1 files changed, 195 insertions, 0 deletions
diff --git a/src/polypcore/source.c b/src/polypcore/source.c
new file mode 100644
index 00000000..6e377b20
--- /dev/null
+++ b/src/polypcore/source.c
@@ -0,0 +1,195 @@
+/* $Id$ */
+
+/***
+  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 "source.h"
+#include "source-output.h"
+#include "namereg.h"
+#include "xmalloc.h"
+#include "subscribe.h"
+#include "log.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);
+}
+