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Updated MapsforgeTileSource

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ClemensFischer 2026-02-19 17:20:09 +01:00
parent a1df4d39bb
commit 266f44a0fd
5 changed files with 83 additions and 57 deletions
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33
MapsforgeTiles/WinUI/MapsforgeTileSource.WinUI.cs
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@ -1,9 +1,14 @@
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.WindowsRuntime;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
#if UWP
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Media.Imaging;
#elif WINUI
using Microsoft.UI.Xaml.Media;
using Microsoft.UI.Xaml.Media.Imaging;
#endif
@ -11,20 +16,34 @@ namespace MapControl.MapsforgeTiles
{
public partial class MapsforgeTileSource
{
private static WriteableBitmap CreateImage(int[] pixels)
public override async Task<ImageSource> LoadImageAsync(int zoomLevel, int column, int row)
{
var size = (int)Math.Sqrt(pixels.Length);
ImageSource image = null;
var size = TileRenderer.TileSize;
var bitmap = new WriteableBitmap(size, size);
using var stream = bitmap.PixelBuffer.AsStream();
using var writer = new BinaryWriter(stream);
foreach (var pixel in pixels)
try
{
writer.Write(pixel);
// Run a Task because in WinUI/UWP LoadImageAsync is called in the UI thread.
//
await Task.Run(() =>
{
var pixels = tileRenderer.RenderTile(zoomLevel, column, row);
if (pixels != null)
{
stream.Write(MemoryMarshal.AsBytes(pixels.AsSpan()));
image = bitmap;
}
});
}
catch (Exception ex)
{
Logger?.LogError(ex, "LoadImageAsync");
}
return bitmap;
return image;
}
}
}