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Updated MapsforgeTileSource

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ClemensFischer 2026-02-17 17:45:31 +01:00
parent 1d4db8af4c
commit 6900a6a2c9
2 changed files with 55 additions and 14 deletions
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51
MapsforgeTiles/Shared/MapsforgeTileSource.cs
View file

@ -1,4 +1,9 @@
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Threading.Tasks;
#if WPF
using System.Windows.Media;
#elif UWP
@ -11,19 +16,53 @@ using ImageSource=Avalonia.Media.IImage;
namespace MapControl.MapsforgeTiles
{
public partial class MapsforgeTileSource(string theme, int cacheCapacity = 200) : TileSource
public partial class MapsforgeTileSource(string theme, int cacheCapacity = 200, float textScale = 1f) : TileSource
{
private readonly TileRenderer renderer = new(theme, cacheCapacity);
private static ILogger Logger => field ??= ImageLoader.LoggerFactory?.CreateLogger<MapsforgeTileSource>();
private readonly TileRenderer renderer = new(theme, cacheCapacity, textScale);
public static void Initialize(string mapFilePath, float dpiScale)
{
TileRenderer.Initialize(mapFilePath, dpiScale);
List<string> mapFiles;
if (mapFilePath.EndsWith(".map"))
{
mapFiles = [mapFilePath];
}
else
{
mapFiles = [.. Directory.EnumerateFiles(mapFilePath, "*.map")];
}
foreach (var mapFile in mapFiles)
{
Logger?.LogInformation("Loading {mapFile}", mapFile);
}
TileRenderer.Initialize(mapFiles, 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;
ImageSource image = null;
try
{
var sw = Stopwatch.StartNew();
var pixels = renderer.RenderTile(zoomLevel, column, row);
Debug.WriteLine(sw.ElapsedMilliseconds);
if (pixels != null)
{
image = CreateImage(pixels);
}
}
catch (Exception ex)
{
Logger?.LogError(ex, "LoadImageAsync");
}
return Task.FromResult(image);
}

18
MapsforgeTiles/Shared/TileRenderer.cs
View file

@ -7,7 +7,7 @@ using org.mapsforge.map.reader;
using org.mapsforge.map.rendertheme;
using org.mapsforge.map.rendertheme.@internal;
using org.mapsforge.map.rendertheme.rule;
using System.IO;
using System.Collections.Generic;
namespace MapControl.MapsforgeTiles
{
@ -16,23 +16,23 @@ namespace MapControl.MapsforgeTiles
private static DisplayModel displayModel;
private static MapDataStore dataStore;
public static void Initialize(string mapFilePath, float dpiScale)
public static void Initialize(List<string> mapFiles, float dpiScale)
{
DisplayModel.setDeviceScaleFactor(dpiScale);
displayModel = new DisplayModel();
if (mapFilePath.EndsWith(".map"))
if (mapFiles.Count == 1)
{
dataStore = new MapFile(mapFilePath);
dataStore = new MapFile(mapFiles[0]);
}
else
{
var multiMapDataStore = new MultiMapDataStore(MultiMapDataStore.DataPolicy.DEDUPLICATE);
dataStore = multiMapDataStore;
foreach (var file in Directory.EnumerateFiles(mapFilePath, "*.map"))
foreach (var mapFile in mapFiles)
{
multiMapDataStore.addMapDataStore(new MapFile(file), false, false);
multiMapDataStore.addMapDataStore(new MapFile(mapFile), false, false);
}
}
}
@ -40,8 +40,9 @@ namespace MapControl.MapsforgeTiles
private readonly InMemoryTileCache tileCache;
private readonly DatabaseRenderer renderer;
private readonly RenderThemeFuture renderThemeFuture;
private readonly float textScale;
public TileRenderer(string theme, int cacheCapacity = 200)
public TileRenderer(string theme, int cacheCapacity, float renderTextScale)
{
XmlRenderTheme renderTheme;
@ -57,6 +58,7 @@ namespace MapControl.MapsforgeTiles
tileCache = new InMemoryTileCache(cacheCapacity);
renderer = new DatabaseRenderer(dataStore, AwtGraphicFactory.INSTANCE, tileCache, null, true, false, null);
renderThemeFuture = new RenderThemeFuture(AwtGraphicFactory.INSTANCE, renderTheme, displayModel);
textScale = renderTextScale;
}
public int[] RenderTile(int zoomLevel, int column, int row)
@ -68,7 +70,7 @@ namespace MapControl.MapsforgeTiles
int[] imageBuffer = null;
var tile = new org.mapsforge.core.model.Tile(column, row, (byte)zoomLevel, displayModel.getTileSize());
var job = new RendererJob(tile, dataStore, renderThemeFuture, displayModel, 1f, false, false);
var job = new RendererJob(tile, dataStore, renderThemeFuture, displayModel, textScale, false, false);
var bitmap = tileCache.get(job) ?? renderer.executeJob(job);
if (bitmap != null)