Mercurial > sdl-ios-xcode
annotate src/cdrom/macos/SDL_syscdrom.c @ 746:72ef7ce609ef
Greatly simplified the SDL CPU info code
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 24 Nov 2003 09:22:12 +0000 |
| parents | f6ffac90895c |
| children | b8d311d90021 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
297
f6ffac90895c
Updated copyright information for 2002
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
| 0 | 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 | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* MacOS functions for system-level CD-ROM audio control */ | |
| 29 | |
| 30 #include <Devices.h> | |
| 31 #include <Files.h> | |
| 32 #include <LowMem.h> /* Use entry table macros, not functions in InterfaceLib */ | |
| 33 | |
| 34 #include "SDL_cdrom.h" | |
| 35 #include "SDL_syscdrom.h" | |
| 36 #include "SDL_syscdrom_c.h" | |
| 37 | |
| 38 /* Added by Matt Slot */ | |
| 39 #if !defined(LMGetUnitTableEntryCount) | |
| 40 #define LMGetUnitTableEntryCount() *(short *)0x01D2 | |
| 41 #endif | |
| 42 | |
| 43 /* The maximum number of CD-ROM drives we'll detect */ | |
| 44 #define MAX_DRIVES 26 | |
| 45 | |
| 46 /* A list of available CD-ROM drives */ | |
| 47 static long SDL_cdversion = 0; | |
| 48 static struct { | |
| 49 short dRefNum; | |
| 50 short driveNum; | |
| 51 long frames; | |
| 52 char name[256]; | |
| 53 Boolean hasAudio; | |
| 54 } SDL_cdlist[MAX_DRIVES]; | |
| 55 static StringPtr gDriverName = "\p.AppleCD"; | |
| 56 | |
| 57 /* The system-dependent CD control functions */ | |
| 58 static const char *SDL_SYS_CDName(int drive); | |
| 59 static int SDL_SYS_CDOpen(int drive); | |
| 60 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); | |
| 61 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); | |
| 62 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); | |
| 63 static int SDL_SYS_CDPause(SDL_CD *cdrom); | |
| 64 static int SDL_SYS_CDResume(SDL_CD *cdrom); | |
| 65 static int SDL_SYS_CDStop(SDL_CD *cdrom); | |
| 66 static int SDL_SYS_CDEject(SDL_CD *cdrom); | |
| 67 static void SDL_SYS_CDClose(SDL_CD *cdrom); | |
| 68 | |
| 69 static short SDL_SYS_ShortToBCD(short value) | |
| 70 { | |
| 71 return((value % 10) + (value / 10) * 0x10); /* Convert value to BCD */ | |
| 72 } | |
| 73 | |
| 74 static short SDL_SYS_BCDToShort(short value) | |
| 75 { | |
| 76 return((value % 0x10) + (value / 0x10) * 10); /* Convert value from BCD */ | |
| 77 } | |
| 78 | |
| 79 int SDL_SYS_CDInit(void) | |
| 80 { | |
| 81 SInt16 dRefNum = 0; | |
| 82 SInt16 first, last; | |
| 83 | |
| 84 SDL_numcds = 0; | |
| 85 | |
| 86 /* Check that the software is available */ | |
| 87 if (Gestalt(kGestaltAudioCDSelector, &SDL_cdversion) || | |
| 88 !SDL_cdversion) return(0); | |
| 89 | |
| 90 /* Fill in our driver capabilities */ | |
| 91 SDL_CDcaps.Name = SDL_SYS_CDName; | |
| 92 SDL_CDcaps.Open = SDL_SYS_CDOpen; | |
| 93 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; | |
| 94 SDL_CDcaps.Status = SDL_SYS_CDStatus; | |
| 95 SDL_CDcaps.Play = SDL_SYS_CDPlay; | |
| 96 SDL_CDcaps.Pause = SDL_SYS_CDPause; | |
| 97 SDL_CDcaps.Resume = SDL_SYS_CDResume; | |
| 98 SDL_CDcaps.Stop = SDL_SYS_CDStop; | |
| 99 SDL_CDcaps.Eject = SDL_SYS_CDEject; | |
| 100 SDL_CDcaps.Close = SDL_SYS_CDClose; | |
| 101 | |
| 102 /* Walk the list, count each AudioCD driver, and save the refnums */ | |
| 103 first = -1; | |
| 104 last = 0 - LMGetUnitTableEntryCount(); | |
| 105 for(dRefNum = first; dRefNum >= last; dRefNum--) { | |
| 106 Str255 driverName; | |
| 107 StringPtr namePtr; | |
| 108 DCtlHandle deviceEntry; | |
| 109 | |
| 110 deviceEntry = GetDCtlEntry(dRefNum); | |
| 111 if (! deviceEntry) continue; | |
| 112 | |
| 113 /* Is this an .AppleCD ? */ | |
| 114 namePtr = (*deviceEntry)->dCtlFlags & (1L << dRAMBased) ? | |
| 115 ((StringPtr) ((DCtlPtr) deviceEntry)->dCtlDriver + 18) : | |
| 116 ((StringPtr) (*deviceEntry)->dCtlDriver + 18); | |
| 117 BlockMoveData(namePtr, driverName, namePtr[0]+1); | |
| 118 if (driverName[0] > gDriverName[0]) driverName[0] = gDriverName[0]; | |
| 119 if (! EqualString(driverName, gDriverName, false, false)) continue; | |
| 120 | |
| 121 /* Record the basic info for each drive */ | |
| 122 SDL_cdlist[SDL_numcds].dRefNum = dRefNum; | |
| 123 BlockMoveData(namePtr + 1, SDL_cdlist[SDL_numcds].name, namePtr[0]); | |
| 124 SDL_cdlist[SDL_numcds].name[namePtr[0]] = 0; | |
| 125 SDL_cdlist[SDL_numcds].hasAudio = false; | |
| 126 SDL_numcds++; | |
| 127 } | |
| 128 return(0); | |
| 129 } | |
| 130 | |
| 131 static const char *SDL_SYS_CDName(int drive) | |
| 132 { | |
| 133 return(SDL_cdlist[drive].name); | |
| 134 } | |
| 135 | |
| 136 static int get_drivenum(int drive) | |
| 137 { | |
| 138 QHdr *driveQ = GetDrvQHdr(); | |
| 139 DrvQEl *driveElem; | |
| 140 | |
| 141 /* Update the drive number */ | |
| 142 SDL_cdlist[drive].driveNum = 0; | |
| 143 if ( driveQ->qTail ) { | |
| 144 driveQ->qTail->qLink = 0; | |
| 145 } | |
| 146 for ( driveElem=(DrvQEl *)driveQ->qHead; driveElem; | |
| 147 driveElem = (DrvQEl *)driveElem->qLink ) { | |
| 148 if ( driveElem->dQRefNum == SDL_cdlist[drive].dRefNum ) { | |
| 149 SDL_cdlist[drive].driveNum = driveElem->dQDrive; | |
| 150 break; | |
| 151 } | |
| 152 } | |
| 153 return(SDL_cdlist[drive].driveNum); | |
| 154 } | |
| 155 | |
| 156 static int SDL_SYS_CDOpen(int drive) | |
| 157 { | |
| 158 return(drive); | |
| 159 } | |
| 160 | |
| 161 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) | |
| 162 { | |
| 163 CDCntrlParam cdpb; | |
| 164 CDTrackData tracks[SDL_MAX_TRACKS]; | |
| 165 long i, leadout; | |
| 166 | |
| 167 /* Get the number of tracks on the CD by examining the TOC */ | |
| 168 memset(&cdpb, 0, sizeof(cdpb)); | |
| 169 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 170 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 171 cdpb.csCode = kReadTOC; | |
| 172 cdpb.csParam.words[0] = kGetTrackRange; | |
| 173 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 174 SDL_SetError("PBControlSync() failed"); | |
| 175 return(-1); | |
| 176 } | |
| 177 | |
| 178 cdrom->numtracks = | |
| 179 SDL_SYS_BCDToShort(cdpb.csParam.bytes[1]) - | |
| 180 SDL_SYS_BCDToShort(cdpb.csParam.bytes[0]) + 1; | |
| 181 if ( cdrom->numtracks > SDL_MAX_TRACKS ) | |
| 182 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 183 cdrom->status = CD_STOPPED; | |
| 184 cdrom->cur_track = 0; /* Apparently these are set elsewhere */ | |
| 185 cdrom->cur_frame = 0; /* Apparently these are set elsewhere */ | |
| 186 | |
| 187 | |
| 188 /* Get the lead out area of the CD by examining the TOC */ | |
| 189 memset(&cdpb, 0, sizeof(cdpb)); | |
| 190 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 191 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 192 cdpb.csCode = kReadTOC; | |
| 193 cdpb.csParam.words[0] = kGetLeadOutArea; | |
| 194 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 195 SDL_SetError("PBControlSync() failed"); | |
| 196 return(-1); | |
| 197 } | |
| 198 | |
| 199 leadout = MSF_TO_FRAMES( | |
| 200 SDL_SYS_BCDToShort(cdpb.csParam.bytes[0]), | |
| 201 SDL_SYS_BCDToShort(cdpb.csParam.bytes[1]), | |
| 202 SDL_SYS_BCDToShort(cdpb.csParam.bytes[2])); | |
| 203 | |
| 204 /* Get an array of track locations by examining the TOC */ | |
| 205 memset(tracks, 0, sizeof(tracks)); | |
| 206 memset(&cdpb, 0, sizeof(cdpb)); | |
| 207 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 208 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 209 cdpb.csCode = kReadTOC; | |
| 210 cdpb.csParam.words[0] = kGetTrackEntries; /* Type of Query */ | |
| 211 * ((long *) (cdpb.csParam.words+1)) = (long) tracks; | |
| 212 cdpb.csParam.words[3] = cdrom->numtracks * sizeof(tracks[0]); | |
| 213 * ((char *) (cdpb.csParam.words+4)) = 1; /* First track */ | |
| 214 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 215 SDL_SetError("PBControlSync() failed"); | |
| 216 return(-1); | |
| 217 } | |
| 218 | |
| 219 /* Read all the track TOC entries */ | |
| 220 SDL_cdlist[cdrom->id].hasAudio = false; | |
| 221 for ( i=0; i<cdrom->numtracks; ++i ) | |
| 222 { | |
| 223 cdrom->track[i].id = i+1; | |
| 224 if (tracks[i].entry.control & kDataTrackMask) | |
| 225 cdrom->track[i].type = SDL_DATA_TRACK; | |
| 226 else | |
| 227 { | |
| 228 cdrom->track[i].type = SDL_AUDIO_TRACK; | |
| 229 SDL_cdlist[SDL_numcds].hasAudio = true; | |
| 230 } | |
| 231 | |
| 232 cdrom->track[i].offset = MSF_TO_FRAMES( | |
| 233 SDL_SYS_BCDToShort(tracks[i].entry.min), | |
| 234 SDL_SYS_BCDToShort(tracks[i].entry.min), | |
| 235 SDL_SYS_BCDToShort(tracks[i].entry.frame)); | |
| 236 cdrom->track[i].length = MSF_TO_FRAMES( | |
| 237 SDL_SYS_BCDToShort(tracks[i+1].entry.min), | |
| 238 SDL_SYS_BCDToShort(tracks[i+1].entry.min), | |
| 239 SDL_SYS_BCDToShort(tracks[i+1].entry.frame)) - | |
| 240 cdrom->track[i].offset; | |
| 241 } | |
| 242 | |
| 243 /* Apparently SDL wants a fake last entry */ | |
| 244 cdrom->track[i].offset = leadout; | |
| 245 cdrom->track[i].length = 0; | |
| 246 | |
| 247 return(0); | |
| 248 } | |
| 249 | |
| 250 /* Get CD-ROM status */ | |
| 251 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) | |
| 252 { | |
| 253 CDCntrlParam cdpb; | |
| 254 CDstatus status = CD_ERROR; | |
| 255 Boolean spinning = false; | |
| 256 | |
| 257 if (position) *position = 0; | |
| 258 | |
| 259 /* Get the number of tracks on the CD by examining the TOC */ | |
| 260 if ( ! get_drivenum(cdrom->id) ) { | |
| 261 return(CD_TRAYEMPTY); | |
| 262 } | |
| 263 memset(&cdpb, 0, sizeof(cdpb)); | |
| 264 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 265 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 266 cdpb.csCode = kReadTOC; | |
| 267 cdpb.csParam.words[0] = kGetTrackRange; | |
| 268 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 269 SDL_SetError("PBControlSync() failed"); | |
| 270 return(CD_ERROR); | |
| 271 } | |
| 272 | |
| 273 cdrom->numtracks = | |
| 274 SDL_SYS_BCDToShort(cdpb.csParam.bytes[1]) - | |
| 275 SDL_SYS_BCDToShort(cdpb.csParam.bytes[0]) + 1; | |
| 276 if ( cdrom->numtracks > SDL_MAX_TRACKS ) | |
| 277 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 278 cdrom->cur_track = 0; /* Apparently these are set elsewhere */ | |
| 279 cdrom->cur_frame = 0; /* Apparently these are set elsewhere */ | |
| 280 | |
| 281 | |
| 282 if (1 || SDL_cdlist[cdrom->id].hasAudio) { | |
| 283 /* Get the current playback status */ | |
| 284 memset(&cdpb, 0, sizeof(cdpb)); | |
| 285 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 286 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 287 cdpb.csCode = kAudioStatus; | |
| 288 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 289 SDL_SetError("PBControlSync() failed"); | |
| 290 return(-1); | |
| 291 } | |
| 292 | |
| 293 switch(cdpb.csParam.cd.status) { | |
| 294 case kStatusPlaying: | |
| 295 status = CD_PLAYING; | |
| 296 spinning = true; | |
| 297 break; | |
| 298 case kStatusPaused: | |
| 299 status = CD_PAUSED; | |
| 300 spinning = true; | |
| 301 break; | |
| 302 case kStatusMuted: | |
| 303 status = CD_PLAYING; /* What should I do here? */ | |
| 304 spinning = true; | |
| 305 break; | |
| 306 case kStatusDone: | |
| 307 status = CD_STOPPED; | |
| 308 spinning = true; | |
| 309 break; | |
| 310 case kStatusStopped: | |
| 311 status = CD_STOPPED; | |
| 312 spinning = false; | |
| 313 break; | |
| 314 case kStatusError: | |
| 315 default: | |
| 316 status = CD_ERROR; | |
| 317 spinning = false; | |
| 318 break; | |
| 319 } | |
| 320 | |
| 321 if (spinning && position) *position = MSF_TO_FRAMES( | |
| 322 SDL_SYS_BCDToShort(cdpb.csParam.cd.minute), | |
| 323 SDL_SYS_BCDToShort(cdpb.csParam.cd.second), | |
| 324 SDL_SYS_BCDToShort(cdpb.csParam.cd.frame)); | |
| 325 } | |
| 326 else | |
| 327 status = CD_ERROR; /* What should I do here? */ | |
| 328 | |
| 329 return(status); | |
| 330 } | |
| 331 | |
| 332 /* Start play */ | |
| 333 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | |
| 334 { | |
| 335 CDCntrlParam cdpb; | |
| 336 | |
| 337 /* Pause the current audio playback to avoid audible artifacts */ | |
| 338 if ( SDL_SYS_CDPause(cdrom) < 0 ) { | |
| 339 return(-1); | |
| 340 } | |
| 341 | |
| 342 /* Specify the AudioCD playback mode */ | |
| 343 memset(&cdpb, 0, sizeof(cdpb)); | |
| 344 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 345 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 346 cdpb.csCode = kSetPlayMode; | |
| 347 cdpb.csParam.bytes[0] = false; /* Repeat? */ | |
| 348 cdpb.csParam.bytes[1] = kPlayModeSequential; /* Play mode */ | |
| 349 /* ¥¥¥ÊTreat as soft error, NEC Drive doesnt support this call ¥¥¥ */ | |
| 350 PBControlSync((ParmBlkPtr) &cdpb); | |
| 351 | |
| 352 #if 1 | |
| 353 /* Specify the end of audio playback */ | |
| 354 memset(&cdpb, 0, sizeof(cdpb)); | |
| 355 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 356 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 357 cdpb.csCode = kAudioStop; | |
| 358 cdpb.csParam.words[0] = kBlockPosition; /* Position Mode */ | |
| 359 *(long *) (cdpb.csParam.words + 1) = start+length-1; /* Search Address */ | |
| 360 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 361 SDL_SetError("PBControlSync() failed"); | |
| 362 return(-1); | |
| 363 } | |
| 364 | |
| 365 /* Specify the start of audio playback, and start it */ | |
| 366 memset(&cdpb, 0, sizeof(cdpb)); | |
| 367 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 368 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 369 cdpb.csCode = kAudioPlay; | |
| 370 cdpb.csParam.words[0] = kBlockPosition; /* Position Mode */ | |
| 371 *(long *) (cdpb.csParam.words + 1) = start+1; /* Search Address */ | |
| 372 cdpb.csParam.words[3] = false; /* Stop address? */ | |
| 373 cdpb.csParam.words[4] = kStereoPlayMode; /* Audio Play Mode */ | |
| 374 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 375 SDL_SetError("PBControlSync() failed"); | |
| 376 return(-1); | |
| 377 } | |
| 378 #else | |
| 379 /* Specify the end of audio playback */ | |
| 380 FRAMES_TO_MSF(start+length, &m, &s, &f); | |
| 381 memset(&cdpb, 0, sizeof(cdpb)); | |
| 382 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 383 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 384 cdpb.csCode = kAudioStop; | |
| 385 cdpb.csParam.words[0] = kTrackPosition; /* Position Mode */ | |
| 386 cdpb.csParam.words[1] = 0; /* Search Address (hiword)*/ | |
| 387 cdpb.csParam.words[2] = /* Search Address (loword)*/ | |
| 388 SDL_SYS_ShortToBCD(cdrom->numtracks); | |
| 389 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 390 SDL_SetError("PBControlSync() failed"); | |
| 391 return(-1); | |
| 392 } | |
| 393 | |
| 394 /* Specify the start of audio playback, and start it */ | |
| 395 FRAMES_TO_MSF(start, &m, &s, &f); | |
| 396 memset(&cdpb, 0, sizeof(cdpb)); | |
| 397 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 398 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 399 cdpb.csCode = kAudioPlay; | |
| 400 cdpb.csParam.words[0] = kTrackPosition; /* Position Mode */ | |
| 401 cdpb.csParam.words[1] = 0; /* Search Address (hiword)*/ | |
| 402 cdpb.csParam.words[2] = SDL_SYS_ShortToBCD(1); /* Search Address (loword)*/ | |
| 403 cdpb.csParam.words[3] = false; /* Stop address? */ | |
| 404 cdpb.csParam.words[4] = kStereoPlayMode; /* Audio Play Mode */ | |
| 405 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 406 SDL_SetError("PBControlSync() failed"); | |
| 407 return(-1); | |
| 408 } | |
| 409 #endif | |
| 410 | |
| 411 return(0); | |
| 412 } | |
| 413 | |
| 414 /* Pause play */ | |
| 415 static int SDL_SYS_CDPause(SDL_CD *cdrom) | |
| 416 { | |
| 417 CDCntrlParam cdpb; | |
| 418 | |
| 419 memset(&cdpb, 0, sizeof(cdpb)); | |
| 420 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 421 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 422 cdpb.csCode = kAudioPause; | |
| 423 cdpb.csParam.words[0] = 0; /* Pause/Continue Flag (hiword) */ | |
| 424 cdpb.csParam.words[1] = 1; /* Pause/Continue Flag (loword) */ | |
| 425 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 426 SDL_SetError("PBControlSync() failed"); | |
| 427 return(-1); | |
| 428 } | |
| 429 return(0); | |
| 430 } | |
| 431 | |
| 432 /* Resume play */ | |
| 433 static int SDL_SYS_CDResume(SDL_CD *cdrom) | |
| 434 { | |
| 435 CDCntrlParam cdpb; | |
| 436 | |
| 437 memset(&cdpb, 0, sizeof(cdpb)); | |
| 438 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 439 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 440 cdpb.csCode = kAudioPause; | |
| 441 cdpb.csParam.words[0] = 0; /* Pause/Continue Flag (hiword) */ | |
| 442 cdpb.csParam.words[1] = 0; /* Pause/Continue Flag (loword) */ | |
| 443 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 444 SDL_SetError("PBControlSync() failed"); | |
| 445 return(-1); | |
| 446 } | |
| 447 return(0); | |
| 448 } | |
| 449 | |
| 450 /* Stop play */ | |
| 451 static int SDL_SYS_CDStop(SDL_CD *cdrom) | |
| 452 { | |
| 453 CDCntrlParam cdpb; | |
| 454 | |
| 455 memset(&cdpb, 0, sizeof(cdpb)); | |
| 456 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; | |
| 457 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 458 cdpb.csCode = kAudioStop; | |
| 459 cdpb.csParam.words[0] = 0; /* Position Mode */ | |
| 460 cdpb.csParam.words[1] = 0; /* Search Address (hiword) */ | |
| 461 cdpb.csParam.words[2] = 0; /* Search Address (loword) */ | |
| 462 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 463 SDL_SetError("PBControlSync() failed"); | |
| 464 return(-1); | |
| 465 } | |
| 466 return(0); | |
| 467 } | |
| 468 | |
| 469 /* Eject the CD-ROM */ | |
| 470 static int SDL_SYS_CDEject(SDL_CD *cdrom) | |
| 471 { | |
| 472 Boolean disk = false; | |
| 473 QHdr *driveQ = GetDrvQHdr(); | |
| 474 DrvQEl *driveElem; | |
| 475 HParamBlockRec hpb; | |
| 476 ParamBlockRec cpb; | |
| 477 | |
| 478 for ( driveElem = (DrvQEl *) driveQ->qHead; driveElem; driveElem = | |
| 479 (driveElem) ? ((DrvQEl *) driveElem->qLink) : | |
| 480 ((DrvQEl *) driveQ->qHead) ) { | |
| 481 if ( driveQ->qTail ) { | |
| 482 driveQ->qTail->qLink = 0; | |
| 483 } | |
| 484 if ( driveElem->dQRefNum != SDL_cdlist[cdrom->id].dRefNum ) { | |
| 485 continue; | |
| 486 } | |
| 487 | |
| 488 /* Does drive contain mounted volume? If not, skip */ | |
| 489 memset(&hpb, 0, sizeof(hpb)); | |
| 490 hpb.volumeParam.ioVRefNum = driveElem->dQDrive; | |
| 491 if ( PBHGetVInfoSync(&hpb) != noErr ) { | |
| 492 continue; | |
| 493 } | |
| 494 if ( (UnmountVol(0, driveElem->dQDrive) == noErr) && | |
| 495 (Eject(0, driveElem->dQDrive) == noErr) ) { | |
| 496 driveElem = 0; /* Clear pointer to reset our loop */ | |
| 497 disk = true; | |
| 498 } | |
| 499 } | |
| 500 | |
| 501 /* If no disk is present, just eject the tray */ | |
| 502 if (! disk) { | |
| 503 memset(&cpb, 0, sizeof(cpb)); | |
| 504 cpb.cntrlParam.ioVRefNum = 0; /* No Drive */ | |
| 505 cpb.cntrlParam.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 506 cpb.cntrlParam.csCode = kEjectTheDisc; | |
| 507 if ( PBControlSync((ParmBlkPtr)&cpb) != noErr ) { | |
| 508 SDL_SetError("PBControlSync() failed"); | |
| 509 return(-1); | |
| 510 } | |
| 511 } | |
| 512 return(0); | |
| 513 } | |
| 514 | |
| 515 /* Close the CD-ROM handle */ | |
| 516 static void SDL_SYS_CDClose(SDL_CD *cdrom) | |
| 517 { | |
| 518 return; | |
| 519 } | |
| 520 | |
| 521 void SDL_SYS_CDQuit(void) | |
| 522 { | |
| 523 while(SDL_numcds--) | |
| 524 memset(SDL_cdlist + SDL_numcds, 0, sizeof(SDL_cdlist[0])); | |
| 525 } | |
| 526 |