Terrain::BufferCache Class Reference

Implements creation and caching of vertex buffers for terrain chunks. More...

#include <buffercache.hpp>

Collaboration diagram for Terrain::BufferCache:

Public Member Functions
osg::ref_ptr< osg::DrawElements >	getIndexBuffer (unsigned int numVerts, unsigned int flags)
osg::ref_ptr< osg::Vec2Array >	getUVBuffer (unsigned int numVerts)
void	clearCache ()
void	releaseGLObjects (osg::State *state)

Private Attributes
std::map< std::pair< int, int > , osg::ref_ptr < osg::DrawElements > >	mIndexBufferMap
OpenThreads::Mutex	mIndexBufferMutex
std::map< int, osg::ref_ptr < osg::Vec2Array > >	mUvBufferMap
OpenThreads::Mutex	mUvBufferMutex

Detailed Description

Implements creation and caching of vertex buffers for terrain chunks.

Member Function Documentation

void Terrain::BufferCache::clearCache

(

)

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osg::ref_ptr< osg::DrawElements > Terrain::BufferCache::getIndexBuffer	(	unsigned int	numVerts,
		unsigned int	flags
	)

Parameters

flags

first 4*4 bits are LOD deltas on each edge, respectively (4 bits each) next 4 bits are LOD level of the index buffer (LOD 0 = don't omit any vertices)

Note

Thread safe.

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osg::ref_ptr< osg::Vec2Array > Terrain::BufferCache::getUVBuffer

(

unsigned int

numVerts

)

Note

Thread safe.

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void Terrain::BufferCache::releaseGLObjects

(

osg::State *

state

)

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Member Data Documentation

std::map<std::pair<int, int>, osg::ref_ptr<osg::DrawElements> > Terrain::BufferCache::mIndexBufferMap

private

OpenThreads::Mutex Terrain::BufferCache::mIndexBufferMutex

private

std::map<int, osg::ref_ptr<osg::Vec2Array> > Terrain::BufferCache::mUvBufferMap

private

OpenThreads::Mutex Terrain::BufferCache::mUvBufferMutex

private

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The documentation for this class was generated from the following files:

• /home/travis/build/elsid/openmw/components/terrain/buffercache.hpp
• /home/travis/build/elsid/openmw/components/terrain/buffercache.cpp