From 11fa3660854a601475a5bb82d83c5152c87d5248 Mon Sep 17 00:00:00 2001
From: Andrew <andrew@digerati.co.nz>
Date: Wed, 29 Jan 2025 20:48:46 +1300
Subject: [PATCH] Tweak eval cmp key for more consistent results

---
 src/evaluate.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/evaluate.rs b/src/evaluate.rs
index b3801fac..dd60aee6 100644
--- a/src/evaluate.rs
+++ b/src/evaluate.rs
@@ -23,7 +23,7 @@ pub(crate) struct Candidate {
     pub idat_data: Vec<u8>,
     pub filtered: Vec<u8>,
     pub filter: RowFilter,
-    // first wins tie-breaker
+    // For determining tie-breaker
     nth: usize,
 }
 
@@ -32,9 +32,9 @@ impl Candidate {
         (
             self.idat_data.len() + self.image.key_chunks_size(),
             self.image.data.len(),
-            self.image.ihdr.bit_depth,
             self.filter,
-            self.nth,
+            // Prefer the later image added (e.g. baseline, which is always added last)
+            usize::MAX - self.nth,
         )
     }
 }