qmlscene: Fix setting of the default surface format

Fixes: QTBUG-76603
Change-Id: I2977117dcaf45345c14599e0b38cb4a242ee449b
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
 

1 files changed, 23 insertions, 21 deletions

diff --git a/tools/qmlscene/main.cpp b/tools/qmlscene/main.cpp
index 5c282d1d1d..a0349a05ec 100644
--- a/tools/qmlscene/main.cpp
+++ b/tools/qmlscene/main.cpp
@@ -477,6 +477,12 @@ int main(int argc, char ** argv)
             options.applicationAttributes.append(Qt::AA_EnableHighDpiScaling);
         } else if (!qstrcmp(arg, "--no-scaling")) {
             options.applicationAttributes.append(Qt::AA_DisableHighDpiScaling);
+        } else if (!qstrcmp(arg, "--transparent")) {
+            options.transparent = true;
+        } else if (!qstrcmp(arg, "--multisample")) {
+            options.multisample = true;
+        } else if (!qstrcmp(arg, "--core-profile")) {
+            options.coreProfile = true;
         } else if (!qstrcmp(arg, "--apptype")) {
             if (++i >= argc)
                 usage();
@@ -485,6 +491,23 @@ int main(int argc, char ** argv)
         }
     }
 
+    if (qEnvironmentVariableIsSet("QMLSCENE_CORE_PROFILE"))
+        options.coreProfile = true;
+
+    // Set default surface format before creating the window
+    QSurfaceFormat surfaceFormat;
+    surfaceFormat.setStencilBufferSize(8);
+    surfaceFormat.setDepthBufferSize(24);
+    if (options.multisample)
+        surfaceFormat.setSamples(16);
+    if (options.transparent)
+        surfaceFormat.setAlphaBufferSize(8);
+    if (options.coreProfile) {
+        surfaceFormat.setVersion(4, 1);
+        surfaceFormat.setProfile(QSurfaceFormat::CoreProfile);
+    }
+    QSurfaceFormat::setDefaultFormat(surfaceFormat);
+
     for (Qt::ApplicationAttribute a : qAsConst(options.applicationAttributes))
         QCoreApplication::setAttribute(a);
     QScopedPointer<QGuiApplication> app;
@@ -499,9 +522,6 @@ int main(int argc, char ** argv)
     QCoreApplication::setOrganizationDomain(QStringLiteral("qt-project.org"));
     QCoreApplication::setApplicationVersion(QLatin1String(QT_VERSION_STR));
 
-    if (qEnvironmentVariableIsSet("QMLSCENE_CORE_PROFILE"))
-        options.coreProfile = true;
-
     const QStringList arguments = QCoreApplication::arguments();
     for (int i = 1, size = arguments.size(); i < size; ++i) {
         if (!arguments.at(i).startsWith(QLatin1Char('-'))) {
@@ -512,8 +532,6 @@ int main(int argc, char ** argv)
                 options.maximized = true;
             else if (lowerArgument == QLatin1String("--fullscreen"))
                 options.fullscreen = true;
-            else if (lowerArgument == QLatin1String("--transparent"))
-                options.transparent = true;
             else if (lowerArgument == QLatin1String("--clip"))
                 options.clip = true;
             else if (lowerArgument == QLatin1String("--no-version-detection"))
@@ -526,10 +544,6 @@ int main(int argc, char ** argv)
                 options.translationFile = QLatin1String(argv[++i]);
             else if (lowerArgument == QLatin1String("--resize-to-root"))
                 options.resizeViewToRootItem = true;
-            else if (lowerArgument == QLatin1String("--multisample"))
-                options.multisample = true;
-            else if (lowerArgument == QLatin1String("--core-profile"))
-                options.coreProfile = true;
             else if (lowerArgument == QLatin1String("--verbose"))
                 options.verbose = true;
             else if (lowerArgument == QLatin1String("-i") && i + 1 < size)
@@ -623,18 +637,6 @@ int main(int argc, char ** argv)
                 return -1;
             }
 
-            // Set default surface format before creating the window
-            QSurfaceFormat surfaceFormat;
-            if (options.multisample)
-                surfaceFormat.setSamples(16);
-            if (options.transparent)
-                surfaceFormat.setAlphaBufferSize(8);
-            if (options.coreProfile) {
-                surfaceFormat.setVersion(4, 1);
-                surfaceFormat.setProfile(QSurfaceFormat::CoreProfile);
-            }
-            QSurfaceFormat::setDefaultFormat(surfaceFormat);
-
             QScopedPointer<QQuickWindow> window(qobject_cast<QQuickWindow *>(topLevel));
             if (window) {
                 engine.setIncubationController(window->incubationController());