XCB: minimalistic window (i.e. non-embedded) support

TBD: title and control requests

modules/video_output/Modules.am

@@ -37,4 +37,12 @@ libxcb_plugin_la_LIBADD = $(AM_LIBADD) \
 	$(XCB_LIBS) $(XCB_SHM) \
 	$(XCB_AUX_LIBS) $(XCB_IMAGE_LIBS)
 libxcb_plugin_la_DEPENDENCIES =
-EXTRA_LTLIBRARIES += libxcb_plugin.la
+
+libxcb_window_plugin_la_SOURCES = xcb/window.c
+libxcb_window_plugin_la_CFLAGS = $(AM_CFLAGS) \
+	$(XCB_CFLAGS) $(XCB_AUX_CFLAGS)
+libxcb_window_plugin_la_LIBADD = $(AM_LIBADD) \
+	$(XCB_LIBS) $(XCB_AUX_LIBS)
+libxcb_window_plugin_la_DEPENDENCIES =
+
+EXTRA_LTLIBRARIES += libxcb_plugin.la libxcb_window_plugin.la

modules/video_output/xcb/window.c

+/**
+ * @file window.c
+ * @brief X C Bindings window provider module for VLC media player
+ */
+/*****************************************************************************
+ * 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 2.0
+ * of the License, or (at your option) any later version.
+ *
+ * This library 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.
+ *
+ * You should have received a copy of the GNU Lesser 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
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdarg.h>
+#include <assert.h>
+
+#include <xcb/xcb.h>
+#include <xcb/xcb_aux.h>
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_window.h>
+
+#define DISPLAY_TEXT N_("X11 display")
+#define DISPLAY_LONGTEXT N_( \
+    "X11 hardware display to use. By default VLC will " \
+    "use the value of the DISPLAY environment variable.")
+
+static int  Open (vlc_object_t *);
+static void Close (vlc_object_t *);
+
+/*
+ * Module descriptor
+ */
+vlc_module_begin ()
+    set_shortname (N_("XCB window"))
+    set_description (N_("(Experimental) XCB video window"))
+    set_category (CAT_VIDEO)
+    set_subcategory (SUBCAT_VIDEO_VOUT)
+    set_capability ("vout_window", 10)
+    set_callbacks (Open, Close)
+
+    add_string ("x11-display", NULL, NULL,
+                DISPLAY_TEXT, DISPLAY_LONGTEXT, true)
+vlc_module_end ()
+
+static int Control (vout_window_t *, int, va_list ap);
+
+/**
+ * Create an X11 window.
+ */
+static int Open (vlc_object_t *obj)
+{
+    vout_window_t *wnd = (vout_window_t *)obj;
+    xcb_generic_error_t *err;
+    xcb_void_cookie_t ck;
+
+    /* Connect to X */
+    char *display = var_CreateGetNonEmptyString (wnd, "x11-display");
+    int snum;
+
+    xcb_connection_t *conn = xcb_connect (display, &snum);
+    free (display);
+    if (xcb_connection_has_error (conn) /*== NULL*/)
+        goto error;
+
+    /* Create window */
+    xcb_screen_t *scr = xcb_aux_get_screen (conn, snum);
+
+    xcb_window_t window = xcb_generate_id (conn);
+    ck = xcb_create_window_checked (conn, scr->root_depth, window, scr->root,
+                                    0, 0, wnd->width, wnd->height, 0,
+                                    XCB_WINDOW_CLASS_INPUT_OUTPUT,
+                                    scr->root_visual, 0, NULL);
+    err = xcb_request_check (conn, ck);
+    if (err)
+    {
+        msg_Err (wnd, "creating window: X11 error %d", err->error_code);
+        goto error;
+    }
+
+    /* Make sure the window is ready */
+    xcb_map_window (conn, window);
+    xcb_flush (conn);
+
+    wnd->handle = (void *)(intptr_t)window;
+    wnd->p_sys = conn;
+    wnd->control = Control;
+    return VLC_SUCCESS;
+
+error:
+    xcb_disconnect (conn);
+    return VLC_EGENERIC;
+}
+
+
+/**
+ * Destroys the X11 window.
+ */
+static void Close (vlc_object_t *obj)
+{
+    vout_window_t *wnd = (vout_window_t *)obj;
+    xcb_connection_t *conn = wnd->p_sys;
+    xcb_window_t window = (uintptr_t)wnd->handle;
+
+    xcb_unmap_window (conn, window);
+    xcb_destroy_window (conn, window);
+    xcb_disconnect (conn);
+}
+
+
+static int Control (vout_window_t *wnd, int cmd, va_list ap)
+{
+    msg_Err (wnd, "request %d not implemented", cmd);
+    (void)ap;
+    return VLC_EGENERIC;
+}
+