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switch-on-port-available: Prepare for dual-direction ports going away

Browse source 
As an extra, I broke try_to_switch_profile() into smaller
functions, because the two levels of loops with continue
statements inside both were a bit hard to follow.
This commit is contained in:
Tanu Kaskinen 2012-06-29 18:04:56 +03:00 • committed by Arun Raghavan
parent 6b08d75c94
commit 7560314f36
1 changed files with 48 additions and 29 deletions
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77
src/modules/module-switch-on-port-available.c
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@ -51,6 +51,42 @@ static pa_device_port* find_best_port(pa_hashmap *ports) {
return result;
}
static bool profile_good_for_output(pa_card_profile *profile) {
pa_sink *sink;
uint32_t idx;
pa_assert(profile);
if (profile->card->active_profile->n_sources != profile->n_sources)
return false;
if (profile->card->active_profile->max_source_channels != profile->max_source_channels)
return false;
/* Try not to switch to HDMI sinks from analog when HDMI is becoming available */
PA_IDXSET_FOREACH(sink, profile->card->sinks, idx) {
if (!sink->active_port)
continue;
if (sink->active_port->available != PA_AVAILABLE_NO)
return false;
}
return true;
}
static bool profile_good_for_input(pa_card_profile *profile) {
pa_assert(profile);
if (profile->card->active_profile->n_sinks != profile->n_sinks)
return false;
if (profile->card->active_profile->max_sink_channels != profile->max_sink_channels)
return false;
return true;
}
static pa_bool_t try_to_switch_profile(pa_card *card, pa_device_port *port) {
pa_card_profile *best_profile = NULL, *profile;
void *state;
@ -58,42 +94,25 @@ static pa_bool_t try_to_switch_profile(pa_card *card, pa_device_port *port) {
pa_log_debug("Finding best profile");
PA_HASHMAP_FOREACH(profile, port->profiles, state) {
pa_direction_t direction = port->is_output ? PA_DIRECTION_OUTPUT : PA_DIRECTION_INPUT;
bool good;
if (best_profile && best_profile->priority >= profile->priority)
continue;
/* We make a best effort to keep other direction unchanged */
if (!port->is_input) {
if (card->active_profile->n_sources != profile->n_sources)
continue;
switch (direction) {
case PA_DIRECTION_OUTPUT:
good = profile_good_for_output(profile);
break;
if (card->active_profile->max_source_channels != profile->max_source_channels)
continue;
case PA_DIRECTION_INPUT:
good = profile_good_for_input(profile);
break;
}
if (!port->is_output) {
if (card->active_profile->n_sinks != profile->n_sinks)
continue;
if (card->active_profile->max_sink_channels != profile->max_sink_channels)
continue;
}
if (port->is_output) {
/* Try not to switch to HDMI sinks from analog when HDMI is becoming available */
uint32_t state2;
pa_sink *sink;
pa_bool_t found_active_port = FALSE;
PA_IDXSET_FOREACH(sink, card->sinks, state2) {
if (!sink->active_port)
continue;
if (sink->active_port->available != PA_AVAILABLE_NO)
found_active_port = TRUE;
}
if (found_active_port)
continue;
}
if (!good)
continue;
best_profile = profile;
}