texture viewer

NResUI/Models/TexmExplorerViewModel.cs

@@ -1,4 +1,5 @@
-using TexmLib;
+using Silk.NET.OpenGL;
+using TexmLib;
 
 namespace NResUI.Models;
 
@@ -8,9 +9,15 @@ public class TexmExplorerViewModel
     public string? Error { get; set; }
 
     public TexmFile? TexmFile { get; set; }
-    
+
     public string? Path { get; set; }
-    
+    public List<OpenGlTexture> GlTextures { get; set; } = [];
+
+    private bool _glTexturesDirty = false;
+    public bool IsWhiteBgEnabled;
+
+    public bool IsBlackBgEnabled;
+
     public void SetParseResult(TexmParseResult result, string path)
     {
         Error = result.Error;
@@ -22,6 +29,38 @@ public class TexmExplorerViewModel
 
         TexmFile = result.TexmFile;
         Path = path;
+        _glTexturesDirty = true;
+    }
+
+    /// <summary>
+    /// Сгенерировать OpenGL текстуры из всех мипмапов Texm файла
+    /// </summary>
+    public void GenerateGlTextures(GL gl)
+    {
+        if (_glTexturesDirty && TexmFile is not null)
+        {
+            foreach (var glTexture in GlTextures)
+            {
+                glTexture.Dispose();
+            }
+
+            GlTextures.Clear();
+
+            for (var i = 0; i < TexmFile!.Header.MipmapCount; i++)
+            {
+                var bytes = TexmFile.GetRgba32BytesFromMipmap(i, out var width, out var height);
+
+                var glTexture = new OpenGlTexture(
+                    gl,
+                    width,
+                    height,
+                    bytes
+                );
+
+                GlTextures.Add(glTexture);
+            }
+
+            _glTexturesDirty = false;
+        }
     }
-    
 }