-// modellib.cxx - implement an SSG model library.
+// Copyright (C) 2008 Till Busch buti@bux.at
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU 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
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+//
#ifdef HAVE_CONFIG_H
# include <simgear_config.h>
#endif
-#include <simgear/compiler.h>
+#include <boost/algorithm/string.hpp>
+
+#include <osg/PagedLOD>
+#include <osg/ProxyNode>
+#include <osgDB/ReadFile>
+#include <osgDB/WriteFile>
+#include <osgDB/Registry>
+
+#include <simgear/constants.h>
#include <simgear/props/props.hxx>
+#include <simgear/props/props_io.hxx>
+#include <simgear/scene/model/model.hxx>
+#include <simgear/scene/model/ModelRegistry.hxx>
+#include <simgear/scene/util/SGReaderWriterOptions.hxx>
+#include <simgear/misc/ResourceManager.hxx>
-#include "model.hxx"
-#include "animation.hxx"
-#include "personality.hxx"
+#include "SGReaderWriterXML.hxx"
#include "modellib.hxx"
+using std::string;
+using namespace simgear;
+
+osgDB::RegisterReaderWriterProxy<SGReaderWriterXML> g_readerWriter_XML_Proxy;
+ModelRegistryCallbackProxy<LoadOnlyCallback> g_xmlCallbackProxy("xml");
+
+SGPropertyNode_ptr SGModelLib::static_propRoot;
+SGModelLib::panel_func SGModelLib::static_panelFunc = NULL;
-\f
////////////////////////////////////////////////////////////////////////
// Implementation of SGModelLib.
////////////////////////////////////////////////////////////////////////
+void SGModelLib::init(const string &root_dir, SGPropertyNode* root)
+{
+ osgDB::Registry::instance()->getDataFilePathList().push_front(root_dir);
+ static_propRoot = root;
+}
-SGModelLib::SGModelLib ()
+void SGModelLib::resetPropertyRoot()
{
+ static_propRoot.clear();
}
-SGModelLib::~SGModelLib ()
+void SGModelLib::setPanelFunc(panel_func pf)
{
+ static_panelFunc = pf;
}
-void
-SGModelLib::flush1()
+std::string SGModelLib::findDataFile(const std::string& file,
+ const osgDB::Options* opts,
+ SGPath currentPath)
+{
+ if (file.empty())
+ return file;
+ SGPath p = ResourceManager::instance()->findPath(file, currentPath);
+ if (p.exists()) {
+ return p.str();
+ }
+
+ // finally hand on to standard OSG behaviour
+ return osgDB::findDataFile(file, opts);
+}
+
+SGModelLib::SGModelLib()
{
- // This routine is disabled because I believe I see multiple
- // problems with it.
- //
- // 1. It blindly deletes all managed models that aren't used
- // elsewhere. Is this what we really want???? In the one
- // FlightGear case that calls this method, this clearly is not the
- // intention. I believe it makes more sense to simply leave items
- // in the lbrary, even if they are not currently used, they will be
- // there already when/if we want to use them later.
- //
- // 2. This routine only does a deRef() on the model. This doesn't actually
- // delete the ssg tree so there is a memory leak.
-
- SG_LOG( SG_GENERAL, SG_ALERT,
- "WARNGING: a disabled/broken routine has been called. This should be fixed!" );
-
- return;
-
- map<string, ssgSharedPtr<ssgEntity> >::iterator it = _table.begin();
- while (it != _table.end()) {
- // If there is only one reference, it's
- // ours; no one else is using the item.
- if (!it->second.isShared()) {
- string key = it->first;
- _table.erase(it);
- it = _table.upper_bound(key);
- } else
- it++;
- }
}
-static int
-personality_pretrav_callback(ssgEntity * entity, int mask)
+SGModelLib::~SGModelLib()
{
- ((SGPersonalityBranch *)entity)->_old_current = SGAnimation::current_object;
- SGAnimation::current_object = (SGPersonalityBranch *)entity;
- return 1;
}
-static int
-personality_posttrav_callback(ssgEntity * entity, int mask)
+namespace
+{
+osg::Node* loadFile(const string& path, SGReaderWriterOptions* options)
{
- SGAnimation::current_object = ((SGPersonalityBranch *)entity)->_old_current;
- ((SGPersonalityBranch *)entity)->_old_current = 0;
- return 1;
+ using namespace osg;
+ using namespace osgDB;
+ if (boost::iends_with(path, ".ac"))
+ options->setInstantiateEffects(true);
+ ref_ptr<Node> model = readRefNodeFile(path, options);
+ if (!model)
+ return 0;
+ else
+ return model.release();
+}
}
-ssgEntity *
-SGModelLib::load_model( const string &fg_root,
- const string &path,
- SGPropertyNode *prop_root,
- double sim_time_sec )
+osg::Node*
+SGModelLib::loadModel(const string &path,
+ SGPropertyNode *prop_root,
+ SGModelData *data,
+ bool load2DPanels)
{
- ssgBranch *personality_branch = new SGPersonalityBranch;
- personality_branch->setTravCallback(SSG_CALLBACK_PRETRAV, personality_pretrav_callback);
- personality_branch->setTravCallback(SSG_CALLBACK_POSTTRAV, personality_posttrav_callback);
-
- // FIXME: normalize path to
- // avoid duplicates.
- map<string, ssgSharedPtr<ssgEntity> >::iterator it = _table.find(path);
- if (it == _table.end()) {
- ssgSharedPtr<ssgEntity> model = sgLoad3DModel(fg_root, path, prop_root,
- sim_time_sec );
- _table[path] = model; // add one reference to keep it around
- personality_branch->addKid( model );
- } else {
- personality_branch->addKid( it->second );
+ osg::ref_ptr<SGReaderWriterOptions> opt;
+ opt = SGReaderWriterOptions::copyOrCreate(osgDB::Registry::instance()->getOptions());
+ opt->setPropertyNode(prop_root ? prop_root: static_propRoot.get());
+ opt->setModelData(data);
+
+ if (load2DPanels) {
+ opt->setLoadPanel(static_panelFunc);
}
- return personality_branch;
+
+ osg::Node *n = loadFile(path, opt.get());
+ if (n && n->getName().empty())
+ n->setName("Direct loaded model \"" + path + "\"");
+ return n;
+
}
+osg::Node*
+SGModelLib::loadDeferredModel(const string &path, SGPropertyNode *prop_root,
+ SGModelData *data)
+{
+ osg::ProxyNode* proxyNode = new osg::ProxyNode;
+ proxyNode->setLoadingExternalReferenceMode(osg::ProxyNode::DEFER_LOADING_TO_DATABASE_PAGER);
+ proxyNode->setFileName(0, path);
+
+ osg::ref_ptr<SGReaderWriterOptions> opt;
+ opt = SGReaderWriterOptions::copyOrCreate(osgDB::Registry::instance()->getOptions());
+ opt->setPropertyNode(prop_root ? prop_root: static_propRoot.get());
+ opt->setModelData(data);
+ opt->setLoadPanel(static_panelFunc);
+ if (SGPath(path).lower_extension() == "ac")
+ opt->setInstantiateEffects(true);
+ if (!prop_root || prop_root->getBoolValue("/sim/rendering/cache", true))
+ opt->setObjectCacheHint(osgDB::Options::CACHE_ALL);
+ else
+ opt->setObjectCacheHint(osgDB::Options::CACHE_NONE);
+ proxyNode->setDatabaseOptions(opt.get());
+
+ return proxyNode;
+}
+
+osg::Node*
+SGModelLib::loadPagedModel(const string &path, SGPropertyNode *prop_root,
+ SGModelData *data)
+{
+ osg::PagedLOD *plod = new osg::PagedLOD;
+ plod->setName("Paged LOD for \"" + path + "\"");
+ plod->setFileName(0, path);
+ plod->setRange(0, 0.0, 50.0*SG_NM_TO_METER);
+
+ osg::ref_ptr<SGReaderWriterOptions> opt;
+ opt = SGReaderWriterOptions::copyOrCreate(osgDB::Registry::instance()->getOptions());
+ opt->setPropertyNode(prop_root ? prop_root: static_propRoot.get());
+ opt->setModelData(data);
+ opt->setLoadPanel(static_panelFunc);
+ if (SGPath(path).lower_extension() == "ac")
+ opt->setInstantiateEffects(true);
+ if (!prop_root || prop_root->getBoolValue("/sim/rendering/cache", true))
+ opt->setObjectCacheHint(osgDB::Options::CACHE_ALL);
+ else
+ opt->setObjectCacheHint(osgDB::Options::CACHE_NONE);
+ plod->setDatabaseOptions(opt.get());
+ return plod;
+}
// end of modellib.cxx
projects / simgear.git / blobdiff