From 5a889d28c8518190d4c0fd4688e4639e9a46714d Mon Sep 17 00:00:00 2001
From: topjohnwu <topjohnwu@gmail.com>
Date: Mon, 24 Jan 2022 23:07:37 -0800
Subject: [PATCH] Pick a more reasonable zopfli config

Close #4980
---
 native/jni/magiskboot/compress.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/native/jni/magiskboot/compress.cpp b/native/jni/magiskboot/compress.cpp
index 7159fa717..462219b86 100644
--- a/native/jni/magiskboot/compress.cpp
+++ b/native/jni/magiskboot/compress.cpp
@@ -111,8 +111,9 @@ public:
         zo{}, out(nullptr), outsize(0), crc(crc32_z(0L, Z_NULL, 0)), in_total(0), bp(0) {
         ZopfliInitOptions(&zo);
 
-        // 5 iterations is reasonable for large files
-        zo.numiterations = 5;
+        // This config is already better than gzip -9
+        zo.numiterations = 1;
+        zo.blocksplitting = 0;
 
         ZOPFLI_APPEND_DATA(31, &out, &outsize);  /* ID1 */
         ZOPFLI_APPEND_DATA(139, &out, &outsize); /* ID2 */