Mercurial > sdl-ios-xcode

annotate src/audio/paudio/SDL_paudio.h @ 3846:66fb40445587 SDL-ryan-multiple-audio-device

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Removed distinction between "available" and "init" in audio backends, since both had to be checked for success as a pair at the higher level and several of the Available methods were just always-succeed placeholders anyhow. Now the availability check is done in the init code, and the higher level tries all possible drivers until one manages to initialize successfully.
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 17 Oct 2006 09:09:21 +0000
parents ca74a71063ac
children
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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
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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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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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifndef _SDL_paudaudio_h
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25 #define _SDL_paudaudio_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 /* Hidden "this" pointer for the audio functions */
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30 #define _THIS SDL_AudioDevice *this
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31
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32 struct SDL_PrivateAudioData
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33 {
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34 /* The file descriptor for the audio device */
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35 int audio_fd;
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36
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37 /* Raw mixing buffer */
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38 Uint8 *mixbuf;
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39 int mixlen;
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40
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41 /* Support for audio timing using a timer, in addition to select() */
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42 float frame_ticks;
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43 float next_frame;
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44 };
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45 #define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
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46
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47 #endif /* _SDL_paudaudio_h */
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48 /* vi: set ts=4 sw=4 expandtab: */