149 lines
3.7 KiB
C++
149 lines
3.7 KiB
C++
// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
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#pragma once
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#include "Engine/Core/Types/Guid.h"
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#include "Engine/Core/Types/Pair.h"
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#include "Engine/Core/Types/String.h"
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#if USE_EDITOR
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#include "Engine/Core/Types/DateTime.h"
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#include "Engine/Core/Collections/Array.h"
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#endif
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#include "FlaxChunk.h"
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/// <summary>
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/// Marco that computes chunk flag value from chunk zero-index
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/// </summary>
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#define GET_CHUNK_FLAG(chunkIndex) (1 << chunkIndex)
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typedef uint16 AssetChunksFlag;
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#define ALL_ASSET_CHUNKS MAX_uint16
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/// <summary>
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/// Flax Asset header
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/// </summary>
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struct FLAXENGINE_API AssetHeader
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{
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/// <summary>
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/// Unique asset ID
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/// </summary>
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Guid ID;
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/// <summary>
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/// Asset type name
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/// </summary>
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String TypeName;
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/// <summary>
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/// The asset chunks.
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/// </summary>
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FlaxChunk* Chunks[ASSET_FILE_DATA_CHUNKS];
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public:
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/// <summary>
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/// Initializes a new instance of the <see cref="AssetHeader"/> struct.
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/// </summary>
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AssetHeader()
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{
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// Cleanup all data
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ID = Guid::Empty;
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Platform::MemoryClear(Chunks, sizeof(Chunks));
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}
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public:
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/// <summary>
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/// Gets the chunks.
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/// </summary>
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/// <param name="output">The output data.</param>
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template<typename AllocationType = HeapAllocation>
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void GetChunks(Array<FlaxChunk*, AllocationType>& output) const
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{
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for (int32 i = 0; i < ASSET_FILE_DATA_CHUNKS; i++)
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{
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if (Chunks[i] != nullptr)
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output.Add(Chunks[i]);
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}
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}
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/// <summary>
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/// Gets the chunks that are loaded.
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/// </summary>
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/// <param name="output">The output data.</param>
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template<typename AllocationType = HeapAllocation>
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void GetLoadedChunks(Array<FlaxChunk*, AllocationType>& output) const
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{
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for (int32 i = 0; i < ASSET_FILE_DATA_CHUNKS; i++)
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{
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if (Chunks[i] != nullptr && Chunks[i]->IsLoaded())
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output.Add(Chunks[i]);
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}
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}
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/// <summary>
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/// Gets the amount of created asset chunks.
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/// </summary>
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int32 GetChunksCount() const;
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/// <summary>
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/// Deletes all chunks. Warning! Chunks are managed internally, use with caution!
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/// </summary>
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void DeleteChunks();
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/// <summary>
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/// Unlinks all chunks.
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/// </summary>
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void UnlinkChunks();
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/// <summary>
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/// Gets string with a human-readable info about that header
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/// </summary>
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/// <returns>Header info string</returns>
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String ToString() const;
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};
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/// <summary>
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/// Flax Asset header data
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/// </summary>
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struct FLAXENGINE_API AssetInitData
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{
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/// <summary>
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/// The asset header.
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/// </summary>
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AssetHeader Header;
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/// <summary>
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/// The serialized asset version
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/// </summary>
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uint32 SerializedVersion = 0;
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/// <summary>
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/// The custom asset data (should be small, for eg. texture description structure).
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/// </summary>
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BytesContainer CustomData;
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#if USE_EDITOR
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/// <summary>
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/// The asset metadata information. Stored in a Json format.
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/// </summary>
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BytesContainer Metadata;
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/// <summary>
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/// Asset dependencies list used by the asset for tracking (eg. material functions used by material asset). The pair of asset ID and cached file edit time (for tracking modification).
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/// </summary>
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Array<Pair<Guid, DateTime>> Dependencies;
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#endif
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public:
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/// <summary>
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/// Gets the hash code.
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/// </summary>
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uint32 GetHashCode() const
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{
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// Note: do not use Metadata/Dependencies because it may not be loaded (it's optional)
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uint32 hashCode = GetHash(Header.ID);
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hashCode = (hashCode * 397) ^ SerializedVersion;
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hashCode = (hashCode * 397) ^ CustomData.Length();
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return hashCode;
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}
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};
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