big s/polyp/pulse/g

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/pulsecore/source.c

@@ -0,0 +1,313 @@
+/* $Id$ */
+
+/***
+  This file is part of PulseAudio.
+ 
+  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 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, 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 <pulse/utf8.h>
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/source-output.h>
+#include <pulsecore/namereg.h>
+#include <pulsecore/core-subscribe.h>
+#include <pulsecore/log.h>
+#include <pulsecore/sample-util.h>
+
+#include "source.h"
+
+#define CHECK_VALIDITY_RETURN_NULL(condition) \
+do {\
+if (!(condition)) \
+    return NULL; \
+} while (0)
+
+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;
+    pa_channel_map tmap;
+    
+    assert(core);
+    assert(name);
+    assert(spec);
+
+    CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec));
+
+    if (!map)
+        map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT);
+
+    CHECK_VALIDITY_RETURN_NULL(map && pa_channel_map_valid(map));
+    CHECK_VALIDITY_RETURN_NULL(map->channels == spec->channels);
+    CHECK_VALIDITY_RETURN_NULL(!driver || pa_utf8_valid(driver));
+    CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name) && *name);
+
+    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;
+    s->channel_map = *map;
+
+    s->outputs = pa_idxset_new(NULL, NULL);
+    s->monitor_of = NULL;
+
+    pa_cvolume_reset(&s->sw_volume, spec->channels);
+    pa_cvolume_reset(&s->hw_volume, spec->channels);
+    s->sw_muted = 0;
+    s->hw_muted = 0;
+
+    s->get_latency = NULL;
+    s->notify = NULL;
+    s->set_hw_volume = NULL;
+    s->get_hw_volume = NULL;
+    s->set_hw_mute = NULL;
+    s->get_hw_mute = 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\"", 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->get_hw_volume = NULL;
+    s->set_hw_volume = NULL;
+    s->set_hw_mute = NULL;
+    s->get_hw_mute = 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\"", 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, PA_GCC_UNUSED 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);
+
+    if (s->sw_muted || !pa_cvolume_is_norm(&s->sw_volume)) {
+        pa_memchunk vchunk = *chunk;
+        
+        pa_memblock_ref(vchunk.memblock);
+        pa_memchunk_make_writable(&vchunk, s->core->memblock_stat, 0);
+        if (s->sw_muted)
+            pa_silence_memchunk(&vchunk, &s->sample_spec);
+        else
+            pa_volume_memchunk(&vchunk, &s->sample_spec, &s->sw_volume);
+        pa_idxset_foreach(s->outputs, do_post, &vchunk);
+        pa_memblock_unref(vchunk.memblock);
+    } else
+        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);
+}
+
+void pa_source_set_volume(pa_source *s, pa_mixer_t m, const pa_cvolume *volume) {
+    pa_cvolume *v;
+    
+    assert(s);
+    assert(s->ref >= 1);
+    assert(volume);
+
+    if (m == PA_MIXER_HARDWARE && s->set_hw_volume) 
+        v = &s->hw_volume;
+    else
+        v = &s->sw_volume;
+
+    if (pa_cvolume_equal(v, volume))
+        return;
+        
+    *v = *volume;
+
+    if (v == &s->hw_volume)
+        if (s->set_hw_volume(s) < 0)
+            s->sw_volume =  *volume;
+
+    pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
+}
+
+const pa_cvolume *pa_source_get_volume(pa_source *s, pa_mixer_t m) {
+    assert(s);
+    assert(s->ref >= 1);
+
+    if (m == PA_MIXER_HARDWARE && s->set_hw_volume) {
+
+        if (s->get_hw_volume)
+            s->get_hw_volume(s);
+        
+        return &s->hw_volume;
+    } else
+        return &s->sw_volume;
+}
+
+void pa_source_set_mute(pa_source *s, pa_mixer_t m, int mute) {
+    int *t;
+    
+    assert(s);
+    assert(s->ref >= 1);
+
+    if (m == PA_MIXER_HARDWARE && s->set_hw_mute) 
+        t = &s->hw_muted;
+    else
+        t = &s->sw_muted;
+
+    if (!!*t == !!mute)
+        return;
+        
+    *t = !!mute;
+
+    if (t == &s->hw_muted)
+        if (s->set_hw_mute(s) < 0)
+            s->sw_muted = !!mute;
+
+    pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
+}
+
+int pa_source_get_mute(pa_source *s, pa_mixer_t m) {
+    assert(s);
+    assert(s->ref >= 1);
+
+    if (m == PA_MIXER_HARDWARE && s->set_hw_mute) {
+
+        if (s->get_hw_mute)
+            s->get_hw_mute(s);
+        
+        return s->hw_muted;
+    } else
+        return s->sw_muted;
+}