121 lines
3.1 KiB
C++
121 lines
3.1 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 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_BUFFERED_VALUE
|
|
#define OSG_BUFFERED_VALUE 1
|
|
|
|
#include <osg/DisplaySettings>
|
|
#include <vector>
|
|
|
|
namespace osg {
|
|
|
|
/** Simple buffered value array which is used for values that need to multibuffered on
|
|
* one per graphics context basis.*/
|
|
|
|
template<class T>
|
|
class buffered_value
|
|
{
|
|
public:
|
|
|
|
inline buffered_value():
|
|
_array(DisplaySettings::instance()->getMaxNumberOfGraphicsContexts(),0)
|
|
{}
|
|
|
|
buffered_value& operator = (const buffered_value& rhs)
|
|
{
|
|
_array = rhs._array;
|
|
return *this;
|
|
}
|
|
|
|
inline void setAllElementsTo(const T& t) { std::fill(_array.begin(),_array.end(),t); }
|
|
|
|
inline void clear() { _array.clear(); }
|
|
|
|
inline bool empty() const { return _array.empty(); }
|
|
|
|
inline unsigned int size() const { return _array.size(); }
|
|
|
|
inline T& operator[] (unsigned int pos)
|
|
{
|
|
// automatically resize array.
|
|
if (_array.size()<=pos)
|
|
_array.resize(pos+1,0);
|
|
|
|
return _array[pos];
|
|
}
|
|
|
|
inline T operator[] (unsigned int pos) const
|
|
{
|
|
// automatically resize array.
|
|
if (_array.size()<=pos)
|
|
_array.resize(pos+1,0);
|
|
|
|
return _array[pos];
|
|
}
|
|
|
|
protected:
|
|
|
|
mutable std::vector<T> _array;
|
|
};
|
|
|
|
template<class T>
|
|
class buffered_object
|
|
{
|
|
public:
|
|
|
|
inline buffered_object():
|
|
_array(DisplaySettings::instance()->getMaxNumberOfGraphicsContexts())
|
|
{}
|
|
|
|
buffered_object& operator = (const buffered_object& rhs)
|
|
{
|
|
_array = rhs._array;
|
|
return *this;
|
|
}
|
|
|
|
inline void setAllElementsTo(const T& t) { std::fill(_array.begin(),_array.end(),t); }
|
|
|
|
inline void clear() { _array.clear(); }
|
|
|
|
inline bool empty() const { return _array.empty(); }
|
|
|
|
inline unsigned int size() const { return _array.size(); }
|
|
|
|
inline T& operator[] (unsigned int pos)
|
|
{
|
|
// automatically resize array.
|
|
if (_array.size()<=pos)
|
|
_array.resize(pos+1);
|
|
|
|
return _array[pos];
|
|
}
|
|
|
|
inline const T& operator[] (unsigned int pos) const
|
|
{
|
|
// automatically resize array.
|
|
if (_array.size()<=pos)
|
|
_array.resize(pos+1);
|
|
|
|
return _array[pos];
|
|
}
|
|
|
|
|
|
protected:
|
|
|
|
mutable std::vector<T> _array;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|