Mercurial > sdl-ios-xcode

annotate src/audio/bsd/SDL_bsdaudio.h @ 3818:49eadd6e8962 SDL-ryan-multiple-audio-device

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Mangled ALSA dynamic loading...static loading will still work if you have the right libraries, but this is expected to break in general cases as we start dealing with different symbol versions, etc (but may work with, say, distro-specific packages, etc).
author Ryan C. Gordon <icculus@icculus.org>
date Fri, 06 Oct 2006 19:45:11 +0000
parents c121d94672cb
children 5f6550e5184f
rev   line source
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
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1 /*
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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2 SDL - Simple DirectMedia Layer
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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3 Copyright (C) 1997-2004 Sam Lantinga
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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4
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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5 This library is free software; you can redistribute it and/or
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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6 modify it under the terms of the GNU Library General Public
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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7 License as published by the Free Software Foundation; either
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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8 version 2 of the License, or (at your option) any later version.
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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9
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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10 This library is distributed in the hope that it will be useful,
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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13 Library General Public License for more details.
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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14
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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15 You should have received a copy of the GNU Library General Public
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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16 License along with this library; if not, write to the Free
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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18
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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19 Sam Lantinga
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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20 slouken@libsdl.org
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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21 */
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22 #include "SDL_config.h"
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23
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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24 #ifndef _SDL_openbsdaudio_h
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25 #define _SDL_openbsdaudio_h
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26
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27 #include "../SDL_sysaudio.h"
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28
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29 #define _THIS SDL_AudioDevice *this
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30
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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31 struct SDL_PrivateAudioData
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32 {
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33 /* The file descriptor for the audio device */
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34 int audio_fd;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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35
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36 /* The parent process id, to detect when application quits */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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37 pid_t parent;
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38
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39 /* Raw mixing buffer */
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40 Uint8 *mixbuf;
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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41 int mixlen;
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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42
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43 /* Support for audio timing using a timer, in addition to select() */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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44 float frame_ticks;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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45 float next_frame;
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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46 };
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47
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48 #define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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49
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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50 /* Old variable names */
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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51 #define audio_fd (this->hidden->audio_fd)
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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52 #define parent (this->hidden->parent)
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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53 #define mixbuf (this->hidden->mixbuf)
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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54 #define mixlen (this->hidden->mixlen)
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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55 #define frame_ticks (this->hidden->frame_ticks)
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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56 #define next_frame (this->hidden->next_frame)
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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57
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
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58 #endif /* _SDL_openbsdaudio_h */
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59 /* vi: set ts=4 sw=4 expandtab: */