9e11eb49b8
the length of time the pedal is held down and the 'pitch' field is set to the MIDI id of the pedal.
281 lines
11 KiB
C
281 lines
11 KiB
C
#ifndef cmScore_h
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#define cmScore_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum
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{
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kOkScRC = cmOkRC,
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kCsvFailScRC,
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kSyntaxErrScRC,
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kInvalidIdxScRC,
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kTimeLineFailScRC,
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kInvalidDynRefCntScRC,
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kMidiFileFailScRC,
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kPedalInvalidScRC
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};
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enum
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{
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kInvalidEvtScId = 0,
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kTimeSigEvtScId,
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kKeySigEvtScId,
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kTempoEvtScId,
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kTrackEvtScId,
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kTextEvtScId,
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kNameEvtScId,
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kEOTrackEvtScId,
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kCopyEvtScId,
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kBlankEvtScId,
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kBarEvtScId,
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kPgmEvtScId,
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kCtlEvtScId,
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kNonEvtScId,
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kPedalEvtScId
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};
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// Flags used by cmScoreEvt_t.flags
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enum
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{
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kEvenScFl = 0x001, // This note is marked for evenness measurement
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kDynScFl = 0x002, // This note is marked for dynamics measurement
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kTempoScFl = 0x004, // This note is marked for tempo measurement
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kSkipScFl = 0x008, // This isn't a real event (e.g. tied note) skip over it
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kGraceScFl = 0x010, // This is a grace note
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kInvalidScFl = 0x020, // This note has a calculated time
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kPedalDnFl = 0x040, // This is a pedal down event (pitch holds the pedal id and durSecs holds the time the pedal will remain down.)
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kPedalUpFl = 0x080 // This is a pedal up event (pitch holds the pedal id)
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};
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// Id's used by cmScoreSet_t.varId and as indexes into
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// cmScoreSection_t.vars[].
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enum
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{
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kInvalidVarScId,
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kEvenVarScId,
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kDynVarScId,
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kTempoVarScId,
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kScVarCnt
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};
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struct cmScoreLoc_str;
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struct cmScoreSet_str;
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// The score can be divided into arbitrary non-overlapping sections.
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typedef struct
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{
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const cmChar_t* label; // section label
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unsigned index; // index of this record in the internal section array
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struct cmScoreLoc_str* locPtr; // location where this section starts
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unsigned begEvtIndex; // score element index where this section starts
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unsigned setCnt; // Count of elements in setArray[]
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struct cmScoreSet_str** setArray; // Ptrs to sets which are applied to this section.
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double vars[ kScVarCnt ]; // Set to DBL_MAX by default.
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} cmScoreSection_t;
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typedef struct
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{
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unsigned type; // Event type
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double secs; // Time location in seconds
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double durSecs; // Duration in seconds
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unsigned index; // Index of this event in the event array.
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unsigned locIdx; // Index of the location containing this event
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cmMidiByte_t pitch; // MIDI pitch of this note or the MIDI pedal id of pedal down/up msg (64=sustain 65=sostenuto 66=soft)
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unsigned flags; // Attribute flags for this event
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unsigned dynVal; // Dynamcis value pppp to ffff (1 to 11) for this note.
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double frac; // Note's time value for tempo and non-grace evenness notes.
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unsigned barNumb; // Bar id of the measure containing this event.
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unsigned barNoteIdx; // Index of this note in this bar
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unsigned csvRowNumb; // File row number (not index) from which this record originated
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unsigned perfSmpIdx; // Time this event was performed or cmInvalidIdx if the event was not performed.
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unsigned perfVel; // Velocity of the performed note or 0 if the note was not performed.
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unsigned perfDynLvl; // Index into dynamic level ref. array assoc'd with perfVel
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unsigned line; // Line number of this event in the score file.
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} cmScoreEvt_t;
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// A 'set' is a collection of events that are grouped in time and all marked with a given attribute.
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// (e.g. eveness, tempo, dynamcs ... )
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typedef struct cmScoreSet_str
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{
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unsigned varId; // See kXXXVarScId flags above
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cmScoreEvt_t** eleArray; // Events that make up this set in time order
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unsigned eleCnt; //
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cmScoreSection_t** sectArray; // Sections this set will be applied to
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unsigned sectCnt; //
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unsigned* symArray; // symArray[sectCnt] - symbol name of all variables represented by this set (e.g '1a-e', '1b-e', '2-t', etc)
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unsigned* costSymArray; // costSymArray[sectCnt] - same as symbols in symArray[] with 'c' prepended to front
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bool doneFl;
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double value;
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struct cmScoreSet_str* llink; // cmScoreLoc_t setList link
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} cmScoreSet_t;
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typedef enum
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{
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kInvalidScMId,
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kRecdBegScMId,
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kRecdEndScMId,
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kFadeScMId,
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kPlayBegScMId,
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kPlayEndScMId
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} cmMarkScMId_t;
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// score markers
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typedef struct cmScoreMarker_str
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{
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cmMarkScMId_t markTypeId; // marker type
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unsigned labelSymId; // marker label
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struct cmScoreLoc_str* scoreLocPtr; // score location of the marker
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unsigned csvRowIdx; // score CSV file line assoc'd w/ this marker
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struct cmScoreMarker_str* link; // cmScoreLoc_t.markList links
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} cmScoreMarker_t;
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// All events which are simultaneous are collected into a single
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// cmScoreLoc_t record.
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typedef struct cmScoreLoc_str
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{
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unsigned index; // index of this location record
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double secs; // Time of this location
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unsigned evtCnt; // Count of events in evtArray[].
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cmScoreEvt_t** evtArray; // Events which occur at this time.
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unsigned barNumb; // Bar number this event is contained by.
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cmScoreSet_t* setList; // Set's which end on this time location (linked through cmScoreSet_t.llink)
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cmScoreSection_t* begSectPtr; // NULL if this location does not start a section
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cmScoreMarker_t* markList; // List of markers assigned to this location
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} cmScoreLoc_t;
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typedef void (*cmScCb_t)( void* arg, const void* data, unsigned byteCnt );
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typedef cmRC_t cmScRC_t;
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typedef cmHandle_t cmScH_t;
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extern cmScH_t cmScNullHandle;
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const cmChar_t* cmScEvtTypeIdToLabel( unsigned id );
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const cmChar_t* cmScDynIdToLabel( unsigned id );
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// Initialize a score object from a CSV File generated from a score spreadsheet.
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// The dynRefArray[dynRefCnt] and cbFunc(cbArg) are optional if these
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// features are not used.
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// If provided the dynRefArray[] is copied into an internal array.
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// The physical array passed here therefore does not need to remain valid.
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// Set 'srate' to zero if the score will not be used to perform measurement calculations.
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// The symbol table is only necessary if valid symbols are to be assigned to the cmScoreSet_t.symArray[].
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cmScRC_t cmScoreInitialize( cmCtx_t* ctx, cmScH_t* hp, const cmChar_t* fn, double srate, const unsigned* dynRefArray, unsigned dynRefCnt, cmScCb_t cbFunc, void* cbArg, cmSymTblH_t stH );
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cmScRC_t cmScoreFinalize( cmScH_t* hp );
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// Filename of last successfuly loaded score file.
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const cmChar_t* cmScoreFileName( cmScH_t h );
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// Sample rate as set in cmScoreInitialize()
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double cmScoreSampleRate( cmScH_t h );
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// Validate the score handle
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bool cmScoreIsValid( cmScH_t h );
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// Access the score data.
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unsigned cmScoreEvtCount( cmScH_t h );
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cmScoreEvt_t* cmScoreEvt( cmScH_t h, unsigned idx );
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// Given a bar number return the associated 'bar' event record.
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cmScoreEvt_t* cmScoreBarEvt( cmScH_t h, unsigned barNumb );
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// Access section records
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unsigned cmScoreSectionCount( cmScH_t h );
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cmScoreSection_t* cmScoreSection( cmScH_t h, unsigned idx );
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// Access the score location data
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unsigned cmScoreLocCount( cmScH_t h );
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cmScoreLoc_t* cmScoreLoc( cmScH_t h, unsigned idx );
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void cmScorePrintLoc( cmScH_t h );
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// Return the location associated with a given score event.
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cmScoreLoc_t* cmScoreEvtLoc( cmScH_t h, const cmScoreEvt_t* evt );
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// Return the count of sets.
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unsigned cmScoreSetCount( cmScH_t h );
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unsigned cmScoreMarkerLabelCount( cmScH_t h );
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unsigned cmScoreMarkerLabelSymbolId( cmScH_t h, unsigned idx );
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const cmScoreMarker_t* cmScoreMarker( cmScH_t h, cmMarkScMId_t markMId, unsigned labelSymId );
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// Make callbacks for all events in the score. The callbacks
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// contain cmScMsg_t records serialized as a byte stream.
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// Use cmScoreDecode() to convert the byte string to a
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// cmScMsg_t record.
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cmScRC_t cmScoreSeqNotify( cmScH_t h );
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void cmScoreClearPerfInfo( cmScH_t h );
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// Assign 'smpIdx' and 'vel' to the event matching 'pitch' at 'locIdx'
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// but do not trigger any variable calculations. Return true if as a
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// result of this call all events assigned to 'locIdx' have been received
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// otherwise return false.
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bool cmScoreSetPerfEvent( cmScH_t h, unsigned locIdx, unsigned smpIdx, unsigned pitch, unsigned vel );
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// Assign 'smpIdx' and 'vel' to the event matching 'pitch' at 'locIdx'
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// but and trigger any variable calculations which may happen on, or before, 'locIdx'.
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void cmScoreExecPerfEvent( cmScH_t h, unsigned locIdx, unsigned smpIdx, unsigned pitch, unsigned vel );
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// Assign 'value' to the section at, or before, 'locIdx'.
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void cmScoreSetPerfValue( cmScH_t h, unsigned locIdx, unsigned varId, double value );
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// Set the performed dynamic level of a score event.
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void cmScoreSetPerfDynLevel( cmScH_t h, unsigned evtIdx, unsigned dynLvl );
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typedef enum
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{
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kInvalidMsgScId,
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kBeginMsgScId,
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kEventMsgScId,
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kSectionMsgScId,
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kEndMsgScId,
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kVarMsgScId,
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kDynMsgScId
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} cmScMsgTypeId_t;
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typedef struct
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{
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unsigned varId; // see kXXXVarScId from cmScoreSet_t.varId
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double value; // value of a variable
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} cmScMeas_t;
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typedef struct
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{
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unsigned evtIdx;
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unsigned dynLvl;
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} cmScDyn_t;
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typedef struct
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{
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cmScMsgTypeId_t typeId;
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union
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{
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cmScoreEvt_t evt; // only used when typeId == kEventMsgScId
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cmScMeas_t meas; // only used when typeId == kVarMsgScId
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cmScoreSection_t sect; // only used when typeId == kSectionMsgScId
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cmScDyn_t dyn; // only used when typeId == kDynLvlMsgScId
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} u;
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} cmScMsg_t;
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// Decode a serialized cmScMsg_t from a byte stream as passed to the
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// cmScCb_t function.
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cmScRC_t cmScoreDecode( const void* msg, unsigned msgByteCnt, cmScMsg_t* );
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void cmScorePrint( cmScH_t h, cmRpt_t* rpt );
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// Generate a new score file from a MIDI file.
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cmScRC_t cmScoreFileFromMidi( cmCtx_t* ctx, const cmChar_t* midiFn, const cmChar_t* scoreFn );
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void cmScoreTest( cmCtx_t* ctx, const cmChar_t* fn );
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#ifdef __cplusplus
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}
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#endif
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#endif
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