src/audio/openbsd/SDL_openbsdaudio.h
changeset 37 3ad7157c6cfa
child 252 e8157fcb3114
equal deleted inserted replaced
36:13ee9f4834ea 37:3ad7157c6cfa
       
     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 #ifndef _SDL_openbsdaudio_h
       
    24 #define _SDL_openbsdaudio_h
       
    25 
       
    26 #include "SDL_sysaudio.h"
       
    27 
       
    28 #define _THIS	SDL_AudioDevice *this
       
    29 
       
    30 struct SDL_PrivateAudioData
       
    31 {
       
    32     /* The file descriptor for the audio device */
       
    33     int audio_fd;
       
    34 
       
    35     /* The parent process id, to detect when application quits */
       
    36     pid_t parent;
       
    37 
       
    38     /* Raw mixing buffer */
       
    39     Uint8 *mixbuf;
       
    40     int    mixlen;
       
    41 
       
    42     /* Support for audio timing using a timer, in addition to select() */
       
    43     float frame_ticks;
       
    44     float next_frame;
       
    45 };
       
    46 
       
    47 #define FUDGE_TICKS	10	/* The scheduler overhead ticks per frame */
       
    48 
       
    49 /* Old variable names */
       
    50 #define audio_fd		(this->hidden->audio_fd)
       
    51 #define parent			(this->hidden->parent)
       
    52 #define mixbuf			(this->hidden->mixbuf)
       
    53 #define mixlen			(this->hidden->mixlen)
       
    54 #define frame_ticks		(this->hidden->frame_ticks)
       
    55 #define next_frame		(this->hidden->next_frame)
       
    56 
       
    57 #endif /* _SDL_openbsdaudio_h */