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annotate src/audio/mme/SDL_mmeaudio.h @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents d910939febfa
children 5f6550e5184f 9dc81c6acaf5
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 /* Allow access to a raw mixing buffer */
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25
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26 #ifndef _SDL_lowaudio_h
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27 #define _SDL_lowaudio_h
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29 #include "../SDL_sysaudio.h"
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30
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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 #define NUM_BUFFERS 2
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34
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35 struct SharedMem
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36 {
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37 HWAVEOUT sound;
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38 WAVEHDR wHdr[NUM_BUFFERS];
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39 PCMWAVEFORMAT wFmt;
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40 };
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41
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42 struct SDL_PrivateAudioData
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43 {
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44 Uint8 *mixbuf; /* The raw allocated mixing buffer */
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45 struct SharedMem *shm;
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46 int next_buffer;
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47 };
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48
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49 #define shm (this->hidden->shm)
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50 #define mixbuf (this->hidden->mixbuf)
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51 #define next_buffer (this->hidden->next_buffer)
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52 /* Old variable names */
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53 #endif /* _SDL_lowaudio_h */
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54 /* vi: set ts=4 sw=4 expandtab: */