From b96929f3fc94ad0a0ae54438cd4cf1541e606967 Mon Sep 17 00:00:00 2001
From: Andrei Kortunov <andrei.kortunov@yandex.ru>
Date: Sat, 10 Apr 2021 09:52:46 +0400
Subject: [PATCH] Avoid division by zero

---
 apps/launcher/graphicspage.cpp       | 5 ++++-
 apps/openmw/mwgui/settingswindow.cpp | 9 +++++++--
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/apps/launcher/graphicspage.cpp b/apps/launcher/graphicspage.cpp
index 01205043ec..c6e74573c4 100644
--- a/apps/launcher/graphicspage.cpp
+++ b/apps/launcher/graphicspage.cpp
@@ -20,6 +20,9 @@
 QString getAspect(int x, int y)
 {
     int gcd = std::gcd (x, y);
+    if (gcd == 0)
+        return QString();
+
     int xaspect = x / gcd;
     int yaspect = y / gcd;
     // special case: 8 : 5 is usually referred to as 16:10
@@ -298,9 +301,9 @@ QStringList Launcher::GraphicsPage::getAvailableResolutions(int screen)
             return result;
         }
 
-        QString aspect = getAspect(mode.w, mode.h);
         QString resolution = QString::number(mode.w) + QString(" x ") + QString::number(mode.h);
 
+        QString aspect = getAspect(mode.w, mode.h);
         if (aspect == QLatin1String("16:9") || aspect == QLatin1String("16:10")) {
             resolution.append(tr("\t(Wide ") + aspect + ")");
 
diff --git a/apps/openmw/mwgui/settingswindow.cpp b/apps/openmw/mwgui/settingswindow.cpp
index 538b3db5ed..6342433c47 100644
--- a/apps/openmw/mwgui/settingswindow.cpp
+++ b/apps/openmw/mwgui/settingswindow.cpp
@@ -61,6 +61,9 @@ namespace
     std::string getAspect (int x, int y)
     {
         int gcd = std::gcd (x, y);
+        if (gcd == 0)
+            return std::string();
+
         int xaspect = x / gcd;
         int yaspect = y / gcd;
         // special case: 8 : 5 is usually referred to as 16:10
@@ -249,8 +252,10 @@ namespace MWGui
         std::sort(resolutions.begin(), resolutions.end(), sortResolutions);
         for (std::pair<int, int>& resolution : resolutions)
         {
-            std::string str = MyGUI::utility::toString(resolution.first) + " x " + MyGUI::utility::toString(resolution.second)
-                    + " (" + getAspect(resolution.first, resolution.second) + ")";
+            std::string str = MyGUI::utility::toString(resolution.first) + " x " + MyGUI::utility::toString(resolution.second);
+            std::string aspect = getAspect(resolution.first, resolution.second);
+            if (!aspect.empty())
+                 str = str + " (" + aspect + ")";
 
             if (mResolutionList->findItemIndexWith(str) == MyGUI::ITEM_NONE)
                 mResolutionList->addItem(str);