From 55e2569a077b6c689baf4ff88ef64fbd490768a2 Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Tue, 21 Dec 2021 14:48:13 +1100
Subject: [PATCH] Fixed I;16 conversion on big endian

---
 Tests/test_file_png.py   | 2 --
 src/libImaging/Convert.c | 7 +++++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/Tests/test_file_png.py b/Tests/test_file_png.py
index 9a5577bbac0..0869cc58bc5 100644
--- a/Tests/test_file_png.py
+++ b/Tests/test_file_png.py
@@ -13,7 +13,6 @@
     assert_image_equal,
     assert_image_equal_tofile,
     hopper,
-    is_big_endian,
     is_win32,
     mark_if_feature_version,
     skip_unless_feature,
@@ -77,7 +76,6 @@ def get_chunks(self, filename):
                     png.crc(cid, s)
         return chunks
 
-    @pytest.mark.xfail(is_big_endian(), reason="Fails on big-endian")
     def test_sanity(self, tmp_path):
 
         # internal version number
diff --git a/src/libImaging/Convert.c b/src/libImaging/Convert.c
index 9012cfcd74b..f4e970f51ba 100644
--- a/src/libImaging/Convert.c
+++ b/src/libImaging/Convert.c
@@ -963,10 +963,17 @@ static struct {
 
     {"HSV", "RGB", hsv2rgb},
 
+#ifdef WORDS_BIGENDIAN
+    {"I", "I;16", I_I16B},
+    {"I;16", "I", I16B_I},
+    {"L", "I;16", L_I16B},
+    {"I;16", "L", I16B_L},
+#else
     {"I", "I;16", I_I16L},
     {"I;16", "I", I16L_I},
     {"L", "I;16", L_I16L},
     {"I;16", "L", I16L_L},
+#endif
 
     {"I", "I;16L", I_I16L},
     {"I;16L", "I", I16L_I},