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      1 /*
      2     SDL - Simple DirectMedia Layer
      3     Copyright (C) 1997-2012 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 (at) libsdl.org
     21 */
     22 #include "SDL_config.h"
     23 
     24 #ifndef _ALSA_PCM_audio_h
     25 #define _ALSA_PCM_audio_h
     26 
     27 #include <alsa/asoundlib.h>
     28 
     29 #include "../SDL_sysaudio.h"
     30 
     31 /* Hidden "this" pointer for the video functions */
     32 #define _THIS	SDL_AudioDevice *this
     33 
     34 struct SDL_PrivateAudioData {
     35 	/* The audio device handle */
     36 	snd_pcm_t *pcm_handle;
     37 
     38 	/* Raw mixing buffer */
     39 	Uint8 *mixbuf;
     40 	int    mixlen;
     41 };
     42 
     43 /* Old variable names */
     44 #define pcm_handle		(this->hidden->pcm_handle)
     45 #define mixbuf			(this->hidden->mixbuf)
     46 #define mixlen			(this->hidden->mixlen)
     47 
     48 #endif /* _ALSA_PCM_audio_h */
     49