Crazy Eddies GUI System 0.7.5

CEGUIOpenGLGLXPBTextureTarget.h

00001 /***********************************************************************
00002     filename:   CEGUIOpenGLGLXPBTextureTarget.h
00003     created:    Sat Jan 31 2009
00004     author:     Paul D Turner
00005 *************************************************************************/
00006 /***************************************************************************
00007  *   Copyright (C) 2004 - 2009 Paul D Turner & The CEGUI Development Team
00008  *
00009  *   Permission is hereby granted, free of charge, to any person obtaining
00010  *   a copy of this software and associated documentation files (the
00011  *   "Software"), to deal in the Software without restriction, including
00012  *   without limitation the rights to use, copy, modify, merge, publish,
00013  *   distribute, sublicense, and/or sell copies of the Software, and to
00014  *   permit persons to whom the Software is furnished to do so, subject to
00015  *   the following conditions:
00016  *
00017  *   The above copyright notice and this permission notice shall be
00018  *   included in all copies or substantial portions of the Software.
00019  *
00020  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00021  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00022  *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00023  *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
00024  *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
00025  *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
00026  *   OTHER DEALINGS IN THE SOFTWARE.
00027  ***************************************************************************/
00028 #ifndef _CEGUIOpenGLGLXPBTextureTarget_h_
00029 #define _CEGUIOpenGLGLXPBTextureTarget_h_
00030 
00031 #include <GL/glxew.h>
00032 
00033 #include "CEGUIOpenGLTextureTarget.h"
00034 #include "../../CEGUIRect.h"
00035 
00036 // Start of CEGUI namespace section
00037 namespace CEGUI
00038 {
00039 class OpenGLTexture;
00040 
00046 class OPENGL_GUIRENDERER_API OpenGLGLXPBTextureTarget : public OpenGLTextureTarget
00047 {
00048 public:
00049     OpenGLGLXPBTextureTarget(OpenGLRenderer& owner);
00050     virtual ~OpenGLGLXPBTextureTarget();
00051 
00052     // overrides from OpenGLRenderTarget
00053     void activate();
00054     void deactivate();
00055     // implementation of TextureTarget interface
00056     void clear();
00057     void declareRenderSize(const Size& sz);
00058     // specialise functions from OpenGLTextureTarget
00059     void grabTexture();
00060     void restoreTexture();
00061 
00062 protected:
00064     static const float DEFAULT_SIZE;
00065 
00067     void initialisePBuffer();
00068 
00070     void enablePBuffer() const;
00071 
00073     void disablePBuffer() const;
00074 
00076     void initialiseTexture();
00077 
00079     void selectFBConfig();
00080 
00082     void createContext();
00083 
00085     Display* d_dpy;
00087     GLXFBConfig d_fbconfig;
00089     GLXContext d_context;
00091     GLXPbuffer d_pbuffer;
00093     mutable Display* d_prevDisplay;
00095     mutable GLXDrawable d_prevDrawable;
00097     mutable GLXContext d_prevContext;
00098 };
00099 
00100 } // End of  CEGUI namespace section
00101 
00102 #endif  // end of guard _CEGUIOpenGLGLXPBTextureTarget_h_