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GL3FBOTextureTarget.h
1 /***********************************************************************
2  filename: CEGUIOpenGLFBOTextureTarget.h
3  created: Wed, 8th Feb 2012
4  author: Lukas E Meindl (based on code by Paul D Turner)
5 *************************************************************************/
6 /***************************************************************************
7  * Copyright (C) 2004 - 2012 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 _CEGUIOpenGL3FBOTextureTarget_h_
29 #define _CEGUIOpenGL3FBOTextureTarget_h_
30 
31 #include "CEGUI/RendererModules/OpenGL/TextureTarget.h"
32 #include "CEGUI/RendererModules/OpenGL/GL.h"
33 #include "../../Rect.h"
34 
35 
36 #if defined(_MSC_VER)
37 # pragma warning(push)
38 # pragma warning(disable : 4250)
39 #endif
40 
41 // Start of CEGUI namespace section
42 namespace CEGUI
43 {
44 class OpenGL3Texture;
45 class OpenGL3Renderer;
46 
48 class OPENGL_GUIRENDERER_API OpenGL3FBOTextureTarget : public OpenGLTextureTarget
49 {
50 public:
52  virtual ~OpenGL3FBOTextureTarget();
53 
54  // overrides from OpenGL3RenderTarget
55  void activate();
56  void deactivate();
57  // implementation of TextureTarget interface
58  void clear();
59  void declareRenderSize(const Sizef& sz);
60  // specialise functions from OpenGL3TextureTarget
61  void grabTexture();
62  void restoreTexture();
63 
64 protected:
66  static const float DEFAULT_SIZE;
67 
69  void initialiseRenderTexture();
71  void resizeRenderTexture();
73  void checkFramebufferStatus();
74 
76  GLuint d_frameBuffer;
79 };
80 
81 } // End of CEGUI namespace section
82 
83 #if defined(_MSC_VER)
84 # pragma warning(pop)
85 #endif
86 
87 #endif // end of guard _CEGUIOpenGLFBOTextureTarget_h_