%alltop{
/*
* 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 .
*/
%}
%{
#include
#include
#include
#include
#include
#include
%}
%h{
#include
%}
class Engine:Music from U:Object (dynamic)
(interface U:Object:Exportable)
(interface U:Object:Loadable)
{
private struct music_mod *mod = NULL;
private unsigned loaded = 0;
interface U:Object:Loadable
private int load(U:Object *uo)
{
struct upkg_file *f = uo->pkg_file;
Self *self = SELF(uo);
if (!self->_priv->loaded) {
g_return_val_if_fail(f != NULL, -1);
if (upkg_export_seek(f, 0, SEEK_SET) != 0)
return -1;
self->_priv->mod = music_mod_open(f);
if (!self->_priv->mod)
return -1;
}
self->_priv->loaded++;
return 0;
}
interface U:Object:Loadable
private void unload(U:Object *uo)
{
Self *self = SELF(uo);
g_return_if_fail(self->_priv->loaded > 0);
if (--self->_priv->loaded == 0)
music_mod_close(self->_priv->mod);
}
interface U:Object:Exportable
private int export(U:Object *uo, FILE *f)
{
Self *self = SELF(uo);
int rc;
if (self_load(uo) != 0)
return -1;
rc = music_mod_dump(self->_priv->mod, f);
self_unload(uo);
return rc;
}
interface U:Object:Exportable
private int export_name(U:Object *uo, char *buf, size_t n)
{
Self *self = SELF(uo);
const char *type;
int rc;
if (self_load(uo) != 0) {
if (n > 0)
buf[0] = '\0';
return 0;
}
type = music_mod_type(self->_priv->mod);
rc = snprintf(buf, n, "%s.%s", uo->pkg_file->name, type);
self_unload(uo);
return rc;
}
override (U:Object) int deserialize(U:Object *uo)
{
struct upkg_file *f = uo->pkg_file;
Self *self = SELF(uo);
size_t rc, pos = 0, buflen;
unsigned char buf[32];
long size;
PARENT_HANDLER(uo);
buflen = upkg_export_read(f, buf, sizeof buf);
/* Unknown field #1 */
if (buflen - pos < 1)
return -1;
pos += 1;
if (uo->pkg->version > 61) {
/* Unknown 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;
}
}