/usr/include/cegui-0.8.7/CEGUI/RendererModules/OpenGL/ApplePBTextureTarget.h is in libcegui-mk2-dev 0.8.7-1.3+b2.
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created: Sun Feb 1 2009
author: Paul D Turner
*************************************************************************/
/***************************************************************************
* Copyright (C) 2004 - 2011 Paul D Turner & The CEGUI Development Team
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
***************************************************************************/
#ifndef _CEGUIOpenGLApplePBTextureTarget_h_
#define _CEGUIOpenGLApplePBTextureTarget_h_
#include <OpenGL/OpenGL.h>
#include "CEGUI/RendererModules/OpenGL/TextureTarget.h"
// Start of CEGUI namespace section
namespace CEGUI
{
class OpenGLTexture;
/*!
\brief
OpenGLApplePBTextureTarget - allows rendering to an OpenGL texture via the
Apple pbuffer extension.
*/
class OpenGLApplePBTextureTarget : public OpenGLTextureTarget
{
public:
OpenGLApplePBTextureTarget(OpenGLRendererBase& owner);
virtual ~OpenGLApplePBTextureTarget();
// overrides from OpenGLRenderTarget
void activate();
void deactivate();
// implementation of TextureTarget interface
void clear();
void declareRenderSize(const Sizef& sz);
// specialise functions from OpenGLTextureTarget
void grabTexture();
void restoreTexture();
protected:
//! default size of created texture objects
static const float DEFAULT_SIZE;
//! Perform basic initialisation of the texture we're going to use.
void initialiseTexture();
//! Switch rendering so it targets the pbuffer
void enablePBuffer() const;
//! Switch rendering to target what was active before the pbuffer was used.
void disablePBuffer() const;
//! The current pbuffer object used by this TextureTarget.
CGLPBufferObj d_pbuffer;
//! The GL context that's used by this TextureTarget.
CGLContextObj d_context;
//! virtual screen used by the "parent" context
GLint d_screen;
//! Context that was active before ours was activated.
mutable CGLContextObj d_prevContext;
};
} // End of CEGUI namespace section
#endif // end of guard _CEGUIOpenGLApplePBTextureTarget_h_
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