Adding upstream version 14.2.upstream/14.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 303 insertions, 0 deletions

diff --git a/src/pulsecore/device-port.c b/src/pulsecore/device-port.c
new file mode 100644
index 0000000..4f9235e
--- /dev/null
+++ b/src/pulsecore/device-port.c
@@ -0,0 +1,303 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2006 Lennart Poettering
+  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+  Copyright 2011 David Henningsson, Canonical Ltd.
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "device-port.h"
+#include <pulsecore/card.h>
+#include <pulsecore/core-util.h>
+
+PA_DEFINE_PUBLIC_CLASS(pa_device_port, pa_object);
+
+pa_device_port_new_data *pa_device_port_new_data_init(pa_device_port_new_data *data) {
+    pa_assert(data);
+
+    pa_zero(*data);
+    data->type = PA_DEVICE_PORT_TYPE_UNKNOWN;
+    data->available = PA_AVAILABLE_UNKNOWN;
+    return data;
+}
+
+void pa_device_port_new_data_set_name(pa_device_port_new_data *data, const char *name) {
+    pa_assert(data);
+
+    pa_xfree(data->name);
+    data->name = pa_xstrdup(name);
+}
+
+void pa_device_port_new_data_set_description(pa_device_port_new_data *data, const char *description) {
+    pa_assert(data);
+
+    pa_xfree(data->description);
+    data->description = pa_xstrdup(description);
+}
+
+void pa_device_port_new_data_set_available(pa_device_port_new_data *data, pa_available_t available) {
+    pa_assert(data);
+
+    data->available = available;
+}
+
+void pa_device_port_new_data_set_availability_group(pa_device_port_new_data *data, const char *group) {
+    pa_assert(data);
+
+    pa_xfree(data->availability_group);
+    data->availability_group = pa_xstrdup(group);
+}
+
+void pa_device_port_new_data_set_direction(pa_device_port_new_data *data, pa_direction_t direction) {
+    pa_assert(data);
+
+    data->direction = direction;
+}
+
+void pa_device_port_new_data_set_type(pa_device_port_new_data *data, pa_device_port_type_t type) {
+    pa_assert(data);
+
+    data->type = type;
+}
+
+void pa_device_port_new_data_done(pa_device_port_new_data *data) {
+    pa_assert(data);
+
+    pa_xfree(data->name);
+    pa_xfree(data->description);
+    pa_xfree(data->availability_group);
+}
+
+void pa_device_port_set_preferred_profile(pa_device_port *p, const char *new_pp) {
+    pa_assert(p);
+
+    if (!pa_safe_streq(p->preferred_profile, new_pp)) {
+        pa_xfree(p->preferred_profile);
+        p->preferred_profile = pa_xstrdup(new_pp);
+    }
+}
+
+void pa_device_port_set_available(pa_device_port *p, pa_available_t status) {
+    pa_assert(p);
+
+    if (p->available == status)
+        return;
+
+/*    pa_assert(status != PA_AVAILABLE_UNKNOWN); */
+
+    p->available = status;
+    pa_log_debug("Setting port %s to status %s", p->name, pa_available_to_string(status));
+
+    /* Post subscriptions to the card which owns us */
+    /* XXX: We need to check p->card, because this function may be called
+     * before the card object has been created. The card object should probably
+     * be created before port objects, and then p->card could be non-NULL for
+     * the whole lifecycle of pa_device_port. */
+    if (p->card && p->card->linked) {
+        pa_sink *sink;
+        pa_source *source;
+
+        pa_subscription_post(p->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, p->card->index);
+
+        sink = pa_device_port_get_sink(p);
+        source = pa_device_port_get_source(p);
+        if (sink)
+            pa_subscription_post(p->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, sink->index);
+        if (source)
+            pa_subscription_post(p->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, source->index);
+
+        /* A sink or source whose active port is unavailable can't be the
+         * default sink/source, so port availability changes may affect the
+         * default sink/source choice. */
+        if (p->direction == PA_DIRECTION_OUTPUT)
+            pa_core_update_default_sink(p->core);
+        else
+            pa_core_update_default_source(p->core);
+
+        if (p->direction == PA_DIRECTION_OUTPUT) {
+            if (sink && p == sink->active_port) {
+                if (sink->active_port->available == PA_AVAILABLE_NO) {
+                    if (p->core->rescue_streams)
+                        pa_sink_move_streams_to_default_sink(p->core, sink, false);
+                } else
+                    pa_core_move_streams_to_newly_available_preferred_sink(p->core, sink);
+            }
+        } else {
+            if (source && p == source->active_port) {
+                if (source->active_port->available == PA_AVAILABLE_NO) {
+                    if (p->core->rescue_streams)
+                        pa_source_move_streams_to_default_source(p->core, source, false);
+                } else
+                    pa_core_move_streams_to_newly_available_preferred_source(p->core, source);
+            }
+        }
+
+        /* This may cause the sink and source pointers to become invalid, if
+         * the availability change causes the card profile to get switched. If
+         * you add code after this line, remember to take that into account. */
+        pa_hook_fire(&p->core->hooks[PA_CORE_HOOK_PORT_AVAILABLE_CHANGED], p);
+    }
+}
+
+static void device_port_free(pa_object *o) {
+    pa_device_port *p = PA_DEVICE_PORT(o);
+
+    pa_assert(p);
+    pa_assert(pa_device_port_refcnt(p) == 0);
+
+    if (p->impl_free)
+        p->impl_free(p);
+
+    if (p->proplist)
+        pa_proplist_free(p->proplist);
+
+    if (p->profiles)
+        pa_hashmap_free(p->profiles);
+
+    pa_xfree(p->availability_group);
+    pa_xfree(p->preferred_profile);
+    pa_xfree(p->name);
+    pa_xfree(p->description);
+    pa_xfree(p);
+}
+
+pa_device_port *pa_device_port_new(pa_core *c, pa_device_port_new_data *data, size_t extra) {
+    pa_device_port *p;
+
+    pa_assert(data);
+    pa_assert(data->name);
+    pa_assert(data->description);
+    pa_assert(data->direction == PA_DIRECTION_OUTPUT || data->direction == PA_DIRECTION_INPUT);
+
+    p = PA_DEVICE_PORT(pa_object_new_internal(PA_ALIGN(sizeof(pa_device_port)) + extra, pa_device_port_type_id, pa_device_port_check_type));
+    p->parent.free = device_port_free;
+
+    p->name = data->name;
+    data->name = NULL;
+    p->description = data->description;
+    data->description = NULL;
+    p->core = c;
+    p->card = NULL;
+    p->priority = 0;
+    p->available = data->available;
+    p->availability_group = data->availability_group;
+    data->availability_group = NULL;
+    p->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
+    p->direction = data->direction;
+    p->type = data->type;
+
+    p->latency_offset = 0;
+    p->proplist = pa_proplist_new();
+
+    return p;
+}
+
+void pa_device_port_set_latency_offset(pa_device_port *p, int64_t offset) {
+    uint32_t state;
+    pa_core *core;
+
+    pa_assert(p);
+
+    if (offset == p->latency_offset)
+        return;
+
+    p->latency_offset = offset;
+
+    switch (p->direction) {
+        case PA_DIRECTION_OUTPUT: {
+            pa_sink *sink;
+
+            PA_IDXSET_FOREACH(sink, p->core->sinks, state) {
+                if (sink->active_port == p) {
+                    pa_sink_set_port_latency_offset(sink, p->latency_offset);
+                    break;
+                }
+            }
+
+            break;
+        }
+
+        case PA_DIRECTION_INPUT: {
+            pa_source *source;
+
+            PA_IDXSET_FOREACH(source, p->core->sources, state) {
+                if (source->active_port == p) {
+                    pa_source_set_port_latency_offset(source, p->latency_offset);
+                    break;
+                }
+            }
+
+            break;
+        }
+    }
+
+    pa_assert_se(core = p->core);
+    pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, p->card->index);
+    pa_hook_fire(&core->hooks[PA_CORE_HOOK_PORT_LATENCY_OFFSET_CHANGED], p);
+}
+
+pa_device_port *pa_device_port_find_best(pa_hashmap *ports)
+{
+    void *state;
+    pa_device_port *p, *best = NULL;
+
+    if (!ports)
+        return NULL;
+
+    /* First run: skip unavailable ports */
+    PA_HASHMAP_FOREACH(p, ports, state) {
+        if (p->available == PA_AVAILABLE_NO)
+            continue;
+
+        if (!best || p->priority > best->priority)
+            best = p;
+    }
+
+    /* Second run: if only unavailable ports exist, still suggest a port */
+    if (!best) {
+        PA_HASHMAP_FOREACH(p, ports, state)
+            if (!best || p->priority > best->priority)
+                best = p;
+    }
+
+    return best;
+}
+
+pa_sink *pa_device_port_get_sink(pa_device_port *p) {
+    pa_sink *rs = NULL;
+    pa_sink *sink;
+    uint32_t state;
+
+    PA_IDXSET_FOREACH(sink, p->card->sinks, state)
+        if (p == pa_hashmap_get(sink->ports, p->name)) {
+            rs = sink;
+            break;
+        }
+    return rs;
+}
+
+pa_source *pa_device_port_get_source(pa_device_port *p) {
+    pa_source *rs = NULL;
+    pa_source *source;
+    uint32_t state;
+
+    PA_IDXSET_FOREACH(source, p->card->sources, state)
+        if (p == pa_hashmap_get(source->ports, p->name)) {
+            rs = source;
+            break;
+        }
+    return rs;
+}