cdo/retro-rpg
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Fix some memory leaks

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This commit is contained in:
Camden Dixie O'Brien 2025-01-02 17:53:40 +00:00
parent 2c8d01df49
commit 8dbdea6ac4
2 changed files with 39 additions and 31 deletions
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1
engine/engine.c
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@ -93,6 +93,7 @@ int main(int argc, char *argv[])
quit:
game_teardown(gamemem);
free(gamemem);
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_Quit();

69
game/main.c
View File

@ -164,6 +164,15 @@ static inline bool tilepassable(const map_t map, int x, int y)
return true;
}
static inline int propint(xmlNodePtr node, const char *prop)
{
xmlChar *str = xmlGetProp(node, (const xmlChar *)prop);
assert(str);
int val = atoi((const char *)str);
xmlFree(str);
return val;
}
static void maploadlayer(map_t map, xmlNodePtr layernode, int layeridx)
{
xmlNodePtr node = layernode->xmlChildrenNode;
@ -178,11 +187,8 @@ static void maploadlayer(map_t map, xmlNodePtr layernode, int layeridx)
if (0 != xmlStrcmp(node->name, (const xmlChar *)"chunk"))
continue;
xmlChar *x_attr, *y_attr;
x_attr = xmlGetProp(node, (const xmlChar *)"x");
y_attr = xmlGetProp(node, (const xmlChar *)"y");
const int chunk_x = atoi((const char *)x_attr);
const int chunk_y = atoi((const char *)y_attr);
const int chunk_x = propint(node, "x");
const int chunk_y = propint(node, "y");
chunk_contents = node->xmlChildrenNode;
assert(
@ -243,18 +249,15 @@ objtypeload(gamestate_t *state, const char *templ, SDL_Renderer *renderer)
&& xmlStrcmp(node->name, (const xmlChar *)"object") != 0)
node = node->next;
assert(NULL != node);
unsigned id
= atoi((const char *)xmlGetProp(node, (const xmlChar *)"gid"));
unsigned id = propint(node, "gid");
assert(id < MAXOBJTYPES);
// Populate objtype struct if not already loaded
if (NULL == state->objtypes[id].tex) {
state->objtypes[id].src.x = 0;
state->objtypes[id].src.y = 0;
state->objtypes[id].src.w
= atoi((const char *)xmlGetProp(node, (const xmlChar *)"width"));
state->objtypes[id].src.h = atoi(
(const char *)xmlGetProp(node, (const xmlChar *)"height"));
state->objtypes[id].src.w = propint(node, "width");
state->objtypes[id].src.h = propint(node, "height");
node = node->xmlChildrenNode;
while (node != NULL
@ -264,24 +267,29 @@ objtypeload(gamestate_t *state, const char *templ, SDL_Renderer *renderer)
for (node = node->xmlChildrenNode; NULL != node; node = node->next) {
if (xmlStrcmp(node->name, (const xmlChar *)"property") != 0)
continue;
const char *key
= (const char *)xmlGetProp(node, (const xmlChar *)"name");
const char *val
= (const char *)xmlGetProp(node, (const xmlChar *)"value");
if (strcmp(key, "animframes") == 0) {
state->objtypes[id].animframes = atoi(val);
} else if (strcmp(key, "assetpath") == 0) {
assert(strlen(state->assetdir) + strlen(val) < MAX_PATH_LEN);
xmlChar *key = xmlGetProp(node, (const xmlChar *)"name");
assert(key);
xmlChar *val = xmlGetProp(node, (const xmlChar *)"value");
assert(val);
if (xmlStrcmp(key, (const xmlChar *)"animframes") == 0) {
state->objtypes[id].animframes = atoi((const char *)val);
} else if (xmlStrcmp(key, (const xmlChar *)"assetpath") == 0) {
assert(
strlen(state->assetdir) + strlen((const char *)val)
< MAX_PATH_LEN);
strcpy(buf, state->assetdir);
strcat(buf, val);
strcat(buf, (const char *)val);
state->objtypes[id].tex = IMG_LoadTexture(renderer, buf);
assert(NULL != state->objtypes[id].tex);
} else {
assert(false);
}
xmlFree(key);
xmlFree(val);
}
}
xmlFreeDoc(doc);
return id;
}
@ -309,26 +317,23 @@ maploadobjects(gamestate_t *state, xmlNodePtr node, SDL_Renderer *renderer)
obj_t *o = &state->objcol.buf[state->objcol.n++];
// Load object type
const xmlChar *templ = xmlGetProp(node, (const xmlChar *)"template");
assert(NULL != templ);
xmlChar *templ = xmlGetProp(node, (const xmlChar *)"template");
assert(templ);
o->type = objtypeload(state, (const char *)templ, renderer);
xmlFree(templ);
// Load object location and set size from objtype
o->pos.x
= atoi((const char *)xmlGetProp(node, (const xmlChar *)"x"));
o->pos.y
= atoi((const char *)xmlGetProp(node, (const xmlChar *)"y"));
// Load object location
o->pos.x = propint(node, "x");
o->pos.y = propint(node, "y");
} while ((node = node->next) != NULL);
}
static void
mapload(gamestate_t *state, const char *path, SDL_Renderer *renderer)
{
xmlDocPtr doc;
xmlNodePtr node;
doc = xmlParseFile(path);
xmlDocPtr doc = xmlParseFile(path);
assert(NULL != doc);
node = xmlDocGetRootElement(doc);
xmlNodePtr node = xmlDocGetRootElement(doc);
assert(0 == xmlStrcmp(node->name, (const xmlChar *)"map"));
node = node->xmlChildrenNode;
int layer = 0;
@ -339,6 +344,7 @@ mapload(gamestate_t *state, const char *path, SDL_Renderer *renderer)
else if (xmlStrcmp(node->name, (const xmlChar *)"objectgroup") == 0)
maploadobjects(state, node, renderer);
} while ((node = node->next) != NULL);
xmlFreeDoc(doc);
}
static void mapdraw(const gamestate_t *state, SDL_Renderer *renderer)
@ -521,6 +527,7 @@ void game_teardown(void *mem)
else
break;
}
free(state->objcol.buf);
}
gamestatus_t game_evthandle(void *mem, const SDL_Event *evt)