241 lines
11 KiB
C#
241 lines
11 KiB
C#
using System.IO;
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using System.Collections;
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using System.Collections.Generic;
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namespace YooAsset
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{
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internal class DeserializeManifestOperation : AsyncOperationBase
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{
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private enum ESteps
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{
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None,
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DeserializeFileHeader,
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PrepareAssetList,
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DeserializeAssetList,
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PrepareBundleList,
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DeserializeBundleList,
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Done,
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}
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private readonly BufferReader _buffer;
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private int _packageAssetCount;
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private int _packageBundleCount;
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private int _progressTotalValue;
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private ESteps _steps = ESteps.None;
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/// <summary>
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/// 解析的清单实例
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/// </summary>
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public PackageManifest Manifest { private set; get; }
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public DeserializeManifestOperation(byte[] binaryData)
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{
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_buffer = new BufferReader(binaryData);
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}
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internal override void InternalOnStart()
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{
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_steps = ESteps.DeserializeFileHeader;
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}
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internal override void InternalOnUpdate()
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{
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if (_steps == ESteps.None || _steps == ESteps.Done)
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return;
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try
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{
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if (_steps == ESteps.DeserializeFileHeader)
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{
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if (_buffer.IsValid == false)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = "Buffer is invalid !";
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return;
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}
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// 读取文件标记
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uint fileSign = _buffer.ReadUInt32();
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if (fileSign != YooAssetSettings.ManifestFileSign)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = "The manifest file format is invalid !";
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return;
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}
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// 读取文件版本
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string fileVersion = _buffer.ReadUTF8();
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if (fileVersion != YooAssetSettings.ManifestFileVersion)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"The manifest file version are not compatible : {fileVersion} != {YooAssetSettings.ManifestFileVersion}";
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return;
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}
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// 读取文件头信息
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Manifest = new PackageManifest();
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Manifest.FileVersion = fileVersion;
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Manifest.EnableAddressable = _buffer.ReadBool();
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Manifest.LocationToLower = _buffer.ReadBool();
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Manifest.IncludeAssetGUID = _buffer.ReadBool();
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Manifest.OutputNameStyle = _buffer.ReadInt32();
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Manifest.BuildPipeline = _buffer.ReadUTF8();
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Manifest.PackageName = _buffer.ReadUTF8();
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Manifest.PackageVersion = _buffer.ReadUTF8();
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// 检测配置
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if (Manifest.EnableAddressable && Manifest.LocationToLower)
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throw new System.Exception("Addressable not support location to lower !");
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_steps = ESteps.PrepareAssetList;
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}
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if (_steps == ESteps.PrepareAssetList)
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{
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_packageAssetCount = _buffer.ReadInt32();
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Manifest.AssetList = new List<PackageAsset>(_packageAssetCount);
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Manifest.AssetDic = new Dictionary<string, PackageAsset>(_packageAssetCount);
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if (Manifest.EnableAddressable)
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Manifest.AssetPathMapping1 = new Dictionary<string, string>(_packageAssetCount * 3);
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else
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Manifest.AssetPathMapping1 = new Dictionary<string, string>(_packageAssetCount * 2);
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if (Manifest.IncludeAssetGUID)
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Manifest.AssetPathMapping2 = new Dictionary<string, string>(_packageAssetCount);
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else
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Manifest.AssetPathMapping2 = new Dictionary<string, string>();
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_progressTotalValue = _packageAssetCount;
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_steps = ESteps.DeserializeAssetList;
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}
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if (_steps == ESteps.DeserializeAssetList)
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{
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while (_packageAssetCount > 0)
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{
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var packageAsset = new PackageAsset();
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packageAsset.Address = _buffer.ReadUTF8();
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packageAsset.AssetPath = _buffer.ReadUTF8();
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packageAsset.AssetGUID = _buffer.ReadUTF8();
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packageAsset.AssetTags = _buffer.ReadUTF8Array();
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packageAsset.BundleID = _buffer.ReadInt32();
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Manifest.AssetList.Add(packageAsset);
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// 注意：我们不允许原始路径存在重名
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string assetPath = packageAsset.AssetPath;
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if (Manifest.AssetDic.ContainsKey(assetPath))
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throw new System.Exception($"AssetPath have existed : {assetPath}");
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else
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Manifest.AssetDic.Add(assetPath, packageAsset);
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// 填充AssetPathMapping1
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{
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string location = packageAsset.AssetPath;
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if (Manifest.LocationToLower)
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location = location.ToLower();
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// 添加原生路径的映射
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if (Manifest.AssetPathMapping1.ContainsKey(location))
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throw new System.Exception($"Location have existed : {location}");
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else
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Manifest.AssetPathMapping1.Add(location, packageAsset.AssetPath);
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// 添加无后缀名路径的映射
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string locationWithoutExtension = Path.ChangeExtension(location, null);
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if (ReferenceEquals(location, locationWithoutExtension) == false)
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{
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if (Manifest.AssetPathMapping1.ContainsKey(locationWithoutExtension))
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YooLogger.Warning($"Location have existed : {locationWithoutExtension}");
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else
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Manifest.AssetPathMapping1.Add(locationWithoutExtension, packageAsset.AssetPath);
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}
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}
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if (Manifest.EnableAddressable)
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{
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string location = packageAsset.Address;
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if (string.IsNullOrEmpty(location) == false)
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{
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if (Manifest.AssetPathMapping1.ContainsKey(location))
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throw new System.Exception($"Location have existed : {location}");
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else
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Manifest.AssetPathMapping1.Add(location, packageAsset.AssetPath);
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}
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}
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// 填充AssetPathMapping2
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if (Manifest.IncludeAssetGUID)
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{
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if (Manifest.AssetPathMapping2.ContainsKey(packageAsset.AssetGUID))
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throw new System.Exception($"AssetGUID have existed : {packageAsset.AssetGUID}");
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else
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Manifest.AssetPathMapping2.Add(packageAsset.AssetGUID, packageAsset.AssetPath);
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}
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_packageAssetCount--;
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Progress = 1f - _packageAssetCount / _progressTotalValue;
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if (OperationSystem.IsBusy)
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break;
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}
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if (_packageAssetCount <= 0)
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{
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_steps = ESteps.PrepareBundleList;
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}
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}
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if (_steps == ESteps.PrepareBundleList)
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{
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_packageBundleCount = _buffer.ReadInt32();
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Manifest.BundleList = new List<PackageBundle>(_packageBundleCount);
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Manifest.BundleDic1 = new Dictionary<string, PackageBundle>(_packageBundleCount);
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Manifest.BundleDic2 = new Dictionary<string, PackageBundle>(_packageBundleCount);
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Manifest.BundleDic3 = new Dictionary<string, PackageBundle>(_packageBundleCount);
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_progressTotalValue = _packageBundleCount;
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_steps = ESteps.DeserializeBundleList;
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}
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if (_steps == ESteps.DeserializeBundleList)
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{
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while (_packageBundleCount > 0)
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{
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var packageBundle = new PackageBundle();
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packageBundle.BundleName = _buffer.ReadUTF8();
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packageBundle.UnityCRC = _buffer.ReadUInt32();
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packageBundle.FileHash = _buffer.ReadUTF8();
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packageBundle.FileCRC = _buffer.ReadUTF8();
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packageBundle.FileSize = _buffer.ReadInt64();
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packageBundle.Encrypted = _buffer.ReadBool();
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packageBundle.Tags = _buffer.ReadUTF8Array();
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packageBundle.DependIDs = _buffer.ReadInt32Array();
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packageBundle.ParseBundle(Manifest);
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Manifest.BundleList.Add(packageBundle);
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Manifest.BundleDic1.Add(packageBundle.BundleName, packageBundle);
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Manifest.BundleDic2.Add(packageBundle.FileName, packageBundle);
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// 注意：原始文件可能存在相同的BundleGUID
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if (Manifest.BundleDic3.ContainsKey(packageBundle.BundleGUID) == false)
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Manifest.BundleDic3.Add(packageBundle.BundleGUID, packageBundle);
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_packageBundleCount--;
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Progress = 1f - _packageBundleCount / _progressTotalValue;
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if (OperationSystem.IsBusy)
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break;
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}
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if (_packageBundleCount <= 0)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Succeed;
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}
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}
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}
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catch (System.Exception e)
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{
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Manifest = null;
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = e.Message;
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}
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}
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}
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} |