From 4176ab21061f425b4ee274f7f9c6634dacf5ca7c Mon Sep 17 00:00:00 2001
From: Kleis Auke Wolthuizen <github@kleisauke.nl>
Date: Sat, 24 Sep 2022 14:36:02 +0200
Subject: [PATCH] tiff2vips: avoid `g_assert_not_reached` in the default clause
 (#3064)

Since that could terminate the application in debug builds. Also,
add the missing case clause for `PHOTOMETRIC_MINISWHITE`.

Resolves: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=51013.
---
 libvips/foreign/tiff2vips.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libvips/foreign/tiff2vips.c b/libvips/foreign/tiff2vips.c
index 744a7220..0f0d6b58 100644
--- a/libvips/foreign/tiff2vips.c
+++ b/libvips/foreign/tiff2vips.c
@@ -1937,13 +1937,15 @@ rtiff_decompress_jpeg_run( Rtiff *rtiff, j_decompress_ptr cinfo,
                 bytes_per_pixel = 3;
                 break;
 
+        case PHOTOMETRIC_MINISWHITE:
         case PHOTOMETRIC_MINISBLACK:
                 cinfo->jpeg_color_space = JCS_GRAYSCALE;
                 bytes_per_pixel = 1;
                 break;
 
         default:
-                g_assert_not_reached();
+                cinfo->jpeg_color_space = JCS_UNKNOWN;
+                bytes_per_pixel = 1;
                 break;
         }