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*/ |
*/ |
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|
|
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#include "rdesktop.h" |
#include "rdesktop.h" |
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|
#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 |
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#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 |
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|
|
34 |
#define MAX_FORMATS 10 |
#define MAX_FORMATS 10 |
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#define MAX_QUEUE 10 |
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|
37 |
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BOOL g_dsp_busy = False; |
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int g_dsp_fd; |
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|
40 |
static VCHANNEL *rdpsnd_channel; |
static VCHANNEL *rdpsnd_channel; |
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static struct audio_driver *drivers = NULL; |
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struct audio_driver *current_driver = NULL; |
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|
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static BOOL device_open; |
static BOOL device_open; |
45 |
static WAVEFORMATEX formats[MAX_FORMATS]; |
static WAVEFORMATEX formats[MAX_FORMATS]; |
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static unsigned int format_count; |
static unsigned int format_count; |
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static unsigned int current_format; |
static unsigned int current_format; |
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unsigned int queue_hi, queue_lo; |
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struct audio_packet packet_queue[MAX_QUEUE]; |
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|
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void (*wave_out_play) (void); |
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|
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static STREAM |
static STREAM |
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rdpsnd_init_packet(uint16 type, uint16 size) |
rdpsnd_init_packet(uint16 type, uint16 size) |
78 |
STREAM s; |
STREAM s; |
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|
|
80 |
s = rdpsnd_init_packet(RDPSND_COMPLETION, 4); |
s = rdpsnd_init_packet(RDPSND_COMPLETION, 4); |
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out_uint16_le(s, tick + 50); |
out_uint16_le(s, tick); |
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out_uint8(s, packet_index); |
out_uint8(s, packet_index); |
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out_uint8(s, 0); |
out_uint8(s, 0); |
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s_mark_end(s); |
s_mark_end(s); |
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in_uint16_le(in, in_format_count); |
in_uint16_le(in, in_format_count); |
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in_uint8s(in, 4); /* pad, status, pad */ |
in_uint8s(in, 4); /* pad, status, pad */ |
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|
|
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if (wave_out_open()) |
if (current_driver->wave_out_open()) |
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{ |
{ |
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wave_out_close(); |
current_driver->wave_out_close(); |
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device_available = True; |
device_available = True; |
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} |
} |
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|
|
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in_uint8a(in, format->cb, readcnt); |
in_uint8a(in, format->cb, readcnt); |
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in_uint8s(in, discardcnt); |
in_uint8s(in, discardcnt); |
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|
|
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if (device_available && wave_out_format_supported(format)) |
if (device_available && current_driver->wave_out_format_supported(format)) |
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{ |
{ |
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format_count++; |
format_count++; |
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if (format_count == MAX_FORMATS) |
if (format_count == MAX_FORMATS) |
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} |
} |
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|
|
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static void |
static void |
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rdpsnd_process_unknown6(STREAM in) |
rdpsnd_process_servertick(STREAM in) |
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{ |
{ |
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uint16 unknown1, unknown2; |
uint16 tick1, tick2; |
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STREAM out; |
STREAM out; |
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|
|
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/* in_uint8s(in, 4); unknown */ |
/* in_uint8s(in, 4); unknown */ |
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in_uint16_le(in, unknown1); |
in_uint16_le(in, tick1); |
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in_uint16_le(in, unknown2); |
in_uint16_le(in, tick2); |
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|
|
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out = rdpsnd_init_packet(RDPSND_UNKNOWN6 | 0x2300, 4); |
out = rdpsnd_init_packet(RDPSND_SERVERTICK | 0x2300, 4); |
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out_uint16_le(out, unknown1); |
out_uint16_le(out, tick1); |
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out_uint16_le(out, unknown2); |
out_uint16_le(out, tick2); |
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s_mark_end(out); |
s_mark_end(out); |
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rdpsnd_send(out); |
rdpsnd_send(out); |
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} |
} |
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|
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if (!device_open || (format != current_format)) |
if (!device_open || (format != current_format)) |
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{ |
{ |
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if (!device_open && !wave_out_open()) |
if (!device_open && !current_driver->wave_out_open()) |
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{ |
{ |
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rdpsnd_send_completion(tick, packet_index); |
rdpsnd_send_completion(tick, packet_index); |
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return; |
return; |
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} |
} |
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if (!wave_out_set_format(&formats[format])) |
if (!current_driver->wave_out_set_format(&formats[format])) |
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{ |
{ |
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rdpsnd_send_completion(tick, packet_index); |
rdpsnd_send_completion(tick, packet_index); |
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wave_out_close(); |
current_driver->wave_out_close(); |
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device_open = False; |
device_open = False; |
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return; |
return; |
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} |
} |
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current_format = format; |
current_format = format; |
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} |
} |
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|
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wave_out_write(s, tick, packet_index); |
current_driver-> |
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wave_out_write(rdpsnd_dsp_process |
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(s, current_driver, &formats[current_format]), tick, |
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packet_index); |
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awaiting_data_packet = False; |
awaiting_data_packet = False; |
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return; |
return; |
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} |
} |
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awaiting_data_packet = True; |
awaiting_data_packet = True; |
248 |
break; |
break; |
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case RDPSND_CLOSE: |
case RDPSND_CLOSE: |
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wave_out_close(); |
current_driver->wave_out_close(); |
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device_open = False; |
device_open = False; |
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break; |
break; |
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case RDPSND_NEGOTIATE: |
case RDPSND_NEGOTIATE: |
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rdpsnd_process_negotiate(s); |
rdpsnd_process_negotiate(s); |
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break; |
break; |
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case RDPSND_UNKNOWN6: |
case RDPSND_SERVERTICK: |
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rdpsnd_process_unknown6(s); |
rdpsnd_process_servertick(s); |
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break; |
break; |
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case RDPSND_SET_VOLUME: |
case RDPSND_SET_VOLUME: |
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in_uint32(s, volume); |
in_uint32(s, volume); |
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if (device_open) |
if (device_open) |
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{ |
{ |
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wave_out_volume((volume & 0xffff), (volume & 0xffff0000) >> 16); |
current_driver->wave_out_volume((volume & 0xffff), |
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|
(volume & 0xffff0000) >> 16); |
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} |
} |
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break; |
break; |
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default: |
default: |
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rdpsnd_channel = |
rdpsnd_channel = |
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channel_register("rdpsnd", CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP, |
channel_register("rdpsnd", CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP, |
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rdpsnd_process); |
rdpsnd_process); |
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|
|
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return (rdpsnd_channel != NULL); |
return (rdpsnd_channel != NULL); |
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} |
} |
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|
|
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|
BOOL |
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|
rdpsnd_auto_open(void) |
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|
{ |
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current_driver = drivers; |
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while (current_driver != NULL) |
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{ |
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DEBUG(("trying %s...\n", current_driver->name)); |
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if (current_driver->wave_out_open()) |
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{ |
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DEBUG(("selected %s\n", current_driver->name)); |
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return True; |
294 |
|
} |
295 |
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g_dsp_fd = 0; |
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current_driver = current_driver->next; |
297 |
|
} |
298 |
|
|
299 |
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warning("no working audio-driver found\n"); |
300 |
|
|
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|
return False; |
302 |
|
} |
303 |
|
|
304 |
|
void |
305 |
|
rdpsnd_register_drivers(char *options) |
306 |
|
{ |
307 |
|
struct audio_driver **reg; |
308 |
|
|
309 |
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/* The order of registrations define the probe-order |
310 |
|
when opening the device for the first time */ |
311 |
|
reg = &drivers; |
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#if defined(RDPSND_ALSA) |
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*reg = alsa_register(options); |
314 |
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reg = &((*reg)->next); |
315 |
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#endif |
316 |
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#if defined(RDPSND_OSS) |
317 |
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*reg = oss_register(options); |
318 |
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reg = &((*reg)->next); |
319 |
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#endif |
320 |
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#if defined(RDPSND_SUN) |
321 |
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*reg = sun_register(options); |
322 |
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reg = &((*reg)->next); |
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#endif |
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#if defined(RDPSND_SGI) |
325 |
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*reg = sgi_register(options); |
326 |
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reg = &((*reg)->next); |
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#endif |
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#if defined(RDPSND_LIBAO) |
329 |
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*reg = libao_register(options); |
330 |
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reg = &((*reg)->next); |
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|
#endif |
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} |
333 |
|
|
334 |
|
BOOL |
335 |
|
rdpsnd_select_driver(char *driver, char *options) |
336 |
|
{ |
337 |
|
static struct audio_driver auto_driver; |
338 |
|
struct audio_driver *pos; |
339 |
|
|
340 |
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drivers = NULL; |
341 |
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rdpsnd_register_drivers(options); |
342 |
|
|
343 |
|
if (!driver) |
344 |
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{ |
345 |
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auto_driver.wave_out_open = &rdpsnd_auto_open; |
346 |
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current_driver = &auto_driver; |
347 |
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return True; |
348 |
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} |
349 |
|
|
350 |
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pos = drivers; |
351 |
|
while (pos != NULL) |
352 |
|
{ |
353 |
|
if (!strcmp(pos->name, driver)) |
354 |
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{ |
355 |
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DEBUG(("selected %s\n", pos->name)); |
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current_driver = pos; |
357 |
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return True; |
358 |
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} |
359 |
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pos = pos->next; |
360 |
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} |
361 |
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return False; |
362 |
|
} |
363 |
|
|
364 |
|
void |
365 |
|
rdpsnd_show_help(void) |
366 |
|
{ |
367 |
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struct audio_driver *pos; |
368 |
|
|
369 |
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rdpsnd_register_drivers(NULL); |
370 |
|
|
371 |
|
pos = drivers; |
372 |
|
while (pos != NULL) |
373 |
|
{ |
374 |
|
fprintf(stderr, " %s:\t%s\n", pos->name, pos->description); |
375 |
|
pos = pos->next; |
376 |
|
} |
377 |
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} |
378 |
|
|
379 |
|
inline void |
380 |
|
rdpsnd_play(void) |
381 |
|
{ |
382 |
|
current_driver->wave_out_play(); |
383 |
|
} |
384 |
|
|
385 |
|
void |
386 |
|
rdpsnd_queue_write(STREAM s, uint16 tick, uint8 index) |
387 |
|
{ |
388 |
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struct audio_packet *packet = &packet_queue[queue_hi]; |
389 |
|
unsigned int next_hi = (queue_hi + 1) % MAX_QUEUE; |
390 |
|
|
391 |
|
if (next_hi == queue_lo) |
392 |
|
{ |
393 |
|
error("No space to queue audio packet\n"); |
394 |
|
return; |
395 |
|
} |
396 |
|
|
397 |
|
queue_hi = next_hi; |
398 |
|
|
399 |
|
packet->s = *s; |
400 |
|
packet->tick = tick; |
401 |
|
packet->index = index; |
402 |
|
|
403 |
|
if (!g_dsp_busy) |
404 |
|
current_driver->wave_out_play(); |
405 |
|
} |
406 |
|
|
407 |
|
inline struct audio_packet * |
408 |
|
rdpsnd_queue_current_packet(void) |
409 |
|
{ |
410 |
|
return &packet_queue[queue_lo]; |
411 |
|
} |
412 |
|
|
413 |
|
inline BOOL |
414 |
|
rdpsnd_queue_empty(void) |
415 |
|
{ |
416 |
|
return (queue_lo == queue_hi); |
417 |
|
} |
418 |
|
|
419 |
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inline void |
420 |
|
rdpsnd_queue_init(void) |
421 |
|
{ |
422 |
|
queue_lo = queue_hi = 0; |
423 |
|
} |
424 |
|
|
425 |
|
inline void |
426 |
|
rdpsnd_queue_next(void) |
427 |
|
{ |
428 |
|
xfree(packet_queue[queue_lo].s.data); |
429 |
|
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
430 |
|
} |
431 |
|
|
432 |
|
inline int |
433 |
|
rdpsnd_queue_next_tick(void) |
434 |
|
{ |
435 |
|
if (((queue_lo + 1) % MAX_QUEUE) != queue_hi) |
436 |
|
{ |
437 |
|
return packet_queue[(queue_lo + 1) % MAX_QUEUE].tick; |
438 |
|
} |
439 |
|
else |
440 |
|
{ |
441 |
|
return (packet_queue[queue_lo].tick + 65535) % 65536; |
442 |
|
} |
443 |
|
} |