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;
}
}
static void
pipe_loader_drm_x_auth(int fd)
{
#ifdef HAVE_PIPE_LOADER_XCB
/* Try authenticate with the X server to give us access to devices that X
* is running on. */
xcb_connection_t *xcb_conn;
const xcb_setup_t *xcb_setup;
xcb_screen_iterator_t s;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_dri2_connect_reply_t *connect;
drm_magic_t magic;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
xcb_dri2_authenticate_reply_t *authenticate;
int screen;
xcb_conn = xcb_connect(NULL, &screen);
if(!xcb_conn)
return;
xcb_setup = xcb_get_setup(xcb_conn);
if (!xcb_setup)
goto disconnect;
s = xcb_setup_roots_iterator(xcb_setup);
connect_cookie = xcb_dri2_connect_unchecked(xcb_conn,
get_xcb_screen(s, screen)->root,
XCB_DRI2_DRIVER_TYPE_DRI);
connect = xcb_dri2_connect_reply(xcb_conn, connect_cookie, NULL);
if (!connect || connect->driver_name_length
+ connect->device_name_length == 0) {
goto disconnect;
}
if (drmGetMagic(fd, &magic))
goto disconnect;
authenticate_cookie = xcb_dri2_authenticate_unchecked(xcb_conn,
s.data->root,
magic);
authenticate = xcb_dri2_authenticate_reply(xcb_conn,
authenticate_cookie,
NULL);
FREE(authenticate);
disconnect:
xcb_disconnect(xcb_conn);
#endif
}
static EGLBoolean
dri2_connect(struct dri2_egl_display *dri2_dpy)
{
xcb_xfixes_query_version_reply_t *xfixes_query;
xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
xcb_dri2_query_version_reply_t *dri2_query;
xcb_dri2_query_version_cookie_t dri2_query_cookie;
xcb_dri2_connect_reply_t *connect;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_generic_error_t *error;
xcb_screen_iterator_t s;
char *driver_name, *device_name;
const xcb_query_extension_reply_t *extension;
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id);
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id);
extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_xfixes_id);
if (!(extension && extension->present))
return EGL_FALSE;
extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_dri2_id);
if (!(extension && extension->present))
return EGL_FALSE;
xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn,
XCB_XFIXES_MAJOR_VERSION,
XCB_XFIXES_MINOR_VERSION);
dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn,
XCB_DRI2_MAJOR_VERSION,
XCB_DRI2_MINOR_VERSION);
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn,
s.data->root,
XCB_DRI2_DRIVER_TYPE_DRI);
xfixes_query =
xcb_xfixes_query_version_reply (dri2_dpy->conn,
xfixes_query_cookie, &error);
if (xfixes_query == NULL ||
error != NULL || xfixes_query->major_version < 2) {
_eglLog(_EGL_WARNING, "DRI2: failed to query xfixes version");
free(error);
return EGL_FALSE;
}
free(xfixes_query);
dri2_query =
xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error);
if (dri2_query == NULL || error != NULL) {
_eglLog(_EGL_WARNING, "DRI2: failed to query version");
free(error);
return EGL_FALSE;
}
dri2_dpy->dri2_major = dri2_query->major_version;
dri2_dpy->dri2_minor = dri2_query->minor_version;
free(dri2_query);
connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL);
if (connect == NULL ||
connect->driver_name_length + connect->device_name_length == 0) {
_eglLog(_EGL_WARNING, "DRI2: failed to authenticate");
return EGL_FALSE;
}
driver_name = xcb_dri2_connect_driver_name (connect);
dri2_dpy->driver_name =
dri2_strndup(driver_name,
xcb_dri2_connect_driver_name_length (connect));
device_name = xcb_dri2_connect_device_name (connect);
dri2_dpy->device_name =
dri2_strndup(device_name,
xcb_dri2_connect_device_name_length (connect));
if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) {
free(dri2_dpy->device_name);
free(dri2_dpy->driver_name);
free(connect);
return EGL_FALSE;
}
free(connect);
return EGL_TRUE;
}
static EGLBoolean
dri2_x11_connect(struct dri2_egl_display *dri2_dpy)
{
xcb_xfixes_query_version_reply_t *xfixes_query;
xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
xcb_dri2_query_version_reply_t *dri2_query;
xcb_dri2_query_version_cookie_t dri2_query_cookie;
xcb_dri2_connect_reply_t *connect;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_generic_error_t *error;
xcb_screen_iterator_t s;
xcb_screen_t *screen;
char *driver_name, *loader_driver_name, *device_name;
const xcb_query_extension_reply_t *extension;
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id);
xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id);
extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_xfixes_id);
if (!(extension && extension->present))
return EGL_FALSE;
extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_dri2_id);
if (!(extension && extension->present))
return EGL_FALSE;
xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn,
XCB_XFIXES_MAJOR_VERSION,
XCB_XFIXES_MINOR_VERSION);
dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn,
XCB_DRI2_MAJOR_VERSION,
XCB_DRI2_MINOR_VERSION);
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
screen = get_xcb_screen(s, dri2_dpy->screen);
if (!screen) {
_eglLog(_EGL_WARNING, "DRI2: failed to get xcb screen");
return EGL_FALSE;
}
connect_cookie = xcb_dri2_connect_unchecked(dri2_dpy->conn, screen->root,
XCB_DRI2_DRIVER_TYPE_DRI);
xfixes_query =
xcb_xfixes_query_version_reply (dri2_dpy->conn,
xfixes_query_cookie, &error);
if (xfixes_query == NULL ||
error != NULL || xfixes_query->major_version < 2) {
_eglLog(_EGL_WARNING, "DRI2: failed to query xfixes version");
free(error);
return EGL_FALSE;
}
free(xfixes_query);
dri2_query =
xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error);
if (dri2_query == NULL || error != NULL) {
_eglLog(_EGL_WARNING, "DRI2: failed to query version");
free(error);
return EGL_FALSE;
}
dri2_dpy->dri2_major = dri2_query->major_version;
dri2_dpy->dri2_minor = dri2_query->minor_version;
free(dri2_query);
connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL);
if (connect == NULL ||
connect->driver_name_length + connect->device_name_length == 0) {
_eglLog(_EGL_WARNING, "DRI2: failed to authenticate");
return EGL_FALSE;
}
device_name = xcb_dri2_connect_device_name (connect);
dri2_dpy->device_name =
strndup(device_name,
xcb_dri2_connect_device_name_length(connect));
dri2_dpy->fd = loader_open_device(dri2_dpy->device_name);
if (dri2_dpy->fd == -1) {
_eglLog(_EGL_WARNING,
"DRI2: could not open %s (%s)", dri2_dpy->device_name,
strerror(errno));
free(dri2_dpy->device_name);
free(connect);
return EGL_FALSE;
}
if (!dri2_x11_local_authenticate(dri2_dpy)) {
close(dri2_dpy->fd);
free(dri2_dpy->device_name);
free(connect);
return EGL_FALSE;
}
driver_name = xcb_dri2_connect_driver_name (connect);
/* If Mesa knows about the appropriate driver for this fd, then trust it.
* Otherwise, default to the server's value.
*/
loader_driver_name = loader_get_driver_for_fd(dri2_dpy->fd, 0);
if (loader_driver_name) {
dri2_dpy->driver_name = loader_driver_name;
} else {
dri2_dpy->driver_name =
strndup(driver_name,
xcb_dri2_connect_driver_name_length(connect));
}
if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) {
close(dri2_dpy->fd);
free(dri2_dpy->device_name);
free(dri2_dpy->driver_name);
free(connect);
return EGL_FALSE;
}
free(connect);
return EGL_TRUE;
}
struct vl_screen *
vl_dri2_screen_create(Display *display, int screen)
{
struct vl_dri_screen *scrn;
const xcb_query_extension_reply_t *extension;
xcb_dri2_query_version_cookie_t dri2_query_cookie;
xcb_dri2_query_version_reply_t *dri2_query = NULL;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_dri2_connect_reply_t *connect = NULL;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
xcb_dri2_authenticate_reply_t *authenticate = NULL;
xcb_screen_iterator_t s;
xcb_generic_error_t *error = NULL;
char *device_name;
int fd, device_name_length;
unsigned driverType;
drm_magic_t magic;
assert(display);
scrn = CALLOC_STRUCT(vl_dri_screen);
if (!scrn)
return NULL;
scrn->conn = XGetXCBConnection(display);
if (!scrn->conn)
goto free_screen;
xcb_prefetch_extension_data(scrn->conn, &xcb_dri2_id);
extension = xcb_get_extension_data(scrn->conn, &xcb_dri2_id);
if (!(extension && extension->present))
goto free_screen;
dri2_query_cookie = xcb_dri2_query_version (scrn->conn,
XCB_DRI2_MAJOR_VERSION,
XCB_DRI2_MINOR_VERSION);
dri2_query = xcb_dri2_query_version_reply (scrn->conn, dri2_query_cookie, &error);
if (dri2_query == NULL || error != NULL || dri2_query->minor_version < 2)
goto free_query;
s = xcb_setup_roots_iterator(xcb_get_setup(scrn->conn));
scrn->base.xcb_screen = get_xcb_screen(s, screen);
if (!scrn->base.xcb_screen)
goto free_query;
driverType = XCB_DRI2_DRIVER_TYPE_DRI;
{
char *prime = getenv("DRI_PRIME");
if (prime) {
unsigned primeid;
errno = 0;
primeid = strtoul(prime, NULL, 0);
if (errno == 0)
driverType |=
((primeid & DRI2DriverPrimeMask) << DRI2DriverPrimeShift);
}
}
connect_cookie = xcb_dri2_connect_unchecked(
scrn->conn, ((xcb_screen_t *)(scrn->base.xcb_screen))->root, driverType);
connect = xcb_dri2_connect_reply(scrn->conn, connect_cookie, NULL);
if (connect == NULL ||
connect->driver_name_length + connect->device_name_length == 0)
goto free_connect;
device_name_length = xcb_dri2_connect_device_name_length(connect);
device_name = CALLOC(1, device_name_length + 1);
if (!device_name)
goto free_connect;
memcpy(device_name, xcb_dri2_connect_device_name(connect), device_name_length);
fd = loader_open_device(device_name);
free(device_name);
if (fd < 0)
goto free_connect;
if (drmGetMagic(fd, &magic))
goto close_fd;
authenticate_cookie = xcb_dri2_authenticate_unchecked(
scrn->conn, ((xcb_screen_t *)(scrn->base.xcb_screen))->root, magic);
authenticate = xcb_dri2_authenticate_reply(scrn->conn, authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated)
goto free_authenticate;
if (pipe_loader_drm_probe_fd(&scrn->base.dev, fd))
scrn->base.pscreen = pipe_loader_create_screen(scrn->base.dev);
if (!scrn->base.pscreen)
goto release_pipe;
scrn->base.destroy = vl_dri2_screen_destroy;
scrn->base.texture_from_drawable = vl_dri2_screen_texture_from_drawable;
scrn->base.get_dirty_area = vl_dri2_screen_get_dirty_area;
scrn->base.get_timestamp = vl_dri2_screen_get_timestamp;
scrn->base.set_next_timestamp = vl_dri2_screen_set_next_timestamp;
scrn->base.get_private = vl_dri2_screen_get_private;
scrn->base.pscreen->flush_frontbuffer = vl_dri2_flush_frontbuffer;
vl_compositor_reset_dirty_area(&scrn->dirty_areas[0]);
vl_compositor_reset_dirty_area(&scrn->dirty_areas[1]);
/* The pipe loader duplicates the fd */
close(fd);
free(authenticate);
free(connect);
free(dri2_query);
free(error);
return &scrn->base;
release_pipe:
if (scrn->base.dev)
pipe_loader_release(&scrn->base.dev, 1);
free_authenticate:
free(authenticate);
close_fd:
close(fd);
free_connect:
free(connect);
free_query:
free(dri2_query);
free(error);
free_screen:
FREE(scrn);
return NULL;
}
