1 files changed, 33 insertions, 0 deletions
diff --git a/src/plugins/platforms/eglfs/qeglfshooks_stub.cpp b/src/plugins/platforms/eglfs/qeglfshooks_stub.cpp
index d0e3e4546d..fbc02d1a01 100644
--- a/src/plugins/platforms/eglfs/qeglfshooks_stub.cpp
+++ b/src/plugins/platforms/eglfs/qeglfshooks_stub.cpp
@@ -61,6 +61,39 @@ QSize QEglFSHooks::screenSize() const
     return QSize();
 }
 
+int QEglFSHooks::screenDepth() const
+{
+    static int depth = qgetenv("QT_QPA_EGLFS_DEPTH").toInt();
+    return depth == 16 ? 16 : 32;
+}
+
+QImage::Format QEglFSHooks::screenFormat() const
+{
+    return screenDepth() == 16 ? QImage::Format_RGB16 : QImage::Format_RGB32;
+}
+
+QSurfaceFormat QEglFSHooks::defaultSurfaceFormat() const
+{
+    QSurfaceFormat format;
+    if (screenDepth() == 16) {
+        format.setDepthBufferSize(16);
+        format.setRedBufferSize(5);
+        format.setGreenBufferSize(6);
+        format.setBlueBufferSize(5);
+    } else {
+        format.setDepthBufferSize(24);
+        format.setStencilBufferSize(8);
+        format.setRedBufferSize(8);
+        format.setGreenBufferSize(8);
+        format.setBlueBufferSize(8);
+    }
+
+    static int samples = qgetenv("QT_QPA_EGLFS_MULTISAMPLE").toInt();
+    format.setSamples(samples);
+
+    return format;
+}
+
 EGLNativeWindowType QEglFSHooks::createNativeWindow(const QSize &size)
 {
     Q_UNUSED(size);