/*
 * 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.
 */

#include <GL/glx.h>
#include <GL/gl.h>
#include <stdio.h>

#define printError(...) fprintf(stderr, __VA_ARGS__)

#define TEST(str, dpy, name) do {                                  \
    str = glXGetClientString(dpy, name);                           \
    if (!str) {                                                    \
        printf("Error getting client string for " #name "!\n");    \
        goto fail;                                                 \
    }                                                              \
    printf(#name " = %s\n", str);                                  \
} while(0)

int main(int argc, char **argv)
{
    Display *dpy = XOpenDisplay(NULL);
    const char *str;

    if (!dpy) {
        printError("No display!\n");
        return 1;
    }

    TEST(str, dpy, GLX_VENDOR);
    TEST(str, dpy, GLX_VERSION);
    TEST(str, dpy, GLX_EXTENSIONS);

    XCloseDisplay(dpy);
    return 0;

fail:
    XCloseDisplay(dpy);
    return 1;
}