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cmMidiFile.c : Initial addition of new calc note durations using sostenuto pedal.

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This commit is contained in:
kevin 2016-05-12 19:04:12 -04:00
parent 6e039c7b74
commit 2bc195a625
1 changed files with 126 additions and 0 deletions
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126
cmMidiFile.c
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@ -1335,6 +1335,132 @@ void cmMidiFileCalcNoteDurations( cmMidiFileH_t h )
} }
} }
void cmMidiFileCalcNoteDurations2( cmMidiFileH_t h )
{
_cmMidiFile_t* p;
if((p = _cmMidiFileHandleToPtr(h)) == NULL )
return;
if( p->msgN == 0 )
return;
unsigned mi = cmInvalidId;
cmMidiTrackMsg_t* noteM[ kMidiNoteCnt * kMidiChCnt ]; // ptr to note-on or NULL if the note is not sounding
bool noteGateM[ kMidiNoteCnt * kMidiChCnt ]; // true if the associated note key is depressed
bool sustV[kMidiChCnt]; //
bool sostV[kMidiChCnt]; //
unsigned i,j;
for(i=0; i<kMidiChCnt; ++i)
{
sustV[i] = false;
sostV[i] = false;
for(j=0; j<kMidiNoteCnt; ++j)
{
noteM[ i*kMidiNoteCnt + j ] = NULL;
noteGateM[ i*kMidiNoteCnt + j ] = false;
}
}
for(mi=0; mi<p->msgN; ++mi)
{
cmMidiTrackMsg_t* m = p->msgV[mi];
assert( mi==0 || (mi>0 && m->amicro >= p->msgV[mi-1]->amicro) );
// ignore all non-channel messages
if( !cmMidiIsChStatus( m->status ) )
continue;
cmMidiByte_t ch = m->u.chMsgPtr->ch;
cmMidiByte_t d0 = m->u.chMsgPtr->d0;
cmMidiByte_t d1 = m->u.chMsgPtr->d1;
if( cmMidiFileIsNoteOn(m) )
{
unsigned k = ch*kMidiNoteCnt + d0;
cmMidiTrackMsg_t* m0 = noteM[k];
// a key was pressed - so it should not be currently down
if( noteGateM[k] )
{
assert( m0 != NULL );
cmErrWarnMsg(&p->err,kMissingNoteOffMfRC,"Missing note-off for note-on:%s",cmMidiToSciPitch(d0,NULL,0));
}
noteM[k] = m;
noteGateM[k] = true;
}
else
if( cmMidiFileIsNoteOff(m) )
{
unsigned k = ch*kMidiNoteCnt + d0;
cmMidiTrackMsg_t* m0 = noteM[k];
// a key was released - so it should not be currently up
if( noteGateM[k]==false )
{
assert( m0 != NULL );
cmErrWarnMsg(&p->err,kMissingNoteOffMfRC,"Missing note-on for note-off:%s",cmMidiToSciPitch(d0,NULL,0));
}
// FIX: release note here - if pedal is not down
noteM[k] = NULL;
noteGateM[k] = false;
}
else
if( cmMidiFileIsSustainPedalDown(m) )
{
// if the sustain channel is already down
if( sustV[ch] )
{
cmErrWarnMsg(&p->err,kSustainPedalMfRC,"The sustain pedal went down twice with no intervening release.");
}
sustV[ch] = true;
}
else
if( cmMidiFileIsSutainPedalUp(m) )
{
// if the sustain channel is already up
if( sustV[ch]==false )
{
cmErrWarnMsg(&p->err,kSustainPedalMfRC,"The sustain pedal release message was received with no previous pedal down.");
}
// FIX: release sustaining notes here
sustV[ch] = false;
}
else
if( cmMidiFileIsSostenutoPedalDown(m) )
{
// if the sustain channel is already down
if( sostV[ch] )
{
cmErrWarnMsg(&p->err,kSostenutoPedalMfRC,"The sostenuto pedal went down twice with no intervening release.");
}
sostV[ch] = true;
}
else
if( cmMidiFileIsSostenutoPedalUp(m) )
{
// if the sustain channel is already up
if( sostV[ch]==false )
{
cmErrWarnMsg(&p->err,kSostenutoPedalMfRC,"The sostenuto pedal release message was received with no previous pedal down.");
}
// FIX: release sostenuto notes here
sostV[ch] = false;
}
}
}
void cmMidiFileSetDelay( cmMidiFileH_t h, unsigned ticks ) void cmMidiFileSetDelay( cmMidiFileH_t h, unsigned ticks )
{ {