FGFS-4.1/OpenSceneGraph
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From Peter Hrenka, "Fix counting number of new arrays and avoid

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building free-list when not needed (saves
a handfull of mallocs/frees).
"
This commit is contained in:
Robert Osfield
2008-12-16 12:38:10 +00:00
parent f63d33c003
commit aad0a2a2ba
1 changed files with 3 additions and 4 deletions
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7
src/osg/BufferObject.cpp
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@@ -356,8 +356,7 @@ void VertexBufferObject::compileBuffer(State& state) const
// osg::notify(osg::NOTICE)<<"VertexBufferObject::compileBuffer frameNumber="<<state.getFrameStamp()->getFrameNumber()<<std::endl;
unsigned int totalSizeRequired = 0;
// unsigned int numModified = 0;
// unsigned int numNotModified = 0;
unsigned int numNewArrays = 0;
for(BufferEntryArrayPairs::const_iterator itr = _bufferEntryArrayPairs.begin();
itr != _bufferEntryArrayPairs.end();
++itr)
@@ -366,6 +365,7 @@ void VertexBufferObject::compileBuffer(State& state) const
if (bep.second)
{
totalSizeRequired += bep.second->getTotalDataSize();
if (bep.first.dataSize == 0) ++numNewArrays;
}
}
@@ -402,9 +402,8 @@ void VertexBufferObject::compileBuffer(State& state) const
typedef std::map<unsigned int,std::vector<unsigned int> > SizePosMap_t;
SizePosMap_t freeList;
if (copyAll == false)
if (copyAll == false && numNewArrays > 0)
{
unsigned int numNewArrays = 0;
std::map<unsigned int,unsigned int> usedList;
for(BufferEntryArrayPairs::const_iterator itr = _bufferEntryArrayPairs.begin();
itr != _bufferEntryArrayPairs.end();