static QSurface *createSurface(int surfaceClass)
{
if (surfaceClass == int(QSurface::Window)) {
QWindow *window = new QWindow;
window->setSurfaceType(QWindow::OpenGLSurface);
window->setGeometry(0, 0, 10, 10);
window->create();
return window;
} else if (surfaceClass == int(QSurface::Offscreen)) {
// Create a window and get the format from that. For example, if an EGL
// implementation provides 565 and 888 configs for PBUFFER_BIT but only
// 888 for WINDOW_BIT, we may end up with a pbuffer surface that is
// incompatible with the context since it could choose the 565 while the
// window and the context uses a config with 888.
static QSurfaceFormat format;
if (format.redBufferSize() == -1) {
QWindow *window = new QWindow;
window->setSurfaceType(QWindow::OpenGLSurface);
window->setGeometry(0, 0, 10, 10);
window->create();
format = window->format();
delete window;
}
QOffscreenSurface *offscreenSurface = new QOffscreenSurface;
offscreenSurface->setFormat(format);
offscreenSurface->create();
return offscreenSurface;
}
return 0;
}
