fmnote.c

00001 // fmnote.c
00002 #include    "fmtype.h"
00003 #include    "fmnote.h"
00004 #include    "fmpart.h"
00005 #include    "fmtone.h"
00006 #include    "fmasgn.h"
00007 
00008 //  Prototype
00009 static void     obtainNecessaryVoice(Note* _this);
00010 
00011 //  setter
00012 void Note_setPrevPtr( Note* _this, Note* pn ){ _this->_prevPtr = pn; }
00013 void Note_setNextPtr( Note* _this, Note* nn ){ _this->_nextPtr = nn; }
00014 void Note_setPart( Note* _this, void* pt ){ _this->_parent = pt; }
00015 void Note_setHold( Note* _this, bool hold ){ _this->_hold = hold; }
00016 //  getter
00017 bool Note_isInUse( Note* _this ){ return _this->_inUse; }
00018 bool Note_isKeyOn( Note* _this ){ return _this->_keyon; }
00019 bool Note_isHeld( Note* _this ){ return _this->_hold; }
00020 Note* Note_prevPtr( Note* _this ){ return _this->_prevPtr;}
00021 Note* Note_nextPtr( Note* _this ){ return _this->_nextPtr;}
00022 unsigned char Note_note(Note* _this){ return _this->_note; }
00023 unsigned char Note_velocity(Note* _this){ return _this->_velocity; }
00024 
00025 void Note_init( Note* _this )
00026 {
00027     _this->_prevPtr = 0;
00028     _this->_nextPtr = 0;
00029     _this->_inUse = false;
00030     _this->_keyon = false;
00031     _this->_hold = false;
00032     _this->_note = 0;
00033     _this->_parent = 0;
00034     _this->_velocity = 0;
00035 }
00036 
00037 bool Note_keyon( Note* _this, ToneData* newTone, unsigned char newNote, unsigned char newVelocity )
00038 {
00039     if ( _this->_parent == FMNULL){ return false; }
00040 
00041     _this->_note = newNote;
00042     _this->_velocity = newVelocity;
00043 
00044     //  obtain necessary voices
00045     obtainNecessaryVoice( _this);
00046 
00047     Fmvoice_keyon(_this->_vc, _this, _this->_parent, newTone, newNote, newVelocity);
00048 
00049     //  set variables
00050     _this->_keyon = true;
00051     _this->_inUse = true;
00052     _this->_hold = false;
00053     return true;
00054 }
00055 void Note_keyoff( Note* _this )
00056 {
00057     Fmvoice_keyoff( _this->_vc );
00058     _this->_keyon = false;
00059     _this->_hold = false;
00060 }
00061 void Note_damp( Note* _this )
00062 {
00063     if (_this->_vc != FMNULL) {
00064         Asgn_releaseParticularVc(_this->_vc);
00065     }
00066 }
00067 void Note_releaseVc( Note* _this, Fmvoice* rlsVc )
00068 {
00069     if ( rlsVc == _this->_vc ) {
00070         _this->_vc = FMNULL;
00071     }
00072     Note_release(_this);
00073 }
00074 void Note_release( Note* _this )
00075 {
00076     if (_this->_parent == FMNULL){ return; }
00077     Part_releaseNote((Part*)_this->_parent,_this);
00078     _this->_prevPtr = _this->_nextPtr = FMNULL;
00079     _this->_keyon = false;
00080     _this->_inUse = false;
00081     _this->_hold = false;
00082 }
00083 void Note_chgVibDpt( Note* _this )
00084 {
00085     if (_this->_parent == FMNULL){ return; }
00086     Part* pt = (Part*)_this->_parent;
00087     if (pt == FMNULL) { return; }
00088     Fmvoice_chgVibDpt(_this->_vc, Part_cc1(pt));
00089 }
00090 void Note_chgPit( Note* _this )
00091 {
00092     if (_this->_parent == FMNULL) { return; }
00093     Part* pt = (Part*)_this->_parent;
00094     if (pt == FMNULL) { return; }
00095     Fmvoice_chgPit(_this->_vc, Part_pb(pt));
00096 }
00097 static void obtainNecessaryVoice(Note* _this)
00098 {
00099     while (Asgn_chkEmpty() != true) {
00100         Asgn_releaseOneVc();
00101     } 
00102     _this->_vc = Asgn_getEmptyVc();
00103 }