Fix incorrect surface type in offscreen plugin

In case we use glx backend set correct surface.

Task-number: QTBUG-63346
Change-Id: I5827bf5b8e4ed60b933c25ce234fdd4a3dd20c88
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/plugins/platforms/offscreen/qoffscreenintegration_x11.cpp b/src/plugins/platforms/offscreen/qoffscreenintegration_x11.cpp
index 38d06a4131..2e9f1eec2c 100644
--- a/src/plugins/platforms/offscreen/qoffscreenintegration_x11.cpp
+++ b/src/plugins/platforms/offscreen/qoffscreenintegration_x11.cpp
@@ -87,6 +87,7 @@ bool QOffscreenX11Integration::hasCapability(QPlatformIntegration::Capability ca
     switch (cap) {
     case OpenGL: return true;
     case ThreadedOpenGL: return true;
+    case RasterGLSurface: return true;
     default: return QOffscreenIntegration::hasCapability(cap);
     }
 }
@@ -196,6 +197,12 @@ QOffscreenX11GLXContext::QOffscreenX11GLXContext(QOffscreenX11Info *x11, QOpenGL
     d->x11 = x11;
     d->format = context->format();
 
+    if (d->format.renderableType() == QSurfaceFormat::DefaultRenderableType)
+        d->format.setRenderableType(QSurfaceFormat::OpenGL);
+
+    if (d->format.renderableType() != QSurfaceFormat::OpenGL)
+        return;
+
     d->shareContext = 0;
     if (context->shareHandle())
         d->shareContext = static_cast<QOffscreenX11GLXContext *>(context->shareHandle())->d->context;