Crazy Eddie's GUI System 0.8.7
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
34namespace CEGUI
35{
36class OpenGLTexture;
37
44{
45public:
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
58
59protected:
61 static const float DEFAULT_SIZE;
62
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_
OpenGLApplePBTextureTarget - allows rendering to an OpenGL texture via the Apple pbuffer extension.
Definition: ApplePBTextureTarget.h:44
void grabTexture()
Grab the texture to a local buffer.
CGLContextObj d_context
The GL context that's used by this TextureTarget.
Definition: ApplePBTextureTarget.h:75
void activate()
Activate the render target and put it in a state ready to be drawn to.
CGLContextObj d_prevContext
Context that was active before ours was activated.
Definition: ApplePBTextureTarget.h:79
void restoreTexture()
Restore the texture from the locally buffered copy previously create by a call to grabTexture.
void declareRenderSize(const Sizef &sz)
Used to declare to the TextureTarget the largest size, in pixels, of the next set of incoming renderi...
void deactivate()
Deactivate the render target after having completed rendering.
void enablePBuffer() const
Switch rendering so it targets the pbuffer.
void clear()
Clear the surface of the underlying texture.
CGLPBufferObj d_pbuffer
The current pbuffer object used by this TextureTarget.
Definition: ApplePBTextureTarget.h:73
GLint d_screen
virtual screen used by the "parent" context
Definition: ApplePBTextureTarget.h:77
static const float DEFAULT_SIZE
default size of created texture objects
Definition: ApplePBTextureTarget.h:61
void disablePBuffer() const
Switch rendering to target what was active before the pbuffer was used.
void initialiseTexture()
Perform basic initialisation of the texture we're going to use.
Common base class used for other OpenGL (desktop or ES) based renderer modules.
Definition: RendererBase.h:54
OpenGLTextureTarget - Common base class for all OpenGL render targets based on some form of RTT suppo...
Definition: RendererModules/OpenGL/TextureTarget.h:47
Main namespace for Crazy Eddie's GUI Library.
Definition: arch_overview.dox:1