FGFS-4.1/OpenSceneGraph
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Additions for the support for ConvexPlaneOccluder. Work still underway.

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This commit is contained in:
Robert Osfield
2002-06-03 15:39:41 +00:00
parent 518dd5710a
commit 3f84849210
19 changed files with 328 additions and 246 deletions
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20
include/osg/fast_back_stack
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@@ -5,6 +5,8 @@
#ifndef OSG_FAST_BACK_STACK
#define OSG_FAST_BACK_STACK 1
#include <vector>
namespace osg {
/** Simple stack implementation that keeps the back() cached locally for fast access
@@ -22,8 +24,17 @@ class fast_back_stack
inline fast_back_stack():_value(),_stack(),_size(0) {}
inline fast_back_stack(const fast_back_stack& fbs):_value(fbs._value),_stack(fbs._stack),_size(fbs._size) {}
inline fast_back_stack(const T& value):_value(value),_stack(),_size(1) {}
fast_back_stack& operator = (const fast_back_stack& fbs)
{
_value = fbs._value;
_stack = fbs._stack;
_size = fbs._size;
}
inline void clear() { _stack.clear(); _size = 0; }
inline bool empty() const { return _size==0; }
@@ -34,6 +45,15 @@ class fast_back_stack
inline const T& back() const { return _value; }
inline void push_back()
{
if (_size>0)
{
_stack.push_back(_value);
}
++_size;
}
inline void push_back(const T& value)
{
if (_size>0)