-/*
- * upkg: tool for manipulating Unreal Tournament packages.
- * Copyright © 2009-2011 Nick Bowler
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <glib-object.h>
-
-#include <uobject/uobject.h>
-#include <uobject/exportable.h>
-#include <uobject/loadable.h>
-#include <engine/music.h>
-#include "music-module.h"
-#include "upkg.h"
-
-#define MUSIC_GET_PRIV(o) \
- G_TYPE_INSTANCE_GET_PRIVATE(o, ENGINE_MUSIC_TYPE, struct music_priv)
-
-struct music_priv {
- struct music_mod *mod;
- unsigned loaded;
-};
-
-static void exportable_init(UObjectExportableIface *);
-static void loadable_init(UObjectLoadableIface *);
-
-G_DEFINE_DYNAMIC_TYPE_EXTENDED(EngineMusic, engine_music, U_TYPE_OBJECT, 0,
- G_IMPLEMENT_INTERFACE(U_TYPE_OBJECT_EXPORTABLE, exportable_init)
- G_IMPLEMENT_INTERFACE(U_TYPE_OBJECT_LOADABLE, loadable_init)
-);
-
-static int load(GObject *o)
-{
- struct music_priv *priv = MUSIC_GET_PRIV(o);
- struct upkg_file *f = U_OBJECT(o)->pkg_file;
-
- if (!priv->loaded) {
- g_return_val_if_fail(f != NULL, -1);
-
- if (upkg_export_seek(f, 0, SEEK_SET) != 0) {
- return -1;
- }
-
- priv->mod = music_mod_open(f);
- if (!priv->mod) {
- return -1;
- }
- }
-
- priv->loaded++;
- return 0;
-}
-
-static void unload(GObject *o)
-{
- struct music_priv *priv = MUSIC_GET_PRIV(o);
- g_return_if_fail(priv->loaded > 0);
-
- if (--priv->loaded == 0) {
- music_mod_close(priv->mod);
- }
-}
-
-static int export(GObject *o, FILE *f)
-{
- struct music_priv *priv = MUSIC_GET_PRIV(o);
- int rc;
-
- if (load(o) != 0)
- return -1;
-
- rc = music_mod_dump(priv->mod, f);
-
- unload(o);
-
- return rc;
-}
-
-static int export_name(GObject *o, char *buf, size_t n)
-{
- struct music_priv *priv = MUSIC_GET_PRIV(o);
- const char *type;
- int rc;
-
- if (load(o) != 0) {
- if (n > 0) *buf = 0;
- return 0;
- }
-
- type = music_mod_type(priv->mod);
- rc = snprintf(buf, n, "%s.%s", U_OBJECT(o)->pkg_file->name, type);
-
- unload(o);
-
- return rc;
-}
-
-static void exportable_init(UObjectExportableIface *e)
-{
- e->export = export;
- e->export_name = export_name;
-}
-
-static void loadable_init(UObjectLoadableIface *l)
-{
- l->load = load;
- l->unload = unload;
-}
-
-static int deserialize(UObject *uo)
-{
- struct music_priv *priv = MUSIC_GET_PRIV(uo);
- struct upkg_file *f = uo->pkg_file;
- size_t rc, pos = 0, buflen;
- unsigned char buf[32];
- long size;
-
- U_OBJECT_CLASS(engine_music_parent_class)->deserialize(uo);
-
- buflen = upkg_export_read(f, buf, sizeof buf);
-
- /* Random field #1 */
- if (buflen - pos < 1)
- return -1;
- pos += 1;
-
- if (uo->pkg->version > 61) {
- /* Random field #2 */
- if (buflen - pos < 4)
- return -1;
- pos += 4;
- }
-
- rc = upkg_decode_index(&size, buf+pos, buflen-pos);
- if (rc == 0 || size < 0)
- return -1;
- pos += rc;
-
- f->base += pos;
- f->len = size;
- upkg_export_seek(f, 0, SEEK_SET);
-
- return 0;
-}
-
-void music_register(GTypeModule *m)
-{
- engine_music_register_type(m);
-}
-
-static void engine_music_init(EngineMusic *m)
-{
- struct music_priv *priv = MUSIC_GET_PRIV(m);
- *priv = (struct music_priv){0};
-}
-
-static void engine_music_finalize(GObject *o)
-{
- struct music_priv *priv = MUSIC_GET_PRIV(o);
-
- if (priv->loaded >= 1) {
- priv->loaded = 1;
- unload(o);
- }
-
- G_OBJECT_CLASS(engine_music_parent_class)->finalize(o);
-}
-
-static void engine_music_class_init(EngineMusicClass *class)
-{
- UObjectClass *uo = U_OBJECT_CLASS(class);
- GObjectClass *go = G_OBJECT_CLASS(class);
- g_type_class_add_private(class, sizeof (struct music_priv));
-
- uo->deserialize = deserialize;
- go->finalize = engine_music_finalize;
-
- music_mod_init();
-}
-
-static void engine_music_class_finalize(EngineMusicClass *class)
-{
- music_mod_exit();
-}