// ----------------------------------------------------------------------------------------------
// this function must *always* return a valid Resource, even for 'missing' resources.
Resource* ResourceManager::LoadAsync(const WCHAR* filename, Resource* def)
{
AutoSync sync(&m_criticalSection); // CRITICAL SECTION - ENTIRE FUNCTION
Resource * res = NULL;
// check cache, use if already there.
if(NULL == res)
{
auto it = m_loaded.find(filename);
if(it != m_loaded.end() ) res = it->second;
}
// check pending, use if already there.
if(NULL == res)
{
auto it = m_pending.find(filename);
if(it != m_pending.end() ) res = it->second;
}
// create new info and add it to pending list to be loaded.
if(NULL == res)
{
ResourceFactory * factory = GetFactory(filename);
if (!factory)
{
return NULL;
}
res = factory->CreateResource(def);
m_pending[filename] = res;
BOOL success = SetEvent(m_EventHandle);
#ifdef NDEBUG
UNREFERENCED_VARIABLE(success);
#endif
assert(success);
}
assert(res);
res->AddRef();
return res;
}
// ----------------------------------------------------------------------------------------------
Resource* ResourceManager::LoadImmediate(const WCHAR* filename, Resource* def)
{
AutoSync sync(&m_criticalSection); // CRITICAL SECTION - ENTIRE FUNCTION
Resource * res = NULL;
// check cache, use if already there.
if(NULL == res)
{
auto it = m_loaded.find(filename);
if(it != m_loaded.end() ) res = it->second;
}
// check pending, use if already there.
if(NULL == res)
{
auto it = m_pending.find(filename);
if(it != m_pending.end() ) res = it->second;
}
// create new info and add load it immediatelly.
if(NULL == res)
{
ResourceFactory * factory = GetFactory(filename);
res = factory->CreateResource(def);
bool loaded = LoadResource(res, filename);
if(!loaded)
{
Logger::Log(OutputMessageType::Error, L"failed to load %s\n",filename);
SAFE_DELETE(res);
return NULL;
}
else
{
m_loaded[filename] = res;
}
}
res->AddRef();
return res;
}