From a9620f98f412043f6ba4e3fbbf9964f288d36beb Mon Sep 17 00:00:00 2001
From: nmzik <Nmzik@mail.ru>
Date: Fri, 2 Oct 2026 12:52:58 +0400
Subject: [PATCH] Query dirty region bits without constructing temporary
 snapshots

---
 src/graphics/host_gpu/regionManager.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/graphics/host_gpu/regionManager.h b/src/graphics/host_gpu/regionManager.h
index 500fc6739..4f43fa351 100644
--- a/src/graphics/host_gpu/regionManager.h
+++ b/src/graphics/host_gpu/regionManager.h
@@ -88,8 +88,7 @@ public:
 	template <DirtySource source>
 	[[nodiscard]] bool IsModified(uint64_t offset, uint64_t size) const {
 		const auto [start, end] = GetPageRange(m_cpu_addr + offset, size);
-		const auto& bits        = GetBits<source>();
-		return RegionBits(bits, start, end).Any();
+		return GetBits<source>().FirstRangeFrom(start).first < end;
 	}
 
 	template <DirtySource source, bool enable>