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authorPierre Ossman <ossman@cendio.se>2006-02-16 19:19:58 +0000
committerPierre Ossman <ossman@cendio.se>2006-02-16 19:19:58 +0000
commite205b25d65ccb380fa158711e24d55b6de5d9bc1 (patch)
tree470b4ced153c9ff18b8e35deb05c7a95efc838fc /src/polypcore/sink.c
parent5b881e62282f26b353635120935d114e0c7c3f3c (diff)
Reorganised the source tree. We now have src/ with a couple of subdirs:
* daemon/ - Contains the files specific to the polypaudio daemon. * modules/ - All loadable modules. * polyp/ - Files that are part of the public, application interface or are only used in libpolyp. * polypcore/ - All other shared files. * tests/ - Test programs. * utils/ - Utility programs. git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/polypcore/sink.c')
-rw-r--r--src/polypcore/sink.c445
1 files changed, 445 insertions, 0 deletions
diff --git a/src/polypcore/sink.c b/src/polypcore/sink.c
new file mode 100644
index 00000000..411befe7
--- /dev/null
+++ b/src/polypcore/sink.c
@@ -0,0 +1,445 @@
+/* $Id$ */
+
+/***
+ 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 <stdlib.h>
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "sink.h"
+#include "sink-input.h"
+#include "namereg.h"
+#include "util.h"
+#include "sample-util.h"
+#include "xmalloc.h"
+#include "subscribe.h"
+#include "log.h"
+#include <polyp/polyplib-introspect.h>
+
+#define MAX_MIX_CHANNELS 32
+
+pa_sink* pa_sink_new(
+ pa_core *core,
+ const char *driver,
+ const char *name,
+ int fail,
+ const pa_sample_spec *spec,
+ const pa_channel_map *map) {
+
+ pa_sink *s;
+ char *n = NULL;
+ char st[256];
+ int r;
+
+ assert(core);
+ assert(name);
+ assert(*name);
+ assert(spec);
+
+ s = pa_xnew(pa_sink, 1);
+
+ if (!(name = pa_namereg_register(core, name, PA_NAMEREG_SINK, s, fail))) {
+ pa_xfree(s);
+ return NULL;
+ }
+
+ s->ref = 1;
+ s->core = core;
+ s->state = PA_SINK_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->inputs = pa_idxset_new(NULL, NULL);
+
+ pa_cvolume_reset(&s->sw_volume, spec->channels);
+ pa_cvolume_reset(&s->hw_volume, spec->channels);
+
+ s->get_latency = NULL;
+ s->notify = NULL;
+ s->set_hw_volume = NULL;
+ s->get_hw_volume = NULL;
+ s->userdata = NULL;
+
+ r = pa_idxset_put(core->sinks, 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);
+
+ n = pa_sprintf_malloc("%s_monitor", name);
+ s->monitor_source = pa_source_new(core, driver, n, 0, spec, map);
+ assert(s->monitor_source);
+ pa_xfree(n);
+ s->monitor_source->monitor_of = s;
+ s->monitor_source->description = pa_sprintf_malloc("Monitor source of sink '%s'", s->name);
+
+ pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
+
+ return s;
+}
+
+void pa_sink_disconnect(pa_sink* s) {
+ pa_sink_input *i, *j = NULL;
+
+ assert(s);
+ assert(s->state == PA_SINK_RUNNING);
+
+ pa_namereg_unregister(s->core, s->name);
+
+ while ((i = pa_idxset_first(s->inputs, NULL))) {
+ assert(i != j);
+ pa_sink_input_kill(i);
+ j = i;
+ }
+
+ pa_source_disconnect(s->monitor_source);
+
+ pa_idxset_remove_by_data(s->core->sinks, s, NULL);
+
+ s->get_latency = NULL;
+ s->notify = NULL;
+ s->get_hw_volume = NULL;
+ s->set_hw_volume = NULL;
+
+ s->state = PA_SINK_DISCONNECTED;
+ pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
+}
+
+static void sink_free(pa_sink *s) {
+ assert(s);
+ assert(!s->ref);
+
+ if (s->state != PA_SINK_DISCONNECTED)
+ pa_sink_disconnect(s);
+
+ pa_log_info(__FILE__": freed %u \"%s\"\n", s->index, s->name);
+
+ pa_source_unref(s->monitor_source);
+ s->monitor_source = NULL;
+
+ pa_idxset_free(s->inputs, NULL, NULL);
+
+ pa_xfree(s->name);
+ pa_xfree(s->description);
+ pa_xfree(s->driver);
+ pa_xfree(s);
+}
+
+void pa_sink_unref(pa_sink*s) {
+ assert(s);
+ assert(s->ref >= 1);
+
+ if (!(--s->ref))
+ sink_free(s);
+}
+
+pa_sink* pa_sink_ref(pa_sink *s) {
+ assert(s);
+ assert(s->ref >= 1);
+
+ s->ref++;
+ return s;
+}
+
+void pa_sink_notify(pa_sink*s) {
+ assert(s);
+ assert(s->ref >= 1);
+
+ if (s->notify)
+ s->notify(s);
+}
+
+static unsigned fill_mix_info(pa_sink *s, pa_mix_info *info, unsigned maxinfo) {
+ uint32_t idx = PA_IDXSET_INVALID;
+ pa_sink_input *i;
+ unsigned n = 0;
+
+ assert(s);
+ assert(s->ref >= 1);
+ assert(info);
+
+ for (i = pa_idxset_first(s->inputs, &idx); maxinfo > 0 && i; i = pa_idxset_next(s->inputs, &idx)) {
+ /* Increase ref counter, to make sure that this input doesn't
+ * vanish while we still need it */
+ pa_sink_input_ref(i);
+
+ if (pa_sink_input_peek(i, &info->chunk, &info->volume) < 0) {
+ pa_sink_input_unref(i);
+ continue;
+ }
+
+ info->userdata = i;
+
+ assert(info->chunk.memblock);
+ assert(info->chunk.memblock->data);
+ assert(info->chunk.length);
+
+ info++;
+ maxinfo--;
+ n++;
+ }
+
+ return n;
+}
+
+static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned maxinfo, size_t length) {
+ assert(s);
+ assert(s->ref >= 1);
+ assert(info);
+
+ for (; maxinfo > 0; maxinfo--, info++) {
+ pa_sink_input *i = info->userdata;
+
+ assert(i);
+ assert(info->chunk.memblock);
+
+ /* Drop read data */
+ pa_sink_input_drop(i, &info->chunk, length);
+ pa_memblock_unref(info->chunk.memblock);
+
+ /* Decrease ref counter */
+ pa_sink_input_unref(i);
+ info->userdata = NULL;
+ }
+}
+
+int pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
+ pa_mix_info info[MAX_MIX_CHANNELS];
+ unsigned n;
+ int r = -1;
+
+ assert(s);
+ assert(s->ref >= 1);
+ assert(length);
+ assert(result);
+
+ pa_sink_ref(s);
+
+ n = fill_mix_info(s, info, MAX_MIX_CHANNELS);
+
+ if (n <= 0)
+ goto finish;
+
+ if (n == 1) {
+ pa_cvolume volume;
+
+ *result = info[0].chunk;
+ pa_memblock_ref(result->memblock);
+
+ if (result->length > length)
+ result->length = length;
+
+ pa_sw_cvolume_multiply(&volume, &s->sw_volume, &info[0].volume);
+
+ if (!pa_cvolume_is_norm(&volume)) {
+ pa_memchunk_make_writable(result, s->core->memblock_stat, 0);
+ pa_volume_memchunk(result, &s->sample_spec, &volume);
+ }
+ } else {
+ result->memblock = pa_memblock_new(length, s->core->memblock_stat);
+ assert(result->memblock);
+
+ result->length = pa_mix(info, n, result->memblock->data, length, &s->sample_spec, &s->sw_volume);
+ result->index = 0;
+ }
+
+ inputs_drop(s, info, n, result->length);
+ pa_source_post(s->monitor_source, result);
+
+ r = 0;
+
+finish:
+ pa_sink_unref(s);
+
+ return r;
+}
+
+int pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
+ pa_mix_info info[MAX_MIX_CHANNELS];
+ unsigned n;
+ int r = -1;
+
+ assert(s);
+ assert(s->ref >= 1);
+ assert(target);
+ assert(target->memblock);
+ assert(target->length);
+ assert(target->memblock->data);
+
+ pa_sink_ref(s);
+
+ n = fill_mix_info(s, info, MAX_MIX_CHANNELS);
+
+ if (n <= 0)
+ goto finish;
+
+ if (n == 1) {
+ pa_cvolume volume;
+
+ if (target->length > info[0].chunk.length)
+ target->length = info[0].chunk.length;
+
+ memcpy((uint8_t*) target->memblock->data + target->index,
+ (uint8_t*) info[0].chunk.memblock->data + info[0].chunk.index,
+ target->length);
+
+ pa_sw_cvolume_multiply(&volume, &s->sw_volume, &info[0].volume);
+
+ if (!pa_cvolume_is_norm(&volume))
+ pa_volume_memchunk(target, &s->sample_spec, &volume);
+ } else
+ target->length = pa_mix(info, n,
+ (uint8_t*) target->memblock->data + target->index,
+ target->length,
+ &s->sample_spec,
+ &s->sw_volume);
+
+ inputs_drop(s, info, n, target->length);
+ pa_source_post(s->monitor_source, target);
+
+ r = 0;
+
+finish:
+ pa_sink_unref(s);
+
+ return r;
+}
+
+void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
+ pa_memchunk chunk;
+ size_t l, d;
+
+ assert(s);
+ assert(s->ref >= 1);
+ assert(target);
+ assert(target->memblock);
+ assert(target->length);
+ assert(target->memblock->data);
+
+ pa_sink_ref(s);
+
+ l = target->length;
+ d = 0;
+ while (l > 0) {
+ chunk = *target;
+ chunk.index += d;
+ chunk.length -= d;
+
+ if (pa_sink_render_into(s, &chunk) < 0)
+ break;
+
+ d += chunk.length;
+ l -= chunk.length;
+ }
+
+ if (l > 0) {
+ chunk = *target;
+ chunk.index += d;
+ chunk.length -= d;
+ pa_silence_memchunk(&chunk, &s->sample_spec);
+ }
+
+ pa_sink_unref(s);
+}
+
+void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
+ assert(s);
+ assert(s->ref >= 1);
+ assert(length);
+ assert(result);
+
+ /*** This needs optimization ***/
+
+ result->memblock = pa_memblock_new(result->length = length, s->core->memblock_stat);
+ result->index = 0;
+
+ pa_sink_render_into_full(s, result);
+}
+
+pa_usec_t pa_sink_get_latency(pa_sink *s) {
+ assert(s);
+ assert(s->ref >= 1);
+
+ if (!s->get_latency)
+ return 0;
+
+ return s->get_latency(s);
+}
+
+void pa_sink_set_owner(pa_sink *s, pa_module *m) {
+ assert(s);
+ assert(s->ref >= 1);
+
+ s->owner = m;
+
+ if (s->monitor_source)
+ pa_source_set_owner(s->monitor_source, m);
+}
+
+void pa_sink_set_volume(pa_sink *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_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
+}
+
+const pa_cvolume *pa_sink_get_volume(pa_sink *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;
+}