ReactOS  0.4.13-dev-52-g0efcfec
rdpsnd_sun.c
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1 /* -*- c-basic-offset: 8 -*-
2  rdesktop: A Remote Desktop Protocol client.
3  Sound Channel Process Functions - Sun
4  Copyright (C) Matthew Chapman 2003
5  Copyright (C) GuoJunBo guojunbo@ict.ac.cn 2003
6  Copyright (C) Michael Gernoth mike@zerfleddert.de 2003
7 
8  This program is free software; you can redistribute it and/or modify
9  it under the terms of the GNU General Public License as published by
10  the Free Software Foundation; either version 2 of the License, or
11  (at your option) any later version.
12 
13  This program is distributed in the hope that it will be useful,
14  but WITHOUT ANY WARRANTY; without even the implied warranty of
15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  GNU General Public License for more details.
17 
18  You should have received a copy of the GNU General Public License along
19  with this program; if not, write to the Free Software Foundation, Inc.,
20  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 */
22 
23 #include "rdesktop.h"
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <errno.h>
27 #include <sys/ioctl.h>
28 #include <sys/audioio.h>
29 
30 #if (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
31 #include <stropts.h>
32 #endif
33 
34 #define MAX_QUEUE 10
35 
36 int This->dsp_;
37 BOOL This->dsp_bu = False;
40 static short g_samplewidth;
41 
42 static struct audio_packet
43 {
44  struct stream s;
45  uint16 tick;
46  uint8 index;
48 static unsigned int queue_hi, queue_lo;
49 
50 BOOL
52 {
53  char *dsp_dev = getenv("AUDIODEV");
54 
55  if (dsp_dev == NULL)
56  {
57  dsp_dev = xstrdup("/dev/audio");
58  }
59 
60  if ((This->dsp_ = open(dsp_dev, O_WRONLY | O_NONBLOCK)) == -1)
61  {
62  perror(dsp_dev);
63  return False;
64  }
65 
66  /* Non-blocking so that user interface is responsive */
67  fcntl(This->dsp_, F_SETFL, fcntl(This->dsp_, F_GETFL) | O_NONBLOCK);
68 
69  queue_lo = queue_hi = 0;
70  g_reopened = True;
71 
72  return True;
73 }
74 
75 void
77 {
78  /* Ack all remaining packets */
79  while (queue_lo != queue_hi)
80  {
82  free(packet_queue[queue_lo].s.data);
83  queue_lo = (queue_lo + 1) % MAX_QUEUE;
84  }
85 
86 #if defined I_FLUSH && defined FLUSHW
87  /* Flush the audiobuffer */
88  ioctl(This->dsp_, I_FLUSH, FLUSHW);
89 #endif
90 #if defined AUDIO_FLUSH
91  ioctl(This->dsp_, AUDIO_FLUSH, NULL);
92 #endif
93  close(This->dsp_);
94 }
95 
96 BOOL
98 {
99  if (pwfx->wFormatTag != WAVE_FORMAT_PCM)
100  return False;
101  if ((pwfx->nChannels != 1) && (pwfx->nChannels != 2))
102  return False;
103  if ((pwfx->wBitsPerSample != 8) && (pwfx->wBitsPerSample != 16))
104  return False;
105 
106  return True;
107 }
108 
109 BOOL
111 {
112  audio_info_t info;
113 
114  ioctl(This->dsp_, AUDIO_DRAIN, 0);
115  g_swapaudio = False;
116  AUDIO_INITINFO(&info);
117 
118 
119  if (pwfx->wBitsPerSample == 8)
120  {
121  info.play.encoding = AUDIO_ENCODING_LINEAR8;
122  }
123  else if (pwfx->wBitsPerSample == 16)
124  {
125  info.play.encoding = AUDIO_ENCODING_LINEAR;
126  /* Do we need to swap the 16bit values? (Are we BigEndian) */
127 #ifdef B_ENDIAN
128  g_swapaudio = 1;
129 #else
130  g_swapaudio = 0;
131 #endif
132  }
133 
134  g_samplewidth = pwfx->wBitsPerSample / 8;
135 
136  if (pwfx->nChannels == 1)
137  {
138  info.play.channels = 1;
139  }
140  else if (pwfx->nChannels == 2)
141  {
142  info.play.channels = 2;
143  g_samplewidth *= 2;
144  }
145 
146  info.play.sample_rate = pwfx->nSamplesPerSec;
147  info.play.precision = pwfx->wBitsPerSample;
148  info.play.samples = 0;
149  info.play.eof = 0;
150  info.play.error = 0;
151  g_reopened = True;
152 
153  if (ioctl(This->dsp_, AUDIO_SETINFO, &info) == -1)
154  {
155  perror("AUDIO_SETINFO");
156  close(This->dsp_);
157  return False;
158  }
159 
160  return True;
161 }
162 
163 void
165 {
166  audio_info_t info;
167  uint balance;
168  uint volume;
169 
170  AUDIO_INITINFO(&info);
171 
172  volume = (left > right) ? left : right;
173 
174  if (volume / AUDIO_MID_BALANCE != 0)
175  {
176  balance =
177  AUDIO_MID_BALANCE - (left / (volume / AUDIO_MID_BALANCE)) +
178  (right / (volume / AUDIO_MID_BALANCE));
179  }
180  else
181  {
182  balance = AUDIO_MID_BALANCE;
183  }
184 
185  info.play.gain = volume / (65536 / AUDIO_MAX_GAIN);
186  info.play.balance = balance;
187 
188  if (ioctl(This->dsp_, AUDIO_SETINFO, &info) == -1)
189  {
190  perror("AUDIO_SETINFO");
191  return;
192  }
193 }
194 
195 void
197 {
199  unsigned int next_hi = (queue_hi + 1) % MAX_QUEUE;
200 
201  if (next_hi == queue_lo)
202  {
203  error("No space to queue audio packet\n");
204  return;
205  }
206 
207  queue_hi = next_hi;
208 
209  packet->s = *s;
210  packet->tick = tick;
211  packet->index = index;
212  packet->s.p += 4;
213 
214  /* we steal the data buffer from s, give it a new one */
215  s->data = malloc(s->size);
216 
217  if (!This->dsp_bu)
218  wave_out_play();
219 }
220 
221 void
223 {
224  struct audio_packet *packet;
225  audio_info_t info;
226  ssize_t len;
227  unsigned int i;
228  uint8 swap;
229  STREAM out;
230  static BOOL swapped = False;
231  static BOOL sentcompletion = True;
232  static uint32 samplecnt = 0;
233  static uint32 numsamples;
234 
235  while (1)
236  {
237  if (g_reopened)
238  {
239  /* Device was just (re)openend */
240  samplecnt = 0;
241  swapped = False;
242  sentcompletion = True;
243  g_reopened = False;
244  }
245 
246  if (queue_lo == queue_hi)
247  {
248  This->dsp_bu = 0;
249  return;
250  }
251 
253  out = &packet->s;
254 
255  /* Swap the current packet, but only once */
256  if (g_swapaudio && !swapped)
257  {
258  for (i = 0; i < out->end - out->p; i += 2)
259  {
260  swap = *(out->p + i);
261  *(out->p + i) = *(out->p + i + 1);
262  *(out->p + i + 1) = swap;
263  }
264  swapped = True;
265  }
266 
267  if (sentcompletion)
268  {
269  sentcompletion = False;
270  numsamples = (out->end - out->p) / g_samplewidth;
271  }
272 
273  len = 0;
274 
275  if (out->end != out->p)
276  {
277  len = write(This->dsp_, out->p, out->end - out->p);
278  if (len == -1)
279  {
280  if (errno != EWOULDBLOCK)
281  perror("write audio");
282  This->dsp_bu = 1;
283  return;
284  }
285  }
286 
287  out->p += len;
288  if (out->p == out->end)
289  {
290  if (ioctl(This->dsp_, AUDIO_GETINFO, &info) == -1)
291  {
292  perror("AUDIO_GETINFO");
293  return;
294  }
295 
296  /* Ack the packet, if we have played at least 70% */
297  if (info.play.samples >= samplecnt + ((numsamples * 7) / 10))
298  {
299  samplecnt += numsamples;
300  rdpsnd_send_completion(packet->tick, packet->index);
301  free(out->data);
302  queue_lo = (queue_lo + 1) % MAX_QUEUE;
303  swapped = False;
304  sentcompletion = True;
305  }
306  else
307  {
308  This->dsp_bu = 1;
309  return;
310  }
311  }
312  }
313 }
void wave_out_close(void)
Definition: rdpsnd_sun.c:76
static BOOL g_swapaudio
Definition: rdpsnd_sun.c:39
#define swap(a, b)
Definition: qsort.c:63
static unsigned int queue_lo
Definition: rdpsnd_sun.c:48
#define error(str)
Definition: mkdosfs.c:1605
UCHAR packet[_PAGE_SIZE]
Definition: serial.c:53
#define open
Definition: acwin.h:71
static BOOL g_reopened
Definition: rdpsnd_sun.c:38
unsigned int uint32
Definition: types.h:32
#define O_NONBLOCK
Definition: port.h:158
#define free
Definition: debug_ros.c:5
BOOL wave_out_open(void)
Definition: rdpsnd_sun.c:51
int errno
#define MAX_QUEUE
Definition: rdpsnd_sun.c:34
void wave_out_write(STREAM s, uint16 tick, uint8 index)
Definition: rdpsnd_sun.c:196
struct _test_info info[]
Definition: SetCursorPos.c:19
#define write
Definition: acwin.h:73
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define WAVE_FORMAT_PCM
Definition: constants.h:425
_CRTIMP void __cdecl perror(_In_opt_z_ const char *_ErrMsg)
unsigned int BOOL
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#define O_WRONLY
Definition: acwin.h:85
#define ioctl
Definition: wintirpc.h:60
#define EWOULDBLOCK
Definition: errno.h:42
WORD wBitsPerSample
Definition: audioclient.idl:45
BOOL wave_out_set_format(WAVEFORMATEX *pwfx)
Definition: rdpsnd_sun.c:110
void wave_out_volume(uint16 left, uint16 right)
Definition: rdpsnd_sun.c:164
smooth NULL
Definition: ftsmooth.c:416
GLuint index
Definition: glext.h:6031
DWORD nSamplesPerSec
Definition: audioclient.idl:42
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Definition: types.h:24
#define False
Definition: types.h:25
static unsigned int queue_hi
Definition: rdpsnd_sun.c:48
static FILE * out
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GLint left
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unsigned char uint8
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int ssize_t
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Definition: gl.h:2039
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Definition: acwin.h:74
static short g_samplewidth
Definition: rdpsnd_sun.c:40
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Definition: rdpsnd_sun.c:97
_Check_return_ char *__cdecl getenv(_In_z_ const char *_VarName)
void rdpsnd_send_completion(RDPCLIENT *This, uint16 tick, uint8 packet_index)
Definition: rdpsnd.c:55
unsigned short uint16
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void wave_out_play(void)
Definition: rdpsnd_sun.c:222
static struct audio_packet packet_queue[MAX_QUEUE]
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UINT32 uint
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