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annotate src/audio/nto/SDL_nto_audio.h @ 2697:c9121b04cffa gsoc2008_nds

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Some more work on the audio driver.
author Darren Alton <dalton@stevens.edu>
date Thu, 21 Aug 2008 12:38:21 +0000
parents 5f6550e5184f
children 99210400e8b9
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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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_NTO_AUDIO_H__
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25 #define __SDL_NTO_AUDIO_H__
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26
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27 #include <sys/asoundlib.h>
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28
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29 #include "../SDL_sysaudio.h"
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30
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31 /* Hidden "this" pointer for the audio 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 audio device handle */
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37 int cardno;
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38 int deviceno;
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39 snd_pcm_t *audio_handle;
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40
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41 /* The audio file descriptor */
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42 int audio_fd;
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43
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44 /* The parent process id, to detect when application quits */
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45 pid_t parent;
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46
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47 /* Raw mixing buffer */
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48 Uint8 *pcm_buf;
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49 Uint32 pcm_len;
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50 };
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51
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52 #endif /* __SDL_NTO_AUDIO_H__ */
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53 /* vi: set ts=4 sw=4 expandtab: */