*initHEADmaster

1 files changed, 347 insertions, 0 deletions

diff --git a/source/3rd-party/SDL2/src/core/linux/SDL_dbus.c b/source/3rd-party/SDL2/src/core/linux/SDL_dbus.c
new file mode 100644
index 0000000..e0d9972
--- /dev/null
+++ b/source/3rd-party/SDL2/src/core/linux/SDL_dbus.c
@@ -0,0 +1,347 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../../SDL_internal.h"
+#include "SDL_dbus.h"
+
+#if SDL_USE_LIBDBUS
+/* we never link directly to libdbus. */
+#include "SDL_loadso.h"
+static const char *dbus_library = "libdbus-1.so.3";
+static void *dbus_handle = NULL;
+static unsigned int screensaver_cookie = 0;
+static SDL_DBusContext dbus;
+
+static int
+LoadDBUSSyms(void)
+{
+    #define SDL_DBUS_SYM2(x, y) \
+        if (!(dbus.x = SDL_LoadFunction(dbus_handle, #y))) return -1
+        
+    #define SDL_DBUS_SYM(x) \
+        SDL_DBUS_SYM2(x, dbus_##x)
+
+    SDL_DBUS_SYM(bus_get_private);
+    SDL_DBUS_SYM(bus_register);
+    SDL_DBUS_SYM(bus_add_match);
+    SDL_DBUS_SYM(connection_open_private);
+    SDL_DBUS_SYM(connection_set_exit_on_disconnect);
+    SDL_DBUS_SYM(connection_get_is_connected);
+    SDL_DBUS_SYM(connection_add_filter);
+    SDL_DBUS_SYM(connection_try_register_object_path);
+    SDL_DBUS_SYM(connection_send);
+    SDL_DBUS_SYM(connection_send_with_reply_and_block);
+    SDL_DBUS_SYM(connection_close);
+    SDL_DBUS_SYM(connection_unref);
+    SDL_DBUS_SYM(connection_flush);
+    SDL_DBUS_SYM(connection_read_write);
+    SDL_DBUS_SYM(connection_dispatch);
+    SDL_DBUS_SYM(message_is_signal);
+    SDL_DBUS_SYM(message_new_method_call);
+    SDL_DBUS_SYM(message_append_args);
+    SDL_DBUS_SYM(message_append_args_valist);
+    SDL_DBUS_SYM(message_get_args);
+    SDL_DBUS_SYM(message_get_args_valist);
+    SDL_DBUS_SYM(message_iter_init);
+    SDL_DBUS_SYM(message_iter_next);
+    SDL_DBUS_SYM(message_iter_get_basic);
+    SDL_DBUS_SYM(message_iter_get_arg_type);
+    SDL_DBUS_SYM(message_iter_recurse);
+    SDL_DBUS_SYM(message_unref);
+    SDL_DBUS_SYM(error_init);
+    SDL_DBUS_SYM(error_is_set);
+    SDL_DBUS_SYM(error_free);
+    SDL_DBUS_SYM(get_local_machine_id);
+    SDL_DBUS_SYM(free);
+    SDL_DBUS_SYM(free_string_array);
+    SDL_DBUS_SYM(shutdown);
+
+    #undef SDL_DBUS_SYM
+    #undef SDL_DBUS_SYM2
+
+    return 0;
+}
+
+static void
+UnloadDBUSLibrary(void)
+{
+    if (dbus_handle != NULL) {
+        SDL_UnloadObject(dbus_handle);
+        dbus_handle = NULL;
+    }
+}
+
+static int
+LoadDBUSLibrary(void)
+{
+    int retval = 0;
+    if (dbus_handle == NULL) {
+        dbus_handle = SDL_LoadObject(dbus_library);
+        if (dbus_handle == NULL) {
+            retval = -1;
+            /* Don't call SDL_SetError(): SDL_LoadObject already did. */
+        } else {
+            retval = LoadDBUSSyms();
+            if (retval < 0) {
+                UnloadDBUSLibrary();
+            }
+        }
+    }
+
+    return retval;
+}
+
+void
+SDL_DBus_Init(void)
+{
+    if (!dbus.session_conn && LoadDBUSLibrary() != -1) {
+        DBusError err;
+        dbus.error_init(&err);
+        dbus.session_conn = dbus.bus_get_private(DBUS_BUS_SESSION, &err);
+        if (!dbus.error_is_set(&err)) {
+            dbus.system_conn = dbus.bus_get_private(DBUS_BUS_SYSTEM, &err);
+        }
+        if (dbus.error_is_set(&err)) {
+            dbus.error_free(&err);
+            SDL_DBus_Quit();
+            return;  /* oh well */
+        }
+        dbus.connection_set_exit_on_disconnect(dbus.system_conn, 0);
+        dbus.connection_set_exit_on_disconnect(dbus.session_conn, 0);
+    }
+}
+
+void
+SDL_DBus_Quit(void)
+{
+    if (dbus.system_conn) {
+        dbus.connection_close(dbus.system_conn);
+        dbus.connection_unref(dbus.system_conn);
+    }
+    if (dbus.session_conn) {
+        dbus.connection_close(dbus.session_conn);
+        dbus.connection_unref(dbus.session_conn);
+    }
+/* Don't do this - bug 3950
+   dbus_shutdown() is a debug feature which closes all global resources in the dbus library. Calling this should be done by the app, not a library, because if there are multiple users of dbus in the process then SDL could shut it down even though another part is using it.
+*/
+#if 0
+    if (dbus.shutdown) {
+        dbus.shutdown();
+    }
+#endif
+    SDL_zero(dbus);
+    UnloadDBUSLibrary();
+}
+
+SDL_DBusContext *
+SDL_DBus_GetContext(void)
+{
+    if(!dbus_handle || !dbus.session_conn){
+        SDL_DBus_Init();
+    }
+    
+    if(dbus_handle && dbus.session_conn){
+        return &dbus;
+    } else {
+        return NULL;
+    }
+}
+
+static SDL_bool
+SDL_DBus_CallMethodInternal(DBusConnection *conn, const char *node, const char *path, const char *interface, const char *method, va_list ap)
+{
+    SDL_bool retval = SDL_FALSE;
+
+    if (conn) {
+        DBusMessage *msg = dbus.message_new_method_call(node, path, interface, method);
+        if (msg) {
+            int firstarg;
+            va_list ap_reply;
+            va_copy(ap_reply, ap);  /* copy the arg list so we don't compete with D-Bus for it */
+            firstarg = va_arg(ap, int);
+            if ((firstarg == DBUS_TYPE_INVALID) || dbus.message_append_args_valist(msg, firstarg, ap)) {
+                DBusMessage *reply = dbus.connection_send_with_reply_and_block(conn, msg, 300, NULL);
+                if (reply) {
+                    /* skip any input args, get to output args. */
+                    while ((firstarg = va_arg(ap_reply, int)) != DBUS_TYPE_INVALID) {
+                        /* we assume D-Bus already validated all this. */
+                        { void *dumpptr = va_arg(ap_reply, void*); (void) dumpptr; }
+                        if (firstarg == DBUS_TYPE_ARRAY) {
+                            { const int dumpint = va_arg(ap_reply, int); (void) dumpint; }
+                        }
+                    }
+                    firstarg = va_arg(ap_reply, int);
+                    if ((firstarg == DBUS_TYPE_INVALID) || dbus.message_get_args_valist(reply, NULL, firstarg, ap_reply)) {
+                        retval = SDL_TRUE;
+                    }
+                    dbus.message_unref(reply);
+                }
+            }
+            va_end(ap_reply);
+            dbus.message_unref(msg);
+        }
+    }
+
+    return retval;
+}
+
+SDL_bool
+SDL_DBus_CallMethodOnConnection(DBusConnection *conn, const char *node, const char *path, const char *interface, const char *method, ...)
+{
+    SDL_bool retval;
+    va_list ap;
+    va_start(ap, method);
+    retval = SDL_DBus_CallMethodInternal(conn, node, path, interface, method, ap);
+    va_end(ap);
+    return retval;
+}
+
+SDL_bool
+SDL_DBus_CallMethod(const char *node, const char *path, const char *interface, const char *method, ...)
+{
+    SDL_bool retval;
+    va_list ap;
+    va_start(ap, method);
+    retval = SDL_DBus_CallMethodInternal(dbus.session_conn, node, path, interface, method, ap);
+    va_end(ap);
+    return retval;
+}
+
+static SDL_bool
+SDL_DBus_CallVoidMethodInternal(DBusConnection *conn, const char *node, const char *path, const char *interface, const char *method, va_list ap)
+{
+    SDL_bool retval = SDL_FALSE;
+
+    if (conn) {
+        DBusMessage *msg = dbus.message_new_method_call(node, path, interface, method);
+        if (msg) {
+            int firstarg = va_arg(ap, int);
+            if ((firstarg == DBUS_TYPE_INVALID) || dbus.message_append_args_valist(msg, firstarg, ap)) {
+                if (dbus.connection_send(conn, msg, NULL)) {
+                    dbus.connection_flush(conn);
+                    retval = SDL_TRUE;
+                }
+            }
+
+            dbus.message_unref(msg);
+        }
+    }
+
+    return retval;
+}
+
+SDL_bool
+SDL_DBus_CallVoidMethodOnConnection(DBusConnection *conn, const char *node, const char *path, const char *interface, const char *method, ...)
+{
+    SDL_bool retval;
+    va_list ap;
+    va_start(ap, method);
+    retval = SDL_DBus_CallVoidMethodInternal(conn, node, path, interface, method, ap);
+    va_end(ap);
+    return retval;
+}
+
+SDL_bool
+SDL_DBus_CallVoidMethod(const char *node, const char *path, const char *interface, const char *method, ...)
+{
+    SDL_bool retval;
+    va_list ap;
+    va_start(ap, method);
+    retval = SDL_DBus_CallVoidMethodInternal(dbus.session_conn, node, path, interface, method, ap);
+    va_end(ap);
+    return retval;
+}
+
+SDL_bool
+SDL_DBus_QueryPropertyOnConnection(DBusConnection *conn, const char *node, const char *path, const char *interface, const char *property, const int expectedtype, void *result)
+{
+    SDL_bool retval = SDL_FALSE;
+
+    if (conn) {
+        DBusMessage *msg = dbus.message_new_method_call(node, path, "org.freedesktop.DBus.Properties", "Get");
+        if (msg) {
+            if (dbus.message_append_args(msg, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &property, DBUS_TYPE_INVALID)) {
+                DBusMessage *reply = dbus.connection_send_with_reply_and_block(conn, msg, 300, NULL);
+                if (reply) {
+                    DBusMessageIter iter, sub;
+                    dbus.message_iter_init(reply, &iter);
+                    if (dbus.message_iter_get_arg_type(&iter) == DBUS_TYPE_VARIANT) {
+                        dbus.message_iter_recurse(&iter, &sub);
+                        if (dbus.message_iter_get_arg_type(&sub) == expectedtype) {
+                            dbus.message_iter_get_basic(&sub, result);
+                            retval = SDL_TRUE;
+                        }
+                    }
+                    dbus.message_unref(reply);
+                }
+            }
+            dbus.message_unref(msg);
+        }
+    }
+
+    return retval;
+}
+
+SDL_bool
+SDL_DBus_QueryProperty(const char *node, const char *path, const char *interface, const char *property, const int expectedtype, void *result)
+{
+    return SDL_DBus_QueryPropertyOnConnection(dbus.session_conn, node, path, interface, property, expectedtype, result);
+}
+
+
+void
+SDL_DBus_ScreensaverTickle(void)
+{
+    SDL_DBus_CallVoidMethod("org.gnome.ScreenSaver", "/org/gnome/ScreenSaver", "org.gnome.ScreenSaver", "SimulateUserActivity", DBUS_TYPE_INVALID);
+}
+
+SDL_bool
+SDL_DBus_ScreensaverInhibit(SDL_bool inhibit)
+{
+    if ( (inhibit && (screensaver_cookie != 0)) || (!inhibit && (screensaver_cookie == 0)) ) {
+        return SDL_TRUE;
+    } else {
+        const char *node = "org.freedesktop.ScreenSaver";
+        const char *path = "/org/freedesktop/ScreenSaver";
+        const char *interface = "org.freedesktop.ScreenSaver";
+
+        if (inhibit) {
+            const char *app = "My SDL application";
+            const char *reason = "Playing a game";
+            if (!SDL_DBus_CallMethod(node, path, interface, "Inhibit",
+                    DBUS_TYPE_STRING, &app, DBUS_TYPE_STRING, &reason, DBUS_TYPE_INVALID,
+                    DBUS_TYPE_UINT32, &screensaver_cookie, DBUS_TYPE_INVALID)) {
+                return SDL_FALSE;
+            }
+            return (screensaver_cookie != 0) ? SDL_TRUE : SDL_FALSE;
+        } else {
+            if (!SDL_DBus_CallVoidMethod(node, path, interface, "UnInhibit", DBUS_TYPE_UINT32, &screensaver_cookie, DBUS_TYPE_INVALID)) {
+                return SDL_FALSE;
+            }
+            screensaver_cookie = 0;
+        }
+    }
+
+    return SDL_TRUE;
+}
+#endif
+
+/* vi: set ts=4 sw=4 expandtab: */