lxdream 0.9.1| filename | src/drivers/audio_pulse.c |
| changeset | 736:a02d1475ccfd |
| prev | 710:f6eaa3bcfa5b |
| next | 1024:c67f2d61ab97 |
| author | nkeynes |
| date | Wed Nov 05 10:05:08 2008 +0000 (15 years ago) |
| permissions | -rw-r--r-- |
| last change | Fix (extremely boneheaded) failure to convert pc to physical address before storing in the translation cache (in other words, the translation cache was effectively disabled for MMU code). MMU code is now about 3 times faster... |
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1 /**
2 * $Id$
3 *
4 * The pulseaudio sound driver
5 *
6 * Copyright (c) 2005 Nathan Keynes.
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 #include <stdio.h>
19 #include <unistd.h>
20 #include <pulse/simple.h>
21 #include "aica/audio.h"
22 #include "lxdream.h"
24 static pa_simple *pulse_server = NULL;
26 gboolean audio_pulse_init( )
27 {
28 int rate = DEFAULT_SAMPLE_RATE;
29 int format = DEFAULT_SAMPLE_FORMAT;
30 pa_sample_spec ss;
32 if( pulse_server != NULL ) {
33 pa_simple_free(pulse_server);
34 }
35 ss.rate = rate;
37 if( format & AUDIO_FMT_16BIT ) {
38 ss.format = PA_SAMPLE_S16NE;
39 } else {
40 ss.format = PA_SAMPLE_U8;
41 }
43 if( format & AUDIO_FMT_STEREO ) {
44 ss.channels = 2;
45 } else {
46 ss.channels = 1;
47 }
49 pulse_server = pa_simple_new(NULL, APP_NAME, PA_STREAM_PLAYBACK,
50 NULL, "Audio", &ss, NULL, NULL, NULL);
51 if( pulse_server == NULL ) {
52 ERROR( "Unable to open audio output (pulseaudio)" );
53 return FALSE;
54 }
55 return TRUE;
56 }
58 gboolean audio_pulse_process_buffer( audio_buffer_t buffer )
59 {
60 if( pulse_server != NULL ) {
61 int error;
62 pa_simple_write( pulse_server, buffer->data, buffer->length, &error );
63 return TRUE;
64 } else {
65 ERROR( "Pulseaudio not initialized" );
66 return FALSE;
67 }
68 }
70 gboolean audio_pulse_shutdown()
71 {
72 pa_simple_free(pulse_server);
73 pulse_server = NULL;
74 return TRUE;
75 }
77 struct audio_driver audio_pulse_driver = {
78 "pulse",
79 N_("PulseAudio sound server driver"),
80 DEFAULT_SAMPLE_RATE,
81 DEFAULT_SAMPLE_FORMAT,
82 audio_pulse_init,
83 NULL,
84 audio_pulse_process_buffer,
85 NULL,
86 audio_pulse_shutdown};
.