Crazy Eddie's GUI System  0.8.4
GLXPBTextureTarget.h
00001 /***********************************************************************
00002     created:    Sat Jan 31 2009
00003     author:     Paul D Turner
00004 *************************************************************************/
00005 /***************************************************************************
00006  *   Copyright (C) 2004 - 2011 Paul D Turner & The CEGUI Development Team
00007  *
00008  *   Permission is hereby granted, free of charge, to any person obtaining
00009  *   a copy of this software and associated documentation files (the
00010  *   "Software"), to deal in the Software without restriction, including
00011  *   without limitation the rights to use, copy, modify, merge, publish,
00012  *   distribute, sublicense, and/or sell copies of the Software, and to
00013  *   permit persons to whom the Software is furnished to do so, subject to
00014  *   the following conditions:
00015  *
00016  *   The above copyright notice and this permission notice shall be
00017  *   included in all copies or substantial portions of the Software.
00018  *
00019  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00020  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00021  *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00022  *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
00023  *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
00024  *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
00025  *   OTHER DEALINGS IN THE SOFTWARE.
00026  ***************************************************************************/
00027 #ifndef _CEGUIOpenGLGLXPBTextureTarget_h_
00028 #define _CEGUIOpenGLGLXPBTextureTarget_h_
00029 
00030 #include <GL/glxew.h>
00031 
00032 #include "CEGUI/RendererModules/OpenGL/TextureTarget.h"
00033 
00034 // Start of CEGUI namespace section
00035 namespace CEGUI
00036 {
00037 class OpenGLTexture;
00038 
00044 class OPENGL_GUIRENDERER_API OpenGLGLXPBTextureTarget : public OpenGLTextureTarget
00045 {
00046 public:
00047     OpenGLGLXPBTextureTarget(OpenGLRendererBase& owner);
00048     virtual ~OpenGLGLXPBTextureTarget();
00049 
00050     // overrides from OpenGLRenderTarget
00051     void activate();
00052     void deactivate();
00053     // implementation of TextureTarget interface
00054     void clear();
00055     void declareRenderSize(const Sizef& sz);
00056     // specialise functions from OpenGLTextureTarget
00057     void grabTexture();
00058     void restoreTexture();
00059 
00060 protected:
00062     static const float DEFAULT_SIZE;
00063 
00065     void initialisePBuffer();
00066 
00068     void enablePBuffer() const;
00069 
00071     void disablePBuffer() const;
00072 
00074     void initialiseTexture();
00075 
00077     void selectFBConfig();
00078 
00080     void createContext();
00081 
00083     Display* d_dpy;
00085     GLXFBConfig d_fbconfig;
00087     GLXContext d_context;
00089     GLXPbuffer d_pbuffer;
00091     mutable Display* d_prevDisplay;
00093     mutable GLXDrawable d_prevDrawable;
00095     mutable GLXContext d_prevContext;
00096 };
00097 
00098 } // End of  CEGUI namespace section
00099 
00100 #endif  // end of guard _CEGUIOpenGLGLXPBTextureTarget_h_
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