libcm is a C development framework with an emphasis on audio signal processing applications.
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cmMidiOsx.c 22KB

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  1. #include <Carbon/Carbon.h>
  2. #include <CoreAudio/CoreAudio.h>
  3. #include <CoreMIDI/CoreMIDI.h>
  4. #include <mach/mach_time.h>
  5. #include "cmPrefix.h"
  6. #include "cmGlobal.h"
  7. #include "cmRpt.h"
  8. #include "cmErr.h"
  9. #include "cmCtx.h"
  10. #include "cmMem.h"
  11. #include "cmMallocDebug.h"
  12. #include "cmMidi.h"
  13. #include "cmMidiPort.h"
  14. typedef struct
  15. {
  16. bool inputFl;
  17. char* nameStr;
  18. SInt32 uid;
  19. MIDIEndpointRef epr;
  20. cmMpParserH_t parserH;
  21. double prevMicroSecs;
  22. } cmMpPort;
  23. typedef struct
  24. {
  25. char* nameStr;
  26. unsigned iPortCnt;
  27. cmMpPort* iPortArray;
  28. unsigned oPortCnt;
  29. cmMpPort* oPortArray;
  30. } cmMpDev;
  31. typedef struct
  32. {
  33. cmErr_t err;
  34. unsigned devCnt;
  35. cmMpDev* devArray;
  36. cmMpCallback_t cbFunc;
  37. void* cbDataPtr;
  38. MIDIClientRef clientRef;
  39. MIDIPortRef inPortRef;
  40. MIDIPortRef outPortRef;
  41. mach_timebase_info_data_t timeBaseInfo;
  42. } cmMpRoot;
  43. cmMpRoot _cmMpRoot;
  44. cmMpRoot* _cmMpRtPtr = NULL;
  45. cmMpRC_t _cmMpError( cmErr_t* errPtr, cmMpRC_t rc, OSStatus err, const char* fmt, ... )
  46. {
  47. va_list vl0;
  48. va_list vl1;
  49. va_start(vl0,fmt);
  50. va_copy(vl1,vl0);
  51. unsigned n0 = vsnprintf(NULL,0,fmt,vl0);
  52. unsigned n1 = 0;
  53. unsigned n2 = 0;
  54. const char* fmt2 = "OS Status:%i";
  55. va_end(vl0);
  56. if( err != noErr )
  57. n1 = snprintf(NULL,0,fmt2,err);
  58. unsigned bufCharCnt = n0 + n1;
  59. char buf[ bufCharCnt + 1];
  60. vsnprintf(buf,n0,fmt,vl1);
  61. n2 = strlen(buf);
  62. snprintf(buf+n2,bufCharCnt-n2,fmt2,err);
  63. buf[bufCharCnt]=0;
  64. cmErrMsg(errPtr,rc,buf);
  65. va_end(vl1);
  66. return rc;
  67. }
  68. char* _cmMpAllocStringProperty( cmErr_t* errPtr, MIDIObjectRef obj, CFStringRef propId )
  69. {
  70. OSStatus err;
  71. CFStringRef cfStrRef = NULL;
  72. char* strPtr = NULL;
  73. if(( err = MIDIObjectGetStringProperty(obj,propId,&cfStrRef)) != noErr )
  74. {
  75. _cmMpError(errPtr,kCfStringErrMpRC,err,"Get property failed.");
  76. return NULL;
  77. }
  78. unsigned charCnt = CFStringGetLength( cfStrRef ) + 1;
  79. if( charCnt > 0 )
  80. {
  81. strPtr = cmMemAllocZ( char, charCnt );
  82. if( !CFStringGetCString( cfStrRef, strPtr, charCnt, kCFStringEncodingASCII))
  83. {
  84. _cmMpError(errPtr,kCfStringErrMpRC,noErr,"CFstring to cstring failed.");
  85. cmMemFree(strPtr);
  86. strPtr = NULL;
  87. }
  88. }
  89. CFRelease(cfStrRef);
  90. return strPtr;
  91. }
  92. void _cmMpDeviceInit( cmMpDev* drp )
  93. {
  94. drp->nameStr = NULL;
  95. drp->iPortCnt = 0;
  96. drp->oPortCnt = 0;
  97. drp->iPortArray = NULL;
  98. drp->oPortArray = NULL;
  99. }
  100. void _cmMpDeviceFree( cmMpDev* drp )
  101. {
  102. unsigned i;
  103. for(i=0; i<drp->iPortCnt; ++i)
  104. {
  105. cmMemPtrFree(&drp->iPortArray[i].nameStr);
  106. cmMpParserDestroy( &drp->iPortArray[i].parserH );
  107. }
  108. for(i=0; i<drp->oPortCnt; ++i)
  109. cmMemPtrFree(&drp->oPortArray[i].nameStr);
  110. cmMemPtrFree(&drp->iPortArray);
  111. cmMemPtrFree(&drp->oPortArray);
  112. cmMemPtrFree(&drp->nameStr);
  113. _cmMpDeviceInit(drp);
  114. }
  115. void _cmMpDevicePrint( cmMpDev* drp, unsigned devIdx, cmRpt_t* rpt )
  116. {
  117. unsigned i,j;
  118. cmRptPrintf(rpt,"%i '%s'\n",devIdx,drp->nameStr);
  119. for(j=0; j<2; ++j)
  120. {
  121. unsigned portCnt = j==0 ? drp->iPortCnt : drp->oPortCnt;
  122. for(i=0; i<portCnt; ++i)
  123. {
  124. const cmMpPort* p = j==0 ? drp->iPortArray + i : drp->oPortArray + i ;
  125. cmRptPrintf(rpt," port:%s %i id:0x:%x '%s'\n", p->inputFl ? "in " : "out",i, p->uid, p->nameStr );
  126. }
  127. }
  128. }
  129. char* _cmMpFormLabel( cmErr_t* errPtr, MIDIObjectRef obj )
  130. {
  131. char* modelStr = _cmMpAllocStringProperty( errPtr, obj, kMIDIPropertyManufacturer );
  132. char* nameStr = _cmMpAllocStringProperty( errPtr, obj, kMIDIPropertyModel );
  133. char* labelStr = cmMemAllocZ( char, strlen(modelStr) + strlen(nameStr) + 4 );
  134. strcpy(labelStr,modelStr);
  135. strcat(labelStr," - ");
  136. strcat(labelStr,nameStr);
  137. cmMemFree(modelStr);
  138. cmMemFree(nameStr);
  139. return labelStr;
  140. }
  141. char* _cmMpFormPortLabel( cmErr_t* errPtr, MIDIEntityRef mer, ItemCount pi, bool inputFl )
  142. {
  143. MIDIEndpointRef epr;
  144. if( inputFl )
  145. epr = MIDIEntityGetSource( mer, pi);
  146. else
  147. epr = MIDIEntityGetDestination( mer, pi);
  148. if(epr == 0 )
  149. {
  150. _cmMpError(errPtr,kSysErrMpRC,noErr,"Get %s endpoiint ref %i failed.", inputFl ? "source" : "destination",pi);
  151. return NULL;
  152. }
  153. return _cmMpAllocStringProperty( errPtr, (MIDIObjectRef)epr, kMIDIPropertyName );
  154. }
  155. // Fill id array with the unique id of each endpoint or 0 if the endpoint is offline.
  156. cmMpRC_t _cmMpGetEntityUniqueIdArray( MIDIEntityRef mer, SInt32* idArray, unsigned idCnt, bool inputFl, ItemCount* activeCntPtr, cmErr_t* errPtr )
  157. {
  158. cmMpRC_t rc = kOkMpRC;
  159. MIDIEndpointRef epr;
  160. unsigned pi;
  161. char* dirLabel = inputFl ? "source" : "dest";
  162. SInt32 offline;
  163. OSStatus err;
  164. *activeCntPtr = 0;
  165. for(pi=0; pi<idCnt; ++pi)
  166. {
  167. epr = inputFl ? MIDIEntityGetSource( mer, pi) : MIDIEntityGetDestination( mer, pi);
  168. if(epr == 0 )
  169. {
  170. rc = _cmMpError(errPtr,kSysErrMpRC,noErr,"Get %s endpoiint ref %i failed.",dirLabel,pi);
  171. goto errLabel;
  172. }
  173. offline = 1;
  174. if((err = MIDIObjectGetIntegerProperty( epr, kMIDIPropertyOffline, &offline)) != noErr )
  175. {
  176. _cmMpError(errPtr,kSysErrMpRC,err,"Get online status on %s endpoint %i failed.",dirLabel,pi);
  177. //goto errLabel; kpl 09/05/13 - report error and fall through and report the device as 'offline'.
  178. // This should be a warning rather than a error.
  179. }
  180. if( offline )
  181. idArray[pi] = 0;
  182. else
  183. {
  184. ++*activeCntPtr;
  185. if(( err = MIDIObjectGetIntegerProperty( epr, kMIDIPropertyUniqueID, idArray + pi)) != noErr )
  186. {
  187. rc = _cmMpError(errPtr,kSysErrMpRC,err,"Get unique id on %s endpoint %i failed.",dirLabel,pi);
  188. goto errLabel;
  189. }
  190. }
  191. }
  192. errLabel:
  193. return rc;
  194. }
  195. cmMpRC_t _cmMpInitPortArray( unsigned devIdx, MIDIPortRef mpr, MIDIEntityRef mer, cmMpPort* portArray, SInt32* idArray, unsigned portCnt, bool inputFl, cmMpCallback_t cbFunc, void* cbDataPtr, unsigned parserBufByteCnt, cmErr_t* errPtr )
  196. {
  197. cmMpRC_t rc = kOkMpRC;
  198. unsigned pi;
  199. for(pi=0; pi<portCnt; ++pi)
  200. {
  201. MIDIEndpointRef epr = inputFl ? MIDIEntityGetSource(mer,pi) : MIDIEntityGetDestination(mer,pi);
  202. if( epr == 0 )
  203. return _cmMpError(errPtr,kSysErrMpRC,noErr,"Get %s endpoiint ref %i failed.",inputFl ? "source" : "destination", pi);
  204. // if this is an active input port then connect it to the source port
  205. if( inputFl && (idArray[pi] != 0) )
  206. {
  207. OSStatus err = noErr;
  208. if((err = MIDIPortConnectSource( mpr, epr, portArray + pi )) != noErr )
  209. return _cmMpError(errPtr,kSysErrMpRC,err,"Source connect failed on port:%i",pi);
  210. portArray[pi].parserH = cmMpParserCreate( devIdx, pi, cbFunc, cbDataPtr, parserBufByteCnt, errPtr->rpt );
  211. }
  212. portArray[pi].uid = idArray[pi];
  213. portArray[pi].inputFl = inputFl;
  214. portArray[pi].nameStr = _cmMpFormPortLabel(errPtr, mer, pi, inputFl );
  215. portArray[pi].epr = epr;
  216. portArray[pi].prevMicroSecs = 0;
  217. }
  218. return rc;
  219. }
  220. cmMpRC_t _cmMpGetActiveEntityPortCount( MIDIEntityRef mer, bool inputFl, ItemCount* portCntPtr, ItemCount* activePortCntPtr, cmErr_t* errPtr )
  221. {
  222. *portCntPtr = inputFl ? MIDIEntityGetNumberOfSources( mer ) : MIDIEntityGetNumberOfDestinations( mer );
  223. SInt32 idArray[ *portCntPtr ];
  224. return _cmMpGetEntityUniqueIdArray( mer, idArray, *portCntPtr, inputFl, activePortCntPtr, errPtr );
  225. }
  226. cmMpRC_t _cmMpIsDeviceActive( unsigned devIdx, MIDIDeviceRef mdr, ItemCount* srcCntPtr, ItemCount* dstCntPtr, bool* activeFlPtr, cmErr_t* errPtr )
  227. {
  228. cmMpRC_t rc = kOkMpRC;
  229. ItemCount entityCnt = MIDIDeviceGetNumberOfEntities(mdr);
  230. unsigned ei;
  231. *srcCntPtr = 0;
  232. *dstCntPtr = 0;
  233. *activeFlPtr = false;
  234. for(ei=0; ei<entityCnt; ++ei)
  235. {
  236. ItemCount srcCnt = 0;
  237. ItemCount dstCnt = 0;
  238. ItemCount activeCnt = 0;
  239. MIDIEntityRef mer;
  240. if((mer = MIDIDeviceGetEntity( mdr, ei)) == 0 )
  241. return _cmMpError( errPtr,kSysErrMpRC,noErr,"Get midi device %i entity %i failed.",devIdx,ei);
  242. if((rc= _cmMpGetActiveEntityPortCount(mer,true,&srcCnt,&activeCnt,errPtr)) != kOkMpRC )
  243. return _cmMpError( errPtr, rc, noErr, "Error retrieving source port information for device:%i entity:%i",devIdx,ei);
  244. *srcCntPtr += srcCnt;
  245. if( activeCnt )
  246. *activeFlPtr = true;
  247. activeCnt = 0;
  248. if((rc= _cmMpGetActiveEntityPortCount(mer,false,&dstCnt,&activeCnt,errPtr)) != kOkMpRC )
  249. return _cmMpError( errPtr, rc, noErr, "Error retrieving destination port information for device:%i entity:%i",devIdx,ei);
  250. *dstCntPtr += dstCnt;
  251. if( activeCnt )
  252. *activeFlPtr = true;
  253. }
  254. return rc;
  255. }
  256. cmMpRC_t _cmMpCreateDevice( unsigned devIdx, cmMpDev* drp, MIDIPortRef inPortRef, cmMpCallback_t cbFunc, void* cbDataPtr, unsigned parserBufByteCnt, cmErr_t* errPtr )
  257. {
  258. cmMpRC_t rc = kOkMpRC;
  259. MIDIDeviceRef mdr;
  260. ItemCount devSrcCnt = 0;
  261. ItemCount devDstCnt = 0;
  262. bool activeFl = false;
  263. unsigned ei;
  264. // zero the device record
  265. _cmMpDeviceInit(drp);
  266. // get the device ref
  267. if((mdr = MIDIGetDevice(devIdx)) == 0 )
  268. return _cmMpError(errPtr,kSysErrMpRC,noErr,"Get midi device %i failed.",devIdx);
  269. // determine if the device port count and whether it is active
  270. if((rc = _cmMpIsDeviceActive(devIdx, mdr, &devSrcCnt, &devDstCnt, &activeFl, errPtr )) != kOkMpRC )
  271. return rc;
  272. // if the device is not active return with the device record empty
  273. if( !activeFl)
  274. return kOkMpRC;
  275. // allocate the input port array
  276. drp->iPortCnt = devSrcCnt;
  277. drp->iPortArray = cmMemAllocZ( cmMpPort, devSrcCnt );
  278. // allocate the output port array
  279. drp->oPortCnt = devDstCnt;
  280. drp->oPortArray = cmMemAllocZ( cmMpPort, devDstCnt );
  281. // form the device name string
  282. drp->nameStr = _cmMpFormLabel( errPtr, (MIDIObjectRef)mdr);
  283. unsigned entityCnt = MIDIDeviceGetNumberOfEntities(mdr);
  284. unsigned iPortCnt = 0;
  285. unsigned oPortCnt = 0;
  286. // for each entity on this device
  287. for(ei=0; ei<entityCnt; ++ei)
  288. {
  289. MIDIEntityRef mer;
  290. unsigned i;
  291. // get the entity reference
  292. if((mer = MIDIDeviceGetEntity( mdr, ei)) == 0 )
  293. {
  294. rc = _cmMpError(errPtr,kSysErrMpRC,noErr,"Get midi device %i entity %i failed.",devIdx,ei);
  295. goto errLabel;
  296. }
  297. // for each input and output on this entity
  298. for( i=0; i<2; ++i)
  299. {
  300. bool inputFl = i==0;
  301. ItemCount activeCnt = 0;
  302. unsigned portCnt = inputFl ? iPortCnt : oPortCnt;
  303. cmMpPort* portArray = inputFl ? drp->iPortArray : drp->oPortArray;
  304. ItemCount entityPortCnt = inputFl ? MIDIEntityGetNumberOfSources( mer ) : MIDIEntityGetNumberOfDestinations( mer );
  305. SInt32 idArray[ entityPortCnt ];
  306. // fill idArray with the unique id's of the active ports on this entity
  307. if((rc = _cmMpGetEntityUniqueIdArray(mer,idArray,entityPortCnt,inputFl,&activeCnt,errPtr)) != kOkMpRC )
  308. {
  309. rc = _cmMpError(errPtr,rc,noErr,"Unable to locate unique source ids on device:%i entity:%i",devIdx,ei);
  310. goto errLabel;
  311. }
  312. // assign the unique id's to each cmMpPort assoc'd with this entity
  313. _cmMpInitPortArray(devIdx, inPortRef, mer, portArray + portCnt, idArray, entityPortCnt, inputFl, cbFunc, cbDataPtr, parserBufByteCnt, errPtr );
  314. if( inputFl )
  315. iPortCnt += entityPortCnt;
  316. else
  317. oPortCnt += entityPortCnt;
  318. }
  319. }
  320. assert( iPortCnt == devSrcCnt );
  321. assert( oPortCnt == devDstCnt );
  322. errLabel:
  323. if( rc != kOkMpRC )
  324. _cmMpDeviceFree(drp);
  325. return rc;
  326. }
  327. void _cmMpDestroyDeviceArray( cmMpRoot* rp )
  328. {
  329. unsigned i;
  330. for(i=0; i<rp->devCnt; ++i)
  331. _cmMpDeviceFree( rp->devArray + i );
  332. cmMemPtrFree(&rp->devArray);
  333. rp->devCnt = 0;
  334. }
  335. cmMpRC_t _cmMpCreateDeviceArray( cmMpRoot* rp, unsigned parserBufByteCnt )
  336. {
  337. cmMpRC_t rc = kOkMpRC;
  338. ItemCount devCnt = MIDIGetNumberOfDevices();
  339. ItemCount di = 0;
  340. rp->devCnt = 0;
  341. rp->devArray = cmMemAllocZ( cmMpDev, devCnt );
  342. for(di=0; di<devCnt; ++di)
  343. {
  344. cmMpDev* drp = rp->devArray + rp->devCnt;
  345. // attempt to create a device record for device di
  346. if((rc = _cmMpCreateDevice( di, drp, rp->inPortRef, rp->cbFunc, rp->cbDataPtr, parserBufByteCnt, &rp->err )) != kOkMpRC )
  347. goto errLabel;
  348. // if the device di is active
  349. if( drp->iPortCnt || drp->oPortCnt )
  350. ++rp->devCnt;
  351. }
  352. errLabel:
  353. if( rc != kOkMpRC )
  354. _cmMpDestroyDeviceArray(rp);
  355. return rc;
  356. }
  357. void _cmMpMidiSystemNotifyProc( const MIDINotification* notifyMsgPtr, void *refCon )
  358. {
  359. // cmMpRoot* p = (mdRoot*)refCon;
  360. // if(p != NULL )
  361. // ((fw::osxMidiPorts*)refCon)->onNotify(notifyMsgPtr);
  362. }
  363. void _cmMpMIDISystemReadProc( const MIDIPacketList *pktListPtr, void* readProcRefCon, void* srcConnRefCon )
  364. {
  365. //cmMpRoot* rp = (cmMpRoot*)readProcRefCon;
  366. cmMpPort* pp = (cmMpPort*)srcConnRefCon;
  367. unsigned i;
  368. if( pktListPtr == NULL /*|| rp == NULL*/ || pp == NULL /*|| rp->cbFunc == NULL*/ )
  369. return;
  370. const MIDIPacket* packetPtr = &pktListPtr->packet[0];
  371. for(i=0; i < pktListPtr->numPackets; ++i)
  372. {
  373. /*
  374. unsigned j;
  375. for(j=0; j<packetPtr->length; ++j)
  376. printf("0x%x ", packetPtr->data[j]);
  377. printf("\n");
  378. */
  379. // About converting mach_absolute_time() to seconds: http://lists.apple.com/archives/carbon-dev/2007/Jan//msg00282.html
  380. // About MIDIPacket.timeStamp: http://developer.apple.com/library/ios/#documentation/CoreMidi/Reference/MIDIServices_Reference/Reference/reference.html
  381. double nano = 1e-9 * ( (double) _cmMpRoot.timeBaseInfo.numer) / ((double) _cmMpRoot.timeBaseInfo.denom);
  382. // so here's the delta in nanoseconds:
  383. double nanoSeconds = ((double) packetPtr->timeStamp) * nano;
  384. // 1000 times that for microSeconds:
  385. double microSecs = 1000.0f * nanoSeconds;
  386. double deltaMicroSecs = microSecs - pp->prevMicroSecs;
  387. pp->prevMicroSecs = microSecs;
  388. assert( pp->inputFl == true );
  389. cmMpParseMidiData( pp->parserH, (unsigned)deltaMicroSecs, packetPtr->data, packetPtr->length );
  390. packetPtr = MIDIPacketNext(packetPtr);
  391. }
  392. }
  393. cmMpPort* _cmMpGetPort( cmMpDev* drp, unsigned portIdx, unsigned flags )
  394. {
  395. assert( flags != 0 );
  396. bool inputFl = cmIsFlag(flags, kInMpFl);
  397. assert( portIdx < (inputFl ? drp->iPortCnt : drp->oPortCnt));
  398. return inputFl ? drp->iPortArray + portIdx : drp->oPortArray + portIdx;
  399. }
  400. cmMpRC_t cmMpInitialize( cmCtx_t* c, cmMpCallback_t cbFunc, void* cbDataPtr, unsigned parserBufByteCnt, const char* appNameStr )
  401. {
  402. cmMpRC_t rc = kOkMpRC;
  403. OSStatus err = noErr;
  404. CFStringRef clientNameStrRef = NULL;
  405. CFStringRef inPortNameStrRef = NULL;
  406. CFStringRef outPortNameStrRef = NULL;
  407. cmRpt_t* rpt = &c->rpt;
  408. if( _cmMpRtPtr == NULL )
  409. {
  410. memset(&_cmMpRoot,0,sizeof(_cmMpRoot));
  411. _cmMpRtPtr = &_cmMpRoot;
  412. }
  413. if((rc = cmMpFinalize()) != kOkMpRC )
  414. return rc;
  415. cmErrSetup(&_cmMpRoot.err,rpt,"MIDI Port");
  416. _cmMpRoot.cbFunc = cbFunc;
  417. _cmMpRoot.cbDataPtr = cbDataPtr;
  418. if(( clientNameStrRef = CFStringCreateWithCString(NULL,"MIDI",kCFStringEncodingASCII)) == NULL )
  419. {
  420. rc = _cmMpError(&_cmMpRoot.err,kCfStringErrMpRC,noErr,"Client name create failed.");
  421. goto errLabel;
  422. }
  423. if(( err = MIDIClientCreate( clientNameStrRef, _cmMpMidiSystemNotifyProc, &_cmMpRoot, &_cmMpRoot.clientRef )) != noErr )
  424. {
  425. rc = _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"Client create failed.");
  426. goto errLabel;
  427. }
  428. if((inPortNameStrRef = CFStringCreateWithCString(NULL,"in",kCFStringEncodingASCII)) == NULL )
  429. {
  430. rc = _cmMpError(&_cmMpRoot.err,kCfStringErrMpRC,noErr,"In port name string create failed.");
  431. goto errLabel;
  432. }
  433. if((err = MIDIInputPortCreate( _cmMpRoot.clientRef, inPortNameStrRef, _cmMpMIDISystemReadProc, &_cmMpRoot, &_cmMpRoot.inPortRef)) != noErr )
  434. {
  435. rc = _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"In port create failed.");
  436. goto errLabel;
  437. }
  438. if((outPortNameStrRef = CFStringCreateWithCString(NULL,"out",kCFStringEncodingASCII)) == NULL )
  439. {
  440. rc = _cmMpError(&_cmMpRoot.err,kCfStringErrMpRC,noErr,"Out port name string create failed.");
  441. goto errLabel;
  442. }
  443. if((err = MIDIOutputPortCreate( _cmMpRoot.clientRef, outPortNameStrRef, &_cmMpRoot.outPortRef)) != noErr )
  444. {
  445. rc = _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"Out port create failed.");
  446. goto errLabel;
  447. }
  448. if((rc = _cmMpCreateDeviceArray(&_cmMpRoot,parserBufByteCnt)) != kOkMpRC )
  449. goto errLabel;
  450. mach_timebase_info(&_cmMpRoot.timeBaseInfo);
  451. errLabel:
  452. if( clientNameStrRef != NULL )
  453. CFRelease(clientNameStrRef);
  454. if( inPortNameStrRef != NULL )
  455. CFRelease(inPortNameStrRef);
  456. if( outPortNameStrRef != NULL )
  457. CFRelease(outPortNameStrRef);
  458. if( rc != kOkMpRC )
  459. cmMpFinalize();
  460. return rc;
  461. }
  462. cmMpRC_t cmMpFinalize()
  463. {
  464. OSStatus err = noErr;
  465. cmMpRC_t rc = kOkMpRC;
  466. if( _cmMpRoot.inPortRef != 0 )
  467. {
  468. if((err = MIDIPortDispose(_cmMpRoot.inPortRef)) != noErr )
  469. rc = _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"MIDIPortDispose() failed on the input port.");
  470. else
  471. _cmMpRoot.inPortRef = 0;
  472. }
  473. if( _cmMpRoot.outPortRef != 0 )
  474. {
  475. if((err = MIDIPortDispose(_cmMpRoot.outPortRef)) != noErr )
  476. rc = _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"MIDIPortDispose() failed on the output port.");
  477. else
  478. _cmMpRoot.outPortRef = 0;
  479. }
  480. if( _cmMpRoot.clientRef != 0 )
  481. {
  482. if((err = MIDIClientDispose(_cmMpRoot.clientRef)) != noErr )
  483. rc = _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"MIDIClientDispose() failed.");
  484. else
  485. _cmMpRoot.clientRef = 0;
  486. }
  487. _cmMpDestroyDeviceArray(&_cmMpRoot);
  488. _cmMpRoot.devCnt = 0;
  489. _cmMpRoot.devArray = NULL;
  490. _cmMpRoot.cbFunc = NULL;
  491. _cmMpRoot.cbDataPtr = NULL;
  492. _cmMpRoot.clientRef = 0;
  493. _cmMpRoot.inPortRef = 0;
  494. _cmMpRoot.outPortRef = 0;
  495. return rc;
  496. }
  497. bool cmMpIsInitialized()
  498. { return _cmMpRoot.clientRef != 0; }
  499. unsigned cmMpDeviceCount()
  500. {
  501. return _cmMpRoot.devCnt;
  502. }
  503. const char* cmMpDeviceName( unsigned devIdx )
  504. {
  505. assert( devIdx < _cmMpRoot.devCnt );
  506. return _cmMpRoot.devArray[devIdx].nameStr;
  507. }
  508. unsigned cmMpDevicePortCount( unsigned devIdx, unsigned flags )
  509. {
  510. assert( devIdx < _cmMpRoot.devCnt );
  511. return cmIsFlag(flags,kInMpFl) ? _cmMpRoot.devArray[devIdx].iPortCnt : _cmMpRoot.devArray[devIdx].oPortCnt;
  512. }
  513. const char* cmMpDevicePortName( unsigned devIdx, unsigned flags, unsigned portIdx )
  514. {
  515. assert( devIdx < _cmMpRoot.devCnt );
  516. cmMpDev* drp = _cmMpRoot.devArray + devIdx;
  517. assert( portIdx < (cmIsFlag(flags,kInMpFl) ? drp->iPortCnt : drp->oPortCnt));
  518. return _cmMpGetPort( drp, portIdx, flags )->nameStr;
  519. }
  520. cmMpRC_t cmMpDeviceSend( unsigned devIdx, unsigned portIdx, cmMidiByte_t status, cmMidiByte_t d0, cmMidiByte_t d1 )
  521. {
  522. assert( devIdx < _cmMpRoot.devCnt );
  523. cmMpDev* drp = _cmMpRoot.devArray + devIdx;
  524. cmMpPort* pp = _cmMpGetPort( drp, portIdx, kOutMpFl);
  525. OSStatus err = noErr;
  526. MIDIPacketList mpl;
  527. unsigned byteCnt = cmMidiStatusToByteCount(status & 0xf0 );
  528. if( byteCnt == 0 )
  529. return _cmMpError(&_cmMpRoot.err,kInvalidArgMpRC,noErr,"Invalid status byte (0x%x) on send to device:%i port:%i",status,devIdx,portIdx);
  530. mpl.numPackets = 1;
  531. mpl.packet[0].timeStamp = 0;
  532. mpl.packet[0].length = byteCnt;
  533. mpl.packet[0].data[0] = status;
  534. mpl.packet[0].data[1] = d0;
  535. mpl.packet[0].data[2] = d1;
  536. if(( err = MIDISend( _cmMpRoot.outPortRef, pp->epr, &mpl)) != noErr )
  537. return _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"Send on device:%i port:%i failed.",devIdx,portIdx);
  538. return kOkMpRC;
  539. }
  540. cmMpRC_t cmMpDeviceSendData( unsigned devIdx, unsigned portIdx, const cmMidiByte_t* dataPtr, unsigned byteCnt )
  541. {
  542. assert( devIdx < _cmMpRoot.devCnt );
  543. cmMpDev* drp = _cmMpRoot.devArray + devIdx;
  544. cmMpPort* pp = _cmMpGetPort( drp, portIdx, kOutMpFl);
  545. OSStatus err = noErr;
  546. MIDIPacketList mpl;
  547. unsigned i;
  548. if( byteCnt > 256 )
  549. return _cmMpError(&_cmMpRoot.err,kInvalidArgMpRC,noErr,"mdDeviceSendData() only support data buffers up to 256 bytes.");
  550. mpl.numPackets = 1;
  551. mpl.packet[0].timeStamp = 0;
  552. mpl.packet[0].length = byteCnt;
  553. for(i=0; i<byteCnt; i++)
  554. mpl.packet[0].data[i] = dataPtr[i];
  555. if(( err = MIDISend( _cmMpRoot.outPortRef, pp->epr, &mpl)) != noErr )
  556. return _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"Data Send on device:%i port:%i failed.",devIdx,portIdx);
  557. return kOkMpRC;
  558. }
  559. cmMpRC_t cmMpInstallCallback( unsigned devIdx, unsigned portIdx, cmMpCallback_t cbFunc, void* cbDataPtr )
  560. {
  561. cmMpRC_t rc = kOkMpRC;
  562. unsigned di;
  563. unsigned dn = cmMpDeviceCount();
  564. for(di=0; di<dn; ++di)
  565. if( di==devIdx || devIdx == -1 )
  566. {
  567. unsigned pi;
  568. unsigned pn = cmMpDevicePortCount(di,kInMpFl);
  569. for(pi=0; pi<pn; ++pi)
  570. if( pi==portIdx || portIdx == -1 )
  571. if( cmMpParserInstallCallback( _cmMpRoot.devArray[di].iPortArray[pi].parserH, cbFunc, cbDataPtr ) != kOkMpRC )
  572. goto errLabel;
  573. }
  574. errLabel:
  575. return rc;
  576. }
  577. cmMpRC_t cmMpRemoveCallback( unsigned devIdx, unsigned portIdx, cmMpCallback_t cbFunc, void* cbDataPtr )
  578. {
  579. cmMpRC_t rc = kOkMpRC;
  580. unsigned di;
  581. unsigned dn = cmMpDeviceCount();
  582. unsigned remCnt = 0;
  583. for(di=0; di<dn; ++di)
  584. if( di==devIdx || devIdx == -1 )
  585. {
  586. unsigned pi;
  587. unsigned pn = cmMpDevicePortCount(di,kInMpFl);
  588. for(pi=0; pi<pn; ++pi)
  589. if( pi==portIdx || portIdx == -1 )
  590. if( cmMpParserHasCallback( _cmMpRoot.devArray[di].iPortArray[pi].parserH, cbFunc, cbDataPtr ) )
  591. {
  592. if( cmMpParserRemoveCallback( _cmMpRoot.devArray[di].iPortArray[pi].parserH, cbFunc, cbDataPtr ) != kOkMpRC )
  593. goto errLabel;
  594. else
  595. ++remCnt;
  596. }
  597. }
  598. if( remCnt == 0 && dn > 0 )
  599. rc = _cmMpError(&_cmMpRoot.err,kCbNotFoundMpRC,0,"The callback was not found on any of the specified devices or ports.");
  600. errLabel:
  601. return rc;
  602. }
  603. bool cmMpUsesCallback( unsigned devIdx, unsigned portIdx, cmMpCallback_t cbFunc, void* cbDataPtr )
  604. {
  605. unsigned di;
  606. unsigned dn = cmMpDeviceCount();
  607. for(di=0; di<dn; ++di)
  608. if( di==devIdx || devIdx == -1 )
  609. {
  610. unsigned pi;
  611. unsigned pn = cmMpDevicePortCount(di,kInMpFl);
  612. for(pi=0; pi<pn; ++pi)
  613. if( pi==portIdx || portIdx == -1 )
  614. if( cmMpParserHasCallback( _cmMpRoot.devArray[di].iPortArray[pi].parserH, cbFunc, cbDataPtr ) )
  615. return true;
  616. }
  617. return false;
  618. }
  619. void cmMpReport( cmRpt_t* rpt )
  620. {
  621. unsigned i;
  622. for(i=0; i<_cmMpRoot.devCnt; ++i)
  623. _cmMpDevicePrint(_cmMpRoot.devArray + i, i, rpt );
  624. }