Add BuildFontsAsync for parallel font/theme init

2026-05-08 20:34:05 +02:00
parent daa800c8b1
commit ccc5a4e17a
2 changed files with 15 additions and 3 deletions
@@ -100,6 +100,19 @@ public class FontManager
        JpRange = BuildRange(GlyphRangesJapanese.GlyphRanges);
    }

+    /// <summary>
+    /// Async wrapper around <see cref="BuildFonts"/> for the Phase-1 LoadAsync
+    /// path. The font-atlas build is CPU-bound, so we offload via Task.Run and
+    /// honour the cancellation token at the scheduling boundary; this lets the
+    /// font build run in parallel with the theme init without blocking the
+    /// loader. Settings-driven manual rebuilds keep using the sync entry point.
+    /// </summary>
+    public async Task BuildFontsAsync(CancellationToken cancellationToken)
+    {
+        cancellationToken.ThrowIfCancellationRequested();
+        await Task.Run(BuildFonts, cancellationToken).ConfigureAwait(false);
+    }
+
    public void BuildFonts()
    {
        SetUpRanges();