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Added bag operations for the high-level control interface.

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Added event layer for simple mixer controls (not fully finished).
This commit is contained in:
Jaroslav Kysela 2000-08-16 13:35:36 +00:00
parent 5bb1fcb00a
commit 7376ad380e
7 changed files with 304 additions and 85 deletions
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19
src/mixer/mixer_local.h
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@ -21,12 +21,14 @@
#include <assert.h>
#include "asoundlib.h"
#include "list.h"
typedef struct mixer_simple mixer_simple_t;
typedef struct mixer_simple_hcontrol_private mixer_simple_hcontrol_private_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);
typedef int (mixer_simple_event_add_t) (snd_mixer_t *handle, snd_hcontrol_t *hcontrol);
#define MIXER_PRESENT_GLOBAL_SWITCH (1<<0)
#define MIXER_PRESENT_GLOBAL_VOLUME (1<<1)
@ -57,19 +59,22 @@ struct mixer_simple {
snd_mixer_sid_t sid;
mixer_simple_get_t *get;
mixer_simple_put_t *put;
mixer_simple_event_t *event;
mixer_simple_t *prev;
mixer_simple_t *next;
mixer_simple_event_add_t *event_add;
struct list_head list;
void *hcontrols; /* bag of associated hcontrols */
unsigned long private_value;
};
struct mixer_simple_hcontrol_private {
void *simples; /* list of associated hcontrols */
};
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;
int simple_count;
struct list_head simples; /* list of all simple controls */
snd_mixer_simple_callbacks_t *callbacks;
};