33 |
BOOL g_dsp_busy = False; |
BOOL g_dsp_busy = False; |
34 |
static int g_snd_rate; |
static int g_snd_rate; |
35 |
static short g_samplewidth; |
static short g_samplewidth; |
36 |
|
static BOOL g_driver_broken = False; |
37 |
|
|
38 |
static struct audio_packet |
static struct audio_packet |
39 |
{ |
{ |
86 |
BOOL |
BOOL |
87 |
wave_out_set_format(WAVEFORMATEX * pwfx) |
wave_out_set_format(WAVEFORMATEX * pwfx) |
88 |
{ |
{ |
89 |
int stereo, format; |
int stereo, format, fragments; |
90 |
|
|
91 |
ioctl(g_dsp_fd, SNDCTL_DSP_RESET, NULL); |
ioctl(g_dsp_fd, SNDCTL_DSP_RESET, NULL); |
92 |
ioctl(g_dsp_fd, SNDCTL_DSP_SYNC, NULL); |
ioctl(g_dsp_fd, SNDCTL_DSP_SYNC, NULL); |
130 |
return False; |
return False; |
131 |
} |
} |
132 |
|
|
133 |
|
/* try to get 7 fragments of 2^12 bytes size */ |
134 |
|
fragments = (7 << 16) + 12; |
135 |
|
ioctl(g_dsp_fd, SNDCTL_DSP_SETFRAGMENT, &fragments); |
136 |
|
|
137 |
|
if (!g_driver_broken) |
138 |
|
{ |
139 |
|
audio_buf_info info; |
140 |
|
|
141 |
|
if (ioctl(g_dsp_fd, SNDCTL_DSP_GETOSPACE, &info) == -1) |
142 |
|
{ |
143 |
|
perror("SNDCTL_DSP_GETOSPACE"); |
144 |
|
close(g_dsp_fd); |
145 |
|
return False; |
146 |
|
} |
147 |
|
|
148 |
|
if (info.fragments == 0 || info.fragstotal == 0 || info.fragsize == 0) |
149 |
|
{ |
150 |
|
fprintf(stderr, |
151 |
|
"Broken OSS-driver detected: fragments: %d, fragstotal: %d, fragsize: %d\n", |
152 |
|
info.fragments, info.fragstotal, info.fragsize); |
153 |
|
g_driver_broken = True; |
154 |
|
} |
155 |
|
} |
156 |
|
|
157 |
return True; |
return True; |
158 |
} |
} |
159 |
|
|
228 |
static long startedat_s; |
static long startedat_s; |
229 |
static BOOL started = False; |
static BOOL started = False; |
230 |
struct timeval tv; |
struct timeval tv; |
231 |
|
audio_buf_info info; |
232 |
|
|
233 |
while (1) |
while (1) |
234 |
{ |
{ |
249 |
started = True; |
started = True; |
250 |
} |
} |
251 |
|
|
252 |
len = write(g_dsp_fd, out->p, out->end - out->p); |
len = out->end - out->p; |
253 |
|
|
254 |
|
if (!g_driver_broken) |
255 |
|
{ |
256 |
|
if (ioctl(g_dsp_fd, SNDCTL_DSP_GETOSPACE, &info) == -1) |
257 |
|
{ |
258 |
|
perror("SNDCTL_DSP_GETOSPACE"); |
259 |
|
return; |
260 |
|
} |
261 |
|
|
262 |
|
if (info.fragments == 0) |
263 |
|
{ |
264 |
|
g_dsp_busy = 1; |
265 |
|
return; |
266 |
|
} |
267 |
|
|
268 |
|
if (info.fragments * info.fragsize < len |
269 |
|
&& info.fragments * info.fragsize > 0) |
270 |
|
{ |
271 |
|
len = info.fragments * info.fragsize; |
272 |
|
} |
273 |
|
} |
274 |
|
|
275 |
|
|
276 |
|
len = write(g_dsp_fd, out->p, len); |
277 |
if (len == -1) |
if (len == -1) |
278 |
{ |
{ |
279 |
if (errno != EWOULDBLOCK) |
if (errno != EWOULDBLOCK) |