From d838ff352dd21c8ebe753d6fa46af607a4f66ced Mon Sep 17 00:00:00 2001
From: Lawrence37 <45837045+Lawrence37@users.noreply.github.com>
Date: Tue, 30 Aug 2022 05:49:46 -0700
Subject: [PATCH] Remove last row from D5100 raws (#6571)

Avoid decoding the last row which contains corrupt data and causes the
image to become black.

Closes #5654.
---
 rtengine/dcraw.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rtengine/dcraw.cc b/rtengine/dcraw.cc
index e4dbcbf94..c91a73f62 100644
--- a/rtengine/dcraw.cc
+++ b/rtengine/dcraw.cc
@@ -9763,6 +9763,8 @@ void CLASS identify()
      if(!dng_version) {top_margin = 18; height -= top_margin; }
   if (height == 3014 && width == 4096)	/* Ricoh GX200 */
 			width  = 4014;
+  if (height == 3280 && width == 4992 && !strncmp(model, "D5100", 5))
+    { --height; } // Last row contains corrupt data. See issue #5654.
   if (dng_version) {
     if (filters == UINT_MAX) filters = 0;
     if (filters) is_raw *= tiff_samples;