annotate src/audio/pulse/SDL_pulseaudio.h @ 4347:38f22ed3a433 SDL-1.2

Option to fix bug #851 For some people setting the period size works better (and is what SDL 1.2.13 did), but for most people it's the same or worse. You can use an environment variable to pick which one you want.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 17 Oct 2009 06:55:17 +0000
parents 5b99971a27b4
children fe15c4e8efe6
rev   line source
3939
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1 /*
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
4159
a1b03ba2fcd0 Updated copyright date
Sam Lantinga <slouken@libsdl.org>
parents: 3939
diff changeset
3 Copyright (C) 1997-2009 Sam Lantinga
3939
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
4
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
6 modify it under the terms of the GNU Lesser General Public
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
9
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
13 Lesser General Public License for more details.
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
14
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
15 You should have received a copy of the GNU Lesser General Public
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
16 License along with this library; if not, write to the Free Software
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
18
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
19 Stéphan Kochen
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
20 stephan@kochen.nl
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
21
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
22 Based on parts of the ALSA and ESounD output drivers.
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
23 */
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
24 #include "SDL_config.h"
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
25
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
26 #ifndef _SDL_pulseaudio_h
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
27 #define _SDL_pulseaudio_h
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
28
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
29 #include "../SDL_sysaudio.h"
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
30
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
31 /* Hidden "this" pointer for the video functions */
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
32 #define _THIS SDL_AudioDevice *this
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
33
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
34 struct SDL_PrivateAudioData {
4216
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
35 pa_mainloop *mainloop;
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
36 pa_mainloop_api *mainloop_api;
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
37 pa_context *context;
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
38 pa_stream *stream;
3939
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
39
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
40 /* Raw mixing buffer */
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
41 Uint8 *mixbuf;
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
42 int mixlen;
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
43 };
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
44
4216
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
45 #if (PA_API_VERSION < 12)
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
46 /** Return non-zero if the passed state is one of the connected states */
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
47 static inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x) {
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
48 return
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
49 x == PA_CONTEXT_CONNECTING ||
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
50 x == PA_CONTEXT_AUTHORIZING ||
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
51 x == PA_CONTEXT_SETTING_NAME ||
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
52 x == PA_CONTEXT_READY;
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
53 }
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
54 /** Return non-zero if the passed state is one of the connected states */
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
55 static inline int PA_STREAM_IS_GOOD(pa_stream_state_t x) {
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
56 return
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
57 x == PA_STREAM_CREATING ||
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
58 x == PA_STREAM_READY;
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
59 }
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
60 #endif /* pulseaudio <= 0.9.10 */
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
61
3939
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
62 /* Old variable names */
4216
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
63 #define mainloop (this->hidden->mainloop)
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
64 #define mainloop_api (this->hidden->mainloop_api)
5b99971a27b4 Fixed bug #698
Sam Lantinga <slouken@libsdl.org>
parents: 4159
diff changeset
65 #define context (this->hidden->context)
3939
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
66 #define stream (this->hidden->stream)
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
67 #define mixbuf (this->hidden->mixbuf)
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
68 #define mixlen (this->hidden->mixlen)
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
69
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
70 #endif /* _SDL_pulseaudio_h */
42e83d81224b Committed PulseAudio driver. Thanks, Stephan!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
71