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OpenSceneGraph/src/osgViewer/Viewer.cpp

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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library 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
* OpenSceneGraph Public License for more details.
*/
#include <stdio.h>
#include <stdlib.h>
#include <osg/DeleteHandler>
#include <osg/io_utils>
#include <osg/TextureRectangle>
#include <osg/TextureCubeMap>
#include <osgDB/Registry>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <osgGA/TrackballManipulator>
#include <osgViewer/Viewer>
#include <osgViewer/Renderer>
#include <osgViewer/CompositeViewer>
#include <osgViewer/config/SphericalDisplay>
#include <osgViewer/config/PanoramicSphericalDisplay>
#include <osgViewer/config/WoWVxDisplay>
#include <sstream>
#include <string.h>
using namespace osgViewer;
Viewer::Viewer()
{
_viewerBase = this;
constructorInit();
}
Viewer::Viewer(osg::ArgumentParser& arguments)
{
_viewerBase = this;
constructorInit();
// Add help for command-line options read here
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.");
arguments.getApplicationUsage()->addCommandLineOption("--clear-color <color>","Set the background color of the viewer in the form \"r,g,b[,a]\".");
arguments.getApplicationUsage()->addCommandLineOption("--screen <num>","Set the screen to use when multiple screens are present.");
arguments.getApplicationUsage()->addCommandLineOption("--window <x y w h>","Set the position (x,y) and size (w,h) of the viewer window.");
arguments.getApplicationUsage()->addCommandLineOption("--run-on-demand","Set the run methods frame rate management to only rendering frames when required.");
arguments.getApplicationUsage()->addCommandLineOption("--run-continuous","Set the run methods frame rate management to rendering frames continuously.");
arguments.getApplicationUsage()->addCommandLineOption("--run-max-frame-rate","Set the run methods maximum permissable frame rate, 0.0 is default and switching off frame rate capping.");
arguments.getApplicationUsage()->addCommandLineOption("--enable-object-cache","Enable caching of objects, images, etc.");
// FIXME: Uncomment these lines when the options have been documented properly
//arguments.getApplicationUsage()->addCommandLineOption("--3d-sd","");
//arguments.getApplicationUsage()->addCommandLineOption("--panoramic-sd","");
//arguments.getApplicationUsage()->addCommandLineOption("--radius","");
//arguments.getApplicationUsage()->addCommandLineOption("--collar","");
//arguments.getApplicationUsage()->addCommandLineOption("--im","");
if (arguments.read("--ico"))
{
setIncrementalCompileOperation(new osgUtil::IncrementalCompileOperation());
}
std::string filename;
bool readConfig = false;
while (arguments.read("-c",filename))
{
readConfig = readConfiguration(filename) || readConfig;
}
// Enable caching?
while (arguments.read("--enable-object-cache"))
{
if (osgDB::Registry::instance()->getOptions()==0) osgDB::Registry::instance()->setOptions(new osgDB::Options());
osgDB::Registry::instance()->getOptions()->setObjectCacheHint(osgDB::Options::CACHE_ALL);
}
while (arguments.read("--SingleThreaded")) setThreadingModel(SingleThreaded);
while (arguments.read("--CullDrawThreadPerContext")) setThreadingModel(CullDrawThreadPerContext);
while (arguments.read("--DrawThreadPerContext")) setThreadingModel(DrawThreadPerContext);
while (arguments.read("--CullThreadPerCameraDrawThreadPerContext")) setThreadingModel(CullThreadPerCameraDrawThreadPerContext);
osg::DisplaySettings::instance()->readCommandLine(arguments);
osgDB::readCommandLine(arguments);
std::string colorStr;
while (arguments.read("--clear-color",colorStr))
{
float r, g, b;
float a = 1.0f;
int cnt = sscanf( colorStr.c_str(), "%f,%f,%f,%f", &r, &g, &b, &a );
if( cnt==3 || cnt==4 )
{
getCamera()->setClearColor( osg::Vec4(r,g,b,a) );
}
else
{
OSG_WARN<<"Invalid clear color \""<<colorStr<<"\""<<std::endl;
}
}
while(arguments.read("--run-on-demand")) { setRunFrameScheme(ON_DEMAND); }
while(arguments.read("--run-continuous")) { setRunFrameScheme(CONTINUOUS); }
double runMaxFrameRate;
while(arguments.read("--run-max-frame-rate", runMaxFrameRate)) { setRunMaxFrameRate(runMaxFrameRate); }
int screenNum = -1;
while (arguments.read("--screen",screenNum)) {}
int x = -1, y = -1, width = -1, height = -1;
while (arguments.read("--window",x,y,width,height)) {}
bool ss3d = false;
bool wowvx20 = false;
bool wowvx42 = false;
if ((wowvx20=arguments.read("--wowvx-20")) || (wowvx42=arguments.read("--wowvx-42")) || arguments.read("--wowvx"))
{
osg::ref_ptr<WoWVxDisplay> wow = new WoWVxDisplay;
if (screenNum>=0) wow->setScreenNum(screenNum);
if (wowvx20) wow->WoWVx20();
if (wowvx42) wow->WoWVx42();
unsigned int c;
float v;
while (arguments.read("--wow-content",c)) { wow->setContent(c); }
while (arguments.read("--wow-factor",c)) { wow->setFactor(c); }
while (arguments.read("--wow-offset",c)) { wow->setOffset(c); }
while (arguments.read("--wow-zd",v)) { wow->setDisparityZD(v); }
while (arguments.read("--wow-vz",v)) { wow->setDisparityVZ(v); }
while (arguments.read("--wow-M",v)) { wow->setDisparityM(v); }
while (arguments.read("--wow-C",v)) { wow->setDisparityC(v); }
apply(wow.get());
}
else if ((ss3d=arguments.read("--3d-sd")) || arguments.read("--panoramic-sd"))
{
double radius = 1.0;
while (arguments.read("--radius",radius)) {}
double collar = 0.45;
while (arguments.read("--collar",collar)) {}
std::string intensityMapFilename;
while (arguments.read("--im",intensityMapFilename)) {}
osg::ref_ptr<osg::Image> intensityMap = intensityMapFilename.empty() ? 0 : osgDB::readImageFile(intensityMapFilename);
if (screenNum<0) screenNum = 0;
if (ss3d)
{
setThreadingModel(SingleThreaded);
setUpViewFor3DSphericalDisplay(radius, collar, screenNum, intensityMap.get());
}
else
{
setThreadingModel(SingleThreaded);
setUpViewForPanoramicSphericalDisplay(radius, collar, screenNum, intensityMap.get());
}
}
else if (width>0 && height>0)
{
if (screenNum>=0) setUpViewInWindow(x, y, width, height, screenNum);
else setUpViewInWindow(x,y,width,height);
}
else if (screenNum>=0)
{
setUpViewOnSingleScreen(screenNum);
}
}
Viewer::Viewer(const osgViewer::Viewer& viewer, const osg::CopyOp& copyop):
osg::Object(true),
ViewerBase(viewer),
View(viewer,copyop)
{
_viewerBase = this;
}
void Viewer::constructorInit()
{
_eventVisitor = new osgGA::EventVisitor;
_eventVisitor->setActionAdapter(this);
_eventVisitor->setFrameStamp(_frameStamp.get());
_updateVisitor = new osgUtil::UpdateVisitor;
_updateVisitor->setFrameStamp(_frameStamp.get());
setViewerStats(new osg::Stats("Viewer"));
}
Viewer::~Viewer()
{
//OSG_NOTICE<<"Viewer::~Viewer()"<<std::endl;
Threads threads;
getAllThreads(threads);
OSG_INFO<<"Viewer::~Viewer():: start destructor getThreads = "<<threads.size()<<std::endl;
stopThreading();
if (_scene.valid() && _scene->getDatabasePager())
{
_scene->getDatabasePager()->cancel();
_scene->setDatabasePager(0);
}
Contexts contexts;
getContexts(contexts);
// clear out all the previously assigned operations
for(Contexts::iterator citr = contexts.begin();
citr != contexts.end();
++citr)
{
(*citr)->close();
}
//OSG_NOTICE<<"finish Viewer::~Viewer()"<<std::endl;
getAllThreads(threads);
OSG_INFO<<"Viewer::~Viewer() end destructor getThreads = "<<threads.size()<<std::endl;
}
void Viewer::take(osg::View& rhs)
{
osgViewer::View::take(rhs);
#if 1
osgViewer::Viewer* rhs_viewer = dynamic_cast<osgViewer::Viewer*>(&rhs);
if (rhs_viewer)
{
// variables left to take.
_done = rhs_viewer->_done;
_keyEventSetsDone = rhs_viewer->_keyEventSetsDone;
_quitEventSetsDone = rhs_viewer->_quitEventSetsDone;
_threadingModel = rhs_viewer->_threadingModel;
_threadsRunning = rhs_viewer->_threadsRunning;
_endBarrierPosition = rhs_viewer->_endBarrierPosition;
_startRenderingBarrier = rhs_viewer->_startRenderingBarrier;
_endRenderingDispatchBarrier = rhs_viewer->_endRenderingDispatchBarrier;
_endDynamicDrawBlock = rhs_viewer->_endDynamicDrawBlock;
_eventVisitor = rhs_viewer->_eventVisitor;
_updateOperations = rhs_viewer->_updateOperations;
_updateVisitor = rhs_viewer->_updateVisitor;
_realizeOperation = rhs_viewer->_realizeOperation;
_currentContext = rhs_viewer->_currentContext;
// objects to clear
rhs_viewer->_done = true;
rhs_viewer->_startRenderingBarrier = 0;
rhs_viewer->_endRenderingDispatchBarrier = 0;
rhs_viewer->_endDynamicDrawBlock = 0;
rhs_viewer->_eventVisitor = 0;
rhs_viewer->_updateOperations = 0;
rhs_viewer->_updateVisitor = 0;
rhs_viewer->_realizeOperation = 0;
rhs_viewer->_currentContext = 0;
}
#endif
}
bool Viewer::readConfiguration(const std::string& filename)
{
OSG_INFO<<"Viewer::readConfiguration("<<filename<<")"<<std::endl;
osg::ref_ptr<osg::Object> object = osgDB::readObjectFile(filename);
if (!object)
{
//OSG_NOTICE<<"Error: Unable to load configuration file \""<<filename<<"\""<<std::endl;
return false;
}
ViewConfig* config = dynamic_cast<ViewConfig*>(object.get());
if (config)
{
OSG_NOTICE<<"Using osgViewer::Config : "<<config->className()<<std::endl;
config->configure(*this);
osgDB::writeObjectFile(*config,"test.osgt");
return true;
}
CompositeViewer* compositeViewer = dynamic_cast<CompositeViewer*>(object.get());
if (compositeViewer)
{
OSG_NOTICE<<"Error: Config file \""<<filename<<"\" containing CompositeViewer cannot be loaded by Viewer."<<std::endl;
return false;
}
View* view = dynamic_cast<osgViewer::View*>(object.get());
if (view)
{
take(*view);
return true;
}
else
{
OSG_NOTICE<<"Error: Config file \""<<filename<<"\" does not contain a valid Viewer configuration."<<std::endl;
return false;
}
}
bool Viewer::isRealized() const
{
Contexts contexts;
const_cast<Viewer*>(this)->getContexts(contexts);
unsigned int numRealizedWindows = 0;
// clear out all the previously assigned operations
for(Contexts::iterator citr = contexts.begin();
citr != contexts.end();
++citr)
{
if ((*citr)->isRealized()) ++numRealizedWindows;
}
return numRealizedWindows > 0;
}
bool Viewer::checkNeedToDoFrame()
{
if (_requestRedraw) return true;
if (_requestContinousUpdate) return true;
// If the database pager is going to update the scene the render flag is
// set so that the updates show up
if(getDatabasePager()->requiresUpdateSceneGraph() || getDatabasePager()->getRequestsInProgress()) return true;
// if there update callbacks then we need to do frame.
if (_camera->getUpdateCallback()) return true;
if (getSceneData()!=0 && getSceneData()->getNumChildrenRequiringUpdateTraversal()>0) return true;
// check if events are available and need processing
if (checkEvents()) return true;
// now check if any of the event handles have prompted a redraw.
if (_requestRedraw) return true;
if (_requestContinousUpdate) return true;
return false;
}
bool Viewer::checkEvents()
{
// check events from any attached sources
for(Devices::iterator eitr = _eventSources.begin();
eitr != _eventSources.end();
++eitr)
{
osgGA::Device* es = eitr->get();
if (es->getCapabilities() & osgGA::Device::RECEIVE_EVENTS)
{
if (es->checkEvents()) return true;
}
}
// get events from all windows attached to Viewer.
Windows windows;
getWindows(windows);
for(Windows::iterator witr = windows.begin();
witr != windows.end();
++witr)
{
if ((*witr)->checkEvents()) return true;
}
return false;
}
int Viewer::run()
{
if (!getCameraManipulator() && getCamera()->getAllowEventFocus())
{
setCameraManipulator(new osgGA::TrackballManipulator());
}
setReleaseContextAtEndOfFrameHint(false);
return ViewerBase::run();
}
void Viewer::setStartTick(osg::Timer_t tick)
{
View::setStartTick(tick);
Contexts contexts;
getContexts(contexts,false);
getEventQueue()->setStartTick(_startTick);
for(Contexts::iterator citr = contexts.begin();
citr != contexts.end();
++citr)
{
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(*citr);
if (gw)
{
gw->getEventQueue()->setStartTick(_startTick);
}
}
}
void Viewer::setReferenceTime(double time)
{
osg::Timer_t tick = osg::Timer::instance()->tick();
double currentTime = osg::Timer::instance()->delta_s(_startTick, tick);
double delta_ticks = (time-currentTime)*(osg::Timer::instance()->getSecondsPerTick());
if (delta_ticks>=0) tick += osg::Timer_t(delta_ticks);
else tick -= osg::Timer_t(-delta_ticks);
// assign the new start tick
setStartTick(tick);
}
void Viewer::setSceneData(osg::Node* node)
{
setReferenceTime(0.0);
View::setSceneData(node);
}
GraphicsWindowEmbedded* Viewer::setUpViewerAsEmbeddedInWindow(int x, int y, int width, int height)
{
setThreadingModel(SingleThreaded);
osgViewer::GraphicsWindowEmbedded* gw = new osgViewer::GraphicsWindowEmbedded(x,y,width,height);
getCamera()->setViewport(new osg::Viewport(0,0,width,height));
getCamera()->setProjectionMatrixAsPerspective(30.0f, static_cast<double>(width)/static_cast<double>(height), 1.0f, 10000.0f);
getCamera()->setGraphicsContext(gw);
return gw;
}
void Viewer::realize()
{
//OSG_INFO<<"Viewer::realize()"<<std::endl;
Contexts contexts;
getContexts(contexts);
if (contexts.empty())
{
OSG_INFO<<"Viewer::realize() - No valid contexts found, setting up view across all screens."<<std::endl;
// no windows are already set up so set up a default view
const char* ptr = 0;
if ((ptr = getenv("OSG_CONFIG_FILE")) != 0)
{
readConfiguration(ptr);
}
else
{
int screenNum = -1;
if ((ptr = getenv("OSG_SCREEN")) != 0)
{
if (strlen(ptr)!=0) screenNum = atoi(ptr);
else screenNum = -1;
}
int x = -1, y = -1, width = -1, height = -1;
if ((ptr = getenv("OSG_WINDOW")) != 0)
{
std::istringstream iss(ptr);
iss >> x >> y >> width >> height;
}
if (width>0 && height>0)
{
if (screenNum>=0) setUpViewInWindow(x, y, width, height, screenNum);
else setUpViewInWindow(x,y,width,height);
}
else if (screenNum>=0)
{
setUpViewOnSingleScreen(screenNum);
}
else
{
setUpViewAcrossAllScreens();
}
}
getContexts(contexts);
}
if (contexts.empty())
{
OSG_NOTICE<<"Viewer::realize() - failed to set up any windows"<<std::endl;
_done = true;
return;
}
unsigned int maxTexturePoolSize = osg::DisplaySettings::instance()->getMaxTexturePoolSize();
if (_camera->getDisplaySettings()) maxTexturePoolSize = std::max(maxTexturePoolSize, _camera->getDisplaySettings()->getMaxTexturePoolSize());
if (_displaySettings.valid()) maxTexturePoolSize = std::max(maxTexturePoolSize, _displaySettings->getMaxTexturePoolSize());
unsigned int maxBufferObjectPoolSize = osg::DisplaySettings::instance()->getMaxBufferObjectPoolSize();
if (_displaySettings.valid()) maxBufferObjectPoolSize = std::max(maxBufferObjectPoolSize, _displaySettings->getMaxBufferObjectPoolSize());
if (_camera->getDisplaySettings()) maxBufferObjectPoolSize = std::max(maxBufferObjectPoolSize, _camera->getDisplaySettings()->getMaxBufferObjectPoolSize());
for(Contexts::iterator citr = contexts.begin();
citr != contexts.end();
++citr)
{
osg::GraphicsContext* gc = *citr;
// set the pool sizes, 0 the default will result in no GL object pools.
gc->getState()->setMaxTexturePoolSize(maxTexturePoolSize);
gc->getState()->setMaxBufferObjectPoolSize(maxBufferObjectPoolSize);
gc->realize();
if (_realizeOperation.valid() && gc->valid())
{
gc->makeCurrent();
(*_realizeOperation)(gc);
gc->releaseContext();
}
}
// attach contexts to _incrementalCompileOperation if attached.
if (_incrementalCompileOperation) _incrementalCompileOperation->assignContexts(contexts);
bool grabFocus = true;
if (grabFocus)
{
for(Contexts::iterator citr = contexts.begin();
citr != contexts.end();
++citr)
{
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(*citr);
if (gw)
{
gw->grabFocusIfPointerInWindow();
}
}
}
// initialize the global timer to be relative to the current time.
osg::Timer::instance()->setStartTick();
// pass on the start tick to all the associated event queues
setStartTick(osg::Timer::instance()->getStartTick());
setUpThreading();
if (osg::DisplaySettings::instance()->getCompileContextsHint())
{
int numProcessors = OpenThreads::GetNumberOfProcessors();
int processNum = 0;
for(unsigned int i=0; i<= osg::GraphicsContext::getMaxContextID(); ++i)
{
osg::GraphicsContext* gc = osg::GraphicsContext::getOrCreateCompileContext(i);
if (gc)
{
gc->createGraphicsThread();
gc->getGraphicsThread()->setProcessorAffinity(processNum % numProcessors);
gc->getGraphicsThread()->startThread();
++processNum;
}
}
}
#if 0
osgGA::GUIEventAdapter* eventState = getEventQueue()->getCurrentEventState();
if (getCamera()->getViewport())
{
osg::Viewport* viewport = getCamera()->getViewport();
eventState->setInputRange( viewport->x(), viewport->y(), viewport->x() + viewport->width(), viewport->y() + viewport->height());
}
else
{
eventState->setInputRange(-1.0, -1.0, 1.0, 1.0);
}
#endif
}
void Viewer::advance(double simulationTime)
{
if (_done) return;
double previousReferenceTime = _frameStamp->getReferenceTime();
unsigned int previousFrameNumber = _frameStamp->getFrameNumber();
_frameStamp->setFrameNumber(_frameStamp->getFrameNumber()+1);
_frameStamp->setReferenceTime( osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick()) );
if (simulationTime==USE_REFERENCE_TIME)
{
_frameStamp->setSimulationTime(_frameStamp->getReferenceTime());
}
else
{
_frameStamp->setSimulationTime(simulationTime);
}
if (getViewerStats() && getViewerStats()->collectStats("frame_rate"))
{
// update previous frame stats
double deltaFrameTime = _frameStamp->getReferenceTime() - previousReferenceTime;
getViewerStats()->setAttribute(previousFrameNumber, "Frame duration", deltaFrameTime);
getViewerStats()->setAttribute(previousFrameNumber, "Frame rate", 1.0/deltaFrameTime);
// update current frames stats
getViewerStats()->setAttribute(_frameStamp->getFrameNumber(), "Reference time", _frameStamp->getReferenceTime());
}
if (osg::Referenced::getDeleteHandler())
{
osg::Referenced::getDeleteHandler()->flush();
osg::Referenced::getDeleteHandler()->setFrameNumber(_frameStamp->getFrameNumber());
}
}
void Viewer::generateSlavePointerData(osg::Camera* camera, osgGA::GUIEventAdapter& event)
{
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(event.getGraphicsContext());
if (!gw) return;
// What type of Camera is it?
// 1) Master Camera : do nothin extra
// 2) Slave Camera, Relative RF, Same scene graph as master : transform coords into Master Camera and add to PointerData list
// 3) Slave Camera, Relative RF, Different scene graph from master : do nothing extra?
// 4) Slave Camera, Absolute RF, Same scene graph as master : do nothing extra?
// 5) Slave Camera, Absolute RF, Different scene graph : do nothing extra?
// 6) Slave Camera, Absolute RF, Different scene graph but a distortion correction subgraph depending upon RTT Camera (slave or master)
// : project ray into RTT Camera's clip space, and RTT Camera's is Relative RF and sharing same scene graph as master then transform coords.
// if camera isn't the master it must be a slave and could need reprojecting.
if (camera!=getCamera())
{
float x = event.getX();
float y = event.getY();
bool invert_y = event.getMouseYOrientation()==osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS;
if (invert_y && gw->getTraits()) y = gw->getTraits()->height - y;
double master_min_x = -1.0;
double master_max_x = 1.0;
double master_min_y = -1.0;
double master_max_y = 1.0;
osg::Matrix masterCameraVPW = getCamera()->getViewMatrix() * getCamera()->getProjectionMatrix();
if (getCamera()->getViewport())
{
osg::Viewport* viewport = getCamera()->getViewport();
master_min_x = viewport->x();
master_min_y = viewport->y();
master_max_x = viewport->x()+viewport->width();
master_max_y = viewport->y()+viewport->height();
masterCameraVPW *= viewport->computeWindowMatrix();
}
// slave Camera if it shares the same View
osg::View::Slave* slave = findSlaveForCamera(camera);
if (slave)
{
if (camera->getReferenceFrame()==osg::Camera::RELATIVE_RF && slave->_useMastersSceneData)
{
osg::Viewport* viewport = camera->getViewport();
osg::Matrix localCameraVPW = camera->getViewMatrix() * camera->getProjectionMatrix();
if (viewport)
{
localCameraVPW *= viewport->computeWindowMatrix();
}
osg::Matrix matrix( osg::Matrix::inverse(localCameraVPW) * masterCameraVPW );
osg::Vec3d new_coord = osg::Vec3d(x,y,0.0) * matrix;
event.addPointerData(new osgGA::PointerData(getCamera(), new_coord.x(), master_min_x, master_max_x,
new_coord.y(), master_min_y, master_max_y));
}
else if (!slave->_useMastersSceneData)
{
// Are their any RTT Camera's that this Camera depends upon for textures?
osg::ref_ptr<osgUtil::LineSegmentIntersector> ray = new osgUtil::LineSegmentIntersector(osgUtil::Intersector::WINDOW, x,y);
osgUtil::IntersectionVisitor iv(ray.get());
camera->accept(iv);
if (ray->containsIntersections())
{
osg::Vec3 tc;
osg::Texture* texture = ray->getFirstIntersection().getTextureLookUp(tc);
if (texture)
{
// look up Texture in RTT Camera's.
for(unsigned int i=0; i<getNumSlaves();++i)
{
osg::Camera* slave_camera = getSlave(i)._camera.get();
if (slave_camera)
{
osg::Camera::BufferAttachmentMap::const_iterator ba_itr = slave_camera->getBufferAttachmentMap().find(osg::Camera::COLOR_BUFFER);
if (ba_itr != slave_camera->getBufferAttachmentMap().end())
{
if (ba_itr->second._texture == texture)
{
osg::TextureRectangle* tr = dynamic_cast<osg::TextureRectangle*>(ba_itr->second._texture.get());
osg::TextureCubeMap* tcm = dynamic_cast<osg::TextureCubeMap*>(ba_itr->second._texture.get());
if (tr)
{
event.addPointerData(new osgGA::PointerData(slave_camera, tc.x(), 0.0f, static_cast<float>(tr->getTextureWidth()),
tc.y(), 0.0f, static_cast<float>(tr->getTextureHeight())));
}
else if (tcm)
{
OSG_NOTICE<<" Slave has matched texture cubemap"<<ba_itr->second._texture.get()<<", "<<ba_itr->second._face<<std::endl;
}
else
{
event.addPointerData(new osgGA::PointerData(slave_camera, tc.x(), 0.0f, 1.0f,
tc.y(), 0.0f, 1.0f));
}
}
}
}
}
}
}
}
}
}
}
void Viewer::generatePointerData(osgGA::GUIEventAdapter& event)
{
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(event.getGraphicsContext());
if (!gw) return;
float x = event.getX();
float y = event.getY();
bool invert_y = event.getMouseYOrientation()==osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS;
if (invert_y && gw->getTraits()) y = gw->getTraits()->height - y;
event.addPointerData(new osgGA::PointerData(gw, x, 0, gw->getTraits()->width,
y, 0, gw->getTraits()->height));
// new code for populating the PointerData
osgViewer::View* this_view = dynamic_cast<osgViewer::View*>(this);
osg::GraphicsContext::Cameras& cameras = gw->getCameras();
for(osg::GraphicsContext::Cameras::iterator citr = cameras.begin();
citr != cameras.end();
++citr)
{
osg::Camera* camera = *citr;
if (camera->getView()==this_view &&
camera->getAllowEventFocus() &&
camera->getRenderTargetImplementation()==osg::Camera::FRAME_BUFFER)
{
osg::Viewport* viewport = camera ? camera->getViewport() : 0;
if (viewport &&
x >= viewport->x() && y >= viewport->y() &&
x <= (viewport->x()+viewport->width()) && y <= (viewport->y()+viewport->height()) )
{
event.addPointerData(new osgGA::PointerData(camera, (x-viewport->x())/viewport->width()*2.0f-1.0f, -1.0, 1.0,
(y-viewport->y())/viewport->height()*2.0f-1.0f, -1.0, 1.0));
// if camera isn't the master it must be a slave and could need reprojecting.
if (camera!=getCamera())
{
generateSlavePointerData(camera, event);
}
}
}
}
}
void Viewer::reprojectPointerData(osgGA::GUIEventAdapter& source_event, osgGA::GUIEventAdapter& dest_event)
{
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(dest_event.getGraphicsContext());
if (!gw) return;
float x = dest_event.getX();
float y = dest_event.getY();
bool invert_y = dest_event.getMouseYOrientation()==osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS;
if (invert_y && gw->getTraits()) y = gw->getTraits()->height - y;
dest_event.addPointerData(new osgGA::PointerData(gw, x, 0, gw->getTraits()->width,
y, 0, gw->getTraits()->height));
osg::Camera* camera = (source_event.getNumPointerData()>=2) ? dynamic_cast<osg::Camera*>(source_event.getPointerData(1)->object.get()) : 0;
osg::Viewport* viewport = camera ? camera->getViewport() : 0;
if (!viewport) return;
dest_event.addPointerData(new osgGA::PointerData(camera, (x-viewport->x())/viewport->width()*2.0f-1.0f, -1.0, 1.0,
(y-viewport->y())/viewport->height()*2.0f-1.0f, -1.0, 1.0));
// if camera isn't the master it must be a slave and could need reprojecting.
if (camera!=getCamera())
{
generateSlavePointerData(camera, dest_event);
}
}
void Viewer::eventTraversal()
{
if (_done) return;
double cutOffTime = _frameStamp->getReferenceTime();
double beginEventTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
// OSG_NOTICE<<"Viewer::frameEventTraversal()."<<std::endl;
// need to copy events from the GraphicsWindow's into local EventQueue;
osgGA::EventQueue::Events events;
Contexts contexts;
getContexts(contexts);
// set done if there are no windows
checkWindowStatus(contexts);
if (_done) return;
osgGA::GUIEventAdapter* eventState = getEventQueue()->getCurrentEventState();
// get events from user Devices attached to Viewer.
for(Devices::iterator eitr = _eventSources.begin();
eitr != _eventSources.end();
++eitr)
{
osgGA::Device* es = eitr->get();
if (es->getCapabilities() & osgGA::Device::RECEIVE_EVENTS)
es->checkEvents();
// open question, will we need to reproject mouse coordinates into current view's coordinate frame as is down for GraphicsWindow provided events?
// for now assume now and just get the events directly without any reprojection.
es->getEventQueue()->takeEvents(events, cutOffTime);
}
// get events from all windows attached to Viewer.
for(Contexts::iterator citr = contexts.begin();
citr != contexts.end();
++citr)
{
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(*citr);
if (gw)
{
gw->checkEvents();
osgGA::EventQueue::Events gw_events;
gw->getEventQueue()->takeEvents(gw_events, cutOffTime);
osgGA::EventQueue::Events::iterator itr;
for(itr = gw_events.begin();
itr != gw_events.end();
++itr)
{
osgGA::GUIEventAdapter* event = itr->get();
event->setGraphicsContext(gw);
switch(event->getEventType())
{
case(osgGA::GUIEventAdapter::PUSH):
case(osgGA::GUIEventAdapter::RELEASE):
case(osgGA::GUIEventAdapter::DOUBLECLICK):
case(osgGA::GUIEventAdapter::MOVE):
case(osgGA::GUIEventAdapter::DRAG):
{
if (event->getEventType()!=osgGA::GUIEventAdapter::DRAG ||
eventState->getGraphicsContext()!=event->getGraphicsContext() ||
eventState->getNumPointerData()<2)
{
generatePointerData(*event);
}
else
{
reprojectPointerData(*eventState, *event);
}
#if 0
// assign topmost PointeData settings as the events X,Y and InputRange
osgGA::PointerData* pd = event->getPointerData(event->getNumPointerData()-1);
event->setX(pd->x);
event->setY(pd->y);
event->setInputRange(pd->xMin, pd->yMin, pd->xMax, pd->yMax);
event->setMouseYOrientation(osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS);
#else
if (event->getMouseYOrientation()!=osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS)
{
event->setY((event->getYmax()-event->getY())+event->getYmin());
event->setMouseYOrientation(osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS);
}
#endif
eventState->copyPointerDataFrom(*event);
break;
}
default:
event->copyPointerDataFrom(*eventState);
break;
}
events.push_back(event);
}
for(itr = gw_events.begin();
itr != gw_events.end();
++itr)
{
osgGA::GUIEventAdapter* event = itr->get();
switch(event->getEventType())
{
case(osgGA::GUIEventAdapter::CLOSE_WINDOW):
{
bool wasThreading = areThreadsRunning();
if (wasThreading) stopThreading();
gw->close();
_currentContext = NULL;
if (wasThreading) startThreading();
break;
}
default:
break;
}
}
}
}
// create a frame event for the new frame.
_eventQueue->frame( getFrameStamp()->getReferenceTime() );
// OSG_NOTICE<<"mouseEventState Xmin = "<<eventState->getXmin()<<" Ymin="<<eventState->getYmin()<<" xMax="<<eventState->getXmax()<<" Ymax="<<eventState->getYmax()<<std::endl;
_eventQueue->takeEvents(events, cutOffTime);
// OSG_NOTICE<<"Events "<<events.size()<<std::endl;
if ((_keyEventSetsDone!=0) || _quitEventSetsDone)
{
for(osgGA::EventQueue::Events::iterator itr = events.begin();
itr != events.end();
++itr)
{
osgGA::GUIEventAdapter* event = itr->get();
switch(event->getEventType())
{
case(osgGA::GUIEventAdapter::KEYUP):
if (_keyEventSetsDone && event->getKey()==_keyEventSetsDone) _done = true;
break;
case(osgGA::GUIEventAdapter::QUIT_APPLICATION):
if (_quitEventSetsDone) _done = true;
break;
default:
break;
}
}
}
if (_done) return;
if (_eventVisitor.valid() && getSceneData())
{
_eventVisitor->setFrameStamp(getFrameStamp());
_eventVisitor->setTraversalNumber(getFrameStamp()->getFrameNumber());
for(osgGA::EventQueue::Events::iterator itr = events.begin();
itr != events.end();
++itr)
{
osgGA::GUIEventAdapter* event = itr->get();
_eventVisitor->reset();
_eventVisitor->addEvent( event );
getSceneData()->accept(*_eventVisitor);
// Do EventTraversal for slaves with their own subgraph
for(unsigned int i=0; i<getNumSlaves(); ++i)
{
osg::View::Slave& slave = getSlave(i);
osg::Camera* camera = slave._camera.get();
if(camera && !slave._useMastersSceneData)
{
camera->accept(*_eventVisitor);
}
}
// call any camera event callbacks, but only traverse that callback, don't traverse its subgraph
// leave that to the scene update traversal.
osg::NodeVisitor::TraversalMode tm = _eventVisitor->getTraversalMode();
_eventVisitor->setTraversalMode(osg::NodeVisitor::TRAVERSE_NONE);
if (_camera.valid() && _camera->getEventCallback()) _camera->accept(*_eventVisitor);
for(unsigned int i=0; i<getNumSlaves(); ++i)
{
osg::View::Slave& slave = getSlave(i);
osg::Camera* camera = slave._camera.get();
if (camera && slave._useMastersSceneData && camera->getEventCallback())
{
camera->accept(*_eventVisitor);
}
}
_eventVisitor->setTraversalMode(tm);
}
}
for(osgGA::EventQueue::Events::iterator itr = events.begin();
itr != events.end();
++itr)
{
osgGA::GUIEventAdapter* event = itr->get();
for(EventHandlers::iterator hitr = _eventHandlers.begin();
hitr != _eventHandlers.end();
++hitr)
{
(*hitr)->handleWithCheckAgainstIgnoreHandledEventsMask( *event, *this, 0, _eventVisitor.get());
}
}
for(osgGA::EventQueue::Events::iterator itr = events.begin();
itr != events.end();
++itr)
{
osgGA::GUIEventAdapter* event = itr->get();
if (_cameraManipulator.valid())
{
_cameraManipulator->handleWithCheckAgainstIgnoreHandledEventsMask( *event, *this);
}
}
if (getViewerStats() && getViewerStats()->collectStats("event"))
{
double endEventTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
// update current frames stats
getViewerStats()->setAttribute(_frameStamp->getFrameNumber(), "Event traversal begin time", beginEventTraversal);
getViewerStats()->setAttribute(_frameStamp->getFrameNumber(), "Event traversal end time", endEventTraversal);
getViewerStats()->setAttribute(_frameStamp->getFrameNumber(), "Event traversal time taken", endEventTraversal-beginEventTraversal);
}
}
void Viewer::updateTraversal()
{
if (_done) return;
double beginUpdateTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
_updateVisitor->reset();
_updateVisitor->setFrameStamp(getFrameStamp());
_updateVisitor->setTraversalNumber(getFrameStamp()->getFrameNumber());
_scene->updateSceneGraph(*_updateVisitor);
// if we have a shared state manager prune any unused entries
if (osgDB::Registry::instance()->getSharedStateManager())
osgDB::Registry::instance()->getSharedStateManager()->prune();
// update the Registry object cache.
osgDB::Registry::instance()->updateTimeStampOfObjectsInCacheWithExternalReferences(*getFrameStamp());
osgDB::Registry::instance()->removeExpiredObjectsInCache(*getFrameStamp());
if (_updateOperations.valid())
{
_updateOperations->runOperations(this);
}
if (_incrementalCompileOperation.valid())
{
// merge subgraphs that have been compiled by the incremental compiler operation.
_incrementalCompileOperation->mergeCompiledSubgraphs(getFrameStamp());
}
{
// Do UpdateTraversal for slaves with their own subgraph
for(unsigned int i=0; i<getNumSlaves(); ++i)
{
osg::View::Slave& slave = getSlave(i);
osg::Camera* camera = slave._camera.get();
if(camera && !slave._useMastersSceneData)
{
camera->accept(*_updateVisitor);
}
}
}
{
// call any camera update callbacks, but only traverse that callback, don't traverse its subgraph
// leave that to the scene update traversal.
osg::NodeVisitor::TraversalMode tm = _updateVisitor->getTraversalMode();
_updateVisitor->setTraversalMode(osg::NodeVisitor::TRAVERSE_NONE);
if (_camera.valid() && _camera->getUpdateCallback()) _camera->accept(*_updateVisitor);
for(unsigned int i=0; i<getNumSlaves(); ++i)
{
osg::View::Slave& slave = getSlave(i);
osg::Camera* camera = slave._camera.get();
if (camera && slave._useMastersSceneData && camera->getUpdateCallback())
{
camera->accept(*_updateVisitor);
}
}
_updateVisitor->setTraversalMode(tm);
}
if (_cameraManipulator.valid())
{
setFusionDistance( getCameraManipulator()->getFusionDistanceMode(),
getCameraManipulator()->getFusionDistanceValue() );
_cameraManipulator->updateCamera(*_camera);
}
updateSlaves();
if (getViewerStats() && getViewerStats()->collectStats("update"))
{
double endUpdateTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
// update current frames stats
getViewerStats()->setAttribute(_frameStamp->getFrameNumber(), "Update traversal begin time", beginUpdateTraversal);
getViewerStats()->setAttribute(_frameStamp->getFrameNumber(), "Update traversal end time", endUpdateTraversal);
getViewerStats()->setAttribute(_frameStamp->getFrameNumber(), "Update traversal time taken", endUpdateTraversal-beginUpdateTraversal);
}
}
void Viewer::getScenes(Scenes& scenes, bool onlyValid)
{
scenes.clear();
scenes.push_back(_scene.get());
}
void Viewer::getViews(Views& views, bool onlyValid)
{
views.clear();
views.push_back(this);
}
void Viewer::getAllThreads(Threads& threads, bool onlyActive)
{
threads.clear();
OperationThreads operationThreads;
getOperationThreads(operationThreads);
for(OperationThreads::iterator itr = operationThreads.begin();
itr != operationThreads.end();
++itr)
{
threads.push_back(*itr);
}
if (_scene.valid())
{
osgDB::DatabasePager* dp = _scene->getDatabasePager();
if (dp)
{
for(unsigned int i=0; i<dp->getNumDatabaseThreads(); ++i)
{
osgDB::DatabasePager::DatabaseThread* dt = dp->getDatabaseThread(i);
if (!onlyActive || dt->isRunning())
{
threads.push_back(dt);
}
}
}
}
}
void Viewer::getOperationThreads(OperationThreads& threads, bool onlyActive)
{
threads.clear();
Contexts contexts;
getContexts(contexts);
for(Contexts::iterator gcitr = contexts.begin();
gcitr != contexts.end();
++gcitr)
{
osg::GraphicsContext* gc = *gcitr;
if (gc->getGraphicsThread() &&
(!onlyActive || gc->getGraphicsThread()->isRunning()) )
{
threads.push_back(gc->getGraphicsThread());
}
}
Cameras cameras;
getCameras(cameras);
for(Cameras::iterator citr = cameras.begin();
citr != cameras.end();
++citr)
{
osg::Camera* camera = *citr;
if (camera->getCameraThread() &&
(!onlyActive || camera->getCameraThread()->isRunning()) )
{
threads.push_back(camera->getCameraThread());
}
}
}
void Viewer::getContexts(Contexts& contexts, bool onlyValid)
{
typedef std::set<osg::GraphicsContext*> ContextSet;
ContextSet contextSet;
contexts.clear();
if (_camera.valid() &&
_camera->getGraphicsContext() &&
(_camera->getGraphicsContext()->valid() || !onlyValid))
{
contextSet.insert(_camera->getGraphicsContext());
contexts.push_back(_camera->getGraphicsContext());
}
for(unsigned int i=0; i<getNumSlaves(); ++i)
{
Slave& slave = getSlave(i);
osg::GraphicsContext* sgc = slave._camera.valid() ? slave._camera->getGraphicsContext() : 0;
if (sgc && (sgc->valid() || !onlyValid))
{
if (contextSet.count(sgc)==0)
{
contextSet.insert(sgc);
contexts.push_back(sgc);
}
}
}
}
void Viewer::getCameras(Cameras& cameras, bool onlyActive)
{
cameras.clear();
if (_camera.valid() &&
(!onlyActive || (_camera->getGraphicsContext() && _camera->getGraphicsContext()->valid())) ) cameras.push_back(_camera.get());
for(Slaves::iterator itr = _slaves.begin();
itr != _slaves.end();
++itr)
{
if (itr->_camera.valid() &&
(!onlyActive || (itr->_camera->getGraphicsContext() && itr->_camera->getGraphicsContext()->valid())) ) cameras.push_back(itr->_camera.get());
}
}
double Viewer::elapsedTime()
{
return osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
}
void Viewer::getUsage(osg::ApplicationUsage& usage) const
{
if (_cameraManipulator.valid())
{
_cameraManipulator->getUsage(usage);
}
for(EventHandlers::const_iterator hitr = _eventHandlers.begin();
hitr != _eventHandlers.end();
++hitr)
{
(*hitr)->getUsage(usage);
}
}
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