Crazy Eddie's GUI System  0.8.7
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();
60 
61 protected:
63  static const float DEFAULT_SIZE;
64 
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_
CEGUI::OpenGLFBOTextureTarget::declareRenderSize
void declareRenderSize(const Sizef &sz)
Used to declare to the TextureTarget the largest size, in pixels, of the next set of incoming renderi...
CEGUI::OpenGLFBOTextureTarget::clear
void clear()
Clear the surface of the underlying texture.
CEGUI::OpenGLFBOTextureTarget::d_previousFrameBuffer
GLuint d_previousFrameBuffer
Frame buffer object that was bound before we bound this one.
Definition: GLFBOTextureTarget.h:73
CEGUI::OpenGLFBOTextureTarget
OpenGLFBOTextureTarget - allows rendering to an OpenGL texture via FBO.
Definition: GLFBOTextureTarget.h:46
CEGUI
Main namespace for Crazy Eddie's GUI Library.
Definition: arch_overview.dox:1
CEGUI::OpenGLFBOTextureTarget::d_frameBuffer
GLuint d_frameBuffer
Frame buffer object.
Definition: GLFBOTextureTarget.h:71
CEGUI::OpenGLFBOTextureTarget::deactivate
void deactivate()
Deactivate the render target after having completed rendering.
CEGUI::OpenGLTextureTarget
OpenGLTextureTarget - Common base class for all OpenGL render targets based on some form of RTT suppo...
Definition: RendererModules/OpenGL/TextureTarget.h:47
CEGUI::OpenGLFBOTextureTarget::resizeRenderTexture
void resizeRenderTexture()
resize the texture
CEGUI::OpenGLFBOTextureTarget::DEFAULT_SIZE
static const float DEFAULT_SIZE
default size of created texture objects
Definition: GLFBOTextureTarget.h:63
CEGUI::OpenGLFBOTextureTarget::initialiseRenderTexture
void initialiseRenderTexture()
allocate and set up the texture used with the FBO.
CEGUI::OpenGLFBOTextureTarget::activate
void activate()
Activate the render target and put it in a state ready to be drawn to.
CEGUI::OpenGLFBOTextureTarget::restoreTexture
void restoreTexture()
Restore the texture from the locally buffered copy previously create by a call to grabTexture.
CEGUI::Size< float >
CEGUI::OpenGLFBOTextureTarget::grabTexture
void grabTexture()
Grab the texture to a local buffer.
CEGUI::OpenGLRendererBase
Common base class used for other OpenGL (desktop or ES) based renderer modules.
Definition: RendererBase.h:54