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; |
237 |
/* Insert the 4 missing bytes retrieved from last RDPSND_WRITE */ |
/* Insert the 4 missing bytes retrieved from last RDPSND_WRITE */ |
238 |
memcpy(s->data, missing_bytes, 4); |
memcpy(s->data, missing_bytes, 4); |
239 |
|
|
240 |
current_driver-> |
rdpsnd_queue_write(rdpsnd_dsp_process |
241 |
wave_out_write(rdpsnd_dsp_process |
(s, current_driver, &formats[current_format]), tick, |
242 |
(s, current_driver, &formats[current_format]), tick, |
packet_index); |
|
packet_index); |
|
243 |
awaiting_data_packet = False; |
awaiting_data_packet = False; |
244 |
return; |
return; |
245 |
} |
} |
342 |
#endif |
#endif |
343 |
#if defined(RDPSND_LIBAO) |
#if defined(RDPSND_LIBAO) |
344 |
*reg = libao_register(options); |
*reg = libao_register(options); |
345 |
assert(*reg); |
assert(*reg); |
346 |
reg = &((*reg)->next); |
reg = &((*reg)->next); |
347 |
#endif |
#endif |
348 |
} |
} |
366 |
return False; |
return False; |
367 |
} |
} |
368 |
|
|
369 |
|
rdpsnd_queue_init(); |
370 |
|
|
371 |
if (optarg != NULL && strlen(optarg) > 0) |
if (optarg != NULL && strlen(optarg) > 0) |
372 |
{ |
{ |
373 |
driver = options = optarg; |
driver = options = optarg; |
430 |
} |
} |
431 |
|
|
432 |
void |
void |
433 |
|
rdpsnd_add_fds(int *n, fd_set * rfds, fd_set * wfds, struct timeval *tv) |
434 |
|
{ |
435 |
|
long next_pending; |
436 |
|
|
437 |
|
if (g_dsp_busy) |
438 |
|
{ |
439 |
|
FD_SET(g_dsp_fd, wfds); |
440 |
|
*n = (g_dsp_fd > *n) ? g_dsp_fd : *n; |
441 |
|
} |
442 |
|
|
443 |
|
next_pending = rdpsnd_queue_next_completion(); |
444 |
|
if (next_pending >= 0) |
445 |
|
{ |
446 |
|
long cur_timeout; |
447 |
|
|
448 |
|
cur_timeout = tv->tv_sec * 1000000 + tv->tv_usec; |
449 |
|
if (cur_timeout > next_pending) |
450 |
|
{ |
451 |
|
tv->tv_sec = next_pending / 1000000; |
452 |
|
tv->tv_usec = next_pending % 1000000; |
453 |
|
} |
454 |
|
} |
455 |
|
} |
456 |
|
|
457 |
|
void |
458 |
|
rdpsnd_check_fds(fd_set * rfds, fd_set * wfds) |
459 |
|
{ |
460 |
|
rdpsnd_queue_complete_pending(); |
461 |
|
|
462 |
|
if (g_dsp_busy && FD_ISSET(g_dsp_fd, wfds)) |
463 |
|
rdpsnd_play(); |
464 |
|
} |
465 |
|
|
466 |
|
static void |
467 |
rdpsnd_queue_write(STREAM s, uint16 tick, uint8 index) |
rdpsnd_queue_write(STREAM s, uint16 tick, uint8 index) |
468 |
{ |
{ |
469 |
struct audio_packet *packet = &packet_queue[queue_hi]; |
struct audio_packet *packet = &packet_queue[queue_hi]; |
470 |
unsigned int next_hi = (queue_hi + 1) % MAX_QUEUE; |
unsigned int next_hi = (queue_hi + 1) % MAX_QUEUE; |
471 |
|
|
472 |
if (next_hi == queue_lo) |
if (next_hi == queue_pending) |
473 |
{ |
{ |
474 |
error("No space to queue audio packet\n"); |
error("No space to queue audio packet\n"); |
475 |
return; |
return; |
481 |
packet->tick = tick; |
packet->tick = tick; |
482 |
packet->index = index; |
packet->index = index; |
483 |
|
|
484 |
|
gettimeofday(&packet->arrive_tv, NULL); |
485 |
|
|
486 |
if (!g_dsp_busy) |
if (!g_dsp_busy) |
487 |
current_driver->wave_out_play(); |
current_driver->wave_out_play(); |
488 |
} |
} |
499 |
return (queue_lo == queue_hi); |
return (queue_lo == queue_hi); |
500 |
} |
} |
501 |
|
|
502 |
void |
static void |
503 |
rdpsnd_queue_init(void) |
rdpsnd_queue_init(void) |
504 |
{ |
{ |
505 |
queue_lo = queue_hi = 0; |
queue_pending = queue_lo = queue_hi = 0; |
506 |
} |
} |
507 |
|
|
508 |
void |
void |
509 |
rdpsnd_queue_next(void) |
rdpsnd_queue_next(unsigned long completed_in_us) |
510 |
{ |
{ |
511 |
xfree(packet_queue[queue_lo].s.data); |
struct audio_packet *packet; |
512 |
|
|
513 |
|
assert(!rdpsnd_queue_empty()); |
514 |
|
|
515 |
|
packet = &packet_queue[queue_lo]; |
516 |
|
|
517 |
|
gettimeofday(&packet->completion_tv, NULL); |
518 |
|
|
519 |
|
packet->completion_tv.tv_usec += completed_in_us; |
520 |
|
packet->completion_tv.tv_sec += packet->completion_tv.tv_usec / 1000000; |
521 |
|
packet->completion_tv.tv_usec %= 1000000; |
522 |
|
|
523 |
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
524 |
|
|
525 |
|
rdpsnd_queue_complete_pending(); |
526 |
} |
} |
527 |
|
|
528 |
int |
int |
537 |
return (packet_queue[queue_lo].tick + 65535) % 65536; |
return (packet_queue[queue_lo].tick + 65535) % 65536; |
538 |
} |
} |
539 |
} |
} |
540 |
|
|
541 |
|
static void |
542 |
|
rdpsnd_queue_complete_pending(void) |
543 |
|
{ |
544 |
|
struct timeval now; |
545 |
|
long elapsed; |
546 |
|
struct audio_packet *packet; |
547 |
|
|
548 |
|
gettimeofday(&now, NULL); |
549 |
|
|
550 |
|
while (queue_pending != queue_lo) |
551 |
|
{ |
552 |
|
packet = &packet_queue[queue_pending]; |
553 |
|
|
554 |
|
if (now.tv_sec < packet->completion_tv.tv_sec) |
555 |
|
break; |
556 |
|
|
557 |
|
if ((now.tv_sec == packet->completion_tv.tv_sec) && |
558 |
|
(now.tv_usec < packet->completion_tv.tv_usec)) |
559 |
|
break; |
560 |
|
|
561 |
|
elapsed = (packet->completion_tv.tv_sec - packet->arrive_tv.tv_sec) * 1000000 + |
562 |
|
(packet->completion_tv.tv_usec - packet->arrive_tv.tv_usec); |
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 |
|
} |