Ejemplo n.º 1
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;
    }
}
Ejemplo n.º 2
0
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
}
Ejemplo n.º 3
0
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;
}
Ejemplo n.º 4
0
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;
}
Ejemplo n.º 6
0
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;
}