/*
- * upkg: tool for manipulating Unreal Tournament packages.
- * Copyright © 2009-2012, 2015 Nick Bowler
+ * upkg: tool for manipulating Unreal Tournament packages.
+ * Copyright © 2009-2012, 2015, 2020, 2022 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 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.
+ * 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/>.
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <string.h>
#include <math.h>
#include <stdarg.h>
-#include <stdbool.h>
#include <inttypes.h>
#include <assert.h>
#include <glib-object.h>
#define U_OBJECT_GET_PRIV(o) \
G_TYPE_INSTANCE_GET_PRIVATE(o, U_TYPE_OBJECT, struct u_object_priv)
+#ifndef SIZE_MAX
+# define SIZE_MAX ((size_t)-1)
+#endif
struct prop_head {
const char *prop_name, *struct_name;
unsigned long size, array_idx;
- bool tag_msb;
+ gboolean tag_msb;
enum {
PROPERTY_END,
return obj;
}
+GObject *u_object_get_by_link(GObject *go, long index)
+{
+ g_return_val_if_fail(IS_U_OBJECT(go), NULL);
+ UObject *uo = U_OBJECT(go);
+
+ if (index == 0)
+ return NULL;
+
+ if (index < 0) {
+ return get_import_object(uo, -(index+1));
+ }
+
+ return u_object_new_from_package(uo->pkg, index-1);
+}
+
static int decode_object_property(UObject *uo, GValue *val, unsigned long len)
{
struct u_object_priv *priv = U_OBJECT_GET_PRIV(uo);
int rc;
rc = upkg_decode_index(&index, priv->buf+len, priv->nbuf-len);
- if (rc == 0 || index == 0)
+ if (rc == 0)
return -1;
- if (index < 0) {
- obj = get_import_object(uo, -(index+1));
- } else {
- obj = u_object_new_from_package(uo->pkg, index-1);
- }
-
+ obj = u_object_get_by_link(G_OBJECT(uo), index);
g_value_init(val, U_TYPE_OBJECT);
g_value_take_object(val, obj);
return 0;
}
-/*
- * Deserialize an IEEE 754 binary32 value in "little endian" (for whatever
- * that term is worth in this context). That is, when interpreted as a little
- * endian 32-bit unsigned integer: bit 31 is the sign, bits 30-23 are the
- * (biased) exponent, and bits 22-0 are the encoded part of the significand.
- *
- * The implementation is designed to be agnostic of the platform's actual
- * float type, but the conversion may be lossy if "float" is not itself a
- * binary32 format. NaN payloads are not preserved.
- */
-static float unpack_binary32_le(const unsigned char *buf)
-{
- unsigned long raw;
- long significand;
- int exponent;
- float result;
-
- raw = unpack_32_le(buf);
- exponent = (raw & 0x7f800000) >> 23;
- significand = (raw & 0x007fffff) >> 0;
-
- switch (exponent) {
- case 255:
- result = significand ? NAN : INFINITY;
- break;
- default:
- significand |= 0x00800000;
- /* fall through */
- case 0:
- result = ldexpf(significand, exponent-126-24);
- }
-
- return copysignf(result, raw & 0x80000000 ? -1 : 1);
-}
-
static unsigned long deserialize_property(UObject *uo, struct prop_head *head)
{
struct u_object_priv *priv = U_OBJECT_GET_PRIV(uo);
if (rc != 0)
return 0;
g_object_set_property(G_OBJECT(uo), head->prop_name, &val);
+
+ /*
+ * g_object_set_property increments refcount,
+ * release our reference.
+ */
+ g_object_unref(g_value_get_object(&val));
break;
case PROPERTY_FLOAT:
if (head->size != 4 || priv->nbuf-len < head->size)
return 0;
g_value_init(&val, G_TYPE_FLOAT);
- g_value_set_float(&val, unpack_binary32_le(priv->buf+len));
+ g_value_set_float(&val, u_unpack_binary32_le(priv->buf+len));
g_object_set_property(G_OBJECT(uo), head->prop_name, &val);
break;
default: