Crazy Eddie's GUI System 0.8.7
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WGLPBTextureTarget.h
1/***********************************************************************
2 created: Sun Feb 1 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 _CEGUIOpenGLWGLPBTextureTarget_h_
28#define _CEGUIOpenGLWGLPBTextureTarget_h_
29
30//#include <windows.h>
31#include "CEGUI/RendererModules/OpenGL/GL.h"
32#include <GL/wglew.h>
33
34#include "CEGUI/RendererModules/OpenGL/TextureTarget.h"
35#include "../../Rect.h"
36
37#if defined(_MSC_VER)
38# pragma warning(push)
39# pragma warning(disable : 4250)
40#endif
41
42// Start of CEGUI namespace section
43namespace CEGUI
44{
45class OpenGLTexture;
46
52class OPENGL_GUIRENDERER_API OpenGLWGLPBTextureTarget : public OpenGLTextureTarget
53{
54public:
57
58 // overrides from OpenGLRenderTarget
59 void activate();
60 void deactivate();
61 // implementation of TextureTarget interface
62 void clear();
63 void declareRenderSize(const Sizef& sz);
64 // specialise functions from OpenGLTextureTarget
67
68protected:
70 static const float DEFAULT_SIZE;
71
74
77
79 void enablePBuffer() const;
80
82 void disablePBuffer() const;
83
86
90 HPBUFFERARB d_pbuffer;
92 HGLRC d_context;
94 HDC d_hdc;
96 mutable HGLRC d_prevContext;
98 mutable HDC d_prevDC;
99};
100
101} // End of CEGUI namespace section
102
103#if defined(_MSC_VER)
104# pragma warning(pop)
105#endif
106
107#endif // end of guard _CEGUIOpenGLWGLPBTextureTarget_h_
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
OpenGLWGLPBTextureTarget - allows rendering to an OpenGL texture via the pbuffer WGL extension.
Definition WGLPBTextureTarget.h:53
HGLRC d_prevContext
Handle to the rendering context in use when we switched to the pbuffer.
Definition WGLPBTextureTarget.h:96
void declareRenderSize(const Sizef &sz)
Used to declare to the TextureTarget the largest size, in pixels, of the next set of incoming renderi...
void restoreTexture()
Restore the texture from the locally buffered copy previously create by a call to grabTexture.
void deactivate()
Deactivate the render target after having completed rendering.
static const float DEFAULT_SIZE
default size of created texture objects
Definition WGLPBTextureTarget.h:70
void clear()
Clear the surface of the underlying texture.
HGLRC d_context
Handle to the rendering context for the pbuffer.
Definition WGLPBTextureTarget.h:92
void releasePBuffer()
Cleans up the pbuffer resources.
int d_pixfmt
Holds the pixel format we use when creating the pbuffer.
Definition WGLPBTextureTarget.h:88
void initialiseTexture()
Perform basic initialisation of the texture we're going to use.
void disablePBuffer() const
Switch rendering to target what was active before the pbuffer was used.
HDC d_prevDC
Handle to the device context in use when we switched to the pbuffer.
Definition WGLPBTextureTarget.h:98
void enablePBuffer() const
Switch rendering so it targets the pbuffer.
HPBUFFERARB d_pbuffer
Handle to the pbuffer itself.
Definition WGLPBTextureTarget.h:90
void grabTexture()
Grab the texture to a local buffer.
void initialisePBuffer()
Initialise the PBuffer with the needed size.
void activate()
Activate the render target and put it in a state ready to be drawn to.
HDC d_hdc
Handle to the Windows device context for the pbuffer.
Definition WGLPBTextureTarget.h:94
Main namespace for Crazy Eddie's GUI Library.
Definition arch_overview.dox:1