/*

 * Copyright (c) 2013, NVIDIA CORPORATION.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and/or associated documentation files (the

 * "Materials"), to deal in the Materials without restriction, including

 * without limitation the rights to use, copy, modify, merge, publish,

 * distribute, sublicense, and/or sell copies of the Materials, and to

 * permit persons to whom the Materials are furnished to do so, subject to

 * the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * unaltered in all copies or substantial portions of the Materials.

 * Any additions, deletions, or changes to the original source files

 * must be clearly indicated in accompanying documentation.

 *

 * If only executable code is distributed, then the accompanying

 * documentation must state that "this software is based in part on the

 * work of the Khronos Group."

 *

 * THE MATERIALS ARE 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

 * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.

 */

#if !defined(__LIB_GLX_TLS)

#define __LIB_GLX_TLS

#include <pthread.h>

#include "libglxthread.h"

#include "libglxabipriv.h"

#include "libglxmapping.h"

#include "GLdispatch.h"

#include "lkdhash.h"

#include "glvnd_list.h"

typedef struct __GLXcontextInfoRec __GLXcontextInfo;

/*!

 * Define current API library state here.

 *

 * A thread will have a __GLXThreadState struct if and only if it has a current

 * GLX context. If we don't have a current context, then there's nothing useful

 * to store in it.

 *

 * The pointer to the current __GLXThreadState is stored in libGLdispatch, since

 * it's also the current __GLdispatchThreadState struct.

 */

typedef struct __GLXThreadStateRec {

    __GLdispatchThreadState glas; /* Must be the first entry! */

    __GLXvendorInfo *currentVendor;

    Display *currentDisplay;

    GLXDrawable currentDraw;

    GLXDrawable currentRead;

    __GLXcontextInfo *currentContext;

    struct glvnd_list entry;

} __GLXThreadState;

/*!

 * Looks up the current thread state.

 *

 * If there isn't a current context, or if the current context was set by

 * another library like EGL, then this will return \c NULL.

 */

static inline __GLXThreadState *__glXGetCurrentThreadState(void)

{

    __GLdispatchThreadState *glas = __glDispatchGetCurrentThreadState();

    if (unlikely(!glas ||

                 (glas->tag != GLDISPATCH_API_GLX))) {

        return NULL;

    } else {

        return (__GLXThreadState *)(glas);

    }

}

/*!

 * This gets the current GLX dynamic dispatch table, which is stored in the

 * thread state.

 */

__GLXvendorInfo *__glXGetCurrentDynDispatch(void);

#endif // !defined(__LIB_GLX_TLS)