4 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
6 // This program is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public License
8 // as published by the Free Software Foundation; either version 2
9 // of the License, or (at your option) any later version.
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 #ifndef __GLUTIL_HPP__
20 #define __GLUTIL_HPP__
33 #include <OpenGL/gl.h>
34 #include <OpenGL/glext.h>
37 static inline void check_gl_error(const char* message)
40 GLenum error = glGetError();
41 if(error != GL_NO_ERROR) {
42 std::ostringstream msg;
43 msg << "OpenGLError while '" << message << "': ";
46 msg << "INVALID_ENUM: An unacceptable value is specified for an "
47 "enumerated argument.";
49 case GL_INVALID_VALUE:
50 msg << "INVALID_VALUE: A numeric argument is out of range.";
52 case GL_INVALID_OPERATION:
53 msg << "INVALID_OPERATION: The specified operation is not allowed "
54 "in the current state.";
56 case GL_STACK_OVERFLOW:
57 msg << "STACK_OVERFLOW: This command would cause a stack overflow.";
59 case GL_STACK_UNDERFLOW:
60 msg << "STACK_UNDERFLOW: This command would cause a stack underflow.";
62 case GL_OUT_OF_MEMORY:
63 msg << "OUT_OF_MEMORY: There is not enough memory left to execute the "
66 #ifdef GL_TABLE_TOO_LARGE
67 case GL_TABLE_TOO_LARGE:
68 msg << "TABLE_TOO_LARGE: table is too large";
72 msg << "Unknown error (code " << error << ")";
75 throw std::runtime_error(msg.str());
82 static inline void assert_gl(const char* message)
85 check_gl_error(message);
95 #define GL_SRC_ALPHA 0
96 #define GL_ONE_MINUS_SRC_ALPHA 1