OpenGLCaps.cpp

00001 
00002 //
00003 // SFML - Simple and Fast Multimedia Library
00004 // Copyright (C) 2007 Laurent Gomila (laurent.gom@gmail.com)
00005 //
00006 // This software is provided 'as-is', without any express or implied warranty.
00007 // In no event will the authors be held liable for any damages arising from the use of this software.
00008 //
00009 // Permission is granted to anyone to use this software for any purpose,
00010 // including commercial applications, and to alter it and redistribute it freely,
00011 // subject to the following restrictions:
00012 //
00013 // 1. The origin of this software must not be misrepresented;
00014 //    you must not claim that you wrote the original software.
00015 //    If you use this software in a product, an acknowledgment
00016 //    in the product documentation would be appreciated but is not required.
00017 //
00018 // 2. Altered source versions must be plainly marked as such,
00019 //    and must not be misrepresented as being the original software.
00020 //
00021 // 3. This notice may not be removed or altered from any source distribution.
00022 //
00024 
00026 // Headers
00028 #include <SFML/Window/OpenGLCaps.hpp>
00029 #include <SFML/Window/glew/glew.h>
00030 
00031 
00032 namespace sf
00033 {
00037 bool OpenGLCaps::CheckExtension(const std::string& Name)
00038 {
00039     return glewIsSupported(Name.c_str()) != 0;
00040 }
00041 
00042 
00046 int OpenGLCaps::GetMaxTextureSize()
00047 {
00048     GLint Capability;
00049     glGetIntegerv(GL_MAX_TEXTURE_SIZE, &Capability);
00050 
00051     return static_cast<int>(Capability);
00052 }
00053 
00054 
00058 int OpenGLCaps::GetMaxTextureUnits()
00059 {
00060     GLint Capability;
00061     glGetIntegerv(GL_MAX_TEXTURE_COORDS_ARB, &Capability);
00062 
00063     return static_cast<int>(Capability);
00064 }
00065 
00066 
00070 void OpenGLCaps::Initialize()
00071 {
00072     // Initialize GLEW
00073     glewInit();
00074 }
00075 
00076 } // namespace sf