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372 lines
10 KiB
C
372 lines
10 KiB
C
/*
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* mks-speaker.c
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*
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* Copyright 2023 Christian Hergert <chergert@redhat.com>
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of the
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* License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#include "config.h"
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#include <glib/gstdio.h>
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#include "mks-device-private.h"
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#include "mks-qemu.h"
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#include "mks-speaker.h"
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#include "mks-util-private.h"
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/**
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* MksSpeaker:
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*
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* A virtualized QEMU speaker.
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*/
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struct _MksSpeaker
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{
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MksDevice parent_instance;
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MksQemuAudio *audio;
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MksQemuAudioOutListener *listener;
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GDBusConnection *connection;
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guint muted : 1;
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};
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struct _MksSpeakerClass
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{
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MksDeviceClass parent_class;
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};
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G_DEFINE_FINAL_TYPE (MksSpeaker, mks_speaker, MKS_TYPE_DEVICE)
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enum {
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PROP_0,
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PROP_MUTED,
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N_PROPS
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};
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static GParamSpec *properties [N_PROPS];
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static gboolean
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mks_speaker_handle_init (MksSpeaker *self,
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GDBusMethodInvocation *invocation,
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guint64 id,
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guchar bits,
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gboolean is_signed,
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gboolean is_float,
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guint freq,
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guchar nchannels,
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guint bytes_per_frame,
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guint bytes_per_second,
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gboolean be)
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{
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MKS_ENTRY;
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g_assert (MKS_IS_SPEAKER (self));
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g_assert (G_IS_DBUS_METHOD_INVOCATION (invocation));
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MKS_RETURN (FALSE);
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}
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static gboolean
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mks_speaker_handle_fini (MksSpeaker *self,
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GDBusMethodInvocation *invocation,
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guint64 id)
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{
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MKS_ENTRY;
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g_assert (MKS_IS_SPEAKER (self));
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g_assert (G_IS_DBUS_METHOD_INVOCATION (invocation));
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MKS_RETURN (FALSE);
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}
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static gboolean
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mks_speaker_handle_set_enabled (MksSpeaker *self,
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GDBusMethodInvocation *invocation,
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guint64 id,
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gboolean enbled)
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{
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MKS_ENTRY;
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g_assert (MKS_IS_SPEAKER (self));
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g_assert (G_IS_DBUS_METHOD_INVOCATION (invocation));
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MKS_RETURN (FALSE);
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}
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static gboolean
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mks_speaker_handle_set_volume (MksSpeaker *self,
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GDBusMethodInvocation *invocation,
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guint64 id,
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gboolean mute,
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GVariant *volume)
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{
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MKS_ENTRY;
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g_assert (MKS_IS_SPEAKER (self));
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g_assert (G_IS_DBUS_METHOD_INVOCATION (invocation));
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MKS_RETURN (FALSE);
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}
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static gboolean
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mks_speaker_handle_write (MksSpeaker *self,
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GDBusMethodInvocation *invocation,
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guint64 id,
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GVariant *data)
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{
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MKS_ENTRY;
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g_assert (MKS_IS_SPEAKER (self));
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g_assert (G_IS_DBUS_METHOD_INVOCATION (invocation));
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MKS_RETURN (FALSE);
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}
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static void
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mks_speaker_register_cb (GObject *object,
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GAsyncResult *result,
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gpointer user_data)
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{
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MksQemuAudio *audio = (MksQemuAudio *)object;
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g_autoptr(MksSpeaker) self = user_data;
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g_autoptr(GError) error = NULL;
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g_assert (MKS_QEMU_IS_AUDIO (audio));
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g_assert (G_IS_ASYNC_RESULT (result));
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g_assert (MKS_IS_SPEAKER (self));
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if (!mks_qemu_audio_call_register_out_listener_finish (audio, NULL, result, &error))
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g_warning ("Failed to register audio out listener: %s", error->message);
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}
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static void
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mks_speaker_connection_cb (GObject *object,
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GAsyncResult *result,
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gpointer user_data)
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{
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g_autoptr(GDBusConnection) connection = NULL;
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g_autoptr(MksSpeaker) self = user_data;
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g_autoptr(GUnixFDList) fd_list = NULL;
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g_autoptr(GError) error = NULL;
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g_autofd int peer_fd = -1;
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g_assert (G_IS_ASYNC_RESULT (result));
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g_assert (MKS_IS_SPEAKER (self));
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if (!(connection = mks_socketpair_connection_new_finish (result, &peer_fd, &error)))
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{
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g_warning ("Failed to create socketpair D-Bus connection: %s", error->message);
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return;
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}
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g_set_object (&self->connection, connection);
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self->listener = mks_qemu_audio_out_listener_skeleton_new ();
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g_signal_connect_object (self->listener,
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"handle-init",
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G_CALLBACK (mks_speaker_handle_init),
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self,
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G_CONNECT_SWAPPED);
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g_signal_connect_object (self->listener,
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"handle-fini",
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G_CALLBACK (mks_speaker_handle_fini),
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self,
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G_CONNECT_SWAPPED);
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g_signal_connect_object (self->listener,
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"handle-set-enabled",
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G_CALLBACK (mks_speaker_handle_set_enabled),
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self,
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G_CONNECT_SWAPPED);
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g_signal_connect_object (self->listener,
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"handle-set-volume",
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G_CALLBACK (mks_speaker_handle_set_volume),
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self,
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G_CONNECT_SWAPPED);
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g_signal_connect_object (self->listener,
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"handle-write",
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G_CALLBACK (mks_speaker_handle_write),
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self,
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G_CONNECT_SWAPPED);
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if (!g_dbus_interface_skeleton_export (G_DBUS_INTERFACE_SKELETON (self->listener),
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connection,
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"/org/qemu/Display1/AudioOutListener",
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&error))
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{
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g_warning ("Failed to export AudioOutListener on D-Bus connection: %s",
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error->message);
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return;
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}
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fd_list = g_unix_fd_list_new_from_array (&peer_fd, 1);
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peer_fd = -1;
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mks_qemu_audio_call_register_out_listener (self->audio,
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g_variant_new_handle (0),
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fd_list,
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NULL,
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mks_speaker_register_cb,
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g_object_ref (self));
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}
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static gboolean
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mks_speaker_setup (MksDevice *device,
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MksQemuObject *object)
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{
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MksSpeaker *self = (MksSpeaker *)object;
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g_assert (MKS_IS_SPEAKER (self));
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g_assert (MKS_QEMU_IS_OBJECT (object));
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if (MKS_QEMU_IS_AUDIO (object))
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{
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g_set_object (&self->audio, MKS_QEMU_AUDIO (object));
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mks_socketpair_connection_new (G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
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NULL,
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mks_speaker_connection_cb,
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g_object_ref (self));
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return TRUE;
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}
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return FALSE;
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}
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static void
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mks_speaker_dispose (GObject *object)
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{
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MksSpeaker *self = (MksSpeaker *)object;
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if (self->listener != NULL)
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{
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g_dbus_interface_skeleton_unexport (G_DBUS_INTERFACE_SKELETON (self->listener));
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g_clear_object (&self->listener);
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}
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g_clear_object (&self->connection);
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g_clear_object (&self->audio);
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G_OBJECT_CLASS (mks_speaker_parent_class)->dispose (object);
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}
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static void
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mks_speaker_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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MksSpeaker *self = MKS_SPEAKER (object);
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switch (prop_id)
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{
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case PROP_MUTED:
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g_value_set_boolean (value, mks_speaker_get_muted (self));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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mks_speaker_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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MksSpeaker *self = MKS_SPEAKER (object);
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switch (prop_id)
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{
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case PROP_MUTED:
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mks_speaker_set_muted (self, g_value_get_boolean (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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mks_speaker_class_init (MksSpeakerClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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MksDeviceClass *device_class = MKS_DEVICE_CLASS (klass);
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object_class->dispose = mks_speaker_dispose;
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object_class->get_property = mks_speaker_get_property;
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object_class->set_property = mks_speaker_set_property;
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device_class->setup = mks_speaker_setup;
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/**
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* MksSpeaker:muted:
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*
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* If audio received from the instance is dropped and
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* the remote sound device should attempt to be set as muted.
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*/
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properties [PROP_MUTED] =
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g_param_spec_boolean ("muted", NULL, NULL,
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FALSE,
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(G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
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g_object_class_install_properties (object_class, N_PROPS, properties);
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}
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static void
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mks_speaker_init (MksSpeaker *self)
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{
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}
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/**
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* mks_speaker_get_muted:
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* @self: a #MksSpeaker
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*
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* Gets if the speaker is muted.
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*
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* Returns: %TRUE if the #MksSpeaker is muted.
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*/
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gboolean
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mks_speaker_get_muted (MksSpeaker *self)
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{
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g_return_val_if_fail (MKS_IS_SPEAKER (self), FALSE);
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return self->muted;
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}
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/**
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* mks_speaker_set_muted:
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* @self: a #MksSpeaker
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* @muted: if the speaker should be muted
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*
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* Mute or un-mute the speaker.
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*/
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void
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mks_speaker_set_muted (MksSpeaker *self,
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gboolean muted)
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{
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g_return_if_fail (MKS_IS_SPEAKER (self));
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muted = !!muted;
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if (self->muted != muted)
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{
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self->muted = muted;
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g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_MUTED]);
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}
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}
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