cd_shared.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // Quake is a trademark of Id Software, Inc., (c) 1996 Id Software, Inc. All
  21 // rights reserved.
  22
  23 #include "quakedef.h"
  24 #include "cdaudio.h"
  25 #include "sound.h"
  26
  27 // Prototypes of the system dependent functions
  28 extern void CDAudio_SysEject (void);
  29 extern void CDAudio_SysCloseDoor (void);
  30 extern int CDAudio_SysGetAudioDiskInfo (void);
  31 extern float CDAudio_SysGetVolume (void);
  32 extern void CDAudio_SysSetVolume (float volume);
  33 extern int CDAudio_SysPlay (int track);
  34 extern int CDAudio_SysStop (void);
  35 extern int CDAudio_SysPause (void);
  36 extern int CDAudio_SysResume (void);
  37 extern int CDAudio_SysUpdate (void);
  38 extern void CDAudio_SysInit (void);
  39 extern int CDAudio_SysStartup (void);
  40 extern void CDAudio_SysShutdown (void);
  41
  42 // used by menu to ghost CD audio slider
  43 cvar_t cdaudioinitialized = {CVAR_READONLY,"cdaudioinitialized","0","indicates if CD Audio system is active"};
  44 cvar_t cdaudio = {CVAR_SAVE,"cdaudio","1","CD playing mode (0 = never access CD drive, 1 = play CD tracks if no replacement available, 2 = play fake tracks if no CD track available, 3 = play only real CD tracks, 4 = play real CD tracks even instead of named fake tracks)"};
  45
  46 #define MAX_PLAYLISTS 10
  47 int music_playlist_active = -1;
  48 int music_playlist_playing = 0; // 0 = not playing, 1 = playing, -1 = tried and failed
  49
  50 cvar_t music_playlist_index = {0, "music_playlist_index", "-1", "selects which of the music_playlist_ variables is the active one, -1 disables playlists"};
  51 cvar_t music_playlist_list[MAX_PLAYLISTS] =
  52 {
  53         {0, "music_playlist_list0", "", "list of tracks to play"},
  54         {0, "music_playlist_list1", "", "list of tracks to play"},
  55         {0, "music_playlist_list2", "", "list of tracks to play"},
  56         {0, "music_playlist_list3", "", "list of tracks to play"},
  57         {0, "music_playlist_list4", "", "list of tracks to play"},
  58         {0, "music_playlist_list5", "", "list of tracks to play"},
  59         {0, "music_playlist_list6", "", "list of tracks to play"},
  60         {0, "music_playlist_list7", "", "list of tracks to play"},
  61         {0, "music_playlist_list8", "", "list of tracks to play"},
  62         {0, "music_playlist_list9", "", "list of tracks to play"}
  63 };
  64 cvar_t music_playlist_current[MAX_PLAYLISTS] =
  65 {
  66         {0, "music_playlist_current0", "0", "current track index to play in list"},
  67         {0, "music_playlist_current1", "0", "current track index to play in list"},
  68         {0, "music_playlist_current2", "0", "current track index to play in list"},
  69         {0, "music_playlist_current3", "0", "current track index to play in list"},
  70         {0, "music_playlist_current4", "0", "current track index to play in list"},
  71         {0, "music_playlist_current5", "0", "current track index to play in list"},
  72         {0, "music_playlist_current6", "0", "current track index to play in list"},
  73         {0, "music_playlist_current7", "0", "current track index to play in list"},
  74         {0, "music_playlist_current8", "0", "current track index to play in list"},
  75         {0, "music_playlist_current9", "0", "current track index to play in list"},
  76 };
  77 cvar_t music_playlist_random[MAX_PLAYLISTS] =
  78 {
  79         {0, "music_playlist_random0", "0", "enables random play order if 1, 0 is sequential play"},
  80         {0, "music_playlist_random1", "0", "enables random play order if 1, 0 is sequential play"},
  81         {0, "music_playlist_random2", "0", "enables random play order if 1, 0 is sequential play"},
  82         {0, "music_playlist_random3", "0", "enables random play order if 1, 0 is sequential play"},
  83         {0, "music_playlist_random4", "0", "enables random play order if 1, 0 is sequential play"},
  84         {0, "music_playlist_random5", "0", "enables random play order if 1, 0 is sequential play"},
  85         {0, "music_playlist_random6", "0", "enables random play order if 1, 0 is sequential play"},
  86         {0, "music_playlist_random7", "0", "enables random play order if 1, 0 is sequential play"},
  87         {0, "music_playlist_random8", "0", "enables random play order if 1, 0 is sequential play"},
  88         {0, "music_playlist_random9", "0", "enables random play order if 1, 0 is sequential play"},
  89 };
  90 cvar_t music_playlist_sampleposition[MAX_PLAYLISTS] =
  91 {
  92         {0, "music_playlist_sampleposition0", "-1", "resume position for track, -1 restarts every time"},
  93         {0, "music_playlist_sampleposition1", "-1", "resume position for track, -1 restarts every time"},
  94         {0, "music_playlist_sampleposition2", "-1", "resume position for track, -1 restarts every time"},
  95         {0, "music_playlist_sampleposition3", "-1", "resume position for track, -1 restarts every time"},
  96         {0, "music_playlist_sampleposition4", "-1", "resume position for track, -1 restarts every time"},
  97         {0, "music_playlist_sampleposition5", "-1", "resume position for track, -1 restarts every time"},
  98         {0, "music_playlist_sampleposition6", "-1", "resume position for track, -1 restarts every time"},
  99         {0, "music_playlist_sampleposition7", "-1", "resume position for track, -1 restarts every time"},
 100         {0, "music_playlist_sampleposition8", "-1", "resume position for track, -1 restarts every time"},
 101         {0, "music_playlist_sampleposition9", "-1", "resume position for track, -1 restarts every time"},
 102 };
 103
 104 static qboolean wasPlaying = false;
 105 static qboolean initialized = false;
 106 static qboolean enabled = false;
 107 static float cdvolume;
 108 typedef char filename_t[MAX_QPATH];
 109 #ifdef MAXTRACKS
 110 static filename_t remap[MAXTRACKS];
 111 #endif
 112 static unsigned char maxTrack;
 113 static int faketrack = -1;
 114
 115 static float saved_vol = 1.0f;
 116
 117 // exported variables
 118 qboolean cdValid = false;
 119 qboolean cdPlaying = false;
 120 qboolean cdPlayLooping = false;
 121 unsigned char cdPlayTrack;
 122
 123 cl_cdstate_t cd;
 124
 125 static void CDAudio_Eject (void)
 126 {
 127         if (!enabled)
 128                 return;
 129
 130         if(cdaudio.integer == 0)
 131                 return;
 132
 133         CDAudio_SysEject();
 134 }
 135
 136
 137 static void CDAudio_CloseDoor (void)
 138 {
 139         if (!enabled)
 140                 return;
 141
 142         if(cdaudio.integer == 0)
 143                 return;
 144
 145         CDAudio_SysCloseDoor();
 146 }
 147
 148 static int CDAudio_GetAudioDiskInfo (void)
 149 {
 150         int ret;
 151
 152         cdValid = false;
 153
 154         if(cdaudio.integer == 0)
 155                 return -1;
 156
 157         ret = CDAudio_SysGetAudioDiskInfo();
 158         if (ret < 1)
 159                 return -1;
 160
 161         cdValid = true;
 162         maxTrack = ret;
 163
 164         return 0;
 165 }
 166
 167 qboolean CDAudio_Play_real (int track, qboolean looping, qboolean complain)
 168 {
 169         if(track < 1)
 170         {
 171                 if(complain)
 172                         Con_Print("Could not load BGM track.\n");
 173                 return false;
 174         }
 175
 176         if (!cdValid)
 177         {
 178                 CDAudio_GetAudioDiskInfo();
 179                 if (!cdValid)
 180                 {
 181                         if(complain)
 182                                 Con_DPrint ("No CD in player.\n");
 183                         return false;
 184                 }
 185         }
 186
 187         if (track > maxTrack)
 188         {
 189                 if(complain)
 190                         Con_DPrintf("CDAudio: Bad track number %u.\n", track);
 191                 return false;
 192         }
 193
 194         if (CDAudio_SysPlay(track) == -1)
 195                 return false;
 196
 197         if(cdaudio.integer != 3)
 198                 Con_DPrintf ("CD track %u playing...\n", track);
 199
 200         return true;
 201 }
 202
 203 void CDAudio_Play_byName (const char *trackname, qboolean looping, qboolean tryreal, float startposition)
 204 {
 205         unsigned int track;
 206         sfx_t* sfx;
 207         char filename[MAX_QPATH];
 208
 209         Host_StartVideo();
 210
 211         if (!enabled)
 212                 return;
 213
 214         if(tryreal && strspn(trackname, "0123456789") == strlen(trackname))
 215         {
 216                 track = (unsigned char) atoi(trackname);
 217 #ifdef MAXTRACKS
 218                 if(track > 0 && track < MAXTRACKS)
 219                         if(*remap[track])
 220                         {
 221                                 if(strspn(remap[track], "0123456789") == strlen(remap[track]))
 222                                 {
 223                                         trackname = remap[track];
 224                                 }
 225                                 else
 226                                 {
 227                                         // ignore remappings to fake tracks if we're going to play a real track
 228                                         switch(cdaudio.integer)
 229                                         {
 230                                                 case 0: // we never access CD
 231                                                 case 1: // we have a replacement
 232                                                         trackname = remap[track];
 233                                                         break;
 234                                                 case 2: // we only use fake track replacement if CD track is invalid
 235                                                         CDAudio_GetAudioDiskInfo();
 236                                                         if(!cdValid || track > maxTrack)
 237                                                                 trackname = remap[track];
 238                                                         break;
 239                                                 case 3: // we always play from CD - ignore this remapping then
 240                                                 case 4: // we randomize anyway
 241                                                         break;
 242                                         }
 243                                 }
 244                         }
 245 #endif
 246         }
 247
 248         if(tryreal && strspn(trackname, "0123456789") == strlen(trackname))
 249         {
 250                 track = (unsigned char) atoi(trackname);
 251                 if (track < 1)
 252                 {
 253                         Con_DPrintf("CDAudio: Bad track number %u.\n", track);
 254                         return;
 255                 }
 256         }
 257         else
 258                 track = 0;
 259
 260         // div0: I assume this code was intentionally there. Maybe turn it into a cvar?
 261         if (cdPlaying && cdPlayTrack == track && faketrack == -1)
 262                 return;
 263         CDAudio_Stop ();
 264
 265         if(track >= 1)
 266         {
 267                 if(cdaudio.integer == 3) // only play real CD tracks at all
 268                 {
 269                         if(CDAudio_Play_real(track, looping, true))
 270                                 goto success;
 271                         return;
 272                 }
 273
 274                 if(cdaudio.integer == 2) // prefer real CD track over fake
 275                 {
 276                         if(CDAudio_Play_real(track, looping, false))
 277                                 goto success;
 278                 }
 279         }
 280
 281         if(cdaudio.integer == 4) // only play real CD tracks, EVEN instead of fake tracks!
 282         {
 283                 if(CDAudio_Play_real(track, looping, false))
 284                         goto success;
 285
 286                 if(cdValid && maxTrack > 0)
 287                 {
 288                         track = 1 + (rand() % maxTrack);
 289                         if(CDAudio_Play_real(track, looping, true))
 290                                 goto success;
 291                 }
 292                 else
 293                 {
 294                         Con_DPrint ("No CD in player.\n");
 295                 }
 296                 return;
 297         }
 298
 299         // Try playing a fake track (sound file) first
 300         if(track >= 1)
 301         {
 302                                               dpsnprintf(filename, sizeof(filename), "sound/cdtracks/track%03u.wav", track);
 303                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "sound/cdtracks/track%03u.ogg", track);
 304                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "sound/cdtracks/track%02u.wav", track);
 305                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "sound/cdtracks/track%02u.ogg", track);
 306         }
 307         else
 308         {
 309                                               dpsnprintf(filename, sizeof(filename), "%s", trackname);
 310                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "%s.wav", trackname);
 311                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "%s.ogg", trackname);
 312                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "sound/%s", trackname);
 313                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "sound/%s.wav", trackname);
 314                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "sound/%s.ogg", trackname);
 315                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "sound/cdtracks/%s", trackname);
 316                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "sound/cdtracks/%s.wav", trackname);
 317                 if (!FS_FileExists(filename)) dpsnprintf(filename, sizeof(filename), "sound/cdtracks/%s.ogg", trackname);
 318         }
 319         if (FS_FileExists(filename) && (sfx = S_PrecacheSound (filename, false, true)))
 320         {
 321                 faketrack = S_StartSound_StartPosition (-1, 0, sfx, vec3_origin, cdvolume, 0, startposition);
 322                 if (faketrack != -1)
 323                 {
 324                         if (looping)
 325                                 S_SetChannelFlag (faketrack, CHANNELFLAG_FORCELOOP, true);
 326                         S_SetChannelFlag (faketrack, CHANNELFLAG_FULLVOLUME, true);
 327                         S_SetChannelFlag (faketrack, CHANNELFLAG_LOCALSOUND, true); // not pausable
 328                         if(track >= 1)
 329                         {
 330                                 if(cdaudio.integer != 0) // we don't need these messages if only fake tracks can be played anyway
 331                                         Con_DPrintf ("Fake CD track %u playing...\n", track);
 332                         }
 333                         else
 334                                 Con_DPrintf ("BGM track %s playing...\n", trackname);
 335                 }
 336         }
 337
 338         // If we can't play a fake CD track, try the real one
 339         if (faketrack == -1)
 340         {
 341                 if(cdaudio.integer == 0 || track < 1)
 342                 {
 343                         Con_Print("Could not load BGM track.\n");
 344                         return;
 345                 }
 346                 else
 347                 {
 348                         if(!CDAudio_Play_real(track, looping, true))
 349                                 return;
 350                 }
 351         }
 352
 353 success:
 354         cdPlayLooping = looping;
 355         cdPlayTrack = track;
 356         cdPlaying = true;
 357
 358         if (cdvolume == 0.0 || bgmvolume.value == 0)
 359                 CDAudio_Pause ();
 360 }
 361
 362 void CDAudio_Play (int track, qboolean looping)
 363 {
 364         char buf[20];
 365         if (music_playlist_index.integer >= 0)
 366                 return;
 367         dpsnprintf(buf, sizeof(buf), "%d", (int) track);
 368         CDAudio_Play_byName(buf, looping, true, 0);
 369 }
 370
 371 float CDAudio_GetPosition (void)
 372 {
 373         if(faketrack != -1)
 374                 return S_GetChannelPosition(faketrack);
 375         return -1;
 376 }
 377
 378 static void CDAudio_StopPlaylistTrack(void);
 379
 380 void CDAudio_Stop (void)
 381 {
 382         if (!enabled)
 383                 return;
 384
 385         // save the playlist position
 386         CDAudio_StopPlaylistTrack();
 387
 388         if (faketrack != -1)
 389         {
 390                 S_StopChannel (faketrack, true);
 391                 faketrack = -1;
 392         }
 393         else if (cdPlaying && (CDAudio_SysStop() == -1))
 394                 return;
 395         else if(wasPlaying)
 396         {
 397                 CDAudio_Resume(); // needed by SDL - can't stop while paused there (causing pause/stop to fail after play, pause, stop, play otherwise)
 398                 if (cdPlaying && (CDAudio_SysStop() == -1))
 399                         return;
 400         }
 401
 402         wasPlaying = false;
 403         cdPlaying = false;
 404 }
 405
 406 void CDAudio_Pause (void)
 407 {
 408         if (!enabled || !cdPlaying)
 409                 return;
 410
 411         if (faketrack != -1)
 412                 S_SetChannelFlag (faketrack, CHANNELFLAG_PAUSED, true);
 413         else if (CDAudio_SysPause() == -1)
 414                 return;
 415
 416         wasPlaying = cdPlaying;
 417         cdPlaying = false;
 418 }
 419
 420
 421 void CDAudio_Resume (void)
 422 {
 423         if (!enabled || cdPlaying || !wasPlaying)
 424                 return;
 425
 426         if (faketrack != -1)
 427                 S_SetChannelFlag (faketrack, CHANNELFLAG_PAUSED, false);
 428         else if (CDAudio_SysResume() == -1)
 429                 return;
 430         cdPlaying = true;
 431 }
 432
 433 static void CD_f (void)
 434 {
 435         const char *command;
 436 #ifdef MAXTRACKS
 437         int ret;
 438         int n;
 439 #endif
 440
 441         command = Cmd_Argv (1);
 442
 443         if (strcasecmp(command, "remap") != 0)
 444                 Host_StartVideo();
 445
 446         if (strcasecmp(command, "on") == 0)
 447         {
 448                 enabled = true;
 449                 return;
 450         }
 451
 452         if (strcasecmp(command, "off") == 0)
 453         {
 454                 CDAudio_Stop();
 455                 enabled = false;
 456                 return;
 457         }
 458
 459         if (strcasecmp(command, "reset") == 0)
 460         {
 461                 enabled = true;
 462                 CDAudio_Stop();
 463 #ifdef MAXTRACKS
 464                 for (n = 0; n < MAXTRACKS; n++)
 465                         *remap[n] = 0; // empty string, that is, unremapped
 466 #endif
 467                 CDAudio_GetAudioDiskInfo();
 468                 return;
 469         }
 470
 471         if (strcasecmp(command, "rescan") == 0)
 472         {
 473                 CDAudio_Shutdown();
 474                 CDAudio_Startup();
 475                 return;
 476         }
 477
 478         if (strcasecmp(command, "remap") == 0)
 479         {
 480 #ifdef MAXTRACKS
 481                 ret = Cmd_Argc() - 2;
 482                 if (ret <= 0)
 483                 {
 484                         for (n = 1; n < MAXTRACKS; n++)
 485                                 if (*remap[n])
 486                                         Con_Printf("  %u -> %s\n", n, remap[n]);
 487                         return;
 488                 }
 489                 for (n = 1; n <= ret; n++)
 490                         strlcpy(remap[n], Cmd_Argv (n+1), sizeof(*remap));
 491 #endif
 492                 return;
 493         }
 494
 495         if (strcasecmp(command, "close") == 0)
 496         {
 497                 CDAudio_CloseDoor();
 498                 return;
 499         }
 500
 501         if (strcasecmp(command, "play") == 0)
 502         {
 503                 if (music_playlist_index.integer >= 0)
 504                         return;
 505                 CDAudio_Play_byName(Cmd_Argv (2), false, true, 0);
 506                 return;
 507         }
 508
 509         if (strcasecmp(command, "loop") == 0)
 510         {
 511                 if (music_playlist_index.integer >= 0)
 512                         return;
 513                 CDAudio_Play_byName(Cmd_Argv (2), true, true, 0);
 514                 return;
 515         }
 516
 517         if (strcasecmp(command, "stop") == 0)
 518         {
 519                 if (music_playlist_index.integer >= 0)
 520                         return;
 521                 CDAudio_Stop();
 522                 return;
 523         }
 524
 525         if (strcasecmp(command, "pause") == 0)
 526         {
 527                 if (music_playlist_index.integer >= 0)
 528                         return;
 529                 CDAudio_Pause();
 530                 return;
 531         }
 532
 533         if (strcasecmp(command, "resume") == 0)
 534         {
 535                 if (music_playlist_index.integer >= 0)
 536                         return;
 537                 CDAudio_Resume();
 538                 return;
 539         }
 540
 541         if (strcasecmp(command, "eject") == 0)
 542         {
 543                 if (faketrack == -1)
 544                         CDAudio_Stop();
 545                 CDAudio_Eject();
 546                 cdValid = false;
 547                 return;
 548         }
 549
 550         if (strcasecmp(command, "info") == 0)
 551         {
 552                 CDAudio_GetAudioDiskInfo ();
 553                 if (cdValid)
 554                         Con_Printf("%u tracks on CD.\n", maxTrack);
 555                 else
 556                         Con_Print ("No CD in player.\n");
 557                 if (cdPlaying)
 558                         Con_Printf("Currently %s track %u\n", cdPlayLooping ? "looping" : "playing", cdPlayTrack);
 559                 else if (wasPlaying)
 560                         Con_Printf("Paused %s track %u\n", cdPlayLooping ? "looping" : "playing", cdPlayTrack);
 561                 if (cdvolume >= 0)
 562                         Con_Printf("Volume is %f\n", cdvolume);
 563                 else
 564                         Con_Printf("Can't get CD volume\n");
 565                 return;
 566         }
 567
 568         Con_Printf("CD commands:\n");
 569         Con_Printf("cd on - enables CD audio system\n");
 570         Con_Printf("cd off - stops and disables CD audio system\n");
 571         Con_Printf("cd reset - resets CD audio system (clears track remapping and re-reads disc information)\n");
 572         Con_Printf("cd rescan - rescans disks in drives (to use another disc)\n");
 573         Con_Printf("cd remap <remap1> [remap2] [remap3] [...] - chooses (possibly emulated) CD tracks to play when a map asks for a particular track, this has many uses\n");
 574         Con_Printf("cd close - closes CD tray\n");
 575         Con_Printf("cd eject - stops playing music and opens CD tray to allow you to change disc\n");
 576         Con_Printf("cd play <tracknumber> - plays selected track in remapping table\n");
 577         Con_Printf("cd loop <tracknumber> - plays and repeats selected track in remapping table\n");
 578         Con_Printf("cd stop - stops playing current CD track\n");
 579         Con_Printf("cd pause - pauses CD playback\n");
 580         Con_Printf("cd resume - unpauses CD playback\n");
 581         Con_Printf("cd info - prints basic disc information (number of tracks, currently playing track, volume level)\n");
 582 }
 583
 584 void CDAudio_SetVolume (float newvol)
 585 {
 586         // If the volume hasn't changed
 587         if (newvol == cdvolume)
 588                 return;
 589
 590         // If the CD has been muted
 591         if (newvol == 0.0f)
 592                 CDAudio_Pause ();
 593         else
 594         {
 595                 // If the CD has been unmuted
 596                 if (cdvolume == 0.0f)
 597                         CDAudio_Resume ();
 598
 599                 if (faketrack != -1)
 600                         S_SetChannelVolume (faketrack, newvol);
 601                 else
 602                         CDAudio_SysSetVolume (newvol);
 603         }
 604
 605         cdvolume = newvol;
 606 }
 607
 608 static void CDAudio_StopPlaylistTrack(void)
 609 {
 610         if (music_playlist_active >= 0 && music_playlist_active < MAX_PLAYLISTS && music_playlist_sampleposition[music_playlist_active].value >= 0)
 611         {
 612                 // save position for resume
 613                 float position = CDAudio_GetPosition();
 614                 Cvar_SetValueQuick(&music_playlist_sampleposition[music_playlist_active], position >= 0 ? position : 0);
 615         }
 616         music_playlist_active = -1;
 617         music_playlist_playing = 0; // not playing
 618 }
 619
 620 void CDAudio_StartPlaylist(qboolean resume)
 621 {
 622         const char *list;
 623         const char *t;
 624         int index;
 625         int current;
 626         int randomplay;
 627         int count;
 628         int listindex;
 629         float position;
 630         char trackname[MAX_QPATH];
 631         CDAudio_Stop();
 632         index = music_playlist_index.integer;
 633         if (index >= 0 && index < MAX_PLAYLISTS && bgmvolume.value > 0)
 634         {
 635                 list = music_playlist_list[index].string;
 636                 current = music_playlist_current[index].integer;
 637                 randomplay = music_playlist_random[index].integer;
 638                 position = music_playlist_sampleposition[index].value;
 639                 count = 0;
 640                 trackname[0] = 0;
 641                 if (list && list[0])
 642                 {
 643                         for (t = list;;count++)
 644                         {
 645                                 if (!COM_ParseToken_Console(&t))
 646                                         break;
 647                                 // if we don't find the desired track, use the first one
 648                                 if (count == 0)
 649                                         strlcpy(trackname, com_token, sizeof(trackname));
 650                         }
 651                 }
 652                 if (count > 0)
 653                 {
 654                         // position < 0 means never resume track
 655                         if (position < 0)
 656                                 position = 0;
 657                         // advance to next track in playlist if the last one ended
 658                         if (!resume)
 659                         {
 660                                 position = 0;
 661                                 current++;
 662                                 if (randomplay)
 663                                         current = (int)lhrandom(0, count);
 664                         }
 665                         // wrap playlist position if needed
 666                         if (current >= count)
 667                                 current = 0;
 668                         // set current
 669                         Cvar_SetValueQuick(&music_playlist_current[index], current);
 670                         // get the Nth trackname
 671                         if (current >= 0 && current < count)
 672                         {
 673                                 for (listindex = 0, t = list;;listindex++)
 674                                 {
 675                                         if (!COM_ParseToken_Console(&t))
 676                                                 break;
 677                                         if (listindex == current)
 678                                         {
 679                                                 strlcpy(trackname, com_token, sizeof(trackname));
 680                                                 break;
 681                                         }
 682                                 }
 683                         }
 684                         if (trackname[0])
 685                         {
 686                                 CDAudio_Play_byName(trackname, false, false, position);
 687                                 if (faketrack != -1)
 688                                         music_playlist_active = index;
 689                         }
 690                 }
 691         }
 692         music_playlist_playing = music_playlist_active >= 0 ? 1 : -1;
 693 }
 694
 695 void CDAudio_Update (void)
 696 {
 697         static int lastplaylist = -1;
 698         if (!enabled)
 699                 return;
 700
 701         CDAudio_SetVolume (bgmvolume.value);
 702         if (music_playlist_playing > 0 && CDAudio_GetPosition() < 0)
 703         {
 704                 // this track ended, start a new track from the beginning
 705                 CDAudio_StartPlaylist(false);
 706                 lastplaylist = music_playlist_index.integer;
 707         }
 708         else if (lastplaylist != music_playlist_index.integer
 709         || (bgmvolume.value > 0 && !music_playlist_playing && music_playlist_index.integer >= 0))
 710         {
 711                 // active playlist changed, save position and switch track
 712                 CDAudio_StartPlaylist(true);
 713                 lastplaylist = music_playlist_index.integer;
 714         }
 715
 716         if (faketrack == -1 && cdaudio.integer != 0 && bgmvolume.value != 0)
 717                 CDAudio_SysUpdate();
 718 }
 719
 720 int CDAudio_Init (void)
 721 {
 722         int i;
 723
 724         if (cls.state == ca_dedicated)
 725                 return -1;
 726
 727 // COMMANDLINEOPTION: Sound: -nocdaudio disables CD audio support
 728         if (COM_CheckParm("-nocdaudio"))
 729                 return -1;
 730
 731         CDAudio_SysInit();
 732
 733 #ifdef MAXTRACKS
 734         for (i = 0; i < MAXTRACKS; i++)
 735                 *remap[i] = 0;
 736 #endif
 737
 738         Cvar_RegisterVariable(&cdaudio);
 739         Cvar_RegisterVariable(&cdaudioinitialized);
 740         Cvar_SetValueQuick(&cdaudioinitialized, true);
 741         enabled = true;
 742
 743         Cvar_RegisterVariable(&music_playlist_index);
 744         for (i = 0;i < MAX_PLAYLISTS;i++)
 745         {
 746                 Cvar_RegisterVariable(&music_playlist_list[i]);
 747                 Cvar_RegisterVariable(&music_playlist_current[i]);
 748                 Cvar_RegisterVariable(&music_playlist_random[i]);
 749                 Cvar_RegisterVariable(&music_playlist_sampleposition[i]);
 750         }
 751
 752         Cmd_AddCommand("cd", CD_f, "execute a CD drive command (cd on/off/reset/remap/close/play/loop/stop/pause/resume/eject/info) - use cd by itself for usage");
 753
 754         return 0;
 755 }
 756
 757 int CDAudio_Startup (void)
 758 {
 759         if (COM_CheckParm("-nocdaudio"))
 760                 return -1;
 761
 762         CDAudio_SysStartup ();
 763
 764         if (CDAudio_GetAudioDiskInfo())
 765         {
 766                 Con_Print("CDAudio_Init: No CD in player.\n");
 767                 cdValid = false;
 768         }
 769
 770         saved_vol = CDAudio_SysGetVolume ();
 771         if (saved_vol < 0.0f)
 772         {
 773                 Con_Print ("Can't get initial CD volume\n");
 774                 saved_vol = 1.0f;
 775         }
 776         else
 777                 Con_Printf ("Initial CD volume: %g\n", saved_vol);
 778
 779         initialized = true;
 780
 781         Con_Print("CD Audio Initialized\n");
 782
 783         return 0;
 784 }
 785
 786 void CDAudio_Shutdown (void)
 787 {
 788         if (!initialized)
 789                 return;
 790
 791         CDAudio_SysSetVolume (saved_vol);
 792
 793         CDAudio_Stop();
 794         CDAudio_SysShutdown();
 795         initialized = false;
 796 }