-
Notifications
You must be signed in to change notification settings - Fork 3
/
music.c
1621 lines (1497 loc) · 39.7 KB
/
music.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
SDL_mixer: An audio mixer library based on the SDL library
Copyright (C) 1997-2016 Sam Lantinga <[email protected]>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/* $Id$ */
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <assert.h>
#include "SDL_endian.h"
#include "SDL_audio.h"
#include "SDL_timer.h"
#include "SDL_mixer.h"
#ifdef CMD_MUSIC
#include "music_cmd.h"
#endif
#ifdef WAV_MUSIC
#include "wavestream.h"
#endif
#ifdef MODPLUG_MUSIC
#include "music_modplug.h"
#endif
#ifdef MOD_MUSIC
#include "music_mod.h"
#endif
#ifdef MID_MUSIC
# ifdef USE_TIMIDITY_MIDI
# include "timidity.h"
# endif
# ifdef USE_FLUIDSYNTH_MIDI
# include "fluidsynth.h"
# endif
# ifdef USE_NATIVE_MIDI
# include "native_midi.h"
# endif
#endif
#ifdef OGG_MUSIC
#include "music_ogg.h"
#endif
#ifdef MP3_MUSIC
#include "dynamic_mp3.h"
#endif
#ifdef MP3_MAD_MUSIC
#include "music_mad.h"
#endif
#ifdef FLAC_MUSIC
#include "music_flac.h"
#endif
#if defined(MP3_MUSIC) || defined(MP3_MAD_MUSIC)
static SDL_AudioSpec used_mixer;
#endif
int volatile music_active = 1;
static int volatile music_stopped = 0;
static int music_loops = 0;
static char *music_cmd = NULL;
static Mix_Music * volatile music_playing = NULL;
static int music_volume = MIX_MAX_VOLUME;
struct _Mix_Music {
Mix_MusicType type;
union {
#ifdef CMD_MUSIC
MusicCMD *cmd;
#endif
#ifdef WAV_MUSIC
WAVStream *wave;
#endif
#ifdef MODPLUG_MUSIC
modplug_data *modplug;
#endif
#ifdef MOD_MUSIC
struct MODULE *module;
#endif
#ifdef MID_MUSIC
#ifdef USE_TIMIDITY_MIDI
MidiSong *midi;
#endif
#ifdef USE_FLUIDSYNTH_MIDI
FluidSynthMidiSong *fluidsynthmidi;
#endif
#ifdef USE_NATIVE_MIDI
NativeMidiSong *nativemidi;
#endif
#endif
#ifdef OGG_MUSIC
OGG_music *ogg;
#endif
#ifdef MP3_MUSIC
SMPEG *mp3;
#endif
#ifdef MP3_MAD_MUSIC
mad_data *mp3_mad;
#endif
#ifdef FLAC_MUSIC
FLAC_music *flac;
#endif
} data;
Mix_Fading fading;
int fade_step;
int fade_steps;
int error;
};
#ifdef MID_MUSIC
#ifdef USE_TIMIDITY_MIDI
static int timidity_ok;
static int samplesize;
#endif
#ifdef USE_FLUIDSYNTH_MIDI
static int fluidsynth_ok;
#endif
#ifdef USE_NATIVE_MIDI
static int native_midi_ok;
#endif
#endif
/* Used to calculate fading steps */
static int ms_per_step;
/* rcg06042009 report available decoders at runtime. */
static const char **music_decoders = NULL;
static int num_decoders = 0;
/* Semicolon-separated SoundFont paths */
#ifdef MID_MUSIC
char* soundfont_paths = NULL;
#endif
int Mix_GetNumMusicDecoders(void)
{
return(num_decoders);
}
const char *Mix_GetMusicDecoder(int index)
{
if ((index < 0) || (index >= num_decoders)) {
return NULL;
}
return(music_decoders[index]);
}
static void add_music_decoder(const char *decoder)
{
void *ptr = SDL_realloc((void *)music_decoders, (num_decoders + 1) * sizeof (const char *));
if (ptr == NULL) {
return; /* oh well, go on without it. */
}
music_decoders = (const char **) ptr;
music_decoders[num_decoders++] = decoder;
}
/* Local low-level functions prototypes */
static void music_internal_initialize_volume(void);
static void music_internal_volume(int volume);
static int music_internal_play(Mix_Music *music, double position);
static int music_internal_position(double position);
static int music_internal_playing();
static void music_internal_halt(void);
/* Support for hooking when the music has finished */
static void (*music_finished_hook)(void) = NULL;
void Mix_HookMusicFinished(void (*music_finished)(void))
{
SDL_LockAudio();
music_finished_hook = music_finished;
SDL_UnlockAudio();
}
/* If music isn't playing, halt it if no looping is required, restart it */
/* othesrchise. NOP if the music is playing */
static int music_halt_or_loop (void)
{
/* Restart music if it has to loop */
if (!music_internal_playing())
{
#ifdef USE_NATIVE_MIDI
/* Native MIDI handles looping internally */
if (music_playing->type == MUS_MID && native_midi_ok) {
music_loops = 0;
}
#endif
/* Restart music if it has to loop at a high level */
if (music_loops)
{
Mix_Fading current_fade;
if (music_loops > 0) {
--music_loops;
}
current_fade = music_playing->fading;
music_internal_play(music_playing, 0.0);
music_playing->fading = current_fade;
}
else
{
music_internal_halt();
if (music_finished_hook)
music_finished_hook();
return 0;
}
}
return 1;
}
/* Mixing function */
void music_mixer(void *udata, Uint8 *stream, int len)
{
int left = 0;
if ( music_playing && music_active ) {
/* Handle fading */
if ( music_playing->fading != MIX_NO_FADING ) {
if ( music_playing->fade_step++ < music_playing->fade_steps ) {
int volume;
int fade_step = music_playing->fade_step;
int fade_steps = music_playing->fade_steps;
if ( music_playing->fading == MIX_FADING_OUT ) {
volume = (music_volume * (fade_steps-fade_step)) / fade_steps;
} else { /* Fading in */
volume = (music_volume * fade_step) / fade_steps;
}
music_internal_volume(volume);
} else {
if ( music_playing->fading == MIX_FADING_OUT ) {
music_internal_halt();
if ( music_finished_hook ) {
music_finished_hook();
}
return;
}
music_playing->fading = MIX_NO_FADING;
}
}
music_halt_or_loop();
if (!music_internal_playing())
return;
switch (music_playing->type) {
#ifdef CMD_MUSIC
case MUS_CMD:
/* The playing is done externally */
break;
#endif
#ifdef WAV_MUSIC
case MUS_WAV:
left = WAVStream_PlaySome(stream, len);
break;
#endif
#ifdef MODPLUG_MUSIC
case MUS_MODPLUG:
left = modplug_playAudio(music_playing->data.modplug, stream, len);
break;
#endif
#ifdef MOD_MUSIC
case MUS_MOD:
left = MOD_playAudio(music_playing->data.module, stream, len);
break;
#endif
#ifdef MID_MUSIC
case MUS_MID:
#ifdef USE_NATIVE_MIDI
if ( native_midi_ok ) {
/* Native midi is handled asynchronously */
goto skip;
}
#endif
#ifdef USE_FLUIDSYNTH_MIDI
if ( fluidsynth_ok ) {
fluidsynth_playsome(music_playing->data.fluidsynthmidi, stream, len);
goto skip;
}
#endif
#ifdef USE_TIMIDITY_MIDI
if ( timidity_ok ) {
int samples = len / samplesize;
Timidity_PlaySome(stream, samples);
goto skip;
}
#endif
break;
#endif
#ifdef OGG_MUSIC
case MUS_OGG:
left = OGG_playAudio(music_playing->data.ogg, stream, len);
break;
#endif
#ifdef FLAC_MUSIC
case MUS_FLAC:
left = FLAC_playAudio(music_playing->data.flac, stream, len);
break;
#endif
#ifdef MP3_MUSIC
case MUS_MP3:
left = (len - smpeg.SMPEG_playAudio(music_playing->data.mp3, stream, len));
break;
#endif
#ifdef MP3_MAD_MUSIC
case MUS_MP3_MAD:
left = mad_getSamples(music_playing->data.mp3_mad, stream, len);
break;
#endif
default:
/* Unknown music type?? */
break;
}
}
skip:
/* Handle seamless music looping */
if (left > 0 && left < len) {
music_halt_or_loop();
if (music_internal_playing())
music_mixer(udata, stream+(len-left), left);
}
}
/* Initialize the music players with a certain desired audio format */
int open_music(SDL_AudioSpec *mixer)
{
#ifdef WAV_MUSIC
if ( WAVStream_Init(mixer) == 0 ) {
add_music_decoder("WAVE");
}
#endif
#ifdef MODPLUG_MUSIC
if ( modplug_init(mixer) == 0 ) {
add_music_decoder("MODPLUG");
}
#endif
#ifdef MOD_MUSIC
if ( MOD_init(mixer) == 0 ) {
add_music_decoder("MIKMOD");
}
#endif
#ifdef MID_MUSIC
#ifdef USE_TIMIDITY_MIDI
samplesize = mixer->size / mixer->samples;
if ( Timidity_Init(mixer->freq, mixer->format,
mixer->channels, mixer->samples) == 0 ) {
timidity_ok = 1;
add_music_decoder("TIMIDITY");
} else {
timidity_ok = 0;
}
#endif
#ifdef USE_FLUIDSYNTH_MIDI
if ( fluidsynth_init(mixer) == 0 ) {
fluidsynth_ok = 1;
add_music_decoder("FLUIDSYNTH");
} else {
fluidsynth_ok = 0;
}
#endif
#ifdef USE_NATIVE_MIDI
#ifdef USE_FLUIDSYNTH_MIDI
native_midi_ok = !fluidsynth_ok;
if ( native_midi_ok )
#endif
#ifdef USE_TIMIDITY_MIDI
native_midi_ok = !timidity_ok;
if ( !native_midi_ok ) {
native_midi_ok = (getenv("SDL_NATIVE_MUSIC") != NULL);
}
if ( native_midi_ok )
#endif
native_midi_ok = native_midi_detect();
if ( native_midi_ok )
add_music_decoder("NATIVEMIDI");
#endif
#endif
#ifdef OGG_MUSIC
if ( OGG_init(mixer) == 0 ) {
add_music_decoder("OGG");
}
#endif
#ifdef FLAC_MUSIC
if ( FLAC_init(mixer) == 0 ) {
add_music_decoder("FLAC");
}
#endif
#if defined(MP3_MUSIC) || defined(MP3_MAD_MUSIC)
/* Keep a copy of the mixer */
used_mixer = *mixer;
add_music_decoder("MP3");
#endif
music_playing = NULL;
music_stopped = 0;
Mix_VolumeMusic(SDL_MIX_MAXVOLUME);
/* Calculate the number of ms for each callback */
ms_per_step = (int) (((float)mixer->samples * 1000.0) / mixer->freq);
return(0);
}
/* Portable case-insensitive string compare function */
int MIX_string_equals(const char *str1, const char *str2)
{
while ( *str1 && *str2 ) {
if ( toupper((unsigned char)*str1) !=
toupper((unsigned char)*str2) )
break;
++str1;
++str2;
}
return (!*str1 && !*str2);
}
static int detect_mp3(Uint8 *magic)
{
if ( strncmp((char *)magic, "ID3", 3) == 0 ) {
return 1;
}
/* Detection code lifted from SMPEG */
if(((magic[0] & 0xff) != 0xff) || // No sync bits
((magic[1] & 0xf0) != 0xf0) || //
((magic[2] & 0xf0) == 0x00) || // Bitrate is 0
((magic[2] & 0xf0) == 0xf0) || // Bitrate is 15
((magic[2] & 0x0c) == 0x0c) || // Frequency is 3
((magic[1] & 0x06) == 0x00)) { // Layer is 4
return(0);
}
return 1;
}
/* MUS_MOD can't be auto-detected. If no other format was detected, MOD is
* assumed and MUS_MOD will be returned, meaning that the format might not
* actually be MOD-based.
*
* Returns MUS_NONE in case of errors. */
static Mix_MusicType detect_music_type(SDL_RWops *src)
{
Uint8 magic[5];
Uint8 moremagic[9];
Sint64 start = SDL_RWtell(src);
if (SDL_RWread(src, magic, 1, 4) != 4 || SDL_RWread(src, moremagic, 1, 8) != 8 ) {
Mix_SetError("Couldn't read from RWops");
return MUS_NONE;
}
SDL_RWseek(src, start, RW_SEEK_SET);
magic[4]='\0';
moremagic[8] = '\0';
/* WAVE files have the magic four bytes "RIFF"
AIFF files have the magic 12 bytes "FORM" XXXX "AIFF" */
if (((strcmp((char *)magic, "RIFF") == 0) && (strcmp((char *)(moremagic+4), "WAVE") == 0)) ||
(strcmp((char *)magic, "FORM") == 0)) {
return MUS_WAV;
}
/* Ogg Vorbis files have the magic four bytes "OggS" */
if (strcmp((char *)magic, "OggS") == 0) {
return MUS_OGG;
}
/* FLAC files have the magic four bytes "fLaC" */
if (strcmp((char *)magic, "fLaC") == 0) {
return MUS_FLAC;
}
/* MIDI files have the magic four bytes "MThd" */
if (strcmp((char *)magic, "MThd") == 0) {
// Patch - use modplug for midi if nothing better
#ifdef USE_NATIVE_MIDI
return MUS_MID;
#else
return MUS_MOD;
#endif
}
if (detect_mp3(magic)) {
return MUS_MP3;
}
/* Assume MOD format.
*
* Apparently there is no way to check if the file is really a MOD,
* or there are too many formats supported by MikMod/ModPlug, or
* MikMod/ModPlug does this check by itself. */
return MUS_MOD;
}
/* Load a music file */
Mix_Music *Mix_LoadMUS(const char *file)
{
SDL_RWops *src;
Mix_Music *music;
Mix_MusicType type;
char *ext = strrchr(file, '.');
#ifdef CMD_MUSIC
if ( music_cmd ) {
/* Allocate memory for the music structure */
music = (Mix_Music *)SDL_malloc(sizeof(Mix_Music));
if ( music == NULL ) {
Mix_SetError("Out of memory");
return(NULL);
}
music->error = 0;
music->type = MUS_CMD;
music->data.cmd = MusicCMD_LoadSong(music_cmd, file);
if ( music->data.cmd == NULL ) {
SDL_free(music);
music = NULL;
}
return music;
}
#endif
src = SDL_RWFromFile(file, "rb");
if ( src == NULL ) {
Mix_SetError("Couldn't open '%s'", file);
return NULL;
}
/* Use the extension as a first guess on the file type */
type = MUS_NONE;
ext = strrchr(file, '.');
/* No need to guard these with #ifdef *_MUSIC stuff,
* since we simply call Mix_LoadMUSType_RW() later */
if ( ext ) {
++ext; /* skip the dot in the extension */
if ( MIX_string_equals(ext, "WAV") ) {
type = MUS_WAV;
} else if ( MIX_string_equals(ext, "MID") ||
MIX_string_equals(ext, "MIDI") ||
MIX_string_equals(ext, "KAR") ) {
// Patch - use modplug for midi if nothing better
#ifdef USE_NATIVE_MIDI
type = MUS_MID;
#else
type = MUS_MOD;
#endif
} else if ( MIX_string_equals(ext, "OGG") ) {
type = MUS_OGG;
} else if ( MIX_string_equals(ext, "MOD") ) {
type = MUS_MOD;
} else if ( MIX_string_equals(ext, "FLAC") ) {
type = MUS_FLAC;
} else if ( MIX_string_equals(ext, "MPG") ||
MIX_string_equals(ext, "MPEG") ||
MIX_string_equals(ext, "MP3") ||
MIX_string_equals(ext, "MAD") ) {
type = MUS_MP3;
}
}
if ( type == MUS_NONE ) {
type = detect_music_type(src);
}
/* We need to know if a specific error occurs; if not, we'll set a
* generic one, so we clear the current one. */
SDL_ClearError();
music = Mix_LoadMUSType_RW(src, type, SDL_TRUE);
if ( music == NULL && Mix_GetError()[0] == '\0' ) {
Mix_SetError("Unrecognized music format");
}
return music;
}
Mix_Music *Mix_LoadMUS_RW(SDL_RWops *src, int freesrc)
{
return Mix_LoadMUSType_RW(src, MUS_NONE, freesrc);
}
Mix_Music *Mix_LoadMUSType_RW(SDL_RWops *src, Mix_MusicType type, int freesrc)
{
Mix_Music *music;
Sint64 start;
if (!src) {
Mix_SetError("RWops pointer is NULL");
return NULL;
}
start = SDL_RWtell(src);
/* If the caller wants auto-detection, figure out what kind of file
* this is. */
if (type == MUS_NONE) {
if ((type = detect_music_type(src)) == MUS_NONE) {
/* Don't call Mix_SetError() here since detect_music_type()
* does that. */
if (freesrc) {
SDL_RWclose(src);
}
return NULL;
}
}
/* Allocate memory for the music structure */
music = (Mix_Music *)SDL_malloc(sizeof(Mix_Music));
if (music == NULL ) {
Mix_SetError("Out of memory");
if (freesrc) {
SDL_RWclose(src);
}
return NULL;
}
music->error = 1;
switch (type) {
#ifdef WAV_MUSIC
case MUS_WAV:
music->type = MUS_WAV;
music->data.wave = WAVStream_LoadSong_RW(src, freesrc);
if (music->data.wave) {
music->error = 0;
}
break;
#endif
#ifdef OGG_MUSIC
case MUS_OGG:
music->type = MUS_OGG;
music->data.ogg = OGG_new_RW(src, freesrc);
if (music->data.ogg) {
music->error = 0;
}
break;
#endif
#ifdef FLAC_MUSIC
case MUS_FLAC:
music->type = MUS_FLAC;
music->data.flac = FLAC_new_RW(src, freesrc);
if (music->data.flac) {
music->error = 0;
}
break;
#endif
#ifdef MP3_MUSIC
case MUS_MP3:
if (Mix_Init(MIX_INIT_MP3)) {
SMPEG_Info info;
music->type = MUS_MP3;
music->data.mp3 = smpeg.SMPEG_new_rwops(src, &info, freesrc, 0);
if (!info.has_audio) {
Mix_SetError("MPEG file does not have any audio stream.");
smpeg.SMPEG_delete(music->data.mp3);
/* Deleting the MP3 closed the source if desired */
freesrc = SDL_FALSE;
} else {
smpeg.SMPEG_actualSpec(music->data.mp3, &used_mixer);
music->error = 0;
}
}
break;
#elif defined(MP3_MAD_MUSIC)
case MUS_MP3:
music->type = MUS_MP3_MAD;
music->data.mp3_mad = mad_openFileRW(src, &used_mixer, freesrc);
if (music->data.mp3_mad) {
music->error = 0;
} else {
Mix_SetError("Could not initialize MPEG stream.");
}
break;
#endif
#ifdef MID_MUSIC
case MUS_MID:
music->type = MUS_MID;
#ifdef USE_NATIVE_MIDI
if (native_midi_ok) {
SDL_RWseek(src, start, RW_SEEK_SET);
music->data.nativemidi = native_midi_loadsong_RW(src, freesrc);
if (music->data.nativemidi) {
music->error = 0;
} else {
Mix_SetError("%s", native_midi_error());
}
break;
}
#endif
#ifdef USE_FLUIDSYNTH_MIDI
if (fluidsynth_ok) {
SDL_RWseek(src, start, RW_SEEK_SET);
music->data.fluidsynthmidi = fluidsynth_loadsong_RW(src, freesrc);
if (music->data.fluidsynthmidi) {
music->error = 0;
}
break;
}
#endif
#ifdef USE_TIMIDITY_MIDI
if (timidity_ok) {
SDL_RWseek(src, start, RW_SEEK_SET);
music->data.midi = Timidity_LoadSong_RW(src, freesrc);
if (music->data.midi) {
music->error = 0;
} else {
Mix_SetError("%s", Timidity_Error());
}
} else {
Mix_SetError("%s", Timidity_Error());
}
#endif
break;
#endif
#if defined(MODPLUG_MUSIC) || defined(MOD_MUSIC)
case MUS_MOD:
#ifdef MODPLUG_MUSIC
if (music->error) {
SDL_RWseek(src, start, RW_SEEK_SET);
music->type = MUS_MODPLUG;
music->data.modplug = modplug_new_RW(src, freesrc);
if (music->data.modplug) {
music->error = 0;
}
}
#endif
#ifdef MOD_MUSIC
if (music->error) {
SDL_RWseek(src, start, RW_SEEK_SET);
music->type = MUS_MOD;
music->data.module = MOD_new_RW(src, freesrc);
if (music->data.module) {
music->error = 0;
}
}
#endif
break;
#endif
default:
Mix_SetError("Unrecognized music format");
break;
} /* switch (want) */
if (music->error) {
SDL_free(music);
if (freesrc) {
SDL_RWclose(src);
} else {
SDL_RWseek(src, start, RW_SEEK_SET);
}
music = NULL;
}
return music;
}
/* Free a music chunk previously loaded */
void Mix_FreeMusic(Mix_Music *music)
{
if ( music ) {
/* Stop the music if it's currently playing */
SDL_LockAudio();
if ( music == music_playing ) {
/* Wait for any fade out to finish */
while ( music->fading == MIX_FADING_OUT ) {
SDL_UnlockAudio();
SDL_Delay(100);
SDL_LockAudio();
}
if ( music == music_playing ) {
music_internal_halt();
}
}
SDL_UnlockAudio();
switch (music->type) {
#ifdef CMD_MUSIC
case MUS_CMD:
MusicCMD_FreeSong(music->data.cmd);
break;
#endif
#ifdef WAV_MUSIC
case MUS_WAV:
WAVStream_FreeSong(music->data.wave);
break;
#endif
#ifdef MODPLUG_MUSIC
case MUS_MODPLUG:
modplug_delete(music->data.modplug);
break;
#endif
#ifdef MOD_MUSIC
case MUS_MOD:
MOD_delete(music->data.module);
break;
#endif
#ifdef MID_MUSIC
case MUS_MID:
#ifdef USE_NATIVE_MIDI
if ( native_midi_ok ) {
native_midi_freesong(music->data.nativemidi);
goto skip;
}
#endif
#ifdef USE_FLUIDSYNTH_MIDI
if ( fluidsynth_ok ) {
fluidsynth_freesong(music->data.fluidsynthmidi);
goto skip;
}
#endif
#ifdef USE_TIMIDITY_MIDI
if ( timidity_ok ) {
Timidity_FreeSong(music->data.midi);
goto skip;
}
#endif
break;
#endif
#ifdef OGG_MUSIC
case MUS_OGG:
OGG_delete(music->data.ogg);
break;
#endif
#ifdef FLAC_MUSIC
case MUS_FLAC:
FLAC_delete(music->data.flac);
break;
#endif
#ifdef MP3_MUSIC
case MUS_MP3:
smpeg.SMPEG_delete(music->data.mp3);
break;
#endif
#ifdef MP3_MAD_MUSIC
case MUS_MP3_MAD:
mad_closeFile(music->data.mp3_mad);
break;
#endif
default:
/* Unknown music type?? */
break;
}
skip:
SDL_free(music);
}
}
/* Find out the music format of a mixer music, or the currently playing
music, if 'music' is NULL.
*/
Mix_MusicType Mix_GetMusicType(const Mix_Music *music)
{
Mix_MusicType type = MUS_NONE;
if ( music ) {
type = music->type;
} else {
SDL_LockAudio();
if ( music_playing ) {
type = music_playing->type;
}
SDL_UnlockAudio();
}
return(type);
}
/* Play a music chunk. Returns 0, or -1 if there was an error.
*/
static int music_internal_play(Mix_Music *music, double position)
{
int retval = 0;
#if defined(__MACOSX__) && defined(USE_NATIVE_MIDI)
/* This fixes a bug with native MIDI on Mac OS X, where you
can't really stop and restart MIDI from the audio callback.
*/
if ( music == music_playing && music->type == MUS_MID && native_midi_ok ) {
/* Just a seek suffices to restart playing */
music_internal_position(position);
return 0;
}
#endif
/* Note the music we're playing */
if ( music_playing ) {
music_internal_halt();
}
music_playing = music;
/* Set the initial volume */
if ( music->type != MUS_MOD ) {
music_internal_initialize_volume();
}
/* Set up for playback */
switch (music->type) {
#ifdef CMD_MUSIC
case MUS_CMD:
MusicCMD_Start(music->data.cmd);
break;
#endif
#ifdef WAV_MUSIC
case MUS_WAV:
WAVStream_Start(music->data.wave);
break;
#endif
#ifdef MODPLUG_MUSIC
case MUS_MODPLUG:
/* can't set volume until file is loaded, so finally set it now */
music_internal_initialize_volume();
modplug_play(music->data.modplug);
break;
#endif
#ifdef MOD_MUSIC
case MUS_MOD:
MOD_play(music->data.module);
/* Player_SetVolume() does nothing before Player_Start() */
music_internal_initialize_volume();
break;
#endif
#ifdef MID_MUSIC
case MUS_MID:
#ifdef USE_NATIVE_MIDI
if ( native_midi_ok ) {
native_midi_start(music->data.nativemidi, music_loops);
goto skip;
}
#endif
#ifdef USE_FLUIDSYNTH_MIDI
if (fluidsynth_ok ) {
fluidsynth_start(music->data.fluidsynthmidi);
goto skip;
}
#endif
#ifdef USE_TIMIDITY_MIDI
if ( timidity_ok ) {
Timidity_Start(music->data.midi);
goto skip;
}
#endif
break;
#endif
#ifdef OGG_MUSIC
case MUS_OGG:
OGG_play(music->data.ogg);
break;
#endif
#ifdef FLAC_MUSIC
case MUS_FLAC:
FLAC_play(music->data.flac);
break;
#endif
#ifdef MP3_MUSIC
case MUS_MP3:
smpeg.SMPEG_enableaudio(music->data.mp3,1);
smpeg.SMPEG_enablevideo(music->data.mp3,0);
smpeg.SMPEG_play(music_playing->data.mp3);
break;
#endif
#ifdef MP3_MAD_MUSIC
case MUS_MP3_MAD:
mad_start(music->data.mp3_mad);
break;
#endif
default:
Mix_SetError("Can't play unknown music type");
retval = -1;
break;
}
skip:
/* Set the playback position, note any errors if an offset is used */
if ( retval == 0 ) {
if ( position > 0.0 ) {
if ( music_internal_position(position) < 0 ) {
Mix_SetError("Position not implemented for music type");
retval = -1;
}
} else {
music_internal_position(0.0);
}
}