20 |
*/ |
*/ |
21 |
|
|
22 |
#include "rdesktop.h" |
#include "rdesktop.h" |
23 |
|
#include "rdpsnd.h" |
24 |
|
#include "rdpsnd_dsp.h" |
25 |
|
|
26 |
#define RDPSND_CLOSE 1 |
#define RDPSND_CLOSE 1 |
27 |
#define RDPSND_WRITE 2 |
#define RDPSND_WRITE 2 |
28 |
#define RDPSND_SET_VOLUME 3 |
#define RDPSND_SET_VOLUME 3 |
29 |
#define RDPSND_UNKNOWN4 4 |
#define RDPSND_UNKNOWN4 4 |
30 |
#define RDPSND_COMPLETION 5 |
#define RDPSND_COMPLETION 5 |
31 |
#define RDPSND_UNKNOWN6 6 |
#define RDPSND_SERVERTICK 6 |
32 |
#define RDPSND_NEGOTIATE 7 |
#define RDPSND_NEGOTIATE 7 |
33 |
|
|
34 |
#define MAX_FORMATS 10 |
#define MAX_FORMATS 10 |
35 |
|
#define MAX_QUEUE 10 |
36 |
|
|
37 |
|
BOOL g_dsp_busy = False; |
38 |
|
int g_dsp_fd; |
39 |
|
|
40 |
static VCHANNEL *rdpsnd_channel; |
static VCHANNEL *rdpsnd_channel; |
41 |
|
static struct audio_driver *drivers = NULL; |
42 |
|
struct audio_driver *current_driver = NULL; |
43 |
|
|
44 |
static BOOL device_open; |
static BOOL device_open; |
45 |
static WAVEFORMATEX formats[MAX_FORMATS]; |
static WAVEFORMATEX formats[MAX_FORMATS]; |
46 |
static unsigned int format_count; |
static unsigned int format_count; |
47 |
static unsigned int current_format; |
static unsigned int current_format; |
48 |
|
unsigned int queue_hi, queue_lo; |
49 |
|
struct audio_packet packet_queue[MAX_QUEUE]; |
50 |
|
|
51 |
|
void (*wave_out_play) (void); |
52 |
|
|
53 |
static STREAM |
static STREAM |
54 |
rdpsnd_init_packet(uint16 type, uint16 size) |
rdpsnd_init_packet(uint16 type, uint16 size) |
78 |
STREAM s; |
STREAM s; |
79 |
|
|
80 |
s = rdpsnd_init_packet(RDPSND_COMPLETION, 4); |
s = rdpsnd_init_packet(RDPSND_COMPLETION, 4); |
81 |
out_uint16_le(s, tick + 50); |
out_uint16_le(s, tick); |
82 |
out_uint8(s, packet_index); |
out_uint8(s, packet_index); |
83 |
out_uint8(s, 0); |
out_uint8(s, 0); |
84 |
s_mark_end(s); |
s_mark_end(s); |
99 |
in_uint16_le(in, in_format_count); |
in_uint16_le(in, in_format_count); |
100 |
in_uint8s(in, 4); /* pad, status, pad */ |
in_uint8s(in, 4); /* pad, status, pad */ |
101 |
|
|
102 |
if (wave_out_open()) |
if (current_driver->wave_out_open()) |
103 |
{ |
{ |
104 |
wave_out_close(); |
current_driver->wave_out_close(); |
105 |
device_available = True; |
device_available = True; |
106 |
} |
} |
107 |
|
|
132 |
in_uint8a(in, format->cb, readcnt); |
in_uint8a(in, format->cb, readcnt); |
133 |
in_uint8s(in, discardcnt); |
in_uint8s(in, discardcnt); |
134 |
|
|
135 |
if (device_available && wave_out_format_supported(format)) |
if (device_available && current_driver->wave_out_format_supported(format)) |
136 |
{ |
{ |
137 |
format_count++; |
format_count++; |
138 |
if (format_count == MAX_FORMATS) |
if (format_count == MAX_FORMATS) |
169 |
} |
} |
170 |
|
|
171 |
static void |
static void |
172 |
rdpsnd_process_unknown6(STREAM in) |
rdpsnd_process_servertick(STREAM in) |
173 |
{ |
{ |
174 |
uint16 unknown1, unknown2; |
uint16 tick1, tick2; |
175 |
STREAM out; |
STREAM out; |
176 |
|
|
177 |
/* in_uint8s(in, 4); unknown */ |
/* in_uint8s(in, 4); unknown */ |
178 |
in_uint16_le(in, unknown1); |
in_uint16_le(in, tick1); |
179 |
in_uint16_le(in, unknown2); |
in_uint16_le(in, tick2); |
180 |
|
|
181 |
out = rdpsnd_init_packet(RDPSND_UNKNOWN6 | 0x2300, 4); |
out = rdpsnd_init_packet(RDPSND_SERVERTICK | 0x2300, 4); |
182 |
out_uint16_le(out, unknown1); |
out_uint16_le(out, tick1); |
183 |
out_uint16_le(out, unknown2); |
out_uint16_le(out, tick2); |
184 |
s_mark_end(out); |
s_mark_end(out); |
185 |
rdpsnd_send(out); |
rdpsnd_send(out); |
186 |
} |
} |
194 |
static uint16 tick, format; |
static uint16 tick, format; |
195 |
static uint8 packet_index; |
static uint8 packet_index; |
196 |
static BOOL awaiting_data_packet; |
static BOOL awaiting_data_packet; |
197 |
|
static unsigned char missing_bytes[4] = { 0, 0, 0, 0 }; |
198 |
|
|
199 |
#ifdef RDPSND_DEBUG |
#ifdef RDPSND_DEBUG |
200 |
printf("RDPSND recv:\n"); |
printf("RDPSND recv:\n"); |
211 |
|
|
212 |
if (!device_open || (format != current_format)) |
if (!device_open || (format != current_format)) |
213 |
{ |
{ |
214 |
if (!device_open && !wave_out_open()) |
if (!device_open && !current_driver->wave_out_open()) |
215 |
{ |
{ |
216 |
rdpsnd_send_completion(tick, packet_index); |
rdpsnd_send_completion(tick, packet_index); |
217 |
return; |
return; |
218 |
} |
} |
219 |
if (!wave_out_set_format(&formats[format])) |
if (!current_driver->wave_out_set_format(&formats[format])) |
220 |
{ |
{ |
221 |
rdpsnd_send_completion(tick, packet_index); |
rdpsnd_send_completion(tick, packet_index); |
222 |
wave_out_close(); |
current_driver->wave_out_close(); |
223 |
device_open = False; |
device_open = False; |
224 |
return; |
return; |
225 |
} |
} |
227 |
current_format = format; |
current_format = format; |
228 |
} |
} |
229 |
|
|
230 |
wave_out_write(s, tick, packet_index); |
/* Insert the 4 missing bytes retrieved from last RDPSND_WRITE */ |
231 |
|
memcpy(s->data, missing_bytes, 4); |
232 |
|
|
233 |
|
current_driver-> |
234 |
|
wave_out_write(rdpsnd_dsp_process |
235 |
|
(s, current_driver, &formats[current_format]), tick, |
236 |
|
packet_index); |
237 |
awaiting_data_packet = False; |
awaiting_data_packet = False; |
238 |
return; |
return; |
239 |
} |
} |
248 |
in_uint16_le(s, tick); |
in_uint16_le(s, tick); |
249 |
in_uint16_le(s, format); |
in_uint16_le(s, format); |
250 |
in_uint8(s, packet_index); |
in_uint8(s, packet_index); |
251 |
|
/* Here are our lost bytes, but why? */ |
252 |
|
memcpy(missing_bytes, s->end - 4, 4); |
253 |
awaiting_data_packet = True; |
awaiting_data_packet = True; |
254 |
break; |
break; |
255 |
case RDPSND_CLOSE: |
case RDPSND_CLOSE: |
256 |
wave_out_close(); |
current_driver->wave_out_close(); |
257 |
device_open = False; |
device_open = False; |
258 |
break; |
break; |
259 |
case RDPSND_NEGOTIATE: |
case RDPSND_NEGOTIATE: |
260 |
rdpsnd_process_negotiate(s); |
rdpsnd_process_negotiate(s); |
261 |
break; |
break; |
262 |
case RDPSND_UNKNOWN6: |
case RDPSND_SERVERTICK: |
263 |
rdpsnd_process_unknown6(s); |
rdpsnd_process_servertick(s); |
264 |
break; |
break; |
265 |
case RDPSND_SET_VOLUME: |
case RDPSND_SET_VOLUME: |
266 |
in_uint32(s, volume); |
in_uint32(s, volume); |
267 |
if (device_open) |
if (device_open) |
268 |
{ |
{ |
269 |
wave_out_volume((volume & 0xffff), (volume & 0xffff0000) >> 16); |
current_driver->wave_out_volume((volume & 0xffff), |
270 |
|
(volume & 0xffff0000) >> 16); |
271 |
} |
} |
272 |
break; |
break; |
273 |
default: |
default: |
282 |
rdpsnd_channel = |
rdpsnd_channel = |
283 |
channel_register("rdpsnd", CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP, |
channel_register("rdpsnd", CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP, |
284 |
rdpsnd_process); |
rdpsnd_process); |
285 |
|
|
286 |
return (rdpsnd_channel != NULL); |
return (rdpsnd_channel != NULL); |
287 |
} |
} |
288 |
|
|
289 |
|
BOOL |
290 |
|
rdpsnd_auto_open(void) |
291 |
|
{ |
292 |
|
static BOOL failed = False; |
293 |
|
|
294 |
|
if (!failed) |
295 |
|
{ |
296 |
|
struct audio_driver *auto_driver = current_driver; |
297 |
|
|
298 |
|
current_driver = drivers; |
299 |
|
while (current_driver != NULL) |
300 |
|
{ |
301 |
|
DEBUG(("trying %s...\n", current_driver->name)); |
302 |
|
if (current_driver->wave_out_open()) |
303 |
|
{ |
304 |
|
DEBUG(("selected %s\n", current_driver->name)); |
305 |
|
return True; |
306 |
|
} |
307 |
|
g_dsp_fd = 0; |
308 |
|
current_driver = current_driver->next; |
309 |
|
} |
310 |
|
|
311 |
|
warning("no working audio-driver found\n"); |
312 |
|
failed = True; |
313 |
|
current_driver = auto_driver; |
314 |
|
} |
315 |
|
|
316 |
|
return False; |
317 |
|
} |
318 |
|
|
319 |
|
void |
320 |
|
rdpsnd_register_drivers(char *options) |
321 |
|
{ |
322 |
|
struct audio_driver **reg; |
323 |
|
|
324 |
|
/* The order of registrations define the probe-order |
325 |
|
when opening the device for the first time */ |
326 |
|
reg = &drivers; |
327 |
|
#if defined(RDPSND_ALSA) |
328 |
|
*reg = alsa_register(options); |
329 |
|
reg = &((*reg)->next); |
330 |
|
#endif |
331 |
|
#if defined(RDPSND_SUN) |
332 |
|
*reg = sun_register(options); |
333 |
|
reg = &((*reg)->next); |
334 |
|
#endif |
335 |
|
#if defined(RDPSND_OSS) |
336 |
|
*reg = oss_register(options); |
337 |
|
reg = &((*reg)->next); |
338 |
|
#endif |
339 |
|
#if defined(RDPSND_SGI) |
340 |
|
*reg = sgi_register(options); |
341 |
|
reg = &((*reg)->next); |
342 |
|
#endif |
343 |
|
#if defined(RDPSND_LIBAO) |
344 |
|
*reg = libao_register(options); |
345 |
|
reg = &((*reg)->next); |
346 |
|
#endif |
347 |
|
} |
348 |
|
|
349 |
|
BOOL |
350 |
|
rdpsnd_select_driver(char *driver, char *options) |
351 |
|
{ |
352 |
|
static struct audio_driver auto_driver; |
353 |
|
struct audio_driver *pos; |
354 |
|
|
355 |
|
drivers = NULL; |
356 |
|
rdpsnd_register_drivers(options); |
357 |
|
|
358 |
|
if (!driver) |
359 |
|
{ |
360 |
|
auto_driver.wave_out_open = &rdpsnd_auto_open; |
361 |
|
current_driver = &auto_driver; |
362 |
|
return True; |
363 |
|
} |
364 |
|
|
365 |
|
pos = drivers; |
366 |
|
while (pos != NULL) |
367 |
|
{ |
368 |
|
if (!strcmp(pos->name, driver)) |
369 |
|
{ |
370 |
|
DEBUG(("selected %s\n", pos->name)); |
371 |
|
current_driver = pos; |
372 |
|
return True; |
373 |
|
} |
374 |
|
pos = pos->next; |
375 |
|
} |
376 |
|
return False; |
377 |
|
} |
378 |
|
|
379 |
|
void |
380 |
|
rdpsnd_show_help(void) |
381 |
|
{ |
382 |
|
struct audio_driver *pos; |
383 |
|
|
384 |
|
rdpsnd_register_drivers(NULL); |
385 |
|
|
386 |
|
pos = drivers; |
387 |
|
while (pos != NULL) |
388 |
|
{ |
389 |
|
fprintf(stderr, " %s:\t%s\n", pos->name, pos->description); |
390 |
|
pos = pos->next; |
391 |
|
} |
392 |
|
} |
393 |
|
|
394 |
|
inline void |
395 |
|
rdpsnd_play(void) |
396 |
|
{ |
397 |
|
current_driver->wave_out_play(); |
398 |
|
} |
399 |
|
|
400 |
|
void |
401 |
|
rdpsnd_queue_write(STREAM s, uint16 tick, uint8 index) |
402 |
|
{ |
403 |
|
struct audio_packet *packet = &packet_queue[queue_hi]; |
404 |
|
unsigned int next_hi = (queue_hi + 1) % MAX_QUEUE; |
405 |
|
|
406 |
|
if (next_hi == queue_lo) |
407 |
|
{ |
408 |
|
error("No space to queue audio packet\n"); |
409 |
|
return; |
410 |
|
} |
411 |
|
|
412 |
|
queue_hi = next_hi; |
413 |
|
|
414 |
|
packet->s = *s; |
415 |
|
packet->tick = tick; |
416 |
|
packet->index = index; |
417 |
|
|
418 |
|
if (!g_dsp_busy) |
419 |
|
current_driver->wave_out_play(); |
420 |
|
} |
421 |
|
|
422 |
|
inline struct audio_packet * |
423 |
|
rdpsnd_queue_current_packet(void) |
424 |
|
{ |
425 |
|
return &packet_queue[queue_lo]; |
426 |
|
} |
427 |
|
|
428 |
|
inline BOOL |
429 |
|
rdpsnd_queue_empty(void) |
430 |
|
{ |
431 |
|
return (queue_lo == queue_hi); |
432 |
|
} |
433 |
|
|
434 |
|
inline void |
435 |
|
rdpsnd_queue_init(void) |
436 |
|
{ |
437 |
|
queue_lo = queue_hi = 0; |
438 |
|
} |
439 |
|
|
440 |
|
inline void |
441 |
|
rdpsnd_queue_next(void) |
442 |
|
{ |
443 |
|
xfree(packet_queue[queue_lo].s.data); |
444 |
|
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
445 |
|
} |
446 |
|
|
447 |
|
inline int |
448 |
|
rdpsnd_queue_next_tick(void) |
449 |
|
{ |
450 |
|
if (((queue_lo + 1) % MAX_QUEUE) != queue_hi) |
451 |
|
{ |
452 |
|
return packet_queue[(queue_lo + 1) % MAX_QUEUE].tick; |
453 |
|
} |
454 |
|
else |
455 |
|
{ |
456 |
|
return (packet_queue[queue_lo].tick + 65535) % 65536; |
457 |
|
} |
458 |
|
} |