Crazy Eddie's GUI System  0.8.7
GL3FBOTextureTarget.h
1 /***********************************************************************
2  created: Wed, 8th Feb 2012
3  author: Lukas E Meindl (based on code by Paul D Turner)
4 *************************************************************************/
5 /***************************************************************************
6  * Copyright (C) 2004 - 2012 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 _CEGUIOpenGL3FBOTextureTarget_h_
28 #define _CEGUIOpenGL3FBOTextureTarget_h_
29 
30 #include "CEGUI/RendererModules/OpenGL/TextureTarget.h"
31 #include "CEGUI/RendererModules/OpenGL/GL.h"
32 #include "../../Rect.h"
33 
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 OpenGL3Texture;
44 class OpenGL3Renderer;
45 
47 class OPENGL_GUIRENDERER_API OpenGL3FBOTextureTarget : public OpenGLTextureTarget
48 {
49 public:
51  virtual ~OpenGL3FBOTextureTarget();
52 
53  // overrides from OpenGL3RenderTarget
54  void activate();
55  void deactivate();
56  // implementation of TextureTarget interface
57  void clear();
58  void declareRenderSize(const Sizef& sz);
59  // specialise functions from OpenGL3TextureTarget
60  void grabTexture();
62 
63 protected:
65  static const float DEFAULT_SIZE;
66 
73 
75  GLuint d_frameBuffer;
78 };
79 
80 } // End of CEGUI namespace section
81 
82 #if defined(_MSC_VER)
83 # pragma warning(pop)
84 #endif
85 
86 #endif // end of guard _CEGUIOpenGLFBOTextureTarget_h_
CEGUI::OpenGL3FBOTextureTarget::restoreTexture
void restoreTexture()
Restore the texture from the locally buffered copy previously create by a call to grabTexture.
CEGUI::OpenGL3FBOTextureTarget::d_frameBuffer
GLuint d_frameBuffer
Frame buffer object.
Definition: GL3FBOTextureTarget.h:75
CEGUI::OpenGL3FBOTextureTarget::deactivate
void deactivate()
Deactivate the render target after having completed rendering.
CEGUI::OpenGL3FBOTextureTarget::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::OpenGL3FBOTextureTarget::clear
void clear()
Clear the surface of the underlying texture.
CEGUI::OpenGL3FBOTextureTarget::checkFramebufferStatus
void checkFramebufferStatus()
Checks for OpenGL framebuffer completeness.
CEGUI::OpenGL3Renderer
Renderer class to interface with desktop OpenGL version >= 3.2 or OpenGL ES version >= 2.
Definition: GL3Renderer.h:55
CEGUI::OpenGL3FBOTextureTarget
~OpenGL3FBOTextureTarget - allows rendering to an OpenGL texture via FBO.
Definition: GL3FBOTextureTarget.h:48
CEGUI
Main namespace for Crazy Eddie's GUI Library.
Definition: arch_overview.dox:1
CEGUI::OpenGL3FBOTextureTarget::DEFAULT_SIZE
static const float DEFAULT_SIZE
default size of created texture objects
Definition: GL3FBOTextureTarget.h:65
CEGUI::OpenGL3FBOTextureTarget::initialiseRenderTexture
void initialiseRenderTexture()
allocate and set up the texture used with the FBO.
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::OpenGL3FBOTextureTarget::d_previousFrameBuffer
GLuint d_previousFrameBuffer
Frame buffer object that was bound before we bound this one.
Definition: GL3FBOTextureTarget.h:77
CEGUI::OpenGL3FBOTextureTarget::grabTexture
void grabTexture()
Grab the texture to a local buffer.
CEGUI::Size< float >
CEGUI::OpenGL3FBOTextureTarget::resizeRenderTexture
void resizeRenderTexture()
resize the texture
CEGUI::OpenGL3FBOTextureTarget::activate
void activate()
Activate the render target and put it in a state ready to be drawn to.