From 7e1d96ef9ca1ff2449d1d3c4b1eefb42234da7dd Mon Sep 17 00:00:00 2001
From: Sami Nurmenniemi <sami.nurmenniemi@qt.io>
Date: Thu, 20 Sep 2018 16:44:03 +0300
Subject: Use Material style only on devices with gpu

Task-number: QTBUG-70493
Change-Id: Ia768ad91ea0f5672b9c25a7ae4102d8d19de9570
Reviewed-by: Kari Hormi <kari.hormi@qt.io>
---
 basicsuite/shared/main.cpp | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/basicsuite/shared/main.cpp b/basicsuite/shared/main.cpp
index e682c67..c6aefc3 100644
--- a/basicsuite/shared/main.cpp
+++ b/basicsuite/shared/main.cpp
@@ -66,6 +66,7 @@
 #include <QSettings>
 #include <QQuickStyle>
 #include <QIcon>
+#include <QQuickWindow>
 
 #if defined(USE_QTWEBENGINE)
 #include <qtwebengineglobal.h>
@@ -73,6 +74,13 @@
 
 #include "engine.h"
 
+static bool checkGlAvailability()
+{
+    QQuickWindow window;
+    return ((window.sceneGraphBackend() != "software") &&
+            (window.sceneGraphBackend() != "softwarecontext"));
+}
+
 int main(int argc, char **argv)
 {
     //qputenv("QT_IM_MODULE", QByteArray("qtvkb"));
@@ -140,10 +148,15 @@ int main(int argc, char **argv)
         QGuiApplication::setFont(font);
     }
 
+    // Material style can be set only for devices supporting GL
     QSettings styleSettings;
     QString style = styleSettings.value("style").toString();
-    if (style.isEmpty() || style == "Default")
-        styleSettings.setValue("style", "Material");
+    if (checkGlAvailability()) {
+        if (style.isEmpty() || style == "Default")
+            styleSettings.setValue("style", "Material");
+    } else {
+        qDebug()<<"No GL available, skipping Material style";
+    }
     QQuickStyle::setStyle(styleSettings.value("style").toString());
 
     DummyEngine engine;
-- 
cgit v1.2.3