Mercurial > sdl-ios-xcode
annotate src/cdrom/macos/SDL_syscdrom.c @ 3936:c5c3c772f5aa SDL-1.2
Let app set SDL_VIDEO_ALLOW_SCREENSAVER environment variable to override SDL's
attempt to disable screen savers. Works for Quartz (Mac OS X) and X11.
Need a formal API for this in 1.3, still.
Fixes Bugzilla #415.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Fri, 06 Apr 2007 20:30:41 +0000 |
| parents | 92947e3a18db |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
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24 #ifdef SDL_CDROM_MACOS |
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25 |
| 0 | 26 /* MacOS functions for system-level CD-ROM audio control */ |
| 27 | |
| 28 #include <Devices.h> | |
| 29 #include <Files.h> | |
| 30 #include <LowMem.h> /* Use entry table macros, not functions in InterfaceLib */ | |
| 31 | |
| 32 #include "SDL_cdrom.h" | |
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33 #include "../SDL_syscdrom.h" |
| 0 | 34 #include "SDL_syscdrom_c.h" |
| 35 | |
| 36 /* Added by Matt Slot */ | |
| 37 #if !defined(LMGetUnitTableEntryCount) | |
| 38 #define LMGetUnitTableEntryCount() *(short *)0x01D2 | |
| 39 #endif | |
| 40 | |
| 41 /* The maximum number of CD-ROM drives we'll detect */ | |
| 42 #define MAX_DRIVES 26 | |
| 43 | |
| 44 /* A list of available CD-ROM drives */ | |
| 45 static long SDL_cdversion = 0; | |
| 46 static struct { | |
| 47 short dRefNum; | |
| 48 short driveNum; | |
| 49 long frames; | |
| 50 char name[256]; | |
| 51 Boolean hasAudio; | |
| 52 } SDL_cdlist[MAX_DRIVES]; | |
| 53 static StringPtr gDriverName = "\p.AppleCD"; | |
| 54 | |
| 55 /* The system-dependent CD control functions */ | |
| 56 static const char *SDL_SYS_CDName(int drive); | |
| 57 static int SDL_SYS_CDOpen(int drive); | |
| 58 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); | |
| 59 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); | |
| 60 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); | |
| 61 static int SDL_SYS_CDPause(SDL_CD *cdrom); | |
| 62 static int SDL_SYS_CDResume(SDL_CD *cdrom); | |
| 63 static int SDL_SYS_CDStop(SDL_CD *cdrom); | |
| 64 static int SDL_SYS_CDEject(SDL_CD *cdrom); | |
| 65 static void SDL_SYS_CDClose(SDL_CD *cdrom); | |
| 66 | |
| 67 static short SDL_SYS_ShortToBCD(short value) | |
| 68 { | |
| 69 return((value % 10) + (value / 10) * 0x10); /* Convert value to BCD */ | |
| 70 } | |
| 71 | |
| 72 static short SDL_SYS_BCDToShort(short value) | |
| 73 { | |
| 74 return((value % 0x10) + (value / 0x10) * 10); /* Convert value from BCD */ | |
| 75 } | |
| 76 | |
| 77 int SDL_SYS_CDInit(void) | |
| 78 { | |
| 79 SInt16 dRefNum = 0; | |
| 80 SInt16 first, last; | |
| 81 | |
| 82 SDL_numcds = 0; | |
| 83 | |
| 84 /* Check that the software is available */ | |
| 85 if (Gestalt(kGestaltAudioCDSelector, &SDL_cdversion) || | |
| 86 !SDL_cdversion) return(0); | |
| 87 | |
| 88 /* Fill in our driver capabilities */ | |
| 89 SDL_CDcaps.Name = SDL_SYS_CDName; | |
| 90 SDL_CDcaps.Open = SDL_SYS_CDOpen; | |
| 91 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; | |
| 92 SDL_CDcaps.Status = SDL_SYS_CDStatus; | |
| 93 SDL_CDcaps.Play = SDL_SYS_CDPlay; | |
| 94 SDL_CDcaps.Pause = SDL_SYS_CDPause; | |
| 95 SDL_CDcaps.Resume = SDL_SYS_CDResume; | |
| 96 SDL_CDcaps.Stop = SDL_SYS_CDStop; | |
| 97 SDL_CDcaps.Eject = SDL_SYS_CDEject; | |
| 98 SDL_CDcaps.Close = SDL_SYS_CDClose; | |
| 99 | |
| 100 /* Walk the list, count each AudioCD driver, and save the refnums */ | |
| 101 first = -1; | |
| 102 last = 0 - LMGetUnitTableEntryCount(); | |
| 103 for(dRefNum = first; dRefNum >= last; dRefNum--) { | |
| 104 Str255 driverName; | |
| 105 StringPtr namePtr; | |
| 106 DCtlHandle deviceEntry; | |
| 107 | |
| 108 deviceEntry = GetDCtlEntry(dRefNum); | |
| 109 if (! deviceEntry) continue; | |
| 110 | |
| 111 /* Is this an .AppleCD ? */ | |
| 112 namePtr = (*deviceEntry)->dCtlFlags & (1L << dRAMBased) ? | |
| 113 ((StringPtr) ((DCtlPtr) deviceEntry)->dCtlDriver + 18) : | |
| 114 ((StringPtr) (*deviceEntry)->dCtlDriver + 18); | |
| 115 BlockMoveData(namePtr, driverName, namePtr[0]+1); | |
| 116 if (driverName[0] > gDriverName[0]) driverName[0] = gDriverName[0]; | |
| 117 if (! EqualString(driverName, gDriverName, false, false)) continue; | |
| 118 | |
| 119 /* Record the basic info for each drive */ | |
| 120 SDL_cdlist[SDL_numcds].dRefNum = dRefNum; | |
| 121 BlockMoveData(namePtr + 1, SDL_cdlist[SDL_numcds].name, namePtr[0]); | |
| 122 SDL_cdlist[SDL_numcds].name[namePtr[0]] = 0; | |
| 123 SDL_cdlist[SDL_numcds].hasAudio = false; | |
| 124 SDL_numcds++; | |
| 125 } | |
| 126 return(0); | |
| 127 } | |
| 128 | |
| 129 static const char *SDL_SYS_CDName(int drive) | |
| 130 { | |
| 131 return(SDL_cdlist[drive].name); | |
| 132 } | |
| 133 | |
| 134 static int get_drivenum(int drive) | |
| 135 { | |
| 136 QHdr *driveQ = GetDrvQHdr(); | |
| 137 DrvQEl *driveElem; | |
| 138 | |
| 139 /* Update the drive number */ | |
| 140 SDL_cdlist[drive].driveNum = 0; | |
| 141 if ( driveQ->qTail ) { | |
| 142 driveQ->qTail->qLink = 0; | |
| 143 } | |
| 144 for ( driveElem=(DrvQEl *)driveQ->qHead; driveElem; | |
| 145 driveElem = (DrvQEl *)driveElem->qLink ) { | |
| 146 if ( driveElem->dQRefNum == SDL_cdlist[drive].dRefNum ) { | |
| 147 SDL_cdlist[drive].driveNum = driveElem->dQDrive; | |
| 148 break; | |
| 149 } | |
| 150 } | |
| 151 return(SDL_cdlist[drive].driveNum); | |
| 152 } | |
| 153 | |
| 154 static int SDL_SYS_CDOpen(int drive) | |
| 155 { | |
| 156 return(drive); | |
| 157 } | |
| 158 | |
| 159 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) | |
| 160 { | |
| 161 CDCntrlParam cdpb; | |
| 162 CDTrackData tracks[SDL_MAX_TRACKS]; | |
| 163 long i, leadout; | |
| 164 | |
| 165 /* Get the number of tracks on the CD by examining the TOC */ | |
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166 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 167 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 168 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 169 cdpb.csCode = kReadTOC; | |
| 170 cdpb.csParam.words[0] = kGetTrackRange; | |
| 171 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 172 SDL_SetError("PBControlSync() failed"); | |
| 173 return(-1); | |
| 174 } | |
| 175 | |
| 176 cdrom->numtracks = | |
| 177 SDL_SYS_BCDToShort(cdpb.csParam.bytes[1]) - | |
| 178 SDL_SYS_BCDToShort(cdpb.csParam.bytes[0]) + 1; | |
| 179 if ( cdrom->numtracks > SDL_MAX_TRACKS ) | |
| 180 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 181 cdrom->status = CD_STOPPED; | |
| 182 cdrom->cur_track = 0; /* Apparently these are set elsewhere */ | |
| 183 cdrom->cur_frame = 0; /* Apparently these are set elsewhere */ | |
| 184 | |
| 185 | |
| 186 /* Get the lead out area of the CD by examining the TOC */ | |
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187 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 188 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 189 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 190 cdpb.csCode = kReadTOC; | |
| 191 cdpb.csParam.words[0] = kGetLeadOutArea; | |
| 192 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 193 SDL_SetError("PBControlSync() failed"); | |
| 194 return(-1); | |
| 195 } | |
| 196 | |
| 197 leadout = MSF_TO_FRAMES( | |
| 198 SDL_SYS_BCDToShort(cdpb.csParam.bytes[0]), | |
| 199 SDL_SYS_BCDToShort(cdpb.csParam.bytes[1]), | |
| 200 SDL_SYS_BCDToShort(cdpb.csParam.bytes[2])); | |
| 201 | |
| 202 /* Get an array of track locations by examining the TOC */ | |
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203 SDL_memset(tracks, 0, sizeof(tracks)); |
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204 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 205 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 206 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 207 cdpb.csCode = kReadTOC; | |
| 208 cdpb.csParam.words[0] = kGetTrackEntries; /* Type of Query */ | |
| 209 * ((long *) (cdpb.csParam.words+1)) = (long) tracks; | |
| 210 cdpb.csParam.words[3] = cdrom->numtracks * sizeof(tracks[0]); | |
| 211 * ((char *) (cdpb.csParam.words+4)) = 1; /* First track */ | |
| 212 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 213 SDL_SetError("PBControlSync() failed"); | |
| 214 return(-1); | |
| 215 } | |
| 216 | |
| 217 /* Read all the track TOC entries */ | |
| 218 SDL_cdlist[cdrom->id].hasAudio = false; | |
| 219 for ( i=0; i<cdrom->numtracks; ++i ) | |
| 220 { | |
| 221 cdrom->track[i].id = i+1; | |
| 222 if (tracks[i].entry.control & kDataTrackMask) | |
| 223 cdrom->track[i].type = SDL_DATA_TRACK; | |
| 224 else | |
| 225 { | |
| 226 cdrom->track[i].type = SDL_AUDIO_TRACK; | |
| 227 SDL_cdlist[SDL_numcds].hasAudio = true; | |
| 228 } | |
| 229 | |
| 230 cdrom->track[i].offset = MSF_TO_FRAMES( | |
| 231 SDL_SYS_BCDToShort(tracks[i].entry.min), | |
| 232 SDL_SYS_BCDToShort(tracks[i].entry.min), | |
| 233 SDL_SYS_BCDToShort(tracks[i].entry.frame)); | |
| 234 cdrom->track[i].length = MSF_TO_FRAMES( | |
| 235 SDL_SYS_BCDToShort(tracks[i+1].entry.min), | |
| 236 SDL_SYS_BCDToShort(tracks[i+1].entry.min), | |
| 237 SDL_SYS_BCDToShort(tracks[i+1].entry.frame)) - | |
| 238 cdrom->track[i].offset; | |
| 239 } | |
| 240 | |
| 241 /* Apparently SDL wants a fake last entry */ | |
| 242 cdrom->track[i].offset = leadout; | |
| 243 cdrom->track[i].length = 0; | |
| 244 | |
| 245 return(0); | |
| 246 } | |
| 247 | |
| 248 /* Get CD-ROM status */ | |
| 249 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) | |
| 250 { | |
| 251 CDCntrlParam cdpb; | |
| 252 CDstatus status = CD_ERROR; | |
| 253 Boolean spinning = false; | |
| 254 | |
| 255 if (position) *position = 0; | |
| 256 | |
| 257 /* Get the number of tracks on the CD by examining the TOC */ | |
| 258 if ( ! get_drivenum(cdrom->id) ) { | |
| 259 return(CD_TRAYEMPTY); | |
| 260 } | |
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261 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 262 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 263 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 264 cdpb.csCode = kReadTOC; | |
| 265 cdpb.csParam.words[0] = kGetTrackRange; | |
| 266 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 267 SDL_SetError("PBControlSync() failed"); | |
| 268 return(CD_ERROR); | |
| 269 } | |
| 270 | |
| 271 cdrom->numtracks = | |
| 272 SDL_SYS_BCDToShort(cdpb.csParam.bytes[1]) - | |
| 273 SDL_SYS_BCDToShort(cdpb.csParam.bytes[0]) + 1; | |
| 274 if ( cdrom->numtracks > SDL_MAX_TRACKS ) | |
| 275 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 276 cdrom->cur_track = 0; /* Apparently these are set elsewhere */ | |
| 277 cdrom->cur_frame = 0; /* Apparently these are set elsewhere */ | |
| 278 | |
| 279 | |
| 280 if (1 || SDL_cdlist[cdrom->id].hasAudio) { | |
| 281 /* Get the current playback status */ | |
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282 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 283 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 284 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 285 cdpb.csCode = kAudioStatus; | |
| 286 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 287 SDL_SetError("PBControlSync() failed"); | |
| 288 return(-1); | |
| 289 } | |
| 290 | |
| 291 switch(cdpb.csParam.cd.status) { | |
| 292 case kStatusPlaying: | |
| 293 status = CD_PLAYING; | |
| 294 spinning = true; | |
| 295 break; | |
| 296 case kStatusPaused: | |
| 297 status = CD_PAUSED; | |
| 298 spinning = true; | |
| 299 break; | |
| 300 case kStatusMuted: | |
| 301 status = CD_PLAYING; /* What should I do here? */ | |
| 302 spinning = true; | |
| 303 break; | |
| 304 case kStatusDone: | |
| 305 status = CD_STOPPED; | |
| 306 spinning = true; | |
| 307 break; | |
| 308 case kStatusStopped: | |
| 309 status = CD_STOPPED; | |
| 310 spinning = false; | |
| 311 break; | |
| 312 case kStatusError: | |
| 313 default: | |
| 314 status = CD_ERROR; | |
| 315 spinning = false; | |
| 316 break; | |
| 317 } | |
| 318 | |
| 319 if (spinning && position) *position = MSF_TO_FRAMES( | |
| 320 SDL_SYS_BCDToShort(cdpb.csParam.cd.minute), | |
| 321 SDL_SYS_BCDToShort(cdpb.csParam.cd.second), | |
| 322 SDL_SYS_BCDToShort(cdpb.csParam.cd.frame)); | |
| 323 } | |
| 324 else | |
| 325 status = CD_ERROR; /* What should I do here? */ | |
| 326 | |
| 327 return(status); | |
| 328 } | |
| 329 | |
| 330 /* Start play */ | |
| 331 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | |
| 332 { | |
| 333 CDCntrlParam cdpb; | |
| 334 | |
| 335 /* Pause the current audio playback to avoid audible artifacts */ | |
| 336 if ( SDL_SYS_CDPause(cdrom) < 0 ) { | |
| 337 return(-1); | |
| 338 } | |
| 339 | |
| 340 /* Specify the AudioCD playback mode */ | |
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341 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 342 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 343 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 344 cdpb.csCode = kSetPlayMode; | |
| 345 cdpb.csParam.bytes[0] = false; /* Repeat? */ | |
| 346 cdpb.csParam.bytes[1] = kPlayModeSequential; /* Play mode */ | |
| 347 /* ¥¥¥ÊTreat as soft error, NEC Drive doesnt support this call ¥¥¥ */ | |
| 348 PBControlSync((ParmBlkPtr) &cdpb); | |
| 349 | |
| 350 #if 1 | |
| 351 /* Specify the end of audio playback */ | |
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352 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 353 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 354 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 355 cdpb.csCode = kAudioStop; | |
| 356 cdpb.csParam.words[0] = kBlockPosition; /* Position Mode */ | |
| 357 *(long *) (cdpb.csParam.words + 1) = start+length-1; /* Search Address */ | |
| 358 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 359 SDL_SetError("PBControlSync() failed"); | |
| 360 return(-1); | |
| 361 } | |
| 362 | |
| 363 /* Specify the start of audio playback, and start it */ | |
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364 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 365 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 366 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 367 cdpb.csCode = kAudioPlay; | |
| 368 cdpb.csParam.words[0] = kBlockPosition; /* Position Mode */ | |
| 369 *(long *) (cdpb.csParam.words + 1) = start+1; /* Search Address */ | |
| 370 cdpb.csParam.words[3] = false; /* Stop address? */ | |
| 371 cdpb.csParam.words[4] = kStereoPlayMode; /* Audio Play Mode */ | |
| 372 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 373 SDL_SetError("PBControlSync() failed"); | |
| 374 return(-1); | |
| 375 } | |
| 376 #else | |
| 377 /* Specify the end of audio playback */ | |
| 378 FRAMES_TO_MSF(start+length, &m, &s, &f); | |
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379 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 380 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 381 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 382 cdpb.csCode = kAudioStop; | |
| 383 cdpb.csParam.words[0] = kTrackPosition; /* Position Mode */ | |
| 384 cdpb.csParam.words[1] = 0; /* Search Address (hiword)*/ | |
| 385 cdpb.csParam.words[2] = /* Search Address (loword)*/ | |
| 386 SDL_SYS_ShortToBCD(cdrom->numtracks); | |
| 387 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 388 SDL_SetError("PBControlSync() failed"); | |
| 389 return(-1); | |
| 390 } | |
| 391 | |
| 392 /* Specify the start of audio playback, and start it */ | |
| 393 FRAMES_TO_MSF(start, &m, &s, &f); | |
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394 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 395 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 396 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 397 cdpb.csCode = kAudioPlay; | |
| 398 cdpb.csParam.words[0] = kTrackPosition; /* Position Mode */ | |
| 399 cdpb.csParam.words[1] = 0; /* Search Address (hiword)*/ | |
| 400 cdpb.csParam.words[2] = SDL_SYS_ShortToBCD(1); /* Search Address (loword)*/ | |
| 401 cdpb.csParam.words[3] = false; /* Stop address? */ | |
| 402 cdpb.csParam.words[4] = kStereoPlayMode; /* Audio Play Mode */ | |
| 403 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 404 SDL_SetError("PBControlSync() failed"); | |
| 405 return(-1); | |
| 406 } | |
| 407 #endif | |
| 408 | |
| 409 return(0); | |
| 410 } | |
| 411 | |
| 412 /* Pause play */ | |
| 413 static int SDL_SYS_CDPause(SDL_CD *cdrom) | |
| 414 { | |
| 415 CDCntrlParam cdpb; | |
| 416 | |
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417 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 418 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 419 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 420 cdpb.csCode = kAudioPause; | |
| 421 cdpb.csParam.words[0] = 0; /* Pause/Continue Flag (hiword) */ | |
| 422 cdpb.csParam.words[1] = 1; /* Pause/Continue Flag (loword) */ | |
| 423 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 424 SDL_SetError("PBControlSync() failed"); | |
| 425 return(-1); | |
| 426 } | |
| 427 return(0); | |
| 428 } | |
| 429 | |
| 430 /* Resume play */ | |
| 431 static int SDL_SYS_CDResume(SDL_CD *cdrom) | |
| 432 { | |
| 433 CDCntrlParam cdpb; | |
| 434 | |
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435 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 436 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 437 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 438 cdpb.csCode = kAudioPause; | |
| 439 cdpb.csParam.words[0] = 0; /* Pause/Continue Flag (hiword) */ | |
| 440 cdpb.csParam.words[1] = 0; /* Pause/Continue Flag (loword) */ | |
| 441 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 442 SDL_SetError("PBControlSync() failed"); | |
| 443 return(-1); | |
| 444 } | |
| 445 return(0); | |
| 446 } | |
| 447 | |
| 448 /* Stop play */ | |
| 449 static int SDL_SYS_CDStop(SDL_CD *cdrom) | |
| 450 { | |
| 451 CDCntrlParam cdpb; | |
| 452 | |
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453 SDL_memset(&cdpb, 0, sizeof(cdpb)); |
| 0 | 454 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum; |
| 455 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 456 cdpb.csCode = kAudioStop; | |
| 457 cdpb.csParam.words[0] = 0; /* Position Mode */ | |
| 458 cdpb.csParam.words[1] = 0; /* Search Address (hiword) */ | |
| 459 cdpb.csParam.words[2] = 0; /* Search Address (loword) */ | |
| 460 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) { | |
| 461 SDL_SetError("PBControlSync() failed"); | |
| 462 return(-1); | |
| 463 } | |
| 464 return(0); | |
| 465 } | |
| 466 | |
| 467 /* Eject the CD-ROM */ | |
| 468 static int SDL_SYS_CDEject(SDL_CD *cdrom) | |
| 469 { | |
| 470 Boolean disk = false; | |
| 471 QHdr *driveQ = GetDrvQHdr(); | |
| 472 DrvQEl *driveElem; | |
| 473 HParamBlockRec hpb; | |
| 474 ParamBlockRec cpb; | |
| 475 | |
| 476 for ( driveElem = (DrvQEl *) driveQ->qHead; driveElem; driveElem = | |
| 477 (driveElem) ? ((DrvQEl *) driveElem->qLink) : | |
| 478 ((DrvQEl *) driveQ->qHead) ) { | |
| 479 if ( driveQ->qTail ) { | |
| 480 driveQ->qTail->qLink = 0; | |
| 481 } | |
| 482 if ( driveElem->dQRefNum != SDL_cdlist[cdrom->id].dRefNum ) { | |
| 483 continue; | |
| 484 } | |
| 485 | |
| 486 /* Does drive contain mounted volume? If not, skip */ | |
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487 SDL_memset(&hpb, 0, sizeof(hpb)); |
| 0 | 488 hpb.volumeParam.ioVRefNum = driveElem->dQDrive; |
| 489 if ( PBHGetVInfoSync(&hpb) != noErr ) { | |
| 490 continue; | |
| 491 } | |
| 492 if ( (UnmountVol(0, driveElem->dQDrive) == noErr) && | |
| 493 (Eject(0, driveElem->dQDrive) == noErr) ) { | |
| 494 driveElem = 0; /* Clear pointer to reset our loop */ | |
| 495 disk = true; | |
| 496 } | |
| 497 } | |
| 498 | |
| 499 /* If no disk is present, just eject the tray */ | |
| 500 if (! disk) { | |
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501 SDL_memset(&cpb, 0, sizeof(cpb)); |
| 0 | 502 cpb.cntrlParam.ioVRefNum = 0; /* No Drive */ |
| 503 cpb.cntrlParam.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum; | |
| 504 cpb.cntrlParam.csCode = kEjectTheDisc; | |
| 505 if ( PBControlSync((ParmBlkPtr)&cpb) != noErr ) { | |
| 506 SDL_SetError("PBControlSync() failed"); | |
| 507 return(-1); | |
| 508 } | |
| 509 } | |
| 510 return(0); | |
| 511 } | |
| 512 | |
| 513 /* Close the CD-ROM handle */ | |
| 514 static void SDL_SYS_CDClose(SDL_CD *cdrom) | |
| 515 { | |
| 516 return; | |
| 517 } | |
| 518 | |
| 519 void SDL_SYS_CDQuit(void) | |
| 520 { | |
| 521 while(SDL_numcds--) | |
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522 SDL_memset(SDL_cdlist + SDL_numcds, 0, sizeof(SDL_cdlist[0])); |
| 0 | 523 } |
| 524 | |
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525 #endif /* SDL_CDROM_MACOS */ |