private static unsafe void PatchBlobAssetsInChunkBeforeSave(Chunk *tempChunk, Chunk *originalChunk,
NativeArray <int> blobAssetOffsets, NativeHashMap <BlobAssetRefKey, int> blobAssetRefs)
{
var archetype = originalChunk->Archetype;
var typeCount = archetype->TypesCount;
var entityCount = originalChunk->Count;
for (var unordered_ti = 0; unordered_ti < typeCount; ++unordered_ti)
{
var ti = archetype->TypeMemoryOrder[unordered_ti];
var type = archetype->Types[ti];
if (type.IsZeroSized)
{
continue;
}
var ct = TypeManager.GetTypeInfo(type.TypeIndex);
var blobAssetRefCount = ct.BlobAssetRefOffsetCount;
if (blobAssetRefCount == 0)
{
continue;
}
var chunkBuffer = tempChunk->Buffer;
if (type.IsBuffer)
{
throw new InvalidOperationException("BlobAssetReferences are not supported inside DynamicBuffer components");
}
else if (blobAssetRefCount > 0)
{
int subArrayOffset = archetype->Offsets[ti];
byte *componentArrayStart = OffsetFromPointer(chunkBuffer, subArrayOffset);
int size = archetype->SizeOfs[ti];
byte *end = componentArrayStart + size * entityCount;
for (var componentData = componentArrayStart; componentData < end; componentData += size)
{
for (int i = 0; i < blobAssetRefCount; ++i)
{
var offset = ct.BlobAssetRefOffsets[i].Offset;
var blobAssetRefPtr = (BlobAssetReferenceData *)(componentData + offset);
int value = -1;
if (blobAssetRefPtr->m_Ptr != null)
{
var blobAssetPtr = new BlobAssetPtr((*(BlobAssetHeader **)blobAssetRefPtr) - 1);
var key = new BlobAssetRefKey {
chunk = originalChunk, offsetInBuffer = (int)((byte *)blobAssetRefPtr - chunkBuffer)
};
bool found = blobAssetRefs.TryGetValue(key, out value);
value = blobAssetOffsets[value];
Assert.IsTrue(found);
}
blobAssetRefPtr->m_Ptr = (byte *)value;
}
}
}
}
}
public bool TryGetBlobAsset(ulong hash, out BlobAssetPtr blobAssetPtr)
{
var blobAssets = (BlobAssetPtr *)m_BlobAssets->Ptr;
for (var i = 0; i < m_BlobAssets->Length; i++)
{
if (blobAssets[i].Header->Hash != hash)
{
continue;
}
blobAssetPtr = new BlobAssetPtr(blobAssets[i].Header);
return(true);
}
blobAssetPtr = default;
return(false);
}
private static unsafe void GatherAllUsedBlobAssets(EntityArchetype[] archetypeArray, out NativeHashMap <BlobAssetRefKey, int> blobAssetRefs, out NativeList <BlobAssetPtr> blobAssets)
{
var blobAssetMap = new NativeHashMap <BlobAssetPtr, int>(100, Allocator.Temp);
blobAssetRefs = new NativeHashMap <BlobAssetRefKey, int>(100, Allocator.Temp);
blobAssets = new NativeList <BlobAssetPtr>(100, Allocator.Temp);
for (int archetypeIndex = 0; archetypeIndex < archetypeArray.Length; ++archetypeIndex)
{
var archetype = archetypeArray[archetypeIndex].Archetype;
if (!archetype->ContainsBlobAssetRefs)
{
continue;
}
var typeCount = archetype->TypesCount;
for (var ci = 0; ci < archetype->Chunks.Count; ++ci)
{
var chunk = archetype->Chunks.p[ci];
var entityCount = chunk->Count;
for (var unordered_ti = 0; unordered_ti < typeCount; ++unordered_ti)
{
var ti = archetype->TypeMemoryOrder[unordered_ti];
var type = archetype->Types[ti];
if (type.IsZeroSized)
{
continue;
}
var ct = TypeManager.GetTypeInfo(type.TypeIndex);
var blobAssetRefCount = ct.BlobAssetRefOffsetCount;
if (blobAssetRefCount == 0)
{
continue;
}
var chunkBuffer = chunk->Buffer;
if (type.IsBuffer)
{
}
else if (blobAssetRefCount > 0)
{
int subArrayOffset = archetype->Offsets[ti];
byte *componentArrayStart = OffsetFromPointer(chunkBuffer, subArrayOffset);
int size = archetype->SizeOfs[ti];
byte *end = componentArrayStart + size * entityCount;
for (var componentData = componentArrayStart; componentData < end; componentData += size)
{
for (int i = 0; i < blobAssetRefCount; ++i)
{
var offset = ct.BlobAssetRefOffsets[i].Offset;
var blobAssetRefPtr = (BlobAssetReferenceData *)(componentData + offset);
if (blobAssetRefPtr->m_Ptr == null)
{
continue;
}
var blobAssetPtr = new BlobAssetPtr((*(BlobAssetHeader **)blobAssetRefPtr) - 1);
var key = new BlobAssetRefKey {
chunk = chunk, offsetInBuffer = (int)((byte *)blobAssetRefPtr - chunkBuffer)
};
if (!blobAssetMap.TryGetValue(blobAssetPtr, out var blobAssetIndex))
{
blobAssetIndex = blobAssets.Length;
blobAssets.Add(blobAssetPtr);
blobAssetMap.TryAdd(blobAssetPtr, blobAssetIndex);
}
blobAssetRefs.TryAdd(key, blobAssetIndex);
}
}
}
}
}
}
blobAssetMap.Dispose();
}
