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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 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 */
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