1 /* $Id: songs.c,v 1.13 2004-08-28 23:17:45 schaffner Exp $ */
3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
4 SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
7 IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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
10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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.
30 #if !defined(_MSC_VER) && !defined(macintosh)
46 song_info Songs[MAX_NUM_SONGS];
47 int Songs_initialized = 0;
53 extern void digi_stop_current_song();
55 int Redbook_enabled = 1;
57 //0 if redbook is no playing, else the track number
58 int Redbook_playing = 0;
60 #define NumLevelSongs (Num_songs - SONG_FIRST_LEVEL_SONG)
62 extern int CD_blast_mixer();
65 #define REDBOOK_VOLUME_SCALE (255/3) //255 is MAX
67 #define REDBOOK_VOLUME_SCALE (255)
70 //takes volume in range 0..8
71 void set_redbook_volume(int volume)
74 RBASetVolume(0); // makes the macs sound really funny
76 RBASetVolume(volume*REDBOOK_VOLUME_SCALE/8);
79 extern char CDROM_dir[];
87 if ( Songs_initialized ) return;
90 #if !defined(MACINTOSH) && !defined(WINDOWS) // don't crank it if on a macintosh!!!!!
91 if (!FindArg("-nomixer"))
92 CD_blast_mixer(); // Crank it!
96 if (cfexist("descent.sng")) { // mac (demo?) datafiles don't have the .sng file
97 fp = cfopen( "descent.sng", "rb" );
100 Error( "Couldn't open descent.sng" );
103 while (cfgets(inputline, 80, fp ))
105 char *p = strchr(inputline,'\n');
107 if ( strlen( inputline ) )
109 Assert( i < MAX_NUM_SONGS );
110 sscanf( inputline, "%s %s %s",
112 Songs[i].melodic_bank_file,
113 Songs[i].drum_bank_file );
114 //printf( "%d. '%s' '%s' '%s'\n",i,Songs[i].filename,Songs[i].melodic_bank_file,Songs[i].drum_bank_file );
119 if (Num_songs <= SONG_FIRST_LEVEL_SONG)
120 Error("Must have at least %d songs",SONG_FIRST_LEVEL_SONG+1);
124 Songs_initialized = 1;
127 #if !defined(SHAREWARE) || ( defined(SHAREWARE) && defined(APPLE_DEMO) )
128 if (FindArg("-noredbook"))
134 #ifndef __MSDOS__ // defined(WINDOWS) || defined(MACINTOSH)
137 RBAInit(toupper(CDROM_dir[0]) - 'A');
142 set_redbook_volume(Config_redbook_volume);
146 atexit(RBAStop); // stop song on exit
147 #endif // endof ifndef SHAREWARE, ie ifdef SHAREWARE
150 #define FADE_TIME (f1_0/2)
152 //stop the redbook, so we can read off the CD
153 void songs_stop_redbook(void)
155 int old_volume = Config_redbook_volume*REDBOOK_VOLUME_SCALE/8;
156 fix old_time = timer_get_fixed_seconds();
158 if (Redbook_playing) { //fade out volume
161 fix t = timer_get_fixed_seconds();
163 new_volume = fixmuldiv(old_volume,(FADE_TIME - (t-old_time)),FADE_TIME);
168 RBASetVolume(new_volume);
170 } while (new_volume > 0);
173 RBAStop(); // Stop CD, if playing
175 RBASetVolume(old_volume); //restore volume
181 //stop any songs - midi or redbook - that are currently playing
182 void songs_stop_all(void)
184 digi_stop_current_song(); // Stop midi song, if playing
186 songs_stop_redbook(); // Stop CD, if playing
189 int force_rb_register=0;
191 void reinit_redbook()
193 #ifndef __MSDOS__ // defined(WINDOWS) || defined(MACINTOSH)
196 RBAInit(toupper(CDROM_dir[0]) - 'A');
201 set_redbook_volume(Config_redbook_volume);
208 //returns 1 if track started sucessfully
209 //start at tracknum. if keep_playing set, play to end of disc. else
210 //play only specified track
211 int play_redbook_track(int tracknum,int keep_playing)
215 if (!RBAEnabled() && Redbook_enabled && !FindArg("-noredbook"))
218 if (force_rb_register) {
219 RBARegisterCD(); //get new track list for new CD
220 force_rb_register = 0;
223 if (Redbook_enabled && RBAEnabled()) {
224 int num_tracks = RBAGetNumberOfTracks();
225 if (tracknum <= num_tracks)
226 if (RBAPlayTracks(tracknum,keep_playing?num_tracks:tracknum)) {
227 Redbook_playing = tracknum;
231 return (Redbook_playing != 0);
235 * Some of these have different Track listings!
236 * Which one is the "correct" order?
238 #define D2_1_DISCID 0x7d0ff809 // Descent II
239 #define D2_2_DISCID 0xe010a30e // Descent II
240 #define D2_3_DISCID 0xd410070d // Descent II
241 #define D2_4_DISCID 0xc610080d // Descent II
242 #define D2_DEF_DISCID 0x87102209 // Definitive collection Disc 2
243 #define D2_OEM_DISCID 0xac0bc30d // Destination: Quartzon
244 #define D2_OEM2_DISCID 0xc40c0a0d // Destination: Quartzon
245 #define D2_VERTIGO_DISCID 0x53078208 // Vertigo
246 #define D2_VERTIGO2_DISCID 0x64071408 // Vertigo + DMB
247 #define D2_MAC_DISCID 0xb70ee40e // Macintosh
248 #define D2_IPLAY_DISCID 0x22115710 // iPlay for Macintosh
250 #define REDBOOK_TITLE_TRACK 2
251 #define REDBOOK_CREDITS_TRACK 3
252 #define REDBOOK_FIRST_LEVEL_TRACK (songs_haved2_cd()?4:1)
254 // songs_haved2_cd returns 1 if the descent 2 CD is in the drive and
258 int songs_haved2_cd()
262 if (!Redbook_enabled)
265 discid = RBAGetDiscID();
275 case D2_VERTIGO_DISCID:
276 case D2_VERTIGO2_DISCID:
278 case D2_IPLAY_DISCID:
279 printf("Found D2 CD! discid: %x\n", discid);
282 printf("Unknown CD! discid: %x\n", discid);
287 int songs_haved2_cd()
289 char temp[128],cwd[128];
293 strcpy(temp,CDROM_dir);
295 #ifndef MACINTOSH //for PC, strip of trailing slash
296 if (temp[strlen(temp)-1] == '\\')
297 temp[strlen(temp)-1] = 0;
300 if ( !chdir(temp) ) {
310 void songs_play_song( int songnum, int repeat )
313 //Assert(songnum != SONG_ENDLEVEL && songnum != SONG_ENDGAME); //not in full version
316 if ( !Songs_initialized )
319 //stop any music already playing
323 //do we want any of these to be redbook songs?
325 if (force_rb_register) {
326 RBARegisterCD(); //get new track list for new CD
327 force_rb_register = 0;
330 if (songnum == SONG_TITLE)
331 play_redbook_track(REDBOOK_TITLE_TRACK,0);
332 else if (songnum == SONG_CREDITS)
333 play_redbook_track(REDBOOK_CREDITS_TRACK,0);
335 if (!Redbook_playing) { //not playing redbook, so play midi
338 digi_play_midi_song( Songs[songnum].filename, Songs[songnum].melodic_bank_file, Songs[songnum].drum_bank_file, repeat );
340 digi_play_midi_song(songnum, repeat);
345 int current_song_level;
347 void songs_play_level_song( int levelnum )
352 Assert( levelnum != 0 );
354 if ( !Songs_initialized )
359 current_song_level = levelnum;
361 songnum = (levelnum>0)?(levelnum-1):(-levelnum);
363 if (!RBAEnabled() && Redbook_enabled && !FindArg("-noredbook"))
366 if (force_rb_register) {
367 RBARegisterCD(); //get new track list for new CD
368 force_rb_register = 0;
371 if (Redbook_enabled && RBAEnabled() && (n_tracks = RBAGetNumberOfTracks()) > 1) {
373 //try to play redbook
375 mprintf((0,"n_tracks = %d\n",n_tracks));
377 play_redbook_track(REDBOOK_FIRST_LEVEL_TRACK + (songnum % (n_tracks-REDBOOK_FIRST_LEVEL_TRACK+1)),1);
380 if (! Redbook_playing) { //not playing redbook, so play midi
382 songnum = SONG_FIRST_LEVEL_SONG + (songnum % NumLevelSongs);
385 digi_play_midi_song( Songs[songnum].filename, Songs[songnum].melodic_bank_file, Songs[songnum].drum_bank_file, 1 );
387 digi_play_midi_song( songnum, 1 );
393 //this should be called regularly to check for redbook restart
394 void songs_check_redbook_repeat()
396 static fix last_check_time;
399 if (!Redbook_playing || Config_redbook_volume==0) return;
401 current_time = timer_get_fixed_seconds();
402 if (current_time < last_check_time || (current_time - last_check_time) >= F2_0) {
403 if (!RBAPeekPlayStatus()) {
405 // if title ends, start credit music
406 // if credits music ends, restart it
407 if (Redbook_playing == REDBOOK_TITLE_TRACK || Redbook_playing == REDBOOK_CREDITS_TRACK)
408 play_redbook_track(REDBOOK_CREDITS_TRACK,0);
410 //songs_goto_next_song();
412 //new code plays all tracks to end of disk, so if disk has
413 //stopped we must be at end. So start again with level 1 song.
415 songs_play_level_song(1);
419 last_check_time = current_time;
423 //goto the next level song
424 void songs_goto_next_song()
426 if (Redbook_playing) //get correct track
427 current_song_level = RBAGetTrackNum() - REDBOOK_FIRST_LEVEL_TRACK + 1;
429 songs_play_level_song(current_song_level+1);
433 //goto the previous level song
434 void songs_goto_prev_song()
436 if (Redbook_playing) //get correct track
437 current_song_level = RBAGetTrackNum() - REDBOOK_FIRST_LEVEL_TRACK + 1;
439 if (current_song_level > 1)
440 songs_play_level_song(current_song_level-1);