cmProc4.h/c, cmDspKr.c, cmDspPgmKr.c: Many changes to debug cmScMod. Added _cmDspGSwitchAlloc().

cmProc4.c

 }
 
 // Traverse the least cost path and:
-// 1) Set p->esi to the score location index of the last MIDI note
+// 1) Return, esi, the score location index of the last MIDI note
 // which has a positive match with the score and assign
 // the internal score index to cp->locIdx.
 //
 // 2) Set cmScAlignPath_t.locIdx - index into p->loc[] associated
 // with each path element that is a 'substitute' or an 'insert'.
 //
-// 3) Set p->missCnt: the count of trailing non-positive matches.
-// p->missCnt is eventually used in cmScAlignStep() to track the number
-// of consecutive trailing missed notes.
+// 3) Set *missCnPtr: the count of trailing non-positive matches.
 //
 // i_opt is index into p->loc[] of p->p_opt. 
 unsigned cmScMatchDoSync( cmScMatch* p, unsigned i_opt, cmScMatchMidi_t* midiBuf, unsigned midiN, unsigned* missCntPtr )
   p->cbArg      = cbArg;
   p->mn         = midiWndN;
   p->midiBuf    = cmMemResizeZ(cmScMatchMidi_t,p->midiBuf,p->mn);
+  p->initHopCnt = 50;
   p->stepCnt    = 3;
   p->maxMissCnt = p->stepCnt+1;
   p->rn         = 2 * cmScoreEvtCount(scH);
   _cmScMatchPrintPath(p->mp, p->mp->p_opt, p->begSyncLocIdx, p->midiBuf );
 }
 
-unsigned   cmScMatcherScan( cmScMatcher* p, unsigned bli, unsigned scanCnt )
+unsigned   cmScMatcherScan( cmScMatcher* p, unsigned bli, unsigned hopCnt )
 {
   assert( p->mp != NULL && p->mp->mmn > 0 );
 
     return cmInvalidIdx;
 
   // calc the edit distance from pitchV[] to a sliding score window
-  for(i=0; rc==cmOkRC && (scanCnt==cmInvalidCnt || i<scanCnt); ++i)
+  for(i=0; rc==cmOkRC && (hopCnt==cmInvalidCnt || i<hopCnt); ++i)
   {      
     rc = cmScMatchExec(p->mp, bli + i, p->mp->msn, p->midiBuf, p->mp->mmn, s_opt );
 
 {
   bool     fl  = p->mbi > 0;
   cmRC_t   rc  = cmOkRC;
-  unsigned eli = p->eli;
+  unsigned org_eli = p->eli;
 
   if( scLocIdxPtr != NULL )
     *scLocIdxPtr = cmInvalidIdx;
   // if the MIDI buffer transitioned to full then perform an initial scan sync.
   if( fl && p->mbi == 0 )
   {
-    if( (p->begSyncLocIdx = cmScMatcherScan(p,p->ili,cmInvalidCnt)) == cmInvalidIdx )
+    if( (p->begSyncLocIdx = cmScMatcherScan(p,p->ili,p->initHopCnt)) == cmInvalidIdx )
       rc = cmInvalidArgRC; // signal init. scan sync. fail
     else
     {
       rc = cmScMatcherStep(p);
   }
 
-  if( scLocIdxPtr!=NULL && p->eli != eli )
-    *scLocIdxPtr = p->mp->loc[p->eli].scLocIdx;
+  // if we lost sync 
+  if( p->eli == cmInvalidIdx )
+  {
+    // IF WE LOST SYNC THEN WE BETTER DO SOMETHING - LIKE INCREASE THE SCAN HOPS
+    // ON THE NEXT EVENT.
+    p->eli = org_eli;
+  }
+  else
+  {
+    if( scLocIdxPtr!=NULL && p->eli != org_eli )
+    {
+      //printf("LOC:%i bar:%i\n",p->eli,p->mp->loc[p->eli].barNumb);
+      *scLocIdxPtr = p->mp->loc[p->eli].scLocIdx;
+    }
+  }
 
   return rc;
 }
 
   unsigned i;
   for(i=0; i<p->sn; ++i)
+  {
     p->set[i].value = DBL_MAX;
+    p->set[i].tempo = 0;
+    p->set[i].match_cost = 0;
+  }
   return rc;
 }
 
   // sync the score and MIDI based on the match information
   if( cmScMatchDoSync(p->mp, bli, mb, mn, NULL ) == cmInvalidIdx )
     return;
-  
+
+  if( p->mp->opt_cost != DBL_MAX )
+    sp->match_cost = p->mp->opt_cost / sp->sp->eleCnt;
+
   switch( sp->sp->varId )
   {
     case kEvenVarScId:  
   sp->tempo = r.tempo;
 
   // print the result
-  _cmScMeasPrintResult(p, sp, &r, bli, mb );
+  //_cmScMeasPrintResult(p, sp, &r, bli, mb );
 
   MEAS_MATCH_CNT++;
 }
   return NULL;
 }
 
-cmScModVar_t* _cmScModulatorInsertValue( cmScModulator* p, unsigned varSymId )
+cmScModVar_t* _cmScModSymToVar( cmScModulator* p, unsigned varSymId )
 {
   cmScModVar_t* vp = p->vlist;  
   for(; vp!=NULL; vp=vp->vlink)
     if( varSymId == vp->varSymId )
       return vp;
+  return NULL;
+}
 
-  vp = cmMemAllocZ(cmScModVar_t,1);
-  vp->varSymId = varSymId;
-  vp->vlink    = p->vlist;
-  p->vlist     = vp;
+cmScModVar_t* _cmScModulatorInsertVar( cmScModulator* p, unsigned varSymId, unsigned flags )
+{
+  cmScModVar_t* vp = _cmScModSymToVar(p,varSymId);
+
+  if( vp == NULL )
+  {
+    vp = cmMemAllocZ(cmScModVar_t,1);
+    vp->varSymId = varSymId;
+    vp->outVarId = cmInvalidId;
+    vp->vlink    = p->vlist;
+    p->vlist     = vp;
+  }
+
+  vp->flags    = flags;
+  vp->value    = DBL_MAX;
+  vp->min      = DBL_MAX;
+  vp->max      = DBL_MAX;
+  vp->rate     = DBL_MAX;
+  vp->phase    = 0;
+  vp->entry    = NULL;
+  vp->alink    = NULL;
+  
   return vp;
 }
 
-cmRC_t _cmScModulatorInsertEntry(cmScModulator* p, unsigned idx, unsigned scLocIdx, unsigned modSymId, unsigned varSymId, unsigned typeId, const double* av, unsigned an)
+cmScModEntry_t* _cmScModulatorInsertEntry(cmScModulator* p, unsigned idx, unsigned scLocIdx, unsigned modSymId, unsigned varSymId, unsigned typeId, unsigned paramCnt )
 {
   assert( idx < p->en );
 
-  if( p->modSymId != modSymId )
-    return cmOkRC;
-
   p->earray[idx].scLocIdx = scLocIdx;
   p->earray[idx].typeId   = typeId;
-  p->earray[idx].parray   = an==0 ? NULL : cmMemAllocZ(double,an);
-  p->earray[idx].pn       = an;
-  p->earray[idx].valPtr   = _cmScModulatorInsertValue(p,varSymId);
+  p->earray[idx].varPtr   = _cmScModulatorInsertVar(p,varSymId,0);
 
-  unsigned i;
-  for(i=0; i<an; ++i)
-    p->earray[idx].parray[i] = av[i];
 
-  return cmOkRC;
+  if( p->earray[idx].varPtr->outVarId == cmInvalidIdx )
+    p->earray[idx].varPtr->outVarId = p->outVarCnt++;
+
+  return p->earray + idx;
 }
 
 
 }
  */
 
-  cmRC_t _cmScModulatorParse( cmScModulator* p, cmCtx_t* ctx, cmSymTblH_t stH, const cmChar_t* fn )
+ // Parameter values are found as values of the 'data','min' or 'max' fields.
+ // A parameter value may be either a symbol identifier (mapped to a variable)
+ // or a literal number.  This function determines which form the paramter
+ // value takes and parses it accordingly.
+  cmRC_t _cmScModulatorParseParam( cmScModulator* p, cmSymTblH_t stH, cmJsonNode_t* np, cmScModParam_t* pp )
+{
+  cmRC_t rc = cmOkRC;
+
+  switch( np->typeId )
+  {
+    case kIntTId:
+    case kRealTId:
+      if( cmJsonRealValue(np, &pp->val ) != kOkJsRC )
+      {
+        rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Error parsing in Modulator literal value." );    
+        goto errLabel;
+      }
+      pp->pid = kLiteralModPId;
+      break;
+
+    case kStringTId:
+      {
+        const cmChar_t* label = NULL;
+        if( cmJsonStringValue(np, &label) != kOkJsRC )
+        {
+          rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Error parsing in Modulator symbol label." );    
+          goto errLabel;
+        }
+
+        pp->symId = cmSymTblRegisterSymbol(stH,label);
+        pp->pid   = kSymbolModPId;
+      }
+      break;
+
+    default:
+      rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Parameter value is not a number or identifier." );    
+      goto errLabel;
+      break;
+  }
+
+ errLabel:
+  return rc;
+}
+
+cmRC_t _cmScModulatorParse( cmScModulator* p, cmCtx_t* ctx, cmSymTblH_t stH, const cmChar_t* fn )
 {
   cmRC_t        rc  = cmOkRC;
   cmJsonNode_t* jnp = NULL;
   cmJsonH_t     jsH = cmJsonNullHandle;
-  unsigned      i;
+  unsigned      i   = cmInvalidIdx;
+  unsigned      j   = cmInvalidIdx;
 
   // read the JSON file
   if( cmJsonInitializeFromFile(&jsH, fn, ctx ) != kOkJsRC )
   }
 
   // allocate the entry array
-  p->en     = cmJsonChildCount(jnp);
-  p->earray = cmMemResizeZ(cmScModEntry_t,p->earray,p->en);
+  unsigned entryCnt = cmJsonChildCount(jnp);
+  p->earray         = cmMemResizeZ(cmScModEntry_t,p->earray,entryCnt);
+  p->en             = entryCnt;
 
-  for(i=0; i<p->en; ++i)
+  for(i=0; i<entryCnt; ++i)
   {
-    cmJsRC_t        jsRC;
+    cmJsRC_t                jsRC;
     const char*              errLabelPtr = NULL;
     unsigned                 scLocIdx    = cmInvalidIdx;
     const cmChar_t*          modLabel    = NULL;
       goto errLabel;
     }
     
-    // get a data pointer to the data node
-    if((dnp = cmJsonNodeMemberValue(onp,"data")) == NULL )
-    {
-      rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Synax error in Modulator 'data' record at index %i in file:%s",i,cmStringNullGuard(fn) );
-      goto errLabel;
-    }
-
     unsigned modSymId = cmSymTblRegisterSymbol(stH,modLabel);
     unsigned varSymId = cmSymTblRegisterSymbol(stH,varLabel);
 
-    // the data may be an array of doubles ....
-    if( cmJsonIsArray(dnp) )
+    // the mod entry label must match the modulators label
+    if( p->modSymId != modSymId )
     {
-      unsigned an = cmJsonChildCount(dnp);
-      double   av[an];
-      unsigned j;
+      --p->en;
+        continue;
+    } 
 
-      // read each element in the data array
-      for(j=0; j<an; ++j)
-        if( cmJsonRealValue(cmJsonArrayElement(dnp,j), av+j ) != kOkJsRC )
-        {
-          rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Error parsing in Modulator 'data' record at index %i value index %i in file:%s",i,j,cmStringNullGuard(fn) );    
-          goto errLabel;
-        }
 
-      _cmScModulatorInsertEntry(p,i,scLocIdx,modSymId,varSymId,map->typeId,av,an);
-    }
-    else  // ... or a scalar
+    // get the count of the elmenets in the data array
+    unsigned paramCnt = cmJsonChildCount(onp);
+
+    // fill the entry record and find or create the target var
+    cmScModEntry_t* ep = _cmScModulatorInsertEntry(p,i,scLocIdx,modSymId,varSymId,map->typeId,paramCnt);
+
+    typedef struct
     {
-      double v;
-      if( cmJsonRealValue(dnp,&v) !=  kOkJsRC )
-      {
-        rc = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Error paring in Modulator 'data' on record index %i.",i,cmStringNullGuard(fn));
-        goto errLabel;
-      }
+      const cmChar_t* label;
+      cmScModParam_t* param;
+    } map_t;
 
-      _cmScModulatorInsertEntry(p,i,scLocIdx,modSymId,varSymId,map->typeId,&v,1);
+    // parse the var and parameter records
+    map_t mapArray[] = 
+    {
+      { "min", &ep->min  },
+      { "max", &ep->max  },
+      { "rate",&ep->rate },
+      { "val", &ep->beg },
+      { "end", &ep->end },
+      { "dur", &ep->dur },
+      { NULL, NULL }
+    };
 
-    }
+    unsigned j=0;
+    for(j=0; mapArray[j].param!=NULL; ++j)
+      if((dnp = cmJsonFindValue(jsH,mapArray[j].label, onp, kInvalidTId )) != NULL )
+        if((rc = _cmScModulatorParseParam(p,stH,dnp,mapArray[j].param)) != cmOkRC )
+          goto errLabel;    
   }
 
  errLabel:
 
+  if( rc != cmOkRC )
+    cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Error parsing in Modulator 'data' record at index %i value index %i in file:%s",i,j,cmStringNullGuard(fn) );    
+
+
   // release the JSON tree
   if( cmJsonIsValid(jsH) )
     cmJsonFinalize(&jsH);
   return rc;
 }
 
+cmRC_t  _cmScModulatorReset( cmScModulator* p, cmCtx_t* ctx, unsigned scLocIdx )
+{
+  cmRC_t rc = cmOkRC;
+
+  p->alist     = NULL;
+  p->elist     = NULL;
+  p->nei       = 0;
+  p->outVarCnt = 0;
+  
+  // reload the file
+  if((rc = _cmScModulatorParse(p,ctx,p->stH,p->fn)) != cmOkRC )
+    goto errLabel;
+
+
+  // clear the active flag on all variables
+  cmScModVar_t* vp = p->vlist;
+  for(; vp!=NULL; vp=vp->vlink)
+  {
+    vp->flags = cmClrFlag(vp->flags,kActiveModFl);
+    vp->alink = NULL;
+  }
+
+ errLabel:
+  return rc;
+}
+
 cmRC_t cmScModulatorInit(  cmScModulator* p, cmCtx_t* ctx, cmSymTblH_t stH, double srate, unsigned samplesPerCycle, const cmChar_t* fn, const cmChar_t* modLabel, cmScModCb_t cbFunc, void* cbArg )
 {
   cmRC_t rc;
   if((rc = cmScModulatorFinal(p)) != cmOkRC )
     return rc;
 
+  p->fn              = cmMemAllocStr(fn);
+  p->stH             = stH;
   p->modSymId        = cmSymTblRegisterSymbol(stH,modLabel);
   p->cbFunc          = cbFunc;
   p->cbArg           = cbArg;
   p->samplesPerCycle = samplesPerCycle;
   p->srate           = srate;
+  
 
-  if((rc = _cmScModulatorParse(p,ctx,stH,fn)) != cmOkRC )
-    goto errLabel;
-
- errLabel:
   if( rc != cmOkRC )
     cmScModulatorFinal(p);
   else
-    cmScModulatorReset(p,0);
+    _cmScModulatorReset(p,ctx,0);
 
   return rc;
 }
 
 cmRC_t cmScModulatorFinal( cmScModulator* p )
 {
-  unsigned i;
+  cmMemFree(p->fn);
 
-  // release each value record
+  // release each var record
   cmScModVar_t* vp = p->vlist;
   while( vp!=NULL )
   {
     vp=np;
   }
 
-  // release each entry record
-  for(i=0; i<p->en; ++i)
-    cmMemFree(p->earray[i].parray);
-
   return cmOkRC;
 }
 
-unsigned        cmScModulatorVarCount( cmScModulator* p )
+unsigned        cmScModulatorOutVarCount( cmScModulator* p )
+{ return p->outVarCnt; }
+
+cmScModVar_t* cmScModulatorOutVar( cmScModulator* p, unsigned idx )
 {
-  unsigned n = 0;
-  const cmScModVar_t* vp = p->vlist;
-  for(; vp!=NULL; vp=vp->vlink)
-    ++n;
+  unsigned i;
+  for(i=0; i<p->en; ++i)
+    if( p->earray[i].varPtr->outVarId == idx )
+      return p->earray[i].varPtr;
 
-  return n;
+  return NULL;  
 }
 
-cmScModVar_t* cmScModulatorVar( cmScModulator* p, unsigned idx )
+cmRC_t         cmScModulatorSetValue( cmScModulator* p, unsigned varSymId, double value, double min, double max )
 {
-  unsigned n = 0;
-  cmScModVar_t* vp = p->vlist;
-  for(; vp!=NULL; vp=vp->vlink,++n)
-    if( n == idx )
-      return vp;
+  cmScModVar_t* vp;
+  // if the var does not exist ....
+  if((vp = _cmScModSymToVar(p, varSymId )) == NULL )
+  {
+    // ... then create it
+    vp =  _cmScModulatorInsertVar(p,varSymId,kCalcModFl);
+    assert(vp!=NULL);    
+  }
 
-  assert(0);
-  return NULL;
+  assert( min <= max);
+
+  vp->min   = min;
+  vp->max   = max;  
+  vp->value = value;
+
+  return cmOkRC;
 }
 
-cmRC_t cmScModulatorReset( cmScModulator* p, unsigned scLocIdx )
-{
-  p->alist = NULL;
-  p->nei   = 0;
 
+cmRC_t cmScModulatorReset( cmScModulator* p, cmCtx_t* ctx, unsigned scLocIdx )
+{
+  _cmScModulatorReset(p,ctx,scLocIdx);
   return cmScModulatorExec(p,scLocIdx);
 }
 
-void  _cmScModUnlink( cmScModulator* p, cmScModVar_t* vp, cmScModVar_t* pp )
+void  _cmScModUnlinkActive( cmScModulator* p, cmScModVar_t* vp, cmScModVar_t* pp )
 {
-  if( pp == NULL )
+  // if vp is the first link on the chain
+  if( vp == p->alist )
     p->alist = vp->alink;
-  else
-    pp->alink = vp->alink;  
 
-  vp->flags = 0;
+  // if vp is the last link on the chain
+  if( vp == p->elist )
+    p->elist = pp;
+
+  if( pp != NULL )
+    pp->alink = vp->alink;
+
+  vp->flags = cmClrFlag(vp->flags,kActiveModFl);
   vp->alink = NULL;  
   vp->entry = NULL;
 }
 
-// Type specific variable activation
+// If the requested parameter has a value then return it in *valPtr.
+// If it does not then do nothing. This function applies scaling to RHS values.
+cmRC_t  _cmScModGetParam( cmScModulator* p, const cmScModParam_t* pp, double* valPtr )
+{
+  cmRC_t rc = cmOkRC;
+
+  switch( pp->pid )
+  {
+    case kInvalidModPId:
+      break;
+
+    case kLiteralModPId:
+      *valPtr = pp->val;
+      break;
+
+    case kSymbolModPId:
+      {
+        cmScModVar_t* vp;
+
+        // get a pointer to the parameter variable
+        if((vp = _cmScModSymToVar(p, pp->symId )) == NULL )
+        {
+          rc  = cmCtxRtCondition( &p->obj, cmInvalidArgRC, "Variable '%s' not found.",cmSymTblLabel(p->stH,pp->symId));    
+          goto errLabel;
+        } 
+
+        // if this is not a 'calculated' paramter then scale it here.
+        if( cmIsFlag(vp->flags,kCalcModFl ) && vp->min!=DBL_MAX && vp->max!=DBL_MAX )
+          *valPtr = (vp->value - vp->min)/(vp->max-vp->min);
+        else
+          *valPtr = vp->value;
+      }
+      break;
+
+    default:
+      { assert(0); }
+  }
+
+ errLabel:
+  return rc;
+}
+
+// Type specific variable activation - 
 cmRC_t _cmScModActivate(cmScModulator* p, cmScModEntry_t* ep )
 {
   cmRC_t rc = cmOkRC;
 
-  cmScModVar_t* vp = ep->valPtr;
+  cmScModVar_t* vp = ep->varPtr;
+
+  // optionally update the min/max/rate values in the target var
+  if((rc = _cmScModGetParam(p,&ep->min,&vp->min)) != cmOkRC )
+    goto errLabel;
+
+  if((rc = _cmScModGetParam(p,&ep->max,&vp->max)) != cmOkRC )
+    goto errLabel;
+
+ if((rc = _cmScModGetParam(p,&ep->rate,&vp->rate)) != cmOkRC )
+    goto errLabel;
+
 
   switch( ep->typeId )
   {
       break;
 
     case kSetLineModTId:
-      vp->value     = ep->parray[0];
-      vp->v0        = ep->parray[0];
-      vp->phase     = 0;
-      ep->parray[0] = ep->parray[1];
-      ep->parray[1] = ep->parray[2];
+      _cmScModGetParam(p,&ep->beg,&vp->value); // starting value
+      vp->v0     = vp->value;                  // set initial value
+      vp->phase  = 0;                          // reset phase
       break;
 
     default:
       { assert(0); }
   }
 
+ errLabel:
+  return rc;
+}
+
+// Callback the application with a new variable value.
+cmRC_t  _cmScModExecSendValue( cmScModulator* p, cmScModVar_t* vp )
+{
+  cmRC_t rc     = cmOkRC;
+  bool   sendFl = true;
+  double v      = vp->value;
+
+  // scale the output value - this is equiv to scaling the LHS
+  if( cmIsFlag(vp->flags,kCalcModFl) && vp->min!=DBL_MAX && vp->max!=DBL_MAX )
+    v = vp->min + v * (vp->max - vp->min);
+
+  // if an output rate throttle is in effect ....
+  if( vp->rate!=DBL_MAX && vp->phase!=0 )
+    sendFl = remainder(vp->phase*p->samplesPerCycle, p->srate*vp->rate/1000 ) < p->samplesPerCycle;
+
+  if(sendFl)
+    p->cbFunc(p->cbArg,vp->varSymId,v);
+
   return rc;
 }
 
 // Return true if vp should be deactivated otherwise return false.
 bool  _cmScModExec( cmScModulator* p, cmScModVar_t* vp )
 {
-  bool fl = false;
+  cmRC_t rc = cmOkRC;
+  bool   fl = false;
+
   switch( vp->entry->typeId )
   {
     case kSetModTId:
-      p->cbFunc(p->cbArg,vp->varSymId,vp->entry->parray[0]);
-      fl = true;
+      {
+        if((rc = _cmScModGetParam(p,&vp->entry->beg,&vp->value)) != cmOkRC )
+          goto errLabel;
+        
+        vp->phase = 0; // force the value to be sent
+        fl = true;
+      }
       break;
 
     case kSetLineModTId:
     case kLineModTId:
       {
-        double v1 = vp->entry->parray[0];
-        double v  = vp->value + (v1-vp->v0) * (vp->phase * p->samplesPerCycle) / (p->srate * vp->entry->parray[1]);        
+        double v1, td;
+
+        // get the target value
+        if((rc = _cmScModGetParam(p,&vp->entry->end,&v1)) != cmOkRC) 
+          goto errLabel;
+
+        // get the time duration
+        if((rc = _cmScModGetParam(p,&vp->entry->dur,&td)) != cmOkRC) 
+          goto errLabel;
+
+        double v  = vp->v0 + (v1-vp->v0) * (vp->phase * p->samplesPerCycle) / (p->srate * td);        
 
         if((fl =  (vp->value <= v1 && v >= v1) || (vp->value >= v1 && v <= v1 )) == true )
           v  = v1;
        
-        vp->phase += 1;
         vp->value  = v;
-        p->cbFunc(p->cbArg,vp->varSymId,v);
       }
       break;
 
     default:
       { assert(0); }
   }
+
+  // notify the application that a new variable value has been generated
+  rc = _cmScModExecSendValue(p,vp);
+
+  // increment the phase - after send because send notices when phase is zero
+  vp->phase += 1;
+
+ errLabel:
+  if( rc != cmOkRC )
+    fl = true;
+
   return fl;
 }
 
   cmRC_t rc = cmOkRC;
 
   // trigger entries that have expired since the last call to this function
-  for(; p->nei<p->en && p->earray[p->nei].scLocIdx<=scLocIdx; ++p->nei)
+  for(; p->nei<p->en && (p->earray[p->nei].scLocIdx==-1 || p->earray[p->nei].scLocIdx<=scLocIdx); ++p->nei)
   {
     cmScModEntry_t* ep = p->earray + p->nei;
 
     // if the variable assoc'd with this entry is not on the active list ...
-    if( cmIsFlag(ep->valPtr->flags,kActiveModFl) == false )
+    if( cmIsFlag(ep->varPtr->flags,kActiveModFl) == false )
     {
-      // ... then push it onto the front of the active list ...
-      ep->valPtr->flags = kActiveModFl; 
-      ep->valPtr->alink = p->alist;
-      p->alist          = ep->valPtr;
-    }
+      // ... then append it to the end of the active list ...
+      ep->varPtr->flags |= kActiveModFl; 
+
+      if( p->elist == NULL )
+        p->elist = ep->varPtr;
+      else
+      {
+        p->elist->alink = ep->varPtr;
+        p->elist        = ep->varPtr;
+      }
 
+      p->elist->alink = NULL;
+
+      if( p->alist == NULL )
+        p->alist = ep->varPtr;
+    }
 
     // do type specific activation
     if((trc = _cmScModActivate(p,ep)) != cmOkRC )
       rc = trc;
 
-    ep->valPtr->entry = ep;
+    ep->varPtr->entry = ep;
 
   }
     
   for(; vp!=NULL; vp=vp->alink)
   {
     if( _cmScModExec(p,vp) )
-      _cmScModUnlink(p,vp,pp);
+      _cmScModUnlinkActive(p,vp,pp);
     else
       pp = vp;
   }
 
   return rc;
 }
+
+
+void _cmScModDumpParam( cmScModulator* p, const cmChar_t* label, cmScModParam_t* pp )
+{
+  printf("%s: ",label);
+
+  switch( pp->pid )
+  {
+    case kInvalidModPId:
+      printf("<invalid>");
+      break;
+
+    case kLiteralModPId:
+      if( pp->val == DBL_MAX )
+        printf("<max> ");
+      else
+        printf("%f ",pp->val);
+      break;
+
+    case kSymbolModPId:
+      printf("%s ",cmSymTblLabel(p->stH,pp->symId));
+      break;
+
+    default:
+      { assert(0); }
+  }
+}
+
+void _cmScModDumpVal( cmChar_t* label, double val )
+{
+  printf("%s:",label);
+
+  if( val == DBL_MAX )
+    printf("<max> " );
+  else
+    printf("%f ",val);
+}
+
+void _cmScModDumpVar( cmScModulator* p, const cmScModVar_t* vp )
+{
+    printf("%7s %3i fl:0x%x entry:%p alink:%p ",cmSymTblLabel(p->stH,vp->varSymId),vp->outVarId,vp->flags,vp->entry,vp->alink);
+    _cmScModDumpVal("val",vp->value);
+    _cmScModDumpVal("min",vp->min);
+    _cmScModDumpVal("max",vp->max);
+    _cmScModDumpVal("rate",vp->rate);
+    _cmScModDumpVal("v0",vp->v0);
+}
+
+cmRC_t  cmScModulatorDump(  cmScModulator* p )
+{
+  cmRC_t rc = cmOkRC;
+
+  printf("MOD:\n");
+  printf("nei:%i alist:%p outVarCnt:%i\n",p->nei,p->alist,p->outVarCnt);
+
+  printf("ENTRIES:\n");
+  unsigned i;
+  for(i=0; i<p->en; ++i)
+  {
+    cmScModEntry_t* ep = p->earray + i;
+    printf("%3i %4i %2i %7s ", i, ep->scLocIdx, ep->typeId, cmSymTblLabel(p->stH,ep->varPtr->varSymId));
+    _cmScModDumpParam(p," beg", &ep->beg);
+    _cmScModDumpParam(p," end", &ep->end);
+    _cmScModDumpParam(p," min", &ep->min);
+    _cmScModDumpParam(p," max", &ep->max);
+    _cmScModDumpParam(p," rate",&ep->rate);
+    printf("\n");
+  }
+
+  printf("VARIABLES\n");
+  cmScModVar_t* vp = p->vlist;
+  for(; vp!=NULL; vp=vp->vlink)
+  {
+    _cmScModDumpVar(p,vp);
+    printf("\n");
+  }
+  
+  return rc;
+
+}

cmProc4.h

 extern "C" {
 #endif
 
-
-
 typedef struct
 {
   unsigned     smpIdx;  // time tag sample index for val
    unsigned             ri;       // next avail res[] recd.
 
    double               s_opt;          // 
-   unsigned             missCnt;        // count of consecutive trailing non-matches
+   unsigned             missCnt;        // current count of consecutive trailing non-matches
    unsigned             ili;            // index into loc[] to start scan following reset
    unsigned             eli;            // index into loc[] of the last positive match. 
-   unsigned             mni;            // track the count of MIDI events since the last call to cmScMatcherReset()
-   unsigned             mbi;            // index of oldest MIDI event in midiBuf[]; 0 when the buffer is full.
+   unsigned             mni;            // current count of MIDI events since the last call to cmScMatcherReset()
+   unsigned             mbi;            // index of oldest MIDI event in midiBuf[]; stays at 0 when the buffer is full.
    unsigned             begSyncLocIdx;  // start of score window, in mp->loc[], of best match in previous scan
+   unsigned             initHopCnt;     // max window hops during the initial (when the MIDI buffer fills for first time) sync scan 
    unsigned             stepCnt;        // count of forward/backward score loc's to examine for a match during cmScMatcherStep().
    unsigned             maxMissCnt;     // max. number of consecutive non-matches during step prior to executing a scan.
-   unsigned             scanCnt;        // count of time scan was executed inside cmScMatcherStep()
-
+   unsigned             scanCnt;        // current count of times a resync-scan was executed during cmScMatcherStep()
+ 
    bool                 printFl;
 } cmScMatcher;
 
 // 'scLocIdx' is a score index as used by cmScoreLoc(scH) not into p->mp->loc[].
 cmRC_t       cmScMatcherReset( cmScMatcher* p, unsigned scLocIdx );
 
-// Slide a score window scanCnt times, beginning at 'bli' (an
+// Slide a score window hopCnt times, beginning at 'bli' (an
 // index int p->mp->loc[]) looking for the best match to p->midiBuf[].  
 // The score window contain scWndN (p->mp->mcn-1) score locations.
 // Returns the index into p->mp->loc[] of the start of the best
 // match score window. The score associated
 // with this match is stored in s_opt.
-unsigned   cmScMatcherScan( cmScMatcher* p, unsigned bli, unsigned scanCnt );
+unsigned   cmScMatcherScan( cmScMatcher* p, unsigned bli, unsigned hopCnt );
 
 // Step forward/back by p->stepCnt from p->eli.
 // p->eli must therefore be valid prior to calling this function.
 // If the MIDI note passed by the call results in a successful match then
 // p->eli will be updated to the location in p->mp->loc[] of the latest 
 // match, the MIDI note in p->midiBuf[] associated with this match
-// will be assigned valid locIdx and scLocIdx values, and *scLocIdxPtr
+// will be assigned a valid locIdx and scLocIdx values, and *scLocIdxPtr
 // will be set with the matched scLocIdx of the match.
 // If this call does not result in a successful match *scLocIdxPtr is set
 // to cmInvalidIdx.
   unsigned      eli;   //
 
   double        value; // DBL_MAX if the value has not yet been set
-  double        tempo; // DBL_MAX until set
+  double        tempo; //
+  double        match_cost; // cost of the match to the performance divided by sp->eleCnt
+
 
 } cmScMeasSet_t;
 
 
 enum
 {
-  kActiveModFl = 0x01
+  kActiveModFl = 0x01,  // this variable is on the 'active' list
+  kCalcModFl   = 0x02   // when this variable is used as a parameter it's value must be calculated rather than used directly.
 };
 
 struct cmScModEntry_str;
 
+typedef enum
+{
+  kInvalidModPId,
+  kLiteralModPId,  // this is a literal value
+  kSymbolModPId    // 
+} cmScModPId_t;
+
+typedef struct cmScModParam_str
+{
+  cmScModPId_t pid;     // parameter type: literal or symbol
+  unsigned     symId;   // symbol of external and internal variables
+  double       val;     // value of literals
+} cmScModParam_t;
+
 typedef struct cmScModVar_str
 {
   unsigned                 flags;    // see kXXXModFl flags above.
   unsigned                 varSymId; // variable name 
-  double                   value;    // current value 
+  unsigned                 outVarId; // output var id
+  double                   value;    // current value of this variable
   double                   v0;       // reserved internal variable
-  unsigned                 phase;    // cycle phase since activation
+  unsigned                 phase;    // cycle phase since activation  
+  double                   min;
+  double                   max;
+  double                   rate;     // output rate in milliseconds
   struct cmScModEntry_str* entry;    // last entry assoc'd with this value
   struct cmScModVar_str*   vlink;    // p->vlist link
   struct cmScModVar_str*   alink;    // p->alist link
 } cmScModVar_t;
 
+
+
+// Each entry gives a time tagged location and some parameters 
+// for an algorthm which is used to set/modulate a value.
 typedef struct cmScModEntry_str
 {
-  unsigned        scLocIdx;     // entry start time
-  unsigned        typeId;       // variable type
-  double*         parray;       // parray[pn] - parameter array
-  unsigned        pn;           // parameter count
-  cmScModVar_t*   valPtr;       // target variable 
+  unsigned       scLocIdx;      // entry start time
+  unsigned       typeId;        // variable type
+  cmScModParam_t beg;           // parameter values
+  cmScModParam_t end;           //
+  cmScModParam_t dur;           //
+  cmScModParam_t min;           // min value for this variable
+  cmScModParam_t max;           // max value for this variable
+  cmScModParam_t rate;          // update rate in milliseconds (DBL_MAX to disable)
+  cmScModVar_t*  varPtr;        // target variable 
 } cmScModEntry_t;
 
 typedef void (*cmScModCb_t)( void* cbArg, unsigned varSymId, double value );
 typedef struct
 {
   cmObj           obj;
+  cmChar_t*       fn;           // modulator score file
   unsigned        modSymId;     // modulator name
+  cmSymTblH_t     stH;          // symbol table used by this modulator
   cmScModCb_t     cbFunc;       // active value callback function
   void*           cbArg;        // first arg to cbFunc()
   unsigned        samplesPerCycle; // interval in samples between calls to cmScModulatorExec()
   unsigned        en;           // count 
   cmScModVar_t*   vlist;        // variable list
   cmScModVar_t*   alist;        // active variable list
+  cmScModVar_t*   elist;        // last element on the active list
   unsigned        nei;          // next entry index
+  unsigned        outVarCnt;    // count of unique vars that are targets of entry recds
 } cmScModulator;
 
 
 cmRC_t         cmScModulatorFinal( cmScModulator* p );
 
 // Return count of variables.
-unsigned        cmScModulatorVarCount( cmScModulator* p );
+unsigned       cmScModulatorOutVarCount( cmScModulator* p );
 
 // Return a pointer to the variable at vlist[idx].
-cmScModVar_t* cmScModulatorVar( cmScModulator* p, unsigned idx ); 
+cmScModVar_t*  cmScModulatorOutVar( cmScModulator* p, unsigned idx ); 
+
+cmRC_t         cmScModulatorSetValue( cmScModulator* p, unsigned varSymId, double value, double min, double max );
 
-cmRC_t         cmScModulatorReset( cmScModulator* p, unsigned scLocIdx );
+cmRC_t         cmScModulatorReset( cmScModulator* p, cmCtx_t* ctx, unsigned scLocIdx );
 cmRC_t         cmScModulatorExec(  cmScModulator* p, unsigned scLocIdx );
+cmRC_t         cmScModulatorDump(  cmScModulator* p );
 
 #ifdef __cplusplus
 }

dsp/cmDspKr.c

 #include "cmAudioSys.h"
 #include "cmDspCtx.h"
 #include "cmDspClass.h"
+#include "cmDspStore.h"
 #include "cmDspUi.h"
 #include "cmDspSys.h"
 #include "cmMath.h"
   kUprSlopeKrId,
   kOffsetKrId,
   kInvertKrId,
+  kBypassKrId,
+  kWetKrId,
   kAudioInKrId,
   kAudioOutKrId
 };
     { "uprs",    kUprSlopeKrId,    0, 0,   kInDsvFl  | kDoubleDsvFl | kOptArgDsvFl,   "Upper Slope"},
     { "offs",    kOffsetKrId,      0, 0,   kInDsvFl  | kDoubleDsvFl | kOptArgDsvFl,   "Offset"},
     { "invt",    kInvertKrId,      0, 0,   kInDsvFl  | kUIntDsvFl   | kOptArgDsvFl,   "Invert"},
+    { "bypass",  kBypassKrId,      0, 0,   kInDsvFl  | kBoolDsvFl   | kOptArgDsvFl,   "Bypass enable flag." },
+    { "wet",     kWetKrId,         0, 0,   kInDsvFl  | kSampleDsvFl,                  "Wet mix level."},
     { "in",      kAudioInKrId,     0, 0,   kInDsvFl  | kAudioBufDsvFl, "Audio Input" },
     { "out",     kAudioOutKrId,    0, 1,   kOutDsvFl | kAudioBufDsvFl, "Audio Output" },
     { NULL, 0, 0, 0, 0 }
   cmDspSetDefaultDouble( ctx,&p->inst, kUprSlopeKrId, 0, 0.0 );
   cmDspSetDefaultDouble( ctx,&p->inst, kOffsetKrId,   0, 30.0);
   cmDspSetDefaultUInt(   ctx,&p->inst, kInvertKrId,   0, 0 );
+  cmDspSetDefaultUInt(   ctx,&p->inst, kBypassKrId,   0, 0 );
+  cmDspSetDefaultSample( ctx,&p->inst, kWetKrId,      0, 1.0);
+
   //_cmDspKrCmInit(ctx,p); // initialize the cm library
 
   p->ctx = cmCtxAlloc(NULL,ctx->rpt,ctx->lhH,ctx->stH);
   cmDspRC_t rc           = kOkDspRC;
   unsigned  wndSmpCnt    = cmDspUInt(&p->inst,kWndSmpCntKrId);
   unsigned  hopFact      = cmDspUInt(&p->inst,kHopFactKrId);
-  unsigned  olaWndTypeId = kHannWndId;
+  unsigned  olaWndTypeId =kHannWndId;
 
   cmSpecDistFree(&p->sdp);
+
   p->sdp = cmSpecDistAlloc(p->ctx, NULL, cmDspSamplesPerCycle(ctx), cmDspSampleRate(ctx), wndSmpCnt, hopFact, olaWndTypeId);
 
   assert(p->sdp != NULL );
   unsigned          oSmpCnt = cmDspVarRows(inst,kAudioOutKrId);
   const cmSample_t* sp;
 
+  cmSample_t wet = cmDspSample(inst,kWetKrId);
+
   cmSpecDistExec(p->sdp,ip,iSmpCnt);
   
   if((sp = cmSpecDistOut(p->sdp)) != NULL )
-    cmVOS_Copy(op,oSmpCnt,sp);
-  
+  {
+    cmVOS_MultVVS(op,oSmpCnt,sp,wet);
+  }
+
+  if( wet<1.0 )
+    cmVOS_MultSumVVS(op,oSmpCnt,ip,1.0-wet);
+
   return rc;
 }
 
   cmDspKr_t* p = (cmDspKr_t*)inst;
   cmDspRC_t rc = kOkDspRC;
 
+
   cmDspSetEvent(ctx,inst,evt);
 
   switch( evt->dstVarId )
     case kWndSmpCntKrId:
     case kHopFactKrId:
       _cmDspKrSetup(ctx,p);
+
+      // THIS IS A HACK
+      // WHEN WND OR HOP CHANGE THE RESULTING CHANGES
+      // SHOULD BE ISOLATED IN cmSpecDist() AND THE
+      // CURRENT STATE OF THE PARAMETERS SHOULD NOT BE
+      // LOST - IF THE CHANGES WERE ISOLATED WITHIN PVANL 
+      // AND PVSYN IT MIGHT BE POSSIBLE TO DO WITH 
+      // MINIMAL AUDIO INTERUPTION.
+
+      p->sdp->mode = cmDspUInt(inst,kModeKrId);
+      p->sdp->thresh   = cmDspDouble(inst,kThreshKrId);   
+      p->sdp->uprSlope = cmDspDouble(inst,kUprSlopeKrId); 
+      p->sdp->lwrSlope = cmDspDouble(inst,kLwrSlopeKrId); 
+      p->sdp->offset   = cmDspDouble(inst,kOffsetKrId);   
+      p->sdp->invertFl = cmDspUInt(inst,kInvertKrId)!=0;  
+
       printf("wsn:%i hsn:%i\n",p->sdp->wndSmpCnt,p->sdp->hopSmpCnt);
       break;
 
       
     case kThreshKrId:     
       p->sdp->thresh   = cmDspDouble(inst,kThreshKrId);   
+      //printf("thr:p:%p sdp:%p %f\n",p,p->sdp,p->sdp->thresh);
       break;
 
     case kUprSlopeKrId:   
       p->sdp->uprSlope = cmDspDouble(inst,kUprSlopeKrId); 
-      printf("upr slope:%f\n",p->sdp->uprSlope);
+      //printf("upr slope:%f\n",p->sdp->uprSlope);
       break;
 
     case kLwrSlopeKrId:   
       p->sdp->lwrSlope = cmDspDouble(inst,kLwrSlopeKrId); 
-      printf("upr slope:%f\n",p->sdp->lwrSlope);
+      //printf("upr slope:%f\n",p->sdp->lwrSlope);
       break;
 
     case kOffsetKrId:     
       p->sdp->invertFl = cmDspUInt(inst,kInvertKrId)!=0;  
       break;
 
+    case kWetKrId:
+      break;
+
     default:
       { assert(0); }
   }
   }
 
   if((tlFn =  cmDspStrcz(inst, kFnScId )) !=  NULL )
-    if( cmScoreInitialize(ctx->cmCtx, &p->scH, tlFn, cmDspSampleRate(ctx), dynRefArray, dynRefCnt, _cmDspScoreCb, p ) != kOkTlRC )
+    if( cmScoreInitialize(ctx->cmCtx, &p->scH, tlFn, cmDspSampleRate(ctx), dynRefArray, dynRefCnt, _cmDspScoreCb, p, cmSymTblNullHandle ) != kOkTlRC )
       rc = cmErrMsg(&inst->classPtr->err, kInstResetFailDspRC, "Score file open failed.");
 
  errLabel:
   kOutSfId,
   kDynSfId,
   kEvenSfId,
-  kTempoSfId
+  kTempoSfId,
+  kCostSfId,
+  kSymSfId
 };
 
 cmDspClass_t _cmScFolDC;
     { "dyn",   kDynSfId,      0, 0, kOutDsvFl| kDoubleDsvFl,                  "Dynamic value."},
     { "even",  kEvenSfId,     0, 0, kOutDsvFl| kDoubleDsvFl,                  "Evenness value."},
     { "tempo", kTempoSfId,    0, 0, kOutDsvFl| kDoubleDsvFl,                  "Tempo value."},
+    { "cost",  kCostSfId,     0, 0, kOutDsvFl| kDoubleDsvFl,                  "Match cost value."},
+    { "sym",   kSymSfId,      0, 0, kOutDsvFl| kSymDsvFl,                     "Symbol associated with a global variable which has changed value."},
     { NULL,    0,             0, 0, 0, NULL }
   };
 
   cmDspSetDefaultDouble( ctx, &p->inst,  kDynSfId,        0,     0);
   cmDspSetDefaultDouble( ctx, &p->inst,  kEvenSfId,       0,     0);
   cmDspSetDefaultDouble( ctx, &p->inst,  kTempoSfId,      0,     0);
+  cmDspSetDefaultDouble( ctx, &p->inst,  kCostSfId,       0,     0);
   
   cmDspSetDefaultSymbol(ctx,&p->inst,  kCmdSfId, p->quietSymId );
 
     unsigned i;
     for(i=ap->sfp->smp->vsi; i<ap->sfp->smp->nsi; ++i)
     {
+
       switch( ap->sfp->smp->set[i].sp->varId )
       {
         case kEvenVarScId:
         default:
           { assert(0); }
       }           
+
+      cmDspSetDouble(ap->ctx,inst,kCostSfId,ap->sfp->smp->set[i].match_cost);
+
+
+      // Set the values in the global variable storage
+      cmDspValue_t vv,cv;
+      unsigned     j;
+      cmDsvSetDouble(&vv,ap->sfp->smp->set[i].value);
+      cmDsvSetDouble(&cv,ap->sfp->smp->set[i].match_cost);
+
+      for(j=0; j<ap->sfp->smp->set[i].sp->sectCnt; ++j)
+      {
+        cmDspStoreSetValueViaSym(ap->ctx->dsH, ap->sfp->smp->set[i].sp->symArray[j], &vv );
+        cmDspStoreSetValueViaSym(ap->ctx->dsH, ap->sfp->smp->set[i].sp->costSymArray[j], &cv );
+
+        cmDspSetSymbol(ap->ctx,inst,kSymSfId,ap->sfp->smp->set[i].sp->symArray[j]);
+        cmDspSetSymbol(ap->ctx,inst,kSymSfId,ap->sfp->smp->set[i].sp->costSymArray[j]);
+      }
+
+
     }
 
     /*
   if((fn = cmDspStrcz(inst,kFnSfId)) == NULL || strlen(fn)==0 )
     return cmErrMsg(&inst->classPtr->err, kInvalidArgDspRC, "No score file name supplied.");
 
-  if( cmScoreInitialize(ctx->cmCtx, &p->scH, fn, cmDspSampleRate(ctx), NULL, 0, NULL, NULL ) != kOkScRC )
+  if( cmScoreInitialize(ctx->cmCtx, &p->scH, fn, cmDspSampleRate(ctx), NULL, 0, NULL, NULL, ctx->stH ) != kOkScRC )
     return cmErrMsg(&inst->classPtr->err, kSubSysFailDspRC, "Unable to open the score '%s'.",fn);
 
   if( cmScoreIsValid(p->scH) )
 
 enum
 {
-  kScLocIdxMdId
+  kScLocIdxMdId,
+  kResetIdxMdId,
+  kCmdMdId
 };
 
 cmDspClass_t _cmModulatorDC;
   cmDspInst_t    inst;
   cmScModulator* mp;
   cmDspCtx_t*    tmp_ctx;       // used to temporarily hold the current cmDspCtx during callback
+  cmChar_t*      fn;
+  cmChar_t*      modLabel;
+  unsigned       onSymId;
+  unsigned       offSymId;
 } cmDspScMod_t;
 
 void _cmDspScModCb( void* arg, unsigned varSymId, double value )
 
   cmDspVarArg_t args[] =
   {
-    { "index",   kScLocIdxMdId,0,0, kInDsvFl  | kUIntDsvFl,                "Score follower index input."},
+    { "index",   kScLocIdxMdId, 0,0, kInDsvFl  | kUIntDsvFl,  "Score follower index input."},
+    { "reset",   kResetIdxMdId, 0,0, kInDsvFl  | kUIntDsvFl | kOptArgDsvFl, "Reset the modulator and go to the score index."},
+    { "cmd",     kCmdMdId,      0,0, kInDsvFl  | kSymDsvFl  | kOptArgDsvFl, "on | off."},
     { NULL, 0, 0, 0, 0 }
   };
 
   const cmChar_t* fn       = va_arg(vl1,const cmChar_t*);
   const cmChar_t* modLabel = va_arg(vl1,const cmChar_t*);
 
+  va_end(vl1);
+
   // validate the file
   if( fn==NULL || cmFsIsFile(fn)==false )
   {
     cmDspClassErr(ctx,classPtr,kInvalidArgDspRC,"The internal modulator object initialization failed.");
     return NULL;
   }
-  unsigned      fixArgCnt = 1;
-  unsigned      argCnt    = fixArgCnt + cmScModulatorVarCount(mp);
+  unsigned      fixArgCnt = sizeof(args)/sizeof(args[0]) - 1;
+  unsigned      argCnt    = fixArgCnt + cmScModulatorOutVarCount(mp);
   cmDspVarArg_t a[ argCnt+1 ];
   unsigned      i;
 
   for(i=fixArgCnt; i<argCnt; ++i)
   {
     unsigned            varIdx    = i - fixArgCnt;
-    const cmScModVar_t* vp        = cmScModulatorVar(mp,varIdx);
+    const cmScModVar_t* vp        = cmScModulatorOutVar(mp,varIdx);
     const cmChar_t*     label     = cmSymTblLabel( ctx->stH, vp->varSymId );
     const cmChar_t*     docStr    = cmTsPrintfS("Variable output for %s",label);
 
   }
   cmDspArgSetupNull(a+argCnt); // set terminating arg. flags
 
-  cmDspScMod_t* p = cmDspInstAlloc(cmDspScMod_t,ctx,classPtr,a,instSymId,id,storeSymId,0,vl);
+  cmDspScMod_t* p = cmDspInstAlloc(cmDspScMod_t,ctx,classPtr,a,instSymId,id,storeSymId,va_cnt,vl);
+
+
+  p->fn       = cmMemAllocStr(fn);
+  p->modLabel = cmMemAllocStr(modLabel);
+  p->mp       = mp;
+  p->onSymId  = cmSymTblId(ctx->stH,"on");
+  p->offSymId = cmSymTblId(ctx->stH,"off");
 
-  p->mp = mp;
   mp->cbArg = p;  // set the modulator callback arg
 
-  cmDspSetDefaultUInt(ctx,&p->inst,kScLocIdxMdId,0,0);
+  
 
+  cmDspSetDefaultUInt(ctx,&p->inst,kScLocIdxMdId,0,0);
+  cmDspSetDefaultSymbol(ctx,&p->inst,kCmdMdId,p->offSymId);
   return &p->inst;
 }
 
   cmDspRC_t        rc = kOkDspRC;
   cmDspScMod_t* p = (cmDspScMod_t*)inst;
 
+
   if( cmScModulatorFree(&p->mp) != kOkTlRC )
     return cmErrMsg(&inst->classPtr->err, kInstFinalFailDspRC, "Modulator release failed.");
 
+  cmMemFree(p->fn);
+  cmMemFree(p->modLabel);
   return rc;
 }
 
 
 cmDspRC_t _cmDspScModRecv(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDspEvt_t* evt )
 {
+  cmDspScMod_t* p  = (cmDspScMod_t*)inst;
 
   cmDspSetEvent(ctx,inst,evt);
+  
+  switch( evt->dstVarId )
+  {
+    case kResetIdxMdId:
+      cmDspSetUInt(ctx,inst,kScLocIdxMdId,cmDspUInt(inst,kResetIdxMdId));
+      break;
+
+    case kCmdMdId:
+      {
+        unsigned symId = cmDspSymbol(inst,kCmdMdId);
+        if( symId == p->onSymId )
+          cmScModulatorReset(p->mp, ctx->cmCtx, cmDspUInt(inst,kScLocIdxMdId));
+      }
+      break;
+
+  }
 
   return kOkDspRC;
 }
   cmDspRC_t         rc = kOkDspRC;
   cmDspScMod_t* p  = (cmDspScMod_t*)inst;
   
-  p->tmp_ctx = ctx;
-  cmScModulatorExec(p->mp,cmDspUInt(inst,kScLocIdxMdId));
+  if( cmDspSymbol(inst,kCmdMdId) != p->offSymId )
+  {
+    p->tmp_ctx = ctx;
+    cmScModulatorExec(p->mp,cmDspUInt(inst,kScLocIdxMdId));
+  }
+
   return rc;
 }
 
 
   return &_cmModulatorDC;
 }
+
+//==========================================================================================================================================
+
+enum
+{
+  kInChCntGsId,
+  kOutGroupCntGsId,
+  kGroupSelIdxGsId,
+  kBaseInFloatGsId
+};
+
+cmDspClass_t _cmGSwitchDC;
+
+typedef struct
+{
+  cmDspInst_t    inst;
+
+  unsigned iChCnt;
+  unsigned oGroupCnt;
+
+  unsigned baseInFloatGsId;
+  unsigned baseInSymGsId;
+  unsigned baseInBoolGsId;
+
+  unsigned baseOutFloatGsId;
+  unsigned baseOutSymGsId;
+  unsigned baseOutBoolGsId;
+
+} cmDspGSwitch_t;
+
+
+cmDspInst_t*  _cmDspGSwitchAlloc(cmDspCtx_t* ctx, cmDspClass_t* classPtr, unsigned storeSymId, unsigned instSymId, unsigned id, unsigned va_cnt, va_list vl )
+{
+  va_list vl1;
+  va_copy(vl1,vl);
+
+  cmDspVarArg_t args[] =
+  {
+    { "ichs",   kInChCntGsId,     0,0,            kUIntDsvFl | kReqArgDsvFl, "Input channel count."},
+    { "ochs",   kOutGroupCntGsId, 0,0,            kUIntDsvFl | kReqArgDsvFl, "Output group count."},
+    { "sel",    kGroupSelIdxGsId, 0,0, kInDsvFl | kUIntDsvFl,                "Group select index."},
+    { NULL, 0, 0, 0, 0 }
+  };
+
+  // validate the argument count
+  if( va_cnt != 2 )
+  {
+    cmDspClassErr(ctx,classPtr,kInvalidArgDspRC,"The GSwitch requires at least two arguments.");
+    return NULL;
+  }    
+
+  // read the input ch and output group count
+  unsigned iChCnt     = va_arg(vl1,unsigned);
+  unsigned oGroupCnt  = va_arg(vl1,unsigned);
+
+  va_end(vl1);
+  
+  // validate the channel counts
+  if( iChCnt == 0 || oGroupCnt==0 )
+  {
+    cmDspClassErr(ctx,classPtr,kInvalidArgDspRC,"The GSwitch input channel count and group count must be greater than zero.");
+    return NULL;
+  }
+
+  unsigned typeCnt          = 3; // i.e. float,sym,bool
+  unsigned baseInFloatGsId  = kBaseInFloatGsId;
+  unsigned baseInSymGsId    = baseInFloatGsId  + iChCnt;
+  unsigned baseInBoolGsId   = baseInSymGsId    + iChCnt;
+  unsigned baseOutFloatGsId = baseInBoolGsId   + iChCnt;
+  unsigned baseOutSymGsId   = baseOutFloatGsId + (iChCnt * oGroupCnt);
+  unsigned baseOutBoolGsId  = baseOutSymGsId   + (iChCnt * oGroupCnt);
+
+  unsigned      fixArgCnt        = 3;
+  unsigned      varArgCnt        = (iChCnt * typeCnt) + (iChCnt * typeCnt * oGroupCnt);
+  unsigned      argCnt           = fixArgCnt + varArgCnt;
+  cmDspVarArg_t a[ argCnt+1 ];
+  unsigned      i;
+
+  cmDspArgCopy( a, argCnt, 0, args, fixArgCnt );
+  cmDspArgSetupN( ctx, a, argCnt, baseInFloatGsId, iChCnt, "f-in", baseInFloatGsId, 0, 0, kInDsvFl | kDoubleDsvFl, "Float input");
+  cmDspArgSetupN( ctx, a, argCnt, baseInSymGsId,   iChCnt, "s-in", baseInSymGsId,   0, 0, kInDsvFl | kSymDsvFl,    "Symbol input");
+  cmDspArgSetupN( ctx, a, argCnt, baseInBoolGsId,  iChCnt, "b-in", baseInBoolGsId,  0, 0, kInDsvFl | kBoolDsvFl,   "Bool input");
+
+  unsigned labelCharCnt = 63;
+  cmChar_t label[labelCharCnt+1];
+  label[labelCharCnt] = 0;
+
+  unsigned gsid = baseOutFloatGsId;
+  for(i=0; i<oGroupCnt; ++i, gsid+=iChCnt)
+  {
+    snprintf(label,labelCharCnt,"f-out-%i",i);
+    cmDspArgSetupN( ctx, a, argCnt, gsid, iChCnt, label, gsid, 0, 0, kInDsvFl | kDoubleDsvFl, "Float output");
+  }
+
+  gsid = baseOutSymGsId;
+  for(i=0; i<oGroupCnt; ++i, gsid+=iChCnt)
+  {
+    snprintf(label,labelCharCnt,"s-out-%i",i);
+    cmDspArgSetupN( ctx, a, argCnt, gsid, iChCnt, label, gsid, 0, 0, kInDsvFl | kSymDsvFl, "Symbol output");
+  }
+
+  gsid = baseOutBoolGsId;
+  for(i=0; i<oGroupCnt; ++i, gsid+=iChCnt)
+  {
+    snprintf(label,labelCharCnt,"b-out-%i",i);
+    cmDspArgSetupN( ctx,a, argCnt, gsid, iChCnt, label, gsid, 0, 0, kInDsvFl | kBoolDsvFl, "Bool output");
+  }
+
+  cmDspArgSetupNull(a+argCnt); // set terminating arg. flags  
+
+  cmDspGSwitch_t* p = cmDspInstAlloc(cmDspGSwitch_t,ctx,classPtr,a,instSymId,id,storeSymId,va_cnt,vl);
+
+  p->iChCnt           = iChCnt;
+  p->oGroupCnt        = oGroupCnt;
+  p->baseInFloatGsId  = baseInFloatGsId;
+  p->baseInSymGsId    = baseInSymGsId;
+  p->baseInBoolGsId   = baseInBoolGsId;
+  p->baseOutFloatGsId = baseOutFloatGsId;
+  p->baseOutSymGsId   = baseOutSymGsId;
+  p->baseOutBoolGsId  = baseOutBoolGsId;
+
+  cmDspSetDefaultUInt(ctx,&p->inst,kGroupSelIdxGsId,0,0);
+
+  return &p->inst;
+}
+
+cmDspRC_t _cmDspGSwitchReset(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDspEvt_t* evt )
+{
+  cmDspRC_t       rc          = kOkDspRC;
+
+  cmDspApplyAllDefaults(ctx,inst);
+
+  return rc;
+}
+
+cmDspRC_t _cmDspGSwitchRecv(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDspEvt_t* evt )
+{
+  cmDspRC_t       rc = kOkDspRC;
+  cmDspGSwitch_t* p  = (cmDspGSwitch_t*)inst;
+
+  // if this is the group selector
+  if( evt->dstVarId == kGroupSelIdxGsId )
+  {
+    unsigned idx;
+    if( (idx = cmDsvGetUInt(evt->valuePtr)) > p->oGroupCnt )
+      cmDspInstErr(ctx,inst,kInvalidArgDspRC,"The GSwitch group select index %i is out of range %i.",idx,p->oGroupCnt);
+    else
+      cmDspSetEvent(ctx,inst,evt);
+    return rc;
+  }
+
+  // get the group selector
+  unsigned groupIdx = cmDspUInt(inst,kGroupSelIdxGsId);
+  assert( groupIdx < p->oGroupCnt);
+
+
+  // if this is a float input
+  if( p->baseInFloatGsId <= evt->dstVarId && evt->dstVarId < p->baseInFloatGsId + p->iChCnt )
+  {
+    unsigned outVarId = p->baseOutFloatGsId + (groupIdx * p->iChCnt) + (evt->dstVarId - p->baseInFloatGsId);
+    cmDspValueSet(ctx, inst, outVarId, evt->valuePtr, 0 );
+    return rc;
+  }
+
+  // if this is a symbol input
+  if( p->baseInSymGsId <= evt->dstVarId && evt->dstVarId < p->baseInSymGsId + p->iChCnt )
+  {
+    unsigned outVarId = p->baseOutSymGsId + (groupIdx * p->iChCnt) + (evt->dstVarId - p->baseInSymGsId);
+    cmDspValueSet(ctx, inst, outVarId, evt->valuePtr, 0 );    
+    return rc;
+  }
+
+  // if this is a bool input
+  if( p->baseInBoolGsId <= evt->dstVarId && evt->dstVarId < p->baseInBoolGsId + p->iChCnt )
+  {
+    unsigned outVarId = p->baseOutBoolGsId + (groupIdx * p->iChCnt) + (evt->dstVarId - p->baseInBoolGsId);
+    cmDspValueSet(ctx, inst, outVarId, evt->valuePtr, 0 );        
+    return rc;
+  }
+
+  return rc;
+}
+
+
+struct cmDspClass_str* cmGSwitchClassCons( cmDspCtx_t* ctx )
+{
+  cmDspClassSetup(&_cmGSwitchDC,ctx,"GSwitch",
+    NULL,
+    _cmDspGSwitchAlloc,
+    NULL,
+    _cmDspGSwitchReset,
+    NULL,
+    _cmDspGSwitchRecv,
+    NULL,NULL,
+    "Ganged switch.");
+
+  return &_cmGSwitchDC;
+}

dsp/cmDspPgmKr.c

   cmCtx_t*        cmCtx      = cmDspSysPgmCtx(h);
   cmErr_t         err;
   krRsrc_t        r;
-  unsigned        wtLoopCnt  = 1;                           // 1=play once (-1=loop forever)
+  unsigned        wtLoopCnt  = 1;                            // 1=play once (-1=loop forever)
   unsigned        wtInitMode = 0;                            // initial wt mode is 'silence'
   unsigned        wtSmpCnt   = floor(cmDspSysSampleRate(h)); // wt length == srate
   int             krWndSmpCnt = 2048;
   int             krHopFact   = 4;
+  unsigned        xfadOutChCnt = 2;
+  double          xfadMs      = 200;
+  bool            xfadAllOnFl  = true;
 
   memset(&r,0,sizeof(r));
   cmErrSetup(&err,&cmCtx->rpt,"Kr Timeline");
   cmDspInst_t* pts  = cmDspSysAllocInst(h,"PortToSym",   NULL,  2, "on", "off" );
   cmDspInst_t* mfp  = cmDspSysAllocInst(h,"MidiFilePlay",NULL,  0 );
   cmDspInst_t* sfp  = cmDspSysAllocInst(h,"ScFol",       NULL,  1, r.scFn );
+  cmDspInst_t* modp = cmDspSysAllocInst(h,"ScMod",       NULL,  2, r.modFn, "m1" );
   cmDspInst_t* kr0p = cmDspSysAllocInst(h,"Kr",          NULL,   2, krWndSmpCnt, krHopFact );
   cmDspInst_t* kr1p = cmDspSysAllocInst(h,"Kr",          NULL,   2, krWndSmpCnt, krHopFact );
+  cmDspInst_t* xfad = cmDspSysAllocInst(h,"Xfader",      NULL,   3, xfadOutChCnt, xfadMs, xfadAllOnFl );
+ 
 
   cmDspInst_t* ao0p = cmDspSysAllocInst(h,"AudioOut",    NULL,  1, 0 );
   cmDspInst_t* ao1p = cmDspSysAllocInst(h,"AudioOut",    NULL,  1, 1 );
+  //cmDspInst_t* af0p = cmDspSysAllocInst(h,"AudioFileOut",NULL,  2, "/home/kevin/temp/debug0.wav",1);
 
   cmDspSysNewPage(h,"Controls");
   cmDspInst_t* onb  = cmDspSysAllocInst(h,"Button", "start",  2, kButtonDuiId, 1.0 );
   cmDspInst_t* ls0p = cmDspSysAllocInst(h,"Scalar", "lwr slope", 5, kNumberDuiId, 0.3,  10.0, 0.01,  2.0 );
   cmDspInst_t* of0p = cmDspSysAllocInst(h,"Scalar", "offset",    5, kNumberDuiId, 0.0, 100.0, 0.01, 30.0 );
   cmDspInst_t* iv0p = cmDspSysAllocInst(h,"Scalar", "invert",    5, kNumberDuiId, 0.0,   1.0, 1.0,   0.0 );  
+  cmDspInst_t* wet0  = cmDspSysAllocInst(h,"Scalar", "wet",      5, kNumberDuiId, 0.0,    1.0,0.001,  1.0 );  
   cmDspSysNewColumn(h,0);
 
   //cmDspInst_t* al1p = cmDspSysAllocInst(h,"MsgList","audFiles", 2, "audFiles",NULL);
   cmDspInst_t* ls1p = cmDspSysAllocInst(h,"Scalar", "lwr slope1", 5, kNumberDuiId, 0.3,  10.0, 0.01,  2.0 );
   cmDspInst_t* of1p = cmDspSysAllocInst(h,"Scalar", "offset1",    5, kNumberDuiId, 0.0, 100.0, 0.01, 30.0 );
   cmDspInst_t* iv1p = cmDspSysAllocInst(h,"Scalar", "invert1",    5, kNumberDuiId, 0.0,   1.0, 1.0,   0.0 );  
+  cmDspInst_t* wet1  = cmDspSysAllocInst(h,"Scalar", "wet1",      5, kNumberDuiId, 0.0,    1.0,0.001,  1.0 );  
+
+  cmDspSysNewColumn(h,0);
+  cmDspInst_t* ogain = cmDspSysAllocInst(h,"Scalar", "Out Gain",   5, kNumberDuiId, 0.0,   10.0,0.01,   3.0 );  
+  //cmDspInst_t* reload = cmDspSysAllocInst(h,"Button", "Reload",     2, kButtonDuiId, 0.0 );
 
 
   if((rc = cmDspSysLastRC(h)) != kOkDspRC )
     return rc;
 
   // phasor->wt->aout
-  cmDspSysConnectAudio(h, php, "out", wtp,  "phs" );   // phs -> wt
-  //cmDspSysConnectAudio(h, wtp, "out", kr0p,  "in"  );  // wt->kr
-  //cmDspSysConnectAudio(h, wtp, "out", kr1p,  "in"  );
-  //cmDspSysConnectAudio(h, kr0p, "out", ao0p, "in");  // kr->aout- 0
-  //cmDspSysConnectAudio(h, kr1p, "out", ao1p, "in"); 
-  cmDspSysConnectAudio(h, wtp, "out", ao0p, "in"  );   // wt  -> aout0
-  cmDspSysConnectAudio(h, wtp, "out", ao1p, "in" );    // wt  -> aout1
+  cmDspSysConnectAudio(h, php,  "out", wtp,  "phs" );   // phs -> wt
+
+  if(1)
+  {
+    cmDspSysConnectAudio(h, wtp,  "out", kr0p,  "in"  );  // wt->kr
+    cmDspSysConnectAudio(h, wtp,  "out", kr1p,  "in"  );
+    cmDspSysConnectAudio(h, kr0p, "out", xfad, "in-0");     // kr->aout
+    cmDspSysConnectAudio(h, kr1p, "out", xfad, "in-1");
+    cmDspSysConnectAudio(h, xfad, "out-0", ao0p, "in");     // kr->aout
+    cmDspSysConnectAudio(h, xfad, "out-1", ao1p, "in");
  
+  }
+  else
+  {
+    cmDspSysConnectAudio(h, wtp, "out", ao0p, "in"  );   // wt  -> aout0
+    cmDspSysConnectAudio(h, wtp, "out", ao1p, "in" );    // wt  -> aout1
+    //cmDspSysConnectAudio(h, wtp, "out", af0p, "in0" );   // wt  -> audio file
+  }
+
+  // wave-table to time-line cursor
   cmDspSysInstallCb(   h, wtp, "fidx",tlp,  "curs", NULL); 
 
   // start connections
   cmDspSysInstallCb(h, onb, "sym", mfp, "sel",   NULL );
   cmDspSysInstallCb(h, onb, "sym", pts, "on",    NULL );
   cmDspSysInstallCb(h, pts, "on",  wtp, "cmd",   NULL );
+  cmDspSysInstallCb(h, pts, "on",  modp,"cmd",   NULL );
 
   // stop connections
   cmDspSysInstallCb(h, wtp,  "done",offb,"in",  NULL ); // 'done' from WT simulates pressing Stop btn.
   cmDspSysInstallCb(h, offb, "sym", mfp, "sel", NULL ); 
   cmDspSysInstallCb(h, offb, "sym", pts, "off", NULL );
   cmDspSysInstallCb(h, pts,  "off", wtp, "cmd", NULL );
+  cmDspSysInstallCb(h, pts,  "off", modp,"cmd", NULL );
 
   // time-line to wave-table selection 
   cmDspSysInstallCb(h, tlp, "absi", wtp, "beg", NULL );  
   cmDspSysInstallCb(h, tlp, "mbsi", mfp, "bsi",   NULL );
   cmDspSysInstallCb(h, tlp, "mesi", mfp, "esi",   NULL );
   cmDspSysInstallCb(h, tlp, "mfn",  mfp, "fn",    NULL );
-
   // score to score follower - to set initial search location
   cmDspSysInstallCb(h, scp, "sel",    sfp, "index",  NULL );
+  //cmDspSysInstallCb(h, scp, "sel",    prv, "in", NULL );
+  cmDspSysInstallCb(h, scp, "sel",    modp,"reset", NULL );
   
+  //cmDspSysInstallCb(h, reload,"out",  modp, "reload", NULL );
 
-  // MIDI file player to score-follower and score - the order of connections is the same
-  // as the msg transmision order from MFP
-  //cmDspSysInstallCb(h, mfp, "smpidx", scp, "smpidx", NULL );
-  cmDspSysInstallCb(h, mfp, "smpidx", sfp, "smpidx", NULL );
-  //cmDspSysInstallCb(h, mfp, "d1",     scp, "d1",     NULL );
-  cmDspSysInstallCb(h, mfp, "d1",     sfp, "d1",     NULL );
-  //cmDspSysInstallCb(h, mfp, "d0",     scp, "d0",     NULL );
-  cmDspSysInstallCb(h, mfp, "d0",     sfp, "d0",     NULL );
-  //cmDspSysInstallCb(h, mfp, "status", scp, "status", NULL );
-  cmDspSysInstallCb(h, mfp, "status", sfp, "status", NULL );
 
+  // MIDI file play er to score follower
+  if(1)
+  {
+    cmDspSysInstallCb(h, mfp, "smpidx", sfp, "smpidx", NULL );
+    cmDspSysInstallCb(h, mfp, "d1",     sfp, "d1",     NULL );
+    cmDspSysInstallCb(h, mfp, "d0",     sfp, "d0",     NULL );
+    cmDspSysInstallCb(h, mfp, "status", sfp, "status", NULL );
+  }
 
-  // score follower to score
-  //cmDspSysInstallCb(h, sfp, "out",  modp, "index", NULL );
+  // score follower to modulator and printers
+  cmDspSysInstallCb(h, sfp, "out",  modp, "index", NULL );
+  cmDspSysInstallCb(h, sfp, "out",  prp, "in",  NULL );
+  cmDspSysInstallCb(h, sfp, "even", pre, "in", NULL );
+  cmDspSysInstallCb(h, sfp, "dyn",  prd, "in", NULL );
+  cmDspSysInstallCb(h, sfp, "tempo",prt, "in", NULL );
+
+  cmDspSysInstallCb(h, prtb, "sym", sfp, "cmd", NULL );
+  cmDspSysInstallCb(h, qtb,  "sym", sfp, "cmd", NULL );
 
 
   cmDspSysInstallCb(h, ws0p, "out", kr0p, "wndn", NULL );   // wndSmpCnt->kr
   cmDspSysInstallCb(h, us0p, "val", kr0p, "uprs", NULL );   // uprSlope->kr
   cmDspSysInstallCb(h, of0p, "val", kr0p, "offs", NULL );   // offset->kr
   cmDspSysInstallCb(h, iv0p, "val", kr0p, "invt", NULL );   // invert->kr
+  cmDspSysInstallCb(h, wet0, "val", kr0p, "wet", NULL );    //  wet->kr
 
   cmDspSysInstallCb(h, ws1p, "out", kr1p, "wndn", NULL );   // wndSmpCnt->kr
   cmDspSysInstallCb(h, hf1p, "out", kr1p, "hopf", NULL );   // hopFact->kr
   cmDspSysInstallCb(h, us1p, "val", kr1p, "uprs", NULL );   // uprSlope->kr
   cmDspSysInstallCb(h, of1p, "val", kr1p, "offs", NULL );   // offset->kr
   cmDspSysInstallCb(h, iv1p, "val", kr1p, "invt", NULL );   // invert->kr
+  cmDspSysInstallCb(h, wet1, "val", kr1p, "wet", NULL );    //  wet->kr
+
+  cmDspSysInstallCb(h, ogain, "val", ao0p, "gain", NULL );   // output gain control
+  cmDspSysInstallCb(h, ogain, "val", ao1p, "gain", NULL );
 
   // Printer connections
   cmDspSysInstallCb(h, tlp, "afn",  prp, "in",  NULL );
   cmDspSysInstallCb(h, tlp, "mfn",  prp, "in",  NULL );
   cmDspSysInstallCb(h, tlp, "sel",  prp, "in",  NULL );
-  cmDspSysInstallCb(h, sfp, "out",  prp, "in",     NULL );
-
-  cmDspSysInstallCb(h, sfp, "even", pre, "in", NULL );
-  cmDspSysInstallCb(h, sfp, "dyn",  prd, "in", NULL );
-  cmDspSysInstallCb(h, sfp, "tempo",prt, "in", NULL );
-  //cmDspSysInstallCb(h, modp,"v0",   prv, "in", NULL );
-  //cmDspSysInstallCb(h, modp,"v1",   prv, "in", NULL );
-  //cmDspSysInstallCb(h, modp,"v2",   prv, "in", NULL );
 
+  cmDspSysInstallCb(h, modp, "mod0", md0p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "win0", kr0p, "wndn",NULL );
+  cmDspSysInstallCb(h, modp, "thr0", th0p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "upr0", us0p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "lwr0", ls0p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "off0", of0p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "inv0", iv0p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "wet0", wet0, "val", NULL );
+  cmDspSysInstallCb(h, modp, "xf0", xfad, "gate-0", NULL );
+
+  cmDspSysInstallCb(h, modp, "mod1", md1p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "win1", kr1p, "wndn",NULL );
+  cmDspSysInstallCb(h, modp, "thr1", th1p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "upr1", us1p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "lwr1", ls1p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "off1", of1p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "inv1", iv1p, "val", NULL );
+  cmDspSysInstallCb(h, modp, "wet1", wet1, "val", NULL );
+  cmDspSysInstallCb(h, modp, "xf1", xfad, "gate-1", NULL );
 
-  cmDspSysInstallCb(h, prtb, "sym", sfp, "cmd", NULL );
-  cmDspSysInstallCb(h, qtb,  "sym", sfp, "cmd", NULL );
   
   return rc;
 }
+
+cmDspRC_t _cmDspSysPgm_Switcher(cmDspSysH_t h, void** userPtrPtr )
+{
+  cmDspRC_t rc = kOkDspRC;
+
+  const char*     fn0          = "media/audio/20110723-Kriesberg/Audio Files/Piano 3_01.wav";
+  const cmChar_t* fn           = cmFsMakeFn(cmFsUserDir(),fn0,NULL,NULL );
+
+  bool   bypassFl   = false;
+  double inGain     = 1.0;
+  double dsrate     = 96000.0;
+  double bits       = 24.0;
+  bool   rectifyFl  = false;
+  bool   fullRectFl = false;
+  double clipDb     = -10.0;
+
+  double cfMinHz    = 20.0;
+  double cfHz       = 1000.0;
+  double cfAlpha    = 0.9;
+  bool   cfFbFl     = true;
+  bool   cfBypassFl = false;
+
+  unsigned outChCnt = 2;
+  double   xfadeMs  = 250;
+
+
+  cmDspInst_t* gsw = cmDspSysAllocInst(h,"GSwitch", NULL, 2, 12,2 );
+
+  cmDspInst_t* ofp =  cmDspSysAllocInst(h,"Scalar", "Offset",  5, kNumberDuiId, 0.0,  cmDspSysSampleRate(h)*600.0, 1.0,  6900000.0);
+  cmDspInst_t* fnp =  cmDspSysAllocInst(h,"Fname",    NULL,  3, false,"Audio Files (*.wav,*.aiff,*.aif)\tAudio Files (*.{wav,aiff,aif})",fn);
+  cmDspInst_t* php =  cmDspSysAllocInst(h,"Phasor",   NULL,  0 );
+  cmDspInst_t* wtp =  cmDspSysAllocInst(h,"WaveTable",NULL,  2, ((int)cmDspSysSampleRate(h)), 1 );
+
+  cmDspInst_t* dst =  cmDspSysAllocInst(h,"DistDs",   NULL, 3, bypassFl, inGain, dsrate, bits  ); 
+  cmDspInst_t* cf  = cmDspSysAllocInst( h,"CombFilt", NULL, 5, cfBypassFl, cfMinHz, cfFbFl, cfMinHz, cfAlpha );
+  
+  cmDspInst_t* xfad  = cmDspSysAllocInst(h,"Xfader", NULL,    2, outChCnt, xfadeMs );
+
+
+  cmDspInst_t* ao0p = cmDspSysAllocInst(h,"AudioOut",NULL,   1, 0 );
+  cmDspInst_t* ao1p = cmDspSysAllocInst(h,"AudioOut",NULL,   1, 1 );
+
+
+  cmDspInst_t* ign   = cmDspSysAllocScalar( h, "In Gain",      0.0, 10.0, 0.01, 1.0);
+  cmDspInst_t* rct   = cmDspSysAllocCheck(  h, "Rectify",   rectifyFl);
+  cmDspInst_t* ful   = cmDspSysAllocCheck(  h, "Full/Half", fullRectFl);
+  cmDspInst_t* dsr   = cmDspSysAllocScalar( h, "Srate",        0.0, 96000, 1.0, dsrate);
+  cmDspInst_t* dbt   = cmDspSysAllocScalar( h, "bits",         2.0,  32.0, 1.0, bits);
+  cmDspInst_t* clip  = cmDspSysAllocScalar( h, "Clip dB",   -100.0,   0.0, 0.1, clipDb);
+  cmDspInst_t* ogn   = cmDspSysAllocScalar( h, "Out Gain",    0.0, 10.0, 0.01, 1.0);
+
+  cmDspInst_t* cfhz    = cmDspSysAllocScalar( h, "CF Hz",     25, 10000, 1, cfHz );
+  cmDspInst_t* cfalpha = cmDspSysAllocScalar( h, "CF Alpha",   0.0, 2.0, 0.001, cfAlpha);
+  cmDspInst_t* cfgain  = cmDspSysAllocScalar( h, "CF Gain",    0.0, 20.0, 0.001, 1.0);
+  cmDspInst_t* cffb    = cmDspSysAllocInst(   h,"Button", "CF Fb",  2, kCheckDuiId, 0.0 );
+
+  cmDspInst_t* dfdb    = cmDspSysAllocInst(   h,"Button", "Dist Fade",  2, kCheckDuiId, 0.0 );
+  cmDspInst_t* cfdb    = cmDspSysAllocInst(   h,"Button", "CF Fade",  2, kCheckDuiId, 0.0 );
+
+
+  if((rc = cmDspSysLastRC(h)) != kOkDspRC )
+    return rc;
+  
+  cmDspSysConnectAudio(h, php, "out", wtp,  "phs" );  // phasor -> wave table
+
+  cmDspSysConnectAudio(h, wtp, "out",  dst,  "in" );   // wt   -> dist
+  cmDspSysConnectAudio(h, dst, "out",  xfad, "in-0");  // dist -> xfad
+  cmDspSysConnectAudio(h, xfad,"out-0",ao0p, "in" );   // xfad -> aout
+
+  cmDspSysConnectAudio(h, wtp, "out",  cf,   "in" );   // wt   -> xfad
+  cmDspSysConnectAudio(h, cf,  "out",  xfad, "in-1");  // xfad -> cf
+  cmDspSysConnectAudio(h, xfad,"out-1",ao1p, "in" );   // cf   -> aout 
+
+  cmDspSysInstallCb(h, ofp, "val", wtp, "beg", NULL ); // offset -> wavetable
+  cmDspSysInstallCb(h, fnp, "out", wtp, "fn", NULL);   // filename -> wavetable  
+
+
+  // Distortion control connections
+  cmDspSysInstallCb(h, ign,  "val", dst, "igain", NULL );
+  cmDspSysInstallCb(h, dsr,  "val", dst, "srate", NULL );
+  cmDspSysInstallCb(h, dbt,  "val", dst, "bits", NULL );
+  cmDspSysInstallCb(h, rct,  "out", dst, "rect", NULL );
+  cmDspSysInstallCb(h, ful,  "out", dst, "full", NULL );
+  cmDspSysInstallCb(h, clip, "val", dst, "clip", NULL );
+
+  cmDspSysInstallCb(h, ogn,  "val", dst, "ogain", NULL );
+
+  cmDspSysInstallCb(h, cfhz,    "val", cf, "hz",    NULL );  
+  cmDspSysInstallCb(h, cfalpha, "val", cf, "alpha", NULL );
+  cmDspSysInstallCb(h, cffb,    "out", cf, "fb",    NULL );
+  cmDspSysInstallCb(h, cfgain,  "val", ao1p, "gain", NULL );
+
+  cmDspSysInstallCb(h, dfdb, "out", xfad, "gate-0", NULL);
+  cmDspSysInstallCb(h, cfdb, "out", xfad, "gate-1", NULL);
+
+  return cmDspSysLastRC(h);
+}
+