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| author | Max Kellermann <max@duempel.org> | 2009-02-16 01:39:52 +0100 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2009-02-16 01:39:52 +0100 |
| commit | 83ce0e5325b9bcf9b339ea9c69b658d45b4125cf (patch) | |
| tree | fa7438905b1fa2219832ecfc4c1d4e9ecc40c55e /src/mixer_api.h | |
| parent | 37bc31d161d486d0499cf64123b7561f57dd0c53 (diff) | |
| download | mpd-83ce0e5325b9bcf9b339ea9c69b658d45b4125cf.tar.gz mpd-83ce0e5325b9bcf9b339ea9c69b658d45b4125cf.tar.xz mpd-83ce0e5325b9bcf9b339ea9c69b658d45b4125cf.zip | |
mixer_api: replaced method "control()" with "{get,set}_volume()"
The method control() is too complicated, and overengineered. Replace
it with two trivial functions: get_volume() and set_volume().
Diffstat (limited to 'src/mixer_api.h')
| -rw-r--r-- | src/mixer_api.h | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/src/mixer_api.h b/src/mixer_api.h index b79d02a1c..8dbbbe820 100644 --- a/src/mixer_api.h +++ b/src/mixer_api.h @@ -45,14 +45,25 @@ struct mixer_plugin { bool (*open)(struct mixer *data); /** - * Control mixer device. - */ - bool (*control)(struct mixer *data, int cmd, void *arg); - - /** * Close mixer device */ void (*close)(struct mixer *data); + + /** + * Reads the current volume. + * + * @return the current volume (0..100 including) or -1 on + * error + */ + int (*get_volume)(struct mixer *mixer); + + /** + * Sets the volume. + * + * @param volume the new volume (0..100 including) + * @return true on success + */ + bool (*set_volume)(struct mixer *mixer, unsigned volume); }; struct mixer { @@ -72,7 +83,18 @@ void mixer_free(struct mixer *mixer); bool mixer_open(struct mixer *mixer); -bool mixer_control(struct mixer *mixer, int cmd, void *arg); void mixer_close(struct mixer *mixer); +static inline int +mixer_get_volume(struct mixer *mixer) +{ + return mixer->plugin->get_volume(mixer); +} + +static inline bool +mixer_set_volume(struct mixer *mixer, unsigned volume) +{ + return mixer->plugin->set_volume(mixer, volume); +} + #endif |