void GraphicsContext3DPrivate::blitMultisampleFramebufferAndRestoreContext() const
{
if (!m_context->m_attrs.antialias)
return;
#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
const QOpenGLContext* currentContext = QOpenGLContext::currentContext();
QSurface* currentSurface = 0;
if (currentContext != m_platformContext) {
currentSurface = currentContext->surface();
m_platformContext->makeCurrent(m_surface);
}
blitMultisampleFramebuffer();
if (currentSurface)
const_cast<QOpenGLContext*>(currentContext)->makeCurrent(currentSurface);
#else
const QGLContext* currentContext = QGLContext::currentContext();
const QGLContext* widgetContext = m_surface->context();
if (currentContext != widgetContext)
m_surface->makeCurrent();
blitMultisampleFramebuffer();
if (currentContext) {
if (currentContext != widgetContext)
const_cast<QGLContext*>(currentContext)->makeCurrent();
} else
m_surface->doneCurrent();
#endif
}
void GraphicsContext3DPrivate::blitMultisampleFramebufferAndRestoreContext()
{
const QOpenGLContext* currentContext = QOpenGLContext::currentContext();
QSurface* currentSurface = 0;
if (currentContext && currentContext != m_platformContext) {
currentSurface = currentContext->surface();
m_platformContext->makeCurrent(m_surface);
}
if (m_context->m_attrs.antialias)
blitMultisampleFramebuffer();
// While the context is still bound, make sure all the Framebuffer content is in finished state.
// This is necessary as we are doing our own double buffering instead of using a drawable that provides swapBuffers.
glFinish();
if (currentContext && currentContext != m_platformContext)
const_cast<QOpenGLContext*>(currentContext)->makeCurrent(currentSurface);
}
