--- /dev/null
+// stgmerge.cxx -- combined STG models
+//
+// Copyright (C) 2015 Stuart Buchanan
+//
+// 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 <config.h>
+#endif
+
+#include <iostream>
+#include <cstdlib>
+#include <iomanip>
+
+#include <osg/MatrixTransform>
+#include <osg/ArgumentParser>
+#include <osg/Image>
+#include <osgViewer/Viewer>
+#include <osgViewer/ViewerEventHandlers>
+
+#include <osgGA/StateSetManipulator>
+#include <osgGA/TrackballManipulator>
+
+#include <osgDB/FileNameUtils>
+#include <osgDB/FileUtils>
+#include <osgDB/Registry>
+#include <osgDB/ReaderWriter>
+#include <osgDB/ReadFile>
+#include <osgDB/WriteFile>
+
+#include <osgUtil/Optimizer>
+
+#include <simgear/bucket/newbucket.hxx>
+#include <simgear/bvh/BVHNode.hxx>
+#include <simgear/bvh/BVHLineSegmentVisitor.hxx>
+#include <simgear/bvh/BVHPager.hxx>
+#include <simgear/bvh/BVHPageNode.hxx>
+#include <simgear/debug/logstream.hxx>
+#include <simgear/misc/sg_path.hxx>
+#include <simgear/misc/sgstream.hxx>
+#include <simgear/misc/ResourceManager.hxx>
+#include <simgear/props/props.hxx>
+#include <simgear/props/props_io.hxx>
+#include <simgear/scene/material/matlib.hxx>
+#include <simgear/scene/model/BVHPageNodeOSG.hxx>
+#include <simgear/scene/model/ModelRegistry.hxx>
+#include <simgear/scene/tgdb/apt_signs.hxx>
+#include <simgear/scene/tgdb/userdata.hxx>
+#include <simgear/scene/util/OptionsReadFileCallback.hxx>
+#include <simgear/scene/util/OsgMath.hxx>
+#include <simgear/scene/util/RenderConstants.hxx>
+#include <simgear/scene/util/SGReaderWriterOptions.hxx>
+
+
+namespace sg = simgear;
+
+struct _ObjectStatic {
+ _ObjectStatic() : _lon(0), _lat(0), _elev(0), _hdg(0), _pitch(0), _roll(0), _shared(false) { }
+ std::string _token;
+ std::string _name;
+ double _lon, _lat, _elev;
+ double _hdg, _pitch, _roll;
+ bool _shared;
+ osg::ref_ptr<sg::SGReaderWriterOptions> _options;
+};
+
+std::list<_ObjectStatic> _objectStaticList;
+
+sg::SGReaderWriterOptions* staticOptions(const std::string& filePath, const osgDB::Options* options)
+{
+ osg::ref_ptr<sg::SGReaderWriterOptions> staticOptions;
+ staticOptions = sg::SGReaderWriterOptions::copyOrCreate(options);
+ staticOptions->getDatabasePathList().clear();
+
+ staticOptions->getDatabasePathList().push_back(filePath);
+ staticOptions->setObjectCacheHint(osgDB::Options::CACHE_NONE);
+
+ // Every model needs its own SGModelData to ensure load/unload is
+ // working properly
+ staticOptions->setModelData
+ (
+ staticOptions->getModelData()
+ ? staticOptions->getModelData()->clone()
+ : 0
+ );
+
+ return staticOptions.release();
+}
+
+sg::SGReaderWriterOptions* sharedOptions(const std::string& filePath, const osgDB::Options* options)
+{
+ osg::ref_ptr<sg::SGReaderWriterOptions> sharedOptions;
+ sharedOptions = sg::SGReaderWriterOptions::copyOrCreate(options);
+ sharedOptions->getDatabasePathList().clear();
+
+ SGPath path = filePath;
+ path.append(".."); path.append(".."); path.append("..");
+ sharedOptions->getDatabasePathList().push_back(path.str());
+
+ // ensure Models directory synced via TerraSync is searched before the copy in
+ // FG_ROOT, so that updated models can be used.
+ std::string terrasync_root = options->getPluginStringData("SimGear::TERRASYNC_ROOT");
+ if (!terrasync_root.empty()) {
+ sharedOptions->getDatabasePathList().push_back(terrasync_root);
+ }
+
+ std::string fg_root = options->getPluginStringData("SimGear::FG_ROOT");
+ sharedOptions->getDatabasePathList().push_back(fg_root);
+
+ // TODO how should we handle this for OBJECT_SHARED?
+ sharedOptions->setModelData
+ (
+ sharedOptions->getModelData()
+ ? sharedOptions->getModelData()->clone()
+ : 0
+ );
+
+ return sharedOptions.release();
+}
+
+int
+main(int argc, char** argv)
+{
+ /// Read arguments and environment variables.
+
+ // use an ArgumentParser object to manage the program arguments.
+ osg::ArgumentParser arguments(&argc, argv);
+
+ std::string fg_root;
+ if (arguments.read("--fg-root", fg_root)) {
+ } else if (const char *fg_root_env = std::getenv("FG_ROOT")) {
+ fg_root = fg_root_env;
+ } else {
+ fg_root = PKGLIBDIR;
+ }
+
+ std::string fg_scenery;
+ if (arguments.read("--fg-scenery", fg_scenery)) {
+ } else if (const char *fg_scenery_env = std::getenv("FG_SCENERY")) {
+ fg_scenery = fg_scenery_env;
+ } else {
+ SGPath path(fg_root);
+ path.append("Scenery");
+ fg_scenery = path.str();
+ }
+
+ std::string stg;
+ if (! arguments.read("--stg", stg)) {
+ SG_LOG(SG_GENERAL, SG_ALERT, "No --stg argument");
+ return EXIT_FAILURE;
+ }
+
+ SGSharedPtr<SGPropertyNode> props = new SGPropertyNode;
+ try {
+ SGPath preferencesFile = fg_root;
+ preferencesFile.append("preferences.xml");
+ readProperties(preferencesFile.str(), props);
+ } catch (...) {
+ // In case of an error, at least make summer :)
+ props->getNode("sim/startup/season", true)->setStringValue("summer");
+
+ SG_LOG(SG_GENERAL, SG_ALERT, "Problems loading FlightGear preferences.\n"
+ << "Probably FG_ROOT is not properly set.");
+ }
+
+ /// now set up the simgears required model stuff
+
+ simgear::ResourceManager::instance()->addBasePath(fg_root, simgear::ResourceManager::PRIORITY_DEFAULT);
+ // Just reference simgears reader writer stuff so that the globals get
+ // pulled in by the linker ...
+ simgear::ModelRegistry::instance();
+
+ sgUserDataInit(props.get());
+ SGMaterialLibPtr ml = new SGMaterialLib;
+ SGPath mpath(fg_root);
+
+ // TODO: Pick up correct materials.xml file. Urrgh - this can't be runtime dependent...
+ mpath.append("Materials/default/materials.xml");
+ try {
+ ml->load(fg_root, mpath.str(), props);
+ } catch (...) {
+ SG_LOG(SG_GENERAL, SG_ALERT, "Problems loading FlightGear materials.\n"
+ << "Probably FG_ROOT is not properly set.");
+ }
+ simgear::SGModelLib::init(fg_root, props);
+
+ // Set up the reader/writer options
+ osg::ref_ptr<simgear::SGReaderWriterOptions> options;
+ if (osgDB::Options* ropt = osgDB::Registry::instance()->getOptions())
+ options = new simgear::SGReaderWriterOptions(*ropt);
+ else
+ options = new simgear::SGReaderWriterOptions;
+ osgDB::convertStringPathIntoFilePathList(fg_scenery,
+ options->getDatabasePathList());
+ options->setMaterialLib(ml);
+ options->setPropertyNode(props);
+ options->setPluginStringData("SimGear::FG_ROOT", fg_root);
+
+ // Here, all arguments are processed
+ arguments.reportRemainingOptionsAsUnrecognized();
+ arguments.writeErrorMessages(std::cerr);
+
+ // Get the STG file
+ if (stg.empty()) {
+ SG_LOG(SG_TERRAIN, SG_ALERT, "STG file empty");
+ return EXIT_FAILURE;
+ }
+
+ SG_LOG(SG_TERRAIN, SG_ALERT, "Loading stg file " << stg);
+
+ sg_gzifstream stream(stg);
+ if (!stream.is_open()) {
+ SG_LOG(SG_TERRAIN, SG_ALERT, "Unable to open STG file " << stg);
+ return EXIT_FAILURE;
+ }
+
+ // Extract the bucket from the filename
+ std::istringstream ss(osgDB::getStrippedName(stg));
+ long index;
+ ss >> index;
+ if (ss.fail()) {
+ SG_LOG(SG_TERRAIN, SG_ALERT, "Unable to determine bucket from STG filename " << ss);
+ return EXIT_FAILURE;
+ }
+
+ // Work out the transform to the center of the tile
+ SGBucket bucket = SGBucket(index);
+ osg::Matrix tile_transform;
+ tile_transform = makeZUpFrame(bucket.get_center());
+
+ // Inverse used to translate individual matrices
+ SGVec3d shift;
+ SGGeodesy::SGGeodToCart(bucket.get_center(), shift);
+
+ std::string filePath = osgDB::getFilePath(stg);
+
+ while (!stream.eof()) {
+ // read a line
+ std::string line;
+ std::getline(stream, line);
+
+ // strip comments
+ std::string::size_type hash_pos = line.find('#');
+ if (hash_pos != std::string::npos)
+ line.resize(hash_pos);
+
+ // and process further
+ std::stringstream in(line);
+
+ std::string token;
+ in >> token;
+
+ // No comment
+ if (token.empty())
+ continue;
+
+ // Then there is always a name
+ std::string name;
+ in >> name;
+
+ SGPath path = filePath;
+ path.append(name);
+
+ // The following tokens are ignored
+ // OBJECT_BASE - base scenery, not relevant
+ // OBJECT - airport BTG files
+ // OBJECT_STATIC_AGL - elevation needs to be calculated at runtime
+ // OBJECT_SHARED_AGL - elevation needs to be calculated at runtime
+ // OBJECT_SIGN - depends on materials library, which is runtime dependent
+
+ if (token == "OBJECT_STATIC") {
+ osg::ref_ptr<sg::SGReaderWriterOptions> opt;
+ opt = staticOptions(filePath, options);
+ //if (SGPath(name).lower_extension() == "ac")
+ //opt->setInstantiateEffects(true); // Is this output correctly?
+ _ObjectStatic obj;
+ obj._token = token;
+ obj._name = name;
+ in >> obj._lon >> obj._lat >> obj._elev >> obj._hdg >> obj._pitch >> obj._roll;
+ obj._shared = false;
+ obj._options = opt;
+ _objectStaticList.push_back(obj);
+ } else if (token == "OBJECT_SHARED") {
+ osg::ref_ptr<sg::SGReaderWriterOptions> opt;
+ opt = sharedOptions(filePath, options);
+ //if (SGPath(name).lower_extension() == "ac")
+ //opt->setInstantiateEffects(true); // Is this output correctly?
+ _ObjectStatic obj;
+ obj._token = token;
+ obj._name = name;
+ in >> obj._lon >> obj._lat >> obj._elev >> obj._hdg >> obj._pitch >> obj._roll;
+ obj._shared = true;
+ obj._options = opt;
+ _objectStaticList.push_back(obj);
+ } else {
+ SG_LOG( SG_TERRAIN, SG_ALERT, "Ignoring token '" << token << "'" );
+ std::cout << line << "\n";
+ }
+ }
+
+ // We now have a list of objects and signs to process.
+
+ osg::ref_ptr<osg::Group> group = new osg::Group;
+ group->setName("STG merge");
+ group->setDataVariance(osg::Object::STATIC);
+ int files_loaded = 0;
+
+ for (std::list<_ObjectStatic>::iterator i = _objectStaticList.begin(); i != _objectStaticList.end(); ++i) {
+
+ // We don't process XML files, as they typically include animations which we can't output
+ if (SGPath(i->_name).lower_extension() == "xml") {
+ //SG_LOG(SG_TERRAIN, SG_ALERT, "Ignoring non-static "
+ // << i->_token << " '" << i->_name << "'");
+ std::cout << (i->_shared ? "OBJECT_SHARED " : "OBJECT_STATIC ");
+ std::cout << i->_lon << " " << i->_lat << " " << i->_elev << " " << i->_hdg;
+ std::cout << " " << i->_pitch << i->_roll << "\n";
+ continue;
+ }
+
+ SG_LOG( SG_TERRAIN, SG_ALERT, "Processing " << i->_name);
+
+ osg::ref_ptr<osg::Node> node;
+ node = osgDB::readRefNodeFile(i->_name, i->_options.get());
+ if (!node.valid()) {
+ SG_LOG(SG_TERRAIN, SG_ALERT, stg << ": Failed to load "
+ << i->_token << " '" << i->_name << "'");
+ continue;
+ }
+ files_loaded++;
+
+ if (SGPath(i->_name).lower_extension() == "ac")
+ node->setNodeMask(~sg::MODELLIGHT_BIT);
+
+ osg::Matrix matrix;
+ matrix = makeZUpFrame(SGGeod::fromDegM(i->_lon, i->_lat, i->_elev));
+ matrix.preMultRotate(osg::Quat(SGMiscd::deg2rad(i->_hdg), osg::Vec3(0, 0, 1)));
+ matrix.preMultRotate(osg::Quat(SGMiscd::deg2rad(i->_pitch), osg::Vec3(0, 1, 0)));
+ matrix.preMultRotate(osg::Quat(SGMiscd::deg2rad(i->_roll), osg::Vec3(1, 0, 0)));
+
+ osg::MatrixTransform* matrixTransform;
+ matrixTransform = new osg::MatrixTransform(matrix);
+ matrixTransform->setName("positionStaticObject");
+ matrixTransform->setDataVariance(osg::Object::STATIC);
+ matrixTransform->addChild(node.get());
+
+ // Shift the models so they are centered on the center of the tile.
+ // We will place the object at the center of the tile later.
+ osg::Matrix unshift;
+ unshift.makeTranslate(- toOsg(shift));
+ osg::MatrixTransform* unshiftTransform = new osg::MatrixTransform();
+ unshiftTransform->addChild(matrixTransform);
+ group->addChild(unshiftTransform);
+ }
+
+ if (files_loaded == 0) {
+ // Nothing to do - no models were changed.
+
+ }
+
+ // Create a viewer - required for some Optimizers
+ osgViewer::Viewer viewer;
+ viewer.setSceneData(group.get());
+ viewer.addEventHandler(new osgViewer::StatsHandler);
+ viewer.addEventHandler(new osgViewer::WindowSizeHandler);
+ viewer.addEventHandler(
+ new osgGA::StateSetManipulator(
+ viewer.getCamera()->getOrCreateStateSet()));
+ viewer.setCameraManipulator(new osgGA::TrackballManipulator());
+ viewer.realize();
+
+ // Write out the pre-optimized version
+ osgDB::writeNodeFile(*group, "old.osgb",
+ new osgDB::Options("WriteImageHint=IncludeData Compressor=zlib"));
+
+ // Run the Optimizer
+ osgUtil::Optimizer optimizer;
+ optimizer.optimize( group, osgUtil::Optimizer::ALL_OPTIMIZATIONS );
+
+ // Serialize the result as a binary OSG file, including textures:
+ osgDB::writeNodeFile(*group, "new.osgb",
+ new osgDB::Options("WriteImageHint=IncludeData Compressor=zlib"));
+
+ // Write out the required STG entry for this merged set of objects, centered
+ // on the center of the tile.
+ std::cout << "Files loaded " << files_loaded << "\n";
+ std::cout << "OBJECT_STATIC static.osgb "
+ << bucket.get_center_lon() << " "
+ << bucket.get_center_lat() << "0.0 0.0 0.0 0.0\n";
+
+ viewer.run();
+ return EXIT_SUCCESS;
+}
projects / flightgear.git / commitdiff