src/audio/alsa/SDL_alsa_audio.h
author Sam Lantinga <slouken@libsdl.org>
Thu, 16 Feb 2006 10:11:48 +0000
changeset 1361 19418e4422cb
parent 769 b8d311d90021
child 1402 d910939febfa
permissions -rw-r--r--
New configure-based build system. Still work in progress, but much improved
slouken@0
     1
/*
slouken@0
     2
    SDL - Simple DirectMedia Layer
slouken@769
     3
    Copyright (C) 1997-2004 Sam Lantinga
slouken@0
     4
slouken@0
     5
    This library is free software; you can redistribute it and/or
slouken@0
     6
    modify it under the terms of the GNU Library General Public
slouken@0
     7
    License as published by the Free Software Foundation; either
slouken@0
     8
    version 2 of the License, or (at your option) any later version.
slouken@0
     9
slouken@0
    10
    This library is distributed in the hope that it will be useful,
slouken@0
    11
    but WITHOUT ANY WARRANTY; without even the implied warranty of
slouken@0
    12
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
slouken@0
    13
    Library General Public License for more details.
slouken@0
    14
slouken@0
    15
    You should have received a copy of the GNU Library General Public
slouken@0
    16
    License along with this library; if not, write to the Free
slouken@0
    17
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
slouken@0
    18
slouken@0
    19
    Sam Lantinga
slouken@252
    20
    slouken@libsdl.org
slouken@0
    21
*/
slouken@0
    22
slouken@0
    23
#ifndef _ALSA_PCM_audio_h
slouken@0
    24
#define _ALSA_PCM_audio_h
slouken@0
    25
slouken@757
    26
#define ALSA_PCM_OLD_HW_PARAMS_API
slouken@757
    27
#define ALSA_PCM_OLD_SW_PARAMS_API
slouken@354
    28
#include <alsa/asoundlib.h>
slouken@0
    29
slouken@1361
    30
#include "../SDL_sysaudio.h"
slouken@1361
    31
slouken@0
    32
/* Hidden "this" pointer for the video functions */
slouken@0
    33
#define _THIS	SDL_AudioDevice *this
slouken@0
    34
slouken@0
    35
struct SDL_PrivateAudioData {
slouken@0
    36
	/* The audio device handle */
slouken@354
    37
	snd_pcm_t *pcm_handle;
slouken@0
    38
slouken@0
    39
	/* The parent process id, to detect when application quits */
slouken@0
    40
	pid_t parent;
slouken@0
    41
slouken@0
    42
	/* Raw mixing buffer */
slouken@354
    43
	Uint8 *mixbuf;
slouken@354
    44
	int    mixlen;
slouken@0
    45
};
slouken@0
    46
slouken@0
    47
/* Old variable names */
slouken@354
    48
#define pcm_handle		(this->hidden->pcm_handle)
slouken@0
    49
#define parent			(this->hidden->parent)
slouken@354
    50
#define mixbuf			(this->hidden->mixbuf)
slouken@354
    51
#define mixlen			(this->hidden->mixlen)
slouken@0
    52
slouken@0
    53
#endif /* _ALSA_PCM_audio_h */