QRhi software-rendering example

[skinkie]

I am trying to find a working example where QSGRendererInterface::Software independent of any OpenGL requirement would work for offscreen rendering.

m_renderControl = new QQuickRenderControl();
m_quickWindow = new QQuickWindow(m_renderControl);
m_quickWindow->setGraphicsApi(QSGRendererInterface::Software);

QImage qimage = QImage(1920, 1080, QImage::Format_ARGB32);
QQuickRenderTarget renderTarget = QQuickRenderTarget::fromPaintDevice(&qimage);
m_quickWindow->setRenderTarget(renderTarget);

m_renderControl->beginFrame();
m_renderControl->render();
m_renderControl->endFrame();

I end up with:

QQuickRenderControl: No QRhi in beginFrame()
QQuickRenderControl: No QRhi in endFrame()