src/audio/paudio/SDL_paudio.h
author Sam Lantinga <slouken@libsdl.org>
Fri, 15 Feb 2013 08:47:44 -0800
changeset 6885 700f1b25f77f
parent 6138 4c64952a58fb
child 7191 75360622e65f
permissions -rw-r--r--
Happy New Year!
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 #include "SDL_config.h"
    22 
    23 #ifndef _SDL_paudaudio_h
    24 #define _SDL_paudaudio_h
    25 
    26 #include "../SDL_sysaudio.h"
    27 
    28 /* Hidden "this" pointer for the audio functions */
    29 #define _THIS	SDL_AudioDevice *this
    30 
    31 struct SDL_PrivateAudioData
    32 {
    33     /* The file descriptor for the audio device */
    34     int audio_fd;
    35 
    36     /* Raw mixing buffer */
    37     Uint8 *mixbuf;
    38     int mixlen;
    39 
    40     /* Support for audio timing using a timer, in addition to select() */
    41     float frame_ticks;
    42     float next_frame;
    43 };
    44 #define FUDGE_TICKS	10      /* The scheduler overhead ticks per frame */
    45 
    46 #endif /* _SDL_paudaudio_h */
    47 /* vi: set ts=4 sw=4 expandtab: */