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FBOTextureTarget.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 _CEGUIOpenGLESFBOTextureTarget_h_
28 #define _CEGUIOpenGLESFBOTextureTarget_h_
29 
30 #include "CEGUI/RendererModules/OpenGLES/RenderTarget.h"
31 #include "CEGUI/TextureTarget.h"
32 #include "CEGUI/Rect.h"
33 #include "CEGUI/RendererModules/OpenGLES/GLES.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 OpenGLESTexture;
44 
46 class OPENGLES_GUIRENDERER_API OpenGLESFBOTextureTarget :
47  public OpenGLESRenderTarget<TextureTarget>
48 {
49 public:
50  OpenGLESFBOTextureTarget(OpenGLESRenderer& owner);
51  virtual ~OpenGLESFBOTextureTarget();
52 
53  // overrides from OpenGLESRenderTarget
54  void activate();
55  void deactivate();
56  // implementation of RenderTarget interface
57  bool isImageryCache() const;
58  // implementation of TextureTarget interface
59  void clear();
60  Texture& getTexture() const;
61  void declareRenderSize(const Sizef& sz);
62  bool isRenderingInverted() const;
63 
65  static void initializedFBOExtension();
66 
67 protected:
69  static const float DEFAULT_SIZE;
70 
72  void initialiseRenderTexture();
74  void resizeRenderTexture();
76  String generateTextureName();
77 
79  GLint d_oldFbo;
81  GLuint d_frameBuffer;
83  GLuint d_texture;
85  OpenGLESTexture* d_CEGUITexture;
87  static uint s_textureNumber;
88 };
89 
90 } // End of CEGUI namespace section
91 
92 #if defined(_MSC_VER)
93 # pragma warning(pop)
94 #endif
95 
96 #endif // end of guard _CEGUIOpenGLESFBOTextureTarget_h_