dd996a3289
forcing users to use osgDB::readRef*File() methods. The later is preferable as it closes a potential threading bug when using paging databases in conjunction
with the osgDB::Registry Object Cache. This threading bug occurs when one thread gets an object from the Cache via an osgDB::read*File() call where only
a pointer to the object is passed back, so taking a reference to the object is delayed till it gets reassigned to a ref_ptr<>, but at the same time another
thread calls a flush of the Object Cache deleting this object as it's referenceCount is now zero. Using osgDB::readREf*File() makes sure the a ref_ptr<> is
passed back and the referenceCount never goes to zero.
To ensure the OSG builds when OSG_PROVIDE_READFILE is to OFF the many cases of osgDB::read*File() usage had to be replaced with a ref_ptr<> osgDB::readRef*File()
usage. The avoid this change causing lots of other client code to be rewritten to handle the use of ref_ptr<> in place of C pointer I introduced a serious of
templte methods in various class to adapt ref_ptr<> to the underly C pointer to be passed to old OSG API's, example of this is found in include/osg/Group:
bool addChild(Node* child); // old method which can only be used with a Node*
tempalte<class T> bool addChild(const osg::ref_ptr<T>& child) { return addChild(child.get()); } // adapter template method
These changes together cover 149 modified files, so it's a large submission. This extent of changes are warrent to make use of the Object Cache
and multi-threaded loaded more robust.
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@15164 16af8721-9629-0410-8352-f15c8da7e697
121 lines
4.5 KiB
C++
121 lines
4.5 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGPARTICLE_PARTICLEEFFECT
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#define OSGPARTICLE_PARTICLEEFFECT
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#include <osgParticle/Emitter>
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#include <osgParticle/Program>
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namespace osgParticle
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{
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class OSGPARTICLE_EXPORT ParticleEffect : public osg::Group
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{
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public:
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explicit ParticleEffect(bool automaticSetup=true):
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_automaticSetup(automaticSetup),
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_useLocalParticleSystem(true),
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_scale(1.0f),
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_intensity(1.0f),
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_startTime(0.0),
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_emitterDuration(1.0),
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_wind(0.0f,0.0f,0.0f)
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{}
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ParticleEffect(const ParticleEffect& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);
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virtual const char* libraryName() const { return "osgParticle"; }
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virtual const char* className() const { return "ParticleEffect"; }
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virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const ParticleEffect*>(obj) != 0; }
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virtual void accept(osg::NodeVisitor& nv) { if (nv.validNodeMask(*this)) { nv.pushOntoNodePath(this); nv.apply(*this); nv.popFromNodePath(); } }
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void setAutomaticSetup(bool flag) { _automaticSetup = flag; }
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bool getAutomaticSetup() const { return _automaticSetup; }
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void setUseLocalParticleSystem(bool local);
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bool getUseLocalParticleSystem() const { return _useLocalParticleSystem; }
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void setTextureFileName(const std::string& filename);
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const std::string& getTextureFileName() const { return _textureFileName; }
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void setDefaultParticleTemplate(const Particle& p);
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const Particle& getDefaultParticleTemplate() const { return _defaultParticleTemplate; }
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void setPosition(const osg::Vec3& position);
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const osg::Vec3& getPosition() const { return _position; }
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void setScale(float scale);
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float getScale() const { return _scale; }
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void setIntensity(float intensity);
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float getIntensity() const { return _intensity; }
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void setStartTime(double startTime);
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double getStartTime() const { return _startTime; }
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void setEmitterDuration(double duration);
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double getEmitterDuration() const { return _emitterDuration; }
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void setParticleDuration(double duration);
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double getParticleDuration() const { return _defaultParticleTemplate.getLifeTime(); }
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void setWind(const osg::Vec3& wind);
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const osg::Vec3& getWind() const { return _wind; }
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/// Get whether all particles are dead
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bool areAllParticlesDead() const { return _particleSystem.valid()?_particleSystem->areAllParticlesDead():true; }
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virtual Emitter* getEmitter() = 0;
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virtual const Emitter* getEmitter() const = 0;
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virtual Program* getProgram() = 0;
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virtual const Program* getProgram() const = 0;
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void setParticleSystem(ParticleSystem* ps);
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template<class T> void setParticleSystem(const osg::ref_ptr<T>& ri) { setParticleSystem(ri.get()); }
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inline ParticleSystem* getParticleSystem() { return _particleSystem.get(); }
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inline const ParticleSystem* getParticleSystem() const { return _particleSystem.get(); }
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virtual void setDefaults();
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virtual void setUpEmitterAndProgram() = 0;
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virtual void buildEffect();
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protected:
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virtual ~ParticleEffect() {}
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bool _automaticSetup;
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osg::ref_ptr<ParticleSystem> _particleSystem;
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bool _useLocalParticleSystem;
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std::string _textureFileName;
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Particle _defaultParticleTemplate;
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osg::Vec3 _position;
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float _scale;
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float _intensity;
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double _startTime;
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double _emitterDuration;
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osg::Vec3 _wind;
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};
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}
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#endif
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