opengl: make vertex shader human readable
[vlc.git] / include / vlc_gcrypt.h
bloba04e1b1d868d04440f61f37374f43e92597db6ad
1 /*****************************************************************************
2 * vlc_gcrypt.h: VLC thread support for gcrypt
3 *****************************************************************************
4 * Copyright (C) 2004-2010 RĂ©mi Denis-Courmont
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation; either version 2.1 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 *****************************************************************************/
21 /**
22 * \file
23 * This file implements gcrypt support functions in vlc
26 #include <errno.h>
28 static inline void vlc_gcrypt_init (void)
30 /* This would need a process-wide static mutex with all libraries linking
31 * to a given instance of libgcrypt. We cannot do this as we have different
32 * plugins linking with gcrypt, and some underlying libraries may use it
33 * behind our back. Only way is to always link gcrypt statically (ouch!) or
34 * have upstream gcrypt provide one shared object per threading system. */
35 static bool done = false;
37 vlc_global_lock (VLC_GCRYPT_MUTEX);
38 if (!done)
40 /* The suggested way for an application to make sure that global_init
41 * has been called is by using gcry_check_version. (see global_init
42 * comments in gcrypt sources) */
43 gcry_check_version(NULL);
44 done = true;
46 vlc_global_unlock (VLC_GCRYPT_MUTEX);