207 lines
7.9 KiB
C++
207 lines
7.9 KiB
C++
// fgviewer.cxx -- alternative flightgear viewer application
|
|
//
|
|
// Copyright (C) 2009 - 2011 Mathias Froehlich
|
|
//
|
|
// 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 <osg/ArgumentParser>
|
|
#include <osg/Fog>
|
|
#include <osgDB/ReadFile>
|
|
#include <osgViewer/Viewer>
|
|
#include <osgViewer/ViewerEventHandlers>
|
|
#include <osgViewer/Renderer>
|
|
#include <osgGA/KeySwitchMatrixManipulator>
|
|
#include <osgGA/StateSetManipulator>
|
|
#include <osgGA/TrackballManipulator>
|
|
#include <osgGA/FlightManipulator>
|
|
#include <osgGA/DriveManipulator>
|
|
#include <osgGA/TerrainManipulator>
|
|
|
|
#include <simgear/props/props.hxx>
|
|
#include <simgear/props/props_io.hxx>
|
|
#include <simgear/misc/sg_path.hxx>
|
|
#include <simgear/scene/material/EffectCullVisitor.hxx>
|
|
#include <simgear/scene/material/matlib.hxx>
|
|
#include <simgear/scene/util/SGReaderWriterOptions.hxx>
|
|
#include <simgear/scene/util/SGSceneFeatures.hxx>
|
|
#include <simgear/scene/util/SGUpdateVisitor.hxx>
|
|
#include <simgear/scene/tgdb/userdata.hxx>
|
|
#include <simgear/scene/model/ModelRegistry.hxx>
|
|
#include <simgear/scene/model/modellib.hxx>
|
|
|
|
int
|
|
main(int argc, char** argv)
|
|
{
|
|
// 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();
|
|
}
|
|
|
|
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");
|
|
|
|
std::cerr << "Problems loading FlightGear preferences.\n"
|
|
<< "Probably FG_ROOT is not properly set." << std::endl;
|
|
}
|
|
|
|
std::string config;
|
|
while (arguments.read("--config", config)) {
|
|
try {
|
|
readProperties(config, props);
|
|
} catch (...) {
|
|
std::cerr << "Problems loading config file \"" << config
|
|
<< "\" given on the command line." << std::endl;
|
|
}
|
|
}
|
|
|
|
std::string prop, value;
|
|
while (arguments.read("--prop", prop, value)) {
|
|
props->setStringValue(prop, value);
|
|
}
|
|
|
|
// Just reference simgears reader writer stuff so that the globals get
|
|
// pulled in by the linker ...
|
|
// FIXME: make that more explicit clear and call an initialization function
|
|
simgear::ModelRegistry::instance();
|
|
|
|
// construct the viewer.
|
|
osgViewer::Viewer viewer(arguments);
|
|
|
|
// set up the camera manipulators.
|
|
osgGA::KeySwitchMatrixManipulator* keyswitchManipulator;
|
|
keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
|
|
|
|
keyswitchManipulator->addMatrixManipulator('1', "Trackball",
|
|
new osgGA::TrackballManipulator);
|
|
keyswitchManipulator->addMatrixManipulator('2', "Flight",
|
|
new osgGA::FlightManipulator);
|
|
keyswitchManipulator->addMatrixManipulator('3', "Drive",
|
|
new osgGA::DriveManipulator);
|
|
keyswitchManipulator->addMatrixManipulator('4', "Terrain",
|
|
new osgGA::TerrainManipulator);
|
|
|
|
viewer.setCameraManipulator(keyswitchManipulator);
|
|
|
|
// Usefull stats
|
|
viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));
|
|
viewer.addEventHandler(new osgViewer::HelpHandler);
|
|
viewer.addEventHandler(new osgViewer::StatsHandler);
|
|
viewer.addEventHandler(new osgViewer::ThreadingHandler);
|
|
viewer.addEventHandler(new osgViewer::LODScaleHandler);
|
|
viewer.addEventHandler(new osgViewer::ScreenCaptureHandler);
|
|
viewer.addEventHandler(new osgViewer::WindowSizeHandler);
|
|
|
|
// Sigh, we need our own cull visitor ...
|
|
osg::Camera* camera = viewer.getCamera();
|
|
osgViewer::Renderer* renderer = static_cast<osgViewer::Renderer*>(camera->getRenderer());
|
|
for (int j = 0; j < 2; ++j) {
|
|
osgUtil::SceneView* sceneView = renderer->getSceneView(j);
|
|
sceneView->setCullVisitor(new simgear::EffectCullVisitor);
|
|
}
|
|
// Shaders expect valid fog
|
|
osg::Fog* fog = new osg::Fog;
|
|
fog->setMode(osg::Fog::EXP2);
|
|
fog->setColor(osg::Vec4(1, 1, 1, 1));
|
|
fog->setDensity(1e-6);
|
|
camera->getOrCreateStateSet()->setAttribute(fog);
|
|
|
|
sgUserDataInit(props.get());
|
|
SGSceneFeatures::instance()->setTextureCompression(SGSceneFeatures::DoNotUseCompression);
|
|
SGMaterialLib* ml = new SGMaterialLib;
|
|
SGPath mpath(fg_root);
|
|
mpath.append("materials.xml");
|
|
try {
|
|
ml->load(fg_root, mpath.str(), props);
|
|
} catch (...) {
|
|
std::cerr << "Problems loading FlightGear materials.\n"
|
|
<< "Probably FG_ROOT is not properly set." << std::endl;
|
|
}
|
|
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);
|
|
// We have some problems here, rethink them at some time
|
|
options->setPluginStringData("SimGear::PARTICLESYSTEM", "OFF");
|
|
// Omit building bounding volume trees, as the viewer will not run a simulation
|
|
options->setPluginStringData("SimGear::BOUNDINGVOLUMES", "OFF");
|
|
|
|
// Here, all arguments are processed
|
|
arguments.reportRemainingOptionsAsUnrecognized();
|
|
arguments.writeErrorMessages(std::cerr);
|
|
|
|
osg::ref_ptr<osg::Node> loadedModel;
|
|
if (arguments.argc() != 1) {
|
|
// read the scene from the list of file specified command line args.
|
|
loadedModel = osgDB::readNodeFiles(arguments, options.get());
|
|
} else {
|
|
// if no arguments given resort to the whole world scenery
|
|
options->setPluginStringData("SimGear::FG_EARTH", "ON");
|
|
loadedModel = osgDB::readNodeFile("w180s90-360x180.spt", options.get());
|
|
}
|
|
|
|
// if no model has been successfully loaded report failure.
|
|
if (!loadedModel.valid()) {
|
|
std::cerr << arguments.getApplicationName()
|
|
<< ": No data loaded" << std::endl;
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
// pass the loaded scene graph to the viewer.
|
|
viewer.setSceneData(loadedModel.get());
|
|
|
|
// We want on demand database paging
|
|
viewer.setDatabasePager(new osgDB::DatabasePager);
|
|
viewer.getDatabasePager()->setUpThreads(1, 1);
|
|
|
|
return viewer.run();
|
|
}
|