Set up an OpenGL Context to be shared between threads beforehand

Allows for plugins that depend on Qt WebEngine module.
qgis · Feb 10, 2020 · 249c75b · 249c75b
1 parent 9cdf76a
commit 249c75b
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/src/app/main.cpp b/src/app/main.cpp
@@ -884,6 +884,15 @@ int main( int argc, char *argv[] )
   QCoreApplication::setAttribute( Qt::AA_DisableWindowContextHelpButton, true );
 #endif
 
+  // Set up an OpenGL Context to be shared between threads beforehand
+  // for plugins that depend on Qt WebEngine module.
+  // As suggested by Qt documentation at:
+  //   - https://doc.qt.io/qt-5/qtwebengine.html
+  //   - https://code.qt.io/cgit/qt/qtwebengine.git/plain/src/webenginewidgets/api/qtwebenginewidgetsglobal.cpp
+#if defined(QT_OS_WIN) && !defined(QT_NO_OPENGL) && (QT_VERSION >= QT_VERSION_CHECK(5, 4, 0) )
+  QCoreApplication::setAttribute( Qt::AA_ShareOpenGLContexts, true );
+#endif
+
   // Set up the QgsSettings Global Settings:
   // - use the path specified with --globalsettingsfile path,
   // - use the environment if not found