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model.cc

/*
    Copyright (C) 2005 Fons Adriaensen <fons.adriaensen@skynet.be>
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/


#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <time.h>
#include "model.h"
#include "scales.h"
#include "global.h"


Divis::Divis (void) : _flags (0), _dmask (0), _nrank (0)
{
    *_label = 0;
    _param [SWELL]._val = SWELL_DEF;
    _param [SWELL]._min = SWELL_MIN;
    _param [SWELL]._max = SWELL_MAX;
    _param [TFREQ]._val = TFREQ_DEF;
    _param [TFREQ]._min = TFREQ_MIN;
    _param [TFREQ]._max = TFREQ_MAX;
    _param [TMODD]._val = TMODD_DEF;
    _param [TMODD]._min = TMODD_MIN;
    _param [TMODD]._max = TMODD_MAX;
}



Model::Model (Lfq_u32 *commq, const char *appid, const char *stops, const char *instr, const char *waves, bool uhome) :
    A_thread ("Model"), _commq (commq), _appid (appid), _stops (stops), _uhome (uhome), _ready (false), 
    _nasect (0), _ndivis (0), _nkeybd (0), _ngroup (0), _count (0), _bank (0), _pres (0), _audio (0), _midi (0)
{
    sprintf (_instr, "%s/%s", stops, instr);
    sprintf (_waves, "%s/%s", stops, waves);
    memset (_chbits, 0, 16 * sizeof (U16));
    memset (_preset, 0, NBANK * NPRES * sizeof (Preset *));
}


Model::~Model (void)
{
    if (_audio) _audio->recover ();
    if (_midi)  _midi->recover ();
}


void Model::thr_main (void)
{
    int E;

    init ();     
    while ((E = get_event ()) != EV_EXIT)
    {
      switch (E)
      {
        case FM_AUDIO:
        case FM_IMIDI:
        case FM_SLAVE:
        case FM_IFACE:
            proc_mesg (get_message ());
          break;

      default:
          ;
      }
    } 
    fini ();
    send_event (EV_EXIT, 1);
}


void Model::init (void)
{
    read_instr ();
    read_presets ();
}


void Model::fini (void)
{
    write_presets ();
}


void Model::proc_mesg (ITC_mesg *M)
{
    switch (M->type ())
    {
    case MT_IFC_ELCLR:
    case MT_IFC_ELSET:
    case MT_IFC_ELXOR:
    {
        M_ifc_ifelm *X = (M_ifc_ifelm *) M;
        set_ifelm (X->_group, X->_ifelm, X->type () - MT_IFC_ELCLR);
      break;
    }
    case MT_IFC_GRCLR:
    {
        M_ifc_ifelm *X = (M_ifc_ifelm *) M;
        clr_group (X->_group);
      break;
    }
    case MT_IFC_AUPAR:
    {
        M_ifc_aupar *X = (M_ifc_aupar *) M;
        set_aupar (X->_srcid, X->_asect, X->_parid, X->_value);
      break;
    }
    case MT_IFC_DIPAR:
    {
        M_ifc_dipar *X = (M_ifc_dipar *) M;
        set_dipar (X->_srcid, X->_divis, X->_parid, X->_value);
      break;
    }
    case MT_IFC_RETUNE:
    {
        M_ifc_retune *X = (M_ifc_retune *) M;
        retune (X->_freq, X->_temp);
      break;
    }
    case MT_IFC_ASOFF:
    {
      M_ifc_asoff *X = (M_ifc_asoff *) M;
        midi_off (X->_bits);
      break;
    }
    case MT_IFC_MCSET:
    {
        int index;

      M_ifc_chconf *X = (M_ifc_chconf *) M;
        index = X->_index;
        if (index >= 0)
      { 
          if (index >= 8) break;
            memcpy (_chconf [X->_index]._bits, X->_bits, 16 * sizeof (U16));
      }  
        set_mconf (X->_index, X->_bits);
    }
    case MT_IFC_MCGET:
    {
        int index;

      M_ifc_chconf *X = (M_ifc_chconf *) M;
        index = X->_index;
        if (index >= 0)
      { 
          if (index >= 8) break;
            set_mconf (X->_index, _chconf [X->_index]._bits);
      }                  
      break;
    }
    case MT_IFC_PRRCL:
    {
      M_ifc_preset *X = (M_ifc_preset *) M;
        if (X->_bank < 0) X->_bank = _bank;
        set_state (X->_bank, X->_pres);       
        break;
    }
    case MT_IFC_PRDEC:
    {
      if (_pres > 0) set_state (_bank, --_pres);
        break;
    }
    case MT_IFC_PRINC:
    {
      if (_pres < NPRES - 1) set_state (_bank, ++_pres);
        break;
    }
    case MT_IFC_PRSTO:
    {
      M_ifc_preset *X = (M_ifc_preset *) M;
        U32           d [NGROUP];
        get_state (d);
        set_preset (X->_bank, X->_pres, d);         
        break;
    }
    case MT_IFC_PRINS:
    {
      M_ifc_preset *X = (M_ifc_preset *) M;
        U32           d [NGROUP];
        get_state (d);
        ins_preset (X->_bank, X->_pres, d);         
        break;
    }
    case MT_IFC_PRDEL:
    {
      M_ifc_preset *X = (M_ifc_preset *) M;
        del_preset (X->_bank, X->_pres);         
        break;
    }
    case MT_IFC_PRGET:
    {
      M_ifc_preset *X = (M_ifc_preset *) M;
        X->_stat = get_preset (X->_bank, X->_pres, X->_bits);
        send_event (TO_IFACE, M);
        M = 0;
        break;
    }
    case MT_IFC_EDIT:
    {
      M_ifc_edit *X = (M_ifc_edit *) M;
        Rank       *R = find_rank (X->_group, X->_ifelm); 
        if (_ready && R)
      {
            X->_synth = R->_sdef;
            send_event (TO_IFACE, M);
            M = 0;
      }
      break;
    }
    case MT_IFC_APPLY:
    {
      M_ifc_edit *X = (M_ifc_edit *) M;
        if (_ready) recalc (X->_group, X->_ifelm);
      break;
    }
    case MT_IFC_SAVE:
      save ();
        break;

    case MT_LOAD_RANK:
    case MT_CALC_RANK:
    {
        M_def_rank *X = (M_def_rank *) M; 
        _divis [X->_divis]._ranks [X->_rank]._wave = X->_wave;
      break;
    }
    case MT_AUDIO_INFO:
        _audio = (M_audio_info *) M; 
        M = 0;
        if (_midi)
      {
            init_audio ();
            init_iface ();
            init_ranks (MT_LOAD_RANK);
      }
      break;

    case MT_MIDI_INFO:
        _midi = (M_midi_info *) M; 
        M = 0;
        if (_audio)
      {
            init_audio ();
            init_iface ();
            init_ranks (MT_LOAD_RANK);
      }
      break;

    case MT_AUDIO_SYNC:
        send_event (TO_IFACE, new ITC_mesg (MT_IFC_READY));
        _ready = true;
      break;

    default:
        fprintf (stderr, "Model: unexpected message, type = %ld\n", M->type ());
    }
    if (M) M->recover ();
}    


void Model::init_audio (void)
{
    int          d;
    Divis        *D;
    M_new_divis  *M;

    for (d = 0, D = _divis; d < _ndivis; d++, D++)
    {
        M = new M_new_divis (); 
        M->_flags = D->_flags;
        M->_dmask = D->_dmask;
        M->_asect = D->_asect;
        M->_swell = D->_param [Divis::SWELL]._val;
        M->_tfreq = D->_param [Divis::TFREQ]._val;
        M->_tmodd = D->_param [Divis::TMODD]._val;
        send_event (TO_AUDIO, M);  
    }
}


void Model::init_iface (void)
{
    int          i, j;
    M_ifc_init   *M;
    Keybd        *K;
    Divis        *D;
    Group        *G;

    M = new M_ifc_init; 
    M->_stops  = _stops;
    M->_waves  = _waves;
    M->_instr  = _instr;
    M->_appid  = _appid;
    M->_client = _midi->_client;
    M->_ipport = _midi->_ipport;
    M->_nasect = _nasect;
    M->_nkeybd = _nkeybd;
    M->_ndivis = _ndivis;
    M->_ngroup = _ngroup;
    M->_ntempe = NSCALES;
    for (i = 0; i < _nkeybd; i++)
    {
        K = _keybd + i;
      M->_keybdd [i]._label = K->_label;
      M->_keybdd [i]._flags = K->_flags;
    }
    for (i = 0; i < _ndivis; i++)
    {
        D = _divis + i;
      M->_divisd [i]._label = D->_label;
      M->_divisd [i]._flags = D->_flags;
      M->_divisd [i]._asect = D->_asect;
    }
    for (i = 0; i < _ngroup; i++)
    {
        G = _group + i;
      M->_groupd [i]._label  = G->_label;
      M->_groupd [i]._nifelm = G->_nifelm;
        for (j = 0; j < G->_nifelm; j++)
      {
          M->_groupd [i]._ifelmd [j]._label = G->_ifelms [j]._label;
          M->_groupd [i]._ifelmd [j]._mnemo = G->_ifelms [j]._mnemo;
          M->_groupd [i]._ifelmd [j]._type  = G->_ifelms [j]._type;
      }
    }
    for (i = 0; i < NSCALES; i++)
    {
      M->_temped [i]._label = scales [i]._label;
      M->_temped [i]._mnemo = scales [i]._mnemo;
    }
    send_event (TO_IFACE, M);

    for (j = 0; j < 4; j++)
    {
        send_event (TO_IFACE, new M_ifc_aupar (0, -1, j, _audio->_instrpar [j]._val));
    }
    for (i = 0; i < _nasect; i++)
    {
      for (j = 0; j < 5; j++)
      {
          send_event (TO_IFACE, new M_ifc_aupar (0, i, j, _audio->_asectpar [i][j]._val));
      }
    }
    for (i = 0; i < _ndivis; i++)
    {
      for (j = 0; j < 3; j++)
      {
          send_event (TO_IFACE, new M_ifc_dipar (0, i, j, _divis [i]._param [j]._val));
      }
    }
    set_mconf (0, _chconf [0]._bits);
}


void Model::init_ranks (int comm)
{
    int    g, i;
    Group  *G;

    _count++;
    _ready = false;
    send_event (TO_IFACE, new M_ifc_retune (_fbase, _itemp));

    for (g = 0; g < _ngroup; g++)
    {
      G = _group + g;
      for (i = 0; i < G->_nifelm; i++) proc_rank (g, i, comm);
    }
    send_event (TO_SLAVE, new ITC_mesg (MT_AUDIO_SYNC));
}


void Model::proc_rank (int g, int i, int comm)
{
    int         d, r;
    M_def_rank  *M;
    Ifelm       *I;
    Rank        *R;

    I = _group [g]._ifelms + i;
    if ((I->_type == Ifelm::DIVRANK) || (I->_type == Ifelm::KBDRANK))
    {
        d = (I->_action0 >> 16) & 255;
        r = (I->_action0 >>  8) & 255;
        R = _divis [d]._ranks + r;
        if (comm == MT_SAVE_RANK)
        {
          if (R->_wave->modif ())
          {
            M = new M_def_rank (comm);
              M->_fsamp = _audio->_fsamp;
              M->_fbase = _fbase;
              M->_scale = scales [_itemp]._data;
              M->_sdef  = R->_sdef;
              M->_wave  = R->_wave;
              M->_path  = _waves;
              send_event (TO_SLAVE, M);
          }
      }
        else if (R->_count != _count)
      {
            R->_count = _count;
          M = new M_def_rank (comm);
          M->_divis = d;
          M->_rank  = r;
          M->_group = g;
          M->_ifelm = i;
          M->_fsamp = _audio->_fsamp;
          M->_fbase = _fbase;
          M->_scale = scales [_itemp]._data;
          M->_sdef  = R->_sdef;
          M->_wave  = R->_wave;
          M->_path  = _waves;
          send_event (TO_SLAVE, M);
      }
    }
}


void Model::set_ifelm (int g, int i, int m)
{
    int    s;
    Ifelm  *I;
    Group  *G;    

    G = _group + g;
    if ((! _ready) || (g >= _ngroup) || (i >= G->_nifelm)) return;
    I = G->_ifelms + i;
    s = (m == 2) ? I->_state ^ 1 : m;
    if (I->_state != s)
    {
      I->_state = s;
        if (_commq->wr_avail ())
      {
          *(_commq->wr_ptr ()) = s ? I->_action1 : I->_action0;  
            _commq->wr_commit ();
            send_event (TO_IFACE, new M_ifc_ifelm (MT_IFC_ELCLR + s, g, i));         
      }
    }
}


void Model::clr_group (int g)
{
    int     i;
    Ifelm  *I;
    Group  *G;    

    G = _group + g;
    if ((! _ready) || (g >= _ngroup)) return;

    for (i = 0; i < G->_nifelm; i++)
    {
        I = G->_ifelms + i;
        if (I->_state)
        {
          I->_state = 0;
            if (_commq->wr_avail ())
          {
              *(_commq->wr_ptr ()) = I->_action0;  
               _commq->wr_commit ();
          }
      }
    }
    send_event (TO_IFACE, new M_ifc_ifelm (MT_IFC_GRCLR, g, 0));         
}


void Model::get_state (U32 *d)
{
    int    g, i;
    U32    s;
    Group  *G;
    Ifelm  *I;

    for (g = 0; g < _ngroup; g++)
    {
        G = _group + g;
      s = 0;
        for (i = 0; i < G->_nifelm; i++)
      {
          I = G->_ifelms + i;   
            if (I->_state & 1) s |= 1 << i;
      }
        *d++ = s;
    } 
}


void Model::set_state (int bank, int pres)
{
    int    g, i;
    U32    d [NGROUP], s;
    Group  *G;

    _bank = bank;
    _pres = pres;
    if (get_preset (bank, pres, d))
    {
        for (g = 0; g < _ngroup; g++)
        {
            s = d [g];
            G = _group + g;
            for (i = 0; i < G->_nifelm; i++)
          {
                set_ifelm (g, i, s & 1);
                s >>= 1;
          }
      }
        send_event (TO_IFACE, new M_ifc_preset (MT_IFC_PRRCL, bank, pres, _ngroup, d));
    }
    else send_event (TO_IFACE, new M_ifc_preset (MT_IFC_PRRCL, bank, pres, 0, 0));
}


void Model::set_aupar (int s, int a, int p, float v)
{
    Fparm  *P;
    
    P = ((a < 0) ? _audio->_instrpar : _audio->_asectpar [a]) + p;
    if (v < P->_min) v = P->_min;
    if (v > P->_max) v = P->_max;
    P->_val = v;
    send_event (TO_IFACE, new M_ifc_aupar (s, a, p, v));         
}


void Model::set_dipar (int s, int d, int p, float v)
{
    Fparm  *P;
    
    P = _divis [d]._param + p;
    if (v < P->_min) v = P->_min;
    if (v > P->_max) v = P->_max;
    P->_val = v;
    if (_commq->wr_avail () >= 2)
    {
      *(_commq->wr_ptr ()) = (17 << 24) | (d << 16) | (p << 8);
        _commq->wr_commit ();
      *((float *)(_commq->wr_ptr ())) = v;
        _commq->wr_commit ();
        send_event (TO_IFACE, new M_ifc_dipar (s, d, p, v));         
    }
}


void Model::set_mconf (int i, U16 *d)
{
    int j, a, b;
    
    midi_off (127);
    for (j = 0; j < 16; j++)
    {
        a = d [j];
      b =  (a & 0x1000) ? (_keybd [a & 7]._flags & 127) : 0;
        b |= a & 0x7700;
        _chbits [j] = b;
    }
    send_event (TO_IFACE, new M_ifc_chconf (MT_IFC_MCSET, i, d));         
}


void Model::midi_off (int mask)
{
    mask &= 127;
    if (_commq->wr_avail ())
    {
        *(_commq->wr_ptr ()) = (2 << 24) | (mask << 16) | mask;
        _commq->wr_commit ();
    }
}


void Model::retune (float freq, int temp)
{
    if (_ready)
    {
      _fbase = freq;
        _itemp = temp;
        init_ranks (MT_CALC_RANK);
    }
    else send_event (TO_IFACE, new M_ifc_retune (_fbase, _itemp));
}


void Model::recalc (int g, int i)
{
    _count++;
    _ready = false;
    proc_rank (g, i, MT_CALC_RANK);
    send_event (TO_SLAVE, new ITC_mesg (MT_AUDIO_SYNC));
}


void Model::save (void)
{
    int     g, i;
    Group   *G;

    write_instr ();
    write_presets ();
    _ready = false;
    for (g = 0; g < _ngroup; g++)
    {
      G = _group + g;
      for (i = 0; i < G->_nifelm; i++) proc_rank (g, i, MT_SAVE_RANK);
    }
    send_event (TO_SLAVE, new ITC_mesg (MT_AUDIO_SYNC));
}


Rank *Model::find_rank (int g, int i)
{
    int    d, r;
    Ifelm  *I;

    I = _group [g]._ifelms + i;
    if ((I->_type == Ifelm::DIVRANK) || (I->_type == Ifelm::KBDRANK))
    {
        d = (I->_action0 >> 16) & 255;
        r = (I->_action0 >>  8) & 255;
        return _divis [d]._ranks + r;
    }
    return 0;
}


int Model::read_instr (void)
{
    FILE          *F;
    int           line, stat, n;
    bool          instr;
    int           d, k, r, s;
    char          c, *p, *q;
    char          buff [1024];
    char          t1 [256];
    char          t2 [256];
    Keybd         *K;
    Divis         *D;
    Rank          *R;
    Group         *G;
    Ifelm         *I;
    Addsynth      *A;

    enum { CONT, DONE, ERROR, COMM, ARGS, MORE, NO_INSTR, IN_INSTR,
           BAD_SCOPE, BAD_ASECT, BAD_RANK, BAD_DIVIS, BAD_KEYBD, BAD_IFACE,
           BAD_STR1, BAD_STR2 };

    sprintf (buff, "%s/definition", _instr);
    if (! (F = fopen (buff, "r"))) 
    {
      fprintf (stderr, "Can't open '%s' for reading\n", buff);
        return 1;
    } 
    printf ("Reading '%s'\n", buff);
   
    stat = 0;
    line = 0;
    instr = false;
    D = 0;
    G = 0;
    d = k = r = s = 0;
   
    while (! stat && fgets (buff, 1024, F))
    {
        line++;
        p = buff; 
        if (*p != '/')
      {
            while (isspace (*p)) p++;
            if ((*p > ' ') && (*p != '#'))
          {
                fprintf (stderr, "Syntax error in line %d\n", line);
                stat = COMM;
          }
            continue;
      }

        q = p;
        while ((*q >= ' ') && !isspace (*q)) q++;
        *q++ = 0;   
        while ((*q >= ' ') && isspace (*q)) q++;
    
        if (! strcmp (p, "/instr/new"))
      {
            if (instr) stat = IN_INSTR;
            else instr = true;
      }
        else if (! instr)
      {
          stat = NO_INSTR;
      }
        else if (! strcmp (p, "/instr/end"))
        {
            instr = false; 
            stat = DONE;
      }
        else if (! strcmp (p, "/manual/new") || ! strcmp (p, "/pedal/new"))
        {
          if (D || G) stat = BAD_SCOPE;
            else if (sscanf (q, "%s%n", t1, &n) != 1) stat = ARGS;
            else
          {
            q += n;
                if (_nkeybd == NKEYBD)
            {
                fprintf (stderr, "Line %d: can't create more than %d keyboards\n", line, NKEYBD);
                    stat = ERROR;
            }
                else if (strlen (t1) > 15) stat = BAD_STR1;
                else
            {
                    k = _nkeybd++;
                K = _keybd + k; 
                    strcpy (K->_label, t1);
                    K->_flags = 1 << k;
                    if (p [1] == 'p') K->_flags |= 64 | Keybd::IS_PEDAL;
            }
          }
      }
        else if (! strcmp (p, "/divis/new"))
        {
          if (D || G) stat = BAD_SCOPE;
            else if (sscanf (q, "%s%d%d%n", t1, &k, &s, &n) != 3) stat = ARGS;
            else
          {
            q += n;
            if (_ndivis == NDIVIS)
            {
                fprintf (stderr, "Line %d: can't create more than %d divisions\n", line, NDIVIS);
                stat = ERROR;
            }
            else if (strlen (t1) > 15) stat = BAD_STR1;
            else if ((k < 0) || (k > _nkeybd)) stat = BAD_KEYBD;
            else if ((s < 1) || (s > NASECT))  stat = BAD_ASECT;
            else
            {
                D = _divis + _ndivis++;
                strcpy (D->_label, t1);
                    if (_nasect < s) _nasect = s;
                D->_asect = s - 1;
                    D->_keybd = k - 1;
                if (k--) D->_dmask = _keybd [k]._flags & 127;
            }
          }
      }
        else if (! strcmp (p, "/divis/end"))
        {
          if (!D || G) stat = BAD_SCOPE;
            else D = 0;
      }
        else if (! strcmp (p, "/group/new"))
        {
          if (D || G) stat = BAD_SCOPE;
            else if (sscanf (q, "%s%n", t1, &n) != 1) stat = ARGS;
            else
          {
            q += n;
            if (_ngroup == NGROUP)
            {
                fprintf (stderr, "Line %d: can't create more than %d groups\n", line, NGROUP);
                stat = ERROR;
            }
            else if (strlen (t1) > 15) stat = BAD_STR1;
            else
            {
                G = _group + _ngroup++;
                strcpy (G->_label, t1);
            }       
          }
      }
        else if (! strcmp (p, "/group/end"))
        {
          if (D || !G) stat = BAD_SCOPE;
            else G = 0;
      }
        else if (! strcmp (p, "/tuning"))
        {
          if (D || G) stat = BAD_SCOPE;
            else if (sscanf (q, "%f%d%n", &_fbase, &_itemp, &n) != 2) stat = ARGS;
            else q += n;
      }
        else if (! strcmp (p, "/rank"))
        {
          if (!D && G) stat = BAD_SCOPE;
            else if (sscanf (q, "%c%d%s%n", &c, &d, t1, &n) != 3) stat = ARGS;
            else
          {
              q += n;
                if (D->_nrank == Divis::NRANK) 
            {
                fprintf (stderr, "Line %d: can't create more than %d ranks per division\n", line, Divis::NRANK);
                stat = ERROR;
            }
                else if (strlen (t1) > 63) stat = BAD_STR1;
                else
            {
                    A = new Addsynth;
                strcpy (A->_filename, t1);
                    if (A->load (_stops))
                {
                  stat = ERROR;
                  delete A;
                }
                    else
                {   
                        A->_pan = c;
                        A->_del = d; 
                  R = D->_ranks + D->_nrank++; 
                        R->_count = 0;
                        R->_sdef = A;
                        R->_wave = 0;
                }
            }
          }
      }
        else if (! strcmp (p, "/tremul"))
        {
          if (D)
          {
            if (sscanf (q, "%f%f%n", &(D->_param [Divis::TFREQ]._val),
                            &(D->_param [Divis::TMODD]._val), &n) != 2) stat = ARGS;
                else
            {
                q += n;
                D->_flags |= Divis::HAS_TREM;
            }
          }
          else if (G)
          {
            if (sscanf (q, "%d%s%s%n", &d, t1, t2, &n) != 3) stat = ARGS;
                else
            {
                q += n;
                    if (G->_nifelm == Group::NIFELM) stat = BAD_IFACE;
                    else if ((d < 1) || (d > _ndivis)) stat = BAD_DIVIS;
                else if (strlen (t1) >  7) stat = BAD_STR1;
                else if (strlen (t2) > 31) stat = BAD_STR2;
                    else
                {
                        d--;
                  I = G->_ifelms + G->_nifelm++;
                  strcpy (I->_mnemo, t1);
                  strcpy (I->_label, t2);
                  I->_type = Ifelm::TREMUL;  
                  I->_action0 = (16 << 24) | (d << 16) | 0;
                  I->_action1 = (16 << 24) | (d << 16) | 1;
                }
            }
          }
            else stat = BAD_SCOPE;
      }
        else if (! strcmp (p, "/swell"))
        {
          if (!D || G) stat = BAD_SCOPE;
            else D->_flags |= Divis::HAS_SWELL;
      }
        else if (! strcmp (p, "/stop"))
        {
          if (D || !G) stat = BAD_SCOPE;
            else if (sscanf (q, "%d%d%d%n", &k, &d, &r, &n) != 3) stat = ARGS;
            else
          {
              q += n;
                if (G->_nifelm == Group::NIFELM) stat = BAD_IFACE;
                else if ((k < 0) || (k > _nkeybd)) stat = BAD_KEYBD;
                else if ((d < 1) || (d > _ndivis)) stat = BAD_DIVIS;
                else if ((r < 1) || (r > _divis [d - 1]._nrank)) stat = BAD_RANK;
                else
            {
                    k--;
                    d--;
                    r--;
                I = G->_ifelms + G->_nifelm++;
                    R = _divis [d]._ranks + r;
                    strcpy (I->_label, R->_sdef->_stopname);
                    strcpy (I->_mnemo, R->_sdef->_mnemonic);
                    I->_keybd = k;
                    if (k >= 0)
                {
                        I->_type = Ifelm::KBDRANK; 
                  k = _keybd [k]._flags & 127;
                }
                else
                {
                        I->_type = Ifelm::DIVRANK; 
                  k = 128;
                }
                    I->_action0 = (6 << 24) | (d << 16) | (r << 8) | k;
                    I->_action1 = (7 << 24) | (d << 16) | (r << 8) | k;
            }
          }
      }
        else if (! strcmp (p, "/coupler"))
        {
          if (D || !G) stat = BAD_SCOPE;
            else if (sscanf (q, "%d%d%s%s%n", &k, &d, t1, t2, &n) != 4) stat = ARGS;
            else
          {
            q += n;
                if (G->_nifelm == Group::NIFELM) stat = BAD_IFACE;
                else if ((k < 1) || (k > _nkeybd)) stat = BAD_KEYBD;
                else if ((d < 1) || (d > _ndivis)) stat = BAD_DIVIS;
            else if (strlen (t1) >  7) stat = BAD_STR1;
            else if (strlen (t2) > 31) stat = BAD_STR2;
                else
            {
                    k--;
                    d--;
                I = G->_ifelms + G->_nifelm++;
                    strcpy (I->_mnemo, t1);
                    strcpy (I->_label, t2);
                    I->_type = Ifelm::COUPLER;
                  I->_keybd = k;  
                    k = _keybd [k]._flags & 127;
                    I->_action0 = (4 << 24) | (d << 16) | k;
                    I->_action1 = (5 << 24) | (d << 16) | k;
            }
          }
      }
        else stat = COMM;

        if (stat <= DONE)
      {
            while (isspace (*q)) q++;
            if (*q > ' ') stat = MORE;
      }                

        switch (stat)
      {
        case COMM:
          fprintf (stderr, "Line %d: unknown command '%s'\n", line, p);   
            break;
        case ARGS:
          fprintf (stderr, "Line %d: missing arguments in '%s' command\n", line, p);   
            break;
        case MORE:
          fprintf (stderr, "Line %d: extra arguments in '%s' command\n", line, p);   
            break;
        case NO_INSTR:
          fprintf (stderr, "Line %d: command '%s' outside instrument scope\n", line, p);   
            break;
        case IN_INSTR:
          fprintf (stderr, "Line %d: command '%s' inside instrument scope\n", line, p);   
            break;
        case BAD_SCOPE:
          fprintf (stderr, "Line %d: command '%s' in wrong scope\n", line, p);   
            break;
        case BAD_ASECT:
          fprintf (stderr, "Line %d: no section '%d'\n", line, s);   
            break;
        case BAD_RANK:
          fprintf (stderr, "Line %d: no rank '%d' in division '%d'\n", line, r, d);   
            break;
        case BAD_KEYBD:
          fprintf (stderr, "Line %d: no keyboard '%d'\n", line, k);   
            break;
        case BAD_DIVIS:
          fprintf (stderr, "Line %d: no division '%d'\n", line, d);   
            break;
        case BAD_IFACE:
          fprintf (stderr, "Line %d: can't create more than '%d' elements per group\n", line, Group::NIFELM);   
            break;
        case BAD_STR1:
          fprintf (stderr, "Line %d: string '%s' is too long\n", line, t1);   
            break;
        case BAD_STR2:
          fprintf (stderr, "Line %d: string '%s' is too long\n", line, t1);   
            break;
      }
    }

    fclose (F);
    return (stat <= DONE) ? 0 : 2;
}


int Model::write_instr (void)
{
    FILE          *F;
    int           d, g, i, k, r;
    char          buff [1024];
    time_t        t;
    Divis         *D;
    Rank          *R;
    Group         *G;
    Ifelm         *I;
    Addsynth      *A;

    sprintf (buff, "%s/definition", _instr);
    if (! (F = fopen (buff, "w"))) 
    {
      fprintf (stderr, "Can't open '%s' for writing\n", buff);
        return 1;
    } 
    printf ("Writing '%s'\n", buff);
    t = time (0);
   
    fprintf (F, "# Aeolus instrument definition file\n");
    fprintf (F, "# Created by Aeolus-%s at %s\n", VERSION, ctime (&t));

    fprintf (F, "\n/instr/new\n");
    fprintf (F, "/tuning %5.1f %d\n", _fbase, _itemp); 

    fprintf (F, "\n# Keyboards\n#\n");
    for (k = 0; k < _nkeybd; k++)
    {
      if (_keybd [k]._flags & Keybd::IS_PEDAL) fprintf (F, "/pedal/new    %s\n", _keybd [k]._label);    
        else                                     fprintf (F, "/manual/new   %s\n", _keybd [k]._label);
    }

    fprintf (F, "\n# Divisions\n#\n");
    for (d = 0; d < _ndivis; d++)
    {
      D = _divis + d;
        fprintf (F, "/divis/new    %-7s  %d  %d\n", D->_label, D->_keybd + 1, D->_asect + 1); 
        for (r = 0; r < D->_nrank; r++)
      {
            R = D->_ranks + r;
          A = R->_sdef;
            fprintf (F, "/rank         %c %3d  %s\n", A->_pan, A->_del, A->_filename);        
      } 
        if (D->_flags & Divis::HAS_SWELL) fprintf (F, "/swell\n");
        if (D->_flags & Divis::HAS_TREM) fprintf (F, "/tremul       %3.1f  %3.1f\n",
                                                  D->_param [Divis::TFREQ]._val, D->_param [Divis::TMODD]._val);
        fprintf (F, "/divis/end\n\n");
    }

    fprintf (F, "# Interface groups\n#\n");
    for (g = 0; g < _ngroup; g++)
    {
      G = _group + g;
        fprintf (F, "/group/new    %-7s\n", G->_label); 
        for (i = 0; i < G->_nifelm; i++)
      {
          I = G->_ifelms + i;
            switch (I->_type)
          {
          case Ifelm::DIVRANK:
          case Ifelm::KBDRANK:
                k = I->_keybd;
                d = (I->_action0 >> 16) & 255;
                r = (I->_action0 >>  8) & 255;
                fprintf (F, "/stop         %d   %d  %2d\n", k + 1, d + 1, r + 1);
            break;

          case Ifelm::COUPLER:
                k = I->_keybd;
                d = (I->_action0 >> 16) & 255;
                fprintf (F, "/coupler      %d   %d   %-7s  %s\n", k + 1, d + 1, I->_mnemo, I->_label);
            break;

          case Ifelm::TREMUL:
                d = (I->_action0 >> 16) & 255;
                D = _divis + d;  
                fprintf (F, "/tremul       %d       %-7s  %s\n", d + 1, I->_mnemo, I->_label);
            break;
          } 
      } 
        fprintf (F, "/group/end\n\n");
    }

    fprintf (F, "\n/instr/end\n");
    fclose (F);

    return 0;
}


int Model::get_preset (int bank, int pres, U32 *bits)
{
    int     k;
    Preset  *P;

    if ((bank < 0) | (pres < 0) || (bank >= NBANK) || (pres >= NPRES)) return 0;
    P = _preset [bank][pres];
    if (P)
    {
        for (k = 0; k < _ngroup; k++) *bits++ = P->_bits [k];
        return k; 
    }
    return 0;
} 


void Model::set_preset (int bank, int pres, U32 *bits)
{
    int     k;
    Preset  *P;

    if ((bank  < 0) | (pres < 0) || (bank >= NBANK) || (pres >= NPRES)) return;
    P = _preset [bank][pres];
    if (! P)
    {
      P = new Preset;
        _preset [bank][pres] = P;
    }
    for (k = 0; k < _ngroup; k++) P->_bits [k] = *bits++;
}


void Model::ins_preset (int bank, int pres, U32 *bits)
{
    int     j, k;
    Preset  *P;

    if ((bank < 0) | (pres < 0) || (bank >= NBANK) || (pres >= NPRES)) return;
    P = _preset [bank][NPRES - 1];
    for (j = NPRES - 1; j > pres; j--) _preset [bank][j] = _preset [bank][j - 1];
    if (! P)
    {
      P = new Preset;
        _preset [bank][pres] = P;
    }
    for (k = 0; k < _ngroup; k++) P->_bits [k] = *bits++;
}


void Model::del_preset (int bank, int pres)
{
    int j;

    if ((bank < 0) | (pres < 0) || (bank >= NBANK) || (pres >= NPRES)) return;
    delete _preset [bank][pres];
    for (j = pres; j < NPRES - 1; j++) _preset [bank][j] = _preset [bank][j + 1];
    _preset [bank][NPRES - 1] = 0;
}


int Model::read_presets (void)
{
    int            i, j, k, n;
    char           name [1024];
    unsigned char  *p, data [256];
    FILE           *F;
    Preset         *P;

    if (_uhome)
    {
        p = (unsigned char *)(getenv ("HOME"));
        if (p) sprintf (name, "%s/.aeolus-presets", p);
        else strcpy (name, ".aeolus-presets");
    }
    else
    {
      sprintf (name, "%s/presets", _instr);
    }
    if (! (F = fopen (name, "r"))) 
    {
      fprintf (stderr, "Can't open '%s' for reading\n", name);
        return 1;
    } 

    fread (data, 16, 1, F);
    if (strcmp ((char *) data, "PRESET") || data [7])
    {
      fprintf (stderr, "File '%s' is not a valid preset file\n", name);
        fclose (F);
        return 1;
    }
    printf ("Reading '%s'\n", name);
    n = RD2 (data + 14);

    if (fread (data, 256, 1, F) != 1)
    {
      fprintf (stderr, "No valid data in file '%s'\n", name);
        fclose (F);
        return 1;
    }
    p = data;
    for (i = 0; i < 8; i++)
    {
        for (j = 0; j < 16; j++)
      {
          _chconf [i]._bits [j] = RD2 (p);
            p += 2; 
      }
    }

    if (n != _ngroup)
    {
      fprintf (stderr, "Presets in file '%s' are not compatible\n", name);
        fclose (F);
        return 1;
    }
    while (fread (data, 4 + 4 * _ngroup, 1, F) == 1)
    {
        p = data;
      i = *p++;
        j = *p++;
        p++;
        p++;
        if ((i < NBANK) && (j < NPRES))
      { 
            P = new Preset;
            for (k = 0; k < _ngroup; k++)
          {
                P->_bits [k] = RD4 (p);
                p += 4;
          }
            _preset [i][j] = P;
      }
    }

    fclose (F);
    return 0;
}


int Model::write_presets (void)
{
    int            i, j, k, v;
    char           name [1024];
    unsigned char  *p, data [256];
    FILE           *F;
    Preset         *P;

    if (_uhome)
    {
        p = (unsigned char *)(getenv ("HOME"));
        if (p) sprintf (name, "%s/.aeolus-presets", p);
        else strcpy (name, ".aeolus-presets");
    }
    else
    {
      sprintf (name, "%s/presets", _instr);
    }
    if (! (F = fopen (name, "w"))) 
    {
      fprintf (stderr, "Can't open '%s' for writing\n", name);
        return 1;
    } 
    printf ("Writing '%s'\n", name);

    strcpy ((char *) data, "PRESET");
    data [7] = 0;
    WR2 (data +  8, 0);
    WR2 (data + 10, 0);
    WR2 (data + 12, 0);
    WR2 (data + 14, _ngroup);
    fwrite (data, 16, 1, F);

    p = data;
    for (i = 0; i < 8; i++)
    {
      for (j = 0; j < 16; j++)
      {
          v = _chconf [i]._bits [j];
          WR2 (p, v);
            p += 2; 
      }
    }
    fwrite (data, 256, 1, F);

    for (i = 0; i < NBANK; i++)
    {
        for (j = 0; j < NPRES; j++)
      {
            P = _preset [i][j];
            if (P)
          {
            p = data;
            *p++ = i; 
            *p++ = j;
            *p++ = 0;
            *p++ = 0;
            for (k = 0; k < _ngroup; k++) 
            {
                v = P->_bits [k];
                WR4 (p, v);
                p += 4;
            }         
            fwrite (data, 4 + 4 * _ngroup, 1, F);
          }
      }
    }

    fclose (F);
    return 0;
}

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