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cmTakeSeqBldr.h/c : Partial implementation of cmTakeSeqBldrLoadTake().

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This commit is contained in:
Kevin Larke 2015-02-24 15:43:37 -08:00
parent 9e11eb49b8
commit 4873885874
2 changed files with 175 additions and 35 deletions
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198
app/cmTakeSeqBldr.c
View File

@ -18,35 +18,79 @@
#include "cmTakeSeqBldr.h"
typedef struct cmNoteTsb_str
// Map a score event to a MIDI event.
typedef struct cmScTrkMidiTsb_str
{
unsigned mni; // midi note index as an offset from the take marker
unsigned scEvtIdx; // score event index this not is assoc'd with or -1 if it did not match
unsigned flags; // flags from cmScMatcherResult_t
} cmNoteTsb_t;
} cmScTrkMidiTsb_t;
typedef struct cmTakeTsb_str
// Score Tracking info. from a single take (time-line marker)
typedef struct cmScTrkTakeTsb_str
{
unsigned markerUid; // marker time line uid assoc'd with this take
cmNoteTsb_t* noteV; // noteV[noteN] score to midi file map recd. array.
unsigned noteN;
cmScTrkMidiTsb_t* midiV; // midiV[midiN] score to midi file map recd. array.
unsigned midiN;
bool failFl;
} cmTakeTsb_t;
} cmScTrkTakeTsb_t;
enum
{
kNoteTsbFl = 0x01,
kPedalTsbFl = 0x02,
kEnableTsbFl = 0x04
};
//
typedef struct cmMidiEvt_str
{
unsigned srcId; // marker uid or -1 if this event was manually inserted
unsigned flags; // note | pedal | enable
struct cmMidiEvt_str* ref; // previous MIDI event in time
unsigned offsetSmp; // time offset from *ref
unsigned durSmp; // duration of this MIDI event
unsigned d0; // d0 MIDI channel msg data.
unsigned d1; // d1 MIDI channel msg data
struct cmMidiEvt_str* link; // pointer to next MIDI event in list
} cmMidiEvt_t;
// This record represents a note or pedal score event
typedef struct cmScEvtTsb_str
{
unsigned flags; // note | pedal
unsigned scEvtIdx; // score event index (into scH)
cmMidiEvt_t* evtList; // list of alternate MIDI events which may render this event
} cmScEvtTsb_t;
// This record contains all the score events and and score synchronized MIDI events
// associated with a given take. Each call to cmTakeSeqBldrLoadTake() creates
// one of these records.
typedef struct cmTakeScEvtArrayTsb_str
{
unsigned tlMarkerUid; // time-line marker uid associated with this take
cmScEvtTsb_t* scEvtV; // scEvtV[scEvtN] array of score events contained by this take
unsigned scEvtN; // count of score events in this take
} cmTakeScEvtArrayTsb_t;
typedef struct
{
cmCtx_t ctx;
cmErr_t err;
cmJsonH_t jsH;
const cmChar_t* tlFn;
const cmChar_t* scFn;
const cmChar_t* tlPrefixPath;
cmCtx_t ctx; // application context
cmErr_t err; // internal error object
cmJsonH_t jsH; // JSON tree used to hold score tracker info.
const cmChar_t* tlFn; // time line filename
const cmChar_t* scFn; // score file name
const cmChar_t* tlPrefixPath; // path to time line audio and MIDI files
cmTlH_t tlH; // time-line handle
cmScH_t scH; // score handle
cmTakeTsb_t* takeV; // takeV[ takeN ]
unsigned takeN;
cmScTrkTakeTsb_t* scTrkTakeV; // score tracker scTrkTakeV[ scTrkTakeN ]
unsigned scTrkTakeN;
cmTakeScEvtArrayTsb_t* takes; // list of scEvt arrays used by this sequence
cmTakeScEvtArrayTsb_t* manual; // list of manually inserted MIDI events
cmTlH_t tlH;
cmScH_t scH;
} cmTsb_t;
@ -69,10 +113,10 @@ cmTsbRC_t _cmTsbScoreTrkFree( cmTsb_t* p )
goto errLabel;
}
for(i=0; i<p->takeN; ++i)
cmMemPtrFree(&p->takeV[i].noteV);
for(i=0; i<p->scTrkTakeN; ++i)
cmMemPtrFree(&p->scTrkTakeV[i].midiV);
cmMemPtrFree(&p->takeV);
cmMemPtrFree(&p->scTrkTakeV);
if( cmTimeLineFinalize(&p->tlH) != kOkTlRC )
rc = cmErrMsg(&p->err,kTimeLineFailTsbRC,"Time line object finalize failed.");
@ -131,13 +175,13 @@ cmTsbRC_t _cmTsbLoadScoreTrkFile( cmTsb_t* p, const cmChar_t* scoreTrkFn )
}
// count of take records
p->takeN = cmJsonChildCount(tkArrObj);
p->scTrkTakeN = cmJsonChildCount(tkArrObj);
// array of take records
p->takeV = cmMemAllocZ(cmTakeTsb_t,p->takeN);
p->scTrkTakeV = cmMemAllocZ(cmScTrkTakeTsb_t,p->scTrkTakeN);
// for each take record
for(i=0; i<p->takeN; ++i)
for(i=0; i<p->scTrkTakeN; ++i)
{
cmJsonNode_t* takeObj = NULL;
cmJsonNode_t* noteArrObj = NULL;
@ -152,8 +196,8 @@ cmTsbRC_t _cmTsbLoadScoreTrkFile( cmTsb_t* p, const cmChar_t* scoreTrkFn )
// parse the take record
if((jsRC = cmJsonMemberValues( takeObj, &errMsg,
"markerUid",kIntTId, &p->takeV[i].markerUid,
"failFl", kIntTId, &p->takeV[i].failFl,
"markerUid",kIntTId, &p->scTrkTakeV[i].markerUid,
"failFl", kIntTId, &p->scTrkTakeV[i].failFl,
"array", kArrayTId, &noteArrObj,
0)) != kOkJsRC )
{
@ -166,13 +210,13 @@ cmTsbRC_t _cmTsbLoadScoreTrkFile( cmTsb_t* p, const cmChar_t* scoreTrkFn )
}
// get the count of note records
p->takeV[i].noteN = cmJsonChildCount(noteArrObj);
p->scTrkTakeV[i].midiN = cmJsonChildCount(noteArrObj);
// allocate a note record array for this take
p->takeV[i].noteV = cmMemAllocZ(cmNoteTsb_t, p->takeV[i].noteN);
p->scTrkTakeV[i].midiV = cmMemAllocZ(cmScTrkMidiTsb_t, p->scTrkTakeV[i].midiN);
// for each note record
for(j=0; j<p->takeV[i].noteN; ++j)
for(j=0; j<p->scTrkTakeV[i].midiN; ++j)
{
cmJsonNode_t* noteObj = NULL;
@ -185,9 +229,9 @@ cmTsbRC_t _cmTsbLoadScoreTrkFile( cmTsb_t* p, const cmChar_t* scoreTrkFn )
// parse the note record
if((jsRC = cmJsonMemberValues( noteObj, &errMsg,
"mni", kIntTId, &p->takeV[i].noteV[j].mni,
"scEvtIdx", kIntTId, &p->takeV[i].noteV[j].scEvtIdx,
"flags", kIntTId, &p->takeV[i].noteV[j].flags,
"mni", kIntTId, &p->scTrkTakeV[i].midiV[j].mni,
"scEvtIdx", kIntTId, &p->scTrkTakeV[i].midiV[j].scEvtIdx,
"flags", kIntTId, &p->scTrkTakeV[i].midiV[j].flags,
0)) != kOkJsRC )
{
if( jsRC == kNodeNotFoundJsRC && errMsg != NULL )
@ -207,6 +251,30 @@ cmTsbRC_t _cmTsbLoadScoreTrkFile( cmTsb_t* p, const cmChar_t* scoreTrkFn )
return rc;
}
// Return the count of score events inside a given marker.
unsigned _cmTsbScoreTrkMarkerEventCount( cmTsb_t* p, unsigned markUid )
{
unsigned i,j;
unsigned minScEvtIdx = INT_MAX;
unsigned maxScEvtIdx = 0;
for(i=0; i<p->scTrkTakeN; ++i)
for(j=0; j<p->scTrkTakeV[i].midiN; ++j)
{
if( p->scTrkTakeV[i].midiV[j].scEvtIdx < minScEvtIdx )
minScEvtIdx = p->scTrkTakeV[i].midiV[j].scEvtIdx;
if( p->scTrkTakeV[i].midiV[j].scEvtIdx > maxScEvtIdx )
maxScEvtIdx = p->scTrkTakeV[i].midiV[j].scEvtIdx;
}
if( maxScEvtIdx < minScEvtIdx )
return 0;
return (maxScEvtIdx - minScEvtIdx) + 1;
}
cmTsbRC_t cmTakeSeqBldrAlloc( cmCtx_t* ctx, cmTakeSeqBldrH_t* hp )
{
cmTsbRC_t rc;
@ -287,6 +355,76 @@ cmTsbRC_t cmTakeSeqBldrInitialize( cmTakeSeqBldrH_t h, const cmChar_t* scoreTrkF
cmTsbRC_t cmTakeSeqBldrLoadTake( cmTakeSeqBldrH_t h, unsigned tlMarkUid, bool overwriteFL )
{
cmTsbRC_t rc = kOkTsbRC;
cmTsb_t* p = _cmTsbHandleToPtr(h);
cmTlMarker_t* mark = NULL;
cmTlMidiFile_t* mf = NULL;
cmMidiFileH_t mfH = cmMidiFileNullHandle;
// get a pointer to the time-line marker object
if((mark = cmTlMarkerObjPtr( p->tlH, cmTimeLineIdToObj( p->tlH, cmInvalidId, tlMarkUid))) == NULL )
{
rc = cmErrMsg(&p->err,kInvalidArgTsbRC,"The time-line marker uid '%i' is not valid.",tlMarkUid);
goto errLabel;
}
// get the name of the MIDI file which contains the marker
if((mf = cmTimeLineMidiFileAtTime( p->tlH, mark->obj.seqId, mark->obj.seqSmpIdx )) == NULL )
{
rc = cmErrMsg(&p->err,kInvalidArgTsbRC,"The time-line marker '%i' does not intersect with a MIDI file.",tlMarkUid);
goto errLabel;
}
// open the MIDI file
if( cmMidiFileOpen( cmMidiFileName(mf->h), &mfH, &p->ctx ) != kOkMfRC )
{
rc = cmErrMsg(&p->err,kInvalidArgTsbRC,"The MIDI file '%s' could not be opened.", cmStringNullGuard(cmMidiFileName(mf->h)));
goto errLabel;
}
// convert the dtick field to absolute sample indexes
cmMidiFileTickToSamples( mfH, cmTimeLineSampleRate(p->tlH), true );
// calculate MIDI note and pedal durations (see cmMidiChMsg_t.durTicks)
cmMidiFileCalcNoteDurations( mfH );
// convert the marker beg/end sample position to be relative to the MIDI file start time
unsigned bsi = mark->obj.seqSmpIdx - mf->obj.seqSmpIdx;
unsigned esi = mark->obj.seqSmpIdx + mark->obj.durSmpCnt - mf->obj.seqSmpIdx;
unsigned i = 0;
unsigned n = cmMidiFileMsgCount(mfH);
const cmMidiTrackMsg_t** a = cmMidiFileMsgArray(mfH);
// seek to the first MIDI msg after bsi
for(i=0; i<n; ++i)
if( a[i]->dtick >= bsi )
break;
if( i == n )
{
rc = cmErrMsg(&p->err,kInvalidArgTsbRC,"No MIDI events were found in the marker.");
goto errLabel;
}
// for each MIDI message between bsi and esi
for(; i<n && a[i]->dtick < esi; ++i)
{
const cmMidiTrackMsg_t* m = a[i];
switch( m->status )
{
case kNoteOffMdId:
case kNoteOnMdId:
case kCtlMdId:
break;
}
}
errLabel:
if( cmMidiFileClose(&mfH) != kOkMfRC )
rc = cmErrMsg(&p->err,kMidiFileFailTsbRC,"MIDI file close failed.");
return rc;
}

6
app/cmTakeSeqBldr.h
View File

@ -12,7 +12,9 @@ extern "C" {
kJsonFailTsbRC,
kParseFailTsbRC,
kTimeLineFailTsbRC,
kScoreFailTsbRC
kScoreFailTsbRC,
kInvalidArgTsbRC,
kMidiFileFailTsbRC
};
typedef cmRC_t cmTsbRC_t;
@ -47,7 +49,7 @@ extern "C" {
cmTsbRC_t cmTakeSeqBldrInsertScoreNotes( cmTakeSeqBldrH_t h, unsigned begScEvtIdx, unsigned endScEvtId );
cmTsbRC_t cmTakeSeqBldrRemoveScoreNotes( cmTakeSeqBldrH_t h, unsigned begScEvtIdx, unsigned endScEvtId );
enum { kMarkTsbFl = 0x01, kTlNoteTsbFl=0x02, kScoreNoteTsbFl = 0x04, kPedalTsbFl = 0x08 };
//enum { kMarkTsbFl = 0x01, kTlNoteTsbFl=0x02, kScoreNoteTsbFl = 0x04, kPedalTsbFl = 0x08 };
cmTsbRC_t cmTakeSeqBldrSelectEnable( cmTakeSeqBldrH_t h, unsigned flags, unsigned id, bool selectFl );
cmTsbRC_t cmTakeSeqBldrEnableNote( cmTakeSeqBldrH_t h, unsigned ssqId, bool enableFl );