Convert texture asset and save to cache

GlitchyEditor/src/Assets/AssetCache.bf

@@ -4,6 +4,7 @@ using System.IO;
 using System.Collections;
 using GlitchyEngine.Core;
 using GlitchyEngine.Content;
+using System.IO;
 
 namespace GlitchyEditor.Assets;
 
@@ -21,7 +22,9 @@ class CachedAsset
 	public AssetType AssetType;
 	public int64 CompressedByteCount;
 	public int64 UncompressedByteCount;
-	public String AssetIdentifier ~ delete _;
+	public AssetIdentifier AssetIdentifier ~ delete _;
+
+	public int32 DataOffset;
 
 	public const String CacheFileExtension = ".laf";
 }
@@ -93,6 +96,7 @@ class AssetCache
 				Log.EngineLogger.Error($"Failed to read cached asset file \"filePath\".");
 
 				delete cachedAsset;
+				continue;
 			}
 
 			_assets.Add(cachedAsset.Handle, cachedAsset);
@@ -129,29 +133,101 @@ class AssetCache
 		cachedAsset.CompressedByteCount = Try!(stream.Read<int64>());
 		cachedAsset.UncompressedByteCount = Try!(stream.Read<int64>());
 
-		int32 assetIdentifierByteCount = Try!(stream.Read<int32>());
+		int16 assetIdentifierByteCount = Try!(stream.Read<int16>());
 
-		cachedAsset.AssetIdentifier = new String(assetIdentifierByteCount);
-		cachedAsset.AssetIdentifier.PadLeft(assetIdentifierByteCount);
-		Span<char8> charSpan = cachedAsset.AssetIdentifier;
+		String assetIdentifier = scope String(assetIdentifierByteCount);
+		assetIdentifier.PadLeft(assetIdentifierByteCount);
+		Span<char8> charSpan = assetIdentifier;
 		int readBytes = Try!(stream.TryRead(Span<uint8>((uint8*)charSpan.Ptr, charSpan.Length)));
 
+		cachedAsset.AssetIdentifier = new AssetIdentifier(assetIdentifier);
+
 		if (readBytes != assetIdentifierByteCount)
 		{
 			Log.EngineLogger.Warning($"Expected to read {assetIdentifierByteCount} bytes for the asset identifier, but read {readBytes} instead.");
 		}
 
+		cachedAsset.DataOffset = (.)stream.Position;
+
 		return .Ok;
 	}
 
-	public CachedAsset GetCacheEntry(AssetHandle id)
+	public CachedAsset GetCacheEntry(AssetHandle assetHandle)
 	{
 		if (!_cacheLoaded)
 			ReloadCache();
 
-		if (_assets.TryGetValue(id, let cachedAsset))
+		if (_assets.TryGetValue(assetHandle, let cachedAsset))
 			return cachedAsset;
 
 		return null;
 	}
+
+	private void GetCacheFilePath(AssetHandle handle, String outFilePath)
+	{
+		outFilePath.Append(_directory);
+		outFilePath.Append(Path.DirectorySeparatorChar);
+		outFilePath.Append(handle);
+		outFilePath.Append(CachedAsset.CacheFileExtension);
+	}
+
+	public Result<void> SaveAsset(CachedAsset assetInfo, Span<uint8> data)
+	{
+		CachedAsset asset = GetCacheEntry(assetInfo.Handle);
+
+		if (asset == null)
+		{
+			asset = new CachedAsset();
+			asset.Handle = assetInfo.Handle;
+			asset.FilePath = new String(128);
+			GetCacheFilePath(asset.Handle, asset.FilePath);
+			_assets[asset.Handle] = asset;
+		}
+
+		delete asset.AssetIdentifier;
+		asset.AssetIdentifier = new AssetIdentifier(assetInfo.AssetIdentifier);
+
+		asset.FormatVersion = FormatVersion;
+		asset.Compression = assetInfo.Compression;
+		asset.AssetType = assetInfo.AssetType;
+		asset.CreationTimestamp = assetInfo.CreationTimestamp;
+
+		asset.UncompressedByteCount = data.Length;
+
+		Span<uint8> dataToWrite;
+
+		switch (asset.Compression)
+		{
+		case .L4Z:
+			// TODO: L4Z
+			Runtime.NotImplemented();
+			// asset.CompressedByteCount = compressedData.Length;
+		case .None:
+			asset.CompressedByteCount = data.Length;
+			dataToWrite = data;
+		}
+
+		FileStream writer = scope .();
+		Try!(writer.Create(asset.FilePath, .Write, .None));
+
+		Try!(writer.Write<char8[3]>(CachedAsset.MagicWord));
+		Try!(writer.Write(FormatVersion));
+		Try!(writer.Write(asset.Handle));
+		Try!(writer.Write(asset.CreationTimestamp));
+		Try!(writer.Write(asset.Compression));
+		Try!(writer.Write(asset.AssetType));
+		Try!(writer.Write<int64>(asset.CompressedByteCount));
+		Try!(writer.Write<int64>(asset.UncompressedByteCount));
+
+		Try!(writer.Write<int16>((int16)asset.AssetIdentifier.FullIdentifier.Length));
+		Try!(writer.Write(asset.AssetIdentifier.FullIdentifier));
+		
+		asset.DataOffset = (.)writer.Position;
+
+		Try!(writer.Write(dataToWrite));
+
+		// TODO: Notify content manager!
+
+		return .Ok;
+	}
 }

GlitchyEditor/src/Assets/AssetConverter.bf

@@ -1,12 +1,15 @@
 using System.Collections;
 using GlitchyEditor.Assets.Importers;
 using GlitchyEngine;
+using System;
+using System.IO;
+using GlitchyEngine.Content;
 
 namespace GlitchyEditor.Assets;
 
 class AssetConverter
 {
-	private append Queue<AssetFile> _queue = .() ~ delete:append _;
+	private append Queue<AssetFile> _queue = .();
 
 	private EditorContentManager _contentManager;
 
@@ -36,15 +39,68 @@ class AssetConverter
 	private void Process(AssetFile assetFile)
 	{
 		IAssetImporter importer = _contentManager.GetAssetImporter(assetFile);
+		IAssetProcessor processor = _contentManager.GetAssetProcessor(assetFile);
+		IAssetExporter exporter = _contentManager.GetAssetExporter(assetFile);
 
 		if (importer == null)
 		{
 			Log.EngineLogger.Error("Importer is null!");
+			return;
+		}
+		
+		if (processor == null)
+		{
+			Log.EngineLogger.Error("Processor is null!");
+			return;
+		}
+		
+		if (exporter == null)
+		{
+			Log.EngineLogger.Error("Exporter is null!");
+			return;
 		}
 
-		ImportedResource importedResource = importer.Import(assetFile.AssetFile.Path,
+		Result<ImportedResource> importResult = importer.Import(assetFile.AssetFile.Path,
 			assetFile.AssetFile.Identifier, assetFile.AssetConfig.ImporterConfig);
 
-		delete importedResource;
+		if (importResult case .Err)
+		{
+			Log.EngineLogger.Error("Failed to import asset!");
+			return;
+		}
+
+		defer { delete importResult.Value; }
+
+		Result<ProcessedResource> processResult = processor.Process(importResult.Value, assetFile.AssetConfig.ProcessorConfig);
+		
+		if (processResult case .Err)
+		{
+			Log.EngineLogger.Error("Failed to process asset!");
+			return;
+		}
+
+		defer { delete processResult.Value; }
+
+		MemoryStream memoryStream = scope .();
+
+		Result<void> exportResult = exporter.Export(memoryStream, processResult.Value, assetFile.AssetConfig.ExporterConfig);
+
+		if (exportResult case .Err)
+		{
+			Log.EngineLogger.Error("Failed to export asset!");
+			return;
+		}
+
+		CachedAsset assetInfo = scope CachedAsset();
+		assetInfo.Handle = assetFile.AssetConfig.AssetHandle;
+		assetInfo.CreationTimestamp = DateTime.UtcNow;
+		assetInfo.Compression = assetFile.AssetConfig.ExporterConfig.Compression;
+		assetInfo.AssetIdentifier = new AssetIdentifier(assetFile.AssetFile.Identifier);
+		assetInfo.AssetType = processResult.Value.AssetType;
+
+		if (_contentManager.AssetCache.SaveAsset(assetInfo, memoryStream.Memory) case .Err)
+		{
+			Log.EngineLogger.Error("Failed to write asset to cache.");
+		}
 	}
 }

GlitchyEditor/src/Assets/Importers/Interfaces.bf

@@ -18,7 +18,7 @@ interface IAssetProcessor
 {
 	AssetProcessorConfig CreateDefaultConfig();
 
-	Result<Object> Process(ImportedResource importedResource, AssetProcessorConfig config);
+	Result<ProcessedResource> Process(ImportedResource importedResource, AssetProcessorConfig config);
 }
 
 interface IAssetExporter

GlitchyEditor/src/Assets/Importers/TextureImporter.bf

@@ -186,6 +186,9 @@ class TextureImporter : IAssetImporter
 		surface.SlicePitch = 0;
 		surface.ArrayIndex = 0;
 		surface.MipLevel = 0;
+		surface.Width = width;
+		surface.Height = height;
+		surface.Depth = 1;
 
 		surfaces.Add(surface);
 
@@ -238,12 +241,14 @@ class TextureProcessorConfig : AssetProcessorConfig
 	}
 }
 
-class ProcessedResource
+abstract class ProcessedResource
 {
 	private AssetIdentifier _assetIdentifier ~ delete _;
 
 	public AssetIdentifier AssetIdentifier => _assetIdentifier;
 
+	public abstract AssetType AssetType {get;}
+
 	public this(AssetIdentifier ownAssetIdentifier)
 	{
 		_assetIdentifier = ownAssetIdentifier;
@@ -262,6 +267,8 @@ class ProcessedTexture : ProcessedResource
 	public int Height = -1;
 	public int Depth = -1;
 
+	public override AssetType AssetType => .Texture;
+
 	public class TextureSurface
 	{
 		public uint8[] PixelData;
@@ -335,17 +342,23 @@ class ProcessedTexture : ProcessedResource
 
 	public void SetSurfaceCount(int arraySize, int mipMapCount)
 	{
-		Log.EngineLogger.AssertDebug(arraySize > Surfaces.GetLength(0));
-		Log.EngineLogger.AssertDebug(mipMapCount > Surfaces.GetLength(1));
+		Log.EngineLogger.AssertDebug(Surfaces == null || arraySize > Surfaces.GetLength(0));
+		Log.EngineLogger.AssertDebug(Surfaces == null ||mipMapCount > Surfaces.GetLength(1));
+
+		ArraySize = arraySize;
+		MipMapCount = mipMapCount;
 
 		TextureSurface[,] oldSurfaces = Surfaces;
 		Surfaces = new TextureSurface[arraySize, mipMapCount];
-		
-		for (int i < oldSurfaces.GetLength(0))
+
+		if (oldSurfaces != null)
 		{
-			for (int j < oldSurfaces.GetLength(1))
+			for (int i < oldSurfaces.GetLength(0))
 			{
-				Surfaces[i, j] = oldSurfaces[i, j];
+				for (int j < oldSurfaces.GetLength(1))
+				{
+					Surfaces[i, j] = oldSurfaces[i, j];
+				}
 			}
 		}
 	}
@@ -358,20 +371,25 @@ class TextureProcessor : IAssetProcessor
 		return new TextureProcessorConfig();
 	}
 
-	public Result<Object> Process(ImportedResource importedObject, AssetProcessorConfig config)
+	public Result<ProcessedResource> Process(ImportedResource importedObject, AssetProcessorConfig config)
 	{
 		Log.EngineLogger.AssertDebug(config is TextureProcessorConfig);
 		Log.EngineLogger.AssertDebug(importedObject is ImportedTexture);
 
-		Try!(ProcessTexture(importedObject as ImportedTexture, config as TextureProcessorConfig));
-
-		return .Ok(null);
+		return Try!(ProcessTexture(importedObject as ImportedTexture, config as TextureProcessorConfig));
 	}
 
-	private Result<void> ProcessTexture(ImportedTexture importedTexture, TextureProcessorConfig config)
+	private Result<ProcessedTexture> ProcessTexture(ImportedTexture importedTexture, TextureProcessorConfig config)
 	{
 		ProcessedTexture processedTexture = new ProcessedTexture(new AssetIdentifier(importedTexture.AssetIdentifier.FullIdentifier));
 
+		processedTexture.Dimension = importedTexture.TextureInfo.Dimension;
+		processedTexture.PixelFormat = (.)importedTexture.TextureInfo.PixelFormat;
+		processedTexture.IsCubeMap = importedTexture.TextureInfo.IsCubeMap;
+		processedTexture.Width = importedTexture.TextureInfo.Width;
+		processedTexture.Height = importedTexture.TextureInfo.Height;
+		processedTexture.Depth = importedTexture.TextureInfo.Depth;
+
 		processedTexture.SetSurfaceCount(importedTexture.TextureInfo.ArraySize, importedTexture.TextureInfo.MipMapCount);
 
 		for (LoadedSurface loadedSurface in importedTexture.Surfaces)
@@ -390,7 +408,7 @@ class TextureProcessor : IAssetProcessor
 
 		// TODO: Pack to BC-Format or what ever was selected.
 
-		return .Ok;
+		return processedTexture;
 	}
 
 	private int CalculateMipMapCount(int width, int height, int depth)

GlitchyEditor/src/EditorContentManager.bf

@@ -27,7 +27,7 @@ class EditorContentManager : IContentManager
 
 	private append AssetHierarchy _assetHierarchy = .(this);
 	private append AssetCache _assetCache = .() ~ delete:append _;
-	private append AssetConverter _assetConverter = .(this) ~ delete:append _;
+	private append AssetConverter _assetConverter = .(this);
 
 	private append List<AssetHandle> _reloadQueue = .();
 	
@@ -469,7 +469,14 @@ class EditorContentManager : IContentManager
 			Log.EngineLogger.Error($"Could not find asset with handle {handle}.");
 			return .Invalid;
 		}
-		
+
+		CachedAsset cacheEntry = _assetCache.GetCacheEntry(handle);
+
+		if (cacheEntry != null)
+		{
+			// TODO: Load asset with new loaders
+		}
+
 		String filePath = scope String(resultNode->Value.Path);
 
 		AssetNode assetNode = resultNode->Value;
@@ -715,6 +722,46 @@ class EditorContentManager : IContentManager
 		return result;
 	}
 
+	public IAssetProcessor GetAssetProcessor(AssetFile file)
+	{
+		IAssetProcessor result = null;
+
+		String typeName = scope .(128);
+
+		for (IAssetProcessor processor in _assetProcessors)
+		{
+			processor.GetType().GetName(typeName..Clear());
+
+			if (typeName == file.AssetConfig.Processor)
+			{
+				result = processor;
+				break;
+			}
+		}
+
+		return result;
+	}
+
+	public IAssetExporter GetAssetExporter(AssetFile file)
+	{
+		IAssetExporter result = null;
+
+		String typeName = scope .(128);
+
+		for (IAssetExporter exporter in _assetExporters)
+		{
+			exporter.GetType().GetName(typeName..Clear());
+
+			if (typeName == file.AssetConfig.Exporter)
+			{
+				result = exporter;
+				break;
+			}
+		}
+
+		return result;
+	}
+
 	public enum SaveAssetError
 	{
 		case Unknown;