60 lines
1.4 KiB
Plaintext
60 lines
1.4 KiB
Plaintext
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//C++ header - Open Scene Graph - Copyright (C) 1998-2002 Robert Osfield
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//Distributed under the terms of the GNU Library General Public License (LGPL)
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//as published by the Free Software Foundation.
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#ifndef OSG_BUFFERED_VALUE
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#define OSG_BUFFERED_VALUE 1
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#include <osg/DisplaySettings>
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#include <vector>
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namespace osg {
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/** Simple buffered value array which is used for values that need to multibuffered on
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* one per graphics context basis.*/
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template<class T>
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class buffered_value
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{
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public:
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inline buffered_value():
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_array(DisplaySettings::instance()->getMaxNumberOfGraphicsContexts(),0)
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{}
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buffered_value& operator = (const buffered_value& rhs)
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{
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_array = rhs._array;
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return *this;
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}
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inline void clear() { _array.clear(); }
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inline bool empty() const { return _array.empty(); }
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inline unsigned int size() const { return _array.size(); }
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inline T& operator[] (unsigned int pos)
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{
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// automatically resize array.
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if (_array.size()<=pos)
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_array.resize(pos+1,0);
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return _array[pos];
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}
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/* // do we implement the const version???
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inline T operator[] (unsigned int pos) const
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{
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return 0;
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}
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*/
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protected:
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std::vector<T> _array;
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};
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}
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#endif
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