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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2014 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 OSG_VIEWPORTINDEXED
#define OSG_VIEWPORTINDEXED 1
#include <osg/Viewport>
namespace osg {
/** Encapsulates glViewportIndexed function : the index version of glViewport for multiple render target.
*/
class OSG_EXPORT ViewportIndexed : public Viewport
{
public :
ViewportIndexed();
ViewportIndexed(unsigned int index, value_type x,value_type y,value_type width,value_type height):
Viewport(x,y,width,height),
_index(index) {}
/** Copy constructor using CopyOp to manage deep vs shallow copy. */
ViewportIndexed(const ViewportIndexed& cm,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
Viewport(cm,copyop),
_index(cm._index) {}
META_StateAttribute(osg, ViewportIndexed, VIEWPORTINDEXED);
/** Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
virtual int compare(const StateAttribute& sa) const
{
// Check for equal types, then create the rhs variable
// used by the COMPARE_StateAttribute_Parameter macros below.
COMPARE_StateAttribute_Types(ViewportIndexed,sa)
COMPARE_StateAttribute_Parameter(_index);
return Viewport::compare(sa);
}
/** Return the buffer index as the member identifier.*/
virtual unsigned int getMember() const { return _index; }
/** Set the index of the ViewportIndexed. */
void setIndex(unsigned int index);
/** Get the index of the ViewportIndexed. */
unsigned int getIndex() const { return _index; }
virtual void apply(State& state) const;
protected:
virtual ~ViewportIndexed();
unsigned int _index;
};
}
#endif
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