/*

    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 video functions */

#define _THIS	SDL_AudioDevice *this

struct SDL_PrivateAudioData {

	/* The file descriptor for the audio device */

	int audio_fd;

	Uint16 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 */