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-rw-r--r--src/mixer/alsa_mixer_plugin.c275
-rw-r--r--src/mixer/oss_mixer_plugin.c2
-rw-r--r--src/mixer/pulse_mixer_plugin.c14
-rw-r--r--src/mixer/pulse_mixer_plugin.h2
-rw-r--r--src/mixer/roar_mixer_plugin.c104
-rw-r--r--src/mixer/software_mixer_plugin.c2
-rw-r--r--src/mixer/software_mixer_plugin.h2
-rw-r--r--src/mixer/winmm_mixer_plugin.c2
8 files changed, 350 insertions, 53 deletions
diff --git a/src/mixer/alsa_mixer_plugin.c b/src/mixer/alsa_mixer_plugin.c
index 38f36cb8f..22e4e22bd 100644
--- a/src/mixer/alsa_mixer_plugin.c
+++ b/src/mixer/alsa_mixer_plugin.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
@@ -20,6 +20,7 @@
#include "config.h"
#include "mixer_api.h"
#include "output_api.h"
+#include "event_pipe.h"
#include <glib.h>
#include <alsa/asoundlib.h>
@@ -28,6 +29,15 @@
#define VOLUME_MIXER_ALSA_CONTROL_DEFAULT "PCM"
#define VOLUME_MIXER_ALSA_INDEX_DEFAULT 0
+struct alsa_mixer_source {
+ GSource source;
+
+ snd_mixer_t *mixer;
+
+ /** a linked list of all registered GPollFD objects */
+ GSList *fds;
+};
+
struct alsa_mixer {
/** the base mixer class */
struct mixer base;
@@ -41,6 +51,8 @@ struct alsa_mixer {
long volume_min;
long volume_max;
int volume_set;
+
+ struct alsa_mixer_source *source;
};
/**
@@ -52,6 +64,161 @@ alsa_mixer_quark(void)
return g_quark_from_static_string("alsa_mixer");
}
+/*
+ * GSource helper functions
+ *
+ */
+
+static GSList **
+find_fd(GSList **list_r, int fd)
+{
+ while (true) {
+ GSList *list = *list_r;
+ if (list == NULL)
+ return NULL;
+
+ GPollFD *p = list->data;
+ if (p->fd == fd)
+ return list_r;
+
+ list_r = &list->next;
+ }
+}
+
+static void
+alsa_mixer_update_fd(struct alsa_mixer_source *source, const struct pollfd *p,
+ GSList **old_r)
+{
+ GSList **found_r = find_fd(old_r, p->fd);
+ if (found_r == NULL) {
+ /* new fd */
+ GPollFD *q = g_new(GPollFD, 1);
+ q->fd = p->fd;
+ q->events = p->events;
+ g_source_add_poll(&source->source, q);
+ source->fds = g_slist_prepend(source->fds, q);
+ return;
+ }
+
+ GSList *found = *found_r;
+ *found_r = found->next;
+
+ GPollFD *q = found->data;
+ if (q->events != p->events) {
+ /* refresh events */
+ g_source_remove_poll(&source->source, q);
+ q->events = p->events;
+ g_source_add_poll(&source->source, q);
+ }
+
+ found->next = source->fds;
+ source->fds = found;
+}
+
+static void
+alsa_mixer_update_fds(struct alsa_mixer_source *source)
+{
+ int count = snd_mixer_poll_descriptors_count(source->mixer);
+ if (count < 0)
+ count = 0;
+
+ struct pollfd *pfds = g_new(struct pollfd, count);
+ count = snd_mixer_poll_descriptors(source->mixer, pfds, count);
+ if (count < 0)
+ count = 0;
+
+ GSList *old = source->fds;
+ source->fds = NULL;
+
+ for (int i = 0; i < count; ++i)
+ alsa_mixer_update_fd(source, &pfds[i], &old);
+ g_free(pfds);
+
+ for (; old != NULL; old = old->next) {
+ GPollFD *q = old->data;
+ g_source_remove_poll(&source->source, q);
+ g_free(q);
+ }
+
+ g_slist_free(old);
+}
+
+/*
+ * GSource methods
+ *
+ */
+
+static gboolean
+alsa_mixer_source_prepare(GSource *_source, G_GNUC_UNUSED gint *timeout_r)
+{
+ struct alsa_mixer_source *source = (struct alsa_mixer_source *)_source;
+ alsa_mixer_update_fds(source);
+
+ return false;
+}
+
+static gboolean
+alsa_mixer_source_check(GSource *_source)
+{
+ struct alsa_mixer_source *source = (struct alsa_mixer_source *)_source;
+
+ for (const GSList *i = source->fds; i != NULL; i = i->next) {
+ const GPollFD *poll_fd = i->data;
+ if (poll_fd->revents != 0)
+ return true;
+ }
+
+ return false;
+}
+
+static gboolean
+alsa_mixer_source_dispatch(GSource *_source,
+ G_GNUC_UNUSED GSourceFunc callback,
+ G_GNUC_UNUSED gpointer user_data)
+{
+ struct alsa_mixer_source *source = (struct alsa_mixer_source *)_source;
+
+ snd_mixer_handle_events(source->mixer);
+ return true;
+}
+
+static void
+alsa_mixer_source_finalize(GSource *_source)
+{
+ struct alsa_mixer_source *source = (struct alsa_mixer_source *)_source;
+
+ for (GSList *i = source->fds; i != NULL; i = i->next)
+ g_free(i->data);
+
+ g_slist_free(source->fds);
+}
+
+static GSourceFuncs alsa_mixer_source_funcs = {
+ .prepare = alsa_mixer_source_prepare,
+ .check = alsa_mixer_source_check,
+ .dispatch = alsa_mixer_source_dispatch,
+ .finalize = alsa_mixer_source_finalize,
+};
+
+/*
+ * libasound callbacks
+ *
+ */
+
+static int
+alsa_mixer_elem_callback(G_GNUC_UNUSED snd_mixer_elem_t *elem, unsigned mask)
+{
+ if (mask & SND_CTL_EVENT_MASK_VALUE)
+ event_pipe_emit(PIPE_EVENT_MIXER);
+
+ return 0;
+}
+
+/*
+ * mixer_plugin methods
+ *
+ */
+
static struct mixer *
alsa_mixer_init(G_GNUC_UNUSED void *ao, const struct config_param *param,
G_GNUC_UNUSED GError **error_r)
@@ -81,34 +248,28 @@ alsa_mixer_finish(struct mixer *data)
snd_config_update_free_global();
}
-static void
-alsa_mixer_close(struct mixer *data)
+G_GNUC_PURE
+static snd_mixer_elem_t *
+alsa_mixer_lookup_elem(snd_mixer_t *handle, const char *name, unsigned idx)
{
- struct alsa_mixer *am = (struct alsa_mixer *)data;
-
- assert(am->handle != NULL);
+ for (snd_mixer_elem_t *elem = snd_mixer_first_elem(handle);
+ elem != NULL; elem = snd_mixer_elem_next(elem)) {
+ if (snd_mixer_elem_get_type(elem) == SND_MIXER_ELEM_SIMPLE &&
+ g_ascii_strcasecmp(snd_mixer_selem_get_name(elem),
+ name) == 0 &&
+ snd_mixer_selem_get_index(elem) == idx)
+ return elem;
+ }
- snd_mixer_close(am->handle);
+ return NULL;
}
static bool
-alsa_mixer_open(struct mixer *data, GError **error_r)
+alsa_mixer_setup(struct alsa_mixer *am, GError **error_r)
{
- struct alsa_mixer *am = (struct alsa_mixer *)data;
int err;
- snd_mixer_elem_t *elem;
-
- am->volume_set = -1;
-
- err = snd_mixer_open(&am->handle, 0);
- if (err < 0) {
- g_set_error(error_r, alsa_mixer_quark(), err,
- "snd_mixer_open() failed: %s", snd_strerror(err));
- return false;
- }
if ((err = snd_mixer_attach(am->handle, am->device)) < 0) {
- alsa_mixer_close(data);
g_set_error(error_r, alsa_mixer_quark(), err,
"failed to attach to %s: %s",
am->device, snd_strerror(err));
@@ -117,7 +278,6 @@ alsa_mixer_open(struct mixer *data, GError **error_r)
if ((err = snd_mixer_selem_register(am->handle, NULL,
NULL)) < 0) {
- alsa_mixer_close(data);
g_set_error(error_r, alsa_mixer_quark(), err,
"snd_mixer_selem_register() failed: %s",
snd_strerror(err));
@@ -125,38 +285,69 @@ alsa_mixer_open(struct mixer *data, GError **error_r)
}
if ((err = snd_mixer_load(am->handle)) < 0) {
- alsa_mixer_close(data);
g_set_error(error_r, alsa_mixer_quark(), err,
"snd_mixer_load() failed: %s\n",
snd_strerror(err));
return false;
}
- elem = snd_mixer_first_elem(am->handle);
+ am->elem = alsa_mixer_lookup_elem(am->handle, am->control, am->index);
+ if (am->elem == NULL) {
+ g_set_error(error_r, alsa_mixer_quark(), 0,
+ "no such mixer control: %s", am->control);
+ return false;
+ }
+
+ snd_mixer_selem_get_playback_volume_range(am->elem,
+ &am->volume_min,
+ &am->volume_max);
+
+ snd_mixer_elem_set_callback(am->elem, alsa_mixer_elem_callback);
- while (elem) {
- if (snd_mixer_elem_get_type(elem) == SND_MIXER_ELEM_SIMPLE) {
- if ((g_ascii_strcasecmp(am->control,
- snd_mixer_selem_get_name(elem)) == 0) &&
- (am->index == snd_mixer_selem_get_index(elem))) {
- break;
- }
- }
- elem = snd_mixer_elem_next(elem);
+ am->source = (struct alsa_mixer_source *)
+ g_source_new(&alsa_mixer_source_funcs, sizeof(*am->source));
+ am->source->mixer = am->handle;
+ am->source->fds = NULL;
+ g_source_attach(&am->source->source, g_main_context_default());
+
+ return true;
+}
+
+static bool
+alsa_mixer_open(struct mixer *data, GError **error_r)
+{
+ struct alsa_mixer *am = (struct alsa_mixer *)data;
+ int err;
+
+ am->volume_set = -1;
+
+ err = snd_mixer_open(&am->handle, 0);
+ if (err < 0) {
+ g_set_error(error_r, alsa_mixer_quark(), err,
+ "snd_mixer_open() failed: %s", snd_strerror(err));
+ return false;
}
- if (elem) {
- am->elem = elem;
- snd_mixer_selem_get_playback_volume_range(am->elem,
- &am->volume_min,
- &am->volume_max);
- return true;
+ if (!alsa_mixer_setup(am, error_r)) {
+ snd_mixer_close(am->handle);
+ return false;
}
- alsa_mixer_close(data);
- g_set_error(error_r, alsa_mixer_quark(), 0,
- "no such mixer control: %s", am->control);
- return false;
+ return true;
+}
+
+static void
+alsa_mixer_close(struct mixer *data)
+{
+ struct alsa_mixer *am = (struct alsa_mixer *)data;
+
+ assert(am->handle != NULL);
+
+ g_source_destroy(&am->source->source);
+ g_source_unref(&am->source->source);
+
+ snd_mixer_elem_set_callback(am->elem, NULL);
+ snd_mixer_close(am->handle);
}
static int
diff --git a/src/mixer/oss_mixer_plugin.c b/src/mixer/oss_mixer_plugin.c
index 418068ac2..608f1f9b8 100644
--- a/src/mixer/oss_mixer_plugin.c
+++ b/src/mixer/oss_mixer_plugin.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
diff --git a/src/mixer/pulse_mixer_plugin.c b/src/mixer/pulse_mixer_plugin.c
index 2be0b8266..a82c032b3 100644
--- a/src/mixer/pulse_mixer_plugin.c
+++ b/src/mixer/pulse_mixer_plugin.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
@@ -191,13 +191,13 @@ pulse_mixer_get_volume(struct mixer *mixer, G_GNUC_UNUSED GError **error_r)
struct pulse_mixer *pm = (struct pulse_mixer *) mixer;
int ret;
- pa_threaded_mainloop_lock(pm->output->mainloop);
+ pulse_output_lock(pm->output);
ret = pm->online
? (int)((100*(pa_cvolume_avg(&pm->volume)+1))/PA_VOLUME_NORM)
: -1;
- pa_threaded_mainloop_unlock(pm->output->mainloop);
+ pulse_output_unlock(pm->output);
return ret;
}
@@ -209,9 +209,10 @@ pulse_mixer_set_volume(struct mixer *mixer, unsigned volume, GError **error_r)
struct pa_cvolume cvolume;
bool success;
- pa_threaded_mainloop_lock(pm->output->mainloop);
+ pulse_output_lock(pm->output);
+
if (!pm->online) {
- pa_threaded_mainloop_unlock(pm->output->mainloop);
+ pulse_output_unlock(pm->output);
g_set_error(error_r, pulse_mixer_quark(), 0, "disconnected");
return false;
}
@@ -221,7 +222,8 @@ pulse_mixer_set_volume(struct mixer *mixer, unsigned volume, GError **error_r)
success = pulse_output_set_volume(pm->output, &cvolume, error_r);
if (success)
pm->volume = cvolume;
- pa_threaded_mainloop_unlock(pm->output->mainloop);
+
+ pulse_output_unlock(pm->output);
return success;
}
diff --git a/src/mixer/pulse_mixer_plugin.h b/src/mixer/pulse_mixer_plugin.h
index be199f688..461633d37 100644
--- a/src/mixer/pulse_mixer_plugin.h
+++ b/src/mixer/pulse_mixer_plugin.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
diff --git a/src/mixer/roar_mixer_plugin.c b/src/mixer/roar_mixer_plugin.c
new file mode 100644
index 000000000..47d3c17f9
--- /dev/null
+++ b/src/mixer/roar_mixer_plugin.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2010-2011 Philipp 'ph3-der-loewe' Schafft
+ * Copyright (C) 2010-2011 Hans-Kristian 'maister' Arntzen
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+
+#include "config.h"
+#include "mixer_api.h"
+#include "output_api.h"
+#include "output/roar_output_plugin.h"
+
+#include <glib.h>
+
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+typedef struct roar_mpd_mixer
+{
+ /** the base mixer class */
+ struct mixer base;
+ struct roar *self;
+} roar_mixer_t;
+
+/**
+ * The quark used for GError.domain.
+ */
+static inline GQuark
+roar_mixer_quark(void)
+{
+ return g_quark_from_static_string("roar_mixer");
+}
+
+static struct mixer *
+roar_mixer_init(void *ao, G_GNUC_UNUSED const struct config_param *param,
+ G_GNUC_UNUSED GError **error_r)
+{
+ roar_mixer_t *self = g_new(roar_mixer_t, 1);
+ self->self = ao;
+
+ mixer_init(&self->base, &roar_mixer_plugin);
+
+ return &self->base;
+}
+
+static void
+roar_mixer_finish(struct mixer *data)
+{
+ roar_mixer_t *self = (roar_mixer_t *) data;
+
+ g_free(self);
+}
+
+static void
+roar_mixer_close(G_GNUC_UNUSED struct mixer *data)
+{
+}
+
+static bool
+roar_mixer_open(G_GNUC_UNUSED struct mixer *data,
+ G_GNUC_UNUSED GError **error_r)
+{
+ return true;
+}
+
+static int
+roar_mixer_get_volume(struct mixer *mixer, G_GNUC_UNUSED GError **error_r)
+{
+ roar_mixer_t *self = (roar_mixer_t *)mixer;
+ return roar_output_get_volume(self->self);
+}
+
+static bool
+roar_mixer_set_volume(struct mixer *mixer, unsigned volume,
+ G_GNUC_UNUSED GError **error_r)
+{
+ roar_mixer_t *self = (roar_mixer_t *)mixer;
+ return roar_output_set_volume(self->self, volume);
+}
+
+const struct mixer_plugin roar_mixer_plugin = {
+ .init = roar_mixer_init,
+ .finish = roar_mixer_finish,
+ .open = roar_mixer_open,
+ .close = roar_mixer_close,
+ .get_volume = roar_mixer_get_volume,
+ .set_volume = roar_mixer_set_volume,
+ .global = false,
+};
diff --git a/src/mixer/software_mixer_plugin.c b/src/mixer/software_mixer_plugin.c
index 93802e977..0206c3b99 100644
--- a/src/mixer/software_mixer_plugin.c
+++ b/src/mixer/software_mixer_plugin.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
diff --git a/src/mixer/software_mixer_plugin.h b/src/mixer/software_mixer_plugin.h
index 3bd07ac62..ee2b2023c 100644
--- a/src/mixer/software_mixer_plugin.h
+++ b/src/mixer/software_mixer_plugin.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
diff --git a/src/mixer/winmm_mixer_plugin.c b/src/mixer/winmm_mixer_plugin.c
index 5ab3e7525..ceddf6afd 100644
--- a/src/mixer/winmm_mixer_plugin.c
+++ b/src/mixer/winmm_mixer_plugin.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 22:14:07 +0000