EditorContentManager Part 1

2026-09-05 21:01:52 +00:00 · 2023-01-01 16:53:45 +01:00
parent dffd43a36f
commit c389a77274
29 changed files with 3774 additions and 81 deletions
@@ -0,0 +1,154 @@
+using System;
+using System.Collections;
+using Bon;
+using System.IO;
+using GlitchyEngine;
+using GlitchyEngine.Content;
+using GlitchyEngine.Renderer;
+using GlitchyEngine.Math;
+using DirectXTK;
+
+namespace GlitchyEditor.Assets;
+
+[BonTarget, BonPolyRegister]
+class EditorTextureAssetLoaderConfig : AssetLoaderConfig
+{
+	[BonInclude]
+	private bool _generateMipMaps;
+
+	[BonInclude]
+	private SamplerStateDescription _samplerStateDescription = .();
+
+	public bool GenerateMipMaps
+	{
+		get => _generateMipMaps;
+		set => SetIfChanged(ref _generateMipMaps, value);
+	}
+
+	public SamplerStateDescription SamplerStateDescription
+	{
+		get => _samplerStateDescription;
+		set => SetIfChanged(ref _samplerStateDescription, value);
+	}
+}
+
+class EditorTextureAssetLoader : IAssetLoader
+{
+	private static readonly List<StringView> _fileExtensions = new .(){".png", ".dds"} ~ delete _; // ".jpg", ".bmp"
+
+	public static List<StringView> FileExtensions => _fileExtensions;
+
+	public AssetLoaderConfig GetDefaultConfig()
+	{
+		return new EditorTextureAssetLoaderConfig();
+	}
+
+	public IRefCounted LoadAsset(Stream data, AssetLoaderConfig config)
+	{
+		var config;
+
+		if (config == null)
+		{
+			config = GetDefaultConfig();
+			defer:: delete config;
+		}
+
+		Log.EngineLogger.AssertDebug(config is EditorTextureAssetLoaderConfig, "config has wrong type.");
+
+		return LoadTexture(data, (EditorTextureAssetLoaderConfig)config);
+	}
+	
+	const String PngMagicWord = "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A";
+	const String DdsMagicWord = "DDS ";
+
+	private static Texture LoadTexture(Stream data, EditorTextureAssetLoaderConfig config)
+	{
+		Debug.Profiler.ProfileResourceFunction!();
+
+		var readResult = data.Read<char8[8]>();
+
+		data.Position = 0;
+
+		char8[8] magicWord;
+
+		Texture texture = null;
+
+		if (readResult case .Ok(out magicWord))
+		{
+			StringView strView = .(&magicWord, magicWord.Count);
+
+			if (strView.StartsWith(PngMagicWord))
+			{
+				texture = LoadPng(data, config);
+			}
+			else if (strView.StartsWith(DdsMagicWord))
+			{
+				texture = LoadDds(data, config);
+			}
+			else
+			{
+				Runtime.FatalError("Unknown image format.");
+			}
+		}
+
+		Log.EngineLogger.AssertDebug(texture != null);
+
+		/*SamplerStateDescription samplerDesc = .()
+		{
+			MinFilter = config.MinFilter,
+			MagFilter = config.MagFilter,
+			MipFilter = config.MipFilter,
+			AddressModeU = config.WrapModeU,
+			AddressModeV = config.WrapModeV,
+			AddressModeW = config.WrapModeW
+		};*/
+
+		SamplerState sam = SamplerStateManager.GetSampler(config.SamplerStateDescription);
+
+		texture.SamplerState = sam;
+
+		sam.ReleaseRef();
+
+		return texture;
+	}
+
+	private static Texture LoadPng(Stream data, EditorTextureAssetLoaderConfig config)
+	{
+		Debug.Profiler.ProfileResourceFunction!();
+
+		uint8[] pngData = new:ScopedAlloc! uint8[data.Length];
+
+		var result = data.TryRead(pngData);
+
+		if (result case .Err(let err))
+		{
+			Log.EngineLogger.Error($"Failed to read data from stream. Texture: Error: {err}");
+		}
+
+		uint8* rawData = ?;
+		uint32 width = 0, height = 0;
+
+		uint32 errorCode = LodePng.LodePng.Decode32(&rawData, &width, &height, pngData.Ptr, (.)pngData.Count);
+
+		Log.EngineLogger.Assert(errorCode == 0, "Failed to load png File");
+
+		// TODO: load as SRGB because PNGs are usually not stored as linear
+		//Texture2DDesc desc = .(width, height, srgb? .R8G8B8A8_UNorm_SRGB : .R8G8B8A8_UNorm, 1, 1, .Immutable);
+		Texture2DDesc desc = .(width, height, .R8G8B8A8_UNorm, 1, 1, .Immutable);
+		Texture2D texture = new Texture2D(desc);
+		texture.SetData<Color>((.)rawData);
+
+		// TODO: Generate mip maps
+
+		LodePng.LodePng.Free(rawData);
+
+		return texture;
+	}
+	
+	private static Texture LoadDds(Stream data, EditorTextureAssetLoaderConfig config)
+	{
+		Texture2D texture = new [Friend]Texture2D(data);
+
+		return texture;
+	}
+}