314 lines
13 KiB
C++
314 lines
13 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
|
|
*
|
|
* This application is open source and may be redistributed and/or modified
|
|
* freely and without restriction, both in commericial and non commericial applications,
|
|
* as long as this copyright notice is maintained.
|
|
*
|
|
* This application 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.
|
|
*/
|
|
|
|
#include <osgDB/ReadFile>
|
|
#include <osgUtil/Optimizer>
|
|
#include <osg/CoordinateSystemNode>
|
|
|
|
#include <osg/Switch>
|
|
#include <osgText/Text>
|
|
|
|
#include <osgViewer/Viewer>
|
|
#include <osgViewer/StatsHandler>
|
|
#include <osgViewer/HelpHandler>
|
|
|
|
#include <osgGA/TrackballManipulator>
|
|
#include <osgGA/FlightManipulator>
|
|
#include <osgGA/DriveManipulator>
|
|
#include <osgGA/KeySwitchMatrixManipulator>
|
|
#include <osgGA/StateSetManipulator>
|
|
#include <osgGA/AnimationPathManipulator>
|
|
#include <osgGA/TerrainManipulator>
|
|
|
|
#include <iostream>
|
|
|
|
class ThreadingHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
ThreadingHandler() {}
|
|
|
|
bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa)
|
|
{
|
|
osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>(&aa);
|
|
if (!viewer) return false;
|
|
|
|
switch(ea.getEventType())
|
|
{
|
|
case(osgGA::GUIEventAdapter::KEYUP):
|
|
{
|
|
if (ea.getKey()=='m')
|
|
{
|
|
switch(viewer->getThreadingModel())
|
|
{
|
|
case(osgViewer::Viewer::SingleThreaded):
|
|
viewer->setThreadingModel(osgViewer::Viewer::CullDrawThreadPerContext);
|
|
osg::notify(osg::NOTICE)<<"Threading model 'CullDrawThreadPerContext' selected."<<std::endl;
|
|
break;
|
|
case(osgViewer::Viewer::CullDrawThreadPerContext):
|
|
viewer->setThreadingModel(osgViewer::Viewer::DrawThreadPerContext);
|
|
osg::notify(osg::NOTICE)<<"Threading model 'DrawThreadPerContext' selected."<<std::endl;
|
|
break;
|
|
case(osgViewer::Viewer::DrawThreadPerContext):
|
|
viewer->setThreadingModel(osgViewer::Viewer::CullThreadPerCameraDrawThreadPerContext);
|
|
osg::notify(osg::NOTICE)<<"Threading model 'CullThreadPerCameraDrawThreadPerContext' selected."<<std::endl;
|
|
break;
|
|
case(osgViewer::Viewer::CullThreadPerCameraDrawThreadPerContext):
|
|
viewer->setThreadingModel(osgViewer::Viewer::SingleThreaded);
|
|
osg::notify(osg::NOTICE)<<"Threading model 'SingleThreaded' selected."<<std::endl;
|
|
break;
|
|
case(osgViewer::Viewer::AutomaticSelection):
|
|
viewer->setThreadingModel(viewer->suggestBestThreadingModel());
|
|
osg::notify(osg::NOTICE)<<"Threading model 'AutomaticSelection' selected."<<std::endl;
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
if (ea.getKey()=='e')
|
|
{
|
|
switch(viewer->getEndBarrierPosition())
|
|
{
|
|
case(osgViewer::Viewer::BeforeSwapBuffers):
|
|
viewer->setEndBarrierPosition(osgViewer::Viewer::AfterSwapBuffers);
|
|
osg::notify(osg::NOTICE)<<"Threading model 'AfterSwapBuffers' selected."<<std::endl;
|
|
break;
|
|
case(osgViewer::Viewer::AfterSwapBuffers):
|
|
viewer->setEndBarrierPosition(osgViewer::Viewer::BeforeSwapBuffers);
|
|
osg::notify(osg::NOTICE)<<"Threading model 'BeforeSwapBuffers' selected."<<std::endl;
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
default: break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/** Get the keyboard and mouse usage of this manipulator.*/
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const
|
|
{
|
|
usage.addKeyboardMouseBinding("m","Toggle threading model.");
|
|
usage.addKeyboardMouseBinding("e","Toggle the placement of the end of frame barrier.");
|
|
}
|
|
|
|
|
|
|
|
bool _done;
|
|
};
|
|
|
|
|
|
class FullScreenToggleHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
FullScreenToggleHandler() {}
|
|
|
|
bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa)
|
|
{
|
|
osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>(&aa);
|
|
if (!viewer) return false;
|
|
|
|
switch(ea.getEventType())
|
|
{
|
|
case(osgGA::GUIEventAdapter::KEYUP):
|
|
{
|
|
if (ea.getKey()=='f')
|
|
{
|
|
osgViewer::Viewer::Windows windows;
|
|
viewer->getWindows(windows);
|
|
|
|
for(osgViewer::Viewer::Windows::iterator itr = windows.begin();
|
|
itr != windows.end();
|
|
++itr)
|
|
{
|
|
toggleFullscreen(*itr);
|
|
}
|
|
}
|
|
}
|
|
default: break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/** Get the keyboard and mouse usage of this manipulator.*/
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const
|
|
{
|
|
usage.addKeyboardMouseBinding("f","Toggle full screen.");
|
|
}
|
|
|
|
|
|
void toggleFullscreen(osgViewer::GraphicsWindow* window)
|
|
{
|
|
|
|
osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface();
|
|
if (!wsi)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Error, no WindowSystemInterface available, cannot toggle window fullscreen."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
unsigned int screen_width, screen_height;
|
|
wsi->getScreenResolution(*(window->getTraits()), screen_width, screen_height);
|
|
|
|
int x, y, width, height;
|
|
window->getWindowRectangle(x, y, width, height);
|
|
|
|
bool isFullScreen = x==0 && y==0 && width==screen_width && height==screen_height;
|
|
if (isFullScreen)
|
|
{
|
|
window->setWindowRectangle(screen_width/4, screen_height/4, screen_width/2, screen_height/2);
|
|
window->setWindowDecoration(true);
|
|
}
|
|
else
|
|
{
|
|
window->setWindowDecoration(false);
|
|
window->setWindowRectangle(0, 0, screen_width, screen_height);
|
|
}
|
|
|
|
window->grabFocusIfPointerInWindow();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool _done;
|
|
};
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
// use an ArgumentParser object to manage the program arguments.
|
|
osg::ArgumentParser arguments(&argc,argv);
|
|
|
|
arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
|
|
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the standard OpenSceneGraph example which loads and visualises 3d models.");
|
|
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--image <filename>","Load an image and render it on a quad");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--dem <filename>","Load an image/DEM and render it on a HeightField");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display command line parameters");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--help-env","Display environmental variables available");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--help-keys","Display keyboard & mouse bindings available");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--help-all","Display all command line, env vars and keyboard & mouse bindings.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--SingleThreaded","Select SingleThreaded threading model for viewer.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--CullDrawThreadPerContext","Select CullDrawThreadPerContext threading model for viewer.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--DrawThreadPerContext","Select DrawThreadPerContext threading model for viewer.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--CullThreadPerCameraDrawThreadPerContext","Select CullThreadPerCameraDrawThreadPerContext threading model for viewer.");
|
|
|
|
// if user request help write it out to cout.
|
|
bool helpAll = arguments.read("--help-all");
|
|
unsigned int helpType = ((helpAll || arguments.read("-h") || arguments.read("--help"))? osg::ApplicationUsage::COMMAND_LINE_OPTION : 0 ) |
|
|
((helpAll || arguments.read("--help-env"))? osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE : 0 ) |
|
|
((helpAll || arguments.read("--help-keys"))? osg::ApplicationUsage::KEYBOARD_MOUSE_BINDING : 0 );
|
|
if (helpType)
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout, helpType);
|
|
return 1;
|
|
}
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
if (arguments.argc()<=1)
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
|
|
return 1;
|
|
}
|
|
|
|
osgViewer::Viewer viewer;
|
|
|
|
// set up the camera manipulators.
|
|
{
|
|
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> 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() );
|
|
|
|
std::string pathfile;
|
|
char keyForAnimationPath = '5';
|
|
while (arguments.read("-p",pathfile))
|
|
{
|
|
osgGA::AnimationPathManipulator* apm = new osgGA::AnimationPathManipulator(pathfile);
|
|
if (apm || !apm->valid())
|
|
{
|
|
unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
|
|
keyswitchManipulator->addMatrixManipulator( keyForAnimationPath, "Path", apm );
|
|
keyswitchManipulator->selectMatrixManipulator(num);
|
|
++keyForAnimationPath;
|
|
}
|
|
}
|
|
|
|
viewer.setCameraManipulator( keyswitchManipulator.get() );
|
|
}
|
|
|
|
// add the state manipulator
|
|
viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
|
|
|
|
// add the thread model handler
|
|
viewer.addEventHandler(new ThreadingHandler);
|
|
|
|
// add the full screen toggle handler
|
|
viewer.addEventHandler(new FullScreenToggleHandler);
|
|
|
|
// add the stats handler
|
|
viewer.addEventHandler(new osgViewer::StatsHandler);
|
|
|
|
// add the help handler
|
|
viewer.addEventHandler(new osgViewer::HelpHandler(arguments.getApplicationUsage()));
|
|
|
|
while (arguments.read("--SingleThreaded")) viewer.setThreadingModel(osgViewer::Viewer::SingleThreaded);
|
|
while (arguments.read("--CullDrawThreadPerContext")) viewer.setThreadingModel(osgViewer::Viewer::CullDrawThreadPerContext);
|
|
while (arguments.read("--DrawThreadPerContext")) viewer.setThreadingModel(osgViewer::Viewer::DrawThreadPerContext);
|
|
while (arguments.read("--CullThreadPerCameraDrawThreadPerContext")) viewer.setThreadingModel(osgViewer::Viewer::CullThreadPerCameraDrawThreadPerContext);
|
|
|
|
unsigned int screenNum;
|
|
while (arguments.read("--screen",screenNum))
|
|
{
|
|
viewer.setUpViewOnSingleScreen(screenNum);
|
|
}
|
|
|
|
// load the data
|
|
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
|
|
if (!loadedModel)
|
|
{
|
|
std::cout << arguments.getApplicationName() <<": No data loaded" << std::endl;
|
|
return 1;
|
|
}
|
|
|
|
// any option left unread are converted into errors to write out later.
|
|
arguments.reportRemainingOptionsAsUnrecognized();
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
|
|
// optimize the scene graph, remove redundant nodes and state etc.
|
|
osgUtil::Optimizer optimizer;
|
|
optimizer.optimize(loadedModel.get());
|
|
|
|
viewer.setSceneData( loadedModel.get() );
|
|
|
|
return viewer.run();
|
|
}
|