/*****************************************************************************
* 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 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 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
- ****************************************************************************/
+ * 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>
#endif
#include <inttypes.h>
+#include <assert.h>
#include <xcb/xcb.h>
#include <vlc_common.h>
-#include <vlc_vout.h>
+#include <vlc_vout_display.h>
#include "xcb_vlc.h"
+/**
+ * Check for an error
+ */
+int CheckError (vout_display_t *vd, xcb_connection_t *conn,
+ const char *str, xcb_void_cookie_t ck)
+{
+ xcb_generic_error_t *err;
+
+ err = xcb_request_check (conn, ck);
+ if (err)
+ {
+ int code = err->error_code;
+
+ free (err);
+ msg_Err (vd, "%s: X11 error %d", str, code);
+ assert (code != 0);
+ return code;
+ }
+ return 0;
+}
+
+/**
+ * Connect to the X server.
+ */
+static xcb_connection_t *Connect (vlc_object_t *obj, const char *display)
+{
+ 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;
+ }
+
+ 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.
+ */
+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
+ | XCB_EVENT_MASK_STRUCTURE_NOTIFY;
+ xcb_change_window_attributes (conn, wnd, XCB_CW_EVENT_MASK, &value);
+ /* Try to subscribe to click events */
+ /* (only one X11 client can get them, so might not work) */
+ if (var_InheritBool (obj, "mouse-events"))
+ {
+ value |= XCB_EVENT_MASK_BUTTON_PRESS
+ | XCB_EVENT_MASK_BUTTON_RELEASE;
+ xcb_change_window_attributes (conn, wnd,
+ XCB_CW_EVENT_MASK, &value);
+ }
+}
+
+/**
+ * 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...
*/
-static void HandleButtonPress (vout_thread_t *vout,
- xcb_button_press_event_t *ev)
+/* FIXME we assume direct mapping between XCB and VLC */
+static void HandleButtonPress (vout_display_t *vd,
+ const xcb_button_press_event_t *ev)
+{
+ vout_display_SendEventMousePressed (vd, ev->detail - 1);
+}
+
+static void HandleButtonRelease (vout_display_t *vd,
+ const xcb_button_release_event_t *ev)
{
- unsigned buttons = var_GetInteger (vout, "mouse-button-down");
- buttons |= (1 << (ev->detail - 1));
- var_SetInteger (vout, "mouse-button-down", buttons);
+ vout_display_SendEventMouseReleased (vd, ev->detail - 1);
}
-static void HandleButtonRelease (vout_thread_t *vout,
- xcb_button_release_event_t *ev)
+static void HandleMotionNotify (vout_display_t *vd, xcb_connection_t *conn,
+ const xcb_motion_notify_event_t *ev)
{
- unsigned buttons = var_GetInteger (vout, "mouse-button-down");
- buttons &= ~(1 << (ev->detail - 1));
- var_SetInteger (vout, "mouse-button-down", buttons);
+ vout_display_place_t place;
- switch (ev->detail)
- {
- case 1: /* left mouse button */
- var_SetBool (vout, "mouse-clicked", true);
- var_SetBool (vout->p_libvlc, "intf-popupmenu", false);
- break;
- case 3:
- var_SetBool (vout->p_libvlc, "intf-popupmenu", true);
- break;
- }
+ /* show the default cursor */
+ xcb_change_window_attributes (conn, ev->event, XCB_CW_CURSOR,
+ &(uint32_t) { XCB_CURSOR_NONE });
+ xcb_flush (conn);
+
+ /* TODO it could be saved */
+ vout_display_PlacePicture (&place, &vd->source, vd->cfg, false);
+
+ if (place.width <= 0 || place.height <= 0)
+ return;
+
+ const int x = vd->source.i_x_offset +
+ (int64_t)(ev->event_x - place.x) * vd->source.i_visible_width / place.width;
+ const int y = vd->source.i_y_offset +
+ (int64_t)(ev->event_y - place.y) * vd->source.i_visible_height/ place.height;
+
+ vout_display_SendEventMouseMoved (vd, x, y);
}
-static void HandleMotionNotify (vout_thread_t *vout,
- xcb_motion_notify_event_t *ev)
+static void HandleVisibilityNotify (vout_display_t *vd, bool *visible,
+ const xcb_visibility_notify_event_t *ev)
{
- unsigned x, y, width, height;
- int v;
-
- vout_PlacePicture (vout, vout->output.i_width, vout->output.i_height,
- &x, &y, &width, &height);
- v = vout->fmt_in.i_x_offset
- + ((ev->event_x - x) * vout->fmt_in.i_visible_width / width);
- if (v < 0)
- v = 0; /* to the left of the picture */
- else if ((unsigned)v > vout->fmt_in.i_width)
- v = vout->fmt_in.i_width; /* to the right of the picture */
- var_SetInteger (vout, "mouse-x", v);
-
- v = vout->fmt_in.i_y_offset
- + ((ev->event_y - y) * vout->fmt_in.i_visible_height / height);
- if (v < 0)
- v = 0; /* above the picture */
- else if ((unsigned)v > vout->fmt_in.i_height)
- v = vout->fmt_in.i_height; /* below the picture */
- var_SetInteger (vout, "mouse-y", v);
+ *visible = ev->state != XCB_VISIBILITY_FULLY_OBSCURED;
+ msg_Dbg (vd, "display is %svisible", *visible ? "" : "not ");
+}
+
+static void
+HandleParentStructure (vout_display_t *vd,
+ const xcb_configure_notify_event_t *ev)
+{
+ vout_display_SendEventDisplaySize (vd, ev->width, ev->height, vd->cfg->is_fullscreen);
}
/**
* Process an X11 event.
*/
-int ProcessEvent (vout_thread_t *vout, xcb_generic_event_t *ev)
+static int ProcessEvent (vout_display_t *vd, xcb_connection_t *conn,
+ bool *visible, xcb_generic_event_t *ev)
{
switch (ev->response_type & 0x7f)
{
case XCB_BUTTON_PRESS:
- HandleButtonPress (vout, (xcb_button_press_event_t *)ev);
+ HandleButtonPress (vd, (xcb_button_press_event_t *)ev);
break;
case XCB_BUTTON_RELEASE:
- HandleButtonRelease (vout, (xcb_button_release_event_t *)ev);
+ HandleButtonRelease (vd, (xcb_button_release_event_t *)ev);
break;
case XCB_MOTION_NOTIFY:
- HandleMotionNotify (vout, (xcb_motion_notify_event_t *)ev);
+ HandleMotionNotify (vd, conn, (xcb_motion_notify_event_t *)ev);
+ break;
+
+ case XCB_VISIBILITY_NOTIFY:
+ HandleVisibilityNotify (vd, visible,
+ (xcb_visibility_notify_event_t *)ev);
+ break;
+
+ case XCB_CONFIGURE_NOTIFY:
+ HandleParentStructure (vd, (xcb_configure_notify_event_t *)ev);
+ break;
+
+ /* FIXME I am not sure it is the right one */
+ case XCB_DESTROY_NOTIFY:
+ vout_display_SendEventClose (vd);
+ break;
+
+ case XCB_MAPPING_NOTIFY:
break;
default:
- msg_Dbg (vout, "unhandled event %"PRIu8, ev->response_type);
+ msg_Dbg (vd, "unhandled event %"PRIu8, ev->response_type);
}
free (ev);
return VLC_SUCCESS;
}
+
+/**
+ * Process incoming X events.
+ */
+int ManageEvent (vout_display_t *vd, xcb_connection_t *conn, bool *visible)
+{
+ xcb_generic_event_t *ev;
+
+ while ((ev = xcb_poll_for_event (conn)) != NULL)
+ ProcessEvent (vd, conn, visible, ev);
+
+ if (xcb_connection_has_error (conn))
+ {
+ msg_Err (vd, "X server failure");
+ return VLC_EGENERIC;
+ }
+
+ return VLC_SUCCESS;
+}
projects / vlc / blobdiff