Move StbImage to its own assembly.

Dashboard.Common/Drawing/IImageLoader.cs

@@ -0,0 +1,61 @@
+using Dashboard.Pal;
+
+namespace Dashboard.Drawing
+{
+    public record ImageData(
+        TextureType Type,
+        PixelFormat Format,
+        int Width,
+        int Height,
+        byte[] Bitmap)
+    {
+        public int Depth { get; init; } = 1;
+        public int Levels { get; init; } = 1;
+        public bool Premultiplied { get; init; } = false;
+        public int Alignment { get; init; } = 4;
+
+        public long GetLevelOffset(int level)
+        {
+            ArgumentOutOfRangeException.ThrowIfLessThan(level, 0, nameof(level));
+            ArgumentOutOfRangeException.ThrowIfGreaterThan(level, Levels, nameof(level));
+            ArgumentOutOfRangeException.ThrowIfGreaterThan(level, Math.ILogB(Math.Max(Width, Height)));
+
+            long offset = 0;
+
+            long row = Width * Format switch
+            {
+                PixelFormat.R8I => 1,
+                PixelFormat.R16F => 2,
+                PixelFormat.Rg8I => 2,
+                PixelFormat.Rg16F => 4,
+                PixelFormat.Rgb8I => 3,
+                PixelFormat.Rgb16F => 6,
+                PixelFormat.Rgba8I => 4,
+                PixelFormat.Rgba16F => 8,
+            };
+
+            row += Alignment - (row % Alignment);
+            long plane = row * Height;
+            long volume = plane * Depth;
+
+            for (int i = 0; i < level; i++)
+            {
+                if (Depth == 1)
+                {
+                    offset += plane / (1 << i) / (1 << i);
+                }
+                else
+                {
+                    offset += volume / (1 << i) / (1 << i) / (1 << i);
+                }
+            }
+
+            return offset;
+        }
+    }
+
+    public interface IImageLoader : IApplicationExtension
+    {
+        public ImageData LoadImageData(Stream stream);
+    }
+}

Dashboard.StbImage/Dashboard.StbImage.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net8.0</TargetFramework>
+        <LangVersion>latest</LangVersion>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\Dashboard.Common\Dashboard.Common.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="ReFuel.StbImage" Version="2.1.0" />
+    </ItemGroup>
+
+</Project>

Dashboard.StbImage/StbImageLoader.cs

@@ -0,0 +1,47 @@
+using Dashboard.Drawing;
+using Dashboard.Pal;
+using ReFuel.Stb;
+
+namespace Dashboard.StbImage
+{
+    public class StbImageLoader : IImageLoader
+    {
+        public string DriverName { get; } = "Dashboard Stb Image Loader";
+        public string DriverVendor { get; } = "Dashboard";
+        public Version DriverVersion { get; } = new Version(1, 0);
+
+        public void Dispose()
+        {
+        }
+
+        IContextBase IContextExtensionBase.Context => Context;
+
+        public void Require(Application context)
+        {
+            Context = context;
+        }
+
+        public ImageData LoadImageData(Stream stream)
+        {
+            using ReFuel.Stb.StbImage image = ReFuel.Stb.StbImage.Load(stream, StbiImageFormat.Rgba);
+            ReadOnlySpan<byte> data = image.AsSpan<byte>();
+            return new ImageData(TextureType.Texture2D, image.Format switch
+                {
+                    StbiImageFormat.GreyAlpha => PixelFormat.Rg8I,
+                    StbiImageFormat.Rgb => PixelFormat.Rgb8I,
+                    StbiImageFormat.Rgba => PixelFormat.Rgba8I,
+                    _ => PixelFormat.R8I,
+                },
+                image.Width,
+                image.Height,
+                data.ToArray());
+        }
+
+        public Application Context { get; private set; } = null!;
+
+        void IContextExtensionBase.Require(IContextBase context)
+        {
+            Require((Application)context);
+        }
+    }
+}

Dashboard.sln

@@ -27,6 +27,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Dashboard.OpenTK", "Dashboa
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Dashboard.OpenGL", "Dashboard.OpenGL\Dashboard.OpenGL.csproj", "{33EB657C-B53A-41B4-BC3C-F38C09ABA577}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Dashboard.StbImage", "Dashboard.StbImage\Dashboard.StbImage.csproj", "{85BCEB9E-DEC2-4A53-B2DA-6BFC6F3EE4E7}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -65,6 +67,11 @@ Global
 		{33EB657C-B53A-41B4-BC3C-F38C09ABA577}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{33EB657C-B53A-41B4-BC3C-F38C09ABA577}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{33EB657C-B53A-41B4-BC3C-F38C09ABA577}.Release|Any CPU.Build.0 = Release|Any CPU
+		{85BCEB9E-DEC2-4A53-B2DA-6BFC6F3EE4E7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{85BCEB9E-DEC2-4A53-B2DA-6BFC6F3EE4E7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{85BCEB9E-DEC2-4A53-B2DA-6BFC6F3EE4E7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{85BCEB9E-DEC2-4A53-B2DA-6BFC6F3EE4E7}.Release|Any CPU.Build.0 = Release|Any CPU
+		{14616F42-663B-4673-8561-5637FAD1B22F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -72,5 +79,6 @@ Global
 	GlobalSection(NestedProjects) = preSolution
 		{7C90B90B-DF31-439B-9080-CD805383B014} = {9D6CCC74-4DF3-47CB-B9B2-6BB75DF2BC40}
 		{7B064228-2629-486E-95C6-BDDD4B4602C4} = {9B62A92D-ABF5-4704-B831-FD075515A82F}
+		{85BCEB9E-DEC2-4A53-B2DA-6BFC6F3EE4E7} = {9B62A92D-ABF5-4704-B831-FD075515A82F}
 	EndGlobalSection
 EndGlobal

Dashboard/Controls/Form.cs

@@ -1,6 +1,5 @@
 using System;
 using Dashboard.Drawing;
-using Dashboard.Resources;
 using Dashboard.Windowing;
 
 namespace Dashboard.Controls

Dashboard/Dashboard.csproj

@@ -12,8 +12,4 @@
     <EmbeddedResource Include="Resources\**\*.png"/>
   </ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="ReFuel.StbImage" Version="2.1.0" />
-  </ItemGroup>
-
 </Project>

tests/Dashboard.TestApplication/Program.cs

@@ -1,22 +1,16 @@
-using Dashboard.Drawing;
+using System.Drawing;
-using System.Drawing;
 using System.Text;
-using Dashboard.Drawing.OpenGL;
+using Dashboard.Controls;
-using Dashboard.ImmediateUI;
+using Dashboard.Drawing;
+using Dashboard.Drawing.OpenGL.Pal;
 using Dashboard.OpenTK.PAL2;
-using OpenTK.Platform;
+using Dashboard.Pal;
+using Dashboard.StbImage;
 using OpenTK.Graphics.OpenGL;
 using OpenTK.Mathematics;
-using Box2d = Dashboard.Box2d;
+using OpenTK.Platform;
+using Image = Dashboard.Drawing.Image;
 using TK = OpenTK.Platform.Toolkit;
-using Dashboard;
-using Dashboard.Controls;
-using Dashboard.Drawing.OpenGL.Pal;
-using Dashboard.Pal;
-using Dashboard.Windowing;
-using OpenTK.Windowing.GraphicsLibraryFramework;
-using ReFuel.Stb;
-using Image = Dashboard.Resources.Image;
 using Vector4 = System.Numerics.Vector4;
 
 TK.Init(new ToolkitOptions()
@@ -66,6 +60,7 @@ List<Vector3> points = new List<Vector3>();
 StringBuilder builder = new StringBuilder();
 
 app.Initialize();
+app.ExtensionRequire<StbImageLoader>();
 
 window = (PhysicalWindow)app.CreatePhysicalWindow();