From 63985162972dc9e760a435a9f2a919e234bb65ba Mon Sep 17 00:00:00 2001
From: cyberman54 <cyberman@obh.snafu.de>
Date: Sun, 14 Aug 2022 15:49:32 +0200
Subject: [PATCH] sanitize display code

---
 src/display.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/display.cpp b/src/display.cpp
index 06f87ea7..0b902355 100644
--- a/src/display.cpp
+++ b/src/display.cpp
@@ -151,6 +151,7 @@ void dp_refresh(bool nextPage) {
 
 #ifndef HAS_BUTTON
   static uint32_t framecounter = 0;
+  const uint32_t flip_threshold = DISPLAYCYCLE * 1000 / DISPLAYREFRESH_MS;
 #endif
 
   // if display is switched off we don't refresh it to relax cpu
@@ -165,7 +166,7 @@ void dp_refresh(bool nextPage) {
 
 #ifndef HAS_BUTTON
   // auto flip page if we are in unattended mode
-  if ((++framecounter) > (DISPLAYCYCLE * 1000 / DISPLAYREFRESH_MS)) {
+  if (++framecounter > flip_threshold) {
     framecounter = 0;
     nextPage = true;
   }