--- /dev/null
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
+ Copyright 2004-2006, 2008 Lennart Poettering
+
+ Contact: Marc-Andre Lureau <marc-andre.lureau@nokia.com>
+
+ 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 <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/core-error.h>
+#include <pulsecore/module.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/log.h>
+#include <pulsecore/sink-input.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/macro.h>
+
+#include "module-flat-volume-symdef.h"
+
+PA_MODULE_AUTHOR("Marc-Andre Lureau");
+PA_MODULE_DESCRIPTION("Flat volume");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(TRUE);
+PA_MODULE_USAGE("");
+
+struct userdata {
+ pa_subscription *subscription;
+ pa_hook_slot *sink_input_set_volume_hook_slot;
+ pa_hook_slot *sink_input_fixate_hook_slot;
+};
+
+static void process_input_volume_change(pa_cvolume *dest_volume, const pa_cvolume *dest_virtual_volume, pa_channel_map *dest_channel_map,
+ pa_sink_input *this, pa_sink *sink) {
+ pa_sink_input *i;
+ uint32_t idx;
+ pa_cvolume max_volume, sink_volume;
+
+ pa_assert(dest_volume);
+ pa_assert(dest_virtual_volume);
+ pa_assert(dest_channel_map);
+ pa_assert(sink);
+
+ pa_log_debug("Sink input volume changed");
+
+ max_volume = *dest_virtual_volume;
+ pa_cvolume_remap(&max_volume, dest_channel_map, &sink->channel_map);
+
+ for (i = PA_SINK_INPUT(pa_idxset_first(sink->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(sink->inputs, &idx))) {
+ /* skip this sink-input if we are processing a volume change request */
+ if (this && this == i)
+ continue;
+
+ if (pa_cvolume_avg(&i->virtual_volume) > pa_cvolume_avg(&max_volume)) {
+ max_volume = i->virtual_volume;
+ pa_cvolume_remap(&max_volume, &i->channel_map, &sink->channel_map);
+ }
+ }
+
+ /* Set the master volume, and normalize inputs */
+ if (!pa_cvolume_equal(&max_volume, &sink->volume)) {
+ /* copied from pa_sink_set_volume(): need to call from here to avoid sink hooks */
+ /* alternatively, could create an extra function pa_sink_set_volume_full()? */
+ sink->volume = max_volume;
+ if (sink->set_volume && sink->set_volume(sink) < 0)
+ sink->set_volume = NULL;
+
+ if (!sink->set_volume)
+ pa_sink_set_soft_volume(sink, &max_volume);
+
+ pa_subscription_post(sink->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, sink->index);
+
+ pa_log_debug("sink = %.2f (changed)", (double)pa_cvolume_avg(&sink->volume)/PA_VOLUME_NORM);
+
+ /* Now, normalize each of the internal volume (client sink-input volume / sink master volume) */
+ for (i = PA_SINK_INPUT(pa_idxset_first(sink->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(sink->inputs, &idx))) {
+ /* skip this sink-input if we are processing a volume change request */
+ if (this && this == i)
+ continue;
+
+ sink_volume = max_volume;
+ pa_cvolume_remap(&sink_volume, &sink->channel_map, &i->channel_map);
+ pa_sw_cvolume_divide(&i->volume, &i->virtual_volume, &sink_volume);
+ pa_log_debug("sink input { id = %d, flat = %.2f, true = %.2f }",
+ i->index,
+ (double)pa_cvolume_avg(&i->virtual_volume)/PA_VOLUME_NORM,
+ (double)pa_cvolume_avg(&i->volume)/PA_VOLUME_NORM);
+ pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_VOLUME, pa_xnewdup(struct pa_cvolume, &i->volume, 1), 0, NULL, pa_xfree);
+ }
+ } else
+ pa_log_debug("sink = %.2f", (double)pa_cvolume_avg(&sink->volume)/PA_VOLUME_NORM);
+
+ /* and this one */
+ {
+ sink_volume = max_volume;
+ pa_cvolume_remap(&sink_volume, &sink->channel_map, dest_channel_map);
+ pa_sw_cvolume_divide(dest_volume, dest_virtual_volume, &sink_volume);
+ pa_log_debug("caller sink input: { id = %d, flat = %.2f, true = %.2f }",
+ this ? (int)this->index : -1,
+ (double)pa_cvolume_avg(dest_virtual_volume)/PA_VOLUME_NORM,
+ (double)pa_cvolume_avg(dest_volume)/PA_VOLUME_NORM);
+ }
+}
+
+static pa_hook_result_t sink_input_set_volume_hook_callback(pa_core *c, pa_sink_input_set_volume_data *this, struct userdata *u) {
+ pa_assert(this);
+ pa_assert(this->sink_input);
+
+ process_input_volume_change(&this->volume, &this->virtual_volume, &this->sink_input->channel_map,
+ this->sink_input, this->sink_input->sink);
+
+ return PA_HOOK_OK;
+}
+
+static pa_hook_result_t sink_input_fixate_hook_callback(pa_core *core, pa_sink_input_new_data *this, struct userdata *u) {
+ pa_assert(this);
+ pa_assert(this->sink);
+
+ process_input_volume_change(&this->volume, &this->virtual_volume, &this->channel_map,
+ NULL, this->sink);
+
+ return PA_HOOK_OK;
+}
+
+static void subscribe_callback(pa_core *core, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
+ struct userdata *u = userdata;
+ pa_sink *sink;
+ pa_sink_input *i;
+ uint32_t iidx;
+ pa_cvolume this_volume;
+
+ pa_assert(core);
+ pa_assert(u);
+
+ if (t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_NEW) &&
+ t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE))
+ return;
+
+ if (!(sink = pa_idxset_get_by_index(core->sinks, idx)))
+ return;
+
+ pa_log_debug("Sink volume changed");
+ pa_log_debug("sink = %.2f", (double)pa_cvolume_avg(pa_sink_get_volume(sink, FALSE)) / PA_VOLUME_NORM);
+
+ for (i = PA_SINK_INPUT(pa_idxset_first(sink->inputs, &iidx)); i; i = PA_SINK_INPUT(pa_idxset_next(sink->inputs, &iidx))) {
+ this_volume = *pa_sink_get_volume(sink, FALSE);
+ pa_cvolume_remap(&this_volume, &sink->channel_map, &i->channel_map);
+ pa_sw_cvolume_multiply(&i->virtual_volume, &i->volume, &this_volume);
+ pa_log_debug("sink input = { id = %d, flat = %.2f, true = %.2f }",
+ i->index,
+ (double)pa_cvolume_avg(&i->virtual_volume)/PA_VOLUME_NORM,
+ (double)pa_cvolume_avg(&i->volume)/PA_VOLUME_NORM);
+ pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
+ }
+}
+
+int pa__init(pa_module*m) {
+ struct userdata *u;
+
+ pa_assert(m);
+
+ u = pa_xnew(struct userdata, 1);
+ m->userdata = u;
+
+ u->sink_input_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_fixate_hook_callback, u);
+ u->sink_input_set_volume_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_SET_VOLUME], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_set_volume_hook_callback, u);
+
+ u->subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK, subscribe_callback, u);
+
+ return 0;
+}
+
+void pa__done(pa_module*m) {
+ struct userdata* u;
+
+ pa_assert(m);
+
+ if (!(u = m->userdata))
+ return;
+
+ if (u->subscription)
+ pa_subscription_free(u->subscription);
+
+ if (u->sink_input_set_volume_hook_slot)
+ pa_hook_slot_free(u->sink_input_set_volume_hook_slot);
+ if (u->sink_input_fixate_hook_slot)
+ pa_hook_slot_free(u->sink_input_fixate_hook_slot);
+
+ pa_xfree(u);
+}
projects / profile / ivi / pulseaudio-panda.git / commitdiff