src/audio/alsa/SDL_alsa_audio.h
author Sam Lantinga <slouken@libsdl.org>
Tue, 21 Feb 2006 08:46:50 +0000
changeset 1402 d910939febfa
parent 1361 19418e4422cb
child 1662 782fd950bd46
child 4159 a1b03ba2fcd0
permissions -rw-r--r--
Use consistent identifiers for the various platforms we support.
Make sure every source file includes SDL_config.h, so the proper system
headers are chosen.
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2004 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@libsdl.org
    21 */
    22 #include "SDL_config.h"
    23 
    24 #ifndef _ALSA_PCM_audio_h
    25 #define _ALSA_PCM_audio_h
    26 
    27 #define ALSA_PCM_OLD_HW_PARAMS_API
    28 #define ALSA_PCM_OLD_SW_PARAMS_API
    29 #include <alsa/asoundlib.h>
    30 
    31 #include "../SDL_sysaudio.h"
    32 
    33 /* Hidden "this" pointer for the video functions */
    34 #define _THIS	SDL_AudioDevice *this
    35 
    36 struct SDL_PrivateAudioData {
    37 	/* The audio device handle */
    38 	snd_pcm_t *pcm_handle;
    39 
    40 	/* The parent process id, to detect when application quits */
    41 	pid_t parent;
    42 
    43 	/* Raw mixing buffer */
    44 	Uint8 *mixbuf;
    45 	int    mixlen;
    46 };
    47 
    48 /* Old variable names */
    49 #define pcm_handle		(this->hidden->pcm_handle)
    50 #define parent			(this->hidden->parent)
    51 #define mixbuf			(this->hidden->mixbuf)
    52 #define mixlen			(this->hidden->mixlen)
    53 
    54 #endif /* _ALSA_PCM_audio_h */