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comparison src/audio/windib/SDL_dibaudio.h @ 0:74212992fb08

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Initial revision
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:45:43 +0000
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children e8157fcb3114
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1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@devolution.com
21 */
22
23 #ifdef SAVE_RCSID
24 static char rcsid =
25 "@(#) $Id$";
26 #endif
27
28 #ifndef _SDL_lowaudio_h
29 #define _SDL_lowaudio_h
30
31 #include "SDL_sysaudio.h"
32
33 /* Hidden "this" pointer for the video functions */
34 #define _THIS SDL_AudioDevice *this
35
36 #define NUM_BUFFERS 2 /* -- Don't lower this! */
37
38 struct SDL_PrivateAudioData {
39 HWAVEOUT sound;
40 HANDLE audio_sem;
41 Uint8 *mixbuf; /* The raw allocated mixing buffer */
42 WAVEHDR wavebuf[NUM_BUFFERS]; /* Wave audio fragments */
43 int next_buffer;
44 };
45
46 /* Old variable names */
47 #define sound (this->hidden->sound)
48 #define audio_sem (this->hidden->audio_sem)
49 #define mixbuf (this->hidden->mixbuf)
50 #define wavebuf (this->hidden->wavebuf)
51 #define next_buffer (this->hidden->next_buffer)
52
53 #endif /* _SDL_lowaudio_h */