Updated MapsforgeTiles projects

MapsforgeTiles/Shared/MapsforgeTileSource.cs

@@ -0,0 +1,31 @@
+using System.Threading.Tasks;
+#if WPF
+using System.Windows.Media;
+#elif UWP
+using Windows.UI.Xaml.Media;
+#elif WINUI
+using Microsoft.UI.Xaml.Media;
+#elif AVALONIA
+using ImageSource=Avalonia.Media.IImage;
+#endif
+
+namespace MapControl.MapsforgeTiles
+{
+    public partial class MapsforgeTileSource(string theme, int cacheCapacity = 200) : TileSource
+    {
+        private readonly TileRenderer renderer = new(theme, cacheCapacity);
+
+        public static void Initialize(string mapFilePath, float dpiScale)
+        {
+            TileRenderer.Initialize(mapFilePath, dpiScale);
+        }
+
+        public override Task<ImageSource> LoadImageAsync(int zoomLevel, int column, int row)
+        {
+            var pixels = renderer.RenderTile(zoomLevel, column, row);
+            ImageSource image = pixels != null ? CreateImage(pixels) : null;
+
+            return Task.FromResult(image);
+        }
+    }
+}