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alsa: bundle param changes

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Only poll events and set_param can cause a param changed events.
Keep track of all the changes in the param user data and at the
end of the poll/set_param emit one notification for all changed
params.
This commit is contained in:
Wim Taymans 2021-01-25 17:06:54 +01:00
parent c95bd1c3d4
commit fbb5dad6d1
1 changed files with 25 additions and 17 deletions
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42
spa/plugins/alsa/alsa-acp-device.c
View file

@ -96,6 +96,8 @@ struct impl {
struct spa_source sources[MAX_POLL];
};
static int emit_info(struct impl *this, bool full);
static void handle_acp_poll(struct spa_source *source)
{
struct impl *this = source->data;
@ -106,6 +108,7 @@ static void handle_acp_poll(struct spa_source *source)
acp_card_handle_events(this->card);
for (i = 0; i < this->n_pfds; i++)
this->sources[i].rmask = 0;
emit_info(this, false);
}
static void remove_sources(struct impl *this)
@ -206,7 +209,7 @@ static int emit_info(struct impl *this, bool full)
{
int err = 0;
struct spa_dict_item *items;
uint32_t n_items;
uint32_t i, n_items;
const struct acp_dict_item *it;
struct acp_card *card = this->card;
char path[128];
@ -228,6 +231,15 @@ static int emit_info(struct impl *this, bool full)
ADD_ITEM(it->key, it->value);
this->info.props = &SPA_DICT_INIT(items, n_items);
#undef ADD_ITEM
if (this->info.change_mask & SPA_DEVICE_CHANGE_MASK_PARAMS) {
for (i = 0; i < SPA_N_ELEMENTS(this->params); i++) {
if (this->params[i].user > 0) {
this->params[i].flags ^= SPA_PARAM_INFO_SERIAL;
this->params[i].user = 0;
}
}
}
spa_device_emit_info(&this->hooks, &this->info);
this->info.change_mask = 0;
}
@ -588,6 +600,7 @@ static int impl_set_param(void *object,
}
res = acp_card_set_profile(this->card, id);
emit_info(this, false);
break;
}
case SPA_PARAM_Route:
@ -612,6 +625,7 @@ static int impl_set_param(void *object,
res = acp_device_set_port(dev, id);
if (props)
apply_device_props(this, dev, props);
emit_info(this, false);
break;
}
default:
@ -667,10 +681,9 @@ static void card_profile_changed(void *data, uint32_t old_index, uint32_t new_in
setup_sources(this);
this->info.change_mask |= SPA_DEVICE_CHANGE_MASK_PARAMS;
this->params[IDX_Profile].flags ^= SPA_PARAM_INFO_SERIAL;
this->params[IDX_Route].flags ^= SPA_PARAM_INFO_SERIAL;
this->params[IDX_EnumRoute].flags ^= SPA_PARAM_INFO_SERIAL;
emit_info(this, false);
this->params[IDX_Profile].user++;
this->params[IDX_Route].user++;
this->params[IDX_EnumRoute].user++;
}
static void card_profile_available(void *data, uint32_t index,
@ -684,9 +697,8 @@ static void card_profile_available(void *data, uint32_t index,
acp_available_str(old), acp_available_str(available));
this->info.change_mask |= SPA_DEVICE_CHANGE_MASK_PARAMS;
this->params[IDX_EnumProfile].flags ^= SPA_PARAM_INFO_SERIAL;
this->params[IDX_Profile].flags ^= SPA_PARAM_INFO_SERIAL;
emit_info(this, false);
this->params[IDX_EnumProfile].user++;
this->params[IDX_Profile].user++;
if (this->props.auto_profile) {
uint32_t best = acp_card_find_best_profile_index(card, NULL);
@ -705,8 +717,7 @@ static void card_port_changed(void *data, uint32_t old_index, uint32_t new_index
op->name, np->name);
this->info.change_mask |= SPA_DEVICE_CHANGE_MASK_PARAMS;
this->params[IDX_Route].flags ^= SPA_PARAM_INFO_SERIAL;
emit_info(this, false);
this->params[IDX_Route].user++;
}
static void card_port_available(void *data, uint32_t index,
@ -720,9 +731,8 @@ static void card_port_available(void *data, uint32_t index,
acp_available_str(old), acp_available_str(available));
this->info.change_mask |= SPA_DEVICE_CHANGE_MASK_PARAMS;
this->params[IDX_EnumRoute].flags ^= SPA_PARAM_INFO_SERIAL;
this->params[IDX_Route].flags ^= SPA_PARAM_INFO_SERIAL;
emit_info(this, false);
this->params[IDX_EnumRoute].user++;
this->params[IDX_Route].user++;
if (this->props.auto_port) {
uint32_t i;
@ -745,8 +755,7 @@ static void on_volume_changed(void *data, struct acp_device *dev)
struct impl *this = data;
spa_log_info(this->log, "device %s volume changed", dev->name);
this->info.change_mask |= SPA_DEVICE_CHANGE_MASK_PARAMS;
this->params[IDX_Route].flags ^= SPA_PARAM_INFO_SERIAL;
emit_info(this, false);
this->params[IDX_Route].user++;
}
static void on_mute_changed(void *data, struct acp_device *dev)
@ -754,8 +763,7 @@ static void on_mute_changed(void *data, struct acp_device *dev)
struct impl *this = data;
spa_log_info(this->log, "device %s mute changed", dev->name);
this->info.change_mask |= SPA_DEVICE_CHANGE_MASK_PARAMS;
this->params[IDX_Route].flags ^= SPA_PARAM_INFO_SERIAL;
emit_info(this, false);
this->params[IDX_Route].user++;
}
static void on_set_soft_volume(void *data, struct acp_device *dev,