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/**************************************************************************
*
* Copyright 2008 VMware, Inc.
* Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
* Copyright 2010-2011 LunarG, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include <stdlib.h>
#include <assert.h>
#include "eglglobals.h"
#include "egldisplay.h"
#include "egldriver.h"
#include "eglmutex.h"
static _EGLMutex _eglGlobalMutex = _EGL_MUTEX_INITIALIZER;
struct _egl_global _eglGlobal =
{
&_eglGlobalMutex, /* Mutex */
NULL, /* DisplayList */
2, /* NumAtExitCalls */
{
/* default AtExitCalls, called in reverse order */
_eglUnloadDrivers, /* always called last */
_eglFiniDisplay
},
/* ClientExtensions */
{
true /* EGL_EXT_client_extensions */
},
/* ClientExtensionsString */
"EGL_EXT_client_extensions"
};
static void
_eglAtExit(void)
{
EGLint i;
for (i = _eglGlobal.NumAtExitCalls - 1; i >= 0; i--)
_eglGlobal.AtExitCalls[i]();
}
void
_eglAddAtExitCall(void (*func)(void))
{
if (func) {
static EGLBoolean registered = EGL_FALSE;
_eglLockMutex(_eglGlobal.Mutex);
if (!registered) {
atexit(_eglAtExit);
registered = EGL_TRUE;
}
assert(_eglGlobal.NumAtExitCalls < ARRAY_SIZE(_eglGlobal.AtExitCalls));
_eglGlobal.AtExitCalls[_eglGlobal.NumAtExitCalls++] = func;
_eglUnlockMutex(_eglGlobal.Mutex);
}
}
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