32 |
|
|
33 |
int g_dsp_fd; |
int g_dsp_fd; |
34 |
BOOL g_dsp_busy = False; |
BOOL g_dsp_busy = False; |
35 |
static BOOL reopened; |
static BOOL g_reopened; |
36 |
static BOOL swapaudio; |
static BOOL g_swapaudio; |
37 |
static short samplewidth; |
static short g_samplewidth; |
38 |
|
|
39 |
static struct audio_packet |
static struct audio_packet |
40 |
{ |
{ |
64 |
fcntl(g_dsp_fd, F_SETFL, fcntl(g_dsp_fd, F_GETFL) | O_NONBLOCK); |
fcntl(g_dsp_fd, F_SETFL, fcntl(g_dsp_fd, F_GETFL) | O_NONBLOCK); |
65 |
|
|
66 |
queue_lo = queue_hi = 0; |
queue_lo = queue_hi = 0; |
67 |
reopened = True; |
g_reopened = True; |
68 |
|
|
69 |
return True; |
return True; |
70 |
} |
} |
80 |
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
queue_lo = (queue_lo + 1) % MAX_QUEUE; |
81 |
} |
} |
82 |
|
|
83 |
|
#if defined I_FLUSH && defined FLUSHW |
84 |
/* Flush the audiobuffer */ |
/* Flush the audiobuffer */ |
85 |
ioctl(g_dsp_fd, I_FLUSH, FLUSHW); |
ioctl(g_dsp_fd, I_FLUSH, FLUSHW); |
86 |
|
#endif |
87 |
close(g_dsp_fd); |
close(g_dsp_fd); |
88 |
} |
} |
89 |
|
|
107 |
int test = 1; |
int test = 1; |
108 |
|
|
109 |
ioctl(g_dsp_fd, AUDIO_DRAIN, 0); |
ioctl(g_dsp_fd, AUDIO_DRAIN, 0); |
110 |
swapaudio = False; |
g_swapaudio = False; |
111 |
AUDIO_INITINFO(&info); |
AUDIO_INITINFO(&info); |
112 |
|
|
113 |
|
|
119 |
{ |
{ |
120 |
info.play.encoding = AUDIO_ENCODING_LINEAR; |
info.play.encoding = AUDIO_ENCODING_LINEAR; |
121 |
/* Do we need to swap the 16bit values? (Are we BigEndian) */ |
/* Do we need to swap the 16bit values? (Are we BigEndian) */ |
122 |
swapaudio = !(*(uint8 *) (&test)); |
g_swapaudio = !(*(uint8 *) (&test)); |
123 |
} |
} |
124 |
|
|
125 |
samplewidth = pwfx->wBitsPerSample / 8; |
g_samplewidth = pwfx->wBitsPerSample / 8; |
126 |
|
|
127 |
if (pwfx->nChannels == 1) |
if (pwfx->nChannels == 1) |
128 |
{ |
{ |
129 |
info.play.channels = AUDIO_CHANNELS_MONO; |
info.play.channels = 1; |
130 |
} |
} |
131 |
else if (pwfx->nChannels == 2) |
else if (pwfx->nChannels == 2) |
132 |
{ |
{ |
133 |
info.play.channels = AUDIO_CHANNELS_STEREO; |
info.play.channels = 2; |
134 |
samplewidth *= 2; |
g_samplewidth *= 2; |
135 |
} |
} |
136 |
|
|
137 |
info.play.sample_rate = pwfx->nSamplesPerSec; |
info.play.sample_rate = pwfx->nSamplesPerSec; |
139 |
info.play.samples = 0; |
info.play.samples = 0; |
140 |
info.play.eof = 0; |
info.play.eof = 0; |
141 |
info.play.error = 0; |
info.play.error = 0; |
142 |
reopened = True; |
g_reopened = True; |
143 |
|
|
144 |
if (ioctl(g_dsp_fd, AUDIO_SETINFO, &info) == -1) |
if (ioctl(g_dsp_fd, AUDIO_SETINFO, &info) == -1) |
145 |
{ |
{ |
229 |
|
|
230 |
while (1) |
while (1) |
231 |
{ |
{ |
232 |
if (reopened) |
if (g_reopened) |
233 |
{ |
{ |
234 |
/* Device was just (re)openend */ |
/* Device was just (re)openend */ |
235 |
samplecnt = 0; |
samplecnt = 0; |
236 |
swapped = False; |
swapped = False; |
237 |
sentcompletion = True; |
sentcompletion = True; |
238 |
reopened = False; |
g_reopened = False; |
239 |
} |
} |
240 |
|
|
241 |
if (queue_lo == queue_hi) |
if (queue_lo == queue_hi) |
248 |
out = &packet->s; |
out = &packet->s; |
249 |
|
|
250 |
/* Swap the current packet, but only once */ |
/* Swap the current packet, but only once */ |
251 |
if (swapaudio && !swapped) |
if (g_swapaudio && !swapped) |
252 |
{ |
{ |
253 |
for (i = 0; i < out->end - out->p; i += 2) |
for (i = 0; i < out->end - out->p; i += 2) |
254 |
{ |
{ |
262 |
if (sentcompletion) |
if (sentcompletion) |
263 |
{ |
{ |
264 |
sentcompletion = False; |
sentcompletion = False; |
265 |
numsamples = (out->end - out->p) / samplewidth; |
numsamples = (out->end - out->p) / g_samplewidth; |
266 |
} |
} |
267 |
|
|
268 |
len = 0; |
len = 0; |