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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSGVIEWER_PIXELBUFFERCARBON
#define OSGVIEWER_PIXELBUFFERCARBON 1
#if defined (__APPLE__) && (!__LP64__)
#include <osg/GraphicsContext>
#include <osgViewer/api/Carbon/GraphicsHandleCarbon>
namespace osgViewer
{
class OSGVIEWER_EXPORT PixelBufferCarbon : public osg::GraphicsContext, public osgViewer::GraphicsHandleCarbon
{
public:
PixelBufferCarbon(osg::GraphicsContext::Traits* traits):
_valid(false),
_initialized(false),
_realized(false),
_pixelformat(0),
_pbuffer(0)
{
_traits = traits;
init();
if (valid())
{
setState( new osg::State );
getState()->setGraphicsContext(this);
if (_traits.valid() && _traits->sharedContext.valid())
{
getState()->setContextID( _traits->sharedContext->getState()->getContextID() );
incrementContextIDUsageCount( getState()->getContextID() );
}
else
{
getState()->setContextID( osg::GraphicsContext::createNewContextID() );
}
}
}
virtual bool isSameKindAs(const Object* object) const { return dynamic_cast<const PixelBufferCarbon*>(object)!=0; }
virtual const char* libraryName() const { return "osgViewer"; }
virtual const char* className() const { return "PixelBufferCarbon"; }
virtual bool valid() const { return _valid; }
/** Realise the GraphicsContext.*/
virtual bool realizeImplementation();
/** Return true if the graphics context has been realised and is ready to use.*/
virtual bool isRealizedImplementation() const { return _realized; }
/** Close the graphics context.*/
virtual void closeImplementation();
/** Make this graphics context current.*/
virtual bool makeCurrentImplementation();
/** Make this graphics context current with specified read context implementation. */
virtual bool makeContextCurrentImplementation(osg::GraphicsContext* readContext);
/** Release the graphics context.*/
virtual bool releaseContextImplementation();
/** Bind the graphics context to associated texture implementation.*/
virtual void bindPBufferToTextureImplementation( GLenum buffer );
/** Swap the front and back buffers.*/
virtual void swapBuffersImplementation();
static AGLPixelFormat createPixelFormat(osg::GraphicsContext::Traits* traits);
public:
protected:
~PixelBufferCarbon();
void init();
bool _valid;
bool _initialized;
bool _realized;
AGLPixelFormat _pixelformat;
AGLPbuffer _pbuffer;
};
}
#endif
#endif
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