1 /* gltest - small OpenGL tearing test program
2 * Copyright (C) 2012-2013 Ralf Jung <post@ralfj.de>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
25 void die(const char *msg, ...)
29 vfprintf(stderr, msg, ap);
34 static const char *glErrorToString(GLenum e)
36 #define CASE(name) case name: return #name
39 CASE(GL_INVALID_ENUM);
40 CASE(GL_INVALID_VALUE);
41 CASE(GL_INVALID_OPERATION);
43 CASE(GL_STACK_OVERFLOW);
44 CASE(GL_STACK_UNDERFLOW);
46 CASE(GL_OUT_OF_MEMORY);
47 default: return "<unknown>";
52 void checkGlError(const char *what)
54 GLenum e = glGetError();
55 if (e == GL_NO_ERROR) return;
56 die("GL error %d (%s): %s\n", e, glErrorToString(e), what);