Vector<AssetPtr> AssetRefListListener::Assets() const
{
Vector<AssetPtr> assets;
for (uint i = 0; i < current_.Size(); ++i)
{
const AssetReference &ref = current_[i];
if (!ref.ref.Empty())
assets.Push(assetAPI_->FindAsset(ref.ref));
else
assets.Push(AssetPtr());
}
return assets;
}
AssetPtr AssetManager::FindAsset(const boost::filesystem::path& file)
{
AssetMap::iterator it = m_assets.find(file.string());
if(it != m_assets.end())
{
if(it->second->Ready())
{
return it->second;
}
}
return AssetPtr();
}
AssetPtr AssetManager::LoadAsset(const boost::filesystem::path& file)
{
AssetPtr pAsset = FindAsset(file);
if(pAsset)
{
pAsset->IncRef();
return pAsset;
}
AssetLoader loader = FindLoader(file);
if(loader)
{
return AssetPtr();
}
pAsset = loader(file);
m_assets[file.string()] = pAsset;
return pAsset;
}
AssetPtr AssetManager::LoadSound(const boost::filesystem::path& file, bool sound3d)
{
SoundPtr pSound;
if(sound3d)
{
pSound = m_pSound->Create3DSound(file.string().c_str());
}
else
{
pSound = m_pSound->CreateSound(file.string().c_str());
}
if(pSound == nullptr)
{
return AssetPtr();
}
AssetPtr pAsset = alloc_object<SoundAsset, SoundPtr>(pSound);
return pAsset;
}
AssetPtr IAsset::Clone(QString newAssetName) const
{
assert(assetAPI);
if (!IsLoaded())
return AssetPtr();
AssetPtr existing = assetAPI->GetAsset(newAssetName);
if (existing)
{
LogError("Cannot Clone() asset \"" + Name() + "\" to a new asset \"" + newAssetName + "\": An asset with that name already exists!");
return AssetPtr();
}
std::vector<u8> data;
bool success = SerializeTo(data);
if (!success)
{
LogError("Cannot Clone() asset \"" + Name() + "\" to a new asset \"" + newAssetName + "\": Serializing the asset failed!");
return AssetPtr();
}
if (data.size() == 0)
{
LogError("Cannot Clone() asset \"" + Name() + "\" to a new asset \"" + newAssetName + "\": Asset serialization succeeded with zero size!");
return AssetPtr();
}
AssetPtr newAsset = assetAPI->CreateNewAsset(this->Type(), newAssetName);
if (!newAsset)
{
LogError("Cannot Clone() asset \"" + Name() + "\" to a new asset \"" + newAssetName + "\": AssetAPI::CreateNewAsset failed!");
return AssetPtr();
}
// Do not allow asynchronous loading due the caller of this
// expects the asset to be usable when this function returns.
success = newAsset->LoadFromFileInMemory(&data[0], data.size(), false);
if (!success)
{
LogError("Cannot Clone() asset \"" + Name() + "\" to a new asset \"" + newAssetName + "\": Deserializing the new asset from bytes failed!");
assetAPI->ForgetAsset(newAsset, false);
return AssetPtr();
}
return newAsset;
}
void AssetRefListener::HandleAssetRefChange(AssetAPI *assetApi, String assetRef, const String& assetType)
{
// Disconnect from any previous transfer we might be listening to
if (!currentTransfer.Expired())
{
IAssetTransfer* current = currentTransfer.Get();
current->Succeeded.Disconnect(this, &AssetRefListener::OnTransferSucceeded);
current->Failed.Disconnect(this, &AssetRefListener::OnTransferFailed);
currentTransfer.Reset();
}
assert(assetApi);
// Store AssetAPI ptr for later signal hooking.
if (!myAssetAPI)
myAssetAPI = assetApi;
// If the ref is empty, don't go any further as it will just trigger the LogWarning below.
assetRef = assetRef.Trimmed();
if (assetRef.Empty())
{
asset = AssetPtr();
return;
}
currentWaitingRef = "";
// Resolve the protocol for generated:// assets. These assets are never meant to be
// requested from AssetAPI, they cannot be fetched from anywhere. They can only be either
// loaded or we must wait for something to load/create them.
String protocolPart = "";
assetApi->ParseAssetRef(assetRef, &protocolPart);
if (protocolPart.ToLower() == "generated")
{
AssetPtr loadedAsset = assetApi->FindAsset(assetRef);
if (loadedAsset.Get() && loadedAsset->IsLoaded())
{
// Asset is loaded, emit Loaded with 1 msec delay to preserve the logic
// that HandleAssetRefChange won't emit anything itself as before.
// Otherwise existing connection can break/be too late after calling this function.
asset = loadedAsset;
assetApi->GetFramework()->Frame()->DelayedExecute(0.0f).Connect(this, &AssetRefListener::EmitLoaded);
return;
}
else
{
// Wait for it to be created.
currentWaitingRef = assetRef;
myAssetAPI->AssetCreated.Connect(this, &AssetRefListener::OnAssetCreated);
}
}
else
{
// This is not a generated asset, request normally from asset api.
AssetTransferPtr transfer = assetApi->RequestAsset(assetRef, assetType);
if (!transfer)
{
LogWarning("AssetRefListener::HandleAssetRefChange: Asset request for asset \"" + assetRef + "\" failed.");
return;
}
currentWaitingRef = assetRef;
transfer->Succeeded.Connect(this, &AssetRefListener::OnTransferSucceeded);
transfer->Failed.Connect(this, &AssetRefListener::OnTransferFailed);
currentTransfer = transfer;
}
// Disconnect from the old asset's load signal
if (asset)
asset->Loaded.Disconnect(this, &AssetRefListener::OnAssetLoaded);
asset = AssetPtr();
}
AssetPtr AssetRefListListener::Asset(uint index) const
{
if (index < current_.Size() && !current_[index].ref.Empty())
return assetAPI_->FindAsset(current_[index].ref);
return AssetPtr();
}