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 EGLBoolean
dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
dri2_dpy = calloc(1, sizeof *dri2_dpy);
if (!dri2_dpy)
return _eglError(EGL_BAD_ALLOC, "eglInitialize");
disp->DriverData = (void *) dri2_dpy;
if (disp->PlatformDisplay == NULL) {
dri2_dpy->conn = xcb_connect(0, 0);
dri2_dpy->own_device = true;
} else {
dri2_dpy->conn = XGetXCBConnection((Display *) disp->PlatformDisplay);
}
if (xcb_connection_has_error(dri2_dpy->conn)) {
_eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
goto cleanup_dpy;
}
if (dri2_dpy->conn) {
if (!dri2_x11_connect(dri2_dpy))
goto cleanup_conn;
}
if (!dri2_load_driver(disp))
goto cleanup_conn;
#ifdef O_CLOEXEC
dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR | O_CLOEXEC);
if (dri2_dpy->fd == -1 && errno == EINVAL)
#endif
{
dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
if (dri2_dpy->fd != -1)
fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) |
FD_CLOEXEC);
}
if (dri2_dpy->fd == -1) {
_eglLog(_EGL_WARNING,
"DRI2: could not open %s (%s)", dri2_dpy->device_name,
strerror(errno));
goto cleanup_driver;
}
if (dri2_dpy->conn) {
if (!dri2_x11_local_authenticate(disp))
goto cleanup_fd;
}
if (dri2_dpy->dri2_minor >= 1) {
dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
dri2_dpy->dri2_loader_extension.base.version = 3;
dri2_dpy->dri2_loader_extension.getBuffers = dri2_x11_get_buffers;
dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_x11_flush_front_buffer;
dri2_dpy->dri2_loader_extension.getBuffersWithFormat =
dri2_x11_get_buffers_with_format;
} else {
dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
dri2_dpy->dri2_loader_extension.base.version = 2;
dri2_dpy->dri2_loader_extension.getBuffers = dri2_x11_get_buffers;
dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_x11_flush_front_buffer;
dri2_dpy->dri2_loader_extension.getBuffersWithFormat = NULL;
}
dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base;
dri2_dpy->extensions[1] = &image_lookup_extension.base;
dri2_dpy->extensions[2] = NULL;
dri2_dpy->swap_available = (dri2_dpy->dri2_minor >= 2);
dri2_dpy->invalidate_available = (dri2_dpy->dri2_minor >= 3);
if (!dri2_create_screen(disp))
goto cleanup_fd;
dri2_x11_setup_swap_interval(dri2_dpy);
if (dri2_dpy->conn) {
if (!dri2_x11_add_configs_for_visuals(dri2_dpy, disp))
goto cleanup_configs;
}
disp->Extensions.KHR_image_pixmap = EGL_TRUE;
disp->Extensions.NOK_swap_region = EGL_TRUE;
disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE;
disp->Extensions.NV_post_sub_buffer = EGL_TRUE;
#ifdef HAVE_WAYLAND_PLATFORM
disp->Extensions.WL_bind_wayland_display = EGL_TRUE;
#endif
if (dri2_dpy->conn) {
if (!dri2_x11_add_configs_for_visuals(dri2_dpy, disp))
goto cleanup_configs;
}
/* we're supporting EGL 1.4 */
disp->VersionMajor = 1;
disp->VersionMinor = 4;
/* Fill vtbl last to prevent accidentally calling virtual function during
* initialization.
*/
dri2_dpy->vtbl = &dri2_x11_display_vtbl;
return EGL_TRUE;
cleanup_configs:
_eglCleanupDisplay(disp);
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
cleanup_fd:
close(dri2_dpy->fd);
cleanup_driver:
dlclose(dri2_dpy->driver);
cleanup_conn:
if (disp->PlatformDisplay == NULL)
xcb_disconnect(dri2_dpy->conn);
cleanup_dpy:
free(dri2_dpy);
return EGL_FALSE;
}
