Add SceneManager and clone utility
scrawl
9 years ago
parent
60f288195f
commit
99e1720980
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#include "resourcesystem.hpp"
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#include "scenemanager.hpp"
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namespace Resource
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{
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ResourceSystem::ResourceSystem(const VFS::Manager *vfs)
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: mVFS(vfs)
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{
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mSceneManager.reset(new SceneManager(vfs));
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}
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SceneManager* ResourceSystem::getSceneManager()
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{
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return mSceneManager.get();
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}
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const VFS::Manager* ResourceSystem::getVFS() const
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{
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return mVFS;
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}
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}
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#ifndef OPENMW_COMPONENTS_RESOURCE_RESOURCESYSTEM_H
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#define OPENMW_COMPONENTS_RESOURCE_RESOURCESYSTEM_H
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#include <memory>
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namespace VFS
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{
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class Manager;
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}
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namespace Resource
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{
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class SceneManager;
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/// @brief Wrapper class that constructs and provides access to the various resource subsystems.
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class ResourceSystem
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{
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public:
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ResourceSystem(const VFS::Manager* vfs);
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SceneManager* getSceneManager();
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const VFS::Manager* getVFS() const;
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private:
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std::auto_ptr<SceneManager> mSceneManager;
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const VFS::Manager* mVFS;
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};
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}
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#endif
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#include "scenemanager.hpp"
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#include <osg/Node>
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#include <components/nifosg/nifloader.hpp>
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#include <components/nif/niffile.hpp>
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#include <components/sceneutil/clone.hpp>
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namespace Resource
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{
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SceneManager::SceneManager(const VFS::Manager *vfs)
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: mVFS(vfs)
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{
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}
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osg::ref_ptr<const osg::Node> SceneManager::getTemplate(const std::string &name)
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{
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std::string normalized = name;
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mVFS->normalizeFilename(normalized);
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Index::iterator it = mIndex.find(normalized);
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if (it == mIndex.end())
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{
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Files::IStreamPtr file = mVFS->get(normalized);
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// TODO: add support for non-NIF formats
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NifOsg::Loader loader;
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loader.resourceManager = mVFS;
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osg::ref_ptr<const osg::Node> loaded = loader.load(Nif::NIFFilePtr(new Nif::NIFFile(file, normalized)));
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// TODO: provide way for the user to get textKeys (attach to the node?)
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mIndex[normalized] = loaded;
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return loaded;
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}
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else
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return it->second;
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}
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osg::ref_ptr<osg::Node> SceneManager::getInstance(const std::string &name)
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{
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osg::ref_ptr<const osg::Node> scene = getTemplate(name);
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return osg::clone(scene.get(), SceneUtil::CopyOp());
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}
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}
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#ifndef OPENMW_COMPONENTS_RESOURCE_SCENEMANAGER_H
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#define OPENMW_COMPONENTS_RESOURCE_SCENEMANAGER_H
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#include <string>
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#include <map>
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#include <osg/ref_ptr>
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#include <osg/Node>
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namespace VFS
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{
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class Manager;
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}
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namespace Resource
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{
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/// @brief Handles loading and caching of scenes, e.g. NIF files
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class SceneManager
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{
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public:
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SceneManager(const VFS::Manager* vfs);
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/// Get a read-only copy of this scene "template"
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osg::ref_ptr<const osg::Node> getTemplate(const std::string& name);
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/// Create an instance of the given scene template
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osg::ref_ptr<osg::Node> getInstance(const std::string& name);
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private:
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const VFS::Manager* mVFS;
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// observer_ptr?
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typedef std::map<std::string, osg::ref_ptr<const osg::Node> > Index;
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Index mIndex;
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};
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}
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#endif
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#include "clone.hpp"
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#include <osg/StateSet>
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#include <osgParticle/ParticleProcessor>
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#include <osgParticle/ParticleSystemUpdater>
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#include <osgParticle/Emitter>
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#include <osgParticle/Program>
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#include <osgAnimation/RigGeometry>
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#include <osgAnimation/MorphGeometry>
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namespace SceneUtil
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{
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CopyOp::CopyOp()
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{
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setCopyFlags(osg::CopyOp::DEEP_COPY_NODES
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// Controller might need different inputs per scene instance
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| osg::CopyOp::DEEP_COPY_CALLBACKS);
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}
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osg::StateSet* CopyOp::operator ()(const osg::StateSet* stateset) const
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{
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if (!stateset)
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return NULL;
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if (stateset->getDataVariance() == osg::StateSet::DYNAMIC)
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return osg::clone(stateset, osg::CopyOp::DEEP_COPY_STATESETS);
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return const_cast<osg::StateSet*>(stateset);
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}
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osg::Node* CopyOp::operator ()(const osg::Node* node) const
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{
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if (const osgParticle::ParticleProcessor* processor = dynamic_cast<const osgParticle::ParticleProcessor*>(node))
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return operator()(processor);
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if (const osgParticle::ParticleSystemUpdater* updater = dynamic_cast<const osgParticle::ParticleSystemUpdater*>(node))
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{
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osgParticle::ParticleSystemUpdater* cloned = osg::clone(updater, osg::CopyOp::DEEP_COPY_NODES);
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mMap2[cloned] = updater->getParticleSystem(0);
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return cloned;
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}
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return osg::CopyOp::operator()(node);
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}
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osg::Drawable* CopyOp::operator ()(const osg::Drawable* drawable) const
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{
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if (const osgParticle::ParticleSystem* partsys = dynamic_cast<const osgParticle::ParticleSystem*>(drawable))
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return operator()(partsys);
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if (dynamic_cast<const osgAnimation::RigGeometry*>(drawable)
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|| dynamic_cast<const osgAnimation::MorphGeometry*>(drawable))
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return osg::clone(drawable, osg::CopyOp::DEEP_COPY_DRAWABLES);
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return osg::CopyOp::operator()(drawable);
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}
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osgParticle::ParticleProcessor* CopyOp::operator() (const osgParticle::ParticleProcessor* processor) const
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{
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osgParticle::ParticleProcessor* cloned = osg::clone(processor, osg::CopyOp::DEEP_COPY_NODES);
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mMap[cloned] = processor->getParticleSystem();
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return cloned;
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}
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osgParticle::ParticleSystem* CopyOp::operator ()(const osgParticle::ParticleSystem* partsys) const
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{
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osgParticle::ParticleSystem* cloned = osg::clone(partsys, osg::CopyOp::DEEP_COPY_DRAWABLES);
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for (std::map<osgParticle::ParticleProcessor*, const osgParticle::ParticleSystem*>::const_iterator it = mMap.begin(); it != mMap.end(); ++it)
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{
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if (it->second == partsys)
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{
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it->first->setParticleSystem(cloned);
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}
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}
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for (std::map<osgParticle::ParticleSystemUpdater*, const osgParticle::ParticleSystem*>::const_iterator it = mMap2.begin(); it != mMap2.end(); ++it)
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{
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if (it->second == partsys)
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{
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osgParticle::ParticleSystemUpdater* updater = it->first;
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updater->removeParticleSystem(updater->getParticleSystem(0));
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updater->addParticleSystem(cloned);
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}
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}
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return cloned;
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}
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}
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@ -0,0 +1,45 @@
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#ifndef OPENMW_COMPONENTS_SCENEUTIL_CLONE_H
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#define OPENMW_COMPONENTS_SCENEUTIL_CLONE_H
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#include <map>
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#include <osg/CopyOp>
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namespace osgParticle
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{
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class ParticleProcessor;
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class ParticleSystem;
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class ParticleSystemUpdater;
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}
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namespace SceneUtil
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{
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/// @par Defines the cloning behaviour we need:
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/// * Assigns updated ParticleSystem pointers on cloned emitters and programs.
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/// * Creates deep copy of StateSets if they have a DYNAMIC data variance.
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/// * Deep copies RigGeometry and MorphGeometry so they can animate without affecting clones.
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/// @warning Do not use an object of this class for more than one copy operation.
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class CopyOp : public osg::CopyOp
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{
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public:
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CopyOp();
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virtual osgParticle::ParticleSystem* operator() (const osgParticle::ParticleSystem* partsys) const;
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virtual osgParticle::ParticleProcessor* operator() (const osgParticle::ParticleProcessor* processor) const;
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virtual osg::Node* operator() (const osg::Node* node) const;
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virtual osg::Drawable* operator() (const osg::Drawable* drawable) const;
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virtual osg::StateSet* operator() (const osg::StateSet* stateset) const;
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private:
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// maps new ParticleProcessor to their old ParticleSystem pointer
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// a little messy, but I think this should be the most efficient way
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mutable std::map<osgParticle::ParticleProcessor*, const osgParticle::ParticleSystem*> mMap;
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mutable std::map<osgParticle::ParticleSystemUpdater*, const osgParticle::ParticleSystem*> mMap2;
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};
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}
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#endif
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