3 * @brief X C Bindings window provider module for VLC media player
5 /*****************************************************************************
6 * Copyright © 2009 Rémi Denis-Courmont
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2.0
11 * of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 ****************************************************************************/
32 #include <xcb/xcb_aux.h>
33 typedef xcb_atom_t Atom;
34 #include <X11/Xatom.h> /* XA_WM_NAME */
36 #include <vlc_common.h>
37 #include <vlc_plugin.h>
38 #include <vlc_window.h>
42 #define DISPLAY_TEXT N_("X11 display")
43 #define DISPLAY_LONGTEXT N_( \
44 "X11 hardware display to use. By default VLC will " \
45 "use the value of the DISPLAY environment variable.")
47 static int Open (vlc_object_t *);
48 static void Close (vlc_object_t *);
54 set_shortname (N_("XCB window"))
55 set_description (N_("(Experimental) XCB video window"))
56 set_category (CAT_VIDEO)
57 set_subcategory (SUBCAT_VIDEO_VOUT)
58 set_capability ("xwindow", 10)
59 set_callbacks (Open, Close)
61 add_string ("x11-display", NULL, NULL,
62 DISPLAY_TEXT, DISPLAY_LONGTEXT, true)
65 static int Control (vout_window_t *, int, va_list ap);
66 static void *Thread (void *);
68 struct vout_window_sys_t
70 xcb_connection_t *conn;
76 void set_ascii_prop (xcb_connection_t *conn, xcb_window_t window,
77 xcb_atom_t atom, const char *value)
79 xcb_change_property (conn, XCB_PROP_MODE_REPLACE, window, atom,
80 XA_STRING, 8, strlen (value), value);
84 * Create an X11 window.
86 static int Open (vlc_object_t *obj)
88 vout_window_t *wnd = (vout_window_t *)obj;
89 vout_window_sys_t *p_sys = malloc (sizeof (*p_sys));
90 xcb_generic_error_t *err;
97 char *display = var_CreateGetNonEmptyString (wnd, "x11-display");
100 xcb_connection_t *conn = xcb_connect (display, &snum);
102 if (xcb_connection_has_error (conn) /*== NULL*/)
106 xcb_screen_t *scr = xcb_aux_get_screen (conn, snum);
107 const uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
108 uint32_t values[2] = {
109 /* XCB_CW_BACK_PIXEL */
111 /* XCB_CW_EVENT_MASK */
112 XCB_EVENT_MASK_KEY_PRESS,
115 xcb_window_t window = xcb_generate_id (conn);
116 ck = xcb_create_window_checked (conn, scr->root_depth, window, scr->root,
117 0, 0, wnd->width, wnd->height, 0,
118 XCB_WINDOW_CLASS_INPUT_OUTPUT,
119 scr->root_visual, mask, values);
120 err = xcb_request_check (conn, ck);
123 msg_Err (wnd, "creating window: X11 error %d", err->error_code);
127 /* Plain ASCII localization of VLC for ICCCM window name */
128 set_ascii_prop (conn, window, XA_WM_NAME,
129 pgettext ("ASCII VLC media player", "VLC media player"));
130 set_ascii_prop (conn, window, XA_WM_ICON_NAME,
131 pgettext ("ASCII VLC", "VLC"));
133 wnd->handle.xid = window;
135 wnd->control = Control;
138 p_sys->keys = CreateKeyHandler (obj, conn);
140 if ((p_sys->keys != NULL)
141 && vlc_clone (&p_sys->thread, Thread, wnd, VLC_THREAD_PRIORITY_LOW))
142 DestroyKeyHandler (p_sys->keys);
144 /* Make sure the window is ready */
145 xcb_map_window (conn, window);
151 xcb_disconnect (conn);
158 * Destroys the X11 window.
160 static void Close (vlc_object_t *obj)
162 vout_window_t *wnd = (vout_window_t *)obj;
163 vout_window_sys_t *p_sys = wnd->p_sys;
164 xcb_connection_t *conn = p_sys->conn;
165 xcb_window_t window = wnd->handle.xid;
169 vlc_cancel (p_sys->thread);
170 vlc_join (p_sys->thread, NULL);
171 DestroyKeyHandler (p_sys->keys);
173 xcb_unmap_window (conn, window);
174 xcb_destroy_window (conn, window);
175 xcb_disconnect (conn);
180 static void *Thread (void *data)
182 vout_window_t *wnd = data;
183 vout_window_sys_t *p_sys = wnd->p_sys;
184 xcb_connection_t *conn = p_sys->conn;
186 int fd = xcb_get_file_descriptor (conn);
192 xcb_generic_event_t *ev;
193 struct pollfd ufd = { .fd = fd, .events = POLLIN, };
197 int canc = vlc_savecancel ();
198 while ((ev = xcb_poll_for_event (conn)) != NULL)
200 if (ProcessKeyEvent (p_sys->keys, ev) == 0)
202 msg_Dbg (wnd, "unhandled event: %"PRIu8, ev->response_type);
205 vlc_restorecancel (canc);
207 if (xcb_connection_has_error (conn))
209 msg_Err (wnd, "X server failure");
216 #include <vlc_vout.h>
218 static int Control (vout_window_t *wnd, int cmd, va_list ap)
220 vout_window_sys_t *p_sys = wnd->p_sys;
221 xcb_connection_t *conn = p_sys->conn;
227 unsigned width = va_arg (ap, unsigned);
228 unsigned height = va_arg (ap, unsigned);
229 const uint32_t values[] = { width, height, };
231 xcb_configure_window (conn, wnd->handle.xid,
232 XCB_CONFIG_WINDOW_WIDTH |
233 XCB_CONFIG_WINDOW_HEIGHT, values);
239 msg_Err (wnd, "request %d not implemented", cmd);