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OpenSceneGraph/applications/present3D/present3D.cpp
Robert Osfield 6a67be2e32 Introduced CMake option OSG_PROVIDE_READFILE option that defaults to ON, but when switched to OFF disables the building of the osgDB::read*File() methods, 
forcing users to use osgDB::readRef*File() methods.  The later is preferable as it closes a potential threading bug when using paging databases in conjunction
with the osgDB::Registry Object Cache.  This threading bug occurs when one thread gets an object from the Cache via an osgDB::read*File() call where only
a pointer to the object is passed back, so taking a reference to the object is delayed till it gets reassigned to a ref_ptr<>, but at the same time another
thread calls a flush of the Object Cache deleting this object as it's referenceCount is now zero.  Using osgDB::readREf*File() makes sure the a ref_ptr<> is
passed back and the referenceCount never goes to zero.

To ensure the OSG builds when OSG_PROVIDE_READFILE is to OFF the many cases of osgDB::read*File() usage had to be replaced with a ref_ptr<> osgDB::readRef*File()
usage.  The avoid this change causing lots of other client code to be rewritten to handle the use of ref_ptr<> in place of C pointer I introduced a serious of
templte methods in various class to adapt ref_ptr<> to the underly C pointer to be passed to old OSG API's, example of this is found in include/osg/Group:

    bool addChild(Node* child); // old method which can only be used with a Node*

    tempalte<class T> bool addChild(const osg::ref_ptr<T>& child) { return addChild(child.get()); } // adapter template method

These changes together cover 149 modified files, so it's a large submission. This extent of changes are warrent to make use of the Object Cache
and multi-threaded loaded more robust.



git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/branches/OpenSceneGraph-3.4@15165 16af8721-9629-0410-8352-f15c8da7e697
2015-10-22 14:14:53 +00:00

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/* -*-c++-*- Present3D - Copyright (C) 1999-2006 Robert Osfield
*
* This software is open source and may be redistributed and/or modified under
* the terms of the GNU General Public License (GPL) version 2.0.
* The full license is in LICENSE.txt file included with this distribution,.
*
* This software 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
* include LICENSE.txt for more details.
*/
#include <osg/Geometry>
#include <osg/Texture2D>
#include <osg/AutoTransform>
#include <osg/Notify>
#include <osg/io_utils>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <osgDB/FileNameUtils>
#include <osgUtil/Optimizer>
#include <osgViewer/Viewer>
#include <osgViewer/ViewerEventHandlers>
#include <OpenThreads/Thread>
#include <osgGA/GUIEventHandler>
#include <osgGA/TrackballManipulator>
#include <osgGA/FlightManipulator>
#include <osgGA/DriveManipulator>
#include <osgGA/KeySwitchMatrixManipulator>
#include <osgGA/AnimationPathManipulator>
#include <osgGA/TerrainManipulator>
#include <osgGA/AnimationPathManipulator>
#include <osgGA/StateSetManipulator>
#include <osgGA/MultiTouchTrackballManipulator>
#include <osgPresentation/SlideEventHandler>
#include <osgPresentation/Cursor>
#include "ReadShowFile.h"
#include "PointsEventHandler.h"
#include "Cluster.h"
#include "ExportHTML.h"
#include "SpellChecker.h"
#include <sstream>
#include <fstream>
#include <iostream>
#include <string.h>
#ifdef USE_SDL
#include "SDLIntegration.h"
#endif
#ifdef OSG_LIBRARY_STATIC
// include the plugins we need
USE_OSGPLUGIN(ive)
USE_OSGPLUGIN(osg)
USE_OSGPLUGIN(osg2)
USE_OSGPLUGIN(p3d)
USE_OSGPLUGIN(paths)
USE_OSGPLUGIN(rgb)
USE_OSGPLUGIN(OpenFlight)
USE_OSGPLUGIN(obj)
#ifdef USE_FREETYPE
USE_OSGPLUGIN(freetype)
#endif
#ifdef USE_PNG
USE_OSGPLUGIN(png)
#endif
#ifdef USE_JPEG
USE_OSGPLUGIN(jpeg)
#endif
#ifdef USE_FFMPEG
USE_OSGPLUGIN(ffmpeg)
#endif
#ifdef USE_POPPLER_CAIRO
USE_OSGPLUGIN(pdf)
#endif
#ifdef USE_CURL
USE_OSGPLUGIN(curl)
#endif
USE_DOTOSGWRAPPER_LIBRARY(osg)
USE_DOTOSGWRAPPER_LIBRARY(osgFX)
USE_DOTOSGWRAPPER_LIBRARY(osgParticle)
USE_DOTOSGWRAPPER_LIBRARY(osgShadow)
USE_DOTOSGWRAPPER_LIBRARY(osgSim)
USE_DOTOSGWRAPPER_LIBRARY(osgTerrain)
USE_DOTOSGWRAPPER_LIBRARY(osgText)
USE_DOTOSGWRAPPER_LIBRARY(osgViewer)
USE_DOTOSGWRAPPER_LIBRARY(osgVolume)
USE_DOTOSGWRAPPER_LIBRARY(osgWidget)
USE_SERIALIZER_WRAPPER_LIBRARY(osg)
USE_SERIALIZER_WRAPPER_LIBRARY(osgAnimation)
USE_SERIALIZER_WRAPPER_LIBRARY(osgFX)
USE_SERIALIZER_WRAPPER_LIBRARY(osgManipulator)
USE_SERIALIZER_WRAPPER_LIBRARY(osgParticle)
USE_SERIALIZER_WRAPPER_LIBRARY(osgShadow)
USE_SERIALIZER_WRAPPER_LIBRARY(osgSim)
USE_SERIALIZER_WRAPPER_LIBRARY(osgTerrain)
USE_SERIALIZER_WRAPPER_LIBRARY(osgText)
USE_SERIALIZER_WRAPPER_LIBRARY(osgVolume)
// include the platform specific GraphicsWindow implementation.
USE_GRAPHICSWINDOW()
#endif
static const char* s_version = "1.4 beta";
void setViewer(osgViewer::Viewer& viewer, float width, float height, float distance)
{
double vfov = osg::RadiansToDegrees(atan2(height/2.0f,distance)*2.0);
// double hfov = osg::RadiansToDegrees(atan2(width/2.0f,distance)*2.0);
viewer.getCamera()->setProjectionMatrixAsPerspective( vfov, width/height, 0.1, 1000.0);
OSG_INFO<<"setProjectionMatrixAsPerspective( "<<vfov<<", "<<width/height<<", "<<0.1<<", "<<1000.0<<");"<<std::endl;
}
class ForwardToDeviceEventHandler : public osgGA::GUIEventHandler {
public:
ForwardToDeviceEventHandler(osgGA::Device* device, bool format_mouse_events) : osgGA::GUIEventHandler(), _device(device), _forwardMouseEvents(format_mouse_events) {}
virtual bool handle (const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa, osg::Object *, osg::NodeVisitor *)
{
switch (ea.getEventType())
{
case osgGA::GUIEventAdapter::PUSH:
case osgGA::GUIEventAdapter::RELEASE:
case osgGA::GUIEventAdapter::MOVE:
case osgGA::GUIEventAdapter::DRAG:
case osgGA::GUIEventAdapter::SCROLL:
if (_forwardMouseEvents)
_device->sendEvent(ea);
break;
default:
_device->sendEvent(ea);
break;
}
return false;
}
bool handle(osgGA::Event* event, osg::Object* object, osg::NodeVisitor* nv)
{
if (event->asGUIEventAdapter())
return osgGA::GUIEventHandler::handle(event, object, nv);
else
{
_device->sendEvent(*event);
return false;
}
}
private:
osg::ref_ptr<osgGA::Device> _device;
bool _forwardMouseEvents;
};
class DumpEventHandler : public osgGA::GUIEventHandler {
public:
DumpEventHandler() : osgGA::GUIEventHandler() {}
virtual bool handle (const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa, osg::Object *, osg::NodeVisitor *)
{
switch (ea.getEventType())
{
case osgGA::GUIEventAdapter::FRAME:
return false;
break;
case osgGA::GUIEventAdapter::PUSH:
std::cout << "PUSH: ";
break;
case osgGA::GUIEventAdapter::RELEASE:
std::cout << "RELEASE: ";
break;
case osgGA::GUIEventAdapter::MOVE:
std::cout << "MOVE: ";
break;
case osgGA::GUIEventAdapter::DRAG:
std::cout << "DRAG: ";
break;
case osgGA::GUIEventAdapter::SCROLL:
std::cout << "SCROLL: ";
break;
break;
default:
std::cout << ea.getEventType() << " ";
break;
}
std::cout << ea.getX() << "/" << ea.getY() << " " << ea.isMultiTouchEvent() << std::endl;
return false;
}
bool handle(osgGA::Event* event, osg::Object* object, osg::NodeVisitor* nv)
{
if (event->asGUIEventAdapter())
return osgGA::GUIEventHandler::handle(event, object, nv);
else
{
return false;
}
}
private:
};
enum P3DApplicationType
{
VIEWER,
MASTER,
SLAVE
};
void processLoadedModel(osg::ref_ptr<osg::Node>& loadedModel, int optimizer_options, const std::string& cursorFileName)
{
if (!loadedModel) return;
#if !defined(OSG_GLES2_AVAILABLE) && !defined(OSG_GL3_AVAILABLE)
// add back in enabling of the GL_ALPHA_TEST to get around the core OSG no longer setting it by default for opaque bins.
// the alpha test is required for the volume rendering alpha clipping to work.
loadedModel->getOrCreateStateSet()->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
#endif
// optimize the scene graph, remove redundant nodes and state etc.
osgUtil::Optimizer optimizer;
optimizer.optimize(loadedModel.get(), optimizer_options);
if (!cursorFileName.empty())
{
osg::ref_ptr<osg::Group> group = new osg::Group;
group->addChild(loadedModel.get());
OSG_NOTICE<<"Creating Cursor"<<std::endl;
group->addChild(new osgPresentation::Cursor(cursorFileName, 20.0f));
loadedModel = group;
}
}
void addDeviceTo(osgViewer::Viewer& viewer, const std::string& device_name, bool forward_mouse_events)
{
osg::ref_ptr<osgGA::Device> dev = osgDB::readRefFile<osgGA::Device>(device_name);
if (dev.valid())
{
OSG_INFO << "Adding Device : " << device_name << std::endl;
viewer.addDevice(dev.get());
if ((dev->getCapabilities() & osgGA::Device::SEND_EVENTS))
viewer.getEventHandlers().push_front(new ForwardToDeviceEventHandler(dev.get(), forward_mouse_events));
}
else
{
OSG_WARN << "could not open device: " << device_name << std::endl;
}
}
int main( int argc, char **argv )
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc,argv);
// set up the usage document, in case we need to print out how to use this program.
arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the application for presenting 3D interactive slide shows.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
arguments.getApplicationUsage()->addCommandLineOption("-a","Turn auto stepping on by default");
arguments.getApplicationUsage()->addCommandLineOption("-d <float>","Time duration in seconds between layers/slides");
arguments.getApplicationUsage()->addCommandLineOption("-s <float> <float> <float>","width, height, distance and of the screen away from the viewer");
arguments.getApplicationUsage()->addCommandLineOption("--viewer","Start Present3D as the viewer version.");
arguments.getApplicationUsage()->addCommandLineOption("--authoring","Start Present3D as the authoring version, license required.");
arguments.getApplicationUsage()->addCommandLineOption("--master","Start Present3D as the master version, license required.");
arguments.getApplicationUsage()->addCommandLineOption("--slave","Start Present3D as the slave version, license required.");
arguments.getApplicationUsage()->addCommandLineOption("--publishing","Start Present3D as the publishing version, license required.");
arguments.getApplicationUsage()->addCommandLineOption("--timeDelayOnNewSlideWithMovies","Set the time delay on new slide with movies, done to allow movie threads to get in sync with rendering thread.");
arguments.getApplicationUsage()->addCommandLineOption("--targetFrameRate","Set the target frame rate, defaults to 80Hz.");
arguments.getApplicationUsage()->addCommandLineOption("--version","Report the Present3D version.");
arguments.getApplicationUsage()->addCommandLineOption("--print <filename>","Print out slides to a series of image files.");
arguments.getApplicationUsage()->addCommandLineOption("--html <filename>","Print out slides to a series of html & image files.");
arguments.getApplicationUsage()->addCommandLineOption("--loop","Switch on looping of presentation.");
arguments.getApplicationUsage()->addCommandLineOption("--devices","Print the Video input capability via QuickTime and exit.");
arguments.getApplicationUsage()->addCommandLineOption("--forwardMouseEvents","forward also mouse/touch-events to the devices");
arguments.getApplicationUsage()->addCommandLineOption("--suppressEnvTags", "suppresses all found ENV-tags in the presentation");
// add alias from xml to p3d to provide backwards compatibility for old p3d files.
osgDB::Registry::instance()->addFileExtensionAlias("xml","p3d");
// if user requests devices video capability.
if (arguments.read("-devices") || arguments.read("--devices"))
{
// Force load QuickTime plugin, probe video capability, exit
osgDB::readRefImageFile("devices.live");
return 1;
}
bool suppress_env_tags = false;
if (arguments.read("--suppressEnvTags"))
suppress_env_tags = true;
// read any env vars from presentations before we create viewer to make sure the viewer
// utilises these env vars
if (!suppress_env_tags && p3d::readEnvVars(arguments))
{
osg::DisplaySettings::instance()->readEnvironmentalVariables();
}
// set up any logins required for http access
std::string url, username, password;
while(arguments.read("--login",url, username, password))
{
if (!osgDB::Registry::instance()->getAuthenticationMap())
{
osgDB::Registry::instance()->setAuthenticationMap(new osgDB::AuthenticationMap);
osgDB::Registry::instance()->getAuthenticationMap()->addAuthenticationDetails(
url,
new osgDB::AuthenticationDetails(username, password)
);
}
}
#ifdef USE_SDL
SDLIntegration sdlIntegration;
osg::notify(osg::INFO)<<"USE_SDL"<<std::endl;
#endif
bool doSetViewer = true;
std::string configurationFile;
// check env vars for configuration file
const char* str = getenv("PRESENT3D_CONFIG_FILE");
if (!str) str = getenv("OSG_CONFIG_FILE");
if (str) configurationFile = str;
// check command line parameters for configuration file.
while (arguments.read("-c",configurationFile)) {}
osg::Vec4 clearColor(0.0f,0.0f,0.0f,0.0f);
while (arguments.read("--clear-color",clearColor[0],clearColor[1],clearColor[2],clearColor[3])) {}
std::string filename;
if (arguments.read("--spell-check",filename))
{
p3d::SpellChecker spellChecker;
spellChecker.checkP3dXml(filename);
return 1;
}
if (arguments.read("--strip-text",filename))
{
p3d::XmlPatcher patcher;
// patcher.stripP3dXml(filename, osg::notify(osg::NOTICE));
osg::ref_ptr<osgDB::XmlNode> newNode = patcher.simplifyP3dXml(filename);
if (newNode.valid())
{
newNode->write(std::cout);
}
return 1;
}
std::string lhs_filename, rhs_filename;
if (arguments.read("--merge",lhs_filename, rhs_filename))
{
p3d::XmlPatcher patcher;
osg::ref_ptr<osgDB::XmlNode> newNode = patcher.mergeP3dXml(lhs_filename, rhs_filename);
if (newNode.valid())
{
newNode->write(std::cout);
}
return 1;
}
// construct the viewer.
osgViewer::Viewer viewer(arguments);
// set clear colour to black by default.
viewer.getCamera()->setClearColor(clearColor);
if (!configurationFile.empty())
{
viewer.readConfiguration(configurationFile);
doSetViewer = false;
}
bool forwardMouseEvents = false;
if (arguments.read("--forwardMouseEvents"))
forwardMouseEvents = true;
const char* p3dDevice = getenv("P3D_DEVICE");
if (p3dDevice)
{
osgDB::StringList devices;
osgDB::split(p3dDevice, devices);
for(osgDB::StringList::iterator i = devices.begin(); i != devices.end(); ++i)
{
addDeviceTo(viewer, *i, forwardMouseEvents);
}
}
std::string device;
while (arguments.read("--device", device))
{
addDeviceTo(viewer, device, forwardMouseEvents);
}
if (arguments.read("--http-control"))
{
std::string server_address = "localhost";
std::string server_port = "8080";
std::string document_root = "htdocs";
while (arguments.read("--http-server-address", server_address)) {}
while (arguments.read("--http-server-port", server_port)) {}
while (arguments.read("--http-document-root", document_root)) {}
osg::ref_ptr<osgDB::Options> device_options = new osgDB::Options("documentRegisteredHandlers");
osg::ref_ptr<osgGA::Device> rest_http_device = osgDB::readRefFile<osgGA::Device>(server_address+":"+server_port+"/"+document_root+".resthttp", device_options.get());
if (rest_http_device.valid())
{
viewer.addDevice(rest_http_device.get());
}
}
// set up stereo masks
viewer.getCamera()->setCullMaskLeft(0x00000001);
viewer.getCamera()->setCullMaskRight(0x00000002);
bool assignLeftCullMaskForMono = true;
if (assignLeftCullMaskForMono)
{
viewer.getCamera()->setCullMask(viewer.getCamera()->getCullMaskLeft());
}
else
{
viewer.getCamera()->setCullMask(0xffffffff);
}
// set up the camera manipulators.
{
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new osgGA::MultiTouchTrackballManipulator() );
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() );
}
//viewer.getEventHandlers().push_front(new DumpEventHandler());
// add the state manipulator
osg::ref_ptr<osgGA::StateSetManipulator> ssManipulator = new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet());
ssManipulator->setKeyEventToggleTexturing('e');
viewer.addEventHandler( ssManipulator.get() );
// add the state manipulator
viewer.addEventHandler( new osgViewer::StatsHandler() );
viewer.addEventHandler( new osgViewer::WindowSizeHandler() );
// neeed to address.
// viewer.getScene()->getUpdateVisitor()->setTraversalMode(osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN);
const char* p3dCursor = getenv("P3D_CURSOR");
std::string cursorFileName( p3dCursor ? p3dCursor : "");
while (arguments.read("--cursor",cursorFileName)) {}
const char* p3dShowCursor = getenv("P3D_SHOW_CURSOR");
std::string showCursor( p3dShowCursor ? p3dShowCursor : "YES");
while (arguments.read("--show-cursor")) { showCursor="YES"; }
while (arguments.read("--hide-cursor")) { showCursor="NO"; }
bool hideCursor = (showCursor=="No" || showCursor=="NO" || showCursor=="no");
while (arguments.read("--set-viewer")) { doSetViewer = true; }
while (arguments.read("--no-set-viewer")) { doSetViewer = false; }
// if we want to hide the cursor override the custom cursor.
if (hideCursor) cursorFileName.clear();
// cluster related entries.
int socketNumber=8100;
while (arguments.read("-n",socketNumber)) {}
float camera_fov=-1.0f;
while (arguments.read("-f",camera_fov)) {}
float camera_offset=45.0f;
while (arguments.read("-o",camera_offset)) {}
std::string exportName;
while (arguments.read("--print",exportName)) {}
while (arguments.read("--html",exportName)) {}
// read any time delay argument.
float timeDelayBetweenSlides = 1.0f;
while (arguments.read("-d",timeDelayBetweenSlides)) {}
bool autoSteppingActive = false;
while (arguments.read("-a")) autoSteppingActive = true;
bool loopPresentation = false;
while (arguments.read("--loop")) loopPresentation = true;
{
// set update hte default traversal mode settings for update visitor
// default to osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN.
osg::NodeVisitor::TraversalMode updateTraversalMode = osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN; // viewer.getUpdateVisitor()->getTraversalMode();
const char* p3dUpdateStr = getenv("P3D_UPDATE");
if (p3dUpdateStr)
{
std::string updateStr(p3dUpdateStr);
if (updateStr=="active" || updateStr=="Active" || updateStr=="ACTIVE") updateTraversalMode = osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN;
else if (updateStr=="all" || updateStr=="All" || updateStr=="ALL") updateTraversalMode = osg::NodeVisitor::TRAVERSE_ALL_CHILDREN;
}
while(arguments.read("--update-active")) updateTraversalMode = osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN;
while(arguments.read("--update-all")) updateTraversalMode = osg::NodeVisitor::TRAVERSE_ALL_CHILDREN;
viewer.getUpdateVisitor()->setTraversalMode(updateTraversalMode);
}
// register the slide event handler - which moves the presentation from slide to slide, layer to layer.
osg::ref_ptr<osgPresentation::SlideEventHandler> seh = new osgPresentation::SlideEventHandler(&viewer);
viewer.addEventHandler(seh.get());
seh->setAutoSteppingActive(autoSteppingActive);
seh->setTimeDelayBetweenSlides(timeDelayBetweenSlides);
seh->setLoopPresentation(loopPresentation);
double targetFrameRate = 80.0;
while (arguments.read("--targetFrameRate",targetFrameRate)) {}
// set the time delay
float timeDelayOnNewSlideWithMovies = 0.4f;
while (arguments.read("--timeDelayOnNewSlideWithMovies",timeDelayOnNewSlideWithMovies)) {}
seh->setTimeDelayOnNewSlideWithMovies(timeDelayOnNewSlideWithMovies);
// set up optimizer options
unsigned int optimizer_options = osgUtil::Optimizer::DEFAULT_OPTIMIZATIONS;
bool release_and_compile = false;
while (arguments.read("--release-and-compile"))
{
release_and_compile = true;
}
seh->setReleaseAndCompileOnEachNewSlide(release_and_compile);
if (release_and_compile)
{
// make sure that imagery stays around after being applied to textures.
viewer.getDatabasePager()->setUnrefImageDataAfterApplyPolicy(true,false);
optimizer_options &= ~osgUtil::Optimizer::OPTIMIZE_TEXTURE_SETTINGS;
}
//
// osgDB::Registry::instance()->getOrCreateDatabasePager()->setUnrefImageDataAfterApplyPolicy(true,false);
// optimizer_options &= ~osgUtil::Optimizer::OPTIMIZE_TEXTURE_SETTINGS;
// osg::Texture::getTextureObjectManager()->setExpiryDelay(0.0f);
// osgDB::Registry::instance()->getOrCreateDatabasePager()->setExpiryDelay(1.0f);
// register the handler for modifying the point size
osg::ref_ptr<PointsEventHandler> peh = new PointsEventHandler;
viewer.addEventHandler(peh.get());
// add the screen capture handler
std::string screenCaptureFilename = "screen_shot.jpg";
while(arguments.read("--screenshot", screenCaptureFilename)) {}
osg::ref_ptr<osgViewer::ScreenCaptureHandler::WriteToFile> writeFile = new osgViewer::ScreenCaptureHandler::WriteToFile(
osgDB::getNameLessExtension(screenCaptureFilename),
osgDB::getFileExtension(screenCaptureFilename) );
osg::ref_ptr<osgViewer::ScreenCaptureHandler> screenCaptureHandler = new osgViewer::ScreenCaptureHandler(writeFile.get());
screenCaptureHandler->setKeyEventTakeScreenShot('m');//osgGA::GUIEventAdapter::KEY_Print);
screenCaptureHandler->setKeyEventToggleContinuousCapture('M');
viewer.addEventHandler(screenCaptureHandler.get());
// osg::DisplaySettings::instance()->setSplitStereoAutoAjustAspectRatio(false);
float width = osg::DisplaySettings::instance()->getScreenWidth();
float height = osg::DisplaySettings::instance()->getScreenHeight();
float distance = osg::DisplaySettings::instance()->getScreenDistance();
while (arguments.read("-s", width, height, distance))
{
osg::DisplaySettings::instance()->setScreenDistance(distance);
osg::DisplaySettings::instance()->setScreenHeight(height);
osg::DisplaySettings::instance()->setScreenWidth(width);
}
std::string outputFileName;
while(arguments.read("--output",outputFileName)) {}
// get details on keyboard and mouse bindings used by the viewer.
viewer.getUsage(*arguments.getApplicationUsage());
// if user request help write it out to cout.
unsigned int helpType = 0;
if ((helpType = arguments.readHelpType()))
{
arguments.getApplicationUsage()->write(std::cout, helpType);
return 1;
}
P3DApplicationType P3DApplicationType = VIEWER;
str = getenv("PRESENT3D_TYPE");
if (str)
{
if (strcmp(str,"viewer")==0) P3DApplicationType = VIEWER;
else if (strcmp(str,"master")==0) P3DApplicationType = MASTER;
else if (strcmp(str,"slave")==0) P3DApplicationType = SLAVE;
}
while (arguments.read("--viewer")) { P3DApplicationType = VIEWER; }
while (arguments.read("--master")) { P3DApplicationType = MASTER; }
while (arguments.read("--slave")) { P3DApplicationType = SLAVE; }
while (arguments.read("--version"))
{
std::string appTypeName = "invalid";
switch(P3DApplicationType)
{
case(VIEWER): appTypeName = "viewer"; break;
case(MASTER): appTypeName = "master"; break;
case(SLAVE): appTypeName = "slave"; break;
}
osg::notify(osg::NOTICE)<<std::endl;
osg::notify(osg::NOTICE)<<"Present3D "<<appTypeName<<" version : "<<s_version<<std::endl;
osg::notify(osg::NOTICE)<<std::endl;
return 0;
}
// any option left unread are converted into errors to write out later.
//arguments.reportRemainingOptionsAsUnrecognized();
// report any errors if they have ocured when parsing the program aguments.
if (arguments.errors())
{
arguments.writeErrorMessages(osg::notify(osg::INFO));
return 1;
}
// read files name from arguments.
p3d::FileNameList xmlFiles, normalFiles;
if (!p3d::getFileNames(arguments, xmlFiles, normalFiles))
{
osg::notify(osg::NOTICE)<<std::endl;
osg::notify(osg::NOTICE)<<"No file specified, please specify and file to load."<<std::endl;
osg::notify(osg::NOTICE)<<std::endl;
return 1;
}
bool viewerInitialized = false;
if (!xmlFiles.empty())
{
osg::ref_ptr<osg::Node> holdingModel = p3d::readHoldingSlide(xmlFiles.front());
if (holdingModel.valid())
{
viewer.setSceneData(holdingModel.get());
seh->selectSlide(0);
if (!viewerInitialized)
{
// pass the global stateset to the point event handler so that it can
// alter the point size of all points in the scene.
peh->setStateSet(viewer.getCamera()->getOrCreateStateSet());
// create the windows and run the threads.
viewer.realize();
if (doSetViewer) setViewer(viewer, width, height, distance);
viewerInitialized = true;
}
seh->home();
// render a frame
viewer.frame();
}
}
osg::Timer timer;
osg::Timer_t start_tick = timer.tick();
osg::ref_ptr<osgDB::ReaderWriter::Options> cacheAllOption = new osgDB::ReaderWriter::Options;
if(suppress_env_tags)
cacheAllOption->setPluginStringData("suppressEnvTags", "true");
cacheAllOption->setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_ALL);
osgDB::Registry::instance()->setOptions(cacheAllOption.get());
// read the scene from the list of file specified commandline args.
osg::ref_ptr<osg::Node> loadedModel = p3d::readShowFiles(arguments,cacheAllOption.get()); // osgDB::readNodeFiles(arguments, cacheAllOption.get());
osgDB::Registry::instance()->setOptions( 0 );
// if no model has been successfully loaded report failure.
if (!loadedModel)
{
osg::notify(osg::INFO) << arguments.getApplicationName() <<": No data loaded" << std::endl;
return 1;
}
osg::Timer_t end_tick = timer.tick();
osg::notify(osg::INFO) << "Time to load = "<<timer.delta_s(start_tick,end_tick)<<std::endl;
if (loadedModel->getNumDescriptions()>0)
{
for(unsigned int i=0; i<loadedModel->getNumDescriptions(); ++i)
{
const std::string& desc = loadedModel->getDescription(i);
if (desc=="loop")
{
osg::notify(osg::NOTICE)<<"Enabling looping"<<std::endl;
seh->setLoopPresentation(true);
}
else if (desc=="auto")
{
osg::notify(osg::NOTICE)<<"Enabling auto run"<<std::endl;
seh->setAutoSteppingActive(true);
}
}
}
processLoadedModel(loadedModel, optimizer_options, cursorFileName);
// set the scene to render
viewer.setSceneData(loadedModel.get());
if (!viewerInitialized)
{
// pass the global stateset to the point event handler so that it can
// alter the point size of all points in the scene.
peh->setStateSet(viewer.getCamera()->getOrCreateStateSet());
// create the windows and run the threads.
viewer.realize();
if (doSetViewer) setViewer(viewer, width, height, distance);
viewerInitialized = true;
}
// pass the model to the slide event handler so it knows which to manipulate.
seh->set(loadedModel.get());
seh->selectSlide(0);
seh->home();
if (!outputFileName.empty())
{
osgDB::writeNodeFile(*loadedModel,outputFileName);
return 0;
}
if (!cursorFileName.empty() || hideCursor)
{
// have to add a frame in here to avoid problems with X11 threading issue on switching off the cursor
// not yet sure why it makes a difference, but it at least fixes the crash that would otherwise occur
// under X11.
viewer.frame();
// switch off the cursor
osgViewer::Viewer::Windows windows;
viewer.getWindows(windows);
for(osgViewer::Viewer::Windows::iterator itr = windows.begin();
itr != windows.end();
++itr)
{
(*itr)->useCursor(false);
}
}
osg::Timer_t startOfFrameTick = osg::Timer::instance()->tick();
double targetFrameTime = 1.0/targetFrameRate;
if (exportName.empty())
{
// objects for managing the broadcasting and recieving of camera packets.
CameraPacket cp;
Broadcaster bc;
Receiver rc;
bc.setPort(static_cast<short int>(socketNumber));
rc.setPort(static_cast<short int>(socketNumber));
bool masterKilled = false;
DataConverter scratchPad(1024);
while( !viewer.done() && !masterKilled)
{
// wait for all cull and draw threads to complete.
viewer.advance();
osg::Timer_t currentTick = osg::Timer::instance()->tick();
double deltaTime = osg::Timer::instance()->delta_s(startOfFrameTick, currentTick);
if (deltaTime<targetFrameTime)
{
OpenThreads::Thread::microSleep(static_cast<unsigned int>((targetFrameTime-deltaTime)*1000000.0));
}
startOfFrameTick = osg::Timer::instance()->tick();
#if 0
if (kmcb)
{
double time = kmcb->getTime();
viewer.getFrameStamp()->setReferenceTime(time);
}
#endif
#ifdef USE_SDL
sdlIntegration.update(viewer);
#endif
if (P3DApplicationType==MASTER)
{
// take camera zero as the guide.
osg::Matrix modelview(viewer.getCamera()->getViewMatrix());
cp.setPacket(modelview,viewer.getFrameStamp());
// cp.readEventQueue(viewer);
scratchPad.reset();
scratchPad.write(cp);
scratchPad.reset();
scratchPad.read(cp);
bc.setBuffer(scratchPad.startPtr(), scratchPad.numBytes());
std::cout << "bc.sync()"<<scratchPad.numBytes()<<std::endl;
bc.sync();
}
else if (P3DApplicationType==SLAVE)
{
rc.setBuffer(scratchPad.startPtr(), scratchPad.numBytes());
rc.sync();
scratchPad.reset();
scratchPad.read(cp);
// cp.writeEventQueue(viewer);
if (cp.getMasterKilled())
{
std::cout << "Received master killed."<<std::endl;
// break out of while (!done) loop since we've now want to shut down.
masterKilled = true;
}
}
// update the scene by traversing it with the update visitor which will
// call all node update callbacks and animations.
viewer.eventTraversal();
if (seh->getRequestReload())
{
OSG_INFO<<"Reload requested"<<std::endl;
seh->setRequestReload(false);
int previous_ActiveSlide = seh->getActiveSlide();
int previous_ActiveLayer = seh->getActiveLayer();
// reset time so any event key generate
loadedModel = p3d::readShowFiles(arguments,cacheAllOption.get());
processLoadedModel(loadedModel, optimizer_options, cursorFileName);
if (!loadedModel)
{
return 0;
}
viewer.setSceneData(loadedModel.get());
seh->set(loadedModel.get());
seh->selectSlide(previous_ActiveSlide, previous_ActiveLayer);
continue;
}
// update the scene by traversing it with the update visitor which will
// call all node update callbacks and animations.
viewer.updateTraversal();
if (P3DApplicationType==SLAVE)
{
osg::Matrix modelview;
cp.getModelView(modelview,camera_offset);
viewer.getCamera()->setViewMatrix(modelview);
}
// fire off the cull and draw traversals of the scene.
if(!masterKilled)
viewer.renderingTraversals();
}
}
else
{
ExportHTML::write(seh.get(), viewer, exportName);
}
return 0;
}
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