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annotate src/audio/pulseaudio/SDL_pulseaudio.c @ 2271:60b4c52a7906

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Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk. Fixes Bugzilla #439.
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 20 Aug 2007 01:02:37 +0000
parents
children 25a87553a59d
rev   line source
2271
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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6 modify it under the terms of the GNU Lesser General Public
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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7 License as published by the Free Software Foundation; either
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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8 version 2.1 of the License, or (at your option) any later version.
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9
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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10 This library is distributed in the hope that it will be useful,
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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13 Lesser General Public License for more details.
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14
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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15 You should have received a copy of the GNU Lesser General Public
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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23 /*
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24 The PulseAudio target for SDL 1.3 is based on the 1.3 arts target, with
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25 the appropriate parts replaced with the 1.2 PulseAudio target code. This
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26 was the cleanest way to move it to 1.3. The 1.2 target was written by
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27 Stéphan Kochen: stephan .a.t. kochen.nl
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28 */
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29
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30 #include "SDL_config.h"
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31
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32 /* Allow access to a raw mixing buffer */
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33
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34 #ifdef HAVE_SIGNAL_H
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35 #include <signal.h>
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36 #endif
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37 #include <unistd.h>
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38 #include <sys/types.h>
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39 #include <errno.h>
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40 #include <pulse/simple.h>
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41
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42 #include "SDL_timer.h"
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43 #include "SDL_audio.h"
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44 #include "../SDL_audiomem.h"
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45 #include "../SDL_audio_c.h"
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46 #include "SDL_pulseaudio.h"
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47
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48 #ifdef SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC
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49 #include "SDL_name.h"
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50 #include "SDL_loadso.h"
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51 #else
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52 #define SDL_NAME(X) X
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53 #endif
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54
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55 /* The tag name used by pulse audio */
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56 #define PULSEAUDIO_DRIVER_NAME "pulseaudio"
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57
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58 #ifdef SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC
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59
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60 static const char *pulse_library = SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC;
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61 static void *pulse_handle = NULL;
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62
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63 /* !!! FIXME: I hate this SDL_NAME clutter...it makes everything so messy! */
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64 static pa_simple* (*SDL_NAME(pa_simple_new))(
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65 const char *server,
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66 const char *name,
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67 pa_stream_direction_t dir,
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68 const char *dev,
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69 const char *stream_name,
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70 const pa_sample_spec *ss,
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71 const pa_channel_map *map,
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72 const pa_buffer_attr *attr,
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73 int *error
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74 );
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75 static void (*SDL_NAME(pa_simple_free))(pa_simple *s);
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76 static int (*SDL_NAME(pa_simple_drain))(pa_simple *s, int *error);
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77 static int (*SDL_NAME(pa_simple_write))(
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78 pa_simple *s,
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79 const void *data,
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80 size_t length,
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81 int *error
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82 );
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83 static pa_channel_map* (*SDL_NAME(pa_channel_map_init_auto))(
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84 pa_channel_map *m,
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85 unsigned channels,
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86 pa_channel_map_def_t def
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87 );
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88
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89
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90 #define SDL_PULSEAUDIO_SYM(x) { #x, (void **) (char *) &SDL_NAME(x) }
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91 static struct {
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92 const char *name;
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93 void **func;
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94 } pulse_functions[] = {
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95 /* *INDENT-OFF* */
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96 SDL_PULSEAUDIO_SYM(pa_simple_new),
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97 SDL_PULSEAUDIO_SYM(pa_simple_free),
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98 SDL_PULSEAUDIO_SYM(pa_simple_drain),
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99 SDL_PULSEAUDIO_SYM(pa_simple_write),
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100 SDL_PULSEAUDIO_SYM(pa_channel_map_init_auto),
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101 /* *INDENT-ON* */
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102 };
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103 #undef SDL_PULSEAUDIO_SYM
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104
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105 static void
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106 UnloadPulseLibrary()
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107 {
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108 if (pulse_handle != NULL) {
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109 SDL_UnloadObject(pulse_handle);
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110 pulse_handle = NULL;
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111 }
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112 }
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113
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114 static int
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115 LoadPulseLibrary(void)
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116 {
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117 int i, retval = -1;
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118
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diff changeset
119 if (pulse_handle == NULL) {
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diff changeset
120 pulse_handle = SDL_LoadObject(pulse_library);
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parents:
diff changeset
121 if (pulse_handle != NULL) {
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parents:
diff changeset
122 retval = 0;
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parents:
diff changeset
123 for (i = 0; i < SDL_arraysize(pulse_functions); ++i) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
124 *pulse_functions[i].func =
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
125 SDL_LoadFunction(pulse_handle, pulse_functions[i].name);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
126 if (!*pulse_functions[i].func) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
127 retval = -1;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
128 UnloadPulseLibrary();
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
129 break;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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130 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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131 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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132 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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133 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
134
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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135 return retval;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
136 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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137
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
138 #else
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
139
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
140 static void
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
141 UnloadPulseLibrary()
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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142 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
143 return;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
144 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
145
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
146 static int
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
147 LoadPulseLibrary(void)
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
148 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
149 return 0;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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150 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
151
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
152 #endif /* SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC */
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153
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diff changeset
154 /* This function waits until it is possible to write a full sound buffer */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
155 static void
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
156 PULSEAUDIO_WaitDevice(_THIS)
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
157 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
158 Sint32 ticks;
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159
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
160 /* Check to see if the thread-parent process is still alive */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
161 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
162 static int cnt = 0;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
163 /* Note that this only works with thread implementations
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
164 that use a different process id for each thread.
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
165 */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
166 /* Check every 10 loops */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
167 if (this->hidden->parent && (((++cnt) % 10) == 0)) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
168 if (kill(this->hidden->parent, 0) < 0) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
169 this->enabled = 0;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
170 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
171 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
172 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
173
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
174 /* Use timer for general audio synchronization */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
175 ticks =
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
176 ((Sint32) (this->hidden->next_frame - SDL_GetTicks())) - FUDGE_TICKS;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
177 if (ticks > 0) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
178 SDL_Delay(ticks);
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diff changeset
179 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
180 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
181
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
182 static void
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
183 PULSEAUDIO_PlayDevice(_THIS)
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diff changeset
184 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
185 /* Write the audio data */
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diff changeset
186 if ( SDL_NAME(pa_simple_write)(this->hidden->stream, this->hidden->mixbuf,
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
187 this->hidden->mixlen, NULL) != 0 )
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
188 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
189 this->enabled = 0;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
190 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
191 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
192
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
193 static void
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
194 PULSEAUDIO_WaitDone(_THIS)
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
195 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
196 SDL_NAME(pa_simple_drain)(this->hidden->stream, NULL);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
197 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
198
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
199
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
200 static Uint8 *
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
201 PULSEAUDIO_GetDeviceBuf(_THIS)
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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diff changeset
202 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
203 return (this->hidden->mixbuf);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
204 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
205
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
206
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
207 static void
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
208 PULSEAUDIO_CloseDevice(_THIS)
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
209 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
210 if (this->hidden != NULL) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
211 if (this->hidden->mixbuf != NULL) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
212 SDL_FreeAudioMem(this->hidden->mixbuf);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
213 this->hidden->mixbuf = NULL;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
214 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
215 if (this->hidden->stream) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
216 SDL_NAME(pa_simple_drain)(this->hidden->stream, NULL);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
217 SDL_NAME(pa_simple_free)(this->hidden->stream);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
218 this->hidden->stream = NULL;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
219 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
220 SDL_free(this->hidden);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
221 this->hidden = NULL;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
222 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
223 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
224
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
225
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
226 /* !!! FIXME: this could probably be expanded. */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
227 /* Try to get the name of the program */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
228 static char *get_progname(void)
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
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parents:
diff changeset
229 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
230 char *progname = NULL;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
231 #ifdef __LINUX__
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
232 FILE *fp;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
233 static char temp[BUFSIZ];
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
234
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
235 SDL_snprintf(temp, SDL_arraysize(temp), "/proc/%d/cmdline", getpid());
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
236 fp = fopen(temp, "r");
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
237 if ( fp != NULL ) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
238 if ( fgets(temp, sizeof(temp)-1, fp) ) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
239 progname = SDL_strrchr(temp, '/');
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
240 if ( progname == NULL ) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
241 progname = temp;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
242 } else {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
243 progname = progname+1;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
244 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
245 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
246 fclose(fp);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
247 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
248 #endif
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
249 return(progname);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
250 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
251
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
252
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
253 static int
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
254 PULSEAUDIO_OpenDevice(_THIS, const char *devname, int iscapture)
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
255 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
256 Uint16 test_format;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
257 pa_sample_spec paspec;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
258 pa_buffer_attr paattr;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
259 pa_channel_map pacmap;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
260
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
261 /* Initialize all variables that we clean on shutdown */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
262 this->hidden = (struct SDL_PrivateAudioData *)
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
263 SDL_malloc((sizeof *this->hidden));
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
264 if (this->hidden == NULL) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
265 SDL_OutOfMemory();
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
266 return 0;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
267 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
268 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
269
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
270 paspec.format = PA_SAMPLE_INVALID;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
271
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
272 /* Try for a closest match on audio format */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
273 for (test_format = SDL_FirstAudioFormat(this->spec.format);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
274 (paspec.format == PA_SAMPLE_INVALID) && test_format;) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
275 #ifdef DEBUG_AUDIO
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
276 fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
277 #endif
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
278 switch ( test_format ) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
279 case AUDIO_U8:
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
280 paspec.format = PA_SAMPLE_U8;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
281 break;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
282 case AUDIO_S16LSB:
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
283 paspec.format = PA_SAMPLE_S16LE;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
284 break;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
285 case AUDIO_S16MSB:
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
286 paspec.format = PA_SAMPLE_S16BE;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
287 break;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
288 default:
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
289 paspec.format = PA_SAMPLE_INVALID;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
290 break;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
291 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
292 if (paspec.format == PA_SAMPLE_INVALID) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
293 test_format = SDL_NextAudioFormat();
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
294 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
295 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
296 if (paspec.format == PA_SAMPLE_INVALID) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
297 PULSEAUDIO_CloseDevice(this);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
298 SDL_SetError("Couldn't find any hardware audio formats");
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
299 return 0;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
300 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
301 this->spec.format = test_format;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
302
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
303 /* Calculate the final parameters for this audio specification */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
304 SDL_CalculateAudioSpec(&this->spec);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
305
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
306 /* Allocate mixing buffer */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
307 this->hidden->mixlen = this->spec.size;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
308 this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
309 if (this->hidden->mixbuf == NULL) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
310 PULSEAUDIO_CloseDevice(this);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
311 SDL_OutOfMemory();
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
312 return 0;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
313 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
314 SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
315
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
316 paspec.channels = this->spec.channels;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
317 paspec.rate = this->spec.freq;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
318
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
319 /* Reduced prebuffering compared to the defaults. */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
320 paattr.tlength = this->hidden->mixlen;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
321 paattr.minreq = this->hidden->mixlen;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
322 paattr.fragsize = this->hidden->mixlen;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
323 paattr.prebuf = this->hidden->mixlen;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
324 paattr.maxlength = this->hidden->mixlen * 4;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
325
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
326 /* The SDL ALSA output hints us that we use Windows' channel mapping */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
327 /* http://bugzilla.libsdl.org/show_bug.cgi?id=110 */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
328 SDL_NAME(pa_channel_map_init_auto)(
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
329 &pacmap, this->spec.channels, PA_CHANNEL_MAP_WAVEEX);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
330
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
331 /* Connect to the PulseAudio server */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
332 this->hidden->stream = SDL_NAME(pa_simple_new)(
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
333 SDL_getenv("PASERVER"), /* server */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
334 get_progname(), /* application name */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
335 PA_STREAM_PLAYBACK, /* playback mode */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
336 SDL_getenv("PADEVICE"), /* device on the server */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
337 "Simple DirectMedia Layer", /* stream description */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
338 &paspec, /* sample format spec */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
339 &pacmap, /* channel map */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
340 &paattr, /* buffering attributes */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
341 NULL /* error code */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
342 );
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
343 if ( this->hidden->stream == NULL ) {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
344 PULSEAUDIO_CloseDevice(this);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
345 SDL_SetError("Could not connect to PulseAudio");
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
346 return(-1);
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
347 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
348
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
349 /* Get the parent process id (we're the parent of the audio thread) */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
350 this->hidden->parent = getpid();
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
351
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
352 /* We're ready to rock and roll. :-) */
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
353 return 1;
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
354 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
355
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
356
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
357 static void
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
358 PULSEAUDIO_Deinitialize(void)
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
359 {
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
360 UnloadPulseLibrary();
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
361 }
60b4c52a7906 Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
362
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363
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364 static int
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365 PULSEAUDIO_Init(SDL_AudioDriverImpl * impl)
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366 {
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367 if (LoadPulseLibrary() < 0) {
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368 return 0;
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369 }
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370
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371 /* Set the function pointers */
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372 impl->OpenDevice = PULSEAUDIO_OpenDevice;
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373 impl->PlayDevice = PULSEAUDIO_PlayDevice;
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374 impl->WaitDevice = PULSEAUDIO_WaitDevice;
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375 impl->GetDeviceBuf = PULSEAUDIO_GetDeviceBuf;
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376 impl->CloseDevice = PULSEAUDIO_CloseDevice;
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377 impl->WaitDone = PULSEAUDIO_WaitDone;
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378 impl->Deinitialize = PULSEAUDIO_Deinitialize;
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379 impl->OnlyHasDefaultOutputDevice = 1;
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380
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381 return 1;
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382 }
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383
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384
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385 AudioBootStrap PULSEAUDIO_bootstrap = {
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386 PULSEAUDIO_DRIVER_NAME, "PulseAudio", PULSEAUDIO_Init, 0
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387 };
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388
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389 /* vi: set ts=4 sw=4 expandtab: */