bool FNetworkPlatformFile::IsInLocalDirectory(const FString& Filename)
{
if (!bHasLoadedDDCDirectories)
{
// need to be careful here to avoid initializing the DDC from the wrong thread or using LocalDirectories while it is being initialized
FScopeLock ScopeLock(&LocalDirectoriesCriticalSection);
if (IsInGameThread() && GConfig && GConfig->IsReadyForUse())
{
// one time DDC directory initialization
// add any DDC directories to our list of local directories (local = inner platform file, it may
// actually live on a server, but it will use the platform's file system)
if (GetDerivedDataCache())
{
TArray<FString> DdcDirectories;
GetDerivedDataCacheRef().GetDirectories(DdcDirectories);
LocalDirectories.Append(DdcDirectories);
}
FPlatformMisc::MemoryBarrier();
bHasLoadedDDCDirectories = true;
}
return IsInLocalDirectoryUnGuarded(Filename);
}
// once the DDC is initialized, we don't need to lock a critical section anymore
return IsInLocalDirectoryUnGuarded(Filename);
}
FByteBulkData* USoundWave::GetCompressedData(FName Format)
{
if (IsTemplate() || IsRunningDedicatedServer())
{
return NULL;
}
bool bContainedData = CompressedFormatData.Contains(Format);
FByteBulkData* Result = &CompressedFormatData.GetFormat(Format);
if (!bContainedData)
{
if (!FPlatformProperties::RequiresCookedData() && GetDerivedDataCache())
{
TArray<uint8> OutData;
FDerivedAudioDataCompressor* DeriveAudioData = new FDerivedAudioDataCompressor(this, Format);
GetDerivedDataCacheRef().GetSynchronous(DeriveAudioData, OutData);
if (OutData.Num())
{
Result->Lock(LOCK_READ_WRITE);
FMemory::Memcpy(Result->Realloc(OutData.Num()), OutData.GetData(), OutData.Num());
Result->Unlock();
}
}
else
{
UE_LOG(LogAudio, Error, TEXT("Attempt to access the DDC when there is none available on sound '%s', format = %s. Should have been cooked."), *GetFullName(), *Format.ToString());
}
}
check(Result);
return Result->GetBulkDataSize() > 0 ? Result : NULL; // we don't return empty bulk data...but we save it to avoid thrashing the DDC
}
class FDerivedDataCacheInterface& GetDerivedDataCacheRef()
{
class FDerivedDataCacheInterface* SingletonInterface = GetDerivedDataCache();
if (!SingletonInterface)
{
UE_LOG(LogInit, Fatal, TEXT("Derived Data Cache was requested, but not available."));
CA_ASSUME( SingletonInterface != NULL ); // Suppress static analysis warning in unreachable code (fatal error)
}
return *SingletonInterface;
}
