From 8431164bc6b522d8c26bd89498f3da1ee7e376be Mon Sep 17 00:00:00 2001
From: yuyoyuppe <a.yuyoyuppe@gmail.com>
Date: Thu, 25 Aug 2022 12:58:46 +0200
Subject: [PATCH] improve sum of all channel diffs method score calc

---
 src/modules/MeasureTool/MeasureToolCore/BGRATextureView.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/modules/MeasureTool/MeasureToolCore/BGRATextureView.h b/src/modules/MeasureTool/MeasureToolCore/BGRATextureView.h
index 2ada059c15..05fbc53bfe 100644
--- a/src/modules/MeasureTool/MeasureToolCore/BGRATextureView.h
+++ b/src/modules/MeasureTool/MeasureToolCore/BGRATextureView.h
@@ -8,6 +8,7 @@
 #include <emmintrin.h>
 #endif
 #include <cassert>
+#include <limits>
 
 //#define DEBUG_TEXTURE
 
@@ -115,7 +116,8 @@ struct BGRATextureView
         else
         {
             // Method 2: Test whether sum of all channel differences is smaller than tolerance
-            return _mm_cvtsi128_si32(_mm_sad_epu8(distances, _mm_setzero_si128())) <= tolerance;
+            const int32_t score = _mm_cvtsi128_si32(_mm_sad_epu8(distances, _mm_setzero_si128()));
+            return std::clamp<int32_t>(score, 0, std::numeric_limits<uint8_t>::max()) <= tolerance;
         }
     }