/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#ifndef _SDL_lowaudio_h
#define _SDL_lowaudio_h

#include "../SDL_sysaudio.h"

/* Hidden "this" pointer for the audio functions */
#define _THIS	SDL_AudioDevice *this

struct SDL_PrivateAudioData
{
    /* The file descriptor for the audio device */
    int audio_fd;

    SDL_AudioFormat audio_fmt;  /* The app audio format */
    Uint8 *mixbuf;              /* The app mixing buffer */
    int ulaw_only;              /* Flag -- does hardware only output U-law? */
    Uint8 *ulaw_buf;            /* The U-law mixing buffer */
    Sint32 written;             /* The number of samples written */
    int fragsize;               /* The audio fragment size in samples */
    int frequency;              /* The audio frequency in KHz */
};

/* Old variable names */
#define audio_fd		(this->hidden->audio_fd)
#define audio_fmt		(this->hidden->audio_fmt)
#define mixbuf			(this->hidden->mixbuf)
#define ulaw_only		(this->hidden->ulaw_only)
#define ulaw_buf		(this->hidden->ulaw_buf)
#define written			(this->hidden->written)
#define fragsize		(this->hidden->fragsize)
#define frequency		(this->hidden->frequency)

#endif /* _SDL_lowaudio_h */
/* vi: set ts=4 sw=4 expandtab: */