Crazy Eddie's GUI System  0.8.4
GLFBOTextureTarget.h
00001 /***********************************************************************
00002     created:    Sun Jan 11 2009
00003     author:     Paul D Turner
00004 *************************************************************************/
00005 /***************************************************************************
00006  *   Copyright (C) 2004 - 2009 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 _CEGUIOpenGLFBOTextureTarget_h_
00028 #define _CEGUIOpenGLFBOTextureTarget_h_
00029 
00030 #include "CEGUI/RendererModules/OpenGL/TextureTarget.h"
00031 #include "../../Rect.h"
00032 #include "CEGUI/RendererModules/OpenGL/GL.h"
00033 
00034 #if defined(_MSC_VER)
00035 #   pragma warning(push)
00036 #   pragma warning(disable : 4250)
00037 #endif
00038 
00039 // Start of CEGUI namespace section
00040 namespace CEGUI
00041 {
00042 class OpenGLTexture;
00043 
00045 class OPENGL_GUIRENDERER_API OpenGLFBOTextureTarget : public OpenGLTextureTarget
00046 {
00047 public:
00048     OpenGLFBOTextureTarget(OpenGLRendererBase& owner);
00049     virtual ~OpenGLFBOTextureTarget();
00050 
00051     // overrides from OpenGLRenderTarget
00052     void activate();
00053     void deactivate();
00054     // implementation of TextureTarget interface
00055     void clear();
00056     void declareRenderSize(const Sizef& sz);
00057     // specialise functions from OpenGLTextureTarget
00058     void grabTexture();
00059     void restoreTexture();
00060 
00061 protected:
00063     static const float DEFAULT_SIZE;
00064 
00066     void initialiseRenderTexture();
00068     void resizeRenderTexture();
00069 
00071     GLuint d_frameBuffer;
00073     GLuint d_previousFrameBuffer;
00074 };
00075 
00076 } // End of  CEGUI namespace section
00077 
00078 #if defined(_MSC_VER)
00079 #   pragma warning(pop)
00080 #endif
00081 
00082 #endif  // end of guard _CEGUIOpenGLFBOTextureTarget_h_
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