/*****************************************************************************
* Copyright © 2009 Rémi Denis-Courmont
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- ****************************************************************************/
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
err = xcb_request_check (conn, ck);
if (err)
{
- msg_Err (vd, "%s: X11 error %d", str, err->error_code);
+ int code = err->error_code;
+
free (err);
- return VLC_EGENERIC;
+ msg_Err (vd, "%s: X11 error %d", str, code);
+ assert (code != 0);
+ return code;
}
- return VLC_SUCCESS;
-}
-
-/**
- * Gets the size of an X window.
- */
-int GetWindowSize (struct vout_window_t *wnd, xcb_connection_t *conn,
- unsigned *restrict width, unsigned *restrict height)
-{
- xcb_get_geometry_cookie_t ck = xcb_get_geometry (conn, wnd->handle.xid);
- xcb_get_geometry_reply_t *geo = xcb_get_geometry_reply (conn, ck, NULL);
-
- if (!geo)
- return -1;
-
- *width = geo->width;
- *height = geo->height;
- free (geo);
return 0;
}
/**
- * Create a blank cursor.
- * Note that the pixmaps are leaked (until the X disconnection). Hence, this
- * function should be called no more than once per X connection.
- * @param conn XCB connection
- * @param scr target XCB screen
+ * Connect to the X server.
*/
-xcb_cursor_t CreateBlankCursor (xcb_connection_t *conn,
- const xcb_screen_t *scr)
+static xcb_connection_t *Connect (vlc_object_t *obj, const char *display)
{
- xcb_cursor_t cur = xcb_generate_id (conn);
- xcb_pixmap_t pix = xcb_generate_id (conn);
+ xcb_connection_t *conn = xcb_connect (display, NULL);
+ if (xcb_connection_has_error (conn) /*== NULL*/)
+ {
+ msg_Err (obj, "cannot connect to X server (%s)",
+ (display != NULL) ? display : "default");
+ xcb_disconnect (conn);
+ return NULL;
+ }
- xcb_create_pixmap (conn, 1, pix, scr->root, 1, 1);
- xcb_create_cursor (conn, cur, pix, pix, 0, 0, 0, 0, 0, 0, 1, 1);
- return cur;
+ const xcb_setup_t *setup = xcb_get_setup (conn);
+ msg_Dbg (obj, "connected to X%"PRIu16".%"PRIu16" server",
+ setup->protocol_major_version, setup->protocol_minor_version);
+ char *vendor = strndup (xcb_setup_vendor (setup), setup->vendor_len);
+ if (vendor)
+ {
+ msg_Dbg (obj, " vendor : %s", vendor);
+ free (vendor);
+ }
+ msg_Dbg (obj, " version: %"PRIu32, setup->release_number);
+ return conn;
}
/**
* (Try to) register to mouse events on a window if needed.
*/
-void RegisterMouseEvents (vlc_object_t *obj, xcb_connection_t *conn,
- xcb_window_t wnd)
+static void RegisterEvents (vlc_object_t *obj, xcb_connection_t *conn,
+ xcb_window_t wnd)
{
/* Subscribe to parent window resize events */
uint32_t value = XCB_EVENT_MASK_POINTER_MOTION
}
}
+/**
+ * Find screen matching a given root window.
+ */
+static const xcb_screen_t *FindScreen (vlc_object_t *obj,
+ xcb_connection_t *conn,
+ xcb_window_t root)
+{
+ /* Find the selected screen */
+ const xcb_setup_t *setup = xcb_get_setup (conn);
+ for (xcb_screen_iterator_t i = xcb_setup_roots_iterator (setup);
+ i.rem > 0; xcb_screen_next (&i))
+ {
+ if (i.data->root == root)
+ {
+ msg_Dbg (obj, "using screen 0x%"PRIx32, root);
+ return i.data;
+ }
+ }
+ msg_Err (obj, "window screen not found");
+ return NULL;
+}
+
+/**
+ * Create a VLC video X window object, connect to the corresponding X server,
+ * find the corresponding X server screen.
+ */
+vout_window_t *GetWindow (vout_display_t *vd,
+ xcb_connection_t **restrict pconn,
+ const xcb_screen_t **restrict pscreen,
+ uint8_t *restrict pdepth,
+ uint16_t *restrict pwidth,
+ uint16_t *restrict pheight)
+{
+ vout_window_cfg_t cfg = {
+ .type = VOUT_WINDOW_TYPE_XID,
+ .x = var_InheritInteger (vd, "video-x"),
+ .y = var_InheritInteger (vd, "video-y"),
+ .width = vd->cfg->display.width,
+ .height = vd->cfg->display.height,
+ };
+
+ vout_window_t *wnd = vout_display_NewWindow (vd, &cfg);
+ if (wnd == NULL)
+ {
+ msg_Err (vd, "window not available");
+ return NULL;
+ }
+
+ xcb_connection_t *conn = Connect (VLC_OBJECT(vd), wnd->display.x11);
+ if (conn == NULL)
+ goto error;
+ *pconn = conn;
+
+ /* Events must be registered before the window geometry is queried, so as
+ * to avoid missing impeding resize events. */
+ RegisterEvents (VLC_OBJECT(vd), conn, wnd->handle.xid);
+
+ xcb_get_geometry_reply_t *geo =
+ xcb_get_geometry_reply (conn, xcb_get_geometry (conn, wnd->handle.xid),
+ NULL);
+ if (geo == NULL)
+ {
+ msg_Err (vd, "window not valid");
+ goto error;
+ }
+ *pdepth = geo->depth;
+ *pwidth = geo->width;
+ *pheight = geo->height;
+
+ const xcb_screen_t *screen = FindScreen (VLC_OBJECT(vd), conn, geo->root);
+ free (geo);
+ if (screen == NULL)
+ goto error;
+ *pscreen = screen;
+ return wnd;
+
+error:
+ if (conn != NULL)
+ xcb_disconnect (conn);
+ vout_display_DeleteWindow (vd, wnd);
+ return NULL;
+}
+
+/**
+ * Create a blank cursor.
+ * Note that the pixmaps are leaked (until the X disconnection). Hence, this
+ * function should be called no more than once per X connection.
+ * @param conn XCB connection
+ * @param scr target XCB screen
+ */
+xcb_cursor_t CreateBlankCursor (xcb_connection_t *conn,
+ const xcb_screen_t *scr)
+{
+ xcb_cursor_t cur = xcb_generate_id (conn);
+ xcb_pixmap_t pix = xcb_generate_id (conn);
+
+ xcb_create_pixmap (conn, 1, pix, scr->root, 1, 1);
+ xcb_create_cursor (conn, cur, pix, pix, 0, 0, 0, 0, 0, 0, 1, 1);
+ return cur;
+}
+
/* NOTE: we assume no other thread will be _setting_ our video output events
* variables. Afterall, only this plugin is supposed to know when these occur.
* Otherwise, we'd var_OrInteger() and var_NandInteger() functions...
projects / vlc / blobdiff