/usr/include/osgEarthSymbology/ResourceCache is in libosgearth-dev 2.5.0+dfsg-8build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | /* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2013 Pelican Mapping
* http://osgearth.org
*
* osgEarth is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#ifndef OSGEARTHSYMBOLOGY_RESOURCE_CACHE_H
#define OSGEARTHSYMBOLOGY_RESOURCE_CACHE_H 1
#include <osgEarthSymbology/Common>
#include <osgEarthSymbology/Skins>
#include <osgEarthSymbology/MarkerResource>
#include <osgEarthSymbology/InstanceResource>
#include <osgEarth/Containers>
#include <osgEarth/ThreadingUtils>
namespace osgEarth { namespace Symbology
{
using namespace osgEarth;
/**
* Caches the runtime objects created by resources, so we can avoid creating them
* each time they are referenced.
*
* This object is intended for use by a FilterContext, and therefore will only
* run in an isolated thread. No thread-safety is required in that scenario.
*/
class OSGEARTHSYMBOLOGY_EXPORT ResourceCache : public osg::Referenced
{
public:
/**
* Constructs a new resource cache.
* @param threadSafe Whether to protect access to the cache so that you can
* use it from multiple threads (default = false)
*/
ResourceCache(
const osgDB::Options* dbOptions,
bool threadSafe =false );
/** dtor */
virtual ~ResourceCache() { }
/**
* Fetches the StateSet implementation corresponding to a Skin.
*/
bool getStateSet( SkinResource* skin, osg::ref_ptr<osg::StateSet>& output );
/**
* Get the statistics collected from the skin cache.
*/
const CacheStats getSkinStats() const { return _skinCache.getStats(); }
/**
* Gets a node corresponding to a marker.
* @deprecated
*/
bool getMarkerNode( MarkerResource* marker, osg::ref_ptr<osg::Node>& output );
/**
* Gets a node corresponding to an instance resource.
*/
bool getInstanceNode( InstanceResource* instance, osg::ref_ptr<osg::Node>& output );
protected:
osg::ref_ptr<const osgDB::Options> _dbOptions;
bool _threadSafe;
typedef LRUCache<std::string, osg::ref_ptr<osg::StateSet> > SkinCache;
SkinCache _skinCache;
Threading::ReadWriteMutex _skinMutex;
typedef LRUCache<std::string, osg::ref_ptr<osg::Node> > MarkerCache;
MarkerCache _markerCache;
Threading::ReadWriteMutex _markerMutex;
typedef LRUCache<std::string, osg::ref_ptr<osg::Node> > InstanceCache;
InstanceCache _instanceCache;
Threading::ReadWriteMutex _instanceMutex;
};
} } // namespace osgEarth::Symbology
#endif // OSGEARTHSYMBOLOGY_RESOURCE_CACHE_H
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