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cwMidiFile.cpp : Fix problem in _setAccumulateTicks() where initial dtick value as incorrect.

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This commit is contained in:
kevin 2024-07-07 13:35:51 -04:00
parent 8d8714d422
commit 5e6d0814cf
1 changed files with 19 additions and 26 deletions
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41
cwMidiFile.cpp
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@ -502,9 +502,8 @@ namespace cw
trackMsg_t* nextTrkMsg[ p->trkN ]; // next msg in each track trackMsg_t* nextTrkMsg[ p->trkN ]; // next msg in each track
unsigned long long atick = 0; unsigned long long atick = 0;
unsigned i; unsigned i;
bool fl = true;
// iniitalize nextTrkTick[] and nextTrkMsg[] to the first msg in each track // iniitalize nextTrkMsg[] to the first msg in each track
for(i=0; i<p->trkN; ++i) for(i=0; i<p->trkN; ++i)
if((nextTrkMsg[i] = p->trkV[i].base) != NULL ) if((nextTrkMsg[i] = p->trkV[i].base) != NULL )
nextTrkMsg[i]->atick = nextTrkMsg[i]->dtick; nextTrkMsg[i]->atick = nextTrkMsg[i]->dtick;
@ -513,7 +512,7 @@ namespace cw
{ {
unsigned k = kInvalidIdx; unsigned k = kInvalidIdx;
// find the trk which has the next msg (min atick time) // find the index of the track in nextTrkMsg[] which has the min atick
for(i=0; i<p->trkN; ++i) for(i=0; i<p->trkN; ++i)
if( nextTrkMsg[i]!=NULL && (k==kInvalidIdx || nextTrkMsg[i]->atick < nextTrkMsg[k]->atick) ) if( nextTrkMsg[i]!=NULL && (k==kInvalidIdx || nextTrkMsg[i]->atick < nextTrkMsg[k]->atick) )
k = i; k = i;
@ -522,13 +521,6 @@ namespace cw
if( k == kInvalidIdx ) if( k == kInvalidIdx )
break; break;
if( fl && nextTrkMsg[k]->dtick > 0 )
{
fl = false;
nextTrkMsg[k]->dtick = 1;
nextTrkMsg[k]->atick = 1;
}
// store the current atick // store the current atick
atick = nextTrkMsg[k]->atick; atick = nextTrkMsg[k]->atick;
@ -544,20 +536,20 @@ namespace cw
void _setAbsoluteTime( file_t* mfp ) void _setAbsoluteTime( file_t* mfp )
{ {
const trackMsg_t** msgV = _msgArray(mfp); const trackMsg_t** msgV = _msgArray(mfp);
double microsPerQN = 60000000/120; // default tempo; double microsPerQN = 60000000.0/120.0; // default tempo;
double microsPerTick = microsPerQN / mfp->ticksPerQN; double microsPerTick = microsPerQN / mfp->ticksPerQN;
unsigned long long amicro = 0; unsigned long long amicro = 0;
unsigned i; unsigned i;
for(i=0; i<mfp->msgN; ++i) for(i=0; i<mfp->msgN; ++i)
{ {
trackMsg_t* mp = (trackMsg_t*)msgV[i]; // cast away const trackMsg_t* mp = (trackMsg_t*)msgV[i]; // cast away const
unsigned dtick = 0; unsigned dtick = 0;
if( i > 0 ) if( i > 0 )
{ {
// atick must have already been set and sorted // atick must have already been set and sortedh
assert( mp->atick >= msgV[i-1]->atick ); assert( mp->atick >= msgV[i-1]->atick );
dtick = mp->atick - msgV[i-1]->atick; dtick = mp->atick - msgV[i-1]->atick;
} }
@ -568,7 +560,7 @@ namespace cw
// track tempo changes // track tempo changes
if( mp->status == kMetaStId && mp->metaId == kTempoMdId ) if( mp->status == kMetaStId && mp->metaId == kTempoMdId )
microsPerTick = mp->u.iVal / mfp->ticksPerQN; microsPerTick = (double)mp->u.iVal / mfp->ticksPerQN;
} }
} }
@ -1331,7 +1323,7 @@ cw::rc_t cw::midi::file::open_csv( handle_t& hRef, const char* csv_fname )
unsigned lineN = 0; unsigned lineN = 0;
unsigned line_idx = 0; unsigned line_idx = 0;
double asecs = 0; //double asecs = 0;
unsigned uid = kInvalidId; unsigned uid = kInvalidId;
unsigned dtick = 0; unsigned dtick = 0;
@ -1372,10 +1364,10 @@ cw::rc_t cw::midi::file::open_csv( handle_t& hRef, const char* csv_fname )
//printf("%i %i tpqn:%i bpm:%i dtick:%i ch:%i st:%i d0:%i d1:%i\n",line_idx,uid,TpQN,BpM,dtick,ch,status,d0,d1); //printf("%i %i tpqn:%i bpm:%i dtick:%i ch:%i st:%i d0:%i d1:%i\n",line_idx,uid,TpQN,BpM,dtick,ch,status,d0,d1);
double ticks_per_sec = TpQN * BpM / 60; //double ticks_per_sec = TpQN * BpM / 60;
double dsecs = dtick * ticks_per_sec; //double dsecs = dtick * ticks_per_sec;
asecs += dsecs; //asecs += dsecs;
if( line_idx == 0 ) if( line_idx == 0 )
_init(p,1,TpQN); _init(p,1,TpQN);
@ -1400,9 +1392,10 @@ cw::rc_t cw::midi::file::open_csv( handle_t& hRef, const char* csv_fname )
} }
} }
TpQN = 0; TpQN = 0;
BpM = 0; BpM = 0;
status = 0;
dtick = 0;
} }
if( rc == kEofRC ) if( rc == kEofRC )