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GLFBOTextureTarget.h
1 /***********************************************************************
2  created: Sun Jan 11 2009
3  author: Paul D Turner
4 *************************************************************************/
5 /***************************************************************************
6  * Copyright (C) 2004 - 2009 Paul D Turner & The CEGUI Development Team
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining
9  * a copy of this software and associated documentation files (the
10  * "Software"), to deal in the Software without restriction, including
11  * without limitation the rights to use, copy, modify, merge, publish,
12  * distribute, sublicense, and/or sell copies of the Software, and to
13  * permit persons to whom the Software is furnished to do so, subject to
14  * the following conditions:
15  *
16  * The above copyright notice and this permission notice shall be
17  * included in all copies or substantial portions of the Software.
18  *
19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25  * OTHER DEALINGS IN THE SOFTWARE.
26  ***************************************************************************/
27 #ifndef _CEGUIOpenGLFBOTextureTarget_h_
28 #define _CEGUIOpenGLFBOTextureTarget_h_
29 
30 #include "CEGUI/RendererModules/OpenGL/TextureTarget.h"
31 #include "../../Rect.h"
32 #include "CEGUI/RendererModules/OpenGL/GL.h"
33 
34 #if defined(_MSC_VER)
35 # pragma warning(push)
36 # pragma warning(disable : 4250)
37 #endif
38 
39 // Start of CEGUI namespace section
40 namespace CEGUI
41 {
42 class OpenGLTexture;
43 
45 class OPENGL_GUIRENDERER_API OpenGLFBOTextureTarget : public OpenGLTextureTarget
46 {
47 public:
49  virtual ~OpenGLFBOTextureTarget();
50 
51  // overrides from OpenGLRenderTarget
52  void activate();
53  void deactivate();
54  // implementation of TextureTarget interface
55  void clear();
56  void declareRenderSize(const Sizef& sz);
57  // specialise functions from OpenGLTextureTarget
58  void grabTexture();
59  void restoreTexture();
60 
61 protected:
63  static const float DEFAULT_SIZE;
64 
66  void initialiseRenderTexture();
68  void resizeRenderTexture();
69 
71  GLuint d_frameBuffer;
74 };
75 
76 } // End of CEGUI namespace section
77 
78 #if defined(_MSC_VER)
79 # pragma warning(pop)
80 #endif
81 
82 #endif // end of guard _CEGUIOpenGLFBOTextureTarget_h_