19682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/*
29682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    SDL - Simple DirectMedia Layer
39682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    Copyright (C) 1997-2012 Sam Lantinga
49682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
59682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    This library is free software; you can redistribute it and/or
69682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    modify it under the terms of the GNU Lesser General Public
79682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    License as published by the Free Software Foundation; either
89682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    version 2.1 of the License, or (at your option) any later version.
99682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    This library is distributed in the hope that it will be useful,
119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    but WITHOUT ANY WARRANTY; without even the implied warranty of
129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    Lesser General Public License for more details.
149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    You should have received a copy of the GNU Lesser General Public
169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    License along with this library; if not, write to the Free Software
179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    Sam Lantinga
209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall    slouken@libsdl.org
219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/
229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_config.h"
239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifndef _SDL_lowaudio_h
259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define _SDL_lowaudio_h
269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "../SDL_sysaudio.h"
289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Hidden "this" pointer for the video functions */
309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define _THIS	SDL_AudioDevice *this
319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstruct SDL_PrivateAudioData {
339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall	/* The file descriptor for the audio device */
349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall	int audio_fd;
359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall	Uint16 audio_fmt;        /* The app audio format */
379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall	Uint8 *mixbuf;           /* The app mixing buffer */
389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall	int ulaw_only;           /* Flag -- does hardware only output U-law? */
399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall	Uint8 *ulaw_buf;         /* The U-law mixing buffer */
409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall	Sint32 written;          /* The number of samples written */
419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall	int fragsize;            /* The audio fragment size in samples */
429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall	int frequency;           /* The audio frequency in KHz */
439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall};
449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Old variable names */
469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define audio_fd		(this->hidden->audio_fd)
479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define audio_fmt		(this->hidden->audio_fmt)
489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define mixbuf			(this->hidden->mixbuf)
499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define ulaw_only		(this->hidden->ulaw_only)
509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define ulaw_buf		(this->hidden->ulaw_buf)
519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define written			(this->hidden->written)
529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define fragsize		(this->hidden->fragsize)
539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define frequency		(this->hidden->frequency)
549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall
559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* _SDL_lowaudio_h */
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