Get fgviewer working as a part of fgfs
Move fgviewer code into fgfs binary. Its osgViewer-style main function is called from bootstrap.cxx if the --fgviewer argument is passed to fgfs. Use fgfs initialization functions in fgviewer codepath. Read command-line arguments and autosave.xml.
This commit is contained in:
timoore
Tim Moore
parent
bb2e5fb2c9
commit
3bce312213
6 changed files with 277 additions and 1 deletions
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@ -1876,6 +1876,13 @@
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<File
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RelativePath="..\..\src\Main\fg_props.hxx">
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</File>
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<File
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RelativePath="..\..\src\Main\fgviewer.cxx">
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</File>
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<File
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RelativePath="..\..\src\Main\fgviewer.hxx">
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</File>
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<File
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RelativePath="..\..\src\Main\FGEventHandler.cxx">
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</File>
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@ -40,6 +40,7 @@ noinst_LIBRARIES = libMain.a
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libMain_a_SOURCES = \
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main.cxx main.hxx \
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renderer.cxx renderer.hxx \
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fgviewer.cxx fgviewer.hxx \
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fg_commands.cxx fg_commands.hxx \
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fg_init.cxx fg_init.hxx \
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fg_io.cxx fg_io.hxx \
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@ -51,6 +51,7 @@ using std::endl;
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#include "main.hxx"
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#include "globals.hxx"
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#include "fgviewer.hxx"
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#include "fg_os.hxx"
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@ -208,13 +209,23 @@ int main ( int argc, char **argv ) {
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#if defined( HAVE_BC5PLUS )
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_control87(MCW_EM, MCW_EM); /* defined in float.h */
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#endif
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bool fgviewer = false;
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for (int i = 0; i < argc; ++i) {
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if (!strcmp("--fgviewer", argv[i])) {
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fgviewer = true;
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break;
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}
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}
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// FIXME: add other, more specific
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// exceptions.
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try {
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std::set_terminate(fg_terminate);
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atexit(fgExitCleanup);
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fgMainInit(argc, argv);
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if (fgviewer)
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fgviewerMain(argc, argv);
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else
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fgMainInit(argc, argv);
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} catch (const sg_throwable &t) {
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// We must use cerr rather than
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// logging, since logging may be
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242
src/Main/fgviewer.cxx
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242
src/Main/fgviewer.cxx
Normal file
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@ -0,0 +1,242 @@
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#include <iostream>
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#include <cstdlib>
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#include <osg/ArgumentParser>
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#include <osg/Fog>
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#include <osgDB/ReadFile>
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#include <osgDB/Registry>
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#include <osgDB/WriteFile>
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#include <osgViewer/Renderer>
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#include <osgViewer/Viewer>
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#include <osgViewer/ViewerEventHandlers>
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#include <osgGA/KeySwitchMatrixManipulator>
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#include <osgGA/TrackballManipulator>
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#include <osgGA/FlightManipulator>
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#include <osgGA/DriveManipulator>
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#include <osgGA/TerrainManipulator>
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#include <osgGA/StateSetManipulator>
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#include <simgear/props/props.hxx>
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#include <simgear/props/props_io.hxx>
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#include <simgear/misc/sg_path.hxx>
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#include <simgear/scene/material/EffectCullVisitor.hxx>
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#include <simgear/scene/material/matlib.hxx>
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#include <simgear/scene/tgdb/SGReaderWriterBTGOptions.hxx>
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#include <simgear/scene/tgdb/userdata.hxx>
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#include <simgear/scene/tgdb/TileEntry.hxx>
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#include <simgear/scene/model/ModelRegistry.hxx>
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#include <simgear/scene/model/modellib.hxx>
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#include <Scenery/scenery.hxx>
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#include "fg_init.hxx"
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#include "fg_props.hxx"
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#include "globals.hxx"
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#include "options.hxx"
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class DummyLoadHelper : public simgear::ModelLoadHelper {
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public:
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virtual osg::Node *loadTileModel(const string& modelPath, bool)
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{
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try {
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SGSharedPtr<SGPropertyNode> prop = new SGPropertyNode;
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return simgear::SGModelLib::loadModel(modelPath, prop);
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} catch (...) {
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std::cerr << "Error loading \"" << modelPath << "\"" << std::endl;
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return 0;
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}
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}
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};
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class GraphDumpHandler : public osgGA::GUIEventHandler
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{
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public:
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GraphDumpHandler() : _keyDump('d') {}
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void setKeyDump(int key) { _keyDump = key; }
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int getKeyDump() const { return _keyDump; }
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bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa);
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/** Get the keyboard and mouse usage of this manipulator.*/
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virtual void getUsage(osg::ApplicationUsage& usage) const;
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protected:
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int _keyDump;
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};
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static void dumpOut(osg::Node* node)
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{
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char filename[24];
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static int count = 1;
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FGRenderer *renderer = globals->get_renderer();
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while (count < 1000) {
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FILE *fp;
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snprintf(filename, 24, "fgviewer-%03d.osg", count++);
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if ( (fp = fopen(filename, "r")) == NULL )
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break;
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fclose(fp);
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}
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if (osgDB::writeNodeFile(*node, filename))
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std::cerr << "Entire scene graph saved to \"" << filename << "\".\n";
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else
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std::cerr << "Failed to save to \"" << filename << "\".\n";
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}
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bool GraphDumpHandler::handle(const osgGA::GUIEventAdapter& ea,
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osgGA::GUIActionAdapter& aa)
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{
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osgViewer::View* view = dynamic_cast<osgViewer::View*>(&aa);
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if (!view)
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return false;
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if (ea.getHandled())
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return false;
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switch(ea.getEventType()) {
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case osgGA::GUIEventAdapter::KEYUP:
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if (ea.getKey() == _keyDump) {
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dumpOut(view->getScene()->getSceneData());
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return true;
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}
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break;
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default:
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return false;
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}
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}
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void GraphDumpHandler::getUsage(osg::ApplicationUsage& usage) const
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{
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std::ostringstream ostr;
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ostr << char(_keyDump);
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usage.addKeyboardMouseBinding(ostr.str(),
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"Dump scene graph to file");
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}
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int
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fgviewerMain(int argc, char** argv)
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{
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sgUserDataInit(0);
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DummyLoadHelper dummyLoadHelper;
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simgear::TileEntry::setModelLoadHelper(&dummyLoadHelper);
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// use an ArgumentParser object to manage the program arguments.
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osg::ArgumentParser arguments(&argc, argv);
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// construct the viewer.
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osgViewer::Viewer viewer(arguments);
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osg::Camera* camera = viewer.getCamera();
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osgViewer::Renderer* renderer
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= static_cast<osgViewer::Renderer*>(camera->getRenderer());
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for (int i = 0; i < 2; ++i) {
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osgUtil::SceneView* sceneView = renderer->getSceneView(i);
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sceneView->setCullVisitor(new simgear::EffectCullVisitor);
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}
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// Shaders expect valid fog
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osg::StateSet* cameraSS = camera->getOrCreateStateSet();
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osg::Fog* fog = new osg::Fog;
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fog->setMode(osg::Fog::EXP2);
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fog->setColor(osg::Vec4(1.0, 1.0, 1.0, 1.0));
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fog->setDensity(.0000001);
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cameraSS->setAttributeAndModes(fog);
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// ... for some reason, get rid of that FIXME!
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viewer.setThreadingModel(osgViewer::Viewer::SingleThreaded);
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// set up the camera manipulators.
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osgGA::KeySwitchMatrixManipulator* keyswitchManipulator;
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keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
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osgGA::MatrixManipulator* mm = new osgGA::TrackballManipulator;
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keyswitchManipulator->addMatrixManipulator('1', "Trackball", mm);
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mm = new osgGA::FlightManipulator;
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keyswitchManipulator->addMatrixManipulator('2', "Flight", mm);
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mm = new osgGA::DriveManipulator;
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keyswitchManipulator->addMatrixManipulator('3', "Drive", mm);
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mm = new osgGA::TerrainManipulator;
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keyswitchManipulator->addMatrixManipulator('4', "Terrain", mm);
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viewer.setCameraManipulator(keyswitchManipulator);
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// Usefull stats
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viewer.addEventHandler(new osgViewer::HelpHandler);
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viewer.addEventHandler(new osgViewer::StatsHandler);
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viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
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// Same FIXME ...
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// viewer.addEventHandler(new osgViewer::ThreadingHandler);
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viewer.addEventHandler(new osgViewer::LODScaleHandler);
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viewer.addEventHandler(new osgViewer::ScreenCaptureHandler);
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viewer.addEventHandler(new GraphDumpHandler);
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// Extract files to load from arguments now; this way fgInitConfig
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// won't choke on them.
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string_list dataFiles;
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for (int i = arguments.argc() - 1; i >= 0; --i) {
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if (arguments.isOption(i)) {
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break;
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} else {
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dataFiles.insert(dataFiles.begin(), arguments[i]);
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arguments.remove(i);
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}
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}
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// A subset of full flightgear initialization.
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// Allocate global data structures. This needs to happen before
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// we parse command line options
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globals = new FGGlobals;
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fgInitFGRoot(arguments.argc(), arguments.argv());
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if ( !fgInitConfig(arguments.argc(), arguments.argv()) ) {
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SG_LOG( SG_GENERAL, SG_ALERT, "Config option parsing failed ..." );
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exit(-1);
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}
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osgDB::FilePathList filePathList
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= osgDB::Registry::instance()->getDataFilePathList();
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filePathList.push_back(globals->get_fg_root());
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string_list path_list = globals->get_fg_scenery();
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for (unsigned i = 0; i < path_list.size(); ++i) {
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filePathList.push_back(path_list[i]);
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}
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globals->set_matlib( new SGMaterialLib );
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simgear::SGModelLib::init(globals->get_fg_root());
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// Initialize the material property subsystem.
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SGPath mpath( globals->get_fg_root() );
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mpath.append( "materials.xml" );
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if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(),
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globals->get_props()) ) {
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SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
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exit(-1);
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}
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globals->set_scenery( new FGScenery );
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globals->get_scenery()->init();
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globals->get_scenery()->bind();
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// The file path list must be set in the registry.
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osgDB::Registry::instance()->getDataFilePathList() = filePathList;
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SGReaderWriterBTGOptions* btgOptions = new SGReaderWriterBTGOptions;
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btgOptions->getDatabasePathList() = filePathList;
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btgOptions->setMatlib(globals->get_matlib());
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// read the scene from the list of file specified command line args.
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osg::ref_ptr<osg::Node> loadedModel;
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loadedModel = osgDB::readNodeFiles(dataFiles, btgOptions);
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// if no model has been successfully loaded report failure.
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if (!loadedModel.valid()) {
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std::cerr << arguments.getApplicationName()
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<< ": No data loaded" << std::endl;
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return EXIT_FAILURE;
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}
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// pass the loaded scene graph to the viewer.
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viewer.setSceneData(loadedModel.get());
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return viewer.run();
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}
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5
src/Main/fgviewer.hxx
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5
src/Main/fgviewer.hxx
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@ -0,0 +1,5 @@
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#ifndef __FG_FGVIEWER_HXX
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#define __FG_FGVIEWER_HXX 1
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int fgviewerMain(int argc, char** argv);
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#endif
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@ -1207,6 +1207,15 @@ fgOptFpe(const char* arg)
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return FG_OPTIONS_OK;
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}
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static int
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fgOptFgviewer(const char* arg)
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{
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// Actually handled in bootstrap.cxx
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return FG_OPTIONS_OK;
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}
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static map<string,size_t> fgOptionMap;
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/*
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@ -1417,6 +1426,7 @@ struct OptionDesc {
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{"parking-id", true, OPTION_FUNC, "", false, "", fgOptParking },
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{"version", false, OPTION_FUNC, "", false, "", fgOptVersion },
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{"enable-fpe", false, OPTION_FUNC, "", false, "", fgOptFpe},
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{"fgviewer", false, OPTION_FUNC, "", false, "", fgOptFgviewer},
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{0}
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};
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