- void layer_visibility_changed(struct layer *l, uint32_t layer_id, int32_t visibility);
- void layer_opacity_changed(struct layer *l, uint32_t layer_id, float opacity);
- void layer_source_rectangle_changed(struct layer *l, uint32_t layer_id, int32_t x, int32_t y,
+ void layer_visibility_changed(uint32_t layer_id, int32_t visibility);
+ void layer_opacity_changed(uint32_t layer_id, float opacity);
+ void layer_source_rectangle_changed(uint32_t layer_id, int32_t x, int32_t y,