mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-10-29 05:40:25 -04:00
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
|
/*
|
||
|
|
* Mixer Interface - local header file
|
||
|
|
* Copyright (c) 2000 by Jaroslav Kysela <perex@suse.cz>
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* This library is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU Library General Public License as
|
||
|
|
* published by the Free Software Foundation; either version 2 of
|
||
|
|
* the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU Library General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Library General Public
|
||
|
|
* License along with this library; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <assert.h>
|
||
|
|
#include "asoundlib.h"
|
||
|
|
|
||
|
|
typedef struct mixer_simple mixer_simple_t;
|
||
|
|
|
||
|
|
typedef int (mixer_simple_get_t) (snd_mixer_t *handle, mixer_simple_t *simple, snd_mixer_simple_control_t *control);
|
||
|
|
typedef int (mixer_simple_put_t) (snd_mixer_t *handle, mixer_simple_t *simple, snd_mixer_simple_control_t *control);
|
||
|
|
typedef int (mixer_simple_event_t) (snd_mixer_t *handle, snd_ctl_event_type_t etype, snd_control_id_t *id);
|
||
|
|
|
||
|
|
struct mixer_simple {
|
||
|
|
int refs; /* number of references */
|
||
|
|
int change; /* simple control was changed */
|
||
|
|
snd_mixer_sid_t id;
|
||
|
|
mixer_simple_get_t *get;
|
||
|
|
mixer_simple_put_t *put;
|
||
|
|
mixer_simple_event_t *event;
|
||
|
|
mixer_simple_t *prev;
|
||
|
|
mixer_simple_t *next;
|
||
|
|
unsigned long private_value;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct snd_mixer {
|
||
|
|
snd_ctl_t *ctl_handle;
|
||
|
|
int simple_valid;
|
||
|
|
int simple_count;
|
||
|
|
int simple_changes; /* total number of changes */
|
||
|
|
mixer_simple_t *simple_first;
|
||
|
|
mixer_simple_t *simple_last;
|
||
|
|
snd_mixer_simple_callbacks_t *callbacks;
|
||
|
|
};
|
||
|
|
|
||
|
|
int snd_mixer_simple_build(snd_mixer_t *handle);
|
||
|
|
int snd_mixer_simple_destroy(snd_mixer_t *handle);
|