1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2004 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@libsdl.org
21*/
22#include "SDL_config.h"
23
24#ifndef __SDL_NTO_AUDIO_H__
25#define __SDL_NTO_AUDIO_H__
26
27#include <sys/asoundlib.h>
28
29#include "../SDL_sysaudio.h"
30
31/* Hidden "this" pointer for the audio functions */
32#define _THIS	SDL_AudioDevice *this
33
34struct SDL_PrivateAudioData
35{
36    /* The audio device handle */
37    int cardno;
38    int deviceno;
39    snd_pcm_t* audio_handle;
40
41    /* The audio file descriptor */
42    int audio_fd;
43
44    /* The parent process id, to detect when application quits */
45    pid_t parent;
46
47    /* Raw mixing buffer */
48    Uint8* pcm_buf;
49    Uint32 pcm_len;
50
51    /* QSA parameters */
52    snd_pcm_channel_status_t cstatus;
53    snd_pcm_channel_params_t cparams;
54    snd_pcm_channel_setup_t  csetup;
55};
56
57#define cardno          (this->hidden->cardno)
58#define deviceno        (this->hidden->deviceno)
59#define audio_handle    (this->hidden->audio_handle)
60#define audio_fd        (this->hidden->audio_fd)
61#define parent          (this->hidden->parent)
62#define pcm_buf         (this->hidden->pcm_buf)
63#define pcm_len         (this->hidden->pcm_len)
64#define cstatus         (this->hidden->cstatus)
65#define cparams         (this->hidden->cparams)
66#define csetup          (this->hidden->csetup)
67
68#endif /* __SDL_NTO_AUDIO_H__ */
69