/*
    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"

/* Functions and variables exported from SDL_audio.c for SDL_sysaudio.c */

/* Functions to get a list of "close" audio formats */
extern SDL_AudioFormat SDL_FirstAudioFormat(SDL_AudioFormat format);
extern SDL_AudioFormat SDL_NextAudioFormat(void);

/* Function to calculate the size and silence for a SDL_AudioSpec */
extern void SDL_CalculateAudioSpec(SDL_AudioSpec * spec);

/* The actual mixing thread function */
extern int SDLCALL SDL_RunAudio(void *audiop);

/* this is used internally to access some autogenerated code. */
typedef struct
{
    SDL_AudioFormat src_fmt;
    SDL_AudioFormat dst_fmt;
    SDL_AudioFilter filter;
} SDL_AudioTypeFilters;
extern const SDL_AudioTypeFilters sdl_audio_type_filters[];

/* Streamer */
typedef struct
{
	Uint8 *buffer;
	int max_len;				// the maximum length in bytes
	int read_pos, write_pos;	// the position of the write and read heads in bytes
} SDL_AudioStreamer;

/* vi: set ts=4 sw=4 expandtab: */