libcm is a C development framework with an emphasis on audio signal processing applications.
Du kannst nicht mehr als 25 Themen auswählen Themen müssen mit entweder einem Buchstaben oder einer Ziffer beginnen. Sie können Bindestriche („-“) enthalten und bis zu 35 Zeichen lang sein.

cmScore.h 10KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272
  1. #ifndef cmScore_h
  2. #define cmScore_h
  3. #ifdef __cplusplus
  4. extern "C" {
  5. #endif
  6. enum
  7. {
  8. kOkScRC = cmOkRC,
  9. kCsvFailScRC,
  10. kSyntaxErrScRC,
  11. kInvalidIdxScRC,
  12. kTimeLineFailScRC,
  13. kInvalidDynRefCntScRC,
  14. kMidiFileFailScRC
  15. };
  16. enum
  17. {
  18. kInvalidEvtScId = 0,
  19. kTimeSigEvtScId,
  20. kKeySigEvtScId,
  21. kTempoEvtScId,
  22. kTrackEvtScId,
  23. kTextEvtScId,
  24. kEOTrackEvtScId,
  25. kCopyEvtScId,
  26. kBlankEvtScId,
  27. kBarEvtScId,
  28. kPgmEvtScId,
  29. kCtlEvtScId,
  30. kNonEvtScId
  31. };
  32. // Flags used by cmScoreEvt_t.flags
  33. enum
  34. {
  35. kEvenScFl = 0x001, // This note is marked for evenness measurement
  36. kDynScFl = 0x002, // This note is marked for dynamics measurement
  37. kTempoScFl = 0x004, // This note is marked for tempo measurement
  38. kSkipScFl = 0x008, // This isn't a real event (e.g. tied note) skip over it
  39. kGraceScFl = 0x010, // This is a grace note
  40. kInvalidScFl = 0x020 // This note has a calculated time
  41. };
  42. // Id's used by cmScoreSet_t.varId and as indexes into
  43. // cmScoreSection_t.vars[].
  44. enum
  45. {
  46. kEvenVarScId,
  47. kDynVarScId,
  48. kTempoVarScId,
  49. kScVarCnt
  50. };
  51. struct cmScoreLoc_str;
  52. struct cmScoreSet_str;
  53. // The score can be divided into arbitrary non-overlapping sections.
  54. typedef struct
  55. {
  56. const cmChar_t* label; // section label
  57. unsigned index; // index of this record in the internal section array
  58. struct cmScoreLoc_str* locPtr; // location where this section starts
  59. unsigned begEvtIndex; // score element index where this section starts
  60. unsigned setCnt; // Count of elements in setArray[]
  61. struct cmScoreSet_str** setArray; // Ptrs to sets which are applied to this section.
  62. double vars[ kScVarCnt ]; // Set to DBL_MAX by default.
  63. } cmScoreSection_t;
  64. typedef struct
  65. {
  66. unsigned type; // Event type
  67. double secs; // Time location in seconds
  68. double durSecs; // Duration in seconds
  69. unsigned index; // Index of this event in the event array.
  70. unsigned locIdx; // Index of the location containing this event
  71. cmMidiByte_t pitch; // MIDI pitch of this note
  72. unsigned flags; // Attribute flags for this event
  73. unsigned dynVal; // Dynamcis value pppp to ffff (1 to 11) for this note.
  74. double frac; // Note's time value for tempo and non-grace evenness notes.
  75. unsigned barNumb; // Bar id of the measure containing this event.
  76. unsigned barNoteIdx; // Index of this note in this bar
  77. unsigned csvRowNumb; // File row number (not index) from which this record originated
  78. unsigned perfSmpIdx; // Time this event was performed or cmInvalidIdx if the event was not performed.
  79. unsigned perfVel; // Velocity of the performed note or 0 if the note was not performed.
  80. unsigned perfDynLvl; // Index into dynamic level ref. array assoc'd with perfVel
  81. unsigned line; // Line number of this event in the score file.
  82. } cmScoreEvt_t;
  83. typedef struct cmScoreSet_str
  84. {
  85. unsigned varId; // See kXXXVarScId flags above
  86. cmScoreEvt_t** eleArray; // Events that make up this set in time order
  87. unsigned eleCnt; //
  88. cmScoreSection_t** sectArray; // Sections this set will be applied to
  89. unsigned sectCnt; //
  90. unsigned* symArray; // symArray[sectCnt] - symbol name of all variables represented by this set (e.g '1a-e', '1b-e', '2-t', etc)
  91. unsigned* costSymArray; // costSymArray[sectCnt] - same as symbols in symArray[] with 'c' prepended to front
  92. bool doneFl;
  93. double value;
  94. struct cmScoreSet_str* llink; // cmScoreLoc_t setList link
  95. } cmScoreSet_t;
  96. typedef enum
  97. {
  98. kInvalidScMId,
  99. kRecdBegScMId,
  100. kRecdEndScMId,
  101. kFadeScMId,
  102. kPlayBegScMId,
  103. kPlayEndScMId
  104. } cmMarkScMId_t;
  105. // score markers
  106. typedef struct cmScoreMarker_str
  107. {
  108. cmMarkScMId_t markTypeId; // marker type
  109. unsigned labelSymId; // marker label
  110. struct cmScoreLoc_str* scoreLocPtr; // score location of the marker
  111. unsigned csvRowIdx; // score CSV file line assoc'd w/ this marker
  112. struct cmScoreMarker_str* link; // cmScoreLoc_t.markList links
  113. } cmScoreMarker_t;
  114. // All events which are simultaneous are collected into a single
  115. // cmScoreLoc_t record.
  116. typedef struct cmScoreLoc_str
  117. {
  118. unsigned index; // index of this location record
  119. double secs; // Time of this location
  120. unsigned evtCnt; // Count of events in evtArray[].
  121. cmScoreEvt_t** evtArray; // Events which occur at this time.
  122. unsigned barNumb; // Bar number this event is contained by.
  123. cmScoreSet_t* setList; // Set's which end on this time location (linked through cmScoreSet_t.llink)
  124. cmScoreSection_t* begSectPtr; // NULL if this location does not start a section
  125. cmScoreMarker_t* markList; // List of markers assigned to this location
  126. } cmScoreLoc_t;
  127. typedef void (*cmScCb_t)( void* arg, const void* data, unsigned byteCnt );
  128. typedef cmRC_t cmScRC_t;
  129. typedef cmHandle_t cmScH_t;
  130. extern cmScH_t cmScNullHandle;
  131. const cmChar_t* cmScEvtTypeIdToLabel( unsigned id );
  132. const cmChar_t* cmScDynIdToLabel( unsigned id );
  133. // Initialize a score object from a CSV File generated from a score spreadsheet.
  134. // The dynRefArray[dynRefCnt] and cbFunc(cbArg) are optional if these
  135. // features are not used.
  136. // If provided the dynRefArray[] is copied into an internal array.
  137. // The physical array passed here therefore does not need to remain valid.
  138. // Set 'srate' to zero if the score will not be used to perform measurement calculations.
  139. // The symbol table is only necessary if valid symbols are to be assigned to the cmScoreSet_t.symArray[].
  140. 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 );
  141. cmScRC_t cmScoreFinalize( cmScH_t* hp );
  142. // Filename of last successfuly loaded score file.
  143. const cmChar_t* cmScoreFileName( cmScH_t h );
  144. // Sample rate as set in cmScoreInitialize()
  145. double cmScoreSampleRate( cmScH_t h );
  146. // Validate the score handle
  147. bool cmScoreIsValid( cmScH_t h );
  148. // Access the score data.
  149. unsigned cmScoreEvtCount( cmScH_t h );
  150. cmScoreEvt_t* cmScoreEvt( cmScH_t h, unsigned idx );
  151. // Given a bar number return the associated 'bar' event record.
  152. cmScoreEvt_t* cmScoreBarEvt( cmScH_t h, unsigned barNumb );
  153. // Access section records
  154. unsigned cmScoreSectionCount( cmScH_t h );
  155. cmScoreSection_t* cmScoreSection( cmScH_t h, unsigned idx );
  156. // Access the score location data
  157. unsigned cmScoreLocCount( cmScH_t h );
  158. cmScoreLoc_t* cmScoreLoc( cmScH_t h, unsigned idx );
  159. void cmScorePrintLoc( cmScH_t h );
  160. // Return the location associated with a given score event.
  161. cmScoreLoc_t* cmScoreEvtLoc( cmScH_t h, const cmScoreEvt_t* evt );
  162. // Return the count of sets.
  163. unsigned cmScoreSetCount( cmScH_t h );
  164. unsigned cmScoreMarkerLabelCount( cmScH_t h );
  165. unsigned cmScoreMarkerLabelSymbolId( cmScH_t h, unsigned idx );
  166. const cmScoreMarker_t* cmScoreMarker( cmScH_t h, cmMarkScMId_t markMId, unsigned labelSymId );
  167. // Make callbacks for all events in the score. The callbacks
  168. // contain cmScMsg_t records serialized as a byte stream.
  169. // Use cmScoreDecode() to convert the byte string to a
  170. // cmScMsg_t record.
  171. cmScRC_t cmScoreSeqNotify( cmScH_t h );
  172. void cmScoreClearPerfInfo( cmScH_t h );
  173. // Assign 'smpIdx' and 'vel' to the event matching 'pitch' at 'locIdx'
  174. // but do not trigger any variable calculations. Return true if as a
  175. // result of this call all events assigned to 'locIdx' have been received
  176. // otherwise return false.
  177. bool cmScoreSetPerfEvent( cmScH_t h, unsigned locIdx, unsigned smpIdx, unsigned pitch, unsigned vel );
  178. // Assign 'smpIdx' and 'vel' to the event matching 'pitch' at 'locIdx'
  179. // but and trigger any variable calculations which may happen on, or before, 'locIdx'.
  180. void cmScoreExecPerfEvent( cmScH_t h, unsigned locIdx, unsigned smpIdx, unsigned pitch, unsigned vel );
  181. // Assign 'value' to the section at, or before, 'locIdx'.
  182. void cmScoreSetPerfValue( cmScH_t h, unsigned locIdx, unsigned varId, double value );
  183. // Set the performed dynamic level of a score event.
  184. void cmScoreSetPerfDynLevel( cmScH_t h, unsigned evtIdx, unsigned dynLvl );
  185. typedef enum
  186. {
  187. kInvalidMsgScId,
  188. kBeginMsgScId,
  189. kEventMsgScId,
  190. kSectionMsgScId,
  191. kEndMsgScId,
  192. kVarMsgScId,
  193. kDynMsgScId
  194. } cmScMsgTypeId_t;
  195. typedef struct
  196. {
  197. unsigned varId; // see kXXXVarScId from cmScoreSet_t.varId
  198. double value; // value of a variable
  199. } cmScMeas_t;
  200. typedef struct
  201. {
  202. unsigned evtIdx;
  203. unsigned dynLvl;
  204. } cmScDyn_t;
  205. typedef struct
  206. {
  207. cmScMsgTypeId_t typeId;
  208. union
  209. {
  210. cmScoreEvt_t evt; // only used when typeId == kEventMsgScId
  211. cmScMeas_t meas; // only used when typeId == kVarMsgScId
  212. cmScoreSection_t sect; // only used when typeId == kSectionMsgScId
  213. cmScDyn_t dyn; // only used when typeId == kDynLvlMsgScId
  214. } u;
  215. } cmScMsg_t;
  216. // Decode a serialized cmScMsg_t from a byte stream as passed to the
  217. // cmScCb_t function.
  218. cmScRC_t cmScoreDecode( const void* msg, unsigned msgByteCnt, cmScMsg_t* );
  219. void cmScorePrint( cmScH_t h, cmRpt_t* rpt );
  220. // Generate a new score file from a MIDI file.
  221. cmScRC_t cmScoreFileFromMidi( cmCtx_t* ctx, const cmChar_t* midiFn, const cmChar_t* scoreFn );
  222. void cmScoreTest( cmCtx_t* ctx, const cmChar_t* fn );
  223. #ifdef __cplusplus
  224. }
  225. #endif
  226. #endif