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Reject unusable cursor density and oversized raster requests

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This commit is contained in:
fufesou
2026-09-13 23:17:40 +08:00
parent fbfa37c8fd
commit c02f17212a
4 changed files with 256 additions and 14 deletions
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6
flutter/lib/native/custom_cursor.dart
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@@ -34,7 +34,11 @@ MouseCursor buildCursorOfCache(
final effectiveScale = !legacyMinimum && isWindows
? math.max(scale, kMinCursorSize * dpr / math.max(cache.width, cache.height))
: scale;
final key = '${cache.updateGetKey(effectiveScale, resizeImage: false, useLegacyMinimum: legacyMinimum)}_$dpr';
final cacheKey = cache.updateGetKey(effectiveScale, resizeImage: false,
useLegacyMinimum: legacyMinimum,
rasterScale: isWindows ? 1 : (isLinux ? dpr.ceilToDouble() : dpr));
if (cacheKey == null) return MouseCursor.defer;
final key = '${cacheKey}_$dpr';
if (!cursor.cachedKeys.contains(key)) {
debugPrint(
"Register custom cursor with key $key (${cache.hotx},${cache.hoty})");