| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Library General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Library General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Library General Public |
| 16 | License along with this library; if not, write to the Free |
| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | #include "CDPlayer.h" |
| 25 | #include "AudioFilePlayer.h" |
| 26 | #include "SDLOSXCAGuard.h" |
| 27 | |
| 28 | /* we're exporting these functions into C land for SDL_syscdrom.c */ |
| 29 | /*extern "C" {*/ |
| 30 | |
| 31 | /*/////////////////////////////////////////////////////////////////////////// |
| 32 | Constants |
| 33 | //////////////////////////////////////////////////////////////////////////*/ |
| 34 | |
| 35 | #define kAudioCDFilesystemID (UInt16)(('J' << 8) | 'H') /* 'JH'; this avoids compiler warning */ |
| 36 | |
| 37 | /* XML PList keys */ |
| 38 | #define kRawTOCDataString "Format 0x02 TOC Data" |
| 39 | #define kSessionsString "Sessions" |
| 40 | #define kSessionTypeString "Session Type" |
| 41 | #define kTrackArrayString "Track Array" |
| 42 | #define kFirstTrackInSessionString "First Track" |
| 43 | #define kLastTrackInSessionString "Last Track" |
| 44 | #define kLeadoutBlockString "Leadout Block" |
| 45 | #define kDataKeyString "Data" |
| 46 | #define kPointKeyString "Point" |
| 47 | #define kSessionNumberKeyString "Session Number" |
| 48 | #define kStartBlockKeyString "Start Block" |
| 49 | |
| 50 | /*/////////////////////////////////////////////////////////////////////////// |
| 51 | Globals |
| 52 | //////////////////////////////////////////////////////////////////////////*/ |
| 53 | |
| 54 | #pragma mark -- Globals -- |
| 55 | |
| 56 | static int playBackWasInit = 0; |
| 57 | static AudioUnit theUnit; |
| 58 | static AudioFilePlayer* thePlayer = NULL; |
| 59 | static CDPlayerCompletionProc completionProc = NULL; |
| 60 | static SDL_mutex *apiMutex = NULL; |
| 61 | static SDL_sem *callbackSem; |
| 62 | static SDL_CD* theCDROM; |
| 63 | |
| 64 | /*/////////////////////////////////////////////////////////////////////////// |
| 65 | Prototypes |
| 66 | //////////////////////////////////////////////////////////////////////////*/ |
| 67 | |
| 68 | #pragma mark -- Prototypes -- |
| 69 | |
| 70 | static OSStatus CheckInit (); |
| 71 | |
| 72 | static void FilePlayNotificationHandler (void* inRefCon, OSStatus inStatus); |
| 73 | |
| 74 | static int RunCallBackThread (void* inRefCon); |
| 75 | |
| 76 | |
| 77 | #pragma mark -- Public Functions -- |
| 78 | |
| 79 | void Lock () |
| 80 | { |
| 81 | if (!apiMutex) { |
| 82 | apiMutex = SDL_CreateMutex(); |
| 83 | } |
| 84 | SDL_mutexP(apiMutex); |
| 85 | } |
| 86 | |
| 87 | void Unlock () |
| 88 | { |
| 89 | SDL_mutexV(apiMutex); |
| 90 | } |
| 91 | |
| 92 | int DetectAudioCDVolumes(FSVolumeRefNum *volumes, int numVolumes) |
| 93 | { |
| 94 | int volumeIndex; |
| 95 | int cdVolumeCount = 0; |
| 96 | OSStatus result = noErr; |
| 97 | |
| 98 | for (volumeIndex = 1; result == noErr || result != nsvErr; volumeIndex++) |
| 99 | { |
| 100 | FSVolumeRefNum actualVolume; |
| 101 | FSVolumeInfo volumeInfo; |
| 102 | |
| 103 | memset (&volumeInfo, 0, sizeof(volumeInfo)); |
| 104 | |
| 105 | result = FSGetVolumeInfo (kFSInvalidVolumeRefNum, |
| 106 | volumeIndex, |
| 107 | &actualVolume, |
| 108 | kFSVolInfoFSInfo, |
| 109 | &volumeInfo, |
| 110 | NULL, |
| 111 | NULL); |
| 112 | |
| 113 | if (result == noErr) |
| 114 | { |
| 115 | if (volumeInfo.filesystemID == kAudioCDFilesystemID) /* It's an audio CD */ |
| 116 | { |
| 117 | if (volumes != NULL && cdVolumeCount < numVolumes) |
| 118 | volumes[cdVolumeCount] = actualVolume; |
| 119 | |
| 120 | cdVolumeCount++; |
| 121 | } |
| 122 | } |
| 123 | else |
| 124 | { |
| 125 | /* I'm commenting this out because it seems to be harmless */ |
| 126 | /*SDL_SetError ("DetectAudioCDVolumes: FSGetVolumeInfo returned %d", result);*/ |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | return cdVolumeCount; |
| 131 | } |
| 132 | |
| 133 | int ReadTOCData (FSVolumeRefNum theVolume, SDL_CD *theCD) |
| 134 | { |
| 135 | HFSUniStr255 dataForkName; |
| 136 | OSStatus theErr; |
| 137 | FSIORefNum forkRefNum; |
| 138 | SInt64 forkSize; |
| 139 | Ptr forkData = 0; |
| 140 | ByteCount actualRead; |
| 141 | CFDataRef dataRef = 0; |
| 142 | CFPropertyListRef propertyListRef = 0; |
| 143 | int i; |
| 144 | FSRefParam fsRefPB; |
| 145 | FSRef tocPlistFSRef; |
| 146 | FSRef rootRef; |
| 147 | const char* error = "Unspecified Error"; |
| 148 | const UniChar uniName[] = { '.','T','O','C','.','p','l','i','s','t' }; |
| 149 | |
| 150 | theErr = FSGetVolumeInfo(theVolume, 0, 0, kFSVolInfoNone, 0, 0, &rootRef); |
| 151 | if(theErr != noErr) { |
| 152 | error = "FSGetVolumeInfo"; |
| 153 | goto bail; |
| 154 | } |
| 155 | |
| 156 | SDL_memset(&fsRefPB, '\0', sizeof (fsRefPB)); |
| 157 | |
| 158 | /* get stuff from .TOC.plist */ |
| 159 | fsRefPB.ref = &rootRef; |
| 160 | fsRefPB.newRef = &tocPlistFSRef; |
| 161 | fsRefPB.nameLength = sizeof (uniName) / sizeof (uniName[0]); |
| 162 | fsRefPB.name = uniName; |
| 163 | fsRefPB.textEncodingHint = kTextEncodingUnknown; |
| 164 | |
| 165 | theErr = PBMakeFSRefUnicodeSync (&fsRefPB); |
| 166 | if(theErr != noErr) { |
| 167 | error = "PBMakeFSRefUnicodeSync"; |
| 168 | goto bail; |
| 169 | } |
| 170 | |
| 171 | /* Load and parse the TOC XML data */ |
| 172 | |
| 173 | theErr = FSGetDataForkName (&dataForkName); |
| 174 | if (theErr != noErr) { |
| 175 | error = "FSGetDataForkName"; |
| 176 | goto bail; |
| 177 | } |
| 178 | |
| 179 | theErr = FSOpenFork (&tocPlistFSRef, dataForkName.length, dataForkName.unicode, fsRdPerm, &forkRefNum); |
| 180 | if (theErr != noErr) { |
| 181 | error = "FSOpenFork"; |
| 182 | goto bail; |
| 183 | } |
| 184 | |
| 185 | theErr = FSGetForkSize (forkRefNum, &forkSize); |
| 186 | if (theErr != noErr) { |
| 187 | error = "FSGetForkSize"; |
| 188 | goto bail; |
| 189 | } |
| 190 | |
| 191 | /* Allocate some memory for the XML data */ |
| 192 | forkData = NewPtr (forkSize); |
| 193 | if(forkData == NULL) { |
| 194 | error = "NewPtr"; |
| 195 | goto bail; |
| 196 | } |
| 197 | |
| 198 | theErr = FSReadFork (forkRefNum, fsFromStart, 0 /* offset location */, forkSize, forkData, &actualRead); |
| 199 | if(theErr != noErr) { |
| 200 | error = "FSReadFork"; |
| 201 | goto bail; |
| 202 | } |
| 203 | |
| 204 | dataRef = CFDataCreate (kCFAllocatorDefault, (UInt8 *)forkData, forkSize); |
| 205 | if(dataRef == 0) { |
| 206 | error = "CFDataCreate"; |
| 207 | goto bail; |
| 208 | } |
| 209 | |
| 210 | propertyListRef = CFPropertyListCreateFromXMLData (kCFAllocatorDefault, |
| 211 | dataRef, |
| 212 | kCFPropertyListImmutable, |
| 213 | NULL); |
| 214 | if (propertyListRef == NULL) { |
| 215 | error = "CFPropertyListCreateFromXMLData"; |
| 216 | goto bail; |
| 217 | } |
| 218 | |
| 219 | /* Now we got the Property List in memory. Parse it. */ |
| 220 | |
| 221 | /* First, make sure the root item is a CFDictionary. If not, release and bail. */ |
| 222 | if(CFGetTypeID(propertyListRef)== CFDictionaryGetTypeID()) |
| 223 | { |
| 224 | CFDictionaryRef dictRef = (CFDictionaryRef)propertyListRef; |
| 225 | |
| 226 | CFDataRef theRawTOCDataRef; |
| 227 | CFArrayRef theSessionArrayRef; |
| 228 | CFIndex numSessions; |
| 229 | CFIndex index; |
| 230 | |
| 231 | /* This is how we get the Raw TOC Data */ |
| 232 | theRawTOCDataRef = (CFDataRef)CFDictionaryGetValue (dictRef, CFSTR(kRawTOCDataString)); |
| 233 | |
| 234 | /* Get the session array info. */ |
| 235 | theSessionArrayRef = (CFArrayRef)CFDictionaryGetValue (dictRef, CFSTR(kSessionsString)); |
| 236 | |
| 237 | /* Find out how many sessions there are. */ |
| 238 | numSessions = CFArrayGetCount (theSessionArrayRef); |
| 239 | |
| 240 | /* Initialize the total number of tracks to 0 */ |
| 241 | theCD->numtracks = 0; |
| 242 | |
| 243 | /* Iterate over all sessions, collecting the track data */ |
| 244 | for(index = 0; index < numSessions; index++) |
| 245 | { |
| 246 | CFDictionaryRef theSessionDict; |
| 247 | CFNumberRef leadoutBlock; |
| 248 | CFArrayRef trackArray; |
| 249 | CFIndex numTracks; |
| 250 | CFIndex trackIndex; |
| 251 | UInt32 value = 0; |
| 252 | |
| 253 | theSessionDict = (CFDictionaryRef) CFArrayGetValueAtIndex (theSessionArrayRef, index); |
| 254 | leadoutBlock = (CFNumberRef) CFDictionaryGetValue (theSessionDict, CFSTR(kLeadoutBlockString)); |
| 255 | |
| 256 | trackArray = (CFArrayRef)CFDictionaryGetValue (theSessionDict, CFSTR(kTrackArrayString)); |
| 257 | |
| 258 | numTracks = CFArrayGetCount (trackArray); |
| 259 | |
| 260 | for(trackIndex = 0; trackIndex < numTracks; trackIndex++) { |
| 261 | |
| 262 | CFDictionaryRef theTrackDict; |
| 263 | CFNumberRef trackNumber; |
| 264 | CFNumberRef sessionNumber; |
| 265 | CFNumberRef startBlock; |
| 266 | CFBooleanRef isDataTrack; |
| 267 | UInt32 value; |
| 268 | |
| 269 | theTrackDict = (CFDictionaryRef) CFArrayGetValueAtIndex (trackArray, trackIndex); |
| 270 | |
| 271 | trackNumber = (CFNumberRef) CFDictionaryGetValue (theTrackDict, CFSTR(kPointKeyString)); |
| 272 | sessionNumber = (CFNumberRef) CFDictionaryGetValue (theTrackDict, CFSTR(kSessionNumberKeyString)); |
| 273 | startBlock = (CFNumberRef) CFDictionaryGetValue (theTrackDict, CFSTR(kStartBlockKeyString)); |
| 274 | isDataTrack = (CFBooleanRef) CFDictionaryGetValue (theTrackDict, CFSTR(kDataKeyString)); |
| 275 | |
| 276 | /* Fill in the SDL_CD struct */ |
| 277 | int idx = theCD->numtracks++; |
| 278 | |
| 279 | CFNumberGetValue (trackNumber, kCFNumberSInt32Type, &value); |
| 280 | theCD->track[idx].id = value; |
| 281 | |
| 282 | CFNumberGetValue (startBlock, kCFNumberSInt32Type, &value); |
| 283 | theCD->track[idx].offset = value; |
| 284 | |
| 285 | theCD->track[idx].type = (isDataTrack == kCFBooleanTrue) ? SDL_DATA_TRACK : SDL_AUDIO_TRACK; |
| 286 | |
| 287 | /* Since the track lengths are not stored in .TOC.plist we compute them. */ |
| 288 | if (trackIndex > 0) { |
| 289 | theCD->track[idx-1].length = theCD->track[idx].offset - theCD->track[idx-1].offset; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | /* Compute the length of the last track */ |
| 294 | CFNumberGetValue (leadoutBlock, kCFNumberSInt32Type, &value); |
| 295 | |
| 296 | theCD->track[theCD->numtracks-1].length = |
| 297 | value - theCD->track[theCD->numtracks-1].offset; |
| 298 | |
| 299 | /* Set offset to leadout track */ |
| 300 | theCD->track[theCD->numtracks].offset = value; |
| 301 | } |
| 302 | |
| 303 | } |
| 304 | |
| 305 | theErr = 0; |
| 306 | goto cleanup; |
| 307 | bail: |
| 308 | SDL_SetError ("ReadTOCData: %s returned %d", error, theErr); |
| 309 | theErr = -1; |
| 310 | cleanup: |
| 311 | |
| 312 | if (propertyListRef != NULL) |
| 313 | CFRelease(propertyListRef); |
| 314 | if (dataRef != NULL) |
| 315 | CFRelease(dataRef); |
| 316 | if (forkData != NULL) |
| 317 | DisposePtr(forkData); |
| 318 | |
| 319 | FSCloseFork (forkRefNum); |
| 320 | |
| 321 | return theErr; |
| 322 | } |
| 323 | |
| 324 | int ListTrackFiles (FSVolumeRefNum theVolume, FSRef *trackFiles, int numTracks) |
| 325 | { |
| 326 | OSStatus result = -1; |
| 327 | FSIterator iterator; |
| 328 | ItemCount actualObjects; |
| 329 | FSRef rootDirectory; |
| 330 | FSRef ref; |
| 331 | HFSUniStr255 nameStr; |
| 332 | |
| 333 | result = FSGetVolumeInfo (theVolume, |
| 334 | 0, |
| 335 | NULL, |
| 336 | kFSVolInfoFSInfo, |
| 337 | NULL, |
| 338 | NULL, |
| 339 | &rootDirectory); |
| 340 | |
| 341 | if (result != noErr) { |
| 342 | SDL_SetError ("ListTrackFiles: FSGetVolumeInfo returned %d", result); |
| 343 | return result; |
| 344 | } |
| 345 | |
| 346 | result = FSOpenIterator (&rootDirectory, kFSIterateFlat, &iterator); |
| 347 | if (result == noErr) { |
| 348 | do |
| 349 | { |
| 350 | result = FSGetCatalogInfoBulk (iterator, 1, &actualObjects, |
| 351 | NULL, kFSCatInfoNone, NULL, &ref, NULL, &nameStr); |
| 352 | if (result == noErr) { |
| 353 | |
| 354 | CFStringRef name; |
| 355 | name = CFStringCreateWithCharacters (NULL, nameStr.unicode, nameStr.length); |
| 356 | |
| 357 | /* Look for .aiff extension */ |
| 358 | if (CFStringHasSuffix (name, CFSTR(".aiff")) || |
| 359 | CFStringHasSuffix (name, CFSTR(".cdda"))) { |
| 360 | |
| 361 | /* Extract the track id from the filename */ |
| 362 | int trackID = 0, i = 0; |
| 363 | while (i < nameStr.length && !isdigit(nameStr.unicode[i])) { |
| 364 | ++i; |
| 365 | } |
| 366 | while (i < nameStr.length && isdigit(nameStr.unicode[i])) { |
| 367 | trackID = 10 * trackID +(nameStr.unicode[i] - '0'); |
| 368 | ++i; |
| 369 | } |
| 370 | |
| 371 | #if DEBUG_CDROM |
| 372 | printf("Found AIFF for track %d: '%s'\n", trackID, |
| 373 | CFStringGetCStringPtr (name, CFStringGetSystemEncoding())); |
| 374 | #endif |
| 375 | |
| 376 | /* Track ID's start at 1, but we want to start at 0 */ |
| 377 | trackID--; |
| 378 | |
| 379 | assert(0 <= trackID && trackID <= SDL_MAX_TRACKS); |
| 380 | |
| 381 | if (trackID < numTracks) |
| 382 | memcpy (&trackFiles[trackID], &ref, sizeof(FSRef)); |
| 383 | } |
| 384 | CFRelease (name); |
| 385 | } |
| 386 | } while(noErr == result); |
| 387 | FSCloseIterator (iterator); |
| 388 | } |
| 389 | |
| 390 | return 0; |
| 391 | } |
| 392 | |
| 393 | int LoadFile (const FSRef *ref, int startFrame, int stopFrame) |
| 394 | { |
| 395 | int error = -1; |
| 396 | |
| 397 | if (CheckInit () < 0) |
| 398 | goto bail; |
| 399 | |
| 400 | /* release any currently playing file */ |
| 401 | if (ReleaseFile () < 0) |
| 402 | goto bail; |
| 403 | |
| 404 | #if DEBUG_CDROM |
| 405 | printf ("LoadFile: %d %d\n", startFrame, stopFrame); |
| 406 | #endif |
| 407 | |
| 408 | /*try {*/ |
| 409 | |
| 410 | /* create a new player, and attach to the audio unit */ |
| 411 | |
| 412 | thePlayer = new_AudioFilePlayer(ref); |
| 413 | if (thePlayer == NULL) { |
| 414 | SDL_SetError ("LoadFile: Could not create player"); |
| 415 | return -3; /*throw (-3);*/ |
| 416 | } |
| 417 | |
| 418 | if (!thePlayer->SetDestination(thePlayer, &theUnit)) |
| 419 | goto bail; |
| 420 | |
| 421 | if (startFrame >= 0) |
| 422 | thePlayer->SetStartFrame (thePlayer, startFrame); |
| 423 | |
| 424 | if (stopFrame >= 0 && stopFrame > startFrame) |
| 425 | thePlayer->SetStopFrame (thePlayer, stopFrame); |
| 426 | |
| 427 | /* we set the notifier later */ |
| 428 | /*thePlayer->SetNotifier(thePlayer, FilePlayNotificationHandler, NULL);*/ |
| 429 | |
| 430 | if (!thePlayer->Connect(thePlayer)) |
| 431 | goto bail; |
| 432 | |
| 433 | #if DEBUG_CDROM |
| 434 | thePlayer->Print(thePlayer); |
| 435 | fflush (stdout); |
| 436 | #endif |
| 437 | /*} |
| 438 | catch (...) |
| 439 | { |
| 440 | goto bail; |
| 441 | }*/ |
| 442 | |
| 443 | error = 0; |
| 444 | |
| 445 | bail: |
| 446 | return error; |
| 447 | } |
| 448 | |
| 449 | int ReleaseFile () |
| 450 | { |
| 451 | int error = -1; |
| 452 | |
| 453 | /* (Don't see any way that the original C++ code could throw here.) --ryan. */ |
| 454 | /*try {*/ |
| 455 | if (thePlayer != NULL) { |
| 456 | |
| 457 | thePlayer->Disconnect(thePlayer); |
| 458 | |
| 459 | delete_AudioFilePlayer(thePlayer); |
| 460 | |
| 461 | thePlayer = NULL; |
| 462 | } |
| 463 | /*} |
| 464 | catch (...) |
| 465 | { |
| 466 | goto bail; |
| 467 | }*/ |
| 468 | |
| 469 | error = 0; |
| 470 | |
| 471 | /* bail: */ |
| 472 | return error; |
| 473 | } |
| 474 | |
| 475 | int PlayFile () |
| 476 | { |
| 477 | OSStatus result = -1; |
| 478 | |
| 479 | if (CheckInit () < 0) |
| 480 | goto bail; |
| 481 | |
| 482 | /*try {*/ |
| 483 | |
| 484 | // start processing of the audio unit |
| 485 | result = AudioOutputUnitStart (theUnit); |
| 486 | if (result) goto bail; //THROW_RESULT("PlayFile: AudioOutputUnitStart") |
| 487 | |
| 488 | /*} |
| 489 | catch (...) |
| 490 | { |
| 491 | goto bail; |
| 492 | }*/ |
| 493 | |
| 494 | result = 0; |
| 495 | |
| 496 | bail: |
| 497 | return result; |
| 498 | } |
| 499 | |
| 500 | int PauseFile () |
| 501 | { |
| 502 | OSStatus result = -1; |
| 503 | |
| 504 | if (CheckInit () < 0) |
| 505 | goto bail; |
| 506 | |
| 507 | /*try {*/ |
| 508 | |
| 509 | /* stop processing the audio unit */ |
| 510 | result = AudioOutputUnitStop (theUnit); |
| 511 | if (result) goto bail; /*THROW_RESULT("PauseFile: AudioOutputUnitStop")*/ |
| 512 | /*} |
| 513 | catch (...) |
| 514 | { |
| 515 | goto bail; |
| 516 | }*/ |
| 517 | |
| 518 | result = 0; |
| 519 | bail: |
| 520 | return result; |
| 521 | } |
| 522 | |
| 523 | void SetCompletionProc (CDPlayerCompletionProc proc, SDL_CD *cdrom) |
| 524 | { |
| 525 | assert(thePlayer != NULL); |
| 526 | |
| 527 | theCDROM = cdrom; |
| 528 | completionProc = proc; |
| 529 | thePlayer->SetNotifier (thePlayer, FilePlayNotificationHandler, cdrom); |
| 530 | } |
| 531 | |
| 532 | int GetCurrentFrame () |
| 533 | { |
| 534 | int frame; |
| 535 | |
| 536 | if (thePlayer == NULL) |
| 537 | frame = 0; |
| 538 | else |
| 539 | frame = thePlayer->GetCurrentFrame (thePlayer); |
| 540 | |
| 541 | return frame; |
| 542 | } |
| 543 | |
| 544 | |
| 545 | #pragma mark -- Private Functions -- |
| 546 | |
| 547 | static OSStatus CheckInit () |
| 548 | { |
| 549 | if (playBackWasInit) |
| 550 | return 0; |
| 551 | |
| 552 | OSStatus result = noErr; |
| 553 | |
| 554 | /* Create the callback semaphore */ |
| 555 | callbackSem = SDL_CreateSemaphore(0); |
| 556 | |
| 557 | /* Start callback thread */ |
| 558 | SDL_CreateThread(RunCallBackThread, NULL); |
| 559 | |
| 560 | { /*try {*/ |
| 561 | ComponentDescription desc; |
| 562 | |
| 563 | desc.componentType = kAudioUnitType_Output; |
| 564 | desc.componentSubType = kAudioUnitSubType_DefaultOutput; |
| 565 | desc.componentManufacturer = kAudioUnitManufacturer_Apple; |
| 566 | desc.componentFlags = 0; |
| 567 | desc.componentFlagsMask = 0; |
| 568 | |
| 569 | Component comp = FindNextComponent (NULL, &desc); |
| 570 | if (comp == NULL) { |
| 571 | SDL_SetError ("CheckInit: FindNextComponent returned NULL"); |
| 572 | if (result) return -1; //throw(internalComponentErr); |
| 573 | } |
| 574 | |
| 575 | result = OpenAComponent (comp, &theUnit); |
| 576 | if (result) return -1; //THROW_RESULT("CheckInit: OpenAComponent") |
| 577 | |
| 578 | // you need to initialize the output unit before you set it as a destination |
| 579 | result = AudioUnitInitialize (theUnit); |
| 580 | if (result) return -1; //THROW_RESULT("CheckInit: AudioUnitInitialize") |
| 581 | |
| 582 | |
| 583 | playBackWasInit = true; |
| 584 | } |
| 585 | /*catch (...) |
| 586 | { |
| 587 | return -1; |
| 588 | }*/ |
| 589 | |
| 590 | return 0; |
| 591 | } |
| 592 | |
| 593 | static void FilePlayNotificationHandler(void * inRefCon, OSStatus inStatus) |
| 594 | { |
| 595 | if (inStatus == kAudioFilePlay_FileIsFinished) { |
| 596 | |
| 597 | /* notify non-CA thread to perform the callback */ |
| 598 | SDL_SemPost(callbackSem); |
| 599 | |
| 600 | } else if (inStatus == kAudioFilePlayErr_FilePlayUnderrun) { |
| 601 | |
| 602 | SDL_SetError ("CDPlayer Notification: buffer underrun"); |
| 603 | } else if (inStatus == kAudioFilePlay_PlayerIsUninitialized) { |
| 604 | |
| 605 | SDL_SetError ("CDPlayer Notification: player is uninitialized"); |
| 606 | } else { |
| 607 | |
| 608 | SDL_SetError ("CDPlayer Notification: unknown error %ld", inStatus); |
| 609 | } |
| 610 | } |
| 611 | |
| 612 | static int RunCallBackThread (void *param) |
| 613 | { |
| 614 | for (;;) { |
| 615 | |
| 616 | SDL_SemWait(callbackSem); |
| 617 | |
| 618 | if (completionProc && theCDROM) { |
| 619 | #if DEBUG_CDROM |
| 620 | printf ("callback!\n"); |
| 621 | #endif |
| 622 | (*completionProc)(theCDROM); |
| 623 | } else { |
| 624 | #if DEBUG_CDROM |
| 625 | printf ("callback?\n"); |
| 626 | #endif |
| 627 | } |
| 628 | } |
| 629 | |
| 630 | #if DEBUG_CDROM |
| 631 | printf ("thread dying now...\n"); |
| 632 | #endif |
| 633 | |
| 634 | return 0; |
| 635 | } |
| 636 | |
| 637 | /*}; // extern "C" */ |