Initial commit

1 files changed, 223 insertions, 0 deletions

diff --git a/ucad.c b/ucad.c
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index 0000000..de3d79b
--- /dev/null
+++ b/ucad.c
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+/* Copyright (C) 2011-2016 Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
+   (Karlsruhe Institute of Technology)
+
+   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 2.1 of the License, 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, write to the Free Software Foundation, Inc., 51
+   Franklin St, Fifth Floor, Boston, MA 02110, USA */
+
+#include <glib-object.h>
+#include <gio/gio.h>
+#include <string.h>
+#include <uca/uca-camera.h>
+#include <uca/uca-plugin-manager.h>
+#include "uca-net-protocol.h"
+
+static gchar *
+get_camera_list (UcaPluginManager *manager)
+{
+    GList *types;
+    GString *str;
+
+    manager = uca_plugin_manager_new ();
+    types = uca_plugin_manager_get_available_cameras (manager);
+    str = g_string_new ("[ ");
+
+    if (types != NULL) {
+        for (GList *it = g_list_first (types); it != NULL; it = g_list_next (it)) {
+            gchar *name = (gchar *) it->data;
+
+            if (g_list_next (it) == NULL)
+                g_string_append_printf (str, "%s ]", name);
+            else
+                g_string_append_printf (str, "%s, ", name);
+        }
+    }
+    else {
+        g_string_append (str, "]");
+    }
+
+    g_list_free_full (types, g_free);
+    g_object_unref (manager);
+    return g_string_free (str, FALSE);
+}
+
+static GOptionContext *
+uca_option_context_new (UcaPluginManager *manager)
+{
+    GOptionContext *context;
+    gchar *camera_list;
+
+    camera_list = get_camera_list (manager);
+    context = g_option_context_new (camera_list);
+    g_free (camera_list);
+    return context;
+}
+
+static void
+handle_get_property_request (gpointer user_data, const gchar *name, gchar *value)
+{
+    UcaCamera *camera;
+    GParamSpec *pspec;
+    GValue prop_value = {0};
+    GValue str_value = {0};
+
+    camera = user_data;
+    pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (camera), name);
+
+    g_value_init (&prop_value, g_type_is_a (pspec->value_type, G_TYPE_ENUM) ? G_TYPE_INT : pspec->value_type);
+    g_object_get_property (G_OBJECT (camera), name, &prop_value);
+
+    g_value_init (&str_value, G_TYPE_STRING);
+    g_value_transform (&prop_value, &str_value);
+
+    strncpy (value, g_value_get_string (&str_value), sizeof (g_value_get_string (&str_value)));
+}
+
+static void
+handle_set_property_request (gpointer user_data, const gchar *name, const gchar *value, GError **error)
+{
+    UcaCamera *camera;
+    GParamSpec *pspec;
+    GValue prop_value = {0};
+    GValue str_value = {0};
+
+    camera = user_data;
+    pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (camera), name);
+
+    g_value_init (&prop_value, g_type_is_a (pspec->value_type, G_TYPE_ENUM) ? G_TYPE_INT : pspec->value_type);
+    g_value_init (&str_value, G_TYPE_STRING);
+    g_value_set_string (&str_value, value);
+    g_value_transform (&str_value, &prop_value);
+
+    g_object_set_property (G_OBJECT (camera), name, &prop_value);
+}
+
+static void
+handle_start_recording_request (gpointer user_data, GError **error)
+{
+    uca_camera_start_recording (UCA_CAMERA (user_data), error);
+}
+
+static void
+handle_stop_recording_request (gpointer user_data, GError **error)
+{
+    uca_camera_stop_recording (UCA_CAMERA (user_data), error);
+}
+
+static gboolean
+handle_grab_request (gpointer data, gpointer user_data, GError **error)
+{
+    return uca_camera_grab (UCA_CAMERA (user_data), data, error);
+}
+
+static gboolean
+run_callback (GSocketService *service, GSocketConnection *connection, GObject *source, gpointer user_data)
+{
+    GInetSocketAddress *sock_address;
+    GInetAddress *address;
+    gchar *address_string;
+
+    UcaNetHandlers handlers = {
+        .user_data = user_data,
+        .get_property = handle_get_property_request,
+        .set_property = handle_set_property_request,
+        .start_recording = handle_start_recording_request,
+        .stop_recording = handle_stop_recording_request,
+        .grab = handle_grab_request,
+    };
+
+    sock_address = G_INET_SOCKET_ADDRESS (g_socket_connection_get_remote_address (connection, NULL));
+    address = g_inet_socket_address_get_address (sock_address);
+    address_string = g_inet_address_to_string (address);
+    g_message ("Connection accepted from %s:%u", address_string, g_inet_socket_address_get_port (sock_address));
+
+    g_free (address_string);
+    g_object_unref (sock_address);
+
+    uca_net_server_register_handlers (&handlers);
+    uca_net_server_handle (connection);
+    
+    return FALSE;
+}
+
+static void
+serve (UcaCamera *camera, GError **error)
+{
+    GMainLoop *loop;
+    GSocketService *service;
+
+    service = g_threaded_socket_service_new (1);
+
+    if (!g_socket_listener_add_inet_port (G_SOCKET_LISTENER (service), 8989, NULL, error))
+        return;
+
+    g_signal_connect (service, "run", G_CALLBACK (run_callback), camera);
+
+    loop = g_main_loop_new (NULL, TRUE);
+    g_main_loop_run (loop);
+}
+
+int
+main (int argc, char **argv)
+{
+    GOptionContext *context;
+    UcaPluginManager *manager;
+    UcaCamera *camera;
+    GError *error = NULL;
+
+    static GOptionEntry entries[] = { { NULL } };
+
+#if !(GLIB_CHECK_VERSION (2, 36, 0))
+    g_type_init();
+#endif
+
+    manager = uca_plugin_manager_new ();
+    context = uca_option_context_new (manager);
+    g_option_context_add_main_entries (context, entries, NULL);
+
+    if (!g_option_context_parse (context, &argc, &argv, &error)) {
+        g_print ("Failed parsing arguments: %s\n", error->message);
+        goto cleanup_manager;
+    }
+
+    if (argc < 2) {
+        g_print ("%s\n", g_option_context_get_help (context, TRUE, NULL));
+        goto cleanup_manager;
+    }
+
+    camera = uca_plugin_manager_get_camera (manager, argv[argc - 1], &error, NULL);
+
+    if (camera == NULL) {
+        g_print ("Error during initialization: %s\n", error->message);
+        goto cleanup_camera;
+    }
+
+    if (!uca_camera_parse_arg_props (camera, argv, argc - 1, &error)) {
+        g_print ("Error setting properties: %s\n", error->message);
+        goto cleanup_manager;
+    }
+    if (error != NULL)
+        g_print ("Error: %s\n", error->message);
+
+    g_option_context_free (context);
+
+    serve (camera, &error);
+
+cleanup_camera:
+    g_object_unref (camera);
+
+cleanup_manager:
+    g_object_unref (manager);
+
+    return error != NULL ? 1 : 0;
+}