From a1fabc10623b9e9a4177e8e0344d5edccdcf60b7 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Mon, 18 Feb 2013 20:40:16 -0500
Subject: Make the tileset firstgid a Uint32.

---
(limited to 'src')

diff --git a/src/resources/map.c b/src/resources/map.c
index 3fbf12e..0719a14 100644
--- a/src/resources/map.c
+++ b/src/resources/map.c
@@ -119,7 +119,7 @@ map_get(const char *path)
 }
 
 void
-map_add_tileset(struct map *m, struct tileset *t, int firstgid)
+map_add_tileset(struct map *m, struct tileset *t, Uint32 firstgid)
 {
 	struct map_tileset *mts;
 
@@ -345,7 +345,8 @@ tmx_map_el_start(void *pv, const char *name, const char **attr)
 			xml_node_push(p, ts, tmx_tileset_el_start,
 					tmx_tilesetemb_end, NULL);
 		}
-		xml_get_int_attr(p, attr, "firstgid", &m->cur_ts_firstgid, 1);
+		xml_get_uint32_attr(p, attr, "firstgid", &m->cur_ts_firstgid,
+				1);
 	} else if (xml_check_tag(name, "layer")) {
 		ly_name = NULL;
 		xml_get_string_attr(p, attr, "name", &ly_name, 1);
diff --git a/src/resources/map.h b/src/resources/map.h
index 6d1d789..267eb30 100644
--- a/src/resources/map.h
+++ b/src/resources/map.h
@@ -32,7 +32,7 @@ struct tileset {
 };
 struct map_tileset {
 	struct tileset *tileset;
-	int firstgid;
+	Uint32 firstgid;
 	struct map_tileset *next;
 };
 struct layer {
@@ -92,12 +92,12 @@ struct map {
 	struct map_collision *collisions;
 	struct map_exit *map_exits_head;
 	struct map_exit *map_exits_tail;
-	int cur_ts_firstgid;
+	Uint32 cur_ts_firstgid;
 };
 
 struct map *map_get(const char *path);
 void map_free(struct map *map);
-void map_add_tileset(struct map *m, struct tileset *t, int firstgid);
+void map_add_tileset(struct map *m, struct tileset *t, Uint32 firstgid);
 struct layer *map_get_layer(struct map *m, const char *name);
 void map_add_exit(struct map *m, struct map_exit *e);
 
diff --git a/src/xml.c b/src/xml.c
index 267b25e..b10b4c7 100644
--- a/src/xml.c
+++ b/src/xml.c
@@ -1,6 +1,8 @@
 #include <string.h>
 #include <stdio.h>
+#include <inttypes.h>
 #include <expat.h>
+#include <SDL_stdinc.h>
 #include "xml.h"
 #include "logging.h"
 
@@ -35,6 +37,26 @@ xml_unexpected_end_tag(XML_Parser p, const char *found, const char *expected)
 }
 
 void
+xml_get_uint32_attr(XML_Parser p, const char **attr, const char *name,
+		Uint32 *dest, int req)
+{
+	for (; attr[0] != NULL; attr += 2) {
+		if (strcmp(attr[0], name) == 0) {
+			if (sscanf(attr[1], "%" PRIu32, dest) == 1) {
+				return;
+			} else if (req) {
+				warn("Invalid \"%s\" attribute value", name);
+				XML_StopParser(p, XML_FALSE);
+			}
+		}
+	}
+	if (req) {
+		warn("Required attribute \"%s\" not found", name);
+		XML_StopParser(p, XML_FALSE);
+	}
+}
+
+void
 xml_get_int_attr(XML_Parser p, const char **attr, const char *name,
 		int *dest, int req)
 {
diff --git a/src/xml.h b/src/xml.h
index a863c9b..f3fc879 100644
--- a/src/xml.h
+++ b/src/xml.h
@@ -2,6 +2,7 @@
 #define XML_H
 
 #include <expat.h>
+#include <SDL_stdinc.h>
 
 extern inline int xml_check_tag(const char *found, const char *expected);
 extern inline void xml_unexpected_start_tag(XML_Parser p, const char *found,
@@ -10,6 +11,8 @@ extern inline void xml_unexpected_end_tag(XML_Parser p, const char *found,
 		const char *expected);
 void xml_get_int_attr(XML_Parser p, const char **attr, const char *name,
 		int *dest, int req);
+void xml_get_uint32_attr(XML_Parser p, const char **attr, const char *name,
+		Uint32 *dest, int req);
 void xml_get_string_attr(XML_Parser p, const char **attr, const char *name,
 		char **dest, int req);
 void xml_node_push(XML_Parser p, void *data,
--
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