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cmMidiFile.c : Finished update to cmMidiFileCalcNoteDurations() to include sostenuto pedal state.

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This commit is contained in:
kevin 2016-05-19 13:01:13 -04:00
parent a5056e4cec
commit 74acab1539
1 changed files with 73 additions and 35 deletions
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86
cmMidiFile.c
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@ -1335,15 +1335,20 @@ void cmMidiFileCalcNoteDurations2( cmMidiFileH_t h )
}
}
bool _cmMidiFileCalcNoteDur( cmMidiTrackMsg_t* m0, cmMidiTrackMsg_t* m1, int noteGateFl, bool sustainGateFl, bool sostGateFl )
void _cmMidiFileSetDur( cmMidiTrackMsg_t* m0, cmMidiTrackMsg_t* m1 )
{
// calculate the duration of the sounding note
((cmMidiChMsg_t*)m0->u.chMsgPtr)->durMicros = m1->amicro - m0->amicro;
}
bool _cmMidiFileCalcNoteDur( cmMidiTrackMsg_t* m0, cmMidiTrackMsg_t* m1, int noteGateFl, int sustainGateFl, bool sostGateFl )
{
// if the note is being kept sounding because the key is still depressed,
// the sustain pedal is down or it is being held by the sostenuto pedal ....
if( noteGateFl>0 || sustainGateFl || sostGateFl )
if( noteGateFl>0 || sustainGateFl>0 || sostGateFl )
return false; // ... do nothing
// calculate the duration of the sounding note
((cmMidiChMsg_t*)m0->u.chMsgPtr)->durMicros = m1->amicro - m0->amicro;
_cmMidiFileSetDur(m0,m1);
return true;
}
@ -1360,17 +1365,23 @@ void cmMidiFileCalcNoteDurations( cmMidiFileH_t h )
unsigned mi = cmInvalidId;
cmMidiTrackMsg_t* noteM[ kMidiNoteCnt * kMidiChCnt ]; // ptr to note-on or NULL if the note is not sounding
cmMidiTrackMsg_t* sustV[ kMidiChCnt ];
cmMidiTrackMsg_t* sostV[ kMidiChCnt ];
int noteGateM[ kMidiNoteCnt * kMidiChCnt ]; // true if the associated note key is depressed
bool sostGateM[ kMidiNoteCnt * kMidiChCnt ]; // true if the associated note was active when the sost. pedal went down
bool sustV[kMidiChCnt]; // true if the associated sustain pedal is down
bool sostV[kMidiChCnt]; // true if the associated sostenuto pedal is down
int sustGateV[ kMidiChCnt]; // true if the associated sustain pedal is down
int sostGateV[ kMidiChCnt]; // true if the associated sostenuto pedal is down
unsigned i,j;
// initialize the state tracking variables
for(i=0; i<kMidiChCnt; ++i)
{
sustV[i] = false;
sostV[i] = false;
sustV[i] = NULL;
sustGateV[i] = 0;
sostV[i] = NULL;
sostGateV[i] = 0;
for(j=0; j<kMidiNoteCnt; ++j)
{
noteM[ i*kMidiNoteCnt + j ] = NULL;
@ -1410,8 +1421,6 @@ void cmMidiFileCalcNoteDurations( cmMidiFileH_t h )
noteM[k] = m;
noteGateM[k] = 1;
}
}
else
@ -1433,7 +1442,7 @@ void cmMidiFileCalcNoteDurations( cmMidiFileH_t h )
noteGateM[k] -= 1; // update the note gate state
// update the sounding note status
if( _cmMidiFileCalcNoteDur(m0, m, noteGateM[k], sustV[ch], sostGateM[k]) )
if( _cmMidiFileCalcNoteDur(m0, m, noteGateM[k], sustGateV[ch], sostGateM[k]) )
noteM[k] = NULL;
}
}
@ -1444,10 +1453,14 @@ void cmMidiFileCalcNoteDurations( cmMidiFileH_t h )
if( cmMidiFileIsSustainPedalDown(m) )
{
// if the sustain channel is already down
if( sustV[ch] )
cmErrWarnMsg(&p->err,kSustainPedalMfRC,"%i : The sustain pedal went down twice with no intervening release.",m->uid);
//if( sustGateV[ch] )
// cmErrWarnMsg(&p->err,kSustainPedalMfRC,"%i : The sustain pedal went down twice with no intervening release.",m->uid);
sustGateV[ch] += 1;
if( sustV[ch] == NULL )
sustV[ch] = m;
sustV[ch] = true;
}
else
@ -1455,18 +1468,29 @@ void cmMidiFileCalcNoteDurations( cmMidiFileH_t h )
if( cmMidiFileIsSustainPedalUp(m) )
{
// if the sustain channel is already up
if( sustV[ch]==false )
if( sustGateV[ch]==0 )
cmErrWarnMsg(&p->err,kSustainPedalMfRC,"%i : The sustain pedal release message was received with no previous pedal down.",m->uid);
sustV[ch] = false;
if( sustGateV[ch] >= 1 )
{
sustGateV[ch] -= 1;
if( sustGateV[ch] == 0 )
{
unsigned k = ch*kMidiNoteCnt;
// for each sounding note on this channel
for(; k<ch*kMidiNoteCnt+kMidiNoteCnt; ++k)
if( noteM[k]!=NULL && _cmMidiFileCalcNoteDur(noteM[k], m, noteGateM[k], sustV[ch], sostGateM[k]) )
if( noteM[k]!=NULL && _cmMidiFileCalcNoteDur(noteM[k], m, noteGateM[k], sustGateV[ch], sostGateM[k]) )
noteM[k] = NULL;
if( sustV[ch] != NULL )
{
_cmMidiFileSetDur(sustV[ch],m);
sustV[ch] = NULL;
}
}
}
}
else
@ -1474,15 +1498,15 @@ void cmMidiFileCalcNoteDurations( cmMidiFileH_t h )
if( cmMidiFileIsSostenutoPedalDown(m) )
{
// if the sustain channel is already down
if( sostV[ch] )
cmErrWarnMsg(&p->err,kSostenutoPedalMfRC,"%i : The sostenuto pedal went down twice with no intervening release.",m->uid);
//if( sostGateV[ch] )
// cmErrWarnMsg(&p->err,kSostenutoPedalMfRC,"%i : The sostenuto pedal went down twice with no intervening release.",m->uid);
// record the notes that are active when the sostenuto pedal went down
unsigned k = ch * kMidiNoteCnt;
for(i=0; i<kMidiNoteCnt; ++i)
sostGateM[k+i] = noteGateM[k+i] > 0;
sostV[ch] = true;
sostGateV[ch] += 1;
}
else
@ -1490,20 +1514,34 @@ void cmMidiFileCalcNoteDurations( cmMidiFileH_t h )
if( cmMidiFileIsSostenutoPedalUp(m) )
{
// if the sustain channel is already up
if( sostV[ch]==false )
if( sostGateV[ch]==0 )
cmErrWarnMsg(&p->err,kSostenutoPedalMfRC,"%i : The sostenuto pedal release message was received with no previous pedal down.",m->uid);
sostV[ch] = false;
if( sostGateV[ch] >= 1 )
{
sostGateV[ch] -= 1;
// for each note on this channel
if( sostGateV[ch] == 0 )
{
unsigned k = ch*kMidiNoteCnt;
// for each note on this channel
for(; k<ch*kMidiNoteCnt+kMidiNoteCnt; ++k)
{
sostGateM[k] = false;
if( noteM[k]!=NULL && _cmMidiFileCalcNoteDur(noteM[k], m, noteGateM[k], sustV[ch], sostGateM[k]) )
if( noteM[k]!=NULL && _cmMidiFileCalcNoteDur(noteM[k], m, noteGateM[k], sustGateV[ch], sostGateM[k]) )
noteM[k] = NULL;
}
if( sostV[ch] != NULL )
{
_cmMidiFileSetDur(sostV[ch],m);
sostV[ch] = NULL;
}
}
}
}
} // for each midi file event