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.
21 #include <GLES2/gl2.h>
27 * GNUC has the ability to check format strings that follow the syntax used in printf and others.
28 Hide the differences between different compilers in this GNUC_FORMAT_CHECK macro.
29 Copied from Wireshark sources.
32 #define GNUC_FORMAT_CHECK(archetype, string_index, first_to_check) __attribute__((format (archetype, string_index, first_to_check)))
34 #define GNUC_FORMAT_CHECK(archetype, string_index, first_to_check)
37 /* Function name resolving: Call this after initialising the context, but before any utility function is called */
38 typedef void (*T_proc)(void);
39 typedef T_proc (*T_glGetProcAddress)(char const * procname);
40 void resolveFunctionPointers(T_glGetProcAddress p_glGetProcAddress);
42 /* The actual utility functions */
43 void die(const char *msg, ...) GNUC_FORMAT_CHECK(printf, 1, 2);
44 void checkGlError(const char *what);
45 void initialise2dProjection();
46 void drawQuad(GLfloat red, GLfloat green, GLfloat blue, GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2);