19 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 |
*/ |
*/ |
21 |
|
|
22 |
|
#include <assert.h> |
23 |
|
|
24 |
#include "rdesktop.h" |
#include "rdesktop.h" |
25 |
#include "rdpsnd.h" |
#include "rdpsnd.h" |
26 |
#include "rdpsnd_dsp.h" |
#include "rdpsnd_dsp.h" |
30 |
#define RDPSND_SET_VOLUME 3 |
#define RDPSND_SET_VOLUME 3 |
31 |
#define RDPSND_UNKNOWN4 4 |
#define RDPSND_UNKNOWN4 4 |
32 |
#define RDPSND_COMPLETION 5 |
#define RDPSND_COMPLETION 5 |
33 |
#define RDPSND_SERVERTICK 6 |
#define RDPSND_PING 6 |
34 |
#define RDPSND_NEGOTIATE 7 |
#define RDPSND_NEGOTIATE 7 |
35 |
|
|
36 |
#define MAX_FORMATS 10 |
#define MAX_FORMATS 10 |
47 |
static WAVEFORMATEX formats[MAX_FORMATS]; |
static WAVEFORMATEX formats[MAX_FORMATS]; |
48 |
static unsigned int format_count; |
static unsigned int format_count; |
49 |
static unsigned int current_format; |
static unsigned int current_format; |
50 |
unsigned int queue_hi, queue_lo; |
unsigned int queue_hi, queue_lo, queue_pending; |
51 |
struct audio_packet packet_queue[MAX_QUEUE]; |
struct audio_packet packet_queue[MAX_QUEUE]; |
52 |
|
|
53 |
void (*wave_out_play) (void); |
void (*wave_out_play) (void); |
54 |
|
|
55 |
|
static void rdpsnd_queue_write(STREAM s, uint16 tick, uint8 index); |
56 |
|
static void rdpsnd_queue_init(void); |
57 |
|
static void rdpsnd_queue_complete_pending(void); |
58 |
|
static long rdpsnd_queue_next_completion(void); |
59 |
|
|
60 |
static STREAM |
static STREAM |
61 |
rdpsnd_init_packet(uint16 type, uint16 size) |
rdpsnd_init_packet(uint16 type, uint16 size) |
62 |
{ |
{ |
79 |
channel_send(s, rdpsnd_channel); |
channel_send(s, rdpsnd_channel); |
80 |
} |
} |
81 |
|
|
82 |
void |
static void |
83 |
rdpsnd_send_completion(uint16 tick, uint8 packet_index) |
rdpsnd_send_completion(uint16 tick, uint8 packet_index) |
84 |
{ |
{ |
85 |
STREAM s; |
STREAM s; |
176 |
} |
} |
177 |
|
|
178 |
static void |
static void |
179 |
rdpsnd_process_servertick(STREAM in) |
rdpsnd_process_ping(STREAM in) |
180 |
{ |
{ |
181 |
uint16 tick1, tick2; |
uint16 tick; |
182 |
STREAM out; |
STREAM out; |
183 |
|
|
184 |
/* in_uint8s(in, 4); unknown */ |
in_uint16_le(in, tick); |
185 |
in_uint16_le(in, tick1); |
|
186 |
in_uint16_le(in, tick2); |
out = rdpsnd_init_packet(RDPSND_PING | 0x2300, 4); |
187 |
|
out_uint16_le(out, tick); |
188 |
out = rdpsnd_init_packet(RDPSND_SERVERTICK | 0x2300, 4); |
out_uint16_le(out, 0); |
|
out_uint16_le(out, tick1); |
|
|
out_uint16_le(out, tick2); |
|
189 |
s_mark_end(out); |
s_mark_end(out); |
190 |
rdpsnd_send(out); |
rdpsnd_send(out); |
191 |
} |
} |
235 |
/* Insert the 4 missing bytes retrieved from last RDPSND_WRITE */ |
/* Insert the 4 missing bytes retrieved from last RDPSND_WRITE */ |
236 |
memcpy(s->data, missing_bytes, 4); |
memcpy(s->data, missing_bytes, 4); |
237 |
|
|
238 |
current_driver-> |
rdpsnd_queue_write(rdpsnd_dsp_process |
239 |
wave_out_write(rdpsnd_dsp_process |
(s, current_driver, &formats[current_format]), tick, |
240 |
(s, current_driver, &formats[current_format]), tick, |
packet_index); |
|
packet_index); |
|
241 |
awaiting_data_packet = False; |
awaiting_data_packet = False; |
242 |
return; |
return; |
243 |
} |
} |
263 |
case RDPSND_NEGOTIATE: |
case RDPSND_NEGOTIATE: |
264 |
rdpsnd_process_negotiate(s); |
rdpsnd_process_negotiate(s); |
265 |
break; |
break; |
266 |
case RDPSND_SERVERTICK: |
case RDPSND_PING: |
267 |
rdpsnd_process_servertick(s); |
rdpsnd_process_ping(s); |
268 |
break; |
break; |
269 |
case RDPSND_SET_VOLUME: |
case RDPSND_SET_VOLUME: |
270 |
in_uint32(s, volume); |
in_uint32(s, volume); |
280 |
} |
} |
281 |
} |
} |
282 |
|
|
283 |
BOOL |
static BOOL |
|
rdpsnd_init(void) |
|
|
{ |
|
|
rdpsnd_channel = |
|
|
channel_register("rdpsnd", CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP, |
|
|
rdpsnd_process); |
|
|
|
|
|
return (rdpsnd_channel != NULL); |
|
|
} |
|
|
|
|
|
BOOL |
|
284 |
rdpsnd_auto_open(void) |
rdpsnd_auto_open(void) |
285 |
{ |
{ |
286 |
static BOOL failed = False; |
static BOOL failed = False; |
310 |
return False; |
return False; |
311 |
} |
} |
312 |
|
|
313 |
void |
static void |
314 |
rdpsnd_register_drivers(char *options) |
rdpsnd_register_drivers(char *options) |
315 |
{ |
{ |
316 |
struct audio_driver **reg; |
struct audio_driver **reg; |
320 |
reg = &drivers; |
reg = &drivers; |
321 |
#if defined(RDPSND_ALSA) |
#if defined(RDPSND_ALSA) |
322 |
*reg = alsa_register(options); |
*reg = alsa_register(options); |
323 |
|
assert(*reg); |
324 |
reg = &((*reg)->next); |
reg = &((*reg)->next); |
325 |
#endif |
#endif |
326 |
#if defined(RDPSND_SUN) |
#if defined(RDPSND_SUN) |
327 |
*reg = sun_register(options); |
*reg = sun_register(options); |
328 |
|
assert(*reg); |
329 |
reg = &((*reg)->next); |
reg = &((*reg)->next); |
330 |
#endif |
#endif |
331 |
#if defined(RDPSND_OSS) |
#if defined(RDPSND_OSS) |
332 |
*reg = oss_register(options); |
*reg = oss_register(options); |
333 |
|
assert(*reg); |
334 |
reg = &((*reg)->next); |
reg = &((*reg)->next); |
335 |
#endif |
#endif |
336 |
#if defined(RDPSND_SGI) |
#if defined(RDPSND_SGI) |
337 |
*reg = sgi_register(options); |
*reg = sgi_register(options); |
338 |
|
assert(*reg); |
339 |
reg = &((*reg)->next); |
reg = &((*reg)->next); |
340 |
#endif |
#endif |
341 |
#if defined(RDPSND_LIBAO) |
#if defined(RDPSND_LIBAO) |
342 |
*reg = libao_register(options); |
*reg = libao_register(options); |
343 |
|
assert(*reg); |
344 |
reg = &((*reg)->next); |
reg = &((*reg)->next); |
345 |
#endif |
#endif |
346 |
|
*reg = NULL; |
347 |
} |
} |
348 |
|
|
349 |
BOOL |
BOOL |
350 |
rdpsnd_select_driver(char *driver, char *options) |
rdpsnd_init(char *optarg) |
351 |
{ |
{ |
352 |
static struct audio_driver auto_driver; |
static struct audio_driver auto_driver; |
353 |
struct audio_driver *pos; |
struct audio_driver *pos; |
354 |
|
char *driver = NULL, *options = NULL; |
355 |
|
|
356 |
drivers = NULL; |
drivers = NULL; |
357 |
|
|
358 |
|
rdpsnd_channel = |
359 |
|
channel_register("rdpsnd", CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP, |
360 |
|
rdpsnd_process); |
361 |
|
|
362 |
|
if (rdpsnd_channel == NULL) |
363 |
|
{ |
364 |
|
error("channel_register\n"); |
365 |
|
return False; |
366 |
|
} |
367 |
|
|
368 |
|
rdpsnd_queue_init(); |
369 |
|
|
370 |
|
if (optarg != NULL && strlen(optarg) > 0) |
371 |
|
{ |
372 |
|
driver = options = optarg; |
373 |
|
|
374 |
|
while (*options != '\0' && *options != ':') |
375 |
|
options++; |
376 |
|
|
377 |
|
if (*options == ':') |
378 |
|
{ |
379 |
|
*options = '\0'; |
380 |
|
options++; |
381 |
|
} |
382 |
|
|
383 |
|
if (*options == '\0') |
384 |
|
options = NULL; |
385 |
|
} |
386 |
|
|
387 |
rdpsnd_register_drivers(options); |
rdpsnd_register_drivers(options); |
388 |
|
|
389 |
if (!driver) |
if (!driver) |
422 |
} |
} |
423 |
} |
} |
424 |
|
|
425 |
inline void |
void |
426 |
rdpsnd_play(void) |
rdpsnd_play(void) |
427 |
{ |
{ |
428 |
current_driver->wave_out_play(); |
current_driver->wave_out_play(); |
429 |
} |
} |
430 |
|
|
431 |
void |
void |
432 |
|
rdpsnd_add_fds(int *n, fd_set * rfds, fd_set * wfds, struct timeval *tv) |
433 |
|
{ |
434 |
|
long next_pending; |
435 |
|
|
436 |
|
if (g_dsp_busy) |
437 |
|
{ |
438 |
|
FD_SET(g_dsp_fd, wfds); |
439 |
|
*n = (g_dsp_fd > *n) ? g_dsp_fd : *n; |
440 |
|
} |
441 |
|
|
442 |
|
next_pending = rdpsnd_queue_next_completion(); |
443 |
|
if (next_pending >= 0) |
444 |
|
{ |
445 |
|
long cur_timeout; |
446 |
|
|
447 |
|
cur_timeout = tv->tv_sec * 1000000 + tv->tv_usec; |
448 |
|
if (cur_timeout > next_pending) |
449 |
|
{ |
450 |
|
tv->tv_sec = next_pending / 1000000; |
451 |
|
tv->tv_usec = next_pending % 1000000; |
452 |
|
} |
453 |
|
} |
454 |
|
} |
455 |
|
|
456 |
|
void |
457 |
|
rdpsnd_check_fds(fd_set * rfds, fd_set * wfds) |
458 |
|
{ |
459 |
|
rdpsnd_queue_complete_pending(); |
460 |
|
|
461 |
|
if (g_dsp_busy && FD_ISSET(g_dsp_fd, wfds)) |
462 |
|
rdpsnd_play(); |
463 |
|
} |
464 |
|
|
465 |
|
static void |
466 |
rdpsnd_queue_write(STREAM s, uint16 tick, uint8 index) |
rdpsnd_queue_write(STREAM s, uint16 tick, uint8 index) |
467 |
{ |
{ |
468 |
struct audio_packet *packet = &packet_queue[queue_hi]; |
struct audio_packet *packet = &packet_queue[queue_hi]; |
469 |
unsigned int next_hi = (queue_hi + 1) % MAX_QUEUE; |
unsigned int next_hi = (queue_hi + 1) % MAX_QUEUE; |
470 |
|
|
471 |
if (next_hi == queue_lo) |
if (next_hi == queue_pending) |
472 |
{ |
{ |
473 |
error("No space to queue audio packet\n"); |
error("No space to queue audio packet\n"); |
474 |
return; |
return; |
480 |
packet->tick = tick; |
packet->tick = tick; |
481 |
packet->index = index; |
packet->index = index; |
482 |
|
|
483 |
|
gettimeofday(&packet->arrive_tv, NULL); |
484 |
|
|
485 |
if (!g_dsp_busy) |
if (!g_dsp_busy) |
486 |
current_driver->wave_out_play(); |
current_driver->wave_out_play(); |
487 |
} |
} |
488 |
|
|
489 |
inline struct audio_packet * |
struct audio_packet * |
490 |
rdpsnd_queue_current_packet(void) |
rdpsnd_queue_current_packet(void) |
491 |
{ |
{ |
492 |
return &packet_queue[queue_lo]; |
return &packet_queue[queue_lo]; |
493 |
} |
} |
494 |
|
|
495 |
inline BOOL |
BOOL |
496 |
rdpsnd_queue_empty(void) |
rdpsnd_queue_empty(void) |
497 |
{ |
{ |
498 |
return (queue_lo == queue_hi); |
return (queue_lo == queue_hi); |
499 |
} |
} |
500 |
|
|
501 |
inline void |
static void |
502 |
rdpsnd_queue_init(void) |
rdpsnd_queue_init(void) |
503 |
{ |
{ |
504 |
queue_lo = queue_hi = 0; |
queue_pending = queue_lo = queue_hi = 0; |
505 |
} |
} |
506 |
|
|
507 |
inline void |
void |
508 |
rdpsnd_queue_next(void) |
rdpsnd_queue_next(unsigned long completed_in_us) |
509 |
{ |
{ |
510 |
xfree(packet_queue[queue_lo].s.data); |
struct audio_packet *packet; |
511 |
|
|
512 |
|
assert(!rdpsnd_queue_empty()); |
513 |
|
|
514 |
|
packet = &packet_queue[queue_lo]; |
515 |
|
|
516 |
|
gettimeofday(&packet->completion_tv, NULL); |
517 |
|
|
518 |
|
packet->completion_tv.tv_usec += completed_in_us; |
519 |
|
packet->completion_tv.tv_sec += packet->completion_tv.tv_usec / 1000000; |
520 |
|
packet->completion_tv.tv_usec %= 1000000; |
521 |
|
|
522 |
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
523 |
|
|
524 |
|
rdpsnd_queue_complete_pending(); |
525 |
} |
} |
526 |
|
|
527 |
inline int |
int |
528 |
rdpsnd_queue_next_tick(void) |
rdpsnd_queue_next_tick(void) |
529 |
{ |
{ |
530 |
if (((queue_lo + 1) % MAX_QUEUE) != queue_hi) |
if (((queue_lo + 1) % MAX_QUEUE) != queue_hi) |
536 |
return (packet_queue[queue_lo].tick + 65535) % 65536; |
return (packet_queue[queue_lo].tick + 65535) % 65536; |
537 |
} |
} |
538 |
} |
} |
539 |
|
|
540 |
|
static void |
541 |
|
rdpsnd_queue_complete_pending(void) |
542 |
|
{ |
543 |
|
struct timeval now; |
544 |
|
long elapsed; |
545 |
|
struct audio_packet *packet; |
546 |
|
|
547 |
|
gettimeofday(&now, NULL); |
548 |
|
|
549 |
|
while (queue_pending != queue_lo) |
550 |
|
{ |
551 |
|
packet = &packet_queue[queue_pending]; |
552 |
|
|
553 |
|
if (now.tv_sec < packet->completion_tv.tv_sec) |
554 |
|
break; |
555 |
|
|
556 |
|
if ((now.tv_sec == packet->completion_tv.tv_sec) && |
557 |
|
(now.tv_usec < packet->completion_tv.tv_usec)) |
558 |
|
break; |
559 |
|
|
560 |
|
elapsed = (packet->completion_tv.tv_sec - packet->arrive_tv.tv_sec) * 1000000 + |
561 |
|
(packet->completion_tv.tv_usec - packet->arrive_tv.tv_usec); |
562 |
|
elapsed /= 1000; |
563 |
|
|
564 |
|
xfree(packet->s.data); |
565 |
|
rdpsnd_send_completion((packet->tick + elapsed) % 65536, packet->index); |
566 |
|
queue_pending = (queue_pending + 1) % MAX_QUEUE; |
567 |
|
} |
568 |
|
} |
569 |
|
|
570 |
|
static long |
571 |
|
rdpsnd_queue_next_completion(void) |
572 |
|
{ |
573 |
|
struct audio_packet *packet; |
574 |
|
long remaining; |
575 |
|
struct timeval now; |
576 |
|
|
577 |
|
if (queue_pending == queue_lo) |
578 |
|
return -1; |
579 |
|
|
580 |
|
gettimeofday(&now, NULL); |
581 |
|
|
582 |
|
packet = &packet_queue[queue_pending]; |
583 |
|
|
584 |
|
remaining = (packet->completion_tv.tv_sec - now.tv_sec) * 1000000 + |
585 |
|
(packet->completion_tv.tv_usec - now.tv_usec); |
586 |
|
|
587 |
|
if (remaining < 0) |
588 |
|
return 0; |
589 |
|
|
590 |
|
return remaining; |
591 |
|
} |