void FramebufferBackend::openFrameBuffer()
{
VirtualTerminal::self()->init();
int fd = LogindIntegration::self()->takeDevice(deviceIdentifier().constData());
if (fd < 0) {
qCWarning(KWIN_FB) << "Failed to open frame buffer device through logind, trying without";
}
fd = open(deviceIdentifier().constData(), O_RDWR | O_CLOEXEC);
if (fd < 0) {
qCWarning(KWIN_FB) << "failed to open frame buffer device";
return;
}
m_fd = fd;
queryScreenInfo();
setReady(true);
emit screensQueried();
}
void X11WindowedBackend::init()
{
int screen = 0;
xcb_connection_t *c = nullptr;
Display *xDisplay = XOpenDisplay(deviceIdentifier().constData());
if (xDisplay) {
c = XGetXCBConnection(xDisplay);
XSetEventQueueOwner(xDisplay, XCBOwnsEventQueue);
screen = XDefaultScreen(xDisplay);
}
if (c && !xcb_connection_has_error(c)) {
m_connection = c;
m_screenNumber = screen;
m_display = xDisplay;
for (xcb_screen_iterator_t it = xcb_setup_roots_iterator(xcb_get_setup(m_connection));
it.rem;
--screen, xcb_screen_next(&it)) {
if (screen == m_screenNumber) {
m_screen = it.data;
}
}
XRenderUtils::init(m_connection, m_screen->root);
createWindow();
startEventReading();
connect(this, &X11WindowedBackend::cursorChanged, this,
[this] {
createCursor(softwareCursor(), softwareCursorHotspot());
}
);
setReady(true);
waylandServer()->seat()->setHasPointer(true);
waylandServer()->seat()->setHasKeyboard(true);
emit screensQueried();
} else {
emit initFailed();
}
}