src/audio/sun/SDL_sunaudio.h

   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_lowaudio_h
  25 #define _SDL_lowaudio_h
  26
  27 #include "../SDL_sysaudio.h"
  28
  29 /* Hidden "this" pointer for the video functions */
  30 #define _THIS   SDL_AudioDevice *this
  31
  32 struct SDL_PrivateAudioData {
  33         /* The file descriptor for the audio device */
  34         int audio_fd;
  35
  36         Uint16 audio_fmt;        /* The app audio format */
  37         Uint8 *mixbuf;           /* The app mixing buffer */
  38         int ulaw_only;           /* Flag -- does hardware only output U-law? */
  39         Uint8 *ulaw_buf;         /* The U-law mixing buffer */
  40         Sint32 written;          /* The number of samples written */
  41         int fragsize;            /* The audio fragment size in samples */
  42         int frequency;           /* The audio frequency in KHz */
  43 };
  44
  45 /* Old variable names */
  46 #define audio_fd                (this->hidden->audio_fd)
  47 #define audio_fmt               (this->hidden->audio_fmt)
  48 #define mixbuf                  (this->hidden->mixbuf)
  49 #define ulaw_only               (this->hidden->ulaw_only)
  50 #define ulaw_buf                (this->hidden->ulaw_buf)
  51 #define written                 (this->hidden->written)
  52 #define fragsize                (this->hidden->fragsize)
  53 #define frequency               (this->hidden->frequency)
  54
  55 #endif /* _SDL_lowaudio_h */