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82ab54fb1c
- Moved example texture builder from QAGame tests to RuntimeAssetCache module for reference/documentation purposes. - Changed bucket preloading code to use only cache key as file name (without bucket name). [CL 2605476 by Mikolaj Sieluzycki in Main branch]
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "RuntimeAssetCachePrivatePCH.h"
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#include "RuntimeAssetCacheFilesystemBackend.h"
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#include "RuntimeAssetCacheEntryMetadata.h"
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#include "RuntimeAssetCacheBucket.h"
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FArchive* FRuntimeAssetCacheFilesystemBackend::CreateReadArchive(FName Bucket, const TCHAR* CacheKey)
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{
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return IFileManager::Get().CreateFileReader(CacheKey);
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}
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FArchive* FRuntimeAssetCacheFilesystemBackend::CreateWriteArchive(FName Bucket, const TCHAR* CacheKey)
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{
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return IFileManager::Get().CreateFileWriter(CacheKey);
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}
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FRuntimeAssetCacheFilesystemBackend::FRuntimeAssetCacheFilesystemBackend()
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{
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GConfig->GetString(TEXT("RuntimeAssetCache"), TEXT("PathToRAC"), PathToRAC, GEngineIni);
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PathToRAC = FPaths::GameSavedDir() / PathToRAC;
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}
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bool FRuntimeAssetCacheFilesystemBackend::RemoveCacheEntry(const FName Bucket, const TCHAR* CacheKey)
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{
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return IFileManager::Get().Delete(CacheKey);
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}
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bool FRuntimeAssetCacheFilesystemBackend::ClearCache()
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{
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return IFileManager::Get().DeleteDirectory(*PathToRAC, false, true);
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}
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bool FRuntimeAssetCacheFilesystemBackend::ClearCache(FName Bucket)
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{
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return IFileManager::Get().DeleteDirectory(*FPaths::Combine(*PathToRAC, *Bucket.ToString()), false, true);
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}
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FRuntimeAssetCacheBucket* FRuntimeAssetCacheFilesystemBackend::PreLoadBucket(FName BucketName, int32 BucketSize)
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{
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FString Path = FPaths::Combine(*PathToRAC, *BucketName.ToString());
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FRuntimeAssetCacheBucket* Result = new FRuntimeAssetCacheBucket(BucketSize);
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class FRuntimeAssetCacheFilesystemBackendDirectoryVisitor : public IPlatformFile::FDirectoryVisitor
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{
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public:
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FRuntimeAssetCacheFilesystemBackendDirectoryVisitor(FRuntimeAssetCacheBucket* InBucket, FName InBucketName, FRuntimeAssetCacheFilesystemBackend* InBackend)
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: Bucket(InBucket)
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, BucketName(InBucketName)
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, Backend(InBackend)
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{ }
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virtual bool Visit(const TCHAR* FilenameOrDirectory, bool bIsDirectory)
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{
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if (bIsDirectory)
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{
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return true;
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}
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FArchive* Ar = Backend->CreateReadArchive(BucketName, FilenameOrDirectory);
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FCacheEntryMetadata* Metadata = Backend->PreloadMetadata(Ar);
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Bucket->AddMetadataEntry(*FPaths::GetBaseFilename(FilenameOrDirectory), Metadata, true);
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delete Ar;
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return true;
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}
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private:
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FRuntimeAssetCacheBucket* Bucket;
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FName BucketName;
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FRuntimeAssetCacheFilesystemBackend* Backend;
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} Visitor(Result, BucketName, this);
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IFileManager::Get().IterateDirectory(*Path, Visitor);
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return Result;
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}
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