Mercurial > sdl-ios-xcode

annotate src/audio/bsd/SDL_bsdaudio.h @ 5006:8e8876e4aec6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Include windows.h in SDL_atomic.h by default, but don't include the atomic API in SDL.h This allows all SDL code to take advantage of the atomic intrinsics on Windows, but doesn't cause applications just including SDL.h to pull in windows.h
author Sam Lantinga <slouken@libsdl.org>
date Sun, 16 Jan 2011 17:45:42 -0800
parents f7b03b6838cb
children b530ef003506
rev   line source
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
3 Copyright (C) 1997-2010 Sam Lantinga
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
6 modify it under the terms of the GNU Lesser General Public
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
13 Lesser General Public License for more details.
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
15 You should have received a copy of the GNU Lesser General Public
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
16 License along with this library; if not, write to the Free Software
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
18
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
19 Sam Lantinga
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
20 slouken@libsdl.org
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
21 */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
22 #include "SDL_config.h"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
23
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
24 #ifndef _SDL_bsdaudio_h
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
25 #define _SDL_bsdaudio_h
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
26
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
27 #include "../SDL_sysaudio.h"
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
28
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
29 #define _THIS SDL_AudioDevice *this
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
30
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
31 struct SDL_PrivateAudioData
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
32 {
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
33 /* The file descriptor for the audio device */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
34 int audio_fd;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
35
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
36 /* The parent process id, to detect when application quits */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
37 pid_t parent;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
38
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
39 /* Raw mixing buffer */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
40 Uint8 *mixbuf;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1567
diff changeset
41 int mixlen;
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
42
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
43 /* Support for audio timing using a timer, in addition to select() */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
44 float frame_ticks;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
45 float next_frame;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
46 };
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
47
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1567
diff changeset
48 #define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
49
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
50 #endif /* _SDL_bsdaudio_h */
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
51
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1567
diff changeset
52 /* vi: set ts=4 sw=4 expandtab: */