Crazy Eddies GUI System: CEGUIOpenGLApplePBTextureTarget.h Source File

Crazy Eddies GUI System 0.7.6

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CEGUIOpenGLApplePBTextureTarget.h

    00001 /***********************************************************************
    00002     filename:   CEGUIOpenGLApplePBTextureTarget.h
    00003     created:    Sun Feb 1 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 _CEGUIOpenGLApplePBTextureTarget_h_
    00029 #define _CEGUIOpenGLApplePBTextureTarget_h_
    00030
    00031 #include <OpenGL/OpenGL.h>
    00032 #include "CEGUIOpenGLTextureTarget.h"
    00033 #include "../../CEGUIRect.h"
    00034
    00035 // Start of CEGUI namespace section
    00036 namespace CEGUI
    00037 {
    00038 class OpenGLTexture;
    00039
    00045 class OpenGLApplePBTextureTarget : public OpenGLTextureTarget
    00046 {
    00047 public:
    00048     OpenGLApplePBTextureTarget(OpenGLRenderer& owner);
    00049     virtual ~OpenGLApplePBTextureTarget();
    00050
    00051     // overrides from OpenGLRenderTarget
    00052     void activate();
    00053     void deactivate();
    00054     // implementation of TextureTarget interface
    00055     void clear();
    00056     void declareRenderSize(const Size& sz);
    00057     // specialise functions from OpenGLTextureTarget
    00058     void grabTexture();
    00059     void restoreTexture();
    00060
    00061 protected:
    00063     static const float DEFAULT_SIZE;
    00064
    00066     void initialiseTexture();
    00067
    00069     void enablePBuffer() const;
    00070
    00072     void disablePBuffer() const;
    00073
    00075     CGLPBufferObj d_pbuffer;
    00077     CGLContextObj d_context;
    00079     GLint d_screen;
    00081     mutable CGLContextObj d_prevContext;
    00082 };
    00083
    00084 } // End of  CEGUI namespace section
    00085
    00086 #endif  // end of guard _CEGUIOpenGLApplePBTextureTarget_h_