-/*** Interface to PulseAudio ***/
-
-static pa_context *pulse_ctx;
-static struct main_timer pulse_connect_timer;
-
-static void pulse_dump(void);
-
-enum pulse_state {
- PS_OFFLINE,
- PS_SUBSCRIBE,
- PS_GET_CLIENTS,
- PS_GET_SINKS,
- PS_GET_SINK_INPUTS,
- PS_ONLINE,
-};
-
-static enum pulse_state pulse_state;
-#define PULSE_STATE(s) do { pulse_state = s; DBG("Pulse: " #s); } while (0)
-
-// Tracking of currently running asynchronous operations
-struct pulse_op {
- cnode n;
- pa_operation *o;
- bool is_init;
-};
-
-static clist pulse_op_list;
-
-static struct pulse_op *pulse_op_new(void)
-{
- struct pulse_op *op = xmalloc_zero(sizeof(*op));
- clist_add_tail(&pulse_op_list, &op->n);
- return op;
-}
-
-static void pulse_op_done(struct pulse_op *op)
-{
- if (op->o)
- pa_operation_unref(op->o);
- clist_remove(&op->n);
- xfree(op);
-}
-
-static void pulse_op_cancel_all(void)
-{
- struct pulse_op *op;
- while (op = (struct pulse_op *) clist_head(&pulse_op_list))
- {
- DBG("Pulse: Cancelling pending operation");
- pa_operation_cancel(op->o);
- pulse_op_done(op);
- }
-}
-
-#define PULSE_ASYNC_RUN(name, ...) do { struct pulse_op *_op = pulse_op_new(); _op->o = name(__VA_ARGS__, _op); } while (0)
-#define PULSE_ASYNC_INIT_RUN(name, ...) do { struct pulse_op *_op = pulse_op_new(); _op->is_init = 1; _op->o = name(__VA_ARGS__, _op); } while (0)
-
-static void pulse_success_cb(pa_context *ctx UNUSED, int success, void *userdata)
-{
- if (!success)
- msg(L_ERROR, "Pulse: Failure reported");
- pulse_op_done(userdata);
-}
-
-static void pulse_dump_proplist(pa_proplist *pl UNUSED)
-{
-#if 0
- void *iterator = NULL;
- const char *key;
-
- while (key = pa_proplist_iterate(pl, &iterator))
- {
- const char *val = pa_proplist_gets(pl, key);
- DBG(" %s = %s", key, val);
- }
-#endif
-}
-
-struct pulse_sink_input {
- int idx;
- char *name;
- int client_idx;
- int sink_idx;
- uns channels;
- uns volume;
- uns mute;
- int noct_client_idx; // Used by the high-level logic below
-};
-
-#define HASH_NODE struct pulse_sink_input
-#define HASH_PREFIX(x) pulse_sink_input_##x
-#define HASH_KEY_ATOMIC idx
-#define HASH_WANT_CLEANUP
-#define HASH_WANT_LOOKUP
-#define HASH_WANT_REMOVE
-#define HASH_ZERO_FILL
-#include <ucw/hashtable.h>
-
-#define SET_STRING(_field, _val) do { if (!_field || strcmp(_field, _val)) { xfree(_field); _field = xstrdup(_val); } } while (0)
-
-static void pulse_sink_input_cb(pa_context *ctx UNUSED, const pa_sink_input_info *i, int eol, void *userdata)
-{
- struct pulse_op *op = userdata;
-
- if (eol)
- {
- if (op->is_init)
- {
- PULSE_STATE(PS_ONLINE);
- schedule_update();
- }
- pulse_op_done(op);
- return;
- }
-
- DBG("Pulse: SINK INPUT #%u: %s client=%d sink=%d chans=%d has_vol=%d vol_rw=%d volume=%u mute=%d",
- i->index, i->name, i->client, i->sink, i->channel_map.channels, i->has_volume, i->volume_writable, i->volume.values[0], i->mute);
- pulse_dump_proplist(i->proplist);
-
- struct pulse_sink_input *s = pulse_sink_input_lookup(i->index);
- SET_STRING(s->name, i->name);
- s->client_idx = i->client;
- s->sink_idx = i->sink;
- s->channels = i->channel_map.channels;
- s->volume = pa_cvolume_avg(&i->volume);
- s->mute = i->mute;
- schedule_update();
-}
-
-static void pulse_sink_input_gone(int idx)
-{
- DBG("Pulse: REMOVE SINK INPUT #%d", idx);
- struct pulse_sink_input *s = pulse_sink_input_lookup(idx);
- pulse_sink_input_remove(s);
- schedule_update();
-}
-
-struct pulse_sink {
- int idx;
- char *name;
- uns channels;
- uns volume;
- uns base_volume;
- int mute;
-};
-
-#define HASH_NODE struct pulse_sink
-#define HASH_PREFIX(x) pulse_sink_##x
-#define HASH_KEY_ATOMIC idx
-#define HASH_WANT_CLEANUP
-#define HASH_WANT_LOOKUP
-#define HASH_WANT_REMOVE
-#define HASH_ZERO_FILL
-#include <ucw/hashtable.h>
-
-static void pulse_sink_cb(pa_context *ctx, const pa_sink_info *i, int eol, void *userdata)
-{
- struct pulse_op *op = userdata;
-
- if (eol)
- {
- if (op->is_init)
- {
- PULSE_STATE(PS_GET_SINK_INPUTS);
- PULSE_ASYNC_INIT_RUN(pa_context_get_sink_input_info_list, ctx, pulse_sink_input_cb);
- }
- pulse_op_done(op);
- return;
- }
-
- DBG("Pulse: SINK #%u: %s (%s) flags=%08x channels=%u volume=%u mute=%d base_vol=%u state=%u",
- i->index, i->name, i->description, i->flags, i->channel_map.channels, i->volume.values[0], i->mute, i->base_volume, i->state);
- pulse_dump_proplist(i->proplist);
-
- struct pulse_sink *s = pulse_sink_lookup(i->index);
- SET_STRING(s->name, i->name);
- s->channels = i->channel_map.channels;
- s->volume = pa_cvolume_avg(&i->volume);
- s->base_volume = i->base_volume;
- s->mute = i->mute;
- schedule_update();
-}
-
-static void pulse_sink_gone(int idx)
-{
- DBG("Pulse: REMOVE SINK #%d", idx);
- struct pulse_sink *s = pulse_sink_lookup(idx);
- pulse_sink_remove(s);
- schedule_update();
-}
-
-static struct pulse_sink *pulse_sink_by_name(const char *name)
-{
- HASH_FOR_ALL(pulse_sink, s)
- {
- if (!strcmp(s->name, name))
- return s;
- }
- HASH_END_FOR;
- return NULL;
-}
-
-struct pulse_client {
- int idx;
- char *name;
- char *host;
-};
-
-#define HASH_NODE struct pulse_client
-#define HASH_PREFIX(x) pulse_client_##x
-#define HASH_KEY_ATOMIC idx
-#define HASH_WANT_CLEANUP
-#define HASH_WANT_LOOKUP
-#define HASH_WANT_REMOVE
-#define HASH_ZERO_FILL
-#include <ucw/hashtable.h>
-
-static void pulse_client_cb(pa_context *ctx, const pa_client_info *i, int eol, void *userdata)
-{
- struct pulse_op *op = userdata;
-
- if (eol)
- {
- if (op->is_init)
- {
- PULSE_STATE(PS_GET_SINKS);
- PULSE_ASYNC_INIT_RUN(pa_context_get_sink_info_list, ctx, pulse_sink_cb);
- }
- pulse_op_done(op);
- return;
- }
-
- char *host = stk_strdup(pa_proplist_gets(i->proplist, "application.process.host") ? : "?");
- DBG("Pulse: CLIENT #%u: %s mod=%u drv=%s host=%s",
- i->index, i->name, i->owner_module, i->driver, host);
- pulse_dump_proplist(i->proplist);
-
- struct pulse_client *c = pulse_client_lookup(i->index);
- SET_STRING(c->name, i->name);
- SET_STRING(c->host, host);
- schedule_update();
-}
-
-static void pulse_client_gone(int idx)
-{
- DBG("Pulse: REMOVE CLIENT #%d", idx);
- struct pulse_client *c = pulse_client_lookup(idx);
- pulse_client_remove(c);
- schedule_update();
-}
-
-static void pulse_shutdown(void)
-{
- DBG("Pulse: Shutting down");
- pulse_client_cleanup();
- pulse_sink_cleanup();
- pulse_sink_input_cleanup();
-}
-
-static void pulse_subscribe_done_cb(pa_context *ctx, int success, void *userdata)
-{
- pulse_op_done(userdata);
-
- if (!success)
- msg(L_ERROR, "pa_context_subscribe failed: success=%d", success);
-
- PULSE_STATE(PS_GET_CLIENTS);
- PULSE_ASYNC_INIT_RUN(pa_context_get_client_info_list, ctx, pulse_client_cb);
-}
-
-static void pulse_event_cb(pa_context *ctx, pa_subscription_event_type_t type, uint32_t idx, void *userdata UNUSED)
-{
- DBG("Pulse: SUBSCRIBE EVENT type=%08x idx=%u", type, idx);
-
- uns object = type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK;
- uns action = type & PA_SUBSCRIPTION_EVENT_TYPE_MASK;
- switch (object)
- {
- case PA_SUBSCRIPTION_EVENT_CLIENT:
- if (action == PA_SUBSCRIPTION_EVENT_NEW || action == PA_SUBSCRIPTION_EVENT_CHANGE)
- PULSE_ASYNC_RUN(pa_context_get_client_info, ctx, idx, pulse_client_cb);
- else if (action == PA_SUBSCRIPTION_EVENT_REMOVE)
- pulse_client_gone(idx);
- break;
- case PA_SUBSCRIPTION_EVENT_SINK:
- if (action == PA_SUBSCRIPTION_EVENT_NEW || action == PA_SUBSCRIPTION_EVENT_CHANGE)
- PULSE_ASYNC_RUN(pa_context_get_sink_info_by_index, ctx, idx, pulse_sink_cb);
- else if (action == PA_SUBSCRIPTION_EVENT_REMOVE)
- pulse_sink_gone(idx);
- break;
- case PA_SUBSCRIPTION_EVENT_SINK_INPUT:
- if (action == PA_SUBSCRIPTION_EVENT_NEW || action == PA_SUBSCRIPTION_EVENT_CHANGE)
- PULSE_ASYNC_RUN(pa_context_get_sink_input_info, ctx, idx, pulse_sink_input_cb);
- else if (action == PA_SUBSCRIPTION_EVENT_REMOVE)
- pulse_sink_input_gone(idx);
- break;
- }
-}
-
-static void pulse_state_cb(pa_context *ctx, void *userdata UNUSED)
-{
- int state = pa_context_get_state(ctx);
- DBG("Pulse: State callback, new state = %d", state);
- if (state == PA_CONTEXT_READY)
- {
- if (pulse_state == PS_OFFLINE)
- {
- PULSE_STATE(PS_SUBSCRIBE);
- pa_context_set_subscribe_callback(ctx, pulse_event_cb, NULL);
- PULSE_ASYNC_INIT_RUN(pa_context_subscribe, ctx, PA_SUBSCRIPTION_MASK_ALL, pulse_subscribe_done_cb);
- }
- }
- else
- {
- if (pulse_state != PS_OFFLINE)
- {
- PULSE_STATE(PS_OFFLINE);
- pulse_op_cancel_all();
- pulse_shutdown();
- schedule_update();
- }
- if (state == PA_CONTEXT_FAILED && !timer_is_active(&pulse_connect_timer))
- timer_add_rel(&pulse_connect_timer, 2000);
- }
-}
-
-static void pulse_dump(void)
-{
- HASH_FOR_ALL(pulse_client, c)
- {
- DBG("## Client #%d: %s host=%s", c->idx, c->name, c->host);
- }
- HASH_END_FOR;
-
- HASH_FOR_ALL(pulse_sink, s)
- {
- DBG("## Sink #%d: %s channels=%u volume=%u base_vol=%u mute=%u",
- s->idx, s->name, s->channels, s->volume, s->base_volume, s->mute);
- }
- HASH_END_FOR;
-
- HASH_FOR_ALL(pulse_sink_input, s)
- {
- DBG("## Sink input #%d: %s client=%d sink=%d channels=%u volume=%u mute=%u",
- s->idx, s->name, s->client_idx, s->sink_idx, s->channels, s->volume, s->mute);
- }
- HASH_END_FOR;
-}
-
-static void pulse_connect(struct main_timer *t)
-{
- DBG("Pulse: Connecting");
- timer_del(t);
-
- clist_init(&pulse_op_list);
- pulse_client_init();
- pulse_sink_init();
- pulse_sink_input_init();
-
- if (pulse_ctx)
- pa_context_unref(pulse_ctx);
- pulse_ctx = pa_context_new(&pmain_api, "ursaryd");
-
- pa_context_set_state_callback(pulse_ctx, pulse_state_cb, NULL);
- pa_context_connect(pulse_ctx, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL);
-}
-
-static void pulse_init(void)
-{
- pmain_init();
-
- pulse_connect_timer.handler = pulse_connect;
- timer_add_rel(&pulse_connect_timer, 0);
-}
-
-/*** High-level logic ***/
-
-static struct main_timer update_timer;