2 // Copyright (C) 2006 Matthias Braun <matze@braunis.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 3 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, see <http://www.gnu.org/licenses/>.
17 #ifndef HEADER_SUPERTUX_VIDEO_GLUTIL_HPP
18 #define HEADER_SUPERTUX_VIDEO_GLUTIL_HPP
27 #ifndef GL_VERSION_ES_CM_1_0
32 # include <OpenGL/gl.h>
33 # include <OpenGL/glext.h>
34 #elif defined(GL_VERSION_ES_CM_1_0)
36 # include <GLES/glext.h>
39 # include <GL/glext.h>
42 static inline void check_gl_error(const char* message)
45 GLenum error = glGetError();
46 if(error != GL_NO_ERROR) {
47 std::ostringstream msg;
48 msg << "OpenGLError while '" << message << "': ";
51 msg << "INVALID_ENUM: An unacceptable value is specified for an "
52 "enumerated argument.";
54 case GL_INVALID_VALUE:
55 msg << "INVALID_VALUE: A numeric argument is out of range.";
57 case GL_INVALID_OPERATION:
58 msg << "INVALID_OPERATION: The specified operation is not allowed "
59 "in the current state.";
61 case GL_STACK_OVERFLOW:
62 msg << "STACK_OVERFLOW: This command would cause a stack overflow.";
64 case GL_STACK_UNDERFLOW:
65 msg << "STACK_UNDERFLOW: This command would cause a stack underflow.";
67 case GL_OUT_OF_MEMORY:
68 msg << "OUT_OF_MEMORY: There is not enough memory left to execute the "
71 #ifdef GL_TABLE_TOO_LARGE
72 case GL_TABLE_TOO_LARGE:
73 msg << "TABLE_TOO_LARGE: table is too large";
77 msg << "Unknown error (code " << error << ")";
80 throw std::runtime_error(msg.str());
87 static inline void assert_gl(const char* message)
90 check_gl_error(message);
100 #define GL_SRC_ALPHA 0
101 #define GL_ONE_MINUS_SRC_ALPHA 1