+++ /dev/null
-/*
- * upkg: tool for manipulating Unreal Tournament packages.
- * Copyright (C) 2009 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 <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <glib-object.h>
-
-#include <uobject/uobject.h>
-#include "upkg.h"
-#include "pack.h"
-
-#define U_OBJECT_GET_PRIV(o) \
- G_TYPE_INSTANCE_GET_PRIVATE(o, U_OBJECT_TYPE, struct u_object_priv)
-
-enum {
- PROPERTY_BYTE = 1,
- PROPERTY_INTEGER,
- PROPERTY_BOOLEAN,
- PROPERTY_FLOAT,
- PROPERTY_OBJECT,
- PROPERTY_NAME,
- PROPERTY_STRING,
- PROPERTY_CLASS,
- PROPERTY_ARRAY,
- PROPERTY_STRUCT,
- PROPERTY_VECTOR,
- PROPERTY_ROTATOR,
- PROPERTY_STR,
- PROPERTY_MAP,
- PROPERTY_FIXEDARRAY,
-};
-
-struct u_object_priv {
- struct upkg_file *f;
- size_t base, len;
-
- unsigned char buf[2048];
- unsigned long nbuf;
-};
-
-G_DEFINE_TYPE(UObject, u_object, G_TYPE_OBJECT);
-
-static unsigned long
-get_real_size(unsigned long *real, unsigned size, unsigned char *buf, size_t n)
-{
- assert(size < 8);
-
- *real = 0;
- switch (size) {
- case 0: *real = 1; return 0;
- case 1: *real = 2; return 0;
- case 2: *real = 4; return 0;
- case 3: *real = 12; return 0;
- case 4: *real = 16; return 0;
- case 5:
- if (n < 1) return 0;
- *real = *buf;
- return 1;
- case 6:
- if (n < 2) return 0;
- *real = unpack_16_le(buf);
- return 2;
- case 7:
- if (n < 4) return 0;
- *real = unpack_32_le(buf);
- return 4;
- }
-
- return 0;
-}
-
-static unsigned long
-decode_property(UObject *o, const char *name, struct upkg_file *f, unsigned long len)
-{
- struct u_object_priv *priv = U_OBJECT_GET_PRIV(o);
- unsigned long real_size, rc;
- int type, size, top;
- GValue val = {0};
-
- if (priv->nbuf-len < 1)
- return 0;
-
- type = (priv->buf[len] >> 0) & 0x0f;
- size = (priv->buf[len] >> 4) & 0x07;
- top = (priv->buf[len] >> 7) & 0x01;
- len += 1;
-
- rc = get_real_size(&real_size, size, priv->buf, priv->nbuf-len);
- if (real_size == 0)
- return 0;
- len += rc;
-
- switch (type) {
- case PROPERTY_BYTE:
- if (priv->nbuf-len < 1)
- return 0;
- g_value_init(&val, G_TYPE_UCHAR);
- g_value_set_uchar(&val, priv->buf[len]);
- g_object_set_property(G_OBJECT(o), name, &val);
- break;
- case PROPERTY_INTEGER:
- if (priv->nbuf-len < 4)
- return 0;
- g_value_init(&val, G_TYPE_ULONG);
- g_value_set_ulong(&val, unpack_32_le(priv->buf+len));
- g_object_set_property(G_OBJECT(o), name, &val);
- break;
- default:
- fprintf(stderr, "Unhandled property type %x\n", (unsigned)type);
- }
-
- real_size += len;
- if (real_size + len <= priv->nbuf) {
- priv->nbuf -= real_size;
- memmove(priv->buf, priv->buf+real_size, priv->nbuf);
- } else {
- long skip = real_size - priv->nbuf;
- if (upkg_export_seek(f, skip, SEEK_CUR) != 0)
- return 0;
- priv->nbuf = 0;
- }
-
- return real_size;
-}
-
-/* Deserialize properties from an Unreal package. */
-static int deserialize(UObject *o, struct upkg_file *f)
-{
- struct u_object_priv *priv = U_OBJECT_GET_PRIV(o);
- unsigned long rc, tot_len = 0;
-
- while (1) {
- unsigned long len = 0;
- const char *name;
- long tmp;
-
- /* Read some data into buffer. */
- if (!f->eof) {
- void *buf = priv->buf + priv->nbuf;
- size_t amt = sizeof priv->buf - priv->nbuf;
- rc = upkg_export_read(f, buf, amt);
- if (rc == 0 && priv->nbuf == 0)
- return -1;
- priv->nbuf += rc;
- }
-
- /* Get the property name. */
- rc = upkg_decode_index(&tmp, priv->buf+len, priv->nbuf-len);
- if (rc == 0)
- return -1;
- len = rc;
-
- name = upkg_get_name(f->pkg, tmp);
- if (!name) {
- return -1;
- } else if (strcmp(name, "None") == 0) {
- tot_len += len;
- break;
- }
-
- rc = decode_property(U_OBJECT(o), name, f, len);
- if (rc == 0)
- return -1;
- len = rc;
-
- tot_len += len;
- }
-
- f->base += tot_len;
- f->len -= tot_len;
- upkg_export_seek(f, 0, SEEK_SET);
-
- return 0;
-}
-
-int u_object_deserialize(GObject *obj, struct upkg *pkg, unsigned long idx)
-{
- g_return_val_if_fail(IS_U_OBJECT(obj), -1);
- UObject *uo = U_OBJECT(obj);
- struct upkg_file *f;
- int rc;
-
- g_return_val_if_fail(uo->pkg_file == NULL, -1);
- f = upkg_export_open(pkg, idx);
- if (!f) {
- return -1;
- }
-
- rc = U_OBJECT_GET_CLASS(obj)->deserialize(uo, f);
- if (rc != 0) {
- upkg_export_close(f);
- } else {
- uo->pkg = pkg;
- uo->pkg_idx = idx;
- uo->pkg_file = f;
- }
-
- return rc;
-}
-
-static void u_object_init(UObject *o)
-{
- o->pkg = NULL;
- o->pkg_file = NULL;
- o->pkg_idx = 0;
-}
-
-static void u_object_finalize(GObject *o)
-{
- UObject *uo = U_OBJECT(o);
-
- if (uo->pkg_file) {
- upkg_export_close(uo->pkg_file);
- }
-
- G_OBJECT_CLASS(u_object_parent_class)->finalize(o);
-}
-
-static void u_object_class_init(UObjectClass *class)
-{
- g_type_class_add_private(class, sizeof (struct u_object_priv));
- GObjectClass *go = G_OBJECT_CLASS(class);
-
- class->deserialize = deserialize;
- go->finalize = u_object_finalize;
-}
projects / upkg.git / blobdiff