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debian/tmp/usr/include/cegui-0.8.7/CEGUI/RendererModules/OpenGL/ApplePBTextureTarget.h
1 /***********************************************************************
2  created: Sun Feb 1 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 _CEGUIOpenGLApplePBTextureTarget_h_
28 #define _CEGUIOpenGLApplePBTextureTarget_h_
29 
30 #include <OpenGL/OpenGL.h>
31 #include "CEGUI/RendererModules/OpenGL/TextureTarget.h"
32 
33 // Start of CEGUI namespace section
34 namespace CEGUI
35 {
36 class OpenGLTexture;
37 
43 class OpenGLApplePBTextureTarget : public OpenGLTextureTarget
44 {
45 public:
46  OpenGLApplePBTextureTarget(OpenGLRendererBase& owner);
47  virtual ~OpenGLApplePBTextureTarget();
48 
49  // overrides from OpenGLRenderTarget
50  void activate();
51  void deactivate();
52  // implementation of TextureTarget interface
53  void clear();
54  void declareRenderSize(const Sizef& sz);
55  // specialise functions from OpenGLTextureTarget
56  void grabTexture();
57  void restoreTexture();
58 
59 protected:
61  static const float DEFAULT_SIZE;
62 
64  void initialiseTexture();
65 
67  void enablePBuffer() const;
68 
70  void disablePBuffer() const;
71 
73  CGLPBufferObj d_pbuffer;
75  CGLContextObj d_context;
77  GLint d_screen;
79  mutable CGLContextObj d_prevContext;
80 };
81 
82 } // End of CEGUI namespace section
83 
84 #endif // end of guard _CEGUIOpenGLApplePBTextureTarget_h_
void enablePBuffer() const
Switch rendering so it targets the pbuffer.
Definition: ApplePBTextureTarget.cpp:225
void grabTexture()
Grab the texture to a local buffer.
Definition: ApplePBTextureTarget.cpp:242
Main namespace for Crazy Eddie's GUI Library.
Definition: cegui/include/CEGUI/Affector.h:42
void deactivate()
Deactivate the render target after having completed rendering.
Definition: ApplePBTextureTarget.cpp:135
void initialiseTexture()
Perform basic initialisation of the texture we're going to use.
Definition: ApplePBTextureTarget.cpp:208
void disablePBuffer() const
Switch rendering to target what was active before the pbuffer was used.
Definition: ApplePBTextureTarget.cpp:235
void restoreTexture()
Restore the texture from the locally buffered copy previously create by a call to grabTexture...
Definition: ApplePBTextureTarget.cpp:254
CGLPBufferObj d_pbuffer
The current pbuffer object used by this TextureTarget.
Definition: cegui/include/CEGUI/RendererModules/OpenGL/ApplePBTextureTarget.h:73
static const float DEFAULT_SIZE
default size of created texture objects
Definition: cegui/include/CEGUI/RendererModules/OpenGL/ApplePBTextureTarget.h:61
void clear()
Clear the surface of the underlying texture.
Definition: ApplePBTextureTarget.cpp:148
CGLContextObj d_context
The GL context that's used by this TextureTarget.
Definition: cegui/include/CEGUI/RendererModules/OpenGL/ApplePBTextureTarget.h:75
void declareRenderSize(const Sizef &sz)
Used to declare to the TextureTarget the largest size, in pixels, of the next set of incoming renderi...
Definition: ApplePBTextureTarget.cpp:158
CGLContextObj d_prevContext
Context that was active before ours was activated.
Definition: cegui/include/CEGUI/RendererModules/OpenGL/ApplePBTextureTarget.h:79
GLint d_screen
virtual screen used by the "parent" context
Definition: cegui/include/CEGUI/RendererModules/OpenGL/ApplePBTextureTarget.h:77
void activate()
Activate the render target and put it in a state ready to be drawn to.
Definition: ApplePBTextureTarget.cpp:123