event handler");
2071                return successResult(-1);
2072            }
2073    
2074            AbstractEngineChannel* pEngineChannel =
2075                static_cast<AbstractEngineChannel*>(m_vm->m_event->cause.pEngineChannel);
2076    
2077            if (!pEngineChannel->hasFreeScriptCallbacks(n)) {
2078                wrnMsg("fork(): global limit of event handlers exceeded");
2079                return successResult(-1);
2080            }
2081    
2082            for (int iChild = 0; iChild < n; ++iChild) {
2083                RTList<ScriptEvent>::Iterator itChild =
2084                    pEngineChannel->forkScriptCallback(m_vm->m_event, bAutoAbort);
2085                if (!itChild) { // should never happen, otherwise its a bug ...
2086                    errMsg("fork(): internal error while allocating child");
2087                    return errorResult(-1); // terminate script
2088                }
2089                // since both parent, as well all child script execution instances
2090                // all land in this exec() method, the following is (more or less)
2091                // the only feature that lets us distinguish the parent and
2092                // respective children from each other in this exec() method
2093                itChild->forkIndex = iChild + 1;
2094            }
2095    
2096            return successResult(0);
2097        }
2098    
2099  } // namespace LinuxSampler  } // namespace LinuxSampler
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