void CompoundUpdateOutputVisitor::_updateOutput( Compound* compound )
{
const Channel* channel = compound->getChannel();
const TileQueues& outputQueues = compound->getOutputTileQueues();
for( TileQueuesCIter i = outputQueues.begin();
i != outputQueues.end(); ++i )
{
//----- Check uniqueness of output queue name
TileQueue* queue = *i;
const std::string& name = queue->getName();
if( _outputTileQueues.find( name ) != _outputTileQueues.end())
{
LBWARN << "Multiple output queues of the same name are unsupported"
<< ", ignoring output queue " << name << std::endl;
queue->unsetData();
continue;
}
queue->cycleData( _frameNumber, compound );
//----- Generate tile task packets
_generateTiles( queue, compound );
_outputTileQueues[name] = queue;
}
if( !compound->testInheritTask( fabric::TASK_READBACK ) || !channel )
return;
const Frames& outputFrames = compound->getOutputFrames();
if( outputFrames.empty( ))
{
compound->unsetInheritTask( fabric::TASK_READBACK );
return;
}
for( Frames::const_iterator i = outputFrames.begin();
i != outputFrames.end(); ++i )
{
//----- Check uniqueness of output frame name
Frame* frame = *i;
const std::string& name = frame->getName();
if( _outputFrames.find( name ) != _outputFrames.end())
{
LBWARN << "Multiple output frames of the same name are unsupported"
<< ", ignoring output frame " << name << std::endl;
frame->unsetData();
continue;
}
//----- compute readback area
const Viewport& frameVP = frame->getViewport();
const PixelViewport& inheritPVP = compound->getInheritPixelViewport();
PixelViewport framePVP( inheritPVP );
framePVP.apply( frameVP );
if( !framePVP.hasArea( )) // output frame has no pixels
{
LBINFO << "Skipping output frame " << name << ", no pixels"
<< std::endl;
frame->unsetData();
continue;
}
//----- Create new frame datas
// one frame data used for each eye pass
// data is set only on master frame data (will copy to all others)
frame->cycleData( _frameNumber, compound );
FrameData* frameData = frame->getMasterData();
LBASSERT( frameData );
LBLOG( LOG_ASSEMBLY )
<< lunchbox::disableFlush << "Output frame \"" << name << "\" id "
<< frame->getID() << " v" << frame->getVersion()+1
<< " data id " << frameData->getID() << " v"
<< frameData->getVersion() + 1 << " on channel \""
<< channel->getName() << "\" tile pos " << framePVP.x << ", "
<< framePVP.y;
//----- Set frame data parameters:
// 1) offset is position wrt destination view
const bool usesTiles = !compound->getInputTileQueues().empty();
frameData->setOffset( usesTiles ? Vector2i( 0 , 0 ) :
Vector2i( framePVP.x, framePVP.y ) );
// 2) pvp is area within channel
framePVP.x = static_cast< int32_t >( frameVP.x * inheritPVP.w );
framePVP.y = static_cast< int32_t >( frameVP.y * inheritPVP.h );
frameData->setPixelViewport( framePVP );
// 3) image buffers and storage type
uint32_t buffers = frame->getBuffers();
frameData->setType( frame->getType() );
frameData->setBuffers( buffers == eq::Frame::BUFFER_UNDEFINED ?
compound->getInheritBuffers() : buffers );
// 4) (source) render context
frameData->setRange( compound->getInheritRange( ));
frameData->setPixel( compound->getInheritPixel( ));
frameData->setSubPixel( compound->getInheritSubPixel( ));
frameData->setPeriod( compound->getInheritPeriod( ));
frameData->setPhase( compound->getInheritPhase( ));
//----- Set frame parameters:
// 1) offset is position wrt window, i.e., the channel position
if( compound->getInheritChannel() == channel )
frame->setOffset( Vector2i( inheritPVP.x, inheritPVP.y ));
else
{
const PixelViewport& nativePVP = channel->getPixelViewport();
frame->setOffset( Vector2i( nativePVP.x, nativePVP.y ));
}
// 2) zoom
_updateZoom( compound, frame );
//----- Commit
frame->commitData();
_outputFrames[name] = frame;
LBLOG( LOG_ASSEMBLY )
<< " buffers " << frameData->getBuffers() << " read area "
<< framePVP << " readback " << frame->getZoom() << " assemble "
<< frameData->getZoom()<< lunchbox::enableFlush << std::endl ;
}
}
