From 8a58319106fed41d70c6cb5d759fbbdecabf8919 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Sun, 31 May 2020 21:18:21 +0200
Subject: [PATCH] TWebPSetupEncode(): fix logic problem (and instead of or) in
 test that checks input is 8bit unsigned data

---
 libtiff/tif_webp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libtiff/tif_webp.c b/libtiff/tif_webp.c
index 22665f2d..c7885539 100644
--- a/libtiff/tif_webp.c
+++ b/libtiff/tif_webp.c
@@ -333,7 +333,7 @@ TWebPSetupEncode(TIFF* tif)
   }
   
   /* check bits per sample and data type */
-  if ((nBitsPerSample != 8) && (sampleFormat != 1)) {
+  if ((nBitsPerSample != 8) || (sampleFormat != SAMPLEFORMAT_UINT)) {
     TIFFErrorExt(tif->tif_clientdata, module,
                 "WEBP driver requires 8 bit unsigned data");
     return 0;