static int
init_drm(struct display *d)
{
EGLint major, minor;
int fd;
drm_magic_t magic;
fd = open(d->device_name, O_RDWR);
if (fd < 0) {
fprintf(stderr, "drm open failed: %m\n");
return -1;
}
if (drmGetMagic(fd, &magic)) {
fprintf(stderr, "DRI2: failed to get drm magic");
return -1;
}
/* Wait for authenticated event */
wl_drm_authenticate(d->drm, magic);
wl_display_iterate(d->display, WL_DISPLAY_WRITABLE);
while (!d->authenticated)
wl_display_iterate(d->display, WL_DISPLAY_READABLE);
d->dpy = eglGetDRMDisplayMESA(fd);
if (!eglInitialize(d->dpy, &major, &minor)) {
fprintf(stderr, "failed to initialize display\n");
return -1;
}
if (!eglBindAPI(EGL_OPENGL_API)) {
fprintf(stderr, "failed to bind api EGL_OPENGL_API\n");
return -1;
}
d->ctx = eglCreateContext(d->dpy, NULL, EGL_NO_CONTEXT, NULL);
if (d->ctx == NULL) {
fprintf(stderr, "failed to create context\n");
return -1;
}
if (!eglMakeCurrent(d->dpy, NULL, NULL, d->ctx)) {
fprintf(stderr, "faile to make context current\n");
return -1;
}
#ifdef HAVE_CAIRO_EGL
d->device = cairo_egl_device_create(d->dpy, d->ctx);
if (d->device == NULL) {
fprintf(stderr, "failed to get cairo drm device\n");
return -1;
}
#endif
return 0;
}
void QXcbConnection::initializeDri2()
{
xcb_dri2_connect_cookie_t connect_cookie = xcb_dri2_connect_unchecked (m_connection,
m_screens[0]->root(),
XCB_DRI2_DRIVER_TYPE_DRI);
xcb_dri2_connect_reply_t *connect = xcb_dri2_connect_reply (m_connection,
connect_cookie, NULL);
if (! connect || connect->driver_name_length + connect->device_name_length == 0) {
qDebug() << "Failed to connect to dri2";
return;
}
m_dri2_device_name = QByteArray(xcb_dri2_connect_device_name (connect),
xcb_dri2_connect_device_name_length (connect));
delete connect;
int fd = open(m_dri2_device_name.constData(), O_RDWR);
if (fd < 0) {
qDebug() << "InitializeDri2: Could'nt open device << dri2DeviceName";
m_dri2_device_name = QByteArray();
return;
}
drm_magic_t magic;
if (drmGetMagic(fd, &magic)) {
qDebug() << "Failed to get drmMagic";
return;
}
xcb_dri2_authenticate_cookie_t authenticate_cookie = xcb_dri2_authenticate_unchecked(m_connection,
m_screens[0]->root(), magic);
xcb_dri2_authenticate_reply_t *authenticate = xcb_dri2_authenticate_reply(m_connection,
authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated) {
fprintf(stderr, "DRI2: failed to authenticate\n");
free(authenticate);
return;
}
delete authenticate;
EGLDisplay display = eglGetDRMDisplayMESA(fd);
if (!display) {
fprintf(stderr, "failed to create display\n");
return;
}
m_egl_display = display;
EGLint major,minor;
if (!eglInitialize(display, &major, &minor)) {
fprintf(stderr, "failed to initialize display\n");
return;
}
}