bool QXcbConnection::hasSupportForDri2() const
{
if (!m_dri2_support_probed) {
xcb_generic_error_t *error = 0;
xcb_prefetch_extension_data (m_connection, &xcb_xfixes_id);
xcb_prefetch_extension_data (m_connection, &xcb_dri2_id);
xcb_xfixes_query_version_cookie_t xfixes_query_cookie = xcb_xfixes_query_version(m_connection,
XCB_XFIXES_MAJOR_VERSION,
XCB_XFIXES_MINOR_VERSION);
xcb_dri2_query_version_cookie_t dri2_query_cookie = xcb_dri2_query_version (m_connection,
XCB_DRI2_MAJOR_VERSION,
XCB_DRI2_MINOR_VERSION);
xcb_xfixes_query_version_reply_t *xfixes_query = xcb_xfixes_query_version_reply (m_connection,
xfixes_query_cookie, &error);
if (!xfixes_query || error || xfixes_query->major_version < 2) {
delete error;
delete xfixes_query;
return false;
}
delete xfixes_query;
xcb_dri2_query_version_reply_t *dri2_query = xcb_dri2_query_version_reply (m_connection,
dri2_query_cookie, &error);
if (!dri2_query || error) {
delete error;
delete dri2_query;
return false;
}
QXcbConnection *that = const_cast<QXcbConnection *>(this);
that->m_dri2_major = dri2_query->major_version;
that->m_dri2_minor = dri2_query->minor_version;
that->m_has_support_for_dri2 = true;
that->m_dri2_support_probed = true;
}
return m_has_support_for_dri2;
}
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;
}
static int
dri2_connect(Display *display)
{
xcb_dri2_query_version_cookie_t query_version_cookie;
xcb_dri2_query_version_reply_t *query_version_reply;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_dri2_connect_reply_t *connect_reply;
xcb_dri2_authenticate_cookie_t auth_cookie;
xcb_dri2_authenticate_reply_t *auth_reply;
xcb_screen_t *root;
xcb_connection_t *c = XGetXCBConnection(display);
drm_magic_t magic;
const xcb_query_extension_reply_t *dri2_reply;
char *device_name;
int len;
root = xcb_aux_get_screen(c, DefaultScreen(display));
dri2_reply = xcb_get_extension_data(c, &xcb_dri2_id);
if (!dri2_reply) {
XVMC_ERR("DRI2 required");
return BadValue;
}
/* Query the extension and make our first use of it at the same time. */
query_version_cookie = xcb_dri2_query_version(c, 1, 0);
connect_cookie = xcb_dri2_connect(c, root->root, DRI2DriverDRI);
query_version_reply =
xcb_dri2_query_version_reply(c, query_version_cookie, NULL);
connect_reply = xcb_dri2_connect_reply(c, connect_cookie, NULL);
if (!query_version_reply) {
XVMC_ERR("DRI2 required");
return BadValue;
}
free(query_version_reply);
len = xcb_dri2_connect_device_name_length(connect_reply);
device_name = malloc(len + 1);
if (!device_name) {
XVMC_ERR("malloc failure");
return BadAlloc;
}
strncpy(device_name, xcb_dri2_connect_device_name(connect_reply), len);
device_name[len] = 0;
xvmc_driver->fd = open(device_name, O_RDWR);
free(device_name);
free(connect_reply);
if (xvmc_driver->fd < 0) {
XVMC_ERR("Failed to open drm device: %s\n", strerror(errno));
return BadValue;
}
if (drmGetMagic(xvmc_driver->fd, &magic)) {
XVMC_ERR("Failed to get magic\n");
return BadValue;
}
auth_cookie = xcb_dri2_authenticate(c, root->root, magic);
auth_reply = xcb_dri2_authenticate_reply(c, auth_cookie, NULL);
if (!auth_reply) {
XVMC_ERR("Failed to authenticate magic %d\n", magic);
return BadValue;
}
free(auth_reply);
return Success;
}
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;
}
