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/* -*- c-basic-offset: 8 -*- |
/* -*- c-basic-offset: 8 -*- |
2 |
rdesktop: A Remote Desktop Protocol client. |
rdesktop: A Remote Desktop Protocol client. |
3 |
Sound Channel Process Functions - Sun |
Sound Channel Process Functions - Sun |
4 |
Copyright (C) Matthew Chapman 2003-2007 |
Copyright (C) Matthew Chapman 2003-2008 |
5 |
Copyright (C) GuoJunBo guojunbo@ict.ac.cn 2003 |
Copyright (C) GuoJunBo guojunbo@ict.ac.cn 2003 |
6 |
Copyright (C) Michael Gernoth mike@zerfleddert.de 2003-2007 |
Copyright (C) Michael Gernoth mike@zerfleddert.de 2003-2008 |
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|
Copyright 2007-2008 Pierre Ossman <ossman@cendio.se> for Cendio AB |
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|
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This program is free software; you can redistribute it and/or modify |
This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
it under the terms of the GNU General Public License as published by |
28 |
#include <errno.h> |
#include <errno.h> |
29 |
#include <sys/ioctl.h> |
#include <sys/ioctl.h> |
30 |
#include <sys/audioio.h> |
#include <sys/audioio.h> |
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|
#include <string.h> |
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|
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#if (defined(sun) && (defined(__svr4__) || defined(__SVR4))) |
#if (defined(sun) && (defined(__svr4__) || defined(__SVR4))) |
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#include <stropts.h> |
#include <stropts.h> |
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#endif |
#endif |
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|
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#define DEFAULTDEVICE "/dev/audio" |
#define DEFAULTDEVICE "/dev/audio" |
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#define MAX_LEN 512 |
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|
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static int dsp_fd = -1; |
static int dsp_fd = -1; |
41 |
static RD_BOOL dsp_busy; |
static int dsp_mode; |
42 |
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static int dsp_refs; |
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|
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static RD_BOOL g_reopened; |
static RD_BOOL dsp_configured; |
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static short g_samplewidth; |
static RD_BOOL dsp_broken; |
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static RD_BOOL broken_2_channel_record = False; |
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|
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static RD_BOOL dsp_out; |
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static RD_BOOL dsp_in; |
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static int stereo; |
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static int format; |
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static uint32 snd_rate; |
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static short samplewidth; |
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static char *dsp_dev; |
static char *dsp_dev; |
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|
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static uint_t written_samples; |
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|
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void sun_play(void); |
void sun_play(void); |
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void sun_record(void); |
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|
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static int |
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sun_pause(void) |
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{ |
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audio_info_t info; |
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|
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AUDIO_INITINFO(&info); |
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|
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info.record.pause = 1; |
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|
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if (ioctl(dsp_fd, AUDIO_SETINFO, &info) == -1) |
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return -1; |
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|
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#if defined I_FLUSH && defined FLUSHR |
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if (ioctl(dsp_fd, I_FLUSH, FLUSHR) == -1) |
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return -1; |
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#endif |
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|
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return 0; |
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} |
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static int |
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sun_resume(void) |
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{ |
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audio_info_t info; |
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|
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AUDIO_INITINFO(&info); |
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info.record.pause = 0; |
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|
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if (ioctl(dsp_fd, AUDIO_SETINFO, &info) == -1) |
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return -1; |
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|
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return 0; |
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} |
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|
97 |
void |
void |
98 |
sun_add_fds(int *n, fd_set * rfds, fd_set * wfds, struct timeval *tv) |
sun_add_fds(int *n, fd_set * rfds, fd_set * wfds, struct timeval *tv) |
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if (dsp_fd == -1) |
if (dsp_fd == -1) |
101 |
return; |
return; |
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|
|
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if (rdpsnd_queue_empty()) |
if (dsp_out && !rdpsnd_queue_empty()) |
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return; |
FD_SET(dsp_fd, wfds); |
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|
if (dsp_in) |
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FD_SET(dsp_fd, wfds); |
FD_SET(dsp_fd, rfds); |
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if (dsp_fd > *n) |
if (dsp_fd > *n) |
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*n = dsp_fd; |
*n = dsp_fd; |
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} |
} |
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{ |
{ |
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if (FD_ISSET(dsp_fd, wfds)) |
if (FD_ISSET(dsp_fd, wfds)) |
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sun_play(); |
sun_play(); |
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if (FD_ISSET(dsp_fd, rfds)) |
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sun_record(); |
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} |
} |
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|
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RD_BOOL |
RD_BOOL |
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sun_open(void) |
sun_open(int mode) |
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{ |
{ |
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if ((dsp_fd = open(dsp_dev, O_WRONLY | O_NONBLOCK)) == -1) |
audio_info_t info; |
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|
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if (dsp_fd != -1) |
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{ |
{ |
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perror(dsp_dev); |
dsp_refs++; |
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|
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if (dsp_mode == O_RDWR) |
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return True; |
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|
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if (dsp_mode == mode) |
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return True; |
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|
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dsp_refs--; |
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return False; |
return False; |
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} |
} |
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|
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/* Non-blocking so that user interface is responsive */ |
dsp_configured = False; |
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fcntl(dsp_fd, F_SETFL, fcntl(dsp_fd, F_GETFL) | O_NONBLOCK); |
dsp_broken = False; |
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|
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written_samples = 0; |
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dsp_mode = O_RDWR; |
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dsp_fd = open(dsp_dev, O_RDWR | O_NONBLOCK); |
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if (dsp_fd != -1) |
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{ |
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AUDIO_INITINFO(&info); |
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|
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if ((ioctl(dsp_fd, AUDIO_GETINFO, &info) == -1) |
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|| !(info.hw_features & AUDIO_HWFEATURE_DUPLEX)) |
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{ |
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close(dsp_fd); |
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dsp_fd = -1; |
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} |
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} |
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|
158 |
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if (dsp_fd == -1) |
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{ |
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dsp_mode = mode; |
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|
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dsp_fd = open(dsp_dev, dsp_mode | O_NONBLOCK); |
163 |
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if (dsp_fd == -1) |
164 |
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{ |
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perror(dsp_dev); |
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return False; |
167 |
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} |
168 |
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} |
169 |
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|
170 |
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/* |
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* Pause recording until we actually start using it. |
172 |
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*/ |
173 |
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if (dsp_mode != O_WRONLY) |
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{ |
175 |
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if (sun_pause() == -1) |
176 |
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{ |
177 |
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close(dsp_fd); |
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dsp_fd = -1; |
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return False; |
180 |
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} |
181 |
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} |
182 |
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|
183 |
g_reopened = True; |
dsp_refs++; |
184 |
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|
185 |
return True; |
return True; |
186 |
} |
} |
188 |
void |
void |
189 |
sun_close(void) |
sun_close(void) |
190 |
{ |
{ |
191 |
/* Ack all remaining packets */ |
dsp_refs--; |
192 |
while (!rdpsnd_queue_empty()) |
|
193 |
rdpsnd_queue_next(0); |
if (dsp_refs != 0) |
194 |
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return; |
195 |
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|
196 |
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close(dsp_fd); |
197 |
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dsp_fd = -1; |
198 |
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} |
199 |
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|
200 |
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RD_BOOL |
201 |
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sun_open_out(void) |
202 |
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{ |
203 |
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if (!sun_open(O_WRONLY)) |
204 |
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return False; |
205 |
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|
206 |
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dsp_out = True; |
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|
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return True; |
209 |
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} |
210 |
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|
211 |
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void |
212 |
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sun_close_out(void) |
213 |
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{ |
214 |
#if defined I_FLUSH && defined FLUSHW |
#if defined I_FLUSH && defined FLUSHW |
215 |
/* Flush the audiobuffer */ |
/* Flush the audiobuffer */ |
216 |
ioctl(dsp_fd, I_FLUSH, FLUSHW); |
ioctl(dsp_fd, I_FLUSH, FLUSHW); |
218 |
#if defined AUDIO_FLUSH |
#if defined AUDIO_FLUSH |
219 |
ioctl(dsp_fd, AUDIO_FLUSH, NULL); |
ioctl(dsp_fd, AUDIO_FLUSH, NULL); |
220 |
#endif |
#endif |
221 |
close(dsp_fd); |
|
222 |
dsp_fd = -1; |
sun_close(); |
223 |
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|
224 |
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/* Ack all remaining packets */ |
225 |
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while (!rdpsnd_queue_empty()) |
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rdpsnd_queue_next(0); |
227 |
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|
228 |
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dsp_out = False; |
229 |
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} |
230 |
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RD_BOOL |
232 |
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sun_open_in(void) |
233 |
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{ |
234 |
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#if ! (defined I_FLUSH && defined FLUSHR) |
235 |
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/* |
236 |
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* It is not possible to reliably use the recording without |
237 |
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* flush operations. |
238 |
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*/ |
239 |
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return False; |
240 |
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#endif |
241 |
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|
242 |
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if (!sun_open(O_RDONLY)) |
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return False; |
244 |
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|
245 |
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/* 2 channel recording is known to be broken on Solaris x86 |
246 |
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Sun Ray systems */ |
247 |
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#ifdef L_ENDIAN |
248 |
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if (strstr(dsp_dev, "/utaudio/")) |
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broken_2_channel_record = True; |
250 |
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#endif |
251 |
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|
252 |
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/* |
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* Unpause the stream now that we have someone using it. |
254 |
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*/ |
255 |
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if (sun_resume() == -1) |
256 |
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{ |
257 |
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sun_close(); |
258 |
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return False; |
259 |
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} |
260 |
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|
261 |
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dsp_in = True; |
262 |
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|
263 |
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return True; |
264 |
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} |
265 |
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|
266 |
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void |
267 |
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sun_close_in(void) |
268 |
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{ |
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/* |
270 |
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* Repause the stream when the user goes away. |
271 |
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*/ |
272 |
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sun_pause(); |
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|
274 |
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sun_close(); |
275 |
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|
276 |
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dsp_in = False; |
277 |
} |
} |
278 |
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|
279 |
RD_BOOL |
RD_BOOL |
297 |
ioctl(dsp_fd, AUDIO_DRAIN, 0); |
ioctl(dsp_fd, AUDIO_DRAIN, 0); |
298 |
AUDIO_INITINFO(&info); |
AUDIO_INITINFO(&info); |
299 |
|
|
300 |
|
if (dsp_configured) |
|
if (pwfx->wBitsPerSample == 8) |
|
301 |
{ |
{ |
302 |
info.play.encoding = AUDIO_ENCODING_LINEAR8; |
if ((pwfx->wBitsPerSample == 8) && (format != AUDIO_ENCODING_LINEAR8)) |
303 |
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return False; |
304 |
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if ((pwfx->wBitsPerSample == 16) && (format != AUDIO_ENCODING_LINEAR)) |
305 |
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return False; |
306 |
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|
307 |
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if ((pwfx->nChannels == 2) != !!stereo) |
308 |
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return False; |
309 |
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|
310 |
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if (pwfx->nSamplesPerSec != snd_rate) |
311 |
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return False; |
312 |
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|
313 |
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return True; |
314 |
} |
} |
315 |
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|
316 |
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sun_pause(); |
317 |
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|
318 |
|
if (pwfx->wBitsPerSample == 8) |
319 |
|
format = AUDIO_ENCODING_LINEAR8; |
320 |
else if (pwfx->wBitsPerSample == 16) |
else if (pwfx->wBitsPerSample == 16) |
321 |
{ |
format = AUDIO_ENCODING_LINEAR; |
322 |
info.play.encoding = AUDIO_ENCODING_LINEAR; |
|
323 |
} |
samplewidth = pwfx->wBitsPerSample / 8; |
324 |
|
|
325 |
g_samplewidth = pwfx->wBitsPerSample / 8; |
info.play.channels = pwfx->nChannels; |
326 |
|
info.record.channels = info.play.channels; |
327 |
|
|
328 |
if (pwfx->nChannels == 1) |
if (pwfx->nChannels == 1) |
329 |
{ |
{ |
330 |
info.play.channels = 1; |
stereo = 0; |
331 |
} |
} |
332 |
else if (pwfx->nChannels == 2) |
else if (pwfx->nChannels == 2) |
333 |
{ |
{ |
334 |
info.play.channels = 2; |
stereo = 1; |
335 |
g_samplewidth *= 2; |
samplewidth *= 2; |
336 |
|
|
337 |
|
if (broken_2_channel_record) |
338 |
|
{ |
339 |
|
info.record.channels = 1; |
340 |
|
} |
341 |
} |
} |
342 |
|
|
343 |
|
snd_rate = pwfx->nSamplesPerSec; |
344 |
|
|
345 |
info.play.sample_rate = pwfx->nSamplesPerSec; |
info.play.sample_rate = pwfx->nSamplesPerSec; |
346 |
info.play.precision = pwfx->wBitsPerSample; |
info.play.precision = pwfx->wBitsPerSample; |
347 |
|
info.play.encoding = format; |
348 |
info.play.samples = 0; |
info.play.samples = 0; |
349 |
info.play.eof = 0; |
info.play.eof = 0; |
350 |
info.play.error = 0; |
info.play.error = 0; |
351 |
g_reopened = True; |
|
352 |
|
info.record.sample_rate = info.play.sample_rate; |
353 |
|
info.record.precision = info.play.precision; |
354 |
|
info.record.encoding = info.play.encoding; |
355 |
|
info.record.samples = 0; |
356 |
|
info.record.error = 0; |
357 |
|
|
358 |
if (ioctl(dsp_fd, AUDIO_SETINFO, &info) == -1) |
if (ioctl(dsp_fd, AUDIO_SETINFO, &info) == -1) |
359 |
{ |
{ |
362 |
return False; |
return False; |
363 |
} |
} |
364 |
|
|
365 |
|
dsp_configured = True; |
366 |
|
|
367 |
|
if (dsp_in) |
368 |
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sun_resume(); |
369 |
|
|
370 |
return True; |
return True; |
371 |
} |
} |
372 |
|
|
406 |
sun_play(void) |
sun_play(void) |
407 |
{ |
{ |
408 |
struct audio_packet *packet; |
struct audio_packet *packet; |
|
audio_info_t info; |
|
409 |
ssize_t len; |
ssize_t len; |
|
unsigned int i; |
|
410 |
STREAM out; |
STREAM out; |
|
static RD_BOOL sentcompletion = True; |
|
|
static uint32 samplecnt = 0; |
|
|
static uint32 numsamples; |
|
411 |
|
|
412 |
while (1) |
/* We shouldn't be called if the queue is empty, but still */ |
413 |
|
if (rdpsnd_queue_empty()) |
414 |
|
return; |
415 |
|
|
416 |
|
packet = rdpsnd_queue_current_packet(); |
417 |
|
out = &packet->s; |
418 |
|
|
419 |
|
len = out->end - out->p; |
420 |
|
|
421 |
|
len = write(dsp_fd, out->p, (len > MAX_LEN) ? MAX_LEN : len); |
422 |
|
if (len == -1) |
423 |
{ |
{ |
424 |
if (g_reopened) |
if (errno != EWOULDBLOCK) |
425 |
{ |
{ |
426 |
/* Device was just (re)openend */ |
if (!dsp_broken) |
427 |
samplecnt = 0; |
perror("RDPSND: write()"); |
428 |
sentcompletion = True; |
dsp_broken = True; |
429 |
g_reopened = False; |
rdpsnd_queue_next(0); |
430 |
} |
} |
431 |
|
return; |
432 |
|
} |
433 |
|
|
434 |
if (rdpsnd_queue_empty()) |
written_samples += len / (samplewidth * (stereo ? 2 : 1)); |
|
return; |
|
435 |
|
|
436 |
packet = rdpsnd_queue_current_packet(); |
dsp_broken = False; |
|
out = &packet->s; |
|
437 |
|
|
438 |
if (sentcompletion) |
out->p += len; |
|
{ |
|
|
sentcompletion = False; |
|
|
numsamples = (out->end - out->p) / g_samplewidth; |
|
|
} |
|
439 |
|
|
440 |
len = 0; |
if (out->p == out->end) |
441 |
|
{ |
442 |
|
audio_info_t info; |
443 |
|
uint_t delay_samples; |
444 |
|
unsigned long delay_us; |
445 |
|
|
446 |
|
if (ioctl(dsp_fd, AUDIO_GETINFO, &info) != -1) |
447 |
|
delay_samples = written_samples - info.play.samples; |
448 |
|
else |
449 |
|
delay_samples = out->size / (samplewidth * (stereo ? 2 : 1)); |
450 |
|
|
451 |
if (out->end != out->p) |
delay_us = delay_samples * (1000000 / snd_rate); |
452 |
{ |
rdpsnd_queue_next(delay_us); |
453 |
len = write(dsp_fd, out->p, out->end - out->p); |
} |
454 |
if (len == -1) |
} |
455 |
{ |
|
456 |
if (errno != EWOULDBLOCK) |
void |
457 |
perror("write audio"); |
sun_record(void) |
458 |
return; |
{ |
459 |
} |
char buffer[32768]; |
460 |
} |
int len; |
461 |
|
|
462 |
|
len = read(dsp_fd, buffer, sizeof(buffer) / 2); |
463 |
|
if (len == -1) |
464 |
|
{ |
465 |
|
if (errno != EWOULDBLOCK) |
466 |
|
perror("read audio"); |
467 |
|
return; |
468 |
|
} |
469 |
|
|
470 |
out->p += len; |
if (broken_2_channel_record) |
471 |
if (out->p == out->end) |
{ |
472 |
|
unsigned int i; |
473 |
|
int rec_samplewidth = samplewidth / 2; |
474 |
|
/* Loop over each byte read backwards and put in place */ |
475 |
|
i = len - 1; |
476 |
|
do |
477 |
{ |
{ |
478 |
if (ioctl(dsp_fd, AUDIO_GETINFO, &info) == -1) |
int samples_before = i / rec_samplewidth * 2; |
479 |
{ |
int sample_byte = i % rec_samplewidth; |
480 |
perror("AUDIO_GETINFO"); |
int ch1_offset = samples_before * rec_samplewidth + sample_byte; |
481 |
return; |
// Channel 1 |
482 |
} |
buffer[ch1_offset] = buffer[i]; |
483 |
|
// Channel 2 |
484 |
/* Ack the packet, if we have played at least 70% */ |
buffer[ch1_offset + rec_samplewidth] = buffer[i]; |
485 |
if (info.play.samples >= samplecnt + ((numsamples * 7) / 10)) |
|
486 |
{ |
i--; |
|
samplecnt += numsamples; |
|
|
/* We need to add 50 to tell windows that time has passed while |
|
|
* playing this packet */ |
|
|
rdpsnd_queue_next(50); |
|
|
sentcompletion = True; |
|
|
} |
|
|
else |
|
|
{ |
|
|
return; |
|
|
} |
|
487 |
} |
} |
488 |
|
while (i); |
489 |
|
len *= 2; |
490 |
} |
} |
491 |
|
|
492 |
|
rdpsnd_record(buffer, len); |
493 |
} |
} |
494 |
|
|
495 |
struct audio_driver * |
struct audio_driver * |
506 |
sun_driver.add_fds = sun_add_fds; |
sun_driver.add_fds = sun_add_fds; |
507 |
sun_driver.check_fds = sun_check_fds; |
sun_driver.check_fds = sun_check_fds; |
508 |
|
|
509 |
sun_driver.wave_out_open = sun_open; |
sun_driver.wave_out_open = sun_open_out; |
510 |
sun_driver.wave_out_close = sun_close; |
sun_driver.wave_out_close = sun_close_out; |
511 |
sun_driver.wave_out_format_supported = sun_format_supported; |
sun_driver.wave_out_format_supported = sun_format_supported; |
512 |
sun_driver.wave_out_set_format = sun_set_format; |
sun_driver.wave_out_set_format = sun_set_format; |
513 |
sun_driver.wave_out_volume = sun_volume; |
sun_driver.wave_out_volume = sun_volume; |
514 |
|
|
515 |
|
sun_driver.wave_in_open = sun_open_in; |
516 |
|
sun_driver.wave_in_close = sun_close_in; |
517 |
|
sun_driver.wave_in_format_supported = sun_format_supported; |
518 |
|
sun_driver.wave_in_set_format = sun_set_format; |
519 |
|
sun_driver.wave_in_volume = NULL; /* FIXME */ |
520 |
|
|
521 |
sun_driver.need_byteswap_on_be = 1; |
sun_driver.need_byteswap_on_be = 1; |
522 |
sun_driver.need_resampling = 0; |
sun_driver.need_resampling = 0; |
523 |
|
|