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CEGUIOpenGLFBOTextureTarget.h
1 /***********************************************************************
2  filename: CEGUIOpenGLFBOTextureTarget.h
3  created: Sun Jan 11 2009
4  author: Paul D Turner
5 *************************************************************************/
6 /***************************************************************************
7  * Copyright (C) 2004 - 2009 Paul D Turner & The CEGUI Development Team
8  *
9  * Permission is hereby granted, free of charge, to any person obtaining
10  * a copy of this software and associated documentation files (the
11  * "Software"), to deal in the Software without restriction, including
12  * without limitation the rights to use, copy, modify, merge, publish,
13  * distribute, sublicense, and/or sell copies of the Software, and to
14  * permit persons to whom the Software is furnished to do so, subject to
15  * the following conditions:
16  *
17  * The above copyright notice and this permission notice shall be
18  * included in all copies or substantial portions of the Software.
19  *
20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26  * OTHER DEALINGS IN THE SOFTWARE.
27  ***************************************************************************/
28 #ifndef _CEGUIOpenGLFBOTextureTarget_h_
29 #define _CEGUIOpenGLFBOTextureTarget_h_
30 
31 #include "CEGUIOpenGLTextureTarget.h"
32 #include "../../CEGUIRect.h"
33 #include "CEGUIOpenGL.h"
34 
35 #if defined(_MSC_VER)
36 # pragma warning(push)
37 # pragma warning(disable : 4250)
38 #endif
39 
40 // Start of CEGUI namespace section
41 namespace CEGUI
42 {
43 class OpenGLTexture;
44 
46 class OPENGL_GUIRENDERER_API OpenGLFBOTextureTarget : public OpenGLTextureTarget
47 {
48 public:
50  virtual ~OpenGLFBOTextureTarget();
51 
52  // overrides from OpenGLRenderTarget
53  void activate();
54  void deactivate();
55  // implementation of TextureTarget interface
56  void clear();
57  void declareRenderSize(const Size& sz);
58  // specialise functions from OpenGLTextureTarget
59  void grabTexture();
60  void restoreTexture();
61 
62 protected:
64  static const float DEFAULT_SIZE;
65 
67  void initialiseRenderTexture();
69  void resizeRenderTexture();
70 
72  GLuint d_frameBuffer;
73 };
74 
75 } // End of CEGUI namespace section
76 
77 #if defined(_MSC_VER)
78 # pragma warning(pop)
79 #endif
80 
81 #endif // end of guard _CEGUIOpenGLFBOTextureTarget_h_