From 65a107a94106b503de9e29c5aa4dd34318773402 Mon Sep 17 00:00:00 2001
From: NovaRain <novarain@gmail.com>
Date: Tue, 5 May 2026 21:12:27 +0800
Subject: [PATCH] Increased decompression buffer size to 4KB

(ref. fallout2-ce/fallout2-ce#439)
---
 sfall/Modules/FileSystem.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sfall/Modules/FileSystem.cpp b/sfall/Modules/FileSystem.cpp
index 1bf459d7..ba61ca16 100644
--- a/sfall/Modules/FileSystem.cpp
+++ b/sfall/Modules/FileSystem.cpp
@@ -771,6 +771,10 @@ void FileSystem::init() {
 	// Fix file seeking in uncompressed database files
 	HookCall(0x4E5B52, dfile_fseek_hook);
 
+	// Increase decompression buffer size for reading compressed database files
+	const DWORD dfileBufSizeAddr[] = {0x4E5EE0, 0x4E60D9, 0x4E60E0};
+	SafeWriteBatch<DWORD>(4096, dfileBufSizeAddr); // was 1024
+
 	// Warning message when there are more than 16 open files (max 20)
 	HookCall(0x4EE0DE, sopen_hook_warning);
 	// Error message "Failed to open file"