Commit | Line | Data |
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7840ced1 | 1 | /* sound.c -- sound support. |
0b5538bd | 2 | Copyright (C) 1998, 1999, 2001, 2002, 2003, 2004, |
114f9c96 | 3 | 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
7840ced1 GM |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
7840ced1 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
7840ced1 GM |
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 | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
7840ced1 GM |
19 | |
20 | /* Written by Gerd Moellmann <gerd@gnu.org>. Tested with Luigi's | |
21 | driver on FreeBSD 2.2.7 with a SoundBlaster 16. */ | |
22 | ||
f60ae425 BK |
23 | /* |
24 | Modified by Ben Key <Bkey1@tampabay.rr.com> to add a partial | |
25 | implementation of the play-sound specification for Windows. | |
26 | ||
27 | Notes: | |
28 | In the Windows implementation of play-sound-internal only the | |
29 | :file and :volume keywords are supported. The :device keyword, | |
30 | if present, is ignored. The :data keyword, if present, will | |
31 | cause an error to be generated. | |
32 | ||
33 | The Windows implementation of play-sound is implemented via the | |
34 | Win32 API functions mciSendString, waveOutGetVolume, and | |
06c3eeed | 35 | waveOutSetVolume which are exported by Winmm.dll. |
f60ae425 BK |
36 | */ |
37 | ||
7840ced1 GM |
38 | #include <config.h> |
39 | ||
40 | #if defined HAVE_SOUND | |
41 | ||
f60ae425 | 42 | /* BEGIN: Common Includes */ |
7840ced1 GM |
43 | #include <fcntl.h> |
44 | #include <unistd.h> | |
45 | #include <sys/types.h> | |
7840ced1 | 46 | #include <errno.h> |
d7306fe6 | 47 | #include <setjmp.h> |
53fab6e2 GM |
48 | #include "lisp.h" |
49 | #include "dispextern.h" | |
50 | #include "atimer.h" | |
bb6e8cee GM |
51 | #include <signal.h> |
52 | #include "syssignal.h" | |
f60ae425 BK |
53 | /* END: Common Includes */ |
54 | ||
55 | ||
56 | /* BEGIN: Non Windows Includes */ | |
57 | #ifndef WINDOWSNT | |
7840ced1 | 58 | |
502150e5 | 59 | #include <sys/ioctl.h> |
502150e5 | 60 | |
7840ced1 GM |
61 | /* FreeBSD has machine/soundcard.h. Voxware sound driver docs mention |
62 | sys/soundcard.h. So, let's try whatever's there. */ | |
63 | ||
64 | #ifdef HAVE_MACHINE_SOUNDCARD_H | |
65 | #include <machine/soundcard.h> | |
66 | #endif | |
67 | #ifdef HAVE_SYS_SOUNDCARD_H | |
68 | #include <sys/soundcard.h> | |
69 | #endif | |
80fcd514 | 70 | #ifdef HAVE_SOUNDCARD_H |
80fcd514 KR |
71 | #include <soundcard.h> |
72 | #endif | |
2d2643f6 | 73 | #ifdef HAVE_ALSA |
1d30a597 JD |
74 | #ifdef ALSA_SUBDIR_INCLUDE |
75 | #include <alsa/asoundlib.h> | |
76 | #else | |
2d2643f6 | 77 | #include <asoundlib.h> |
1d30a597 JD |
78 | #endif /* ALSA_SUBDIR_INCLUDE */ |
79 | #endif /* HAVE_ALSA */ | |
2d2643f6 | 80 | |
f60ae425 BK |
81 | /* END: Non Windows Includes */ |
82 | ||
83 | #else /* WINDOWSNT */ | |
84 | ||
85 | /* BEGIN: Windows Specific Includes */ | |
86 | #include <stdio.h> | |
f60ae425 BK |
87 | #include <limits.h> |
88 | #include <windows.h> | |
89 | #include <mmsystem.h> | |
90 | /* END: Windows Specific Includes */ | |
91 | ||
92 | #endif /* WINDOWSNT */ | |
93 | ||
94 | /* BEGIN: Common Definitions */ | |
f60ae425 BK |
95 | |
96 | /* Symbols. */ | |
97 | ||
f60ae425 BK |
98 | Lisp_Object QCvolume, QCdevice; |
99 | Lisp_Object Qsound; | |
100 | Lisp_Object Qplay_sound_functions; | |
101 | ||
102 | /* Indices of attributes in a sound attributes vector. */ | |
103 | ||
104 | enum sound_attr | |
105 | { | |
106 | SOUND_FILE, | |
107 | SOUND_DATA, | |
108 | SOUND_DEVICE, | |
109 | SOUND_VOLUME, | |
110 | SOUND_ATTR_SENTINEL | |
111 | }; | |
112 | ||
361358ea | 113 | #ifdef HAVE_ALSA |
8ea90aa3 | 114 | static void alsa_sound_perror (const char *, int) NO_RETURN; |
361358ea | 115 | #endif |
8ea90aa3 DN |
116 | static void sound_perror (const char *) NO_RETURN; |
117 | static void sound_warning (const char *); | |
f57e2426 | 118 | static int parse_sound (Lisp_Object, Lisp_Object *); |
f60ae425 BK |
119 | |
120 | /* END: Common Definitions */ | |
121 | ||
122 | /* BEGIN: Non Windows Definitions */ | |
123 | #ifndef WINDOWSNT | |
80fcd514 KR |
124 | |
125 | #ifndef DEFAULT_SOUND_DEVICE | |
126 | #define DEFAULT_SOUND_DEVICE "/dev/dsp" | |
127 | #endif | |
2d2643f6 JD |
128 | #ifndef DEFAULT_ALSA_SOUND_DEVICE |
129 | #define DEFAULT_ALSA_SOUND_DEVICE "default" | |
130 | #endif | |
7840ced1 | 131 | |
7840ced1 GM |
132 | |
133 | /* Structure forward declarations. */ | |
134 | ||
d1299cde | 135 | struct sound; |
7840ced1 GM |
136 | struct sound_device; |
137 | ||
138 | /* The file header of RIFF-WAVE files (*.wav). Files are always in | |
139 | little-endian byte-order. */ | |
140 | ||
141 | struct wav_header | |
142 | { | |
143 | u_int32_t magic; | |
144 | u_int32_t length; | |
145 | u_int32_t chunk_type; | |
146 | u_int32_t chunk_format; | |
147 | u_int32_t chunk_length; | |
148 | u_int16_t format; | |
149 | u_int16_t channels; | |
150 | u_int32_t sample_rate; | |
151 | u_int32_t bytes_per_second; | |
152 | u_int16_t sample_size; | |
153 | u_int16_t precision; | |
154 | u_int32_t chunk_data; | |
155 | u_int32_t data_length; | |
156 | }; | |
157 | ||
158 | /* The file header of Sun adio files (*.au). Files are always in | |
159 | big-endian byte-order. */ | |
160 | ||
161 | struct au_header | |
162 | { | |
163 | /* ASCII ".snd" */ | |
164 | u_int32_t magic_number; | |
a4ff5d67 | 165 | |
7840ced1 GM |
166 | /* Offset of data part from start of file. Minimum value is 24. */ |
167 | u_int32_t data_offset; | |
a4ff5d67 | 168 | |
7840ced1 GM |
169 | /* Size of data part, 0xffffffff if unknown. */ |
170 | u_int32_t data_size; | |
171 | ||
172 | /* Data encoding format. | |
173 | 1 8-bit ISDN u-law | |
174 | 2 8-bit linear PCM (REF-PCM) | |
175 | 3 16-bit linear PCM | |
176 | 4 24-bit linear PCM | |
177 | 5 32-bit linear PCM | |
178 | 6 32-bit IEEE floating-point | |
179 | 7 64-bit IEEE floating-point | |
180 | 23 8-bit u-law compressed using CCITT 0.721 ADPCM voice data | |
181 | encoding scheme. */ | |
182 | u_int32_t encoding; | |
183 | ||
184 | /* Number of samples per second. */ | |
185 | u_int32_t sample_rate; | |
186 | ||
187 | /* Number of interleaved channels. */ | |
188 | u_int32_t channels; | |
189 | }; | |
190 | ||
191 | /* Maximum of all sound file headers sizes. */ | |
192 | ||
193 | #define MAX_SOUND_HEADER_BYTES \ | |
194 | max (sizeof (struct wav_header), sizeof (struct au_header)) | |
195 | ||
196 | /* Interface structure for sound devices. */ | |
197 | ||
198 | struct sound_device | |
199 | { | |
200 | /* The name of the device or null meaning use a default device name. */ | |
201 | char *file; | |
202 | ||
203 | /* File descriptor of the device. */ | |
204 | int fd; | |
205 | ||
206 | /* Device-dependent format. */ | |
207 | int format; | |
208 | ||
209 | /* Volume (0..100). Zero means unspecified. */ | |
210 | int volume; | |
211 | ||
212 | /* Sample size. */ | |
213 | int sample_size; | |
214 | ||
215 | /* Sample rate. */ | |
216 | int sample_rate; | |
217 | ||
218 | /* Bytes per second. */ | |
219 | int bps; | |
220 | ||
221 | /* 1 = mono, 2 = stereo, 0 = don't set. */ | |
222 | int channels; | |
a4ff5d67 | 223 | |
7840ced1 | 224 | /* Open device SD. */ |
f57e2426 | 225 | void (* open) (struct sound_device *sd); |
7840ced1 GM |
226 | |
227 | /* Close device SD. */ | |
f57e2426 | 228 | void (* close) (struct sound_device *sd); |
7840ced1 GM |
229 | |
230 | /* Configure SD accoring to device-dependent parameters. */ | |
f57e2426 | 231 | void (* configure) (struct sound_device *device); |
a4ff5d67 | 232 | |
d1299cde | 233 | /* Choose a device-dependent format for outputting sound S. */ |
f57e2426 J |
234 | void (* choose_format) (struct sound_device *sd, |
235 | struct sound *s); | |
7840ced1 | 236 | |
2d2643f6 JD |
237 | /* Return a preferred data size in bytes to be sent to write (below) |
238 | each time. 2048 is used if this is NULL. */ | |
f57e2426 | 239 | int (* period_size) (struct sound_device *sd); |
2d2643f6 | 240 | |
7840ced1 | 241 | /* Write NYBTES bytes from BUFFER to device SD. */ |
f57e2426 J |
242 | void (* write) (struct sound_device *sd, const char *buffer, |
243 | int nbytes); | |
7840ced1 GM |
244 | |
245 | /* A place for devices to store additional data. */ | |
246 | void *data; | |
247 | }; | |
248 | ||
249 | /* An enumerator for each supported sound file type. */ | |
250 | ||
251 | enum sound_type | |
252 | { | |
253 | RIFF, | |
254 | SUN_AUDIO | |
255 | }; | |
256 | ||
257 | /* Interface structure for sound files. */ | |
258 | ||
d1299cde | 259 | struct sound |
7840ced1 GM |
260 | { |
261 | /* The type of the file. */ | |
262 | enum sound_type type; | |
263 | ||
d1299cde | 264 | /* File descriptor of a sound file. */ |
7840ced1 GM |
265 | int fd; |
266 | ||
d1299cde GM |
267 | /* Pointer to sound file header. This contains header_size bytes |
268 | read from the start of a sound file. */ | |
7840ced1 GM |
269 | char *header; |
270 | ||
d1299cde GM |
271 | /* Number of bytes raed from sound file. This is always <= |
272 | MAX_SOUND_HEADER_BYTES. */ | |
273 | int header_size; | |
274 | ||
275 | /* Sound data, if a string. */ | |
276 | Lisp_Object data; | |
277 | ||
278 | /* Play sound file S on device SD. */ | |
f57e2426 | 279 | void (* play) (struct sound *s, struct sound_device *sd); |
7840ced1 GM |
280 | }; |
281 | ||
14e415e7 | 282 | /* These are set during `play-sound-internal' so that sound_cleanup has |
7840ced1 GM |
283 | access to them. */ |
284 | ||
d1299cde GM |
285 | struct sound_device *current_sound_device; |
286 | struct sound *current_sound; | |
7840ced1 GM |
287 | |
288 | /* Function prototypes. */ | |
289 | ||
f57e2426 J |
290 | static void vox_open (struct sound_device *); |
291 | static void vox_configure (struct sound_device *); | |
292 | static void vox_close (struct sound_device *sd); | |
293 | static void vox_choose_format (struct sound_device *, struct sound *); | |
294 | static int vox_init (struct sound_device *); | |
295 | static void vox_write (struct sound_device *, const char *, int); | |
296 | static void find_sound_type (struct sound *); | |
297 | static u_int32_t le2hl (u_int32_t); | |
298 | static u_int16_t le2hs (u_int16_t); | |
299 | static u_int32_t be2hl (u_int32_t); | |
300 | static int wav_init (struct sound *); | |
301 | static void wav_play (struct sound *, struct sound_device *); | |
302 | static int au_init (struct sound *); | |
303 | static void au_play (struct sound *, struct sound_device *); | |
7840ced1 | 304 | |
9680b9d0 | 305 | #if 0 /* Currently not used. */ |
f57e2426 | 306 | static u_int16_t be2hs (u_int16_t); |
9680b9d0 GM |
307 | #endif |
308 | ||
f60ae425 BK |
309 | /* END: Non Windows Definitions */ |
310 | #else /* WINDOWSNT */ | |
311 | ||
312 | /* BEGIN: Windows Specific Definitions */ | |
f57e2426 | 313 | static int do_play_sound (const char *, unsigned long); |
f60ae425 BK |
314 | /* |
315 | END: Windows Specific Definitions */ | |
316 | #endif /* WINDOWSNT */ | |
7840ced1 GM |
317 | |
318 | \f | |
319 | /*********************************************************************** | |
320 | General | |
321 | ***********************************************************************/ | |
322 | ||
f60ae425 BK |
323 | /* BEGIN: Common functions */ |
324 | ||
7840ced1 GM |
325 | /* Like perror, but signals an error. */ |
326 | ||
327 | static void | |
8ea90aa3 | 328 | sound_perror (const char *msg) |
7840ced1 | 329 | { |
3297e2a1 AS |
330 | int saved_errno = errno; |
331 | ||
62725a92 GM |
332 | turn_on_atimers (1); |
333 | #ifdef SIGIO | |
334 | sigunblock (sigmask (SIGIO)); | |
335 | #endif | |
3297e2a1 AS |
336 | if (saved_errno != 0) |
337 | error ("%s: %s", msg, strerror (saved_errno)); | |
62725a92 GM |
338 | else |
339 | error ("%s", msg); | |
340 | } | |
341 | ||
342 | ||
343 | /* Display a warning message. */ | |
344 | ||
345 | static void | |
8ea90aa3 | 346 | sound_warning (const char *msg) |
62725a92 GM |
347 | { |
348 | message (msg); | |
7840ced1 GM |
349 | } |
350 | ||
351 | ||
352 | /* Parse sound specification SOUND, and fill ATTRS with what is | |
353 | found. Value is non-zero if SOUND Is a valid sound specification. | |
354 | A valid sound specification is a list starting with the symbol | |
355 | `sound'. The rest of the list is a property list which may | |
356 | contain the following key/value pairs: | |
357 | ||
358 | - `:file FILE' | |
359 | ||
360 | FILE is the sound file to play. If it isn't an absolute name, | |
361 | it's searched under `data-directory'. | |
362 | ||
d1299cde GM |
363 | - `:data DATA' |
364 | ||
365 | DATA is a string containing sound data. Either :file or :data | |
366 | may be present, but not both. | |
367 | ||
7840ced1 GM |
368 | - `:device DEVICE' |
369 | ||
370 | DEVICE is the name of the device to play on, e.g. "/dev/dsp2". | |
371 | If not specified, a default device is used. | |
372 | ||
373 | - `:volume VOL' | |
374 | ||
2a53558d GM |
375 | VOL must be an integer in the range [0, 100], or a float in the |
376 | range [0, 1]. */ | |
7840ced1 GM |
377 | |
378 | static int | |
971de7fb | 379 | parse_sound (Lisp_Object sound, Lisp_Object *attrs) |
7840ced1 GM |
380 | { |
381 | /* SOUND must be a list starting with the symbol `sound'. */ | |
382 | if (!CONSP (sound) || !EQ (XCAR (sound), Qsound)) | |
383 | return 0; | |
384 | ||
385 | sound = XCDR (sound); | |
386 | attrs[SOUND_FILE] = Fplist_get (sound, QCfile); | |
d1299cde | 387 | attrs[SOUND_DATA] = Fplist_get (sound, QCdata); |
7840ced1 GM |
388 | attrs[SOUND_DEVICE] = Fplist_get (sound, QCdevice); |
389 | attrs[SOUND_VOLUME] = Fplist_get (sound, QCvolume); | |
390 | ||
f60ae425 | 391 | #ifndef WINDOWSNT |
d1299cde GM |
392 | /* File name or data must be specified. */ |
393 | if (!STRINGP (attrs[SOUND_FILE]) | |
394 | && !STRINGP (attrs[SOUND_DATA])) | |
7840ced1 | 395 | return 0; |
f60ae425 BK |
396 | #else /* WINDOWSNT */ |
397 | /* | |
398 | Data is not supported in Windows. Therefore a | |
399 | File name MUST be supplied. | |
400 | */ | |
401 | if (!STRINGP (attrs[SOUND_FILE])) | |
402 | { | |
403 | return 0; | |
404 | } | |
405 | #endif /* WINDOWSNT */ | |
7840ced1 GM |
406 | |
407 | /* Volume must be in the range 0..100 or unspecified. */ | |
408 | if (!NILP (attrs[SOUND_VOLUME])) | |
409 | { | |
2a53558d GM |
410 | if (INTEGERP (attrs[SOUND_VOLUME])) |
411 | { | |
412 | if (XINT (attrs[SOUND_VOLUME]) < 0 | |
413 | || XINT (attrs[SOUND_VOLUME]) > 100) | |
414 | return 0; | |
415 | } | |
416 | else if (FLOATP (attrs[SOUND_VOLUME])) | |
417 | { | |
418 | if (XFLOAT_DATA (attrs[SOUND_VOLUME]) < 0 | |
419 | || XFLOAT_DATA (attrs[SOUND_VOLUME]) > 1) | |
420 | return 0; | |
421 | } | |
422 | else | |
7840ced1 GM |
423 | return 0; |
424 | } | |
425 | ||
f60ae425 | 426 | #ifndef WINDOWSNT |
7840ced1 GM |
427 | /* Device must be a string or unspecified. */ |
428 | if (!NILP (attrs[SOUND_DEVICE]) | |
429 | && !STRINGP (attrs[SOUND_DEVICE])) | |
430 | return 0; | |
f60ae425 BK |
431 | #endif /* WINDOWSNT */ |
432 | /* | |
433 | Since device is ignored in Windows, it does not matter | |
434 | what it is. | |
435 | */ | |
7840ced1 GM |
436 | return 1; |
437 | } | |
438 | ||
f60ae425 BK |
439 | /* END: Common functions */ |
440 | ||
441 | /* BEGIN: Non Windows functions */ | |
442 | #ifndef WINDOWSNT | |
7840ced1 GM |
443 | |
444 | /* Find out the type of the sound file whose file descriptor is FD. | |
d1299cde | 445 | S is the sound file structure to fill in. */ |
7840ced1 GM |
446 | |
447 | static void | |
971de7fb | 448 | find_sound_type (struct sound *s) |
7840ced1 | 449 | { |
d1299cde GM |
450 | if (!wav_init (s) && !au_init (s)) |
451 | error ("Unknown sound format"); | |
7840ced1 GM |
452 | } |
453 | ||
454 | ||
14e415e7 | 455 | /* Function installed by play-sound-internal with record_unwind_protect. */ |
7840ced1 GM |
456 | |
457 | static Lisp_Object | |
971de7fb | 458 | sound_cleanup (Lisp_Object arg) |
7840ced1 | 459 | { |
8e6ec322 RS |
460 | if (current_sound_device->close) |
461 | current_sound_device->close (current_sound_device); | |
462 | if (current_sound->fd > 0) | |
463 | emacs_close (current_sound->fd); | |
464 | free (current_sound_device); | |
465 | free (current_sound); | |
3887b449 GM |
466 | |
467 | return Qnil; | |
7840ced1 GM |
468 | } |
469 | ||
7840ced1 GM |
470 | /*********************************************************************** |
471 | Byte-order Conversion | |
472 | ***********************************************************************/ | |
473 | ||
474 | /* Convert 32-bit value VALUE which is in little-endian byte-order | |
475 | to host byte-order. */ | |
476 | ||
477 | static u_int32_t | |
971de7fb | 478 | le2hl (u_int32_t value) |
7840ced1 | 479 | { |
671d409f | 480 | #ifdef WORDS_BIGENDIAN |
7840ced1 GM |
481 | unsigned char *p = (unsigned char *) &value; |
482 | value = p[0] + (p[1] << 8) + (p[2] << 16) + (p[3] << 24); | |
483 | #endif | |
484 | return value; | |
485 | } | |
486 | ||
487 | ||
488 | /* Convert 16-bit value VALUE which is in little-endian byte-order | |
489 | to host byte-order. */ | |
490 | ||
491 | static u_int16_t | |
971de7fb | 492 | le2hs (u_int16_t value) |
7840ced1 | 493 | { |
671d409f | 494 | #ifdef WORDS_BIGENDIAN |
7840ced1 GM |
495 | unsigned char *p = (unsigned char *) &value; |
496 | value = p[0] + (p[1] << 8); | |
497 | #endif | |
498 | return value; | |
499 | } | |
500 | ||
501 | ||
502 | /* Convert 32-bit value VALUE which is in big-endian byte-order | |
503 | to host byte-order. */ | |
504 | ||
505 | static u_int32_t | |
971de7fb | 506 | be2hl (u_int32_t value) |
7840ced1 | 507 | { |
671d409f | 508 | #ifndef WORDS_BIGENDIAN |
7840ced1 GM |
509 | unsigned char *p = (unsigned char *) &value; |
510 | value = p[3] + (p[2] << 8) + (p[1] << 16) + (p[0] << 24); | |
511 | #endif | |
512 | return value; | |
513 | } | |
514 | ||
515 | ||
9680b9d0 GM |
516 | #if 0 /* Currently not used. */ |
517 | ||
7840ced1 GM |
518 | /* Convert 16-bit value VALUE which is in big-endian byte-order |
519 | to host byte-order. */ | |
520 | ||
521 | static u_int16_t | |
7c3320d8 | 522 | be2hs (u_int16_t value) |
7840ced1 | 523 | { |
671d409f | 524 | #ifndef WORDS_BIGENDIAN |
7840ced1 GM |
525 | unsigned char *p = (unsigned char *) &value; |
526 | value = p[1] + (p[0] << 8); | |
527 | #endif | |
528 | return value; | |
529 | } | |
530 | ||
9680b9d0 | 531 | #endif /* 0 */ |
7840ced1 | 532 | |
7840ced1 GM |
533 | /*********************************************************************** |
534 | RIFF-WAVE (*.wav) | |
535 | ***********************************************************************/ | |
536 | ||
d1299cde | 537 | /* Try to initialize sound file S from S->header. S->header |
7840ced1 GM |
538 | contains the first MAX_SOUND_HEADER_BYTES number of bytes from the |
539 | sound file. If the file is a WAV-format file, set up interface | |
d1299cde | 540 | functions in S and convert header fields to host byte-order. |
7840ced1 GM |
541 | Value is non-zero if the file is a WAV file. */ |
542 | ||
543 | static int | |
971de7fb | 544 | wav_init (struct sound *s) |
7840ced1 | 545 | { |
d1299cde GM |
546 | struct wav_header *header = (struct wav_header *) s->header; |
547 | ||
548 | if (s->header_size < sizeof *header | |
72af86bd | 549 | || memcmp (s->header, "RIFF", 4) != 0) |
7840ced1 GM |
550 | return 0; |
551 | ||
552 | /* WAV files are in little-endian order. Convert the header | |
553 | if on a big-endian machine. */ | |
554 | header->magic = le2hl (header->magic); | |
555 | header->length = le2hl (header->length); | |
556 | header->chunk_type = le2hl (header->chunk_type); | |
557 | header->chunk_format = le2hl (header->chunk_format); | |
558 | header->chunk_length = le2hl (header->chunk_length); | |
559 | header->format = le2hs (header->format); | |
560 | header->channels = le2hs (header->channels); | |
561 | header->sample_rate = le2hl (header->sample_rate); | |
562 | header->bytes_per_second = le2hl (header->bytes_per_second); | |
563 | header->sample_size = le2hs (header->sample_size); | |
564 | header->precision = le2hs (header->precision); | |
565 | header->chunk_data = le2hl (header->chunk_data); | |
566 | header->data_length = le2hl (header->data_length); | |
567 | ||
568 | /* Set up the interface functions for WAV. */ | |
d1299cde GM |
569 | s->type = RIFF; |
570 | s->play = wav_play; | |
7840ced1 GM |
571 | |
572 | return 1; | |
a4ff5d67 | 573 | } |
7840ced1 GM |
574 | |
575 | ||
d1299cde | 576 | /* Play RIFF-WAVE audio file S on sound device SD. */ |
7840ced1 GM |
577 | |
578 | static void | |
971de7fb | 579 | wav_play (struct sound *s, struct sound_device *sd) |
7840ced1 | 580 | { |
d1299cde | 581 | struct wav_header *header = (struct wav_header *) s->header; |
7840ced1 GM |
582 | |
583 | /* Let the device choose a suitable device-dependent format | |
584 | for the file. */ | |
d1299cde | 585 | sd->choose_format (sd, s); |
a4ff5d67 | 586 | |
7840ced1 GM |
587 | /* Configure the device. */ |
588 | sd->sample_size = header->sample_size; | |
589 | sd->sample_rate = header->sample_rate; | |
590 | sd->bps = header->bytes_per_second; | |
591 | sd->channels = header->channels; | |
592 | sd->configure (sd); | |
593 | ||
594 | /* Copy sound data to the device. The WAV file specification is | |
595 | actually more complex. This simple scheme worked with all WAV | |
596 | files I found so far. If someone feels inclined to implement the | |
597 | whole RIFF-WAVE spec, please do. */ | |
d1299cde | 598 | if (STRINGP (s->data)) |
d5db4077 KR |
599 | sd->write (sd, SDATA (s->data) + sizeof *header, |
600 | SBYTES (s->data) - sizeof *header); | |
d1299cde GM |
601 | else |
602 | { | |
603 | char *buffer; | |
604 | int nbytes; | |
2d2643f6 | 605 | int blksize = sd->period_size ? sd->period_size (sd) : 2048; |
a28de257 | 606 | int data_left = header->data_length; |
a4ff5d67 | 607 | |
d1299cde GM |
608 | buffer = (char *) alloca (blksize); |
609 | lseek (s->fd, sizeof *header, SEEK_SET); | |
a28de257 JD |
610 | while (data_left > 0 |
611 | && (nbytes = emacs_read (s->fd, buffer, blksize)) > 0) | |
612 | { | |
613 | /* Don't play possible garbage at the end of file */ | |
614 | if (data_left < nbytes) nbytes = data_left; | |
615 | data_left -= nbytes; | |
616 | sd->write (sd, buffer, nbytes); | |
617 | } | |
7840ced1 | 618 | |
d1299cde | 619 | if (nbytes < 0) |
62725a92 | 620 | sound_perror ("Error reading sound file"); |
d1299cde | 621 | } |
7840ced1 GM |
622 | } |
623 | ||
624 | ||
7840ced1 GM |
625 | /*********************************************************************** |
626 | Sun Audio (*.au) | |
627 | ***********************************************************************/ | |
628 | ||
a4ff5d67 | 629 | /* Sun audio file encodings. */ |
7840ced1 GM |
630 | |
631 | enum au_encoding | |
632 | { | |
633 | AU_ENCODING_ULAW_8 = 1, | |
634 | AU_ENCODING_8, | |
635 | AU_ENCODING_16, | |
636 | AU_ENCODING_24, | |
637 | AU_ENCODING_32, | |
638 | AU_ENCODING_IEEE32, | |
639 | AU_ENCODING_IEEE64, | |
2d2643f6 JD |
640 | AU_COMPRESSED = 23, |
641 | AU_ENCODING_ALAW_8 = 27 | |
7840ced1 GM |
642 | }; |
643 | ||
644 | ||
d1299cde | 645 | /* Try to initialize sound file S from S->header. S->header |
7840ced1 GM |
646 | contains the first MAX_SOUND_HEADER_BYTES number of bytes from the |
647 | sound file. If the file is a AU-format file, set up interface | |
d1299cde | 648 | functions in S and convert header fields to host byte-order. |
7840ced1 GM |
649 | Value is non-zero if the file is an AU file. */ |
650 | ||
651 | static int | |
971de7fb | 652 | au_init (struct sound *s) |
7840ced1 | 653 | { |
d1299cde | 654 | struct au_header *header = (struct au_header *) s->header; |
a4ff5d67 | 655 | |
d1299cde | 656 | if (s->header_size < sizeof *header |
72af86bd | 657 | || memcmp (s->header, ".snd", 4) != 0) |
7840ced1 | 658 | return 0; |
a4ff5d67 | 659 | |
7840ced1 GM |
660 | header->magic_number = be2hl (header->magic_number); |
661 | header->data_offset = be2hl (header->data_offset); | |
662 | header->data_size = be2hl (header->data_size); | |
663 | header->encoding = be2hl (header->encoding); | |
664 | header->sample_rate = be2hl (header->sample_rate); | |
665 | header->channels = be2hl (header->channels); | |
a4ff5d67 | 666 | |
7840ced1 | 667 | /* Set up the interface functions for AU. */ |
d1299cde GM |
668 | s->type = SUN_AUDIO; |
669 | s->play = au_play; | |
7840ced1 GM |
670 | |
671 | return 1; | |
672 | } | |
673 | ||
674 | ||
d1299cde | 675 | /* Play Sun audio file S on sound device SD. */ |
7840ced1 GM |
676 | |
677 | static void | |
971de7fb | 678 | au_play (struct sound *s, struct sound_device *sd) |
7840ced1 | 679 | { |
d1299cde | 680 | struct au_header *header = (struct au_header *) s->header; |
7840ced1 GM |
681 | |
682 | sd->sample_size = 0; | |
683 | sd->sample_rate = header->sample_rate; | |
684 | sd->bps = 0; | |
685 | sd->channels = header->channels; | |
d1299cde | 686 | sd->choose_format (sd, s); |
7840ced1 | 687 | sd->configure (sd); |
d1299cde GM |
688 | |
689 | if (STRINGP (s->data)) | |
d5db4077 KR |
690 | sd->write (sd, SDATA (s->data) + header->data_offset, |
691 | SBYTES (s->data) - header->data_offset); | |
d1299cde GM |
692 | else |
693 | { | |
2d2643f6 | 694 | int blksize = sd->period_size ? sd->period_size (sd) : 2048; |
d1299cde GM |
695 | char *buffer; |
696 | int nbytes; | |
a4ff5d67 | 697 | |
d1299cde GM |
698 | /* Seek */ |
699 | lseek (s->fd, header->data_offset, SEEK_SET); | |
a4ff5d67 | 700 | |
d1299cde GM |
701 | /* Copy sound data to the device. */ |
702 | buffer = (char *) alloca (blksize); | |
703 | while ((nbytes = emacs_read (s->fd, buffer, blksize)) > 0) | |
704 | sd->write (sd, buffer, nbytes); | |
a4ff5d67 | 705 | |
d1299cde | 706 | if (nbytes < 0) |
62725a92 | 707 | sound_perror ("Error reading sound file"); |
d1299cde | 708 | } |
7840ced1 GM |
709 | } |
710 | ||
711 | ||
7840ced1 GM |
712 | /*********************************************************************** |
713 | Voxware Driver Interface | |
714 | ***********************************************************************/ | |
715 | ||
716 | /* This driver is available on GNU/Linux, and the free BSDs. FreeBSD | |
717 | has a compatible own driver aka Luigi's driver. */ | |
718 | ||
719 | ||
720 | /* Open device SD. If SD->file is non-null, open that device, | |
721 | otherwise use a default device name. */ | |
722 | ||
723 | static void | |
971de7fb | 724 | vox_open (struct sound_device *sd) |
7840ced1 | 725 | { |
8ea90aa3 | 726 | const char *file; |
a4ff5d67 | 727 | |
7840ced1 GM |
728 | /* Open the sound device. Default is /dev/dsp. */ |
729 | if (sd->file) | |
730 | file = sd->file; | |
731 | else | |
80fcd514 | 732 | file = DEFAULT_SOUND_DEVICE; |
a4ff5d67 | 733 | |
68c45bf0 | 734 | sd->fd = emacs_open (file, O_WRONLY, 0); |
7840ced1 GM |
735 | if (sd->fd < 0) |
736 | sound_perror (file); | |
737 | } | |
738 | ||
739 | ||
740 | /* Configure device SD from parameters in it. */ | |
741 | ||
742 | static void | |
971de7fb | 743 | vox_configure (struct sound_device *sd) |
7840ced1 | 744 | { |
28fcb7dc | 745 | int val; |
a4ff5d67 | 746 | |
7840ced1 GM |
747 | xassert (sd->fd >= 0); |
748 | ||
bb6e8cee GM |
749 | /* On GNU/Linux, it seems that the device driver doesn't like to be |
750 | interrupted by a signal. Block the ones we know to cause | |
751 | troubles. */ | |
b5cb1ada | 752 | turn_on_atimers (0); |
bb6e8cee GM |
753 | #ifdef SIGIO |
754 | sigblock (sigmask (SIGIO)); | |
755 | #endif | |
b5cb1ada | 756 | |
28fcb7dc GM |
757 | val = sd->format; |
758 | if (ioctl (sd->fd, SNDCTL_DSP_SETFMT, &sd->format) < 0 | |
759 | || val != sd->format) | |
62725a92 | 760 | sound_perror ("Could not set sound format"); |
7840ced1 | 761 | |
28fcb7dc GM |
762 | val = sd->channels != 1; |
763 | if (ioctl (sd->fd, SNDCTL_DSP_STEREO, &val) < 0 | |
764 | || val != (sd->channels != 1)) | |
62725a92 | 765 | sound_perror ("Could not set stereo/mono"); |
7840ced1 | 766 | |
28fcb7dc GM |
767 | /* I think bps and sampling_rate are the same, but who knows. |
768 | Check this. and use SND_DSP_SPEED for both. */ | |
769 | if (sd->sample_rate > 0) | |
770 | { | |
771 | val = sd->sample_rate; | |
62725a92 GM |
772 | if (ioctl (sd->fd, SNDCTL_DSP_SPEED, &sd->sample_rate) < 0) |
773 | sound_perror ("Could not set sound speed"); | |
774 | else if (val != sd->sample_rate) | |
775 | sound_warning ("Could not set sample rate"); | |
28fcb7dc | 776 | } |
7840ced1 | 777 | |
3887b449 GM |
778 | if (sd->volume > 0) |
779 | { | |
780 | int volume = sd->volume & 0xff; | |
781 | volume |= volume << 8; | |
28fcb7dc GM |
782 | /* This may fail if there is no mixer. Ignore the failure. */ |
783 | ioctl (sd->fd, SOUND_MIXER_WRITE_PCM, &volume); | |
3887b449 | 784 | } |
a4ff5d67 | 785 | |
b5cb1ada | 786 | turn_on_atimers (1); |
bb6e8cee GM |
787 | #ifdef SIGIO |
788 | sigunblock (sigmask (SIGIO)); | |
789 | #endif | |
7840ced1 GM |
790 | } |
791 | ||
792 | ||
793 | /* Close device SD if it is open. */ | |
794 | ||
795 | static void | |
971de7fb | 796 | vox_close (struct sound_device *sd) |
7840ced1 GM |
797 | { |
798 | if (sd->fd >= 0) | |
799 | { | |
bb6e8cee GM |
800 | /* On GNU/Linux, it seems that the device driver doesn't like to |
801 | be interrupted by a signal. Block the ones we know to cause | |
802 | troubles. */ | |
803 | #ifdef SIGIO | |
804 | sigblock (sigmask (SIGIO)); | |
805 | #endif | |
b5cb1ada | 806 | turn_on_atimers (0); |
a4ff5d67 | 807 | |
bb6e8cee | 808 | /* Flush sound data, and reset the device. */ |
7840ced1 | 809 | ioctl (sd->fd, SNDCTL_DSP_SYNC, NULL); |
a4ff5d67 | 810 | |
b5cb1ada | 811 | turn_on_atimers (1); |
bb6e8cee GM |
812 | #ifdef SIGIO |
813 | sigunblock (sigmask (SIGIO)); | |
814 | #endif | |
7840ced1 GM |
815 | |
816 | /* Close the device. */ | |
68c45bf0 | 817 | emacs_close (sd->fd); |
7840ced1 GM |
818 | sd->fd = -1; |
819 | } | |
820 | } | |
821 | ||
822 | ||
d1299cde | 823 | /* Choose device-dependent format for device SD from sound file S. */ |
7840ced1 GM |
824 | |
825 | static void | |
971de7fb | 826 | vox_choose_format (struct sound_device *sd, struct sound *s) |
7840ced1 | 827 | { |
d1299cde | 828 | if (s->type == RIFF) |
7840ced1 | 829 | { |
d1299cde | 830 | struct wav_header *h = (struct wav_header *) s->header; |
7840ced1 GM |
831 | if (h->precision == 8) |
832 | sd->format = AFMT_U8; | |
833 | else if (h->precision == 16) | |
834 | sd->format = AFMT_S16_LE; | |
835 | else | |
836 | error ("Unsupported WAV file format"); | |
837 | } | |
d1299cde | 838 | else if (s->type == SUN_AUDIO) |
7840ced1 | 839 | { |
d1299cde | 840 | struct au_header *header = (struct au_header *) s->header; |
7840ced1 GM |
841 | switch (header->encoding) |
842 | { | |
843 | case AU_ENCODING_ULAW_8: | |
844 | case AU_ENCODING_IEEE32: | |
845 | case AU_ENCODING_IEEE64: | |
846 | sd->format = AFMT_MU_LAW; | |
847 | break; | |
a4ff5d67 | 848 | |
7840ced1 GM |
849 | case AU_ENCODING_8: |
850 | case AU_ENCODING_16: | |
851 | case AU_ENCODING_24: | |
852 | case AU_ENCODING_32: | |
853 | sd->format = AFMT_S16_LE; | |
854 | break; | |
855 | ||
856 | default: | |
857 | error ("Unsupported AU file format"); | |
858 | } | |
859 | } | |
860 | else | |
861 | abort (); | |
862 | } | |
863 | ||
864 | ||
865 | /* Initialize device SD. Set up the interface functions in the device | |
866 | structure. */ | |
867 | ||
2d2643f6 | 868 | static int |
971de7fb | 869 | vox_init (struct sound_device *sd) |
7840ced1 | 870 | { |
8ea90aa3 | 871 | const char *file; |
2d2643f6 JD |
872 | int fd; |
873 | ||
874 | /* Open the sound device. Default is /dev/dsp. */ | |
875 | if (sd->file) | |
876 | file = sd->file; | |
877 | else | |
878 | file = DEFAULT_SOUND_DEVICE; | |
879 | fd = emacs_open (file, O_WRONLY, 0); | |
880 | if (fd >= 0) | |
881 | emacs_close (fd); | |
882 | else | |
883 | return 0; | |
884 | ||
7840ced1 GM |
885 | sd->fd = -1; |
886 | sd->open = vox_open; | |
887 | sd->close = vox_close; | |
888 | sd->configure = vox_configure; | |
889 | sd->choose_format = vox_choose_format; | |
890 | sd->write = vox_write; | |
2d2643f6 JD |
891 | sd->period_size = NULL; |
892 | ||
893 | return 1; | |
7840ced1 GM |
894 | } |
895 | ||
7840ced1 GM |
896 | /* Write NBYTES bytes from BUFFER to device SD. */ |
897 | ||
898 | static void | |
971de7fb | 899 | vox_write (struct sound_device *sd, const char *buffer, int nbytes) |
7840ced1 | 900 | { |
68c45bf0 | 901 | int nwritten = emacs_write (sd->fd, buffer, nbytes); |
7840ced1 | 902 | if (nwritten < 0) |
62725a92 | 903 | sound_perror ("Error writing to sound device"); |
7840ced1 GM |
904 | } |
905 | ||
2d2643f6 JD |
906 | #ifdef HAVE_ALSA |
907 | /*********************************************************************** | |
908 | ALSA Driver Interface | |
909 | ***********************************************************************/ | |
910 | ||
911 | /* This driver is available on GNU/Linux. */ | |
912 | ||
913 | static void | |
8ea90aa3 | 914 | alsa_sound_perror (const char *msg, int err) |
2d2643f6 JD |
915 | { |
916 | error ("%s: %s", msg, snd_strerror (err)); | |
917 | } | |
918 | ||
919 | struct alsa_params | |
920 | { | |
921 | snd_pcm_t *handle; | |
922 | snd_pcm_hw_params_t *hwparams; | |
923 | snd_pcm_sw_params_t *swparams; | |
924 | snd_pcm_uframes_t period_size; | |
925 | }; | |
926 | ||
927 | /* Open device SD. If SD->file is non-null, open that device, | |
928 | otherwise use a default device name. */ | |
929 | ||
930 | static void | |
971de7fb | 931 | alsa_open (struct sound_device *sd) |
2d2643f6 | 932 | { |
8ea90aa3 | 933 | const char *file; |
2d2643f6 JD |
934 | struct alsa_params *p; |
935 | int err; | |
936 | ||
937 | /* Open the sound device. Default is "default". */ | |
938 | if (sd->file) | |
939 | file = sd->file; | |
940 | else | |
941 | file = DEFAULT_ALSA_SOUND_DEVICE; | |
942 | ||
943 | p = xmalloc (sizeof (*p)); | |
944 | p->handle = NULL; | |
945 | p->hwparams = NULL; | |
946 | p->swparams = NULL; | |
947 | ||
948 | sd->fd = -1; | |
949 | sd->data = p; | |
950 | ||
951 | ||
3fc7a865 JD |
952 | err = snd_pcm_open (&p->handle, file, SND_PCM_STREAM_PLAYBACK, 0); |
953 | if (err < 0) | |
2d2643f6 JD |
954 | alsa_sound_perror (file, err); |
955 | } | |
956 | ||
957 | static int | |
971de7fb | 958 | alsa_period_size (struct sound_device *sd) |
2d2643f6 JD |
959 | { |
960 | struct alsa_params *p = (struct alsa_params *) sd->data; | |
a28de257 JD |
961 | int fact = snd_pcm_format_size (sd->format, 1) * sd->channels; |
962 | return p->period_size * (fact > 0 ? fact : 1); | |
2d2643f6 JD |
963 | } |
964 | ||
965 | static void | |
971de7fb | 966 | alsa_configure (struct sound_device *sd) |
2d2643f6 JD |
967 | { |
968 | int val, err, dir; | |
dcc88121 | 969 | unsigned uval; |
2d2643f6 JD |
970 | struct alsa_params *p = (struct alsa_params *) sd->data; |
971 | snd_pcm_uframes_t buffer_size; | |
972 | ||
973 | xassert (p->handle != 0); | |
974 | ||
3fc7a865 JD |
975 | err = snd_pcm_hw_params_malloc (&p->hwparams); |
976 | if (err < 0) | |
2d2643f6 JD |
977 | alsa_sound_perror ("Could not allocate hardware parameter structure", err); |
978 | ||
3fc7a865 JD |
979 | err = snd_pcm_sw_params_malloc (&p->swparams); |
980 | if (err < 0) | |
2d2643f6 JD |
981 | alsa_sound_perror ("Could not allocate software parameter structure", err); |
982 | ||
3fc7a865 JD |
983 | err = snd_pcm_hw_params_any (p->handle, p->hwparams); |
984 | if (err < 0) | |
2d2643f6 JD |
985 | alsa_sound_perror ("Could not initialize hardware parameter structure", err); |
986 | ||
3fc7a865 JD |
987 | err = snd_pcm_hw_params_set_access (p->handle, p->hwparams, |
988 | SND_PCM_ACCESS_RW_INTERLEAVED); | |
989 | if (err < 0) | |
2d2643f6 JD |
990 | alsa_sound_perror ("Could not set access type", err); |
991 | ||
992 | val = sd->format; | |
3fc7a865 | 993 | err = snd_pcm_hw_params_set_format (p->handle, p->hwparams, val); |
ed1f0a45 | 994 | if (err < 0) |
2d2643f6 JD |
995 | alsa_sound_perror ("Could not set sound format", err); |
996 | ||
dcc88121 JD |
997 | uval = sd->sample_rate; |
998 | err = snd_pcm_hw_params_set_rate_near (p->handle, p->hwparams, &uval, 0); | |
3fc7a865 | 999 | if (err < 0) |
2d2643f6 | 1000 | alsa_sound_perror ("Could not set sample rate", err); |
ed1f0a45 | 1001 | |
2d2643f6 | 1002 | val = sd->channels; |
3fc7a865 JD |
1003 | err = snd_pcm_hw_params_set_channels (p->handle, p->hwparams, val); |
1004 | if (err < 0) | |
2d2643f6 JD |
1005 | alsa_sound_perror ("Could not set channel count", err); |
1006 | ||
3fc7a865 JD |
1007 | err = snd_pcm_hw_params (p->handle, p->hwparams); |
1008 | if (err < 0) | |
07a7837c JD |
1009 | alsa_sound_perror ("Could not set parameters", err); |
1010 | ||
2d2643f6 JD |
1011 | |
1012 | err = snd_pcm_hw_params_get_period_size (p->hwparams, &p->period_size, &dir); | |
1013 | if (err < 0) | |
1014 | alsa_sound_perror ("Unable to get period size for playback", err); | |
1015 | ||
1016 | err = snd_pcm_hw_params_get_buffer_size (p->hwparams, &buffer_size); | |
1017 | if (err < 0) | |
1018 | alsa_sound_perror("Unable to get buffer size for playback", err); | |
1019 | ||
2d2643f6 JD |
1020 | err = snd_pcm_sw_params_current (p->handle, p->swparams); |
1021 | if (err < 0) | |
1022 | alsa_sound_perror ("Unable to determine current swparams for playback", | |
1023 | err); | |
1024 | ||
1025 | /* Start the transfer when the buffer is almost full */ | |
1026 | err = snd_pcm_sw_params_set_start_threshold (p->handle, p->swparams, | |
1027 | (buffer_size / p->period_size) | |
1028 | * p->period_size); | |
1029 | if (err < 0) | |
1030 | alsa_sound_perror ("Unable to set start threshold mode for playback", err); | |
1031 | ||
1032 | /* Allow the transfer when at least period_size samples can be processed */ | |
1033 | err = snd_pcm_sw_params_set_avail_min (p->handle, p->swparams, p->period_size); | |
1034 | if (err < 0) | |
1035 | alsa_sound_perror ("Unable to set avail min for playback", err); | |
1036 | ||
2d2643f6 JD |
1037 | err = snd_pcm_sw_params (p->handle, p->swparams); |
1038 | if (err < 0) | |
1039 | alsa_sound_perror ("Unable to set sw params for playback\n", err); | |
1040 | ||
1041 | snd_pcm_hw_params_free (p->hwparams); | |
1042 | p->hwparams = NULL; | |
1043 | snd_pcm_sw_params_free (p->swparams); | |
1044 | p->swparams = NULL; | |
ed1f0a45 | 1045 | |
3fc7a865 JD |
1046 | err = snd_pcm_prepare (p->handle); |
1047 | if (err < 0) | |
2d2643f6 | 1048 | alsa_sound_perror ("Could not prepare audio interface for use", err); |
ed1f0a45 | 1049 | |
2d2643f6 JD |
1050 | if (sd->volume > 0) |
1051 | { | |
1052 | int chn; | |
1053 | snd_mixer_t *handle; | |
1054 | snd_mixer_elem_t *e; | |
8ea90aa3 | 1055 | const char *file = sd->file ? sd->file : DEFAULT_ALSA_SOUND_DEVICE; |
2d2643f6 JD |
1056 | |
1057 | if (snd_mixer_open (&handle, 0) >= 0) | |
1058 | { | |
1059 | if (snd_mixer_attach (handle, file) >= 0 | |
1060 | && snd_mixer_load (handle) >= 0 | |
1061 | && snd_mixer_selem_register (handle, NULL, NULL) >= 0) | |
1062 | for (e = snd_mixer_first_elem (handle); | |
1063 | e; | |
1064 | e = snd_mixer_elem_next (e)) | |
1065 | { | |
1066 | if (snd_mixer_selem_has_playback_volume (e)) | |
1067 | { | |
646d0d12 | 1068 | long pmin, pmax, vol; |
2d2643f6 | 1069 | snd_mixer_selem_get_playback_volume_range (e, &pmin, &pmax); |
646d0d12 | 1070 | vol = pmin + (sd->volume * (pmax - pmin)) / 100; |
ed1f0a45 | 1071 | |
2d2643f6 JD |
1072 | for (chn = 0; chn <= SND_MIXER_SCHN_LAST; chn++) |
1073 | snd_mixer_selem_set_playback_volume (e, chn, vol); | |
1074 | } | |
1075 | } | |
1076 | snd_mixer_close(handle); | |
1077 | } | |
1078 | } | |
1079 | } | |
1080 | ||
1081 | ||
1082 | /* Close device SD if it is open. */ | |
1083 | ||
1084 | static void | |
971de7fb | 1085 | alsa_close (struct sound_device *sd) |
2d2643f6 JD |
1086 | { |
1087 | struct alsa_params *p = (struct alsa_params *) sd->data; | |
1088 | if (p) | |
1089 | { | |
1090 | if (p->hwparams) | |
1091 | snd_pcm_hw_params_free (p->hwparams); | |
1092 | if (p->swparams) | |
1093 | snd_pcm_sw_params_free (p->swparams); | |
1094 | if (p->handle) | |
1095 | { | |
dcc88121 | 1096 | snd_pcm_drain (p->handle); |
2d2643f6 JD |
1097 | snd_pcm_close (p->handle); |
1098 | } | |
1099 | free (p); | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | /* Choose device-dependent format for device SD from sound file S. */ | |
1104 | ||
1105 | static void | |
971de7fb | 1106 | alsa_choose_format (struct sound_device *sd, struct sound *s) |
2d2643f6 JD |
1107 | { |
1108 | struct alsa_params *p = (struct alsa_params *) sd->data; | |
1109 | if (s->type == RIFF) | |
1110 | { | |
1111 | struct wav_header *h = (struct wav_header *) s->header; | |
1112 | if (h->precision == 8) | |
1113 | sd->format = SND_PCM_FORMAT_U8; | |
1114 | else if (h->precision == 16) | |
1115 | sd->format = SND_PCM_FORMAT_S16_LE; | |
1116 | else | |
1117 | error ("Unsupported WAV file format"); | |
1118 | } | |
1119 | else if (s->type == SUN_AUDIO) | |
1120 | { | |
1121 | struct au_header *header = (struct au_header *) s->header; | |
1122 | switch (header->encoding) | |
1123 | { | |
1124 | case AU_ENCODING_ULAW_8: | |
1125 | sd->format = SND_PCM_FORMAT_MU_LAW; | |
1126 | break; | |
1127 | case AU_ENCODING_ALAW_8: | |
1128 | sd->format = SND_PCM_FORMAT_A_LAW; | |
1129 | break; | |
1130 | case AU_ENCODING_IEEE32: | |
1131 | sd->format = SND_PCM_FORMAT_FLOAT_BE; | |
1132 | break; | |
1133 | case AU_ENCODING_IEEE64: | |
1134 | sd->format = SND_PCM_FORMAT_FLOAT64_BE; | |
1135 | break; | |
1136 | case AU_ENCODING_8: | |
1137 | sd->format = SND_PCM_FORMAT_S8; | |
1138 | break; | |
1139 | case AU_ENCODING_16: | |
1140 | sd->format = SND_PCM_FORMAT_S16_BE; | |
1141 | break; | |
1142 | case AU_ENCODING_24: | |
1143 | sd->format = SND_PCM_FORMAT_S24_BE; | |
1144 | break; | |
1145 | case AU_ENCODING_32: | |
1146 | sd->format = SND_PCM_FORMAT_S32_BE; | |
1147 | break; | |
1148 | ||
1149 | default: | |
1150 | error ("Unsupported AU file format"); | |
1151 | } | |
1152 | } | |
1153 | else | |
1154 | abort (); | |
1155 | } | |
1156 | ||
1157 | ||
1158 | /* Write NBYTES bytes from BUFFER to device SD. */ | |
1159 | ||
1160 | static void | |
971de7fb | 1161 | alsa_write (struct sound_device *sd, const char *buffer, int nbytes) |
2d2643f6 JD |
1162 | { |
1163 | struct alsa_params *p = (struct alsa_params *) sd->data; | |
1164 | ||
1165 | /* The the third parameter to snd_pcm_writei is frames, not bytes. */ | |
1166 | int fact = snd_pcm_format_size (sd->format, 1) * sd->channels; | |
1167 | int nwritten = 0; | |
1168 | int err; | |
1169 | ||
1170 | while (nwritten < nbytes) | |
1171 | { | |
a28de257 JD |
1172 | snd_pcm_uframes_t frames = (nbytes - nwritten)/fact; |
1173 | if (frames == 0) break; | |
24f01470 | 1174 | |
a28de257 | 1175 | err = snd_pcm_writei (p->handle, buffer + nwritten, frames); |
3fc7a865 | 1176 | if (err < 0) |
2d2643f6 | 1177 | { |
2d2643f6 JD |
1178 | if (err == -EPIPE) |
1179 | { /* under-run */ | |
1180 | err = snd_pcm_prepare (p->handle); | |
1181 | if (err < 0) | |
1182 | alsa_sound_perror ("Can't recover from underrun, prepare failed", | |
1183 | err); | |
1184 | } | |
1185 | else if (err == -ESTRPIPE) | |
1186 | { | |
1187 | while ((err = snd_pcm_resume (p->handle)) == -EAGAIN) | |
1188 | sleep(1); /* wait until the suspend flag is released */ | |
1189 | if (err < 0) | |
1190 | { | |
1191 | err = snd_pcm_prepare (p->handle); | |
1192 | if (err < 0) | |
1193 | alsa_sound_perror ("Can't recover from suspend, " | |
1194 | "prepare failed", | |
1195 | err); | |
1196 | } | |
1197 | } | |
ed1f0a45 | 1198 | else |
2d2643f6 | 1199 | alsa_sound_perror ("Error writing to sound device", err); |
ed1f0a45 | 1200 | |
2d2643f6 JD |
1201 | } |
1202 | else | |
1203 | nwritten += err * fact; | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | static void | |
7c3320d8 JB |
1208 | snd_error_quiet (const char *file, int line, const char *function, int err, |
1209 | const char *fmt) | |
2d2643f6 JD |
1210 | { |
1211 | } | |
1212 | ||
1213 | /* Initialize device SD. Set up the interface functions in the device | |
1214 | structure. */ | |
1215 | ||
1216 | static int | |
971de7fb | 1217 | alsa_init (struct sound_device *sd) |
2d2643f6 | 1218 | { |
8ea90aa3 | 1219 | const char *file; |
2d2643f6 JD |
1220 | snd_pcm_t *handle; |
1221 | int err; | |
1222 | ||
1223 | /* Open the sound device. Default is "default". */ | |
1224 | if (sd->file) | |
1225 | file = sd->file; | |
1226 | else | |
1227 | file = DEFAULT_ALSA_SOUND_DEVICE; | |
1228 | ||
1229 | snd_lib_error_set_handler ((snd_lib_error_handler_t) snd_error_quiet); | |
1230 | err = snd_pcm_open (&handle, file, SND_PCM_STREAM_PLAYBACK, 0); | |
1231 | snd_lib_error_set_handler (NULL); | |
1232 | if (err < 0) | |
dcc88121 JD |
1233 | return 0; |
1234 | snd_pcm_close (handle); | |
2d2643f6 JD |
1235 | |
1236 | sd->fd = -1; | |
1237 | sd->open = alsa_open; | |
1238 | sd->close = alsa_close; | |
1239 | sd->configure = alsa_configure; | |
1240 | sd->choose_format = alsa_choose_format; | |
1241 | sd->write = alsa_write; | |
1242 | sd->period_size = alsa_period_size; | |
1243 | ||
1244 | return 1; | |
1245 | } | |
1246 | ||
1247 | #endif /* HAVE_ALSA */ | |
1248 | ||
1249 | ||
f60ae425 BK |
1250 | /* END: Non Windows functions */ |
1251 | #else /* WINDOWSNT */ | |
1252 | ||
1253 | /* BEGIN: Windows specific functions */ | |
1254 | ||
8db52afe JB |
1255 | #define SOUND_WARNING(fun, error, text) \ |
1256 | { \ | |
1257 | char buf[1024]; \ | |
1258 | char err_string[MAXERRORLENGTH]; \ | |
24f01470 | 1259 | fun (error, err_string, sizeof (err_string)); \ |
8db52afe JB |
1260 | _snprintf (buf, sizeof (buf), "%s\nError: %s", \ |
1261 | text, err_string); \ | |
1262 | sound_warning (buf); \ | |
24f01470 JB |
1263 | } |
1264 | ||
f60ae425 | 1265 | static int |
7c3320d8 | 1266 | do_play_sound (const char *psz_file, unsigned long ui_volume) |
f60ae425 | 1267 | { |
06c3eeed JB |
1268 | int i_result = 0; |
1269 | MCIERROR mci_error = 0; | |
1270 | char sz_cmd_buf[520] = {0}; | |
1271 | char sz_ret_buf[520] = {0}; | |
1272 | MMRESULT mm_result = MMSYSERR_NOERROR; | |
1273 | unsigned long ui_volume_org = 0; | |
1274 | BOOL b_reset_volume = FALSE; | |
1275 | ||
24f01470 JB |
1276 | memset (sz_cmd_buf, 0, sizeof (sz_cmd_buf)); |
1277 | memset (sz_ret_buf, 0, sizeof (sz_ret_buf)); | |
06c3eeed JB |
1278 | sprintf (sz_cmd_buf, |
1279 | "open \"%s\" alias GNUEmacs_PlaySound_Device wait", | |
1280 | psz_file); | |
24f01470 | 1281 | mci_error = mciSendString (sz_cmd_buf, sz_ret_buf, sizeof (sz_ret_buf), NULL); |
f60ae425 BK |
1282 | if (mci_error != 0) |
1283 | { | |
24f01470 JB |
1284 | SOUND_WARNING (mciGetErrorString, mci_error, |
1285 | "The open mciSendString command failed to open " | |
1286 | "the specified sound file."); | |
06c3eeed | 1287 | i_result = (int) mci_error; |
f60ae425 BK |
1288 | return i_result; |
1289 | } | |
1290 | if ((ui_volume > 0) && (ui_volume != UINT_MAX)) | |
1291 | { | |
06c3eeed | 1292 | mm_result = waveOutGetVolume ((HWAVEOUT) WAVE_MAPPER, &ui_volume_org); |
f60ae425 BK |
1293 | if (mm_result == MMSYSERR_NOERROR) |
1294 | { | |
06c3eeed JB |
1295 | b_reset_volume = TRUE; |
1296 | mm_result = waveOutSetVolume ((HWAVEOUT) WAVE_MAPPER, ui_volume); | |
24f01470 | 1297 | if (mm_result != MMSYSERR_NOERROR) |
f60ae425 | 1298 | { |
24f01470 JB |
1299 | SOUND_WARNING (waveOutGetErrorText, mm_result, |
1300 | "waveOutSetVolume failed to set the volume level " | |
1301 | "of the WAVE_MAPPER device.\n" | |
1302 | "As a result, the user selected volume level will " | |
1303 | "not be used."); | |
f60ae425 BK |
1304 | } |
1305 | } | |
1306 | else | |
1307 | { | |
24f01470 JB |
1308 | SOUND_WARNING (waveOutGetErrorText, mm_result, |
1309 | "waveOutGetVolume failed to obtain the original " | |
06c3eeed | 1310 | "volume level of the WAVE_MAPPER device.\n" |
24f01470 | 1311 | "As a result, the user selected volume level will " |
06c3eeed | 1312 | "not be used."); |
f60ae425 BK |
1313 | } |
1314 | } | |
24f01470 JB |
1315 | memset (sz_cmd_buf, 0, sizeof (sz_cmd_buf)); |
1316 | memset (sz_ret_buf, 0, sizeof (sz_ret_buf)); | |
f60ae425 | 1317 | strcpy (sz_cmd_buf, "play GNUEmacs_PlaySound_Device wait"); |
24f01470 | 1318 | mci_error = mciSendString (sz_cmd_buf, sz_ret_buf, sizeof (sz_ret_buf), NULL); |
f60ae425 BK |
1319 | if (mci_error != 0) |
1320 | { | |
24f01470 JB |
1321 | SOUND_WARNING (mciGetErrorString, mci_error, |
1322 | "The play mciSendString command failed to play the " | |
1323 | "opened sound file."); | |
06c3eeed | 1324 | i_result = (int) mci_error; |
f60ae425 | 1325 | } |
24f01470 JB |
1326 | memset (sz_cmd_buf, 0, sizeof (sz_cmd_buf)); |
1327 | memset (sz_ret_buf, 0, sizeof (sz_ret_buf)); | |
f60ae425 | 1328 | strcpy (sz_cmd_buf, "close GNUEmacs_PlaySound_Device wait"); |
24f01470 | 1329 | mci_error = mciSendString (sz_cmd_buf, sz_ret_buf, sizeof (sz_ret_buf), NULL); |
f60ae425 BK |
1330 | if (b_reset_volume == TRUE) |
1331 | { | |
24f01470 | 1332 | mm_result = waveOutSetVolume ((HWAVEOUT) WAVE_MAPPER, ui_volume_org); |
f60ae425 BK |
1333 | if (mm_result != MMSYSERR_NOERROR) |
1334 | { | |
24f01470 JB |
1335 | SOUND_WARNING (waveOutGetErrorText, mm_result, |
1336 | "waveOutSetVolume failed to reset the original volume " | |
06c3eeed | 1337 | "level of the WAVE_MAPPER device."); |
f60ae425 BK |
1338 | } |
1339 | } | |
1340 | return i_result; | |
1341 | } | |
1342 | ||
1343 | /* END: Windows specific functions */ | |
1344 | ||
1345 | #endif /* WINDOWSNT */ | |
1346 | ||
f60ae425 BK |
1347 | DEFUN ("play-sound-internal", Fplay_sound_internal, Splay_sound_internal, 1, 1, 0, |
1348 | doc: /* Play sound SOUND. | |
1349 | ||
ed1f0a45 | 1350 | Internal use only, use `play-sound' instead. */) |
5842a27b | 1351 | (Lisp_Object sound) |
f60ae425 BK |
1352 | { |
1353 | Lisp_Object attrs[SOUND_ATTR_SENTINEL]; | |
1354 | int count = SPECPDL_INDEX (); | |
1355 | ||
1356 | #ifndef WINDOWSNT | |
1357 | Lisp_Object file; | |
1358 | struct gcpro gcpro1, gcpro2; | |
f60ae425 BK |
1359 | Lisp_Object args[2]; |
1360 | #else /* WINDOWSNT */ | |
06c3eeed JB |
1361 | int len = 0; |
1362 | Lisp_Object lo_file = {0}; | |
1363 | char * psz_file = NULL; | |
1364 | unsigned long ui_volume_tmp = UINT_MAX; | |
1365 | unsigned long ui_volume = UINT_MAX; | |
1366 | int i_result = 0; | |
f60ae425 BK |
1367 | #endif /* WINDOWSNT */ |
1368 | ||
1369 | /* Parse the sound specification. Give up if it is invalid. */ | |
1370 | if (!parse_sound (sound, attrs)) | |
1371 | error ("Invalid sound specification"); | |
1372 | ||
1373 | #ifndef WINDOWSNT | |
1374 | file = Qnil; | |
1375 | GCPRO2 (sound, file); | |
8e6ec322 | 1376 | current_sound_device = (struct sound_device *) xmalloc (sizeof (struct sound_device)); |
72af86bd | 1377 | memset (current_sound_device, 0, sizeof (struct sound_device)); |
8e6ec322 | 1378 | current_sound = (struct sound *) xmalloc (sizeof (struct sound)); |
72af86bd | 1379 | memset (current_sound, 0, sizeof (struct sound)); |
f60ae425 | 1380 | record_unwind_protect (sound_cleanup, Qnil); |
8e6ec322 | 1381 | current_sound->header = (char *) alloca (MAX_SOUND_HEADER_BYTES); |
f60ae425 BK |
1382 | |
1383 | if (STRINGP (attrs[SOUND_FILE])) | |
1384 | { | |
1385 | /* Open the sound file. */ | |
8e6ec322 RS |
1386 | current_sound->fd = openp (Fcons (Vdata_directory, Qnil), |
1387 | attrs[SOUND_FILE], Qnil, &file, Qnil); | |
1388 | if (current_sound->fd < 0) | |
f60ae425 BK |
1389 | sound_perror ("Could not open sound file"); |
1390 | ||
1391 | /* Read the first bytes from the file. */ | |
8e6ec322 RS |
1392 | current_sound->header_size |
1393 | = emacs_read (current_sound->fd, current_sound->header, | |
1394 | MAX_SOUND_HEADER_BYTES); | |
1395 | if (current_sound->header_size < 0) | |
f60ae425 BK |
1396 | sound_perror ("Invalid sound file header"); |
1397 | } | |
1398 | else | |
1399 | { | |
8e6ec322 RS |
1400 | current_sound->data = attrs[SOUND_DATA]; |
1401 | current_sound->header_size = min (MAX_SOUND_HEADER_BYTES, SBYTES (current_sound->data)); | |
72af86bd AS |
1402 | memcpy (current_sound->header, SDATA (current_sound->data), |
1403 | current_sound->header_size); | |
f60ae425 BK |
1404 | } |
1405 | ||
1406 | /* Find out the type of sound. Give up if we can't tell. */ | |
8e6ec322 | 1407 | find_sound_type (current_sound); |
f60ae425 BK |
1408 | |
1409 | /* Set up a device. */ | |
1410 | if (STRINGP (attrs[SOUND_DEVICE])) | |
1411 | { | |
1412 | int len = SCHARS (attrs[SOUND_DEVICE]); | |
8e6ec322 RS |
1413 | current_sound_device->file = (char *) alloca (len + 1); |
1414 | strcpy (current_sound_device->file, SDATA (attrs[SOUND_DEVICE])); | |
f60ae425 BK |
1415 | } |
1416 | ||
1417 | if (INTEGERP (attrs[SOUND_VOLUME])) | |
8e6ec322 | 1418 | current_sound_device->volume = XFASTINT (attrs[SOUND_VOLUME]); |
f60ae425 | 1419 | else if (FLOATP (attrs[SOUND_VOLUME])) |
8e6ec322 | 1420 | current_sound_device->volume = XFLOAT_DATA (attrs[SOUND_VOLUME]) * 100; |
7840ced1 | 1421 | |
f60ae425 BK |
1422 | args[0] = Qplay_sound_functions; |
1423 | args[1] = sound; | |
1424 | Frun_hook_with_args (2, args); | |
1425 | ||
2d2643f6 JD |
1426 | #ifdef HAVE_ALSA |
1427 | if (!alsa_init (current_sound_device)) | |
1428 | #endif | |
1429 | if (!vox_init (current_sound_device)) | |
1430 | error ("No usable sound device driver found"); | |
f60ae425 BK |
1431 | |
1432 | /* Open the device. */ | |
8e6ec322 | 1433 | current_sound_device->open (current_sound_device); |
f60ae425 BK |
1434 | |
1435 | /* Play the sound. */ | |
8e6ec322 | 1436 | current_sound->play (current_sound, current_sound_device); |
f60ae425 BK |
1437 | |
1438 | /* Clean up. */ | |
f60ae425 | 1439 | UNGCPRO; |
06c3eeed | 1440 | |
f60ae425 | 1441 | #else /* WINDOWSNT */ |
06c3eeed JB |
1442 | |
1443 | lo_file = Fexpand_file_name (attrs[SOUND_FILE], Qnil); | |
1444 | len = XSTRING (lo_file)->size; | |
1445 | psz_file = (char *) alloca (len + 1); | |
f60ae425 BK |
1446 | strcpy (psz_file, XSTRING (lo_file)->data); |
1447 | if (INTEGERP (attrs[SOUND_VOLUME])) | |
1448 | { | |
06c3eeed | 1449 | ui_volume_tmp = XFASTINT (attrs[SOUND_VOLUME]); |
f60ae425 BK |
1450 | } |
1451 | else if (FLOATP (attrs[SOUND_VOLUME])) | |
1452 | { | |
06c3eeed | 1453 | ui_volume_tmp = (unsigned long) XFLOAT_DATA (attrs[SOUND_VOLUME]) * 100; |
f60ae425 BK |
1454 | } |
1455 | /* | |
1456 | Based on some experiments I have conducted, a value of 100 or less | |
1457 | for the sound volume is much too low. You cannot even hear it. | |
1458 | A value of UINT_MAX indicates that you wish for the sound to played | |
1459 | at the maximum possible volume. A value of UINT_MAX/2 plays the | |
1460 | sound at 50% maximum volume. Therefore the value passed to do_play_sound | |
06c3eeed | 1461 | (and thus to waveOutSetVolume) must be some fraction of UINT_MAX. |
f60ae425 | 1462 | The following code adjusts the user specified volume level appropriately. |
06c3eeed | 1463 | */ |
f60ae425 BK |
1464 | if ((ui_volume_tmp > 0) && (ui_volume_tmp <= 100)) |
1465 | { | |
06c3eeed | 1466 | ui_volume = ui_volume_tmp * (UINT_MAX / 100); |
f60ae425 | 1467 | } |
06c3eeed JB |
1468 | i_result = do_play_sound (psz_file, ui_volume); |
1469 | ||
f60ae425 | 1470 | #endif /* WINDOWSNT */ |
06c3eeed | 1471 | |
f60ae425 BK |
1472 | unbind_to (count, Qnil); |
1473 | return Qnil; | |
1474 | } | |
7840ced1 GM |
1475 | \f |
1476 | /*********************************************************************** | |
1477 | Initialization | |
1478 | ***********************************************************************/ | |
1479 | ||
1480 | void | |
971de7fb | 1481 | syms_of_sound (void) |
7840ced1 | 1482 | { |
d67b4f80 | 1483 | QCdevice = intern_c_string(":device"); |
7840ced1 | 1484 | staticpro (&QCdevice); |
d67b4f80 | 1485 | QCvolume = intern_c_string (":volume"); |
7840ced1 | 1486 | staticpro (&QCvolume); |
d67b4f80 | 1487 | Qsound = intern_c_string ("sound"); |
7840ced1 | 1488 | staticpro (&Qsound); |
d67b4f80 | 1489 | Qplay_sound_functions = intern_c_string ("play-sound-functions"); |
2a53558d | 1490 | staticpro (&Qplay_sound_functions); |
7840ced1 | 1491 | |
14e415e7 | 1492 | defsubr (&Splay_sound_internal); |
7840ced1 GM |
1493 | } |
1494 | ||
1495 | ||
1496 | void | |
971de7fb | 1497 | init_sound (void) |
7840ced1 GM |
1498 | { |
1499 | } | |
1500 | ||
1501 | #endif /* HAVE_SOUND */ | |
ab5796a9 MB |
1502 | |
1503 | /* arch-tag: dd850ad8-0433-4e2c-9cba-b7aeeccc0dbd | |
1504 | (do not change this comment) */ |