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check for GLX 1.3 during init

This commit is contained in:
Brian Paul 2004-03-26 14:17:31 +00:00
parent 3623579e43
commit 68b38d2751
1 changed files with 10 additions and 2 deletions
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12
progs/xdemos/wincopy.c
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@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 5.1
* Version: 6.1
*
* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2004 Brian Paul 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"),
@ -38,6 +38,7 @@
#include <X11/keysym.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
@ -247,6 +248,7 @@ Init(void)
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
None };
int major, minor;
Dpy = XOpenDisplay(NULL);
if (!Dpy) {
@ -256,6 +258,12 @@ Init(void)
ScrNum = DefaultScreen(Dpy);
glXQueryVersion(Dpy, &major, &minor);
if (major * 100 + minor < 103) {
fprintf(stderr, "Sorry, this program requires GLX 1.3\n");
exit(1);
}
visinfo = glXChooseVisual(Dpy, ScrNum, attrib);
if (!visinfo) {
printf("Unable to find RGB, double-buffered visual\n");