static int
dri2_x11_do_authenticate(struct dri2_egl_display *dri2_dpy, uint32_t id)
{
xcb_dri2_authenticate_reply_t *authenticate;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
xcb_screen_iterator_t s;
xcb_screen_t *screen;
int ret = 0;
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 -1;
}
authenticate_cookie =
xcb_dri2_authenticate_unchecked(dri2_dpy->conn, screen->root, id);
authenticate =
xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated)
ret = -1;
free(authenticate);
return ret;
}
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_get_xcb_connection(_EGLDriver *drv, _EGLDisplay *disp,
struct dri2_egl_display *dri2_dpy)
{
xcb_screen_iterator_t s;
int screen = (uintptr_t)disp->Options.Platform;
const char *msg;
disp->DriverData = (void *) dri2_dpy;
if (disp->PlatformDisplay == NULL) {
dri2_dpy->conn = xcb_connect(NULL, &screen);
dri2_dpy->own_device = true;
} else {
Display *dpy = disp->PlatformDisplay;
dri2_dpy->conn = XGetXCBConnection(dpy);
screen = DefaultScreen(dpy);
}
if (!dri2_dpy->conn || xcb_connection_has_error(dri2_dpy->conn)) {
msg = "xcb_connect failed";
goto disconnect;
}
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
dri2_dpy->screen = get_xcb_screen(s, screen);
if (!dri2_dpy->screen) {
msg = "failed to get xcb screen";
goto disconnect;
}
return EGL_TRUE;
disconnect:
if (disp->PlatformDisplay == NULL)
xcb_disconnect(dri2_dpy->conn);
return _eglError(EGL_BAD_ALLOC, msg);
}
static EGLBoolean
dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
_EGLDisplay *disp, bool supports_preserved)
{
xcb_screen_iterator_t s;
xcb_depth_iterator_t d;
xcb_visualtype_t *visuals;
int i, j, id;
unsigned int rgba_masks[4];
EGLint surface_type;
EGLint config_attrs[] = {
EGL_NATIVE_VISUAL_ID, 0,
EGL_NATIVE_VISUAL_TYPE, 0,
EGL_NONE
};
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
d = xcb_screen_allowed_depths_iterator(get_xcb_screen(s, dri2_dpy->screen));
id = 1;
surface_type =
EGL_WINDOW_BIT |
EGL_PIXMAP_BIT |
EGL_PBUFFER_BIT;
if (supports_preserved)
surface_type |= EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
while (d.rem > 0) {
EGLBoolean class_added[6] = { 0, };
visuals = xcb_depth_visuals(d.data);
for (i = 0; i < xcb_depth_visuals_length(d.data); i++) {
if (class_added[visuals[i]._class])
continue;
class_added[visuals[i]._class] = EGL_TRUE;
for (j = 0; dri2_dpy->driver_configs[j]; j++) {
config_attrs[1] = visuals[i].visual_id;
config_attrs[3] = visuals[i]._class;
rgba_masks[0] = visuals[i].red_mask;
rgba_masks[1] = visuals[i].green_mask;
rgba_masks[2] = visuals[i].blue_mask;
rgba_masks[3] = 0;
dri2_add_config(disp, dri2_dpy->driver_configs[j], id++,
surface_type, config_attrs, rgba_masks);
/* Allow a 24-bit RGB visual to match a 32-bit RGBA EGLConfig.
* Otherwise it will only match a 32-bit RGBA visual. On a
* composited window manager on X11, this will make all of the
* EGLConfigs with destination alpha get blended by the
* compositor. This is probably not what the application
* wants... especially on drivers that only have 32-bit RGBA
* EGLConfigs! */
if (d.data->depth == 24) {
rgba_masks[3] =
~(rgba_masks[0] | rgba_masks[1] | rgba_masks[2]);
dri2_add_config(disp, dri2_dpy->driver_configs[j], id++,
surface_type, config_attrs, rgba_masks);
}
}
}
xcb_depth_next(&d);
}
if (!_eglGetArraySize(disp->Configs)) {
_eglLog(_EGL_WARNING, "DRI2: failed to create any config");
return EGL_FALSE;
}
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;
}
/**
* Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
*/
static _EGLSurface *
dri2_x11_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
_EGLConfig *conf, void *native_surface,
const EGLint *attrib_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
struct dri2_egl_surface *dri2_surf;
xcb_get_geometry_cookie_t cookie;
xcb_get_geometry_reply_t *reply;
xcb_screen_iterator_t s;
xcb_generic_error_t *error;
xcb_drawable_t drawable;
xcb_screen_t *screen;
const __DRIconfig *config;
STATIC_ASSERT(sizeof(uintptr_t) == sizeof(native_surface));
drawable = (uintptr_t) native_surface;
(void) drv;
dri2_surf = malloc(sizeof *dri2_surf);
if (!dri2_surf) {
_eglError(EGL_BAD_ALLOC, "dri2_create_surface");
return NULL;
}
if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
goto cleanup_surf;
dri2_surf->region = XCB_NONE;
if (type == EGL_PBUFFER_BIT) {
s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
screen = get_xcb_screen(s, dri2_dpy->screen);
if (!screen) {
_eglError(EGL_BAD_ALLOC, "failed to get xcb screen");
goto cleanup_surf;
}
dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn);
xcb_create_pixmap(dri2_dpy->conn, conf->BufferSize,
dri2_surf->drawable, screen->root,
dri2_surf->base.Width, dri2_surf->base.Height);
} else {
if (!drawable) {
if (type == EGL_WINDOW_BIT)
_eglError(EGL_BAD_NATIVE_WINDOW, "dri2_create_surface");
else
_eglError(EGL_BAD_NATIVE_PIXMAP, "dri2_create_surface");
goto cleanup_surf;
}
dri2_surf->drawable = drawable;
}
config = dri2_get_dri_config(dri2_conf, type,
dri2_surf->base.GLColorspace);
if (dri2_dpy->dri2) {
dri2_surf->dri_drawable =
(*dri2_dpy->dri2->createNewDrawable)(dri2_dpy->dri_screen, config,
dri2_surf);
} else {
assert(dri2_dpy->swrast);
dri2_surf->dri_drawable =
(*dri2_dpy->swrast->createNewDrawable)(dri2_dpy->dri_screen, config,
dri2_surf);
}
if (dri2_surf->dri_drawable == NULL) {
_eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
goto cleanup_pixmap;
}
if (type != EGL_PBUFFER_BIT) {
cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable);
reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
if (error != NULL) {
if (error->error_code == BadAlloc)
_eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
else if (type == EGL_WINDOW_BIT)
_eglError(EGL_BAD_NATIVE_WINDOW, "xcb_get_geometry");
else
_eglError(EGL_BAD_NATIVE_PIXMAP, "xcb_get_geometry");
free(error);
goto cleanup_dri_drawable;
} else if (reply == NULL) {
_eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
goto cleanup_dri_drawable;
}
dri2_surf->base.Width = reply->width;
dri2_surf->base.Height = reply->height;
dri2_surf->depth = reply->depth;
free(reply);
}
if (dri2_dpy->dri2) {
xcb_void_cookie_t cookie;
int conn_error;
cookie = xcb_dri2_create_drawable_checked(dri2_dpy->conn,
dri2_surf->drawable);
error = xcb_request_check(dri2_dpy->conn, cookie);
conn_error = xcb_connection_has_error(dri2_dpy->conn);
if (conn_error || error != NULL) {
if (type == EGL_PBUFFER_BIT || conn_error || error->error_code == BadAlloc)
_eglError(EGL_BAD_ALLOC, "xcb_dri2_create_drawable_checked");
else if (type == EGL_WINDOW_BIT)
_eglError(EGL_BAD_NATIVE_WINDOW,
"xcb_dri2_create_drawable_checked");
else
_eglError(EGL_BAD_NATIVE_PIXMAP,
"xcb_dri2_create_drawable_checked");
free(error);
goto cleanup_dri_drawable;
}
} else {
if (type == EGL_PBUFFER_BIT) {
dri2_surf->depth = _eglGetConfigKey(conf, EGL_BUFFER_SIZE);
}
swrastCreateDrawable(dri2_dpy, dri2_surf);
}
/* we always copy the back buffer to front */
dri2_surf->base.PostSubBufferSupportedNV = EGL_TRUE;
return &dri2_surf->base;
cleanup_dri_drawable:
dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
cleanup_pixmap:
if (type == EGL_PBUFFER_BIT)
xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable);
cleanup_surf:
free(dri2_surf);
return NULL;
}
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;
}
