1 /* $Id: songs.c,v 1.9 2003-10-10 09:36:35 btb Exp $ */
3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
9 FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
17 * Routines to manage the songs in Descent.
20 * Revision 1.5 1995/11/03 12:52:59 allender
23 * Revision 1.4 1995/10/18 01:51:33 allender
24 * fixed up stuff for redbook
26 * Revision 1.3 1995/10/17 13:13:44 allender
27 * dont' add resource value to songs to play -- now done in digi
30 * Revision 1.2 1995/07/17 08:50:35 allender
31 * make work with new music system
33 * Revision 1.1 1995/05/16 15:31:05 allender
36 * Revision 2.1 1995/05/02 16:15:21 john
39 * Revision 2.0 1995/02/27 11:27:13 john
40 * New version 2.0, which has no anonymous unions, builds with
41 * Watcom 10.0, and doesn't require parsing BITMAPS.TBL.
43 * Revision 1.2 1995/02/11 12:42:12 john
44 * Added new song method, with FM bank switching..
46 * Revision 1.1 1995/02/11 10:20:33 john
75 song_info Songs[MAX_NUM_SONGS];
76 int Songs_initialized = 0;
82 extern void digi_stop_current_song();
84 int Redbook_enabled = 1;
86 //0 if redbook is no playing, else the track number
87 int Redbook_playing = 0;
89 #define NumLevelSongs (Num_songs - SONG_FIRST_LEVEL_SONG)
91 extern int CD_blast_mixer();
94 #define REDBOOK_VOLUME_SCALE (255/3) //255 is MAX
96 #define REDBOOK_VOLUME_SCALE (255)
99 //takes volume in range 0..8
100 void set_redbook_volume(int volume)
103 RBASetVolume(0); // makes the macs sound really funny
105 RBASetVolume(volume*REDBOOK_VOLUME_SCALE/8);
108 extern char CDROM_dir[];
113 char inputline[80+1];
116 if ( Songs_initialized ) return;
119 #if !defined(MACINTOSH) && !defined(WINDOWS) // don't crank it if on a macintosh!!!!!
120 if (!FindArg("-nomixer"))
121 CD_blast_mixer(); // Crank it!
125 if (cfexist("descent.sng")) { // mac (demo?) datafiles don't have the .sng file
126 fp = cfopen( "descent.sng", "rb" );
129 Error( "Couldn't open descent.sng" );
132 while (cfgets(inputline, 80, fp ))
134 char *p = strchr(inputline,'\n');
136 if ( strlen( inputline ) )
138 Assert( i < MAX_NUM_SONGS );
139 sscanf( inputline, "%s %s %s",
141 Songs[i].melodic_bank_file,
142 Songs[i].drum_bank_file );
143 //printf( "%d. '%s' '%s' '%s'\n",i,Songs[i].filename,Songs[i].melodic_bank_file,Songs[i].drum_bank_file );
148 if (Num_songs <= SONG_FIRST_LEVEL_SONG)
149 Error("Must have at least %d songs",SONG_FIRST_LEVEL_SONG+1);
153 Songs_initialized = 1;
156 #if !defined(SHAREWARE) || ( defined(SHAREWARE) && defined(APPLE_DEMO) )
157 if (FindArg("-noredbook"))
163 #ifndef __MSDOS__ // defined(WINDOWS) || defined(MACINTOSH)
166 RBAInit(toupper(CDROM_dir[0]) - 'A');
171 set_redbook_volume(Config_redbook_volume);
175 //atexit(RBAStop); // stop song on exit
176 #endif // endof ifndef SHAREWARE, ie ifdef SHAREWARE
179 #define FADE_TIME (f1_0/2)
181 //stop the redbook, so we can read off the CD
182 void songs_stop_redbook(void)
184 int old_volume = Config_redbook_volume*REDBOOK_VOLUME_SCALE/8;
185 fix old_time = timer_get_fixed_seconds();
187 if (Redbook_playing) { //fade out volume
190 fix t = timer_get_fixed_seconds();
192 new_volume = fixmuldiv(old_volume,(FADE_TIME - (t-old_time)),FADE_TIME);
197 RBASetVolume(new_volume);
199 } while (new_volume > 0);
202 //RBAStop(); // Stop CD, if playing
204 RBASetVolume(old_volume); //restore volume
210 //stop any songs - midi or redbook - that are currently playing
211 void songs_stop_all(void)
213 digi_stop_current_song(); // Stop midi song, if playing
215 songs_stop_redbook(); // Stop CD, if playing
218 int force_rb_register=0;
220 void reinit_redbook()
222 #ifndef __MSDOS__ // defined(WINDOWS) || defined(MACINTOSH)
225 RBAInit(toupper(CDROM_dir[0]) - 'A');
230 set_redbook_volume(Config_redbook_volume);
237 //returns 1 if track started sucessfully
238 //start at tracknum. if keep_playing set, play to end of disc. else
239 //play only specified track
240 int play_redbook_track(int tracknum,int keep_playing)
244 if (!RBAEnabled() && Redbook_enabled && !FindArg("-noredbook"))
247 if (force_rb_register) {
248 RBARegisterCD(); //get new track list for new CD
249 force_rb_register = 0;
252 if (Redbook_enabled && RBAEnabled()) {
253 int num_tracks = RBAGetNumberOfTracks();
254 if (tracknum <= num_tracks)
255 if (RBAPlayTracks(tracknum,keep_playing?num_tracks:tracknum)) {
256 Redbook_playing = tracknum;
260 return (Redbook_playing != 0);
264 * Some of these have different Track listings!
265 * Which one is the "correct" order?
267 #define D2_1_DISCID 0x7d0ff809 // Descent II
268 #define D2_2_DISCID 0xe010a30e // Descent II
269 #define D2_3_DISCID 0xd410070d // Descent II
270 #define D2_4_DISCID 0xc610080d // Descent II
271 #define D2_DEF_DISCID 0x87102209 // Definitive collection Disc 2
272 #define D2_OEM_DISCID 0xac0bc30d // Destination: Quartzon
273 #define D2_OEM2_DISCID 0xc40c0a0d // Destination: Quartzon
274 #define D2_VERTIGO_DISCID 0x53078208 // Vertigo
275 #define D2_VERTIGO2_DISCID 0x64071408 // Vertigo + DMB
276 #define D2_MAC_DISCID 0xb70ee40e // Macintosh
277 #define D2_IPLAY_DISCID 0x22115710 // iPlay for Macintosh
279 #define REDBOOK_TITLE_TRACK 2
280 #define REDBOOK_CREDITS_TRACK 3
281 #define REDBOOK_FIRST_LEVEL_TRACK (songs_haved2_cd()?4:1)
283 // songs_haved2_cd returns 1 if the descent 2 CD is in the drive and
287 int songs_haved2_cd()
291 if (!Redbook_enabled)
294 discid = RBAGetDiscID();
304 case D2_VERTIGO_DISCID:
305 case D2_VERTIGO2_DISCID:
307 case D2_IPLAY_DISCID:
308 printf("Found D2 CD! discid: %x\n", discid);
311 printf("Unknown CD! discid: %x\n", discid);
316 int songs_haved2_cd()
318 char temp[128],cwd[128];
322 strcpy(temp,CDROM_dir);
324 #ifndef MACINTOSH //for PC, strip of trailing slash
325 if (temp[strlen(temp)-1] == '\\')
326 temp[strlen(temp)-1] = 0;
329 if ( !chdir(temp) ) {
339 void songs_play_song( int songnum, int repeat )
342 //Assert(songnum != SONG_ENDLEVEL && songnum != SONG_ENDGAME); //not in full version
345 if ( !Songs_initialized )
348 //stop any music already playing
352 //do we want any of these to be redbook songs?
354 if (force_rb_register) {
355 RBARegisterCD(); //get new track list for new CD
356 force_rb_register = 0;
359 if (songnum == SONG_TITLE)
360 play_redbook_track(REDBOOK_TITLE_TRACK,0);
361 else if (songnum == SONG_CREDITS)
362 play_redbook_track(REDBOOK_CREDITS_TRACK,0);
364 if (!Redbook_playing) { //not playing redbook, so play midi
367 digi_play_midi_song( Songs[songnum].filename, Songs[songnum].melodic_bank_file, Songs[songnum].drum_bank_file, repeat );
369 digi_play_midi_song(songnum, repeat);
374 int current_song_level;
376 void songs_play_level_song( int levelnum )
381 Assert( levelnum != 0 );
383 if ( !Songs_initialized )
388 current_song_level = levelnum;
390 songnum = (levelnum>0)?(levelnum-1):(-levelnum);
392 if (!RBAEnabled() && Redbook_enabled && !FindArg("-noredbook"))
395 if (force_rb_register) {
396 RBARegisterCD(); //get new track list for new CD
397 force_rb_register = 0;
400 if (Redbook_enabled && RBAEnabled() && (n_tracks = RBAGetNumberOfTracks()) > 1) {
402 //try to play redbook
404 mprintf((0,"n_tracks = %d\n",n_tracks));
406 play_redbook_track(REDBOOK_FIRST_LEVEL_TRACK + (songnum % (n_tracks-REDBOOK_FIRST_LEVEL_TRACK+1)),1);
409 if (! Redbook_playing) { //not playing redbook, so play midi
411 songnum = SONG_FIRST_LEVEL_SONG + (songnum % NumLevelSongs);
414 digi_play_midi_song( Songs[songnum].filename, Songs[songnum].melodic_bank_file, Songs[songnum].drum_bank_file, 1 );
416 digi_play_midi_song( songnum, 1 );
422 //this should be called regularly to check for redbook restart
423 void songs_check_redbook_repeat()
425 static fix last_check_time;
428 if (!Redbook_playing || Config_redbook_volume==0) return;
430 current_time = timer_get_fixed_seconds();
431 if (current_time < last_check_time || (current_time - last_check_time) >= F2_0) {
432 if (!RBAPeekPlayStatus()) {
434 // if title ends, start credit music
435 // if credits music ends, restart it
436 if (Redbook_playing == REDBOOK_TITLE_TRACK || Redbook_playing == REDBOOK_CREDITS_TRACK)
437 play_redbook_track(REDBOOK_CREDITS_TRACK,0);
439 //songs_goto_next_song();
441 //new code plays all tracks to end of disk, so if disk has
442 //stopped we must be at end. So start again with level 1 song.
444 songs_play_level_song(1);
448 last_check_time = current_time;
452 //goto the next level song
453 void songs_goto_next_song()
455 if (Redbook_playing) //get correct track
456 current_song_level = RBAGetTrackNum() - REDBOOK_FIRST_LEVEL_TRACK + 1;
458 songs_play_level_song(current_song_level+1);
462 //goto the previous level song
463 void songs_goto_prev_song()
465 if (Redbook_playing) //get correct track
466 current_song_level = RBAGetTrackNum() - REDBOOK_FIRST_LEVEL_TRACK + 1;
468 if (current_song_level > 1)
469 songs_play_level_song(current_song_level-1);