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annotate src/audio/arts/SDL_artsaudio.h @ 1895:c121d94672cb

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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 10 Jul 2006 21:04:37 +0000
parents d910939febfa
children 5f6550e5184f 9dc81c6acaf5
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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_artscaudio_h
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25 #define _SDL_artscaudio_h
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26
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27 #include <artsc.h>
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28
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29 #include "../SDL_sysaudio.h"
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31 /* Hidden "this" pointer for the video functions */
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32 #define _THIS SDL_AudioDevice *this
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33
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34 struct SDL_PrivateAudioData
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35 {
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36 /* The stream descriptor for the audio device */
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37 arts_stream_t stream;
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38
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39 /* The parent process id, to detect when application quits */
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40 pid_t parent;
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41
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42 /* Raw mixing buffer */
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43 Uint8 *mixbuf;
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44 int mixlen;
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45
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46 /* Support for audio timing using a timer, in addition to select() */
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47 float frame_ticks;
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48 float next_frame;
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49 };
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50 #define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
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51
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52 /* Old variable names */
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53 #define stream (this->hidden->stream)
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54 #define parent (this->hidden->parent)
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55 #define mixbuf (this->hidden->mixbuf)
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56 #define mixlen (this->hidden->mixlen)
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57 #define frame_ticks (this->hidden->frame_ticks)
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58 #define next_frame (this->hidden->next_frame)
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59
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60 #endif /* _SDL_artscaudio_h */
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61 /* vi: set ts=4 sw=4 expandtab: */