~ubuntu-branches/ubuntu/precise/kde-workspace/precise-security

/********************************************************************

 KWin - the KDE window manager

 This file is part of the KDE project.

Copyright (C) 2007 Lubos Lunak <l.lunak@kde.org>

This program 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 of the License, or

(at your option) any later version.

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.

You should have received a copy of the GNU General Public License

along with this program.  If not, see <http://www.gnu.org/licenses/>.

*********************************************************************/

// krazy:skip

/*

 The only purpose of this file is to be later in the link order than

 (nvidia's) libGL, thus being initialized by the dynamic linker before it,

 allowing it to set __GL_YIELD=NOTHING soon enough for libGL to notice it.

*/

#include <stdlib.h>

#include <kdefakes.h>

class kwinnvidiahack

{

public:

    kwinnvidiahack();

};

kwinnvidiahack::kwinnvidiahack()

{

    const char* env = getenv("KWIN_NVIDIA_HACK");

#if 1 // turned on by default

    if (env == NULL || env[ 0 ] != '0')

        setenv("__GL_YIELD", "NOTHING", true);

#else // turned off by default

    if (env != NULL && env[ 0 ] != '0')

        setenv("__GL_YIELD", "NOTHING", true);

#endif

}

kwinnvidiahack kwinnvidiahackinst;