void FStreamedAudioPlatformData::Cache(USoundWave& InSoundWave, FName AudioFormatName, uint32 InFlags)
{
// Flush any existing async task and ignore results.
FinishCache();
uint32 Flags = InFlags;
static bool bForDDC = FString(FCommandLine::Get()).Contains(TEXT("DerivedDataCache"));
if (bForDDC)
{
Flags |= EStreamedAudioCacheFlags::ForDDCBuild;
}
bool bForceRebuild = (Flags & EStreamedAudioCacheFlags::ForceRebuild) != 0;
bool bAsync = !bForDDC && (Flags & EStreamedAudioCacheFlags::Async) != 0;
GetStreamedAudioDerivedDataKey(InSoundWave, AudioFormatName, DerivedDataKey);
if (bAsync && !bForceRebuild)
{
AsyncTask = new FStreamedAudioAsyncCacheDerivedDataTask(this, &InSoundWave, AudioFormatName, Flags);
AsyncTask->StartBackgroundTask();
}
else
{
FStreamedAudioCacheDerivedDataWorker Worker(this, &InSoundWave, AudioFormatName, Flags);
Worker.DoWork();
Worker.Finalize();
}
}
void USoundWave::CachePlatformData(bool bAsyncCache)
{
FString DerivedDataKey;
FName AudioFormat = GetWaveFormatForRunningPlatform(*this);
GetStreamedAudioDerivedDataKey(*this, AudioFormat, DerivedDataKey);
if (RunningPlatformData == NULL || RunningPlatformData->DerivedDataKey != DerivedDataKey)
{
if (RunningPlatformData == NULL)
{
RunningPlatformData = new FStreamedAudioPlatformData();
}
RunningPlatformData->Cache(*this, AudioFormat, bAsyncCache ? EStreamedAudioCacheFlags::Async : EStreamedAudioCacheFlags::None);
}
}
void USoundWave::SerializeCookedPlatformData(FArchive& Ar)
{
if (IsTemplate())
{
return;
}
DECLARE_SCOPE_CYCLE_COUNTER( TEXT("USoundWave::SerializeCookedPlatformData"), STAT_SoundWave_SerializeCookedPlatformData, STATGROUP_LoadTime );
#if WITH_EDITORONLY_DATA
if (Ar.IsCooking() && Ar.IsPersistent())
{
check(!Ar.CookingTarget()->IsServerOnly());
FName PlatformFormat = Ar.CookingTarget()->GetWaveFormat(this);
FString DerivedDataKey;
GetStreamedAudioDerivedDataKey(*this, PlatformFormat, DerivedDataKey);
FStreamedAudioPlatformData *PlatformDataToSave = CookedPlatformData.FindRef(DerivedDataKey);
if (PlatformDataToSave == NULL)
{
PlatformDataToSave = new FStreamedAudioPlatformData();
PlatformDataToSave->Cache(*this, PlatformFormat, EStreamedAudioCacheFlags::InlineChunks | EStreamedAudioCacheFlags::Async);
CookedPlatformData.Add(DerivedDataKey, PlatformDataToSave);
}
PlatformDataToSave->FinishCache();
PlatformDataToSave->Serialize(Ar, this);
}
else
#endif // #if WITH_EDITORONLY_DATA
{
check(!FPlatformProperties::IsServerOnly());
CleanupCachedRunningPlatformData();
check(RunningPlatformData == NULL);
// Don't serialize streaming data on servers, even if this platform supports streaming in theory
RunningPlatformData = new FStreamedAudioPlatformData();
RunningPlatformData->Serialize(Ar, this);
}
}
void USoundWave::FinishCachePlatformData()
{
if (RunningPlatformData == NULL)
{
// begin cache never called
CachePlatformData();
}
else
{
// make sure async requests are finished
RunningPlatformData->FinishCache();
}
#if DO_CHECK
FString DerivedDataKey;
FName AudioFormat = GetWaveFormatForRunningPlatform(*this);
GetStreamedAudioDerivedDataKey(*this, AudioFormat, DerivedDataKey);
check(RunningPlatformData->DerivedDataKey == DerivedDataKey);
#endif
}
