src/audio/sun/SDL_sunaudio.h
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     1 /*
       
     2     SDL - Simple DirectMedia Layer
       
     3     Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
       
     4 
       
     5     This library is free software; you can redistribute it and/or
       
     6     modify it under the terms of the GNU Library General Public
       
     7     License as published by the Free Software Foundation; either
       
     8     version 2 of the License, or (at your option) any later version.
       
     9 
       
    10     This library is distributed in the hope that it will be useful,
       
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    13     Library General Public License for more details.
       
    14 
       
    15     You should have received a copy of the GNU Library General Public
       
    16     License along with this library; if not, write to the Free
       
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
       
    18 
       
    19     Sam Lantinga
       
    20     slouken@devolution.com
       
    21 */
       
    22 
       
    23 #ifdef SAVE_RCSID
       
    24 static char rcsid =
       
    25  "@(#) $Id$";
       
    26 #endif
       
    27 
       
    28 #ifndef _SDL_lowaudio_h
       
    29 #define _SDL_lowaudio_h
       
    30 
       
    31 #include "SDL_sysaudio.h"
       
    32 
       
    33 /* Hidden "this" pointer for the video functions */
       
    34 #define _THIS	SDL_AudioDevice *this
       
    35 
       
    36 struct SDL_PrivateAudioData {
       
    37 	/* The file descriptor for the audio device */
       
    38 	int audio_fd;
       
    39 
       
    40 	Uint16 audio_fmt;        /* The app audio format */
       
    41 	Uint8 *mixbuf;           /* The app mixing buffer */
       
    42 	int ulaw_only;           /* Flag -- does hardware only output U-law? */
       
    43 	Uint8 *ulaw_buf;         /* The U-law mixing buffer */
       
    44 	Sint32 written;          /* The number of samples written */
       
    45 	int fragsize;            /* The audio fragment size in samples */
       
    46 	int frequency;           /* The audio frequency in KHz */
       
    47 };
       
    48 
       
    49 /* Old variable names */
       
    50 #define audio_fd		(this->hidden->audio_fd)
       
    51 #define audio_fmt		(this->hidden->audio_fmt)
       
    52 #define mixbuf			(this->hidden->mixbuf)
       
    53 #define ulaw_only		(this->hidden->ulaw_only)
       
    54 #define ulaw_buf		(this->hidden->ulaw_buf)
       
    55 #define written			(this->hidden->written)
       
    56 #define fragsize		(this->hidden->fragsize)
       
    57 #define frequency		(this->hidden->frequency)
       
    58 
       
    59 #endif /* _SDL_lowaudio_h */