bool PrintPosterHandler::handle(
const osgGA::GUIEventAdapter& ea
, osgGA::GUIActionAdapter& aa)
{
osgViewer::View* view = dynamic_cast<osgViewer::View*>(&aa);
if(!view)
return false;
switch(ea.getEventType())
{
case osgGA::GUIEventAdapter::FRAME:
{
// Wait until all paged LOD are processed
if(view->getDatabasePager() && view->getDatabasePager()->getRequestsInProgress())
break;
if(m_isFinished)
{
const osg::FrameStamp* fs = view->getFrameStamp();
if((fs->getFrameNumber() % 2) == 0)
{
aggregateAndFreeTiles(); // Record images and unref them to free memory
std::cout << "finished" << std::endl;
write();
m_isFinished = false;
}
}
if(m_make)
make(view);
if(m_making)
{
// Every "copy-to-image" process seems to be finished in 2 frames.
// So record them and dispatch cameras to next tiles.
const osg::FrameStamp* fs = view->getFrameStamp();
if((fs->getFrameNumber() % 2) == 0)
{
// Record images and unref them to free memory
aggregateAndFreeTiles();
osg::Camera* camera = 0;
while((camera = getAvailableCamera()) != NULL)
{
std::cout << "Binding sub-camera " << m_currentRow << "_" << m_currentColumn
<< " to image..." << std::endl;
bindCameraToImage(camera, m_currentRow, m_currentColumn);
if (m_currentColumn < m_tileColumns - 1)
m_currentColumn++;
else
{
if(m_currentRow < m_tileRows - 1)
{
m_currentRow++;
m_currentColumn = 0;
}
else
{
m_making = false;
m_isFinished = true;
std::cout << "Sub-cameras dispatching finished." << std::endl;
break;
}
}
}
m_cameraIndex = m_cameraRoot->getNumChildren();
}
}
break;
}
case osgGA::GUIEventAdapter::KEYDOWN:
{
if ( ea.getKey()=='p' || ea.getKey()=='P' )
{
print();
return true;
}
break;
}
default:
break;
}
return false;
}
void PosterPrinter::frame( const osg::FrameStamp* fs, osg::Node* node )
{
// Add cull callbacks to all existing paged nodes,
// and advance frame when all callbacks are dispatched.
if ( addCullCallbacks(fs, node) )
return;
if ( _isFinishing )
{
if ( (fs->getFrameNumber()-_lastBindingFrame)>2 )
{
// Record images and the final poster
recordImages();
if ( _finalPoster.valid() )
{
std::cout << "Writing final result to file..." << std::endl;
osgDB::writeImageFile( *_finalPoster, _outputPosterName );
}
// Release all cull callbacks to free unused paged nodes
removeCullCallbacks( node );
_visitor->clearNames();
_isFinishing = false;
std::cout << "Recording images finished." << std::endl;
}
}
if ( _isRunning )
{
// Every "copy-to-image" process seems to be finished in 2 frames.
// So record them and dispatch camera to next tiles.
if ( (fs->getFrameNumber()-_lastBindingFrame)>2 )
{
// Record images and unref them to free memory
recordImages();
// Release all cull callbacks to free unused paged nodes
removeCullCallbacks( node );
_visitor->clearNames();
if ( _camera.valid() )
{
std::cout << "Binding sub-camera " << _currentRow << "_" << _currentColumn
<< " to image..." << std::endl;
bindCameraToImage( _camera.get(), _currentRow, _currentColumn );
if ( _currentColumn<_tileColumns-1 )
{
_currentColumn++;
}
else
{
if ( _currentRow<_tileRows-1 )
{
_currentRow++;
_currentColumn = 0;
}
else
{
_isRunning = false;
_isFinishing = true;
}
}
}
_lastBindingFrame = fs->getFrameNumber();
}
}
}
