private static ABO load_abo(int abi)
{
//TODO: remove recursive call
ABO abo = null;
abi_to_abo.TryGetValue(abi, out abo);
if (abo != null)
{
abo.refn++;
DBGPRINT("load_abo abi:" + abi + " ref:" + abo.refn);
return(abo);
}
abo = new ABO();
abi_to_abo[abi] = abo; //insert first, for circle depend
var name = abi_to_name[abi];
var depend = MANIFEST.GetDirectDependencies(name);
for (int i = 0; i < depend.Length; i++)
{
var dn = depend[i];
var di = 0;
name_to_abi.TryGetValue(dn, out di);
if (di == 0)
{
DBGPRINT("load_abo depend nonexist assetbundle:" + dn);
return(null);
}
load_abo(di);
abo.dependencies.Add(di);
}
var path = Path.Combine(ROOT, name);
DBGPRINT("load_abo depend assetbundle:" + path);
var ab = AssetBundle.LoadFromFile(path);
System.Diagnostics.Debug.Assert(ab != null);
abo.ab = ab;
abo.abi = abi;
return(abo);
}
private static void unload_abo(int abi)
{
ABO abo = null;
abi_to_abo.TryGetValue(abi, out abo);
if (abo == null)
{
DBGPRINT("unload_abo nonexist abo:" + abi);
return;
}
--abo.refn;
DBGPRINT("unload_abo abi:" + abi + " ref:" + abo.refn);
if (abo.refn <= 0)
{
var iter = abo.dependencies.GetEnumerator();
while (iter.MoveNext())
{
unload_abo(iter.Current);
}
abo.ab.Unload(true);
abi_to_abo.Remove(abi);
DBGPRINT("unload_abo clear abi:" + abi);
}
}