FIFE  2008.0
fife_opengl.h
00001 /***************************************************************************
00002  *   Copyright (C) 2005-2008 by the FIFE team                              *
00003  *   http://www.fifengine.de                                               *
00004  *   This file is part of FIFE.                                            *
00005  *                                                                         *
00006  *   FIFE is free software; you can redistribute it and/or                 *
00007  *   modify it under the terms of the GNU Lesser General Public            *
00008  *   License as published by the Free Software Foundation; either          *
00009  *   version 2.1 of the License, or (at your option) any later version.    *
00010  *                                                                         *
00011  *   This library is distributed in the hope that it will be useful,       *
00012  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00013  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00014  *   Lesser General Public License for more details.                       *
00015  *                                                                         *
00016  *   You should have received a copy of the GNU Lesser General Public      *
00017  *   License along with this library; if not, write to the                 *
00018  *   Free Software Foundation, Inc.,                                       *
00019  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
00020  ***************************************************************************/
00021 
00022 #ifndef FIFE_UTIL_FIFEGL_H
00023 #define FIFE_UTIL_FIFEGL_H
00024 
00025 // Standard C++ library includes
00026 
00027 // Platform specific includes
00028 // Linux
00029 #if defined( __unix__ )
00030 #include <GL/gl.h>
00031 #include <GL/glu.h>
00032 #endif
00033 
00034 // Win32
00035 #if defined( WIN32 )
00036 // MSVC
00037 #if defined( _MSC_VER )
00038 #include <windows.h>
00039 #include <GL/gl.h>
00040 #include <GL/glu.h>
00041 #undef DELETE
00042 // MinGW
00043 #else
00044 #include <GL/gl.h>
00045 #include <GL/glu.h>
00046 #endif
00047 #endif
00048 
00049 // Macintosh
00050 #if defined( __APPLE_CC__ )
00051 #include <OpenGL/gl.h>
00052 #include <OpenGL/glu.h>
00053 #include <OpenGL/glext.h>
00054 #endif
00055 
00056 // 3rd party library includes
00057 
00058 // FIFE includes
00059 // These includes are split up in two parts, separated by one empty line
00060 // First block: files included from the FIFE root src directory
00061 // Second block: files included from the same folder
00062 
00063 namespace FIFE {
00064 
00065     struct GLEnable {
00066         GLenum m_flag;
00067         GLboolean m_oldval;
00068         GLEnable(GLenum flag) : m_flag(flag) {
00069             glGetBooleanv(flag, &m_oldval);
00070             if (!m_oldval) {
00071                 glEnable(flag);
00072             }
00073         }
00074         ~GLEnable() {
00075             if (!m_oldval) {
00076                 glDisable(m_flag);
00077             }
00078         }
00079     };
00080 
00081     struct GLDisable {
00082         GLenum m_flag;
00083         GLboolean m_oldval;
00084         GLDisable(GLenum flag) : m_flag(flag) {
00085             glGetBooleanv(flag, &m_oldval);
00086             if (m_oldval) {
00087                 glDisable(flag);
00088             }
00089         }
00090         ~GLDisable() {
00091             if (m_oldval) {
00092                 glEnable(m_flag);
00093             }
00094         }
00095     };
00096 
00097 
00098 } //FIFE
00099 
00100 #endif