Commit | Line | Data |
---|---|---|
7840ced1 | 1 | /* sound.c -- sound support. |
0b5538bd | 2 | Copyright (C) 1998, 1999, 2001, 2002, 2003, 2004, |
aaef169d | 3 | 2005, 2006 Free Software Foundation, Inc. |
7840ced1 GM |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
7840ced1 GM |
21 | |
22 | /* Written by Gerd Moellmann <gerd@gnu.org>. Tested with Luigi's | |
23 | driver on FreeBSD 2.2.7 with a SoundBlaster 16. */ | |
24 | ||
f60ae425 BK |
25 | /* |
26 | Modified by Ben Key <Bkey1@tampabay.rr.com> to add a partial | |
27 | implementation of the play-sound specification for Windows. | |
28 | ||
29 | Notes: | |
30 | In the Windows implementation of play-sound-internal only the | |
31 | :file and :volume keywords are supported. The :device keyword, | |
32 | if present, is ignored. The :data keyword, if present, will | |
33 | cause an error to be generated. | |
34 | ||
35 | The Windows implementation of play-sound is implemented via the | |
36 | Win32 API functions mciSendString, waveOutGetVolume, and | |
06c3eeed | 37 | waveOutSetVolume which are exported by Winmm.dll. |
f60ae425 BK |
38 | */ |
39 | ||
7840ced1 GM |
40 | #include <config.h> |
41 | ||
42 | #if defined HAVE_SOUND | |
43 | ||
f60ae425 | 44 | /* BEGIN: Common Includes */ |
7840ced1 GM |
45 | #include <fcntl.h> |
46 | #include <unistd.h> | |
47 | #include <sys/types.h> | |
7840ced1 | 48 | #include <errno.h> |
53fab6e2 GM |
49 | #include "lisp.h" |
50 | #include "dispextern.h" | |
51 | #include "atimer.h" | |
bb6e8cee GM |
52 | #include <signal.h> |
53 | #include "syssignal.h" | |
f60ae425 BK |
54 | /* END: Common Includes */ |
55 | ||
56 | ||
57 | /* BEGIN: Non Windows Includes */ | |
58 | #ifndef WINDOWSNT | |
7840ced1 | 59 | |
502150e5 PJ |
60 | #ifndef MSDOS |
61 | #include <sys/ioctl.h> | |
62 | #endif | |
63 | ||
7840ced1 GM |
64 | /* FreeBSD has machine/soundcard.h. Voxware sound driver docs mention |
65 | sys/soundcard.h. So, let's try whatever's there. */ | |
66 | ||
67 | #ifdef HAVE_MACHINE_SOUNDCARD_H | |
68 | #include <machine/soundcard.h> | |
69 | #endif | |
70 | #ifdef HAVE_SYS_SOUNDCARD_H | |
71 | #include <sys/soundcard.h> | |
72 | #endif | |
80fcd514 | 73 | #ifdef HAVE_SOUNDCARD_H |
80fcd514 KR |
74 | #include <soundcard.h> |
75 | #endif | |
2d2643f6 JD |
76 | #ifdef HAVE_ALSA |
77 | #include <asoundlib.h> | |
78 | #endif | |
79 | ||
f60ae425 BK |
80 | /* END: Non Windows Includes */ |
81 | ||
82 | #else /* WINDOWSNT */ | |
83 | ||
84 | /* BEGIN: Windows Specific Includes */ | |
85 | #include <stdio.h> | |
86 | #include <stdlib.h> | |
87 | #include <string.h> | |
88 | #include <limits.h> | |
89 | #include <windows.h> | |
90 | #include <mmsystem.h> | |
91 | /* END: Windows Specific Includes */ | |
92 | ||
93 | #endif /* WINDOWSNT */ | |
94 | ||
95 | /* BEGIN: Common Definitions */ | |
96 | #define abs(X) ((X) < 0 ? -(X) : (X)) | |
97 | ||
98 | /* Symbols. */ | |
99 | ||
100 | extern Lisp_Object QCfile, QCdata; | |
101 | Lisp_Object QCvolume, QCdevice; | |
102 | Lisp_Object Qsound; | |
103 | Lisp_Object Qplay_sound_functions; | |
104 | ||
105 | /* Indices of attributes in a sound attributes vector. */ | |
106 | ||
107 | enum sound_attr | |
108 | { | |
109 | SOUND_FILE, | |
110 | SOUND_DATA, | |
111 | SOUND_DEVICE, | |
112 | SOUND_VOLUME, | |
113 | SOUND_ATTR_SENTINEL | |
114 | }; | |
115 | ||
01d09305 DN |
116 | static void alsa_sound_perror P_ ((char *, int)) NO_RETURN; |
117 | static void sound_perror P_ ((char *)) NO_RETURN; | |
f60ae425 BK |
118 | static void sound_warning P_ ((char *)); |
119 | static int parse_sound P_ ((Lisp_Object, Lisp_Object *)); | |
120 | ||
121 | /* END: Common Definitions */ | |
122 | ||
123 | /* BEGIN: Non Windows Definitions */ | |
124 | #ifndef WINDOWSNT | |
80fcd514 KR |
125 | |
126 | #ifndef DEFAULT_SOUND_DEVICE | |
127 | #define DEFAULT_SOUND_DEVICE "/dev/dsp" | |
128 | #endif | |
2d2643f6 JD |
129 | #ifndef DEFAULT_ALSA_SOUND_DEVICE |
130 | #define DEFAULT_ALSA_SOUND_DEVICE "default" | |
131 | #endif | |
7840ced1 | 132 | |
7840ced1 GM |
133 | |
134 | /* Structure forward declarations. */ | |
135 | ||
d1299cde | 136 | struct sound; |
7840ced1 GM |
137 | struct sound_device; |
138 | ||
139 | /* The file header of RIFF-WAVE files (*.wav). Files are always in | |
140 | little-endian byte-order. */ | |
141 | ||
142 | struct wav_header | |
143 | { | |
144 | u_int32_t magic; | |
145 | u_int32_t length; | |
146 | u_int32_t chunk_type; | |
147 | u_int32_t chunk_format; | |
148 | u_int32_t chunk_length; | |
149 | u_int16_t format; | |
150 | u_int16_t channels; | |
151 | u_int32_t sample_rate; | |
152 | u_int32_t bytes_per_second; | |
153 | u_int16_t sample_size; | |
154 | u_int16_t precision; | |
155 | u_int32_t chunk_data; | |
156 | u_int32_t data_length; | |
157 | }; | |
158 | ||
159 | /* The file header of Sun adio files (*.au). Files are always in | |
160 | big-endian byte-order. */ | |
161 | ||
162 | struct au_header | |
163 | { | |
164 | /* ASCII ".snd" */ | |
165 | u_int32_t magic_number; | |
a4ff5d67 | 166 | |
7840ced1 GM |
167 | /* Offset of data part from start of file. Minimum value is 24. */ |
168 | u_int32_t data_offset; | |
a4ff5d67 | 169 | |
7840ced1 GM |
170 | /* Size of data part, 0xffffffff if unknown. */ |
171 | u_int32_t data_size; | |
172 | ||
173 | /* Data encoding format. | |
174 | 1 8-bit ISDN u-law | |
175 | 2 8-bit linear PCM (REF-PCM) | |
176 | 3 16-bit linear PCM | |
177 | 4 24-bit linear PCM | |
178 | 5 32-bit linear PCM | |
179 | 6 32-bit IEEE floating-point | |
180 | 7 64-bit IEEE floating-point | |
181 | 23 8-bit u-law compressed using CCITT 0.721 ADPCM voice data | |
182 | encoding scheme. */ | |
183 | u_int32_t encoding; | |
184 | ||
185 | /* Number of samples per second. */ | |
186 | u_int32_t sample_rate; | |
187 | ||
188 | /* Number of interleaved channels. */ | |
189 | u_int32_t channels; | |
190 | }; | |
191 | ||
192 | /* Maximum of all sound file headers sizes. */ | |
193 | ||
194 | #define MAX_SOUND_HEADER_BYTES \ | |
195 | max (sizeof (struct wav_header), sizeof (struct au_header)) | |
196 | ||
197 | /* Interface structure for sound devices. */ | |
198 | ||
199 | struct sound_device | |
200 | { | |
201 | /* The name of the device or null meaning use a default device name. */ | |
202 | char *file; | |
203 | ||
204 | /* File descriptor of the device. */ | |
205 | int fd; | |
206 | ||
207 | /* Device-dependent format. */ | |
208 | int format; | |
209 | ||
210 | /* Volume (0..100). Zero means unspecified. */ | |
211 | int volume; | |
212 | ||
213 | /* Sample size. */ | |
214 | int sample_size; | |
215 | ||
216 | /* Sample rate. */ | |
217 | int sample_rate; | |
218 | ||
219 | /* Bytes per second. */ | |
220 | int bps; | |
221 | ||
222 | /* 1 = mono, 2 = stereo, 0 = don't set. */ | |
223 | int channels; | |
a4ff5d67 | 224 | |
7840ced1 GM |
225 | /* Open device SD. */ |
226 | void (* open) P_ ((struct sound_device *sd)); | |
227 | ||
228 | /* Close device SD. */ | |
229 | void (* close) P_ ((struct sound_device *sd)); | |
230 | ||
231 | /* Configure SD accoring to device-dependent parameters. */ | |
232 | void (* configure) P_ ((struct sound_device *device)); | |
a4ff5d67 | 233 | |
d1299cde | 234 | /* Choose a device-dependent format for outputting sound S. */ |
7840ced1 | 235 | void (* choose_format) P_ ((struct sound_device *sd, |
d1299cde | 236 | struct sound *s)); |
7840ced1 | 237 | |
2d2643f6 JD |
238 | /* Return a preferred data size in bytes to be sent to write (below) |
239 | each time. 2048 is used if this is NULL. */ | |
240 | int (* period_size) P_ ((struct sound_device *sd)); | |
241 | ||
7840ced1 | 242 | /* Write NYBTES bytes from BUFFER to device SD. */ |
dca0fc1c KR |
243 | void (* write) P_ ((struct sound_device *sd, const char *buffer, |
244 | int nbytes)); | |
7840ced1 GM |
245 | |
246 | /* A place for devices to store additional data. */ | |
247 | void *data; | |
248 | }; | |
249 | ||
250 | /* An enumerator for each supported sound file type. */ | |
251 | ||
252 | enum sound_type | |
253 | { | |
254 | RIFF, | |
255 | SUN_AUDIO | |
256 | }; | |
257 | ||
258 | /* Interface structure for sound files. */ | |
259 | ||
d1299cde | 260 | struct sound |
7840ced1 GM |
261 | { |
262 | /* The type of the file. */ | |
263 | enum sound_type type; | |
264 | ||
d1299cde | 265 | /* File descriptor of a sound file. */ |
7840ced1 GM |
266 | int fd; |
267 | ||
d1299cde GM |
268 | /* Pointer to sound file header. This contains header_size bytes |
269 | read from the start of a sound file. */ | |
7840ced1 GM |
270 | char *header; |
271 | ||
d1299cde GM |
272 | /* Number of bytes raed from sound file. This is always <= |
273 | MAX_SOUND_HEADER_BYTES. */ | |
274 | int header_size; | |
275 | ||
276 | /* Sound data, if a string. */ | |
277 | Lisp_Object data; | |
278 | ||
279 | /* Play sound file S on device SD. */ | |
a4ff5d67 | 280 | void (* play) P_ ((struct sound *s, struct sound_device *sd)); |
7840ced1 GM |
281 | }; |
282 | ||
14e415e7 | 283 | /* These are set during `play-sound-internal' so that sound_cleanup has |
7840ced1 GM |
284 | access to them. */ |
285 | ||
d1299cde GM |
286 | struct sound_device *current_sound_device; |
287 | struct sound *current_sound; | |
7840ced1 GM |
288 | |
289 | /* Function prototypes. */ | |
290 | ||
291 | static void vox_open P_ ((struct sound_device *)); | |
292 | static void vox_configure P_ ((struct sound_device *)); | |
293 | static void vox_close P_ ((struct sound_device *sd)); | |
d1299cde | 294 | static void vox_choose_format P_ ((struct sound_device *, struct sound *)); |
2d2643f6 | 295 | static int vox_init P_ ((struct sound_device *)); |
dca0fc1c | 296 | static void vox_write P_ ((struct sound_device *, const char *, int)); |
d1299cde | 297 | static void find_sound_type P_ ((struct sound *)); |
7840ced1 GM |
298 | static u_int32_t le2hl P_ ((u_int32_t)); |
299 | static u_int16_t le2hs P_ ((u_int16_t)); | |
300 | static u_int32_t be2hl P_ ((u_int32_t)); | |
d1299cde GM |
301 | static int wav_init P_ ((struct sound *)); |
302 | static void wav_play P_ ((struct sound *, struct sound_device *)); | |
303 | static int au_init P_ ((struct sound *)); | |
304 | static void au_play P_ ((struct sound *, struct sound_device *)); | |
7840ced1 | 305 | |
9680b9d0 GM |
306 | #if 0 /* Currently not used. */ |
307 | static u_int16_t be2hs P_ ((u_int16_t)); | |
308 | #endif | |
309 | ||
f60ae425 BK |
310 | /* END: Non Windows Definitions */ |
311 | #else /* WINDOWSNT */ | |
312 | ||
313 | /* BEGIN: Windows Specific Definitions */ | |
314 | static int do_play_sound P_ ((const char *, unsigned long)); | |
315 | /* | |
316 | END: Windows Specific Definitions */ | |
317 | #endif /* WINDOWSNT */ | |
7840ced1 GM |
318 | |
319 | \f | |
320 | /*********************************************************************** | |
321 | General | |
322 | ***********************************************************************/ | |
323 | ||
f60ae425 BK |
324 | /* BEGIN: Common functions */ |
325 | ||
7840ced1 GM |
326 | /* Like perror, but signals an error. */ |
327 | ||
328 | static void | |
329 | sound_perror (msg) | |
330 | char *msg; | |
331 | { | |
3297e2a1 AS |
332 | int saved_errno = errno; |
333 | ||
62725a92 GM |
334 | turn_on_atimers (1); |
335 | #ifdef SIGIO | |
336 | sigunblock (sigmask (SIGIO)); | |
337 | #endif | |
3297e2a1 AS |
338 | if (saved_errno != 0) |
339 | error ("%s: %s", msg, strerror (saved_errno)); | |
62725a92 GM |
340 | else |
341 | error ("%s", msg); | |
342 | } | |
343 | ||
344 | ||
345 | /* Display a warning message. */ | |
346 | ||
347 | static void | |
348 | sound_warning (msg) | |
349 | char *msg; | |
350 | { | |
351 | message (msg); | |
7840ced1 GM |
352 | } |
353 | ||
354 | ||
355 | /* Parse sound specification SOUND, and fill ATTRS with what is | |
356 | found. Value is non-zero if SOUND Is a valid sound specification. | |
357 | A valid sound specification is a list starting with the symbol | |
358 | `sound'. The rest of the list is a property list which may | |
359 | contain the following key/value pairs: | |
360 | ||
361 | - `:file FILE' | |
362 | ||
363 | FILE is the sound file to play. If it isn't an absolute name, | |
364 | it's searched under `data-directory'. | |
365 | ||
d1299cde GM |
366 | - `:data DATA' |
367 | ||
368 | DATA is a string containing sound data. Either :file or :data | |
369 | may be present, but not both. | |
370 | ||
7840ced1 GM |
371 | - `:device DEVICE' |
372 | ||
373 | DEVICE is the name of the device to play on, e.g. "/dev/dsp2". | |
374 | If not specified, a default device is used. | |
375 | ||
376 | - `:volume VOL' | |
377 | ||
2a53558d GM |
378 | VOL must be an integer in the range [0, 100], or a float in the |
379 | range [0, 1]. */ | |
7840ced1 GM |
380 | |
381 | static int | |
382 | parse_sound (sound, attrs) | |
383 | Lisp_Object sound; | |
384 | Lisp_Object *attrs; | |
385 | { | |
386 | /* SOUND must be a list starting with the symbol `sound'. */ | |
387 | if (!CONSP (sound) || !EQ (XCAR (sound), Qsound)) | |
388 | return 0; | |
389 | ||
390 | sound = XCDR (sound); | |
391 | attrs[SOUND_FILE] = Fplist_get (sound, QCfile); | |
d1299cde | 392 | attrs[SOUND_DATA] = Fplist_get (sound, QCdata); |
7840ced1 GM |
393 | attrs[SOUND_DEVICE] = Fplist_get (sound, QCdevice); |
394 | attrs[SOUND_VOLUME] = Fplist_get (sound, QCvolume); | |
395 | ||
f60ae425 | 396 | #ifndef WINDOWSNT |
d1299cde GM |
397 | /* File name or data must be specified. */ |
398 | if (!STRINGP (attrs[SOUND_FILE]) | |
399 | && !STRINGP (attrs[SOUND_DATA])) | |
7840ced1 | 400 | return 0; |
f60ae425 BK |
401 | #else /* WINDOWSNT */ |
402 | /* | |
403 | Data is not supported in Windows. Therefore a | |
404 | File name MUST be supplied. | |
405 | */ | |
406 | if (!STRINGP (attrs[SOUND_FILE])) | |
407 | { | |
408 | return 0; | |
409 | } | |
410 | #endif /* WINDOWSNT */ | |
7840ced1 GM |
411 | |
412 | /* Volume must be in the range 0..100 or unspecified. */ | |
413 | if (!NILP (attrs[SOUND_VOLUME])) | |
414 | { | |
2a53558d GM |
415 | if (INTEGERP (attrs[SOUND_VOLUME])) |
416 | { | |
417 | if (XINT (attrs[SOUND_VOLUME]) < 0 | |
418 | || XINT (attrs[SOUND_VOLUME]) > 100) | |
419 | return 0; | |
420 | } | |
421 | else if (FLOATP (attrs[SOUND_VOLUME])) | |
422 | { | |
423 | if (XFLOAT_DATA (attrs[SOUND_VOLUME]) < 0 | |
424 | || XFLOAT_DATA (attrs[SOUND_VOLUME]) > 1) | |
425 | return 0; | |
426 | } | |
427 | else | |
7840ced1 GM |
428 | return 0; |
429 | } | |
430 | ||
f60ae425 | 431 | #ifndef WINDOWSNT |
7840ced1 GM |
432 | /* Device must be a string or unspecified. */ |
433 | if (!NILP (attrs[SOUND_DEVICE]) | |
434 | && !STRINGP (attrs[SOUND_DEVICE])) | |
435 | return 0; | |
f60ae425 BK |
436 | #endif /* WINDOWSNT */ |
437 | /* | |
438 | Since device is ignored in Windows, it does not matter | |
439 | what it is. | |
440 | */ | |
7840ced1 GM |
441 | return 1; |
442 | } | |
443 | ||
f60ae425 BK |
444 | /* END: Common functions */ |
445 | ||
446 | /* BEGIN: Non Windows functions */ | |
447 | #ifndef WINDOWSNT | |
7840ced1 GM |
448 | |
449 | /* Find out the type of the sound file whose file descriptor is FD. | |
d1299cde | 450 | S is the sound file structure to fill in. */ |
7840ced1 GM |
451 | |
452 | static void | |
d1299cde GM |
453 | find_sound_type (s) |
454 | struct sound *s; | |
7840ced1 | 455 | { |
d1299cde GM |
456 | if (!wav_init (s) && !au_init (s)) |
457 | error ("Unknown sound format"); | |
7840ced1 GM |
458 | } |
459 | ||
460 | ||
14e415e7 | 461 | /* Function installed by play-sound-internal with record_unwind_protect. */ |
7840ced1 GM |
462 | |
463 | static Lisp_Object | |
464 | sound_cleanup (arg) | |
465 | Lisp_Object arg; | |
466 | { | |
8e6ec322 RS |
467 | if (current_sound_device->close) |
468 | current_sound_device->close (current_sound_device); | |
469 | if (current_sound->fd > 0) | |
470 | emacs_close (current_sound->fd); | |
471 | free (current_sound_device); | |
472 | free (current_sound); | |
3887b449 GM |
473 | |
474 | return Qnil; | |
7840ced1 GM |
475 | } |
476 | ||
7840ced1 GM |
477 | /*********************************************************************** |
478 | Byte-order Conversion | |
479 | ***********************************************************************/ | |
480 | ||
481 | /* Convert 32-bit value VALUE which is in little-endian byte-order | |
482 | to host byte-order. */ | |
483 | ||
484 | static u_int32_t | |
485 | le2hl (value) | |
486 | u_int32_t value; | |
487 | { | |
488 | #ifdef WORDS_BIG_ENDIAN | |
489 | unsigned char *p = (unsigned char *) &value; | |
490 | value = p[0] + (p[1] << 8) + (p[2] << 16) + (p[3] << 24); | |
491 | #endif | |
492 | return value; | |
493 | } | |
494 | ||
495 | ||
496 | /* Convert 16-bit value VALUE which is in little-endian byte-order | |
497 | to host byte-order. */ | |
498 | ||
499 | static u_int16_t | |
500 | le2hs (value) | |
501 | u_int16_t value; | |
502 | { | |
503 | #ifdef WORDS_BIG_ENDIAN | |
504 | unsigned char *p = (unsigned char *) &value; | |
505 | value = p[0] + (p[1] << 8); | |
506 | #endif | |
507 | return value; | |
508 | } | |
509 | ||
510 | ||
511 | /* Convert 32-bit value VALUE which is in big-endian byte-order | |
512 | to host byte-order. */ | |
513 | ||
514 | static u_int32_t | |
515 | be2hl (value) | |
516 | u_int32_t value; | |
517 | { | |
518 | #ifndef WORDS_BIG_ENDIAN | |
519 | unsigned char *p = (unsigned char *) &value; | |
520 | value = p[3] + (p[2] << 8) + (p[1] << 16) + (p[0] << 24); | |
521 | #endif | |
522 | return value; | |
523 | } | |
524 | ||
525 | ||
9680b9d0 GM |
526 | #if 0 /* Currently not used. */ |
527 | ||
7840ced1 GM |
528 | /* Convert 16-bit value VALUE which is in big-endian byte-order |
529 | to host byte-order. */ | |
530 | ||
531 | static u_int16_t | |
532 | be2hs (value) | |
533 | u_int16_t value; | |
534 | { | |
535 | #ifndef WORDS_BIG_ENDIAN | |
536 | unsigned char *p = (unsigned char *) &value; | |
537 | value = p[1] + (p[0] << 8); | |
538 | #endif | |
539 | return value; | |
540 | } | |
541 | ||
9680b9d0 | 542 | #endif /* 0 */ |
7840ced1 | 543 | |
7840ced1 GM |
544 | /*********************************************************************** |
545 | RIFF-WAVE (*.wav) | |
546 | ***********************************************************************/ | |
547 | ||
d1299cde | 548 | /* Try to initialize sound file S from S->header. S->header |
7840ced1 GM |
549 | contains the first MAX_SOUND_HEADER_BYTES number of bytes from the |
550 | sound file. If the file is a WAV-format file, set up interface | |
d1299cde | 551 | functions in S and convert header fields to host byte-order. |
7840ced1 GM |
552 | Value is non-zero if the file is a WAV file. */ |
553 | ||
554 | static int | |
d1299cde GM |
555 | wav_init (s) |
556 | struct sound *s; | |
7840ced1 | 557 | { |
d1299cde GM |
558 | struct wav_header *header = (struct wav_header *) s->header; |
559 | ||
560 | if (s->header_size < sizeof *header | |
561 | || bcmp (s->header, "RIFF", 4) != 0) | |
7840ced1 GM |
562 | return 0; |
563 | ||
564 | /* WAV files are in little-endian order. Convert the header | |
565 | if on a big-endian machine. */ | |
566 | header->magic = le2hl (header->magic); | |
567 | header->length = le2hl (header->length); | |
568 | header->chunk_type = le2hl (header->chunk_type); | |
569 | header->chunk_format = le2hl (header->chunk_format); | |
570 | header->chunk_length = le2hl (header->chunk_length); | |
571 | header->format = le2hs (header->format); | |
572 | header->channels = le2hs (header->channels); | |
573 | header->sample_rate = le2hl (header->sample_rate); | |
574 | header->bytes_per_second = le2hl (header->bytes_per_second); | |
575 | header->sample_size = le2hs (header->sample_size); | |
576 | header->precision = le2hs (header->precision); | |
577 | header->chunk_data = le2hl (header->chunk_data); | |
578 | header->data_length = le2hl (header->data_length); | |
579 | ||
580 | /* Set up the interface functions for WAV. */ | |
d1299cde GM |
581 | s->type = RIFF; |
582 | s->play = wav_play; | |
7840ced1 GM |
583 | |
584 | return 1; | |
a4ff5d67 | 585 | } |
7840ced1 GM |
586 | |
587 | ||
d1299cde | 588 | /* Play RIFF-WAVE audio file S on sound device SD. */ |
7840ced1 GM |
589 | |
590 | static void | |
d1299cde GM |
591 | wav_play (s, sd) |
592 | struct sound *s; | |
7840ced1 GM |
593 | struct sound_device *sd; |
594 | { | |
d1299cde | 595 | struct wav_header *header = (struct wav_header *) s->header; |
7840ced1 GM |
596 | |
597 | /* Let the device choose a suitable device-dependent format | |
598 | for the file. */ | |
d1299cde | 599 | sd->choose_format (sd, s); |
a4ff5d67 | 600 | |
7840ced1 GM |
601 | /* Configure the device. */ |
602 | sd->sample_size = header->sample_size; | |
603 | sd->sample_rate = header->sample_rate; | |
604 | sd->bps = header->bytes_per_second; | |
605 | sd->channels = header->channels; | |
606 | sd->configure (sd); | |
607 | ||
608 | /* Copy sound data to the device. The WAV file specification is | |
609 | actually more complex. This simple scheme worked with all WAV | |
610 | files I found so far. If someone feels inclined to implement the | |
611 | whole RIFF-WAVE spec, please do. */ | |
d1299cde | 612 | if (STRINGP (s->data)) |
d5db4077 KR |
613 | sd->write (sd, SDATA (s->data) + sizeof *header, |
614 | SBYTES (s->data) - sizeof *header); | |
d1299cde GM |
615 | else |
616 | { | |
617 | char *buffer; | |
618 | int nbytes; | |
2d2643f6 | 619 | int blksize = sd->period_size ? sd->period_size (sd) : 2048; |
a4ff5d67 | 620 | |
d1299cde GM |
621 | buffer = (char *) alloca (blksize); |
622 | lseek (s->fd, sizeof *header, SEEK_SET); | |
a4ff5d67 | 623 | |
d1299cde GM |
624 | while ((nbytes = emacs_read (s->fd, buffer, blksize)) > 0) |
625 | sd->write (sd, buffer, nbytes); | |
7840ced1 | 626 | |
d1299cde | 627 | if (nbytes < 0) |
62725a92 | 628 | sound_perror ("Error reading sound file"); |
d1299cde | 629 | } |
7840ced1 GM |
630 | } |
631 | ||
632 | ||
7840ced1 GM |
633 | /*********************************************************************** |
634 | Sun Audio (*.au) | |
635 | ***********************************************************************/ | |
636 | ||
a4ff5d67 | 637 | /* Sun audio file encodings. */ |
7840ced1 GM |
638 | |
639 | enum au_encoding | |
640 | { | |
641 | AU_ENCODING_ULAW_8 = 1, | |
642 | AU_ENCODING_8, | |
643 | AU_ENCODING_16, | |
644 | AU_ENCODING_24, | |
645 | AU_ENCODING_32, | |
646 | AU_ENCODING_IEEE32, | |
647 | AU_ENCODING_IEEE64, | |
2d2643f6 JD |
648 | AU_COMPRESSED = 23, |
649 | AU_ENCODING_ALAW_8 = 27 | |
7840ced1 GM |
650 | }; |
651 | ||
652 | ||
d1299cde | 653 | /* Try to initialize sound file S from S->header. S->header |
7840ced1 GM |
654 | contains the first MAX_SOUND_HEADER_BYTES number of bytes from the |
655 | sound file. If the file is a AU-format file, set up interface | |
d1299cde | 656 | functions in S and convert header fields to host byte-order. |
7840ced1 GM |
657 | Value is non-zero if the file is an AU file. */ |
658 | ||
659 | static int | |
d1299cde GM |
660 | au_init (s) |
661 | struct sound *s; | |
7840ced1 | 662 | { |
d1299cde | 663 | struct au_header *header = (struct au_header *) s->header; |
a4ff5d67 | 664 | |
d1299cde GM |
665 | if (s->header_size < sizeof *header |
666 | || bcmp (s->header, ".snd", 4) != 0) | |
7840ced1 | 667 | return 0; |
a4ff5d67 | 668 | |
7840ced1 GM |
669 | header->magic_number = be2hl (header->magic_number); |
670 | header->data_offset = be2hl (header->data_offset); | |
671 | header->data_size = be2hl (header->data_size); | |
672 | header->encoding = be2hl (header->encoding); | |
673 | header->sample_rate = be2hl (header->sample_rate); | |
674 | header->channels = be2hl (header->channels); | |
a4ff5d67 | 675 | |
7840ced1 | 676 | /* Set up the interface functions for AU. */ |
d1299cde GM |
677 | s->type = SUN_AUDIO; |
678 | s->play = au_play; | |
7840ced1 GM |
679 | |
680 | return 1; | |
681 | } | |
682 | ||
683 | ||
d1299cde | 684 | /* Play Sun audio file S on sound device SD. */ |
7840ced1 GM |
685 | |
686 | static void | |
d1299cde GM |
687 | au_play (s, sd) |
688 | struct sound *s; | |
7840ced1 GM |
689 | struct sound_device *sd; |
690 | { | |
d1299cde | 691 | struct au_header *header = (struct au_header *) s->header; |
7840ced1 GM |
692 | |
693 | sd->sample_size = 0; | |
694 | sd->sample_rate = header->sample_rate; | |
695 | sd->bps = 0; | |
696 | sd->channels = header->channels; | |
d1299cde | 697 | sd->choose_format (sd, s); |
7840ced1 | 698 | sd->configure (sd); |
d1299cde GM |
699 | |
700 | if (STRINGP (s->data)) | |
d5db4077 KR |
701 | sd->write (sd, SDATA (s->data) + header->data_offset, |
702 | SBYTES (s->data) - header->data_offset); | |
d1299cde GM |
703 | else |
704 | { | |
2d2643f6 | 705 | int blksize = sd->period_size ? sd->period_size (sd) : 2048; |
d1299cde GM |
706 | char *buffer; |
707 | int nbytes; | |
a4ff5d67 | 708 | |
d1299cde GM |
709 | /* Seek */ |
710 | lseek (s->fd, header->data_offset, SEEK_SET); | |
a4ff5d67 | 711 | |
d1299cde GM |
712 | /* Copy sound data to the device. */ |
713 | buffer = (char *) alloca (blksize); | |
714 | while ((nbytes = emacs_read (s->fd, buffer, blksize)) > 0) | |
715 | sd->write (sd, buffer, nbytes); | |
a4ff5d67 | 716 | |
d1299cde | 717 | if (nbytes < 0) |
62725a92 | 718 | sound_perror ("Error reading sound file"); |
d1299cde | 719 | } |
7840ced1 GM |
720 | } |
721 | ||
722 | ||
7840ced1 GM |
723 | /*********************************************************************** |
724 | Voxware Driver Interface | |
725 | ***********************************************************************/ | |
726 | ||
727 | /* This driver is available on GNU/Linux, and the free BSDs. FreeBSD | |
728 | has a compatible own driver aka Luigi's driver. */ | |
729 | ||
730 | ||
731 | /* Open device SD. If SD->file is non-null, open that device, | |
732 | otherwise use a default device name. */ | |
733 | ||
734 | static void | |
735 | vox_open (sd) | |
736 | struct sound_device *sd; | |
737 | { | |
738 | char *file; | |
a4ff5d67 | 739 | |
7840ced1 GM |
740 | /* Open the sound device. Default is /dev/dsp. */ |
741 | if (sd->file) | |
742 | file = sd->file; | |
743 | else | |
80fcd514 | 744 | file = DEFAULT_SOUND_DEVICE; |
a4ff5d67 | 745 | |
68c45bf0 | 746 | sd->fd = emacs_open (file, O_WRONLY, 0); |
7840ced1 GM |
747 | if (sd->fd < 0) |
748 | sound_perror (file); | |
749 | } | |
750 | ||
751 | ||
752 | /* Configure device SD from parameters in it. */ | |
753 | ||
754 | static void | |
755 | vox_configure (sd) | |
756 | struct sound_device *sd; | |
757 | { | |
28fcb7dc | 758 | int val; |
a4ff5d67 | 759 | |
7840ced1 GM |
760 | xassert (sd->fd >= 0); |
761 | ||
bb6e8cee GM |
762 | /* On GNU/Linux, it seems that the device driver doesn't like to be |
763 | interrupted by a signal. Block the ones we know to cause | |
764 | troubles. */ | |
b5cb1ada | 765 | turn_on_atimers (0); |
bb6e8cee GM |
766 | #ifdef SIGIO |
767 | sigblock (sigmask (SIGIO)); | |
768 | #endif | |
b5cb1ada | 769 | |
28fcb7dc GM |
770 | val = sd->format; |
771 | if (ioctl (sd->fd, SNDCTL_DSP_SETFMT, &sd->format) < 0 | |
772 | || val != sd->format) | |
62725a92 | 773 | sound_perror ("Could not set sound format"); |
7840ced1 | 774 | |
28fcb7dc GM |
775 | val = sd->channels != 1; |
776 | if (ioctl (sd->fd, SNDCTL_DSP_STEREO, &val) < 0 | |
777 | || val != (sd->channels != 1)) | |
62725a92 | 778 | sound_perror ("Could not set stereo/mono"); |
7840ced1 | 779 | |
28fcb7dc GM |
780 | /* I think bps and sampling_rate are the same, but who knows. |
781 | Check this. and use SND_DSP_SPEED for both. */ | |
782 | if (sd->sample_rate > 0) | |
783 | { | |
784 | val = sd->sample_rate; | |
62725a92 GM |
785 | if (ioctl (sd->fd, SNDCTL_DSP_SPEED, &sd->sample_rate) < 0) |
786 | sound_perror ("Could not set sound speed"); | |
787 | else if (val != sd->sample_rate) | |
788 | sound_warning ("Could not set sample rate"); | |
28fcb7dc | 789 | } |
7840ced1 | 790 | |
3887b449 GM |
791 | if (sd->volume > 0) |
792 | { | |
793 | int volume = sd->volume & 0xff; | |
794 | volume |= volume << 8; | |
28fcb7dc GM |
795 | /* This may fail if there is no mixer. Ignore the failure. */ |
796 | ioctl (sd->fd, SOUND_MIXER_WRITE_PCM, &volume); | |
3887b449 | 797 | } |
a4ff5d67 | 798 | |
b5cb1ada | 799 | turn_on_atimers (1); |
bb6e8cee GM |
800 | #ifdef SIGIO |
801 | sigunblock (sigmask (SIGIO)); | |
802 | #endif | |
7840ced1 GM |
803 | } |
804 | ||
805 | ||
806 | /* Close device SD if it is open. */ | |
807 | ||
808 | static void | |
809 | vox_close (sd) | |
810 | struct sound_device *sd; | |
811 | { | |
812 | if (sd->fd >= 0) | |
813 | { | |
bb6e8cee GM |
814 | /* On GNU/Linux, it seems that the device driver doesn't like to |
815 | be interrupted by a signal. Block the ones we know to cause | |
816 | troubles. */ | |
817 | #ifdef SIGIO | |
818 | sigblock (sigmask (SIGIO)); | |
819 | #endif | |
b5cb1ada | 820 | turn_on_atimers (0); |
a4ff5d67 | 821 | |
bb6e8cee | 822 | /* Flush sound data, and reset the device. */ |
7840ced1 | 823 | ioctl (sd->fd, SNDCTL_DSP_SYNC, NULL); |
a4ff5d67 | 824 | |
b5cb1ada | 825 | turn_on_atimers (1); |
bb6e8cee GM |
826 | #ifdef SIGIO |
827 | sigunblock (sigmask (SIGIO)); | |
828 | #endif | |
7840ced1 GM |
829 | |
830 | /* Close the device. */ | |
68c45bf0 | 831 | emacs_close (sd->fd); |
7840ced1 GM |
832 | sd->fd = -1; |
833 | } | |
834 | } | |
835 | ||
836 | ||
d1299cde | 837 | /* Choose device-dependent format for device SD from sound file S. */ |
7840ced1 GM |
838 | |
839 | static void | |
d1299cde | 840 | vox_choose_format (sd, s) |
7840ced1 | 841 | struct sound_device *sd; |
d1299cde | 842 | struct sound *s; |
7840ced1 | 843 | { |
d1299cde | 844 | if (s->type == RIFF) |
7840ced1 | 845 | { |
d1299cde | 846 | struct wav_header *h = (struct wav_header *) s->header; |
7840ced1 GM |
847 | if (h->precision == 8) |
848 | sd->format = AFMT_U8; | |
849 | else if (h->precision == 16) | |
850 | sd->format = AFMT_S16_LE; | |
851 | else | |
852 | error ("Unsupported WAV file format"); | |
853 | } | |
d1299cde | 854 | else if (s->type == SUN_AUDIO) |
7840ced1 | 855 | { |
d1299cde | 856 | struct au_header *header = (struct au_header *) s->header; |
7840ced1 GM |
857 | switch (header->encoding) |
858 | { | |
859 | case AU_ENCODING_ULAW_8: | |
860 | case AU_ENCODING_IEEE32: | |
861 | case AU_ENCODING_IEEE64: | |
862 | sd->format = AFMT_MU_LAW; | |
863 | break; | |
a4ff5d67 | 864 | |
7840ced1 GM |
865 | case AU_ENCODING_8: |
866 | case AU_ENCODING_16: | |
867 | case AU_ENCODING_24: | |
868 | case AU_ENCODING_32: | |
869 | sd->format = AFMT_S16_LE; | |
870 | break; | |
871 | ||
872 | default: | |
873 | error ("Unsupported AU file format"); | |
874 | } | |
875 | } | |
876 | else | |
877 | abort (); | |
878 | } | |
879 | ||
880 | ||
881 | /* Initialize device SD. Set up the interface functions in the device | |
882 | structure. */ | |
883 | ||
2d2643f6 | 884 | static int |
7840ced1 GM |
885 | vox_init (sd) |
886 | struct sound_device *sd; | |
887 | { | |
2d2643f6 JD |
888 | char *file; |
889 | int fd; | |
890 | ||
891 | /* Open the sound device. Default is /dev/dsp. */ | |
892 | if (sd->file) | |
893 | file = sd->file; | |
894 | else | |
895 | file = DEFAULT_SOUND_DEVICE; | |
896 | fd = emacs_open (file, O_WRONLY, 0); | |
897 | if (fd >= 0) | |
898 | emacs_close (fd); | |
899 | else | |
900 | return 0; | |
901 | ||
7840ced1 GM |
902 | sd->fd = -1; |
903 | sd->open = vox_open; | |
904 | sd->close = vox_close; | |
905 | sd->configure = vox_configure; | |
906 | sd->choose_format = vox_choose_format; | |
907 | sd->write = vox_write; | |
2d2643f6 JD |
908 | sd->period_size = NULL; |
909 | ||
910 | return 1; | |
7840ced1 GM |
911 | } |
912 | ||
7840ced1 GM |
913 | /* Write NBYTES bytes from BUFFER to device SD. */ |
914 | ||
915 | static void | |
916 | vox_write (sd, buffer, nbytes) | |
917 | struct sound_device *sd; | |
dca0fc1c | 918 | const char *buffer; |
7840ced1 GM |
919 | int nbytes; |
920 | { | |
68c45bf0 | 921 | int nwritten = emacs_write (sd->fd, buffer, nbytes); |
7840ced1 | 922 | if (nwritten < 0) |
62725a92 | 923 | sound_perror ("Error writing to sound device"); |
7840ced1 GM |
924 | } |
925 | ||
2d2643f6 JD |
926 | #ifdef HAVE_ALSA |
927 | /*********************************************************************** | |
928 | ALSA Driver Interface | |
929 | ***********************************************************************/ | |
930 | ||
931 | /* This driver is available on GNU/Linux. */ | |
932 | ||
933 | static void | |
934 | alsa_sound_perror (msg, err) | |
935 | char *msg; | |
936 | int err; | |
937 | { | |
938 | error ("%s: %s", msg, snd_strerror (err)); | |
939 | } | |
940 | ||
941 | struct alsa_params | |
942 | { | |
943 | snd_pcm_t *handle; | |
944 | snd_pcm_hw_params_t *hwparams; | |
945 | snd_pcm_sw_params_t *swparams; | |
946 | snd_pcm_uframes_t period_size; | |
947 | }; | |
948 | ||
949 | /* Open device SD. If SD->file is non-null, open that device, | |
950 | otherwise use a default device name. */ | |
951 | ||
952 | static void | |
953 | alsa_open (sd) | |
954 | struct sound_device *sd; | |
955 | { | |
956 | char *file; | |
957 | struct alsa_params *p; | |
958 | int err; | |
959 | ||
960 | /* Open the sound device. Default is "default". */ | |
961 | if (sd->file) | |
962 | file = sd->file; | |
963 | else | |
964 | file = DEFAULT_ALSA_SOUND_DEVICE; | |
965 | ||
966 | p = xmalloc (sizeof (*p)); | |
967 | p->handle = NULL; | |
968 | p->hwparams = NULL; | |
969 | p->swparams = NULL; | |
970 | ||
971 | sd->fd = -1; | |
972 | sd->data = p; | |
973 | ||
974 | ||
3fc7a865 JD |
975 | err = snd_pcm_open (&p->handle, file, SND_PCM_STREAM_PLAYBACK, 0); |
976 | if (err < 0) | |
2d2643f6 JD |
977 | alsa_sound_perror (file, err); |
978 | } | |
979 | ||
980 | static int | |
981 | alsa_period_size (sd) | |
982 | struct sound_device *sd; | |
983 | { | |
984 | struct alsa_params *p = (struct alsa_params *) sd->data; | |
985 | return p->period_size; | |
986 | } | |
987 | ||
988 | static void | |
989 | alsa_configure (sd) | |
990 | struct sound_device *sd; | |
991 | { | |
992 | int val, err, dir; | |
dcc88121 | 993 | unsigned uval; |
2d2643f6 JD |
994 | struct alsa_params *p = (struct alsa_params *) sd->data; |
995 | snd_pcm_uframes_t buffer_size; | |
996 | ||
997 | xassert (p->handle != 0); | |
998 | ||
3fc7a865 JD |
999 | err = snd_pcm_hw_params_malloc (&p->hwparams); |
1000 | if (err < 0) | |
2d2643f6 JD |
1001 | alsa_sound_perror ("Could not allocate hardware parameter structure", err); |
1002 | ||
3fc7a865 JD |
1003 | err = snd_pcm_sw_params_malloc (&p->swparams); |
1004 | if (err < 0) | |
2d2643f6 JD |
1005 | alsa_sound_perror ("Could not allocate software parameter structure", err); |
1006 | ||
3fc7a865 JD |
1007 | err = snd_pcm_hw_params_any (p->handle, p->hwparams); |
1008 | if (err < 0) | |
2d2643f6 JD |
1009 | alsa_sound_perror ("Could not initialize hardware parameter structure", err); |
1010 | ||
3fc7a865 JD |
1011 | err = snd_pcm_hw_params_set_access (p->handle, p->hwparams, |
1012 | SND_PCM_ACCESS_RW_INTERLEAVED); | |
1013 | if (err < 0) | |
2d2643f6 JD |
1014 | alsa_sound_perror ("Could not set access type", err); |
1015 | ||
1016 | val = sd->format; | |
3fc7a865 | 1017 | err = snd_pcm_hw_params_set_format (p->handle, p->hwparams, val); |
ed1f0a45 | 1018 | if (err < 0) |
2d2643f6 JD |
1019 | alsa_sound_perror ("Could not set sound format", err); |
1020 | ||
dcc88121 JD |
1021 | uval = sd->sample_rate; |
1022 | err = snd_pcm_hw_params_set_rate_near (p->handle, p->hwparams, &uval, 0); | |
3fc7a865 | 1023 | if (err < 0) |
2d2643f6 | 1024 | alsa_sound_perror ("Could not set sample rate", err); |
ed1f0a45 | 1025 | |
2d2643f6 | 1026 | val = sd->channels; |
3fc7a865 JD |
1027 | err = snd_pcm_hw_params_set_channels (p->handle, p->hwparams, val); |
1028 | if (err < 0) | |
2d2643f6 JD |
1029 | alsa_sound_perror ("Could not set channel count", err); |
1030 | ||
3fc7a865 JD |
1031 | err = snd_pcm_hw_params (p->handle, p->hwparams); |
1032 | if (err < 0) | |
07a7837c JD |
1033 | alsa_sound_perror ("Could not set parameters", err); |
1034 | ||
2d2643f6 JD |
1035 | |
1036 | err = snd_pcm_hw_params_get_period_size (p->hwparams, &p->period_size, &dir); | |
1037 | if (err < 0) | |
1038 | alsa_sound_perror ("Unable to get period size for playback", err); | |
1039 | ||
1040 | err = snd_pcm_hw_params_get_buffer_size (p->hwparams, &buffer_size); | |
1041 | if (err < 0) | |
1042 | alsa_sound_perror("Unable to get buffer size for playback", err); | |
1043 | ||
2d2643f6 JD |
1044 | err = snd_pcm_sw_params_current (p->handle, p->swparams); |
1045 | if (err < 0) | |
1046 | alsa_sound_perror ("Unable to determine current swparams for playback", | |
1047 | err); | |
1048 | ||
1049 | /* Start the transfer when the buffer is almost full */ | |
1050 | err = snd_pcm_sw_params_set_start_threshold (p->handle, p->swparams, | |
1051 | (buffer_size / p->period_size) | |
1052 | * p->period_size); | |
1053 | if (err < 0) | |
1054 | alsa_sound_perror ("Unable to set start threshold mode for playback", err); | |
1055 | ||
1056 | /* Allow the transfer when at least period_size samples can be processed */ | |
1057 | err = snd_pcm_sw_params_set_avail_min (p->handle, p->swparams, p->period_size); | |
1058 | if (err < 0) | |
1059 | alsa_sound_perror ("Unable to set avail min for playback", err); | |
1060 | ||
1061 | /* Align all transfers to 1 period */ | |
1062 | err = snd_pcm_sw_params_set_xfer_align (p->handle, p->swparams, | |
1063 | p->period_size); | |
1064 | if (err < 0) | |
1065 | alsa_sound_perror ("Unable to set transfer align for playback", err); | |
1066 | ||
1067 | err = snd_pcm_sw_params (p->handle, p->swparams); | |
1068 | if (err < 0) | |
1069 | alsa_sound_perror ("Unable to set sw params for playback\n", err); | |
1070 | ||
1071 | snd_pcm_hw_params_free (p->hwparams); | |
1072 | p->hwparams = NULL; | |
1073 | snd_pcm_sw_params_free (p->swparams); | |
1074 | p->swparams = NULL; | |
ed1f0a45 | 1075 | |
3fc7a865 JD |
1076 | err = snd_pcm_prepare (p->handle); |
1077 | if (err < 0) | |
2d2643f6 | 1078 | alsa_sound_perror ("Could not prepare audio interface for use", err); |
ed1f0a45 | 1079 | |
2d2643f6 JD |
1080 | if (sd->volume > 0) |
1081 | { | |
1082 | int chn; | |
1083 | snd_mixer_t *handle; | |
1084 | snd_mixer_elem_t *e; | |
1085 | char *file = sd->file ? sd->file : DEFAULT_ALSA_SOUND_DEVICE; | |
1086 | ||
1087 | if (snd_mixer_open (&handle, 0) >= 0) | |
1088 | { | |
1089 | if (snd_mixer_attach (handle, file) >= 0 | |
1090 | && snd_mixer_load (handle) >= 0 | |
1091 | && snd_mixer_selem_register (handle, NULL, NULL) >= 0) | |
1092 | for (e = snd_mixer_first_elem (handle); | |
1093 | e; | |
1094 | e = snd_mixer_elem_next (e)) | |
1095 | { | |
1096 | if (snd_mixer_selem_has_playback_volume (e)) | |
1097 | { | |
1098 | long pmin, pmax; | |
1099 | snd_mixer_selem_get_playback_volume_range (e, &pmin, &pmax); | |
1100 | long vol = pmin + (sd->volume * (pmax - pmin)) / 100; | |
ed1f0a45 | 1101 | |
2d2643f6 JD |
1102 | for (chn = 0; chn <= SND_MIXER_SCHN_LAST; chn++) |
1103 | snd_mixer_selem_set_playback_volume (e, chn, vol); | |
1104 | } | |
1105 | } | |
1106 | snd_mixer_close(handle); | |
1107 | } | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | ||
1112 | /* Close device SD if it is open. */ | |
1113 | ||
1114 | static void | |
1115 | alsa_close (sd) | |
1116 | struct sound_device *sd; | |
1117 | { | |
1118 | struct alsa_params *p = (struct alsa_params *) sd->data; | |
1119 | if (p) | |
1120 | { | |
1121 | if (p->hwparams) | |
1122 | snd_pcm_hw_params_free (p->hwparams); | |
1123 | if (p->swparams) | |
1124 | snd_pcm_sw_params_free (p->swparams); | |
1125 | if (p->handle) | |
1126 | { | |
dcc88121 | 1127 | snd_pcm_drain (p->handle); |
2d2643f6 JD |
1128 | snd_pcm_close (p->handle); |
1129 | } | |
1130 | free (p); | |
1131 | } | |
1132 | } | |
1133 | ||
1134 | /* Choose device-dependent format for device SD from sound file S. */ | |
1135 | ||
1136 | static void | |
1137 | alsa_choose_format (sd, s) | |
1138 | struct sound_device *sd; | |
1139 | struct sound *s; | |
1140 | { | |
1141 | struct alsa_params *p = (struct alsa_params *) sd->data; | |
1142 | if (s->type == RIFF) | |
1143 | { | |
1144 | struct wav_header *h = (struct wav_header *) s->header; | |
1145 | if (h->precision == 8) | |
1146 | sd->format = SND_PCM_FORMAT_U8; | |
1147 | else if (h->precision == 16) | |
1148 | sd->format = SND_PCM_FORMAT_S16_LE; | |
1149 | else | |
1150 | error ("Unsupported WAV file format"); | |
1151 | } | |
1152 | else if (s->type == SUN_AUDIO) | |
1153 | { | |
1154 | struct au_header *header = (struct au_header *) s->header; | |
1155 | switch (header->encoding) | |
1156 | { | |
1157 | case AU_ENCODING_ULAW_8: | |
1158 | sd->format = SND_PCM_FORMAT_MU_LAW; | |
1159 | break; | |
1160 | case AU_ENCODING_ALAW_8: | |
1161 | sd->format = SND_PCM_FORMAT_A_LAW; | |
1162 | break; | |
1163 | case AU_ENCODING_IEEE32: | |
1164 | sd->format = SND_PCM_FORMAT_FLOAT_BE; | |
1165 | break; | |
1166 | case AU_ENCODING_IEEE64: | |
1167 | sd->format = SND_PCM_FORMAT_FLOAT64_BE; | |
1168 | break; | |
1169 | case AU_ENCODING_8: | |
1170 | sd->format = SND_PCM_FORMAT_S8; | |
1171 | break; | |
1172 | case AU_ENCODING_16: | |
1173 | sd->format = SND_PCM_FORMAT_S16_BE; | |
1174 | break; | |
1175 | case AU_ENCODING_24: | |
1176 | sd->format = SND_PCM_FORMAT_S24_BE; | |
1177 | break; | |
1178 | case AU_ENCODING_32: | |
1179 | sd->format = SND_PCM_FORMAT_S32_BE; | |
1180 | break; | |
1181 | ||
1182 | default: | |
1183 | error ("Unsupported AU file format"); | |
1184 | } | |
1185 | } | |
1186 | else | |
1187 | abort (); | |
1188 | } | |
1189 | ||
1190 | ||
1191 | /* Write NBYTES bytes from BUFFER to device SD. */ | |
1192 | ||
1193 | static void | |
1194 | alsa_write (sd, buffer, nbytes) | |
1195 | struct sound_device *sd; | |
1196 | const char *buffer; | |
1197 | int nbytes; | |
1198 | { | |
1199 | struct alsa_params *p = (struct alsa_params *) sd->data; | |
1200 | ||
1201 | /* The the third parameter to snd_pcm_writei is frames, not bytes. */ | |
1202 | int fact = snd_pcm_format_size (sd->format, 1) * sd->channels; | |
1203 | int nwritten = 0; | |
1204 | int err; | |
1205 | ||
1206 | while (nwritten < nbytes) | |
1207 | { | |
3fc7a865 JD |
1208 | err = snd_pcm_writei (p->handle, |
1209 | buffer + nwritten, | |
1210 | (nbytes - nwritten)/fact); | |
1211 | if (err < 0) | |
2d2643f6 | 1212 | { |
2d2643f6 JD |
1213 | if (err == -EPIPE) |
1214 | { /* under-run */ | |
1215 | err = snd_pcm_prepare (p->handle); | |
1216 | if (err < 0) | |
1217 | alsa_sound_perror ("Can't recover from underrun, prepare failed", | |
1218 | err); | |
1219 | } | |
1220 | else if (err == -ESTRPIPE) | |
1221 | { | |
1222 | while ((err = snd_pcm_resume (p->handle)) == -EAGAIN) | |
1223 | sleep(1); /* wait until the suspend flag is released */ | |
1224 | if (err < 0) | |
1225 | { | |
1226 | err = snd_pcm_prepare (p->handle); | |
1227 | if (err < 0) | |
1228 | alsa_sound_perror ("Can't recover from suspend, " | |
1229 | "prepare failed", | |
1230 | err); | |
1231 | } | |
1232 | } | |
ed1f0a45 | 1233 | else |
2d2643f6 | 1234 | alsa_sound_perror ("Error writing to sound device", err); |
ed1f0a45 | 1235 | |
2d2643f6 JD |
1236 | } |
1237 | else | |
1238 | nwritten += err * fact; | |
1239 | } | |
1240 | } | |
1241 | ||
1242 | static void | |
1243 | snd_error_quiet (file, line, function, err, fmt) | |
1244 | const char *file; | |
1245 | int line; | |
1246 | const char *function; | |
1247 | int err; | |
1248 | const char *fmt; | |
1249 | { | |
1250 | } | |
1251 | ||
1252 | /* Initialize device SD. Set up the interface functions in the device | |
1253 | structure. */ | |
1254 | ||
1255 | static int | |
1256 | alsa_init (sd) | |
1257 | struct sound_device *sd; | |
1258 | { | |
1259 | char *file; | |
1260 | snd_pcm_t *handle; | |
1261 | int err; | |
1262 | ||
1263 | /* Open the sound device. Default is "default". */ | |
1264 | if (sd->file) | |
1265 | file = sd->file; | |
1266 | else | |
1267 | file = DEFAULT_ALSA_SOUND_DEVICE; | |
1268 | ||
1269 | snd_lib_error_set_handler ((snd_lib_error_handler_t) snd_error_quiet); | |
1270 | err = snd_pcm_open (&handle, file, SND_PCM_STREAM_PLAYBACK, 0); | |
1271 | snd_lib_error_set_handler (NULL); | |
1272 | if (err < 0) | |
dcc88121 JD |
1273 | return 0; |
1274 | snd_pcm_close (handle); | |
2d2643f6 JD |
1275 | |
1276 | sd->fd = -1; | |
1277 | sd->open = alsa_open; | |
1278 | sd->close = alsa_close; | |
1279 | sd->configure = alsa_configure; | |
1280 | sd->choose_format = alsa_choose_format; | |
1281 | sd->write = alsa_write; | |
1282 | sd->period_size = alsa_period_size; | |
1283 | ||
1284 | return 1; | |
1285 | } | |
1286 | ||
1287 | #endif /* HAVE_ALSA */ | |
1288 | ||
1289 | ||
f60ae425 BK |
1290 | /* END: Non Windows functions */ |
1291 | #else /* WINDOWSNT */ | |
1292 | ||
1293 | /* BEGIN: Windows specific functions */ | |
1294 | ||
1295 | static int | |
1296 | do_play_sound (psz_file, ui_volume) | |
06c3eeed JB |
1297 | const char *psz_file; |
1298 | unsigned long ui_volume; | |
f60ae425 | 1299 | { |
06c3eeed JB |
1300 | int i_result = 0; |
1301 | MCIERROR mci_error = 0; | |
1302 | char sz_cmd_buf[520] = {0}; | |
1303 | char sz_ret_buf[520] = {0}; | |
1304 | MMRESULT mm_result = MMSYSERR_NOERROR; | |
1305 | unsigned long ui_volume_org = 0; | |
1306 | BOOL b_reset_volume = FALSE; | |
1307 | ||
f60ae425 BK |
1308 | memset (sz_cmd_buf, 0, sizeof(sz_cmd_buf)); |
1309 | memset (sz_ret_buf, 0, sizeof(sz_ret_buf)); | |
06c3eeed JB |
1310 | sprintf (sz_cmd_buf, |
1311 | "open \"%s\" alias GNUEmacs_PlaySound_Device wait", | |
1312 | psz_file); | |
1313 | mci_error = mciSendString (sz_cmd_buf, sz_ret_buf, 520, NULL); | |
f60ae425 BK |
1314 | if (mci_error != 0) |
1315 | { | |
06c3eeed JB |
1316 | sound_warning ("The open mciSendString command failed to open\n" |
1317 | "the specified sound file"); | |
1318 | i_result = (int) mci_error; | |
f60ae425 BK |
1319 | return i_result; |
1320 | } | |
1321 | if ((ui_volume > 0) && (ui_volume != UINT_MAX)) | |
1322 | { | |
06c3eeed | 1323 | mm_result = waveOutGetVolume ((HWAVEOUT) WAVE_MAPPER, &ui_volume_org); |
f60ae425 BK |
1324 | if (mm_result == MMSYSERR_NOERROR) |
1325 | { | |
06c3eeed JB |
1326 | b_reset_volume = TRUE; |
1327 | mm_result = waveOutSetVolume ((HWAVEOUT) WAVE_MAPPER, ui_volume); | |
f60ae425 BK |
1328 | if ( mm_result != MMSYSERR_NOERROR) |
1329 | { | |
06c3eeed JB |
1330 | sound_warning ("waveOutSetVolume failed to set the volume level\n" |
1331 | "of the WAVE_MAPPER device.\n" | |
1332 | "As a result, the user selected volume level will\n" | |
1333 | "not be used."); | |
f60ae425 BK |
1334 | } |
1335 | } | |
1336 | else | |
1337 | { | |
06c3eeed JB |
1338 | sound_warning ("waveOutGetVolume failed to obtain the original\n" |
1339 | "volume level of the WAVE_MAPPER device.\n" | |
1340 | "As a result, the user selected volume level will\n" | |
1341 | "not be used."); | |
f60ae425 BK |
1342 | } |
1343 | } | |
1344 | memset (sz_cmd_buf, 0, sizeof(sz_cmd_buf)); | |
1345 | memset (sz_ret_buf, 0, sizeof(sz_ret_buf)); | |
1346 | strcpy (sz_cmd_buf, "play GNUEmacs_PlaySound_Device wait"); | |
06c3eeed | 1347 | mci_error = mciSendString (sz_cmd_buf, sz_ret_buf, 520, NULL); |
f60ae425 BK |
1348 | if (mci_error != 0) |
1349 | { | |
06c3eeed JB |
1350 | sound_warning ("The play mciSendString command failed to play the\n" |
1351 | "opened sound file."); | |
1352 | i_result = (int) mci_error; | |
f60ae425 BK |
1353 | } |
1354 | memset (sz_cmd_buf, 0, sizeof(sz_cmd_buf)); | |
1355 | memset (sz_ret_buf, 0, sizeof(sz_ret_buf)); | |
1356 | strcpy (sz_cmd_buf, "close GNUEmacs_PlaySound_Device wait"); | |
06c3eeed | 1357 | mci_error = mciSendString (sz_cmd_buf, sz_ret_buf, 520, NULL); |
f60ae425 BK |
1358 | if (b_reset_volume == TRUE) |
1359 | { | |
06c3eeed | 1360 | mm_result=waveOutSetVolume ((HWAVEOUT) WAVE_MAPPER, ui_volume_org); |
f60ae425 BK |
1361 | if (mm_result != MMSYSERR_NOERROR) |
1362 | { | |
06c3eeed JB |
1363 | sound_warning ("waveOutSetVolume failed to reset the original volume\n" |
1364 | "level of the WAVE_MAPPER device."); | |
f60ae425 BK |
1365 | } |
1366 | } | |
1367 | return i_result; | |
1368 | } | |
1369 | ||
1370 | /* END: Windows specific functions */ | |
1371 | ||
1372 | #endif /* WINDOWSNT */ | |
1373 | ||
f60ae425 BK |
1374 | DEFUN ("play-sound-internal", Fplay_sound_internal, Splay_sound_internal, 1, 1, 0, |
1375 | doc: /* Play sound SOUND. | |
1376 | ||
ed1f0a45 | 1377 | Internal use only, use `play-sound' instead. */) |
f60ae425 BK |
1378 | (sound) |
1379 | Lisp_Object sound; | |
1380 | { | |
1381 | Lisp_Object attrs[SOUND_ATTR_SENTINEL]; | |
1382 | int count = SPECPDL_INDEX (); | |
1383 | ||
1384 | #ifndef WINDOWSNT | |
1385 | Lisp_Object file; | |
1386 | struct gcpro gcpro1, gcpro2; | |
f60ae425 BK |
1387 | Lisp_Object args[2]; |
1388 | #else /* WINDOWSNT */ | |
06c3eeed JB |
1389 | int len = 0; |
1390 | Lisp_Object lo_file = {0}; | |
1391 | char * psz_file = NULL; | |
1392 | unsigned long ui_volume_tmp = UINT_MAX; | |
1393 | unsigned long ui_volume = UINT_MAX; | |
1394 | int i_result = 0; | |
f60ae425 BK |
1395 | #endif /* WINDOWSNT */ |
1396 | ||
1397 | /* Parse the sound specification. Give up if it is invalid. */ | |
1398 | if (!parse_sound (sound, attrs)) | |
1399 | error ("Invalid sound specification"); | |
1400 | ||
1401 | #ifndef WINDOWSNT | |
1402 | file = Qnil; | |
1403 | GCPRO2 (sound, file); | |
8e6ec322 RS |
1404 | current_sound_device = (struct sound_device *) xmalloc (sizeof (struct sound_device)); |
1405 | bzero (current_sound_device, sizeof (struct sound_device)); | |
1406 | current_sound = (struct sound *) xmalloc (sizeof (struct sound)); | |
1407 | bzero (current_sound, sizeof (struct sound)); | |
f60ae425 | 1408 | record_unwind_protect (sound_cleanup, Qnil); |
8e6ec322 | 1409 | current_sound->header = (char *) alloca (MAX_SOUND_HEADER_BYTES); |
f60ae425 BK |
1410 | |
1411 | if (STRINGP (attrs[SOUND_FILE])) | |
1412 | { | |
1413 | /* Open the sound file. */ | |
8e6ec322 RS |
1414 | current_sound->fd = openp (Fcons (Vdata_directory, Qnil), |
1415 | attrs[SOUND_FILE], Qnil, &file, Qnil); | |
1416 | if (current_sound->fd < 0) | |
f60ae425 BK |
1417 | sound_perror ("Could not open sound file"); |
1418 | ||
1419 | /* Read the first bytes from the file. */ | |
8e6ec322 RS |
1420 | current_sound->header_size |
1421 | = emacs_read (current_sound->fd, current_sound->header, | |
1422 | MAX_SOUND_HEADER_BYTES); | |
1423 | if (current_sound->header_size < 0) | |
f60ae425 BK |
1424 | sound_perror ("Invalid sound file header"); |
1425 | } | |
1426 | else | |
1427 | { | |
8e6ec322 RS |
1428 | current_sound->data = attrs[SOUND_DATA]; |
1429 | current_sound->header_size = min (MAX_SOUND_HEADER_BYTES, SBYTES (current_sound->data)); | |
1430 | bcopy (SDATA (current_sound->data), current_sound->header, current_sound->header_size); | |
f60ae425 BK |
1431 | } |
1432 | ||
1433 | /* Find out the type of sound. Give up if we can't tell. */ | |
8e6ec322 | 1434 | find_sound_type (current_sound); |
f60ae425 BK |
1435 | |
1436 | /* Set up a device. */ | |
1437 | if (STRINGP (attrs[SOUND_DEVICE])) | |
1438 | { | |
1439 | int len = SCHARS (attrs[SOUND_DEVICE]); | |
8e6ec322 RS |
1440 | current_sound_device->file = (char *) alloca (len + 1); |
1441 | strcpy (current_sound_device->file, SDATA (attrs[SOUND_DEVICE])); | |
f60ae425 BK |
1442 | } |
1443 | ||
1444 | if (INTEGERP (attrs[SOUND_VOLUME])) | |
8e6ec322 | 1445 | current_sound_device->volume = XFASTINT (attrs[SOUND_VOLUME]); |
f60ae425 | 1446 | else if (FLOATP (attrs[SOUND_VOLUME])) |
8e6ec322 | 1447 | current_sound_device->volume = XFLOAT_DATA (attrs[SOUND_VOLUME]) * 100; |
7840ced1 | 1448 | |
f60ae425 BK |
1449 | args[0] = Qplay_sound_functions; |
1450 | args[1] = sound; | |
1451 | Frun_hook_with_args (2, args); | |
1452 | ||
2d2643f6 JD |
1453 | #ifdef HAVE_ALSA |
1454 | if (!alsa_init (current_sound_device)) | |
1455 | #endif | |
1456 | if (!vox_init (current_sound_device)) | |
1457 | error ("No usable sound device driver found"); | |
f60ae425 BK |
1458 | |
1459 | /* Open the device. */ | |
8e6ec322 | 1460 | current_sound_device->open (current_sound_device); |
f60ae425 BK |
1461 | |
1462 | /* Play the sound. */ | |
8e6ec322 | 1463 | current_sound->play (current_sound, current_sound_device); |
f60ae425 BK |
1464 | |
1465 | /* Clean up. */ | |
f60ae425 | 1466 | UNGCPRO; |
06c3eeed | 1467 | |
f60ae425 | 1468 | #else /* WINDOWSNT */ |
06c3eeed JB |
1469 | |
1470 | lo_file = Fexpand_file_name (attrs[SOUND_FILE], Qnil); | |
1471 | len = XSTRING (lo_file)->size; | |
1472 | psz_file = (char *) alloca (len + 1); | |
f60ae425 BK |
1473 | strcpy (psz_file, XSTRING (lo_file)->data); |
1474 | if (INTEGERP (attrs[SOUND_VOLUME])) | |
1475 | { | |
06c3eeed | 1476 | ui_volume_tmp = XFASTINT (attrs[SOUND_VOLUME]); |
f60ae425 BK |
1477 | } |
1478 | else if (FLOATP (attrs[SOUND_VOLUME])) | |
1479 | { | |
06c3eeed | 1480 | ui_volume_tmp = (unsigned long) XFLOAT_DATA (attrs[SOUND_VOLUME]) * 100; |
f60ae425 BK |
1481 | } |
1482 | /* | |
1483 | Based on some experiments I have conducted, a value of 100 or less | |
1484 | for the sound volume is much too low. You cannot even hear it. | |
1485 | A value of UINT_MAX indicates that you wish for the sound to played | |
1486 | at the maximum possible volume. A value of UINT_MAX/2 plays the | |
1487 | sound at 50% maximum volume. Therefore the value passed to do_play_sound | |
06c3eeed | 1488 | (and thus to waveOutSetVolume) must be some fraction of UINT_MAX. |
f60ae425 | 1489 | The following code adjusts the user specified volume level appropriately. |
06c3eeed | 1490 | */ |
f60ae425 BK |
1491 | if ((ui_volume_tmp > 0) && (ui_volume_tmp <= 100)) |
1492 | { | |
06c3eeed | 1493 | ui_volume = ui_volume_tmp * (UINT_MAX / 100); |
f60ae425 | 1494 | } |
06c3eeed JB |
1495 | i_result = do_play_sound (psz_file, ui_volume); |
1496 | ||
f60ae425 | 1497 | #endif /* WINDOWSNT */ |
06c3eeed | 1498 | |
f60ae425 BK |
1499 | unbind_to (count, Qnil); |
1500 | return Qnil; | |
1501 | } | |
7840ced1 GM |
1502 | \f |
1503 | /*********************************************************************** | |
1504 | Initialization | |
1505 | ***********************************************************************/ | |
1506 | ||
1507 | void | |
1508 | syms_of_sound () | |
1509 | { | |
1510 | QCdevice = intern (":device"); | |
1511 | staticpro (&QCdevice); | |
1512 | QCvolume = intern (":volume"); | |
1513 | staticpro (&QCvolume); | |
1514 | Qsound = intern ("sound"); | |
1515 | staticpro (&Qsound); | |
2a53558d GM |
1516 | Qplay_sound_functions = intern ("play-sound-functions"); |
1517 | staticpro (&Qplay_sound_functions); | |
7840ced1 | 1518 | |
14e415e7 | 1519 | defsubr (&Splay_sound_internal); |
7840ced1 GM |
1520 | } |
1521 | ||
1522 | ||
1523 | void | |
1524 | init_sound () | |
1525 | { | |
1526 | } | |
1527 | ||
1528 | #endif /* HAVE_SOUND */ | |
ab5796a9 MB |
1529 | |
1530 | /* arch-tag: dd850ad8-0433-4e2c-9cba-b7aeeccc0dbd | |
1531 | (do not change this comment) */ |