From 3c3bb0c6ba5acdd0023f428b82523089f37719d6 Mon Sep 17 00:00:00 2001
From: Aous Naman <aous@unsw.edu.au>
Date: Tue, 6 Feb 2024 08:18:27 +1100
Subject: [PATCH] This fixes the bug when a resolution has only two rows.

---
 src/core/codestream/ojph_resolution.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/core/codestream/ojph_resolution.cpp b/src/core/codestream/ojph_resolution.cpp
index ff0b081..82371bd 100644
--- a/src/core/codestream/ojph_resolution.cpp
+++ b/src/core/codestream/ojph_resolution.cpp
@@ -553,8 +553,10 @@ namespace ojph {
                 bands[1].push_line();
                 child_res->push_line();
               }
-              irrev_vert_wvlt_K(lines + 2, lines + 5,
-                                false, width);
+              if (cur_line >= 2)
+                irrev_vert_wvlt_K(lines + 2, lines + 5, false, width);
+              else
+                irrev_vert_wvlt_K(lines, lines + 5, false, width);
               irrev_horz_wvlt_fwd_tx(lines + 5, bands[2].get_line(),
                 bands[3].get_line(), width, horz_even);
               bands[2].push_line();