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/* $Id$ */
/***
This file is part of polypaudio.
polypaudio 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 of the License,
or (at your option) any later version.
polypaudio 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 polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <polypcore/source-output.h>
#include <polypcore/namereg.h>
#include <polypcore/xmalloc.h>
#include <polypcore/core-subscribe.h>
#include <polypcore/log.h>
#include "source.h"
pa_source* pa_source_new(
pa_core *core,
const char *driver,
const char *name,
int fail,
const pa_sample_spec *spec,
const pa_channel_map *map) {
pa_source *s;
char st[256];
int r;
assert(core);
assert(name);
assert(*name);
assert(spec);
s = pa_xnew(pa_source, 1);
if (!(name = pa_namereg_register(core, name, PA_NAMEREG_SOURCE, s, fail))) {
pa_xfree(s);
return NULL;
}
s->ref = 1;
s->core = core;
s->state = PA_SOURCE_RUNNING;
s->name = pa_xstrdup(name);
s->description = NULL;
s->driver = pa_xstrdup(driver);
s->owner = NULL;
s->sample_spec = *spec;
if (map)
s->channel_map = *map;
else
pa_channel_map_init_auto(&s->channel_map, spec->channels);
s->outputs = pa_idxset_new(NULL, NULL);
s->monitor_of = NULL;
s->get_latency = NULL;
s->notify = NULL;
s->userdata = NULL;
r = pa_idxset_put(core->sources, s, &s->index);
assert(s->index != PA_IDXSET_INVALID && r >= 0);
pa_sample_spec_snprint(st, sizeof(st), spec);
pa_log_info(__FILE__": created %u \"%s\" with sample spec \"%s\"\n", s->index, s->name, st);
pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
return s;
}
void pa_source_disconnect(pa_source *s) {
pa_source_output *o, *j = NULL;
assert(s);
assert(s->state == PA_SOURCE_RUNNING);
pa_namereg_unregister(s->core, s->name);
while ((o = pa_idxset_first(s->outputs, NULL))) {
assert(o != j);
pa_source_output_kill(o);
j = o;
}
pa_idxset_remove_by_data(s->core->sources, s, NULL);
s->get_latency = NULL;
s->notify = NULL;
s->state = PA_SOURCE_DISCONNECTED;
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
}
static void source_free(pa_source *s) {
assert(s);
assert(!s->ref);
if (s->state != PA_SOURCE_DISCONNECTED)
pa_source_disconnect(s);
pa_log_info(__FILE__": freed %u \"%s\"\n", s->index, s->name);
pa_idxset_free(s->outputs, NULL, NULL);
pa_xfree(s->name);
pa_xfree(s->description);
pa_xfree(s->driver);
pa_xfree(s);
}
void pa_source_unref(pa_source *s) {
assert(s);
assert(s->ref >= 1);
if (!(--s->ref))
source_free(s);
}
pa_source* pa_source_ref(pa_source *s) {
assert(s);
assert(s->ref >= 1);
s->ref++;
return s;
}
void pa_source_notify(pa_source*s) {
assert(s);
assert(s->ref >= 1);
if (s->notify)
s->notify(s);
}
static int do_post(void *p, PA_GCC_UNUSED uint32_t idx, int *del, void*userdata) {
pa_source_output *o = p;
const pa_memchunk *chunk = userdata;
assert(o);
assert(chunk);
pa_source_output_push(o, chunk);
return 0;
}
void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
assert(s);
assert(s->ref >= 1);
assert(chunk);
pa_source_ref(s);
pa_idxset_foreach(s->outputs, do_post, (void*) chunk);
pa_source_unref(s);
}
void pa_source_set_owner(pa_source *s, pa_module *m) {
assert(s);
assert(s->ref >= 1);
s->owner = m;
}
pa_usec_t pa_source_get_latency(pa_source *s) {
assert(s);
assert(s->ref >= 1);
if (!s->get_latency)
return 0;
return s->get_latency(s);
}
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