Add ALSA, improve OSS and remove OSS4

1 files changed, 0 insertions, 487 deletions

diff --git a/backends/oss4/oss4-backend.c b/backends/oss4/oss4-backend.c
deleted file mode 100644
index bd79fdf..0000000
--- a/backends/oss4/oss4-backend.c
+++ /dev/null
@@ -1,487 +0,0 @@
-/*
- * Copyright (C) 2014 Michal Ratajsky <[email protected]>
- *
- * This library 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 licence, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <glib.h>
-#include <glib-object.h>
-#include <glib/gstdio.h>
-#include <glib/gprintf.h>
-#include <glib/gi18n.h>
-#include <gio/gio.h>
-
-#include <libmatemixer/matemixer-backend.h>
-#include <libmatemixer/matemixer-backend-module.h>
-#include <libmatemixer/matemixer-enums.h>
-#include <libmatemixer/matemixer-stream.h>
-
-#include "oss4-backend.h"
-#include "oss4-common.h"
-#include "oss4-device.h"
-
-#define BACKEND_NAME      "OSS4"
-#define BACKEND_PRIORITY  8
-
-#define PATH_SNDSTAT      "/dev/sndstat"
-
-struct _Oss4BackendPrivate
-{
-    gint fd;
-    gchar           *sndstat;
-    GHashTable      *devices;
-    GHashTable      *streams;
-    MateMixerStream *default_input;
-    MateMixerStream *default_output;
-    MateMixerState   state;
-};
-
-enum {
-    PROP_0,
-    PROP_STATE,
-    PROP_DEFAULT_INPUT,
-    PROP_DEFAULT_OUTPUT
-};
-
-static void mate_mixer_backend_interface_init (MateMixerBackendInterface *iface);
-
-static void oss4_backend_class_init     (Oss4BackendClass *klass);
-static void oss4_backend_class_finalize (Oss4BackendClass *klass);
-
-static void oss4_backend_get_property   (GObject         *object,
-                                         guint            param_id,
-                                         GValue          *value,
-                                         GParamSpec      *pspec);
-
-static void oss4_backend_init           (Oss4Backend     *oss);
-static void oss4_backend_dispose        (GObject         *object);
-static void oss4_backend_finalize       (GObject         *object);
-
-G_DEFINE_DYNAMIC_TYPE_EXTENDED (Oss4Backend, oss4_backend,
-                                G_TYPE_OBJECT, 0,
-                                G_IMPLEMENT_INTERFACE_DYNAMIC (MATE_MIXER_TYPE_BACKEND,
-                                                               mate_mixer_backend_interface_init))
-
-static gboolean oss4_backend_open         (MateMixerBackend  *backend);
-static void     oss4_backend_close        (MateMixerBackend  *backend);
-static GList *  oss4_backend_list_devices (MateMixerBackend  *backend);
-static GList *  oss4_backend_list_streams (MateMixerBackend  *backend);
-
-static void     change_state                    (Oss4Backend       *oss,
-                                                 MateMixerState     state);
-
-static gboolean read_device (Oss4Backend *oss, gint index);
-
-static gchar *  read_device_sndstat_description (Oss4Backend *oss,
-                                                 const gchar *prefix);
-
-static void     add_device      (Oss4Backend *oss, Oss4Device *device);
-static void     remove_device   (Oss4Backend *oss, Oss4Device *device);
-
-static MateMixerBackendInfo info;
-
-void
-backend_module_init (GTypeModule *module)
-{
-    oss4_backend_register_type (module);
-
-    info.name         = BACKEND_NAME;
-    info.priority     = BACKEND_PRIORITY;
-    info.g_type       = OSS4_TYPE_BACKEND;
-    info.backend_type = MATE_MIXER_BACKEND_OSS4;
-}
-
-const MateMixerBackendInfo *backend_module_get_info (void)
-{
-    return &info;
-}
-
-static void
-mate_mixer_backend_interface_init (MateMixerBackendInterface *iface)
-{
-    iface->open         = oss4_backend_open;
-    iface->close        = oss4_backend_close;
-    iface->list_devices = oss4_backend_list_devices;
-    iface->list_streams = oss4_backend_list_streams;
-}
-
-static void
-oss4_backend_class_init (Oss4BackendClass *klass)
-{
-    GObjectClass *object_class;
-
-    object_class = G_OBJECT_CLASS (klass);
-    object_class->dispose      = oss4_backend_dispose;
-    object_class->finalize     = oss4_backend_finalize;
-    object_class->get_property = oss4_backend_get_property;
-
-    g_object_class_override_property (object_class, PROP_STATE, "state");
-    g_object_class_override_property (object_class, PROP_DEFAULT_INPUT, "default-input");
-    g_object_class_override_property (object_class, PROP_DEFAULT_OUTPUT, "default-output");
-
-    g_type_class_add_private (object_class, sizeof (Oss4BackendPrivate));
-}
-
-/* Called in the code generated by G_DEFINE_DYNAMIC_TYPE_EXTENDED() */
-static void
-oss4_backend_class_finalize (Oss4BackendClass *klass)
-{
-}
-
-static void
-oss4_backend_get_property (GObject    *object,
-                           guint       param_id,
-                           GValue     *value,
-                           GParamSpec *pspec)
-{
-    Oss4Backend *oss;
-
-    oss = OSS4_BACKEND (object);
-
-    switch (param_id) {
-    case PROP_STATE:
-        g_value_set_enum (value, oss->priv->state);
-        break;
-    case PROP_DEFAULT_INPUT:
-        g_value_set_object (value, oss->priv->default_input);
-        break;
-    case PROP_DEFAULT_OUTPUT:
-        g_value_set_object (value, oss->priv->default_output);
-        break;
-        break;
-    default:
-        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
-        break;
-    }
-}
-
-static void
-oss4_backend_init (Oss4Backend *oss)
-{
-    oss->priv = G_TYPE_INSTANCE_GET_PRIVATE (oss,
-                                             OSS4_TYPE_BACKEND,
-                                             Oss4BackendPrivate);
-
-    oss->priv->devices = g_hash_table_new_full (g_direct_hash,
-                                                g_direct_equal,
-                                                NULL,
-                                                g_object_unref);
-
-    oss->priv->streams = g_hash_table_new_full (g_str_hash,
-                                                g_str_equal,
-                                                g_free,
-                                                g_object_unref);
-}
-
-static void
-oss4_backend_dispose (GObject *object)
-{
-    oss4_backend_close (MATE_MIXER_BACKEND (object));
-}
-
-static void
-oss4_backend_finalize (GObject *object)
-{
-    Oss4Backend *oss;
-
-    oss = OSS4_BACKEND (object);
-
-    g_hash_table_destroy (oss->priv->devices);
-    g_hash_table_destroy (oss->priv->streams);
-}
-
-static gboolean
-oss4_backend_open (MateMixerBackend *backend)
-{
-    Oss4Backend       *oss;
-    gint               fd;
-    gint               i;
-    gint               ret;
-    struct oss_sysinfo info;
-
-    g_return_val_if_fail (OSS4_IS_BACKEND (backend), FALSE);
-
-    oss = OSS4_BACKEND (backend);
-
-    fd = g_open ("/dev/mixer", O_RDONLY, 0);
-    if (fd == -1)
-        fd = g_open ("/dev/mixer0", O_RDONLY, 0);
-    if (fd == -1) {
-        change_state (oss, MATE_MIXER_STATE_FAILED);
-        return FALSE;
-    }
-
-    /* Query the number of mixer devices */
-    ret = ioctl (fd, OSS_SYSINFO, &info);
-    if (ret == -1) {
-        close (fd);
-        change_state (oss, MATE_MIXER_STATE_FAILED);
-        return FALSE;
-    }
-
-    g_debug ("The sound system is %s version %s",
-             info.product,
-             info.version);
-
-#if !defined(__linux__)
-    /* At least on systems based on FreeBSD we will need to read devices names
-     * from the sndstat file, but avoid even trying that on systems where this
-     * is not needed and the file is not present */
-    oss->priv->sndstat = PATH_SNDSTAT;
-#endif
-
-    oss->priv->fd = fd;
-
-    for (i = 0; i < info.nummixers; i++)
-        read_device (oss, i);
-
-    change_state (oss, MATE_MIXER_STATE_READY);
-    return TRUE;
-}
-
-void
-oss4_backend_close (MateMixerBackend *backend)
-{
-    Oss4Backend *oss;
-
-    g_return_if_fail (OSS4_IS_BACKEND (backend));
-
-    oss = OSS4_BACKEND (backend);
-
-    g_clear_object (&oss->priv->default_input);
-    g_clear_object (&oss->priv->default_output);
-
-    g_hash_table_remove_all (oss->priv->streams);
-    g_hash_table_remove_all (oss->priv->devices);
-}
-
-static GList *
-oss4_backend_list_devices (MateMixerBackend *backend)
-{
-    GList *list;
-
-    g_return_val_if_fail (OSS4_IS_BACKEND (backend), NULL);
-
-    /* Convert the hash table to a sorted linked list, this list is expected
-     * to be cached in the main library */
-    list = g_hash_table_get_values (OSS4_BACKEND (backend)->priv->devices);
-    if (list != NULL) {
-        g_list_foreach (list, (GFunc) g_object_ref, NULL);
-
-        return list;
-    }
-    return NULL;
-}
-
-static GList *
-oss4_backend_list_streams (MateMixerBackend *backend)
-{
-    GList *list;
-
-    g_return_val_if_fail (OSS4_IS_BACKEND (backend), NULL);
-
-    /* Convert the hash table to a sorted linked list, this list is expected
-     * to be cached in the main library */
-    list = g_hash_table_get_values (OSS4_BACKEND (backend)->priv->streams);
-    if (list != NULL) {
-        g_list_foreach (list, (GFunc) g_object_ref, NULL);
-
-        return list;
-    }
-    return NULL;
-}
-
-static void
-change_state (Oss4Backend *oss, MateMixerState state)
-{
-    if (oss->priv->state == state)
-        return;
-
-    oss->priv->state = state;
-
-    g_object_notify (G_OBJECT (oss), "state");
-}
-
-static gboolean
-read_device (Oss4Backend *oss, gint index)
-{
-    Oss4Device          *device;
-    gboolean             ret;
-    gchar               *description = NULL;
-    struct oss_mixerinfo info;
-
-    /* We assume that the name and capabilities of a device do not change */
-    device = g_hash_table_lookup (oss->priv->devices, GINT_TO_POINTER (index));
-    if (G_UNLIKELY (device != NULL)) {
-        g_debug ("Attempt to re-read already know device with index %d", index);
-        return TRUE;
-    }
-
-    info.dev = index;
-    ret = ioctl (oss->priv->fd, SNDCTL_MIXERINFO, &info);
-    if (ret == -1) {
-        g_debug ("Failed to read mixer info: %s", g_strerror (errno));
-        return FALSE;
-    }
-
-    if (info.enabled == 0)
-        return TRUE;
-
-    /* Use the id as the device name and try to figure out the name of the
-     * sound card from the sndstat file if it is available, otherwise use
-     * the name from the mixer info */
-    if (oss->priv->sndstat != NULL &&
-        g_str_has_prefix (info.name, "pcm") == TRUE)
-        description = read_device_sndstat_description (oss, info.name);
-
-    if (description == NULL)
-        description = g_strdup (info.name);
-
-    device = oss4_device_new (info.id, description, oss->priv->fd, index);
-
-    ret = oss4_device_read (device);
-    if (ret == TRUE)
-        add_device (oss, device);
-
-    g_object_unref (device);
-    g_free (description);
-
-    return ret;
-}
-
-static gchar *
-read_device_sndstat_description (Oss4Backend *oss, const gchar *prefix)
-{
-    FILE  *fp;
-    gchar  line[256];
-    gchar *description = NULL;
-
-    g_debug ("reading prefix %s", prefix);
-
-    fp = fopen (oss->priv->sndstat, "r");
-    if (fp == NULL) {
-        g_warning ("Failed to read %s: %s", oss->priv->sndstat, g_strerror (errno));
-        return FALSE;
-    }
-
-    while (fgets (line, sizeof (line), fp) != NULL) {
-        gchar *p;
-
-        if (g_str_has_prefix (line, prefix) == FALSE)
-            continue;
-
-        /* Example line:
-         * pcm0: <ATI R6xx (HDMI)> (play) default */
-        p = strchr (line, '<');
-        if (p != NULL && *p && *(++p)) {
-            gchar *end = strchr (p, '>');
-
-            if (end != NULL)
-                description = g_strndup (p, end - p);
-        }
-
-        // XXX we can also read "default" at the end of the line
-        // XXX http://ashish.is.lostca.se/2011/05/23/default-sound-device-in-freebsd/
-        if (g_str_has_suffix (line, "default") ||
-            g_str_has_suffix (line, "default)"))
-            ;
-
-        if (description != NULL)
-            break;
-    }
-
-    fclose (fp);
-    return description;
-}
-
-static void
-add_device (Oss4Backend *oss, Oss4Device *device)
-{
-    MateMixerStream *stream;
-
-    /* Add device, file path is used as the key rather than the name, because
-     * the name is not known until an OssDevice instance is created */
-    g_hash_table_insert (oss->priv->devices,
-                         GINT_TO_POINTER (oss4_device_get_index (device)),
-                         g_object_ref (device));
-
-    g_signal_emit_by_name (G_OBJECT (oss),
-                           "device-added",
-                           mate_mixer_device_get_name (MATE_MIXER_DEVICE (device)));
-
-    /* Add streams if they exist */
-    stream = oss4_device_get_input_stream (device);
-    if (stream != NULL) {
-        g_hash_table_insert (oss->priv->streams,
-                             g_strdup (mate_mixer_stream_get_name (stream)),
-                             g_object_ref (stream));
-
-        g_signal_emit_by_name (G_OBJECT (oss),
-                               "stream-added",
-                               mate_mixer_stream_get_name (stream));
-    }
-
-    stream = oss4_device_get_output_stream (device);
-    if (stream != NULL) {
-        g_hash_table_insert (oss->priv->streams,
-                             g_strdup (mate_mixer_stream_get_name (stream)),
-                             g_object_ref (stream));
-
-        g_signal_emit_by_name (G_OBJECT (oss),
-                               "stream-added",
-                               mate_mixer_stream_get_name (stream));
-    }
-}
-
-static void
-remove_device (Oss4Backend *oss, Oss4Device *device)
-{
-    MateMixerStream *stream;
-
-    /* Remove the device streams first as they are a part of the device */
-    stream = oss4_device_get_input_stream (device);
-    if (stream != NULL) {
-        const gchar *name = mate_mixer_stream_get_name (stream);
-
-        g_hash_table_remove (oss->priv->streams, name);
-        g_signal_emit_by_name (G_OBJECT (oss),
-                               "stream-removed",
-                               name);
-    }
-
-    stream = oss4_device_get_output_stream (device);
-    if (stream != NULL) {
-        const gchar *name = mate_mixer_stream_get_name (stream);
-
-        g_hash_table_remove (oss->priv->streams, stream);
-        g_signal_emit_by_name (G_OBJECT (oss),
-                               "stream-removed",
-                               name);
-    }
-
-    /* Remove the device */
-    g_object_ref (device);
-
-    g_hash_table_remove (oss->priv->devices,
-                         GINT_TO_POINTER (oss4_device_get_index (device)));
-
-    g_signal_emit_by_name (G_OBJECT (oss),
-                           "device-removed",
-                           mate_mixer_device_get_name (MATE_MIXER_DEVICE (device)));
-
-    g_object_unref (device);
-}