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context.h

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00001 /* ResidualVM - A 3D game interpreter
00002  *
00003  * ResidualVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef GRAPHICS_OPENGL_CONTEXT_H
00024 #define GRAPHICS_OPENGL_CONTEXT_H
00025 
00026 #include "common/singleton.h"
00027 
00028 namespace OpenGL {
00029 
00030 enum ContextType {
00031     kContextGL,
00032     kContextGLES2
00033 };
00034 
00040 class Context : public Common::Singleton<Context> {
00041 public:
00042     Context();
00043 
00050     void initialize(ContextType contextType);
00051 
00057     void reset();
00058 
00060     ContextType type;
00061 
00063     int maxTextureSize;
00064 
00066     bool NPOTSupported;
00067 
00069     bool shadersSupported;
00070 
00072     bool framebufferObjectSupported;
00073 
00075     bool framebufferObjectMultisampleSupported;
00076 
00081     int multisampleMaxSamples;
00082 
00084     bool packedDepthStencilSupported;
00085 
00087     bool unpackSubImageSupported;
00088     
00090     bool OESDepth24;
00091 
00092     int getGLSLVersion() const;
00093 };
00094 
00095 } // End of namespace OpenGL
00096 
00098 #define OpenGLContext OpenGL::Context::instance()
00099 
00100 #endif


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