mirror of https://code.videolan.org/videolan/vlc
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*****************************************************************************
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* vlc_xlib.h: initialization of Xlib
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*****************************************************************************
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* Copyright (C) 2010 Rémi Denis-Courmont
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef VLC_XLIB_H
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# define VLC_XLIB_H 1
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# include <stdio.h>
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# include <stdlib.h>
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# include <X11/Xlib.h>
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# include <X11/Xlibint.h>
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#include <vlc_threads.h>
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static inline bool vlc_xlib_init (vlc_object_t *obj)
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{
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if (!var_InheritBool (obj, "xlib"))
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return false;
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bool ok = false;
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/* XInitThreads() can be called multiple times,
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* but it is not reentrant, so we need this global lock. */
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vlc_global_lock (VLC_XLIB_MUTEX);
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if (_Xglobal_lock == NULL && unlikely(_XErrorFunction != NULL))
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/* (_Xglobal_lock == NULL) => Xlib threads not initialized */
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/* (_XErrorFunction != NULL) => Xlib already in use */
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fprintf (stderr, "%s:%u:%s: Xlib not initialized for threads.\n"
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"This process is probably using LibVLC incorrectly.\n"
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"Pass \"--no-xlib\" to libvlc_new() to fix this.\n",
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__FILE__, __LINE__, __func__);
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else if (XInitThreads ())
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ok = true;
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vlc_global_unlock (VLC_XLIB_MUTEX);
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if (!ok)
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msg_Err (obj, "Xlib not initialized for threads");
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return ok;
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}
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#endif
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