Setting window image icon

Hypercube.Client/Graphics/Rendering/Renderer.Render.cs

@@ -32,7 +32,7 @@ public sealed partial class Renderer
     private void OnLoad()
     {
         _baseShader = new Shader("Resources/Shaders/base");
-        _baseTexture = _textureManager.CreateHandler("Resources/Textures/opengl_logo.png");
+        _baseTexture = _textureManager.CreateHandler("Resources/Textures/icon.png");
         _baseTexture.Bind();
 
         _vbo = new BufferObject(BufferTarget.ArrayBuffer);

Hypercube.Client/Graphics/Rendering/Renderer.cs

@@ -93,6 +93,10 @@ private void OnStartup(RuntimeStartupEvent args)
             break;
         }
 
+        var windowIcons = _windowManager.LoadWindowIcon(_textureManager, "Resources/Icons").ToList();
+        _windowManager.SetWindowIcons(MainWindow, windowIcons);
+
+
         InitOpenGL();
 
         OnLoad();

Hypercube.Client/Graphics/Texturing/ITextureManager.cs

@@ -3,6 +3,13 @@
 public interface ITextureManager
 {
     ITexture Create(string path);
+    /// <summary>
+    /// Creates ITexture, allows to set flipping mode
+    /// </summary>
+    /// <param name="path">Path to image</param>
+    /// <param name="doFlip"><a href="https://www.youtube.com/watch?v=WQuL95_ckDo">DO FLIP</a></param>
+    /// <returns>ITexture</returns>
+    ITexture Create(string path, bool doFlip);
 
     ITextureHandle CreateHandler(string path);
     ITextureHandle CreateHandler(ITexture texture);

Hypercube.Client/Graphics/Texturing/TextureManager.cs

@@ -15,6 +15,16 @@ public ITexture Create(string path)
         return Create(ImageResult.FromStream(stream, ColorComponents.RedGreenBlueAlpha));
     }
 
+    public ITexture Create(string path, bool doFlip)
+    {
+        if (doFlip)
+            StbImage.stbi_set_flip_vertically_on_load(0);
+        var texture = Create(path);
+
+        StbImage.stbi_set_flip_vertically_on_load(1);
+        return texture;
+    }
+
     public ITextureHandle CreateHandler(ITexture texture)
     {
         return new TextureHandle(texture);

Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Window.cs

@@ -1,9 +1,12 @@
 using System.Diagnostics.CodeAnalysis;
+using System.Runtime.InteropServices;
 using Hypercube.Client.Graphics.OpenGL;
+using Hypercube.Client.Graphics.Texturing;
 using Hypercube.Client.Graphics.Windows.Manager.Registrations;
 using Hypercube.Client.Utilities;
 using OpenTK.Windowing.Common;
 using OpenTK.Windowing.GraphicsLibraryFramework;
+using GlfwImage = OpenTK.Windowing.GraphicsLibraryFramework.Image;
 using Monitor = OpenTK.Windowing.GraphicsLibraryFramework.Monitor;
 
 namespace Hypercube.Client.Graphics.Windows.Manager;
@@ -105,7 +108,7 @@ public WindowCreateResult WindowCreate(ContextInfo? context, WindowCreateSetting
         return new WindowCreateResult(WindowSetup(window), null);
     }
 
-     private GlfwWindowRegistration WindowSetup(Window* window)
+     private GlfwWindowRegistration WindowSetup(Window* window, WindowCreateSettings settings)
      {
          GLFWHelper.GetFramebufferSize(window, out var framebufferSize);
          GLFWHelper.GetWindowSize(window, out var size);
@@ -121,14 +124,17 @@ private GlfwWindowRegistration WindowSetup(Window* window)
          };
 
          registration.Handle = new WindowHandle(_renderer, registration);
-
+
+         // Setting icons
+         if (settings.WindowImages != null)
+             SetWindowIcons(registration, settings.WindowImages.ToList());
+
          // Setting callbacks
          GLFW.SetKeyCallback(window, OnWindowKeyHandled);
          GLFW.SetWindowCloseCallback(window, OnWindowClosed);
          GLFW.SetWindowSizeCallback(window, OnWindowResized);
          GLFW.SetWindowFocusCallback(window, OnWindowFocusChanged);
 
-
          return registration;
      }
 
@@ -178,5 +184,36 @@ private bool TryGetWindow(Window* window, [NotNullWhen(true)] out GlfwWindowRegi
 
          return null;
      }
-
+
+     public IEnumerable<ITexture> LoadWindowIcon(ITextureManager textureMan, string resPath)
+     {
+         var files = Directory.EnumerateFiles(resPath, "*.png");
+
+         foreach (var file in files)
+         {
+             yield return textureMan.Create(file, true);
+         }
+     }
+
+     public void SetWindowIcons(WindowRegistration window, List<ITexture> images)
+     {
+         if (window is not GlfwWindowRegistration glfwWindow)
+             return;
+
+         var count = images.Count;
+
+         // ReSharper disable once SuggestVarOrType_Elsewhere
+         Span<GCHandle> handles = stackalloc GCHandle[count];
+         Span<GlfwImage> glfwImages = stackalloc GlfwImage[count];
+
+         for (var i = 0; i < count; i++)
+         {
+             var image = images[i];
+             handles[i] = GCHandle.Alloc(image.Data, GCHandleType.Pinned);
+             var addrOfPinnedObject = (byte*) handles[i].AddrOfPinnedObject();
+             glfwImages[i] = new GlfwImage(image.Width, image.Height, addrOfPinnedObject);
+         }
+
+         GLFW.SetWindowIcon(glfwWindow.Pointer, glfwImages);
+     }
 }

Hypercube.Client/Graphics/Windows/Manager/IWindowManager.cs

@@ -1,5 +1,6 @@
 using Hypercube.Client.Graphics.Monitors;
 using Hypercube.Client.Graphics.OpenGL;
+using Hypercube.Client.Graphics.Texturing;
 using Hypercube.Shared.Math.Vector;
 
 namespace Hypercube.Client.Graphics.Windows.Manager;
@@ -29,6 +30,8 @@ public interface IWindowManager : IDisposable
     void WindowSetVisible(WindowRegistration registration, bool visible);
     void WindowSetSize(WindowRegistration registration, Vector2Int size);
     void WindowSwapBuffers(WindowRegistration window);
+    IEnumerable<ITexture> LoadWindowIcon(ITextureManager textureMan, string resPath);
+    void SetWindowIcons(WindowRegistration window, List<ITexture> images);
 
     nint GetProcAddress(string procName);
 }

Hypercube.Client/Graphics/Windows/WindowCreateSettings.cs

@@ -1,4 +1,5 @@
 using Hypercube.Client.Graphics.Monitors;
+using Hypercube.Client.Graphics.Texturing;
 using Hypercube.Shared.Math.Vector;
 
 namespace Hypercube.Client.Graphics.Windows;
@@ -10,7 +11,8 @@ public class WindowCreateSettings
 
     public string Title = "Hypercube Window";
     public Vector2Int Size = new(1280, 720);
-
+    public ITexture[]? WindowImages = null;
+
     public IMonitorHandle? Monitor;
 
     public bool Resizable = true;