361 lines
14 KiB
C#
361 lines
14 KiB
C#
using System;
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using System.IO;
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using UnityEngine;
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namespace YooAsset
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{
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internal class DCFSLoadAssetBundleOperation : FSLoadBundleOperation
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{
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protected enum ESteps
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{
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None,
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CheckExist,
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DownloadFile,
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LoadAssetBundle,
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CheckResult,
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Done,
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}
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protected readonly DefaultCacheFileSystem _fileSystem;
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protected readonly PackageBundle _bundle;
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protected FSDownloadFileOperation _downloadFileOp;
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protected AssetBundleCreateRequest _createRequest;
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private AssetBundle _assetBundle;
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private Stream _managedStream;
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protected ESteps _steps = ESteps.None;
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internal DCFSLoadAssetBundleOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle)
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{
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_fileSystem = fileSystem;
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_bundle = bundle;
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}
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internal override void InternalStart()
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{
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_steps = ESteps.CheckExist;
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}
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internal override void InternalUpdate()
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{
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if (_steps == ESteps.None || _steps == ESteps.Done)
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return;
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if (_steps == ESteps.CheckExist)
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{
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if (_fileSystem.Exists(_bundle))
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{
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DownloadProgress = 1f;
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DownloadedBytes = _bundle.FileSize;
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_steps = ESteps.LoadAssetBundle;
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}
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else
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{
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_steps = ESteps.DownloadFile;
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}
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}
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if (_steps == ESteps.DownloadFile)
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{
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// 注意：边玩边下下载器引用计数没有Release
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if (_downloadFileOp == null)
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{
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DownloadFileOptions options = new DownloadFileOptions(int.MaxValue, 60);
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_downloadFileOp = _fileSystem.DownloadFileAsync(_bundle, options);
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_downloadFileOp.StartOperation();
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AddChildOperation(_downloadFileOp);
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}
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if (IsWaitForAsyncComplete)
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_downloadFileOp.WaitForAsyncComplete();
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_downloadFileOp.UpdateOperation();
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DownloadProgress = _downloadFileOp.DownloadProgress;
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DownloadedBytes = _downloadFileOp.DownloadedBytes;
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if (_downloadFileOp.IsDone == false)
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return;
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if (_downloadFileOp.Status == EOperationStatus.Succeed)
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{
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_steps = ESteps.LoadAssetBundle;
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}
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else
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = _downloadFileOp.Error;
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}
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}
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if (_steps == ESteps.LoadAssetBundle)
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{
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if (_bundle.Encrypted)
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{
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if (_fileSystem.DecryptionServices == null)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"The {nameof(IDecryptionServices)} is null !";
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YooLogger.Error(Error);
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return;
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}
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}
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if (IsWaitForAsyncComplete)
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{
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if (_bundle.Encrypted)
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{
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var decryptResult = _fileSystem.LoadEncryptedAssetBundle(_bundle);
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_assetBundle = decryptResult.Result;
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_managedStream = decryptResult.ManagedStream;
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}
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else
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{
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string filePath = _fileSystem.GetCacheBundleFileLoadPath(_bundle);
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_assetBundle = AssetBundle.LoadFromFile(filePath);
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}
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}
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else
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{
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if (_bundle.Encrypted)
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{
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var decryptResult = _fileSystem.LoadEncryptedAssetBundleAsync(_bundle);
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_createRequest = decryptResult.CreateRequest;
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_managedStream = decryptResult.ManagedStream;
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}
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else
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{
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string filePath = _fileSystem.GetCacheBundleFileLoadPath(_bundle);
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_createRequest = AssetBundle.LoadFromFileAsync(filePath);
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}
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}
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_steps = ESteps.CheckResult;
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}
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if (_steps == ESteps.CheckResult)
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{
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if (_createRequest != null)
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{
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if (IsWaitForAsyncComplete)
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{
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// 强制挂起主线程（注意：该操作会很耗时）
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YooLogger.Warning("Suspend the main thread to load unity bundle.");
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_assetBundle = _createRequest.assetBundle;
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}
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else
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{
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if (_createRequest.isDone == false)
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return;
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_assetBundle = _createRequest.assetBundle;
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}
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}
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if (_assetBundle != null)
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{
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_steps = ESteps.Done;
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Result = new AssetBundleResult(_fileSystem, _bundle, _assetBundle, _managedStream);
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Status = EOperationStatus.Succeed;
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return;
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}
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// 注意：当缓存文件的校验等级为Low的时候，并不能保证缓存文件的完整性。
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// 说明：在AssetBundle文件加载失败的情况下，我们需要重新验证文件的完整性！
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EFileVerifyResult verifyResult = _fileSystem.VerifyCacheFile(_bundle);
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if (verifyResult == EFileVerifyResult.Succeed)
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{
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if (_bundle.Encrypted)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"Failed to load encrypted asset bundle file : {_bundle.BundleName}";
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YooLogger.Error(Error);
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return;
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}
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// 注意：在安卓移动平台，华为和三星真机上有极小概率加载资源包失败。
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// 说明：大多数情况在首次安装下载资源到沙盒内，游戏过程中切换到后台再回到游戏内有很大概率触发！
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string filePath = _fileSystem.GetCacheBundleFileLoadPath(_bundle);
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byte[] fileData = FileUtility.ReadAllBytes(filePath);
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if (fileData != null && fileData.Length > 0)
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{
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_assetBundle = AssetBundle.LoadFromMemory(fileData);
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if (_assetBundle == null)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"Failed to load asset bundle from memory : {_bundle.BundleName}";
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YooLogger.Error(Error);
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}
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else
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{
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_steps = ESteps.Done;
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Result = new AssetBundleResult(_fileSystem, _bundle, _assetBundle, null);
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Status = EOperationStatus.Succeed;
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}
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}
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else
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"Failed to read asset bundle file bytes : {_bundle.BundleName}";
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YooLogger.Error(Error);
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}
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}
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else
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{
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_steps = ESteps.Done;
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_fileSystem.DeleteCacheBundleFile(_bundle.BundleGUID);
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Status = EOperationStatus.Failed;
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Error = $"Find corrupted asset bundle file and delete : {_bundle.BundleName}";
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YooLogger.Error(Error);
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}
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}
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}
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internal override void InternalWaitForAsyncComplete()
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{
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while (true)
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{
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if (ExecuteWhileDone())
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{
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if (_downloadFileOp != null && _downloadFileOp.Status == EOperationStatus.Failed)
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YooLogger.Error($"Try load bundle {_bundle.BundleName} from remote !");
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_steps = ESteps.Done;
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break;
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}
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}
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}
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}
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internal class DCFSLoadRawBundleOperation : FSLoadBundleOperation
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{
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protected enum ESteps
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{
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None,
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CheckExist,
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DownloadFile,
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LoadCacheRawBundle,
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Done,
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}
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protected readonly DefaultCacheFileSystem _fileSystem;
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protected readonly PackageBundle _bundle;
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protected FSDownloadFileOperation _downloadFileOp;
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protected ESteps _steps = ESteps.None;
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internal DCFSLoadRawBundleOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle)
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{
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_fileSystem = fileSystem;
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_bundle = bundle;
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}
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internal override void InternalStart()
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{
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_steps = ESteps.CheckExist;
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}
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internal override void InternalUpdate()
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{
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if (_steps == ESteps.None || _steps == ESteps.Done)
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return;
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if (_steps == ESteps.CheckExist)
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{
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if (_fileSystem.Exists(_bundle))
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{
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// 注意：缓存的原生文件的格式，可能会在业务端根据需求发生变动！
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// 注意：这里需要校验文件格式，如果不一致对本地文件进行修正！
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string filePath = _fileSystem.GetCacheBundleFileLoadPath(_bundle);
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if (File.Exists(filePath) == false)
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{
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try
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{
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var recordFileElement = _fileSystem.GetRecordFileElement(_bundle);
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File.Move(recordFileElement.DataFilePath, filePath);
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_steps = ESteps.LoadCacheRawBundle;
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}
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catch (Exception e)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"Faild rename raw data file : {e.Message}";
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}
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}
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else
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{
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DownloadProgress = 1f;
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DownloadedBytes = _bundle.FileSize;
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_steps = ESteps.LoadCacheRawBundle;
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}
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}
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else
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{
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_steps = ESteps.DownloadFile;
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}
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}
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if (_steps == ESteps.DownloadFile)
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{
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// 注意：边玩边下下载器引用计数没有Release
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if (_downloadFileOp == null)
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{
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DownloadFileOptions options = new DownloadFileOptions(int.MaxValue, 60);
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_downloadFileOp = _fileSystem.DownloadFileAsync(_bundle, options);
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_downloadFileOp.StartOperation();
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AddChildOperation(_downloadFileOp);
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}
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if (IsWaitForAsyncComplete)
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_downloadFileOp.WaitForAsyncComplete();
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_downloadFileOp.UpdateOperation();
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DownloadProgress = _downloadFileOp.DownloadProgress;
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DownloadedBytes = _downloadFileOp.DownloadedBytes;
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if (_downloadFileOp.IsDone == false)
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return;
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if (_downloadFileOp.Status == EOperationStatus.Succeed)
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{
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_steps = ESteps.LoadCacheRawBundle;
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}
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else
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = _downloadFileOp.Error;
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}
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}
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if (_steps == ESteps.LoadCacheRawBundle)
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{
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string filePath = _fileSystem.GetCacheBundleFileLoadPath(_bundle);
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if (File.Exists(filePath))
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{
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_steps = ESteps.Done;
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Result = new RawBundleResult(_fileSystem, _bundle);
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Status = EOperationStatus.Succeed;
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}
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else
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"Can not found cache raw bundle file : {filePath}";
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YooLogger.Error(Error);
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}
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}
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}
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internal override void InternalWaitForAsyncComplete()
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{
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while (true)
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{
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if (ExecuteWhileDone())
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{
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//TODO 拷贝本地文件失败也会触发该错误！
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if (_downloadFileOp != null && _downloadFileOp.Status == EOperationStatus.Failed)
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YooLogger.Error($"Try load bundle {_bundle.BundleName} from remote !");
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_steps = ESteps.Done;
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break;
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}
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}
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}
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}
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} |