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Update TileImageLoader.cs

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ClemensFischer 2023-08-16 22:20:04 +02:00
parent a2c472162b
commit bd9e7866f5
1 changed files with 10 additions and 4 deletions
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14
MapControl/Shared/TileImageLoader.cs
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@ -58,7 +58,7 @@ namespace MapControl
private TileQueue pendingTiles; private TileQueue pendingTiles;
/// <summary> /// <summary>
/// Loads all unloaded tiles from the tiles collection. /// Loads all pending tiles from the tiles collection.
/// If tileSource.UriFormat starts with "http" and cacheName is a non-empty string, /// If tileSource.UriFormat starts with "http" and cacheName is a non-empty string,
/// tile images will be cached in the TileImageLoader's Cache - if that is not null. /// tile images will be cached in the TileImageLoader's Cache - if that is not null.
/// </summary> /// </summary>
@ -80,10 +80,11 @@ namespace MapControl
cacheName = null; // no tile caching cacheName = null; // no tile caching
} }
var tileQueue = pendingTiles; // pendingTiles may change while LoadTilesFromQueue() is running
progress?.Report(0d); progress?.Report(0d);
var tileQueue = pendingTiles; // pendingTiles may change while tasks are running
var tasks = new Task[taskCount];
async Task LoadTilesFromQueue() async Task LoadTilesFromQueue()
{ {
while (tileQueue.TryDequeue(out var tile)) while (tileQueue.TryDequeue(out var tile))
@ -101,7 +102,12 @@ namespace MapControl
} }
} }
return Task.WhenAll(Enumerable.Range(0, taskCount).Select(_ => Task.Run(LoadTilesFromQueue))); for (int i = 0; i < taskCount; i++)
{
tasks[i] = Task.Run(LoadTilesFromQueue);
}
return Task.WhenAll(tasks);
} }
} }