src/audio/arts/SDL_artsaudio.h
author Ryan C. Gordon
Fri, 06 Oct 2006 02:40:02 +0000
branchSDL-ryan-multiple-audio-device
changeset 3812 35d1367020a3
parent 3797 9dc81c6acaf5
permissions -rw-r--r--
Updated arts driver for 1.3 audio API.
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2006 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 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     Lesser General Public License for more details.
    14 
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with this library; if not, write to the Free Software
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 #include "SDL_config.h"
    23 
    24 #ifndef _SDL_artscaudio_h
    25 #define _SDL_artscaudio_h
    26 
    27 #include <artsc.h>
    28 
    29 #include "../SDL_sysaudio.h"
    30 
    31 /* Hidden "this" pointer for the audio functions */
    32 #define _THIS	SDL_AudioDevice *this
    33 
    34 struct SDL_PrivateAudioData
    35 {
    36     /* The stream descriptor for the audio device */
    37     arts_stream_t stream;
    38 
    39     /* The parent process id, to detect when application quits */
    40     pid_t parent;
    41 
    42     /* Raw mixing buffer */
    43     Uint8 *mixbuf;
    44     int mixlen;
    45 
    46     /* Support for audio timing using a timer, in addition to select() */
    47     float frame_ticks;
    48     float next_frame;
    49 };
    50 #define FUDGE_TICKS	10      /* The scheduler overhead ticks per frame */
    51 
    52 #endif /* _SDL_artscaudio_h */
    53 /* vi: set ts=4 sw=4 expandtab: */