src/audio/arts/SDL_artsaudio.h
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FUNCTIONS
This source file includes following functions.
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: SDL_artsaudio.h,v 1.1.2.4 2001/02/10 07:20:03 hercules Exp $";
26 #endif
27
28 #ifndef _SDL_artscaudio_h
29 #define _SDL_artscaudio_h
30
31 #include <artsc.h>
32 #include "SDL_sysaudio.h"
33
34 /* Hidden "this" pointer for the video functions */
35 #define _THIS SDL_AudioDevice *this
36
37 struct SDL_PrivateAudioData {
38 /* The stream descriptor for the audio device */
39 arts_stream_t stream;
40
41 /* The parent process id, to detect when application quits */
42 pid_t parent;
43
44 /* Raw mixing buffer */
45 Uint8 *mixbuf;
46 int mixlen;
47
48 /* Support for audio timing using a timer, in addition to select() */
49 float frame_ticks;
50 float next_frame;
51 };
52 #define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
53
54 /* Old variable names */
55 #define stream (this->hidden->stream)
56 #define parent (this->hidden->parent)
57 #define mixbuf (this->hidden->mixbuf)
58 #define mixlen (this->hidden->mixlen)
59 #define frame_ticks (this->hidden->frame_ticks)
60 #define next_frame (this->hidden->next_frame)
61
62 #endif /* _SDL_artscaudio_h */
63