#include "GLHelpers.h"  QSurfaceFormat getDefaultOpenGlSurfaceFormat() {   QSurfaceFormat format;   // Qt Quick may need a depth and stencil buffer. Always make sure these are available.   format.setDepthBufferSize(DEFAULT_GL_DEPTH_BUFFER_BITS);   format.setStencilBufferSize(DEFAULT_GL_STENCIL_BUFFER_BITS);   format.setVersion(4, 1);#ifdef DEBUG   format.setOption(QSurfaceFormat::DebugContext);#endif   // FIXME move to core as soon as possible   format.setProfile(QSurfaceFormat::OpenGLContextProfile::CompatibilityProfile);   return format;}