Crazy Eddie's GUI System  0.8.7
GLXPBTextureTarget.h
1 /***********************************************************************
2  created: Sat Jan 31 2009
3  author: Paul D Turner
4 *************************************************************************/
5 /***************************************************************************
6  * Copyright (C) 2004 - 2011 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 _CEGUIOpenGLGLXPBTextureTarget_h_
28 #define _CEGUIOpenGLGLXPBTextureTarget_h_
29 
30 #include <GL/glxew.h>
31 
32 #include "CEGUI/RendererModules/OpenGL/TextureTarget.h"
33 
34 // Start of CEGUI namespace section
35 namespace CEGUI
36 {
37 class OpenGLTexture;
38 
44 class OPENGL_GUIRENDERER_API OpenGLGLXPBTextureTarget : public OpenGLTextureTarget
45 {
46 public:
48  virtual ~OpenGLGLXPBTextureTarget();
49 
50  // overrides from OpenGLRenderTarget
51  void activate();
52  void deactivate();
53  // implementation of TextureTarget interface
54  void clear();
55  void declareRenderSize(const Sizef& sz);
56  // specialise functions from OpenGLTextureTarget
57  void grabTexture();
59 
60 protected:
62  static const float DEFAULT_SIZE;
63 
66 
68  void enablePBuffer() const;
69 
71  void disablePBuffer() const;
72 
75 
78 
80  void createContext();
81 
83  Display* d_dpy;
85  GLXFBConfig d_fbconfig;
87  GLXContext d_context;
89  GLXPbuffer d_pbuffer;
91  mutable Display* d_prevDisplay;
93  mutable GLXDrawable d_prevDrawable;
95  mutable GLXContext d_prevContext;
96 };
97 
98 } // End of CEGUI namespace section
99 
100 #endif // end of guard _CEGUIOpenGLGLXPBTextureTarget_h_
CEGUI::OpenGLGLXPBTextureTarget::d_dpy
Display * d_dpy
X server display.
Definition: GLXPBTextureTarget.h:83
CEGUI::OpenGLGLXPBTextureTarget::initialisePBuffer
void initialisePBuffer()
Initialise the PBuffer with the needed size.
CEGUI::OpenGLGLXPBTextureTarget::selectFBConfig
void selectFBConfig()
Selects an appropriate FB config to use and stores in d_fbconfig.
CEGUI::OpenGLGLXPBTextureTarget::deactivate
void deactivate()
Deactivate the render target after having completed rendering.
CEGUI::OpenGLGLXPBTextureTarget
OpenGLGLXPBTextureTarget - allows rendering to an OpenGL texture via the pbuffer provided in GLX 1....
Definition: GLXPBTextureTarget.h:45
CEGUI::OpenGLGLXPBTextureTarget::d_fbconfig
GLXFBConfig d_fbconfig
GLX config used in creating pbuffer.
Definition: GLXPBTextureTarget.h:85
CEGUI
Main namespace for Crazy Eddie's GUI Library.
Definition: arch_overview.dox:1
CEGUI::OpenGLGLXPBTextureTarget::initialiseTexture
void initialiseTexture()
Perform basic initialisation of the texture we're going to use.
CEGUI::OpenGLGLXPBTextureTarget::DEFAULT_SIZE
static const float DEFAULT_SIZE
default size of created texture objects
Definition: GLXPBTextureTarget.h:62
CEGUI::OpenGLGLXPBTextureTarget::d_context
GLXContext d_context
GLX context.
Definition: GLXPBTextureTarget.h:87
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::OpenGLGLXPBTextureTarget::restoreTexture
void restoreTexture()
Restore the texture from the locally buffered copy previously create by a call to grabTexture.
CEGUI::OpenGLGLXPBTextureTarget::d_prevDrawable
GLXDrawable d_prevDrawable
stores previous GLX drawable when switching to pbuffer
Definition: GLXPBTextureTarget.h:93
CEGUI::OpenGLGLXPBTextureTarget::enablePBuffer
void enablePBuffer() const
Switch rendering so it targets the pbuffer.
CEGUI::OpenGLGLXPBTextureTarget::grabTexture
void grabTexture()
Grab the texture to a local buffer.
CEGUI::OpenGLGLXPBTextureTarget::d_prevContext
GLXContext d_prevContext
stores previous GLX context when switching to pbuffer
Definition: GLXPBTextureTarget.h:95
CEGUI::OpenGLGLXPBTextureTarget::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::OpenGLGLXPBTextureTarget::d_pbuffer
GLXPbuffer d_pbuffer
The GLX pbuffer we're using.
Definition: GLXPBTextureTarget.h:89
CEGUI::OpenGLGLXPBTextureTarget::activate
void activate()
Activate the render target and put it in a state ready to be drawn to.
CEGUI::OpenGLGLXPBTextureTarget::d_prevDisplay
Display * d_prevDisplay
stores previous X display when switching to pbuffer
Definition: GLXPBTextureTarget.h:91
CEGUI::OpenGLGLXPBTextureTarget::clear
void clear()
Clear the surface of the underlying texture.
CEGUI::Size< float >
CEGUI::OpenGLGLXPBTextureTarget::disablePBuffer
void disablePBuffer() const
Switch rendering to target what was active before the pbuffer was used.
CEGUI::OpenGLGLXPBTextureTarget::createContext
void createContext()
Creates the context to use with the pbuffer.
CEGUI::OpenGLRendererBase
Common base class used for other OpenGL (desktop or ES) based renderer modules.
Definition: RendererBase.h:54