libcm is a C development framework with an emphasis on audio signal processing applications.
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cmScoreMatchGraphic.c 21KB

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  1. #include "cmPrefix.h"
  2. #include "cmGlobal.h"
  3. #include "cmFloatTypes.h"
  4. #include "cmRpt.h"
  5. #include "cmErr.h"
  6. #include "cmCtx.h"
  7. #include "cmMem.h"
  8. #include "cmMallocDebug.h"
  9. #include "cmLinkedHeap.h"
  10. #include "cmTime.h"
  11. #include "cmMidi.h"
  12. #include "cmLex.h"
  13. #include "cmCsv.h"
  14. #include "cmSymTbl.h"
  15. #include "cmMidiFile.h"
  16. #include "cmAudioFile.h"
  17. #include "cmTimeLine.h"
  18. #include "cmText.h"
  19. #include "cmFile.h"
  20. #include "cmScore.h"
  21. #include "cmScoreMatchGraphic.h"
  22. enum
  23. {
  24. kLocSmgFl = 0x0001,
  25. kBarSmgFl = 0x0002, // score bar
  26. kNoteSmgFl = 0x0004, // score note
  27. kPedalSmgFl = 0x0008, // sore damper|sot pedal
  28. kSostSmgFl = 0x0010, // score sost pedal
  29. kMidiSmgFl = 0x0020, // midi msg
  30. kNoMatchSmgFl = 0x0040, // midi or score events that were not matched
  31. kPedalDnSmgFl = 0x0080 // score pedal is down
  32. };
  33. // Graphic box representing a score label or MIDI event
  34. typedef struct cmSmgBox_str
  35. {
  36. unsigned flags;
  37. unsigned id; // csvEventId or midiUid
  38. unsigned left;
  39. unsigned top;
  40. unsigned width;
  41. unsigned height;
  42. cmChar_t* text0;
  43. cmChar_t* text1;
  44. struct cmSmgBox_str* link;
  45. } cmSmgBox_t;
  46. // Graphic line linking secondary MIDI matches to score events
  47. typedef struct cmSmgLine_str
  48. {
  49. cmSmgBox_t* b0;
  50. cmSmgBox_t* b1;
  51. struct cmSmgLine_str* link;
  52. } cmSmgLine_t;
  53. // Score Location
  54. typedef struct cmSmgLoc_str
  55. {
  56. cmSmgBox_t* bV; // List of graphic boxes assigned to this score location
  57. } cmSmgLoc_t;
  58. // Score label
  59. typedef struct
  60. {
  61. unsigned type; // kBarEvtScId | kNonEvtScId | kPedalEvtScId
  62. unsigned barNumb;
  63. unsigned csvEventId;
  64. unsigned locIdx;
  65. cmSmgBox_t* box;
  66. } cmSmgSc_t;
  67. // Link a MIDI event to it's matched score label.
  68. typedef struct cmSmgMatch_str
  69. {
  70. cmSmgSc_t* score;
  71. struct cmSmgMatch_str* link;
  72. } cmSmgMatch_t;
  73. // MIDI file event
  74. typedef struct
  75. {
  76. double secs;
  77. unsigned uid;
  78. unsigned pitch;
  79. unsigned vel;
  80. cmSmgMatch_t* matchV; // list of matches to score events
  81. cmSmgBox_t* box;
  82. } cmSmgMidi_t;
  83. typedef struct
  84. {
  85. cmErr_t err;
  86. cmChar_t* scFn;
  87. cmSmgSc_t* scV; // scV[scN] score bars,notes, pedals
  88. unsigned scN;
  89. cmSmgLoc_t* locV; // locV[locN] score locations (from the score file)
  90. unsigned locN;
  91. cmSmgLine_t* lines; // Graphic lines used to indicate that a midi event matches to multiple score notes.
  92. // (Each match after the first gets a line from the box representing the midi event
  93. // to the matching score event)
  94. cmChar_t* mfFn; // MIDI file name
  95. cmSmgMidi_t* mV; // mV[mN] midi note-on events
  96. unsigned mN;
  97. double mfDurSecs; // midi file duration in seconds
  98. unsigned boxW; // graphic box width and height
  99. unsigned boxH;
  100. } cmSmg_t;
  101. cmSmgH_t cmSmgNullHandle = cmSTATIC_NULL_HANDLE;
  102. cmSmg_t* _cmSmgHandleToPtr( cmSmgH_t h )
  103. {
  104. cmSmg_t* p = (cmSmg_t*)h.h;
  105. assert(p!=NULL);
  106. return p;
  107. }
  108. cmSmgRC_t _cmSmgFree( cmSmg_t* p )
  109. {
  110. unsigned i;
  111. for(i=0; i<p->mN; ++i)
  112. {
  113. cmSmgMatch_t* m0 = p->mV[i].matchV;
  114. cmSmgMatch_t* m1 = NULL;
  115. while(m0!=NULL)
  116. {
  117. m1 = m0->link;
  118. cmMemFree(m0);
  119. m0 = m1;
  120. }
  121. }
  122. for(i=0; i<p->locN; ++i)
  123. {
  124. cmSmgBox_t* b0 = p->locV[i].bV;
  125. cmSmgBox_t* b1 = NULL;
  126. while(b0!=NULL)
  127. {
  128. b1 = b0->link;
  129. cmMemFree(b0->text0);
  130. cmMemFree(b0->text1);
  131. cmMemFree(b0);
  132. b0 = b1;
  133. }
  134. }
  135. cmSmgLine_t* l0 = p->lines;
  136. cmSmgLine_t* l1 = NULL;
  137. while( l0 != NULL )
  138. {
  139. l1 = l0->link;
  140. cmMemFree(l0);
  141. l0 = l1;
  142. }
  143. cmMemFree(p->scFn);
  144. cmMemFree(p->mfFn);
  145. cmMemFree(p->scV);
  146. cmMemFree(p->mV);
  147. cmMemFree(p->locV);
  148. cmMemFree(p);
  149. return kOkSmgRC;
  150. }
  151. cmSmgBox_t* _cmSmgInsertBox( cmSmg_t* p, unsigned locIdx, unsigned flags, unsigned id, cmChar_t* text0, cmChar_t* text1 )
  152. {
  153. assert( locIdx < p->locN );
  154. cmSmgBox_t* b = cmMemAllocZ(cmSmgBox_t,1);
  155. b->flags = flags;
  156. b->id = id;
  157. b->text0 = text0;
  158. b->text1 = text1;
  159. if( p->locV[locIdx].bV == NULL )
  160. {
  161. p->locV[locIdx].bV = b;
  162. }
  163. else
  164. {
  165. cmSmgBox_t* b0 = p->locV[locIdx].bV;
  166. while( b0->link!=NULL )
  167. b0 = b0->link;
  168. b0->link = b;
  169. }
  170. return b;
  171. }
  172. cmSmgRC_t _cmSmgInitFromScore( cmCtx_t* ctx, cmSmg_t* p, const cmChar_t* scoreFn )
  173. {
  174. cmSmgRC_t rc = kOkSmgRC;
  175. cmScH_t scH = cmScNullHandle;
  176. unsigned i,j,k;
  177. if( cmScoreInitialize(ctx,&scH,scoreFn,44100.0, NULL, 0, NULL, NULL, cmSymTblNullHandle ) != kOkScRC )
  178. return cmErrMsg(&p->err,kScoreFailSmgRC,"Score initializatio failed on '%s'.",cmStringNullGuard(scoreFn));
  179. p->scFn = cmMemAllocStr(scoreFn);
  180. p->scN = cmScoreEvtCount(scH);
  181. p->scV = cmMemAllocZ(cmSmgSc_t,p->scN);
  182. p->locN = cmScoreLocCount(scH);
  183. p->locV = cmMemAllocZ(cmSmgLoc_t,p->locN);
  184. // for each score location
  185. for(i=0,k=0; i<cmScoreLocCount(scH); ++i)
  186. {
  187. cmScoreLoc_t* l = cmScoreLoc(scH,i);
  188. // insert the location label box
  189. _cmSmgInsertBox(p, i, kLocSmgFl, cmInvalidId, cmTsPrintfP(NULL,"%i",i), NULL );
  190. // for each event in location i
  191. for(j=0; j<l->evtCnt; ++j)
  192. {
  193. const cmScoreEvt_t* e = l->evtArray[j];
  194. unsigned flags = kNoMatchSmgFl;
  195. cmChar_t* text = NULL;
  196. switch( e->type)
  197. {
  198. case kNonEvtScId:
  199. flags |= kNoteSmgFl;
  200. text = cmMemAllocStr( cmMidiToSciPitch( e->pitch, NULL, 0));
  201. break;
  202. case kBarEvtScId:
  203. flags |= kBarSmgFl;
  204. text = cmTsPrintfP(NULL,"%i",e->barNumb);
  205. break;
  206. case kPedalEvtScId:
  207. flags |= kPedalSmgFl;
  208. text = cmTsPrintfP(NULL,"%s", cmIsFlag(e->flags,kPedalDnScFl)?"v":"^");
  209. if( e->pitch == kSostenutoCtlMdId )
  210. flags |= kSostSmgFl;
  211. flags |= cmIsFlag(e->flags,kPedalDnScFl) ? kPedalDnSmgFl : 0;
  212. break;
  213. }
  214. // if e is a score event of interest then store a reference to it
  215. if( flags != kNoMatchSmgFl )
  216. {
  217. assert( k < p->scN );
  218. p->scV[k].type = e->type;
  219. p->scV[k].csvEventId = e->csvEventId;
  220. p->scV[k].locIdx = i;
  221. p->scV[k].barNumb = e->barNumb;
  222. p->scV[k].box = _cmSmgInsertBox(p, i, flags, e->csvEventId, text, NULL );
  223. k += 1;
  224. }
  225. }
  226. }
  227. p->scN = k;
  228. cmScoreFinalize(&scH);
  229. return rc;
  230. }
  231. cmSmgRC_t _cmSmgInitFromMidi( cmCtx_t* ctx, cmSmg_t* p, const cmChar_t* midiFn )
  232. {
  233. cmSmgRC_t rc = kOkSmgRC;
  234. cmMidiFileH_t mfH = cmMidiFileNullHandle;
  235. unsigned i,j;
  236. if( cmMidiFileOpen(ctx, &mfH, midiFn ) != kOkMfRC )
  237. return cmErrMsg(&p->err,kMidiFileFailSmgRC,"MIDI file open failed on '%s'.",cmStringNullGuard(midiFn));
  238. const cmMidiTrackMsg_t** mV = cmMidiFileMsgArray(mfH);
  239. unsigned mN = cmMidiFileMsgCount(mfH);
  240. p->mV = cmMemAllocZ(cmSmgMidi_t,mN);
  241. p->mN = mN;
  242. p->mfDurSecs = cmMidiFileDurSecs(mfH);
  243. p->mfFn = cmMemAllocStr(midiFn);
  244. for(i=0,j=0; i<mN; ++i)
  245. if( (mV[i]!=NULL) && cmMidiIsChStatus(mV[i]->status) && cmMidiIsNoteOn(mV[i]->status) && (mV[i]->u.chMsgPtr->d1>0) )
  246. {
  247. assert(j < mN);
  248. p->mV[j].secs = mV[i]->amicro / 1000000.0;
  249. p->mV[j].uid = mV[i]->uid;
  250. p->mV[j].pitch = mV[i]->u.chMsgPtr->d0;
  251. p->mV[j].vel = mV[i]->u.chMsgPtr->d1;
  252. ++j;
  253. }
  254. p->mN = j;
  255. cmMidiFileClose(&mfH);
  256. return rc;
  257. }
  258. cmSmgRC_t cmScoreMatchGraphicAlloc( cmCtx_t* ctx, cmSmgH_t* hp, const cmChar_t* scoreFn, const cmChar_t* midiFn )
  259. {
  260. cmSmgRC_t rc;
  261. if((rc = cmScoreMatchGraphicFree(hp)) != kOkSmgRC )
  262. return rc;
  263. cmSmg_t* p = cmMemAllocZ(cmSmg_t,1);
  264. cmErrSetup(&p->err,&ctx->rpt,"ScoreMatchGraphic");
  265. if((rc = _cmSmgInitFromScore(ctx,p,scoreFn)) != kOkSmgRC )
  266. goto errLabel;
  267. if((rc = _cmSmgInitFromMidi(ctx,p,midiFn)) != kOkSmgRC )
  268. goto errLabel;
  269. p->boxW = 30;
  270. p->boxH = 50;
  271. hp->h = p;
  272. errLabel:
  273. if( rc != kOkSmgRC )
  274. _cmSmgFree(p);
  275. return rc;
  276. }
  277. bool cmScoreMatchGraphicIsValid( cmSmgH_t h )
  278. { return h.h != NULL; }
  279. cmSmgRC_t cmScoreMatchGraphicFree( cmSmgH_t* hp )
  280. {
  281. cmSmgRC_t rc = kOkSmgRC;
  282. if(hp==NULL || cmScoreMatchGraphicIsValid(*hp)==false)
  283. return kOkSmgRC;
  284. cmSmg_t* p = _cmSmgHandleToPtr(*hp);
  285. if((rc = _cmSmgFree(p)) != kOkSmgRC )
  286. return rc;
  287. hp->h = NULL;
  288. return rc;
  289. }
  290. bool cmScoreMatchGraphic( cmSmgH_t h )
  291. { return h.h != NULL; }
  292. cmSmgRC_t cmScoreMatchGraphicInsertMidi( cmSmgH_t h, unsigned midiUid, unsigned midiPitch, unsigned midiVel, unsigned csvScoreEventId )
  293. {
  294. cmSmg_t* p = _cmSmgHandleToPtr(h);
  295. unsigned i,j;
  296. // if this midi event did not match any score records
  297. if( csvScoreEventId == cmInvalidId )
  298. return kOkSmgRC;
  299. assert(midiUid != cmInvalidId );
  300. assert(midiPitch<128 && midiVel<128);
  301. // find the midi file record which matches the event
  302. for(i=0; i<p->mN; ++i)
  303. if( p->mV[i].uid == midiUid )
  304. {
  305. // find the score record which matches the score event id
  306. for(j=0; j<p->scN; ++j)
  307. if( p->scV[j].csvEventId == csvScoreEventId )
  308. {
  309. // create a match record
  310. cmSmgMatch_t* m = cmMemAllocZ(cmSmgMatch_t,1);
  311. m->score = p->scV + j;
  312. // mark the box associated with this score record as 'matched' by clearing the kNoMatchSmgFl
  313. p->scV[j].box->flags = cmClrFlag(p->scV[j].box->flags,kNoMatchSmgFl);
  314. // insert the match record in the midi files match list
  315. if( p->mV[i].matchV == NULL )
  316. p->mV[i].matchV = m;
  317. else
  318. {
  319. cmSmgMatch_t* m0 = p->mV[i].matchV;
  320. while( m0->link != NULL )
  321. m0 = m0->link;
  322. m0->link = m;
  323. }
  324. return kOkSmgRC;
  325. }
  326. return cmErrMsg(&p->err,kScoreFailSmgRC,"The score csv event id %i not found,",csvScoreEventId);
  327. }
  328. return cmErrMsg(&p->err,kMidiFileFailSmgRC,"MIDI uid %i not found.",midiUid);
  329. }
  330. // Create a box for each MIDI event and a line for each
  331. // match beyond the first.
  332. void _cmSmgResolveMidi( cmSmg_t* p )
  333. {
  334. unsigned prevLocIdx = 0;
  335. unsigned i;
  336. // for each midi record
  337. for(i=0; i<p->mN; ++i)
  338. {
  339. // get the first match record for this MIDI event
  340. const cmSmgMatch_t* m = p->mV[i].matchV;
  341. // get the score location for this midi event
  342. unsigned locIdx = m==NULL ? prevLocIdx : m->score->locIdx;
  343. unsigned flags = kMidiSmgFl | (m==NULL ? kNoMatchSmgFl : 0);
  344. // set the text label for this event
  345. cmChar_t* text = cmMemAllocStr( cmMidiToSciPitch( p->mV[i].pitch, NULL, 0));
  346. // insert a box to represent this midi event
  347. cmSmgBox_t* box = _cmSmgInsertBox( p, locIdx, flags, p->mV[i].uid, text, cmTsPrintfP(NULL,"%i",p->mV[i].uid) );
  348. prevLocIdx = locIdx;
  349. // if this midi event matched to multiple score positions
  350. if( m != NULL && m->link != NULL )
  351. {
  352. // insert a line for each match after the first
  353. m = m->link;
  354. for(; m!=NULL; m=m->link )
  355. {
  356. cmSmgLine_t* l = cmMemAllocZ(cmSmgLine_t,1);
  357. l->b0 = box;
  358. l->b1 = m->score->box;
  359. l->link = p->lines;
  360. p->lines = l;
  361. }
  362. }
  363. }
  364. }
  365. void _cmSmgLayout( cmSmg_t* p )
  366. {
  367. unsigned i;
  368. unsigned bordX = 5;
  369. unsigned bordY = 5;
  370. unsigned top = p->boxH + 2*bordY;
  371. unsigned left = bordX;
  372. for(i=0; i<p->locN; ++i)
  373. {
  374. cmSmgLoc_t* l = p->locV + i;
  375. cmSmgBox_t* b = l->bV;
  376. // for each box attached to this location
  377. for(; b!=NULL; b=b->link)
  378. {
  379. // bar boxes are always drawn at the top of the column
  380. if( cmIsFlag(b->flags,kBarSmgFl) )
  381. b->top = bordY;
  382. else
  383. {
  384. b->top = top;
  385. top += p->boxH + bordY;
  386. }
  387. b->left = left;
  388. b->width = p->boxW;
  389. b->height = p->boxH;
  390. }
  391. left += p->boxW + bordX;
  392. top = p->boxH + 2*bordY;
  393. }
  394. }
  395. void _cmSmgSvgSize( cmSmg_t* p, unsigned* widthRef, unsigned* heightRef )
  396. {
  397. unsigned i;
  398. unsigned maxWidth = 0;
  399. unsigned maxHeight = 0;
  400. for(i=0; i<p->locN; ++i)
  401. {
  402. cmSmgBox_t* b = p->locV[i].bV;
  403. for(; b != NULL; b=b->link )
  404. {
  405. if( b->left + b->width > maxWidth )
  406. maxWidth = b->left + b->width;
  407. if( b->top + b->height > maxHeight )
  408. maxHeight = b->top + b->height;
  409. }
  410. }
  411. *widthRef = maxWidth;
  412. *heightRef = maxHeight;
  413. }
  414. cmSmgRC_t cmScoreMatchGraphicWrite( cmSmgH_t h, const cmChar_t* fn )
  415. {
  416. cmSmg_t* p = _cmSmgHandleToPtr(h);
  417. cmFileH_t fH = cmFileNullHandle;
  418. unsigned svgHeight = 0;
  419. unsigned svgWidth = 0;
  420. unsigned i;
  421. // BUG BUG BUG : this can only be called once
  422. // create a box for each midi event
  423. _cmSmgResolveMidi( p );
  424. // layout the boxes
  425. _cmSmgLayout( p );
  426. if( cmFileOpen(&fH,fn,kWriteFileFl,p->err.rpt) != kOkFileRC )
  427. return cmErrMsg(&p->err,kFileFailScRC,"Graphic file create failed for '%s'.",cmStringNullGuard(fn));
  428. _cmSmgSvgSize(p,&svgWidth,&svgHeight);
  429. svgHeight += 10; // add a right and lower border
  430. svgWidth += 10;
  431. cmFilePrintf(fH,"<!DOCTYPE html>\n<html>\n<head><link rel=\"stylesheet\" type=\"text/css\" href=\"score0.css\"></head><body>\n<svg width=\"%i\" height=\"%i\">\n",svgWidth,svgHeight);
  432. for(i=0; i<p->locN; ++i)
  433. {
  434. cmSmgBox_t* b = p->locV[i].bV;
  435. for(; b != NULL; b=b->link )
  436. {
  437. const cmChar_t* classStr = "score";
  438. if( cmIsFlag(b->flags,kLocSmgFl) )
  439. classStr = "loc";
  440. if( cmIsFlag(b->flags,kMidiSmgFl) )
  441. classStr = "midi";
  442. if( cmIsFlag(b->flags,kNoMatchSmgFl) )
  443. if( cmIsFlag(b->flags,kMidiSmgFl) )
  444. classStr = "midi_miss";
  445. if( cmIsFlag(b->flags,kNoMatchSmgFl) )
  446. if( cmIsFlag(b->flags,kNoteSmgFl) )
  447. classStr = "score_miss";
  448. if( cmIsFlag(b->flags,kBarSmgFl) )
  449. classStr = "bar";
  450. if( cmIsFlag(b->flags,kPedalSmgFl) )
  451. {
  452. if( cmIsFlag(b->flags,kSostSmgFl) )
  453. classStr = "sost";
  454. else
  455. classStr = "damper";
  456. }
  457. if( cmFilePrintf(fH,"<rect x=\"%i\" y=\"%i\" width=\"%i\" height=\"%i\" class=\"%s\"/>\n",b->left,b->top,b->width,b->height,classStr) != kOkFileRC )
  458. return cmErrMsg(&p->err,kFileFailScRC,"File write failed on graphic file rect output.");
  459. if( b->text0 != NULL )
  460. {
  461. unsigned tx = b->left + b->width/2;
  462. unsigned ty = b->top + 20;
  463. if( cmFilePrintf(fH,"<text x=\"%i\" y=\"%i\" text-anchor=\"middle\" class=\"stext\">%s</text>\n",tx,ty,b->text0) != kOkFileRC )
  464. return cmErrMsg(&p->err,kFileFailScRC,"File write failed on graphic file text output.");
  465. }
  466. if( b->text1 != NULL )
  467. {
  468. unsigned tx = b->left + b->width/2;
  469. unsigned ty = b->top + 20 + 20;
  470. if( cmFilePrintf(fH,"<text x=\"%i\" y=\"%i\" text-anchor=\"middle\" class=\"stext\">%s</text>\n",tx,ty,b->text1) != kOkFileRC )
  471. return cmErrMsg(&p->err,kFileFailScRC,"File write failed on graphic file text output.");
  472. }
  473. }
  474. }
  475. cmSmgLine_t* l = p->lines;
  476. for(; l!=NULL; l=l->link)
  477. {
  478. unsigned x0 = l->b0->left + l->b0->width/2;
  479. unsigned y0 = l->b0->top + l->b0->height/2;
  480. unsigned x1 = l->b1->left + l->b1->width/2;
  481. unsigned y1 = l->b1->top + l->b1->height/2;
  482. if( cmFilePrintf(fH,"<line x1=\"%i\" y1=\"%i\" x2=\"%i\" y2=\"%i\" class=\"sline\"/>\n",x0,y0,x1,y1) != kOkFileRC )
  483. return cmErrMsg(&p->err,kFileFailScRC,"File write failed on graphic file line output.");
  484. }
  485. cmFilePrint(fH,"</svg>\n</body>\n</html>\n");
  486. cmFileClose(&fH);
  487. return kOkSmgRC;
  488. }
  489. cmSmgRC_t cmScoreMatchGraphicGenTimeLineBars( cmSmgH_t h, const cmChar_t* fn, unsigned srate )
  490. {
  491. cmSmgRC_t rc = kOkSmgRC;
  492. cmFileH_t f = cmFileNullHandle;
  493. cmSmg_t* p = _cmSmgHandleToPtr(h);
  494. unsigned i = 0;
  495. if( cmFileOpen(&f,fn,kWriteFileFl,p->err.rpt) != kOkFileRC )
  496. return cmErrMsg(&p->err,kFileSmgRC,"The time-line bar file '%s' could not be created.",cmStringNullGuard(fn));
  497. for(i=0; i<p->mN; ++i)
  498. if( p->mV[i].matchV != NULL && p->mV[i].matchV->score != NULL && p->mV[i].matchV->score > p->scV && p->mV[i].matchV->score[-1].type==kBarEvtScId )
  499. {
  500. unsigned bar = p->mV[i].matchV->score->barNumb;
  501. unsigned offset = p->mV[i].secs * srate;
  502. unsigned smpCnt = p->mfDurSecs * srate - offset;
  503. cmFilePrintf(f,"{ label: \"%i\" type: \"mk\" ref: \"mf-0\" offset: %8i smpCnt:%8i trackId: 0 textStr: \"Bar %3i\" bar: %3i sec:\"%3i\" }\n",bar,offset,smpCnt,bar,bar,bar);
  504. }
  505. cmFileClose(&f);
  506. return rc;
  507. }
  508. // Find the first MIDI event that matches this score event
  509. const cmSmgMidi_t* _cmScoreMatchGraphicScoreToMatchedMidiEvent( cmSmg_t* p, const cmSmgSc_t* sc )
  510. {
  511. unsigned i;
  512. for(i=0; i<p->mN; ++i)
  513. {
  514. const cmSmgMatch_t* m = p->mV[i].matchV;
  515. for(; m != NULL; m=m->link )
  516. if( sc->csvEventId == m->score->csvEventId )
  517. return p->mV + i;
  518. }
  519. return NULL;
  520. }
  521. cmSmgRC_t _cmScoreMatchGraphicInsertMidiMsg( cmSmg_t* p, cmMidiFileH_t mfH, bool pedalDnFl, const cmSmgSc_t* s )
  522. {
  523. const cmSmgMidi_t* m;
  524. // locate the MIDI event associated with the reference event
  525. if((m =_cmScoreMatchGraphicScoreToMatchedMidiEvent( p, s )) == NULL )
  526. return cmErrWarnMsg(&p->err,kMatchFailSmgRC,"A sostenuto pedal msg could not be aligned to a note event.");
  527. int dtick_offset = pedalDnFl ? 1 : -1;
  528. cmMidiByte_t midi_vel = pedalDnFl ? 64 : 0;
  529. cmMidiByte_t midi_ch = 0;
  530. printf("pedal:%s\n",pedalDnFl?"down":"up");
  531. // insert a pedal msg relative to the reference event
  532. if( cmMidiFileInsertMsg(mfH, m->uid, dtick_offset, midi_ch, kCtlMdId, kSostenutoCtlMdId, midi_vel ) != kOkMfRC )
  533. return cmErrWarnMsg(&p->err,kMidiFileFailSmgRC,"MIDI msg insert failed.");
  534. return kOkSmgRC;
  535. }
  536. cmSmgRC_t _cmScoreMatchGraphicUpdateSostenuto( cmSmg_t* p, cmMidiFileH_t mfH )
  537. {
  538. cmSmgRC_t rc = kOkSmgRC;
  539. unsigned i, j = cmInvalidIdx;
  540. bool pedalUpFl = false;
  541. // for each score event
  542. for(i=0; i<p->scN; ++i)
  543. {
  544. switch( p->scV[i].type )
  545. {
  546. case kNonEvtScId:
  547. {
  548. // if the pedalUpFl is set then insert a sost-pedal-up msg before this note.
  549. if( pedalUpFl )
  550. {
  551. _cmScoreMatchGraphicInsertMidiMsg(p, mfH, false, p->scV + i );
  552. pedalUpFl = false;
  553. }
  554. j = i; // store the index of this note event (it may be needed if the next event is a sost. pedal evt.)
  555. }
  556. break;
  557. case kPedalEvtScId:
  558. // if this is a sost pedal event
  559. if( cmIsFlag(p->scV[i].box->flags,kSostSmgFl) )
  560. {
  561. if( cmIsFlag(p->scV[i].box->flags,kPedalDnSmgFl) )
  562. {
  563. assert( j != cmInvalidIdx );
  564. _cmScoreMatchGraphicInsertMidiMsg(p, mfH, true, p->scV + j );
  565. }
  566. else
  567. {
  568. pedalUpFl = true; // insert a pedal up message before the next note-on
  569. }
  570. }
  571. default:
  572. break;
  573. }
  574. }
  575. return rc;
  576. }
  577. cmSmgRC_t cmScoreMatchGraphicUpdateMidiFromScore( cmCtx_t* ctx, cmSmgH_t h, const cmChar_t* newMidiFn )
  578. {
  579. cmSmgRC_t rc = kOkSmgRC;
  580. cmSmg_t* p = _cmSmgHandleToPtr(h);
  581. unsigned i = 0;
  582. cmMidiFileH_t mfH = cmMidiFileNullHandle;
  583. cmScH_t scH = cmScNullHandle;
  584. // open the MIDI file
  585. if( cmMidiFileOpen(ctx, &mfH, p->mfFn ) != kOkMfRC )
  586. return cmErrMsg(&p->err,kMidiFileFailSmgRC,"MIDI file open failed on '%s'.",cmStringNullGuard(p->mfFn));
  587. // instantiate the score from the score CSV file
  588. if( cmScoreInitialize(ctx,&scH,p->scFn,44100.0, NULL, 0, NULL, NULL, cmSymTblNullHandle ) != kOkScRC )
  589. {
  590. rc = cmErrMsg(&p->err,kScoreFailSmgRC,"Score initializatio failed on '%s'.",cmStringNullGuard(p->scFn));
  591. goto errLabel;
  592. }
  593. // for each MIDI note-on event
  594. for(i=0; i<p->mN; ++i)
  595. {
  596. cmSmgMidi_t* mr = p->mV + i;
  597. // only update midi events which were matched exactly once
  598. if( mr->matchV==NULL || mr->matchV->link!=NULL )
  599. continue;
  600. // locate the matched score event
  601. const cmScoreEvt_t* s= cmScoreIdToEvt( scH, mr->matchV->score->csvEventId );
  602. assert( s!=NULL );
  603. // assign the score velocity to the MIDI note
  604. if(cmMidiFileSetVelocity( mfH, mr->uid, s->vel ) != kOkMfRC )
  605. {
  606. rc = cmErrMsg(&p->err,kOpFailSmgRC,"Set velocify operation failed.");
  607. goto errLabel;
  608. }
  609. }
  610. // update the sostenuto pedal msg's in the MIDI file.
  611. _cmScoreMatchGraphicUpdateSostenuto(p, mfH );
  612. // write the updated MIDI file
  613. if( cmMidiFileWrite( mfH, newMidiFn ) != kOkMfRC )
  614. {
  615. rc = cmErrMsg(&p->err,kMidiFileFailSmgRC,"MIDI file write failed on '%s'.",cmStringNullGuard(newMidiFn));
  616. goto errLabel;
  617. }
  618. cmMidiFilePrintMsgs(mfH, p->err.rpt );
  619. errLabel:
  620. cmMidiFileClose(&mfH);
  621. cmScoreFinalize(&scH);
  622. return rc;
  623. }